Implemented swipe to close in overview mode.

ash/wm/overview/window_selector_item.h

 // Copyright 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 ASH_WM_OVERVIEW_WINDOW_SELECTOR_ITEM_H_
 #define ASH_WM_OVERVIEW_WINDOW_SELECTOR_ITEM_H_
 
 #include "ash/wm/overview/scoped_transform_overview_window.h"
 #include "ash/wm/overview/transparent_activate_window_button.h"
 #include "ash/wm/overview/transparent_activate_window_button_delegate.h"
@@ skipping 81 matching lines @@
   const gfx::Rect& target_bounds() const { return target_bounds_; }
 
   // views::ButtonListener:
   void ButtonPressed(views::Button* sender, const ui::Event& event) override;
 
   // aura::WindowObserver:
   virtual void OnWindowTitleChanged(aura::Window* window) override;
   virtual void OnWindowTransformed(aura::Window* window) override;
 
   // ash::TransparentActivateWindowButtonDelegate:
+  virtual void Scroll(int delta_x) override;
+  virtual void CancelScroll() override;
   virtual void Select() override;
+  virtual void Close() override;

[jonross, 2014/11/12 23:57:03]

nit: remove virtual from all of the overrides.

[bruthig, 2015/01/02 16:49:17]

Done.

 
  protected:
   // Sets the bounds of this selector's items to |target_bounds| in
   // |root_window|. If |animate| the windows are animated from their current
   // location.
   virtual void SetItemBounds(aura::Window* root_window,
                              const gfx::Rect& target_bounds,
                              bool animate);
 
   // Sets the bounds used by the selector item's windows.
@@ skipping 18 matching lines @@
     virtual ~WindowListItem();
 
     TransparentActivateWindowButton* activate_button() {
       return activate_button_.get();
     }
 
     ScopedTransformOverviewWindow* transform_window() {
       return transform_window_.get();
     }
 
-    // Closes the window managed by |this|.
-    void Close();
-
     // ash::TransparentActivateWindowButtonDelegate:
+    virtual void Scroll(int delta_x) override;
+    virtual void CancelScroll() override;
     virtual void Select() override;
+    virtual void Close() override;
 
    private:
     // The transparent overlay that captures events.
     scoped_ptr<TransparentActivateWindowButton> activate_button_;
 
     // A window wrapper that assists with window manipulations, (ie
     // transformations).
     scoped_ptr<ScopedTransformOverviewWindow> transform_window_;
   };
 
   typedef ScopedVector<WindowListItem> WindowList;
 
   // Creates a label to display under the window selector item.
   void UpdateWindowLabels(const gfx::Rect& target_bounds,
                           aura::Window* root_window,
                           bool animate);
 
   // Initializes window_label_.
   void CreateWindowLabel(const base::string16& title);
 
+  // Set the minimum distance, in pixels, for which a scroll gesture will cause
+  // a window to be closed when the scroll distance exceeds |distance|.
+  void SetCloseWindowDistanceMinimum(int distance);
+
   // Updates the selector button overlay's bounds and accessibility names.
   void UpdateSelectorButtons();
 
   // Updates the close button's bounds.  If |animate| is true then the close
   // button is animated from its current location.
   void UpdateCloseButtonLayout(bool animate);
 
   // Updates the close button's bounds.
   void UpdateCloseButtonBounds();
 
@@ skipping 35 matching lines @@
 
   // List of all Windows added to this and their associated helper classes.
   WindowList window_list_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowSelectorItem);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_OVERVIEW_WINDOW_SELECTOR_ITEM_H_