| // Copyright 2018 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_PREVIEW_VIEW_H_ |
| #define ASH_WM_WINDOW_PREVIEW_VIEW_H_ |
| |
| #include "ash/ash_export.h" |
| #include "ash/wm/window_mirror_view.h" |
| #include "base/containers/flat_map.h" |
| #include "base/macros.h" |
| #include "ui/aura/client/transient_window_client_observer.h" |
| #include "ui/aura/window.h" |
| #include "ui/aura/window_observer.h" |
| #include "ui/views/view.h" |
| |
| namespace ash { |
| namespace wm { |
| |
| // A view that mirrors the client area of a window and all its transient |
| // descendants. |
| class ASH_EXPORT WindowPreviewView |
| : public views::View, |
| public aura::client::TransientWindowClientObserver, |
| public aura::WindowObserver { |
| public: |
| WindowPreviewView(aura::Window* window, bool trilinear_filtering_on_init); |
| ~WindowPreviewView() override; |
| |
| // Recreate the preview views for the window and all its transient |
| // descendants. |
| void RecreatePreviews(); |
| |
| // views::View: |
| gfx::Size CalculatePreferredSize() const override; |
| void Layout() override; |
| |
| // aura::client::TransientWindowClientObserver: |
| void OnTransientChildWindowAdded(aura::Window* parent, |
| aura::Window* transient_child) override; |
| void OnTransientChildWindowRemoved(aura::Window* parent, |
| aura::Window* transient_child) override; |
| |
| // aura::WindowObserver: |
| void OnWindowDestroying(aura::Window* window) override; |
| |
| aura::Window* window() { return window_; } |
| |
| private: |
| friend class WindowPreviewViewTestApi; |
| |
| void AddWindow(aura::Window* window); |
| void RemoveWindow(aura::Window* window); |
| |
| // Get the smallest rectangle that contains the bounds of all the windows in |
| // |mirror_views_|. |
| gfx::RectF GetUnionRect() const; |
| |
| aura::Window* window_; |
| bool trilinear_filtering_on_init_; |
| |
| base::flat_map<aura::Window*, WindowMirrorView*> mirror_views_; |
| |
| DISALLOW_COPY_AND_ASSIGN(WindowPreviewView); |
| }; |
| |
| } // namespace wm |
| } // namespace ash |
| |
| #endif // ASH_WM_WINDOW_PREVIEW_VIEW_H_ |