1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_COMPOSITOR_TEST_DRAW_WAITER_H_ 6 #define UI_COMPOSITOR_TEST_DRAW_WAITER_H_ 7 8 #include "base/run_loop.h" 9 #include "ui/compositor/compositor_observer.h" 10 11 class Compositor; 12 13 namespace ui { 14 15 // This is only to be used for test. It allows execution of other tasks on 16 // the current message loop before the current task finishs (there is a 17 // potential for re-entrancy). 18 class DrawWaiterForTest : public CompositorObserver { 19 public: 20 // Waits for a draw to be issued by the compositor. If the test times out 21 // here, there may be a logic error in the compositor code causing it 22 // not to draw. 23 static void Wait(Compositor* compositor); 24 25 // Waits for a commit instead of a draw. 26 static void WaitForCommit(Compositor* compositor); 27 28 private: 29 DrawWaiterForTest(); 30 virtual ~DrawWaiterForTest(); 31 32 void WaitImpl(Compositor* compositor); 33 34 // CompositorObserver implementation. 35 virtual void OnCompositingDidCommit(Compositor* compositor) OVERRIDE; 36 virtual void OnCompositingStarted(Compositor* compositor, 37 base::TimeTicks start_time) OVERRIDE; 38 virtual void OnCompositingEnded(Compositor* compositor) OVERRIDE; 39 virtual void OnCompositingAborted(Compositor* compositor) OVERRIDE; 40 virtual void OnCompositingLockStateChanged(Compositor* compositor) OVERRIDE; 41 42 scoped_ptr<base::RunLoop> wait_run_loop_; 43 44 bool wait_for_commit_; 45 46 DISALLOW_COPY_AND_ASSIGN(DrawWaiterForTest); 47 }; 48 49 } // namespace ui 50 51 #endif // UI_COMPOSITOR_TEST_DRAW_WAITER_H_ 52
