WindowsServer: Add scancode value to KeyEvent

Author: https://github.com/asliturk
Commit: https://github.com/SerenityOS/serenity/commit/9ec6ac31b82
Pull-request: https://github.com/SerenityOS/serenity/pull/2455
Reviewed-by: https://github.com/JonArcherII
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/bugaevc

Services/WindowServer/Event.h

@@ -76,11 +76,12 @@ enum class MouseButton : u8 {
 
 class KeyEvent final : public Event {
 public:
-    KeyEvent(Type type, int key, char character, u8 modifiers)
+    KeyEvent(Type type, int key, char character, u8 modifiers, u32 scancode)
         : Event(type)
         , m_key(key)
         , m_character(character)
         , m_modifiers(modifiers)
+        , m_scancode(scancode)
     {
     }
 
@@ -91,6 +92,7 @@ public:
     bool logo() const { return m_modifiers & Mod_Logo; }
     u8 modifiers() const { return m_modifiers; }
     char character() const { return m_character; }
+    u32 scancode() const { return m_scancode; }
 
 private:
     friend class EventLoop;
@@ -98,6 +100,7 @@ private:
     int m_key { 0 };
     char m_character { 0 };
     u8 m_modifiers { 0 };
+    u32 m_scancode { 0 };
 };
 
 class MouseEvent final : public Event {

Services/WindowServer/Screen.cpp

@@ -164,7 +164,7 @@ void Screen::on_receive_mouse_data(const MousePacket& packet)
 void Screen::on_receive_keyboard_data(::KeyEvent kernel_event)
 {
     m_modifiers = kernel_event.modifiers();
-    auto message = make<KeyEvent>(kernel_event.is_press() ? Event::KeyDown : Event::KeyUp, kernel_event.key, kernel_event.character, kernel_event.modifiers());
+    auto message = make<KeyEvent>(kernel_event.is_press() ? Event::KeyDown : Event::KeyUp, kernel_event.key, kernel_event.character, kernel_event.modifiers(), kernel_event.scancode);
     Core::EventLoop::current().post_event(WindowManager::the(), move(message));
 }
 

Services/WindowServer/Window.cpp

@@ -304,14 +304,16 @@ void Window::event(Core::Event& event)
             Messages::WindowClient::KeyDown(m_window_id,
                 (u8) static_cast<const KeyEvent&>(event).character(),
                 (u32) static_cast<const KeyEvent&>(event).key(),
-                static_cast<const KeyEvent&>(event).modifiers()));
+                static_cast<const KeyEvent&>(event).modifiers(),
+                (u32) static_cast<const KeyEvent&>(event).scancode()));
         break;
     case Event::KeyUp:
         m_client->post_message(
             Messages::WindowClient::KeyUp(m_window_id,
                 (u8) static_cast<const KeyEvent&>(event).character(),
                 (u32) static_cast<const KeyEvent&>(event).key(),
-                static_cast<const KeyEvent&>(event).modifiers()));
+                static_cast<const KeyEvent&>(event).modifiers(),
+                (u32) static_cast<const KeyEvent&>(event).scancode()));
         break;
     case Event::WindowActivated:
         m_client->post_message(Messages::WindowClient::WindowActivated(m_window_id));

Services/WindowServer/WindowClient.ipc

@@ -8,8 +8,8 @@ endpoint WindowClient = 4
     MouseWheel(i32 window_id, Gfx::Point mouse_position, u32 button, u32 buttons, u32 modifiers, i32 wheel_delta) =|
     WindowEntered(i32 window_id) =|
     WindowLeft(i32 window_id) =|
-    KeyDown(i32 window_id, u8 character, u32 key, u32 modifiers) =|
-    KeyUp(i32 window_id, u8 character, u32 key, u32 modifiers) =|
+    KeyDown(i32 window_id, u8 character, u32 key, u32 modifiers, u32 scancode) =|
+    KeyUp(i32 window_id, u8 character, u32 key, u32 modifiers, u32 scancode) =|
     WindowActivated(i32 window_id) =|
     WindowDeactivated(i32 window_id) =|
     WindowStateChanged(i32 window_id, bool minimized, bool occluded) =|