// 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 "ui/message_center/views/message_center_button_bar.h"

#include "grit/ui_resources.h"
#include "grit/ui_strings.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/models/simple_menu_model.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/text_constants.h"
#include "ui/message_center/message_center.h"
#include "ui/message_center/message_center_style.h"
#include "ui/message_center/notifier_settings.h"
#include "ui/message_center/views/message_center_view.h"
#include "ui/views/controls/button/button.h"
#include "ui/views/controls/button/image_button.h"
#include "ui/views/controls/button/label_button.h"
#include "ui/views/controls/button/menu_button.h"
#include "ui/views/controls/button/menu_button_listener.h"
#include "ui/views/controls/label.h"
#include "ui/views/controls/menu/menu_runner.h"
#include "ui/views/layout/box_layout.h"
#include "ui/views/layout/grid_layout.h"

namespace message_center {

namespace {
const int kButtonSize = 40;
const int kChevronMargin = 4;
const int kFooterLeftMargin = 17;
const int kFooterRightMargin = 14;
}  // namespace

// NotificationCenterButton ////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
class NotificationCenterButton : public views::ToggleImageButton {
 public:
  NotificationCenterButton(views::ButtonListener* listener,
                           int normal_id,
                           int hover_id,
                           int pressed_id,
                           int text_id);

 protected:
  // Overridden from views::View:
  virtual gfx::Size GetPreferredSize() OVERRIDE;
  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;

 private:
  DISALLOW_COPY_AND_ASSIGN(NotificationCenterButton);
};

NotificationCenterButton::NotificationCenterButton(
    views::ButtonListener* listener,
    int normal_id,
    int hover_id,
    int pressed_id,
    int text_id)
    : views::ToggleImageButton(listener) {
  ui::ResourceBundle& resource_bundle = ui::ResourceBundle::GetSharedInstance();
  SetImage(STATE_NORMAL, resource_bundle.GetImageSkiaNamed(normal_id));
  SetImage(STATE_HOVERED, resource_bundle.GetImageSkiaNamed(hover_id));
  SetImage(STATE_PRESSED, resource_bundle.GetImageSkiaNamed(pressed_id));
  SetImageAlignment(views::ImageButton::ALIGN_CENTER,
                    views::ImageButton::ALIGN_MIDDLE);
  SetTooltipText(resource_bundle.GetLocalizedString(text_id));
  set_focusable(true);
  set_request_focus_on_press(false);
}

gfx::Size NotificationCenterButton::GetPreferredSize() {
  return gfx::Size(kButtonSize, kButtonSize);
}

void NotificationCenterButton::OnPaintFocusBorder(gfx::Canvas* canvas) {
  if (HasFocus() && (focusable() || IsAccessibilityFocusable())) {
    canvas->DrawRect(gfx::Rect(2, 1, width() - 4, height() - 3),
                     kFocusBorderColor);
  }
}

// MessageCenterButtonBar /////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
MessageCenterButtonBar::MessageCenterButtonBar(
    MessageCenterView* message_center_view,
    MessageCenter* message_center,
    NotifierSettingsProvider* notifier_settings_provider,
    bool settings_initially_visible)
    : message_center_view_(message_center_view),
      message_center_(message_center),
      close_all_button_(NULL),
      quiet_mode_button_(NULL) {
  if (get_use_acceleration_when_possible())
    SetPaintToLayer(true);
  set_background(
      views::Background::CreateSolidBackground(kMessageCenterBackgroundColor));

  views::Label* notification_label = new views::Label(
      l10n_util::GetStringUTF16(IDS_MESSAGE_CENTER_FOOTER_TITLE));
  notification_label->SetAutoColorReadabilityEnabled(false);
  notification_label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
  notification_label->SetEnabledColor(kRegularTextColor);
  AddChildView(notification_label);

  views::View* button_container = new views::View;
  button_container->SetLayoutManager(
      new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 0));
  quiet_mode_button_ = new NotificationCenterButton(
      this,
      IDR_NOTIFICATION_DO_NOT_DISTURB,
      IDR_NOTIFICATION_DO_NOT_DISTURB_HOVER,
      IDR_NOTIFICATION_DO_NOT_DISTURB_PRESSED,
      IDS_MESSAGE_CENTER_QUIET_MODE_BUTTON_TOOLTIP);
  ui::ResourceBundle& resource_bundle = ui::ResourceBundle::GetSharedInstance();
  quiet_mode_button_->SetToggledImage(
      views::Button::STATE_NORMAL,
      resource_bundle.GetImageSkiaNamed(
          IDR_NOTIFICATION_DO_NOT_DISTURB_PRESSED));
  quiet_mode_button_->SetToggledImage(
      views::Button::STATE_HOVERED,
      resource_bundle.GetImageSkiaNamed(
          IDR_NOTIFICATION_DO_NOT_DISTURB_PRESSED));
  quiet_mode_button_->SetToggledImage(
      views::Button::STATE_PRESSED,
      resource_bundle.GetImageSkiaNamed(
          IDR_NOTIFICATION_DO_NOT_DISTURB_PRESSED));
  quiet_mode_button_->SetToggled(message_center->IsQuietMode());
  button_container->AddChildView(quiet_mode_button_);

  close_all_button_ =
      new NotificationCenterButton(this,
                                   IDR_NOTIFICATION_CLEAR_ALL,
                                   IDR_NOTIFICATION_CLEAR_ALL_HOVER,
                                   IDR_NOTIFICATION_CLEAR_ALL_PRESSED,
                                   IDS_MESSAGE_CENTER_CLEAR_ALL);
  button_container->AddChildView(close_all_button_);
  settings_button_ =
      new NotificationCenterButton(this,
                                   IDR_NOTIFICATION_SETTINGS,
                                   IDR_NOTIFICATION_SETTINGS_HOVER,
                                   IDR_NOTIFICATION_SETTINGS_PRESSED,
                                   IDS_MESSAGE_CENTER_SETTINGS_BUTTON_LABEL);
  button_container->AddChildView(settings_button_);

  gfx::ImageSkia* settings_image =
      ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
          IDR_NOTIFICATION_SETTINGS);
  int image_margin = std::max(0, (kButtonSize - settings_image->width()) / 2);
  views::GridLayout* layout = new views::GridLayout(this);
  SetLayoutManager(layout);
  layout->SetInsets(
      0, kFooterLeftMargin, 0, std::max(0, kFooterRightMargin - image_margin));
  views::ColumnSet* column = layout->AddColumnSet(0);
  column->AddColumn(views::GridLayout::FILL,
                    views::GridLayout::FILL,
                    1.0f,
                    views::GridLayout::USE_PREF,
                    0,
                    0);
  column->AddColumn(views::GridLayout::LEADING,
                    views::GridLayout::FILL,
                    0,
                    views::GridLayout::USE_PREF,
                    0,
                    0);
  layout->StartRow(0, 0);
  layout->AddView(notification_label);
  layout->AddView(button_container);
}

MessageCenterButtonBar::~MessageCenterButtonBar() {}

void MessageCenterButtonBar::SetAllButtonsEnabled(bool enabled) {
  if (close_all_button_)
    close_all_button_->SetEnabled(enabled);
  settings_button_->SetEnabled(enabled);
  quiet_mode_button_->SetEnabled(enabled);
}

void MessageCenterButtonBar::SetCloseAllButtonVisible(bool visible) {
  if (close_all_button_)
    close_all_button_->SetVisible(visible);
}

void MessageCenterButtonBar::ChildVisibilityChanged(views::View* child) {
  InvalidateLayout();
}

void MessageCenterButtonBar::ButtonPressed(views::Button* sender,
                                           const ui::Event& event) {
  if (sender == close_all_button_) {
    message_center_view()->ClearAllNotifications();
  } else if (sender == settings_button_) {
    MessageCenterView* center_view = message_center_view();
    center_view->SetSettingsVisible(!center_view->settings_visible());
  } else if (sender == quiet_mode_button_) {
    if (message_center()->IsQuietMode())
      message_center()->SetQuietMode(false);
    else
      message_center()->EnterQuietModeWithExpire(base::TimeDelta::FromDays(1));
    quiet_mode_button_->SetToggled(message_center()->IsQuietMode());
  } else {
    NOTREACHED();
  }
}

}  // namespace message_center