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// Copyright (c) 2009 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 "chrome/browser/gtk/slide_animator_gtk.h"
#include "app/animation.h"
#include "app/slide_animation.h"
#include "base/logging.h"
namespace {
void OnFixedSizeAllocate(GtkWidget* fixed,
GtkAllocation* allocation,
GtkWidget* child) {
if (allocation->width != child->allocation.width) {
// The size of the GtkFixed has changed. We want |child_| to match widths,
// but the height should not change.
GtkAllocation new_allocation = child->allocation;
new_allocation.width = allocation->width;
gtk_widget_size_allocate(child, &new_allocation);
}
}
} // namespace
SlideAnimatorGtk::SlideAnimatorGtk(GtkWidget* child,
Direction direction,
int duration,
bool linear,
Delegate* delegate)
: child_(child),
direction_(direction),
delegate_(delegate),
fixed_needs_resize_(false) {
widget_.Own(gtk_fixed_new());
gtk_fixed_put(GTK_FIXED(widget_.get()), child, 0, 0);
gtk_widget_set_size_request(widget_.get(), -1, 0);
// We have to manually set the size request for |child_| every time the
// GtkFixed changes sizes.
g_signal_connect(widget_.get(), "size-allocate",
G_CALLBACK(OnFixedSizeAllocate), child_);
// The size of the GtkFixed widget is set during animation. When we open
// without showing the animation, we have to call AnimationProgressed
// ourselves to properly set the size of the GtkFixed. We can't do this until
// after the child has been allocated, hence we connect to "size-allocate" on
// the child.
g_signal_connect(child, "size-allocate",
G_CALLBACK(OnChildSizeAllocate), this);
child_needs_move_ = (direction == DOWN);
animation_.reset(new SlideAnimation(this));
// Default tween type is EASE_OUT.
if (linear)
animation_->SetTweenType(SlideAnimation::NONE);
if (duration != 0)
animation_->SetSlideDuration(duration);
}
SlideAnimatorGtk::~SlideAnimatorGtk() {
widget_.Destroy();
}
void SlideAnimatorGtk::Open() {
gtk_widget_show(widget_.get());
animation_->Show();
}
void SlideAnimatorGtk::OpenWithoutAnimation() {
animation_->Reset(1.0);
Open();
// This checks to see if |child_| has been allocated yet. If it has been
// allocated already, we can go ahead and reposition everything by calling
// AnimationProgressed(). If it has not been allocated, we have to delay
// this call until it has been allocated (see OnChildSizeAllocate).
if (child_->allocation.x != -1) {
AnimationProgressed(animation_.get());
} else {
fixed_needs_resize_ = true;
}
}
void SlideAnimatorGtk::Close() {
animation_->Hide();
}
void SlideAnimatorGtk::CloseWithoutAnimation() {
animation_->Reset(0.0);
animation_->Hide();
AnimationProgressed(animation_.get());
gtk_widget_hide(widget_.get());
}
bool SlideAnimatorGtk::IsShowing() {
return animation_->IsShowing();
}
bool SlideAnimatorGtk::IsClosing() {
return animation_->IsClosing();
}
void SlideAnimatorGtk::AnimationProgressed(const Animation* animation) {
int showing_height = child_->allocation.height *
animation_->GetCurrentValue();
if (direction_ == DOWN) {
gtk_fixed_move(GTK_FIXED(widget_.get()), child_, 0,
showing_height - child_->allocation.height);
}
gtk_widget_set_size_request(widget_.get(), -1, showing_height);
}
void SlideAnimatorGtk::AnimationEnded(const Animation* animation) {
if (!animation_->IsShowing()) {
gtk_widget_hide(widget_.get());
if (delegate_)
delegate_->Closed();
}
}
// static
void SlideAnimatorGtk::OnChildSizeAllocate(GtkWidget* child,
GtkAllocation* allocation,
SlideAnimatorGtk* slider) {
if (slider->child_needs_move_) {
gtk_fixed_move(GTK_FIXED(slider->widget()), child, 0, -allocation->height);
slider->child_needs_move_ = false;
}
if (slider->fixed_needs_resize_) {
slider->AnimationProgressed(slider->animation_.get());
slider->fixed_needs_resize_ = false;
}
}
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