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      1 // Copyright (c) 2013 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_SCOPED_ANIMATION_DURATION_SCALE_MODE_H_
      6 #define UI_COMPOSITOR_SCOPED_ANIMATION_DURATION_SCALE_MODE_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "ui/compositor/compositor_export.h"
     10 
     11 namespace ui {
     12 
     13 // Speed up or slow down animations for testing or debugging.
     14 class COMPOSITOR_EXPORT ScopedAnimationDurationScaleMode {
     15  public:
     16   enum DurationScaleMode {
     17     NORMAL_DURATION,
     18     FAST_DURATION,
     19     SLOW_DURATION,
     20     ZERO_DURATION
     21   };
     22 
     23   explicit ScopedAnimationDurationScaleMode(
     24       DurationScaleMode scoped_duration_scale_mode)
     25       : old_duration_scale_mode_(duration_scale_mode_) {
     26     duration_scale_mode_ = scoped_duration_scale_mode;
     27   }
     28 
     29   ~ScopedAnimationDurationScaleMode() {
     30     duration_scale_mode_ = old_duration_scale_mode_;
     31   }
     32 
     33   static DurationScaleMode duration_scale_mode() {
     34     return duration_scale_mode_;
     35   }
     36 
     37  private:
     38   DurationScaleMode old_duration_scale_mode_;
     39 
     40   static DurationScaleMode duration_scale_mode_;
     41 
     42   DISALLOW_COPY_AND_ASSIGN(ScopedAnimationDurationScaleMode);
     43 };
     44 
     45 }  // namespace ui
     46 
     47 #endif  // UI_COMPOSITOR_SCOPED_ANIMATION_DURATION_SCALE_MODE_H
     48