Revert "ExtJS: backport Ext.ux.IFrame from ExtJS 4.2"

This reverts commit a7bafc3d.

We already have the same code in Toolkit.js

www/manager/Utils.js

@@ -48,156 +48,6 @@ var IP6_bracket_match = new RegExp("^\\[(" + IPV6_REGEXP + ")\\]");
 
 var IP64_match = new RegExp("^(?:" + IPV6_REGEXP + "|" + IPV4_REGEXP + ")$");
 
-Ext.define('Ext.ux.IFrame', {
-    extend: 'Ext.Component',
-
-    alias: 'widget.uxiframe',
-
-    loadMask: 'Loading...',
-
-    src: 'about:blank',
-
-    renderTpl: [
-        '<iframe src="{src}" name="{frameName}" width="100%" height="100%" frameborder="0"></iframe>'
-    ],
-
-    initComponent: function () {
-        this.callParent();
-
-       this.frameName = this.frameName || this.id + '-frame';
-
-        this.addEvents(
-            'beforeload',
-            'load'
-        );
-
-        Ext.apply(this.renderSelectors, {
-            iframeEl: 'iframe'
-        });
-    },
-
-    initEvents : function() {
-        var me = this;
-        me.callParent();
-        me.iframeEl.on('load', me.onLoad, me);
-    },
-
-    initRenderData: function() {
-        return Ext.apply(this.callParent(), {
-            src: this.src,
-            frameName: this.frameName
-        });
-    },
-
-    getBody: function() {
-        var doc = this.getDoc();
-        return doc.body || doc.documentElement;
-    },
-
-    getDoc: function() {
-        try {
-            return this.getWin().document;
-        } catch (ex) {
-            return null;
-        }
-    },
-
-    getWin: function() {
-        var me = this,
-            name = me.frameName,
-            win = Ext.isIE
-                ? me.iframeEl.dom.contentWindow
-                : window.frames[name];
-        return win;
-    },
-
-    getFrame: function() {
-        var me = this;
-        return me.iframeEl.dom;
-    },
-
-    beforeDestroy: function () {
-        this.cleanupListeners(true);
-        this.callParent();
-    },
-    
-    cleanupListeners: function(destroying){
-        var doc, prop;
-
-        if (this.rendered) {
-            try {
-               doc = this.getDoc();
-                if (doc) {
-                    Ext.EventManager.removeAll(doc);
-                    if (destroying) {
-                        for (prop in doc) {
-                            if (doc.hasOwnProperty && doc.hasOwnProperty(prop)) {
-                                delete doc[prop];
-                            }
-                        }
-                    }
-                }
-            } catch(e) { }
-        }
-    },
-
-    onLoad: function() {
-        var me = this,
-            doc = me.getDoc(),
-            fn = me.onRelayedEvent;
-
-        if (doc) {
-            try {
-                Ext.EventManager.removeAll(doc);
-
-                // These events need to be relayed from the inner document (where they stop
-                // bubbling) up to the outer document. This has to be done at the DOM level so
-                // the event reaches listeners on elements like the document body. The effected
-                // mechanisms that depend on this bubbling behavior are listed to the right
-                // of the event.
-                Ext.EventManager.on(doc, {
-                    mousedown: fn, // menu dismisal (MenuManager) and Window onMouseDown (toFront)
-                    mousemove: fn, // window resize drag detection
-                    mouseup: fn,   // window resize termination
-                    click: fn,     // not sure, but just to be safe
-                    dblclick: fn,  // not sure again
-                    scope: me
-                });
-            } catch(e) {
-                // cannot do this xss
-            }
-
-            // We need to be sure we remove all our events from the iframe on unload or we're going to LEAK!
-            Ext.EventManager.on(this.getWin(), 'beforeunload', me.cleanupListeners, me);
-
-            this.el.unmask();
-            this.fireEvent('load', this);
-
-        } else if(me.src && me.src != '') {
-
-            this.el.unmask();
-            this.fireEvent('error', this);
-        }
-
-
-    },
-
-    load: function (src) {
-        var me = this,
-            text = me.loadMask,
-            frame = me.getFrame();
-
-        if (me.fireEvent('beforeload', me, src) !== false) {
-            if (text && me.el) {
-                me.el.mask(text);
-            }
-
-            frame.src = me.src = (src || me.src);
-        }
-    }
-});
-
-
 Ext.define('PVE.Utils', { statics: {
 
     // this class only contains static functions