Added text filtering to 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 <vector>
 
 #include "ash/wm/overview/window_selector.h"
@@ skipping 39 matching lines @@
              const std::vector<aura::Window*>& window_list,
              WindowSelector* window_selector);
   virtual ~WindowGrid();
 
   // Positions all the windows in the grid.
   void PositionWindows(bool animate);
 
   // Updates |selected_index_| according to the specified |direction| and calls
   // MoveSelectionWidget(). Returns |true| if the new selection index is out of
   // this window grid bounds.
-  bool Move(WindowSelector::Direction direction);
+  bool Move(WindowSelector::Direction direction, bool animate);
 
   // Returns the target selected window, or NULL if there is none selected.
   WindowSelectorItem* SelectedWindow() const;
 
   // Returns true if a window is contained in any of the WindowSelectorItems
   // this grid owns.
   bool Contains(const aura::Window* window) const;
 
+  // Dims the items whose titles do not contain |pattern| and prevents their
+  // selection. The pattern has its accents removed and is converted to
+  // lowercase in a l10n sensitive context.
+  // If |pattern| is empty, no item is dimmed.
+  void FilterItems(const base::string16& pattern);
+
   // Returns true if the grid has no more windows.
   bool empty() const { return window_list_.empty(); }
 
   // Returns how many window selector items are in the grid.
   size_t size() const { return window_list_.size(); }
 
   // Returns true if the selection widget is active.
   bool is_selecting() const { return selection_widget_ != NULL; }
 
   // Returns the root window in which the grid displays the windows.
@@ skipping 12 matching lines @@
 
  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 out_of_bounds,
+                           bool animate);
 
   // 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_;
 
+  // Indicates if there is at least one undimmed item in the overview.
+  bool has_active_item_;
+
   // Number of columns in the grid.
   size_t num_columns_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowGrid);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_OVERVIEW_WINDOW_GRID_H_