flymis/WebRoot/dojojs/src/widget/ResizeHandle.js

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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.ResizeHandle");

dojo.require("dojo.widget.*");
dojo.require("dojo.html.layout");
dojo.require("dojo.event.*");

dojo.widget.defineWidget(
	"dojo.widget.ResizeHandle",
	dojo.widget.HtmlWidget,
{
	isSizing: false,
	startPoint: null,
	startSize: null,
	minSize: null,

	targetElmId: '',

	templateCssPath: dojo.uri.dojoUri("src/widget/templates/ResizeHandle.css"),
	templateString: '<div class="dojoHtmlResizeHandle"><div></div></div>',

	postCreate: function(){
		dojo.event.connect(this.domNode, "onmousedown", this, "beginSizing");
	},

	beginSizing: function(e){
		if (this.isSizing){ return false; }

		// get the target dom node to adjust.  targetElmId can refer to either a widget or a simple node
		this.targetWidget = dojo.widget.byId(this.targetElmId);
		this.targetDomNode = this.targetWidget ? this.targetWidget.domNode : dojo.byId(this.targetElmId);
		if (!this.targetDomNode){ return; }

		this.isSizing = true;
		this.startPoint  = {'x':e.clientX, 'y':e.clientY};
		var mb = dojo.html.getMarginBox(this.targetDomNode);
		this.startSize  = {'w':mb.width, 'h':mb.height};

		dojo.event.kwConnect({
			srcObj: dojo.body(), 
			srcFunc: "onmousemove",
			targetObj: this,
			targetFunc: "changeSizing",
			rate: 25
		});
		dojo.event.connect(dojo.body(), "onmouseup", this, "endSizing");

		e.preventDefault();
	},

	changeSizing: function(e){
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