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1 /* |
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2 Leaflet, a JavaScript library for mobile-friendly interactive maps. http://leafletjs.com |
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3 (c) 2010-2013, Vladimir Agafonkin, CloudMade |
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4 */ |
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5 (function (window, document, undefined) {/* |
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6 * The L namespace contains all Leaflet classes and functions. |
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7 * This code allows you to handle any possible namespace conflicts. |
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8 */ |
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9 |
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10 var L, originalL; |
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11 |
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12 if (typeof exports !== undefined + '') { |
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13 L = exports; |
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14 } else { |
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15 originalL = window.L; |
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16 L = {}; |
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17 |
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18 L.noConflict = function () { |
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19 window.L = originalL; |
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20 return this; |
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21 }; |
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22 |
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23 window.L = L; |
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24 } |
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25 |
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26 L.version = '0.5.1'; |
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27 |
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28 |
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29 /* |
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30 * L.Util contains various utility functions used throughout Leaflet code. |
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31 */ |
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32 |
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33 L.Util = { |
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34 extend: function (dest) { // (Object[, Object, ...]) -> |
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35 var sources = Array.prototype.slice.call(arguments, 1), |
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36 i, j, len, src; |
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37 |
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38 for (j = 0, len = sources.length; j < len; j++) { |
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39 src = sources[j] || {}; |
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40 for (i in src) { |
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41 if (src.hasOwnProperty(i)) { |
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42 dest[i] = src[i]; |
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43 } |
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44 } |
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45 } |
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46 return dest; |
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47 }, |
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48 |
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49 bind: function (fn, obj) { // (Function, Object) -> Function |
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50 var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null; |
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51 return function () { |
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52 return fn.apply(obj, args || arguments); |
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53 }; |
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54 }, |
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55 |
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56 stamp: (function () { |
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57 var lastId = 0, key = '_leaflet_id'; |
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58 return function (/*Object*/ obj) { |
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59 obj[key] = obj[key] || ++lastId; |
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60 return obj[key]; |
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61 }; |
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62 }()), |
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63 |
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64 limitExecByInterval: function (fn, time, context) { |
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65 var lock, execOnUnlock; |
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66 |
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67 return function wrapperFn() { |
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68 var args = arguments; |
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69 |
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70 if (lock) { |
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71 execOnUnlock = true; |
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72 return; |
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73 } |
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74 |
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75 lock = true; |
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76 |
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77 setTimeout(function () { |
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78 lock = false; |
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79 |
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80 if (execOnUnlock) { |
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81 wrapperFn.apply(context, args); |
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82 execOnUnlock = false; |
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83 } |
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84 }, time); |
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85 |
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86 fn.apply(context, args); |
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87 }; |
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88 }, |
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89 |
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90 falseFn: function () { |
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91 return false; |
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92 }, |
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93 |
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94 formatNum: function (num, digits) { |
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95 var pow = Math.pow(10, digits || 5); |
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96 return Math.round(num * pow) / pow; |
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97 }, |
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98 |
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99 splitWords: function (str) { |
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100 return str.replace(/^\s+|\s+$/g, '').split(/\s+/); |
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101 }, |
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102 |
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103 setOptions: function (obj, options) { |
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104 obj.options = L.extend({}, obj.options, options); |
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105 return obj.options; |
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106 }, |
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107 |
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108 getParamString: function (obj, existingUrl) { |
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109 var params = []; |
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110 for (var i in obj) { |
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111 if (obj.hasOwnProperty(i)) { |
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112 params.push(i + '=' + obj[i]); |
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113 } |
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114 } |
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115 return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&'); |
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116 }, |
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117 |
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118 template: function (str, data) { |
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119 return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) { |
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120 var value = data[key]; |
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121 if (!data.hasOwnProperty(key)) { |
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122 throw new Error('No value provided for variable ' + str); |
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123 } |
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124 return value; |
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125 }); |
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126 }, |
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127 |
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128 isArray: function (obj) { |
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129 return (Object.prototype.toString.call(obj) === '[object Array]'); |
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130 }, |
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131 |
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132 emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=' |
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133 }; |
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134 |
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135 (function () { |
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136 |
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137 // inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/ |
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138 |
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139 function getPrefixed(name) { |
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140 var i, fn, |
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141 prefixes = ['webkit', 'moz', 'o', 'ms']; |
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142 |
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143 for (i = 0; i < prefixes.length && !fn; i++) { |
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144 fn = window[prefixes[i] + name]; |
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145 } |
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146 |
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147 return fn; |
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148 } |
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149 |
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150 var lastTime = 0; |
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151 |
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152 function timeoutDefer(fn) { |
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153 var time = +new Date(), |
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154 timeToCall = Math.max(0, 16 - (time - lastTime)); |
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155 |
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156 lastTime = time + timeToCall; |
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157 return window.setTimeout(fn, timeToCall); |
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158 } |
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159 |
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160 var requestFn = window.requestAnimationFrame || |
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161 getPrefixed('RequestAnimationFrame') || timeoutDefer; |
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162 |
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163 var cancelFn = window.cancelAnimationFrame || |
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164 getPrefixed('CancelAnimationFrame') || |
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165 getPrefixed('CancelRequestAnimationFrame') || |
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166 function (id) { window.clearTimeout(id); }; |
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167 |
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168 |
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169 L.Util.requestAnimFrame = function (fn, context, immediate, element) { |
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170 fn = L.bind(fn, context); |
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171 |
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172 if (immediate && requestFn === timeoutDefer) { |
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173 fn(); |
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174 } else { |
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175 return requestFn.call(window, fn, element); |
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176 } |
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177 }; |
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178 |
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179 L.Util.cancelAnimFrame = function (id) { |
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180 if (id) { |
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181 cancelFn.call(window, id); |
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182 } |
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183 }; |
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184 |
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185 }()); |
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186 |
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187 // shortcuts for most used utility functions |
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188 L.extend = L.Util.extend; |
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189 L.bind = L.Util.bind; |
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190 L.stamp = L.Util.stamp; |
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191 L.setOptions = L.Util.setOptions; |
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192 |
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193 |
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194 /* |
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195 * L.Class powers the OOP facilities of the library. |
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196 * Thanks to John Resig and Dean Edwards for inspiration! |
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197 */ |
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198 |
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199 L.Class = function () {}; |
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200 |
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201 L.Class.extend = function (props) { |
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202 |
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203 // extended class with the new prototype |
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204 var NewClass = function () { |
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205 |
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206 // call the constructor |
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207 if (this.initialize) { |
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208 this.initialize.apply(this, arguments); |
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209 } |
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210 |
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211 // call all constructor hooks |
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212 if (this._initHooks) { |
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213 this.callInitHooks(); |
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214 } |
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215 }; |
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216 |
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217 // instantiate class without calling constructor |
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218 var F = function () {}; |
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219 F.prototype = this.prototype; |
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220 |
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221 var proto = new F(); |
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222 proto.constructor = NewClass; |
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223 |
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224 NewClass.prototype = proto; |
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225 |
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226 //inherit parent's statics |
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227 for (var i in this) { |
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228 if (this.hasOwnProperty(i) && i !== 'prototype') { |
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229 NewClass[i] = this[i]; |
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230 } |
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231 } |
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232 |
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233 // mix static properties into the class |
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234 if (props.statics) { |
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235 L.extend(NewClass, props.statics); |
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236 delete props.statics; |
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237 } |
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238 |
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239 // mix includes into the prototype |
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240 if (props.includes) { |
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241 L.Util.extend.apply(null, [proto].concat(props.includes)); |
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242 delete props.includes; |
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243 } |
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244 |
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245 // merge options |
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246 if (props.options && proto.options) { |
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247 props.options = L.extend({}, proto.options, props.options); |
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248 } |
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249 |
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250 // mix given properties into the prototype |
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251 L.extend(proto, props); |
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252 |
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253 proto._initHooks = []; |
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254 |
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255 var parent = this; |
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256 // add method for calling all hooks |
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257 proto.callInitHooks = function () { |
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258 |
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259 if (this._initHooksCalled) { return; } |
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260 |
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261 if (parent.prototype.callInitHooks) { |
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262 parent.prototype.callInitHooks.call(this); |
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263 } |
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264 |
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265 this._initHooksCalled = true; |
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266 |
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267 for (var i = 0, len = proto._initHooks.length; i < len; i++) { |
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268 proto._initHooks[i].call(this); |
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269 } |
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270 }; |
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271 |
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272 return NewClass; |
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273 }; |
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274 |
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275 |
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276 // method for adding properties to prototype |
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277 L.Class.include = function (props) { |
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278 L.extend(this.prototype, props); |
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279 }; |
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280 |
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281 // merge new default options to the Class |
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282 L.Class.mergeOptions = function (options) { |
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283 L.extend(this.prototype.options, options); |
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284 }; |
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285 |
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286 // add a constructor hook |
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287 L.Class.addInitHook = function (fn) { // (Function) || (String, args...) |
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288 var args = Array.prototype.slice.call(arguments, 1); |
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289 |
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290 var init = typeof fn === 'function' ? fn : function () { |
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291 this[fn].apply(this, args); |
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292 }; |
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293 |
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294 this.prototype._initHooks = this.prototype._initHooks || []; |
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295 this.prototype._initHooks.push(init); |
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296 }; |
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297 |
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298 |
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299 /* |
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300 * L.Mixin.Events is used to add custom events functionality to Leaflet classes. |
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301 */ |
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302 |
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303 var key = '_leaflet_events'; |
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304 |
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305 L.Mixin = {}; |
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306 |
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307 L.Mixin.Events = { |
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308 |
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309 addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object]) |
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310 var events = this[key] = this[key] || {}, |
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311 type, i, len; |
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312 |
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313 // Types can be a map of types/handlers |
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314 if (typeof types === 'object') { |
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315 for (type in types) { |
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316 if (types.hasOwnProperty(type)) { |
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317 this.addEventListener(type, types[type], fn); |
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318 } |
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319 } |
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320 |
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321 return this; |
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322 } |
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323 |
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324 types = L.Util.splitWords(types); |
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325 |
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326 for (i = 0, len = types.length; i < len; i++) { |
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327 events[types[i]] = events[types[i]] || []; |
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328 events[types[i]].push({ |
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329 action: fn, |
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330 context: context || this |
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331 }); |
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332 } |
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333 |
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334 return this; |
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335 }, |
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336 |
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337 hasEventListeners: function (type) { // (String) -> Boolean |
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338 return (key in this) && (type in this[key]) && (this[key][type].length > 0); |
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339 }, |
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340 |
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341 removeEventListener: function (types, fn, context) { // (String[, Function, Object]) or (Object[, Object]) |
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342 var events = this[key], |
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343 type, i, len, listeners, j; |
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344 |
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345 if (typeof types === 'object') { |
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346 for (type in types) { |
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347 if (types.hasOwnProperty(type)) { |
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348 this.removeEventListener(type, types[type], fn); |
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349 } |
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350 } |
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351 |
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352 return this; |
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353 } |
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354 |
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355 types = L.Util.splitWords(types); |
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356 |
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357 for (i = 0, len = types.length; i < len; i++) { |
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358 |
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359 if (this.hasEventListeners(types[i])) { |
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360 listeners = events[types[i]]; |
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361 |
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362 for (j = listeners.length - 1; j >= 0; j--) { |
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363 if ( |
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364 (!fn || listeners[j].action === fn) && |
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365 (!context || (listeners[j].context === context)) |
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366 ) { |
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367 listeners.splice(j, 1); |
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368 } |
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369 } |
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370 } |
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371 } |
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372 |
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373 return this; |
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374 }, |
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375 |
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376 fireEvent: function (type, data) { // (String[, Object]) |
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377 if (!this.hasEventListeners(type)) { |
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378 return this; |
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379 } |
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380 |
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381 var event = L.extend({ |
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382 type: type, |
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383 target: this |
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384 }, data); |
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385 |
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386 var listeners = this[key][type].slice(); |
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387 |
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388 for (var i = 0, len = listeners.length; i < len; i++) { |
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389 listeners[i].action.call(listeners[i].context || this, event); |
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390 } |
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391 |
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392 return this; |
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393 } |
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394 }; |
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395 |
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396 L.Mixin.Events.on = L.Mixin.Events.addEventListener; |
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397 L.Mixin.Events.off = L.Mixin.Events.removeEventListener; |
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398 L.Mixin.Events.fire = L.Mixin.Events.fireEvent; |
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399 |
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400 |
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401 /* |
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402 * L.Browser handles different browser and feature detections for internal Leaflet use. |
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403 */ |
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404 |
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405 (function () { |
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406 |
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407 var ie = !!window.ActiveXObject, |
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408 ie6 = ie && !window.XMLHttpRequest, |
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409 ie7 = ie && !document.querySelector, |
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410 |
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411 // terrible browser detection to work around Safari / iOS / Android browser bugs |
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412 ua = navigator.userAgent.toLowerCase(), |
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413 webkit = ua.indexOf('webkit') !== -1, |
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414 chrome = ua.indexOf('chrome') !== -1, |
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415 android = ua.indexOf('android') !== -1, |
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416 android23 = ua.search('android [23]') !== -1, |
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417 |
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418 mobile = typeof orientation !== undefined + '', |
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419 msTouch = window.navigator && window.navigator.msPointerEnabled && |
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420 window.navigator.msMaxTouchPoints, |
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421 retina = ('devicePixelRatio' in window && window.devicePixelRatio > 1) || |
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422 ('matchMedia' in window && window.matchMedia('(min-resolution:144dpi)') && |
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423 window.matchMedia('(min-resolution:144dpi)').matches), |
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424 |
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425 doc = document.documentElement, |
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426 ie3d = ie && ('transition' in doc.style), |
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427 webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()), |
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428 gecko3d = 'MozPerspective' in doc.style, |
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429 opera3d = 'OTransition' in doc.style, |
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430 any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d); |
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431 |
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432 |
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433 var touch = !window.L_NO_TOUCH && (function () { |
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434 |
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435 var startName = 'ontouchstart'; |
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436 |
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437 // IE10+ (We simulate these into touch* events in L.DomEvent and L.DomEvent.MsTouch) or WebKit, etc. |
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438 if (msTouch || (startName in doc)) { |
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439 return true; |
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440 } |
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441 |
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442 // Firefox/Gecko |
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443 var div = document.createElement('div'), |
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444 supported = false; |
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445 |
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446 if (!div.setAttribute) { |
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447 return false; |
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448 } |
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449 div.setAttribute(startName, 'return;'); |
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450 |
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451 if (typeof div[startName] === 'function') { |
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452 supported = true; |
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453 } |
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454 |
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455 div.removeAttribute(startName); |
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456 div = null; |
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457 |
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458 return supported; |
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459 }()); |
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460 |
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461 |
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462 L.Browser = { |
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463 ie: ie, |
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464 ie6: ie6, |
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465 ie7: ie7, |
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466 webkit: webkit, |
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467 |
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468 android: android, |
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469 android23: android23, |
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470 |
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471 chrome: chrome, |
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472 |
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473 ie3d: ie3d, |
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474 webkit3d: webkit3d, |
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475 gecko3d: gecko3d, |
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476 opera3d: opera3d, |
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477 any3d: any3d, |
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478 |
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479 mobile: mobile, |
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480 mobileWebkit: mobile && webkit, |
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481 mobileWebkit3d: mobile && webkit3d, |
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482 mobileOpera: mobile && window.opera, |
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483 |
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484 touch: touch, |
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485 msTouch: msTouch, |
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486 |
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487 retina: retina |
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488 }; |
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489 |
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490 }()); |
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491 |
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492 |
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493 /* |
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494 * L.Point represents a point with x and y coordinates. |
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495 */ |
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496 |
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497 L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) { |
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498 this.x = (round ? Math.round(x) : x); |
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499 this.y = (round ? Math.round(y) : y); |
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500 }; |
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501 |
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502 L.Point.prototype = { |
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503 |
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504 clone: function () { |
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505 return new L.Point(this.x, this.y); |
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506 }, |
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507 |
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508 // non-destructive, returns a new point |
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509 add: function (point) { |
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510 return this.clone()._add(L.point(point)); |
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511 }, |
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512 |
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513 // destructive, used directly for performance in situations where it's safe to modify existing point |
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514 _add: function (point) { |
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515 this.x += point.x; |
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516 this.y += point.y; |
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517 return this; |
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518 }, |
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519 |
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520 subtract: function (point) { |
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521 return this.clone()._subtract(L.point(point)); |
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522 }, |
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523 |
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524 _subtract: function (point) { |
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525 this.x -= point.x; |
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526 this.y -= point.y; |
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527 return this; |
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528 }, |
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529 |
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530 divideBy: function (num) { |
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531 return this.clone()._divideBy(num); |
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532 }, |
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533 |
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534 _divideBy: function (num) { |
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535 this.x /= num; |
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536 this.y /= num; |
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537 return this; |
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538 }, |
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539 |
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540 multiplyBy: function (num) { |
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541 return this.clone()._multiplyBy(num); |
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542 }, |
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543 |
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544 _multiplyBy: function (num) { |
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545 this.x *= num; |
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546 this.y *= num; |
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547 return this; |
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548 }, |
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549 |
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550 round: function () { |
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551 return this.clone()._round(); |
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552 }, |
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553 |
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554 _round: function () { |
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555 this.x = Math.round(this.x); |
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556 this.y = Math.round(this.y); |
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557 return this; |
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558 }, |
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559 |
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560 floor: function () { |
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561 return this.clone()._floor(); |
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562 }, |
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563 |
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564 _floor: function () { |
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565 this.x = Math.floor(this.x); |
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566 this.y = Math.floor(this.y); |
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567 return this; |
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568 }, |
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569 |
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570 distanceTo: function (point) { |
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571 point = L.point(point); |
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572 |
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573 var x = point.x - this.x, |
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574 y = point.y - this.y; |
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575 |
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576 return Math.sqrt(x * x + y * y); |
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577 }, |
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578 |
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579 equals: function (point) { |
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580 return point.x === this.x && |
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581 point.y === this.y; |
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582 }, |
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583 |
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584 toString: function () { |
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585 return 'Point(' + |
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586 L.Util.formatNum(this.x) + ', ' + |
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587 L.Util.formatNum(this.y) + ')'; |
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588 } |
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589 }; |
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590 |
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591 L.point = function (x, y, round) { |
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592 if (x instanceof L.Point) { |
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593 return x; |
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594 } |
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595 if (L.Util.isArray(x)) { |
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596 return new L.Point(x[0], x[1]); |
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597 } |
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598 if (isNaN(x)) { |
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599 return x; |
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600 } |
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601 return new L.Point(x, y, round); |
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602 }; |
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603 |
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604 |
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605 /* |
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606 * L.Bounds represents a rectangular area on the screen in pixel coordinates. |
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607 */ |
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608 |
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609 L.Bounds = function (a, b) { //(Point, Point) or Point[] |
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610 if (!a) { return; } |
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611 |
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612 var points = b ? [a, b] : a; |
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613 |
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614 for (var i = 0, len = points.length; i < len; i++) { |
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615 this.extend(points[i]); |
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616 } |
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617 }; |
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618 |
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619 L.Bounds.prototype = { |
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620 // extend the bounds to contain the given point |
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621 extend: function (point) { // (Point) |
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622 point = L.point(point); |
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623 |
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624 if (!this.min && !this.max) { |
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625 this.min = point.clone(); |
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626 this.max = point.clone(); |
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627 } else { |
|
628 this.min.x = Math.min(point.x, this.min.x); |
|
629 this.max.x = Math.max(point.x, this.max.x); |
|
630 this.min.y = Math.min(point.y, this.min.y); |
|
631 this.max.y = Math.max(point.y, this.max.y); |
|
632 } |
|
633 return this; |
|
634 }, |
|
635 |
|
636 getCenter: function (round) { // (Boolean) -> Point |
|
637 return new L.Point( |
|
638 (this.min.x + this.max.x) / 2, |
|
639 (this.min.y + this.max.y) / 2, round); |
|
640 }, |
|
641 |
|
642 getBottomLeft: function () { // -> Point |
|
643 return new L.Point(this.min.x, this.max.y); |
|
644 }, |
|
645 |
|
646 getTopRight: function () { // -> Point |
|
647 return new L.Point(this.max.x, this.min.y); |
|
648 }, |
|
649 |
|
650 getSize: function () { |
|
651 return this.max.subtract(this.min); |
|
652 }, |
|
653 |
|
654 contains: function (obj) { // (Bounds) or (Point) -> Boolean |
|
655 var min, max; |
|
656 |
|
657 if (typeof obj[0] === 'number' || obj instanceof L.Point) { |
|
658 obj = L.point(obj); |
|
659 } else { |
|
660 obj = L.bounds(obj); |
|
661 } |
|
662 |
|
663 if (obj instanceof L.Bounds) { |
|
664 min = obj.min; |
|
665 max = obj.max; |
|
666 } else { |
|
667 min = max = obj; |
|
668 } |
|
669 |
|
670 return (min.x >= this.min.x) && |
|
671 (max.x <= this.max.x) && |
|
672 (min.y >= this.min.y) && |
|
673 (max.y <= this.max.y); |
|
674 }, |
|
675 |
|
676 intersects: function (bounds) { // (Bounds) -> Boolean |
|
677 bounds = L.bounds(bounds); |
|
678 |
|
679 var min = this.min, |
|
680 max = this.max, |
|
681 min2 = bounds.min, |
|
682 max2 = bounds.max, |
|
683 xIntersects = (max2.x >= min.x) && (min2.x <= max.x), |
|
684 yIntersects = (max2.y >= min.y) && (min2.y <= max.y); |
|
685 |
|
686 return xIntersects && yIntersects; |
|
687 }, |
|
688 |
|
689 isValid: function () { |
|
690 return !!(this.min && this.max); |
|
691 } |
|
692 }; |
|
693 |
|
694 L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[]) |
|
695 if (!a || a instanceof L.Bounds) { |
|
696 return a; |
|
697 } |
|
698 return new L.Bounds(a, b); |
|
699 }; |
|
700 |
|
701 |
|
702 /* |
|
703 * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix. |
|
704 */ |
|
705 |
|
706 L.Transformation = function (a, b, c, d) { |
|
707 this._a = a; |
|
708 this._b = b; |
|
709 this._c = c; |
|
710 this._d = d; |
|
711 }; |
|
712 |
|
713 L.Transformation.prototype = { |
|
714 transform: function (point, scale) { // (Point, Number) -> Point |
|
715 return this._transform(point.clone(), scale); |
|
716 }, |
|
717 |
|
718 // destructive transform (faster) |
|
719 _transform: function (point, scale) { |
|
720 scale = scale || 1; |
|
721 point.x = scale * (this._a * point.x + this._b); |
|
722 point.y = scale * (this._c * point.y + this._d); |
|
723 return point; |
|
724 }, |
|
725 |
|
726 untransform: function (point, scale) { |
|
727 scale = scale || 1; |
|
728 return new L.Point( |
|
729 (point.x / scale - this._b) / this._a, |
|
730 (point.y / scale - this._d) / this._c); |
|
731 } |
|
732 }; |
|
733 |
|
734 |
|
735 /* |
|
736 * L.DomUtil contains various utility functions for working with DOM. |
|
737 */ |
|
738 |
|
739 L.DomUtil = { |
|
740 get: function (id) { |
|
741 return (typeof id === 'string' ? document.getElementById(id) : id); |
|
742 }, |
|
743 |
|
744 getStyle: function (el, style) { |
|
745 |
|
746 var value = el.style[style]; |
|
747 |
|
748 if (!value && el.currentStyle) { |
|
749 value = el.currentStyle[style]; |
|
750 } |
|
751 |
|
752 if ((!value || value === 'auto') && document.defaultView) { |
|
753 var css = document.defaultView.getComputedStyle(el, null); |
|
754 value = css ? css[style] : null; |
|
755 } |
|
756 |
|
757 return value === 'auto' ? null : value; |
|
758 }, |
|
759 |
|
760 getViewportOffset: function (element) { |
|
761 |
|
762 var top = 0, |
|
763 left = 0, |
|
764 el = element, |
|
765 docBody = document.body, |
|
766 pos, |
|
767 ie7 = L.Browser.ie7; |
|
768 |
|
769 do { |
|
770 top += el.offsetTop || 0; |
|
771 left += el.offsetLeft || 0; |
|
772 |
|
773 //add borders |
|
774 top += parseInt(L.DomUtil.getStyle(el, "borderTopWidth"), 10) || 0; |
|
775 left += parseInt(L.DomUtil.getStyle(el, "borderLeftWidth"), 10) || 0; |
|
776 |
|
777 pos = L.DomUtil.getStyle(el, 'position'); |
|
778 |
|
779 if (el.offsetParent === docBody && pos === 'absolute') { break; } |
|
780 |
|
781 if (pos === 'fixed') { |
|
782 top += docBody.scrollTop || 0; |
|
783 left += docBody.scrollLeft || 0; |
|
784 break; |
|
785 } |
|
786 el = el.offsetParent; |
|
787 |
|
788 } while (el); |
|
789 |
|
790 el = element; |
|
791 |
|
792 do { |
|
793 if (el === docBody) { break; } |
|
794 |
|
795 top -= el.scrollTop || 0; |
|
796 left -= el.scrollLeft || 0; |
|
797 |
|
798 // webkit (and ie <= 7) handles RTL scrollLeft different to everyone else |
|
799 // https://code.google.com/p/closure-library/source/browse/trunk/closure/goog/style/bidi.js |
|
800 if (!L.DomUtil.documentIsLtr() && (L.Browser.webkit || ie7)) { |
|
801 left += el.scrollWidth - el.clientWidth; |
|
802 |
|
803 // ie7 shows the scrollbar by default and provides clientWidth counting it, so we |
|
804 // need to add it back in if it is visible; scrollbar is on the left as we are RTL |
|
805 if (ie7 && L.DomUtil.getStyle(el, 'overflow-y') !== 'hidden' && |
|
806 L.DomUtil.getStyle(el, 'overflow') !== 'hidden') { |
|
807 left += 17; |
|
808 } |
|
809 } |
|
810 |
|
811 el = el.parentNode; |
|
812 } while (el); |
|
813 |
|
814 return new L.Point(left, top); |
|
815 }, |
|
816 |
|
817 documentIsLtr: function () { |
|
818 if (!L.DomUtil._docIsLtrCached) { |
|
819 L.DomUtil._docIsLtrCached = true; |
|
820 L.DomUtil._docIsLtr = L.DomUtil.getStyle(document.body, 'direction') === "ltr"; |
|
821 } |
|
822 return L.DomUtil._docIsLtr; |
|
823 }, |
|
824 |
|
825 create: function (tagName, className, container) { |
|
826 |
|
827 var el = document.createElement(tagName); |
|
828 el.className = className; |
|
829 |
|
830 if (container) { |
|
831 container.appendChild(el); |
|
832 } |
|
833 |
|
834 return el; |
|
835 }, |
|
836 |
|
837 disableTextSelection: function () { |
|
838 if (document.selection && document.selection.empty) { |
|
839 document.selection.empty(); |
|
840 } |
|
841 if (!this._onselectstart) { |
|
842 this._onselectstart = document.onselectstart || null; |
|
843 document.onselectstart = L.Util.falseFn; |
|
844 } |
|
845 }, |
|
846 |
|
847 enableTextSelection: function () { |
|
848 if (document.onselectstart === L.Util.falseFn) { |
|
849 document.onselectstart = this._onselectstart; |
|
850 this._onselectstart = null; |
|
851 } |
|
852 }, |
|
853 |
|
854 hasClass: function (el, name) { |
|
855 return (el.className.length > 0) && |
|
856 new RegExp("(^|\\s)" + name + "(\\s|$)").test(el.className); |
|
857 }, |
|
858 |
|
859 addClass: function (el, name) { |
|
860 if (!L.DomUtil.hasClass(el, name)) { |
|
861 el.className += (el.className ? ' ' : '') + name; |
|
862 } |
|
863 }, |
|
864 |
|
865 removeClass: function (el, name) { |
|
866 |
|
867 function replaceFn(w, match) { |
|
868 if (match === name) { return ''; } |
|
869 return w; |
|
870 } |
|
871 |
|
872 el.className = el.className |
|
873 .replace(/(\S+)\s*/g, replaceFn) |
|
874 .replace(/(^\s+|\s+$)/, ''); |
|
875 }, |
|
876 |
|
877 setOpacity: function (el, value) { |
|
878 |
|
879 if ('opacity' in el.style) { |
|
880 el.style.opacity = value; |
|
881 |
|
882 } else if ('filter' in el.style) { |
|
883 |
|
884 var filter = false, |
|
885 filterName = 'DXImageTransform.Microsoft.Alpha'; |
|
886 |
|
887 // filters collection throws an error if we try to retrieve a filter that doesn't exist |
|
888 try { filter = el.filters.item(filterName); } catch (e) {} |
|
889 |
|
890 value = Math.round(value * 100); |
|
891 |
|
892 if (filter) { |
|
893 filter.Enabled = (value !== 100); |
|
894 filter.Opacity = value; |
|
895 } else { |
|
896 el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')'; |
|
897 } |
|
898 } |
|
899 }, |
|
900 |
|
901 testProp: function (props) { |
|
902 |
|
903 var style = document.documentElement.style; |
|
904 |
|
905 for (var i = 0; i < props.length; i++) { |
|
906 if (props[i] in style) { |
|
907 return props[i]; |
|
908 } |
|
909 } |
|
910 return false; |
|
911 }, |
|
912 |
|
913 getTranslateString: function (point) { |
|
914 // on WebKit browsers (Chrome/Safari/iOS Safari/Android) using translate3d instead of translate |
|
915 // makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care |
|
916 // (same speed either way), Opera 12 doesn't support translate3d |
|
917 |
|
918 var is3d = L.Browser.webkit3d, |
|
919 open = 'translate' + (is3d ? '3d' : '') + '(', |
|
920 close = (is3d ? ',0' : '') + ')'; |
|
921 |
|
922 return open + point.x + 'px,' + point.y + 'px' + close; |
|
923 }, |
|
924 |
|
925 getScaleString: function (scale, origin) { |
|
926 |
|
927 var preTranslateStr = L.DomUtil.getTranslateString(origin.add(origin.multiplyBy(-1 * scale))), |
|
928 scaleStr = ' scale(' + scale + ') '; |
|
929 |
|
930 return preTranslateStr + scaleStr; |
|
931 }, |
|
932 |
|
933 setPosition: function (el, point, disable3D) { // (HTMLElement, Point[, Boolean]) |
|
934 |
|
935 el._leaflet_pos = point; |
|
936 |
|
937 if (!disable3D && L.Browser.any3d) { |
|
938 el.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(point); |
|
939 |
|
940 // workaround for Android 2/3 stability (https://github.com/CloudMade/Leaflet/issues/69) |
|
941 if (L.Browser.mobileWebkit3d) { |
|
942 el.style.WebkitBackfaceVisibility = 'hidden'; |
|
943 } |
|
944 } else { |
|
945 el.style.left = point.x + 'px'; |
|
946 el.style.top = point.y + 'px'; |
|
947 } |
|
948 }, |
|
949 |
|
950 getPosition: function (el) { |
|
951 // this method is only used for elements previously positioned using setPosition, |
|
952 // so it's safe to cache the position for performance |
|
953 return el._leaflet_pos; |
|
954 } |
|
955 }; |
|
956 |
|
957 |
|
958 // prefix style property names |
|
959 |
|
960 L.DomUtil.TRANSFORM = L.DomUtil.testProp( |
|
961 ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']); |
|
962 |
|
963 // webkitTransition comes first because some browser versions that drop vendor prefix don't do |
|
964 // the same for the transitionend event, in particular the Android 4.1 stock browser |
|
965 |
|
966 L.DomUtil.TRANSITION = L.DomUtil.testProp( |
|
967 ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']); |
|
968 |
|
969 L.DomUtil.TRANSITION_END = |
|
970 L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ? |
|
971 L.DomUtil.TRANSITION + 'End' : 'transitionend'; |
|
972 |
|
973 |
|
974 /* |
|
975 * L.LatLng represents a geographical point with latitude and longitude coordinates. |
|
976 */ |
|
977 |
|
978 L.LatLng = function (rawLat, rawLng) { // (Number, Number) |
|
979 var lat = parseFloat(rawLat), |
|
980 lng = parseFloat(rawLng); |
|
981 |
|
982 if (isNaN(lat) || isNaN(lng)) { |
|
983 throw new Error('Invalid LatLng object: (' + rawLat + ', ' + rawLng + ')'); |
|
984 } |
|
985 |
|
986 this.lat = lat; |
|
987 this.lng = lng; |
|
988 }; |
|
989 |
|
990 L.extend(L.LatLng, { |
|
991 DEG_TO_RAD: Math.PI / 180, |
|
992 RAD_TO_DEG: 180 / Math.PI, |
|
993 MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check |
|
994 }); |
|
995 |
|
996 L.LatLng.prototype = { |
|
997 equals: function (obj) { // (LatLng) -> Boolean |
|
998 if (!obj) { return false; } |
|
999 |
|
1000 obj = L.latLng(obj); |
|
1001 |
|
1002 var margin = Math.max( |
|
1003 Math.abs(this.lat - obj.lat), |
|
1004 Math.abs(this.lng - obj.lng)); |
|
1005 |
|
1006 return margin <= L.LatLng.MAX_MARGIN; |
|
1007 }, |
|
1008 |
|
1009 toString: function (precision) { // (Number) -> String |
|
1010 return 'LatLng(' + |
|
1011 L.Util.formatNum(this.lat, precision) + ', ' + |
|
1012 L.Util.formatNum(this.lng, precision) + ')'; |
|
1013 }, |
|
1014 |
|
1015 // Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula |
|
1016 // TODO move to projection code, LatLng shouldn't know about Earth |
|
1017 distanceTo: function (other) { // (LatLng) -> Number |
|
1018 other = L.latLng(other); |
|
1019 |
|
1020 var R = 6378137, // earth radius in meters |
|
1021 d2r = L.LatLng.DEG_TO_RAD, |
|
1022 dLat = (other.lat - this.lat) * d2r, |
|
1023 dLon = (other.lng - this.lng) * d2r, |
|
1024 lat1 = this.lat * d2r, |
|
1025 lat2 = other.lat * d2r, |
|
1026 sin1 = Math.sin(dLat / 2), |
|
1027 sin2 = Math.sin(dLon / 2); |
|
1028 |
|
1029 var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2); |
|
1030 |
|
1031 return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a)); |
|
1032 }, |
|
1033 |
|
1034 wrap: function (a, b) { // (Number, Number) -> LatLng |
|
1035 var lng = this.lng; |
|
1036 |
|
1037 a = a || -180; |
|
1038 b = b || 180; |
|
1039 |
|
1040 lng = (lng + b) % (b - a) + (lng < a || lng === b ? b : a); |
|
1041 |
|
1042 return new L.LatLng(this.lat, lng); |
|
1043 } |
|
1044 }; |
|
1045 |
|
1046 L.latLng = function (a, b) { // (LatLng) or ([Number, Number]) or (Number, Number) |
|
1047 if (a instanceof L.LatLng) { |
|
1048 return a; |
|
1049 } |
|
1050 if (L.Util.isArray(a)) { |
|
1051 return new L.LatLng(a[0], a[1]); |
|
1052 } |
|
1053 if (isNaN(a)) { |
|
1054 return a; |
|
1055 } |
|
1056 return new L.LatLng(a, b); |
|
1057 }; |
|
1058 |
|
1059 |
|
1060 |
|
1061 /* |
|
1062 * L.LatLngBounds represents a rectangular area on the map in geographical coordinates. |
|
1063 */ |
|
1064 |
|
1065 L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[]) |
|
1066 if (!southWest) { return; } |
|
1067 |
|
1068 var latlngs = northEast ? [southWest, northEast] : southWest; |
|
1069 |
|
1070 for (var i = 0, len = latlngs.length; i < len; i++) { |
|
1071 this.extend(latlngs[i]); |
|
1072 } |
|
1073 }; |
|
1074 |
|
1075 L.LatLngBounds.prototype = { |
|
1076 // extend the bounds to contain the given point or bounds |
|
1077 extend: function (obj) { // (LatLng) or (LatLngBounds) |
|
1078 if (typeof obj[0] === 'number' || typeof obj[0] === 'string' || obj instanceof L.LatLng) { |
|
1079 obj = L.latLng(obj); |
|
1080 } else { |
|
1081 obj = L.latLngBounds(obj); |
|
1082 } |
|
1083 |
|
1084 if (obj instanceof L.LatLng) { |
|
1085 if (!this._southWest && !this._northEast) { |
|
1086 this._southWest = new L.LatLng(obj.lat, obj.lng); |
|
1087 this._northEast = new L.LatLng(obj.lat, obj.lng); |
|
1088 } else { |
|
1089 this._southWest.lat = Math.min(obj.lat, this._southWest.lat); |
|
1090 this._southWest.lng = Math.min(obj.lng, this._southWest.lng); |
|
1091 |
|
1092 this._northEast.lat = Math.max(obj.lat, this._northEast.lat); |
|
1093 this._northEast.lng = Math.max(obj.lng, this._northEast.lng); |
|
1094 } |
|
1095 } else if (obj instanceof L.LatLngBounds) { |
|
1096 this.extend(obj._southWest); |
|
1097 this.extend(obj._northEast); |
|
1098 } |
|
1099 return this; |
|
1100 }, |
|
1101 |
|
1102 // extend the bounds by a percentage |
|
1103 pad: function (bufferRatio) { // (Number) -> LatLngBounds |
|
1104 var sw = this._southWest, |
|
1105 ne = this._northEast, |
|
1106 heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio, |
|
1107 widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio; |
|
1108 |
|
1109 return new L.LatLngBounds( |
|
1110 new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer), |
|
1111 new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer)); |
|
1112 }, |
|
1113 |
|
1114 getCenter: function () { // -> LatLng |
|
1115 return new L.LatLng( |
|
1116 (this._southWest.lat + this._northEast.lat) / 2, |
|
1117 (this._southWest.lng + this._northEast.lng) / 2); |
|
1118 }, |
|
1119 |
|
1120 getSouthWest: function () { |
|
1121 return this._southWest; |
|
1122 }, |
|
1123 |
|
1124 getNorthEast: function () { |
|
1125 return this._northEast; |
|
1126 }, |
|
1127 |
|
1128 getNorthWest: function () { |
|
1129 return new L.LatLng(this._northEast.lat, this._southWest.lng); |
|
1130 }, |
|
1131 |
|
1132 getSouthEast: function () { |
|
1133 return new L.LatLng(this._southWest.lat, this._northEast.lng); |
|
1134 }, |
|
1135 |
|
1136 contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean |
|
1137 if (typeof obj[0] === 'number' || obj instanceof L.LatLng) { |
|
1138 obj = L.latLng(obj); |
|
1139 } else { |
|
1140 obj = L.latLngBounds(obj); |
|
1141 } |
|
1142 |
|
1143 var sw = this._southWest, |
|
1144 ne = this._northEast, |
|
1145 sw2, ne2; |
|
1146 |
|
1147 if (obj instanceof L.LatLngBounds) { |
|
1148 sw2 = obj.getSouthWest(); |
|
1149 ne2 = obj.getNorthEast(); |
|
1150 } else { |
|
1151 sw2 = ne2 = obj; |
|
1152 } |
|
1153 |
|
1154 return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) && |
|
1155 (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng); |
|
1156 }, |
|
1157 |
|
1158 intersects: function (bounds) { // (LatLngBounds) |
|
1159 bounds = L.latLngBounds(bounds); |
|
1160 |
|
1161 var sw = this._southWest, |
|
1162 ne = this._northEast, |
|
1163 sw2 = bounds.getSouthWest(), |
|
1164 ne2 = bounds.getNorthEast(), |
|
1165 |
|
1166 latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat), |
|
1167 lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng); |
|
1168 |
|
1169 return latIntersects && lngIntersects; |
|
1170 }, |
|
1171 |
|
1172 toBBoxString: function () { |
|
1173 var sw = this._southWest, |
|
1174 ne = this._northEast; |
|
1175 |
|
1176 return [sw.lng, sw.lat, ne.lng, ne.lat].join(','); |
|
1177 }, |
|
1178 |
|
1179 equals: function (bounds) { // (LatLngBounds) |
|
1180 if (!bounds) { return false; } |
|
1181 |
|
1182 bounds = L.latLngBounds(bounds); |
|
1183 |
|
1184 return this._southWest.equals(bounds.getSouthWest()) && |
|
1185 this._northEast.equals(bounds.getNorthEast()); |
|
1186 }, |
|
1187 |
|
1188 isValid: function () { |
|
1189 return !!(this._southWest && this._northEast); |
|
1190 } |
|
1191 }; |
|
1192 |
|
1193 //TODO International date line? |
|
1194 |
|
1195 L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng) |
|
1196 if (!a || a instanceof L.LatLngBounds) { |
|
1197 return a; |
|
1198 } |
|
1199 return new L.LatLngBounds(a, b); |
|
1200 }; |
|
1201 |
|
1202 |
|
1203 /* |
|
1204 * L.Projection contains various geographical projections used by CRS classes. |
|
1205 */ |
|
1206 |
|
1207 L.Projection = {}; |
|
1208 |
|
1209 |
|
1210 /* |
|
1211 * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default. |
|
1212 */ |
|
1213 |
|
1214 L.Projection.SphericalMercator = { |
|
1215 MAX_LATITUDE: 85.0511287798, |
|
1216 |
|
1217 project: function (latlng) { // (LatLng) -> Point |
|
1218 var d = L.LatLng.DEG_TO_RAD, |
|
1219 max = this.MAX_LATITUDE, |
|
1220 lat = Math.max(Math.min(max, latlng.lat), -max), |
|
1221 x = latlng.lng * d, |
|
1222 y = lat * d; |
|
1223 |
|
1224 y = Math.log(Math.tan((Math.PI / 4) + (y / 2))); |
|
1225 |
|
1226 return new L.Point(x, y); |
|
1227 }, |
|
1228 |
|
1229 unproject: function (point) { // (Point, Boolean) -> LatLng |
|
1230 var d = L.LatLng.RAD_TO_DEG, |
|
1231 lng = point.x * d, |
|
1232 lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d; |
|
1233 |
|
1234 return new L.LatLng(lat, lng); |
|
1235 } |
|
1236 }; |
|
1237 |
|
1238 |
|
1239 /* |
|
1240 * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple. |
|
1241 */ |
|
1242 |
|
1243 L.Projection.LonLat = { |
|
1244 project: function (latlng) { |
|
1245 return new L.Point(latlng.lng, latlng.lat); |
|
1246 }, |
|
1247 |
|
1248 unproject: function (point) { |
|
1249 return new L.LatLng(point.y, point.x); |
|
1250 } |
|
1251 }; |
|
1252 |
|
1253 |
|
1254 /* |
|
1255 * L.CRS is a base object for all defined CRS (Coordinate Reference Systems) in Leaflet. |
|
1256 */ |
|
1257 |
|
1258 L.CRS = { |
|
1259 latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point |
|
1260 var projectedPoint = this.projection.project(latlng), |
|
1261 scale = this.scale(zoom); |
|
1262 |
|
1263 return this.transformation._transform(projectedPoint, scale); |
|
1264 }, |
|
1265 |
|
1266 pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng |
|
1267 var scale = this.scale(zoom), |
|
1268 untransformedPoint = this.transformation.untransform(point, scale); |
|
1269 |
|
1270 return this.projection.unproject(untransformedPoint); |
|
1271 }, |
|
1272 |
|
1273 project: function (latlng) { |
|
1274 return this.projection.project(latlng); |
|
1275 }, |
|
1276 |
|
1277 scale: function (zoom) { |
|
1278 return 256 * Math.pow(2, zoom); |
|
1279 } |
|
1280 }; |
|
1281 |
|
1282 |
|
1283 /* |
|
1284 * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps. |
|
1285 */ |
|
1286 |
|
1287 L.CRS.Simple = L.extend({}, L.CRS, { |
|
1288 projection: L.Projection.LonLat, |
|
1289 transformation: new L.Transformation(1, 0, -1, 0), |
|
1290 |
|
1291 scale: function (zoom) { |
|
1292 return Math.pow(2, zoom); |
|
1293 } |
|
1294 }); |
|
1295 |
|
1296 |
|
1297 /* |
|
1298 * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping |
|
1299 * and is used by Leaflet by default. |
|
1300 */ |
|
1301 |
|
1302 L.CRS.EPSG3857 = L.extend({}, L.CRS, { |
|
1303 code: 'EPSG:3857', |
|
1304 |
|
1305 projection: L.Projection.SphericalMercator, |
|
1306 transformation: new L.Transformation(0.5 / Math.PI, 0.5, -0.5 / Math.PI, 0.5), |
|
1307 |
|
1308 project: function (latlng) { // (LatLng) -> Point |
|
1309 var projectedPoint = this.projection.project(latlng), |
|
1310 earthRadius = 6378137; |
|
1311 return projectedPoint.multiplyBy(earthRadius); |
|
1312 } |
|
1313 }); |
|
1314 |
|
1315 L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, { |
|
1316 code: 'EPSG:900913' |
|
1317 }); |
|
1318 |
|
1319 |
|
1320 /* |
|
1321 * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists. |
|
1322 */ |
|
1323 |
|
1324 L.CRS.EPSG4326 = L.extend({}, L.CRS, { |
|
1325 code: 'EPSG:4326', |
|
1326 |
|
1327 projection: L.Projection.LonLat, |
|
1328 transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5) |
|
1329 }); |
|
1330 |
|
1331 |
|
1332 /* |
|
1333 * L.Map is the central class of the API - it is used to create a map. |
|
1334 */ |
|
1335 |
|
1336 L.Map = L.Class.extend({ |
|
1337 |
|
1338 includes: L.Mixin.Events, |
|
1339 |
|
1340 options: { |
|
1341 crs: L.CRS.EPSG3857, |
|
1342 |
|
1343 /* |
|
1344 center: LatLng, |
|
1345 zoom: Number, |
|
1346 layers: Array, |
|
1347 */ |
|
1348 |
|
1349 fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23, |
|
1350 trackResize: true, |
|
1351 markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d |
|
1352 }, |
|
1353 |
|
1354 initialize: function (id, options) { // (HTMLElement or String, Object) |
|
1355 options = L.setOptions(this, options); |
|
1356 |
|
1357 this._initContainer(id); |
|
1358 this._initLayout(); |
|
1359 this.callInitHooks(); |
|
1360 this._initEvents(); |
|
1361 |
|
1362 if (options.maxBounds) { |
|
1363 this.setMaxBounds(options.maxBounds); |
|
1364 } |
|
1365 |
|
1366 if (options.center && options.zoom !== undefined) { |
|
1367 this.setView(L.latLng(options.center), options.zoom, true); |
|
1368 } |
|
1369 |
|
1370 this._initLayers(options.layers); |
|
1371 }, |
|
1372 |
|
1373 |
|
1374 // public methods that modify map state |
|
1375 |
|
1376 // replaced by animation-powered implementation in Map.PanAnimation.js |
|
1377 setView: function (center, zoom) { |
|
1378 this._resetView(L.latLng(center), this._limitZoom(zoom)); |
|
1379 return this; |
|
1380 }, |
|
1381 |
|
1382 setZoom: function (zoom) { // (Number) |
|
1383 return this.setView(this.getCenter(), zoom); |
|
1384 }, |
|
1385 |
|
1386 zoomIn: function (delta) { |
|
1387 return this.setZoom(this._zoom + (delta || 1)); |
|
1388 }, |
|
1389 |
|
1390 zoomOut: function (delta) { |
|
1391 return this.setZoom(this._zoom - (delta || 1)); |
|
1392 }, |
|
1393 |
|
1394 fitBounds: function (bounds) { // (LatLngBounds) |
|
1395 var zoom = this.getBoundsZoom(bounds); |
|
1396 return this.setView(L.latLngBounds(bounds).getCenter(), zoom); |
|
1397 }, |
|
1398 |
|
1399 fitWorld: function () { |
|
1400 var sw = new L.LatLng(-60, -170), |
|
1401 ne = new L.LatLng(85, 179); |
|
1402 |
|
1403 return this.fitBounds(new L.LatLngBounds(sw, ne)); |
|
1404 }, |
|
1405 |
|
1406 panTo: function (center) { // (LatLng) |
|
1407 return this.setView(center, this._zoom); |
|
1408 }, |
|
1409 |
|
1410 panBy: function (offset) { // (Point) |
|
1411 // replaced with animated panBy in Map.Animation.js |
|
1412 this.fire('movestart'); |
|
1413 |
|
1414 this._rawPanBy(L.point(offset)); |
|
1415 |
|
1416 this.fire('move'); |
|
1417 return this.fire('moveend'); |
|
1418 }, |
|
1419 |
|
1420 setMaxBounds: function (bounds) { |
|
1421 bounds = L.latLngBounds(bounds); |
|
1422 |
|
1423 this.options.maxBounds = bounds; |
|
1424 |
|
1425 if (!bounds) { |
|
1426 this._boundsMinZoom = null; |
|
1427 return this; |
|
1428 } |
|
1429 |
|
1430 var minZoom = this.getBoundsZoom(bounds, true); |
|
1431 |
|
1432 this._boundsMinZoom = minZoom; |
|
1433 |
|
1434 if (this._loaded) { |
|
1435 if (this._zoom < minZoom) { |
|
1436 this.setView(bounds.getCenter(), minZoom); |
|
1437 } else { |
|
1438 this.panInsideBounds(bounds); |
|
1439 } |
|
1440 } |
|
1441 |
|
1442 return this; |
|
1443 }, |
|
1444 |
|
1445 panInsideBounds: function (bounds) { |
|
1446 bounds = L.latLngBounds(bounds); |
|
1447 |
|
1448 var viewBounds = this.getBounds(), |
|
1449 viewSw = this.project(viewBounds.getSouthWest()), |
|
1450 viewNe = this.project(viewBounds.getNorthEast()), |
|
1451 sw = this.project(bounds.getSouthWest()), |
|
1452 ne = this.project(bounds.getNorthEast()), |
|
1453 dx = 0, |
|
1454 dy = 0; |
|
1455 |
|
1456 if (viewNe.y < ne.y) { // north |
|
1457 dy = ne.y - viewNe.y; |
|
1458 } |
|
1459 if (viewNe.x > ne.x) { // east |
|
1460 dx = ne.x - viewNe.x; |
|
1461 } |
|
1462 if (viewSw.y > sw.y) { // south |
|
1463 dy = sw.y - viewSw.y; |
|
1464 } |
|
1465 if (viewSw.x < sw.x) { // west |
|
1466 dx = sw.x - viewSw.x; |
|
1467 } |
|
1468 |
|
1469 return this.panBy(new L.Point(dx, dy, true)); |
|
1470 }, |
|
1471 |
|
1472 addLayer: function (layer) { |
|
1473 // TODO method is too big, refactor |
|
1474 |
|
1475 var id = L.stamp(layer); |
|
1476 |
|
1477 if (this._layers[id]) { return this; } |
|
1478 |
|
1479 this._layers[id] = layer; |
|
1480 |
|
1481 // TODO getMaxZoom, getMinZoom in ILayer (instead of options) |
|
1482 if (layer.options && (!isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom))) { |
|
1483 this._zoomBoundLayers[id] = layer; |
|
1484 this._updateZoomLevels(); |
|
1485 } |
|
1486 |
|
1487 // TODO looks ugly, refactor!!! |
|
1488 if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) { |
|
1489 this._tileLayersNum++; |
|
1490 this._tileLayersToLoad++; |
|
1491 layer.on('load', this._onTileLayerLoad, this); |
|
1492 } |
|
1493 |
|
1494 this.whenReady(function () { |
|
1495 layer.onAdd(this); |
|
1496 this.fire('layeradd', {layer: layer}); |
|
1497 }, this); |
|
1498 |
|
1499 return this; |
|
1500 }, |
|
1501 |
|
1502 removeLayer: function (layer) { |
|
1503 var id = L.stamp(layer); |
|
1504 |
|
1505 if (!this._layers[id]) { return; } |
|
1506 |
|
1507 layer.onRemove(this); |
|
1508 |
|
1509 delete this._layers[id]; |
|
1510 if (this._zoomBoundLayers[id]) { |
|
1511 delete this._zoomBoundLayers[id]; |
|
1512 this._updateZoomLevels(); |
|
1513 } |
|
1514 |
|
1515 // TODO looks ugly, refactor |
|
1516 if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) { |
|
1517 this._tileLayersNum--; |
|
1518 this._tileLayersToLoad--; |
|
1519 layer.off('load', this._onTileLayerLoad, this); |
|
1520 } |
|
1521 |
|
1522 return this.fire('layerremove', {layer: layer}); |
|
1523 }, |
|
1524 |
|
1525 hasLayer: function (layer) { |
|
1526 var id = L.stamp(layer); |
|
1527 return this._layers.hasOwnProperty(id); |
|
1528 }, |
|
1529 |
|
1530 invalidateSize: function (animate) { |
|
1531 var oldSize = this.getSize(); |
|
1532 |
|
1533 this._sizeChanged = true; |
|
1534 |
|
1535 if (this.options.maxBounds) { |
|
1536 this.setMaxBounds(this.options.maxBounds); |
|
1537 } |
|
1538 |
|
1539 if (!this._loaded) { return this; } |
|
1540 |
|
1541 var offset = oldSize._subtract(this.getSize())._divideBy(2)._round(); |
|
1542 |
|
1543 if (animate === true) { |
|
1544 this.panBy(offset); |
|
1545 } else { |
|
1546 this._rawPanBy(offset); |
|
1547 |
|
1548 this.fire('move'); |
|
1549 |
|
1550 clearTimeout(this._sizeTimer); |
|
1551 this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200); |
|
1552 } |
|
1553 return this; |
|
1554 }, |
|
1555 |
|
1556 // TODO handler.addTo |
|
1557 addHandler: function (name, HandlerClass) { |
|
1558 if (!HandlerClass) { return; } |
|
1559 |
|
1560 this[name] = new HandlerClass(this); |
|
1561 |
|
1562 if (this.options[name]) { |
|
1563 this[name].enable(); |
|
1564 } |
|
1565 |
|
1566 return this; |
|
1567 }, |
|
1568 |
|
1569 |
|
1570 // public methods for getting map state |
|
1571 |
|
1572 getCenter: function () { // (Boolean) -> LatLng |
|
1573 return this.layerPointToLatLng(this._getCenterLayerPoint()); |
|
1574 }, |
|
1575 |
|
1576 getZoom: function () { |
|
1577 return this._zoom; |
|
1578 }, |
|
1579 |
|
1580 getBounds: function () { |
|
1581 var bounds = this.getPixelBounds(), |
|
1582 sw = this.unproject(bounds.getBottomLeft()), |
|
1583 ne = this.unproject(bounds.getTopRight()); |
|
1584 |
|
1585 return new L.LatLngBounds(sw, ne); |
|
1586 }, |
|
1587 |
|
1588 getMinZoom: function () { |
|
1589 var z1 = this.options.minZoom || 0, |
|
1590 z2 = this._layersMinZoom || 0, |
|
1591 z3 = this._boundsMinZoom || 0; |
|
1592 |
|
1593 return Math.max(z1, z2, z3); |
|
1594 }, |
|
1595 |
|
1596 getMaxZoom: function () { |
|
1597 var z1 = this.options.maxZoom === undefined ? Infinity : this.options.maxZoom, |
|
1598 z2 = this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom; |
|
1599 |
|
1600 return Math.min(z1, z2); |
|
1601 }, |
|
1602 |
|
1603 getBoundsZoom: function (bounds, inside) { // (LatLngBounds, Boolean) -> Number |
|
1604 bounds = L.latLngBounds(bounds); |
|
1605 |
|
1606 var size = this.getSize(), |
|
1607 zoom = this.options.minZoom || 0, |
|
1608 maxZoom = this.getMaxZoom(), |
|
1609 ne = bounds.getNorthEast(), |
|
1610 sw = bounds.getSouthWest(), |
|
1611 boundsSize, |
|
1612 nePoint, |
|
1613 swPoint, |
|
1614 zoomNotFound = true; |
|
1615 |
|
1616 if (inside) { |
|
1617 zoom--; |
|
1618 } |
|
1619 |
|
1620 do { |
|
1621 zoom++; |
|
1622 nePoint = this.project(ne, zoom); |
|
1623 swPoint = this.project(sw, zoom); |
|
1624 |
|
1625 boundsSize = new L.Point( |
|
1626 Math.abs(nePoint.x - swPoint.x), |
|
1627 Math.abs(swPoint.y - nePoint.y)); |
|
1628 |
|
1629 if (!inside) { |
|
1630 zoomNotFound = boundsSize.x <= size.x && boundsSize.y <= size.y; |
|
1631 } else { |
|
1632 zoomNotFound = boundsSize.x < size.x || boundsSize.y < size.y; |
|
1633 } |
|
1634 } while (zoomNotFound && zoom <= maxZoom); |
|
1635 |
|
1636 if (zoomNotFound && inside) { |
|
1637 return null; |
|
1638 } |
|
1639 |
|
1640 return inside ? zoom : zoom - 1; |
|
1641 }, |
|
1642 |
|
1643 getSize: function () { |
|
1644 if (!this._size || this._sizeChanged) { |
|
1645 this._size = new L.Point( |
|
1646 this._container.clientWidth, |
|
1647 this._container.clientHeight); |
|
1648 |
|
1649 this._sizeChanged = false; |
|
1650 } |
|
1651 return this._size.clone(); |
|
1652 }, |
|
1653 |
|
1654 getPixelBounds: function () { |
|
1655 var topLeftPoint = this._getTopLeftPoint(); |
|
1656 return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize())); |
|
1657 }, |
|
1658 |
|
1659 getPixelOrigin: function () { |
|
1660 return this._initialTopLeftPoint; |
|
1661 }, |
|
1662 |
|
1663 getPanes: function () { |
|
1664 return this._panes; |
|
1665 }, |
|
1666 |
|
1667 getContainer: function () { |
|
1668 return this._container; |
|
1669 }, |
|
1670 |
|
1671 |
|
1672 // TODO replace with universal implementation after refactoring projections |
|
1673 |
|
1674 getZoomScale: function (toZoom) { |
|
1675 var crs = this.options.crs; |
|
1676 return crs.scale(toZoom) / crs.scale(this._zoom); |
|
1677 }, |
|
1678 |
|
1679 getScaleZoom: function (scale) { |
|
1680 return this._zoom + (Math.log(scale) / Math.LN2); |
|
1681 }, |
|
1682 |
|
1683 |
|
1684 // conversion methods |
|
1685 |
|
1686 project: function (latlng, zoom) { // (LatLng[, Number]) -> Point |
|
1687 zoom = zoom === undefined ? this._zoom : zoom; |
|
1688 return this.options.crs.latLngToPoint(L.latLng(latlng), zoom); |
|
1689 }, |
|
1690 |
|
1691 unproject: function (point, zoom) { // (Point[, Number]) -> LatLng |
|
1692 zoom = zoom === undefined ? this._zoom : zoom; |
|
1693 return this.options.crs.pointToLatLng(L.point(point), zoom); |
|
1694 }, |
|
1695 |
|
1696 layerPointToLatLng: function (point) { // (Point) |
|
1697 var projectedPoint = L.point(point).add(this._initialTopLeftPoint); |
|
1698 return this.unproject(projectedPoint); |
|
1699 }, |
|
1700 |
|
1701 latLngToLayerPoint: function (latlng) { // (LatLng) |
|
1702 var projectedPoint = this.project(L.latLng(latlng))._round(); |
|
1703 return projectedPoint._subtract(this._initialTopLeftPoint); |
|
1704 }, |
|
1705 |
|
1706 containerPointToLayerPoint: function (point) { // (Point) |
|
1707 return L.point(point).subtract(this._getMapPanePos()); |
|
1708 }, |
|
1709 |
|
1710 layerPointToContainerPoint: function (point) { // (Point) |
|
1711 return L.point(point).add(this._getMapPanePos()); |
|
1712 }, |
|
1713 |
|
1714 containerPointToLatLng: function (point) { |
|
1715 var layerPoint = this.containerPointToLayerPoint(L.point(point)); |
|
1716 return this.layerPointToLatLng(layerPoint); |
|
1717 }, |
|
1718 |
|
1719 latLngToContainerPoint: function (latlng) { |
|
1720 return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng))); |
|
1721 }, |
|
1722 |
|
1723 mouseEventToContainerPoint: function (e) { // (MouseEvent) |
|
1724 return L.DomEvent.getMousePosition(e, this._container); |
|
1725 }, |
|
1726 |
|
1727 mouseEventToLayerPoint: function (e) { // (MouseEvent) |
|
1728 return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e)); |
|
1729 }, |
|
1730 |
|
1731 mouseEventToLatLng: function (e) { // (MouseEvent) |
|
1732 return this.layerPointToLatLng(this.mouseEventToLayerPoint(e)); |
|
1733 }, |
|
1734 |
|
1735 |
|
1736 // map initialization methods |
|
1737 |
|
1738 _initContainer: function (id) { |
|
1739 var container = this._container = L.DomUtil.get(id); |
|
1740 |
|
1741 if (container._leaflet) { |
|
1742 throw new Error("Map container is already initialized."); |
|
1743 } |
|
1744 |
|
1745 container._leaflet = true; |
|
1746 }, |
|
1747 |
|
1748 _initLayout: function () { |
|
1749 var container = this._container; |
|
1750 |
|
1751 L.DomUtil.addClass(container, 'leaflet-container'); |
|
1752 |
|
1753 if (L.Browser.touch) { |
|
1754 L.DomUtil.addClass(container, 'leaflet-touch'); |
|
1755 } |
|
1756 |
|
1757 if (this.options.fadeAnimation) { |
|
1758 L.DomUtil.addClass(container, 'leaflet-fade-anim'); |
|
1759 } |
|
1760 |
|
1761 var position = L.DomUtil.getStyle(container, 'position'); |
|
1762 |
|
1763 if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') { |
|
1764 container.style.position = 'relative'; |
|
1765 } |
|
1766 |
|
1767 this._initPanes(); |
|
1768 |
|
1769 if (this._initControlPos) { |
|
1770 this._initControlPos(); |
|
1771 } |
|
1772 }, |
|
1773 |
|
1774 _initPanes: function () { |
|
1775 var panes = this._panes = {}; |
|
1776 |
|
1777 this._mapPane = panes.mapPane = this._createPane('leaflet-map-pane', this._container); |
|
1778 |
|
1779 this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane); |
|
1780 panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane); |
|
1781 panes.shadowPane = this._createPane('leaflet-shadow-pane'); |
|
1782 panes.overlayPane = this._createPane('leaflet-overlay-pane'); |
|
1783 panes.markerPane = this._createPane('leaflet-marker-pane'); |
|
1784 panes.popupPane = this._createPane('leaflet-popup-pane'); |
|
1785 |
|
1786 var zoomHide = ' leaflet-zoom-hide'; |
|
1787 |
|
1788 if (!this.options.markerZoomAnimation) { |
|
1789 L.DomUtil.addClass(panes.markerPane, zoomHide); |
|
1790 L.DomUtil.addClass(panes.shadowPane, zoomHide); |
|
1791 L.DomUtil.addClass(panes.popupPane, zoomHide); |
|
1792 } |
|
1793 }, |
|
1794 |
|
1795 _createPane: function (className, container) { |
|
1796 return L.DomUtil.create('div', className, container || this._panes.objectsPane); |
|
1797 }, |
|
1798 |
|
1799 _initLayers: function (layers) { |
|
1800 layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : []; |
|
1801 |
|
1802 this._layers = {}; |
|
1803 this._zoomBoundLayers = {}; |
|
1804 this._tileLayersNum = 0; |
|
1805 |
|
1806 var i, len; |
|
1807 |
|
1808 for (i = 0, len = layers.length; i < len; i++) { |
|
1809 this.addLayer(layers[i]); |
|
1810 } |
|
1811 }, |
|
1812 |
|
1813 |
|
1814 // private methods that modify map state |
|
1815 |
|
1816 _resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) { |
|
1817 |
|
1818 var zoomChanged = (this._zoom !== zoom); |
|
1819 |
|
1820 if (!afterZoomAnim) { |
|
1821 this.fire('movestart'); |
|
1822 |
|
1823 if (zoomChanged) { |
|
1824 this.fire('zoomstart'); |
|
1825 } |
|
1826 } |
|
1827 |
|
1828 this._zoom = zoom; |
|
1829 |
|
1830 this._initialTopLeftPoint = this._getNewTopLeftPoint(center); |
|
1831 |
|
1832 if (!preserveMapOffset) { |
|
1833 L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0)); |
|
1834 } else { |
|
1835 this._initialTopLeftPoint._add(this._getMapPanePos()); |
|
1836 } |
|
1837 |
|
1838 this._tileLayersToLoad = this._tileLayersNum; |
|
1839 |
|
1840 var loading = !this._loaded; |
|
1841 this._loaded = true; |
|
1842 |
|
1843 this.fire('viewreset', {hard: !preserveMapOffset}); |
|
1844 |
|
1845 this.fire('move'); |
|
1846 |
|
1847 if (zoomChanged || afterZoomAnim) { |
|
1848 this.fire('zoomend'); |
|
1849 } |
|
1850 |
|
1851 this.fire('moveend', {hard: !preserveMapOffset}); |
|
1852 |
|
1853 if (loading) { |
|
1854 this.fire('load'); |
|
1855 } |
|
1856 }, |
|
1857 |
|
1858 _rawPanBy: function (offset) { |
|
1859 L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset)); |
|
1860 }, |
|
1861 |
|
1862 _updateZoomLevels: function () { |
|
1863 var i, |
|
1864 minZoom = Infinity, |
|
1865 maxZoom = -Infinity; |
|
1866 |
|
1867 for (i in this._zoomBoundLayers) { |
|
1868 if (this._zoomBoundLayers.hasOwnProperty(i)) { |
|
1869 var layer = this._zoomBoundLayers[i]; |
|
1870 if (!isNaN(layer.options.minZoom)) { |
|
1871 minZoom = Math.min(minZoom, layer.options.minZoom); |
|
1872 } |
|
1873 if (!isNaN(layer.options.maxZoom)) { |
|
1874 maxZoom = Math.max(maxZoom, layer.options.maxZoom); |
|
1875 } |
|
1876 } |
|
1877 } |
|
1878 |
|
1879 if (i === undefined) { // we have no tilelayers |
|
1880 this._layersMaxZoom = this._layersMinZoom = undefined; |
|
1881 } else { |
|
1882 this._layersMaxZoom = maxZoom; |
|
1883 this._layersMinZoom = minZoom; |
|
1884 } |
|
1885 }, |
|
1886 |
|
1887 // map events |
|
1888 |
|
1889 _initEvents: function () { |
|
1890 if (!L.DomEvent) { return; } |
|
1891 |
|
1892 L.DomEvent.on(this._container, 'click', this._onMouseClick, this); |
|
1893 |
|
1894 var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter', |
|
1895 'mouseleave', 'mousemove', 'contextmenu'], |
|
1896 i, len; |
|
1897 |
|
1898 for (i = 0, len = events.length; i < len; i++) { |
|
1899 L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this); |
|
1900 } |
|
1901 |
|
1902 if (this.options.trackResize) { |
|
1903 L.DomEvent.on(window, 'resize', this._onResize, this); |
|
1904 } |
|
1905 }, |
|
1906 |
|
1907 _onResize: function () { |
|
1908 L.Util.cancelAnimFrame(this._resizeRequest); |
|
1909 this._resizeRequest = L.Util.requestAnimFrame( |
|
1910 this.invalidateSize, this, false, this._container); |
|
1911 }, |
|
1912 |
|
1913 _onMouseClick: function (e) { |
|
1914 if (!this._loaded || (this.dragging && this.dragging.moved())) { return; } |
|
1915 |
|
1916 this.fire('preclick'); |
|
1917 this._fireMouseEvent(e); |
|
1918 }, |
|
1919 |
|
1920 _fireMouseEvent: function (e) { |
|
1921 if (!this._loaded) { return; } |
|
1922 |
|
1923 var type = e.type; |
|
1924 |
|
1925 type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type)); |
|
1926 |
|
1927 if (!this.hasEventListeners(type)) { return; } |
|
1928 |
|
1929 if (type === 'contextmenu') { |
|
1930 L.DomEvent.preventDefault(e); |
|
1931 } |
|
1932 |
|
1933 var containerPoint = this.mouseEventToContainerPoint(e), |
|
1934 layerPoint = this.containerPointToLayerPoint(containerPoint), |
|
1935 latlng = this.layerPointToLatLng(layerPoint); |
|
1936 |
|
1937 this.fire(type, { |
|
1938 latlng: latlng, |
|
1939 layerPoint: layerPoint, |
|
1940 containerPoint: containerPoint, |
|
1941 originalEvent: e |
|
1942 }); |
|
1943 }, |
|
1944 |
|
1945 _onTileLayerLoad: function () { |
|
1946 // TODO super-ugly, refactor!!! |
|
1947 // clear scaled tiles after all new tiles are loaded (for performance) |
|
1948 this._tileLayersToLoad--; |
|
1949 if (this._tileLayersNum && !this._tileLayersToLoad && this._tileBg) { |
|
1950 clearTimeout(this._clearTileBgTimer); |
|
1951 this._clearTileBgTimer = setTimeout(L.bind(this._clearTileBg, this), 500); |
|
1952 } |
|
1953 }, |
|
1954 |
|
1955 whenReady: function (callback, context) { |
|
1956 if (this._loaded) { |
|
1957 callback.call(context || this, this); |
|
1958 } else { |
|
1959 this.on('load', callback, context); |
|
1960 } |
|
1961 return this; |
|
1962 }, |
|
1963 |
|
1964 |
|
1965 // private methods for getting map state |
|
1966 |
|
1967 _getMapPanePos: function () { |
|
1968 return L.DomUtil.getPosition(this._mapPane); |
|
1969 }, |
|
1970 |
|
1971 _getTopLeftPoint: function () { |
|
1972 if (!this._loaded) { |
|
1973 throw new Error('Set map center and zoom first.'); |
|
1974 } |
|
1975 |
|
1976 return this._initialTopLeftPoint.subtract(this._getMapPanePos()); |
|
1977 }, |
|
1978 |
|
1979 _getNewTopLeftPoint: function (center, zoom) { |
|
1980 var viewHalf = this.getSize()._divideBy(2); |
|
1981 // TODO round on display, not calculation to increase precision? |
|
1982 return this.project(center, zoom)._subtract(viewHalf)._round(); |
|
1983 }, |
|
1984 |
|
1985 _latLngToNewLayerPoint: function (latlng, newZoom, newCenter) { |
|
1986 var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos()); |
|
1987 return this.project(latlng, newZoom)._subtract(topLeft); |
|
1988 }, |
|
1989 |
|
1990 _getCenterLayerPoint: function () { |
|
1991 return this.containerPointToLayerPoint(this.getSize()._divideBy(2)); |
|
1992 }, |
|
1993 |
|
1994 _getCenterOffset: function (center) { |
|
1995 return this.latLngToLayerPoint(center).subtract(this._getCenterLayerPoint()); |
|
1996 }, |
|
1997 |
|
1998 _limitZoom: function (zoom) { |
|
1999 var min = this.getMinZoom(), |
|
2000 max = this.getMaxZoom(); |
|
2001 |
|
2002 return Math.max(min, Math.min(max, zoom)); |
|
2003 } |
|
2004 }); |
|
2005 |
|
2006 L.map = function (id, options) { |
|
2007 return new L.Map(id, options); |
|
2008 }; |
|
2009 |
|
2010 |
|
2011 /* |
|
2012 * Mercator projection that takes into account that the Earth is not a perfect sphere. |
|
2013 * Less popular than spherical mercator; used by projections like EPSG:3395. |
|
2014 */ |
|
2015 |
|
2016 L.Projection.Mercator = { |
|
2017 MAX_LATITUDE: 85.0840591556, |
|
2018 |
|
2019 R_MINOR: 6356752.3142, |
|
2020 R_MAJOR: 6378137, |
|
2021 |
|
2022 project: function (latlng) { // (LatLng) -> Point |
|
2023 var d = L.LatLng.DEG_TO_RAD, |
|
2024 max = this.MAX_LATITUDE, |
|
2025 lat = Math.max(Math.min(max, latlng.lat), -max), |
|
2026 r = this.R_MAJOR, |
|
2027 r2 = this.R_MINOR, |
|
2028 x = latlng.lng * d * r, |
|
2029 y = lat * d, |
|
2030 tmp = r2 / r, |
|
2031 eccent = Math.sqrt(1.0 - tmp * tmp), |
|
2032 con = eccent * Math.sin(y); |
|
2033 |
|
2034 con = Math.pow((1 - con) / (1 + con), eccent * 0.5); |
|
2035 |
|
2036 var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con; |
|
2037 y = -r2 * Math.log(ts); |
|
2038 |
|
2039 return new L.Point(x, y); |
|
2040 }, |
|
2041 |
|
2042 unproject: function (point) { // (Point, Boolean) -> LatLng |
|
2043 var d = L.LatLng.RAD_TO_DEG, |
|
2044 r = this.R_MAJOR, |
|
2045 r2 = this.R_MINOR, |
|
2046 lng = point.x * d / r, |
|
2047 tmp = r2 / r, |
|
2048 eccent = Math.sqrt(1 - (tmp * tmp)), |
|
2049 ts = Math.exp(- point.y / r2), |
|
2050 phi = (Math.PI / 2) - 2 * Math.atan(ts), |
|
2051 numIter = 15, |
|
2052 tol = 1e-7, |
|
2053 i = numIter, |
|
2054 dphi = 0.1, |
|
2055 con; |
|
2056 |
|
2057 while ((Math.abs(dphi) > tol) && (--i > 0)) { |
|
2058 con = eccent * Math.sin(phi); |
|
2059 dphi = (Math.PI / 2) - 2 * Math.atan(ts * |
|
2060 Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi; |
|
2061 phi += dphi; |
|
2062 } |
|
2063 |
|
2064 return new L.LatLng(phi * d, lng); |
|
2065 } |
|
2066 }; |
|
2067 |
|
2068 |
|
2069 |
|
2070 L.CRS.EPSG3395 = L.extend({}, L.CRS, { |
|
2071 code: 'EPSG:3395', |
|
2072 |
|
2073 projection: L.Projection.Mercator, |
|
2074 |
|
2075 transformation: (function () { |
|
2076 var m = L.Projection.Mercator, |
|
2077 r = m.R_MAJOR, |
|
2078 r2 = m.R_MINOR; |
|
2079 |
|
2080 return new L.Transformation(0.5 / (Math.PI * r), 0.5, -0.5 / (Math.PI * r2), 0.5); |
|
2081 }()) |
|
2082 }); |
|
2083 |
|
2084 |
|
2085 /* |
|
2086 * L.TileLayer is used for standard xyz-numbered tile layers. |
|
2087 */ |
|
2088 |
|
2089 L.TileLayer = L.Class.extend({ |
|
2090 includes: L.Mixin.Events, |
|
2091 |
|
2092 options: { |
|
2093 minZoom: 0, |
|
2094 maxZoom: 18, |
|
2095 tileSize: 256, |
|
2096 subdomains: 'abc', |
|
2097 errorTileUrl: '', |
|
2098 attribution: '', |
|
2099 zoomOffset: 0, |
|
2100 opacity: 1, |
|
2101 /* (undefined works too) |
|
2102 zIndex: null, |
|
2103 tms: false, |
|
2104 continuousWorld: false, |
|
2105 noWrap: false, |
|
2106 zoomReverse: false, |
|
2107 detectRetina: false, |
|
2108 reuseTiles: false, |
|
2109 */ |
|
2110 unloadInvisibleTiles: L.Browser.mobile, |
|
2111 updateWhenIdle: L.Browser.mobile |
|
2112 }, |
|
2113 |
|
2114 initialize: function (url, options) { |
|
2115 options = L.setOptions(this, options); |
|
2116 |
|
2117 // detecting retina displays, adjusting tileSize and zoom levels |
|
2118 if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) { |
|
2119 |
|
2120 options.tileSize = Math.floor(options.tileSize / 2); |
|
2121 options.zoomOffset++; |
|
2122 |
|
2123 if (options.minZoom > 0) { |
|
2124 options.minZoom--; |
|
2125 } |
|
2126 this.options.maxZoom--; |
|
2127 } |
|
2128 |
|
2129 this._url = url; |
|
2130 |
|
2131 var subdomains = this.options.subdomains; |
|
2132 |
|
2133 if (typeof subdomains === 'string') { |
|
2134 this.options.subdomains = subdomains.split(''); |
|
2135 } |
|
2136 }, |
|
2137 |
|
2138 onAdd: function (map) { |
|
2139 this._map = map; |
|
2140 |
|
2141 // create a container div for tiles |
|
2142 this._initContainer(); |
|
2143 |
|
2144 // create an image to clone for tiles |
|
2145 this._createTileProto(); |
|
2146 |
|
2147 // set up events |
|
2148 map.on({ |
|
2149 'viewreset': this._resetCallback, |
|
2150 'moveend': this._update |
|
2151 }, this); |
|
2152 |
|
2153 if (!this.options.updateWhenIdle) { |
|
2154 this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this); |
|
2155 map.on('move', this._limitedUpdate, this); |
|
2156 } |
|
2157 |
|
2158 this._reset(); |
|
2159 this._update(); |
|
2160 }, |
|
2161 |
|
2162 addTo: function (map) { |
|
2163 map.addLayer(this); |
|
2164 return this; |
|
2165 }, |
|
2166 |
|
2167 onRemove: function (map) { |
|
2168 this._container.parentNode.removeChild(this._container); |
|
2169 |
|
2170 map.off({ |
|
2171 'viewreset': this._resetCallback, |
|
2172 'moveend': this._update |
|
2173 }, this); |
|
2174 |
|
2175 if (!this.options.updateWhenIdle) { |
|
2176 map.off('move', this._limitedUpdate, this); |
|
2177 } |
|
2178 |
|
2179 this._container = null; |
|
2180 this._map = null; |
|
2181 }, |
|
2182 |
|
2183 bringToFront: function () { |
|
2184 var pane = this._map._panes.tilePane; |
|
2185 |
|
2186 if (this._container) { |
|
2187 pane.appendChild(this._container); |
|
2188 this._setAutoZIndex(pane, Math.max); |
|
2189 } |
|
2190 |
|
2191 return this; |
|
2192 }, |
|
2193 |
|
2194 bringToBack: function () { |
|
2195 var pane = this._map._panes.tilePane; |
|
2196 |
|
2197 if (this._container) { |
|
2198 pane.insertBefore(this._container, pane.firstChild); |
|
2199 this._setAutoZIndex(pane, Math.min); |
|
2200 } |
|
2201 |
|
2202 return this; |
|
2203 }, |
|
2204 |
|
2205 getAttribution: function () { |
|
2206 return this.options.attribution; |
|
2207 }, |
|
2208 |
|
2209 setOpacity: function (opacity) { |
|
2210 this.options.opacity = opacity; |
|
2211 |
|
2212 if (this._map) { |
|
2213 this._updateOpacity(); |
|
2214 } |
|
2215 |
|
2216 return this; |
|
2217 }, |
|
2218 |
|
2219 setZIndex: function (zIndex) { |
|
2220 this.options.zIndex = zIndex; |
|
2221 this._updateZIndex(); |
|
2222 |
|
2223 return this; |
|
2224 }, |
|
2225 |
|
2226 setUrl: function (url, noRedraw) { |
|
2227 this._url = url; |
|
2228 |
|
2229 if (!noRedraw) { |
|
2230 this.redraw(); |
|
2231 } |
|
2232 |
|
2233 return this; |
|
2234 }, |
|
2235 |
|
2236 redraw: function () { |
|
2237 if (this._map) { |
|
2238 this._map._panes.tilePane.empty = false; |
|
2239 this._reset(true); |
|
2240 this._update(); |
|
2241 } |
|
2242 return this; |
|
2243 }, |
|
2244 |
|
2245 _updateZIndex: function () { |
|
2246 if (this._container && this.options.zIndex !== undefined) { |
|
2247 this._container.style.zIndex = this.options.zIndex; |
|
2248 } |
|
2249 }, |
|
2250 |
|
2251 _setAutoZIndex: function (pane, compare) { |
|
2252 |
|
2253 var layers = pane.children, |
|
2254 edgeZIndex = -compare(Infinity, -Infinity), // -Infinity for max, Infinity for min |
|
2255 zIndex, i, len; |
|
2256 |
|
2257 for (i = 0, len = layers.length; i < len; i++) { |
|
2258 |
|
2259 if (layers[i] !== this._container) { |
|
2260 zIndex = parseInt(layers[i].style.zIndex, 10); |
|
2261 |
|
2262 if (!isNaN(zIndex)) { |
|
2263 edgeZIndex = compare(edgeZIndex, zIndex); |
|
2264 } |
|
2265 } |
|
2266 } |
|
2267 |
|
2268 this.options.zIndex = this._container.style.zIndex = |
|
2269 (isFinite(edgeZIndex) ? edgeZIndex : 0) + compare(1, -1); |
|
2270 }, |
|
2271 |
|
2272 _updateOpacity: function () { |
|
2273 L.DomUtil.setOpacity(this._container, this.options.opacity); |
|
2274 |
|
2275 // stupid webkit hack to force redrawing of tiles |
|
2276 var i, |
|
2277 tiles = this._tiles; |
|
2278 |
|
2279 if (L.Browser.webkit) { |
|
2280 for (i in tiles) { |
|
2281 if (tiles.hasOwnProperty(i)) { |
|
2282 tiles[i].style.webkitTransform += ' translate(0,0)'; |
|
2283 } |
|
2284 } |
|
2285 } |
|
2286 }, |
|
2287 |
|
2288 _initContainer: function () { |
|
2289 var tilePane = this._map._panes.tilePane; |
|
2290 |
|
2291 if (!this._container || tilePane.empty) { |
|
2292 this._container = L.DomUtil.create('div', 'leaflet-layer'); |
|
2293 |
|
2294 this._updateZIndex(); |
|
2295 |
|
2296 tilePane.appendChild(this._container); |
|
2297 |
|
2298 if (this.options.opacity < 1) { |
|
2299 this._updateOpacity(); |
|
2300 } |
|
2301 } |
|
2302 }, |
|
2303 |
|
2304 _resetCallback: function (e) { |
|
2305 this._reset(e.hard); |
|
2306 }, |
|
2307 |
|
2308 _reset: function (clearOldContainer) { |
|
2309 var tiles = this._tiles; |
|
2310 |
|
2311 for (var key in tiles) { |
|
2312 if (tiles.hasOwnProperty(key)) { |
|
2313 this.fire('tileunload', {tile: tiles[key]}); |
|
2314 } |
|
2315 } |
|
2316 |
|
2317 this._tiles = {}; |
|
2318 this._tilesToLoad = 0; |
|
2319 |
|
2320 if (this.options.reuseTiles) { |
|
2321 this._unusedTiles = []; |
|
2322 } |
|
2323 |
|
2324 if (clearOldContainer && this._container) { |
|
2325 this._container.innerHTML = ""; |
|
2326 } |
|
2327 |
|
2328 this._initContainer(); |
|
2329 }, |
|
2330 |
|
2331 _update: function () { |
|
2332 |
|
2333 if (!this._map) { return; } |
|
2334 |
|
2335 var bounds = this._map.getPixelBounds(), |
|
2336 zoom = this._map.getZoom(), |
|
2337 tileSize = this.options.tileSize; |
|
2338 |
|
2339 if (zoom > this.options.maxZoom || zoom < this.options.minZoom) { |
|
2340 return; |
|
2341 } |
|
2342 |
|
2343 var nwTilePoint = new L.Point( |
|
2344 Math.floor(bounds.min.x / tileSize), |
|
2345 Math.floor(bounds.min.y / tileSize)), |
|
2346 |
|
2347 seTilePoint = new L.Point( |
|
2348 Math.floor(bounds.max.x / tileSize), |
|
2349 Math.floor(bounds.max.y / tileSize)), |
|
2350 |
|
2351 tileBounds = new L.Bounds(nwTilePoint, seTilePoint); |
|
2352 |
|
2353 this._addTilesFromCenterOut(tileBounds); |
|
2354 |
|
2355 if (this.options.unloadInvisibleTiles || this.options.reuseTiles) { |
|
2356 this._removeOtherTiles(tileBounds); |
|
2357 } |
|
2358 }, |
|
2359 |
|
2360 _addTilesFromCenterOut: function (bounds) { |
|
2361 var queue = [], |
|
2362 center = bounds.getCenter(); |
|
2363 |
|
2364 var j, i, point; |
|
2365 |
|
2366 for (j = bounds.min.y; j <= bounds.max.y; j++) { |
|
2367 for (i = bounds.min.x; i <= bounds.max.x; i++) { |
|
2368 point = new L.Point(i, j); |
|
2369 |
|
2370 if (this._tileShouldBeLoaded(point)) { |
|
2371 queue.push(point); |
|
2372 } |
|
2373 } |
|
2374 } |
|
2375 |
|
2376 var tilesToLoad = queue.length; |
|
2377 |
|
2378 if (tilesToLoad === 0) { return; } |
|
2379 |
|
2380 // load tiles in order of their distance to center |
|
2381 queue.sort(function (a, b) { |
|
2382 return a.distanceTo(center) - b.distanceTo(center); |
|
2383 }); |
|
2384 |
|
2385 var fragment = document.createDocumentFragment(); |
|
2386 |
|
2387 // if its the first batch of tiles to load |
|
2388 if (!this._tilesToLoad) { |
|
2389 this.fire('loading'); |
|
2390 } |
|
2391 |
|
2392 this._tilesToLoad += tilesToLoad; |
|
2393 |
|
2394 for (i = 0; i < tilesToLoad; i++) { |
|
2395 this._addTile(queue[i], fragment); |
|
2396 } |
|
2397 |
|
2398 this._container.appendChild(fragment); |
|
2399 }, |
|
2400 |
|
2401 _tileShouldBeLoaded: function (tilePoint) { |
|
2402 if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) { |
|
2403 return false; // already loaded |
|
2404 } |
|
2405 |
|
2406 if (!this.options.continuousWorld) { |
|
2407 var limit = this._getWrapTileNum(); |
|
2408 |
|
2409 if (this.options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit) || |
|
2410 tilePoint.y < 0 || tilePoint.y >= limit) { |
|
2411 return false; // exceeds world bounds |
|
2412 } |
|
2413 } |
|
2414 |
|
2415 return true; |
|
2416 }, |
|
2417 |
|
2418 _removeOtherTiles: function (bounds) { |
|
2419 var kArr, x, y, key; |
|
2420 |
|
2421 for (key in this._tiles) { |
|
2422 if (this._tiles.hasOwnProperty(key)) { |
|
2423 kArr = key.split(':'); |
|
2424 x = parseInt(kArr[0], 10); |
|
2425 y = parseInt(kArr[1], 10); |
|
2426 |
|
2427 // remove tile if it's out of bounds |
|
2428 if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) { |
|
2429 this._removeTile(key); |
|
2430 } |
|
2431 } |
|
2432 } |
|
2433 }, |
|
2434 |
|
2435 _removeTile: function (key) { |
|
2436 var tile = this._tiles[key]; |
|
2437 |
|
2438 this.fire("tileunload", {tile: tile, url: tile.src}); |
|
2439 |
|
2440 if (this.options.reuseTiles) { |
|
2441 L.DomUtil.removeClass(tile, 'leaflet-tile-loaded'); |
|
2442 this._unusedTiles.push(tile); |
|
2443 |
|
2444 } else if (tile.parentNode === this._container) { |
|
2445 this._container.removeChild(tile); |
|
2446 } |
|
2447 |
|
2448 // for https://github.com/CloudMade/Leaflet/issues/137 |
|
2449 if (!L.Browser.android) { |
|
2450 tile.src = L.Util.emptyImageUrl; |
|
2451 } |
|
2452 |
|
2453 delete this._tiles[key]; |
|
2454 }, |
|
2455 |
|
2456 _addTile: function (tilePoint, container) { |
|
2457 var tilePos = this._getTilePos(tilePoint); |
|
2458 |
|
2459 // get unused tile - or create a new tile |
|
2460 var tile = this._getTile(); |
|
2461 |
|
2462 /* |
|
2463 Chrome 20 layouts much faster with top/left (verify with timeline, frames) |
|
2464 Android 4 browser has display issues with top/left and requires transform instead |
|
2465 Android 3 browser not tested |
|
2466 Android 2 browser requires top/left or tiles disappear on load or first drag |
|
2467 (reappear after zoom) https://github.com/CloudMade/Leaflet/issues/866 |
|
2468 (other browsers don't currently care) - see debug/hacks/jitter.html for an example |
|
2469 */ |
|
2470 L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome || L.Browser.android23); |
|
2471 |
|
2472 this._tiles[tilePoint.x + ':' + tilePoint.y] = tile; |
|
2473 |
|
2474 this._loadTile(tile, tilePoint); |
|
2475 |
|
2476 if (tile.parentNode !== this._container) { |
|
2477 container.appendChild(tile); |
|
2478 } |
|
2479 }, |
|
2480 |
|
2481 _getZoomForUrl: function () { |
|
2482 |
|
2483 var options = this.options, |
|
2484 zoom = this._map.getZoom(); |
|
2485 |
|
2486 if (options.zoomReverse) { |
|
2487 zoom = options.maxZoom - zoom; |
|
2488 } |
|
2489 |
|
2490 return zoom + options.zoomOffset; |
|
2491 }, |
|
2492 |
|
2493 _getTilePos: function (tilePoint) { |
|
2494 var origin = this._map.getPixelOrigin(), |
|
2495 tileSize = this.options.tileSize; |
|
2496 |
|
2497 return tilePoint.multiplyBy(tileSize).subtract(origin); |
|
2498 }, |
|
2499 |
|
2500 // image-specific code (override to implement e.g. Canvas or SVG tile layer) |
|
2501 |
|
2502 getTileUrl: function (tilePoint) { |
|
2503 this._adjustTilePoint(tilePoint); |
|
2504 |
|
2505 return L.Util.template(this._url, L.extend({ |
|
2506 s: this._getSubdomain(tilePoint), |
|
2507 z: this._getZoomForUrl(), |
|
2508 x: tilePoint.x, |
|
2509 y: tilePoint.y |
|
2510 }, this.options)); |
|
2511 }, |
|
2512 |
|
2513 _getWrapTileNum: function () { |
|
2514 // TODO refactor, limit is not valid for non-standard projections |
|
2515 return Math.pow(2, this._getZoomForUrl()); |
|
2516 }, |
|
2517 |
|
2518 _adjustTilePoint: function (tilePoint) { |
|
2519 |
|
2520 var limit = this._getWrapTileNum(); |
|
2521 |
|
2522 // wrap tile coordinates |
|
2523 if (!this.options.continuousWorld && !this.options.noWrap) { |
|
2524 tilePoint.x = ((tilePoint.x % limit) + limit) % limit; |
|
2525 } |
|
2526 |
|
2527 if (this.options.tms) { |
|
2528 tilePoint.y = limit - tilePoint.y - 1; |
|
2529 } |
|
2530 }, |
|
2531 |
|
2532 _getSubdomain: function (tilePoint) { |
|
2533 var index = (tilePoint.x + tilePoint.y) % this.options.subdomains.length; |
|
2534 return this.options.subdomains[index]; |
|
2535 }, |
|
2536 |
|
2537 _createTileProto: function () { |
|
2538 var img = this._tileImg = L.DomUtil.create('img', 'leaflet-tile'); |
|
2539 img.style.width = img.style.height = this.options.tileSize + 'px'; |
|
2540 img.galleryimg = 'no'; |
|
2541 }, |
|
2542 |
|
2543 _getTile: function () { |
|
2544 if (this.options.reuseTiles && this._unusedTiles.length > 0) { |
|
2545 var tile = this._unusedTiles.pop(); |
|
2546 this._resetTile(tile); |
|
2547 return tile; |
|
2548 } |
|
2549 return this._createTile(); |
|
2550 }, |
|
2551 |
|
2552 // Override if data stored on a tile needs to be cleaned up before reuse |
|
2553 _resetTile: function (/*tile*/) {}, |
|
2554 |
|
2555 _createTile: function () { |
|
2556 var tile = this._tileImg.cloneNode(false); |
|
2557 tile.onselectstart = tile.onmousemove = L.Util.falseFn; |
|
2558 return tile; |
|
2559 }, |
|
2560 |
|
2561 _loadTile: function (tile, tilePoint) { |
|
2562 tile._layer = this; |
|
2563 tile.onload = this._tileOnLoad; |
|
2564 tile.onerror = this._tileOnError; |
|
2565 |
|
2566 tile.src = this.getTileUrl(tilePoint); |
|
2567 }, |
|
2568 |
|
2569 _tileLoaded: function () { |
|
2570 this._tilesToLoad--; |
|
2571 if (!this._tilesToLoad) { |
|
2572 this.fire('load'); |
|
2573 } |
|
2574 }, |
|
2575 |
|
2576 _tileOnLoad: function () { |
|
2577 var layer = this._layer; |
|
2578 |
|
2579 //Only if we are loading an actual image |
|
2580 if (this.src !== L.Util.emptyImageUrl) { |
|
2581 L.DomUtil.addClass(this, 'leaflet-tile-loaded'); |
|
2582 |
|
2583 layer.fire('tileload', { |
|
2584 tile: this, |
|
2585 url: this.src |
|
2586 }); |
|
2587 } |
|
2588 |
|
2589 layer._tileLoaded(); |
|
2590 }, |
|
2591 |
|
2592 _tileOnError: function () { |
|
2593 var layer = this._layer; |
|
2594 |
|
2595 layer.fire('tileerror', { |
|
2596 tile: this, |
|
2597 url: this.src |
|
2598 }); |
|
2599 |
|
2600 var newUrl = layer.options.errorTileUrl; |
|
2601 if (newUrl) { |
|
2602 this.src = newUrl; |
|
2603 } |
|
2604 |
|
2605 layer._tileLoaded(); |
|
2606 } |
|
2607 }); |
|
2608 |
|
2609 L.tileLayer = function (url, options) { |
|
2610 return new L.TileLayer(url, options); |
|
2611 }; |
|
2612 |
|
2613 |
|
2614 /* |
|
2615 * L.TileLayer.WMS is used for putting WMS tile layers on the map. |
|
2616 */ |
|
2617 |
|
2618 L.TileLayer.WMS = L.TileLayer.extend({ |
|
2619 |
|
2620 defaultWmsParams: { |
|
2621 service: 'WMS', |
|
2622 request: 'GetMap', |
|
2623 version: '1.1.1', |
|
2624 layers: '', |
|
2625 styles: '', |
|
2626 format: 'image/jpeg', |
|
2627 transparent: false |
|
2628 }, |
|
2629 |
|
2630 initialize: function (url, options) { // (String, Object) |
|
2631 |
|
2632 this._url = url; |
|
2633 |
|
2634 var wmsParams = L.extend({}, this.defaultWmsParams); |
|
2635 |
|
2636 if (options.detectRetina && L.Browser.retina) { |
|
2637 wmsParams.width = wmsParams.height = this.options.tileSize * 2; |
|
2638 } else { |
|
2639 wmsParams.width = wmsParams.height = this.options.tileSize; |
|
2640 } |
|
2641 |
|
2642 for (var i in options) { |
|
2643 // all keys that are not TileLayer options go to WMS params |
|
2644 if (!this.options.hasOwnProperty(i)) { |
|
2645 wmsParams[i] = options[i]; |
|
2646 } |
|
2647 } |
|
2648 |
|
2649 this.wmsParams = wmsParams; |
|
2650 |
|
2651 L.setOptions(this, options); |
|
2652 }, |
|
2653 |
|
2654 onAdd: function (map) { |
|
2655 |
|
2656 var projectionKey = parseFloat(this.wmsParams.version) >= 1.3 ? 'crs' : 'srs'; |
|
2657 this.wmsParams[projectionKey] = map.options.crs.code; |
|
2658 |
|
2659 L.TileLayer.prototype.onAdd.call(this, map); |
|
2660 }, |
|
2661 |
|
2662 getTileUrl: function (tilePoint, zoom) { // (Point, Number) -> String |
|
2663 |
|
2664 this._adjustTilePoint(tilePoint); |
|
2665 |
|
2666 var map = this._map, |
|
2667 crs = map.options.crs, |
|
2668 tileSize = this.options.tileSize, |
|
2669 |
|
2670 nwPoint = tilePoint.multiplyBy(tileSize), |
|
2671 sePoint = nwPoint.add(new L.Point(tileSize, tileSize)), |
|
2672 |
|
2673 nw = crs.project(map.unproject(nwPoint, zoom)), |
|
2674 se = crs.project(map.unproject(sePoint, zoom)), |
|
2675 |
|
2676 bbox = [nw.x, se.y, se.x, nw.y].join(','), |
|
2677 |
|
2678 url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)}); |
|
2679 |
|
2680 return url + L.Util.getParamString(this.wmsParams, url) + "&bbox=" + bbox; |
|
2681 }, |
|
2682 |
|
2683 setParams: function (params, noRedraw) { |
|
2684 |
|
2685 L.extend(this.wmsParams, params); |
|
2686 |
|
2687 if (!noRedraw) { |
|
2688 this.redraw(); |
|
2689 } |
|
2690 |
|
2691 return this; |
|
2692 } |
|
2693 }); |
|
2694 |
|
2695 L.tileLayer.wms = function (url, options) { |
|
2696 return new L.TileLayer.WMS(url, options); |
|
2697 }; |
|
2698 |
|
2699 |
|
2700 /* |
|
2701 * L.TileLayer.Canvas is a class that you can use as a base for creating |
|
2702 * dynamically drawn Canvas-based tile layers. |
|
2703 */ |
|
2704 |
|
2705 L.TileLayer.Canvas = L.TileLayer.extend({ |
|
2706 options: { |
|
2707 async: false |
|
2708 }, |
|
2709 |
|
2710 initialize: function (options) { |
|
2711 L.setOptions(this, options); |
|
2712 }, |
|
2713 |
|
2714 redraw: function () { |
|
2715 var tiles = this._tiles; |
|
2716 |
|
2717 for (var i in tiles) { |
|
2718 if (tiles.hasOwnProperty(i)) { |
|
2719 this._redrawTile(tiles[i]); |
|
2720 } |
|
2721 } |
|
2722 }, |
|
2723 |
|
2724 _redrawTile: function (tile) { |
|
2725 this.drawTile(tile, tile._tilePoint, this._map._zoom); |
|
2726 }, |
|
2727 |
|
2728 _createTileProto: function () { |
|
2729 var proto = this._canvasProto = L.DomUtil.create('canvas', 'leaflet-tile'); |
|
2730 proto.width = proto.height = this.options.tileSize; |
|
2731 }, |
|
2732 |
|
2733 _createTile: function () { |
|
2734 var tile = this._canvasProto.cloneNode(false); |
|
2735 tile.onselectstart = tile.onmousemove = L.Util.falseFn; |
|
2736 return tile; |
|
2737 }, |
|
2738 |
|
2739 _loadTile: function (tile, tilePoint) { |
|
2740 tile._layer = this; |
|
2741 tile._tilePoint = tilePoint; |
|
2742 |
|
2743 this._redrawTile(tile); |
|
2744 |
|
2745 if (!this.options.async) { |
|
2746 this.tileDrawn(tile); |
|
2747 } |
|
2748 }, |
|
2749 |
|
2750 drawTile: function (/*tile, tilePoint*/) { |
|
2751 // override with rendering code |
|
2752 }, |
|
2753 |
|
2754 tileDrawn: function (tile) { |
|
2755 this._tileOnLoad.call(tile); |
|
2756 } |
|
2757 }); |
|
2758 |
|
2759 |
|
2760 L.tileLayer.canvas = function (options) { |
|
2761 return new L.TileLayer.Canvas(options); |
|
2762 }; |
|
2763 |
|
2764 |
|
2765 /* |
|
2766 * L.ImageOverlay is used to overlay images over the map (to specific geographical bounds). |
|
2767 */ |
|
2768 |
|
2769 L.ImageOverlay = L.Class.extend({ |
|
2770 includes: L.Mixin.Events, |
|
2771 |
|
2772 options: { |
|
2773 opacity: 1 |
|
2774 }, |
|
2775 |
|
2776 initialize: function (url, bounds, options) { // (String, LatLngBounds, Object) |
|
2777 this._url = url; |
|
2778 this._bounds = L.latLngBounds(bounds); |
|
2779 |
|
2780 L.setOptions(this, options); |
|
2781 }, |
|
2782 |
|
2783 onAdd: function (map) { |
|
2784 this._map = map; |
|
2785 |
|
2786 if (!this._image) { |
|
2787 this._initImage(); |
|
2788 } |
|
2789 |
|
2790 map._panes.overlayPane.appendChild(this._image); |
|
2791 |
|
2792 map.on('viewreset', this._reset, this); |
|
2793 |
|
2794 if (map.options.zoomAnimation && L.Browser.any3d) { |
|
2795 map.on('zoomanim', this._animateZoom, this); |
|
2796 } |
|
2797 |
|
2798 this._reset(); |
|
2799 }, |
|
2800 |
|
2801 onRemove: function (map) { |
|
2802 map.getPanes().overlayPane.removeChild(this._image); |
|
2803 |
|
2804 map.off('viewreset', this._reset, this); |
|
2805 |
|
2806 if (map.options.zoomAnimation) { |
|
2807 map.off('zoomanim', this._animateZoom, this); |
|
2808 } |
|
2809 }, |
|
2810 |
|
2811 addTo: function (map) { |
|
2812 map.addLayer(this); |
|
2813 return this; |
|
2814 }, |
|
2815 |
|
2816 setOpacity: function (opacity) { |
|
2817 this.options.opacity = opacity; |
|
2818 this._updateOpacity(); |
|
2819 return this; |
|
2820 }, |
|
2821 |
|
2822 // TODO remove bringToFront/bringToBack duplication from TileLayer/Path |
|
2823 bringToFront: function () { |
|
2824 if (this._image) { |
|
2825 this._map._panes.overlayPane.appendChild(this._image); |
|
2826 } |
|
2827 return this; |
|
2828 }, |
|
2829 |
|
2830 bringToBack: function () { |
|
2831 var pane = this._map._panes.overlayPane; |
|
2832 if (this._image) { |
|
2833 pane.insertBefore(this._image, pane.firstChild); |
|
2834 } |
|
2835 return this; |
|
2836 }, |
|
2837 |
|
2838 _initImage: function () { |
|
2839 this._image = L.DomUtil.create('img', 'leaflet-image-layer'); |
|
2840 |
|
2841 if (this._map.options.zoomAnimation && L.Browser.any3d) { |
|
2842 L.DomUtil.addClass(this._image, 'leaflet-zoom-animated'); |
|
2843 } else { |
|
2844 L.DomUtil.addClass(this._image, 'leaflet-zoom-hide'); |
|
2845 } |
|
2846 |
|
2847 this._updateOpacity(); |
|
2848 |
|
2849 //TODO createImage util method to remove duplication |
|
2850 L.extend(this._image, { |
|
2851 galleryimg: 'no', |
|
2852 onselectstart: L.Util.falseFn, |
|
2853 onmousemove: L.Util.falseFn, |
|
2854 onload: L.bind(this._onImageLoad, this), |
|
2855 src: this._url |
|
2856 }); |
|
2857 }, |
|
2858 |
|
2859 _animateZoom: function (e) { |
|
2860 var map = this._map, |
|
2861 image = this._image, |
|
2862 scale = map.getZoomScale(e.zoom), |
|
2863 nw = this._bounds.getNorthWest(), |
|
2864 se = this._bounds.getSouthEast(), |
|
2865 |
|
2866 topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center), |
|
2867 size = map._latLngToNewLayerPoint(se, e.zoom, e.center)._subtract(topLeft), |
|
2868 origin = topLeft._add(size._multiplyBy((1 / 2) * (1 - 1 / scale))); |
|
2869 |
|
2870 image.style[L.DomUtil.TRANSFORM] = |
|
2871 L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') '; |
|
2872 }, |
|
2873 |
|
2874 _reset: function () { |
|
2875 var image = this._image, |
|
2876 topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()), |
|
2877 size = this._map.latLngToLayerPoint(this._bounds.getSouthEast())._subtract(topLeft); |
|
2878 |
|
2879 L.DomUtil.setPosition(image, topLeft); |
|
2880 |
|
2881 image.style.width = size.x + 'px'; |
|
2882 image.style.height = size.y + 'px'; |
|
2883 }, |
|
2884 |
|
2885 _onImageLoad: function () { |
|
2886 this.fire('load'); |
|
2887 }, |
|
2888 |
|
2889 _updateOpacity: function () { |
|
2890 L.DomUtil.setOpacity(this._image, this.options.opacity); |
|
2891 } |
|
2892 }); |
|
2893 |
|
2894 L.imageOverlay = function (url, bounds, options) { |
|
2895 return new L.ImageOverlay(url, bounds, options); |
|
2896 }; |
|
2897 |
|
2898 |
|
2899 /* |
|
2900 * L.Icon is an image-based icon class that you can use with L.Marker for custom markers. |
|
2901 */ |
|
2902 |
|
2903 L.Icon = L.Class.extend({ |
|
2904 options: { |
|
2905 /* |
|
2906 iconUrl: (String) (required) |
|
2907 iconRetinaUrl: (String) (optional, used for retina devices if detected) |
|
2908 iconSize: (Point) (can be set through CSS) |
|
2909 iconAnchor: (Point) (centered by default, can be set in CSS with negative margins) |
|
2910 popupAnchor: (Point) (if not specified, popup opens in the anchor point) |
|
2911 shadowUrl: (Point) (no shadow by default) |
|
2912 shadowRetinaUrl: (String) (optional, used for retina devices if detected) |
|
2913 shadowSize: (Point) |
|
2914 shadowAnchor: (Point) |
|
2915 */ |
|
2916 className: '' |
|
2917 }, |
|
2918 |
|
2919 initialize: function (options) { |
|
2920 L.setOptions(this, options); |
|
2921 }, |
|
2922 |
|
2923 createIcon: function () { |
|
2924 return this._createIcon('icon'); |
|
2925 }, |
|
2926 |
|
2927 createShadow: function () { |
|
2928 return this._createIcon('shadow'); |
|
2929 }, |
|
2930 |
|
2931 _createIcon: function (name) { |
|
2932 var src = this._getIconUrl(name); |
|
2933 |
|
2934 if (!src) { |
|
2935 if (name === 'icon') { |
|
2936 throw new Error("iconUrl not set in Icon options (see the docs)."); |
|
2937 } |
|
2938 return null; |
|
2939 } |
|
2940 |
|
2941 var img = this._createImg(src); |
|
2942 this._setIconStyles(img, name); |
|
2943 |
|
2944 return img; |
|
2945 }, |
|
2946 |
|
2947 _setIconStyles: function (img, name) { |
|
2948 var options = this.options, |
|
2949 size = L.point(options[name + 'Size']), |
|
2950 anchor; |
|
2951 |
|
2952 if (name === 'shadow') { |
|
2953 anchor = L.point(options.shadowAnchor || options.iconAnchor); |
|
2954 } else { |
|
2955 anchor = L.point(options.iconAnchor); |
|
2956 } |
|
2957 |
|
2958 if (!anchor && size) { |
|
2959 anchor = size.divideBy(2, true); |
|
2960 } |
|
2961 |
|
2962 img.className = 'leaflet-marker-' + name + ' ' + options.className; |
|
2963 |
|
2964 if (anchor) { |
|
2965 img.style.marginLeft = (-anchor.x) + 'px'; |
|
2966 img.style.marginTop = (-anchor.y) + 'px'; |
|
2967 } |
|
2968 |
|
2969 if (size) { |
|
2970 img.style.width = size.x + 'px'; |
|
2971 img.style.height = size.y + 'px'; |
|
2972 } |
|
2973 }, |
|
2974 |
|
2975 _createImg: function (src) { |
|
2976 var el; |
|
2977 |
|
2978 if (!L.Browser.ie6) { |
|
2979 el = document.createElement('img'); |
|
2980 el.src = src; |
|
2981 } else { |
|
2982 el = document.createElement('div'); |
|
2983 el.style.filter = |
|
2984 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src="' + src + '")'; |
|
2985 } |
|
2986 return el; |
|
2987 }, |
|
2988 |
|
2989 _getIconUrl: function (name) { |
|
2990 if (L.Browser.retina && this.options[name + 'RetinaUrl']) { |
|
2991 return this.options[name + 'RetinaUrl']; |
|
2992 } |
|
2993 return this.options[name + 'Url']; |
|
2994 } |
|
2995 }); |
|
2996 |
|
2997 L.icon = function (options) { |
|
2998 return new L.Icon(options); |
|
2999 }; |
|
3000 |
|
3001 |
|
3002 /* |
|
3003 * L.Icon.Default is the blue marker icon used by default in Leaflet. |
|
3004 */ |
|
3005 |
|
3006 L.Icon.Default = L.Icon.extend({ |
|
3007 |
|
3008 options: { |
|
3009 iconSize: new L.Point(25, 41), |
|
3010 iconAnchor: new L.Point(12, 41), |
|
3011 popupAnchor: new L.Point(1, -34), |
|
3012 |
|
3013 shadowSize: new L.Point(41, 41) |
|
3014 }, |
|
3015 |
|
3016 _getIconUrl: function (name) { |
|
3017 var key = name + 'Url'; |
|
3018 |
|
3019 if (this.options[key]) { |
|
3020 return this.options[key]; |
|
3021 } |
|
3022 |
|
3023 if (L.Browser.retina && name === 'icon') { |
|
3024 name += '@2x'; |
|
3025 } |
|
3026 |
|
3027 var path = L.Icon.Default.imagePath; |
|
3028 |
|
3029 if (!path) { |
|
3030 throw new Error("Couldn't autodetect L.Icon.Default.imagePath, set it manually."); |
|
3031 } |
|
3032 |
|
3033 return path + '/marker-' + name + '.png'; |
|
3034 } |
|
3035 }); |
|
3036 |
|
3037 L.Icon.Default.imagePath = (function () { |
|
3038 var scripts = document.getElementsByTagName('script'), |
|
3039 leafletRe = /\/?leaflet[\-\._]?([\w\-\._]*)\.js\??/; |
|
3040 |
|
3041 var i, len, src, matches; |
|
3042 |
|
3043 for (i = 0, len = scripts.length; i < len; i++) { |
|
3044 src = scripts[i].src; |
|
3045 matches = src.match(leafletRe); |
|
3046 |
|
3047 if (matches) { |
|
3048 return src.split(leafletRe)[0] + '/images'; |
|
3049 } |
|
3050 } |
|
3051 }()); |
|
3052 |
|
3053 |
|
3054 /* |
|
3055 * L.Marker is used to display clickable/draggable icons on the map. |
|
3056 */ |
|
3057 |
|
3058 L.Marker = L.Class.extend({ |
|
3059 |
|
3060 includes: L.Mixin.Events, |
|
3061 |
|
3062 options: { |
|
3063 icon: new L.Icon.Default(), |
|
3064 title: '', |
|
3065 clickable: true, |
|
3066 draggable: false, |
|
3067 zIndexOffset: 0, |
|
3068 opacity: 1, |
|
3069 riseOnHover: false, |
|
3070 riseOffset: 250 |
|
3071 }, |
|
3072 |
|
3073 initialize: function (latlng, options) { |
|
3074 L.setOptions(this, options); |
|
3075 this._latlng = L.latLng(latlng); |
|
3076 }, |
|
3077 |
|
3078 onAdd: function (map) { |
|
3079 this._map = map; |
|
3080 |
|
3081 map.on('viewreset', this.update, this); |
|
3082 |
|
3083 this._initIcon(); |
|
3084 this.update(); |
|
3085 |
|
3086 if (map.options.zoomAnimation && map.options.markerZoomAnimation) { |
|
3087 map.on('zoomanim', this._animateZoom, this); |
|
3088 } |
|
3089 }, |
|
3090 |
|
3091 addTo: function (map) { |
|
3092 map.addLayer(this); |
|
3093 return this; |
|
3094 }, |
|
3095 |
|
3096 onRemove: function (map) { |
|
3097 this._removeIcon(); |
|
3098 |
|
3099 this.fire('remove'); |
|
3100 |
|
3101 map.off({ |
|
3102 'viewreset': this.update, |
|
3103 'zoomanim': this._animateZoom |
|
3104 }, this); |
|
3105 |
|
3106 this._map = null; |
|
3107 }, |
|
3108 |
|
3109 getLatLng: function () { |
|
3110 return this._latlng; |
|
3111 }, |
|
3112 |
|
3113 setLatLng: function (latlng) { |
|
3114 this._latlng = L.latLng(latlng); |
|
3115 |
|
3116 this.update(); |
|
3117 |
|
3118 return this.fire('move', { latlng: this._latlng }); |
|
3119 }, |
|
3120 |
|
3121 setZIndexOffset: function (offset) { |
|
3122 this.options.zIndexOffset = offset; |
|
3123 this.update(); |
|
3124 |
|
3125 return this; |
|
3126 }, |
|
3127 |
|
3128 setIcon: function (icon) { |
|
3129 if (this._map) { |
|
3130 this._removeIcon(); |
|
3131 } |
|
3132 |
|
3133 this.options.icon = icon; |
|
3134 |
|
3135 if (this._map) { |
|
3136 this._initIcon(); |
|
3137 this.update(); |
|
3138 } |
|
3139 |
|
3140 return this; |
|
3141 }, |
|
3142 |
|
3143 update: function () { |
|
3144 if (this._icon) { |
|
3145 var pos = this._map.latLngToLayerPoint(this._latlng).round(); |
|
3146 this._setPos(pos); |
|
3147 } |
|
3148 |
|
3149 return this; |
|
3150 }, |
|
3151 |
|
3152 _initIcon: function () { |
|
3153 var options = this.options, |
|
3154 map = this._map, |
|
3155 animation = (map.options.zoomAnimation && map.options.markerZoomAnimation), |
|
3156 classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide', |
|
3157 needOpacityUpdate = false; |
|
3158 |
|
3159 if (!this._icon) { |
|
3160 this._icon = options.icon.createIcon(); |
|
3161 |
|
3162 if (options.title) { |
|
3163 this._icon.title = options.title; |
|
3164 } |
|
3165 |
|
3166 this._initInteraction(); |
|
3167 needOpacityUpdate = (this.options.opacity < 1); |
|
3168 |
|
3169 L.DomUtil.addClass(this._icon, classToAdd); |
|
3170 |
|
3171 if (options.riseOnHover) { |
|
3172 L.DomEvent |
|
3173 .on(this._icon, 'mouseover', this._bringToFront, this) |
|
3174 .on(this._icon, 'mouseout', this._resetZIndex, this); |
|
3175 } |
|
3176 } |
|
3177 |
|
3178 if (!this._shadow) { |
|
3179 this._shadow = options.icon.createShadow(); |
|
3180 |
|
3181 if (this._shadow) { |
|
3182 L.DomUtil.addClass(this._shadow, classToAdd); |
|
3183 needOpacityUpdate = (this.options.opacity < 1); |
|
3184 } |
|
3185 } |
|
3186 |
|
3187 if (needOpacityUpdate) { |
|
3188 this._updateOpacity(); |
|
3189 } |
|
3190 |
|
3191 var panes = this._map._panes; |
|
3192 |
|
3193 panes.markerPane.appendChild(this._icon); |
|
3194 |
|
3195 if (this._shadow) { |
|
3196 panes.shadowPane.appendChild(this._shadow); |
|
3197 } |
|
3198 }, |
|
3199 |
|
3200 _removeIcon: function () { |
|
3201 var panes = this._map._panes; |
|
3202 |
|
3203 if (this.options.riseOnHover) { |
|
3204 L.DomEvent |
|
3205 .off(this._icon, 'mouseover', this._bringToFront) |
|
3206 .off(this._icon, 'mouseout', this._resetZIndex); |
|
3207 } |
|
3208 |
|
3209 panes.markerPane.removeChild(this._icon); |
|
3210 |
|
3211 if (this._shadow) { |
|
3212 panes.shadowPane.removeChild(this._shadow); |
|
3213 } |
|
3214 |
|
3215 this._icon = this._shadow = null; |
|
3216 }, |
|
3217 |
|
3218 _setPos: function (pos) { |
|
3219 L.DomUtil.setPosition(this._icon, pos); |
|
3220 |
|
3221 if (this._shadow) { |
|
3222 L.DomUtil.setPosition(this._shadow, pos); |
|
3223 } |
|
3224 |
|
3225 this._zIndex = pos.y + this.options.zIndexOffset; |
|
3226 |
|
3227 this._resetZIndex(); |
|
3228 }, |
|
3229 |
|
3230 _updateZIndex: function (offset) { |
|
3231 this._icon.style.zIndex = this._zIndex + offset; |
|
3232 }, |
|
3233 |
|
3234 _animateZoom: function (opt) { |
|
3235 var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center); |
|
3236 |
|
3237 this._setPos(pos); |
|
3238 }, |
|
3239 |
|
3240 _initInteraction: function () { |
|
3241 |
|
3242 if (!this.options.clickable) { return; } |
|
3243 |
|
3244 // TODO refactor into something shared with Map/Path/etc. to DRY it up |
|
3245 |
|
3246 var icon = this._icon, |
|
3247 events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'contextmenu']; |
|
3248 |
|
3249 L.DomUtil.addClass(icon, 'leaflet-clickable'); |
|
3250 L.DomEvent.on(icon, 'click', this._onMouseClick, this); |
|
3251 |
|
3252 for (var i = 0; i < events.length; i++) { |
|
3253 L.DomEvent.on(icon, events[i], this._fireMouseEvent, this); |
|
3254 } |
|
3255 |
|
3256 if (L.Handler.MarkerDrag) { |
|
3257 this.dragging = new L.Handler.MarkerDrag(this); |
|
3258 |
|
3259 if (this.options.draggable) { |
|
3260 this.dragging.enable(); |
|
3261 } |
|
3262 } |
|
3263 }, |
|
3264 |
|
3265 _onMouseClick: function (e) { |
|
3266 var wasDragged = this.dragging && this.dragging.moved(); |
|
3267 |
|
3268 if (this.hasEventListeners(e.type) || wasDragged) { |
|
3269 L.DomEvent.stopPropagation(e); |
|
3270 } |
|
3271 |
|
3272 if (wasDragged) { return; } |
|
3273 |
|
3274 if ((!this.dragging || !this.dragging._enabled) && this._map.dragging && this._map.dragging.moved()) { return; } |
|
3275 |
|
3276 this.fire(e.type, { |
|
3277 originalEvent: e |
|
3278 }); |
|
3279 }, |
|
3280 |
|
3281 _fireMouseEvent: function (e) { |
|
3282 |
|
3283 this.fire(e.type, { |
|
3284 originalEvent: e |
|
3285 }); |
|
3286 |
|
3287 // TODO proper custom event propagation |
|
3288 // this line will always be called if marker is in a FeatureGroup |
|
3289 if (e.type === 'contextmenu' && this.hasEventListeners(e.type)) { |
|
3290 L.DomEvent.preventDefault(e); |
|
3291 } |
|
3292 if (e.type !== 'mousedown') { |
|
3293 L.DomEvent.stopPropagation(e); |
|
3294 } |
|
3295 }, |
|
3296 |
|
3297 setOpacity: function (opacity) { |
|
3298 this.options.opacity = opacity; |
|
3299 if (this._map) { |
|
3300 this._updateOpacity(); |
|
3301 } |
|
3302 }, |
|
3303 |
|
3304 _updateOpacity: function () { |
|
3305 L.DomUtil.setOpacity(this._icon, this.options.opacity); |
|
3306 if (this._shadow) { |
|
3307 L.DomUtil.setOpacity(this._shadow, this.options.opacity); |
|
3308 } |
|
3309 }, |
|
3310 |
|
3311 _bringToFront: function () { |
|
3312 this._updateZIndex(this.options.riseOffset); |
|
3313 }, |
|
3314 |
|
3315 _resetZIndex: function () { |
|
3316 this._updateZIndex(0); |
|
3317 } |
|
3318 }); |
|
3319 |
|
3320 L.marker = function (latlng, options) { |
|
3321 return new L.Marker(latlng, options); |
|
3322 }; |
|
3323 |
|
3324 |
|
3325 /* |
|
3326 * L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon) |
|
3327 * to use with L.Marker. |
|
3328 */ |
|
3329 |
|
3330 L.DivIcon = L.Icon.extend({ |
|
3331 options: { |
|
3332 iconSize: new L.Point(12, 12), // also can be set through CSS |
|
3333 /* |
|
3334 iconAnchor: (Point) |
|
3335 popupAnchor: (Point) |
|
3336 html: (String) |
|
3337 bgPos: (Point) |
|
3338 */ |
|
3339 className: 'leaflet-div-icon' |
|
3340 }, |
|
3341 |
|
3342 createIcon: function () { |
|
3343 var div = document.createElement('div'), |
|
3344 options = this.options; |
|
3345 |
|
3346 if (options.html) { |
|
3347 div.innerHTML = options.html; |
|
3348 } |
|
3349 |
|
3350 if (options.bgPos) { |
|
3351 div.style.backgroundPosition = |
|
3352 (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px'; |
|
3353 } |
|
3354 |
|
3355 this._setIconStyles(div, 'icon'); |
|
3356 return div; |
|
3357 }, |
|
3358 |
|
3359 createShadow: function () { |
|
3360 return null; |
|
3361 } |
|
3362 }); |
|
3363 |
|
3364 L.divIcon = function (options) { |
|
3365 return new L.DivIcon(options); |
|
3366 }; |
|
3367 |
|
3368 |
|
3369 /* |
|
3370 * L.Popup is used for displaying popups on the map. |
|
3371 */ |
|
3372 |
|
3373 L.Map.mergeOptions({ |
|
3374 closePopupOnClick: true |
|
3375 }); |
|
3376 |
|
3377 L.Popup = L.Class.extend({ |
|
3378 includes: L.Mixin.Events, |
|
3379 |
|
3380 options: { |
|
3381 minWidth: 50, |
|
3382 maxWidth: 300, |
|
3383 maxHeight: null, |
|
3384 autoPan: true, |
|
3385 closeButton: true, |
|
3386 offset: new L.Point(0, 6), |
|
3387 autoPanPadding: new L.Point(5, 5), |
|
3388 className: '', |
|
3389 zoomAnimation: true |
|
3390 }, |
|
3391 |
|
3392 initialize: function (options, source) { |
|
3393 L.setOptions(this, options); |
|
3394 |
|
3395 this._source = source; |
|
3396 this._animated = L.Browser.any3d && this.options.zoomAnimation; |
|
3397 }, |
|
3398 |
|
3399 onAdd: function (map) { |
|
3400 this._map = map; |
|
3401 |
|
3402 if (!this._container) { |
|
3403 this._initLayout(); |
|
3404 } |
|
3405 this._updateContent(); |
|
3406 |
|
3407 var animFade = map.options.fadeAnimation; |
|
3408 |
|
3409 if (animFade) { |
|
3410 L.DomUtil.setOpacity(this._container, 0); |
|
3411 } |
|
3412 map._panes.popupPane.appendChild(this._container); |
|
3413 |
|
3414 map.on('viewreset', this._updatePosition, this); |
|
3415 |
|
3416 if (this._animated) { |
|
3417 map.on('zoomanim', this._zoomAnimation, this); |
|
3418 } |
|
3419 |
|
3420 if (map.options.closePopupOnClick) { |
|
3421 map.on('preclick', this._close, this); |
|
3422 } |
|
3423 |
|
3424 this._update(); |
|
3425 |
|
3426 if (animFade) { |
|
3427 L.DomUtil.setOpacity(this._container, 1); |
|
3428 } |
|
3429 }, |
|
3430 |
|
3431 addTo: function (map) { |
|
3432 map.addLayer(this); |
|
3433 return this; |
|
3434 }, |
|
3435 |
|
3436 openOn: function (map) { |
|
3437 map.openPopup(this); |
|
3438 return this; |
|
3439 }, |
|
3440 |
|
3441 onRemove: function (map) { |
|
3442 map._panes.popupPane.removeChild(this._container); |
|
3443 |
|
3444 L.Util.falseFn(this._container.offsetWidth); // force reflow |
|
3445 |
|
3446 map.off({ |
|
3447 viewreset: this._updatePosition, |
|
3448 preclick: this._close, |
|
3449 zoomanim: this._zoomAnimation |
|
3450 }, this); |
|
3451 |
|
3452 if (map.options.fadeAnimation) { |
|
3453 L.DomUtil.setOpacity(this._container, 0); |
|
3454 } |
|
3455 |
|
3456 this._map = null; |
|
3457 }, |
|
3458 |
|
3459 setLatLng: function (latlng) { |
|
3460 this._latlng = L.latLng(latlng); |
|
3461 this._update(); |
|
3462 return this; |
|
3463 }, |
|
3464 |
|
3465 setContent: function (content) { |
|
3466 this._content = content; |
|
3467 this._update(); |
|
3468 return this; |
|
3469 }, |
|
3470 |
|
3471 _close: function () { |
|
3472 var map = this._map; |
|
3473 |
|
3474 if (map) { |
|
3475 map._popup = null; |
|
3476 |
|
3477 map |
|
3478 .removeLayer(this) |
|
3479 .fire('popupclose', {popup: this}); |
|
3480 } |
|
3481 }, |
|
3482 |
|
3483 _initLayout: function () { |
|
3484 var prefix = 'leaflet-popup', |
|
3485 containerClass = prefix + ' ' + this.options.className + ' leaflet-zoom-' + |
|
3486 (this._animated ? 'animated' : 'hide'), |
|
3487 container = this._container = L.DomUtil.create('div', containerClass), |
|
3488 closeButton; |
|
3489 |
|
3490 if (this.options.closeButton) { |
|
3491 closeButton = this._closeButton = |
|
3492 L.DomUtil.create('a', prefix + '-close-button', container); |
|
3493 closeButton.href = '#close'; |
|
3494 closeButton.innerHTML = '×'; |
|
3495 |
|
3496 L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this); |
|
3497 } |
|
3498 |
|
3499 var wrapper = this._wrapper = |
|
3500 L.DomUtil.create('div', prefix + '-content-wrapper', container); |
|
3501 L.DomEvent.disableClickPropagation(wrapper); |
|
3502 |
|
3503 this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper); |
|
3504 L.DomEvent.on(this._contentNode, 'mousewheel', L.DomEvent.stopPropagation); |
|
3505 |
|
3506 this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container); |
|
3507 this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer); |
|
3508 }, |
|
3509 |
|
3510 _update: function () { |
|
3511 if (!this._map) { return; } |
|
3512 |
|
3513 this._container.style.visibility = 'hidden'; |
|
3514 |
|
3515 this._updateContent(); |
|
3516 this._updateLayout(); |
|
3517 this._updatePosition(); |
|
3518 |
|
3519 this._container.style.visibility = ''; |
|
3520 |
|
3521 this._adjustPan(); |
|
3522 }, |
|
3523 |
|
3524 _updateContent: function () { |
|
3525 if (!this._content) { return; } |
|
3526 |
|
3527 if (typeof this._content === 'string') { |
|
3528 this._contentNode.innerHTML = this._content; |
|
3529 } else { |
|
3530 while (this._contentNode.hasChildNodes()) { |
|
3531 this._contentNode.removeChild(this._contentNode.firstChild); |
|
3532 } |
|
3533 this._contentNode.appendChild(this._content); |
|
3534 } |
|
3535 this.fire('contentupdate'); |
|
3536 }, |
|
3537 |
|
3538 _updateLayout: function () { |
|
3539 var container = this._contentNode, |
|
3540 style = container.style; |
|
3541 |
|
3542 style.width = ''; |
|
3543 style.whiteSpace = 'nowrap'; |
|
3544 |
|
3545 var width = container.offsetWidth; |
|
3546 width = Math.min(width, this.options.maxWidth); |
|
3547 width = Math.max(width, this.options.minWidth); |
|
3548 |
|
3549 style.width = (width + 1) + 'px'; |
|
3550 style.whiteSpace = ''; |
|
3551 |
|
3552 style.height = ''; |
|
3553 |
|
3554 var height = container.offsetHeight, |
|
3555 maxHeight = this.options.maxHeight, |
|
3556 scrolledClass = 'leaflet-popup-scrolled'; |
|
3557 |
|
3558 if (maxHeight && height > maxHeight) { |
|
3559 style.height = maxHeight + 'px'; |
|
3560 L.DomUtil.addClass(container, scrolledClass); |
|
3561 } else { |
|
3562 L.DomUtil.removeClass(container, scrolledClass); |
|
3563 } |
|
3564 |
|
3565 this._containerWidth = this._container.offsetWidth; |
|
3566 }, |
|
3567 |
|
3568 _updatePosition: function () { |
|
3569 if (!this._map) { return; } |
|
3570 |
|
3571 var pos = this._map.latLngToLayerPoint(this._latlng), |
|
3572 animated = this._animated, |
|
3573 offset = this.options.offset; |
|
3574 |
|
3575 if (animated) { |
|
3576 L.DomUtil.setPosition(this._container, pos); |
|
3577 } |
|
3578 |
|
3579 this._containerBottom = -offset.y - (animated ? 0 : pos.y); |
|
3580 this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (animated ? 0 : pos.x); |
|
3581 |
|
3582 //Bottom position the popup in case the height of the popup changes (images loading etc) |
|
3583 this._container.style.bottom = this._containerBottom + 'px'; |
|
3584 this._container.style.left = this._containerLeft + 'px'; |
|
3585 }, |
|
3586 |
|
3587 _zoomAnimation: function (opt) { |
|
3588 var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center); |
|
3589 |
|
3590 L.DomUtil.setPosition(this._container, pos); |
|
3591 }, |
|
3592 |
|
3593 _adjustPan: function () { |
|
3594 if (!this.options.autoPan) { return; } |
|
3595 |
|
3596 var map = this._map, |
|
3597 containerHeight = this._container.offsetHeight, |
|
3598 containerWidth = this._containerWidth, |
|
3599 |
|
3600 layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom); |
|
3601 |
|
3602 if (this._animated) { |
|
3603 layerPos._add(L.DomUtil.getPosition(this._container)); |
|
3604 } |
|
3605 |
|
3606 var containerPos = map.layerPointToContainerPoint(layerPos), |
|
3607 padding = this.options.autoPanPadding, |
|
3608 size = map.getSize(), |
|
3609 dx = 0, |
|
3610 dy = 0; |
|
3611 |
|
3612 if (containerPos.x < 0) { |
|
3613 dx = containerPos.x - padding.x; |
|
3614 } |
|
3615 if (containerPos.x + containerWidth > size.x) { |
|
3616 dx = containerPos.x + containerWidth - size.x + padding.x; |
|
3617 } |
|
3618 if (containerPos.y < 0) { |
|
3619 dy = containerPos.y - padding.y; |
|
3620 } |
|
3621 if (containerPos.y + containerHeight > size.y) { |
|
3622 dy = containerPos.y + containerHeight - size.y + padding.y; |
|
3623 } |
|
3624 |
|
3625 if (dx || dy) { |
|
3626 map.panBy(new L.Point(dx, dy)); |
|
3627 } |
|
3628 }, |
|
3629 |
|
3630 _onCloseButtonClick: function (e) { |
|
3631 this._close(); |
|
3632 L.DomEvent.stop(e); |
|
3633 } |
|
3634 }); |
|
3635 |
|
3636 L.popup = function (options, source) { |
|
3637 return new L.Popup(options, source); |
|
3638 }; |
|
3639 |
|
3640 |
|
3641 /* |
|
3642 * Popup extension to L.Marker, adding popup-related methods. |
|
3643 */ |
|
3644 |
|
3645 L.Marker.include({ |
|
3646 openPopup: function () { |
|
3647 if (this._popup && this._map) { |
|
3648 this._popup.setLatLng(this._latlng); |
|
3649 this._map.openPopup(this._popup); |
|
3650 } |
|
3651 |
|
3652 return this; |
|
3653 }, |
|
3654 |
|
3655 closePopup: function () { |
|
3656 if (this._popup) { |
|
3657 this._popup._close(); |
|
3658 } |
|
3659 return this; |
|
3660 }, |
|
3661 |
|
3662 bindPopup: function (content, options) { |
|
3663 var anchor = L.point(this.options.icon.options.popupAnchor) || new L.Point(0, 0); |
|
3664 |
|
3665 anchor = anchor.add(L.Popup.prototype.options.offset); |
|
3666 |
|
3667 if (options && options.offset) { |
|
3668 anchor = anchor.add(options.offset); |
|
3669 } |
|
3670 |
|
3671 options = L.extend({offset: anchor}, options); |
|
3672 |
|
3673 if (!this._popup) { |
|
3674 this |
|
3675 .on('click', this.openPopup, this) |
|
3676 .on('remove', this.closePopup, this) |
|
3677 .on('move', this._movePopup, this); |
|
3678 } |
|
3679 |
|
3680 this._popup = new L.Popup(options, this) |
|
3681 .setContent(content); |
|
3682 |
|
3683 return this; |
|
3684 }, |
|
3685 |
|
3686 unbindPopup: function () { |
|
3687 if (this._popup) { |
|
3688 this._popup = null; |
|
3689 this |
|
3690 .off('click', this.openPopup) |
|
3691 .off('remove', this.closePopup) |
|
3692 .off('move', this._movePopup); |
|
3693 } |
|
3694 return this; |
|
3695 }, |
|
3696 |
|
3697 _movePopup: function (e) { |
|
3698 this._popup.setLatLng(e.latlng); |
|
3699 } |
|
3700 }); |
|
3701 |
|
3702 |
|
3703 /* |
|
3704 * Adds popup-related methods to L.Map. |
|
3705 */ |
|
3706 |
|
3707 L.Map.include({ |
|
3708 openPopup: function (popup) { |
|
3709 this.closePopup(); |
|
3710 |
|
3711 this._popup = popup; |
|
3712 |
|
3713 return this |
|
3714 .addLayer(popup) |
|
3715 .fire('popupopen', {popup: this._popup}); |
|
3716 }, |
|
3717 |
|
3718 closePopup: function () { |
|
3719 if (this._popup) { |
|
3720 this._popup._close(); |
|
3721 } |
|
3722 return this; |
|
3723 } |
|
3724 }); |
|
3725 |
|
3726 |
|
3727 /* |
|
3728 * L.LayerGroup is a class to combine several layers into one so that |
|
3729 * you can manipulate the group (e.g. add/remove it) as one layer. |
|
3730 */ |
|
3731 |
|
3732 L.LayerGroup = L.Class.extend({ |
|
3733 initialize: function (layers) { |
|
3734 this._layers = {}; |
|
3735 |
|
3736 var i, len; |
|
3737 |
|
3738 if (layers) { |
|
3739 for (i = 0, len = layers.length; i < len; i++) { |
|
3740 this.addLayer(layers[i]); |
|
3741 } |
|
3742 } |
|
3743 }, |
|
3744 |
|
3745 addLayer: function (layer) { |
|
3746 var id = L.stamp(layer); |
|
3747 |
|
3748 this._layers[id] = layer; |
|
3749 |
|
3750 if (this._map) { |
|
3751 this._map.addLayer(layer); |
|
3752 } |
|
3753 |
|
3754 return this; |
|
3755 }, |
|
3756 |
|
3757 removeLayer: function (layer) { |
|
3758 var id = L.stamp(layer); |
|
3759 |
|
3760 delete this._layers[id]; |
|
3761 |
|
3762 if (this._map) { |
|
3763 this._map.removeLayer(layer); |
|
3764 } |
|
3765 |
|
3766 return this; |
|
3767 }, |
|
3768 |
|
3769 clearLayers: function () { |
|
3770 this.eachLayer(this.removeLayer, this); |
|
3771 return this; |
|
3772 }, |
|
3773 |
|
3774 invoke: function (methodName) { |
|
3775 var args = Array.prototype.slice.call(arguments, 1), |
|
3776 i, layer; |
|
3777 |
|
3778 for (i in this._layers) { |
|
3779 if (this._layers.hasOwnProperty(i)) { |
|
3780 layer = this._layers[i]; |
|
3781 |
|
3782 if (layer[methodName]) { |
|
3783 layer[methodName].apply(layer, args); |
|
3784 } |
|
3785 } |
|
3786 } |
|
3787 |
|
3788 return this; |
|
3789 }, |
|
3790 |
|
3791 onAdd: function (map) { |
|
3792 this._map = map; |
|
3793 this.eachLayer(map.addLayer, map); |
|
3794 }, |
|
3795 |
|
3796 onRemove: function (map) { |
|
3797 this.eachLayer(map.removeLayer, map); |
|
3798 this._map = null; |
|
3799 }, |
|
3800 |
|
3801 addTo: function (map) { |
|
3802 map.addLayer(this); |
|
3803 return this; |
|
3804 }, |
|
3805 |
|
3806 eachLayer: function (method, context) { |
|
3807 for (var i in this._layers) { |
|
3808 if (this._layers.hasOwnProperty(i)) { |
|
3809 method.call(context, this._layers[i]); |
|
3810 } |
|
3811 } |
|
3812 }, |
|
3813 |
|
3814 setZIndex: function (zIndex) { |
|
3815 return this.invoke('setZIndex', zIndex); |
|
3816 } |
|
3817 }); |
|
3818 |
|
3819 L.layerGroup = function (layers) { |
|
3820 return new L.LayerGroup(layers); |
|
3821 }; |
|
3822 |
|
3823 |
|
3824 /* |
|
3825 * L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods |
|
3826 * shared between a group of interactive layers (like vectors or markers). |
|
3827 */ |
|
3828 |
|
3829 L.FeatureGroup = L.LayerGroup.extend({ |
|
3830 includes: L.Mixin.Events, |
|
3831 |
|
3832 statics: { |
|
3833 EVENTS: 'click dblclick mouseover mouseout mousemove contextmenu' |
|
3834 }, |
|
3835 |
|
3836 addLayer: function (layer) { |
|
3837 if (this._layers[L.stamp(layer)]) { |
|
3838 return this; |
|
3839 } |
|
3840 |
|
3841 layer.on(L.FeatureGroup.EVENTS, this._propagateEvent, this); |
|
3842 |
|
3843 L.LayerGroup.prototype.addLayer.call(this, layer); |
|
3844 |
|
3845 if (this._popupContent && layer.bindPopup) { |
|
3846 layer.bindPopup(this._popupContent, this._popupOptions); |
|
3847 } |
|
3848 |
|
3849 return this.fire('layeradd', {layer: layer}); |
|
3850 }, |
|
3851 |
|
3852 removeLayer: function (layer) { |
|
3853 layer.off(L.FeatureGroup.EVENTS, this._propagateEvent, this); |
|
3854 |
|
3855 L.LayerGroup.prototype.removeLayer.call(this, layer); |
|
3856 |
|
3857 |
|
3858 if (this._popupContent) { |
|
3859 this.invoke('unbindPopup'); |
|
3860 } |
|
3861 |
|
3862 return this.fire('layerremove', {layer: layer}); |
|
3863 }, |
|
3864 |
|
3865 bindPopup: function (content, options) { |
|
3866 this._popupContent = content; |
|
3867 this._popupOptions = options; |
|
3868 return this.invoke('bindPopup', content, options); |
|
3869 }, |
|
3870 |
|
3871 setStyle: function (style) { |
|
3872 return this.invoke('setStyle', style); |
|
3873 }, |
|
3874 |
|
3875 bringToFront: function () { |
|
3876 return this.invoke('bringToFront'); |
|
3877 }, |
|
3878 |
|
3879 bringToBack: function () { |
|
3880 return this.invoke('bringToBack'); |
|
3881 }, |
|
3882 |
|
3883 getBounds: function () { |
|
3884 var bounds = new L.LatLngBounds(); |
|
3885 |
|
3886 this.eachLayer(function (layer) { |
|
3887 bounds.extend(layer instanceof L.Marker ? layer.getLatLng() : layer.getBounds()); |
|
3888 }); |
|
3889 |
|
3890 return bounds; |
|
3891 }, |
|
3892 |
|
3893 _propagateEvent: function (e) { |
|
3894 e.layer = e.target; |
|
3895 e.target = this; |
|
3896 |
|
3897 this.fire(e.type, e); |
|
3898 } |
|
3899 }); |
|
3900 |
|
3901 L.featureGroup = function (layers) { |
|
3902 return new L.FeatureGroup(layers); |
|
3903 }; |
|
3904 |
|
3905 |
|
3906 /* |
|
3907 * L.Path is a base class for rendering vector paths on a map. Inherited by Polyline, Circle, etc. |
|
3908 */ |
|
3909 |
|
3910 L.Path = L.Class.extend({ |
|
3911 includes: [L.Mixin.Events], |
|
3912 |
|
3913 statics: { |
|
3914 // how much to extend the clip area around the map view |
|
3915 // (relative to its size, e.g. 0.5 is half the screen in each direction) |
|
3916 // set it so that SVG element doesn't exceed 1280px (vectors flicker on dragend if it is) |
|
3917 CLIP_PADDING: L.Browser.mobile ? |
|
3918 Math.max(0, Math.min(0.5, |
|
3919 (1280 / Math.max(window.innerWidth, window.innerHeight) - 1) / 2)) : 0.5 |
|
3920 }, |
|
3921 |
|
3922 options: { |
|
3923 stroke: true, |
|
3924 color: '#0033ff', |
|
3925 dashArray: null, |
|
3926 weight: 5, |
|
3927 opacity: 0.5, |
|
3928 |
|
3929 fill: false, |
|
3930 fillColor: null, //same as color by default |
|
3931 fillOpacity: 0.2, |
|
3932 |
|
3933 clickable: true |
|
3934 }, |
|
3935 |
|
3936 initialize: function (options) { |
|
3937 L.setOptions(this, options); |
|
3938 }, |
|
3939 |
|
3940 onAdd: function (map) { |
|
3941 this._map = map; |
|
3942 |
|
3943 if (!this._container) { |
|
3944 this._initElements(); |
|
3945 this._initEvents(); |
|
3946 } |
|
3947 |
|
3948 this.projectLatlngs(); |
|
3949 this._updatePath(); |
|
3950 |
|
3951 if (this._container) { |
|
3952 this._map._pathRoot.appendChild(this._container); |
|
3953 } |
|
3954 |
|
3955 this.fire('add'); |
|
3956 |
|
3957 map.on({ |
|
3958 'viewreset': this.projectLatlngs, |
|
3959 'moveend': this._updatePath |
|
3960 }, this); |
|
3961 }, |
|
3962 |
|
3963 addTo: function (map) { |
|
3964 map.addLayer(this); |
|
3965 return this; |
|
3966 }, |
|
3967 |
|
3968 onRemove: function (map) { |
|
3969 map._pathRoot.removeChild(this._container); |
|
3970 |
|
3971 // Need to fire remove event before we set _map to null as the event hooks might need the object |
|
3972 this.fire('remove'); |
|
3973 this._map = null; |
|
3974 |
|
3975 if (L.Browser.vml) { |
|
3976 this._container = null; |
|
3977 this._stroke = null; |
|
3978 this._fill = null; |
|
3979 } |
|
3980 |
|
3981 map.off({ |
|
3982 'viewreset': this.projectLatlngs, |
|
3983 'moveend': this._updatePath |
|
3984 }, this); |
|
3985 }, |
|
3986 |
|
3987 projectLatlngs: function () { |
|
3988 // do all projection stuff here |
|
3989 }, |
|
3990 |
|
3991 setStyle: function (style) { |
|
3992 L.setOptions(this, style); |
|
3993 |
|
3994 if (this._container) { |
|
3995 this._updateStyle(); |
|
3996 } |
|
3997 |
|
3998 return this; |
|
3999 }, |
|
4000 |
|
4001 redraw: function () { |
|
4002 if (this._map) { |
|
4003 this.projectLatlngs(); |
|
4004 this._updatePath(); |
|
4005 } |
|
4006 return this; |
|
4007 } |
|
4008 }); |
|
4009 |
|
4010 L.Map.include({ |
|
4011 _updatePathViewport: function () { |
|
4012 var p = L.Path.CLIP_PADDING, |
|
4013 size = this.getSize(), |
|
4014 panePos = L.DomUtil.getPosition(this._mapPane), |
|
4015 min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)._round()), |
|
4016 max = min.add(size.multiplyBy(1 + p * 2)._round()); |
|
4017 |
|
4018 this._pathViewport = new L.Bounds(min, max); |
|
4019 } |
|
4020 }); |
|
4021 |
|
4022 |
|
4023 /* |
|
4024 * Extends L.Path with SVG-specific rendering code. |
|
4025 */ |
|
4026 |
|
4027 L.Path.SVG_NS = 'http://www.w3.org/2000/svg'; |
|
4028 |
|
4029 L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect); |
|
4030 |
|
4031 L.Path = L.Path.extend({ |
|
4032 statics: { |
|
4033 SVG: L.Browser.svg |
|
4034 }, |
|
4035 |
|
4036 bringToFront: function () { |
|
4037 var root = this._map._pathRoot, |
|
4038 path = this._container; |
|
4039 |
|
4040 if (path && root.lastChild !== path) { |
|
4041 root.appendChild(path); |
|
4042 } |
|
4043 return this; |
|
4044 }, |
|
4045 |
|
4046 bringToBack: function () { |
|
4047 var root = this._map._pathRoot, |
|
4048 path = this._container, |
|
4049 first = root.firstChild; |
|
4050 |
|
4051 if (path && first !== path) { |
|
4052 root.insertBefore(path, first); |
|
4053 } |
|
4054 return this; |
|
4055 }, |
|
4056 |
|
4057 getPathString: function () { |
|
4058 // form path string here |
|
4059 }, |
|
4060 |
|
4061 _createElement: function (name) { |
|
4062 return document.createElementNS(L.Path.SVG_NS, name); |
|
4063 }, |
|
4064 |
|
4065 _initElements: function () { |
|
4066 this._map._initPathRoot(); |
|
4067 this._initPath(); |
|
4068 this._initStyle(); |
|
4069 }, |
|
4070 |
|
4071 _initPath: function () { |
|
4072 this._container = this._createElement('g'); |
|
4073 |
|
4074 this._path = this._createElement('path'); |
|
4075 this._container.appendChild(this._path); |
|
4076 }, |
|
4077 |
|
4078 _initStyle: function () { |
|
4079 if (this.options.stroke) { |
|
4080 this._path.setAttribute('stroke-linejoin', 'round'); |
|
4081 this._path.setAttribute('stroke-linecap', 'round'); |
|
4082 } |
|
4083 if (this.options.fill) { |
|
4084 this._path.setAttribute('fill-rule', 'evenodd'); |
|
4085 } |
|
4086 this._updateStyle(); |
|
4087 }, |
|
4088 |
|
4089 _updateStyle: function () { |
|
4090 if (this.options.stroke) { |
|
4091 this._path.setAttribute('stroke', this.options.color); |
|
4092 this._path.setAttribute('stroke-opacity', this.options.opacity); |
|
4093 this._path.setAttribute('stroke-width', this.options.weight); |
|
4094 if (this.options.dashArray) { |
|
4095 this._path.setAttribute('stroke-dasharray', this.options.dashArray); |
|
4096 } else { |
|
4097 this._path.removeAttribute('stroke-dasharray'); |
|
4098 } |
|
4099 } else { |
|
4100 this._path.setAttribute('stroke', 'none'); |
|
4101 } |
|
4102 if (this.options.fill) { |
|
4103 this._path.setAttribute('fill', this.options.fillColor || this.options.color); |
|
4104 this._path.setAttribute('fill-opacity', this.options.fillOpacity); |
|
4105 } else { |
|
4106 this._path.setAttribute('fill', 'none'); |
|
4107 } |
|
4108 }, |
|
4109 |
|
4110 _updatePath: function () { |
|
4111 var str = this.getPathString(); |
|
4112 if (!str) { |
|
4113 // fix webkit empty string parsing bug |
|
4114 str = 'M0 0'; |
|
4115 } |
|
4116 this._path.setAttribute('d', str); |
|
4117 }, |
|
4118 |
|
4119 // TODO remove duplication with L.Map |
|
4120 _initEvents: function () { |
|
4121 if (this.options.clickable) { |
|
4122 if (L.Browser.svg || !L.Browser.vml) { |
|
4123 this._path.setAttribute('class', 'leaflet-clickable'); |
|
4124 } |
|
4125 |
|
4126 L.DomEvent.on(this._container, 'click', this._onMouseClick, this); |
|
4127 |
|
4128 var events = ['dblclick', 'mousedown', 'mouseover', |
|
4129 'mouseout', 'mousemove', 'contextmenu']; |
|
4130 for (var i = 0; i < events.length; i++) { |
|
4131 L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this); |
|
4132 } |
|
4133 } |
|
4134 }, |
|
4135 |
|
4136 _onMouseClick: function (e) { |
|
4137 if (this._map.dragging && this._map.dragging.moved()) { return; } |
|
4138 |
|
4139 this._fireMouseEvent(e); |
|
4140 }, |
|
4141 |
|
4142 _fireMouseEvent: function (e) { |
|
4143 if (!this.hasEventListeners(e.type)) { return; } |
|
4144 |
|
4145 var map = this._map, |
|
4146 containerPoint = map.mouseEventToContainerPoint(e), |
|
4147 layerPoint = map.containerPointToLayerPoint(containerPoint), |
|
4148 latlng = map.layerPointToLatLng(layerPoint); |
|
4149 |
|
4150 this.fire(e.type, { |
|
4151 latlng: latlng, |
|
4152 layerPoint: layerPoint, |
|
4153 containerPoint: containerPoint, |
|
4154 originalEvent: e |
|
4155 }); |
|
4156 |
|
4157 if (e.type === 'contextmenu') { |
|
4158 L.DomEvent.preventDefault(e); |
|
4159 } |
|
4160 if (e.type !== 'mousemove') { |
|
4161 L.DomEvent.stopPropagation(e); |
|
4162 } |
|
4163 } |
|
4164 }); |
|
4165 |
|
4166 L.Map.include({ |
|
4167 _initPathRoot: function () { |
|
4168 if (!this._pathRoot) { |
|
4169 this._pathRoot = L.Path.prototype._createElement('svg'); |
|
4170 this._panes.overlayPane.appendChild(this._pathRoot); |
|
4171 |
|
4172 if (this.options.zoomAnimation && L.Browser.any3d) { |
|
4173 this._pathRoot.setAttribute('class', ' leaflet-zoom-animated'); |
|
4174 |
|
4175 this.on({ |
|
4176 'zoomanim': this._animatePathZoom, |
|
4177 'zoomend': this._endPathZoom |
|
4178 }); |
|
4179 } else { |
|
4180 this._pathRoot.setAttribute('class', ' leaflet-zoom-hide'); |
|
4181 } |
|
4182 |
|
4183 this.on('moveend', this._updateSvgViewport); |
|
4184 this._updateSvgViewport(); |
|
4185 } |
|
4186 }, |
|
4187 |
|
4188 _animatePathZoom: function (e) { |
|
4189 var scale = this.getZoomScale(e.zoom), |
|
4190 offset = this._getCenterOffset(e.center)._multiplyBy(-scale)._add(this._pathViewport.min); |
|
4191 |
|
4192 this._pathRoot.style[L.DomUtil.TRANSFORM] = |
|
4193 L.DomUtil.getTranslateString(offset) + ' scale(' + scale + ') '; |
|
4194 |
|
4195 this._pathZooming = true; |
|
4196 }, |
|
4197 |
|
4198 _endPathZoom: function () { |
|
4199 this._pathZooming = false; |
|
4200 }, |
|
4201 |
|
4202 _updateSvgViewport: function () { |
|
4203 |
|
4204 if (this._pathZooming) { |
|
4205 // Do not update SVGs while a zoom animation is going on otherwise the animation will break. |
|
4206 // When the zoom animation ends we will be updated again anyway |
|
4207 // This fixes the case where you do a momentum move and zoom while the move is still ongoing. |
|
4208 return; |
|
4209 } |
|
4210 |
|
4211 this._updatePathViewport(); |
|
4212 |
|
4213 var vp = this._pathViewport, |
|
4214 min = vp.min, |
|
4215 max = vp.max, |
|
4216 width = max.x - min.x, |
|
4217 height = max.y - min.y, |
|
4218 root = this._pathRoot, |
|
4219 pane = this._panes.overlayPane; |
|
4220 |
|
4221 // Hack to make flicker on drag end on mobile webkit less irritating |
|
4222 if (L.Browser.mobileWebkit) { |
|
4223 pane.removeChild(root); |
|
4224 } |
|
4225 |
|
4226 L.DomUtil.setPosition(root, min); |
|
4227 root.setAttribute('width', width); |
|
4228 root.setAttribute('height', height); |
|
4229 root.setAttribute('viewBox', [min.x, min.y, width, height].join(' ')); |
|
4230 |
|
4231 if (L.Browser.mobileWebkit) { |
|
4232 pane.appendChild(root); |
|
4233 } |
|
4234 } |
|
4235 }); |
|
4236 |
|
4237 |
|
4238 /* |
|
4239 * Popup extension to L.Path (polylines, polygons, circles), adding popup-related methods. |
|
4240 */ |
|
4241 |
|
4242 L.Path.include({ |
|
4243 |
|
4244 bindPopup: function (content, options) { |
|
4245 |
|
4246 if (!this._popup || options) { |
|
4247 this._popup = new L.Popup(options, this); |
|
4248 } |
|
4249 |
|
4250 this._popup.setContent(content); |
|
4251 |
|
4252 if (!this._popupHandlersAdded) { |
|
4253 this |
|
4254 .on('click', this._openPopup, this) |
|
4255 .on('remove', this.closePopup, this); |
|
4256 |
|
4257 this._popupHandlersAdded = true; |
|
4258 } |
|
4259 |
|
4260 return this; |
|
4261 }, |
|
4262 |
|
4263 unbindPopup: function () { |
|
4264 if (this._popup) { |
|
4265 this._popup = null; |
|
4266 this |
|
4267 .off('click', this._openPopup) |
|
4268 .off('remove', this.closePopup); |
|
4269 |
|
4270 this._popupHandlersAdded = false; |
|
4271 } |
|
4272 return this; |
|
4273 }, |
|
4274 |
|
4275 openPopup: function (latlng) { |
|
4276 |
|
4277 if (this._popup) { |
|
4278 // open the popup from one of the path's points if not specified |
|
4279 latlng = latlng || this._latlng || |
|
4280 this._latlngs[Math.floor(this._latlngs.length / 2)]; |
|
4281 |
|
4282 this._openPopup({latlng: latlng}); |
|
4283 } |
|
4284 |
|
4285 return this; |
|
4286 }, |
|
4287 |
|
4288 closePopup: function () { |
|
4289 if (this._popup) { |
|
4290 this._popup._close(); |
|
4291 } |
|
4292 return this; |
|
4293 }, |
|
4294 |
|
4295 _openPopup: function (e) { |
|
4296 this._popup.setLatLng(e.latlng); |
|
4297 this._map.openPopup(this._popup); |
|
4298 } |
|
4299 }); |
|
4300 |
|
4301 |
|
4302 /* |
|
4303 * Vector rendering for IE6-8 through VML. |
|
4304 * Thanks to Dmitry Baranovsky and his Raphael library for inspiration! |
|
4305 */ |
|
4306 |
|
4307 L.Browser.vml = !L.Browser.svg && (function () { |
|
4308 try { |
|
4309 var div = document.createElement('div'); |
|
4310 div.innerHTML = '<v:shape adj="1"/>'; |
|
4311 |
|
4312 var shape = div.firstChild; |
|
4313 shape.style.behavior = 'url(#default#VML)'; |
|
4314 |
|
4315 return shape && (typeof shape.adj === 'object'); |
|
4316 |
|
4317 } catch (e) { |
|
4318 return false; |
|
4319 } |
|
4320 }()); |
|
4321 |
|
4322 L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({ |
|
4323 statics: { |
|
4324 VML: true, |
|
4325 CLIP_PADDING: 0.02 |
|
4326 }, |
|
4327 |
|
4328 _createElement: (function () { |
|
4329 try { |
|
4330 document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml'); |
|
4331 return function (name) { |
|
4332 return document.createElement('<lvml:' + name + ' class="lvml">'); |
|
4333 }; |
|
4334 } catch (e) { |
|
4335 return function (name) { |
|
4336 return document.createElement( |
|
4337 '<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">'); |
|
4338 }; |
|
4339 } |
|
4340 }()), |
|
4341 |
|
4342 _initPath: function () { |
|
4343 var container = this._container = this._createElement('shape'); |
|
4344 L.DomUtil.addClass(container, 'leaflet-vml-shape'); |
|
4345 if (this.options.clickable) { |
|
4346 L.DomUtil.addClass(container, 'leaflet-clickable'); |
|
4347 } |
|
4348 container.coordsize = '1 1'; |
|
4349 |
|
4350 this._path = this._createElement('path'); |
|
4351 container.appendChild(this._path); |
|
4352 |
|
4353 this._map._pathRoot.appendChild(container); |
|
4354 }, |
|
4355 |
|
4356 _initStyle: function () { |
|
4357 this._updateStyle(); |
|
4358 }, |
|
4359 |
|
4360 _updateStyle: function () { |
|
4361 var stroke = this._stroke, |
|
4362 fill = this._fill, |
|
4363 options = this.options, |
|
4364 container = this._container; |
|
4365 |
|
4366 container.stroked = options.stroke; |
|
4367 container.filled = options.fill; |
|
4368 |
|
4369 if (options.stroke) { |
|
4370 if (!stroke) { |
|
4371 stroke = this._stroke = this._createElement('stroke'); |
|
4372 stroke.endcap = 'round'; |
|
4373 container.appendChild(stroke); |
|
4374 } |
|
4375 stroke.weight = options.weight + 'px'; |
|
4376 stroke.color = options.color; |
|
4377 stroke.opacity = options.opacity; |
|
4378 |
|
4379 if (options.dashArray) { |
|
4380 stroke.dashStyle = options.dashArray instanceof Array ? |
|
4381 options.dashArray.join(' ') : |
|
4382 options.dashArray.replace(/ *, */g, ' '); |
|
4383 } else { |
|
4384 stroke.dashStyle = ''; |
|
4385 } |
|
4386 |
|
4387 } else if (stroke) { |
|
4388 container.removeChild(stroke); |
|
4389 this._stroke = null; |
|
4390 } |
|
4391 |
|
4392 if (options.fill) { |
|
4393 if (!fill) { |
|
4394 fill = this._fill = this._createElement('fill'); |
|
4395 container.appendChild(fill); |
|
4396 } |
|
4397 fill.color = options.fillColor || options.color; |
|
4398 fill.opacity = options.fillOpacity; |
|
4399 |
|
4400 } else if (fill) { |
|
4401 container.removeChild(fill); |
|
4402 this._fill = null; |
|
4403 } |
|
4404 }, |
|
4405 |
|
4406 _updatePath: function () { |
|
4407 var style = this._container.style; |
|
4408 |
|
4409 style.display = 'none'; |
|
4410 this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug |
|
4411 style.display = ''; |
|
4412 } |
|
4413 }); |
|
4414 |
|
4415 L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : { |
|
4416 _initPathRoot: function () { |
|
4417 if (this._pathRoot) { return; } |
|
4418 |
|
4419 var root = this._pathRoot = document.createElement('div'); |
|
4420 root.className = 'leaflet-vml-container'; |
|
4421 this._panes.overlayPane.appendChild(root); |
|
4422 |
|
4423 this.on('moveend', this._updatePathViewport); |
|
4424 this._updatePathViewport(); |
|
4425 } |
|
4426 }); |
|
4427 |
|
4428 |
|
4429 /* |
|
4430 * Vector rendering for all browsers that support canvas. |
|
4431 */ |
|
4432 |
|
4433 L.Browser.canvas = (function () { |
|
4434 return !!document.createElement('canvas').getContext; |
|
4435 }()); |
|
4436 |
|
4437 L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({ |
|
4438 statics: { |
|
4439 //CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value |
|
4440 CANVAS: true, |
|
4441 SVG: false |
|
4442 }, |
|
4443 |
|
4444 redraw: function () { |
|
4445 if (this._map) { |
|
4446 this.projectLatlngs(); |
|
4447 this._requestUpdate(); |
|
4448 } |
|
4449 return this; |
|
4450 }, |
|
4451 |
|
4452 setStyle: function (style) { |
|
4453 L.setOptions(this, style); |
|
4454 |
|
4455 if (this._map) { |
|
4456 this._updateStyle(); |
|
4457 this._requestUpdate(); |
|
4458 } |
|
4459 return this; |
|
4460 }, |
|
4461 |
|
4462 onRemove: function (map) { |
|
4463 map |
|
4464 .off('viewreset', this.projectLatlngs, this) |
|
4465 .off('moveend', this._updatePath, this); |
|
4466 |
|
4467 if (this.options.clickable) { |
|
4468 this._map.off('click', this._onClick, this); |
|
4469 } |
|
4470 |
|
4471 this._requestUpdate(); |
|
4472 |
|
4473 this._map = null; |
|
4474 }, |
|
4475 |
|
4476 _requestUpdate: function () { |
|
4477 if (this._map && !L.Path._updateRequest) { |
|
4478 L.Path._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map); |
|
4479 } |
|
4480 }, |
|
4481 |
|
4482 _fireMapMoveEnd: function () { |
|
4483 L.Path._updateRequest = null; |
|
4484 this.fire('moveend'); |
|
4485 }, |
|
4486 |
|
4487 _initElements: function () { |
|
4488 this._map._initPathRoot(); |
|
4489 this._ctx = this._map._canvasCtx; |
|
4490 }, |
|
4491 |
|
4492 _updateStyle: function () { |
|
4493 var options = this.options; |
|
4494 |
|
4495 if (options.stroke) { |
|
4496 this._ctx.lineWidth = options.weight; |
|
4497 this._ctx.strokeStyle = options.color; |
|
4498 } |
|
4499 if (options.fill) { |
|
4500 this._ctx.fillStyle = options.fillColor || options.color; |
|
4501 } |
|
4502 }, |
|
4503 |
|
4504 _drawPath: function () { |
|
4505 var i, j, len, len2, point, drawMethod; |
|
4506 |
|
4507 this._ctx.beginPath(); |
|
4508 |
|
4509 for (i = 0, len = this._parts.length; i < len; i++) { |
|
4510 for (j = 0, len2 = this._parts[i].length; j < len2; j++) { |
|
4511 point = this._parts[i][j]; |
|
4512 drawMethod = (j === 0 ? 'move' : 'line') + 'To'; |
|
4513 |
|
4514 this._ctx[drawMethod](point.x, point.y); |
|
4515 } |
|
4516 // TODO refactor ugly hack |
|
4517 if (this instanceof L.Polygon) { |
|
4518 this._ctx.closePath(); |
|
4519 } |
|
4520 } |
|
4521 }, |
|
4522 |
|
4523 _checkIfEmpty: function () { |
|
4524 return !this._parts.length; |
|
4525 }, |
|
4526 |
|
4527 _updatePath: function () { |
|
4528 if (this._checkIfEmpty()) { return; } |
|
4529 |
|
4530 var ctx = this._ctx, |
|
4531 options = this.options; |
|
4532 |
|
4533 this._drawPath(); |
|
4534 ctx.save(); |
|
4535 this._updateStyle(); |
|
4536 |
|
4537 if (options.fill) { |
|
4538 ctx.globalAlpha = options.fillOpacity; |
|
4539 ctx.fill(); |
|
4540 } |
|
4541 |
|
4542 if (options.stroke) { |
|
4543 ctx.globalAlpha = options.opacity; |
|
4544 ctx.stroke(); |
|
4545 } |
|
4546 |
|
4547 ctx.restore(); |
|
4548 |
|
4549 // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature |
|
4550 }, |
|
4551 |
|
4552 _initEvents: function () { |
|
4553 if (this.options.clickable) { |
|
4554 // TODO hand cursor |
|
4555 // TODO mouseover, mouseout, dblclick |
|
4556 this._map.on('click', this._onClick, this); |
|
4557 } |
|
4558 }, |
|
4559 |
|
4560 _onClick: function (e) { |
|
4561 if (this._containsPoint(e.layerPoint)) { |
|
4562 this.fire('click', { |
|
4563 latlng: e.latlng, |
|
4564 layerPoint: e.layerPoint, |
|
4565 containerPoint: e.containerPoint, |
|
4566 originalEvent: e |
|
4567 }); |
|
4568 } |
|
4569 } |
|
4570 }); |
|
4571 |
|
4572 L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : { |
|
4573 _initPathRoot: function () { |
|
4574 var root = this._pathRoot, |
|
4575 ctx; |
|
4576 |
|
4577 if (!root) { |
|
4578 root = this._pathRoot = document.createElement("canvas"); |
|
4579 root.style.position = 'absolute'; |
|
4580 ctx = this._canvasCtx = root.getContext('2d'); |
|
4581 |
|
4582 ctx.lineCap = "round"; |
|
4583 ctx.lineJoin = "round"; |
|
4584 |
|
4585 this._panes.overlayPane.appendChild(root); |
|
4586 |
|
4587 if (this.options.zoomAnimation) { |
|
4588 this._pathRoot.className = 'leaflet-zoom-animated'; |
|
4589 this.on('zoomanim', this._animatePathZoom); |
|
4590 this.on('zoomend', this._endPathZoom); |
|
4591 } |
|
4592 this.on('moveend', this._updateCanvasViewport); |
|
4593 this._updateCanvasViewport(); |
|
4594 } |
|
4595 }, |
|
4596 |
|
4597 _updateCanvasViewport: function () { |
|
4598 // don't redraw while zooming. See _updateSvgViewport for more details |
|
4599 if (this._pathZooming) { return; } |
|
4600 this._updatePathViewport(); |
|
4601 |
|
4602 var vp = this._pathViewport, |
|
4603 min = vp.min, |
|
4604 size = vp.max.subtract(min), |
|
4605 root = this._pathRoot; |
|
4606 |
|
4607 //TODO check if this works properly on mobile webkit |
|
4608 L.DomUtil.setPosition(root, min); |
|
4609 root.width = size.x; |
|
4610 root.height = size.y; |
|
4611 root.getContext('2d').translate(-min.x, -min.y); |
|
4612 } |
|
4613 }); |
|
4614 |
|
4615 |
|
4616 /* |
|
4617 * L.LineUtil contains different utility functions for line segments |
|
4618 * and polylines (clipping, simplification, distances, etc.) |
|
4619 */ |
|
4620 |
|
4621 /*jshint bitwise:false */ // allow bitwise oprations for this file |
|
4622 |
|
4623 L.LineUtil = { |
|
4624 |
|
4625 // Simplify polyline with vertex reduction and Douglas-Peucker simplification. |
|
4626 // Improves rendering performance dramatically by lessening the number of points to draw. |
|
4627 |
|
4628 simplify: function (/*Point[]*/ points, /*Number*/ tolerance) { |
|
4629 if (!tolerance || !points.length) { |
|
4630 return points.slice(); |
|
4631 } |
|
4632 |
|
4633 var sqTolerance = tolerance * tolerance; |
|
4634 |
|
4635 // stage 1: vertex reduction |
|
4636 points = this._reducePoints(points, sqTolerance); |
|
4637 |
|
4638 // stage 2: Douglas-Peucker simplification |
|
4639 points = this._simplifyDP(points, sqTolerance); |
|
4640 |
|
4641 return points; |
|
4642 }, |
|
4643 |
|
4644 // distance from a point to a segment between two points |
|
4645 pointToSegmentDistance: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) { |
|
4646 return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true)); |
|
4647 }, |
|
4648 |
|
4649 closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) { |
|
4650 return this._sqClosestPointOnSegment(p, p1, p2); |
|
4651 }, |
|
4652 |
|
4653 // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm |
|
4654 _simplifyDP: function (points, sqTolerance) { |
|
4655 |
|
4656 var len = points.length, |
|
4657 ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array, |
|
4658 markers = new ArrayConstructor(len); |
|
4659 |
|
4660 markers[0] = markers[len - 1] = 1; |
|
4661 |
|
4662 this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1); |
|
4663 |
|
4664 var i, |
|
4665 newPoints = []; |
|
4666 |
|
4667 for (i = 0; i < len; i++) { |
|
4668 if (markers[i]) { |
|
4669 newPoints.push(points[i]); |
|
4670 } |
|
4671 } |
|
4672 |
|
4673 return newPoints; |
|
4674 }, |
|
4675 |
|
4676 _simplifyDPStep: function (points, markers, sqTolerance, first, last) { |
|
4677 |
|
4678 var maxSqDist = 0, |
|
4679 index, i, sqDist; |
|
4680 |
|
4681 for (i = first + 1; i <= last - 1; i++) { |
|
4682 sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true); |
|
4683 |
|
4684 if (sqDist > maxSqDist) { |
|
4685 index = i; |
|
4686 maxSqDist = sqDist; |
|
4687 } |
|
4688 } |
|
4689 |
|
4690 if (maxSqDist > sqTolerance) { |
|
4691 markers[index] = 1; |
|
4692 |
|
4693 this._simplifyDPStep(points, markers, sqTolerance, first, index); |
|
4694 this._simplifyDPStep(points, markers, sqTolerance, index, last); |
|
4695 } |
|
4696 }, |
|
4697 |
|
4698 // reduce points that are too close to each other to a single point |
|
4699 _reducePoints: function (points, sqTolerance) { |
|
4700 var reducedPoints = [points[0]]; |
|
4701 |
|
4702 for (var i = 1, prev = 0, len = points.length; i < len; i++) { |
|
4703 if (this._sqDist(points[i], points[prev]) > sqTolerance) { |
|
4704 reducedPoints.push(points[i]); |
|
4705 prev = i; |
|
4706 } |
|
4707 } |
|
4708 if (prev < len - 1) { |
|
4709 reducedPoints.push(points[len - 1]); |
|
4710 } |
|
4711 return reducedPoints; |
|
4712 }, |
|
4713 |
|
4714 // Cohen-Sutherland line clipping algorithm. |
|
4715 // Used to avoid rendering parts of a polyline that are not currently visible. |
|
4716 |
|
4717 clipSegment: function (a, b, bounds, useLastCode) { |
|
4718 var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds), |
|
4719 codeB = this._getBitCode(b, bounds), |
|
4720 |
|
4721 codeOut, p, newCode; |
|
4722 |
|
4723 // save 2nd code to avoid calculating it on the next segment |
|
4724 this._lastCode = codeB; |
|
4725 |
|
4726 while (true) { |
|
4727 // if a,b is inside the clip window (trivial accept) |
|
4728 if (!(codeA | codeB)) { |
|
4729 return [a, b]; |
|
4730 // if a,b is outside the clip window (trivial reject) |
|
4731 } else if (codeA & codeB) { |
|
4732 return false; |
|
4733 // other cases |
|
4734 } else { |
|
4735 codeOut = codeA || codeB, |
|
4736 p = this._getEdgeIntersection(a, b, codeOut, bounds), |
|
4737 newCode = this._getBitCode(p, bounds); |
|
4738 |
|
4739 if (codeOut === codeA) { |
|
4740 a = p; |
|
4741 codeA = newCode; |
|
4742 } else { |
|
4743 b = p; |
|
4744 codeB = newCode; |
|
4745 } |
|
4746 } |
|
4747 } |
|
4748 }, |
|
4749 |
|
4750 _getEdgeIntersection: function (a, b, code, bounds) { |
|
4751 var dx = b.x - a.x, |
|
4752 dy = b.y - a.y, |
|
4753 min = bounds.min, |
|
4754 max = bounds.max; |
|
4755 |
|
4756 if (code & 8) { // top |
|
4757 return new L.Point(a.x + dx * (max.y - a.y) / dy, max.y); |
|
4758 } else if (code & 4) { // bottom |
|
4759 return new L.Point(a.x + dx * (min.y - a.y) / dy, min.y); |
|
4760 } else if (code & 2) { // right |
|
4761 return new L.Point(max.x, a.y + dy * (max.x - a.x) / dx); |
|
4762 } else if (code & 1) { // left |
|
4763 return new L.Point(min.x, a.y + dy * (min.x - a.x) / dx); |
|
4764 } |
|
4765 }, |
|
4766 |
|
4767 _getBitCode: function (/*Point*/ p, bounds) { |
|
4768 var code = 0; |
|
4769 |
|
4770 if (p.x < bounds.min.x) { // left |
|
4771 code |= 1; |
|
4772 } else if (p.x > bounds.max.x) { // right |
|
4773 code |= 2; |
|
4774 } |
|
4775 if (p.y < bounds.min.y) { // bottom |
|
4776 code |= 4; |
|
4777 } else if (p.y > bounds.max.y) { // top |
|
4778 code |= 8; |
|
4779 } |
|
4780 |
|
4781 return code; |
|
4782 }, |
|
4783 |
|
4784 // square distance (to avoid unnecessary Math.sqrt calls) |
|
4785 _sqDist: function (p1, p2) { |
|
4786 var dx = p2.x - p1.x, |
|
4787 dy = p2.y - p1.y; |
|
4788 return dx * dx + dy * dy; |
|
4789 }, |
|
4790 |
|
4791 // return closest point on segment or distance to that point |
|
4792 _sqClosestPointOnSegment: function (p, p1, p2, sqDist) { |
|
4793 var x = p1.x, |
|
4794 y = p1.y, |
|
4795 dx = p2.x - x, |
|
4796 dy = p2.y - y, |
|
4797 dot = dx * dx + dy * dy, |
|
4798 t; |
|
4799 |
|
4800 if (dot > 0) { |
|
4801 t = ((p.x - x) * dx + (p.y - y) * dy) / dot; |
|
4802 |
|
4803 if (t > 1) { |
|
4804 x = p2.x; |
|
4805 y = p2.y; |
|
4806 } else if (t > 0) { |
|
4807 x += dx * t; |
|
4808 y += dy * t; |
|
4809 } |
|
4810 } |
|
4811 |
|
4812 dx = p.x - x; |
|
4813 dy = p.y - y; |
|
4814 |
|
4815 return sqDist ? dx * dx + dy * dy : new L.Point(x, y); |
|
4816 } |
|
4817 }; |
|
4818 |
|
4819 |
|
4820 /* |
|
4821 * L.Polygon is used to display polylines on a map. |
|
4822 */ |
|
4823 |
|
4824 L.Polyline = L.Path.extend({ |
|
4825 initialize: function (latlngs, options) { |
|
4826 L.Path.prototype.initialize.call(this, options); |
|
4827 |
|
4828 this._latlngs = this._convertLatLngs(latlngs); |
|
4829 }, |
|
4830 |
|
4831 options: { |
|
4832 // how much to simplify the polyline on each zoom level |
|
4833 // more = better performance and smoother look, less = more accurate |
|
4834 smoothFactor: 1.0, |
|
4835 noClip: false |
|
4836 }, |
|
4837 |
|
4838 projectLatlngs: function () { |
|
4839 this._originalPoints = []; |
|
4840 |
|
4841 for (var i = 0, len = this._latlngs.length; i < len; i++) { |
|
4842 this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]); |
|
4843 } |
|
4844 }, |
|
4845 |
|
4846 getPathString: function () { |
|
4847 for (var i = 0, len = this._parts.length, str = ''; i < len; i++) { |
|
4848 str += this._getPathPartStr(this._parts[i]); |
|
4849 } |
|
4850 return str; |
|
4851 }, |
|
4852 |
|
4853 getLatLngs: function () { |
|
4854 return this._latlngs; |
|
4855 }, |
|
4856 |
|
4857 setLatLngs: function (latlngs) { |
|
4858 this._latlngs = this._convertLatLngs(latlngs); |
|
4859 return this.redraw(); |
|
4860 }, |
|
4861 |
|
4862 addLatLng: function (latlng) { |
|
4863 this._latlngs.push(L.latLng(latlng)); |
|
4864 return this.redraw(); |
|
4865 }, |
|
4866 |
|
4867 spliceLatLngs: function () { // (Number index, Number howMany) |
|
4868 var removed = [].splice.apply(this._latlngs, arguments); |
|
4869 this._convertLatLngs(this._latlngs); |
|
4870 this.redraw(); |
|
4871 return removed; |
|
4872 }, |
|
4873 |
|
4874 closestLayerPoint: function (p) { |
|
4875 var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null; |
|
4876 |
|
4877 for (var j = 0, jLen = parts.length; j < jLen; j++) { |
|
4878 var points = parts[j]; |
|
4879 for (var i = 1, len = points.length; i < len; i++) { |
|
4880 p1 = points[i - 1]; |
|
4881 p2 = points[i]; |
|
4882 var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true); |
|
4883 if (sqDist < minDistance) { |
|
4884 minDistance = sqDist; |
|
4885 minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2); |
|
4886 } |
|
4887 } |
|
4888 } |
|
4889 if (minPoint) { |
|
4890 minPoint.distance = Math.sqrt(minDistance); |
|
4891 } |
|
4892 return minPoint; |
|
4893 }, |
|
4894 |
|
4895 getBounds: function () { |
|
4896 var bounds = new L.LatLngBounds(), |
|
4897 latLngs = this.getLatLngs(), |
|
4898 i, len; |
|
4899 |
|
4900 for (i = 0, len = latLngs.length; i < len; i++) { |
|
4901 bounds.extend(latLngs[i]); |
|
4902 } |
|
4903 |
|
4904 return bounds; |
|
4905 }, |
|
4906 |
|
4907 _convertLatLngs: function (latlngs) { |
|
4908 var i, len; |
|
4909 for (i = 0, len = latlngs.length; i < len; i++) { |
|
4910 if (L.Util.isArray(latlngs[i]) && typeof latlngs[i][0] !== 'number') { |
|
4911 return; |
|
4912 } |
|
4913 latlngs[i] = L.latLng(latlngs[i]); |
|
4914 } |
|
4915 return latlngs; |
|
4916 }, |
|
4917 |
|
4918 _initEvents: function () { |
|
4919 L.Path.prototype._initEvents.call(this); |
|
4920 }, |
|
4921 |
|
4922 _getPathPartStr: function (points) { |
|
4923 var round = L.Path.VML; |
|
4924 |
|
4925 for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) { |
|
4926 p = points[j]; |
|
4927 if (round) { |
|
4928 p._round(); |
|
4929 } |
|
4930 str += (j ? 'L' : 'M') + p.x + ' ' + p.y; |
|
4931 } |
|
4932 return str; |
|
4933 }, |
|
4934 |
|
4935 _clipPoints: function () { |
|
4936 var points = this._originalPoints, |
|
4937 len = points.length, |
|
4938 i, k, segment; |
|
4939 |
|
4940 if (this.options.noClip) { |
|
4941 this._parts = [points]; |
|
4942 return; |
|
4943 } |
|
4944 |
|
4945 this._parts = []; |
|
4946 |
|
4947 var parts = this._parts, |
|
4948 vp = this._map._pathViewport, |
|
4949 lu = L.LineUtil; |
|
4950 |
|
4951 for (i = 0, k = 0; i < len - 1; i++) { |
|
4952 segment = lu.clipSegment(points[i], points[i + 1], vp, i); |
|
4953 if (!segment) { |
|
4954 continue; |
|
4955 } |
|
4956 |
|
4957 parts[k] = parts[k] || []; |
|
4958 parts[k].push(segment[0]); |
|
4959 |
|
4960 // if segment goes out of screen, or it's the last one, it's the end of the line part |
|
4961 if ((segment[1] !== points[i + 1]) || (i === len - 2)) { |
|
4962 parts[k].push(segment[1]); |
|
4963 k++; |
|
4964 } |
|
4965 } |
|
4966 }, |
|
4967 |
|
4968 // simplify each clipped part of the polyline |
|
4969 _simplifyPoints: function () { |
|
4970 var parts = this._parts, |
|
4971 lu = L.LineUtil; |
|
4972 |
|
4973 for (var i = 0, len = parts.length; i < len; i++) { |
|
4974 parts[i] = lu.simplify(parts[i], this.options.smoothFactor); |
|
4975 } |
|
4976 }, |
|
4977 |
|
4978 _updatePath: function () { |
|
4979 if (!this._map) { return; } |
|
4980 |
|
4981 this._clipPoints(); |
|
4982 this._simplifyPoints(); |
|
4983 |
|
4984 L.Path.prototype._updatePath.call(this); |
|
4985 } |
|
4986 }); |
|
4987 |
|
4988 L.polyline = function (latlngs, options) { |
|
4989 return new L.Polyline(latlngs, options); |
|
4990 }; |
|
4991 |
|
4992 |
|
4993 /* |
|
4994 * L.PolyUtil contains utility functions for polygons (clipping, etc.). |
|
4995 */ |
|
4996 |
|
4997 /*jshint bitwise:false */ // allow bitwise operations here |
|
4998 |
|
4999 L.PolyUtil = {}; |
|
5000 |
|
5001 /* |
|
5002 * Sutherland-Hodgeman polygon clipping algorithm. |
|
5003 * Used to avoid rendering parts of a polygon that are not currently visible. |
|
5004 */ |
|
5005 L.PolyUtil.clipPolygon = function (points, bounds) { |
|
5006 var clippedPoints, |
|
5007 edges = [1, 4, 2, 8], |
|
5008 i, j, k, |
|
5009 a, b, |
|
5010 len, edge, p, |
|
5011 lu = L.LineUtil; |
|
5012 |
|
5013 for (i = 0, len = points.length; i < len; i++) { |
|
5014 points[i]._code = lu._getBitCode(points[i], bounds); |
|
5015 } |
|
5016 |
|
5017 // for each edge (left, bottom, right, top) |
|
5018 for (k = 0; k < 4; k++) { |
|
5019 edge = edges[k]; |
|
5020 clippedPoints = []; |
|
5021 |
|
5022 for (i = 0, len = points.length, j = len - 1; i < len; j = i++) { |
|
5023 a = points[i]; |
|
5024 b = points[j]; |
|
5025 |
|
5026 // if a is inside the clip window |
|
5027 if (!(a._code & edge)) { |
|
5028 // if b is outside the clip window (a->b goes out of screen) |
|
5029 if (b._code & edge) { |
|
5030 p = lu._getEdgeIntersection(b, a, edge, bounds); |
|
5031 p._code = lu._getBitCode(p, bounds); |
|
5032 clippedPoints.push(p); |
|
5033 } |
|
5034 clippedPoints.push(a); |
|
5035 |
|
5036 // else if b is inside the clip window (a->b enters the screen) |
|
5037 } else if (!(b._code & edge)) { |
|
5038 p = lu._getEdgeIntersection(b, a, edge, bounds); |
|
5039 p._code = lu._getBitCode(p, bounds); |
|
5040 clippedPoints.push(p); |
|
5041 } |
|
5042 } |
|
5043 points = clippedPoints; |
|
5044 } |
|
5045 |
|
5046 return points; |
|
5047 }; |
|
5048 |
|
5049 |
|
5050 /* |
|
5051 * L.Polygon is used to display polygons on a map. |
|
5052 */ |
|
5053 |
|
5054 L.Polygon = L.Polyline.extend({ |
|
5055 options: { |
|
5056 fill: true |
|
5057 }, |
|
5058 |
|
5059 initialize: function (latlngs, options) { |
|
5060 L.Polyline.prototype.initialize.call(this, latlngs, options); |
|
5061 |
|
5062 if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) { |
|
5063 this._latlngs = this._convertLatLngs(latlngs[0]); |
|
5064 this._holes = latlngs.slice(1); |
|
5065 } |
|
5066 }, |
|
5067 |
|
5068 projectLatlngs: function () { |
|
5069 L.Polyline.prototype.projectLatlngs.call(this); |
|
5070 |
|
5071 // project polygon holes points |
|
5072 // TODO move this logic to Polyline to get rid of duplication |
|
5073 this._holePoints = []; |
|
5074 |
|
5075 if (!this._holes) { return; } |
|
5076 |
|
5077 var i, j, len, len2; |
|
5078 |
|
5079 for (i = 0, len = this._holes.length; i < len; i++) { |
|
5080 this._holePoints[i] = []; |
|
5081 |
|
5082 for (j = 0, len2 = this._holes[i].length; j < len2; j++) { |
|
5083 this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]); |
|
5084 } |
|
5085 } |
|
5086 }, |
|
5087 |
|
5088 _clipPoints: function () { |
|
5089 var points = this._originalPoints, |
|
5090 newParts = []; |
|
5091 |
|
5092 this._parts = [points].concat(this._holePoints); |
|
5093 |
|
5094 if (this.options.noClip) { return; } |
|
5095 |
|
5096 for (var i = 0, len = this._parts.length; i < len; i++) { |
|
5097 var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport); |
|
5098 if (clipped.length) { |
|
5099 newParts.push(clipped); |
|
5100 } |
|
5101 } |
|
5102 |
|
5103 this._parts = newParts; |
|
5104 }, |
|
5105 |
|
5106 _getPathPartStr: function (points) { |
|
5107 var str = L.Polyline.prototype._getPathPartStr.call(this, points); |
|
5108 return str + (L.Browser.svg ? 'z' : 'x'); |
|
5109 } |
|
5110 }); |
|
5111 |
|
5112 L.polygon = function (latlngs, options) { |
|
5113 return new L.Polygon(latlngs, options); |
|
5114 }; |
|
5115 |
|
5116 |
|
5117 /* |
|
5118 * Contains L.MultiPolyline and L.MultiPolygon layers. |
|
5119 */ |
|
5120 |
|
5121 (function () { |
|
5122 function createMulti(Klass) { |
|
5123 |
|
5124 return L.FeatureGroup.extend({ |
|
5125 |
|
5126 initialize: function (latlngs, options) { |
|
5127 this._layers = {}; |
|
5128 this._options = options; |
|
5129 this.setLatLngs(latlngs); |
|
5130 }, |
|
5131 |
|
5132 setLatLngs: function (latlngs) { |
|
5133 var i = 0, |
|
5134 len = latlngs.length; |
|
5135 |
|
5136 this.eachLayer(function (layer) { |
|
5137 if (i < len) { |
|
5138 layer.setLatLngs(latlngs[i++]); |
|
5139 } else { |
|
5140 this.removeLayer(layer); |
|
5141 } |
|
5142 }, this); |
|
5143 |
|
5144 while (i < len) { |
|
5145 this.addLayer(new Klass(latlngs[i++], this._options)); |
|
5146 } |
|
5147 |
|
5148 return this; |
|
5149 } |
|
5150 }); |
|
5151 } |
|
5152 |
|
5153 L.MultiPolyline = createMulti(L.Polyline); |
|
5154 L.MultiPolygon = createMulti(L.Polygon); |
|
5155 |
|
5156 L.multiPolyline = function (latlngs, options) { |
|
5157 return new L.MultiPolyline(latlngs, options); |
|
5158 }; |
|
5159 |
|
5160 L.multiPolygon = function (latlngs, options) { |
|
5161 return new L.MultiPolygon(latlngs, options); |
|
5162 }; |
|
5163 }()); |
|
5164 |
|
5165 |
|
5166 /* |
|
5167 * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object. |
|
5168 */ |
|
5169 |
|
5170 L.Rectangle = L.Polygon.extend({ |
|
5171 initialize: function (latLngBounds, options) { |
|
5172 L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options); |
|
5173 }, |
|
5174 |
|
5175 setBounds: function (latLngBounds) { |
|
5176 this.setLatLngs(this._boundsToLatLngs(latLngBounds)); |
|
5177 }, |
|
5178 |
|
5179 _boundsToLatLngs: function (latLngBounds) { |
|
5180 latLngBounds = L.latLngBounds(latLngBounds); |
|
5181 return [ |
|
5182 latLngBounds.getSouthWest(), |
|
5183 latLngBounds.getNorthWest(), |
|
5184 latLngBounds.getNorthEast(), |
|
5185 latLngBounds.getSouthEast() |
|
5186 ]; |
|
5187 } |
|
5188 }); |
|
5189 |
|
5190 L.rectangle = function (latLngBounds, options) { |
|
5191 return new L.Rectangle(latLngBounds, options); |
|
5192 }; |
|
5193 |
|
5194 |
|
5195 /* |
|
5196 * L.Circle is a circle overlay (with a certain radius in meters). |
|
5197 */ |
|
5198 |
|
5199 L.Circle = L.Path.extend({ |
|
5200 initialize: function (latlng, radius, options) { |
|
5201 L.Path.prototype.initialize.call(this, options); |
|
5202 |
|
5203 this._latlng = L.latLng(latlng); |
|
5204 this._mRadius = radius; |
|
5205 }, |
|
5206 |
|
5207 options: { |
|
5208 fill: true |
|
5209 }, |
|
5210 |
|
5211 setLatLng: function (latlng) { |
|
5212 this._latlng = L.latLng(latlng); |
|
5213 return this.redraw(); |
|
5214 }, |
|
5215 |
|
5216 setRadius: function (radius) { |
|
5217 this._mRadius = radius; |
|
5218 return this.redraw(); |
|
5219 }, |
|
5220 |
|
5221 projectLatlngs: function () { |
|
5222 var lngRadius = this._getLngRadius(), |
|
5223 latlng2 = new L.LatLng(this._latlng.lat, this._latlng.lng - lngRadius), |
|
5224 point2 = this._map.latLngToLayerPoint(latlng2); |
|
5225 |
|
5226 this._point = this._map.latLngToLayerPoint(this._latlng); |
|
5227 this._radius = Math.max(Math.round(this._point.x - point2.x), 1); |
|
5228 }, |
|
5229 |
|
5230 getBounds: function () { |
|
5231 var lngRadius = this._getLngRadius(), |
|
5232 latRadius = (this._mRadius / 40075017) * 360, |
|
5233 latlng = this._latlng, |
|
5234 sw = new L.LatLng(latlng.lat - latRadius, latlng.lng - lngRadius), |
|
5235 ne = new L.LatLng(latlng.lat + latRadius, latlng.lng + lngRadius); |
|
5236 |
|
5237 return new L.LatLngBounds(sw, ne); |
|
5238 }, |
|
5239 |
|
5240 getLatLng: function () { |
|
5241 return this._latlng; |
|
5242 }, |
|
5243 |
|
5244 getPathString: function () { |
|
5245 var p = this._point, |
|
5246 r = this._radius; |
|
5247 |
|
5248 if (this._checkIfEmpty()) { |
|
5249 return ''; |
|
5250 } |
|
5251 |
|
5252 if (L.Browser.svg) { |
|
5253 return "M" + p.x + "," + (p.y - r) + |
|
5254 "A" + r + "," + r + ",0,1,1," + |
|
5255 (p.x - 0.1) + "," + (p.y - r) + " z"; |
|
5256 } else { |
|
5257 p._round(); |
|
5258 r = Math.round(r); |
|
5259 return "AL " + p.x + "," + p.y + " " + r + "," + r + " 0," + (65535 * 360); |
|
5260 } |
|
5261 }, |
|
5262 |
|
5263 getRadius: function () { |
|
5264 return this._mRadius; |
|
5265 }, |
|
5266 |
|
5267 // TODO Earth hardcoded, move into projection code! |
|
5268 |
|
5269 _getLatRadius: function () { |
|
5270 return (this._mRadius / 40075017) * 360; |
|
5271 }, |
|
5272 |
|
5273 _getLngRadius: function () { |
|
5274 return this._getLatRadius() / Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat); |
|
5275 }, |
|
5276 |
|
5277 _checkIfEmpty: function () { |
|
5278 if (!this._map) { |
|
5279 return false; |
|
5280 } |
|
5281 var vp = this._map._pathViewport, |
|
5282 r = this._radius, |
|
5283 p = this._point; |
|
5284 |
|
5285 return p.x - r > vp.max.x || p.y - r > vp.max.y || |
|
5286 p.x + r < vp.min.x || p.y + r < vp.min.y; |
|
5287 } |
|
5288 }); |
|
5289 |
|
5290 L.circle = function (latlng, radius, options) { |
|
5291 return new L.Circle(latlng, radius, options); |
|
5292 }; |
|
5293 |
|
5294 |
|
5295 /* |
|
5296 * L.CircleMarker is a circle overlay with a permanent pixel radius. |
|
5297 */ |
|
5298 |
|
5299 L.CircleMarker = L.Circle.extend({ |
|
5300 options: { |
|
5301 radius: 10, |
|
5302 weight: 2 |
|
5303 }, |
|
5304 |
|
5305 initialize: function (latlng, options) { |
|
5306 L.Circle.prototype.initialize.call(this, latlng, null, options); |
|
5307 this._radius = this.options.radius; |
|
5308 }, |
|
5309 |
|
5310 projectLatlngs: function () { |
|
5311 this._point = this._map.latLngToLayerPoint(this._latlng); |
|
5312 }, |
|
5313 |
|
5314 _updateStyle : function () { |
|
5315 L.Circle.prototype._updateStyle.call(this); |
|
5316 this.setRadius(this.options.radius); |
|
5317 }, |
|
5318 |
|
5319 setRadius: function (radius) { |
|
5320 this.options.radius = this._radius = radius; |
|
5321 return this.redraw(); |
|
5322 } |
|
5323 }); |
|
5324 |
|
5325 L.circleMarker = function (latlng, options) { |
|
5326 return new L.CircleMarker(latlng, options); |
|
5327 }; |
|
5328 |
|
5329 |
|
5330 /* |
|
5331 * Extends L.Polyline to be able to manually detect clicks on Canvas-rendered polylines. |
|
5332 */ |
|
5333 |
|
5334 L.Polyline.include(!L.Path.CANVAS ? {} : { |
|
5335 _containsPoint: function (p, closed) { |
|
5336 var i, j, k, len, len2, dist, part, |
|
5337 w = this.options.weight / 2; |
|
5338 |
|
5339 if (L.Browser.touch) { |
|
5340 w += 10; // polyline click tolerance on touch devices |
|
5341 } |
|
5342 |
|
5343 for (i = 0, len = this._parts.length; i < len; i++) { |
|
5344 part = this._parts[i]; |
|
5345 for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { |
|
5346 if (!closed && (j === 0)) { |
|
5347 continue; |
|
5348 } |
|
5349 |
|
5350 dist = L.LineUtil.pointToSegmentDistance(p, part[k], part[j]); |
|
5351 |
|
5352 if (dist <= w) { |
|
5353 return true; |
|
5354 } |
|
5355 } |
|
5356 } |
|
5357 return false; |
|
5358 } |
|
5359 }); |
|
5360 |
|
5361 |
|
5362 /* |
|
5363 * Extends L.Polygon to be able to manually detect clicks on Canvas-rendered polygons. |
|
5364 */ |
|
5365 |
|
5366 L.Polygon.include(!L.Path.CANVAS ? {} : { |
|
5367 _containsPoint: function (p) { |
|
5368 var inside = false, |
|
5369 part, p1, p2, |
|
5370 i, j, k, |
|
5371 len, len2; |
|
5372 |
|
5373 // TODO optimization: check if within bounds first |
|
5374 |
|
5375 if (L.Polyline.prototype._containsPoint.call(this, p, true)) { |
|
5376 // click on polygon border |
|
5377 return true; |
|
5378 } |
|
5379 |
|
5380 // ray casting algorithm for detecting if point is in polygon |
|
5381 |
|
5382 for (i = 0, len = this._parts.length; i < len; i++) { |
|
5383 part = this._parts[i]; |
|
5384 |
|
5385 for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) { |
|
5386 p1 = part[j]; |
|
5387 p2 = part[k]; |
|
5388 |
|
5389 if (((p1.y > p.y) !== (p2.y > p.y)) && |
|
5390 (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) { |
|
5391 inside = !inside; |
|
5392 } |
|
5393 } |
|
5394 } |
|
5395 |
|
5396 return inside; |
|
5397 } |
|
5398 }); |
|
5399 |
|
5400 |
|
5401 /* |
|
5402 * Extends L.Circle with Canvas-specific code. |
|
5403 */ |
|
5404 |
|
5405 L.Circle.include(!L.Path.CANVAS ? {} : { |
|
5406 _drawPath: function () { |
|
5407 var p = this._point; |
|
5408 this._ctx.beginPath(); |
|
5409 this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false); |
|
5410 }, |
|
5411 |
|
5412 _containsPoint: function (p) { |
|
5413 var center = this._point, |
|
5414 w2 = this.options.stroke ? this.options.weight / 2 : 0; |
|
5415 |
|
5416 return (p.distanceTo(center) <= this._radius + w2); |
|
5417 } |
|
5418 }); |
|
5419 |
|
5420 |
|
5421 /* |
|
5422 * L.GeoJSON turns any GeoJSON data into a Leaflet layer. |
|
5423 */ |
|
5424 |
|
5425 L.GeoJSON = L.FeatureGroup.extend({ |
|
5426 |
|
5427 initialize: function (geojson, options) { |
|
5428 L.setOptions(this, options); |
|
5429 |
|
5430 this._layers = {}; |
|
5431 |
|
5432 if (geojson) { |
|
5433 this.addData(geojson); |
|
5434 } |
|
5435 }, |
|
5436 |
|
5437 addData: function (geojson) { |
|
5438 var features = L.Util.isArray(geojson) ? geojson : geojson.features, |
|
5439 i, len; |
|
5440 |
|
5441 if (features) { |
|
5442 for (i = 0, len = features.length; i < len; i++) { |
|
5443 // Only add this if geometry or geometries are set and not null |
|
5444 if (features[i].geometries || features[i].geometry || features[i].features) { |
|
5445 this.addData(features[i]); |
|
5446 } |
|
5447 } |
|
5448 return this; |
|
5449 } |
|
5450 |
|
5451 var options = this.options; |
|
5452 |
|
5453 if (options.filter && !options.filter(geojson)) { return; } |
|
5454 |
|
5455 var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer); |
|
5456 layer.feature = geojson; |
|
5457 |
|
5458 layer.defaultOptions = layer.options; |
|
5459 this.resetStyle(layer); |
|
5460 |
|
5461 if (options.onEachFeature) { |
|
5462 options.onEachFeature(geojson, layer); |
|
5463 } |
|
5464 |
|
5465 return this.addLayer(layer); |
|
5466 }, |
|
5467 |
|
5468 resetStyle: function (layer) { |
|
5469 var style = this.options.style; |
|
5470 if (style) { |
|
5471 // reset any custom styles |
|
5472 L.Util.extend(layer.options, layer.defaultOptions); |
|
5473 |
|
5474 this._setLayerStyle(layer, style); |
|
5475 } |
|
5476 }, |
|
5477 |
|
5478 setStyle: function (style) { |
|
5479 this.eachLayer(function (layer) { |
|
5480 this._setLayerStyle(layer, style); |
|
5481 }, this); |
|
5482 }, |
|
5483 |
|
5484 _setLayerStyle: function (layer, style) { |
|
5485 if (typeof style === 'function') { |
|
5486 style = style(layer.feature); |
|
5487 } |
|
5488 if (layer.setStyle) { |
|
5489 layer.setStyle(style); |
|
5490 } |
|
5491 } |
|
5492 }); |
|
5493 |
|
5494 L.extend(L.GeoJSON, { |
|
5495 geometryToLayer: function (geojson, pointToLayer) { |
|
5496 var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson, |
|
5497 coords = geometry.coordinates, |
|
5498 layers = [], |
|
5499 latlng, latlngs, i, len, layer; |
|
5500 |
|
5501 switch (geometry.type) { |
|
5502 case 'Point': |
|
5503 latlng = this.coordsToLatLng(coords); |
|
5504 return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng); |
|
5505 |
|
5506 case 'MultiPoint': |
|
5507 for (i = 0, len = coords.length; i < len; i++) { |
|
5508 latlng = this.coordsToLatLng(coords[i]); |
|
5509 layer = pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng); |
|
5510 layers.push(layer); |
|
5511 } |
|
5512 return new L.FeatureGroup(layers); |
|
5513 |
|
5514 case 'LineString': |
|
5515 latlngs = this.coordsToLatLngs(coords); |
|
5516 return new L.Polyline(latlngs); |
|
5517 |
|
5518 case 'Polygon': |
|
5519 latlngs = this.coordsToLatLngs(coords, 1); |
|
5520 return new L.Polygon(latlngs); |
|
5521 |
|
5522 case 'MultiLineString': |
|
5523 latlngs = this.coordsToLatLngs(coords, 1); |
|
5524 return new L.MultiPolyline(latlngs); |
|
5525 |
|
5526 case 'MultiPolygon': |
|
5527 latlngs = this.coordsToLatLngs(coords, 2); |
|
5528 return new L.MultiPolygon(latlngs); |
|
5529 |
|
5530 case 'GeometryCollection': |
|
5531 for (i = 0, len = geometry.geometries.length; i < len; i++) { |
|
5532 layer = this.geometryToLayer({ |
|
5533 geometry: geometry.geometries[i], |
|
5534 type: 'Feature', |
|
5535 properties: geojson.properties |
|
5536 }, pointToLayer); |
|
5537 layers.push(layer); |
|
5538 } |
|
5539 return new L.FeatureGroup(layers); |
|
5540 |
|
5541 default: |
|
5542 throw new Error('Invalid GeoJSON object.'); |
|
5543 } |
|
5544 }, |
|
5545 |
|
5546 coordsToLatLng: function (coords, reverse) { // (Array, Boolean) -> LatLng |
|
5547 var lat = parseFloat(coords[reverse ? 0 : 1]), |
|
5548 lng = parseFloat(coords[reverse ? 1 : 0]); |
|
5549 |
|
5550 return new L.LatLng(lat, lng); |
|
5551 }, |
|
5552 |
|
5553 coordsToLatLngs: function (coords, levelsDeep, reverse) { // (Array, Number, Boolean) -> Array |
|
5554 var latlng, |
|
5555 latlngs = [], |
|
5556 i, len; |
|
5557 |
|
5558 for (i = 0, len = coords.length; i < len; i++) { |
|
5559 latlng = levelsDeep ? |
|
5560 this.coordsToLatLngs(coords[i], levelsDeep - 1, reverse) : |
|
5561 this.coordsToLatLng(coords[i], reverse); |
|
5562 |
|
5563 latlngs.push(latlng); |
|
5564 } |
|
5565 |
|
5566 return latlngs; |
|
5567 } |
|
5568 }); |
|
5569 |
|
5570 L.geoJson = function (geojson, options) { |
|
5571 return new L.GeoJSON(geojson, options); |
|
5572 }; |
|
5573 |
|
5574 |
|
5575 /* |
|
5576 * L.DomEvent contains functions for working with DOM events. |
|
5577 */ |
|
5578 |
|
5579 L.DomEvent = { |
|
5580 /* inspired by John Resig, Dean Edwards and YUI addEvent implementations */ |
|
5581 addListener: function (obj, type, fn, context) { // (HTMLElement, String, Function[, Object]) |
|
5582 |
|
5583 var id = L.stamp(fn), |
|
5584 key = '_leaflet_' + type + id, |
|
5585 handler, originalHandler, newType; |
|
5586 |
|
5587 if (obj[key]) { return this; } |
|
5588 |
|
5589 handler = function (e) { |
|
5590 return fn.call(context || obj, e || L.DomEvent._getEvent()); |
|
5591 }; |
|
5592 |
|
5593 if (L.Browser.msTouch && type.indexOf('touch') === 0) { |
|
5594 return this.addMsTouchListener(obj, type, handler, id); |
|
5595 } |
|
5596 if (L.Browser.touch && (type === 'dblclick') && this.addDoubleTapListener) { |
|
5597 this.addDoubleTapListener(obj, handler, id); |
|
5598 } |
|
5599 |
|
5600 if ('addEventListener' in obj) { |
|
5601 |
|
5602 if (type === 'mousewheel') { |
|
5603 obj.addEventListener('DOMMouseScroll', handler, false); |
|
5604 obj.addEventListener(type, handler, false); |
|
5605 |
|
5606 } else if ((type === 'mouseenter') || (type === 'mouseleave')) { |
|
5607 |
|
5608 originalHandler = handler; |
|
5609 newType = (type === 'mouseenter' ? 'mouseover' : 'mouseout'); |
|
5610 |
|
5611 handler = function (e) { |
|
5612 if (!L.DomEvent._checkMouse(obj, e)) { return; } |
|
5613 return originalHandler(e); |
|
5614 }; |
|
5615 |
|
5616 obj.addEventListener(newType, handler, false); |
|
5617 |
|
5618 } else { |
|
5619 obj.addEventListener(type, handler, false); |
|
5620 } |
|
5621 |
|
5622 } else if ('attachEvent' in obj) { |
|
5623 obj.attachEvent("on" + type, handler); |
|
5624 } |
|
5625 |
|
5626 obj[key] = handler; |
|
5627 |
|
5628 return this; |
|
5629 }, |
|
5630 |
|
5631 removeListener: function (obj, type, fn) { // (HTMLElement, String, Function) |
|
5632 |
|
5633 var id = L.stamp(fn), |
|
5634 key = '_leaflet_' + type + id, |
|
5635 handler = obj[key]; |
|
5636 |
|
5637 if (!handler) { return; } |
|
5638 |
|
5639 if (L.Browser.msTouch && type.indexOf('touch') === 0) { |
|
5640 this.removeMsTouchListener(obj, type, id); |
|
5641 } else if (L.Browser.touch && (type === 'dblclick') && this.removeDoubleTapListener) { |
|
5642 this.removeDoubleTapListener(obj, id); |
|
5643 |
|
5644 } else if ('removeEventListener' in obj) { |
|
5645 |
|
5646 if (type === 'mousewheel') { |
|
5647 obj.removeEventListener('DOMMouseScroll', handler, false); |
|
5648 obj.removeEventListener(type, handler, false); |
|
5649 |
|
5650 } else if ((type === 'mouseenter') || (type === 'mouseleave')) { |
|
5651 obj.removeEventListener((type === 'mouseenter' ? 'mouseover' : 'mouseout'), handler, false); |
|
5652 } else { |
|
5653 obj.removeEventListener(type, handler, false); |
|
5654 } |
|
5655 } else if ('detachEvent' in obj) { |
|
5656 obj.detachEvent("on" + type, handler); |
|
5657 } |
|
5658 |
|
5659 obj[key] = null; |
|
5660 |
|
5661 return this; |
|
5662 }, |
|
5663 |
|
5664 stopPropagation: function (e) { |
|
5665 |
|
5666 if (e.stopPropagation) { |
|
5667 e.stopPropagation(); |
|
5668 } else { |
|
5669 e.cancelBubble = true; |
|
5670 } |
|
5671 return this; |
|
5672 }, |
|
5673 |
|
5674 disableClickPropagation: function (el) { |
|
5675 |
|
5676 var stop = L.DomEvent.stopPropagation; |
|
5677 |
|
5678 for (var i = L.Draggable.START.length - 1; i >= 0; i--) { |
|
5679 L.DomEvent.addListener(el, L.Draggable.START[i], stop); |
|
5680 } |
|
5681 |
|
5682 return L.DomEvent |
|
5683 .addListener(el, 'click', stop) |
|
5684 .addListener(el, 'dblclick', stop); |
|
5685 }, |
|
5686 |
|
5687 preventDefault: function (e) { |
|
5688 |
|
5689 if (e.preventDefault) { |
|
5690 e.preventDefault(); |
|
5691 } else { |
|
5692 e.returnValue = false; |
|
5693 } |
|
5694 return this; |
|
5695 }, |
|
5696 |
|
5697 stop: function (e) { |
|
5698 return L.DomEvent.preventDefault(e).stopPropagation(e); |
|
5699 }, |
|
5700 |
|
5701 getMousePosition: function (e, container) { |
|
5702 |
|
5703 var body = document.body, |
|
5704 docEl = document.documentElement, |
|
5705 x = e.pageX ? e.pageX : e.clientX + body.scrollLeft + docEl.scrollLeft, |
|
5706 y = e.pageY ? e.pageY : e.clientY + body.scrollTop + docEl.scrollTop, |
|
5707 pos = new L.Point(x, y); |
|
5708 |
|
5709 return (container ? pos._subtract(L.DomUtil.getViewportOffset(container)) : pos); |
|
5710 }, |
|
5711 |
|
5712 getWheelDelta: function (e) { |
|
5713 |
|
5714 var delta = 0; |
|
5715 |
|
5716 if (e.wheelDelta) { |
|
5717 delta = e.wheelDelta / 120; |
|
5718 } |
|
5719 if (e.detail) { |
|
5720 delta = -e.detail / 3; |
|
5721 } |
|
5722 return delta; |
|
5723 }, |
|
5724 |
|
5725 // check if element really left/entered the event target (for mouseenter/mouseleave) |
|
5726 _checkMouse: function (el, e) { |
|
5727 |
|
5728 var related = e.relatedTarget; |
|
5729 |
|
5730 if (!related) { return true; } |
|
5731 |
|
5732 try { |
|
5733 while (related && (related !== el)) { |
|
5734 related = related.parentNode; |
|
5735 } |
|
5736 } catch (err) { |
|
5737 return false; |
|
5738 } |
|
5739 return (related !== el); |
|
5740 }, |
|
5741 |
|
5742 _getEvent: function () { // evil magic for IE |
|
5743 /*jshint noarg:false */ |
|
5744 var e = window.event; |
|
5745 if (!e) { |
|
5746 var caller = arguments.callee.caller; |
|
5747 while (caller) { |
|
5748 e = caller['arguments'][0]; |
|
5749 if (e && window.Event === e.constructor) { |
|
5750 break; |
|
5751 } |
|
5752 caller = caller.caller; |
|
5753 } |
|
5754 } |
|
5755 return e; |
|
5756 } |
|
5757 }; |
|
5758 |
|
5759 L.DomEvent.on = L.DomEvent.addListener; |
|
5760 L.DomEvent.off = L.DomEvent.removeListener; |
|
5761 |
|
5762 |
|
5763 /* |
|
5764 * L.Draggable allows you to add dragging capabilities to any element. Supports mobile devices too. |
|
5765 */ |
|
5766 |
|
5767 L.Draggable = L.Class.extend({ |
|
5768 includes: L.Mixin.Events, |
|
5769 |
|
5770 statics: { |
|
5771 START: L.Browser.touch ? ['touchstart', 'mousedown'] : ['mousedown'], |
|
5772 END: { |
|
5773 mousedown: 'mouseup', |
|
5774 touchstart: 'touchend', |
|
5775 MSPointerDown: 'touchend' |
|
5776 }, |
|
5777 MOVE: { |
|
5778 mousedown: 'mousemove', |
|
5779 touchstart: 'touchmove', |
|
5780 MSPointerDown: 'touchmove' |
|
5781 }, |
|
5782 TAP_TOLERANCE: 15 |
|
5783 }, |
|
5784 |
|
5785 initialize: function (element, dragStartTarget, longPress) { |
|
5786 this._element = element; |
|
5787 this._dragStartTarget = dragStartTarget || element; |
|
5788 this._longPress = longPress && !L.Browser.msTouch; |
|
5789 }, |
|
5790 |
|
5791 enable: function () { |
|
5792 if (this._enabled) { return; } |
|
5793 |
|
5794 for (var i = L.Draggable.START.length - 1; i >= 0; i--) { |
|
5795 L.DomEvent.on(this._dragStartTarget, L.Draggable.START[i], this._onDown, this); |
|
5796 } |
|
5797 this._enabled = true; |
|
5798 }, |
|
5799 |
|
5800 disable: function () { |
|
5801 if (!this._enabled) { return; } |
|
5802 |
|
5803 for (var i = L.Draggable.START.length - 1; i >= 0; i--) { |
|
5804 L.DomEvent.off(this._dragStartTarget, L.Draggable.START[i], this._onDown, this); |
|
5805 } |
|
5806 this._enabled = false; |
|
5807 this._moved = false; |
|
5808 }, |
|
5809 |
|
5810 _onDown: function (e) { |
|
5811 if ((!L.Browser.touch && e.shiftKey) || |
|
5812 ((e.which !== 1) && (e.button !== 1) && !e.touches)) { return; } |
|
5813 |
|
5814 L.DomEvent.preventDefault(e); |
|
5815 L.DomEvent.stopPropagation(e); |
|
5816 |
|
5817 if (L.Draggable._disabled) { return; } |
|
5818 |
|
5819 this._simulateClick = true; |
|
5820 |
|
5821 if (e.touches && e.touches.length > 1) { |
|
5822 this._simulateClick = false; |
|
5823 clearTimeout(this._longPressTimeout); |
|
5824 return; |
|
5825 } |
|
5826 |
|
5827 var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), |
|
5828 el = first.target; |
|
5829 |
|
5830 if (L.Browser.touch && el.tagName.toLowerCase() === 'a') { |
|
5831 L.DomUtil.addClass(el, 'leaflet-active'); |
|
5832 } |
|
5833 |
|
5834 this._moved = false; |
|
5835 if (this._moving) { return; } |
|
5836 |
|
5837 this._startPoint = new L.Point(first.clientX, first.clientY); |
|
5838 this._startPos = this._newPos = L.DomUtil.getPosition(this._element); |
|
5839 |
|
5840 //Touch contextmenu event emulation |
|
5841 if (e.touches && e.touches.length === 1 && L.Browser.touch && this._longPress) { |
|
5842 this._longPressTimeout = setTimeout(L.bind(function () { |
|
5843 var dist = (this._newPos && this._newPos.distanceTo(this._startPos)) || 0; |
|
5844 |
|
5845 if (dist < L.Draggable.TAP_TOLERANCE) { |
|
5846 this._simulateClick = false; |
|
5847 this._onUp(); |
|
5848 this._simulateEvent('contextmenu', first); |
|
5849 } |
|
5850 }, this), 1000); |
|
5851 } |
|
5852 |
|
5853 L.DomEvent.on(document, L.Draggable.MOVE[e.type], this._onMove, this); |
|
5854 L.DomEvent.on(document, L.Draggable.END[e.type], this._onUp, this); |
|
5855 }, |
|
5856 |
|
5857 _onMove: function (e) { |
|
5858 if (e.touches && e.touches.length > 1) { return; } |
|
5859 |
|
5860 var first = (e.touches && e.touches.length === 1 ? e.touches[0] : e), |
|
5861 newPoint = new L.Point(first.clientX, first.clientY), |
|
5862 diffVec = newPoint.subtract(this._startPoint); |
|
5863 |
|
5864 if (!diffVec.x && !diffVec.y) { return; } |
|
5865 |
|
5866 L.DomEvent.preventDefault(e); |
|
5867 |
|
5868 if (!this._moved) { |
|
5869 this.fire('dragstart'); |
|
5870 this._moved = true; |
|
5871 |
|
5872 this._startPos = L.DomUtil.getPosition(this._element).subtract(diffVec); |
|
5873 |
|
5874 if (!L.Browser.touch) { |
|
5875 L.DomUtil.disableTextSelection(); |
|
5876 this._setMovingCursor(); |
|
5877 } |
|
5878 } |
|
5879 |
|
5880 this._newPos = this._startPos.add(diffVec); |
|
5881 this._moving = true; |
|
5882 |
|
5883 L.Util.cancelAnimFrame(this._animRequest); |
|
5884 this._animRequest = L.Util.requestAnimFrame(this._updatePosition, this, true, this._dragStartTarget); |
|
5885 }, |
|
5886 |
|
5887 _updatePosition: function () { |
|
5888 this.fire('predrag'); |
|
5889 L.DomUtil.setPosition(this._element, this._newPos); |
|
5890 this.fire('drag'); |
|
5891 }, |
|
5892 |
|
5893 _onUp: function (e) { |
|
5894 var simulateClickTouch; |
|
5895 clearTimeout(this._longPressTimeout); |
|
5896 if (this._simulateClick && e.changedTouches) { |
|
5897 var first = e.changedTouches[0], |
|
5898 el = first.target, |
|
5899 dist = (this._newPos && this._newPos.distanceTo(this._startPos)) || 0; |
|
5900 |
|
5901 if (el.tagName.toLowerCase() === 'a') { |
|
5902 L.DomUtil.removeClass(el, 'leaflet-active'); |
|
5903 } |
|
5904 |
|
5905 if (dist < L.Draggable.TAP_TOLERANCE) { |
|
5906 simulateClickTouch = first; |
|
5907 } |
|
5908 } |
|
5909 |
|
5910 if (!L.Browser.touch) { |
|
5911 L.DomUtil.enableTextSelection(); |
|
5912 this._restoreCursor(); |
|
5913 } |
|
5914 |
|
5915 for (var i in L.Draggable.MOVE) { |
|
5916 if (L.Draggable.MOVE.hasOwnProperty(i)) { |
|
5917 L.DomEvent.off(document, L.Draggable.MOVE[i], this._onMove); |
|
5918 L.DomEvent.off(document, L.Draggable.END[i], this._onUp); |
|
5919 } |
|
5920 } |
|
5921 |
|
5922 if (this._moved) { |
|
5923 // ensure drag is not fired after dragend |
|
5924 L.Util.cancelAnimFrame(this._animRequest); |
|
5925 |
|
5926 this.fire('dragend'); |
|
5927 } |
|
5928 this._moving = false; |
|
5929 |
|
5930 if (simulateClickTouch) { |
|
5931 this._moved = false; |
|
5932 this._simulateEvent('click', simulateClickTouch); |
|
5933 } |
|
5934 }, |
|
5935 |
|
5936 _setMovingCursor: function () { |
|
5937 L.DomUtil.addClass(document.body, 'leaflet-dragging'); |
|
5938 }, |
|
5939 |
|
5940 _restoreCursor: function () { |
|
5941 L.DomUtil.removeClass(document.body, 'leaflet-dragging'); |
|
5942 }, |
|
5943 |
|
5944 _simulateEvent: function (type, e) { |
|
5945 var simulatedEvent = document.createEvent('MouseEvents'); |
|
5946 |
|
5947 simulatedEvent.initMouseEvent( |
|
5948 type, true, true, window, 1, |
|
5949 e.screenX, e.screenY, |
|
5950 e.clientX, e.clientY, |
|
5951 false, false, false, false, 0, null); |
|
5952 |
|
5953 e.target.dispatchEvent(simulatedEvent); |
|
5954 } |
|
5955 }); |
|
5956 |
|
5957 |
|
5958 /* |
|
5959 L.Handler is a base class for handler classes that are used internally to inject |
|
5960 interaction features like dragging to classes like Map and Marker. |
|
5961 */ |
|
5962 |
|
5963 L.Handler = L.Class.extend({ |
|
5964 initialize: function (map) { |
|
5965 this._map = map; |
|
5966 }, |
|
5967 |
|
5968 enable: function () { |
|
5969 if (this._enabled) { return; } |
|
5970 |
|
5971 this._enabled = true; |
|
5972 this.addHooks(); |
|
5973 }, |
|
5974 |
|
5975 disable: function () { |
|
5976 if (!this._enabled) { return; } |
|
5977 |
|
5978 this._enabled = false; |
|
5979 this.removeHooks(); |
|
5980 }, |
|
5981 |
|
5982 enabled: function () { |
|
5983 return !!this._enabled; |
|
5984 } |
|
5985 }); |
|
5986 |
|
5987 |
|
5988 /* |
|
5989 * L.Handler.MapDrag is used to make the map draggable (with panning inertia), enabled by default. |
|
5990 */ |
|
5991 |
|
5992 L.Map.mergeOptions({ |
|
5993 dragging: true, |
|
5994 |
|
5995 inertia: !L.Browser.android23, |
|
5996 inertiaDeceleration: 3400, // px/s^2 |
|
5997 inertiaMaxSpeed: Infinity, // px/s |
|
5998 inertiaThreshold: L.Browser.touch ? 32 : 18, // ms |
|
5999 easeLinearity: 0.25, |
|
6000 |
|
6001 longPress: true, |
|
6002 |
|
6003 // TODO refactor, move to CRS |
|
6004 worldCopyJump: false |
|
6005 }); |
|
6006 |
|
6007 L.Map.Drag = L.Handler.extend({ |
|
6008 addHooks: function () { |
|
6009 if (!this._draggable) { |
|
6010 var map = this._map; |
|
6011 |
|
6012 this._draggable = new L.Draggable(map._mapPane, map._container, map.options.longPress); |
|
6013 |
|
6014 this._draggable.on({ |
|
6015 'dragstart': this._onDragStart, |
|
6016 'drag': this._onDrag, |
|
6017 'dragend': this._onDragEnd |
|
6018 }, this); |
|
6019 |
|
6020 if (map.options.worldCopyJump) { |
|
6021 this._draggable.on('predrag', this._onPreDrag, this); |
|
6022 map.on('viewreset', this._onViewReset, this); |
|
6023 } |
|
6024 } |
|
6025 this._draggable.enable(); |
|
6026 }, |
|
6027 |
|
6028 removeHooks: function () { |
|
6029 this._draggable.disable(); |
|
6030 }, |
|
6031 |
|
6032 moved: function () { |
|
6033 return this._draggable && this._draggable._moved; |
|
6034 }, |
|
6035 |
|
6036 _onDragStart: function () { |
|
6037 var map = this._map; |
|
6038 |
|
6039 if (map._panAnim) { |
|
6040 map._panAnim.stop(); |
|
6041 } |
|
6042 |
|
6043 map |
|
6044 .fire('movestart') |
|
6045 .fire('dragstart'); |
|
6046 |
|
6047 if (map.options.inertia) { |
|
6048 this._positions = []; |
|
6049 this._times = []; |
|
6050 } |
|
6051 }, |
|
6052 |
|
6053 _onDrag: function () { |
|
6054 if (this._map.options.inertia) { |
|
6055 var time = this._lastTime = +new Date(), |
|
6056 pos = this._lastPos = this._draggable._newPos; |
|
6057 |
|
6058 this._positions.push(pos); |
|
6059 this._times.push(time); |
|
6060 |
|
6061 if (time - this._times[0] > 200) { |
|
6062 this._positions.shift(); |
|
6063 this._times.shift(); |
|
6064 } |
|
6065 } |
|
6066 |
|
6067 this._map |
|
6068 .fire('move') |
|
6069 .fire('drag'); |
|
6070 }, |
|
6071 |
|
6072 _onViewReset: function () { |
|
6073 // TODO fix hardcoded Earth values |
|
6074 var pxCenter = this._map.getSize()._divideBy(2), |
|
6075 pxWorldCenter = this._map.latLngToLayerPoint(new L.LatLng(0, 0)); |
|
6076 |
|
6077 this._initialWorldOffset = pxWorldCenter.subtract(pxCenter).x; |
|
6078 this._worldWidth = this._map.project(new L.LatLng(0, 180)).x; |
|
6079 }, |
|
6080 |
|
6081 _onPreDrag: function () { |
|
6082 // TODO refactor to be able to adjust map pane position after zoom |
|
6083 var worldWidth = this._worldWidth, |
|
6084 halfWidth = Math.round(worldWidth / 2), |
|
6085 dx = this._initialWorldOffset, |
|
6086 x = this._draggable._newPos.x, |
|
6087 newX1 = (x - halfWidth + dx) % worldWidth + halfWidth - dx, |
|
6088 newX2 = (x + halfWidth + dx) % worldWidth - halfWidth - dx, |
|
6089 newX = Math.abs(newX1 + dx) < Math.abs(newX2 + dx) ? newX1 : newX2; |
|
6090 |
|
6091 this._draggable._newPos.x = newX; |
|
6092 }, |
|
6093 |
|
6094 _onDragEnd: function () { |
|
6095 var map = this._map, |
|
6096 options = map.options, |
|
6097 delay = +new Date() - this._lastTime, |
|
6098 |
|
6099 noInertia = !options.inertia || delay > options.inertiaThreshold || !this._positions[0]; |
|
6100 |
|
6101 if (noInertia) { |
|
6102 map.fire('moveend'); |
|
6103 |
|
6104 } else { |
|
6105 |
|
6106 var direction = this._lastPos.subtract(this._positions[0]), |
|
6107 duration = (this._lastTime + delay - this._times[0]) / 1000, |
|
6108 ease = options.easeLinearity, |
|
6109 |
|
6110 speedVector = direction.multiplyBy(ease / duration), |
|
6111 speed = speedVector.distanceTo(new L.Point(0, 0)), |
|
6112 |
|
6113 limitedSpeed = Math.min(options.inertiaMaxSpeed, speed), |
|
6114 limitedSpeedVector = speedVector.multiplyBy(limitedSpeed / speed), |
|
6115 |
|
6116 decelerationDuration = limitedSpeed / (options.inertiaDeceleration * ease), |
|
6117 offset = limitedSpeedVector.multiplyBy(-decelerationDuration / 2).round(); |
|
6118 |
|
6119 L.Util.requestAnimFrame(function () { |
|
6120 map.panBy(offset, decelerationDuration, ease); |
|
6121 }); |
|
6122 } |
|
6123 |
|
6124 map.fire('dragend'); |
|
6125 |
|
6126 if (options.maxBounds) { |
|
6127 // TODO predrag validation instead of animation |
|
6128 L.Util.requestAnimFrame(this._panInsideMaxBounds, map, true, map._container); |
|
6129 } |
|
6130 }, |
|
6131 |
|
6132 _panInsideMaxBounds: function () { |
|
6133 this.panInsideBounds(this.options.maxBounds); |
|
6134 } |
|
6135 }); |
|
6136 |
|
6137 L.Map.addInitHook('addHandler', 'dragging', L.Map.Drag); |
|
6138 |
|
6139 |
|
6140 /* |
|
6141 * L.Handler.DoubleClickZoom is used to handle double-click zoom on the map, enabled by default. |
|
6142 */ |
|
6143 |
|
6144 L.Map.mergeOptions({ |
|
6145 doubleClickZoom: true |
|
6146 }); |
|
6147 |
|
6148 L.Map.DoubleClickZoom = L.Handler.extend({ |
|
6149 addHooks: function () { |
|
6150 this._map.on('dblclick', this._onDoubleClick); |
|
6151 }, |
|
6152 |
|
6153 removeHooks: function () { |
|
6154 this._map.off('dblclick', this._onDoubleClick); |
|
6155 }, |
|
6156 |
|
6157 _onDoubleClick: function (e) { |
|
6158 this.setView(e.latlng, this._zoom + 1); |
|
6159 } |
|
6160 }); |
|
6161 |
|
6162 L.Map.addInitHook('addHandler', 'doubleClickZoom', L.Map.DoubleClickZoom); |
|
6163 |
|
6164 |
|
6165 /* |
|
6166 * L.Handler.ScrollWheelZoom is used by L.Map to enable mouse scroll wheel zoom on the map. |
|
6167 */ |
|
6168 |
|
6169 L.Map.mergeOptions({ |
|
6170 scrollWheelZoom: true |
|
6171 }); |
|
6172 |
|
6173 L.Map.ScrollWheelZoom = L.Handler.extend({ |
|
6174 addHooks: function () { |
|
6175 L.DomEvent.on(this._map._container, 'mousewheel', this._onWheelScroll, this); |
|
6176 this._delta = 0; |
|
6177 }, |
|
6178 |
|
6179 removeHooks: function () { |
|
6180 L.DomEvent.off(this._map._container, 'mousewheel', this._onWheelScroll); |
|
6181 }, |
|
6182 |
|
6183 _onWheelScroll: function (e) { |
|
6184 var delta = L.DomEvent.getWheelDelta(e); |
|
6185 |
|
6186 this._delta += delta; |
|
6187 this._lastMousePos = this._map.mouseEventToContainerPoint(e); |
|
6188 |
|
6189 if (!this._startTime) { |
|
6190 this._startTime = +new Date(); |
|
6191 } |
|
6192 |
|
6193 var left = Math.max(40 - (+new Date() - this._startTime), 0); |
|
6194 |
|
6195 clearTimeout(this._timer); |
|
6196 this._timer = setTimeout(L.bind(this._performZoom, this), left); |
|
6197 |
|
6198 L.DomEvent.preventDefault(e); |
|
6199 L.DomEvent.stopPropagation(e); |
|
6200 }, |
|
6201 |
|
6202 _performZoom: function () { |
|
6203 var map = this._map, |
|
6204 delta = this._delta, |
|
6205 zoom = map.getZoom(); |
|
6206 |
|
6207 delta = delta > 0 ? Math.ceil(delta) : Math.round(delta); |
|
6208 delta = Math.max(Math.min(delta, 4), -4); |
|
6209 delta = map._limitZoom(zoom + delta) - zoom; |
|
6210 |
|
6211 this._delta = 0; |
|
6212 |
|
6213 this._startTime = null; |
|
6214 |
|
6215 if (!delta) { return; } |
|
6216 |
|
6217 var newZoom = zoom + delta, |
|
6218 newCenter = this._getCenterForScrollWheelZoom(newZoom); |
|
6219 |
|
6220 map.setView(newCenter, newZoom); |
|
6221 }, |
|
6222 |
|
6223 _getCenterForScrollWheelZoom: function (newZoom) { |
|
6224 var map = this._map, |
|
6225 scale = map.getZoomScale(newZoom), |
|
6226 viewHalf = map.getSize()._divideBy(2), |
|
6227 centerOffset = this._lastMousePos._subtract(viewHalf)._multiplyBy(1 - 1 / scale), |
|
6228 newCenterPoint = map._getTopLeftPoint()._add(viewHalf)._add(centerOffset); |
|
6229 |
|
6230 return map.unproject(newCenterPoint); |
|
6231 } |
|
6232 }); |
|
6233 |
|
6234 L.Map.addInitHook('addHandler', 'scrollWheelZoom', L.Map.ScrollWheelZoom); |
|
6235 |
|
6236 |
|
6237 /* |
|
6238 * Extends the event handling code with double tap support for mobile browsers. |
|
6239 */ |
|
6240 |
|
6241 L.extend(L.DomEvent, { |
|
6242 |
|
6243 _touchstart: L.Browser.msTouch ? 'MSPointerDown' : 'touchstart', |
|
6244 _touchend: L.Browser.msTouch ? 'MSPointerUp' : 'touchend', |
|
6245 |
|
6246 // inspired by Zepto touch code by Thomas Fuchs |
|
6247 addDoubleTapListener: function (obj, handler, id) { |
|
6248 var last, |
|
6249 doubleTap = false, |
|
6250 delay = 250, |
|
6251 touch, |
|
6252 pre = '_leaflet_', |
|
6253 touchstart = this._touchstart, |
|
6254 touchend = this._touchend, |
|
6255 trackedTouches = []; |
|
6256 |
|
6257 function onTouchStart(e) { |
|
6258 var count; |
|
6259 if (L.Browser.msTouch) { |
|
6260 trackedTouches.push(e.pointerId); |
|
6261 count = trackedTouches.length; |
|
6262 } else { |
|
6263 count = e.touches.length; |
|
6264 } |
|
6265 if (count > 1) { |
|
6266 return; |
|
6267 } |
|
6268 |
|
6269 var now = Date.now(), |
|
6270 delta = now - (last || now); |
|
6271 |
|
6272 touch = e.touches ? e.touches[0] : e; |
|
6273 doubleTap = (delta > 0 && delta <= delay); |
|
6274 last = now; |
|
6275 } |
|
6276 |
|
6277 function onTouchEnd(e) { |
|
6278 /*jshint forin:false */ |
|
6279 if (L.Browser.msTouch) { |
|
6280 var idx = trackedTouches.indexOf(e.pointerId); |
|
6281 if (idx === -1) { |
|
6282 return; |
|
6283 } |
|
6284 trackedTouches.splice(idx, 1); |
|
6285 } |
|
6286 |
|
6287 if (doubleTap) { |
|
6288 if (L.Browser.msTouch) { |
|
6289 //Work around .type being readonly with MSPointer* events |
|
6290 var newTouch = { }, |
|
6291 prop; |
|
6292 |
|
6293 for (var i in touch) { |
|
6294 prop = touch[i]; |
|
6295 if (typeof prop === 'function') { |
|
6296 newTouch[i] = prop.bind(touch); |
|
6297 } else { |
|
6298 newTouch[i] = prop; |
|
6299 } |
|
6300 } |
|
6301 touch = newTouch; |
|
6302 } |
|
6303 touch.type = 'dblclick'; |
|
6304 handler(touch); |
|
6305 last = null; |
|
6306 } |
|
6307 } |
|
6308 obj[pre + touchstart + id] = onTouchStart; |
|
6309 obj[pre + touchend + id] = onTouchEnd; |
|
6310 |
|
6311 //On msTouch we need to listen on the document otherwise a drag starting on the map and moving off screen will not come through to us |
|
6312 // so we will lose track of how many touches are ongoing |
|
6313 var endElement = L.Browser.msTouch ? document.documentElement : obj; |
|
6314 |
|
6315 obj.addEventListener(touchstart, onTouchStart, false); |
|
6316 endElement.addEventListener(touchend, onTouchEnd, false); |
|
6317 if (L.Browser.msTouch) { |
|
6318 endElement.addEventListener('MSPointerCancel', onTouchEnd, false); |
|
6319 } |
|
6320 return this; |
|
6321 }, |
|
6322 |
|
6323 removeDoubleTapListener: function (obj, id) { |
|
6324 var pre = '_leaflet_'; |
|
6325 obj.removeEventListener(this._touchstart, obj[pre + this._touchstart + id], false); |
|
6326 (L.Browser.msTouch ? document.documentElement : obj).removeEventListener(this._touchend, obj[pre + this._touchend + id], false); |
|
6327 if (L.Browser.msTouch) { |
|
6328 document.documentElement.removeEventListener('MSPointerCancel', obj[pre + this._touchend + id], false); |
|
6329 } |
|
6330 return this; |
|
6331 } |
|
6332 }); |
|
6333 |
|
6334 |
|
6335 /* |
|
6336 * Extends L.DomEvent to provide touch support for Internet Explorer and Windows-based devices. |
|
6337 */ |
|
6338 |
|
6339 L.extend(L.DomEvent, { |
|
6340 |
|
6341 _msTouches: [], |
|
6342 _msDocumentListener: false, |
|
6343 |
|
6344 // Provides a touch events wrapper for msPointer events. |
|
6345 // Based on changes by veproza https://github.com/CloudMade/Leaflet/pull/1019 |
|
6346 |
|
6347 addMsTouchListener: function (obj, type, handler, id) { |
|
6348 |
|
6349 switch (type) { |
|
6350 case 'touchstart': |
|
6351 return this.addMsTouchListenerStart(obj, type, handler, id); |
|
6352 case 'touchend': |
|
6353 return this.addMsTouchListenerEnd(obj, type, handler, id); |
|
6354 case 'touchmove': |
|
6355 return this.addMsTouchListenerMove(obj, type, handler, id); |
|
6356 default: |
|
6357 throw 'Unknown touch event type'; |
|
6358 } |
|
6359 }, |
|
6360 |
|
6361 addMsTouchListenerStart: function (obj, type, handler, id) { |
|
6362 var pre = '_leaflet_', |
|
6363 touches = this._msTouches; |
|
6364 |
|
6365 var cb = function (e) { |
|
6366 |
|
6367 var alreadyInArray = false; |
|
6368 for (var i = 0; i < touches.length; i++) { |
|
6369 if (touches[i].pointerId === e.pointerId) { |
|
6370 alreadyInArray = true; |
|
6371 break; |
|
6372 } |
|
6373 } |
|
6374 if (!alreadyInArray) { |
|
6375 touches.push(e); |
|
6376 } |
|
6377 |
|
6378 e.touches = touches.slice(); |
|
6379 e.changedTouches = [e]; |
|
6380 |
|
6381 handler(e); |
|
6382 }; |
|
6383 |
|
6384 obj[pre + 'touchstart' + id] = cb; |
|
6385 obj.addEventListener('MSPointerDown', cb, false); |
|
6386 |
|
6387 // need to also listen for end events to keep the _msTouches list accurate |
|
6388 // this needs to be on the body and never go away |
|
6389 if (!this._msDocumentListener) { |
|
6390 var internalCb = function (e) { |
|
6391 for (var i = 0; i < touches.length; i++) { |
|
6392 if (touches[i].pointerId === e.pointerId) { |
|
6393 touches.splice(i, 1); |
|
6394 break; |
|
6395 } |
|
6396 } |
|
6397 }; |
|
6398 //We listen on the documentElement as any drags that end by moving the touch off the screen get fired there |
|
6399 document.documentElement.addEventListener('MSPointerUp', internalCb, false); |
|
6400 document.documentElement.addEventListener('MSPointerCancel', internalCb, false); |
|
6401 |
|
6402 this._msDocumentListener = true; |
|
6403 } |
|
6404 |
|
6405 return this; |
|
6406 }, |
|
6407 |
|
6408 addMsTouchListenerMove: function (obj, type, handler, id) { |
|
6409 var pre = '_leaflet_', |
|
6410 touches = this._msTouches; |
|
6411 |
|
6412 function cb(e) { |
|
6413 |
|
6414 // don't fire touch moves when mouse isn't down |
|
6415 if (e.pointerType === e.MSPOINTER_TYPE_MOUSE && e.buttons === 0) { return; } |
|
6416 |
|
6417 for (var i = 0; i < touches.length; i++) { |
|
6418 if (touches[i].pointerId === e.pointerId) { |
|
6419 touches[i] = e; |
|
6420 break; |
|
6421 } |
|
6422 } |
|
6423 |
|
6424 e.touches = touches.slice(); |
|
6425 e.changedTouches = [e]; |
|
6426 |
|
6427 handler(e); |
|
6428 } |
|
6429 |
|
6430 obj[pre + 'touchmove' + id] = cb; |
|
6431 obj.addEventListener('MSPointerMove', cb, false); |
|
6432 |
|
6433 return this; |
|
6434 }, |
|
6435 |
|
6436 addMsTouchListenerEnd: function (obj, type, handler, id) { |
|
6437 var pre = '_leaflet_', |
|
6438 touches = this._msTouches; |
|
6439 |
|
6440 var cb = function (e) { |
|
6441 for (var i = 0; i < touches.length; i++) { |
|
6442 if (touches[i].pointerId === e.pointerId) { |
|
6443 touches.splice(i, 1); |
|
6444 break; |
|
6445 } |
|
6446 } |
|
6447 |
|
6448 e.touches = touches.slice(); |
|
6449 e.changedTouches = [e]; |
|
6450 |
|
6451 handler(e); |
|
6452 }; |
|
6453 |
|
6454 obj[pre + 'touchend' + id] = cb; |
|
6455 obj.addEventListener('MSPointerUp', cb, false); |
|
6456 obj.addEventListener('MSPointerCancel', cb, false); |
|
6457 |
|
6458 return this; |
|
6459 }, |
|
6460 |
|
6461 removeMsTouchListener: function (obj, type, id) { |
|
6462 var pre = '_leaflet_', |
|
6463 cb = obj[pre + type + id]; |
|
6464 |
|
6465 switch (type) { |
|
6466 case 'touchstart': |
|
6467 obj.removeEventListener('MSPointerDown', cb, false); |
|
6468 break; |
|
6469 case 'touchmove': |
|
6470 obj.removeEventListener('MSPointerMove', cb, false); |
|
6471 break; |
|
6472 case 'touchend': |
|
6473 obj.removeEventListener('MSPointerUp', cb, false); |
|
6474 obj.removeEventListener('MSPointerCancel', cb, false); |
|
6475 break; |
|
6476 } |
|
6477 |
|
6478 return this; |
|
6479 } |
|
6480 }); |
|
6481 |
|
6482 |
|
6483 /* |
|
6484 * L.Handler.TouchZoom is used by L.Map to add pinch zoom on supported mobile browsers. |
|
6485 */ |
|
6486 |
|
6487 L.Map.mergeOptions({ |
|
6488 touchZoom: L.Browser.touch && !L.Browser.android23 |
|
6489 }); |
|
6490 |
|
6491 L.Map.TouchZoom = L.Handler.extend({ |
|
6492 addHooks: function () { |
|
6493 L.DomEvent.on(this._map._container, 'touchstart', this._onTouchStart, this); |
|
6494 }, |
|
6495 |
|
6496 removeHooks: function () { |
|
6497 L.DomEvent.off(this._map._container, 'touchstart', this._onTouchStart, this); |
|
6498 }, |
|
6499 |
|
6500 _onTouchStart: function (e) { |
|
6501 var map = this._map; |
|
6502 |
|
6503 if (!e.touches || e.touches.length !== 2 || map._animatingZoom || this._zooming) { return; } |
|
6504 |
|
6505 var p1 = map.mouseEventToLayerPoint(e.touches[0]), |
|
6506 p2 = map.mouseEventToLayerPoint(e.touches[1]), |
|
6507 viewCenter = map._getCenterLayerPoint(); |
|
6508 |
|
6509 this._startCenter = p1.add(p2)._divideBy(2); |
|
6510 this._startDist = p1.distanceTo(p2); |
|
6511 |
|
6512 this._moved = false; |
|
6513 this._zooming = true; |
|
6514 |
|
6515 this._centerOffset = viewCenter.subtract(this._startCenter); |
|
6516 |
|
6517 if (map._panAnim) { |
|
6518 map._panAnim.stop(); |
|
6519 } |
|
6520 |
|
6521 L.DomEvent |
|
6522 .on(document, 'touchmove', this._onTouchMove, this) |
|
6523 .on(document, 'touchend', this._onTouchEnd, this); |
|
6524 |
|
6525 L.DomEvent.preventDefault(e); |
|
6526 }, |
|
6527 |
|
6528 _onTouchMove: function (e) { |
|
6529 if (!e.touches || e.touches.length !== 2) { return; } |
|
6530 |
|
6531 var map = this._map; |
|
6532 |
|
6533 var p1 = map.mouseEventToLayerPoint(e.touches[0]), |
|
6534 p2 = map.mouseEventToLayerPoint(e.touches[1]); |
|
6535 |
|
6536 this._scale = p1.distanceTo(p2) / this._startDist; |
|
6537 this._delta = p1._add(p2)._divideBy(2)._subtract(this._startCenter); |
|
6538 |
|
6539 if (this._scale === 1) { return; } |
|
6540 |
|
6541 if (!this._moved) { |
|
6542 L.DomUtil.addClass(map._mapPane, 'leaflet-zoom-anim leaflet-touching'); |
|
6543 |
|
6544 map |
|
6545 .fire('movestart') |
|
6546 .fire('zoomstart') |
|
6547 ._prepareTileBg(); |
|
6548 |
|
6549 this._moved = true; |
|
6550 } |
|
6551 |
|
6552 L.Util.cancelAnimFrame(this._animRequest); |
|
6553 this._animRequest = L.Util.requestAnimFrame( |
|
6554 this._updateOnMove, this, true, this._map._container); |
|
6555 |
|
6556 L.DomEvent.preventDefault(e); |
|
6557 }, |
|
6558 |
|
6559 _updateOnMove: function () { |
|
6560 var map = this._map, |
|
6561 origin = this._getScaleOrigin(), |
|
6562 center = map.layerPointToLatLng(origin); |
|
6563 |
|
6564 map.fire('zoomanim', { |
|
6565 center: center, |
|
6566 zoom: map.getScaleZoom(this._scale) |
|
6567 }); |
|
6568 |
|
6569 // Used 2 translates instead of transform-origin because of a very strange bug - |
|
6570 // it didn't count the origin on the first touch-zoom but worked correctly afterwards |
|
6571 |
|
6572 map._tileBg.style[L.DomUtil.TRANSFORM] = |
|
6573 L.DomUtil.getTranslateString(this._delta) + ' ' + |
|
6574 L.DomUtil.getScaleString(this._scale, this._startCenter); |
|
6575 }, |
|
6576 |
|
6577 _onTouchEnd: function () { |
|
6578 if (!this._moved || !this._zooming) { return; } |
|
6579 |
|
6580 var map = this._map; |
|
6581 |
|
6582 this._zooming = false; |
|
6583 L.DomUtil.removeClass(map._mapPane, 'leaflet-touching'); |
|
6584 |
|
6585 L.DomEvent |
|
6586 .off(document, 'touchmove', this._onTouchMove) |
|
6587 .off(document, 'touchend', this._onTouchEnd); |
|
6588 |
|
6589 var origin = this._getScaleOrigin(), |
|
6590 center = map.layerPointToLatLng(origin), |
|
6591 |
|
6592 oldZoom = map.getZoom(), |
|
6593 floatZoomDelta = map.getScaleZoom(this._scale) - oldZoom, |
|
6594 roundZoomDelta = (floatZoomDelta > 0 ? |
|
6595 Math.ceil(floatZoomDelta) : Math.floor(floatZoomDelta)), |
|
6596 |
|
6597 zoom = map._limitZoom(oldZoom + roundZoomDelta); |
|
6598 |
|
6599 map.fire('zoomanim', { |
|
6600 center: center, |
|
6601 zoom: zoom |
|
6602 }); |
|
6603 |
|
6604 map._runAnimation(center, zoom, map.getZoomScale(zoom) / this._scale, origin, true); |
|
6605 }, |
|
6606 |
|
6607 _getScaleOrigin: function () { |
|
6608 var centerOffset = this._centerOffset.subtract(this._delta).divideBy(this._scale); |
|
6609 return this._startCenter.add(centerOffset); |
|
6610 } |
|
6611 }); |
|
6612 |
|
6613 L.Map.addInitHook('addHandler', 'touchZoom', L.Map.TouchZoom); |
|
6614 |
|
6615 |
|
6616 /* |
|
6617 * L.Handler.ShiftDragZoom is used to add shift-drag zoom interaction to the map |
|
6618 * (zoom to a selected bounding box), enabled by default. |
|
6619 */ |
|
6620 |
|
6621 L.Map.mergeOptions({ |
|
6622 boxZoom: true |
|
6623 }); |
|
6624 |
|
6625 L.Map.BoxZoom = L.Handler.extend({ |
|
6626 initialize: function (map) { |
|
6627 this._map = map; |
|
6628 this._container = map._container; |
|
6629 this._pane = map._panes.overlayPane; |
|
6630 }, |
|
6631 |
|
6632 addHooks: function () { |
|
6633 L.DomEvent.on(this._container, 'mousedown', this._onMouseDown, this); |
|
6634 }, |
|
6635 |
|
6636 removeHooks: function () { |
|
6637 L.DomEvent.off(this._container, 'mousedown', this._onMouseDown); |
|
6638 }, |
|
6639 |
|
6640 _onMouseDown: function (e) { |
|
6641 if (!e.shiftKey || ((e.which !== 1) && (e.button !== 1))) { return false; } |
|
6642 |
|
6643 L.DomUtil.disableTextSelection(); |
|
6644 |
|
6645 this._startLayerPoint = this._map.mouseEventToLayerPoint(e); |
|
6646 |
|
6647 this._box = L.DomUtil.create('div', 'leaflet-zoom-box', this._pane); |
|
6648 L.DomUtil.setPosition(this._box, this._startLayerPoint); |
|
6649 |
|
6650 //TODO refactor: move cursor to styles |
|
6651 this._container.style.cursor = 'crosshair'; |
|
6652 |
|
6653 L.DomEvent |
|
6654 .on(document, 'mousemove', this._onMouseMove, this) |
|
6655 .on(document, 'mouseup', this._onMouseUp, this) |
|
6656 .preventDefault(e); |
|
6657 |
|
6658 this._map.fire("boxzoomstart"); |
|
6659 }, |
|
6660 |
|
6661 _onMouseMove: function (e) { |
|
6662 var startPoint = this._startLayerPoint, |
|
6663 box = this._box, |
|
6664 |
|
6665 layerPoint = this._map.mouseEventToLayerPoint(e), |
|
6666 offset = layerPoint.subtract(startPoint), |
|
6667 |
|
6668 newPos = new L.Point( |
|
6669 Math.min(layerPoint.x, startPoint.x), |
|
6670 Math.min(layerPoint.y, startPoint.y)); |
|
6671 |
|
6672 L.DomUtil.setPosition(box, newPos); |
|
6673 |
|
6674 // TODO refactor: remove hardcoded 4 pixels |
|
6675 box.style.width = (Math.max(0, Math.abs(offset.x) - 4)) + 'px'; |
|
6676 box.style.height = (Math.max(0, Math.abs(offset.y) - 4)) + 'px'; |
|
6677 }, |
|
6678 |
|
6679 _onMouseUp: function (e) { |
|
6680 this._pane.removeChild(this._box); |
|
6681 this._container.style.cursor = ''; |
|
6682 |
|
6683 L.DomUtil.enableTextSelection(); |
|
6684 |
|
6685 L.DomEvent |
|
6686 .off(document, 'mousemove', this._onMouseMove) |
|
6687 .off(document, 'mouseup', this._onMouseUp); |
|
6688 |
|
6689 var map = this._map, |
|
6690 layerPoint = map.mouseEventToLayerPoint(e); |
|
6691 |
|
6692 if (this._startLayerPoint.equals(layerPoint)) { return; } |
|
6693 |
|
6694 var bounds = new L.LatLngBounds( |
|
6695 map.layerPointToLatLng(this._startLayerPoint), |
|
6696 map.layerPointToLatLng(layerPoint)); |
|
6697 |
|
6698 map.fitBounds(bounds); |
|
6699 |
|
6700 map.fire("boxzoomend", { |
|
6701 boxZoomBounds: bounds |
|
6702 }); |
|
6703 } |
|
6704 }); |
|
6705 |
|
6706 L.Map.addInitHook('addHandler', 'boxZoom', L.Map.BoxZoom); |
|
6707 |
|
6708 |
|
6709 /* |
|
6710 * L.Map.Keyboard is handling keyboard interaction with the map, enabled by default. |
|
6711 */ |
|
6712 |
|
6713 L.Map.mergeOptions({ |
|
6714 keyboard: true, |
|
6715 keyboardPanOffset: 80, |
|
6716 keyboardZoomOffset: 1 |
|
6717 }); |
|
6718 |
|
6719 L.Map.Keyboard = L.Handler.extend({ |
|
6720 |
|
6721 keyCodes: { |
|
6722 left: [37], |
|
6723 right: [39], |
|
6724 down: [40], |
|
6725 up: [38], |
|
6726 zoomIn: [187, 107, 61], |
|
6727 zoomOut: [189, 109, 173] |
|
6728 }, |
|
6729 |
|
6730 initialize: function (map) { |
|
6731 this._map = map; |
|
6732 |
|
6733 this._setPanOffset(map.options.keyboardPanOffset); |
|
6734 this._setZoomOffset(map.options.keyboardZoomOffset); |
|
6735 }, |
|
6736 |
|
6737 addHooks: function () { |
|
6738 var container = this._map._container; |
|
6739 |
|
6740 // make the container focusable by tabbing |
|
6741 if (container.tabIndex === -1) { |
|
6742 container.tabIndex = "0"; |
|
6743 } |
|
6744 |
|
6745 L.DomEvent |
|
6746 .on(container, 'focus', this._onFocus, this) |
|
6747 .on(container, 'blur', this._onBlur, this) |
|
6748 .on(container, 'mousedown', this._onMouseDown, this); |
|
6749 |
|
6750 this._map |
|
6751 .on('focus', this._addHooks, this) |
|
6752 .on('blur', this._removeHooks, this); |
|
6753 }, |
|
6754 |
|
6755 removeHooks: function () { |
|
6756 this._removeHooks(); |
|
6757 |
|
6758 var container = this._map._container; |
|
6759 |
|
6760 L.DomEvent |
|
6761 .off(container, 'focus', this._onFocus, this) |
|
6762 .off(container, 'blur', this._onBlur, this) |
|
6763 .off(container, 'mousedown', this._onMouseDown, this); |
|
6764 |
|
6765 this._map |
|
6766 .off('focus', this._addHooks, this) |
|
6767 .off('blur', this._removeHooks, this); |
|
6768 }, |
|
6769 |
|
6770 _onMouseDown: function () { |
|
6771 if (!this._focused) { |
|
6772 this._map._container.focus(); |
|
6773 } |
|
6774 }, |
|
6775 |
|
6776 _onFocus: function () { |
|
6777 this._focused = true; |
|
6778 this._map.fire('focus'); |
|
6779 }, |
|
6780 |
|
6781 _onBlur: function () { |
|
6782 this._focused = false; |
|
6783 this._map.fire('blur'); |
|
6784 }, |
|
6785 |
|
6786 _setPanOffset: function (pan) { |
|
6787 var keys = this._panKeys = {}, |
|
6788 codes = this.keyCodes, |
|
6789 i, len; |
|
6790 |
|
6791 for (i = 0, len = codes.left.length; i < len; i++) { |
|
6792 keys[codes.left[i]] = [-1 * pan, 0]; |
|
6793 } |
|
6794 for (i = 0, len = codes.right.length; i < len; i++) { |
|
6795 keys[codes.right[i]] = [pan, 0]; |
|
6796 } |
|
6797 for (i = 0, len = codes.down.length; i < len; i++) { |
|
6798 keys[codes.down[i]] = [0, pan]; |
|
6799 } |
|
6800 for (i = 0, len = codes.up.length; i < len; i++) { |
|
6801 keys[codes.up[i]] = [0, -1 * pan]; |
|
6802 } |
|
6803 }, |
|
6804 |
|
6805 _setZoomOffset: function (zoom) { |
|
6806 var keys = this._zoomKeys = {}, |
|
6807 codes = this.keyCodes, |
|
6808 i, len; |
|
6809 |
|
6810 for (i = 0, len = codes.zoomIn.length; i < len; i++) { |
|
6811 keys[codes.zoomIn[i]] = zoom; |
|
6812 } |
|
6813 for (i = 0, len = codes.zoomOut.length; i < len; i++) { |
|
6814 keys[codes.zoomOut[i]] = -zoom; |
|
6815 } |
|
6816 }, |
|
6817 |
|
6818 _addHooks: function () { |
|
6819 L.DomEvent.on(document, 'keydown', this._onKeyDown, this); |
|
6820 }, |
|
6821 |
|
6822 _removeHooks: function () { |
|
6823 L.DomEvent.off(document, 'keydown', this._onKeyDown, this); |
|
6824 }, |
|
6825 |
|
6826 _onKeyDown: function (e) { |
|
6827 var key = e.keyCode, |
|
6828 map = this._map; |
|
6829 |
|
6830 if (this._panKeys.hasOwnProperty(key)) { |
|
6831 map.panBy(this._panKeys[key]); |
|
6832 |
|
6833 if (map.options.maxBounds) { |
|
6834 map.panInsideBounds(map.options.maxBounds); |
|
6835 } |
|
6836 |
|
6837 } else if (this._zoomKeys.hasOwnProperty(key)) { |
|
6838 map.setZoom(map.getZoom() + this._zoomKeys[key]); |
|
6839 |
|
6840 } else { |
|
6841 return; |
|
6842 } |
|
6843 |
|
6844 L.DomEvent.stop(e); |
|
6845 } |
|
6846 }); |
|
6847 |
|
6848 L.Map.addInitHook('addHandler', 'keyboard', L.Map.Keyboard); |
|
6849 |
|
6850 |
|
6851 /* |
|
6852 * L.Handler.MarkerDrag is used internally by L.Marker to make the markers draggable. |
|
6853 */ |
|
6854 |
|
6855 L.Handler.MarkerDrag = L.Handler.extend({ |
|
6856 initialize: function (marker) { |
|
6857 this._marker = marker; |
|
6858 }, |
|
6859 |
|
6860 addHooks: function () { |
|
6861 var icon = this._marker._icon; |
|
6862 if (!this._draggable) { |
|
6863 this._draggable = new L.Draggable(icon, icon) |
|
6864 .on('dragstart', this._onDragStart, this) |
|
6865 .on('drag', this._onDrag, this) |
|
6866 .on('dragend', this._onDragEnd, this); |
|
6867 } |
|
6868 this._draggable.enable(); |
|
6869 }, |
|
6870 |
|
6871 removeHooks: function () { |
|
6872 this._draggable.disable(); |
|
6873 }, |
|
6874 |
|
6875 moved: function () { |
|
6876 return this._draggable && this._draggable._moved; |
|
6877 }, |
|
6878 |
|
6879 _onDragStart: function () { |
|
6880 this._marker |
|
6881 .closePopup() |
|
6882 .fire('movestart') |
|
6883 .fire('dragstart'); |
|
6884 }, |
|
6885 |
|
6886 _onDrag: function () { |
|
6887 var marker = this._marker, |
|
6888 shadow = marker._shadow, |
|
6889 iconPos = L.DomUtil.getPosition(marker._icon), |
|
6890 latlng = marker._map.layerPointToLatLng(iconPos); |
|
6891 |
|
6892 // update shadow position |
|
6893 if (shadow) { |
|
6894 L.DomUtil.setPosition(shadow, iconPos); |
|
6895 } |
|
6896 |
|
6897 marker._latlng = latlng; |
|
6898 |
|
6899 marker |
|
6900 .fire('move', {latlng: latlng}) |
|
6901 .fire('drag'); |
|
6902 }, |
|
6903 |
|
6904 _onDragEnd: function () { |
|
6905 this._marker |
|
6906 .fire('moveend') |
|
6907 .fire('dragend'); |
|
6908 } |
|
6909 }); |
|
6910 |
|
6911 |
|
6912 /* |
|
6913 * L.Handler.PolyEdit is an editing handler for polylines and polygons. |
|
6914 */ |
|
6915 |
|
6916 L.Handler.PolyEdit = L.Handler.extend({ |
|
6917 options: { |
|
6918 icon: new L.DivIcon({ |
|
6919 iconSize: new L.Point(8, 8), |
|
6920 className: 'leaflet-div-icon leaflet-editing-icon' |
|
6921 }) |
|
6922 }, |
|
6923 |
|
6924 initialize: function (poly, options) { |
|
6925 this._poly = poly; |
|
6926 L.setOptions(this, options); |
|
6927 }, |
|
6928 |
|
6929 addHooks: function () { |
|
6930 if (this._poly._map) { |
|
6931 if (!this._markerGroup) { |
|
6932 this._initMarkers(); |
|
6933 } |
|
6934 this._poly._map.addLayer(this._markerGroup); |
|
6935 } |
|
6936 }, |
|
6937 |
|
6938 removeHooks: function () { |
|
6939 if (this._poly._map) { |
|
6940 this._poly._map.removeLayer(this._markerGroup); |
|
6941 delete this._markerGroup; |
|
6942 delete this._markers; |
|
6943 } |
|
6944 }, |
|
6945 |
|
6946 updateMarkers: function () { |
|
6947 this._markerGroup.clearLayers(); |
|
6948 this._initMarkers(); |
|
6949 }, |
|
6950 |
|
6951 _initMarkers: function () { |
|
6952 if (!this._markerGroup) { |
|
6953 this._markerGroup = new L.LayerGroup(); |
|
6954 } |
|
6955 this._markers = []; |
|
6956 |
|
6957 var latlngs = this._poly._latlngs, |
|
6958 i, j, len, marker; |
|
6959 |
|
6960 // TODO refactor holes implementation in Polygon to support it here |
|
6961 |
|
6962 for (i = 0, len = latlngs.length; i < len; i++) { |
|
6963 |
|
6964 marker = this._createMarker(latlngs[i], i); |
|
6965 marker.on('click', this._onMarkerClick, this); |
|
6966 this._markers.push(marker); |
|
6967 } |
|
6968 |
|
6969 var markerLeft, markerRight; |
|
6970 |
|
6971 for (i = 0, j = len - 1; i < len; j = i++) { |
|
6972 if (i === 0 && !(L.Polygon && (this._poly instanceof L.Polygon))) { |
|
6973 continue; |
|
6974 } |
|
6975 |
|
6976 markerLeft = this._markers[j]; |
|
6977 markerRight = this._markers[i]; |
|
6978 |
|
6979 this._createMiddleMarker(markerLeft, markerRight); |
|
6980 this._updatePrevNext(markerLeft, markerRight); |
|
6981 } |
|
6982 }, |
|
6983 |
|
6984 _createMarker: function (latlng, index) { |
|
6985 var marker = new L.Marker(latlng, { |
|
6986 draggable: true, |
|
6987 icon: this.options.icon |
|
6988 }); |
|
6989 |
|
6990 marker._origLatLng = latlng; |
|
6991 marker._index = index; |
|
6992 |
|
6993 marker.on('drag', this._onMarkerDrag, this); |
|
6994 marker.on('dragend', this._fireEdit, this); |
|
6995 |
|
6996 this._markerGroup.addLayer(marker); |
|
6997 |
|
6998 return marker; |
|
6999 }, |
|
7000 |
|
7001 _fireEdit: function () { |
|
7002 this._poly.fire('edit'); |
|
7003 }, |
|
7004 |
|
7005 _onMarkerDrag: function (e) { |
|
7006 var marker = e.target; |
|
7007 |
|
7008 L.extend(marker._origLatLng, marker._latlng); |
|
7009 |
|
7010 if (marker._middleLeft) { |
|
7011 marker._middleLeft.setLatLng(this._getMiddleLatLng(marker._prev, marker)); |
|
7012 } |
|
7013 if (marker._middleRight) { |
|
7014 marker._middleRight.setLatLng(this._getMiddleLatLng(marker, marker._next)); |
|
7015 } |
|
7016 |
|
7017 this._poly.redraw(); |
|
7018 }, |
|
7019 |
|
7020 _onMarkerClick: function (e) { |
|
7021 // we want to remove the marker on click, but if latlng count < 3, polyline would be invalid |
|
7022 if (this._poly._latlngs.length < 3) { return; } |
|
7023 |
|
7024 var marker = e.target, |
|
7025 i = marker._index; |
|
7026 |
|
7027 // remove the marker |
|
7028 this._markerGroup.removeLayer(marker); |
|
7029 this._markers.splice(i, 1); |
|
7030 this._poly.spliceLatLngs(i, 1); |
|
7031 this._updateIndexes(i, -1); |
|
7032 |
|
7033 // update prev/next links of adjacent markers |
|
7034 this._updatePrevNext(marker._prev, marker._next); |
|
7035 |
|
7036 // remove ghost markers near the removed marker |
|
7037 if (marker._middleLeft) { |
|
7038 this._markerGroup.removeLayer(marker._middleLeft); |
|
7039 } |
|
7040 if (marker._middleRight) { |
|
7041 this._markerGroup.removeLayer(marker._middleRight); |
|
7042 } |
|
7043 |
|
7044 // create a ghost marker in place of the removed one |
|
7045 if (marker._prev && marker._next) { |
|
7046 this._createMiddleMarker(marker._prev, marker._next); |
|
7047 |
|
7048 } else if (!marker._prev) { |
|
7049 marker._next._middleLeft = null; |
|
7050 |
|
7051 } else if (!marker._next) { |
|
7052 marker._prev._middleRight = null; |
|
7053 } |
|
7054 |
|
7055 this._poly.fire('edit'); |
|
7056 }, |
|
7057 |
|
7058 _updateIndexes: function (index, delta) { |
|
7059 this._markerGroup.eachLayer(function (marker) { |
|
7060 if (marker._index > index) { |
|
7061 marker._index += delta; |
|
7062 } |
|
7063 }); |
|
7064 }, |
|
7065 |
|
7066 _createMiddleMarker: function (marker1, marker2) { |
|
7067 var latlng = this._getMiddleLatLng(marker1, marker2), |
|
7068 marker = this._createMarker(latlng), |
|
7069 onClick, |
|
7070 onDragStart, |
|
7071 onDragEnd; |
|
7072 |
|
7073 marker.setOpacity(0.6); |
|
7074 |
|
7075 marker1._middleRight = marker2._middleLeft = marker; |
|
7076 |
|
7077 onDragStart = function () { |
|
7078 var i = marker2._index; |
|
7079 |
|
7080 marker._index = i; |
|
7081 |
|
7082 marker |
|
7083 .off('click', onClick) |
|
7084 .on('click', this._onMarkerClick, this); |
|
7085 |
|
7086 latlng.lat = marker.getLatLng().lat; |
|
7087 latlng.lng = marker.getLatLng().lng; |
|
7088 this._poly.spliceLatLngs(i, 0, latlng); |
|
7089 this._markers.splice(i, 0, marker); |
|
7090 |
|
7091 marker.setOpacity(1); |
|
7092 |
|
7093 this._updateIndexes(i, 1); |
|
7094 marker2._index++; |
|
7095 this._updatePrevNext(marker1, marker); |
|
7096 this._updatePrevNext(marker, marker2); |
|
7097 }; |
|
7098 |
|
7099 onDragEnd = function () { |
|
7100 marker.off('dragstart', onDragStart, this); |
|
7101 marker.off('dragend', onDragEnd, this); |
|
7102 |
|
7103 this._createMiddleMarker(marker1, marker); |
|
7104 this._createMiddleMarker(marker, marker2); |
|
7105 }; |
|
7106 |
|
7107 onClick = function () { |
|
7108 onDragStart.call(this); |
|
7109 onDragEnd.call(this); |
|
7110 this._poly.fire('edit'); |
|
7111 }; |
|
7112 |
|
7113 marker |
|
7114 .on('click', onClick, this) |
|
7115 .on('dragstart', onDragStart, this) |
|
7116 .on('dragend', onDragEnd, this); |
|
7117 |
|
7118 this._markerGroup.addLayer(marker); |
|
7119 }, |
|
7120 |
|
7121 _updatePrevNext: function (marker1, marker2) { |
|
7122 if (marker1) { |
|
7123 marker1._next = marker2; |
|
7124 } |
|
7125 if (marker2) { |
|
7126 marker2._prev = marker1; |
|
7127 } |
|
7128 }, |
|
7129 |
|
7130 _getMiddleLatLng: function (marker1, marker2) { |
|
7131 var map = this._poly._map, |
|
7132 p1 = map.latLngToLayerPoint(marker1.getLatLng()), |
|
7133 p2 = map.latLngToLayerPoint(marker2.getLatLng()); |
|
7134 |
|
7135 return map.layerPointToLatLng(p1._add(p2)._divideBy(2)); |
|
7136 } |
|
7137 }); |
|
7138 |
|
7139 L.Polyline.addInitHook(function () { |
|
7140 |
|
7141 if (L.Handler.PolyEdit) { |
|
7142 this.editing = new L.Handler.PolyEdit(this); |
|
7143 |
|
7144 if (this.options.editable) { |
|
7145 this.editing.enable(); |
|
7146 } |
|
7147 } |
|
7148 |
|
7149 this.on('add', function () { |
|
7150 if (this.editing && this.editing.enabled()) { |
|
7151 this.editing.addHooks(); |
|
7152 } |
|
7153 }); |
|
7154 |
|
7155 this.on('remove', function () { |
|
7156 if (this.editing && this.editing.enabled()) { |
|
7157 this.editing.removeHooks(); |
|
7158 } |
|
7159 }); |
|
7160 }); |
|
7161 |
|
7162 |
|
7163 /* |
|
7164 * L.Control is a base class for implementing map controls. Handles positioning. |
|
7165 * All other controls extend from this class. |
|
7166 */ |
|
7167 |
|
7168 L.Control = L.Class.extend({ |
|
7169 options: { |
|
7170 position: 'topright' |
|
7171 }, |
|
7172 |
|
7173 initialize: function (options) { |
|
7174 L.setOptions(this, options); |
|
7175 }, |
|
7176 |
|
7177 getPosition: function () { |
|
7178 return this.options.position; |
|
7179 }, |
|
7180 |
|
7181 setPosition: function (position) { |
|
7182 var map = this._map; |
|
7183 |
|
7184 if (map) { |
|
7185 map.removeControl(this); |
|
7186 } |
|
7187 |
|
7188 this.options.position = position; |
|
7189 |
|
7190 if (map) { |
|
7191 map.addControl(this); |
|
7192 } |
|
7193 |
|
7194 return this; |
|
7195 }, |
|
7196 |
|
7197 addTo: function (map) { |
|
7198 this._map = map; |
|
7199 |
|
7200 var container = this._container = this.onAdd(map), |
|
7201 pos = this.getPosition(), |
|
7202 corner = map._controlCorners[pos]; |
|
7203 |
|
7204 L.DomUtil.addClass(container, 'leaflet-control'); |
|
7205 |
|
7206 if (pos.indexOf('bottom') !== -1) { |
|
7207 corner.insertBefore(container, corner.firstChild); |
|
7208 } else { |
|
7209 corner.appendChild(container); |
|
7210 } |
|
7211 |
|
7212 return this; |
|
7213 }, |
|
7214 |
|
7215 removeFrom: function (map) { |
|
7216 var pos = this.getPosition(), |
|
7217 corner = map._controlCorners[pos]; |
|
7218 |
|
7219 corner.removeChild(this._container); |
|
7220 this._map = null; |
|
7221 |
|
7222 if (this.onRemove) { |
|
7223 this.onRemove(map); |
|
7224 } |
|
7225 |
|
7226 return this; |
|
7227 } |
|
7228 }); |
|
7229 |
|
7230 L.control = function (options) { |
|
7231 return new L.Control(options); |
|
7232 }; |
|
7233 |
|
7234 |
|
7235 /* |
|
7236 * Adds control-related methods to L.Map. |
|
7237 */ |
|
7238 |
|
7239 L.Map.include({ |
|
7240 addControl: function (control) { |
|
7241 control.addTo(this); |
|
7242 return this; |
|
7243 }, |
|
7244 |
|
7245 removeControl: function (control) { |
|
7246 control.removeFrom(this); |
|
7247 return this; |
|
7248 }, |
|
7249 |
|
7250 _initControlPos: function () { |
|
7251 var corners = this._controlCorners = {}, |
|
7252 l = 'leaflet-', |
|
7253 container = this._controlContainer = |
|
7254 L.DomUtil.create('div', l + 'control-container', this._container); |
|
7255 |
|
7256 function createCorner(vSide, hSide) { |
|
7257 var className = l + vSide + ' ' + l + hSide; |
|
7258 |
|
7259 corners[vSide + hSide] = L.DomUtil.create('div', className, container); |
|
7260 } |
|
7261 |
|
7262 createCorner('top', 'left'); |
|
7263 createCorner('top', 'right'); |
|
7264 createCorner('bottom', 'left'); |
|
7265 createCorner('bottom', 'right'); |
|
7266 } |
|
7267 }); |
|
7268 |
|
7269 |
|
7270 /* |
|
7271 * L.Control.Zoom is used for the default zoom buttons on the map. |
|
7272 */ |
|
7273 |
|
7274 L.Control.Zoom = L.Control.extend({ |
|
7275 options: { |
|
7276 position: 'topleft' |
|
7277 }, |
|
7278 |
|
7279 onAdd: function (map) { |
|
7280 var zoomName = 'leaflet-control-zoom', |
|
7281 barName = 'leaflet-bar', |
|
7282 partName = barName + '-part', |
|
7283 container = L.DomUtil.create('div', zoomName + ' ' + barName); |
|
7284 |
|
7285 this._map = map; |
|
7286 |
|
7287 this._zoomInButton = this._createButton('+', 'Zoom in', |
|
7288 zoomName + '-in ' + |
|
7289 partName + ' ' + |
|
7290 partName + '-top', |
|
7291 container, this._zoomIn, this); |
|
7292 |
|
7293 this._zoomOutButton = this._createButton('-', 'Zoom out', |
|
7294 zoomName + '-out ' + |
|
7295 partName + ' ' + |
|
7296 partName + '-bottom', |
|
7297 container, this._zoomOut, this); |
|
7298 |
|
7299 map.on('zoomend', this._updateDisabled, this); |
|
7300 |
|
7301 return container; |
|
7302 }, |
|
7303 |
|
7304 onRemove: function (map) { |
|
7305 map.off('zoomend', this._updateDisabled, this); |
|
7306 }, |
|
7307 |
|
7308 _zoomIn: function (e) { |
|
7309 this._map.zoomIn(e.shiftKey ? 3 : 1); |
|
7310 }, |
|
7311 |
|
7312 _zoomOut: function (e) { |
|
7313 this._map.zoomOut(e.shiftKey ? 3 : 1); |
|
7314 }, |
|
7315 |
|
7316 _createButton: function (html, title, className, container, fn, context) { |
|
7317 var link = L.DomUtil.create('a', className, container); |
|
7318 link.innerHTML = html; |
|
7319 link.href = '#'; |
|
7320 link.title = title; |
|
7321 |
|
7322 var stop = L.DomEvent.stopPropagation; |
|
7323 |
|
7324 L.DomEvent |
|
7325 .on(link, 'click', stop) |
|
7326 .on(link, 'mousedown', stop) |
|
7327 .on(link, 'dblclick', stop) |
|
7328 .on(link, 'click', L.DomEvent.preventDefault) |
|
7329 .on(link, 'click', fn, context); |
|
7330 |
|
7331 return link; |
|
7332 }, |
|
7333 |
|
7334 _updateDisabled: function () { |
|
7335 var map = this._map, |
|
7336 className = 'leaflet-control-zoom-disabled'; |
|
7337 |
|
7338 L.DomUtil.removeClass(this._zoomInButton, className); |
|
7339 L.DomUtil.removeClass(this._zoomOutButton, className); |
|
7340 |
|
7341 if (map._zoom === map.getMinZoom()) { |
|
7342 L.DomUtil.addClass(this._zoomOutButton, className); |
|
7343 } |
|
7344 if (map._zoom === map.getMaxZoom()) { |
|
7345 L.DomUtil.addClass(this._zoomInButton, className); |
|
7346 } |
|
7347 } |
|
7348 }); |
|
7349 |
|
7350 L.Map.mergeOptions({ |
|
7351 zoomControl: true |
|
7352 }); |
|
7353 |
|
7354 L.Map.addInitHook(function () { |
|
7355 if (this.options.zoomControl) { |
|
7356 this.zoomControl = new L.Control.Zoom(); |
|
7357 this.addControl(this.zoomControl); |
|
7358 } |
|
7359 }); |
|
7360 |
|
7361 L.control.zoom = function (options) { |
|
7362 return new L.Control.Zoom(options); |
|
7363 }; |
|
7364 |
|
7365 |
|
7366 |
|
7367 /* |
|
7368 * L.Control.Attribution is used for displaying attribution on the map (added by default). |
|
7369 */ |
|
7370 |
|
7371 L.Control.Attribution = L.Control.extend({ |
|
7372 options: { |
|
7373 position: 'bottomright', |
|
7374 prefix: 'Powered by <a href="http://leafletjs.com">Leaflet</a>' |
|
7375 }, |
|
7376 |
|
7377 initialize: function (options) { |
|
7378 L.setOptions(this, options); |
|
7379 |
|
7380 this._attributions = {}; |
|
7381 }, |
|
7382 |
|
7383 onAdd: function (map) { |
|
7384 this._container = L.DomUtil.create('div', 'leaflet-control-attribution'); |
|
7385 L.DomEvent.disableClickPropagation(this._container); |
|
7386 |
|
7387 map |
|
7388 .on('layeradd', this._onLayerAdd, this) |
|
7389 .on('layerremove', this._onLayerRemove, this); |
|
7390 |
|
7391 this._update(); |
|
7392 |
|
7393 return this._container; |
|
7394 }, |
|
7395 |
|
7396 onRemove: function (map) { |
|
7397 map |
|
7398 .off('layeradd', this._onLayerAdd) |
|
7399 .off('layerremove', this._onLayerRemove); |
|
7400 |
|
7401 }, |
|
7402 |
|
7403 setPrefix: function (prefix) { |
|
7404 this.options.prefix = prefix; |
|
7405 this._update(); |
|
7406 return this; |
|
7407 }, |
|
7408 |
|
7409 addAttribution: function (text) { |
|
7410 if (!text) { return; } |
|
7411 |
|
7412 if (!this._attributions[text]) { |
|
7413 this._attributions[text] = 0; |
|
7414 } |
|
7415 this._attributions[text]++; |
|
7416 |
|
7417 this._update(); |
|
7418 |
|
7419 return this; |
|
7420 }, |
|
7421 |
|
7422 removeAttribution: function (text) { |
|
7423 if (!text) { return; } |
|
7424 |
|
7425 this._attributions[text]--; |
|
7426 this._update(); |
|
7427 |
|
7428 return this; |
|
7429 }, |
|
7430 |
|
7431 _update: function () { |
|
7432 if (!this._map) { return; } |
|
7433 |
|
7434 var attribs = []; |
|
7435 |
|
7436 for (var i in this._attributions) { |
|
7437 if (this._attributions.hasOwnProperty(i) && this._attributions[i]) { |
|
7438 attribs.push(i); |
|
7439 } |
|
7440 } |
|
7441 |
|
7442 var prefixAndAttribs = []; |
|
7443 |
|
7444 if (this.options.prefix) { |
|
7445 prefixAndAttribs.push(this.options.prefix); |
|
7446 } |
|
7447 if (attribs.length) { |
|
7448 prefixAndAttribs.push(attribs.join(', ')); |
|
7449 } |
|
7450 |
|
7451 this._container.innerHTML = prefixAndAttribs.join(' — '); |
|
7452 }, |
|
7453 |
|
7454 _onLayerAdd: function (e) { |
|
7455 if (e.layer.getAttribution) { |
|
7456 this.addAttribution(e.layer.getAttribution()); |
|
7457 } |
|
7458 }, |
|
7459 |
|
7460 _onLayerRemove: function (e) { |
|
7461 if (e.layer.getAttribution) { |
|
7462 this.removeAttribution(e.layer.getAttribution()); |
|
7463 } |
|
7464 } |
|
7465 }); |
|
7466 |
|
7467 L.Map.mergeOptions({ |
|
7468 attributionControl: true |
|
7469 }); |
|
7470 |
|
7471 L.Map.addInitHook(function () { |
|
7472 if (this.options.attributionControl) { |
|
7473 this.attributionControl = (new L.Control.Attribution()).addTo(this); |
|
7474 } |
|
7475 }); |
|
7476 |
|
7477 L.control.attribution = function (options) { |
|
7478 return new L.Control.Attribution(options); |
|
7479 }; |
|
7480 |
|
7481 |
|
7482 /* |
|
7483 * L.Control.Scale is used for displaying metric/imperial scale on the map. |
|
7484 */ |
|
7485 |
|
7486 L.Control.Scale = L.Control.extend({ |
|
7487 options: { |
|
7488 position: 'bottomleft', |
|
7489 maxWidth: 100, |
|
7490 metric: true, |
|
7491 imperial: true, |
|
7492 updateWhenIdle: false |
|
7493 }, |
|
7494 |
|
7495 onAdd: function (map) { |
|
7496 this._map = map; |
|
7497 |
|
7498 var className = 'leaflet-control-scale', |
|
7499 container = L.DomUtil.create('div', className), |
|
7500 options = this.options; |
|
7501 |
|
7502 this._addScales(options, className, container); |
|
7503 |
|
7504 map.on(options.updateWhenIdle ? 'moveend' : 'move', this._update, this); |
|
7505 map.whenReady(this._update, this); |
|
7506 |
|
7507 return container; |
|
7508 }, |
|
7509 |
|
7510 onRemove: function (map) { |
|
7511 map.off(this.options.updateWhenIdle ? 'moveend' : 'move', this._update, this); |
|
7512 }, |
|
7513 |
|
7514 _addScales: function (options, className, container) { |
|
7515 if (options.metric) { |
|
7516 this._mScale = L.DomUtil.create('div', className + '-line', container); |
|
7517 } |
|
7518 if (options.imperial) { |
|
7519 this._iScale = L.DomUtil.create('div', className + '-line', container); |
|
7520 } |
|
7521 }, |
|
7522 |
|
7523 _update: function () { |
|
7524 var bounds = this._map.getBounds(), |
|
7525 centerLat = bounds.getCenter().lat, |
|
7526 halfWorldMeters = 6378137 * Math.PI * Math.cos(centerLat * Math.PI / 180), |
|
7527 dist = halfWorldMeters * (bounds.getNorthEast().lng - bounds.getSouthWest().lng) / 180, |
|
7528 |
|
7529 size = this._map.getSize(), |
|
7530 options = this.options, |
|
7531 maxMeters = 0; |
|
7532 |
|
7533 if (size.x > 0) { |
|
7534 maxMeters = dist * (options.maxWidth / size.x); |
|
7535 } |
|
7536 |
|
7537 this._updateScales(options, maxMeters); |
|
7538 }, |
|
7539 |
|
7540 _updateScales: function (options, maxMeters) { |
|
7541 if (options.metric && maxMeters) { |
|
7542 this._updateMetric(maxMeters); |
|
7543 } |
|
7544 |
|
7545 if (options.imperial && maxMeters) { |
|
7546 this._updateImperial(maxMeters); |
|
7547 } |
|
7548 }, |
|
7549 |
|
7550 _updateMetric: function (maxMeters) { |
|
7551 var meters = this._getRoundNum(maxMeters); |
|
7552 |
|
7553 this._mScale.style.width = this._getScaleWidth(meters / maxMeters) + 'px'; |
|
7554 this._mScale.innerHTML = meters < 1000 ? meters + ' m' : (meters / 1000) + ' km'; |
|
7555 }, |
|
7556 |
|
7557 _updateImperial: function (maxMeters) { |
|
7558 var maxFeet = maxMeters * 3.2808399, |
|
7559 scale = this._iScale, |
|
7560 maxMiles, miles, feet; |
|
7561 |
|
7562 if (maxFeet > 5280) { |
|
7563 maxMiles = maxFeet / 5280; |
|
7564 miles = this._getRoundNum(maxMiles); |
|
7565 |
|
7566 scale.style.width = this._getScaleWidth(miles / maxMiles) + 'px'; |
|
7567 scale.innerHTML = miles + ' mi'; |
|
7568 |
|
7569 } else { |
|
7570 feet = this._getRoundNum(maxFeet); |
|
7571 |
|
7572 scale.style.width = this._getScaleWidth(feet / maxFeet) + 'px'; |
|
7573 scale.innerHTML = feet + ' ft'; |
|
7574 } |
|
7575 }, |
|
7576 |
|
7577 _getScaleWidth: function (ratio) { |
|
7578 return Math.round(this.options.maxWidth * ratio) - 10; |
|
7579 }, |
|
7580 |
|
7581 _getRoundNum: function (num) { |
|
7582 var pow10 = Math.pow(10, (Math.floor(num) + '').length - 1), |
|
7583 d = num / pow10; |
|
7584 |
|
7585 d = d >= 10 ? 10 : d >= 5 ? 5 : d >= 3 ? 3 : d >= 2 ? 2 : 1; |
|
7586 |
|
7587 return pow10 * d; |
|
7588 } |
|
7589 }); |
|
7590 |
|
7591 L.control.scale = function (options) { |
|
7592 return new L.Control.Scale(options); |
|
7593 }; |
|
7594 |
|
7595 |
|
7596 /* |
|
7597 * L.Control.Layers is a control to allow users to switch between different layers on the map. |
|
7598 */ |
|
7599 |
|
7600 L.Control.Layers = L.Control.extend({ |
|
7601 options: { |
|
7602 collapsed: true, |
|
7603 position: 'topright', |
|
7604 autoZIndex: true |
|
7605 }, |
|
7606 |
|
7607 initialize: function (baseLayers, overlays, options) { |
|
7608 L.setOptions(this, options); |
|
7609 |
|
7610 this._layers = {}; |
|
7611 this._lastZIndex = 0; |
|
7612 this._handlingClick = false; |
|
7613 |
|
7614 for (var i in baseLayers) { |
|
7615 if (baseLayers.hasOwnProperty(i)) { |
|
7616 this._addLayer(baseLayers[i], i); |
|
7617 } |
|
7618 } |
|
7619 |
|
7620 for (i in overlays) { |
|
7621 if (overlays.hasOwnProperty(i)) { |
|
7622 this._addLayer(overlays[i], i, true); |
|
7623 } |
|
7624 } |
|
7625 }, |
|
7626 |
|
7627 onAdd: function (map) { |
|
7628 this._initLayout(); |
|
7629 this._update(); |
|
7630 |
|
7631 map |
|
7632 .on('layeradd', this._onLayerChange, this) |
|
7633 .on('layerremove', this._onLayerChange, this); |
|
7634 |
|
7635 return this._container; |
|
7636 }, |
|
7637 |
|
7638 onRemove: function (map) { |
|
7639 map |
|
7640 .off('layeradd', this._onLayerChange) |
|
7641 .off('layerremove', this._onLayerChange); |
|
7642 }, |
|
7643 |
|
7644 addBaseLayer: function (layer, name) { |
|
7645 this._addLayer(layer, name); |
|
7646 this._update(); |
|
7647 return this; |
|
7648 }, |
|
7649 |
|
7650 addOverlay: function (layer, name) { |
|
7651 this._addLayer(layer, name, true); |
|
7652 this._update(); |
|
7653 return this; |
|
7654 }, |
|
7655 |
|
7656 removeLayer: function (layer) { |
|
7657 var id = L.stamp(layer); |
|
7658 delete this._layers[id]; |
|
7659 this._update(); |
|
7660 return this; |
|
7661 }, |
|
7662 |
|
7663 _initLayout: function () { |
|
7664 var className = 'leaflet-control-layers', |
|
7665 container = this._container = L.DomUtil.create('div', className); |
|
7666 |
|
7667 if (!L.Browser.touch) { |
|
7668 L.DomEvent.disableClickPropagation(container); |
|
7669 L.DomEvent.on(container, 'mousewheel', L.DomEvent.stopPropagation); |
|
7670 } else { |
|
7671 L.DomEvent.on(container, 'click', L.DomEvent.stopPropagation); |
|
7672 } |
|
7673 |
|
7674 var form = this._form = L.DomUtil.create('form', className + '-list'); |
|
7675 |
|
7676 if (this.options.collapsed) { |
|
7677 L.DomEvent |
|
7678 .on(container, 'mouseover', this._expand, this) |
|
7679 .on(container, 'mouseout', this._collapse, this); |
|
7680 |
|
7681 var link = this._layersLink = L.DomUtil.create('a', className + '-toggle', container); |
|
7682 link.href = '#'; |
|
7683 link.title = 'Layers'; |
|
7684 |
|
7685 if (L.Browser.touch) { |
|
7686 L.DomEvent |
|
7687 .on(link, 'click', L.DomEvent.stopPropagation) |
|
7688 .on(link, 'click', L.DomEvent.preventDefault) |
|
7689 .on(link, 'click', this._expand, this); |
|
7690 } |
|
7691 else { |
|
7692 L.DomEvent.on(link, 'focus', this._expand, this); |
|
7693 } |
|
7694 |
|
7695 this._map.on('movestart', this._collapse, this); |
|
7696 // TODO keyboard accessibility |
|
7697 } else { |
|
7698 this._expand(); |
|
7699 } |
|
7700 |
|
7701 this._baseLayersList = L.DomUtil.create('div', className + '-base', form); |
|
7702 this._separator = L.DomUtil.create('div', className + '-separator', form); |
|
7703 this._overlaysList = L.DomUtil.create('div', className + '-overlays', form); |
|
7704 |
|
7705 container.appendChild(form); |
|
7706 }, |
|
7707 |
|
7708 _addLayer: function (layer, name, overlay) { |
|
7709 var id = L.stamp(layer); |
|
7710 |
|
7711 this._layers[id] = { |
|
7712 layer: layer, |
|
7713 name: name, |
|
7714 overlay: overlay |
|
7715 }; |
|
7716 |
|
7717 if (this.options.autoZIndex && layer.setZIndex) { |
|
7718 this._lastZIndex++; |
|
7719 layer.setZIndex(this._lastZIndex); |
|
7720 } |
|
7721 }, |
|
7722 |
|
7723 _update: function () { |
|
7724 if (!this._container) { |
|
7725 return; |
|
7726 } |
|
7727 |
|
7728 this._baseLayersList.innerHTML = ''; |
|
7729 this._overlaysList.innerHTML = ''; |
|
7730 |
|
7731 var baseLayersPresent = false, |
|
7732 overlaysPresent = false; |
|
7733 |
|
7734 for (var i in this._layers) { |
|
7735 if (this._layers.hasOwnProperty(i)) { |
|
7736 var obj = this._layers[i]; |
|
7737 this._addItem(obj); |
|
7738 overlaysPresent = overlaysPresent || obj.overlay; |
|
7739 baseLayersPresent = baseLayersPresent || !obj.overlay; |
|
7740 } |
|
7741 } |
|
7742 |
|
7743 this._separator.style.display = (overlaysPresent && baseLayersPresent ? '' : 'none'); |
|
7744 }, |
|
7745 |
|
7746 _onLayerChange: function (e) { |
|
7747 var id = L.stamp(e.layer); |
|
7748 |
|
7749 if (this._layers[id] && !this._handlingClick) { |
|
7750 this._update(); |
|
7751 } |
|
7752 }, |
|
7753 |
|
7754 // IE7 bugs out if you create a radio dynamically, so you have to do it this hacky way (see http://bit.ly/PqYLBe) |
|
7755 _createRadioElement: function (name, checked) { |
|
7756 |
|
7757 var radioHtml = '<input type="radio" class="leaflet-control-layers-selector" name="' + name + '"'; |
|
7758 if (checked) { |
|
7759 radioHtml += ' checked="checked"'; |
|
7760 } |
|
7761 radioHtml += '/>'; |
|
7762 |
|
7763 var radioFragment = document.createElement('div'); |
|
7764 radioFragment.innerHTML = radioHtml; |
|
7765 |
|
7766 return radioFragment.firstChild; |
|
7767 }, |
|
7768 |
|
7769 _addItem: function (obj) { |
|
7770 var label = document.createElement('label'), |
|
7771 input, |
|
7772 checked = this._map.hasLayer(obj.layer); |
|
7773 |
|
7774 if (obj.overlay) { |
|
7775 input = document.createElement('input'); |
|
7776 input.type = 'checkbox'; |
|
7777 input.className = 'leaflet-control-layers-selector'; |
|
7778 input.defaultChecked = checked; |
|
7779 } else { |
|
7780 input = this._createRadioElement('leaflet-base-layers', checked); |
|
7781 } |
|
7782 |
|
7783 input.layerId = L.stamp(obj.layer); |
|
7784 |
|
7785 L.DomEvent.on(input, 'click', this._onInputClick, this); |
|
7786 |
|
7787 var name = document.createElement('span'); |
|
7788 name.innerHTML = ' ' + obj.name; |
|
7789 |
|
7790 label.appendChild(input); |
|
7791 label.appendChild(name); |
|
7792 |
|
7793 var container = obj.overlay ? this._overlaysList : this._baseLayersList; |
|
7794 container.appendChild(label); |
|
7795 |
|
7796 return label; |
|
7797 }, |
|
7798 |
|
7799 _onInputClick: function () { |
|
7800 var i, input, obj, |
|
7801 inputs = this._form.getElementsByTagName('input'), |
|
7802 inputsLen = inputs.length, |
|
7803 baseLayer; |
|
7804 |
|
7805 this._handlingClick = true; |
|
7806 |
|
7807 for (i = 0; i < inputsLen; i++) { |
|
7808 input = inputs[i]; |
|
7809 obj = this._layers[input.layerId]; |
|
7810 |
|
7811 if (input.checked && !this._map.hasLayer(obj.layer)) { |
|
7812 this._map.addLayer(obj.layer); |
|
7813 if (!obj.overlay) { |
|
7814 baseLayer = obj.layer; |
|
7815 } |
|
7816 } else if (!input.checked && this._map.hasLayer(obj.layer)) { |
|
7817 this._map.removeLayer(obj.layer); |
|
7818 } |
|
7819 } |
|
7820 |
|
7821 if (baseLayer) { |
|
7822 this._map.setZoom(this._map.getZoom()); |
|
7823 this._map.fire('baselayerchange', {layer: baseLayer}); |
|
7824 } |
|
7825 |
|
7826 this._handlingClick = false; |
|
7827 }, |
|
7828 |
|
7829 _expand: function () { |
|
7830 L.DomUtil.addClass(this._container, 'leaflet-control-layers-expanded'); |
|
7831 }, |
|
7832 |
|
7833 _collapse: function () { |
|
7834 this._container.className = this._container.className.replace(' leaflet-control-layers-expanded', ''); |
|
7835 } |
|
7836 }); |
|
7837 |
|
7838 L.control.layers = function (baseLayers, overlays, options) { |
|
7839 return new L.Control.Layers(baseLayers, overlays, options); |
|
7840 }; |
|
7841 |
|
7842 |
|
7843 /* |
|
7844 * L.PosAnimation is used by Leaflet internally for pan animations. |
|
7845 */ |
|
7846 |
|
7847 L.PosAnimation = L.Class.extend({ |
|
7848 includes: L.Mixin.Events, |
|
7849 |
|
7850 run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number]) |
|
7851 this.stop(); |
|
7852 |
|
7853 this._el = el; |
|
7854 this._inProgress = true; |
|
7855 |
|
7856 this.fire('start'); |
|
7857 |
|
7858 el.style[L.DomUtil.TRANSITION] = 'all ' + (duration || 0.25) + |
|
7859 's cubic-bezier(0,0,' + (easeLinearity || 0.5) + ',1)'; |
|
7860 |
|
7861 L.DomEvent.on(el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this); |
|
7862 L.DomUtil.setPosition(el, newPos); |
|
7863 |
|
7864 // toggle reflow, Chrome flickers for some reason if you don't do this |
|
7865 L.Util.falseFn(el.offsetWidth); |
|
7866 |
|
7867 // there's no native way to track value updates of transitioned properties, so we imitate this |
|
7868 this._stepTimer = setInterval(L.bind(this.fire, this, 'step'), 50); |
|
7869 }, |
|
7870 |
|
7871 stop: function () { |
|
7872 if (!this._inProgress) { return; } |
|
7873 |
|
7874 // if we just removed the transition property, the element would jump to its final position, |
|
7875 // so we need to make it stay at the current position |
|
7876 |
|
7877 L.DomUtil.setPosition(this._el, this._getPos()); |
|
7878 this._onTransitionEnd(); |
|
7879 L.Util.falseFn(this._el.offsetWidth); // force reflow in case we are about to start a new animation |
|
7880 }, |
|
7881 |
|
7882 // you can't easily get intermediate values of properties animated with CSS3 Transitions, |
|
7883 // we need to parse computed style (in case of transform it returns matrix string) |
|
7884 |
|
7885 _transformRe: /(-?[\d\.]+), (-?[\d\.]+)\)/, |
|
7886 |
|
7887 _getPos: function () { |
|
7888 var left, top, matches, |
|
7889 el = this._el, |
|
7890 style = window.getComputedStyle(el); |
|
7891 |
|
7892 if (L.Browser.any3d) { |
|
7893 matches = style[L.DomUtil.TRANSFORM].match(this._transformRe); |
|
7894 left = parseFloat(matches[1]); |
|
7895 top = parseFloat(matches[2]); |
|
7896 } else { |
|
7897 left = parseFloat(style.left); |
|
7898 top = parseFloat(style.top); |
|
7899 } |
|
7900 |
|
7901 return new L.Point(left, top, true); |
|
7902 }, |
|
7903 |
|
7904 _onTransitionEnd: function () { |
|
7905 L.DomEvent.off(this._el, L.DomUtil.TRANSITION_END, this._onTransitionEnd, this); |
|
7906 |
|
7907 if (!this._inProgress) { return; } |
|
7908 this._inProgress = false; |
|
7909 |
|
7910 this._el.style[L.DomUtil.TRANSITION] = ''; |
|
7911 |
|
7912 clearInterval(this._stepTimer); |
|
7913 |
|
7914 this.fire('step').fire('end'); |
|
7915 } |
|
7916 |
|
7917 }); |
|
7918 |
|
7919 |
|
7920 /* |
|
7921 * Extends L.Map to handle panning animations. |
|
7922 */ |
|
7923 |
|
7924 L.Map.include({ |
|
7925 |
|
7926 setView: function (center, zoom, forceReset) { |
|
7927 zoom = this._limitZoom(zoom); |
|
7928 |
|
7929 var zoomChanged = (this._zoom !== zoom); |
|
7930 |
|
7931 if (this._loaded && !forceReset && this._layers) { |
|
7932 |
|
7933 if (this._panAnim) { |
|
7934 this._panAnim.stop(); |
|
7935 } |
|
7936 |
|
7937 var done = (zoomChanged ? |
|
7938 this._zoomToIfClose && this._zoomToIfClose(center, zoom) : |
|
7939 this._panByIfClose(center)); |
|
7940 |
|
7941 // exit if animated pan or zoom started |
|
7942 if (done) { |
|
7943 clearTimeout(this._sizeTimer); |
|
7944 return this; |
|
7945 } |
|
7946 } |
|
7947 |
|
7948 // reset the map view |
|
7949 this._resetView(center, zoom); |
|
7950 |
|
7951 return this; |
|
7952 }, |
|
7953 |
|
7954 panBy: function (offset, duration, easeLinearity) { |
|
7955 offset = L.point(offset); |
|
7956 |
|
7957 if (!(offset.x || offset.y)) { |
|
7958 return this; |
|
7959 } |
|
7960 |
|
7961 if (!this._panAnim) { |
|
7962 this._panAnim = new L.PosAnimation(); |
|
7963 |
|
7964 this._panAnim.on({ |
|
7965 'step': this._onPanTransitionStep, |
|
7966 'end': this._onPanTransitionEnd |
|
7967 }, this); |
|
7968 } |
|
7969 |
|
7970 this.fire('movestart'); |
|
7971 |
|
7972 L.DomUtil.addClass(this._mapPane, 'leaflet-pan-anim'); |
|
7973 |
|
7974 var newPos = L.DomUtil.getPosition(this._mapPane).subtract(offset)._round(); |
|
7975 this._panAnim.run(this._mapPane, newPos, duration || 0.25, easeLinearity); |
|
7976 |
|
7977 return this; |
|
7978 }, |
|
7979 |
|
7980 _onPanTransitionStep: function () { |
|
7981 this.fire('move'); |
|
7982 }, |
|
7983 |
|
7984 _onPanTransitionEnd: function () { |
|
7985 L.DomUtil.removeClass(this._mapPane, 'leaflet-pan-anim'); |
|
7986 this.fire('moveend'); |
|
7987 }, |
|
7988 |
|
7989 _panByIfClose: function (center) { |
|
7990 // difference between the new and current centers in pixels |
|
7991 var offset = this._getCenterOffset(center)._floor(); |
|
7992 |
|
7993 if (this._offsetIsWithinView(offset)) { |
|
7994 this.panBy(offset); |
|
7995 return true; |
|
7996 } |
|
7997 return false; |
|
7998 }, |
|
7999 |
|
8000 _offsetIsWithinView: function (offset, multiplyFactor) { |
|
8001 var m = multiplyFactor || 1, |
|
8002 size = this.getSize(); |
|
8003 |
|
8004 return (Math.abs(offset.x) <= size.x * m) && |
|
8005 (Math.abs(offset.y) <= size.y * m); |
|
8006 } |
|
8007 }); |
|
8008 |
|
8009 |
|
8010 /* |
|
8011 * L.PosAnimation fallback implementation that powers Leaflet pan animations |
|
8012 * in browsers that don't support CSS3 Transitions. |
|
8013 */ |
|
8014 |
|
8015 L.PosAnimation = L.DomUtil.TRANSITION ? L.PosAnimation : L.PosAnimation.extend({ |
|
8016 |
|
8017 run: function (el, newPos, duration, easeLinearity) { // (HTMLElement, Point[, Number, Number]) |
|
8018 this.stop(); |
|
8019 |
|
8020 this._el = el; |
|
8021 this._inProgress = true; |
|
8022 this._duration = duration || 0.25; |
|
8023 this._easeOutPower = 1 / Math.max(easeLinearity || 0.5, 0.2); |
|
8024 |
|
8025 this._startPos = L.DomUtil.getPosition(el); |
|
8026 this._offset = newPos.subtract(this._startPos); |
|
8027 this._startTime = +new Date(); |
|
8028 |
|
8029 this.fire('start'); |
|
8030 |
|
8031 this._animate(); |
|
8032 }, |
|
8033 |
|
8034 stop: function () { |
|
8035 if (!this._inProgress) { return; } |
|
8036 |
|
8037 this._step(); |
|
8038 this._complete(); |
|
8039 }, |
|
8040 |
|
8041 _animate: function () { |
|
8042 // animation loop |
|
8043 this._animId = L.Util.requestAnimFrame(this._animate, this); |
|
8044 this._step(); |
|
8045 }, |
|
8046 |
|
8047 _step: function () { |
|
8048 var elapsed = (+new Date()) - this._startTime, |
|
8049 duration = this._duration * 1000; |
|
8050 |
|
8051 if (elapsed < duration) { |
|
8052 this._runFrame(this._easeOut(elapsed / duration)); |
|
8053 } else { |
|
8054 this._runFrame(1); |
|
8055 this._complete(); |
|
8056 } |
|
8057 }, |
|
8058 |
|
8059 _runFrame: function (progress) { |
|
8060 var pos = this._startPos.add(this._offset.multiplyBy(progress)); |
|
8061 L.DomUtil.setPosition(this._el, pos); |
|
8062 |
|
8063 this.fire('step'); |
|
8064 }, |
|
8065 |
|
8066 _complete: function () { |
|
8067 L.Util.cancelAnimFrame(this._animId); |
|
8068 |
|
8069 this._inProgress = false; |
|
8070 this.fire('end'); |
|
8071 }, |
|
8072 |
|
8073 _easeOut: function (t) { |
|
8074 return 1 - Math.pow(1 - t, this._easeOutPower); |
|
8075 } |
|
8076 }); |
|
8077 |
|
8078 |
|
8079 /* |
|
8080 * Extends L.Map to handle zoom animations. |
|
8081 */ |
|
8082 |
|
8083 L.Map.mergeOptions({ |
|
8084 zoomAnimation: L.DomUtil.TRANSITION && !L.Browser.android23 && !L.Browser.mobileOpera |
|
8085 }); |
|
8086 |
|
8087 if (L.DomUtil.TRANSITION) { |
|
8088 L.Map.addInitHook(function () { |
|
8089 L.DomEvent.on(this._mapPane, L.DomUtil.TRANSITION_END, this._catchTransitionEnd, this); |
|
8090 }); |
|
8091 } |
|
8092 |
|
8093 L.Map.include(!L.DomUtil.TRANSITION ? {} : { |
|
8094 |
|
8095 _zoomToIfClose: function (center, zoom) { |
|
8096 |
|
8097 if (this._animatingZoom) { return true; } |
|
8098 |
|
8099 if (!this.options.zoomAnimation) { return false; } |
|
8100 |
|
8101 var scale = this.getZoomScale(zoom), |
|
8102 offset = this._getCenterOffset(center)._divideBy(1 - 1 / scale); |
|
8103 |
|
8104 // if offset does not exceed half of the view |
|
8105 if (!this._offsetIsWithinView(offset, 1)) { return false; } |
|
8106 |
|
8107 L.DomUtil.addClass(this._mapPane, 'leaflet-zoom-anim'); |
|
8108 |
|
8109 this |
|
8110 .fire('movestart') |
|
8111 .fire('zoomstart'); |
|
8112 |
|
8113 this.fire('zoomanim', { |
|
8114 center: center, |
|
8115 zoom: zoom |
|
8116 }); |
|
8117 |
|
8118 var origin = this._getCenterLayerPoint().add(offset); |
|
8119 |
|
8120 this._prepareTileBg(); |
|
8121 this._runAnimation(center, zoom, scale, origin); |
|
8122 |
|
8123 return true; |
|
8124 }, |
|
8125 |
|
8126 _catchTransitionEnd: function () { |
|
8127 if (this._animatingZoom) { |
|
8128 this._onZoomTransitionEnd(); |
|
8129 } |
|
8130 }, |
|
8131 |
|
8132 _runAnimation: function (center, zoom, scale, origin, backwardsTransform) { |
|
8133 this._animateToCenter = center; |
|
8134 this._animateToZoom = zoom; |
|
8135 this._animatingZoom = true; |
|
8136 |
|
8137 if (L.Draggable) { |
|
8138 L.Draggable._disabled = true; |
|
8139 } |
|
8140 |
|
8141 var transform = L.DomUtil.TRANSFORM, |
|
8142 tileBg = this._tileBg; |
|
8143 |
|
8144 clearTimeout(this._clearTileBgTimer); |
|
8145 |
|
8146 L.Util.falseFn(tileBg.offsetWidth); //hack to make sure transform is updated before running animation |
|
8147 |
|
8148 var scaleStr = L.DomUtil.getScaleString(scale, origin), |
|
8149 oldTransform = tileBg.style[transform]; |
|
8150 |
|
8151 tileBg.style[transform] = backwardsTransform ? |
|
8152 oldTransform + ' ' + scaleStr : |
|
8153 scaleStr + ' ' + oldTransform; |
|
8154 }, |
|
8155 |
|
8156 _prepareTileBg: function () { |
|
8157 var tilePane = this._tilePane, |
|
8158 tileBg = this._tileBg; |
|
8159 |
|
8160 // If foreground layer doesn't have many tiles but bg layer does, keep the existing bg layer and just zoom it some more |
|
8161 if (tileBg && this._getLoadedTilesPercentage(tileBg) > 0.5 && |
|
8162 this._getLoadedTilesPercentage(tilePane) < 0.5) { |
|
8163 |
|
8164 tilePane.style.visibility = 'hidden'; |
|
8165 tilePane.empty = true; |
|
8166 this._stopLoadingImages(tilePane); |
|
8167 return; |
|
8168 } |
|
8169 |
|
8170 if (!tileBg) { |
|
8171 tileBg = this._tileBg = this._createPane('leaflet-tile-pane', this._mapPane); |
|
8172 tileBg.style.zIndex = 1; |
|
8173 } |
|
8174 |
|
8175 // prepare the background pane to become the main tile pane |
|
8176 tileBg.style[L.DomUtil.TRANSFORM] = ''; |
|
8177 tileBg.style.visibility = 'hidden'; |
|
8178 |
|
8179 // tells tile layers to reinitialize their containers |
|
8180 tileBg.empty = true; //new FG |
|
8181 tilePane.empty = false; //new BG |
|
8182 |
|
8183 //Switch out the current layer to be the new bg layer (And vice-versa) |
|
8184 this._tilePane = this._panes.tilePane = tileBg; |
|
8185 var newTileBg = this._tileBg = tilePane; |
|
8186 |
|
8187 L.DomUtil.addClass(newTileBg, 'leaflet-zoom-animated'); |
|
8188 |
|
8189 this._stopLoadingImages(newTileBg); |
|
8190 }, |
|
8191 |
|
8192 _getLoadedTilesPercentage: function (container) { |
|
8193 var tiles = container.getElementsByTagName('img'), |
|
8194 i, len, count = 0; |
|
8195 |
|
8196 for (i = 0, len = tiles.length; i < len; i++) { |
|
8197 if (tiles[i].complete) { |
|
8198 count++; |
|
8199 } |
|
8200 } |
|
8201 return count / len; |
|
8202 }, |
|
8203 |
|
8204 // stops loading all tiles in the background layer |
|
8205 _stopLoadingImages: function (container) { |
|
8206 var tiles = Array.prototype.slice.call(container.getElementsByTagName('img')), |
|
8207 i, len, tile; |
|
8208 |
|
8209 for (i = 0, len = tiles.length; i < len; i++) { |
|
8210 tile = tiles[i]; |
|
8211 |
|
8212 if (!tile.complete) { |
|
8213 tile.onload = L.Util.falseFn; |
|
8214 tile.onerror = L.Util.falseFn; |
|
8215 tile.src = L.Util.emptyImageUrl; |
|
8216 |
|
8217 tile.parentNode.removeChild(tile); |
|
8218 } |
|
8219 } |
|
8220 }, |
|
8221 |
|
8222 _onZoomTransitionEnd: function () { |
|
8223 this._restoreTileFront(); |
|
8224 |
|
8225 L.DomUtil.removeClass(this._mapPane, 'leaflet-zoom-anim'); |
|
8226 L.Util.falseFn(this._tileBg.offsetWidth); // force reflow |
|
8227 this._animatingZoom = false; |
|
8228 this._resetView(this._animateToCenter, this._animateToZoom, true, true); |
|
8229 |
|
8230 if (L.Draggable) { |
|
8231 L.Draggable._disabled = false; |
|
8232 } |
|
8233 }, |
|
8234 |
|
8235 _restoreTileFront: function () { |
|
8236 this._tilePane.innerHTML = ''; |
|
8237 this._tilePane.style.visibility = ''; |
|
8238 this._tilePane.style.zIndex = 2; |
|
8239 this._tileBg.style.zIndex = 1; |
|
8240 }, |
|
8241 |
|
8242 _clearTileBg: function () { |
|
8243 if (!this._animatingZoom && !this.touchZoom._zooming) { |
|
8244 this._tileBg.innerHTML = ''; |
|
8245 } |
|
8246 } |
|
8247 }); |
|
8248 |
|
8249 |
|
8250 /* |
|
8251 * Provides L.Map with convenient shortcuts for using browser geolocation features. |
|
8252 */ |
|
8253 |
|
8254 L.Map.include({ |
|
8255 _defaultLocateOptions: { |
|
8256 watch: false, |
|
8257 setView: false, |
|
8258 maxZoom: Infinity, |
|
8259 timeout: 10000, |
|
8260 maximumAge: 0, |
|
8261 enableHighAccuracy: false |
|
8262 }, |
|
8263 |
|
8264 locate: function (/*Object*/ options) { |
|
8265 |
|
8266 options = this._locationOptions = L.extend(this._defaultLocateOptions, options); |
|
8267 |
|
8268 if (!navigator.geolocation) { |
|
8269 this._handleGeolocationError({ |
|
8270 code: 0, |
|
8271 message: "Geolocation not supported." |
|
8272 }); |
|
8273 return this; |
|
8274 } |
|
8275 |
|
8276 var onResponse = L.bind(this._handleGeolocationResponse, this), |
|
8277 onError = L.bind(this._handleGeolocationError, this); |
|
8278 |
|
8279 if (options.watch) { |
|
8280 this._locationWatchId = |
|
8281 navigator.geolocation.watchPosition(onResponse, onError, options); |
|
8282 } else { |
|
8283 navigator.geolocation.getCurrentPosition(onResponse, onError, options); |
|
8284 } |
|
8285 return this; |
|
8286 }, |
|
8287 |
|
8288 stopLocate: function () { |
|
8289 if (navigator.geolocation) { |
|
8290 navigator.geolocation.clearWatch(this._locationWatchId); |
|
8291 } |
|
8292 return this; |
|
8293 }, |
|
8294 |
|
8295 _handleGeolocationError: function (error) { |
|
8296 var c = error.code, |
|
8297 message = error.message || |
|
8298 (c === 1 ? "permission denied" : |
|
8299 (c === 2 ? "position unavailable" : "timeout")); |
|
8300 |
|
8301 if (this._locationOptions.setView && !this._loaded) { |
|
8302 this.fitWorld(); |
|
8303 } |
|
8304 |
|
8305 this.fire('locationerror', { |
|
8306 code: c, |
|
8307 message: "Geolocation error: " + message + "." |
|
8308 }); |
|
8309 }, |
|
8310 |
|
8311 _handleGeolocationResponse: function (pos) { |
|
8312 var latAccuracy = 180 * pos.coords.accuracy / 4e7, |
|
8313 lngAccuracy = latAccuracy * 2, |
|
8314 |
|
8315 lat = pos.coords.latitude, |
|
8316 lng = pos.coords.longitude, |
|
8317 latlng = new L.LatLng(lat, lng), |
|
8318 |
|
8319 sw = new L.LatLng(lat - latAccuracy, lng - lngAccuracy), |
|
8320 ne = new L.LatLng(lat + latAccuracy, lng + lngAccuracy), |
|
8321 bounds = new L.LatLngBounds(sw, ne), |
|
8322 |
|
8323 options = this._locationOptions; |
|
8324 |
|
8325 if (options.setView) { |
|
8326 var zoom = Math.min(this.getBoundsZoom(bounds), options.maxZoom); |
|
8327 this.setView(latlng, zoom); |
|
8328 } |
|
8329 |
|
8330 this.fire('locationfound', { |
|
8331 latlng: latlng, |
|
8332 bounds: bounds, |
|
8333 accuracy: pos.coords.accuracy |
|
8334 }); |
|
8335 } |
|
8336 }); |
|
8337 |
|
8338 |
|
8339 }(this, document)); |