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Side by Side Diff: ui/compositor/layer_animator_collection.cc

Issue 291843012: compositor: Tick the UI animations from cc, instead of from timer callbacks. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: . Created 6 years, 7 months ago
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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 #include "ui/compositor/layer_animator_collection.h"
6
7 #include <set>
8
9 #include "base/time/time.h"
10 #include "ui/compositor/layer_animator.h"
11 #include "ui/gfx/frame_time.h"
12
13 namespace ui {
14
15 LayerAnimatorCollection::LayerAnimatorCollection(
16 LayerAnimatorCollectionDelegate* delegate)
17 : delegate_(delegate),
18 last_tick_time_(gfx::FrameTime::Now()) {
19 }
20
21 LayerAnimatorCollection::~LayerAnimatorCollection() {
22 }
23
24 void LayerAnimatorCollection::StartAnimator(
25 scoped_refptr<LayerAnimator> animator) {
26 if (!animators_.size())
27 last_tick_time_ = gfx::FrameTime::Now();
28 animators_.insert(animator);
29 if (delegate_)
30 delegate_->ScheduleAnimationForLayerCollection();
31 }
32
33 void LayerAnimatorCollection::StopAnimator(
34 scoped_refptr<LayerAnimator> animator) {
35 DCHECK_GT(animators_.count(animator), 0U);
36 animators_.erase(animator);
37 }
38
39 bool LayerAnimatorCollection::HasActiveAnimators() const {
40 return !animators_.empty();
41 }
42
43 void LayerAnimatorCollection::Progress(base::TimeTicks now) {
44 std::set<scoped_refptr<LayerAnimator> > list = animators_;
45 for (std::set<scoped_refptr<LayerAnimator> >::iterator iter = list.begin();
46 iter != list.end();
47 ++iter) {
48 // Make sure the animator is still valid.
49 if (animators_.count(*iter) > 0)
50 (*iter)->Step(now);
51 }
52 last_tick_time_ = now;
ajuma 2014/05/26 14:43:23 This should be moved to the start of this method,
sadrul 2014/05/28 21:41:22 Done.
53 }
54
55 } // namespace ui
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