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| 1 // Copyright (c) 2010 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 #include "app/animation.h" | |
| 6 | |
| 7 #include "app/animation_container.h" | |
| 8 #include "app/animation_delegate.h" | |
| 9 #include "app/tween.h" | |
| 10 #include "gfx/rect.h" | |
| 11 | |
| 12 #if defined(OS_WIN) | |
| 13 #include "base/win/windows_version.h" | |
| 14 #endif | |
| 15 | |
| 16 Animation::Animation(base::TimeDelta timer_interval) | |
| 17 : timer_interval_(timer_interval), | |
| 18 is_animating_(false), | |
| 19 delegate_(NULL) { | |
| 20 } | |
| 21 | |
| 22 Animation::~Animation() { | |
| 23 // Don't send out notification from the destructor. Chances are the delegate | |
| 24 // owns us and is being deleted as well. | |
| 25 if (is_animating_) | |
| 26 container_->Stop(this); | |
| 27 } | |
| 28 | |
| 29 void Animation::Start() { | |
| 30 if (is_animating_) | |
| 31 return; | |
| 32 | |
| 33 if (!container_.get()) | |
| 34 container_ = new AnimationContainer(); | |
| 35 | |
| 36 is_animating_ = true; | |
| 37 | |
| 38 container_->Start(this); | |
| 39 | |
| 40 AnimationStarted(); | |
| 41 } | |
| 42 | |
| 43 void Animation::Stop() { | |
| 44 if (!is_animating_) | |
| 45 return; | |
| 46 | |
| 47 is_animating_ = false; | |
| 48 | |
| 49 // Notify the container first as the delegate may delete us. | |
| 50 container_->Stop(this); | |
| 51 | |
| 52 AnimationStopped(); | |
| 53 | |
| 54 if (delegate_) { | |
| 55 if (ShouldSendCanceledFromStop()) | |
| 56 delegate_->AnimationCanceled(this); | |
| 57 else | |
| 58 delegate_->AnimationEnded(this); | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 double Animation::CurrentValueBetween(double start, double target) const { | |
| 63 return Tween::ValueBetween(GetCurrentValue(), start, target); | |
| 64 } | |
| 65 | |
| 66 int Animation::CurrentValueBetween(int start, int target) const { | |
| 67 return Tween::ValueBetween(GetCurrentValue(), start, target); | |
| 68 } | |
| 69 | |
| 70 gfx::Rect Animation::CurrentValueBetween(const gfx::Rect& start_bounds, | |
| 71 const gfx::Rect& target_bounds) const { | |
| 72 return Tween::ValueBetween(GetCurrentValue(), start_bounds, target_bounds); | |
| 73 } | |
| 74 | |
| 75 void Animation::SetContainer(AnimationContainer* container) { | |
| 76 if (container == container_.get()) | |
| 77 return; | |
| 78 | |
| 79 if (is_animating_) | |
| 80 container_->Stop(this); | |
| 81 | |
| 82 if (container) | |
| 83 container_ = container; | |
| 84 else | |
| 85 container_ = new AnimationContainer(); | |
| 86 | |
| 87 if (is_animating_) | |
| 88 container_->Start(this); | |
| 89 } | |
| 90 | |
| 91 // static | |
| 92 bool Animation::ShouldRenderRichAnimation() { | |
| 93 #if defined(OS_WIN) | |
| 94 if (base::win::GetVersion() >= base::win::VERSION_VISTA) { | |
| 95 BOOL result; | |
| 96 // Get "Turn off all unnecessary animations" value. | |
| 97 if (::SystemParametersInfo(SPI_GETCLIENTAREAANIMATION, 0, &result, 0)) { | |
| 98 // There seems to be a typo in the MSDN document (as of May 2009): | |
| 99 // http://msdn.microsoft.com/en-us/library/ms724947(VS.85).aspx | |
| 100 // The document states that the result is TRUE when animations are | |
| 101 // _disabled_, but in fact, it is TRUE when they are _enabled_. | |
| 102 return !!result; | |
| 103 } | |
| 104 } | |
| 105 return !::GetSystemMetrics(SM_REMOTESESSION); | |
| 106 #endif | |
| 107 return true; | |
| 108 } | |
| 109 | |
| 110 bool Animation::ShouldSendCanceledFromStop() { | |
| 111 return false; | |
| 112 } | |
| 113 | |
| 114 void Animation::SetStartTime(base::TimeTicks start_time) { | |
| 115 start_time_ = start_time; | |
| 116 } | |
| 117 | |
| 118 base::TimeDelta Animation::GetTimerInterval() const { | |
| 119 return timer_interval_; | |
| 120 } | |
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Chromium Code Reviews
Issue 6154001:
Move animation code to new ui/base/animation directory.... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/