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- /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * ***** 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) 2002
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of 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 ***** */
-
- #include "nsISupports.idl"
-
- interface nsIObserver;
-
- %{C++
- /**
- * The signature of the timer callback function passed to initWithFuncCallback.
- * This is the function that will get called when the timer expires if the
- * timer is initialized via initWithFuncCallback.
- *
- * @param aTimer the timer which has expired
- * @param aClosure opaque parameter passed to initWithFuncCallback
- *
- * Implementers should return the following:
- *
- * @return NS_OK
- *
- */
- class nsITimer;
- typedef void (*nsTimerCallbackFunc) (nsITimer *aTimer, void *aClosure);
- %}
-
- native nsTimerCallbackFunc(nsTimerCallbackFunc);
-
- /**
- * The callback interface for timers.
- */
- interface nsITimer;
-
- [scriptable, uuid(a796816d-7d47-4348-9ab8-c7aeb3216a7d)]
- interface nsITimerCallback : nsISupports
- {
- /**
- * @param aTimer the timer which has expired
- */
- void notify(in nsITimer timer);
- };
-
-
- /**
- * nsITimer instances must be initialized by calling one of the "init" methods
- * documented below. You may also re-initialize an existing instance with new
- * delay to avoid the overhead of destroying and creating a timer. It is not
- * necessary to cancel the timer in that case.
- */
- [scriptable, uuid(436a83fa-b396-11d9-bcfa-00112478d626)]
- interface nsITimer : nsISupports
- {
- /* Timer types */
-
- /**
- * Type of a timer that fires once only.
- */
- const short TYPE_ONE_SHOT = 0;
-
- /**
- * After firing, a TYPE_REPEATING_SLACK timer is stopped and not restarted
- * until its callback completes. Specified timer period will be at least
- * the time between when processing for last firing the callback completes
- * and when the next firing occurs.
- *
- * This is the preferable repeating type for most situations.
- */
- const short TYPE_REPEATING_SLACK = 1;
-
- /**
- * An TYPE_REPEATING_PRECISE repeating timer aims to have constant period
- * between firings. The processing time for each timer callback should not
- * influence the timer period. However, if the processing for the last
- * timer firing could not be completed until just before the next firing
- * occurs, then you could have two timer notification routines being
- * executed in quick succession.
- */
- const short TYPE_REPEATING_PRECISE = 2;
-
- /**
- * Initialize a timer that will fire after the said delay.
- * A user must keep a reference to this timer till it is
- * is no longer needed or has been cancelled.
- *
- * @param aObserver the callback object that observes the
- * ``timer-callback'' topic with the subject being
- * the timer itself when the timer fires:
- *
- * observe(nsISupports aSubject, => nsITimer
- * string aTopic, => ``timer-callback''
- * wstring data => null
- *
- * @param aDelay delay in milliseconds for timer to fire
- * @param aType timer type per TYPE* consts defined above
- */
- void init(in nsIObserver aObserver, in unsigned long aDelay,
- in unsigned long aType);
-
-
- /**
- * Initialize a timer to fire after the given millisecond interval.
- * This version takes a function to call and a closure to pass to
- * that function.
- *
- * @param aFunc The function to invoke
- * @param aClosure An opaque pointer to pass to that function
- * @param aDelay The millisecond interval
- * @param aType Timer type per TYPE* consts defined above
- */
- [noscript] void initWithFuncCallback(in nsTimerCallbackFunc aCallback,
- in voidPtr aClosure,
- in unsigned long aDelay,
- in unsigned long aType);
-
- /**
- * Initialize a timer to fire after the given millisecond interval.
- * This version takes a function to call and a closure to pass to
- * that function.
- *
- * @param aFunc nsITimerCallback interface to call when timer expires
- * @param aDelay The millisecond interval
- * @param aType Timer type per TYPE* consts defined above
- */
- void initWithCallback(in nsITimerCallback aCallback,
- in unsigned long aDelay,
- in unsigned long aType);
-
- /**
- * Cancel the timer. This method works on all types, not just on repeating
- * timers -- you might want to cancel a TYPE_ONE_SHOT timer, and even reuse
- * it by re-initializing it (to avoid object destruction and creation costs
- * by conserving one timer instance).
- */
- void cancel();
-
- /**
- * The millisecond delay of the timeout
- */
- attribute unsigned long delay;
-
- /**
- * The timer type : one shot or repeating
- */
- attribute unsigned long type;
-
- /**
- * The opaque pointer pass to initWithFuncCallback.
- */
- [noscript] readonly attribute voidPtr closure;
-
- /**
- * The nsITimerCallback object passed to initWithCallback.
- */
- readonly attribute nsITimerCallback callback;
- };
-
- %{C++
- #define NS_TIMER_CONTRACTID "@mozilla.org/timer;1"
- #define NS_TIMER_CALLBACK_TOPIC "timer-callback"
- %}
-
-