godot/platform/web/os_web.cpp

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/**************************************************************************/
/* os_web.cpp */
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/**************************************************************************/
/* 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 "core/config/project_settings.h"
#include "core/debugger/engine_debugger.h"
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#include "drivers/unix/dir_access_unix.h"
#include "drivers/unix/file_access_unix.h"
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#include "main/main.h"
#include "modules/modules_enabled.gen.h" // For websocket.
#include <dlfcn.h>
#include <emscripten.h>
#include <stdlib.h>
void OS_Web::alert(const String &p_alert, const String &p_title) {
godot_js_display_alert(p_alert.utf8().get_data());
}
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// Lifecycle
void OS_Web::initialize() {
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OS_Unix::initialize_core();
DisplayServerWeb::register_web_driver();
}
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void OS_Web::resume_audio() {
AudioDriverWeb::resume();
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}
void OS_Web::set_main_loop(MainLoop *p_main_loop) {
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main_loop = p_main_loop;
}
MainLoop *OS_Web::get_main_loop() const {
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return main_loop;
}
void OS_Web::fs_sync_callback() {
get_singleton()->idb_is_syncing = false;
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}
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();
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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();
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}
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// Miscellaneous
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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 {
ERR_FAIL_V_MSG(0, "OS::get_process_id() is not available on the Web platform.");
}
bool OS_Web::is_process_running(const ProcessID &p_pid) const {
return false;
}
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int OS_Web::get_process_exit_code(const ProcessID &p_pid) const {
return -1;
}
int OS_Web::get_processor_count() const {
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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.");
}
bool OS_Web::_check_internal_feature_support(const String &p_feature) {
if (p_feature == "web") {
return true;
}
if (godot_js_os_has_feature(p_feature.utf8().get_data())) {
return true;
}
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return false;
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}
String OS_Web::get_executable_path() const {
return OS::get_executable_path();
}
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Error OS_Web::shell_open(const String &p_uri) {
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// Open URI in a new tab, browser will deal with it by protocol.
godot_js_os_shell_open(p_uri.utf8().get_data());
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return OK;
}
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String OS_Web::get_name() const {
return "Web";
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}
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void OS_Web::add_frame_delay(bool p_can_draw) {
#ifndef PROXY_TO_PTHREAD_ENABLED
OS::add_frame_delay(p_can_draw);
#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 userfs = "/userfs";
String appname = get_safe_dir_name(GLOBAL_GET("application/config/name"));
if (!appname.is_empty()) {
bool use_custom_dir = GLOBAL_GET("application/config/use_custom_user_dir");
if (use_custom_dir) {
String custom_dir = get_safe_dir_name(GLOBAL_GET("application/config/custom_user_dir_name"), true);
if (custom_dir.is_empty()) {
custom_dir = appname;
}
return userfs.path_join(custom_dir).replace("\\", "/");
} else {
return userfs.path_join(get_godot_dir_name()).path_join("app_userdata").path_join(appname).replace("\\", "/");
}
}
return userfs.path_join(get_godot_dir_name()).path_join("app_userdata").path_join("[unnamed project]");
}
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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";
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}
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;
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}
}
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 {
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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() {
}
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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));
}
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)));
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FileAccessUnix::close_notification_func = file_access_close_callback;
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}