/*************************************************************************/ /* display_server_web.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* 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. */ /*************************************************************************/ #ifndef DISPLAY_SERVER_WEB_H #define DISPLAY_SERVER_WEB_H #include "servers/display_server.h" #include <emscripten.h> #include <emscripten/html5.h> class DisplayServerWeb : public DisplayServer { private: struct JSTouchEvent { uint32_t identifier[32] = { 0 }; double coords[64] = { 0 }; }; JSTouchEvent touch_event; struct JSKeyEvent { char code[32] = { 0 }; char key[32] = { 0 }; uint8_t modifiers[4] = { 0 }; }; JSKeyEvent key_event; #ifdef GLES3_ENABLED EMSCRIPTEN_WEBGL_CONTEXT_HANDLE webgl_ctx = 0; #endif HashMap<int, CharString> utterance_ids; WindowMode window_mode = WINDOW_MODE_WINDOWED; ObjectID window_attached_instance_id = {}; Callable rect_changed_callback; Callable window_event_callback; Callable input_event_callback; Callable input_text_callback; Callable drop_files_callback; String clipboard; Point2 touches[32]; Array voices; char canvas_id[256] = { 0 }; bool cursor_inside_canvas = true; CursorShape cursor_shape = CURSOR_ARROW; Point2i last_click_pos = Point2(-100, -100); // TODO check this again. uint64_t last_click_ms = 0; MouseButton last_click_button_index = MouseButton::NONE; bool swap_cancel_ok = false; // utilities static void dom2godot_mod(Ref<InputEventWithModifiers> ev, int p_mod); static const char *godot2dom_cursor(DisplayServer::CursorShape p_shape); // events static void fullscreen_change_callback(int p_fullscreen); 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); static void vk_input_text_callback(const char *p_text, int p_cursor); static void gamepad_callback(int p_index, int p_connected, const char *p_id, const char *p_guid); void process_joypads(); static void _js_utterance_callback(int p_event, int p_id, int p_pos); static Vector<String> get_rendering_drivers_func(); 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, Error &r_error); static void _dispatch_input_event(const Ref<InputEvent> &p_event); static void request_quit_callback(); static void window_blur_callback(); static void update_voices_callback(int p_size, const char **p_voice); 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); protected: int get_current_video_driver() const; public: // Override return type to make writing static callbacks less tedious. static DisplayServerWeb *get_singleton(); // utilities bool check_size_force_redraw(); // from DisplayServer virtual bool has_feature(Feature p_feature) const override; virtual String get_name() const override; // tts virtual bool tts_is_speaking() const override; virtual bool tts_is_paused() const override; virtual TypedArray<Dictionary> tts_get_voices() const override; 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; // cursor virtual void cursor_set_shape(CursorShape p_shape) override; virtual CursorShape cursor_get_shape() const override; virtual void cursor_set_custom_image(const Ref<Resource> &p_cursor, CursorShape p_shape = CURSOR_ARROW, const Vector2 &p_hotspot = Vector2()) override; // mouse virtual void mouse_set_mode(MouseMode p_mode) override; virtual MouseMode mouse_get_mode() const override; virtual Point2i mouse_get_position() const override; // touch virtual bool screen_is_touchscreen(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; // clipboard virtual void clipboard_set(const String &p_text) override; virtual String clipboard_get() const override; // screen virtual int get_screen_count() const override; 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; virtual float screen_get_refresh_rate(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; 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; virtual void virtual_keyboard_hide() override; // windows virtual Vector<DisplayServer::WindowID> get_window_list() const override; virtual WindowID get_window_at_screen_position(const Point2i &p_position) const override; 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; virtual void window_set_rect_changed_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; 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; virtual void window_set_drop_files_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; virtual void window_set_title(const String &p_title, WindowID p_window = MAIN_WINDOW_ID) override; 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; virtual Point2i window_get_position(WindowID p_window = MAIN_WINDOW_ID) const override; virtual void window_set_position(const Point2i &p_position, WindowID p_window = MAIN_WINDOW_ID) override; virtual void window_set_transient(WindowID p_window, WindowID p_parent) override; 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; 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; 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; virtual Size2i window_get_real_size(WindowID p_window = MAIN_WINDOW_ID) const override; 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; virtual bool window_is_maximize_allowed(WindowID p_window = MAIN_WINDOW_ID) const override; 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; 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; virtual bool window_can_draw(WindowID p_window = MAIN_WINDOW_ID) const override; virtual bool can_any_window_draw() const override; // events virtual void process_events() override; // icon virtual void set_icon(const Ref<Image> &p_icon) override; // others virtual bool get_swap_cancel_ok() override; virtual void swap_buffers() override; static void register_web_driver(); 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, Error &r_error); ~DisplayServerWeb(); }; #endif // DISPLAY_SERVER_WEB_H