3 * Copyright(c) 2006-2009 Ext JS, LLC
5 * http://www.extjs.com/license
8 * @class Ext.tree.DefaultSelectionModel
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9 * @extends Ext.util.Observable
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10 * The default single selection for a TreePanel.
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12 Ext.tree.DefaultSelectionModel = function(config){
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13 this.selNode = null;
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17 * @event selectionchange
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18 * Fires when the selected node changes
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19 * @param {DefaultSelectionModel} this
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20 * @param {TreeNode} node the new selection
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25 * @event beforeselect
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26 * Fires before the selected node changes, return false to cancel the change
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27 * @param {DefaultSelectionModel} this
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28 * @param {TreeNode} node the new selection
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29 * @param {TreeNode} node the old selection
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34 Ext.apply(this, config);
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35 Ext.tree.DefaultSelectionModel.superclass.constructor.call(this);
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38 Ext.extend(Ext.tree.DefaultSelectionModel, Ext.util.Observable, {
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39 init : function(tree){
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41 tree.mon(tree.getTreeEl(), 'keydown', this.onKeyDown, this);
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42 tree.on('click', this.onNodeClick, this);
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45 onNodeClick : function(node, e){
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51 * @param {TreeNode} node The node to select
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52 * @return {TreeNode} The selected node
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54 select : function(node, /* private*/ selectNextNode){
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55 // If node is hidden, select the next node in whatever direction was being moved in.
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56 if (!Ext.fly(node.ui.wrap).isVisible() && selectNextNode) {
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57 return selectNextNode.call(this, node);
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59 var last = this.selNode;
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61 node.ui.onSelectedChange(true);
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62 }else if(this.fireEvent('beforeselect', this, node, last) !== false){
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63 if(last && last.ui){
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64 last.ui.onSelectedChange(false);
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66 this.selNode = node;
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67 node.ui.onSelectedChange(true);
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68 this.fireEvent('selectionchange', this, node, last);
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75 * @param {TreeNode} node The node to unselect
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76 * @param {Boolean} silent True to stop the selectionchange event from firing.
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78 unselect : function(node, silent){
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79 if(this.selNode == node){
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80 this.clearSelections(silent);
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85 * Clear all selections
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86 * @param {Boolean} silent True to stop the selectionchange event from firing.
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88 clearSelections : function(silent){
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89 var n = this.selNode;
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91 n.ui.onSelectedChange(false);
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92 this.selNode = null;
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93 if(silent !== true){
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94 this.fireEvent('selectionchange', this, null);
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101 * Get the selected node
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102 * @return {TreeNode} The selected node
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104 getSelectedNode : function(){
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105 return this.selNode;
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109 * Returns true if the node is selected
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110 * @param {TreeNode} node The node to check
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111 * @return {Boolean}
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113 isSelected : function(node){
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114 return this.selNode == node;
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118 * Selects the node above the selected node in the tree, intelligently walking the nodes
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119 * @return TreeNode The new selection
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121 selectPrevious : function(/* private */ s){
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122 if(!(s = s || this.selNode || this.lastSelNode)){
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125 // Here we pass in the current function to select to indicate the direction we're moving
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126 var ps = s.previousSibling;
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128 if(!ps.isExpanded() || ps.childNodes.length < 1){
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129 return this.select(ps, this.selectPrevious);
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131 var lc = ps.lastChild;
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132 while(lc && lc.isExpanded() && Ext.fly(lc.ui.wrap).isVisible() && lc.childNodes.length > 0){
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135 return this.select(lc, this.selectPrevious);
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137 } else if(s.parentNode && (this.tree.rootVisible || !s.parentNode.isRoot)){
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138 return this.select(s.parentNode, this.selectPrevious);
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144 * Selects the node above the selected node in the tree, intelligently walking the nodes
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145 * @return TreeNode The new selection
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147 selectNext : function(/* private */ s){
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148 if(!(s = s || this.selNode || this.lastSelNode)){
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151 // Here we pass in the current function to select to indicate the direction we're moving
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152 if(s.firstChild && s.isExpanded() && Ext.fly(s.ui.wrap).isVisible()){
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153 return this.select(s.firstChild, this.selectNext);
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154 }else if(s.nextSibling){
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155 return this.select(s.nextSibling, this.selectNext);
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156 }else if(s.parentNode){
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158 s.parentNode.bubble(function(){
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159 if(this.nextSibling){
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160 newS = this.getOwnerTree().selModel.select(this.nextSibling, this.selectNext);
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169 onKeyDown : function(e){
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170 var s = this.selNode || this.lastSelNode;
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171 // undesirable, but required
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176 var k = e.getKey();
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184 this.selectPrevious();
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187 e.preventDefault();
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188 if(s.hasChildNodes()){
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189 if(!s.isExpanded()){
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191 }else if(s.firstChild){
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192 this.select(s.firstChild, e);
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197 e.preventDefault();
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198 if(s.hasChildNodes() && s.isExpanded()){
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200 }else if(s.parentNode && (this.tree.rootVisible || s.parentNode != this.tree.getRootNode())){
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201 this.select(s.parentNode, e);
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209 * @class Ext.tree.MultiSelectionModel
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210 * @extends Ext.util.Observable
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211 * Multi selection for a TreePanel.
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213 Ext.tree.MultiSelectionModel = function(config){
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214 this.selNodes = [];
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218 * @event selectionchange
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219 * Fires when the selected nodes change
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220 * @param {MultiSelectionModel} this
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221 * @param {Array} nodes Array of the selected nodes
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225 Ext.apply(this, config);
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226 Ext.tree.MultiSelectionModel.superclass.constructor.call(this);
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229 Ext.extend(Ext.tree.MultiSelectionModel, Ext.util.Observable, {
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230 init : function(tree){
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232 tree.mon(tree.getTreeEl(), 'keydown', this.onKeyDown, this);
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233 tree.on('click', this.onNodeClick, this);
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236 onNodeClick : function(node, e){
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237 if(e.ctrlKey && this.isSelected(node)){
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238 this.unselect(node);
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240 this.select(node, e, e.ctrlKey);
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246 * @param {TreeNode} node The node to select
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247 * @param {EventObject} e (optional) An event associated with the selection
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248 * @param {Boolean} keepExisting True to retain existing selections
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249 * @return {TreeNode} The selected node
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251 select : function(node, e, keepExisting){
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252 if(keepExisting !== true){
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253 this.clearSelections(true);
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255 if(this.isSelected(node)){
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256 this.lastSelNode = node;
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259 this.selNodes.push(node);
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260 this.selMap[node.id] = node;
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261 this.lastSelNode = node;
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262 node.ui.onSelectedChange(true);
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263 this.fireEvent('selectionchange', this, this.selNodes);
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269 * @param {TreeNode} node The node to unselect
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271 unselect : function(node){
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272 if(this.selMap[node.id]){
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273 node.ui.onSelectedChange(false);
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274 var sn = this.selNodes;
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275 var index = sn.indexOf(node);
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277 this.selNodes.splice(index, 1);
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279 delete this.selMap[node.id];
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280 this.fireEvent('selectionchange', this, this.selNodes);
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285 * Clear all selections
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287 clearSelections : function(suppressEvent){
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288 var sn = this.selNodes;
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290 for(var i = 0, len = sn.length; i < len; i++){
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291 sn[i].ui.onSelectedChange(false);
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293 this.selNodes = [];
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295 if(suppressEvent !== true){
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296 this.fireEvent('selectionchange', this, this.selNodes);
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302 * Returns true if the node is selected
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303 * @param {TreeNode} node The node to check
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304 * @return {Boolean}
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306 isSelected : function(node){
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307 return this.selMap[node.id] ? true : false;
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311 * Returns an array of the selected nodes
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314 getSelectedNodes : function(){
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315 return this.selNodes;
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318 onKeyDown : Ext.tree.DefaultSelectionModel.prototype.onKeyDown,
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320 selectNext : Ext.tree.DefaultSelectionModel.prototype.selectNext,
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322 selectPrevious : Ext.tree.DefaultSelectionModel.prototype.selectPrevious
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