Remove TransparentActivateWindowButton from Overview Mode

ash/wm/overview/window_grid.h

 // Copyright 2014 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_WM_OVERVIEW_WINDOW_GRID_H_
 #define ASH_WM_OVERVIEW_WINDOW_GRID_H_
 
 #include <set>
 #include <vector>
 
 #include "ash/wm/overview/window_selector.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/window_observer.h"
 
 namespace aura {
 class Window;
+class ScopedWindowTargeter;
 }
 
 namespace views {
 class Widget;
 }
 
 namespace ash {
 
 class WindowSelectorItem;
 
@@ skipping 10 matching lines @@
 // +-------+
 // |   6   |
 // +-------+
 // Example sequences:
 //  - Going right to left
 //    0, 1, 2, 3, 4, 5, 6
 //  - Going "top" to "bottom"
 //    0, 3, 6, 1, 4, 2, 5
 // The selector is switched to the next window grid (if available) or wrapped if
 // it reaches the end of its movement sequence.
-class ASH_EXPORT WindowGrid : public aura::WindowObserver {
+class ASH_EXPORT WindowGrid : public aura::WindowObserver,
+                              public ui::EventHandler {
  public:
   WindowGrid(aura::Window* root_window,
              const std::vector<aura::Window*>& window_list,
              WindowSelector* window_selector);
   ~WindowGrid() override;
 
   // Prepares the windows in this grid for overview. This will restore all
   // minimized windows and ensure they are visible.
   void PrepareForOverview();
 
@@ skipping 34 matching lines @@
     return window_list_.get();
   }
 
   // aura::WindowObserver:
   void OnWindowDestroying(aura::Window* window) override;
   // TODO(flackr): Handle window bounds changed in WindowSelectorItem.
   void OnWindowBoundsChanged(aura::Window* window,
                              const gfx::Rect& old_bounds,
                              const gfx::Rect& new_bounds) override;
 
+  // ui::EventHandler:
+  void OnMouseEvent(ui::MouseEvent* mouse) override;
+
+  void OnGestureEvent(ui::GestureEvent* gesture) override;
+
  private:
   friend class WindowSelectorTest;
 
   // Internal function to initialize the selection widget.
   void InitSelectionWidget(WindowSelector::Direction direction);
 
   // Moves the selection widget to the specified |direction|.
   void MoveSelectionWidget(WindowSelector::Direction direction,
                            bool recreate_selection_widget,
                            bool out_of_bounds,
                            bool animate);
 
+  // Handles taps and clicks.
+  void HandleTap(ui::LocatedEvent* event) const;
+
+  // Returns the window at which the event is located.
+  aura::Window* GetWindowAt(ui::LocatedEvent* event,
+                            aura::Window* container) const;
+
   // Moves the selection widget to the targeted window.
   void MoveSelectionWidgetToTarget(bool animate);
 
   // Returns the target bounds of the currently selected item.
   const gfx::Rect GetSelectionBounds() const;
 
   // Root window the grid is in.
   aura::Window* root_window_;
 
   // Pointer to the window selector that spawned this grid.
   WindowSelector* window_selector_;
 
   // Vector containing all the windows in this grid.
   ScopedVector<WindowSelectorItem> window_list_;
 
   // Vector containing the observed windows.
   std::set<aura::Window*> observed_windows_;
 
   // Widget that indicates to the user which is the selected window.
   scoped_ptr<views::Widget> selection_widget_;
 
   // Current selected window position.
   size_t selected_index_;
 
   // Number of columns in the grid.
   size_t num_columns_;
 
+  // The container where the static targeter is set.
+  aura::Window* static_targeter_container_;
+
+  // Holds and restores the panel container's targeter.
+  scoped_ptr<aura::ScopedWindowTargeter> scoped_panel_targeter_;
+
   DISALLOW_COPY_AND_ASSIGN(WindowGrid);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_OVERVIEW_WINDOW_GRID_H_