It is time.

ui/views/touchui/touch_selection_controller_impl.h

-// Copyright (c) 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.
-
-#ifndef UI_UI_VIEWS_TOUCHUI_TOUCH_SELECTION_CONTROLLER_IMPL_H_
-#define UI_UI_VIEWS_TOUCHUI_TOUCH_SELECTION_CONTROLLER_IMPL_H_
-
-#include "base/timer/timer.h"
-#include "ui/aura/window_observer.h"
-#include "ui/base/touch/touch_editing_controller.h"
-#include "ui/gfx/point.h"
-#include "ui/views/touchui/touch_editing_menu.h"
-#include "ui/views/view.h"
-#include "ui/views/views_export.h"
-
-namespace views {
-
-namespace test {
-class WidgetTestInteractive;
-}
-
-// Touch specific implementation of TouchSelectionController. Responsible for
-// displaying selection handles and menu elements relevant in a touch interface.
-class VIEWS_EXPORT TouchSelectionControllerImpl
-    : public ui::TouchSelectionController,
-      public TouchEditingMenuController,
-      public aura::WindowObserver,
-      public WidgetObserver,
-      public ui::EventHandler {
- public:
-  class EditingHandleView;
-
-  // Use TextSelectionController::create().
-  explicit TouchSelectionControllerImpl(
-      ui::TouchEditable* client_view);
-
-  virtual ~TouchSelectionControllerImpl();
-
-  // TextSelectionController.
-  virtual void SelectionChanged() override;
-  virtual bool IsHandleDragInProgress() override;
-  virtual void HideHandles(bool quick) override;
-
- private:
-  friend class TouchSelectionControllerImplTest;
-  friend class test::WidgetTestInteractive;
-
-  void SetDraggingHandle(EditingHandleView* handle);
-
-  // Callback to inform the client view that the selection handle has been
-  // dragged, hence selection may need to be updated.
-  void SelectionHandleDragged(const gfx::Point& drag_pos);
-
-  // Convenience method to convert a point from a selection handle's coordinate
-  // system to that of the client view.
-  void ConvertPointToClientView(EditingHandleView* source, gfx::Point* point);
-
-  // Convenience method to set a handle's selection rect and hide it if it is
-  // located out of client view.
-  void SetHandleSelectionRect(EditingHandleView* handle, const gfx::Rect& rect,
-                              const gfx::Rect& rect_in_screen);
-
-  // Checks if handle should be shown for a selection end-point at |rect|.
-  // |rect| should be the clipped version of the selection end-point.
-  bool ShouldShowHandleFor(const gfx::Rect& rect) const;
-
-  // Overridden from TouchEditingMenuController.
-  virtual bool IsCommandIdEnabled(int command_id) const override;
-  virtual void ExecuteCommand(int command_id, int event_flags) override;
-  virtual void OpenContextMenu() override;
-  virtual void OnMenuClosed(TouchEditingMenuView* menu) override;
-
-  // Overriden from aura::WindowObserver.
-  virtual void OnAncestorWindowTransformed(aura::Window* source,
-                                           aura::Window* window) override;
-
-  // Overridden from WidgetObserver. We will observe the widget backing the
-  // |client_view_| so that when its moved/resized, we can update the selection
-  // handles appropriately.
-  virtual void OnWidgetClosing(Widget* widget) override;
-  virtual void OnWidgetBoundsChanged(Widget* widget,
-                                     const gfx::Rect& new_bounds) override;
-
-  // Overriden from ui::EventHandler.
-  virtual void OnKeyEvent(ui::KeyEvent* event) override;
-  virtual void OnMouseEvent(ui::MouseEvent* event) override;
-  virtual void OnScrollEvent(ui::ScrollEvent* event) override;
-
-  // Time to show context menu.
-  void ContextMenuTimerFired();
-
-  void StartContextMenuTimer();
-
-  // Convenience method to update the position/visibility of the context menu.
-  void UpdateContextMenu();
-
-  // Convenience method for hiding context menu.
-  void HideContextMenu();
-
-  // Convenience methods for testing.
-  gfx::NativeView GetCursorHandleNativeView();
-  gfx::Point GetSelectionHandle1Position();
-  gfx::Point GetSelectionHandle2Position();
-  gfx::Point GetCursorHandlePosition();
-  bool IsSelectionHandle1Visible();
-  bool IsSelectionHandle2Visible();
-  bool IsCursorHandleVisible();
-
-  ui::TouchEditable* client_view_;
-  Widget* client_widget_;
-  scoped_ptr<EditingHandleView> selection_handle_1_;
-  scoped_ptr<EditingHandleView> selection_handle_2_;
-  scoped_ptr<EditingHandleView> cursor_handle_;
-  TouchEditingMenuView* context_menu_;
-
-  // Timer to trigger |context_menu| (|context_menu| is not shown if the
-  // selection handles are being updated. It appears only when the handles are
-  // stationary for a certain amount of time).
-  base::OneShotTimer<TouchSelectionControllerImpl> context_menu_timer_;
-
-  // Pointer to the SelectionHandleView being dragged during a drag session.
-  EditingHandleView* dragging_handle_;
-
-  // Selection end points. In cursor mode, the two end points are the same and
-  // correspond to |cursor_handle_|; otherwise, they correspond to
-  // |selection_handle_1_| and |selection_handle_2_|, respectively. These
-  // values should be used when selection end points are needed rather than
-  // position of handles which might be invalid when handles are hidden.
-  gfx::Rect selection_end_point_1_;
-  gfx::Rect selection_end_point_2_;
-  // Selection end points, clipped to client view's boundaries.
-  gfx::Rect selection_end_point_1_clipped_;
-  gfx::Rect selection_end_point_2_clipped_;
-
-  DISALLOW_COPY_AND_ASSIGN(TouchSelectionControllerImpl);
-};
-
-}  // namespace views
-
-#endif  // UI_UI_VIEWS_TOUCHUI_TOUCH_SELECTION_CONTROLLER_IMPL_H_