/*************************************************************************/ /* os_javascript.cpp */ /*************************************************************************/ /* 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. */ /*************************************************************************/ #include "os_javascript.h" #include "core/debugger/engine_debugger.h" #include "drivers/unix/dir_access_unix.h" #include "drivers/unix/file_access_unix.h" #include "main/main.h" #include "platform/javascript/display_server_javascript.h" #include "modules/modules_enabled.gen.h" // For websocket. #ifdef MODULE_WEBSOCKET_ENABLED #include "modules/websocket/remote_debugger_peer_websocket.h" #endif #include <dlfcn.h> #include <emscripten.h> #include <stdlib.h> #include "godot_js.h" void OS_JavaScript::alert(const String &p_alert, const String &p_title) { godot_js_display_alert(p_alert.utf8().get_data()); } // Lifecycle void OS_JavaScript::initialize() { OS_Unix::initialize_core(); DisplayServerJavaScript::register_javascript_driver(); #ifdef MODULE_WEBSOCKET_ENABLED EngineDebugger::register_uri_handler("ws://", RemoteDebuggerPeerWebSocket::create); EngineDebugger::register_uri_handler("wss://", RemoteDebuggerPeerWebSocket::create); #endif } void OS_JavaScript::resume_audio() { AudioDriverJavaScript::resume(); } void OS_JavaScript::set_main_loop(MainLoop *p_main_loop) { main_loop = p_main_loop; } MainLoop *OS_JavaScript::get_main_loop() const { return main_loop; } void OS_JavaScript::fs_sync_callback() { get_singleton()->idb_is_syncing = false; } bool OS_JavaScript::main_loop_iterate() { if (is_userfs_persistent() && idb_needs_sync && !idb_is_syncing) { idb_is_syncing = true; idb_needs_sync = false; godot_js_os_fs_sync(&fs_sync_callback); } DisplayServer::get_singleton()->process_events(); return Main::iteration(); } void OS_JavaScript::delete_main_loop() { if (main_loop) { memdelete(main_loop); } main_loop = nullptr; } void OS_JavaScript::finalize() { delete_main_loop(); for (AudioDriverJavaScript *driver : audio_drivers) { memdelete(driver); } audio_drivers.clear(); } // Miscellaneous Error OS_JavaScript::execute(const String &p_path, const List<String> &p_arguments, String *r_pipe, int *r_exitcode, bool read_stderr, Mutex *p_pipe_mutex) { return create_process(p_path, p_arguments); } Error OS_JavaScript::create_process(const String &p_path, const List<String> &p_arguments, ProcessID *r_child_id) { Array args; for (const String &E : p_arguments) { args.push_back(E); } String json_args = Variant(args).to_json_string(); int failed = godot_js_os_execute(json_args.utf8().get_data()); ERR_FAIL_COND_V_MSG(failed, ERR_UNAVAILABLE, "OS::execute() or create_process() must be implemented in JavaScript via 'engine.setOnExecute' if required."); return OK; } Error OS_JavaScript::kill(const ProcessID &p_pid) { ERR_FAIL_V_MSG(ERR_UNAVAILABLE, "OS::kill() is not available on the HTML5 platform."); } int OS_JavaScript::get_process_id() const { ERR_FAIL_V_MSG(0, "OS::get_process_id() is not available on the HTML5 platform."); } int OS_JavaScript::get_processor_count() const { return godot_js_os_hw_concurrency_get(); } bool OS_JavaScript::_check_internal_feature_support(const String &p_feature) { if (p_feature == "html5" || p_feature == "web") { return true; } #ifdef JAVASCRIPT_EVAL_ENABLED if (p_feature == "javascript") { return true; } #endif #ifndef NO_THREADS if (p_feature == "threads") { return true; } #endif #if WASM_GDNATIVE if (p_feature == "wasm32") { return true; } #endif return false; } String OS_JavaScript::get_executable_path() const { return OS::get_executable_path(); } Error OS_JavaScript::shell_open(String p_uri) { // Open URI in a new tab, browser will deal with it by protocol. godot_js_os_shell_open(p_uri.utf8().get_data()); return OK; } String OS_JavaScript::get_name() const { return "HTML5"; } String OS_JavaScript::get_user_data_dir() const { return "/userfs"; }; String OS_JavaScript::get_cache_path() const { return "/home/web_user/.cache"; } String OS_JavaScript::get_config_path() const { return "/home/web_user/.config"; } String OS_JavaScript::get_data_path() const { return "/home/web_user/.local/share"; } void OS_JavaScript::file_access_close_callback(const String &p_file, int p_flags) { OS_JavaScript *os = OS_JavaScript::get_singleton(); if (!(os->is_userfs_persistent() && (p_flags & FileAccess::WRITE))) { return; // FS persistence is not working or we are not writing. } bool is_file_persistent = p_file.begins_with("/userfs"); #ifdef TOOLS_ENABLED // Hack for editor persistence (can we track). is_file_persistent = is_file_persistent || p_file.begins_with("/home/web_user/"); #endif if (is_file_persistent) { os->idb_needs_sync = true; } } bool OS_JavaScript::is_userfs_persistent() const { return idb_available; } Error OS_JavaScript::open_dynamic_library(const String p_path, void *&p_library_handle, bool p_also_set_library_path) { String path = p_path.get_file(); p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW); ERR_FAIL_COND_V_MSG(!p_library_handle, ERR_CANT_OPEN, "Can't open dynamic library: " + p_path + ". Error: " + dlerror()); return OK; } OS_JavaScript *OS_JavaScript::get_singleton() { return static_cast<OS_JavaScript *>(OS::get_singleton()); } void OS_JavaScript::initialize_joypads() { } OS_JavaScript::OS_JavaScript() { char locale_ptr[16]; godot_js_config_locale_get(locale_ptr, 16); setenv("LANG", locale_ptr, true); if (AudioDriverJavaScript::is_available()) { #ifdef NO_THREADS audio_drivers.push_back(memnew(AudioDriverScriptProcessor)); #endif audio_drivers.push_back(memnew(AudioDriverWorklet)); } for (int i = 0; i < audio_drivers.size(); i++) { AudioDriverManager::add_driver(audio_drivers[i]); } idb_available = godot_js_os_fs_is_persistent(); Vector<Logger *> loggers; loggers.push_back(memnew(StdLogger)); _set_logger(memnew(CompositeLogger(loggers))); FileAccessUnix::close_notification_func = file_access_close_callback; }