flymis/WebRoot/dojojs/src/html/iframe.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.iframe");
dojo.require("dojo.html.util");

// thanks burstlib!
dojo.html.iframeContentWindow = function(/* HTMLIFrameElement */iframe_el) {
	//	summary
	//	returns the window reference of the passed iframe
	var win = dojo.html.getDocumentWindow(dojo.html.iframeContentDocument(iframe_el)) ||
		// Moz. TODO: is this available when defaultView isn't?
		dojo.html.iframeContentDocument(iframe_el).__parent__ ||
		(iframe_el.name && document.frames[iframe_el.name]) || null;
	return win;	//	Window
}

dojo.html.iframeContentDocument = function(/* HTMLIFrameElement */iframe_el){
	//	summary
	//	returns a reference to the document object inside iframe_el
	var doc = iframe_el.contentDocument // W3
		|| ((iframe_el.contentWindow)&&(iframe_el.contentWindow.document))	// IE
		|| ((iframe_el.name)&&(document.frames[iframe_el.name])&&(document.frames[iframe_el.name].document)) 
		|| null;
	return doc;	//	HTMLDocument
}

dojo.html.BackgroundIframe = function(/* HTMLElement */node) {
	//	summary
	//	For IE z-index schenanigans
	//	Two possible uses:
	//	1. new dojo.html.BackgroundIframe(node)
	//		Makes a background iframe as a child of node, that fills area (and position) of node
	//	2. new dojo.html.BackgroundIframe()
	//		Attaches frame to dojo.body().  User must call size() to set size.
	if(dojo.render.html.ie55 || dojo.render.html.ie60) {
		var html="<iframe src='javascript:false'"
			+ "' style='position: absolute; left: 0px; top: 0px; width: 100%; height: 100%;"
			+ "z-index: -1; filter:Alpha(Opacity=\"0\");' "
			+ ">";
		this.iframe = dojo.doc().createElement(html);
		this.iframe.tabIndex = -1; // Magic to prevent iframe from getting focus on tab keypress - as style didnt work.
		if(node){
			node.appendChild(this.iframe);
			this.domNode=node;
		}else{
			dojo.body().appendChild(this.iframe);
			this.iframe.style.display="none";
		}
	}
}
dojo.lang.extend(dojo.html.BackgroundIframe, {
	iframe: null,