pjs/calendar/resources/content/calendarService.js

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JavaScript

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** 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 mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Seth Spitzer <sspitzer@netscape.com>
* Robert Ginda <rginda@netscape.com>
*
* 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 ***** */
/*
* This file contains the following calendar related components:
* 1. Command line handler service, for responding to the -webcal command line
* option. (CLineHandler)
* 2. Content handler for responding to content of type text/calendar
* (ICALContentHandler)
* 3. Protocol handler for supplying a channel to the browser when an webcal://
* link is clicked. (ICALProtocolHandler)
* 4. A (nearly empty) imeplementation of nsIChannel for telling the browser
* that webcal:// links have the content type text/calendar (BogusChannel)
*/
/* components defined in this file */
const CLINE_SERVICE_CONTRACTID =
"@mozilla.org/commandlinehandler/general-startup;1?type=calendar";
const CLINE_SERVICE_CID =
Components.ID("{65ef4b0b-d116-4b93-bf8a-84525992bf27}");
const ICALCNT_HANDLER_CONTRACTID =
"@mozilla.org/uriloader/content-handler;1?type=text/calendar";
const ICALCNT_HANDLER_CID =
Components.ID("{9ebf4c8a-7770-40a6-aeed-e1738129535a}");
const ICALPROT_HANDLER_CONTRACTID =
"@mozilla.org/network/protocol;1?name=webcal";
const ICALPROT_HANDLER_CID =
Components.ID("{d320ba05-88cf-44a6-b718-87a72ef05918}");
/* components used in this file */
const MEDIATOR_CONTRACTID =
"@mozilla.org/appshell/window-mediator;1";
const STANDARDURL_CONTRACTID =
"@mozilla.org/network/standard-url;1";
const ASS_CONTRACTID =
"@mozilla.org/appshell/appShellService;1";
const WINDOWWATCHER_CONTRACTID =
"@mozilla.org/embedcomp/window-watcher;1";
/* interafces used in this file */
const nsIWindowMediator = Components.interfaces.nsIWindowMediator;
const nsICmdLineHandler = Components.interfaces.nsICmdLineHandler;
const nsICategoryManager = Components.interfaces.nsICategoryManager;
const nsIContentHandler = Components.interfaces.nsIContentHandler;
const nsIFactory = Components.interfaces.nsIFactory;
const nsIProtocolHandler = Components.interfaces.nsIProtocolHandler;
const nsIURI = Components.interfaces.nsIURI;
const nsIStandardURL = Components.interfaces.nsIStandardURL;
const nsIChannel = Components.interfaces.nsIChannel;
const nsIRequest = Components.interfaces.nsIRequest;
const nsIAppShellService = Components.interfaces.nsIAppShellService;
const nsISupports = Components.interfaces.nsISupports;
const nsIWindowWatcher = Components.interfaces.nsIWindowWatcher;
if ("nsICommandLineHandler" in Components.interfaces)
const nsICommandLineHandler = Components.interfaces.nsICommandLineHandler;
/* Command Line handler service */
function CLineService()
{}
CLineService.prototype = {
/* nsISupports */
QueryInterface : function service_qi(iid) {
if (iid.equals(nsISupports))
return this;
if (nsICmdLineHandler && iid.equals(nsICmdLineHandler))
return this;
if (nsICommandLineHandler && iid.equals(nsICommandLineHandler))
return this;
throw Components.results.NS_ERROR_NO_INTERFACE;
},
/* nsICmdLineHandler */
commandLineArgument : "-calendar",
prefNameForStartup : "general.startup.calendar",
chromeUrlForTask : "chrome://calendar/content",
helpText : "Start with calendar",
handlesArgs : false,
defaultArgs : "",
openWindowWithArgs : true,
/* nsICommandLineHandler */
handle : function service_handle(cmdLine) {
if (cmdLine.handleFlag("calendar", false)) {
wwatch = Components.classes[WINDOWWATCHER_CONTRACTID]
.getService(nsIWindowWatcher);
wwatch.openWindow(null, "chrome://calendar/content/",
"_blank", "chrome,dialog=no,all", cmdLine);
cmdLine.preventDefault = true;
}
},
helpInfo : " -calendar Start with the calendar.\n"
};
/* factory for command line handler service (CLineService) */
var CLineFactory = {
createInstance : function (outer, iid) {
if (outer != null)
throw Components.results.NS_ERROR_NO_AGGREGATION;
return new CLineService().QueryInterface(iid);
}
}
/* text/calendar content handler */
function ICALContentHandler ()
{}
ICALContentHandler.prototype.QueryInterface =
function (iid) {
if (iid.equals(nsIContentHandler) ||
iid.equals(nsISupports))
return this;
Components.returnCode = Components.results.NS_ERROR_NO_INTERFACE;
return null;
}
ICALContentHandler.prototype.handleContent =
function (aContentType, param2, param3, param4)
{
var aWindowTarget, aRequest;
if (param4 === undefined)
{// Moz1.8+ uses 3 params: (aContentType, aWindowTarget, aRequest)
aWindowTarget = param2;
aRequest = param3;
}
else
{// Moz1.7- uses 4 params: (aContentType, aCommand, aWindowTarget, aRequest)
aWindowTarget = param3;
aRequest = param4;
}
var e;
var channel = aRequest.QueryInterface(nsIChannel);
/*
dump ("ICALContentHandler.handleContent (" + aContentType + ", " +
aWindowTarget + ", " + channel.URI.spec + ")\n");
*/
var windowManager =
Components.classes[MEDIATOR_CONTRACTID].getService(nsIWindowMediator);
var w = windowManager.getMostRecentWindow("calendarMainWindow");
if (w)
{
w.focus();
w.gCalendarWindow.calendarManager.checkCalendarURL( channel );
}
else
{
var ass =
Components.classes[ASS_CONTRACTID].getService(nsIAppShellService);
w = ass.hiddenDOMWindow;
var args = new Object ();
args.channel = channel;
w.openDialog("chrome://calendar/content/calendar.xul", "calendar", "chrome,menubar,resizable,scrollbars,status,toolbar,dialog=no", args);
}
}
/* content handler factory object (ICALContentHandler) */
var ICALContentHandlerFactory = new Object();
ICALContentHandlerFactory.createInstance =
function (outer, iid) {
if (outer != null)
throw Components.results.NS_ERROR_NO_AGGREGATION;
if (!iid.equals(nsIContentHandler) && !iid.equals(nsISupports))
throw Components.results.NS_ERROR_INVALID_ARG;
return new ICALContentHandler();
}
/* webcal protocol handler component */
function ICALProtocolHandler()
{
}
ICALProtocolHandler.prototype.scheme = "webcal";
ICALProtocolHandler.prototype.defaultPort = 8080;
ICALProtocolHandler.prototype.protocolFlags =
nsIProtocolHandler.URI_NORELATIVE |
nsIProtocolHandler.ALLOWS_PROXY;
ICALProtocolHandler.prototype.allowPort =
function (aPort, aScheme)
{
return false;
}
ICALProtocolHandler.prototype.newURI =
function (aSpec, aCharset, aBaseURI)
{
var url = Components.classes[STANDARDURL_CONTRACTID].
createInstance(nsIStandardURL);
url.init(nsIStandardURL.URLTYPE_STANDARD, 8080, aSpec, aCharset, aBaseURI);
return url.QueryInterface(nsIURI);
}
ICALProtocolHandler.prototype.newChannel =
function (aURI)
{
return new BogusChannel (aURI);
}
/* protocol handler factory object (ICALProtocolHandler) */
var ICALProtocolHandlerFactory = new Object();
ICALProtocolHandlerFactory.createInstance =
function (outer, iid) {
if (outer != null)
throw Components.results.NS_ERROR_NO_AGGREGATION;
if (!iid.equals(nsIProtocolHandler) && !iid.equals(nsISupports))
throw Components.results.NS_ERROR_INVALID_ARG;
return new ICALProtocolHandler();
}
/* bogus webcal channel used by the ICALProtocolHandler */
function BogusChannel (aURI)
{
this.URI = aURI;
this.originalURI = aURI;
}
BogusChannel.prototype.QueryInterface =
function (iid) {
if (iid.equals(nsIChannel) ||
iid.equals(nsIRequest) ||
iid.equals(nsISupports))
return this;
Components.returnCode = Components.results.NS_ERROR_NO_INTERFACE;
return null;
}
/* nsIChannel */
BogusChannel.prototype.loadAttributes = null;
BogusChannel.prototype.contentType = "text/calendar";
BogusChannel.prototype.contentLength = 0;
BogusChannel.prototype.owner = null;
BogusChannel.prototype.loadGroup = null;
BogusChannel.prototype.notificationCallbacks = null;
BogusChannel.prototype.securityInfo = null;
BogusChannel.prototype.open =
BogusChannel.prototype.asyncOpen =
function ()
{
throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
}
BogusChannel.prototype.asyncOpen =
function (observer, ctxt)
{
observer.onStartRequest (this, ctxt);
}
BogusChannel.prototype.asyncRead =
function (listener, ctxt)
{
return listener.onStartRequest (this, ctxt);
}
/* nsIRequest */
BogusChannel.prototype.isPending =
function ()
{
return true;
}
BogusChannel.prototype.status = Components.results.NS_OK;
BogusChannel.prototype.cancel =
function (aStatus)
{
this.status = aStatus;
}
BogusChannel.prototype.suspend =
BogusChannel.prototype.resume =
function ()
{
throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
}
var CalendarModule = new Object();
CalendarModule.registerSelf =
function (compMgr, fileSpec, location, type)
{
// dump("*** Registering -calendar handler.\n");
compMgr = compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
compMgr.registerFactoryLocation(CLINE_SERVICE_CID,
"Calendar CommandLine Service",
CLINE_SERVICE_CONTRACTID,
fileSpec,
location,
type);
var catman = Components.classes["@mozilla.org/categorymanager;1"]
.getService(nsICategoryManager);
catman.addCategoryEntry("command-line-argument-handlers",
"calendar command line handler",
CLINE_SERVICE_CONTRACTID, true, true);
catman.addCategoryEntry("command-line-handler", "m-calendar",
CLINE_SERVICE_CONTRACTID, true, true);
// dump("*** Registering text/calendar handler.\n");
compMgr.registerFactoryLocation(ICALCNT_HANDLER_CID,
"Webcal Content Handler",
ICALCNT_HANDLER_CONTRACTID,
fileSpec,
location,
type);
// dump("*** Registering webcal protocol handler.\n");
compMgr.registerFactoryLocation(ICALPROT_HANDLER_CID,
"Webcal protocol handler",
ICALPROT_HANDLER_CONTRACTID,
fileSpec,
location,
type);
}
CalendarModule.unregisterSelf =
function(compMgr, fileSpec, location)
{
compMgr = compMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
compMgr.unregisterFactoryLocation(CLINE_SERVICE_CID, fileSpec);
compMgr.unregisterFactoryLocation(ICALCNT_HANDLER_CID, fileSpec);
compMgr.unregisterFactoryLocation(ICALPROT_HANDLER_CID, fileSpec);
catman = Components.classes["@mozilla.org/categorymanager;1"]
.getService(nsICategoryManager);
catman.deleteCategoryEntry("command-line-argument-handlers",
"calendar command line handler", true);
catman.deleteCategoryEntry("command-line-handler",
"m-calendar", true);
}
CalendarModule.getClassObject =
function (compMgr, cid, iid) {
if (cid.equals(CLINE_SERVICE_CID))
return CLineFactory;
if (cid.equals(ICALCNT_HANDLER_CID))
return ICALContentHandlerFactory;
if (cid.equals(ICALPROT_HANDLER_CID))
return ICALProtocolHandlerFactory;
throw Components.results.NS_ERROR_NO_INTERFACE;
}
CalendarModule.canUnload =
function(compMgr)
{
return true;
}
/* entrypoint */
function NSGetModule(compMgr, fileSpec) {
return CalendarModule;
}