Stick windows to sides of workspaces

ash/wm/workspace/workspace_window_resizer.h

 // Copyright (c) 2012 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_WORKSPACE_WINDOW_RESIZER_H_
 #define ASH_WM_WORKSPACE_WINDOW_RESIZER_H_
 
 #include <vector>
 
 #include "ash/wm/window_resizer.h"
 #include "ash/wm/workspace/magnetism_matcher.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/window_tracker.h"
 
 namespace ash {
 namespace internal {
 
 class PhantomWindowController;
 class SnapSizer;
 class WindowSize;
+class WorkspaceWindowResizerTest;
 
 // WindowResizer implementation for workspaces. This enforces that windows are
 // not allowed to vertically move or resize outside of the work area. As windows
 // are moved outside the work area they are shrunk. We remember the height of
 // the window before it was moved so that if the window is again moved up we
 // attempt to restore the old height.
 class ASH_EXPORT WorkspaceWindowResizer : public WindowResizer {
  public:
   // When dragging an attached window this is the min size we'll make sure is
   // visible. In the vertical direction we take the max of this and that from
   // the delegate.
   static const int kMinOnscreenSize;
 
   // Min height we'll force on screen when dragging the caption.
   // TODO: this should come from a property on the window.
   static const int kMinOnscreenHeight;
 
   // Snap region when dragging close to the edges. That is, as the window gets
   // this close to an edge of the screen it snaps to the edge.
   static const int kScreenEdgeInset;
 
   virtual ~WorkspaceWindowResizer();
 
   static WorkspaceWindowResizer* Create(
       aura::Window* window,
       const gfx::Point& location_in_parent,
       int window_component,
       const std::vector<aura::Window*>& attached_windows);
 
-  // Overridden from WindowResizer:
+  // WindowResizer:
   virtual void Drag(const gfx::Point& location_in_parent,
                     int event_flags) OVERRIDE;
   virtual void CompleteDrag(int event_flags) OVERRIDE;
   virtual void RevertDrag() OVERRIDE;
   virtual aura::Window* GetTarget() OVERRIDE;
 
-  const gfx::Point& GetInitialLocationInParentForTest() const {
-    return details_.initial_location_in_parent;
-  }
+ private:
+  friend class internal::WorkspaceWindowResizerTest;
 
- private:
+  // WindowResizer:
+  virtual const gfx::Point& GetInitialLocationForTest() const OVERRIDE;
+
   WorkspaceWindowResizer(const Details& details,
                          const std::vector<aura::Window*>& attached_windows);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(WorkspaceWindowResizerTest, CancelSnapPhantom);
   FRIEND_TEST_ALL_PREFIXES(WorkspaceWindowResizerTest, PhantomSnapMaxSize);
 
   // Type of snapping.
   enum SnapType {
     // Snap to the left/right edge of the screen.
@@ skipping 134 matching lines @@
   // should attach.
   MatchedEdge magnetism_edge_;
 
   DISALLOW_COPY_AND_ASSIGN(WorkspaceWindowResizer);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_WORKSPACE_WINDOW_RESIZER_H_