flymis/WebRoot/dojojs/src/html/common.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.html.common");
dojo.require("dojo.lang.common");
dojo.require("dojo.dom");

dojo.lang.mixin(dojo.html, dojo.dom);

dojo.html.body = function(){
	dojo.deprecated("dojo.html.body() moved to dojo.body()", "0.5");
	return dojo.body();
}

// FIXME: we are going to assume that we can throw any and every rendering
// engine into the IE 5.x box model. In Mozilla, we do this w/ CSS.
// Need to investigate for KHTML and Opera

dojo.html.getEventTarget = function(/* DOMEvent */evt){
	//	summary
	//	Returns the target of an event
	if(!evt) { evt = dojo.global().event || {} };
	var t = (evt.srcElement ? evt.srcElement : (evt.target ? evt.target : null));
	while((t)&&(t.nodeType!=1)){ t = t.parentNode; }
	return t;	//	HTMLElement
}

dojo.html.getViewport = function(){
	//	summary
	//	Returns the dimensions of the viewable area of a browser window
	var _window = dojo.global();
	var _document = dojo.doc();
	var w = 0;
	var h = 0;

	if(dojo.render.html.mozilla){
		// mozilla
		w = _document.documentElement.clientWidth;
		h = _window.innerHeight;
	}else if(!dojo.render.html.opera && _window.innerWidth){
		//in opera9, dojo.body().clientWidth should be used, instead
		//of window.innerWidth/document.documentElement.clientWidth
		//so we have to check whether it is opera
		w = _window.innerWidth;
		h = _window.innerHeight;
	} else if (!dojo.render.html.opera && dojo.exists(_document, "documentElement.clientWidth")){
		// IE6 Strict
		var w2 = _document.documentElement.clientWidth;
		// this lets us account for scrollbars
		if(!w || w2 && w2 < w) {
			w = w2;
		}
		h = _document.documentElement.clientHeight;