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9 <pre class="prettyprint lang-js"><div id="cls-Ext.tree.TreePanel"></div>/**
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10 * @class Ext.tree.TreePanel
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11 * @extends Ext.Panel
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12 * <p>The TreePanel provides tree-structured UI representation of tree-structured data.</p>
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13 * <p>{@link Ext.tree.TreeNode TreeNode}s added to the TreePanel may each contain metadata
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14 * used by your application in their {@link Ext.tree.TreeNode#attributes attributes} property.</p>
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15 * <p><b>A TreePanel must have a {@link #root} node before it is rendered.</b> This may either be
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16 * specified using the {@link #root} config option, or using the {@link #setRootNode} method.
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17 * <p>An example of tree rendered to an existing div:</p><pre><code>
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18 var tree = new Ext.tree.TreePanel({
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19 renderTo: 'tree-div',
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24 containerScroll: true,
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26 // auto create TreeLoader
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27 dataUrl: 'get-nodes.php',
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37 tree.getRootNode().expand();
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39 * <p>The example above would work with a data packet similar to this:</p><pre><code>
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42 "id": "source\/adapter",
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50 "id": "source\/debug.js",
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55 * <p>An example of tree within a Viewport:</p><pre><code>
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61 title: 'Navigation',
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66 loader: new Ext.tree.TreeLoader(),
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67 root: new Ext.tree.AsyncTreeNode({
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70 text: 'Menu Option 1',
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73 text: 'Menu Option 2',
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76 text: 'Menu Option 3',
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82 click: function(n) {
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83 Ext.Msg.alert('Navigation Tree Click', 'You clicked: "' + n.attributes.text + '"');
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89 // remaining code not shown ...
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94 * @cfg {Ext.tree.TreeNode} root The root node for the tree.
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95 * @cfg {Boolean} rootVisible <tt>false</tt> to hide the root node (defaults to <tt>true</tt>)
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96 * @cfg {Boolean} lines <tt>false</tt> to disable tree lines (defaults to <tt>true</tt>)
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97 * @cfg {Boolean} enableDD <tt>true</tt> to enable drag and drop
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98 * @cfg {Boolean} enableDrag <tt>true</tt> to enable just drag
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99 * @cfg {Boolean} enableDrop <tt>true</tt> to enable just drop
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100 * @cfg {Object} dragConfig Custom config to pass to the {@link Ext.tree.TreeDragZone} instance
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101 * @cfg {Object} dropConfig Custom config to pass to the {@link Ext.tree.TreeDropZone} instance
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102 * @cfg {String} ddGroup The DD group this TreePanel belongs to
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103 * @cfg {Boolean} ddAppendOnly <tt>true</tt> if the tree should only allow append drops (use for trees which are sorted)
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104 * @cfg {Boolean} ddScroll <tt>true</tt> to enable body scrolling
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105 * @cfg {Boolean} containerScroll <tt>true</tt> to register this container with ScrollManager
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106 * @cfg {Boolean} hlDrop <tt>false</tt> to disable node highlight on drop (defaults to the value of {@link Ext#enableFx})
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107 * @cfg {String} hlColor The color of the node highlight (defaults to <tt>'C3DAF9'</tt>)
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108 * @cfg {Boolean} animate <tt>true</tt> to enable animated expand/collapse (defaults to the value of {@link Ext#enableFx})
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109 * @cfg {Boolean} singleExpand <tt>true</tt> if only 1 node per branch may be expanded
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110 * @cfg {Object} selModel A tree selection model to use with this TreePanel (defaults to an {@link Ext.tree.DefaultSelectionModel})
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111 * @cfg {Boolean} trackMouseOver <tt>false</tt> to disable mouse over highlighting
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112 * @cfg {Ext.tree.TreeLoader} loader A {@link Ext.tree.TreeLoader} for use with this TreePanel
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113 * @cfg {String} pathSeparator The token used to separate sub-paths in path strings (defaults to <tt>'/'</tt>)
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114 * @cfg {Boolean} useArrows <tt>true</tt> to use Vista-style arrows in the tree (defaults to <tt>false</tt>)
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115 * @cfg {String} requestMethod The HTTP request method for loading data (defaults to the value of {@link Ext.Ajax#method}).
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118 * @param {Object} config
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121 Ext.tree.TreePanel = Ext.extend(Ext.Panel, {
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122 rootVisible : true,
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123 animate : Ext.enableFx,
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126 hlDrop : Ext.enableFx,
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127 pathSeparator : '/',
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130 * @cfg {Array} bubbleEvents
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131 * <p>An array of events that, when fired, should be bubbled to any parent container.
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132 * See {@link Ext.util.Observable#enableBubble}.
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133 * Defaults to <tt>[]</tt>.
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137 initComponent : function(){
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138 Ext.tree.TreePanel.superclass.initComponent.call(this);
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140 if(!this.eventModel){
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141 this.eventModel = new Ext.tree.TreeEventModel(this);
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144 // initialize the loader
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145 var l = this.loader;
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147 l = new Ext.tree.TreeLoader({
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148 dataUrl: this.dataUrl,
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149 requestMethod: this.requestMethod
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151 }else if(Ext.isObject(l) && !l.load){
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152 l = new Ext.tree.TreeLoader(l);
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156 this.nodeHash = {};
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159 * The root node of this tree.
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160 * @type Ext.tree.TreeNode
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166 this.setRootNode(r);
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174 * Fires when a new child node is appended to a node in this tree.
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175 * @param {Tree} tree The owner tree
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176 * @param {Node} parent The parent node
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177 * @param {Node} node The newly appended node
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178 * @param {Number} index The index of the newly appended node
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183 * Fires when a child node is removed from a node in this tree.
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184 * @param {Tree} tree The owner tree
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185 * @param {Node} parent The parent node
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186 * @param {Node} node The child node removed
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191 * Fires when a node is moved to a new location in the tree
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192 * @param {Tree} tree The owner tree
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193 * @param {Node} node The node moved
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194 * @param {Node} oldParent The old parent of this node
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195 * @param {Node} newParent The new parent of this node
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196 * @param {Number} index The index it was moved to
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201 * Fires when a new child node is inserted in a node in this tree.
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202 * @param {Tree} tree The owner tree
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203 * @param {Node} parent The parent node
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204 * @param {Node} node The child node inserted
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205 * @param {Node} refNode The child node the node was inserted before
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209 * @event beforeappend
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210 * Fires before a new child is appended to a node in this tree, return false to cancel the append.
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211 * @param {Tree} tree The owner tree
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212 * @param {Node} parent The parent node
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213 * @param {Node} node The child node to be appended
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217 * @event beforeremove
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218 * Fires before a child is removed from a node in this tree, return false to cancel the remove.
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219 * @param {Tree} tree The owner tree
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220 * @param {Node} parent The parent node
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221 * @param {Node} node The child node to be removed
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225 * @event beforemovenode
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226 * Fires before a node is moved to a new location in the tree. Return false to cancel the move.
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227 * @param {Tree} tree The owner tree
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228 * @param {Node} node The node being moved
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229 * @param {Node} oldParent The parent of the node
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230 * @param {Node} newParent The new parent the node is moving to
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231 * @param {Number} index The index it is being moved to
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235 * @event beforeinsert
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236 * Fires before a new child is inserted in a node in this tree, return false to cancel the insert.
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237 * @param {Tree} tree The owner tree
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238 * @param {Node} parent The parent node
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239 * @param {Node} node The child node to be inserted
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240 * @param {Node} refNode The child node the node is being inserted before
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245 * @event beforeload
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246 * Fires before a node is loaded, return false to cancel
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247 * @param {Node} node The node being loaded
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252 * Fires when a node is loaded
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253 * @param {Node} node The node that was loaded
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257 * @event textchange
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258 * Fires when the text for a node is changed
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259 * @param {Node} node The node
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260 * @param {String} text The new text
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261 * @param {String} oldText The old text
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265 * @event beforeexpandnode
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266 * Fires before a node is expanded, return false to cancel.
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267 * @param {Node} node The node
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268 * @param {Boolean} deep
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269 * @param {Boolean} anim
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271 'beforeexpandnode',
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273 * @event beforecollapsenode
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274 * Fires before a node is collapsed, return false to cancel.
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275 * @param {Node} node The node
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276 * @param {Boolean} deep
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277 * @param {Boolean} anim
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279 'beforecollapsenode',
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281 * @event expandnode
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282 * Fires when a node is expanded
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283 * @param {Node} node The node
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287 * @event disabledchange
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288 * Fires when the disabled status of a node changes
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289 * @param {Node} node The node
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290 * @param {Boolean} disabled
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294 * @event collapsenode
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295 * Fires when a node is collapsed
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296 * @param {Node} node The node
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300 * @event beforeclick
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301 * Fires before click processing on a node. Return false to cancel the default action.
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302 * @param {Node} node The node
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303 * @param {Ext.EventObject} e The event object
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308 * Fires when a node is clicked
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309 * @param {Node} node The node
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310 * @param {Ext.EventObject} e The event object
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314 * @event containerclick
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315 * Fires when the tree container is clicked
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316 * @param {Tree} this
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317 * @param {Ext.EventObject} e The event object
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321 * @event checkchange
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322 * Fires when a node with a checkbox's checked property changes
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323 * @param {Node} this This node
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324 * @param {Boolean} checked
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328 * @event beforedblclick
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329 * Fires before double click processing on a node. Return false to cancel the default action.
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330 * @param {Node} node The node
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331 * @param {Ext.EventObject} e The event object
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336 * Fires when a node is double clicked
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337 * @param {Node} node The node
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338 * @param {Ext.EventObject} e The event object
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342 * @event containerdblclick
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343 * Fires when the tree container is double clicked
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344 * @param {Tree} this
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345 * @param {Ext.EventObject} e The event object
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347 'containerdblclick',
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349 * @event contextmenu
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350 * Fires when a node is right clicked. To display a context menu in response to this
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351 * event, first create a Menu object (see {@link Ext.menu.Menu} for details), then add
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352 * a handler for this event:<pre><code>
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353 new Ext.tree.TreePanel({
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354 title: 'My TreePanel',
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355 root: new Ext.tree.AsyncTreeNode({
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358 { text: 'Child node 1', leaf: true },
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359 { text: 'Child node 2', leaf: true }
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362 contextMenu: new Ext.menu.Menu({
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365 text: 'Delete Node'
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368 itemclick: function(item) {
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370 case 'delete-node':
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371 var n = item.parentMenu.contextNode;
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372 if (n.parentNode) {
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381 contextmenu: function(node, e) {
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382 // Register the context node with the menu so that a Menu Item's handler function can access
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383 // it via its {@link Ext.menu.BaseItem#parentMenu parentMenu} property.
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385 var c = node.getOwnerTree().contextMenu;
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386 c.contextNode = node;
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387 c.showAt(e.getXY());
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392 * @param {Node} node The node
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393 * @param {Ext.EventObject} e The event object
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397 * @event containercontextmenu
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398 * Fires when the tree container is right clicked
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399 * @param {Tree} this
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400 * @param {Ext.EventObject} e The event object
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402 'containercontextmenu',
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404 * @event beforechildrenrendered
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405 * Fires right before the child nodes for a node are rendered
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406 * @param {Node} node The node
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408 'beforechildrenrendered',
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411 * Fires when a node starts being dragged
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412 * @param {Ext.tree.TreePanel} this
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413 * @param {Ext.tree.TreeNode} node
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414 * @param {event} e The raw browser event
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419 * Fires when a drag operation is complete
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420 * @param {Ext.tree.TreePanel} this
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421 * @param {Ext.tree.TreeNode} node
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422 * @param {event} e The raw browser event
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427 * Fires when a dragged node is dropped on a valid DD target
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428 * @param {Ext.tree.TreePanel} this
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429 * @param {Ext.tree.TreeNode} node
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430 * @param {DD} dd The dd it was dropped on
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431 * @param {event} e The raw browser event
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435 * @event beforenodedrop
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436 * Fires when a DD object is dropped on a node in this tree for preprocessing. Return false to cancel the drop. The dropEvent
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437 * passed to handlers has the following properties:<br />
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438 * <ul style="padding:5px;padding-left:16px;">
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439 * <li>tree - The TreePanel</li>
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440 * <li>target - The node being targeted for the drop</li>
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441 * <li>data - The drag data from the drag source</li>
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442 * <li>point - The point of the drop - append, above or below</li>
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443 * <li>source - The drag source</li>
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444 * <li>rawEvent - Raw mouse event</li>
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445 * <li>dropNode - Drop node(s) provided by the source <b>OR</b> you can supply node(s)
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446 * to be inserted by setting them on this object.</li>
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447 * <li>cancel - Set this to true to cancel the drop.</li>
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448 * <li>dropStatus - If the default drop action is cancelled but the drop is valid, setting this to true
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449 * will prevent the animated 'repair' from appearing.</li>
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451 * @param {Object} dropEvent
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456 * Fires after a DD object is dropped on a node in this tree. The dropEvent
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457 * passed to handlers has the following properties:<br />
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458 * <ul style="padding:5px;padding-left:16px;">
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459 * <li>tree - The TreePanel</li>
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460 * <li>target - The node being targeted for the drop</li>
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461 * <li>data - The drag data from the drag source</li>
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462 * <li>point - The point of the drop - append, above or below</li>
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463 * <li>source - The drag source</li>
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464 * <li>rawEvent - Raw mouse event</li>
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465 * <li>dropNode - Dropped node(s).</li>
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467 * @param {Object} dropEvent
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471 * @event nodedragover
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472 * Fires when a tree node is being targeted for a drag drop, return false to signal drop not allowed. The dragOverEvent
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473 * passed to handlers has the following properties:<br />
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474 * <ul style="padding:5px;padding-left:16px;">
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475 * <li>tree - The TreePanel</li>
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476 * <li>target - The node being targeted for the drop</li>
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477 * <li>data - The drag data from the drag source</li>
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478 * <li>point - The point of the drop - append, above or below</li>
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479 * <li>source - The drag source</li>
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480 * <li>rawEvent - Raw mouse event</li>
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481 * <li>dropNode - Drop node(s) provided by the source.</li>
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482 * <li>cancel - Set this to true to signal drop not allowed.</li>
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484 * @param {Object} dragOverEvent
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488 if(this.singleExpand){
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489 this.on('beforeexpandnode', this.restrictExpand, this);
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494 proxyNodeEvent : function(ename, a1, a2, a3, a4, a5, a6){
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495 if(ename == 'collapse' || ename == 'expand' || ename == 'beforecollapse' || ename == 'beforeexpand' || ename == 'move' || ename == 'beforemove'){
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496 ename = ename+'node';
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498 // args inline for performance while bubbling events
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499 return this.fireEvent(ename, a1, a2, a3, a4, a5, a6);
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504 * Returns this root node for this tree
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507 getRootNode : function(){
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512 * Sets the root node for this tree. If the TreePanel has already rendered a root node, the
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513 * previous root node (and all of its descendants) are destroyed before the new root node is rendered.
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514 * @param {Node} node
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517 setRootNode : function(node){
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518 Ext.destroy(this.root);
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519 if(!node.render){ // attributes passed
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520 node = this.loader.createNode(node);
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523 node.ownerTree = this;
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524 node.isRoot = true;
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525 this.registerNode(node);
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526 if(!this.rootVisible){
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527 var uiP = node.attributes.uiProvider;
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528 node.ui = uiP ? new uiP(node) : new Ext.tree.RootTreeNodeUI(node);
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531 this.clearInnerCt();
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537 clearInnerCt : function(){
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538 this.innerCt.update('');
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542 renderRoot : function(){
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543 this.root.render();
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544 if(!this.rootVisible){
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545 this.root.renderChildren();
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550 * Gets a node in this tree by its id
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551 * @param {String} id
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554 getNodeById : function(id){
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555 return this.nodeHash[id];
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559 registerNode : function(node){
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560 this.nodeHash[node.id] = node;
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564 unregisterNode : function(node){
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565 delete this.nodeHash[node.id];
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569 toString : function(){
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570 return '[Tree'+(this.id?' '+this.id:'')+']';
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574 restrictExpand : function(node){
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575 var p = node.parentNode;
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577 if(p.expandedChild && p.expandedChild.parentNode == p){
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578 p.expandedChild.collapse();
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580 p.expandedChild = node;
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585 * Retrieve an array of checked nodes, or an array of a specific attribute of checked nodes (e.g. 'id')
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586 * @param {String} attribute (optional) Defaults to null (return the actual nodes)
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587 * @param {TreeNode} startNode (optional) The node to start from, defaults to the root
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590 getChecked : function(a, startNode){
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591 startNode = startNode || this.root;
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593 var f = function(){
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594 if(this.attributes.checked){
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595 r.push(!a ? this : (a == 'id' ? this.id : this.attributes[a]));
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598 startNode.cascade(f);
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603 * Returns the default {@link Ext.tree.TreeLoader} for this TreePanel.
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604 * @return {Ext.tree.TreeLoader} The TreeLoader for this TreePanel.
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606 getLoader : function(){
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607 return this.loader;
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613 expandAll : function(){
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614 this.root.expand(true);
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618 * Collapse all nodes
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620 collapseAll : function(){
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621 this.root.collapse(true);
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625 * Returns the selection model used by this TreePanel.
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626 * @return {TreeSelectionModel} The selection model used by this TreePanel
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628 getSelectionModel : function(){
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629 if(!this.selModel){
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630 this.selModel = new Ext.tree.DefaultSelectionModel();
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632 return this.selModel;
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636 * Expands a specified path in this TreePanel. A path can be retrieved from a node with {@link Ext.data.Node#getPath}
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637 * @param {String} path
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638 * @param {String} attr (optional) The attribute used in the path (see {@link Ext.data.Node#getPath} for more info)
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639 * @param {Function} callback (optional) The callback to call when the expand is complete. The callback will be called with
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640 * (bSuccess, oLastNode) where bSuccess is if the expand was successful and oLastNode is the last node that was expanded.
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642 expandPath : function(path, attr, callback){
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643 attr = attr || 'id';
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644 var keys = path.split(this.pathSeparator);
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645 var curNode = this.root;
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646 if(curNode.attributes[attr] != keys[1]){ // invalid root
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648 callback(false, null);
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653 var f = function(){
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654 if(++index == keys.length){
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656 callback(true, curNode);
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660 var c = curNode.findChild(attr, keys[index]);
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663 callback(false, curNode);
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668 c.expand(false, false, f);
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670 curNode.expand(false, false, f);
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674 * Selects the node in this tree at the specified path. A path can be retrieved from a node with {@link Ext.data.Node#getPath}
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675 * @param {String} path
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676 * @param {String} attr (optional) The attribute used in the path (see {@link Ext.data.Node#getPath} for more info)
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677 * @param {Function} callback (optional) The callback to call when the selection is complete. The callback will be called with
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678 * (bSuccess, oSelNode) where bSuccess is if the selection was successful and oSelNode is the selected node.
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680 selectPath : function(path, attr, callback){
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681 attr = attr || 'id';
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682 var keys = path.split(this.pathSeparator),
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684 if(keys.length > 1){
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685 var f = function(success, node){
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686 if(success && node){
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687 var n = node.findChild(attr, v);
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693 }else if(callback){
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694 callback(false, n);
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698 callback(false, n);
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702 this.expandPath(keys.join(this.pathSeparator), attr, f);
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704 this.root.select();
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706 callback(true, this.root);
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712 * Returns the underlying Element for this tree
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713 * @return {Ext.Element} The Element
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715 getTreeEl : function(){
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720 onRender : function(ct, position){
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721 Ext.tree.TreePanel.superclass.onRender.call(this, ct, position);
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722 this.el.addClass('x-tree');
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723 this.innerCt = this.body.createChild({tag:'ul',
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724 cls:'x-tree-root-ct ' +
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725 (this.useArrows ? 'x-tree-arrows' : this.lines ? 'x-tree-lines' : 'x-tree-no-lines')});
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729 initEvents : function(){
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730 Ext.tree.TreePanel.superclass.initEvents.call(this);
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732 if(this.containerScroll){
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733 Ext.dd.ScrollManager.register(this.body);
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735 if((this.enableDD || this.enableDrop) && !this.dropZone){
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737 * The dropZone used by this tree if drop is enabled (see {@link #enableDD} or {@link #enableDrop})
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738 * @property dropZone
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739 * @type Ext.tree.TreeDropZone
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741 this.dropZone = new Ext.tree.TreeDropZone(this, this.dropConfig || {
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742 ddGroup: this.ddGroup || 'TreeDD', appendOnly: this.ddAppendOnly === true
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745 if((this.enableDD || this.enableDrag) && !this.dragZone){
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747 * The dragZone used by this tree if drag is enabled (see {@link #enableDD} or {@link #enableDrag})
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748 * @property dragZone
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749 * @type Ext.tree.TreeDragZone
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751 this.dragZone = new Ext.tree.TreeDragZone(this, this.dragConfig || {
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752 ddGroup: this.ddGroup || 'TreeDD',
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753 scroll: this.ddScroll
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756 this.getSelectionModel().init(this);
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760 afterRender : function(){
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761 Ext.tree.TreePanel.superclass.afterRender.call(this);
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765 beforeDestroy : function(){
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767 Ext.dd.ScrollManager.unregister(this.body);
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768 Ext.destroy(this.dropZone, this.dragZone);
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770 Ext.destroy(this.root, this.loader);
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771 this.nodeHash = this.root = this.loader = null;
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772 Ext.tree.TreePanel.superclass.beforeDestroy.call(this);
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776 * @cfg {String/Number} activeItem
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780 * @cfg {Boolean} autoDestroy
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784 * @cfg {Object/String/Function} autoLoad
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788 * @cfg {Boolean} autoWidth
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792 * @cfg {Boolean/Number} bufferResize
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796 * @cfg {String} defaultType
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800 * @cfg {Object} defaults
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804 * @cfg {Boolean} hideBorders
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808 * @cfg {Mixed} items
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812 * @cfg {String} layout
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816 * @cfg {Object} layoutConfig
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820 * @cfg {Boolean} monitorResize
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848 * @method findByType
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852 * @method getComponent
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856 * @method getLayout
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860 * @method getUpdater
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880 * @method removeAll
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884 * @event afterLayout
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892 * @event beforeremove
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903 * @cfg {String} allowDomMove @hide
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906 * @cfg {String} autoEl @hide
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909 * @cfg {String} applyTo @hide
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912 * @cfg {String} contentEl @hide
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915 * @cfg {Mixed} data @hide
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918 * @cfg {Mixed} tpl @hide
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921 * @cfg {String} tplWriteMode @hide
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924 * @cfg {String} disabledClass @hide
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927 * @cfg {String} elements @hide
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930 * @cfg {String} html @hide
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933 * @cfg {Boolean} preventBodyReset
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937 * @property disabled
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941 * @method applyToMarkup
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953 * @method setDisabled
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958 Ext.tree.TreePanel.nodeTypes = {};
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960 Ext.reg('treepanel', Ext.tree.TreePanel);</pre>
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