Sdk/Canvas: Add basic keyboard handler

SDK/include/NDK/BaseWidget.hpp

@@ -45,6 +45,8 @@ namespace Ndk
 			inline const Nz::Vector2f& GetContentSize() const;
 			inline Nz::Vector2f GetSize() const;
 
+			void GrabKeyboard();
+
 			virtual void ResizeToContent() = 0;
 
 			inline void SetContentSize(const Nz::Vector2f& size);
@@ -73,6 +75,7 @@ namespace Ndk
 			virtual void OnMouseButtonPress(int x, int y, Nz::Mouse::Button button);
 			virtual void OnMouseButtonRelease(int x, int y, Nz::Mouse::Button button);
 			virtual void OnMouseExit();
+			virtual void OnTextEntered(char32_t character, bool repeated);
 
 		private:
 			inline BaseWidget();

SDK/include/NDK/Canvas.hpp

@@ -36,7 +36,11 @@ namespace Ndk
 			void Layout() override;
 
 			void NotifyWidgetUpdate(std::size_t index);
+			
 			std::size_t RegisterWidget(BaseWidget* widget);
+
+			inline void SetKeyboardOwner(BaseWidget* widget);
+
 			void UnregisterWidget(std::size_t index);
 
 		private:
@@ -44,7 +48,8 @@ namespace Ndk
 			void OnMouseButtonRelease(const Nz::EventHandler* eventHandler, const Nz::WindowEvent::MouseButtonEvent& event);
 			void OnMouseMoved(const Nz::EventHandler* eventHandler, const Nz::WindowEvent::MouseMoveEvent& event);
 			void OnMouseLeft(const Nz::EventHandler* eventHandler);
-		
+			void OnTextEntered(const Nz::EventHandler* eventHandler, const Nz::WindowEvent::TextEvent& event);
+
 			struct WidgetBox
 			{
 				BaseWidget* widget;
@@ -55,9 +60,11 @@ namespace Ndk
 			NazaraSlot(Nz::EventHandler, OnMouseButtonReleased, m_mouseButtonReleasedSlot);
 			NazaraSlot(Nz::EventHandler, OnMouseMoved, m_mouseMovedSlot);
 			NazaraSlot(Nz::EventHandler, OnMouseLeft, m_mouseLeftSlot);
+			NazaraSlot(Nz::EventHandler, OnTextEntered, m_textEnteredSlot);
 
 			std::vector<WidgetBox> m_widgetBoxes;
 			const WidgetBox* m_hoveredWidget;
+			BaseWidget* m_keyboardOwner;
 			WorldHandle m_world;
 	};
 }

SDK/include/NDK/Canvas.inl

@@ -8,6 +8,7 @@ namespace Ndk
 {
 	inline Canvas::Canvas(WorldHandle world, Nz::EventHandler& eventHandler) :
 	m_hoveredWidget(nullptr),
+	m_keyboardOwner(nullptr),
 	m_world(std::move(world))
 	{
 		m_canvas = this;
@@ -16,10 +17,16 @@ namespace Ndk
 		m_mouseButtonReleasedSlot.Connect(eventHandler.OnMouseButtonReleased, this, &Canvas::OnMouseButtonRelease);
 		m_mouseMovedSlot.Connect(eventHandler.OnMouseMoved, this, &Canvas::OnMouseMoved);
 		m_mouseLeftSlot.Connect(eventHandler.OnMouseLeft, this, &Canvas::OnMouseLeft);
+		m_textEnteredSlot.Connect(eventHandler.OnTextEntered, this, &Canvas::OnTextEntered);
 	}
 
 	inline const WorldHandle& Canvas::GetWorld() const
 	{
 		return m_world;
 	}
+
+	inline void Ndk::Canvas::SetKeyboardOwner(BaseWidget* widget)
+	{
+		m_keyboardOwner = widget;
+	}
 }

SDK/src/NDK/BaseWidget.cpp

@@ -71,6 +71,11 @@ namespace Ndk
 		m_entities.erase(it);
 	}
 
+	void BaseWidget::GrabKeyboard()
+	{
+		m_canvas->SetKeyboardOwner(this);
+	}
+
 	void BaseWidget::Layout()
 	{
 		if (m_canvas)
@@ -112,4 +117,8 @@ namespace Ndk
 	void BaseWidget::OnMouseExit()
 	{
 	}
+
+	void BaseWidget::OnTextEntered(char32_t character, bool repeated)
+	{
+	}
 }

SDK/src/NDK/Canvas.cpp

@@ -57,6 +57,9 @@ namespace Ndk
 			if (m_hoveredWidget == &entry)
 				m_hoveredWidget = nullptr;
 
+			if (m_keyboardOwner == entry.widget)
+				m_keyboardOwner = nullptr;
+
 			entry = std::move(lastEntry);
 			entry.widget->UpdateCanvasIndex(index);
 			m_widgetBoxes.pop_back();
@@ -136,4 +139,10 @@ namespace Ndk
 			m_hoveredWidget = nullptr;
 		}
 	}
+
+	void Canvas::OnTextEntered(const Nz::EventHandler* eventHandler, const Nz::WindowEvent::TextEvent& event)
+	{
+		if (m_keyboardOwner)
+			m_keyboardOwner->OnTextEntered(event.character, event.repeated);
+	}
 }