2 files changed, 21 insertions, 4 deletions
diff --git a/include/cru/platform/gui/xcb/UiApplication.h b/include/cru/platform/gui/xcb/UiApplication.h
index 591ac33f..4fa4ec8d 100644
--- a/include/cru/platform/gui/xcb/UiApplication.h
+++ b/include/cru/platform/gui/xcb/UiApplication.h
@@ -62,18 +62,18 @@ class XcbUiApplication : public XcbResource, public virtual IUiApplication {
                         std::function<void()> action) override;
   void CancelTimer(long long id) override;
 
-  virtual std::vector<INativeWindow*> GetAllWindow() = 0;
+  std::vector<INativeWindow*> GetAllWindow() override;
 
-  virtual INativeWindow* CreateWindow() = 0;
+  INativeWindow* CreateWindow() override;
 
-  virtual cru::platform::graphics::IGraphicsFactory* GetGraphicsFactory() = 0;
+  cru::platform::graphics::IGraphicsFactory* GetGraphicsFactory() override;
 
   virtual ICursorManager* GetCursorManager() = 0;
 
   virtual IClipboard* GetClipboard() = 0;
 
   // If return nullptr, it means the menu is not supported.
-  virtual IMenu* GetApplicationMenu();
+  IMenu* GetApplicationMenu() override;
 
   /**
    * \todo Implement on Windows.
diff --git a/src/platform/gui/xcb/UiApplication.cpp b/src/platform/gui/xcb/UiApplication.cpp
index 0a6ab07f..74b20bd7 100644
--- a/src/platform/gui/xcb/UiApplication.cpp
+++ b/src/platform/gui/xcb/UiApplication.cpp
@@ -1,10 +1,12 @@
 #include "cru/platform/gui/xcb/UiApplication.h"
 
 #include "cru/platform/graphics/cairo/CairoGraphicsFactory.h"
+#include "cru/platform/gui/Window.h"
 #include "cru/platform/gui/xcb/Window.h"
 
 #include <poll.h>
 #include <xcb/xcb.h>
+#include <algorithm>
 
 namespace cru::platform::gui::xcb {
 XcbUiApplication::XcbUiApplication(
@@ -122,6 +124,21 @@ void XcbUiApplication::HandleXEvents() {
   }
 }
 
+std::vector<INativeWindow *> XcbUiApplication::GetAllWindow() {
+  std::vector<INativeWindow *> windows(windows_.size());
+  std::ranges::copy(windows_, windows.begin());
+  return windows;
+}
+
+INativeWindow *XcbUiApplication::CreateWindow() { return new XcbWindow(this); }
+
+cru::platform::graphics::IGraphicsFactory *
+XcbUiApplication::GetGraphicsFactory() {
+  return cairo_factory_;
+}
+
+IMenu *XcbUiApplication::GetApplicationMenu() { return nullptr; }
+
 void XcbUiApplication::RegisterWindow(XcbWindow *window) {
   windows_.push_back(window);
 }