blob: 2e4b0c1e48520b8796fd74cc8c50941dcd36a619 [file] [log] [blame]
// Copyright (c) 2011 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 "base/memory/scoped_ptr.h"
#include "ui/base/animation/animation_container.h"
#include "ui/base/animation/slide_animation.h"
#include "ui/views/view.h"
// Duration in milliseconds for animations.
static const int kAnimationDuration = 200;
using ui::Animation;
using ui::AnimationContainer;
using ui::SlideAnimation;
using ui::Tween;
namespace views {
BoundsAnimator::BoundsAnimator(View* parent)
: parent_(parent),
observer_(NULL),
container_(new 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(NULL);
// 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 (ViewToDataMap::iterator i = data_.begin(); i != data_.end(); ++i)
CleanupData(false, &(i->second), i->first);
}
void BoundsAnimator::AnimateViewTo(View* view, const gfx::Rect& target) {
DCHECK(view);
DCHECK_EQ(view->parent(), parent_);
Data existing_data;
if (IsAnimating(view)) {
// Don't immediatly delete the animation, that might trigger a callback from
// the animationcontainer.
existing_data = data_[view];
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();
animation_to_view_[data.animation] = view;
data.animation->Show();
CleanupData(true, &existing_data, NULL);
}
void BoundsAnimator::SetTargetBounds(View* view, const gfx::Rect& target) {
if (!IsAnimating(view)) {
AnimateViewTo(view, target);
return;
}
data_[view].target_bounds = target;
}
void BoundsAnimator::SetAnimationForView(View* view,
SlideAnimation* animation) {
DCHECK(animation);
scoped_ptr<SlideAnimation> animation_wrapper(animation);
if (!IsAnimating(view))
return;
// We delay deleting the animation until the end so that we don't prematurely
// send out notification that we're done.
scoped_ptr<Animation> old_animation(ResetAnimationForView(view));
data_[view].animation = animation_wrapper.release();
animation_to_view_[animation] = view;
animation->set_delegate(this);
animation->SetContainer(container_.get());
animation->Show();
}
const SlideAnimation* BoundsAnimator::GetAnimationForView(View* view) {
return !IsAnimating(view) ? NULL : data_[view].animation;
}
void BoundsAnimator::SetAnimationDelegate(View* view,
AnimationDelegate* delegate,
bool delete_when_done) {
DCHECK(IsAnimating(view));
data_[view].delegate = delegate;
data_[view].delete_delegate_when_done = delete_when_done;
}
void BoundsAnimator::StopAnimatingView(View* view) {
if (!IsAnimating(view))
return;
data_[view].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());
}
SlideAnimation* BoundsAnimator::CreateAnimation() {
SlideAnimation* animation = new SlideAnimation(this);
animation->SetContainer(container_.get());
animation->SetSlideDuration(kAnimationDuration);
animation->SetTweenType(Tween::EASE_OUT);
return animation;
}
void BoundsAnimator::RemoveFromMaps(View* view) {
DCHECK(data_.count(view) > 0);
DCHECK(animation_to_view_.count(data_[view].animation) > 0);
animation_to_view_.erase(data_[view].animation);
data_.erase(view);
}
void BoundsAnimator::CleanupData(bool send_cancel, Data* data, View* view) {
if (send_cancel && data->delegate)
data->delegate->AnimationCanceled(data->animation);
if (data->delete_delegate_when_done) {
delete static_cast<OwnedAnimationDelegate*>(data->delegate);
data->delegate = NULL;
}
if (data->animation) {
data->animation->set_delegate(NULL);
delete data->animation;
data->animation = NULL;
}
}
Animation* BoundsAnimator::ResetAnimationForView(View* view) {
if (!IsAnimating(view))
return NULL;
Animation* old_animation = data_[view].animation;
animation_to_view_.erase(old_animation);
data_[view].animation = NULL;
// Reset the delegate so that we don't attempt any processing when the
// animation calls us back.
old_animation->set_delegate(NULL);
return old_animation;
}
void BoundsAnimator::AnimationEndedOrCanceled(const Animation* animation,
AnimationEndType type) {
DCHECK(animation_to_view_.find(animation) != animation_to_view_.end());
View* view = animation_to_view_[animation];
DCHECK(view);
// Make a copy of the data as Remove empties out the maps.
Data data = data_[view];
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, view);
}
void BoundsAnimator::AnimationProgressed(const 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 = new_bounds.Union(view->bounds());
// Build up the region to repaint in repaint_bounds_. We'll do the repaint
// when all animations complete (in AnimationContainerProgressed).
if (repaint_bounds_.IsEmpty())
repaint_bounds_ = total_bounds;
else
repaint_bounds_ = repaint_bounds_.Union(total_bounds);
view->SetBoundsRect(new_bounds);
}
if (data.delegate)
data.delegate->AnimationProgressed(animation);
}
void BoundsAnimator::AnimationEnded(const Animation* animation) {
AnimationEndedOrCanceled(animation, ANIMATION_ENDED);
}
void BoundsAnimator::AnimationCanceled(const Animation* animation) {
AnimationEndedOrCanceled(animation, ANIMATION_CANCELED);
}
void BoundsAnimator::AnimationContainerProgressed(
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);
}
if (observer_ && !IsAnimating()) {
// Notify here rather than from AnimationXXX to avoid deleting the animation
// while the animation is calling us.
observer_->OnBoundsAnimatorDone(this);
}
}
void BoundsAnimator::AnimationContainerEmpty(AnimationContainer* container) {
}
} // namespace views