| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ui/views/animation/bounds_animator.h" |
| |
| #include <memory> |
| |
| #include "ui/gfx/animation/animation_container.h" |
| #include "ui/gfx/animation/slide_animation.h" |
| #include "ui/views/animation/bounds_animator_observer.h" |
| #include "ui/views/view.h" |
| |
| namespace views { |
| |
| BoundsAnimator::BoundsAnimator(View* parent) |
| : parent_(parent), container_(new gfx::AnimationContainer()) { |
| container_->set_observer(this); |
| } |
| |
| BoundsAnimator::~BoundsAnimator() { |
| // Reset the delegate so that we don't attempt to notify our observer from |
| // the destructor. |
| container_->set_observer(nullptr); |
| |
| // Delete all the animations, but don't remove any child views. We assume the |
| // view owns us and is going to be deleted anyway. |
| for (auto& entry : data_) |
| CleanupData(false, &entry.second); |
| } |
| |
| void BoundsAnimator::AnimateViewTo( |
| View* view, |
| const gfx::Rect& target, |
| std::unique_ptr<gfx::AnimationDelegate> delegate) { |
| DCHECK(view); |
| DCHECK_EQ(view->parent(), parent_); |
| |
| Data existing_data; |
| |
| if (IsAnimating(view)) { |
| // Don't immediately delete the animation, that might trigger a callback |
| // from the animation container. |
| existing_data = RemoveFromMaps(view); |
| } |
| |
| // NOTE: we don't check if the view is already at the target location. Doing |
| // so leads to odd cases where no animations may be present after invoking |
| // AnimateViewTo. AnimationProgressed does nothing when the bounds of the |
| // view don't change. |
| |
| Data& data = data_[view]; |
| data.start_bounds = view->bounds(); |
| data.target_bounds = target; |
| data.animation = CreateAnimation(); |
| data.delegate = std::move(delegate); |
| |
| animation_to_view_[data.animation.get()] = view; |
| |
| data.animation->Show(); |
| |
| CleanupData(true, &existing_data); |
| } |
| |
| void BoundsAnimator::SetTargetBounds(View* view, const gfx::Rect& target) { |
| const auto i = data_.find(view); |
| if (i == data_.end()) |
| AnimateViewTo(view, target); |
| else |
| i->second.target_bounds = target; |
| } |
| |
| gfx::Rect BoundsAnimator::GetTargetBounds(const View* view) const { |
| const auto i = data_.find(view); |
| return (i == data_.end()) ? view->bounds() : i->second.target_bounds; |
| } |
| |
| void BoundsAnimator::SetAnimationForView( |
| View* view, |
| std::unique_ptr<gfx::SlideAnimation> animation) { |
| DCHECK(animation); |
| |
| const auto i = data_.find(view); |
| if (i == data_.end()) |
| return; |
| |
| // We delay deleting the animation until the end so that we don't prematurely |
| // send out notification that we're done. |
| std::unique_ptr<gfx::Animation> old_animation = ResetAnimationForView(view); |
| |
| gfx::SlideAnimation* animation_ptr = animation.get(); |
| i->second.animation = std::move(animation); |
| animation_to_view_[animation_ptr] = view; |
| |
| animation_ptr->set_delegate(this); |
| animation_ptr->SetContainer(container_.get()); |
| animation_ptr->Show(); |
| } |
| |
| const gfx::SlideAnimation* BoundsAnimator::GetAnimationForView(View* view) { |
| const auto i = data_.find(view); |
| return (i == data_.end()) ? nullptr : i->second.animation.get(); |
| } |
| |
| void BoundsAnimator::SetAnimationDelegate( |
| View* view, |
| std::unique_ptr<AnimationDelegate> delegate) { |
| const auto i = data_.find(view); |
| DCHECK(i != data_.end()); |
| |
| i->second.delegate = std::move(delegate); |
| } |
| |
| void BoundsAnimator::StopAnimatingView(View* view) { |
| const auto i = data_.find(view); |
| if (i != data_.end()) |
| i->second.animation->Stop(); |
| } |
| |
| bool BoundsAnimator::IsAnimating(View* view) const { |
| return data_.find(view) != data_.end(); |
| } |
| |
| bool BoundsAnimator::IsAnimating() const { |
| return !data_.empty(); |
| } |
| |
| void BoundsAnimator::Cancel() { |
| if (data_.empty()) |
| return; |
| |
| while (!data_.empty()) |
| data_.begin()->second.animation->Stop(); |
| |
| // Invoke AnimationContainerProgressed to force a repaint and notify delegate. |
| AnimationContainerProgressed(container_.get()); |
| } |
| |
| void BoundsAnimator::SetAnimationDuration(int duration_ms) { |
| animation_duration_ms_ = duration_ms; |
| } |
| |
| void BoundsAnimator::AddObserver(BoundsAnimatorObserver* observer) { |
| observers_.AddObserver(observer); |
| } |
| |
| void BoundsAnimator::RemoveObserver(BoundsAnimatorObserver* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| std::unique_ptr<gfx::SlideAnimation> BoundsAnimator::CreateAnimation() { |
| auto animation = std::make_unique<gfx::SlideAnimation>(this); |
| animation->SetContainer(container_.get()); |
| animation->SetSlideDuration(animation_duration_ms_); |
| animation->SetTweenType(tween_type_); |
| return animation; |
| } |
| |
| BoundsAnimator::Data::Data() = default; |
| BoundsAnimator::Data::Data(Data&&) = default; |
| BoundsAnimator::Data& BoundsAnimator::Data::operator=(Data&&) = default; |
| BoundsAnimator::Data::~Data() = default; |
| |
| BoundsAnimator::Data BoundsAnimator::RemoveFromMaps(View* view) { |
| const auto i = data_.find(view); |
| DCHECK(i != data_.end()); |
| DCHECK(animation_to_view_.count(i->second.animation.get()) > 0); |
| |
| Data old_data = std::move(i->second); |
| data_.erase(view); |
| animation_to_view_.erase(old_data.animation.get()); |
| return old_data; |
| } |
| |
| void BoundsAnimator::CleanupData(bool send_cancel, Data* data) { |
| if (send_cancel && data->delegate) |
| data->delegate->AnimationCanceled(data->animation.get()); |
| |
| data->delegate.reset(); |
| |
| if (data->animation) { |
| data->animation->set_delegate(nullptr); |
| data->animation.reset(); |
| } |
| } |
| |
| std::unique_ptr<gfx::Animation> BoundsAnimator::ResetAnimationForView( |
| View* view) { |
| const auto i = data_.find(view); |
| if (i == data_.end()) |
| return nullptr; |
| |
| std::unique_ptr<gfx::Animation> old_animation = |
| std::move(i->second.animation); |
| animation_to_view_.erase(old_animation.get()); |
| // Reset the delegate so that we don't attempt any processing when the |
| // animation calls us back. |
| old_animation->set_delegate(nullptr); |
| return old_animation; |
| } |
| |
| void BoundsAnimator::AnimationEndedOrCanceled(const gfx::Animation* animation, |
| AnimationEndType type) { |
| DCHECK(animation_to_view_.find(animation) != animation_to_view_.end()); |
| |
| View* view = animation_to_view_[animation]; |
| DCHECK(view); |
| |
| // Save the data for later clean up. |
| Data data = RemoveFromMaps(view); |
| |
| if (data.delegate) { |
| if (type == ANIMATION_ENDED) { |
| data.delegate->AnimationEnded(animation); |
| } else { |
| DCHECK_EQ(ANIMATION_CANCELED, type); |
| data.delegate->AnimationCanceled(animation); |
| } |
| } |
| |
| CleanupData(false, &data); |
| } |
| |
| void BoundsAnimator::AnimationProgressed(const gfx::Animation* animation) { |
| DCHECK(animation_to_view_.find(animation) != animation_to_view_.end()); |
| |
| View* view = animation_to_view_[animation]; |
| DCHECK(view); |
| const Data& data = data_[view]; |
| gfx::Rect new_bounds = |
| animation->CurrentValueBetween(data.start_bounds, data.target_bounds); |
| if (new_bounds != view->bounds()) { |
| gfx::Rect total_bounds = gfx::UnionRects(new_bounds, view->bounds()); |
| |
| // Build up the region to repaint in repaint_bounds_. We'll do the repaint |
| // when all animations complete (in AnimationContainerProgressed). |
| repaint_bounds_.Union(total_bounds); |
| |
| view->SetBoundsRect(new_bounds); |
| } |
| |
| if (data.delegate) |
| data.delegate->AnimationProgressed(animation); |
| } |
| |
| void BoundsAnimator::AnimationEnded(const gfx::Animation* animation) { |
| AnimationEndedOrCanceled(animation, ANIMATION_ENDED); |
| } |
| |
| void BoundsAnimator::AnimationCanceled(const gfx::Animation* animation) { |
| AnimationEndedOrCanceled(animation, ANIMATION_CANCELED); |
| } |
| |
| void BoundsAnimator::AnimationContainerProgressed( |
| gfx::AnimationContainer* container) { |
| if (!repaint_bounds_.IsEmpty()) { |
| // Adjust for rtl. |
| repaint_bounds_.set_x(parent_->GetMirroredXWithWidthInView( |
| repaint_bounds_.x(), repaint_bounds_.width())); |
| parent_->SchedulePaintInRect(repaint_bounds_); |
| repaint_bounds_.SetRect(0, 0, 0, 0); |
| } |
| |
| for (BoundsAnimatorObserver& observer : observers_) |
| observer.OnBoundsAnimatorProgressed(this); |
| |
| if (!IsAnimating()) { |
| // Notify here rather than from AnimationXXX to avoid deleting the animation |
| // while the animation is calling us. |
| for (BoundsAnimatorObserver& observer : observers_) |
| observer.OnBoundsAnimatorDone(this); |
| } |
| } |
| |
| void BoundsAnimator::AnimationContainerEmpty( |
| gfx::AnimationContainer* container) {} |
| |
| } // namespace views |