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// Copyright 2013 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 "ash/shelf/app_list_button.h"
#include <vector>
#include "ash/ash_constants.h"
#include "ash/launcher/launcher_types.h"
#include "ash/shelf/shelf_button_host.h"
#include "grit/ash_resources.h"
#include "grit/ash_strings.h"
#include "ui/base/accessibility/accessible_view_state.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_animation_element.h"
#include "ui/compositor/layer_animation_sequence.h"
#include "ui/compositor/scoped_layer_animation_settings.h"
#include "ui/views/painter.h"
namespace ash {
namespace internal {
const int kAnimationDurationInMs = 600;
const float kAnimationOpacity[] = { 1.0f, 0.4f, 1.0f };
AppListButton::AppListButton(views::ButtonListener* listener,
ShelfButtonHost* host)
: views::ImageButton(listener),
host_(host) {
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
SetImage(
views::CustomButton::STATE_NORMAL,
rb.GetImageNamed(IDR_AURA_LAUNCHER_ICON_APPLIST).ToImageSkia());
SetImage(
views::CustomButton::STATE_HOVERED,
rb.GetImageNamed(IDR_AURA_LAUNCHER_ICON_APPLIST_HOT).
ToImageSkia());
SetImage(
views::CustomButton::STATE_PRESSED,
rb.GetImageNamed(IDR_AURA_LAUNCHER_ICON_APPLIST_PUSHED).
ToImageSkia());
SetAccessibleName(l10n_util::GetStringUTF16(IDS_AURA_APP_LIST_TITLE));
SetSize(gfx::Size(kLauncherPreferredSize, kLauncherPreferredSize));
SetImageAlignment(ImageButton::ALIGN_CENTER, ImageButton::ALIGN_TOP);
SetFocusPainter(views::Painter::CreateSolidFocusPainter(
kFocusBorderColor, gfx::Insets(1, 1, 1, 1)));
}
AppListButton::~AppListButton() {
}
void AppListButton::StartLoadingAnimation() {
layer()->GetAnimator()->StopAnimating();
scoped_ptr<ui::LayerAnimationSequence> opacity_sequence(
new ui::LayerAnimationSequence());
opacity_sequence->set_is_cyclic(true);
for (size_t i = 0; i < arraysize(kAnimationOpacity); ++i) {
opacity_sequence->AddElement(
ui::LayerAnimationElement::CreateOpacityElement(
kAnimationOpacity[i],
base::TimeDelta::FromMilliseconds(kAnimationDurationInMs)));
}
ui::LayerAnimationElement::AnimatableProperties opacity_properties;
opacity_properties.insert(ui::LayerAnimationElement::OPACITY);
opacity_sequence->AddElement(
ui::LayerAnimationElement::CreatePauseElement(
opacity_properties,
base::TimeDelta::FromMilliseconds(kAnimationDurationInMs)));
// LayerAnimator takes ownership of the sequences.
layer()->GetAnimator()->ScheduleAnimation(opacity_sequence.release());
}
void AppListButton::StopLoadingAnimation() {
layer()->GetAnimator()->StopAnimating();
ui::ScopedLayerAnimationSettings settings(layer()->GetAnimator());
settings.SetTransitionDuration(
base::TimeDelta::FromMilliseconds(kAnimationDurationInMs));
layer()->SetOpacity(1.0f);
layer()->SetTransform(gfx::Transform());
}
bool AppListButton::OnMousePressed(const ui::MouseEvent& event) {
ImageButton::OnMousePressed(event);
host_->PointerPressedOnButton(this, ShelfButtonHost::MOUSE, event);
return true;
}
void AppListButton::OnMouseReleased(const ui::MouseEvent& event) {
ImageButton::OnMouseReleased(event);
host_->PointerReleasedOnButton(this, ShelfButtonHost::MOUSE, false);
}
void AppListButton::OnMouseCaptureLost() {
host_->PointerReleasedOnButton(this, ShelfButtonHost::MOUSE, true);
ImageButton::OnMouseCaptureLost();
}
bool AppListButton::OnMouseDragged(const ui::MouseEvent& event) {
ImageButton::OnMouseDragged(event);
host_->PointerDraggedOnButton(this, ShelfButtonHost::MOUSE, event);
return true;
}
void AppListButton::OnMouseMoved(const ui::MouseEvent& event) {
ImageButton::OnMouseMoved(event);
host_->MouseMovedOverButton(this);
}
void AppListButton::OnMouseEntered(const ui::MouseEvent& event) {
ImageButton::OnMouseEntered(event);
host_->MouseEnteredButton(this);
}
void AppListButton::OnMouseExited(const ui::MouseEvent& event) {
ImageButton::OnMouseExited(event);
host_->MouseExitedButton(this);
}
void AppListButton::GetAccessibleState(ui::AccessibleViewState* state) {
state->role = ui::AccessibilityTypes::ROLE_PUSHBUTTON;
state->name = host_->GetAccessibleName(this);
}
} // namespace internal
} // namespace ash
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