initial commit, 4.5 stable

platform/web/os_web.cpp

@@ -0,0 +1,318 @@
+/**************************************************************************/
+/*  os_web.cpp                                                            */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* 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_web.h"
+
+#include "api/javascript_bridge_singleton.h"
+#include "display_server_web.h"
+#include "godot_js.h"
+#include "ip_web.h"
+#include "net_socket_web.h"
+
+#include "core/config/project_settings.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 "modules/modules_enabled.gen.h" // For websocket.
+
+#include <dlfcn.h>
+#include <emscripten.h>
+#include <cstdlib>
+
+void OS_Web::alert(const String &p_alert, const String &p_title) {
+	godot_js_display_alert(p_alert.utf8().get_data());
+}
+
+// Lifecycle
+void OS_Web::initialize() {
+	OS_Unix::initialize_core();
+	IPWeb::make_default();
+	NetSocketWeb::make_default();
+	DisplayServerWeb::register_web_driver();
+}
+
+void OS_Web::resume_audio() {
+	AudioDriverWeb::resume();
+}
+
+void OS_Web::set_main_loop(MainLoop *p_main_loop) {
+	main_loop = p_main_loop;
+}
+
+MainLoop *OS_Web::get_main_loop() const {
+	return main_loop;
+}
+
+void OS_Web::fs_sync_callback() {
+	get_singleton()->idb_is_syncing = false;
+}
+
+bool OS_Web::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_Web::delete_main_loop() {
+	if (main_loop) {
+		memdelete(main_loop);
+	}
+	main_loop = nullptr;
+}
+
+void OS_Web::finalize() {
+	delete_main_loop();
+	for (AudioDriverWeb *driver : audio_drivers) {
+		memdelete(driver);
+	}
+	audio_drivers.clear();
+}
+
+// Miscellaneous
+
+Error OS_Web::execute(const String &p_path, const List<String> &p_arguments, String *r_pipe, int *r_exitcode, bool read_stderr, Mutex *p_pipe_mutex, bool p_open_console) {
+	return create_process(p_path, p_arguments);
+}
+
+Dictionary OS_Web::execute_with_pipe(const String &p_path, const List<String> &p_arguments, bool p_blocking) {
+	ERR_FAIL_V_MSG(Dictionary(), "OS::execute_with_pipe is not available on the Web platform.");
+}
+
+Error OS_Web::create_process(const String &p_path, const List<String> &p_arguments, ProcessID *r_child_id, bool p_open_console) {
+	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 Web via 'engine.setOnExecute' if required.");
+	return OK;
+}
+
+Error OS_Web::kill(const ProcessID &p_pid) {
+	ERR_FAIL_V_MSG(ERR_UNAVAILABLE, "OS::kill() is not available on the Web platform.");
+}
+
+int OS_Web::get_process_id() const {
+	return 0;
+}
+
+bool OS_Web::is_process_running(const ProcessID &p_pid) const {
+	return false;
+}
+
+int OS_Web::get_process_exit_code(const ProcessID &p_pid) const {
+	return -1;
+}
+
+int OS_Web::get_processor_count() const {
+	return godot_js_os_hw_concurrency_get();
+}
+
+String OS_Web::get_unique_id() const {
+	ERR_FAIL_V_MSG("", "OS::get_unique_id() is not available on the Web platform.");
+}
+
+int OS_Web::get_default_thread_pool_size() const {
+#ifdef THREADS_ENABLED
+	return godot_js_os_thread_pool_size_get();
+#else // No threads.
+	return 1;
+#endif
+}
+
+bool OS_Web::_check_internal_feature_support(const String &p_feature) {
+	if (p_feature == "web") {
+		return true;
+	}
+
+	if (p_feature == "web_extensions") {
+#ifdef WEB_DLINK_ENABLED
+		return true;
+#else
+		return false;
+#endif
+	}
+	if (p_feature == "web_noextensions") {
+#ifdef WEB_DLINK_ENABLED
+		return false;
+#else
+		return true;
+#endif
+	}
+
+	if (godot_js_os_has_feature(p_feature.utf8().get_data())) {
+		return true;
+	}
+	return false;
+}
+
+String OS_Web::get_executable_path() const {
+	return OS::get_executable_path();
+}
+
+Error OS_Web::shell_open(const 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_Web::get_name() const {
+	return "Web";
+}
+
+void OS_Web::add_frame_delay(bool p_can_draw, bool p_wake_for_events) {
+#ifndef PROXY_TO_PTHREAD_ENABLED
+	OS::add_frame_delay(p_can_draw, p_wake_for_events);
+#endif
+}
+
+void OS_Web::vibrate_handheld(int p_duration_ms, float p_amplitude) {
+	godot_js_input_vibrate_handheld(p_duration_ms);
+}
+
+String OS_Web::get_user_data_dir(const String &p_user_dir) const {
+	String userfs = "/userfs";
+	return userfs.path_join(p_user_dir).replace_char('\\', '/');
+}
+
+String OS_Web::get_cache_path() const {
+	return "/home/web_user/.cache";
+}
+
+String OS_Web::get_config_path() const {
+	return "/home/web_user/.config";
+}
+
+String OS_Web::get_data_path() const {
+	return "/home/web_user/.local/share";
+}
+
+void OS_Web::file_access_close_callback(const String &p_file, int p_flags) {
+	OS_Web *os = OS_Web::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;
+	}
+}
+
+void OS_Web::dir_access_remove_callback(const String &p_file) {
+	OS_Web *os = OS_Web::get_singleton();
+	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;
+	}
+}
+
+void OS_Web::update_pwa_state_callback() {
+	if (OS_Web::get_singleton()) {
+		OS_Web::get_singleton()->pwa_is_waiting = true;
+	}
+	if (JavaScriptBridge::get_singleton()) {
+		JavaScriptBridge::get_singleton()->emit_signal("pwa_update_available");
+	}
+}
+
+void OS_Web::force_fs_sync() {
+	if (is_userfs_persistent()) {
+		idb_needs_sync = true;
+	}
+}
+
+Error OS_Web::pwa_update() {
+	return godot_js_pwa_update() ? FAILED : OK;
+}
+
+bool OS_Web::is_userfs_persistent() const {
+	return idb_available;
+}
+
+Error OS_Web::open_dynamic_library(const String &p_path, void *&p_library_handle, GDExtensionData *p_data) {
+	String path = p_path.get_file();
+	p_library_handle = dlopen(path.utf8().get_data(), RTLD_NOW);
+	ERR_FAIL_NULL_V_MSG(p_library_handle, ERR_CANT_OPEN, vformat("Can't open dynamic library: %s. Error: %s.", p_path, dlerror()));
+
+	if (p_data != nullptr && p_data->r_resolved_path != nullptr) {
+		*p_data->r_resolved_path = path;
+	}
+
+	return OK;
+}
+
+OS_Web *OS_Web::get_singleton() {
+	return static_cast<OS_Web *>(OS::get_singleton());
+}
+
+void OS_Web::initialize_joypads() {
+}
+
+OS_Web::OS_Web() {
+	char locale_ptr[16];
+	godot_js_config_locale_get(locale_ptr, 16);
+	setenv("LANG", locale_ptr, true);
+
+	godot_js_pwa_cb(&OS_Web::update_pwa_state_callback);
+
+	if (AudioDriverWeb::is_available()) {
+		audio_drivers.push_back(memnew(AudioDriverWorklet));
+		audio_drivers.push_back(memnew(AudioDriverScriptProcessor));
+	}
+	for (AudioDriverWeb *audio_driver : audio_drivers) {
+		AudioDriverManager::add_driver(audio_driver);
+	}
+
+	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;
+	DirAccessUnix::remove_notification_func = dir_access_remove_callback;
+}