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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.TreeSelector");
dojo.require("dojo.widget.HtmlWidget");
dojo.widget.defineWidget("dojo.widget.TreeSelector", dojo.widget.HtmlWidget, function () {
this.eventNames = {};
this.listenedTrees = [];
}, {widgetType:"TreeSelector", selectedNode:null, dieWithTree:false, eventNamesDefault:{select:"select", destroy:"destroy", deselect:"deselect", dblselect:"dblselect"}, initialize:function () {
for (name in this.eventNamesDefault) {
if (dojo.lang.isUndefined(this.eventNames[name])) {
this.eventNames[name] = this.widgetId + "/" + this.eventNamesDefault[name];
}
}
}, destroy:function () {
dojo.event.topic.publish(this.eventNames.destroy, {source:this});
return dojo.widget.HtmlWidget.prototype.destroy.apply(this, arguments);
}, listenTree:function (tree) {
dojo.event.topic.subscribe(tree.eventNames.titleClick, this, "select");
dojo.event.topic.subscribe(tree.eventNames.iconClick, this, "select");
dojo.event.topic.subscribe(tree.eventNames.collapse, this, "onCollapse");
dojo.event.topic.subscribe(tree.eventNames.moveFrom, this, "onMoveFrom");
dojo.event.topic.subscribe(tree.eventNames.removeNode, this, "onRemoveNode");
dojo.event.topic.subscribe(tree.eventNames.treeDestroy, this, "onTreeDestroy");
this.listenedTrees.push(tree);
}, unlistenTree:function (tree) {
dojo.event.topic.unsubscribe(tree.eventNames.titleClick, this, "select");
dojo.event.topic.unsubscribe(tree.eventNames.iconClick, this, "select");
dojo.event.topic.unsubscribe(tree.eventNames.collapse, this, "onCollapse");
dojo.event.topic.unsubscribe(tree.eventNames.moveFrom, this, "onMoveFrom");
dojo.event.topic.unsubscribe(tree.eventNames.removeNode, this, "onRemoveNode");
dojo.event.topic.unsubscribe(tree.eventNames.treeDestroy, this, "onTreeDestroy");
for (var i = 0; i < this.listenedTrees.length; i++) {
if (this.listenedTrees[i] === tree) {
this.listenedTrees.splice(i, 1);
break;
}
}
}, onTreeDestroy:function (message) {
this.unlistenTree(message.source);
if (this.dieWithTree) {
this.destroy();
}
}, onCollapse:function (message) {
if (!this.selectedNode) {
return;
}
var node = message.source;
var parent = this.selectedNode.parent;
while (parent !== node && parent.isTreeNode) {
parent = parent.parent;
}
if (parent.isTreeNode) {
this.deselect();
}
}, select:function (message) {
var node = message.source;
var e = message.event;
if (this.selectedNode === node) {
if (e.ctrlKey || e.shiftKey || e.metaKey) {
this.deselect();
return;
}
dojo.event.topic.publish(this.eventNames.dblselect, {node:node});
return;
}
if (this.selectedNode) {
this.deselect();
}
this.doSelect(node);
dojo.event.topic.publish(this.eventNames.select, {node:node});
}, onMoveFrom:function (message) {
if (message.child !== this.selectedNode) {
return;
}
if (!dojo.lang.inArray(this.listenedTrees, message.newTree)) {
this.deselect();
}
}, onRemoveNode:function (message) {
if (message.child !== this.selectedNode) {
return;
}
this.deselect();
}, doSelect:function (node) {
node.markSelected();
this.selectedNode = node;
}, deselect:function () {
var node = this.selectedNode;
this.selectedNode = null;
node.unMarkSelected();
dojo.event.topic.publish(this.eventNames.deselect, {node:node});
}});