michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: let Cu = Components.utils;
michael@0: let Ci = Components.interfaces;
michael@0: 
michael@0: Cu.import("resource:///modules/tabview/utils.jsm");
michael@0: 
michael@0: // Bug 671101 - directly using webProgress in this context
michael@0: // causes docShells to leak
michael@0: this.__defineGetter__("webProgress", function () {
michael@0:   let ifaceReq = docShell.QueryInterface(Ci.nsIInterfaceRequestor);
michael@0:   return ifaceReq.getInterface(Ci.nsIWebProgress);
michael@0: });
michael@0: 
michael@0: // ----------
michael@0: // WindowEventHandler
michael@0: //
michael@0: // Handles events dispatched by the content window.
michael@0: let WindowEventHandler = {
michael@0:   // ----------
michael@0:   // Function: onDOMWillOpenModalDialog
michael@0:   // Sends a synchronous message when the "onDOMWillOpenModalDialog" event
michael@0:   // is fired right before a modal dialog will be opened by the current page.
michael@0:   onDOMWillOpenModalDialog: function WEH_onDOMWillOpenModalDialog(event) {
michael@0:     // (event.isTrusted == true) when the event is generated by a user action
michael@0:     // and does not originate from a script.
michael@0:     if (!event.isTrusted)
michael@0:       return;
michael@0: 
michael@0:     // we're intentionally sending a synchronous message to handle this event
michael@0:     // as quick as possible, switch the selected tab and hide the tabview
michael@0:     // before the modal dialog is shown
michael@0:     sendSyncMessage("Panorama:DOMWillOpenModalDialog");
michael@0:   },
michael@0: 
michael@0:   // ----------
michael@0:   // Function: onMozAfterPaint
michael@0:   // Sends an asynchronous message when the "onMozAfterPaint" event
michael@0:   // is fired.
michael@0:   onMozAfterPaint: function WEH_onMozAfterPaint(event) {
michael@0:     if (event.clientRects.length > 0) {
michael@0:       sendAsyncMessage("Panorama:MozAfterPaint");
michael@0:     }
michael@0:   }
michael@0: };
michael@0: 
michael@0: // add event listeners
michael@0: addEventListener("DOMWillOpenModalDialog", WindowEventHandler.onDOMWillOpenModalDialog, false);
michael@0: addEventListener("MozAfterPaint", WindowEventHandler.onMozAfterPaint, false);
michael@0: 
michael@0: // ----------
michael@0: // WindowMessageHandler
michael@0: //
michael@0: // Handles messages sent by the chrome process.
michael@0: let WindowMessageHandler = {
michael@0:   // ----------
michael@0:   // Function: isDocumentLoaded
michael@0:   // Checks if the currently active document is loaded.
michael@0:   isDocumentLoaded: function WMH_isDocumentLoaded(cx) {
michael@0:     let isLoaded = (content.document.readyState != "uninitialized" &&
michael@0:                     !webProgress.isLoadingDocument);
michael@0: 
michael@0:     sendAsyncMessage(cx.name, {isLoaded: isLoaded});
michael@0:   },
michael@0: 
michael@0:   // ----------
michael@0:   // Function: isImageDocument
michael@0:   // Checks if the currently active document is an image document or not.
michael@0:   isImageDocument: function WMH_isImageDocument(cx) {
michael@0:     let isImageDocument = (content.document instanceof Ci.nsIImageDocument);
michael@0: 
michael@0:     sendAsyncMessage(cx.name, {isImageDocument: isImageDocument});
michael@0:   }
michael@0: };
michael@0: 
michael@0: // add message listeners
michael@0: addMessageListener("Panorama:isDocumentLoaded", WindowMessageHandler.isDocumentLoaded);
michael@0: addMessageListener("Panorama:isImageDocument", WindowMessageHandler.isImageDocument);
michael@0: