| // 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_SNAP_TO_PIXEL_LAYOUT_MANAGER_H_ |
| #define ASH_WM_SNAP_TO_PIXEL_LAYOUT_MANAGER_H_ |
| |
| #include "ash/ash_export.h" |
| #include "base/macros.h" |
| #include "ui/aura/layout_manager.h" |
| |
| namespace ash { |
| |
| // A layout manager that places children's layer at the physical pixel |
| // boundaries. |
| class ASH_EXPORT SnapToPixelLayoutManager : public aura::LayoutManager { |
| public: |
| explicit SnapToPixelLayoutManager(aura::Window* container); |
| ~SnapToPixelLayoutManager() override; |
| |
| protected: |
| // Overridden from aura::LayoutManager: |
| void OnWindowResized() override; |
| void OnWindowAddedToLayout(aura::Window* child) override; |
| void OnWillRemoveWindowFromLayout(aura::Window* child) override; |
| void OnWindowRemovedFromLayout(aura::Window* child) override; |
| void OnChildWindowVisibilityChanged(aura::Window* child, |
| bool visibile) override; |
| void SetChildBounds(aura::Window* child, |
| const gfx::Rect& requested_bounds) override; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(SnapToPixelLayoutManager); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_WM_SNAP_TO_PIXEL_LAYOUT_MANAGER_H_ |