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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
var OfflineApps = {
offlineAppRequested: function(aContentWindow) {
if (!Services.prefs.getBoolPref("browser.offline-apps.notify"))
return;
let tab = BrowserApp.getTabForWindow(aContentWindow);
let currentURI = aContentWindow.document.documentURIObject;
// Don't bother showing UI if the user has already made a decision
if (Services.perms.testExactPermission(currentURI, "offline-app") != Services.perms.UNKNOWN_ACTION)
return;
try {
if (Services.prefs.getBoolPref("offline-apps.allow_by_default")) {
// All pages can use offline capabilities, no need to ask the user
return;
}
} catch(e) {
// This pref isn't set by default, ignore failures
}
let host = currentURI.asciiHost;
let notificationID = "offline-app-requested-" + host;
let strings = Strings.browser;
let buttons = [{
label: strings.GetStringFromName("offlineApps.dontAllow2"),
callback: function(aChecked) {
if (aChecked)
OfflineApps.disallowSite(aContentWindow.document);
}
},
{
label: strings.GetStringFromName("offlineApps.allow"),
callback: function() {
OfflineApps.allowSite(aContentWindow.document);
},
positive: true
}];
let requestor = BrowserApp.manifest ? "'" + BrowserApp.manifest.name + "'" : host;
let message = strings.formatStringFromName("offlineApps.ask", [requestor], 1);
let options = { checkbox: Strings.browser.GetStringFromName("offlineApps.dontAskAgain") };
NativeWindow.doorhanger.show(message, notificationID, buttons, tab.id, options);
},
allowSite: function(aDocument) {
Services.perms.add(aDocument.documentURIObject, "offline-app", Services.perms.ALLOW_ACTION);
// When a site is enabled while loading, manifest resources will
// start fetching immediately. This one time we need to do it
// ourselves.
this._startFetching(aDocument);
},
disallowSite: function(aDocument) {
Services.perms.add(aDocument.documentURIObject, "offline-app", Services.perms.DENY_ACTION);
},
_startFetching: function(aDocument) {
if (!aDocument.documentElement)
return;
let manifest = aDocument.documentElement.getAttribute("manifest");
if (!manifest)
return;
let manifestURI = Services.io.newURI(manifest, aDocument.characterSet, aDocument.documentURIObject);
let updateService = Cc["@mozilla.org/offlinecacheupdate-service;1"].getService(Ci.nsIOfflineCacheUpdateService);
updateService.scheduleUpdate(manifestURI, aDocument.documentURIObject, aDocument.nodePrincipal, window);
}
};
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