| // 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_MAXIMIZE_MODE_WORKSPACE_BACKDROP_DELEGATE_H_ |
| #define ASH_WM_MAXIMIZE_MODE_WORKSPACE_BACKDROP_DELEGATE_H_ |
| |
| #include "ash/wm/workspace/workspace_layout_manager_delegate.h" |
| #include "ui/aura/window_observer.h" |
| |
| namespace aura { |
| class Window; |
| } |
| |
| namespace ui { |
| class Layer; |
| } |
| |
| namespace views { |
| class Widget; |
| } |
| |
| namespace ash { |
| |
| // A background which gets created for a container |window| and which gets |
| // stacked behind the topmost window (within that container) covering the |
| // entire container. |
| class WorkspaceBackdropDelegate : public aura::WindowObserver, |
| public WorkspaceLayoutManagerDelegate { |
| public: |
| explicit WorkspaceBackdropDelegate(aura::Window* container); |
| virtual ~WorkspaceBackdropDelegate(); |
| |
| // WindowObserver overrides: |
| virtual void OnWindowBoundsChanged(aura::Window* window, |
| const gfx::Rect& old_bounds, |
| const gfx::Rect& new_bounds) OVERRIDE; |
| |
| // WorkspaceLayoutManagerDelegate overrides: |
| virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE; |
| virtual void OnWindowRemovedFromLayout(aura::Window* child) OVERRIDE; |
| virtual void OnChildWindowVisibilityChanged(aura::Window* child, |
| bool visible) OVERRIDE; |
| virtual void OnWindowStackingChanged(aura::Window* window) OVERRIDE; |
| virtual void OnPostWindowStateTypeChange( |
| wm::WindowState* window_state, |
| wm::WindowStateType old_type) OVERRIDE; |
| virtual void OnDisplayWorkAreaInsetsChanged() OVERRIDE; |
| |
| private: |
| // Restack the backdrop relatively to the other windows in the container. |
| void RestackBackdrop(); |
| |
| // Returns the current visible top level window in the container. |
| aura::Window* GetCurrentTopWindow(); |
| |
| // Position & size the background over the container window. |
| void AdjustToContainerBounds(); |
| |
| // Show the overlay. |
| void Show(); |
| |
| // The background which covers the rest of the screen. |
| views::Widget* background_; |
| |
| // The window which is being "maximized". |
| aura::Window* container_; |
| |
| // If true, the |RestackOrHideWindow| might recurse. |
| bool in_restacking_; |
| |
| DISALLOW_COPY_AND_ASSIGN(WorkspaceBackdropDelegate); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_WM_MAXIMIZE_MODE_WORKSPACE_BACKDROP_DELEGATE_H_ |