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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 |
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161 e.clipboardData = null; |
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162 } |
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163 |
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164 this.fire('dom:paste', e); |
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165 }, |
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166 |
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167 /** |
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168 * Binds DOM events and fires the ready event |
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169 * @private |
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170 * @method _defReadyFn |
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171 */ |
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172 _defReadyFn: function() { |
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173 var inst = this.getInstance(), |
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174 container = this.get(CONTAINER); |
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175 |
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176 Y.each( |
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177 ContentEditable.DOM_EVENTS, |
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178 function(value, key) { |
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179 var fn = Y.bind(this._onDomEvent, this), |
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180 kfn = ((Y.UA.ie && ContentEditable.THROTTLE_TIME > 0) ? Y.throttle(fn, ContentEditable.THROTTLE_TIME) : fn); |
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181 |
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182 if (!inst.Node.DOM_EVENTS[key]) { |
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183 inst.Node.DOM_EVENTS[key] = 1; |
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184 } |
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185 |
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186 if (value === 1) { |
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187 if (key !== FOCUS && key !== BLUR && key !== PASTE) { |
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188 if (key.substring(0, 3) === KEY) { |
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189 //Throttle key events in IE |
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190 this._eventHandles.push(container.on(key, kfn, container)); |
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191 } else { |
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192 this._eventHandles.push(container.on(key, fn, container)); |
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193 } |
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194 } |
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195 } |
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196 }, |
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197 this |
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198 ); |
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199 |
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200 inst.Node.DOM_EVENTS.paste = 1; |
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201 |
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202 this._eventHandles.push( |
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203 container.on(PASTE, Y.bind(this._DOMPaste, this), container), |
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204 container.on(FOCUS, Y.bind(this._onDomEvent, this), container), |
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205 container.on(BLUR, Y.bind(this._onDomEvent, this), container) |
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206 ); |
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207 |
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208 inst.__use = inst.use; |
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209 |
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210 inst.use = Y.bind(this.use, this); |
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211 }, |
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212 |
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213 /** |
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214 * Called once the content is available in the ContentEditable element and calls the final use call |
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215 * @private |
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216 * @method _onContentReady |
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217 * on the internal instance so that the modules are loaded properly. |
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218 */ |
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219 _onContentReady: function(event) { |
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220 if (!this._ready) { |
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221 this._ready = true; |
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222 |
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223 var inst = this.getInstance(), |
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224 args = Y.clone(this.get(USE)); |
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225 |
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226 this.fire(EVENT_CONTENT_READY); |
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227 |
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228 |
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229 if (event) { |
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230 inst.config.doc = YNode.getDOMNode(event.target); |
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231 } |
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232 |
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233 args.push(Y.bind(function() { |
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234 |
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235 if (inst.EditorSelection) { |
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236 inst.EditorSelection.DEFAULT_BLOCK_TAG = this.get('defaultblock'); |
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237 |
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238 inst.EditorSelection.ROOT = this.get(CONTAINER); |
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239 } |
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240 |
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241 this.fire(EVENT_READY); |
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242 }, this)); |
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243 |
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244 |
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245 inst.use.apply(inst, args); |
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246 } |
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247 }, |
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248 |
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249 /** |
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250 * Retrieves defaultblock value from host attribute |
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251 * @private |
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252 * @method _getDefaultBlock |
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253 * @return {String} |
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254 */ |
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255 _getDefaultBlock: function() { |
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256 return this._getHostValue('defaultblock'); |
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257 }, |
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258 |
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259 /** |
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260 * Retrieves dir value from host attribute |
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261 * @private |
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262 * @method _getDir |
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263 * @return {String} |
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264 */ |
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265 _getDir: function() { |
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266 return this._getHostValue('dir'); |
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267 }, |
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268 |
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269 /** |
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270 * Retrieves extracss value from host attribute |
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271 * @private |
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272 * @method _getExtraCSS |
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273 * @return {String} |
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274 */ |
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275 _getExtraCSS: function() { |
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276 return this._getHostValue('extracss'); |
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277 }, |
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278 |
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279 /** |
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280 * Get the content from the container |
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281 * @private |
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282 * @method _getHTML |
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283 * @param {String} html The raw HTML from the container. |
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284 * @return {String} |
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285 */ |
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286 _getHTML: function() { |
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287 var html, container; |
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288 |
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289 if (this._ready) { |
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290 container = this.get(CONTAINER); |
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291 |
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292 html = container.get(INNER_HTML); |
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293 } |
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294 |
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295 return html; |
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296 }, |
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297 |
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298 /** |
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299 * Retrieves a value from host attribute |
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300 * @private |
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301 * @method _getHostValue |
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302 * @param {attr} The attribute which value should be returned from the host |
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303 * @return {String|Object} |
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304 */ |
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305 _getHostValue: function(attr) { |
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306 var host = this.get(HOST); |
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307 |
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308 if (host) { |
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309 return host.get(attr); |
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310 } |
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311 }, |
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312 |
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313 /** |
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314 * Set the content of the container |
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315 * @private |
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316 * @method _setHTML |
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317 * @param {String} html The raw HTML to set to the container. |
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318 * @return {String} |
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319 */ |
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320 _setHTML: function(html) { |
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321 if (this._ready) { |
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322 var container = this.get(CONTAINER); |
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323 |
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324 container.set(INNER_HTML, html); |
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325 } else { |
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326 //This needs to be wrapped in a contentready callback for the !_ready state |
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327 this.once(EVENT_CONTENT_READY, Y.bind(this._setHTML, this, html)); |
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328 } |
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329 |
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330 return html; |
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331 }, |
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332 |
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333 /** |
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334 * Sets the linked CSS on the instance. |
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335 * @private |
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336 * @method _setLinkedCSS |
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337 * @param {String} css The linkedcss value |
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338 * @return {String} |
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339 */ |
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340 _setLinkedCSS: function(css) { |
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341 if (this._ready) { |
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342 var inst = this.getInstance(); |
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343 inst.Get.css(css); |
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344 } else { |
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345 //This needs to be wrapped in a contentready callback for the !_ready state |
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346 this.once(EVENT_CONTENT_READY, Y.bind(this._setLinkedCSS, this, css)); |
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347 } |
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348 |
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349 return css; |
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350 }, |
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351 |
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352 /** |
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353 * Sets the dir (language direction) attribute on the container. |
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354 * @private |
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355 * @method _setDir |
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356 * @param {String} value The language direction |
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357 * @return {String} |
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358 */ |
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359 _setDir: function(value) { |
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360 var container; |
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361 |
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362 if (this._ready) { |
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363 container = this.get(CONTAINER); |
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364 |
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365 container.setAttribute('dir', value); |
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366 } else { |
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367 //This needs to be wrapped in a contentready callback for the !_ready state |
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368 this.once(EVENT_CONTENT_READY, Y.bind(this._setDir, this, value)); |
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369 } |
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370 |
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371 return value; |
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372 }, |
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373 |
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374 /** |
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375 * Set's the extra CSS on the instance. |
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376 * @private |
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377 * @method _setExtraCSS |
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378 * @param {String} css The CSS style to be set as extra css |
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379 * @return {String} |
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380 */ |
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381 _setExtraCSS: function(css) { |
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382 if (this._ready) { |
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383 if (css) { |
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384 var inst = this.getInstance(), |
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385 head = inst.one('head'); |
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386 |
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387 if (this._extraCSSNode) { |
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388 this._extraCSSNode.remove(); |
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389 } |
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390 |
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391 this._extraCSSNode = YNode.create('<style>' + css + '</style>'); |
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392 |
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393 head.append(this._extraCSSNode); |
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394 } |
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395 } else { |
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396 //This needs to be wrapped in a contentready callback for the !_ready state |
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397 this.once(EVENT_CONTENT_READY, Y.bind(this._setExtraCSS, this, css)); |
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398 } |
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399 |
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400 return css; |
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401 }, |
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402 |
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403 /** |
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404 * Sets the language value on the instance. |
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405 * @private |
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406 * @method _setLang |
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407 * @param {String} value The language to be set |
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408 * @return {String} |
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409 */ |
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410 _setLang: function(value) { |
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411 var container; |
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412 |
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413 if (this._ready) { |
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414 container = this.get(CONTAINER); |
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415 |
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416 container.setAttribute('lang', value); |
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417 } else { |
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418 //This needs to be wrapped in a contentready callback for the !_ready state |
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419 this.once(EVENT_CONTENT_READY, Y.bind(this._setLang, this, value)); |
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420 } |
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421 |
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422 return value; |
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423 }, |
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424 |
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425 /** |
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426 * Called from the first YUI instance that sets up the internal instance. |
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427 * This loads the content into the ContentEditable element and attaches the contentready event. |
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428 * @private |
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429 * @method _instanceLoaded |
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430 * @param {YUI} inst The internal YUI instance bound to the ContentEditable element |
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431 */ |
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432 _instanceLoaded: function(inst) { |
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433 this._instance = inst; |
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434 |
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435 this._onContentReady(); |
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436 |
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437 var doc = this._instance.config.doc; |
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438 |
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439 if (!Y.UA.ie) { |
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440 try { |
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441 //Force other browsers into non CSS styling |
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442 doc.execCommand('styleWithCSS', false, false); |
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443 doc.execCommand('insertbronreturn', false, false); |
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444 } catch (err) {} |
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445 } |
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446 }, |
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447 |
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448 |
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449 /** |
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450 * Validates linkedcss property |
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451 * |
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452 * @method _validateLinkedCSS |
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453 * @private |
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454 */ |
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455 _validateLinkedCSS: function(value) { |
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456 return Lang.isString(value) || Lang.isArray(value); |
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457 }, |
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458 |
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459 //BEGIN PUBLIC METHODS |
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460 /** |
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461 * This is a scoped version of the normal YUI.use method & is bound to the ContentEditable element |
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462 * At setup, the inst.use method is mapped to this method. |
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463 * @method use |
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464 */ |
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465 use: function() { |
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466 |
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467 var inst = this.getInstance(), |
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468 args = Y.Array(arguments), |
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469 callback = false; |
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470 |
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471 if (Lang.isFunction(args[args.length - 1])) { |
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472 callback = args.pop(); |
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473 } |
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474 |
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475 if (callback) { |
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476 args.push(function() { |
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477 |
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478 callback.apply(inst, arguments); |
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479 }); |
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480 } |
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481 |
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482 return inst.__use.apply(inst, args); |
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483 }, |
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484 |
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485 /** |
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486 * A delegate method passed to the instance's delegate method |
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487 * @method delegate |
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488 * @param {String} type The type of event to listen for |
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489 * @param {Function} fn The method to attach |
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490 * @param {String, Node} cont The container to act as a delegate, if no "sel" passed, the container is assumed. |
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491 * @param {String} sel The selector to match in the event (optional) |
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492 * @return {EventHandle} The Event handle returned from Y.delegate |
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493 */ |
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494 delegate: function(type, fn, cont, sel) { |
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495 var inst = this.getInstance(); |
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496 |
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497 if (!inst) { |
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498 |
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499 return false; |
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500 } |
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501 |
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502 if (!sel) { |
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503 sel = cont; |
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504 |
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505 cont = this.get(CONTAINER); |
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506 } |
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507 |
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508 return inst.delegate(type, fn, cont, sel); |
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509 }, |
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510 |
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511 /** |
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512 * Get a reference to the internal YUI instance. |
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513 * @method getInstance |
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514 * @return {YUI} The internal YUI instance |
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515 */ |
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516 getInstance: function() { |
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517 return this._instance; |
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518 }, |
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519 |
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520 /** |
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521 * @method render |
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522 * @param {String/HTMLElement/Node} node The node to render to |
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523 * @return {ContentEditable} |
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524 * @chainable |
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525 */ |
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526 render: function(node) { |
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527 var args, inst, fn; |
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528 |
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529 if (this._rendered) { |
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530 |
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531 return this; |
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532 } |
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533 |
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534 if (node) { |
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535 this.set(CONTAINER, node); |
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536 } |
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537 |
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538 container = this.get(CONTAINER); |
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539 |
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540 if (!container) { |
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541 container = YNode.create(ContentEditable.HTML); |
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542 |
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543 Y.one('body').prepend(container); |
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544 |
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545 this.set(CONTAINER, container); |
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546 } |
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547 |
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548 this._rendered = true; |
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549 |
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550 this._container.setAttribute(CONTENT_EDITABLE, true); |
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551 |
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552 args = Y.clone(this.get(USE)); |
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553 |
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554 fn = Y.bind(function() { |
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555 inst = YUI(); |
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556 |
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557 inst.host = this.get(HOST); //Cross reference to Editor |
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558 |
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559 |
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560 inst.use('node-base', Y.bind(this._instanceLoaded, this)); |
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561 }, this); |
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562 |
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563 args.push(fn); |
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564 |
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565 Y.use.apply(Y, args); |
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566 |
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567 return this; |
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568 }, |
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569 |
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570 /** |
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571 * Set the focus to the container |
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572 * @method focus |
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573 * @param {Function} fn Callback function to execute after focus happens |
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574 * @return {ContentEditable} |
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575 * @chainable |
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576 */ |
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577 focus: function() { |
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578 this._container.focus(); |
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579 |
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580 return this; |
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581 }, |
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582 /** |
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583 * Show the iframe instance |
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584 * @method show |
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585 * @return {ContentEditable} |
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586 * @chainable |
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587 */ |
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588 show: function() { |
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589 this._container.show(); |
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590 |
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591 this.focus(); |
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592 |
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593 return this; |
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594 }, |
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595 |
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596 /** |
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597 * Hide the iframe instance |
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598 * @method hide |
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599 * @return {ContentEditable} |
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600 * @chainable |
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601 */ |
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602 hide: function() { |
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603 this._container.hide(); |
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604 |
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605 return this; |
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606 } |
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607 }, |
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608 { |
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609 /** |
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610 * The throttle time for key events in IE |
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611 * @static |
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612 * @property THROTTLE_TIME |
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613 * @type Number |
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614 * @default 100 |
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615 */ |
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616 THROTTLE_TIME: 100, |
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617 |
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618 /** |
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619 * The DomEvents that the frame automatically attaches and bubbles |
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620 * @static |
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621 * @property DOM_EVENTS |
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622 * @type Object |
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623 */ |
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624 DOM_EVENTS: { |
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625 click: 1, |
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626 dblclick: 1, |
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627 focusin: 1, |
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628 focusout: 1, |
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629 keydown: 1, |
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630 keypress: 1, |
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631 keyup: 1, |
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632 mousedown: 1, |
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633 mouseup: 1, |
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634 paste: 1 |
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635 }, |
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636 |
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637 /** |
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638 * The template string used to create the ContentEditable element |
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639 * @static |
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640 * @property HTML |
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641 * @type String |
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642 */ |
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643 HTML: '<div></div>', |
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644 |
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645 /** |
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646 * The name of the class (contentEditable) |
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647 * @static |
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648 * @property NAME |
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649 * @type String |
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650 */ |
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651 NAME: 'contentEditable', |
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652 |
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653 /** |
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654 * The namespace on which ContentEditable plugin will reside. |
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655 * |
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656 * @property NS |
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657 * @type String |
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658 * @default 'contentEditable' |
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659 * @static |
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660 */ |
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661 NS: CONTENT_EDITABLE, |
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662 |
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663 ATTRS: { |
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664 /** |
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665 * The default text direction for this ContentEditable element. Default: ltr |
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666 * @attribute dir |
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667 * @type String |
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668 */ |
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669 dir: { |
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670 lazyAdd: false, |
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671 validator: Lang.isString, |
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672 setter: '_setDir', |
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673 valueFn: '_getDir' |
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674 }, |
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675 |
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676 /** |
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677 * The container to set contentEditable=true or to create on render. |
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678 * @attribute container |
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679 * @type String/HTMLElement/Node |
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680 */ |
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681 container: { |
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682 setter: function(n) { |
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683 this._container = Y.one(n); |
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684 |
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685 return this._container; |
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686 } |
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687 }, |
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688 |
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689 /** |
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690 * The string to inject as Editor content. Default '<br>' |
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691 * @attribute content |
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692 * @type String |
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693 */ |
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694 content: { |
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695 getter: '_getHTML', |
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696 lazyAdd: false, |
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697 setter: '_setHTML', |
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698 validator: Lang.isString, |
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699 value: '<br>' |
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700 }, |
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701 |
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702 /** |
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703 * The default tag to use for block level items, defaults to: p |
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704 * @attribute defaultblock |
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705 * @type String |
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706 */ |
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707 defaultblock: { |
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708 validator: Lang.isString, |
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709 value: TAG_PARAGRAPH, |
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710 valueFn: '_getDefaultBlock' |
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711 }, |
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712 |
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713 /** |
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714 * A string of CSS to add to the Head of the Editor |
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715 * @attribute extracss |
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716 * @type String |
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717 */ |
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718 extracss: { |
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719 lazyAdd: false, |
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720 setter: '_setExtraCSS', |
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721 validator: Lang.isString, |
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722 valueFn: '_getExtraCSS' |
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723 }, |
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724 |
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725 /** |
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726 * Set the id of the new Node. (optional) |
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727 * @attribute id |
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728 * @type String |
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729 * @writeonce |
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730 */ |
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731 id: { |
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732 writeOnce: true, |
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733 getter: function(id) { |
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734 if (!id) { |
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735 id = 'inlineedit-' + Y.guid(); |
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736 } |
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737 |
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738 return id; |
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739 } |
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740 }, |
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741 |
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742 /** |
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743 * The default language. Default: en-US |
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744 * @attribute lang |
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745 * @type String |
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746 */ |
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747 lang: { |
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748 validator: Lang.isString, |
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749 setter: '_setLang', |
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750 lazyAdd: false, |
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751 value: 'en-US' |
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752 }, |
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753 |
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754 /** |
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755 * An array of url's to external linked style sheets |
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756 * @attribute linkedcss |
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757 * @type String|Array |
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758 */ |
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759 linkedcss: { |
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760 setter: '_setLinkedCSS', |
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761 validator: '_validateLinkedCSS' |
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762 //value: '' |
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763 }, |
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764 |
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765 /** |
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766 * The Node instance of the container. |
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767 * @attribute node |
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768 * @type Node |
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769 */ |
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770 node: { |
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771 readOnly: true, |
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772 value: null, |
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773 getter: function() { |
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774 return this._container; |
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775 } |
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776 }, |
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777 |
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778 /** |
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779 * Array of modules to include in the scoped YUI instance at render time. Default: ['node-base', 'editor-selection', 'stylesheet'] |
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780 * @attribute use |
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781 * @writeonce |
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782 * @type Array |
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783 */ |
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784 use: { |
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785 validator: Lang.isArray, |
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786 writeOnce: true, |
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787 value: ['node-base', 'editor-selection', 'stylesheet'] |
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788 } |
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789 } |
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790 }); |
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791 |
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792 Y.namespace('Plugin'); |
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793 |
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794 Y.Plugin.ContentEditable = ContentEditable; |
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795 |
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796 }, '@VERSION@', {"requires": ["node-base", "editor-selection", "stylesheet", "plugin"]}); |