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152 строки
5.9 KiB
Plaintext
152 строки
5.9 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Contributor(s): Rick Potts <rpotts@netscape.com>
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* David Matiskella <davidm@netscape.com>
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* David Hyatt <hyatt@netscape.com>
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* Suresh Duddi <dp@netscape.com>
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* Scott Collins <scc@netscape.com>
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* Dan Matejka <danm@netscape.com>
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* Doug Turner <dougt@netscape.com>
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* Ray Whitmer <rayw@netscape.com>
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* Dan Mosedale <dmose@mozilla.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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#include "nsIEventQueue.idl"
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%{C++
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#include "prthread.h"
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#include "plevent.h"
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/* be761f00-a3b0-11d2-996c-0080c7cb1080 */
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#define NS_EVENTQUEUESERVICE_CID \
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{ 0xbe761f00, 0xa3b0, 0x11d2, \
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{0x99, 0x6c, 0x00, 0x80, 0xc7, 0xcb, 0x10, 0x80} }
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#define NS_EVENTQUEUESERVICE_CONTRACTID "@mozilla.org/event-queue-service;1"
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#define NS_EVENTQUEUESERVICE_CLASSNAME "Event Queue Service"
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#define NS_CURRENT_THREAD ((PRThread*)0)
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#define NS_CURRENT_EVENTQ ((nsIEventQueue*)0)
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#define NS_UI_THREAD ((PRThread*)1)
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#define NS_UI_THREAD_EVENTQ ((nsIEventQueue*)1)
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%}
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/* a forward decl */
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interface nsIThread;
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[scriptable, uuid(a6cf90dc-15b3-11d2-932e-00805f8add32)]
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interface nsIEventQueueService : nsISupports
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{
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/**
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* Creates and holds a native event queue for the current thread.
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* "Native" queues have an associated callback mechanism which is
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* automatically triggered when an event is posted. See plevent.c for
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* details.
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* @return NS_OK on success, or a host of failure indications
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*/
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void createThreadEventQueue();
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/**
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* Creates and hold a monitored event queue for the current thread.
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* "Monitored" queues have no callback processing mechanism.
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* @return NS_OK on success, or a host of failure indications
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*/
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void createMonitoredThreadEventQueue();
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/**
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* Somewhat misnamed, this method releases the service's hold on the event
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* queue(s) for this thread. Subsequent attempts to access this thread's
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* queue (GetThreadEventQueue, for example) may fail, though the queue itself
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* will be destroyed only after all references to it are released and the
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* queue itself is no longer actively processing events.
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* @return nonsense.
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*/
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void destroyThreadEventQueue();
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nsIEventQueue createFromIThread(in nsIThread aThread,
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in boolean aNative);
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[noscript] nsIEventQueue createFromPLEventQueue(in PLEventQueuePtr
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aPLEventQueue);
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// Add a new event queue for the current thread, making it the "current"
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// queue. Return that queue, addrefed.
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nsIEventQueue pushThreadEventQueue();
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// release and disable the queue
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void popThreadEventQueue(in nsIEventQueue aQueue);
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[noscript] nsIEventQueue getThreadEventQueue(in PRThreadPtr aThread);
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/**
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* @deprecated in favor of getSpecialEventQueue, since that's
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* scriptable and this isn't.
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*
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* Check for any "magic" event queue constants (NS_CURRENT_EVENTQ,
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* NS_UI_THREAD_EVENTQ) and return the real event queue that they
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* represent, AddRef()ed. Otherwise, return the event queue passed
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* in, AddRef()ed. This is not scriptable because the arguments in
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* question may be magic constants rather than real nsIEventQueues.
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*
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* @arg queueOrConstant either a real event queue or a magic
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* constant to be resolved
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*
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* @return a real event queue, AddRef()ed
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*/
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[noscript] nsIEventQueue resolveEventQueue(in nsIEventQueue queueOrConstant);
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/**
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* Returns the appropriate special event queue, AddRef()ed. Really
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* just a scriptable version of ResolveEventQueue.
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*
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* @arg aQueue Either CURRENT_THREAD_EVENT_QUEUE or
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* UI_THREAD_EVENT_QUEUE
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* @return The requested nsIEventQueue, AddRef()ed
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* @exception NS_ERROR_NULL_POINTER Zero pointer passed in for return value
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* @exception NS_ERROR_ILLEGAL_VALUE Bogus constant passed in aQueue
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* @exception NS_ERROR_FAILURE Error while calling
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* GetThreadEventQueue()
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*/
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nsIEventQueue getSpecialEventQueue(in long aQueue);
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const long CURRENT_THREAD_EVENT_QUEUE = 0;
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const long UI_THREAD_EVENT_QUEUE = 1;
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};
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