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1 // Copyright (c) 2011 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 "views/animation/bounds_animator.h" | |
6 | |
7 #include "base/memory/scoped_ptr.h" | |
8 #include "ui/base/animation/animation_container.h" | |
9 #include "ui/base/animation/slide_animation.h" | |
10 #include "views/view.h" | |
11 | |
12 // Duration in milliseconds for animations. | |
13 static const int kAnimationDuration = 200; | |
14 | |
15 using ui::Animation; | |
16 using ui::AnimationContainer; | |
17 using ui::SlideAnimation; | |
18 using ui::Tween; | |
19 | |
20 namespace views { | |
21 | |
22 BoundsAnimator::BoundsAnimator(View* parent) | |
23 : parent_(parent), | |
24 observer_(NULL), | |
25 container_(new AnimationContainer()) { | |
26 container_->set_observer(this); | |
27 } | |
28 | |
29 BoundsAnimator::~BoundsAnimator() { | |
30 // Reset the delegate so that we don't attempt to notify our observer from | |
31 // the destructor. | |
32 container_->set_observer(NULL); | |
33 | |
34 // Delete all the animations, but don't remove any child views. We assume the | |
35 // view owns us and is going to be deleted anyway. | |
36 for (ViewToDataMap::iterator i = data_.begin(); i != data_.end(); ++i) | |
37 CleanupData(false, &(i->second), i->first); | |
38 } | |
39 | |
40 void BoundsAnimator::AnimateViewTo(View* view, const gfx::Rect& target) { | |
41 DCHECK(view); | |
42 DCHECK_EQ(view->parent(), parent_); | |
43 | |
44 Data existing_data; | |
45 | |
46 if (IsAnimating(view)) { | |
47 // Don't immediatly delete the animation, that might trigger a callback from | |
48 // the animationcontainer. | |
49 existing_data = data_[view]; | |
50 | |
51 RemoveFromMaps(view); | |
52 } | |
53 | |
54 // NOTE: we don't check if the view is already at the target location. Doing | |
55 // so leads to odd cases where no animations may be present after invoking | |
56 // AnimateViewTo. AnimationProgressed does nothing when the bounds of the | |
57 // view don't change. | |
58 | |
59 Data& data = data_[view]; | |
60 data.start_bounds = view->bounds(); | |
61 data.target_bounds = target; | |
62 data.animation = CreateAnimation(); | |
63 | |
64 animation_to_view_[data.animation] = view; | |
65 | |
66 data.animation->Show(); | |
67 | |
68 CleanupData(true, &existing_data, NULL); | |
69 } | |
70 | |
71 void BoundsAnimator::SetTargetBounds(View* view, const gfx::Rect& target) { | |
72 if (!IsAnimating(view)) { | |
73 AnimateViewTo(view, target); | |
74 return; | |
75 } | |
76 | |
77 data_[view].target_bounds = target; | |
78 } | |
79 | |
80 void BoundsAnimator::SetAnimationForView(View* view, | |
81 SlideAnimation* animation) { | |
82 DCHECK(animation); | |
83 | |
84 scoped_ptr<SlideAnimation> animation_wrapper(animation); | |
85 | |
86 if (!IsAnimating(view)) | |
87 return; | |
88 | |
89 // We delay deleting the animation until the end so that we don't prematurely | |
90 // send out notification that we're done. | |
91 scoped_ptr<Animation> old_animation(ResetAnimationForView(view)); | |
92 | |
93 data_[view].animation = animation_wrapper.release(); | |
94 animation_to_view_[animation] = view; | |
95 | |
96 animation->set_delegate(this); | |
97 animation->SetContainer(container_.get()); | |
98 animation->Show(); | |
99 } | |
100 | |
101 const SlideAnimation* BoundsAnimator::GetAnimationForView(View* view) { | |
102 return !IsAnimating(view) ? NULL : data_[view].animation; | |
103 } | |
104 | |
105 void BoundsAnimator::SetAnimationDelegate(View* view, | |
106 AnimationDelegate* delegate, | |
107 bool delete_when_done) { | |
108 DCHECK(IsAnimating(view)); | |
109 | |
110 data_[view].delegate = delegate; | |
111 data_[view].delete_delegate_when_done = delete_when_done; | |
112 } | |
113 | |
114 void BoundsAnimator::StopAnimatingView(View* view) { | |
115 if (!IsAnimating(view)) | |
116 return; | |
117 | |
118 data_[view].animation->Stop(); | |
119 } | |
120 | |
121 bool BoundsAnimator::IsAnimating(View* view) const { | |
122 return data_.find(view) != data_.end(); | |
123 } | |
124 | |
125 bool BoundsAnimator::IsAnimating() const { | |
126 return !data_.empty(); | |
127 } | |
128 | |
129 void BoundsAnimator::Cancel() { | |
130 if (data_.empty()) | |
131 return; | |
132 | |
133 while (!data_.empty()) | |
134 data_.begin()->second.animation->Stop(); | |
135 | |
136 // Invoke AnimationContainerProgressed to force a repaint and notify delegate. | |
137 AnimationContainerProgressed(container_.get()); | |
138 } | |
139 | |
140 SlideAnimation* BoundsAnimator::CreateAnimation() { | |
141 SlideAnimation* animation = new SlideAnimation(this); | |
142 animation->SetContainer(container_.get()); | |
143 animation->SetSlideDuration(kAnimationDuration); | |
144 animation->SetTweenType(Tween::EASE_OUT); | |
145 return animation; | |
146 } | |
147 | |
148 void BoundsAnimator::RemoveFromMaps(View* view) { | |
149 DCHECK(data_.count(view) > 0); | |
150 DCHECK(animation_to_view_.count(data_[view].animation) > 0); | |
151 | |
152 animation_to_view_.erase(data_[view].animation); | |
153 data_.erase(view); | |
154 } | |
155 | |
156 void BoundsAnimator::CleanupData(bool send_cancel, Data* data, View* view) { | |
157 if (send_cancel && data->delegate) | |
158 data->delegate->AnimationCanceled(data->animation); | |
159 | |
160 if (data->delete_delegate_when_done) { | |
161 delete static_cast<OwnedAnimationDelegate*>(data->delegate); | |
162 data->delegate = NULL; | |
163 } | |
164 | |
165 if (data->animation) { | |
166 data->animation->set_delegate(NULL); | |
167 delete data->animation; | |
168 data->animation = NULL; | |
169 } | |
170 } | |
171 | |
172 Animation* BoundsAnimator::ResetAnimationForView(View* view) { | |
173 if (!IsAnimating(view)) | |
174 return NULL; | |
175 | |
176 Animation* old_animation = data_[view].animation; | |
177 animation_to_view_.erase(old_animation); | |
178 data_[view].animation = NULL; | |
179 // Reset the delegate so that we don't attempt any processing when the | |
180 // animation calls us back. | |
181 old_animation->set_delegate(NULL); | |
182 return old_animation; | |
183 } | |
184 | |
185 void BoundsAnimator::AnimationEndedOrCanceled(const Animation* animation, | |
186 AnimationEndType type) { | |
187 DCHECK(animation_to_view_.find(animation) != animation_to_view_.end()); | |
188 | |
189 View* view = animation_to_view_[animation]; | |
190 DCHECK(view); | |
191 | |
192 // Make a copy of the data as Remove empties out the maps. | |
193 Data data = data_[view]; | |
194 | |
195 RemoveFromMaps(view); | |
196 | |
197 if (data.delegate) { | |
198 if (type == ANIMATION_ENDED) { | |
199 data.delegate->AnimationEnded(animation); | |
200 } else { | |
201 DCHECK_EQ(ANIMATION_CANCELED, type); | |
202 data.delegate->AnimationCanceled(animation); | |
203 } | |
204 } | |
205 | |
206 CleanupData(false, &data, view); | |
207 } | |
208 | |
209 void BoundsAnimator::AnimationProgressed(const Animation* animation) { | |
210 DCHECK(animation_to_view_.find(animation) != animation_to_view_.end()); | |
211 | |
212 View* view = animation_to_view_[animation]; | |
213 DCHECK(view); | |
214 const Data& data = data_[view]; | |
215 gfx::Rect new_bounds = | |
216 animation->CurrentValueBetween(data.start_bounds, data.target_bounds); | |
217 if (new_bounds != view->bounds()) { | |
218 gfx::Rect total_bounds = new_bounds.Union(view->bounds()); | |
219 | |
220 // Build up the region to repaint in repaint_bounds_. We'll do the repaint | |
221 // when all animations complete (in AnimationContainerProgressed). | |
222 if (repaint_bounds_.IsEmpty()) | |
223 repaint_bounds_ = total_bounds; | |
224 else | |
225 repaint_bounds_ = repaint_bounds_.Union(total_bounds); | |
226 | |
227 view->SetBoundsRect(new_bounds); | |
228 } | |
229 | |
230 if (data.delegate) | |
231 data.delegate->AnimationProgressed(animation); | |
232 } | |
233 | |
234 void BoundsAnimator::AnimationEnded(const Animation* animation) { | |
235 AnimationEndedOrCanceled(animation, ANIMATION_ENDED); | |
236 } | |
237 | |
238 void BoundsAnimator::AnimationCanceled(const Animation* animation) { | |
239 AnimationEndedOrCanceled(animation, ANIMATION_CANCELED); | |
240 } | |
241 | |
242 void BoundsAnimator::AnimationContainerProgressed( | |
243 AnimationContainer* container) { | |
244 if (!repaint_bounds_.IsEmpty()) { | |
245 // Adjust for rtl. | |
246 repaint_bounds_.set_x(parent_->GetMirroredXWithWidthInView( | |
247 repaint_bounds_.x(), repaint_bounds_.width())); | |
248 parent_->SchedulePaintInRect(repaint_bounds_); | |
249 repaint_bounds_.SetRect(0, 0, 0, 0); | |
250 } | |
251 | |
252 if (observer_ && !IsAnimating()) { | |
253 // Notify here rather than from AnimationXXX to avoid deleting the animation | |
254 // while the animation is calling us. | |
255 observer_->OnBoundsAnimatorDone(this); | |
256 } | |
257 } | |
258 | |
259 void BoundsAnimator::AnimationContainerEmpty(AnimationContainer* container) { | |
260 } | |
261 | |
262 } // namespace views | |
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