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61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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//
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// nsRepeatService
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//
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#ifndef nsRepeatService_h__
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#define nsRepeatService_h__
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#include "nsCOMPtr.h"
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#include "nsITimer.h"
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#define INITAL_REPEAT_DELAY 250
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#ifdef XP_MACOSX
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#define REPEAT_DELAY 25
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#else
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#define REPEAT_DELAY 50
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#endif
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class nsITimer;
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class nsRepeatService final : public nsITimerCallback
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{
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public:
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typedef void (* Callback)(void* aData);
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NS_DECL_NSITIMERCALLBACK
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// Start dispatching timer events to the callback. There is no memory
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// management of aData here; it is the caller's responsibility to call
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// Stop() before aData's memory is released.
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void Start(Callback aCallback, void* aData,
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uint32_t aInitialDelay = INITAL_REPEAT_DELAY);
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// Stop dispatching timer events to the callback. If the repeat service
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// is not currently configured with the given callback and data, this
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// is just ignored.
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void Stop(Callback aCallback, void* aData);
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static nsRepeatService* GetInstance();
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static void Shutdown();
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NS_DECL_ISUPPORTS
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protected:
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nsRepeatService();
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virtual ~nsRepeatService();
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private:
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Callback mCallback;
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void* mCallbackData;
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nsCOMPtr<nsITimer> mRepeatTimer;
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static nsRepeatService* gInstance;
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}; // class nsRepeatService
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#endif
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