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Struts example source code file (TreeSelectorV3.js)
The Struts TreeSelectorV3.js source code/* Copyright (c) 2004-2006, The Dojo Foundation All Rights Reserved. Licensed under the Academic Free License version 2.1 or above OR the modified BSD license. For more information on Dojo licensing, see: http://dojotoolkit.org/community/licensing.shtml */ dojo.provide("dojo.widget.TreeSelectorV3"); dojo.require("dojo.widget.HtmlWidget"); dojo.require("dojo.widget.TreeCommon"); dojo.widget.defineWidget("dojo.widget.TreeSelectorV3", [dojo.widget.HtmlWidget, dojo.widget.TreeCommon], function () { this.eventNames = {}; this.listenedTrees = {}; this.selectedNodes = []; this.lastClicked = {}; }, {listenTreeEvents:["afterTreeCreate", "afterCollapse", "afterChangeTree", "afterDetach", "beforeTreeDestroy"], listenNodeFilter:function (elem) { return elem instanceof dojo.widget.Widget; }, allowedMulti:true, dblselectTimeout:300, eventNamesDefault:{select:"select", deselect:"deselect", dblselect:"dblselect"}, onAfterTreeCreate:function (message) { var tree = message.source; dojo.event.browser.addListener(tree.domNode, "onclick", dojo.lang.hitch(this, this.onTreeClick)); if (dojo.render.html.ie) { dojo.event.browser.addListener(tree.domNode, "ondblclick", dojo.lang.hitch(this, this.onTreeDblClick)); } dojo.event.browser.addListener(tree.domNode, "onKey", dojo.lang.hitch(this, this.onKey)); }, onKey:function (e) { if (!e.key || e.ctrkKey || e.altKey) { return; } switch (e.key) { case e.KEY_ENTER: var node = this.domElement2TreeNode(e.target); if (node) { this.processNode(node, e); } } }, onAfterChangeTree:function (message) { if (!message.oldTree && message.node.selected) { this.select(message.node); } if (!message.newTree || !this.listenedTrees[message.newTree.widgetId]) { if (this.selectedNode && message.node.children) { this.deselectIfAncestorMatch(message.node); } } }, initialize:function (args) { for (var name in this.eventNamesDefault) { if (dojo.lang.isUndefined(this.eventNames[name])) { this.eventNames[name] = this.widgetId + "/" + this.eventNamesDefault[name]; } } }, onBeforeTreeDestroy:function (message) { this.unlistenTree(message.source); }, onAfterCollapse:function (message) { this.deselectIfAncestorMatch(message.source); }, onTreeDblClick:function (event) { this.onTreeClick(event); }, checkSpecialEvent:function (event) { return event.shiftKey || event.ctrlKey; }, onTreeClick:function (event) { var node = this.domElement2TreeNode(event.target); if (!node) { return; } var checkLabelClick = function (domElement) { return domElement === node.labelNode; }; if (this.checkPathCondition(event.target, checkLabelClick)) { this.processNode(node, event); } }, processNode:function (node, event) { if (node.actionIsDisabled(node.actions.SELECT)) { return; } if (dojo.lang.inArray(this.selectedNodes, node)) { if (this.checkSpecialEvent(event)) { this.deselect(node); return; } var _this = this; var i = 0; var selectedNode; while (this.selectedNodes.length > i) { selectedNode = this.selectedNodes[i]; if (selectedNode !== node) { this.deselect(selectedNode); continue; } i++; } var wasJustClicked = this.checkRecentClick(node); eventName = wasJustClicked ? this.eventNames.dblselect : this.eventNames.select; if (wasJustClicked) { eventName = this.eventNames.dblselect; this.forgetLastClicked(); } else { eventName = this.eventNames.select; this.setLastClicked(node); } dojo.event.topic.publish(eventName, {node:node}); return; } this.deselectIfNoMulti(event); this.setLastClicked(node); this.select(node); }, forgetLastClicked:function () { this.lastClicked = {}; }, setLastClicked:function (node) { this.lastClicked.date = new Date(); this.lastClicked.node = node; }, checkRecentClick:function (node) { var diff = new Date() - this.lastClicked.date; if (this.lastClicked.node && diff < this.dblselectTimeout) { return true; } else { return false; } }, deselectIfNoMulti:function (event) { if (!this.checkSpecialEvent(event) || !this.allowedMulti) { this.deselectAll(); } }, deselectIfAncestorMatch:function (ancestor) { var _this = this; dojo.lang.forEach(this.selectedNodes, function (node) { var selectedNode = node; node = node.parent; while (node && node.isTreeNode) { if (node === ancestor) { _this.deselect(selectedNode); return; } node = node.parent; } }); }, onAfterDetach:function (message) { this.deselectIfAncestorMatch(message.child); }, select:function (node) { var index = dojo.lang.find(this.selectedNodes, node, true); if (index >= 0) { return; } this.selectedNodes.push(node); dojo.event.topic.publish(this.eventNames.select, {node:node}); }, deselect:function (node) { var index = dojo.lang.find(this.selectedNodes, node, true); if (index < 0) { return; } this.selectedNodes.splice(index, 1); dojo.event.topic.publish(this.eventNames.deselect, {node:node}); }, deselectAll:function () { while (this.selectedNodes.length) { this.deselect(this.selectedNodes[0]); } }}); Other Struts examples (source code examples)Here is a short list of links related to this Struts TreeSelectorV3.js source code file: |
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