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1 YUI.add('content-editable', function (Y, NAME) { |
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2 |
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3 /*jshint maxlen: 500 */ |
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4 /** |
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5 * Creates a component to work with an elemment. |
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6 * @class ContentEditable |
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7 * @for ContentEditable |
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8 * @extends Y.Plugin.Base |
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9 * @constructor |
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10 * @module editor |
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11 * @submodule content-editable |
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12 */ |
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13 |
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14 var Lang = Y.Lang, |
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15 YNode = Y.Node, |
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16 |
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17 EVENT_CONTENT_READY = 'contentready', |
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18 EVENT_READY = 'ready', |
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19 |
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20 TAG_PARAGRAPH = 'p', |
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21 |
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22 BLUR = 'blur', |
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23 CONTAINER = 'container', |
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24 CONTENT_EDITABLE = 'contentEditable', |
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25 EMPTY = '', |
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26 FOCUS = 'focus', |
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27 HOST = 'host', |
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28 INNER_HTML = 'innerHTML', |
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29 KEY = 'key', |
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30 PARENT_NODE = 'parentNode', |
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31 PASTE = 'paste', |
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32 TEXT = 'Text', |
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33 USE = 'use', |
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34 |
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35 ContentEditable = function() { |
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36 ContentEditable.superclass.constructor.apply(this, arguments); |
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37 }; |
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38 |
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39 Y.extend(ContentEditable, Y.Plugin.Base, { |
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40 |
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41 /** |
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42 * Internal reference set when render is called. |
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43 * @private |
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44 * @property _rendered |
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45 * @type Boolean |
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46 */ |
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47 _rendered: null, |
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48 |
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49 /** |
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50 * Internal reference to the YUI instance bound to the element |
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51 * @private |
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52 * @property _instance |
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53 * @type YUI |
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54 */ |
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55 _instance: null, |
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56 |
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57 /** |
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58 * Initializes the ContentEditable instance |
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59 * @protected |
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60 * @method initializer |
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61 */ |
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62 initializer: function() { |
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63 var host = this.get(HOST); |
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64 |
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65 if (host) { |
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66 host.frame = this; |
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67 } |
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68 |
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69 this._eventHandles = []; |
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70 |
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71 this.publish(EVENT_READY, { |
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72 emitFacade: true, |
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73 defaultFn: this._defReadyFn |
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74 }); |
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75 }, |
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76 |
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77 /** |
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78 * Destroys the instance. |
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79 * @protected |
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80 * @method destructor |
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81 */ |
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82 destructor: function() { |
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83 new Y.EventHandle(this._eventHandles).detach(); |
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84 |
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85 this._container.removeAttribute(CONTENT_EDITABLE); |
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86 }, |
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87 |
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88 /** |
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89 * Generic handler for all DOM events fired by the Editor container. This handler |
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90 * takes the current EventFacade and augments it to fire on the ContentEditable host. It adds two new properties |
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91 * to the EventFacade called frameX and frameY which adds the scroll and xy position of the ContentEditable element |
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92 * to the original pageX and pageY of the event so external nodes can be positioned over the element. |
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93 * In case of ContentEditable element these will be equal to pageX and pageY of the container. |
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94 * @private |
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95 * @method _onDomEvent |
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96 * @param {EventFacade} e |
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97 */ |
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98 _onDomEvent: function(e) { |
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99 var xy; |
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100 |
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101 e.frameX = e.frameY = 0; |
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102 |
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103 if (e.pageX > 0 || e.pageY > 0) { |
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104 if (e.type.substring(0, 3) !== KEY) { |
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105 xy = this._container.getXY(); |
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106 |
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107 e.frameX = xy[0]; |
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108 e.frameY = xy[1]; |
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109 } |
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110 } |
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111 |
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112 e.frameTarget = e.target; |
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113 e.frameCurrentTarget = e.currentTarget; |
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114 e.frameEvent = e; |
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115 |
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116 this.fire('dom:' + e.type, e); |
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117 }, |
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118 |
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119 /** |
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120 * Simple pass thru handler for the paste event so we can do content cleanup |
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121 * @private |
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122 * @method _DOMPaste |
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123 * @param {EventFacade} e |
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124 */ |
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125 _DOMPaste: function(e) { |
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126 var inst = this.getInstance(), |
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127 data = EMPTY, win = inst.config.win; |
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128 |
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129 if (e._event.originalTarget) { |
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130 data = e._event.originalTarget; |
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131 } |
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132 |
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133 if (e._event.clipboardData) { |
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134 data = e._event.clipboardData.getData(TEXT); |
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135 } |
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136 |
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137 if (win.clipboardData) { |
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138 data = win.clipboardData.getData(TEXT); |
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139 |
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140 if (data === EMPTY) { // Could be empty, or failed |
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141 // Verify failure |
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142 if (!win.clipboardData.setData(TEXT, data)) { |
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143 data = null; |
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144 } |
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145 } |
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146 } |
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147 |
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148 e.frameTarget = e.target; |
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149 e.frameCurrentTarget = e.currentTarget; |
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150 e.frameEvent = e; |
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151 |
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152 if (data) { |
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153 e.clipboardData = { |
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154 data: data, |
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155 getData: function() { |
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156 return data; |
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157 } |
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158 }; |
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159 } else { |
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160 Y.log('Failed to collect clipboard data', 'warn', 'contenteditable'); |
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161 |
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162 e.clipboardData = null; |
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163 } |
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164 |
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165 this.fire('dom:paste', e); |
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166 }, |
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167 |
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168 /** |
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169 * Binds DOM events and fires the ready event |
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170 * @private |
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171 * @method _defReadyFn |
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172 */ |
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173 _defReadyFn: function() { |
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174 var inst = this.getInstance(), |
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175 container = this.get(CONTAINER); |
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176 |
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177 Y.each( |
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178 ContentEditable.DOM_EVENTS, |
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179 function(value, key) { |
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180 var fn = Y.bind(this._onDomEvent, this), |
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181 kfn = ((Y.UA.ie && ContentEditable.THROTTLE_TIME > 0) ? Y.throttle(fn, ContentEditable.THROTTLE_TIME) : fn); |
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182 |
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183 if (!inst.Node.DOM_EVENTS[key]) { |
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184 inst.Node.DOM_EVENTS[key] = 1; |
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185 } |
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186 |
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187 if (value === 1) { |
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188 if (key !== FOCUS && key !== BLUR && key !== PASTE) { |
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189 if (key.substring(0, 3) === KEY) { |
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190 //Throttle key events in IE |
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191 this._eventHandles.push(container.on(key, kfn, container)); |
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192 } else { |
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193 this._eventHandles.push(container.on(key, fn, container)); |
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194 } |
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195 } |
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196 } |
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197 }, |
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198 this |
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199 ); |
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200 |
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201 inst.Node.DOM_EVENTS.paste = 1; |
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202 |
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203 this._eventHandles.push( |
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204 container.on(PASTE, Y.bind(this._DOMPaste, this), container), |
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205 container.on(FOCUS, Y.bind(this._onDomEvent, this), container), |
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206 container.on(BLUR, Y.bind(this._onDomEvent, this), container) |
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207 ); |
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208 |
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209 inst.__use = inst.use; |
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210 |
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211 inst.use = Y.bind(this.use, this); |
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212 }, |
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213 |
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214 /** |
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215 * Called once the content is available in the ContentEditable element and calls the final use call |
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216 * @private |
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217 * @method _onContentReady |
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218 * on the internal instance so that the modules are loaded properly. |
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219 */ |
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220 _onContentReady: function(event) { |
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221 if (!this._ready) { |
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222 this._ready = true; |
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223 |
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224 var inst = this.getInstance(), |
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225 args = Y.clone(this.get(USE)); |
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226 |
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227 this.fire(EVENT_CONTENT_READY); |
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228 |
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229 Y.log('On content available', 'info', 'contenteditable'); |
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230 |
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231 if (event) { |
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232 inst.config.doc = YNode.getDOMNode(event.target); |
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233 } |
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234 |
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235 args.push(Y.bind(function() { |
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236 Y.log('Callback from final internal use call', 'info', 'contenteditable'); |
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237 |
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238 if (inst.EditorSelection) { |
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239 inst.EditorSelection.DEFAULT_BLOCK_TAG = this.get('defaultblock'); |
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240 |
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241 inst.EditorSelection.ROOT = this.get(CONTAINER); |
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242 } |
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243 |
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244 this.fire(EVENT_READY); |
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245 }, this)); |
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246 |
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247 Y.log('Calling use on internal instance: ' + args, 'info', 'contentEditable'); |
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248 |
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249 inst.use.apply(inst, args); |
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250 } |
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251 }, |
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252 |
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253 /** |
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254 * Retrieves defaultblock value from host attribute |
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255 * @private |
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256 * @method _getDefaultBlock |
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257 * @return {String} |
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258 */ |
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259 _getDefaultBlock: function() { |
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260 return this._getHostValue('defaultblock'); |
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261 }, |
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262 |
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263 /** |
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264 * Retrieves dir value from host attribute |
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265 * @private |
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266 * @method _getDir |
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267 * @return {String} |
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268 */ |
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269 _getDir: function() { |
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270 return this._getHostValue('dir'); |
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271 }, |
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272 |
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273 /** |
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274 * Retrieves extracss value from host attribute |
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275 * @private |
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276 * @method _getExtraCSS |
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277 * @return {String} |
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278 */ |
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279 _getExtraCSS: function() { |
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280 return this._getHostValue('extracss'); |
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281 }, |
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282 |
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283 /** |
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284 * Get the content from the container |
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285 * @private |
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286 * @method _getHTML |
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287 * @param {String} html The raw HTML from the container. |
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288 * @return {String} |
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289 */ |
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290 _getHTML: function() { |
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291 var html, container; |
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292 |
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293 if (this._ready) { |
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294 container = this.get(CONTAINER); |
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295 |
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296 html = container.get(INNER_HTML); |
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297 } |
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298 |
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299 return html; |
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300 }, |
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301 |
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302 /** |
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303 * Retrieves a value from host attribute |
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304 * @private |
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305 * @method _getHostValue |
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306 * @param {attr} The attribute which value should be returned from the host |
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307 * @return {String|Object} |
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308 */ |
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309 _getHostValue: function(attr) { |
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310 var host = this.get(HOST); |
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311 |
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312 if (host) { |
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313 return host.get(attr); |
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314 } |
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315 }, |
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316 |
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317 /** |
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318 * Set the content of the container |
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319 * @private |
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320 * @method _setHTML |
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321 * @param {String} html The raw HTML to set to the container. |
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322 * @return {String} |
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323 */ |
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324 _setHTML: function(html) { |
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325 if (this._ready) { |
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326 var container = this.get(CONTAINER); |
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327 |
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328 container.set(INNER_HTML, html); |
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329 } else { |
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330 //This needs to be wrapped in a contentready callback for the !_ready state |
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331 this.once(EVENT_CONTENT_READY, Y.bind(this._setHTML, this, html)); |
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332 } |
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333 |
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334 return html; |
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335 }, |
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336 |
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337 /** |
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338 * Sets the linked CSS on the instance. |
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339 * @private |
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340 * @method _setLinkedCSS |
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341 * @param {String} css The linkedcss value |
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342 * @return {String} |
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343 */ |
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344 _setLinkedCSS: function(css) { |
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345 if (this._ready) { |
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346 var inst = this.getInstance(); |
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347 inst.Get.css(css); |
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348 } else { |
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349 //This needs to be wrapped in a contentready callback for the !_ready state |
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350 this.once(EVENT_CONTENT_READY, Y.bind(this._setLinkedCSS, this, css)); |
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351 } |
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352 |
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353 return css; |
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354 }, |
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355 |
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356 /** |
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357 * Sets the dir (language direction) attribute on the container. |
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358 * @private |
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359 * @method _setDir |
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360 * @param {String} value The language direction |
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361 * @return {String} |
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362 */ |
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363 _setDir: function(value) { |
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364 var container; |
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365 |
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366 if (this._ready) { |
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367 container = this.get(CONTAINER); |
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368 |
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369 container.setAttribute('dir', value); |
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370 } else { |
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371 //This needs to be wrapped in a contentready callback for the !_ready state |
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372 this.once(EVENT_CONTENT_READY, Y.bind(this._setDir, this, value)); |
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373 } |
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374 |
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375 return value; |
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376 }, |
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377 |
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378 /** |
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379 * Set's the extra CSS on the instance. |
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380 * @private |
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381 * @method _setExtraCSS |
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382 * @param {String} css The CSS style to be set as extra css |
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383 * @return {String} |
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384 */ |
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385 _setExtraCSS: function(css) { |
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386 if (this._ready) { |
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387 if (css) { |
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388 var inst = this.getInstance(), |
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389 head = inst.one('head'); |
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390 |
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391 if (this._extraCSSNode) { |
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392 this._extraCSSNode.remove(); |
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393 } |
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394 |
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395 this._extraCSSNode = YNode.create('<style>' + css + '</style>'); |
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396 |
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397 head.append(this._extraCSSNode); |
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398 } |
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399 } else { |
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400 //This needs to be wrapped in a contentready callback for the !_ready state |
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401 this.once(EVENT_CONTENT_READY, Y.bind(this._setExtraCSS, this, css)); |
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402 } |
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403 |
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404 return css; |
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405 }, |
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406 |
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407 /** |
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408 * Sets the language value on the instance. |
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409 * @private |
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410 * @method _setLang |
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411 * @param {String} value The language to be set |
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412 * @return {String} |
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413 */ |
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414 _setLang: function(value) { |
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415 var container; |
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416 |
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417 if (this._ready) { |
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418 container = this.get(CONTAINER); |
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419 |
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420 container.setAttribute('lang', value); |
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421 } else { |
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422 //This needs to be wrapped in a contentready callback for the !_ready state |
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423 this.once(EVENT_CONTENT_READY, Y.bind(this._setLang, this, value)); |
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424 } |
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425 |
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426 return value; |
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427 }, |
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428 |
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429 /** |
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430 * Called from the first YUI instance that sets up the internal instance. |
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431 * This loads the content into the ContentEditable element and attaches the contentready event. |
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432 * @private |
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433 * @method _instanceLoaded |
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434 * @param {YUI} inst The internal YUI instance bound to the ContentEditable element |
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435 */ |
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436 _instanceLoaded: function(inst) { |
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437 this._instance = inst; |
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438 |
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439 this._onContentReady(); |
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440 |
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441 var doc = this._instance.config.doc; |
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442 |
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443 if (!Y.UA.ie) { |
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444 try { |
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445 //Force other browsers into non CSS styling |
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446 doc.execCommand('styleWithCSS', false, false); |
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447 doc.execCommand('insertbronreturn', false, false); |
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448 } catch (err) {} |
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449 } |
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450 }, |
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451 |
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452 |
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453 /** |
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454 * Validates linkedcss property |
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455 * |
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456 * @method _validateLinkedCSS |
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457 * @private |
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458 */ |
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459 _validateLinkedCSS: function(value) { |
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460 return Lang.isString(value) || Lang.isArray(value); |
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461 }, |
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462 |
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463 //BEGIN PUBLIC METHODS |
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464 /** |
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465 * This is a scoped version of the normal YUI.use method & is bound to the ContentEditable element |
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466 * At setup, the inst.use method is mapped to this method. |
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467 * @method use |
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468 */ |
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469 use: function() { |
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470 Y.log('Calling augmented use after ready', 'info', 'contenteditable'); |
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471 |
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472 var inst = this.getInstance(), |
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473 args = Y.Array(arguments), |
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474 callback = false; |
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475 |
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476 if (Lang.isFunction(args[args.length - 1])) { |
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477 callback = args.pop(); |
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478 } |
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479 |
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480 if (callback) { |
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481 args.push(function() { |
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482 Y.log('Internal callback from augmented use', 'info', 'contenteditable'); |
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483 |
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484 callback.apply(inst, arguments); |
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485 }); |
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486 } |
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487 |
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488 return inst.__use.apply(inst, args); |
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489 }, |
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490 |
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491 /** |
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492 * A delegate method passed to the instance's delegate method |
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493 * @method delegate |
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494 * @param {String} type The type of event to listen for |
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495 * @param {Function} fn The method to attach |
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496 * @param {String, Node} cont The container to act as a delegate, if no "sel" passed, the container is assumed. |
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497 * @param {String} sel The selector to match in the event (optional) |
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498 * @return {EventHandle} The Event handle returned from Y.delegate |
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499 */ |
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500 delegate: function(type, fn, cont, sel) { |
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501 var inst = this.getInstance(); |
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502 |
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503 if (!inst) { |
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504 Y.log('Delegate events can not be attached until after the ready event has fired.', 'error', 'contenteditable'); |
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505 |
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506 return false; |
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507 } |
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508 |
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509 if (!sel) { |
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510 sel = cont; |
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511 |
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512 cont = this.get(CONTAINER); |
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513 } |
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514 |
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515 return inst.delegate(type, fn, cont, sel); |
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516 }, |
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517 |
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518 /** |
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519 * Get a reference to the internal YUI instance. |
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520 * @method getInstance |
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521 * @return {YUI} The internal YUI instance |
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522 */ |
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523 getInstance: function() { |
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524 return this._instance; |
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525 }, |
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526 |
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527 /** |
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528 * @method render |
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529 * @param {String/HTMLElement/Node} node The node to render to |
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530 * @return {ContentEditable} |
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531 * @chainable |
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532 */ |
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533 render: function(node) { |
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534 var args, inst, fn; |
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535 |
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536 if (this._rendered) { |
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537 Y.log('Container already rendered.', 'warn', 'contentEditable'); |
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538 |
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539 return this; |
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540 } |
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541 |
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542 if (node) { |
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543 this.set(CONTAINER, node); |
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544 } |
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545 |
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546 container = this.get(CONTAINER); |
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547 |
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548 if (!container) { |
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549 container = YNode.create(ContentEditable.HTML); |
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550 |
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551 Y.one('body').prepend(container); |
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552 |
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553 this.set(CONTAINER, container); |
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554 } |
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555 |
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556 this._rendered = true; |
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557 |
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558 this._container.setAttribute(CONTENT_EDITABLE, true); |
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559 |
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560 args = Y.clone(this.get(USE)); |
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561 |
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562 fn = Y.bind(function() { |
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563 inst = YUI(); |
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564 |
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565 inst.host = this.get(HOST); //Cross reference to Editor |
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566 |
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567 inst.log = Y.log; //Dump the instance logs to the parent instance. |
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568 |
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569 Y.log('Creating new internal instance with node-base only', 'info', 'contenteditable'); |
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570 inst.use('node-base', Y.bind(this._instanceLoaded, this)); |
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571 }, this); |
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572 |
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573 args.push(fn); |
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574 |
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575 Y.log('Adding new modules to main instance: ' + args, 'info', 'contenteditable'); |
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576 Y.use.apply(Y, args); |
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577 |
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578 return this; |
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579 }, |
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580 |
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581 /** |
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582 * Set the focus to the container |
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583 * @method focus |
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584 * @param {Function} fn Callback function to execute after focus happens |
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585 * @return {ContentEditable} |
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586 * @chainable |
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587 */ |
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588 focus: function() { |
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589 this._container.focus(); |
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590 |
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591 return this; |
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592 }, |
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593 /** |
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594 * Show the iframe instance |
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595 * @method show |
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596 * @return {ContentEditable} |
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597 * @chainable |
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598 */ |
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599 show: function() { |
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600 this._container.show(); |
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601 |
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602 this.focus(); |
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603 |
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604 return this; |
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605 }, |
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606 |
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607 /** |
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608 * Hide the iframe instance |
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609 * @method hide |
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610 * @return {ContentEditable} |
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611 * @chainable |
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612 */ |
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613 hide: function() { |
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614 this._container.hide(); |
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615 |
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616 return this; |
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617 } |
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618 }, |
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619 { |
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620 /** |
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621 * The throttle time for key events in IE |
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622 * @static |
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623 * @property THROTTLE_TIME |
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624 * @type Number |
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625 * @default 100 |
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626 */ |
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627 THROTTLE_TIME: 100, |
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628 |
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629 /** |
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630 * The DomEvents that the frame automatically attaches and bubbles |
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631 * @static |
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632 * @property DOM_EVENTS |
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633 * @type Object |
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634 */ |
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635 DOM_EVENTS: { |
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636 click: 1, |
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637 dblclick: 1, |
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638 focusin: 1, |
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639 focusout: 1, |
|
640 keydown: 1, |
|
641 keypress: 1, |
|
642 keyup: 1, |
|
643 mousedown: 1, |
|
644 mouseup: 1, |
|
645 paste: 1 |
|
646 }, |
|
647 |
|
648 /** |
|
649 * The template string used to create the ContentEditable element |
|
650 * @static |
|
651 * @property HTML |
|
652 * @type String |
|
653 */ |
|
654 HTML: '<div></div>', |
|
655 |
|
656 /** |
|
657 * The name of the class (contentEditable) |
|
658 * @static |
|
659 * @property NAME |
|
660 * @type String |
|
661 */ |
|
662 NAME: 'contentEditable', |
|
663 |
|
664 /** |
|
665 * The namespace on which ContentEditable plugin will reside. |
|
666 * |
|
667 * @property NS |
|
668 * @type String |
|
669 * @default 'contentEditable' |
|
670 * @static |
|
671 */ |
|
672 NS: CONTENT_EDITABLE, |
|
673 |
|
674 ATTRS: { |
|
675 /** |
|
676 * The default text direction for this ContentEditable element. Default: ltr |
|
677 * @attribute dir |
|
678 * @type String |
|
679 */ |
|
680 dir: { |
|
681 lazyAdd: false, |
|
682 validator: Lang.isString, |
|
683 setter: '_setDir', |
|
684 valueFn: '_getDir' |
|
685 }, |
|
686 |
|
687 /** |
|
688 * The container to set contentEditable=true or to create on render. |
|
689 * @attribute container |
|
690 * @type String/HTMLElement/Node |
|
691 */ |
|
692 container: { |
|
693 setter: function(n) { |
|
694 this._container = Y.one(n); |
|
695 |
|
696 return this._container; |
|
697 } |
|
698 }, |
|
699 |
|
700 /** |
|
701 * The string to inject as Editor content. Default '<br>' |
|
702 * @attribute content |
|
703 * @type String |
|
704 */ |
|
705 content: { |
|
706 getter: '_getHTML', |
|
707 lazyAdd: false, |
|
708 setter: '_setHTML', |
|
709 validator: Lang.isString, |
|
710 value: '<br>' |
|
711 }, |
|
712 |
|
713 /** |
|
714 * The default tag to use for block level items, defaults to: p |
|
715 * @attribute defaultblock |
|
716 * @type String |
|
717 */ |
|
718 defaultblock: { |
|
719 validator: Lang.isString, |
|
720 value: TAG_PARAGRAPH, |
|
721 valueFn: '_getDefaultBlock' |
|
722 }, |
|
723 |
|
724 /** |
|
725 * A string of CSS to add to the Head of the Editor |
|
726 * @attribute extracss |
|
727 * @type String |
|
728 */ |
|
729 extracss: { |
|
730 lazyAdd: false, |
|
731 setter: '_setExtraCSS', |
|
732 validator: Lang.isString, |
|
733 valueFn: '_getExtraCSS' |
|
734 }, |
|
735 |
|
736 /** |
|
737 * Set the id of the new Node. (optional) |
|
738 * @attribute id |
|
739 * @type String |
|
740 * @writeonce |
|
741 */ |
|
742 id: { |
|
743 writeOnce: true, |
|
744 getter: function(id) { |
|
745 if (!id) { |
|
746 id = 'inlineedit-' + Y.guid(); |
|
747 } |
|
748 |
|
749 return id; |
|
750 } |
|
751 }, |
|
752 |
|
753 /** |
|
754 * The default language. Default: en-US |
|
755 * @attribute lang |
|
756 * @type String |
|
757 */ |
|
758 lang: { |
|
759 validator: Lang.isString, |
|
760 setter: '_setLang', |
|
761 lazyAdd: false, |
|
762 value: 'en-US' |
|
763 }, |
|
764 |
|
765 /** |
|
766 * An array of url's to external linked style sheets |
|
767 * @attribute linkedcss |
|
768 * @type String|Array |
|
769 */ |
|
770 linkedcss: { |
|
771 setter: '_setLinkedCSS', |
|
772 validator: '_validateLinkedCSS' |
|
773 //value: '' |
|
774 }, |
|
775 |
|
776 /** |
|
777 * The Node instance of the container. |
|
778 * @attribute node |
|
779 * @type Node |
|
780 */ |
|
781 node: { |
|
782 readOnly: true, |
|
783 value: null, |
|
784 getter: function() { |
|
785 return this._container; |
|
786 } |
|
787 }, |
|
788 |
|
789 /** |
|
790 * Array of modules to include in the scoped YUI instance at render time. Default: ['node-base', 'editor-selection', 'stylesheet'] |
|
791 * @attribute use |
|
792 * @writeonce |
|
793 * @type Array |
|
794 */ |
|
795 use: { |
|
796 validator: Lang.isArray, |
|
797 writeOnce: true, |
|
798 value: ['node-base', 'editor-selection', 'stylesheet'] |
|
799 } |
|
800 } |
|
801 }); |
|
802 |
|
803 Y.namespace('Plugin'); |
|
804 |
|
805 Y.Plugin.ContentEditable = ContentEditable; |
|
806 |
|
807 }, '@VERSION@', {"requires": ["node-base", "editor-selection", "stylesheet", "plugin"]}); |