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/*
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]);
}
}});