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111 lines
2.9 KiB
JavaScript
111 lines
2.9 KiB
JavaScript
define("dijit/BackgroundIframe", [
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"require", // require.toUrl
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"./main", // to export dijit.BackgroundIframe
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"dojo/_base/config",
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"dojo/dom-construct", // domConstruct.create
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"dojo/dom-style", // domStyle.set
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"dojo/_base/lang", // lang.extend lang.hitch
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"dojo/on",
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"dojo/sniff", // has("ie"), has("mozilla"), has("quirks")
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"dojo/_base/window" // win.doc.createElement
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], function(require, dijit, config, domConstruct, domStyle, lang, on, has, win){
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// module:
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// dijit/BackgroundIFrame
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// TODO: remove _frames, it isn't being used much, since popups never release their
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// iframes (see [22236])
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var _frames = new function(){
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// summary:
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// cache of iframes
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var queue = [];
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this.pop = function(){
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var iframe;
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if(queue.length){
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iframe = queue.pop();
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iframe.style.display="";
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}else{
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if(has("ie") < 9){
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var burl = config["dojoBlankHtmlUrl"] || require.toUrl("dojo/resources/blank.html") || "javascript:\"\"";
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var html="<iframe src='" + burl + "' role='presentation'"
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+ " style='position: absolute; left: 0px; top: 0px;"
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+ "z-index: -1; filter:Alpha(Opacity=\"0\");'>";
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iframe = win.doc.createElement(html);
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}else{
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iframe = domConstruct.create("iframe");
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iframe.src = 'javascript:""';
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iframe.className = "dijitBackgroundIframe";
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iframe.setAttribute("role", "presentation");
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domStyle.set(iframe, "opacity", 0.1);
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}
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iframe.tabIndex = -1; // Magic to prevent iframe from getting focus on tab keypress - as style didn't work.
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}
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return iframe;
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};
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this.push = function(iframe){
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iframe.style.display="none";
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queue.push(iframe);
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}
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}();
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dijit.BackgroundIframe = function(/*DomNode*/ node){
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// summary:
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// For IE/FF z-index schenanigans. id attribute is required.
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//
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// description:
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// new dijit.BackgroundIframe(node).
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//
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// Makes a background iframe as a child of node, that fills
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// area (and position) of node
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if(!node.id){ throw new Error("no id"); }
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if(has("ie") || has("mozilla")){
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var iframe = (this.iframe = _frames.pop());
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node.appendChild(iframe);
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if(has("ie")<7 || has("quirks")){
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this.resize(node);
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this._conn = on(node, 'resize', lang.hitch(this, function(){
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this.resize(node);
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}));
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}else{
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domStyle.set(iframe, {
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width: '100%',
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height: '100%'
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});
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}
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}
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};
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lang.extend(dijit.BackgroundIframe, {
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resize: function(node){
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// summary:
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// Resize the iframe so it's the same size as node.
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// Needed on IE6 and IE/quirks because height:100% doesn't work right.
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if(this.iframe){
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domStyle.set(this.iframe, {
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width: node.offsetWidth + 'px',
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height: node.offsetHeight + 'px'
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});
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}
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},
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destroy: function(){
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// summary:
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// destroy the iframe
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if(this._conn){
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this._conn.remove();
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this._conn = null;
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}
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if(this.iframe){
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_frames.push(this.iframe);
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delete this.iframe;
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}
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}
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});
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return dijit.BackgroundIframe;
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});
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