dom/canvas/WebGLContextLossHandler.h

   1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   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/. */
   5
   6 #ifndef WEBGL_CONTEXT_LOSS_HANDLER_H_
   7 #define WEBGL_CONTEXT_LOSS_HANDLER_H_
   8
   9 #include "mozilla/DebugOnly.h"
  10 #include "mozilla/RefPtr.h"
  11 #include "mozilla/WeakPtr.h"
  12 #include "nsCOMPtr.h"
  13
  14 class nsIThread;
  15 class nsITimer;
  16
  17 namespace mozilla {
  18 class WebGLContext;
  19
  20 class WebGLContextLossHandler
  21     : public RefCounted<WebGLContextLossHandler>
  22 {
  23     WeakPtr<WebGLContext> mWeakWebGL;
  24     nsCOMPtr<nsITimer> mTimer;
  25     bool mIsTimerRunning;
  26     bool mShouldRunTimerAgain;
  27     bool mIsDisabled;
  28     DebugOnly<nsIThread*> mThread;
  29
  30 public:
  31     MOZ_DECLARE_REFCOUNTED_TYPENAME(WebGLContextLossHandler)
  32
  33     WebGLContextLossHandler(WebGLContext* webgl);
  34     ~WebGLContextLossHandler();
  35
  36     void RunTimer();
  37     void DisableTimer();
  38
  39 protected:
  40     void StartTimer(unsigned long delayMS);
  41     static void StaticTimerCallback(nsITimer*, void* tempRefForTimer);
  42     void TimerCallback();
  43 };
  44
  45 } // namespace mozilla
  46
  47 #endif