The Tor Browser: layout/xul/nsRepeatService.h@925c144e1f1f

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 //

     7 // nsRepeatService

     8 //

     9 #ifndef nsRepeatService_h__

    10 #define nsRepeatService_h__

    12 #include "nsCOMPtr.h"

    13 #include "nsITimer.h"

    15 #define INITAL_REPEAT_DELAY 250

    17 #ifdef XP_MACOSX

    18 #define REPEAT_DELAY        25

    19 #else

    20 #define REPEAT_DELAY        50

    21 #endif

    23 class nsITimer;

    25 class nsRepeatService : public nsITimerCallback

    26 {

    27 public:

    29   typedef void (* Callback)(void* aData);

    31   NS_DECL_NSITIMERCALLBACK

    33   // Start dispatching timer events to the callback. There is no memory

    34   // management of aData here; it is the caller's responsibility to call

    35   // Stop() before aData's memory is released.

    36   void Start(Callback aCallback, void* aData,

    37              uint32_t aInitialDelay = INITAL_REPEAT_DELAY);

    38   // Stop dispatching timer events to the callback. If the repeat service

    39   // is not currently configured with the given callback and data, this

    40   // is just ignored.

    41   void Stop(Callback aCallback, void* aData);

    43   static nsRepeatService* GetInstance();

    44   static void Shutdown();

    46   NS_DECL_ISUPPORTS

    47   virtual ~nsRepeatService();

    49 protected:

    50   nsRepeatService();

    52 private:

    53   Callback           mCallback;

    54   void*              mCallbackData;

    55   nsCOMPtr<nsITimer> mRepeatTimer;

    56   static nsRepeatService* gInstance;

    58 }; // class nsRepeatService

    60 #endif

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