gecko-dev/webapprt/content/webapp.js

180 строки
6.6 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/. */
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
Cu.import("resource://webapprt/modules/Startup.jsm");
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"));
#ifdef MOZ_CRASHREPORTER
XPCOMUtils.defineLazyServiceGetter(this, "gCrashReporter",
"@mozilla.org/toolkit/crash-reporter;1",
"nsICrashReporter");
#endif
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);
},
onStateChange: function onStateChange(aProgress, aRequest, aFlags, aStatus) {
if (aRequest instanceof Ci.nsIChannel &&
aFlags & Ci.nsIWebProgressListener.STATE_START &&
aFlags & Ci.nsIWebProgressListener.STATE_IS_DOCUMENT) {
updateCrashReportURL(aRequest.URI);
}
}
};
function onLoad() {
window.removeEventListener("load", onLoad, false);
let args = window.arguments && window.arguments[0] ?
window.arguments[0].QueryInterface(Ci.nsIPropertyBag2) :
null;
gAppBrowser.addProgressListener(progressListener,
Ci.nsIWebProgress.NOTIFY_LOCATION |
Ci.nsIWebProgress.NOTIFY_STATE_DOCUMENT);
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);
// This is not the only way that a URL gets loaded in the app browser.
// When content calls openWindow(), there are no window.arguments,
// but something in the platform loads the URL specified by the content.
if (args && args.hasKey("url")) {
gAppBrowser.setAttribute("src", args.get("url"));
}
}
window.addEventListener("load", onLoad, false);
function onUnload() {
gAppBrowser.removeProgressListener(progressListener);
}
window.addEventListener("unload", onUnload, false);
/**
* 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
}
function updateCrashReportURL(aURI) {
#ifdef MOZ_CRASHREPORTER
if (!gCrashReporter.enabled)
return;
let uri = aURI.clone();
// uri.userPass throws on protocols without the concept of authentication,
// like about:, which tests can load, so we catch and ignore an exception.
try {
if (uri.userPass != "") {
uri.userPass = "";
}
} catch (e) {}
gCrashReporter.annotateCrashReport("URL", uri.spec);
#endif
}