mozilla-history/uriloader/exthandler/nsWebHandlerApp.js

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JavaScript

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is
* Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Shawn Wilsher <me@shawnwilsher.com>
* Myk Melez <myk@mozilla.org>
* Dan Mosedale <dmose@mozilla.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
////////////////////////////////////////////////////////////////////////////////
//// Constants
const Ci = Components.interfaces;
const Cr = Components.results;
const Cc = Components.classes;
////////////////////////////////////////////////////////////////////////////////
//// nsWebHandler class
function nsWebHandlerApp() {}
nsWebHandlerApp.prototype = {
//////////////////////////////////////////////////////////////////////////////
//// nsWebHandler
classDescription: "A web handler for protocols and content",
classID: Components.ID("8b1ae382-51a9-4972-b930-56977a57919d"),
contractID: "@mozilla.org/uriloader/web-handler-app;1",
_name: null,
_uriTemplate: null,
//////////////////////////////////////////////////////////////////////////////
//// nsIHandlerApp
get name() {
return this._name;
},
set name(aName) {
this._name = aName;
},
equals: function(aHandlerApp) {
if (!aHandlerApp)
throw Cr.NS_ERROR_NULL_POINTER;
if (aHandlerApp instanceof Ci.nsIWebHandlerApp &&
aHandlerApp.uriTemplate &&
this.uriTemplate &&
aHandlerApp.uriTemplate == this.uriTemplate)
return true;
return false;
},
launchWithURI: function nWHA__launchWithURI(aURI, aWindowContext) {
// XXX need to strip passwd & username from URI to handle, as per the
// WhatWG HTML5 draft. nsSimpleURL, which is what we're going to get,
// can't do this directly. Ideally, we'd fix nsStandardURL to make it
// possible to turn off all of its quirks handling, and use that...
// encode the URI to be handled
var escapedUriSpecToHandle = encodeURIComponent(aURI.spec);
// insert the encoded URI and create the object version
var uriSpecToSend = this.uriTemplate.replace("%s", escapedUriSpecToHandle);
var ioService = Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService);
var uriToSend = ioService.newURI(uriSpecToSend, null, null);
// if we have a window context, use the URI loader to load there
if (aWindowContext) {
// create a channel from this URI
var channel = ioService.newChannelFromURI(uriToSend);
channel.loadFlags = Ci.nsIChannel.LOAD_DOCUMENT_URI;
// load the channel
var uriLoader = Cc["@mozilla.org/uriloader;1"].
getService(Ci.nsIURILoader);
// XXX ideally, aIsContentPreferred (the second param) should really be
// passed in from above. Practically, true is probably a reasonable
// default since browsers don't care much, and link click is likely to be
// the more interesting case for non-browser apps. See
// <https://bugzilla.mozilla.org/show_bug.cgi?id=392957#c9> for details.
uriLoader.openURI(channel, true, aWindowContext);
return;
}
// since we don't have a window context, hand it off to a browser
var windowMediator = Cc["@mozilla.org/appshell/window-mediator;1"].
getService(Ci.nsIWindowMediator);
// get browser dom window
var browserDOMWin = windowMediator.getMostRecentWindow("navigator:browser")
.QueryInterface(Ci.nsIDOMChromeWindow)
.browserDOMWindow;
// if we got an exception, there are several possible reasons why:
// a) this gecko embedding doesn't provide an nsIBrowserDOMWindow
// implementation (i.e. doesn't support browser-style functionality),
// so we need to kick the URL out to the OS default browser. This is
// the subject of bug 394479.
// b) this embedding does provide an nsIBrowserDOMWindow impl, but
// there doesn't happen to be a browser window open at the moment; one
// should be opened. It's not clear whether this situation will really
// ever occur in real life. If it does, the only API that I can find
// that seems reasonably likely to work for most embedders is the
// command line handler.
// c) something else went wrong
//
// it's not clear how one would differentiate between the three cases
// above, so for now we don't catch the exception
// openURI
browserDOMWin.openURI(uriToSend,
null, // no window.opener
Ci.nsIBrowserDOMWindow.OPEN_DEFAULT_WINDOW,
Ci.nsIBrowserDOMWindow.OPEN_NEW);
return;
},
//////////////////////////////////////////////////////////////////////////////
//// nsIWebHandlerApp
get uriTemplate() {
return this._uriTemplate;
},
set uriTemplate(aURITemplate) {
this._uriTemplate = aURITemplate;
},
//////////////////////////////////////////////////////////////////////////////
//// nsISupports
QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebHandlerApp, Ci.nsIHandlerApp])
};
////////////////////////////////////////////////////////////////////////////////
//// Module
let components = [nsWebHandlerApp];
function NSGetModule(compMgr, fileSpec)
{
return XPCOMUtils.generateModule(components);
}