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										 |  |  | /**************************************************************************/ | 
					
						
							|  |  |  | /*  display_server_web.h                                                  */ | 
					
						
							|  |  |  | /**************************************************************************/ | 
					
						
							|  |  |  | /*                         This file is part of:                          */ | 
					
						
							|  |  |  | /*                             GODOT ENGINE                               */ | 
					
						
							|  |  |  | /*                        https://godotengine.org                         */ | 
					
						
							|  |  |  | /**************************************************************************/ | 
					
						
							|  |  |  | /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ | 
					
						
							|  |  |  | /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */ | 
					
						
							|  |  |  | /*                                                                        */ | 
					
						
							|  |  |  | /* Permission is hereby granted, free of charge, to any person obtaining  */ | 
					
						
							|  |  |  | /* a copy of this software and associated documentation files (the        */ | 
					
						
							|  |  |  | /* "Software"), to deal in the Software without restriction, including    */ | 
					
						
							|  |  |  | /* without limitation the rights to use, copy, modify, merge, publish,    */ | 
					
						
							|  |  |  | /* distribute, sublicense, and/or sell copies of the Software, and to     */ | 
					
						
							|  |  |  | /* permit persons to whom the Software is furnished to do so, subject to  */ | 
					
						
							|  |  |  | /* the following conditions:                                              */ | 
					
						
							|  |  |  | /*                                                                        */ | 
					
						
							|  |  |  | /* The above copyright notice and this permission notice shall be         */ | 
					
						
							|  |  |  | /* included in all copies or substantial portions of the Software.        */ | 
					
						
							|  |  |  | /*                                                                        */ | 
					
						
							|  |  |  | /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */ | 
					
						
							|  |  |  | /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */ | 
					
						
							|  |  |  | /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ | 
					
						
							|  |  |  | /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */ | 
					
						
							|  |  |  | /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */ | 
					
						
							|  |  |  | /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */ | 
					
						
							|  |  |  | /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */ | 
					
						
							|  |  |  | /**************************************************************************/ | 
					
						
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										 |  |  | #ifndef DISPLAY_SERVER_WEB_H
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							|  |  |  | #define DISPLAY_SERVER_WEB_H
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										 |  |  | 
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							|  |  |  | #include "servers/display_server.h"
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							|  |  |  | #include <emscripten.h>
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							|  |  |  | #include <emscripten/html5.h>
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										 |  |  | class DisplayServerWeb : public DisplayServer { | 
					
						
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										 |  |  | private: | 
					
						
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										 |  |  | 	struct JSTouchEvent { | 
					
						
							|  |  |  | 		uint32_t identifier[32] = { 0 }; | 
					
						
							|  |  |  | 		double coords[64] = { 0 }; | 
					
						
							|  |  |  | 	}; | 
					
						
							|  |  |  | 	JSTouchEvent touch_event; | 
					
						
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							|  |  |  | 	struct JSKeyEvent { | 
					
						
							|  |  |  | 		char code[32] = { 0 }; | 
					
						
							|  |  |  | 		char key[32] = { 0 }; | 
					
						
							|  |  |  | 		uint8_t modifiers[4] = { 0 }; | 
					
						
							|  |  |  | 	}; | 
					
						
							|  |  |  | 	JSKeyEvent key_event; | 
					
						
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										 |  |  | #ifdef GLES3_ENABLED
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							|  |  |  | 	EMSCRIPTEN_WEBGL_CONTEXT_HANDLE webgl_ctx = 0; | 
					
						
							|  |  |  | #endif
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										 |  |  | 	HashMap<int, CharString> utterance_ids; | 
					
						
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										 |  |  | 	WindowMode window_mode = WINDOW_MODE_WINDOWED; | 
					
						
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										 |  |  | 	ObjectID window_attached_instance_id = {}; | 
					
						
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										 |  |  | 	Callable rect_changed_callback; | 
					
						
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										 |  |  | 	Callable window_event_callback; | 
					
						
							|  |  |  | 	Callable input_event_callback; | 
					
						
							|  |  |  | 	Callable input_text_callback; | 
					
						
							|  |  |  | 	Callable drop_files_callback; | 
					
						
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							|  |  |  | 	String clipboard; | 
					
						
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										 |  |  | 	Point2 touches[32]; | 
					
						
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										 |  |  | 	Array voices; | 
					
						
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										 |  |  | 	char canvas_id[256] = { 0 }; | 
					
						
							|  |  |  | 	bool cursor_inside_canvas = true; | 
					
						
							|  |  |  | 	CursorShape cursor_shape = CURSOR_ARROW; | 
					
						
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										 |  |  | 	Point2i last_click_pos = Point2(-100, -100); // TODO check this again.
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										 |  |  | 	uint64_t last_click_ms = 0; | 
					
						
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										 |  |  | 	MouseButton last_click_button_index = MouseButton::NONE; | 
					
						
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										 |  |  | 	bool swap_cancel_ok = false; | 
					
						
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										 |  |  | 	// utilities
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										 |  |  | 	static void dom2godot_mod(Ref<InputEventWithModifiers> ev, int p_mod, Key p_keycode); | 
					
						
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										 |  |  | 	static const char *godot2dom_cursor(DisplayServer::CursorShape p_shape); | 
					
						
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							|  |  |  | 	// events
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										 |  |  | 	static void fullscreen_change_callback(int p_fullscreen); | 
					
						
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										 |  |  | 	static int mouse_button_callback(int p_pressed, int p_button, double p_x, double p_y, int p_modifiers); | 
					
						
							|  |  |  | 	static void mouse_move_callback(double p_x, double p_y, double p_rel_x, double p_rel_y, int p_modifiers); | 
					
						
							|  |  |  | 	static int mouse_wheel_callback(double p_delta_x, double p_delta_y); | 
					
						
							|  |  |  | 	static void touch_callback(int p_type, int p_count); | 
					
						
							|  |  |  | 	static void key_callback(int p_pressed, int p_repeat, int p_modifiers); | 
					
						
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										 |  |  | 	static void vk_input_text_callback(const char *p_text, int p_cursor); | 
					
						
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										 |  |  | 	static void gamepad_callback(int p_index, int p_connected, const char *p_id, const char *p_guid); | 
					
						
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										 |  |  | 	void process_joypads(); | 
					
						
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										 |  |  | 	static void _js_utterance_callback(int p_event, int p_id, int p_pos); | 
					
						
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							|  |  |  | 	static Vector<String> get_rendering_drivers_func(); | 
					
						
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										 |  |  | 	static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, int p_screen, Error &r_error); | 
					
						
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							|  |  |  | 	static void _dispatch_input_event(const Ref<InputEvent> &p_event); | 
					
						
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										 |  |  | 	static void request_quit_callback(); | 
					
						
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										 |  |  | 	static void window_blur_callback(); | 
					
						
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										 |  |  | 	static void update_voices_callback(int p_size, const char **p_voice); | 
					
						
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										 |  |  | 	static void update_clipboard_callback(const char *p_text); | 
					
						
							|  |  |  | 	static void send_window_event_callback(int p_notification); | 
					
						
							|  |  |  | 	static void drop_files_js_callback(char **p_filev, int p_filec); | 
					
						
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										 |  |  | protected: | 
					
						
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										 |  |  | 	int get_current_video_driver() const; | 
					
						
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							|  |  |  | public: | 
					
						
							|  |  |  | 	// Override return type to make writing static callbacks less tedious.
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										 |  |  | 	static DisplayServerWeb *get_singleton(); | 
					
						
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										 |  |  | 	// utilities
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							|  |  |  | 	bool check_size_force_redraw(); | 
					
						
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										 |  |  | 	// from DisplayServer
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										 |  |  | 	virtual bool has_feature(Feature p_feature) const override; | 
					
						
							|  |  |  | 	virtual String get_name() const override; | 
					
						
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										 |  |  | 	// tts
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							|  |  |  | 	virtual bool tts_is_speaking() const override; | 
					
						
							|  |  |  | 	virtual bool tts_is_paused() const override; | 
					
						
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										 |  |  | 	virtual TypedArray<Dictionary> tts_get_voices() const override; | 
					
						
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							|  |  |  | 	virtual void tts_speak(const String &p_text, const String &p_voice, int p_volume = 50, float p_pitch = 1.f, float p_rate = 1.f, int p_utterance_id = 0, bool p_interrupt = false) override; | 
					
						
							|  |  |  | 	virtual void tts_pause() override; | 
					
						
							|  |  |  | 	virtual void tts_resume() override; | 
					
						
							|  |  |  | 	virtual void tts_stop() override; | 
					
						
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										 |  |  | 	// cursor
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										 |  |  | 	virtual void cursor_set_shape(CursorShape p_shape) override; | 
					
						
							|  |  |  | 	virtual CursorShape cursor_get_shape() const override; | 
					
						
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										 |  |  | 	virtual void cursor_set_custom_image(const Ref<Resource> &p_cursor, CursorShape p_shape = CURSOR_ARROW, const Vector2 &p_hotspot = Vector2()) override; | 
					
						
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							|  |  |  | 	// mouse
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										 |  |  | 	virtual void mouse_set_mode(MouseMode p_mode) override; | 
					
						
							|  |  |  | 	virtual MouseMode mouse_get_mode() const override; | 
					
						
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										 |  |  | 	virtual Point2i mouse_get_position() const override; | 
					
						
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							|  |  |  | 	// touch
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										 |  |  | 	virtual bool is_touchscreen_available() const override; | 
					
						
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							|  |  |  | 	// clipboard
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										 |  |  | 	virtual void clipboard_set(const String &p_text) override; | 
					
						
							|  |  |  | 	virtual String clipboard_get() const override; | 
					
						
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							|  |  |  | 	// screen
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										 |  |  | 	virtual int get_screen_count() const override; | 
					
						
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										 |  |  | 	virtual int get_primary_screen() const override; | 
					
						
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										 |  |  | 	virtual Point2i screen_get_position(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; | 
					
						
							|  |  |  | 	virtual Size2i screen_get_size(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; | 
					
						
							|  |  |  | 	virtual Rect2i screen_get_usable_rect(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; | 
					
						
							|  |  |  | 	virtual int screen_get_dpi(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; | 
					
						
							|  |  |  | 	virtual float screen_get_scale(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; | 
					
						
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										 |  |  | 	virtual float screen_get_refresh_rate(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; | 
					
						
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										 |  |  | 	virtual void virtual_keyboard_show(const String &p_existing_text, const Rect2 &p_screen_rect = Rect2(), VirtualKeyboardType p_type = KEYBOARD_TYPE_DEFAULT, int p_max_input_length = -1, int p_cursor_start = -1, int p_cursor_end = -1) override; | 
					
						
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										 |  |  | 	virtual void virtual_keyboard_hide() override; | 
					
						
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										 |  |  | 	// windows
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										 |  |  | 	virtual Vector<DisplayServer::WindowID> get_window_list() const override; | 
					
						
							|  |  |  | 	virtual WindowID get_window_at_screen_position(const Point2i &p_position) const override; | 
					
						
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										 |  |  | 	virtual void window_attach_instance_id(ObjectID p_instance, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
							|  |  |  | 	virtual ObjectID window_get_attached_instance_id(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual void window_set_rect_changed_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
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										 |  |  | 	virtual void window_set_window_event_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
							|  |  |  | 	virtual void window_set_input_event_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
							|  |  |  | 	virtual void window_set_input_text_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
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										 |  |  | 	virtual void window_set_drop_files_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
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										 |  |  | 	virtual void window_set_title(const String &p_title, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
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										 |  |  | 	virtual int window_get_current_screen(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
							|  |  |  | 	virtual void window_set_current_screen(int p_screen, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
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										 |  |  | 	virtual Point2i window_get_position(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual Point2i window_get_position_with_decorations(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual void window_set_position(const Point2i &p_position, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
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										 |  |  | 	virtual void window_set_transient(WindowID p_window, WindowID p_parent) override; | 
					
						
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										 |  |  | 	virtual void window_set_max_size(const Size2i p_size, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
							|  |  |  | 	virtual Size2i window_get_max_size(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual void window_set_min_size(const Size2i p_size, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
							|  |  |  | 	virtual Size2i window_get_min_size(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual void window_set_size(const Size2i p_size, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
							|  |  |  | 	virtual Size2i window_get_size(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual Size2i window_get_size_with_decorations(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual void window_set_mode(WindowMode p_mode, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
							|  |  |  | 	virtual WindowMode window_get_mode(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual bool window_is_maximize_allowed(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual void window_set_flag(WindowFlags p_flag, bool p_enabled, WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
							|  |  |  | 	virtual bool window_get_flag(WindowFlags p_flag, WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual void window_request_attention(WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
							|  |  |  | 	virtual void window_move_to_foreground(WindowID p_window = MAIN_WINDOW_ID) override; | 
					
						
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										 |  |  | 	virtual bool window_can_draw(WindowID p_window = MAIN_WINDOW_ID) const override; | 
					
						
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										 |  |  | 	virtual bool can_any_window_draw() const override; | 
					
						
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							|  |  |  | 	// events
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										 |  |  | 	virtual void process_events() override; | 
					
						
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							|  |  |  | 	// icon
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										 |  |  | 	virtual void set_icon(const Ref<Image> &p_icon) override; | 
					
						
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							|  |  |  | 	// others
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										 |  |  | 	virtual bool get_swap_cancel_ok() override; | 
					
						
							|  |  |  | 	virtual void swap_buffers() override; | 
					
						
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										 |  |  | 	static void register_web_driver(); | 
					
						
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										 |  |  | 	DisplayServerWeb(const String &p_rendering_driver, WindowMode p_window_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Point2i *p_position, const Size2i &p_resolution, int p_screen, Error &r_error); | 
					
						
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										 |  |  | 	~DisplayServerWeb(); | 
					
						
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										 |  |  | }; | 
					
						
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										 |  |  | #endif // DISPLAY_SERVER_WEB_H
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