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shutdown_dialog.cc
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shutdown_dialog.cc
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// Copyright 2014 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 "athena/system/shutdown_dialog.h"
#include "athena/screen/public/screen_manager.h"
#include "athena/strings/grit/athena_strings.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "chromeos/dbus/power_manager_client.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/gfx/font_list.h"
#include "ui/views/background.h"
#include "ui/views/border.h"
#include "ui/views/controls/label.h"
#include "ui/views/layout/box_layout.h"
#include "ui/views/widget/widget.h"
#include "ui/views/window/dialog_delegate.h"
namespace athena {
namespace {
// The amount of time that the power button must be held to shut down the
// device after shutdown dialog is shown.
const int kShutdownTimeoutMs = 4000;
class ModalWidgetDelegate : public views::WidgetDelegate {
public:
explicit ModalWidgetDelegate(views::View* contents_view)
: contents_view_(contents_view) {}
~ModalWidgetDelegate() override {}
// Overridden from WidgetDelegate:
void DeleteDelegate() override { delete this; }
views::Widget* GetWidget() override { return contents_view_->GetWidget(); }
const views::Widget* GetWidget() const override {
return contents_view_->GetWidget();
}
views::View* GetContentsView() override { return contents_view_; }
ui::ModalType GetModalType() const override { return ui::MODAL_TYPE_SYSTEM; }
private:
views::View* contents_view_;
DISALLOW_COPY_AND_ASSIGN(ModalWidgetDelegate);
};
} // namespace
ShutdownDialog::ShutdownDialog() : state_(STATE_OTHER) {
InputManager::Get()->AddPowerButtonObserver(this);
}
ShutdownDialog::~ShutdownDialog() {
InputManager::Get()->RemovePowerButtonObserver(this);
}
void ShutdownDialog::ShowShutdownWarningDialog() {
state_ = STATE_SHUTDOWN_WARNING_VISIBLE;
views::Label* label =
new views::Label(l10n_util::GetStringUTF16(IDS_ATHENA_SHUTDOWN_WARNING));
label->SetBackgroundColor(SK_ColorWHITE);
label->SetFontList(gfx::FontList().DeriveWithStyle(gfx::Font::BOLD));
views::View* container = new views::View;
container->AddChildView(label);
const int kBorderSpacing = 50;
container->SetLayoutManager(new views::BoxLayout(
views::BoxLayout::kHorizontal, kBorderSpacing, kBorderSpacing, 0));
container->set_background(
views::Background::CreateSolidBackground(SK_ColorWHITE));
container->SetBorder(views::Border::CreateSolidBorder(1, SK_ColorBLACK));
views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
params.delegate = new ModalWidgetDelegate(container);
params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
params.context = ScreenManager::Get()->GetContext();
// Use top most modal container.
params.keep_on_top = true;
shutdown_warning_message_.reset(new views::Widget);
shutdown_warning_message_->Init(params);
shutdown_warning_message_->Show();
shutdown_warning_message_->CenterWindow(container->GetPreferredSize());
timer_.Start(FROM_HERE,
base::TimeDelta::FromMilliseconds(kShutdownTimeoutMs),
this,
&ShutdownDialog::Shutdown);
}
void ShutdownDialog::Shutdown() {
state_ = STATE_SHUTDOWN_REQUESTED;
chromeos::DBusThreadManager::Get()
->GetPowerManagerClient()
->RequestShutdown();
}
void ShutdownDialog::OnPowerButtonStateChanged(
PowerButtonObserver::State state) {
if (state_ == STATE_SHUTDOWN_REQUESTED)
return;
switch (state) {
case PRESSED:
state_ = STATE_SUSPEND_ON_RELEASE;
break;
case LONG_PRESSED:
ShowShutdownWarningDialog();
break;
case RELEASED:
if (state_ == STATE_SUSPEND_ON_RELEASE) {
chromeos::DBusThreadManager::Get()
->GetPowerManagerClient()
->RequestSuspend();
}
state_ = STATE_OTHER;
timer_.Stop();
shutdown_warning_message_.reset();
break;
}
}
} // namespace athena