WindowServer: Add methods for set background color and wallpaper mode

Author: https://github.com/asliturk
Commit: https://github.com/SerenityOS/serenity/commit/adf524015a2
Pull-request: https://github.com/SerenityOS/serenity/pull/1526
Reviewed-by: https://github.com/awesomekling

Servers/WindowServer/ClientConnection.cpp

@@ -309,6 +309,18 @@ void ClientConnection::handle(const Messages::WindowServer::AsyncSetWallpaper& m
     });
 }
 
+OwnPtr<Messages::WindowServer::SetBackgroundColorResponse> ClientConnection::handle(const Messages::WindowServer::SetBackgroundColor& message)
+{
+    Compositor::the().set_backgound_color(message.background_color());
+    return make<Messages::WindowServer::SetBackgroundColorResponse>();
+}
+
+OwnPtr<Messages::WindowServer::SetWallpaperModeResponse> ClientConnection::handle(const Messages::WindowServer::SetWallpaperMode& message)
+{
+    Compositor::the().set_wallpaper_mode(message.mode());
+    return make<Messages::WindowServer::SetWallpaperModeResponse>();
+}
+
 OwnPtr<Messages::WindowServer::GetWallpaperResponse> ClientConnection::handle(const Messages::WindowServer::GetWallpaper&)
 {
     return make<Messages::WindowServer::GetWallpaperResponse>(Compositor::the().wallpaper_path());

Servers/WindowServer/ClientConnection.h

@@ -110,6 +110,8 @@ private:
     virtual OwnPtr<Messages::WindowServer::MoveWindowToFrontResponse> handle(const Messages::WindowServer::MoveWindowToFront&) override;
     virtual OwnPtr<Messages::WindowServer::SetFullscreenResponse> handle(const Messages::WindowServer::SetFullscreen&) override;
     virtual void handle(const Messages::WindowServer::AsyncSetWallpaper&) override;
+    virtual OwnPtr<Messages::WindowServer::SetBackgroundColorResponse> handle(const Messages::WindowServer::SetBackgroundColor&) override;
+    virtual OwnPtr<Messages::WindowServer::SetWallpaperModeResponse> handle(const Messages::WindowServer::SetWallpaperMode&) override;
     virtual OwnPtr<Messages::WindowServer::GetWallpaperResponse> handle(const Messages::WindowServer::GetWallpaper&) override;
     virtual OwnPtr<Messages::WindowServer::SetResolutionResponse> handle(const Messages::WindowServer::SetResolution&) override;
     virtual OwnPtr<Messages::WindowServer::SetWindowOverrideCursorResponse> handle(const Messages::WindowServer::SetWindowOverrideCursor&) override;

Servers/WindowServer/Compositor.cpp

@@ -139,12 +139,18 @@ void Compositor::compose()
         return false;
     };
 
+    Color background_color = wm.palette().desktop_background();
+    String background_color_entry = wm.wm_config()->read_entry("Background", "Color", "");
+    if (!background_color_entry.is_empty()) {
+        background_color = Color::from_string(background_color_entry).value_or(background_color);
+    }
+
     // Paint the wallpaper.
     for (auto& dirty_rect : dirty_rects.rects()) {
         if (wm.any_opaque_window_contains_rect(dirty_rect))
             continue;
         // FIXME: If the wallpaper is opaque, no need to fill with color!
-        m_back_painter->fill_rect(dirty_rect, wm.palette().desktop_background());
+        m_back_painter->fill_rect(dirty_rect, background_color);
         if (m_wallpaper) {
             if (m_wallpaper_mode == WallpaperMode::Simple) {
                 m_back_painter->blit(dirty_rect.location(), *m_wallpaper, dirty_rect);
@@ -325,6 +331,32 @@ void Compositor::invalidate(const Gfx::Rect& a_rect)
     }
 }
 
+bool Compositor::set_backgound_color(const String& background_color)
+{
+    auto& wm = WindowManager::the();
+    wm.wm_config()->write_entry("Background", "Color", background_color);
+    bool ret_val = wm.wm_config()->sync();
+
+    if (ret_val)
+        Compositor::invalidate();
+
+    return ret_val;
+}
+
+bool Compositor::set_wallpaper_mode(const String& mode)
+{
+    auto& wm = WindowManager::the();
+    wm.wm_config()->write_entry("Background", "Mode", mode);
+    bool ret_val = wm.wm_config()->sync();
+
+    if (ret_val) {
+        m_wallpaper_mode = mode_to_enum(mode);
+        Compositor::invalidate();
+    }
+
+    return ret_val;
+}
+
 bool Compositor::set_wallpaper(const String& path, Function<void(bool)>&& callback)
 {
     LibThread::BackgroundAction<RefPtr<Gfx::Bitmap>>::create(

Servers/WindowServer/Compositor.h

@@ -55,6 +55,10 @@ public:
 
     bool set_resolution(int desired_width, int desired_height);
 
+    bool set_backgound_color(const String& background_color);
+
+    bool set_wallpaper_mode(const String& mode);
+
     bool set_wallpaper(const String& path, Function<void(bool)>&& callback);
     String wallpaper_path() const { return m_wallpaper_path; }
 

Servers/WindowServer/WindowServer.ipc

@@ -74,6 +74,10 @@ endpoint WindowServer = 2
     DismissMenu(i32 menu_id) => ()
 
     AsyncSetWallpaper(String path) =|
+    
+    SetBackgroundColor(String background_color)  => ()
+    SetWallpaperMode(String mode)  => ()
+
     SetResolution(Gfx::Size resolution) => (bool success, Gfx::Size resolution)
     SetWindowIconBitmap(i32 window_id, i32 icon_buffer_id, Gfx::Size icon_size) => ()