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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ui/compositor/layer_animation_sequence.h" | 5 #include "ui/compositor/layer_animation_sequence.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 #include <iterator> | 8 #include <iterator> |
9 | 9 |
10 #include "base/debug/trace_event.h" | 10 #include "base/debug/trace_event.h" |
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24 last_element_(0) { | 24 last_element_(0) { |
25 AddElement(element); | 25 AddElement(element); |
26 } | 26 } |
27 | 27 |
28 LayerAnimationSequence::~LayerAnimationSequence() { | 28 LayerAnimationSequence::~LayerAnimationSequence() { |
29 FOR_EACH_OBSERVER(LayerAnimationObserver, | 29 FOR_EACH_OBSERVER(LayerAnimationObserver, |
30 observers_, | 30 observers_, |
31 DetachedFromSequence(this, true)); | 31 DetachedFromSequence(this, true)); |
32 } | 32 } |
33 | 33 |
34 void LayerAnimationSequence::Progress(base::TimeDelta elapsed, | 34 bool LayerAnimationSequence::Progress(base::TimeDelta elapsed, |
35 LayerAnimationDelegate* delegate) { | 35 LayerAnimationDelegate* delegate) { |
36 bool redraw_required = false; | 36 bool redraw_required = false; |
37 | 37 |
38 if (elements_.empty()) | 38 if (elements_.empty()) |
39 return; | 39 return redraw_required; |
40 | 40 |
41 if (is_cyclic_ && duration_ > base::TimeDelta()) { | 41 if (is_cyclic_ && duration_ > base::TimeDelta()) { |
42 // If delta = elapsed - last_start_ is huge, we can skip ahead by complete | 42 // If delta = elapsed - last_start_ is huge, we can skip ahead by complete |
43 // loops to save time. | 43 // loops to save time. |
44 base::TimeDelta delta = elapsed - last_start_; | 44 base::TimeDelta delta = elapsed - last_start_; |
45 int64 k = delta.ToInternalValue() / duration_.ToInternalValue() - 1; | 45 int64 k = delta.ToInternalValue() / duration_.ToInternalValue() - 1; |
46 | 46 |
47 last_start_ += base::TimeDelta::FromInternalValue( | 47 last_start_ += base::TimeDelta::FromInternalValue( |
48 k * duration_.ToInternalValue()); | 48 k * duration_.ToInternalValue()); |
49 } | 49 } |
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62 if (is_cyclic_ || last_element_ < elements_.size()) { | 62 if (is_cyclic_ || last_element_ < elements_.size()) { |
63 double t = 1.0; | 63 double t = 1.0; |
64 if (elements_[current_index]->duration() > base::TimeDelta()) { | 64 if (elements_[current_index]->duration() > base::TimeDelta()) { |
65 t = (elapsed - last_start_).InMillisecondsF() / | 65 t = (elapsed - last_start_).InMillisecondsF() / |
66 elements_[current_index]->duration().InMillisecondsF(); | 66 elements_[current_index]->duration().InMillisecondsF(); |
67 } | 67 } |
68 if (elements_[current_index]->Progress(t, delegate)) | 68 if (elements_[current_index]->Progress(t, delegate)) |
69 redraw_required = true; | 69 redraw_required = true; |
70 } | 70 } |
71 | 71 |
72 // Since the delegate may be deleted due to the notifications below, it is | |
73 // important that we schedule a draw before sending them. | |
74 if (redraw_required) | |
75 delegate->ScheduleDrawForAnimation(); | |
76 | |
77 if (!is_cyclic_ && elapsed == duration_) { | 72 if (!is_cyclic_ && elapsed == duration_) { |
78 last_element_ = 0; | 73 last_element_ = 0; |
79 last_start_ = base::TimeDelta::FromMilliseconds(0); | 74 last_start_ = base::TimeDelta::FromMilliseconds(0); |
80 NotifyEnded(); | 75 NotifyEnded(); |
81 } | 76 } |
| 77 |
| 78 return redraw_required; |
82 } | 79 } |
83 | 80 |
84 void LayerAnimationSequence::GetTargetValue( | 81 void LayerAnimationSequence::GetTargetValue( |
85 LayerAnimationElement::TargetValue* target) const { | 82 LayerAnimationElement::TargetValue* target) const { |
86 if (is_cyclic_) | 83 if (is_cyclic_) |
87 return; | 84 return; |
88 | 85 |
89 for (size_t i = last_element_; i < elements_.size(); ++i) | 86 for (size_t i = last_element_; i < elements_.size(); ++i) |
90 elements_[i]->GetTargetValue(target); | 87 elements_[i]->GetTargetValue(target); |
91 } | 88 } |
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162 OnLayerAnimationEnded(this)); | 159 OnLayerAnimationEnded(this)); |
163 } | 160 } |
164 | 161 |
165 void LayerAnimationSequence::NotifyAborted() { | 162 void LayerAnimationSequence::NotifyAborted() { |
166 FOR_EACH_OBSERVER(LayerAnimationObserver, | 163 FOR_EACH_OBSERVER(LayerAnimationObserver, |
167 observers_, | 164 observers_, |
168 OnLayerAnimationAborted(this)); | 165 OnLayerAnimationAborted(this)); |
169 } | 166 } |
170 | 167 |
171 } // namespace ui | 168 } // namespace ui |
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