/**
* Query for the XKB extension
*/
void query_extension(connection& conn) {
conn.xkb().use_extension(XCB_XKB_MAJOR_VERSION, XCB_XKB_MINOR_VERSION);
if (!conn.extension<xpp::xkb::extension>()->present) {
throw application_error("Missing X extension: XKb");
}
}
/**
* Get keyboard indicators
*/
map<keyboard::indicator::type, keyboard::indicator> get_indicators(connection& conn, xcb_xkb_device_spec_t device) {
map<keyboard::indicator::type, keyboard::indicator> results;
unsigned int mask{XCB_XKB_NAME_DETAIL_INDICATOR_NAMES};
auto reply = xcb_xkb_get_names_reply(conn, xcb_xkb_get_names(conn, device, mask), nullptr);
if (reply == nullptr) {
return results;
}
xcb_xkb_get_names_value_list_t values{};
void* buffer = xcb_xkb_get_names_value_list(reply);
xcb_xkb_get_names_value_list_unpack(buffer, reply->nTypes, reply->indicators, reply->virtualMods, reply->groupNames,
reply->nKeys, reply->nKeyAliases, reply->nRadioGroups, reply->which, &values);
using get_atom_name_reply = xpp::x::reply::checked::get_atom_name<connection&>;
map<xcb_atom_t, get_atom_name_reply> entries;
for (int i = 0; i < xcb_xkb_get_names_value_list_indicator_names_length(reply, &values); i++) {
entries.emplace(values.indicatorNames[i], xpp::x::get_atom_name(conn, values.indicatorNames[i]));
}
for (const auto& entry : entries) {
auto name = static_cast<get_atom_name_reply>(entry.second).name();
auto type = keyboard::indicator::type::NONE;
if (string_util::compare(name, "caps lock")) {
type = keyboard::indicator::type::CAPS_LOCK;
} else if (string_util::compare(name, "num lock")) {
type = keyboard::indicator::type::NUM_LOCK;
} else {
continue;
}
auto data = conn.xkb().get_named_indicator(device, 0, 0, entry.first);
auto mask = (*conn.xkb().get_indicator_map(device, 1 << data->ndx).maps().begin()).mods;
auto enabled = static_cast<bool>(data->on);
results.emplace(type, keyboard::indicator{entry.first, mask, name, enabled});
}
free(reply);
return results;
}
