ui/compositor/scoped_animation_duration_scale_mode.h

   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     // A very short but guaranteed non-zero duration for individual tests that
  21     // need to assert things about animations after creating them.
  22     NON_ZERO_DURATION,
  23     // Animations complete immediately after being created. Used by most tests.
  24     ZERO_DURATION
  25   };
  26
  27   explicit ScopedAnimationDurationScaleMode(
  28       DurationScaleMode scoped_duration_scale_mode)
  29       : old_duration_scale_mode_(duration_scale_mode_) {
  30     duration_scale_mode_ = scoped_duration_scale_mode;
  31   }
  32
  33   ~ScopedAnimationDurationScaleMode() {
  34     duration_scale_mode_ = old_duration_scale_mode_;
  35   }
  36
  37   static DurationScaleMode duration_scale_mode() {
  38     return duration_scale_mode_;
  39   }
  40
  41  private:
  42   DurationScaleMode old_duration_scale_mode_;
  43
  44   static DurationScaleMode duration_scale_mode_;
  45
  46   DISALLOW_COPY_AND_ASSIGN(ScopedAnimationDurationScaleMode);
  47 };
  48
  49 }  // namespace ui
  50
  51 #endif  // UI_COMPOSITOR_SCOPED_ANIMATION_DURATION_SCALE_MODE_H