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// Copyright (c) 2012 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/launcher/launcher.h"
#include "ash/focus_cycler.h"
#include "ash/launcher/launcher_delegate.h"
#include "ash/launcher/launcher_model.h"
#include "ash/launcher/launcher_view.h"
#include "ash/shell.h"
#include "ash/shell_delegate.h"
#include "ash/shell_window_ids.h"
#include "ui/aura/window.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/compositor/layer.h"
#include "ui/gfx/image/image.h"
#include "ui/views/accessible_pane_view.h"
#include "ui/views/painter.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_delegate.h"
namespace ash {
// The contents view of the Widget. This view contains LauncherView and
// sizes it to the width of the widget minus the size of the status area.
class Launcher::DelegateView : public views::WidgetDelegate,
public views::AccessiblePaneView {
public:
explicit DelegateView();
virtual ~DelegateView();
void SetStatusWidth(int width);
int status_width() const { return status_width_; }
void set_focus_cycler(const internal::FocusCycler* focus_cycler) {
focus_cycler_ = focus_cycler;
}
// views::View overrides
virtual gfx::Size GetPreferredSize() OVERRIDE;
virtual void Layout() OVERRIDE;
virtual views::Widget* GetWidget() OVERRIDE {
return View::GetWidget();
}
virtual const views::Widget* GetWidget() const OVERRIDE {
return View::GetWidget();
}
// views::WidgetDelegateView overrides:
virtual bool CanActivate() const OVERRIDE {
// We don't want mouse clicks to activate us, but we need to allow
// activation when the user is using the keyboard (FocusCycler).
return focus_cycler_ && focus_cycler_->widget_activating() == GetWidget();
}
private:
int status_width_;
const internal::FocusCycler* focus_cycler_;
DISALLOW_COPY_AND_ASSIGN(DelegateView);
};
Launcher::DelegateView::DelegateView()
: status_width_(0),
focus_cycler_(NULL) {
}
Launcher::DelegateView::~DelegateView() {
}
void Launcher::SetFocusCycler(const internal::FocusCycler* focus_cycler) {
delegate_view_->set_focus_cycler(focus_cycler);
}
void Launcher::DelegateView::SetStatusWidth(int width) {
if (status_width_ == width)
return;
status_width_ = width;
Layout();
}
gfx::Size Launcher::DelegateView::GetPreferredSize() {
return child_count() > 0 ? child_at(0)->GetPreferredSize() : gfx::Size();
}
void Launcher::DelegateView::Layout() {
if (child_count() == 0)
return;
child_at(0)->SetBounds(0, 0, std::max(0, width() - status_width_), height());
}
Launcher::Launcher(aura::Window* window_container)
: widget_(NULL),
window_container_(window_container),
delegate_view_(NULL),
launcher_view_(NULL) {
model_.reset(new LauncherModel);
if (Shell::GetInstance()->delegate()) {
delegate_.reset(
Shell::GetInstance()->delegate()->CreateLauncherDelegate(model_.get()));
}
widget_.reset(new views::Widget);
views::Widget::InitParams params(
views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
params.create_texture_for_layer = true;
params.transparent = true;
params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
params.parent = Shell::GetInstance()->GetContainer(
ash::internal::kShellWindowId_LauncherContainer);
launcher_view_ = new internal::LauncherView(model_.get(), delegate_.get());
launcher_view_->Init();
delegate_view_ = new DelegateView;
delegate_view_->AddChildView(launcher_view_);
params.delegate = delegate_view_;
widget_->Init(params);
widget_->GetNativeWindow()->SetName("LauncherWindow");
gfx::Size pref =
static_cast<views::View*>(launcher_view_)->GetPreferredSize();
widget_->SetBounds(gfx::Rect(0, 0, pref.width(), pref.height()));
// The launcher should not take focus when it is initially shown.
widget_->set_focus_on_creation(false);
widget_->SetContentsView(delegate_view_);
widget_->Show();
widget_->GetNativeView()->SetName("LauncherView");
}
Launcher::~Launcher() {
}
void Launcher::SetStatusWidth(int width) {
delegate_view_->SetStatusWidth(width);
}
int Launcher::GetStatusWidth() {
return delegate_view_->status_width();
}
gfx::Rect Launcher::GetScreenBoundsOfItemIconForWindow(aura::Window* window) {
if (!delegate_.get())
return gfx::Rect();
LauncherID id = delegate_->GetIDByWindow(window);
gfx::Rect bounds(launcher_view_->GetIdealBoundsOfItemIcon(id));
if (bounds.IsEmpty())
return bounds;
gfx::Point screen_origin;
views::View::ConvertPointToScreen(launcher_view_, &screen_origin);
return gfx::Rect(screen_origin.x() + bounds.x(),
screen_origin.y() + bounds.y(),
bounds.width(),
bounds.height());
}
internal::LauncherView* Launcher::GetLauncherViewForTest() {
return static_cast<internal::LauncherView*>(
widget_->GetContentsView()->child_at(0));
}
} // namespace ash
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