Drag and rotate windows

ui/aura_shell/workspace/workspace_manager.h

 // Copyright (c) 2011 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_AURA_SHELL_WORKSPACE_WORKSPACE_MANAGER_H_
 #define UI_AURA_SHELL_WORKSPACE_WORKSPACE_MANAGER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 26 matching lines @@
   // this WorkspaceManager. Deleting workspace will automatically
   // remove the workspace from the workspace_manager.
   Workspace* CreateWorkspace();
 
   // Returns the active workspace.
   Workspace* GetActiveWorkspace() const;
 
   // Returns the workspace that contanis the |window|.
   Workspace* FindBy(aura::Window* window) const;
 
+  // Returns the window for swap operation based on the |location|.
+  aura::Window* FindSwapWindowForLocation(const gfx::Point& location);
+
   // Sets the bounds of all workspaces.
   void LayoutWorkspaces();
 
   // Returns the bounds in which a window can be moved/resized.
   gfx::Rect GetDragAreaBounds();
 
   // Turn on/off overview mode.
   void SetOverview(bool overview);
   bool is_overview() const { return is_overview_; }
 
+  // Swaps the |drag| and |target|. If they're in the same workspace,
+  // this simply swaps the layout location. If they're in the different
+  // workspaces, these windows move between workspaces.
+  void SwapWindow(aura::Window* drag, aura::Window* target);
+
   // Overridden from aura::DesktopObserver:
   virtual void OnDesktopResized(const gfx::Size& new_size) OVERRIDE;
   virtual void OnActiveWindowChanged(aura::Window* active) OVERRIDE;
 
  private:
   friend class Workspace;
   FRIEND_TEST_ALL_PREFIXES(WorkspaceManagerTest, Overview);
   FRIEND_TEST_ALL_PREFIXES(WorkspaceManagerTest, LayoutWorkspaces);
+  FRIEND_TEST_ALL_PREFIXES(WorkspaceManagerTest, FindSwapWindow);
 
   void AddWorkspace(Workspace* workspace);
   void RemoveWorkspace(Workspace* workspace);
 
   // Sets the active workspace.
   void SetActiveWorkspace(Workspace* workspace);
 
   // Returns the bounds of the work are given |workspace_bounds|.
   gfx::Rect GetWorkAreaBounds(const gfx::Rect& workspace_bounds);
 
@@ skipping 12 matching lines @@
 
   // True if the workspace manager is in overview mode.
   bool is_overview_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkspaceManager);
 };
 
 }  // namespace aura_shell
 
 #endif  // UI_AURA_SHELL_WORKSPACE_WORKSPACE_MANAGER_H_