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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/display/display_error_dialog.h"
#include "ash/screen_ash.h"
#include "ash/shell.h"
#include "grit/ash_strings.h"
#include "ui/aura/root_window.h"
#include "ui/aura/window.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/ui_base_types.h"
#include "ui/gfx/display.h"
#include "ui/gfx/screen.h"
#include "ui/views/border.h"
#include "ui/views/controls/label.h"
#include "ui/views/widget/widget.h"
namespace ash {
namespace internal {
namespace {
// The width of the area to show the error message.
const int kDialogMessageWidthPixel = 300;
// The margin width from the error message to the edge of the dialog.
const int kDialogMessageMarginWidthPixel = 5;
} // namespace
// static
DisplayErrorDialog* DisplayErrorDialog::ShowDialog(
chromeos::OutputState new_state) {
gfx::Screen* screen = Shell::GetScreen();
const gfx::Display& target_display =
(screen->GetNumDisplays() > 1) ?
ScreenAsh::GetSecondaryDisplay() : screen->GetPrimaryDisplay();
DisplayErrorDialog* dialog = new DisplayErrorDialog(new_state);
views::Widget* widget = new views::Widget;
views::Widget::InitParams params(views::Widget::InitParams::TYPE_WINDOW);
params.delegate = dialog;
// Makes |widget| belong to the target display. Size and location are
// fixed by CenterWindow() below.
params.bounds = target_display.bounds();
DisplayController* display_controller =
Shell::GetInstance()->display_controller();
params.context =
display_controller->GetRootWindowForDisplayId(target_display.id());
params.keep_on_top = true;
widget->Init(params);
widget->GetNativeView()->SetName("DisplayErrorDialog");
widget->CenterWindow(widget->GetRootView()->GetPreferredSize());
widget->Show();
return dialog;
}
void DisplayErrorDialog::UpdateMessageForState(
chromeos::OutputState new_state) {
int message_id = (new_state == chromeos::STATE_DUAL_MIRROR) ?
IDS_ASH_DISPLAY_FAILURE_ON_MIRRORING :
IDS_ASH_DISPLAY_FAILURE_ON_NON_MIRRORING;
label_->SetText(l10n_util::GetStringUTF16(message_id));
label_->SizeToFit(kDialogMessageWidthPixel);
Layout();
SchedulePaint();
}
DisplayErrorDialog::DisplayErrorDialog(chromeos::OutputState new_state) {
Shell::GetInstance()->display_controller()->AddObserver(this);
label_ = new views::Label();
AddChildView(label_);
label_->SetMultiLine(true);
label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
label_->set_border(views::Border::CreateEmptyBorder(
kDialogMessageMarginWidthPixel,
kDialogMessageMarginWidthPixel,
kDialogMessageMarginWidthPixel,
kDialogMessageMarginWidthPixel));
UpdateMessageForState(new_state);
}
DisplayErrorDialog::~DisplayErrorDialog() {
Shell::GetInstance()->display_controller()->RemoveObserver(this);
}
int DisplayErrorDialog::GetDialogButtons() const {
return ui::DIALOG_BUTTON_OK;
}
ui::ModalType DisplayErrorDialog::GetModalType() const {
return ui::MODAL_TYPE_NONE;
}
gfx::Size DisplayErrorDialog::GetPreferredSize() {
return label_->GetPreferredSize();
}
void DisplayErrorDialog::OnDisplayConfigurationChanging() {
GetWidget()->Close();
}
DisplayErrorObserver::DisplayErrorObserver()
: dialog_(NULL) {
}
DisplayErrorObserver::~DisplayErrorObserver() {
DCHECK(!dialog_);
}
void DisplayErrorObserver::OnDisplayModeChangeFailed(
chromeos::OutputState new_state) {
if (dialog_) {
DCHECK(dialog_->GetWidget());
dialog_->UpdateMessageForState(new_state);
dialog_->GetWidget()->StackAtTop();
dialog_->GetWidget()->Activate();
} else {
dialog_ = DisplayErrorDialog::ShowDialog(new_state);
dialog_->GetWidget()->AddObserver(this);
}
}
void DisplayErrorObserver::OnWidgetClosing(views::Widget* widget) {
DCHECK(dialog_);
DCHECK_EQ(dialog_->GetWidget(), widget);
widget->RemoveObserver(this);
dialog_ = NULL;
}
} // namespace internal
} // namespace ash
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