gecko-dev/webapprt/Startup.jsm

144 lines
5.1 KiB
JavaScript

/* 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/. */
/* This module is imported at the startup of an application. It takes care of
* permissions installation, application url loading, security settings. Put
* stuff here that you want to happen once on startup before the webapp is
* loaded. */
this.EXPORTED_SYMBOLS = ["startup"];
const Ci = Components.interfaces;
const Cu = Components.utils;
Cu.import("resource://gre/modules/Services.jsm");
// Initialize DOMApplicationRegistry by importing Webapps.jsm.
Cu.import("resource://gre/modules/Webapps.jsm");
Cu.import("resource://gre/modules/AppsUtils.jsm");
Cu.import("resource://gre/modules/PermissionsInstaller.jsm");
Cu.import('resource://gre/modules/Payment.jsm');
Cu.import("resource://gre/modules/Task.jsm");
Cu.import("resource://gre/modules/Promise.jsm");
Cu.import("resource://gre/modules/osfile.jsm");
// Initialize window-independent handling of webapps- notifications.
Cu.import("resource://webapprt/modules/WebappsHandler.jsm");
Cu.import("resource://webapprt/modules/WebappRT.jsm");
Cu.import("resource://webapprt/modules/WebRTCHandler.jsm");
const PROFILE_DIR = OS.Constants.Path.profileDir;
function isFirstRunOrUpdate() {
let savedBuildID = null;
try {
savedBuildID = Services.prefs.getCharPref("webapprt.buildID");
} catch (e) {}
let ourBuildID = Services.appinfo.platformBuildID;
if (ourBuildID != savedBuildID) {
Services.prefs.setCharPref("webapprt.buildID", ourBuildID);
return true;
}
return false;
}
function writeFile(aPath, aData) {
return Task.spawn(function() {
let data = TextEncoder().encode(aData);
yield OS.File.writeAtomic(aPath, data, { tmpPath: aPath + ".tmp" });
});
}
function createBrandingFiles() {
return Task.spawn(function() {
let manifest = WebappRT.localeManifest;
let name = WebappRT.localeManifest.name;
let developer = " ";
if (WebappRT.localeManifest.developer) {
developer = WebappRT.localeManifest.developer.name;
}
let brandDTDContent = '<!ENTITY brandShortName "' + name + '">\n\
<!ENTITY brandFullName "' + name + '">\n\
<!ENTITY vendorShortName "' + developer + '">\n\
<!ENTITY trademarkInfo.part1 " ">';
yield writeFile(OS.Path.join(PROFILE_DIR, "brand.dtd"), brandDTDContent);
let brandPropertiesContent = 'brandShortName=' + name + '\n\
brandFullName=' + name + '\n\
vendorShortName=' + developer;
yield writeFile(OS.Path.join(PROFILE_DIR, "brand.properties"),
brandPropertiesContent);
});
}
// Observes all the events needed to actually launch an application.
// It waits for XUL window and webapps registry loading.
this.startup = function(window) {
return Task.spawn(function () {
// Observe registry loading.
let deferredRegistry = Promise.defer();
function observeRegistryLoading() {
Services.obs.removeObserver(observeRegistryLoading, "webapps-registry-start");
deferredRegistry.resolve();
}
Services.obs.addObserver(observeRegistryLoading, "webapps-registry-start", false);
// Observe XUL window loading.
// For tests, it could be already loaded.
let deferredWindowLoad = Promise.defer();
if (window.document && window.document.getElementById("content")) {
deferredWindowLoad.resolve();
} else {
window.addEventListener("load", function onLoad() {
window.removeEventListener("load", onLoad, false);
deferredWindowLoad.resolve();
});
}
// Wait for webapps registry loading.
yield deferredRegistry.promise;
// Install/update permissions and get the appID from the webapps registry.
let appID = Ci.nsIScriptSecurityManager.NO_APP_ID;
let manifestURL = WebappRT.config.app.manifestURL;
if (manifestURL) {
appID = DOMApplicationRegistry.getAppLocalIdByManifestURL(manifestURL);
// On firstrun, set permissions to their default values.
// When the webapp runtime is updated, update the permissions.
// TODO: Update the permissions when the application is updated.
if (isFirstRunOrUpdate(Services.prefs)) {
PermissionsInstaller.installPermissions(WebappRT.config.app, true);
yield createBrandingFiles();
}
}
// Branding substitution
let aliasFile = Components.classes["@mozilla.org/file/local;1"]
.createInstance(Ci.nsIFile);
aliasFile.initWithPath(PROFILE_DIR);
let aliasURI = Services.io.newFileURI(aliasFile);
Services.io.getProtocolHandler("resource")
.QueryInterface(Ci.nsIResProtocolHandler)
.setSubstitution("webappbranding", aliasURI);
// Wait for XUL window loading
yield deferredWindowLoad.promise;
// Get the <browser> element in the webapp.xul window.
let appBrowser = window.document.getElementById("content");
// Set the principal to the correct appID and launch the application.
appBrowser.docShell.setIsApp(appID);
appBrowser.setAttribute("src", WebappRT.launchURI);
}).then(null, Cu.reportError.bind(Cu));
}