The Tor Browser: mobile/android/chrome/content/OfflineApps.js@fc2d59ddac77

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this file,

     3  * You can obtain one at http://mozilla.org/MPL/2.0/. */

     4 "use strict";

     6 var OfflineApps = {

     7   offlineAppRequested: function(aContentWindow) {

     8     if (!Services.prefs.getBoolPref("browser.offline-apps.notify"))

     9       return;

    11     let tab = BrowserApp.getTabForWindow(aContentWindow);

    12     let currentURI = aContentWindow.document.documentURIObject;

    14     // Don't bother showing UI if the user has already made a decision

    15     if (Services.perms.testExactPermission(currentURI, "offline-app") != Services.perms.UNKNOWN_ACTION)

    16       return;

    18     try {

    19       if (Services.prefs.getBoolPref("offline-apps.allow_by_default")) {

    20         // All pages can use offline capabilities, no need to ask the user

    21         return;

    22       }

    23     } catch(e) {

    24       // This pref isn't set by default, ignore failures

    25     }

    27     let host = currentURI.asciiHost;

    28     let notificationID = "offline-app-requested-" + host;

    30     let strings = Strings.browser;

    31     let buttons = [{

    32       label: strings.GetStringFromName("offlineApps.allow"),

    33       callback: function() {

    34         OfflineApps.allowSite(aContentWindow.document);

    35       }

    36     },

    37     {

    38       label: strings.GetStringFromName("offlineApps.dontAllow2"),

    39       callback: function(aChecked) {

    40         if (aChecked)

    41           OfflineApps.disallowSite(aContentWindow.document);

    42       }

    43     }];

    45     let requestor = BrowserApp.manifest ? "'" + BrowserApp.manifest.name + "'" : host;

    46     let message = strings.formatStringFromName("offlineApps.ask", [requestor], 1);

    47     let options = { checkbox: Strings.browser.GetStringFromName("offlineApps.dontAskAgain") };

    48     NativeWindow.doorhanger.show(message, notificationID, buttons, tab.id, options);

    49   },

    51   allowSite: function(aDocument) {

    52     Services.perms.add(aDocument.documentURIObject, "offline-app", Services.perms.ALLOW_ACTION);

    54     // When a site is enabled while loading, manifest resources will

    55     // start fetching immediately.  This one time we need to do it

    56     // ourselves.

    57     this._startFetching(aDocument);

    58   },

    60   disallowSite: function(aDocument) {

    61     Services.perms.add(aDocument.documentURIObject, "offline-app", Services.perms.DENY_ACTION);

    62   },

    64   _startFetching: function(aDocument) {

    65     if (!aDocument.documentElement)

    66       return;

    68     let manifest = aDocument.documentElement.getAttribute("manifest");

    69     if (!manifest)

    70       return;

    72     let manifestURI = Services.io.newURI(manifest, aDocument.characterSet, aDocument.documentURIObject);

    73     let updateService = Cc["@mozilla.org/offlinecacheupdate-service;1"].getService(Ci.nsIOfflineCacheUpdateService);

    74     updateService.scheduleUpdate(manifestURI, aDocument.documentURIObject, window);

    75   }

    76 };

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