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