1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup GHOST
*/
#pragma once
#include <string>
#ifdef WITH_GHOST_WAYLAND_DBUS
# include <dbus/dbus.h>
#endif
#ifdef WITH_GHOST_WAYLAND_DBUS
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 nullptr;
}
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 nullptr;
}
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;
}
#endif /* WITH_GHOST_WAYLAND_DBUS */
static bool get_cursor_settings(std::string &theme, int &size)
{
#ifdef WITH_GHOST_WAYLAND_DBUS
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 = nullptr;
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;
#else
/* NOTE: eventually we could have alternative ways to access the theme,
* this uses the "default" theme which is functional (instead of a user-defined theme). */
(void)theme;
(void)size;
return false;
#endif /* !WITH_GHOST_WAYLAND_DBUS */
}
|
