flymis/WebRoot/dojojs/src/event/browser.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.event.browser");
dojo.require("dojo.event.common");

// FIXME: any particular reason this is in the global scope?
dojo._ie_clobber = new function(){
	this.clobberNodes = [];

	function nukeProp(node, prop){
		// try{ node.removeAttribute(prop); 	}catch(e){ /* squelch */ }
		try{ node[prop] = null; 			}catch(e){ /* squelch */ }
		try{ delete node[prop]; 			}catch(e){ /* squelch */ }
		// FIXME: JotLive needs this, but I'm not sure if it's too slow or not
		try{ node.removeAttribute(prop);	}catch(e){ /* squelch */ }
	}

	this.clobber = function(nodeRef){
		var na;
		var tna;
		if(nodeRef){
			tna = nodeRef.all || nodeRef.getElementsByTagName("*");
			na = [nodeRef];
			for(var x=0; x<tna.length; x++){
				// if we're gonna be clobbering the thing, at least make sure
				// we aren't trying to do it twice
				if(tna[x]["__doClobber__"]){
					na.push(tna[x]);
				}
			}
		}else{
			try{ window.onload = null; }catch(e){}
			na = (this.clobberNodes.length) ? this.clobberNodes : document.all;
		}
		tna = null;
		var basis = {};
		for(var i = na.length-1; i>=0; i=i-1){
			var el = na[i];
			try{
				if(el && el["__clobberAttrs__"]){
					for(var j=0; j<el.__clobberAttrs__.length; j++){
						nukeProp(el, el.__clobberAttrs__[j]);
					}
					nukeProp(el, "__clobberAttrs__");
					nukeProp(el, "__doClobber__");
				}
			}catch(e){ /* squelch! */};
		}
		na = null;
	}
}