| // 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_WALLPAPER_WALLPAPER_VIEW_H_ |
| #define ASH_WALLPAPER_WALLPAPER_VIEW_H_ |
| |
| #include "ash/wallpaper/wallpaper_base_view.h" |
| #include "ui/views/context_menu_controller.h" |
| |
| namespace aura { |
| class Window; |
| } |
| |
| namespace ash { |
| |
| class PreEventDispatchHandler; |
| |
| // The desktop wallpaper view that, in addition to painting the wallpaper, can |
| // also add blur and dimming effects, as well as handle context menu requests. |
| class WallpaperView : public WallpaperBaseView, |
| public views::ContextMenuController { |
| public: |
| WallpaperView(int blur, float opacity); |
| ~WallpaperView() override; |
| |
| // Schedules a repaint of the wallpaper with blur and opacity changes. |
| void RepaintBlurAndOpacity(int repaint_blur, float repaint_opacity); |
| |
| int repaint_blur() const { return repaint_blur_; } |
| float repaint_opacity() const { return repaint_opacity_; } |
| |
| private: |
| friend class WallpaperControllerTest; |
| |
| // views::View: |
| const char* GetClassName() const override; |
| bool OnMousePressed(const ui::MouseEvent& event) override; |
| |
| // views::ContextMenuController: |
| void ShowContextMenuForViewImpl(views::View* source, |
| const gfx::Point& point, |
| ui::MenuSourceType source_type) override; |
| |
| // WallpaperBaseView: |
| void DrawWallpaper(const gfx::ImageSkia& wallpaper, |
| const gfx::Rect& src, |
| const gfx::Rect& dst, |
| const cc::PaintFlags& flags, |
| gfx::Canvas* canvas) override; |
| |
| // These are used by overview mode to animate the blur and opacity on the |
| // wallpaper. If |repaint_blur_| is not 0 and |repaint_opacity_| is not 1, the |
| // wallpaper will be downsampled and a blur and brightness filter will be |
| // applied. It is downsampled to increase performance. |
| int repaint_blur_; |
| float repaint_opacity_; |
| |
| // A cached downsampled image of the wallpaper image. It will help wallpaper |
| // blur/brightness animations be more performant. |
| base::Optional<gfx::ImageSkia> small_image_; |
| |
| // A event handler that handles taps and closes overview if we are in that |
| // mode. |
| // TODO(sammiequon): Move this logic into ash/wm/overview. |
| std::unique_ptr<PreEventDispatchHandler> pre_dispatch_handler_; |
| |
| DISALLOW_COPY_AND_ASSIGN(WallpaperView); |
| }; |
| |
| views::Widget* CreateWallpaperWidget(aura::Window* root_window, |
| int container_id, |
| int blur, |
| float opacity, |
| WallpaperView** out_wallpaper_view); |
| |
| } // namespace ash |
| |
| #endif // ASH_WALLPAPER_WALLPAPER_VIEW_H_ |