diff options
Diffstat (limited to 'platform/javascript/display_server_javascript.h')
| -rw-r--r-- | platform/javascript/display_server_javascript.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/platform/javascript/display_server_javascript.h b/platform/javascript/display_server_javascript.h new file mode 100644 index 0000000000..ece38f1a95 --- /dev/null +++ b/platform/javascript/display_server_javascript.h @@ -0,0 +1,208 @@ +/*************************************************************************/ +/* display_server_javascript.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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_JAVASCRIPT_H +#define DISPLAY_SERVER_JAVASCRIPT_H + +#include "servers/display_server.h" + +#include <emscripten.h> +#include <emscripten/html5.h> + +class DisplayServerJavaScript : public DisplayServer { +private: + WindowMode window_mode = WINDOW_MODE_WINDOWED; + ObjectID window_attached_instance_id = {}; + + Callable window_event_callback; + Callable input_event_callback; + Callable input_text_callback; + Callable drop_files_callback; + + String clipboard; + Ref<InputEventKey> deferred_key_event; + Point2 touches[32]; + + 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. + double last_click_ms = 0; + int last_click_button_index = -1; + + bool swap_cancel_ok = false; + + // utilities + static Point2 compute_position_in_canvas(int p_x, int p_y); + static void focus_canvas(); + static bool is_canvas_focused(); + template <typename T> + static void dom2godot_mod(T *emscripten_event_ptr, Ref<InputEventWithModifiers> godot_event); + static Ref<InputEventKey> setup_key_event(const EmscriptenKeyboardEvent *emscripten_event); + static const char *godot2dom_cursor(DisplayServer::CursorShape p_shape); + + // events + static EM_BOOL fullscreen_change_callback(int p_event_type, const EmscriptenFullscreenChangeEvent *p_event, void *p_user_data); + + static EM_BOOL keydown_callback(int p_event_type, const EmscriptenKeyboardEvent *p_event, void *p_user_data); + static EM_BOOL keypress_callback(int p_event_type, const EmscriptenKeyboardEvent *p_event, void *p_user_data); + static EM_BOOL keyup_callback(int p_event_type, const EmscriptenKeyboardEvent *p_event, void *p_user_data); + + static void vk_input_text_callback(const char *p_text, int p_cursor); + + static EM_BOOL mousemove_callback(int p_event_type, const EmscriptenMouseEvent *p_event, void *p_user_data); + static EM_BOOL mouse_button_callback(int p_event_type, const EmscriptenMouseEvent *p_event, void *p_user_data); + + static EM_BOOL wheel_callback(int p_event_type, const EmscriptenWheelEvent *p_event, void *p_user_data); + + static EM_BOOL touch_press_callback(int p_event_type, const EmscriptenTouchEvent *p_event, void *p_user_data); + static EM_BOOL touchmove_callback(int p_event_type, const EmscriptenTouchEvent *p_event, void *p_user_data); + + static void gamepad_callback(int p_index, int p_connected, const char *p_id, const char *p_guid); + void process_joypads(); + + static Vector<String> get_rendering_drivers_func(); + static DisplayServer *create_func(const String &p_rendering_driver, DisplayServer::WindowMode p_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error); + + static void _dispatch_input_event(const Ref<InputEvent> &p_event); + + static void request_quit_callback(); + 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 DisplayServerJavaScript *get_singleton(); + + // utilities + bool check_size_force_redraw(); + + // from DisplayServer + void alert(const String &p_alert, const String &p_title = "ALERT!") override; + bool has_feature(Feature p_feature) const override; + String get_name() const override; + + // cursor + void cursor_set_shape(CursorShape p_shape) override; + CursorShape cursor_get_shape() const override; + void cursor_set_custom_image(const RES &p_cursor, CursorShape p_shape = CURSOR_ARROW, const Vector2 &p_hotspot = Vector2()) override; + + // mouse + void mouse_set_mode(MouseMode p_mode) override; + MouseMode mouse_get_mode() const override; + + // touch + bool screen_is_touchscreen(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; + + // clipboard + void clipboard_set(const String &p_text) override; + String clipboard_get() const override; + + // screen + int get_screen_count() const override; + Point2i screen_get_position(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; + Size2i screen_get_size(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; + Rect2i screen_get_usable_rect(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; + int screen_get_dpi(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; + float screen_get_scale(int p_screen = SCREEN_OF_MAIN_WINDOW) const override; + + void virtual_keyboard_show(const String &p_existing_text, const Rect2 &p_screen_rect = Rect2(), bool p_multiline = false, int p_max_input_length = -1, int p_cursor_start = -1, int p_cursor_end = -1) override; + void virtual_keyboard_hide() override; + + // windows + Vector<DisplayServer::WindowID> get_window_list() const override; + WindowID get_window_at_screen_position(const Point2i &p_position) const override; + + void window_attach_instance_id(ObjectID p_instance, WindowID p_window = MAIN_WINDOW_ID) override; + ObjectID window_get_attached_instance_id(WindowID p_window = MAIN_WINDOW_ID) const override; + + void window_set_rect_changed_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; + + void window_set_window_event_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; + void window_set_input_event_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; + void window_set_input_text_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; + + void window_set_drop_files_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override; + + void window_set_title(const String &p_title, WindowID p_window = MAIN_WINDOW_ID) override; + + int window_get_current_screen(WindowID p_window = MAIN_WINDOW_ID) const override; + void window_set_current_screen(int p_screen, WindowID p_window = MAIN_WINDOW_ID) override; + + Point2i window_get_position(WindowID p_window = MAIN_WINDOW_ID) const override; + void window_set_position(const Point2i &p_position, WindowID p_window = MAIN_WINDOW_ID) override; + + void window_set_transient(WindowID p_window, WindowID p_parent) override; + + void window_set_max_size(const Size2i p_size, WindowID p_window = MAIN_WINDOW_ID) override; + Size2i window_get_max_size(WindowID p_window = MAIN_WINDOW_ID) const override; + + void window_set_min_size(const Size2i p_size, WindowID p_window = MAIN_WINDOW_ID) override; + Size2i window_get_min_size(WindowID p_window = MAIN_WINDOW_ID) const override; + + void window_set_size(const Size2i p_size, WindowID p_window = MAIN_WINDOW_ID) override; + Size2i window_get_size(WindowID p_window = MAIN_WINDOW_ID) const override; + Size2i window_get_real_size(WindowID p_window = MAIN_WINDOW_ID) const override; + + void window_set_mode(WindowMode p_mode, WindowID p_window = MAIN_WINDOW_ID) override; + WindowMode window_get_mode(WindowID p_window = MAIN_WINDOW_ID) const override; + + bool window_is_maximize_allowed(WindowID p_window = MAIN_WINDOW_ID) const override; + + void window_set_flag(WindowFlags p_flag, bool p_enabled, WindowID p_window = MAIN_WINDOW_ID) override; + bool window_get_flag(WindowFlags p_flag, WindowID p_window = MAIN_WINDOW_ID) const override; + + void window_request_attention(WindowID p_window = MAIN_WINDOW_ID) override; + void window_move_to_foreground(WindowID p_window = MAIN_WINDOW_ID) override; + + bool window_can_draw(WindowID p_window = MAIN_WINDOW_ID) const override; + + bool can_any_window_draw() const override; + + // events + void process_events() override; + + // icon + void set_icon(const Ref<Image> &p_icon) override; + + // others + bool get_swap_cancel_ok() override; + void swap_buffers() override; + + static void register_javascript_driver(); + DisplayServerJavaScript(const String &p_rendering_driver, WindowMode p_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error); + ~DisplayServerJavaScript(); +}; + +#endif // DISPLAY_SERVER_JAVASCRIPT_H |