godot/platform/javascript/os_javascript.h
Fabio Alessandrelli e2083871eb [HTML5] Port JavaScript inline code to libraries.
The API is implemented in javascript, and generates C functions that can
be called from godot.
This allows much cleaner code replacing all `EM_ASM` calls in our C++
code with plain C function calls.
This also gets rid of few hacks and comes with few optimizations (e.g.
custom cursor shapes should be much faster now).
2020-11-10 11:42:51 +01:00

97 lines
4.1 KiB
C++

/*************************************************************************/
/* os_javascript.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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 OS_JAVASCRIPT_H
#define OS_JAVASCRIPT_H
#include "audio_driver_javascript.h"
#include "core/input/input.h"
#include "drivers/unix/os_unix.h"
#include "servers/audio_server.h"
#include <emscripten/html5.h>
class OS_JavaScript : public OS_Unix {
MainLoop *main_loop = nullptr;
AudioDriverJavaScript *audio_driver_javascript = nullptr;
bool idb_is_syncing = false;
bool idb_available = false;
bool idb_needs_sync = false;
static void main_loop_callback();
static void file_access_close_callback(const String &p_file, int p_flags);
static void fs_sync_callback();
protected:
void initialize() override;
void set_main_loop(MainLoop *p_main_loop) override;
void delete_main_loop() override;
void finalize() override;
bool _check_internal_feature_support(const String &p_feature) override;
public:
// Override return type to make writing static callbacks less tedious.
static OS_JavaScript *get_singleton();
void initialize_joypads() override;
MainLoop *get_main_loop() const override;
bool main_loop_iterate();
Error execute(const String &p_path, const List<String> &p_arguments, bool p_blocking = true, ProcessID *r_child_id = nullptr, String *r_pipe = nullptr, int *r_exitcode = nullptr, bool read_stderr = false, Mutex *p_pipe_mutex = nullptr) override;
Error kill(const ProcessID &p_pid) override;
int get_process_id() const override;
String get_executable_path() const override;
Error shell_open(String p_uri) override;
String get_name() const override;
// Override default OS implementation which would block the main thread with delay_usec.
// Implemented in javascript_main.cpp loop callback instead.
void add_frame_delay(bool p_can_draw) override {}
String get_cache_path() const override;
String get_config_path() const override;
String get_data_path() const override;
String get_user_data_dir() const override;
bool is_userfs_persistent() const override;
void resume_audio();
OS_JavaScript();
};
#endif