From d9aae38bc8377f4cb99a1fbd2d92e367fcfceac6 Mon Sep 17 00:00:00 2001 From: Christian Rauch Date: Wed, 26 May 2021 20:57:32 +0100 Subject: GHOST/wayland: get cursor settings via D-Bus --- intern/ghost/CMakeLists.txt | 1 + intern/ghost/intern/GHOST_SystemWayland.cpp | 12 +- intern/ghost/intern/GHOST_WaylandCursorSettings.h | 130 ++++++++++++++++++++++ 3 files changed, 139 insertions(+), 4 deletions(-) create mode 100644 intern/ghost/intern/GHOST_WaylandCursorSettings.h (limited to 'intern/ghost') diff --git a/intern/ghost/CMakeLists.txt b/intern/ghost/CMakeLists.txt index f90e8a973bf..16929a13840 100644 --- a/intern/ghost/CMakeLists.txt +++ b/intern/ghost/CMakeLists.txt @@ -282,6 +282,7 @@ elseif(WITH_GHOST_X11 OR WITH_GHOST_WAYLAND) ${wayland-egl_INCLUDE_DIRS} ${xkbcommon_INCLUDE_DIRS} ${wayland-cursor_INCLUDE_DIRS} + ${dbus_INCLUDE_DIRS} ) list(APPEND SRC diff --git a/intern/ghost/intern/GHOST_SystemWayland.cpp b/intern/ghost/intern/GHOST_SystemWayland.cpp index 6bfe3f34c4a..97a2f7501a3 100644 --- a/intern/ghost/intern/GHOST_SystemWayland.cpp +++ b/intern/ghost/intern/GHOST_SystemWayland.cpp @@ -40,6 +40,7 @@ #include #include +#include "GHOST_WaylandCursorSettings.h" #include #include #include @@ -1336,11 +1337,14 @@ GHOST_SystemWayland::GHOST_SystemWayland() : GHOST_System(), d(new display_t) } } - const char *theme = std::getenv("XCURSOR_THEME"); - const char *size = std::getenv("XCURSOR_SIZE"); - const int sizei = size ? std::stoi(size) : default_cursor_size; + std::string theme; + int size; + if (!get_cursor_settings(theme, size)) { + theme = std::string(); + size = default_cursor_size; + } - d->cursor_theme = wl_cursor_theme_load(theme, sizei, d->shm); + d->cursor_theme = wl_cursor_theme_load(theme.c_str(), size, d->shm); if (!d->cursor_theme) { display_destroy(d); throw std::runtime_error("Wayland: unable to access cursor themes!"); diff --git a/intern/ghost/intern/GHOST_WaylandCursorSettings.h b/intern/ghost/intern/GHOST_WaylandCursorSettings.h new file mode 100644 index 00000000000..c7d2d82ff84 --- /dev/null +++ b/intern/ghost/intern/GHOST_WaylandCursorSettings.h @@ -0,0 +1,130 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** \file + * \ingroup GHOST + */ + +#pragma once +#include +#include + +static DBusMessage *get_setting_sync(DBusConnection *const connection, + const char *key, + const char *value) +{ + DBusError error; + dbus_bool_t success; + DBusMessage *message; + DBusMessage *reply; + + dbus_error_init(&error); + + message = dbus_message_new_method_call("org.freedesktop.portal.Desktop", + "/org/freedesktop/portal/desktop", + "org.freedesktop.portal.Settings", + "Read"); + + success = dbus_message_append_args( + message, DBUS_TYPE_STRING, &key, DBUS_TYPE_STRING, &value, DBUS_TYPE_INVALID); + + if (!success) { + return NULL; + } + + reply = dbus_connection_send_with_reply_and_block( + connection, message, DBUS_TIMEOUT_USE_DEFAULT, &error); + + dbus_message_unref(message); + + if (dbus_error_is_set(&error)) { + return NULL; + } + + return reply; +} + +static bool parse_type(DBusMessage *const reply, const int type, void *value) +{ + DBusMessageIter iter[3]; + + dbus_message_iter_init(reply, &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]) != type) { + return false; + } + + dbus_message_iter_get_basic(&iter[2], value); + + return true; +} + +static bool get_cursor_settings(std::string &theme, int &size) +{ + static const char name[] = "org.gnome.desktop.interface"; + static const char key_theme[] = "cursor-theme"; + static const char key_size[] = "cursor-size"; + + DBusError error; + DBusConnection *connection; + DBusMessage *reply; + const char *value_theme = NULL; + + dbus_error_init(&error); + + connection = dbus_bus_get(DBUS_BUS_SESSION, &error); + + if (dbus_error_is_set(&error)) { + return false; + } + + reply = get_setting_sync(connection, name, key_theme); + if (!reply) { + return false; + } + + if (!parse_type(reply, DBUS_TYPE_STRING, &value_theme)) { + dbus_message_unref(reply); + return false; + } + + theme = std::string(value_theme); + + dbus_message_unref(reply); + + reply = get_setting_sync(connection, name, key_size); + if (!reply) { + return false; + } + + if (!parse_type(reply, DBUS_TYPE_INT32, &size)) { + dbus_message_unref(reply); + return false; + } + + dbus_message_unref(reply); + + return true; +} -- cgit v1.2.3