content/browser/renderer_host/input/touch_selection_controller_client_aura.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_AURA_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_AURA_H_
   7
   8 #include "base/timer/timer.h"
   9 #include "content/common/content_export.h"
  10 #include "ui/touch_selection/touch_selection_controller.h"
  11 #include "ui/touch_selection/touch_selection_menu_runner.h"
  12
  13 namespace content {
  14 class RenderWidgetHostViewAura;
  15
  16 // An implementation of |TouchSelectionControllerClient| to be used in Aura's
  17 // implementation of touch selection for contents.
  18 class CONTENT_EXPORT TouchSelectionControllerClientAura
  19     : public ui::TouchSelectionControllerClient,
  20       public ui::TouchSelectionMenuClient {
  21  public:
  22   explicit TouchSelectionControllerClientAura(RenderWidgetHostViewAura* rwhva);
  23   ~TouchSelectionControllerClientAura() override;
  24
  25   // Called when |rwhva_|'s window is moved, to update the quick menu's
  26   // position.
  27   void OnWindowMoved();
  28
  29   // Called on first touch down/last touch up to hide/show the quick menu.
  30   void OnTouchDown();
  31   void OnTouchUp();
  32
  33   // Called when touch scroll starts/completes to hide/show touch handles and
  34   // the quick menu.
  35   void OnScrollStarted();
  36   void OnScrollCompleted();
  37
  38  private:
  39   friend class TestTouchSelectionControllerClientAura;
  40   class EnvPreTargetHandler;
  41
  42   bool IsQuickMenuAllowed() const;
  43   void ShowQuickMenu();
  44   void UpdateQuickMenu();
  45
  46   // ui::TouchSelectionControllerClient:
  47   bool SupportsAnimation() const override;
  48   void SetNeedsAnimate() override;
  49   void MoveCaret(const gfx::PointF& position) override;
  50   void MoveRangeSelectionExtent(const gfx::PointF& extent) override;
  51   void SelectBetweenCoordinates(const gfx::PointF& base,
  52                                 const gfx::PointF& extent) override;
  53   void OnSelectionEvent(ui::SelectionEventType event) override;
  54   scoped_ptr<ui::TouchHandleDrawable> CreateDrawable() override;
  55
  56   // ui::TouchSelectionMenuClient:
  57   bool IsCommandIdEnabled(int command_id) const override;
  58   void ExecuteCommand(int command_id, int event_flags) override;
  59   void RunContextMenu() override;
  60
  61   // Not owned, non-null for the lifetime of this object.
  62   RenderWidgetHostViewAura* rwhva_;
  63
  64   base::Timer quick_menu_timer_;
  65   bool touch_down_;
  66   bool scroll_in_progress_;
  67   bool handle_drag_in_progress_;
  68
  69   bool show_quick_menu_immediately_for_test_;
  70
  71   // A pre-target event handler for aura::Env which deactivates touch selection
  72   // on mouse and keyboard events.
  73   scoped_ptr<EnvPreTargetHandler> env_pre_target_handler_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(TouchSelectionControllerClientAura);
  76 };
  77
  78 }  // namespace content
  79
  80 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_TOUCH_SELECTION_CONTROLLER_CLIENT_AURA_H_