gecko/webapprt/content/webapp.js

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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/. */
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
Cu.import("resource://webapprt/modules/WebappRT.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyGetter(this, "gAppBrowser",
function() document.getElementById("content"));
let progressListener = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
Ci.nsISupportsWeakReference]),
onLocationChange: function onLocationChange(progress, request, location,
flags) {
// Set the title of the window to the name of the webapp, adding the origin
// of the page being loaded if it's from a different origin than the app
// (per security bug 741955, which specifies that other-origin pages loaded
// in runtime windows must be identified in chrome).
let title = WebappRT.config.app.manifest.name;
let origin = location.prePath;
if (origin != WebappRT.config.app.origin) {
title = origin + " - " + title;
}
document.documentElement.setAttribute("title", title);
}
};
function onLoad() {
window.removeEventListener("load", onLoad, false);
let cmdLineArgs = window.arguments && window.arguments[0] ?
window.arguments[0].QueryInterface(Ci.nsIPropertyBag2) :
null;
// In test mode, listen for test app installations and load the -test-mode URL
// if present.
if (cmdLineArgs && cmdLineArgs.hasKey("test-mode")) {
// This observer is only present until the first app gets installed.
// It adds the progress listener, which can't happen until then because
// the progress listener needs to access the app manifest, which isn't
// available beforehand.
Services.obs.addObserver(function observeOnce(subj, topic, data) {
Services.obs.removeObserver(observeOnce, "webapprt-test-did-install");
gAppBrowser.webProgress.
addProgressListener(progressListener,Ci.nsIWebProgress.NOTIFY_LOCATION);
}, "webapprt-test-did-install", false);
// This observer is present for the lifetime of the runtime.
Services.obs.addObserver(function observe(subj, topic, data) {
initWindow(false);
}, "webapprt-test-did-install", false);
let testURL = cmdLineArgs.get("test-mode");
if (testURL) {
gAppBrowser.loadURI(testURL);
}
return;
}
gAppBrowser.webProgress.
addProgressListener(progressListener, Ci.nsIWebProgress.NOTIFY_LOCATION);
initWindow(!!cmdLineArgs);
}
window.addEventListener("load", onLoad, false);
function onUnload() {
gAppBrowser.removeProgressListener(progressListener);
}
window.addEventListener("unload", onUnload, false);
function initWindow(isMainWindow) {
let manifest = WebappRT.config.app.manifest;
updateMenuItems();
// Listen for clicks to redirect <a target="_blank"> to the browser.
// This doesn't capture clicks so content can capture them itself and do
// something different if it doesn't want the default behavior.
gAppBrowser.addEventListener("click", onContentClick, false, true);
// Only load the webapp on the initially launched main window
if (isMainWindow) {
// Load the webapp's launch URL
let installRecord = WebappRT.config.app;
let url = Services.io.newURI(installRecord.origin, null, null);
if (manifest.launch_path)
url = Services.io.newURI(manifest.launch_path, null, url);
gAppBrowser.setAttribute("src", url.spec);
}
}
/**
* Direct a click on <a target="_blank"> to the user's default browser.
*
* In the long run, it might be cleaner to move this to an extension of
* nsIWebBrowserChrome3::onBeforeLinkTraversal.
*
* @param {DOMEvent} event the DOM event
**/
function onContentClick(event) {
let target = event.target;
if (!(target instanceof HTMLAnchorElement) ||
target.getAttribute("target") != "_blank") {
return;
}
let uri = Services.io.newURI(target.href,
target.ownerDocument.characterSet,
null);
// Direct the URL to the browser.
Cc["@mozilla.org/uriloader/external-protocol-service;1"].
getService(Ci.nsIExternalProtocolService).
getProtocolHandlerInfo(uri.scheme).
launchWithURI(uri);
// Prevent the runtime from loading the URL. We do this after directing it
// to the browser to give the runtime a shot at handling the URL if we fail
// to direct it to the browser for some reason.
event.preventDefault();
}
// On Mac, we dynamically create the label for the Quit menuitem, using
// a string property to inject the name of the webapp into it.
function updateMenuItems() {
#ifdef XP_MACOSX
let installRecord = WebappRT.config.app;
let manifest = WebappRT.config.app.manifest;
let bundle =
Services.strings.createBundle("chrome://webapprt/locale/webapp.properties");
let quitLabel = bundle.formatStringFromName("quitApplicationCmdMac.label",
[manifest.name], 1);
let hideLabel = bundle.formatStringFromName("hideApplicationCmdMac.label",
[manifest.name], 1);
document.getElementById("menu_FileQuitItem").setAttribute("label", quitLabel);
document.getElementById("menu_mac_hide_app").setAttribute("label", hideLabel);
#endif
}
function updateEditUIVisibility() {
#ifndef XP_MACOSX
let editMenuPopupState = document.getElementById("menu_EditPopup").state;
// The UI is visible if the Edit menu is opening or open, if the context menu
// is open, or if the toolbar has been customized to include the Cut, Copy,
// or Paste toolbar buttons.
gEditUIVisible = editMenuPopupState == "showing" ||
editMenuPopupState == "open";
// If UI is visible, update the edit commands' enabled state to reflect
// whether or not they are actually enabled for the current focus/selection.
if (gEditUIVisible) {
goUpdateGlobalEditMenuItems();
}
// Otherwise, enable all commands, so that keyboard shortcuts still work,
// then lazily determine their actual enabled state when the user presses
// a keyboard shortcut.
else {
goSetCommandEnabled("cmd_undo", true);
goSetCommandEnabled("cmd_redo", true);
goSetCommandEnabled("cmd_cut", true);
goSetCommandEnabled("cmd_copy", true);
goSetCommandEnabled("cmd_paste", true);
goSetCommandEnabled("cmd_selectAll", true);
goSetCommandEnabled("cmd_delete", true);
goSetCommandEnabled("cmd_switchTextDirection", true);
}
#endif
}