Initial commit

WindowServer/WindowServer.h

@@ -0,0 +1,114 @@
+#pragma once
+
+#include "Framebuffer.h"
+#include "Utils.h"
+#include "Window.h"
+
+#include <BAN/Array.h>
+#include <BAN/Function.h>
+#include <BAN/Iteration.h>
+#include <BAN/Vector.h>
+#include <BAN/HashMap.h>
+
+#include <LibFont/Font.h>
+#include <LibGUI/Window.h>
+#include <LibImage/Image.h>
+#include <LibInput/KeyEvent.h>
+#include <LibInput/MouseEvent.h>
+
+class WindowServer
+{
+public:
+	struct ClientData
+	{
+		size_t packet_buffer_nread = 0;
+		BAN::Vector<uint8_t> packet_buffer;
+	};
+
+public:
+	WindowServer(Framebuffer& framebuffer, int32_t corner_radius);
+
+	BAN::ErrorOr<void> set_background_image(BAN::UniqPtr<LibImage::Image>);
+
+	void on_window_create(int fd, const LibGUI::WindowPacket::WindowCreate&);
+	void on_window_invalidate(int fd, const LibGUI::WindowPacket::WindowInvalidate&);
+	void on_window_set_position(int fd, const LibGUI::WindowPacket::WindowSetPosition&);
+	void on_window_set_attributes(int fd, const LibGUI::WindowPacket::WindowSetAttributes&);
+	void on_window_set_mouse_relative(int fd, const LibGUI::WindowPacket::WindowSetMouseRelative&);
+	void on_window_set_size(int fd, const LibGUI::WindowPacket::WindowSetSize&);
+	void on_window_set_min_size(int fd, const LibGUI::WindowPacket::WindowSetMinSize&);
+	void on_window_set_max_size(int fd, const LibGUI::WindowPacket::WindowSetMaxSize&);
+	void on_window_set_fullscreen(int fd, const LibGUI::WindowPacket::WindowSetFullscreen&);
+	void on_window_set_title(int fd, const LibGUI::WindowPacket::WindowSetTitle&);
+	void on_window_set_cursor(int fd, const LibGUI::WindowPacket::WindowSetCursor&);
+
+	void on_key_event(LibInput::KeyEvent event);
+	void on_mouse_button(LibInput::MouseButtonEvent event);
+	void on_mouse_move(LibInput::MouseMoveEvent event);
+	void on_mouse_move_abs(LibInput::MouseMoveAbsEvent event);
+	void on_mouse_scroll(LibInput::MouseScrollEvent event);
+
+	void set_focused_window(BAN::RefPtr<Window> window);
+	void invalidate(Rectangle area);
+	void invalidate_impl(Rectangle area);
+	void sync();
+
+	Rectangle cursor_area() const;
+	Rectangle resize_area(Position cursor) const;
+
+	void add_client_fd(int fd);
+	void remove_client_fd(int fd);
+	ClientData& get_client_data(int fd);
+
+	bool is_stopped() const { return m_is_stopped; }
+	void stop() { m_is_stopped = true; }
+
+private:
+	void on_mouse_move_impl(int32_t new_x, int32_t new_y);
+
+	void mark_pending_sync(Rectangle area);
+
+	bool resize_window(BAN::RefPtr<Window> window, uint32_t width, uint32_t height) const;
+
+	BAN::RefPtr<Window> find_window_with_fd(int fd) const;
+	BAN::RefPtr<Window> find_hovered_window() const;
+
+private:
+	enum class State
+	{
+		Normal,
+		Fullscreen,
+		Moving,
+		Resizing,
+	};
+
+private:
+	Framebuffer& m_framebuffer;
+	BAN::Vector<BAN::RefPtr<Window>> m_client_windows;
+
+	BAN::HashMap<int, ClientData> m_client_data;
+
+	const int32_t m_corner_radius;
+
+	Rectangle m_dirty_rect;
+
+	BAN::UniqPtr<LibImage::Image> m_background_image;
+
+	State m_state { State::Normal };
+	bool m_is_mod_key_held { false };
+	BAN::RefPtr<Window> m_focused_window;
+	BAN::Array<BAN::RefPtr<Window>, 5> m_mouse_button_windows;
+	Position m_cursor;
+
+	Rectangle m_non_full_screen_rect;
+
+	uint8_t m_resize_quadrant { 0 };
+	Position m_resize_start;
+
+	bool m_is_mouse_relative { false };
+
+	bool m_is_stopped { false };
+	bool m_is_bouncing_window = false;
+
+	LibFont::Font m_font;
+};