chromeos: Move files in //ash/common to //ash, part 1

ash/common/system/chromeos/palette/palette_tray.h

-// Copyright 2016 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.
-
-#ifndef ASH_COMMON_SYSTEM_CHROMEOS_PALETTE_PALETTE_BUTTON_TRAY_H_
-#define ASH_COMMON_SYSTEM_CHROMEOS_PALETTE_PALETTE_BUTTON_TRAY_H_
-
-#include <map>
-#include <memory>
-
-#include "ash/ash_export.h"
-#include "ash/common/palette_delegate.h"
-#include "ash/common/session/session_state_observer.h"
-#include "ash/common/shell_observer.h"
-#include "ash/common/system/chromeos/palette/palette_tool_manager.h"
-#include "ash/common/system/tray/tray_background_view.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "ui/events/devices/input_device_event_observer.h"
-
-namespace gfx {
-class Point;
-}
-
-namespace views {
-class ImageView;
-class Widget;
-}
-
-namespace ash {
-
-class TrayBubbleWrapper;
-class PaletteToolManager;
-
-// The PaletteTray shows the palette in the bottom area of the screen. This
-// class also controls the lifetime for all of the tools available in the
-// palette.
-class ASH_EXPORT PaletteTray : public TrayBackgroundView,
-                               public SessionStateObserver,
-                               public ShellObserver,
-                               public PaletteToolManager::Delegate,
-                               public ui::InputDeviceEventObserver,
-                               public views::TrayBubbleView::Delegate {
- public:
-  explicit PaletteTray(WmShelf* wm_shelf);
-  ~PaletteTray() override;
-
-  // ActionableView:
-  bool PerformAction(const ui::Event& event) override;
-
-  // SessionStateObserver:
-  void SessionStateChanged(session_manager::SessionState state) override;
-
-  // ShellObserver:
-  void OnLockStateChanged(bool locked) override;
-
-  // TrayBackgroundView:
-  void ClickedOutsideBubble() override;
-  base::string16 GetAccessibleNameForTray() override;
-  void HideBubbleWithView(const views::TrayBubbleView* bubble_view) override;
-  void SetShelfAlignment(ShelfAlignment alignment) override;
-  void AnchorUpdated() override;
-  void Initialize() override;
-
-  // PaletteToolManager::Delegate:
-  void HidePalette() override;
-  void HidePaletteImmediately() override;
-  void RecordPaletteOptionsUsage(PaletteTrayOptions option) override;
-  void RecordPaletteModeCancellation(PaletteModeCancelType type) override;
-
-  // Returns true if the shelf should not autohide.
-  bool ShouldBlockShelfAutoHide() const;
-
-  // Opens up the palette if it is not already open. Returns true if the palette
-  // was opened.
-  bool ShowPalette();
-
-  // Returns true if the palette tray contains the given point. This is useful
-  // for determining if an event should be propagated through to the palette.
-  bool ContainsPointInScreen(const gfx::Point& point);
-
- private:
-  // ui::InputDeviceObserver:
-  void OnTouchscreenDeviceConfigurationChanged() override;
-  void OnStylusStateChanged(ui::StylusState stylus_state) override;
-
-  // views::TrayBubbleView::Delegate:
-  void BubbleViewDestroyed() override;
-  void OnMouseEnteredView() override;
-  void OnMouseExitedView() override;
-  base::string16 GetAccessibleNameForBubble() override;
-  void OnBeforeBubbleWidgetInit(
-      views::Widget* anchor_widget,
-      views::Widget* bubble_widget,
-      views::Widget::InitParams* params) const override;
-  void HideBubble(const views::TrayBubbleView* bubble_view) override;
-
-  // PaletteToolManager::Delegate:
-  void OnActiveToolChanged() override;
-  WmWindow* GetWindow() override;
-
-  // Updates the tray icon from the palette tool manager.
-  void UpdateTrayIcon();
-
-  // Sets the icon to visible if the palette can be used.
-  void UpdateIconVisibility();
-
-  // Called when the palette enabled pref has changed.
-  void OnPaletteEnabledPrefChanged(bool enabled);
-
-  std::unique_ptr<PaletteToolManager> palette_tool_manager_;
-  std::unique_ptr<TrayBubbleWrapper> bubble_;
-
-  // Manages the callback OnPaletteEnabledPrefChanged callback registered to
-  // the PaletteDelegate instance.
-  std::unique_ptr<PaletteDelegate::EnableListenerSubscription>
-      palette_enabled_subscription_;
-
-  // Weak pointer, will be parented by TrayContainer for its lifetime.
-  views::ImageView* icon_;
-
-  // The shelf auto-hide state is checked during the tray constructor, so we
-  // have to use a helper variable instead of just checking if we have a tray
-  // instance.
-  bool should_block_shelf_auto_hide_ = false;
-
-  // Cached palette enabled/disabled pref value.
-  bool is_palette_enabled_ = true;
-
-  // Used to indicate whether the palette bubble is automatically opened by a
-  // stylus eject event.
-  bool is_bubble_auto_opened_ = false;
-
-  // Number of actions in pen palette bubble.
-  int num_actions_in_bubble_ = 0;
-
-  base::WeakPtrFactory<PaletteTray> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(PaletteTray);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_SYSTEM_CHROMEOS_PALETTE_PALETTE_BUTTON_TRAY_H_