WindowServer+LibGUI+Taskbar: Don't include frameless windows in lists

Frameless windows don't need to show up in the taskbar or the switcher.

Applications/Taskbar/TaskbarWindow.cpp

@@ -141,9 +141,9 @@ NonnullRefPtr<GUI::Button> TaskbarWindow::create_button(const WindowIdentifier&
     return button;
 }
 
-static bool should_include_window(GUI::WindowType window_type)
+static bool should_include_window(GUI::WindowType window_type, bool is_frameless)
 {
-    return window_type == GUI::WindowType::Normal;
+    return window_type == GUI::WindowType::Normal && !is_frameless;
 }
 
 void TaskbarWindow::wm_event(GUI::WMEvent& event)
@@ -199,7 +199,7 @@ void TaskbarWindow::wm_event(GUI::WMEvent& event)
             changed_event.is_active(),
             changed_event.is_minimized());
 #endif
-        if (!should_include_window(changed_event.window_type()))
+        if (!should_include_window(changed_event.window_type(), changed_event.is_frameless()))
             break;
         auto& window = WindowList::the().ensure_window(identifier);
         window.set_title(changed_event.title());

Libraries/LibGUI/Event.h

@@ -110,13 +110,14 @@ public:
 
 class WMWindowStateChangedEvent : public WMEvent {
 public:
-    WMWindowStateChangedEvent(int client_id, int window_id, const StringView& title, const Gfx::Rect& rect, bool is_active, WindowType window_type, bool is_minimized)
+    WMWindowStateChangedEvent(int client_id, int window_id, const StringView& title, const Gfx::Rect& rect, bool is_active, WindowType window_type, bool is_minimized, bool is_frameless)
         : WMEvent(Event::Type::WM_WindowStateChanged, client_id, window_id)
         , m_title(title)
         , m_rect(rect)
         , m_window_type(window_type)
         , m_active(is_active)
         , m_minimized(is_minimized)
+        , m_frameless(is_frameless)
     {
     }
 
@@ -125,6 +126,7 @@ public:
     bool is_active() const { return m_active; }
     WindowType window_type() const { return m_window_type; }
     bool is_minimized() const { return m_minimized; }
+    bool is_frameless() const { return m_frameless; }
 
 private:
     String m_title;
@@ -132,6 +134,7 @@ private:
     WindowType m_window_type;
     bool m_active;
     bool m_minimized;
+    bool m_frameless;
 };
 
 class WMWindowRectChangedEvent : public WMEvent {

Libraries/LibGUI/WindowServerConnection.cpp

@@ -232,7 +232,7 @@ void WindowServerConnection::handle(const Messages::WindowClient::MenuItemActiva
 void WindowServerConnection::handle(const Messages::WindowClient::WM_WindowStateChanged& message)
 {
     if (auto* window = Window::from_window_id(message.wm_id()))
-        Core::EventLoop::current().post_event(*window, make<WMWindowStateChangedEvent>(message.client_id(), message.window_id(), message.title(), message.rect(), message.is_active(), static_cast<WindowType>(message.window_type()), message.is_minimized()));
+        Core::EventLoop::current().post_event(*window, make<WMWindowStateChangedEvent>(message.client_id(), message.window_id(), message.title(), message.rect(), message.is_active(), static_cast<WindowType>(message.window_type()), message.is_minimized(), message.is_frameless()));
 }
 
 void WindowServerConnection::handle(const Messages::WindowClient::WM_WindowRectChanged& message)

Servers/WindowServer/ClientConnection.cpp

@@ -462,7 +462,7 @@ Window* ClientConnection::window_from_id(i32 window_id)
 OwnPtr<Messages::WindowServer::CreateWindowResponse> ClientConnection::handle(const Messages::WindowServer::CreateWindow& message)
 {
     int window_id = m_next_window_id++;
-    auto window = Window::construct(*this, (WindowType)message.type(), window_id, message.modal(), message.minimizable(), message.resizable(), message.fullscreen());
+    auto window = Window::construct(*this, (WindowType)message.type(), window_id, message.modal(), message.minimizable(), message.frameless(), message.resizable(), message.fullscreen());
 
     dbg() << "Constructing window with parent_window_id=" << message.parent_window_id();
 
@@ -479,8 +479,6 @@ OwnPtr<Messages::WindowServer::CreateWindowResponse> ClientConnection::handle(co
         window->set_parent_window(*parent_window);
     }
 
-    window->set_frameless(message.frameless());
-
     window->set_has_alpha_channel(message.has_alpha_channel());
     window->set_title(message.title());
     if (!message.fullscreen()) {

Servers/WindowServer/Window.cpp

@@ -89,12 +89,13 @@ Window::Window(Core::Object& parent, WindowType type)
     WindowManager::the().add_window(*this);
 }
 
-Window::Window(ClientConnection& client, WindowType window_type, int window_id, bool modal, bool minimizable, bool resizable, bool fullscreen)
+Window::Window(ClientConnection& client, WindowType window_type, int window_id, bool modal, bool minimizable, bool frameless, bool resizable, bool fullscreen)
     : Core::Object(&client)
     , m_client(&client)
     , m_type(window_type)
     , m_modal(modal)
     , m_minimizable(minimizable)
+    , m_frameless(frameless)
     , m_resizable(resizable)
     , m_fullscreen(fullscreen)
     , m_window_id(window_id)

Servers/WindowServer/Window.h

@@ -66,7 +66,7 @@ class Window final : public Core::Object
     , public InlineLinkedListNode<Window> {
     C_OBJECT(Window)
 public:
-    Window(ClientConnection&, WindowType, int window_id, bool modal, bool minimizable, bool resizable, bool fullscreen);
+    Window(ClientConnection&, WindowType, int window_id, bool modal, bool minimizable, bool frameless, bool resizable, bool fullscreen);
     Window(Core::Object&, WindowType);
     virtual ~Window() override;
 
@@ -254,6 +254,7 @@ private:
     bool m_has_alpha_channel { false };
     bool m_modal { false };
     bool m_minimizable { false };
+    bool m_frameless { false };
     bool m_resizable { false };
     bool m_listens_to_wm_events { false };
     bool m_minimized { false };
@@ -262,7 +263,6 @@ private:
     WindowTileType m_tiled { WindowTileType::None };
     Gfx::Rect m_untiled_rect;
     bool m_occluded { false };
-    bool m_frameless { false };
     RefPtr<Gfx::Bitmap> m_backing_store;
     RefPtr<Gfx::Bitmap> m_last_backing_store;
     int m_window_id { -1 };

Servers/WindowServer/WindowClient.ipc

@@ -23,7 +23,7 @@ endpoint WindowClient = 4
     ClipboardContentsChanged(String content_type) =|
 
     WM_WindowRemoved(i32 wm_id, i32 client_id, i32 window_id) =|
-    WM_WindowStateChanged(i32 wm_id, i32 client_id, i32 window_id, bool is_active, bool is_minimized, i32 window_type, String title, Gfx::Rect rect) =|
+    WM_WindowStateChanged(i32 wm_id, i32 client_id, i32 window_id, bool is_active, bool is_minimized, bool is_frameless, i32 window_type, String title, Gfx::Rect rect) =|
     WM_WindowIconBitmapChanged(i32 wm_id, i32 client_id, i32 window_id, i32 icon_buffer_id, Gfx::Size icon_size) =|
     WM_WindowRectChanged(i32 wm_id, i32 client_id, i32 window_id, Gfx::Rect rect) =|
 

Servers/WindowServer/WindowManager.cpp

@@ -251,7 +251,7 @@ void WindowManager::tell_wm_listener_about_window(Window& listener, Window& wind
         return;
     if (window.is_internal())
         return;
-    listener.client()->post_message(Messages::WindowClient::WM_WindowStateChanged(listener.window_id(), window.client_id(), window.window_id(), window.is_active(), window.is_minimized(), (i32)window.type(), window.title(), window.rect()));
+    listener.client()->post_message(Messages::WindowClient::WM_WindowStateChanged(listener.window_id(), window.client_id(), window.window_id(), window.is_active(), window.is_minimized(), window.is_frameless(), (i32)window.type(), window.title(), window.rect()));
 }
 
 void WindowManager::tell_wm_listener_about_window_rect(Window& listener, Window& window)

Servers/WindowServer/WindowSwitcher.cpp

@@ -223,6 +223,8 @@ void WindowSwitcher::refresh()
     int longest_title_width = 0;
     wm.for_each_window_of_type_from_front_to_back(
         WindowType::Normal, [&](Window& window) {
+            if (window.is_frameless())
+                return IterationDecision::Continue;
             ++window_count;
             longest_title_width = max(longest_title_width, wm.font().width(window.title()));
             if (selected_window == &window)