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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) {
// The size of the GtkFixed has changed. We want |child_| to match widths,
// but the height should not change.
gtk_widget_set_size_request(child, allocation->width, -1);
}
} // namespace
SlideAnimatorGtk::SlideAnimatorGtk(GtkWidget* child,
Direction direction,
int duration,
bool linear,
bool control_child_size,
Delegate* delegate)
: child_(child),
direction_(direction),
delegate_(delegate) {
widget_.Own(gtk_fixed_new());
gtk_fixed_put(GTK_FIXED(widget_.get()), child, 0, 0);
gtk_widget_set_size_request(widget_.get(), -1, 0);
if (control_child_size) {
// If the child requests it, we will manually set the size request for
// |child_| every time the GtkFixed changes sizes. This is mainly useful
// for bars, where we want the child to expand to fill all available space.
g_signal_connect(widget_.get(), "size-allocate",
G_CALLBACK(OnFixedSizeAllocate), child_);
}
// We connect to this signal to set an initial position for our child widget.
// The reason we connect to this signal rather than setting the initial
// position here is that the widget is currently unallocated and may not
// even have a size request.
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();
AnimationProgressed(animation_.get());
}
void SlideAnimatorGtk::Close() {
animation_->Hide();
}
void SlideAnimatorGtk::End() {
animation_->End();
}
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();
}
bool SlideAnimatorGtk::IsAnimating() {
return animation_->IsAnimating();
}
void SlideAnimatorGtk::AnimationProgressed(const Animation* animation) {
GtkRequisition req;
gtk_widget_size_request(child_, &req);
int showing_height = static_cast<int>(req.height *
animation_->GetCurrentValue());
if (direction_ == DOWN) {
gtk_fixed_move(GTK_FIXED(widget_.get()), child_, 0,
showing_height - req.height);
child_needs_move_ = false;
}
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;
}
}
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