Touch gestures for System Tray/ IME/ Stylus/ Notifications

ash/system/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_SYSTEM_PALETTE_PALETTE_TRAY_H_
 #define ASH_SYSTEM_PALETTE_PALETTE_TRAY_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
@@ skipping 26 matching lines @@
 class ASH_EXPORT PaletteTray : public TrayBackgroundView,
                                public SessionObserver,
                                public ShellObserver,
                                public PaletteToolManager::Delegate,
                                public ui::InputDeviceEventObserver,
                                public views::TrayBubbleView::Delegate {
  public:
   explicit PaletteTray(Shelf* shelf);
   ~PaletteTray() override;
 
-  // ActionableView:
-  bool PerformAction(const ui::Event& event) override;
-
   // SessionObserver:
   void OnSessionStateChanged(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 AnchorUpdated() override;
   void Initialize() override;
+  bool PerformAction(const ui::Event& event) override;
+  bool HasBubble() override;
+  void CloseBubble() override;
+  void ShowBubble() override;
+  views::TrayBubbleView* GetBubbleView() override;
+
+  // ui::EventHandler:
+  void OnGestureEvent(ui::GestureEvent* event) override;
 
   // PaletteToolManager::Delegate:
   void HidePalette() override;
   void HidePaletteImmediately() override;
   void RecordPaletteOptionsUsage(PaletteTrayOptions option) override;
   void RecordPaletteModeCancellation(PaletteModeCancelType type) override;
 
   // Opens up the palette if it is not already open. Returns true if the palette
   // was opened.
   bool ShowPalette();

[msw, 2017/07/12 05:04:51]

Remove this function, as it's now redundant with ShowBubble(). Callers that
checked the return value can call GetBubbleView() instead afterwards.

[minch1, 2017/07/13 19:10:35]

Done.

 
   // 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;
   void RegisterAccelerators(const std::vector<ui::Accelerator>& accelerators,
                             views::TrayBubbleView* tray_bubble_view) override;
   void UnregisterAllAccelerators(
       views::TrayBubbleView* tray_bubble_view) override;
   base::string16 GetAccessibleNameForBubble() override;
   bool ShouldEnableExtraKeyboardAccessibility() override;
   void HideBubble(const views::TrayBubbleView* bubble_view) override;
+  bool ProcessGestureEventForBubble(ui::GestureEvent* event) override;
 
   // PaletteToolManager::Delegate:
   void OnActiveToolChanged() override;
   aura::Window* 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();
@@ skipping 25 matching lines @@
   ScopedSessionObserver scoped_session_observer_;
 
   base::WeakPtrFactory<PaletteTray> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PaletteTray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_PALETTE_PALETTE_TRAY_H_