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// 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 "chrome/browser/ui/gtk/slide_animator_gtk.h"
#include "ui/base/animation/animation.h"
#include "ui/base/animation/slide_animation.h"
#include "ui/base/gtk/gtk_expanded_container.h"
namespace {
void OnChildSizeRequest(GtkWidget* expanded,
GtkWidget* child,
GtkRequisition* requisition,
gpointer control_child_size) {
// If |control_child_size| is true, then we want |child_| to match the width
// of the |widget_|, but the height of |child_| should not change.
if (!GPOINTER_TO_INT(control_child_size)) {
requisition->width = -1;
}
requisition->height = -1;
}
} // namespace
bool SlideAnimatorGtk::animations_enabled_ = true;
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_expanded_container_new());
gtk_container_add(GTK_CONTAINER(widget_.get()), child);
gtk_widget_set_size_request(widget_.get(), -1, 0);
// If the child requests it, we will manually set the size request for
// |child_| every time the |widget_| 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(), "child-size-request",
G_CALLBACK(OnChildSizeRequest),
GINT_TO_POINTER(control_child_size));
// 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 ui::SlideAnimation(this));
// Default tween type is EASE_OUT.
if (linear)
animation_->SetTweenType(ui::Tween::LINEAR);
if (duration != 0)
animation_->SetSlideDuration(duration);
}
SlideAnimatorGtk::~SlideAnimatorGtk() {
widget_.Destroy();
}
void SlideAnimatorGtk::Open() {
if (!animations_enabled_)
return OpenWithoutAnimation();
gtk_widget_show(widget_.get());
animation_->Show();
}
void SlideAnimatorGtk::OpenWithoutAnimation() {
gtk_widget_show(widget_.get());
animation_->Reset(1.0);
animation_->Show();
AnimationProgressed(animation_.get());
}
void SlideAnimatorGtk::Close() {
if (!animations_enabled_)
return CloseWithoutAnimation();
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_->is_animating();
}
void SlideAnimatorGtk::AnimationProgressed(const ui::Animation* animation) {
GtkRequisition req;
gtk_widget_size_request(child_, &req);
int showing_height = static_cast<int>(req.height *
animation_->GetCurrentValue());
if (direction_ == DOWN) {
if (widget_.get()->parent) {
gtk_expanded_container_move(GTK_EXPANDED_CONTAINER(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 ui::Animation* animation) {
if (!animation_->IsShowing()) {
gtk_widget_hide(widget_.get());
if (delegate_)
delegate_->Closed();
}
}
// static
void SlideAnimatorGtk::SetAnimationsForTesting(bool enable) {
animations_enabled_ = enable;
}
// static
void SlideAnimatorGtk::OnChildSizeAllocate(GtkWidget* child,
GtkAllocation* allocation,
SlideAnimatorGtk* slider) {
if (slider->child_needs_move_) {
gtk_expanded_container_move(GTK_EXPANDED_CONTAINER(slider->widget()),
child, 0, -allocation->height);
slider->child_needs_move_ = false;
}
}
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