/**************************************************************************/ /* freedesktop_portal_desktop.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 "freedesktop_portal_desktop.h" #ifdef DBUS_ENABLED #include "core/error/error_macros.h" #include "core/os/os.h" #include "core/string/ustring.h" #ifdef SOWRAP_ENABLED #include "dbus-so_wrap.h" #else #include #endif #include "core/variant/variant.h" #define BUS_OBJECT_NAME "org.freedesktop.portal.Desktop" #define BUS_OBJECT_PATH "/org/freedesktop/portal/desktop" #define BUS_INTERFACE_SETTINGS "org.freedesktop.portal.Settings" static bool try_parse_variant(DBusMessage *p_reply_message, int p_type, void *r_value) { DBusMessageIter iter[3]; dbus_message_iter_init(p_reply_message, &iter[0]); if (dbus_message_iter_get_arg_type(&iter[0]) != DBUS_TYPE_VARIANT) { return false; } dbus_message_iter_recurse(&iter[0], &iter[1]); if (dbus_message_iter_get_arg_type(&iter[1]) != DBUS_TYPE_VARIANT) { return false; } dbus_message_iter_recurse(&iter[1], &iter[2]); if (dbus_message_iter_get_arg_type(&iter[2]) != p_type) { return false; } dbus_message_iter_get_basic(&iter[2], r_value); return true; } bool FreeDesktopPortalDesktop::read_setting(const char *p_namespace, const char *p_key, int p_type, void *r_value) { if (unsupported) { return false; } DBusError error; dbus_error_init(&error); DBusConnection *bus = dbus_bus_get(DBUS_BUS_SESSION, &error); if (dbus_error_is_set(&error)) { dbus_error_free(&error); unsupported = true; if (OS::get_singleton()->is_stdout_verbose()) { ERR_PRINT(String() + "Error opening D-Bus connection: " + error.message); } return false; } DBusMessage *message = dbus_message_new_method_call( BUS_OBJECT_NAME, BUS_OBJECT_PATH, BUS_INTERFACE_SETTINGS, "Read"); dbus_message_append_args( message, DBUS_TYPE_STRING, &p_namespace, DBUS_TYPE_STRING, &p_key, DBUS_TYPE_INVALID); DBusMessage *reply = dbus_connection_send_with_reply_and_block(bus, message, 50, &error); dbus_message_unref(message); if (dbus_error_is_set(&error)) { dbus_error_free(&error); dbus_connection_unref(bus); if (OS::get_singleton()->is_stdout_verbose()) { ERR_PRINT(String() + "Error on D-Bus communication: " + error.message); } return false; } bool success = try_parse_variant(reply, p_type, r_value); dbus_message_unref(reply); dbus_connection_unref(bus); return success; } uint32_t FreeDesktopPortalDesktop::get_appearance_color_scheme() { if (unsupported) { return 0; } uint32_t value = 0; read_setting("org.freedesktop.appearance", "color-scheme", DBUS_TYPE_UINT32, &value); return value; } FreeDesktopPortalDesktop::FreeDesktopPortalDesktop() { #ifdef SOWRAP_ENABLED #ifdef DEBUG_ENABLED int dylibloader_verbose = 1; #else int dylibloader_verbose = 0; #endif unsupported = (initialize_dbus(dylibloader_verbose) != 0); #else unsupported = false; #endif if (unsupported) { return; } bool ver_ok = false; int version_major = 0; int version_minor = 0; int version_rev = 0; dbus_get_version(&version_major, &version_minor, &version_rev); ver_ok = (version_major == 1 && version_minor >= 10) || (version_major > 1); // 1.10.0 print_verbose(vformat("PortalDesktop: DBus %d.%d.%d detected.", version_major, version_minor, version_rev)); if (!ver_ok) { print_verbose("PortalDesktop: Unsupported DBus library version!"); unsupported = true; } } #endif // DBUS_ENABLED