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78 lines
2.8 KiB
JavaScript
78 lines
2.8 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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var OfflineApps = {
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offlineAppRequested: function(aContentWindow) {
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if (!Services.prefs.getBoolPref("browser.offline-apps.notify"))
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return;
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let tab = BrowserApp.getTabForWindow(aContentWindow);
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let currentURI = aContentWindow.document.documentURIObject;
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// Don't bother showing UI if the user has already made a decision
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if (Services.perms.testExactPermission(currentURI, "offline-app") != Services.perms.UNKNOWN_ACTION)
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return;
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try {
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if (Services.prefs.getBoolPref("offline-apps.allow_by_default")) {
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// All pages can use offline capabilities, no need to ask the user
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return;
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}
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} catch(e) {
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// This pref isn't set by default, ignore failures
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}
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let host = currentURI.asciiHost;
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let notificationID = "offline-app-requested-" + host;
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let strings = Strings.browser;
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let buttons = [{
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label: strings.GetStringFromName("offlineApps.dontAllow2"),
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callback: function(aChecked) {
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if (aChecked)
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OfflineApps.disallowSite(aContentWindow.document);
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}
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},
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{
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label: strings.GetStringFromName("offlineApps.allow"),
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callback: function() {
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OfflineApps.allowSite(aContentWindow.document);
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},
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positive: true
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}];
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let requestor = BrowserApp.manifest ? "'" + BrowserApp.manifest.name + "'" : host;
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let message = strings.formatStringFromName("offlineApps.ask", [requestor], 1);
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let options = { checkbox: Strings.browser.GetStringFromName("offlineApps.dontAskAgain") };
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NativeWindow.doorhanger.show(message, notificationID, buttons, tab.id, options);
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},
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allowSite: function(aDocument) {
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Services.perms.add(aDocument.documentURIObject, "offline-app", Services.perms.ALLOW_ACTION);
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// When a site is enabled while loading, manifest resources will
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// start fetching immediately. This one time we need to do it
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// ourselves.
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this._startFetching(aDocument);
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},
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disallowSite: function(aDocument) {
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Services.perms.add(aDocument.documentURIObject, "offline-app", Services.perms.DENY_ACTION);
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},
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_startFetching: function(aDocument) {
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if (!aDocument.documentElement)
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return;
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let manifest = aDocument.documentElement.getAttribute("manifest");
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if (!manifest)
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return;
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let manifestURI = Services.io.newURI(manifest, aDocument.characterSet, aDocument.documentURIObject);
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let updateService = Cc["@mozilla.org/offlinecacheupdate-service;1"].getService(Ci.nsIOfflineCacheUpdateService);
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updateService.scheduleUpdate(manifestURI, aDocument.documentURIObject, aDocument.nodePrincipal, window);
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}
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};
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