Only support left/right maximizing at 50% width when the --ash-enable-alternate-caption-button

ash/wm/window_util.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_WINDOW_UTIL_H_
 #define ASH_WM_WINDOW_UTIL_H_
 
 #include "ash/ash_export.h"
 #include "base/compiler_specific.h"
 #include "ui/base/ui_base_types.h"
+#include "ui/gfx/rect.h"
 
 namespace aura {
 class RootWindow;
 class Window;
 }
 
-namespace gfx {
-class Rect;
-}
-
 namespace ui {
 class Event;
 class Layer;
 }
 
 namespace ash {
 // We force at least this many DIPs for any window on the screen.
 const int kMinimumOnScreenArea = 10;
 
 namespace wm {
 
+// The edge to snap a window to.
+enum SnapEdge {
+SNAP_LEFT_EDGE,
+SNAP_RIGHT_EDGE
+};
+
 // Convenience setters/getters for |aura::client::kRootWindowActiveWindow|.
 ASH_EXPORT void ActivateWindow(aura::Window* window);
 ASH_EXPORT void DeactivateWindow(aura::Window* window);
 ASH_EXPORT bool IsActiveWindow(aura::Window* window);
 ASH_EXPORT aura::Window* GetActiveWindow();
 ASH_EXPORT bool CanActivateWindow(aura::Window* window);
 
 // Retrieves the activatable window for |window|. If |window| is activatable,
 // this will just return it, otherwise it will climb the parent/transient parent
 // chain looking for a window that is activatable, per the ActivationController.
@@ skipping 33 matching lines @@
 
 // Minimizes |window|, which must not be NULL.
 ASH_EXPORT void MinimizeWindow(aura::Window* window);
 
 // Restores |window|, which must not be NULL.
 ASH_EXPORT void RestoreWindow(aura::Window* window);
 
 // Maximizes or restores |window| based on its state. |window| must not be NULL.
 ASH_EXPORT void ToggleMaximizedWindow(aura::Window* window);
 
+// Returns the bounds for snapped windows at |edge| in parent coordinates.
+ASH_EXPORT gfx::Rect GetSnappedWindowBoundsInParent(aura::Window* window,
+                                                    SnapEdge edge);
+
+// Snaps |window| to the left or the right edge.
+ASH_EXPORT void SnapWindowToEdge(aura::Window*, SnapEdge edge);
+
 // Moves the window to the center of the display.
 ASH_EXPORT void CenterWindow(aura::Window* window);
 
 // Returns true if |window|'s position can automatically be managed.
 ASH_EXPORT bool IsWindowPositionManaged(const aura::Window* window);
 
 // Change the |window|'s position manageability to |managed|.
 ASH_EXPORT void SetWindowPositionManaged(aura::Window* window, bool managed);
 
 // Change the availability of animation to the fullscreen of the |window|.
@@ skipping 32 matching lines @@
 
 // Moves |window| to the root window where the |event| occured if it is not
 // already in the same root window. Returns true if |window| was moved.
 ASH_EXPORT bool MoveWindowToEventRoot(aura::Window* window,
                                       const ui::Event& event);
 
 }  // namespace wm
 }  // namespace ash
 
 #endif  // ASH_WM_WINDOW_UTIL_H_