282 lines
13 KiB
C++
282 lines
13 KiB
C++
/**************************************************************************/
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/* display_server_web.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef DISPLAY_SERVER_WEB_H
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#define DISPLAY_SERVER_WEB_H
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#include "servers/display_server.h"
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#include "godot_js.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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// No need to register with GDCLASS, it's platform-specific and nothing is added.
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private:
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struct JSTouchEvent {
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uint32_t identifier[32] = { 0 };
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double coords[64] = { 0 };
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};
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JSTouchEvent touch_event;
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struct JSKeyEvent {
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char code[32] = { 0 };
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char key[32] = { 0 };
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uint8_t modifiers[4] = { 0 };
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};
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JSKeyEvent key_event;
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#ifdef GLES3_ENABLED
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EMSCRIPTEN_WEBGL_CONTEXT_HANDLE webgl_ctx = 0;
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#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;
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Callable input_event_callback;
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Callable input_text_callback;
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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 };
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bool cursor_inside_canvas = true;
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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 ime_active = false;
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bool ime_started = false;
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String ime_text;
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Vector2i ime_selection;
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struct KeyEvent {
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bool pressed = false;
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bool echo = false;
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bool raw = false;
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Key keycode = Key::NONE;
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Key physical_keycode = Key::NONE;
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Key key_label = Key::NONE;
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uint32_t unicode = 0;
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int mod = 0;
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};
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Vector<KeyEvent> key_event_buffer;
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int key_event_pos = 0;
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bool swap_cancel_ok = false;
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bool tts = 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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WASM_EXPORT static void fullscreen_change_callback(int p_fullscreen);
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static void _fullscreen_change_callback(int p_fullscreen);
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WASM_EXPORT static int mouse_button_callback(int p_pressed, int p_button, double p_x, double p_y, int p_modifiers);
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static int _mouse_button_callback(int p_pressed, int p_button, double p_x, double p_y, int p_modifiers);
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WASM_EXPORT static void mouse_move_callback(double p_x, double p_y, double p_rel_x, double p_rel_y, int p_modifiers);
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static void _mouse_move_callback(double p_x, double p_y, double p_rel_x, double p_rel_y, int p_modifiers);
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WASM_EXPORT static int mouse_wheel_callback(double p_delta_x, double p_delta_y);
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static int _mouse_wheel_callback(double p_delta_x, double p_delta_y);
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WASM_EXPORT static void touch_callback(int p_type, int p_count);
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static void _touch_callback(int p_type, int p_count);
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WASM_EXPORT static void key_callback(int p_pressed, int p_repeat, int p_modifiers);
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static void _key_callback(const String &p_key_event_code, const String &p_key_event_key, int p_pressed, int p_repeat, int p_modifiers);
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WASM_EXPORT static void vk_input_text_callback(const char *p_text, int p_cursor);
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static void _vk_input_text_callback(const String &p_text, int p_cursor);
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WASM_EXPORT static void gamepad_callback(int p_index, int p_connected, const char *p_id, const char *p_guid);
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static void _gamepad_callback(int p_index, int p_connected, const String &p_id, const String &p_guid);
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WASM_EXPORT static void js_utterance_callback(int p_event, int p_id, int p_pos);
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static void _js_utterance_callback(int p_event, int p_id, int p_pos);
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WASM_EXPORT static void ime_callback(int p_type, const char *p_text);
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static void _ime_callback(int p_type, const String &p_text);
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WASM_EXPORT static void request_quit_callback();
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static void _request_quit_callback();
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WASM_EXPORT static void window_blur_callback();
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static void _window_blur_callback();
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WASM_EXPORT static void update_voices_callback(int p_size, const char **p_voice);
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static void _update_voices_callback(const Vector<String> &p_voices);
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WASM_EXPORT static void update_clipboard_callback(const char *p_text);
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static void _update_clipboard_callback(const String &p_text);
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WASM_EXPORT static void send_window_event_callback(int p_notification);
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static void _send_window_event_callback(int p_notification);
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WASM_EXPORT static void drop_files_js_callback(const char **p_filev, int p_filec);
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static void _drop_files_js_callback(const Vector<String> &p_files);
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void process_joypads();
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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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protected:
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int get_current_video_driver() const;
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public:
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// 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;
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virtual String get_name() const override;
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// tts
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virtual bool tts_is_speaking() const override;
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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;
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virtual void tts_pause() override;
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virtual void tts_resume() override;
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virtual void tts_stop() override;
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// cursor
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virtual void cursor_set_shape(CursorShape p_shape) override;
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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;
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virtual MouseMode mouse_get_mode() const override;
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virtual Point2i mouse_get_position() const override;
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// ime
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virtual void window_set_ime_active(const bool p_active, WindowID p_window = MAIN_WINDOW_ID) override;
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virtual void window_set_ime_position(const Point2i &p_pos, WindowID p_window = MAIN_WINDOW_ID) override;
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virtual Point2i ime_get_selection() const override;
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virtual String ime_get_text() 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;
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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;
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virtual Size2i screen_get_size(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
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virtual Rect2i screen_get_usable_rect(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
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virtual int screen_get_dpi(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
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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;
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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;
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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;
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virtual void window_set_input_event_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override;
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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;
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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;
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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;
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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;
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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;
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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;
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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;
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virtual void window_move_to_foreground(WindowID p_window = MAIN_WINDOW_ID) override;
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virtual bool window_is_focused(WindowID p_window = MAIN_WINDOW_ID) const 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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virtual DisplayServer::VSyncMode window_get_vsync_mode(WindowID p_vsync_mode) 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;
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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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