mirror of https://github.com/polybar/polybar.git
restack: Add ewmh restacking strategy
Positions the bar window above the _NET_SUPPORTING_WM_CHECK window The generic restacking strategy now first tries the ewmh strategy, the the bottom strategy.
This commit is contained in:
patrick96
Patrick Ziegler
parent
b11a2ff653
commit
4f9f07eefd
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@ -11,8 +11,10 @@ namespace restack_util {
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using params = std::pair<xcb_window_t, xcb_stack_mode_t>;
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void restack_relative(connection& conn, xcb_window_t win, xcb_window_t sibling, xcb_stack_mode_t stack_mode);
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string stack_mode_to_string(xcb_stack_mode_t mode);
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bool are_siblings(connection& conn, xcb_window_t win, xcb_window_t sibling);
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params get_bottom_params(connection& conn, xcb_window_t bar_window);
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params get_ewmh_params(connection& conn);
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params get_generic_params(connection& conn, xcb_window_t bar_window);
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}
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@ -53,6 +53,9 @@ namespace ewmh_util {
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void set_wm_window_opacity(xcb_window_t win, unsigned long int values);
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vector<xcb_window_t> get_client_list(int screen = 0);
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xcb_window_t get_supporting_wm_check(xcb_window_t win);
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xcb_window_t get_ewmh_meta_window(xcb_window_t root);
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} // namespace ewmh_util
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POLYBAR_NS_END
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@ -501,7 +501,9 @@ void bar::restack_window() {
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xcb_stack_mode_t stack_mode = XCB_STACK_MODE_ABOVE;
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if (wm_restack == "generic") {
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std::tie(restack_sibling, stack_mode) = restack_util::get_bottom_params(m_connection, bar_window);
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std::tie(restack_sibling, stack_mode) = restack_util::get_generic_params(m_connection, bar_window);
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} else if (wm_restack == "ewmh") {
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std::tie(restack_sibling, stack_mode) = restack_util::get_ewmh_params(m_connection);
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} else if (wm_restack == "bottom") {
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std::tie(restack_sibling, stack_mode) = restack_util::get_bottom_params(m_connection, bar_window);
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} else if (wm_restack == "bspwm") {
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@ -520,6 +522,8 @@ void bar::restack_window() {
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if (restack_sibling != XCB_NONE) {
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try {
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m_log.info("bar: Restacking bar window relative to %s with stacking mode %s", m_connection.id(restack_sibling),
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restack_util::stack_mode_to_string(stack_mode));
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restack_util::restack_relative(m_connection, bar_window, restack_sibling, stack_mode);
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m_log.info("Successfully restacked bar window");
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} catch (const exception& err) {
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@ -22,6 +22,23 @@ void restack_relative(connection& conn, xcb_window_t win, xcb_window_t sibling,
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conn.configure_window_checked(win, value_mask, value_list.data());
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}
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string stack_mode_to_string(xcb_stack_mode_t mode) {
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switch (mode) {
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case XCB_STACK_MODE_ABOVE:
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return "ABOVE";
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case XCB_STACK_MODE_BELOW:
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return "BELOW";
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case XCB_STACK_MODE_TOP_IF:
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return "TOP_IF";
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case XCB_STACK_MODE_BOTTOM_IF:
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return "BOTTOM_IF";
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case XCB_STACK_MODE_OPPOSITE:
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return "OPPOSITE";
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}
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return "UNKNOWN";
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}
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/**
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* @return true iff the two given windows are sibings (are different windows and have same parent).
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*/
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@ -40,7 +57,7 @@ bool are_siblings(connection& conn, xcb_window_t win, xcb_window_t sibling) {
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*
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* Moves the bar window to the bottom of the window stack
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*/
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std::pair<xcb_window_t, xcb_stack_mode_t> get_bottom_params(connection& conn, xcb_window_t bar_window) {
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params get_bottom_params(connection& conn, xcb_window_t bar_window) {
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auto children = conn.query_tree(conn.root()).children();
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if (children.begin() != children.end() && *children.begin() != bar_window) {
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return {*children.begin(), XCB_STACK_MODE_BELOW};
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@ -49,19 +66,42 @@ std::pair<xcb_window_t, xcb_stack_mode_t> get_bottom_params(connection& conn, xc
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return NONE_PARAMS;
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}
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/**
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* EWMH restack strategy.
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*
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* Moves the bar window above the WM meta window (_NET_SUPPORTING_WM_CHECK).
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* This window is generally towards the bottom of the window stack, but still above other windows that could interfere.
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*
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* @see ewmh_util::get_ewmh_meta_window
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*/
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params get_ewmh_params(connection& conn) {
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if (auto meta_window = ewmh_util::get_ewmh_meta_window(conn.root())) {
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return {meta_window, XCB_STACK_MODE_ABOVE};
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}
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return NONE_PARAMS;
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}
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/**
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* Generic restack stratgey.
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*
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* Tries to provide the best WM-agnostic restacking.
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*
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* Currently tries to the following stratgies in order:
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* * ewmh
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* * bottom
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*/
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std::pair<xcb_window_t, xcb_stack_mode_t> get_generic_params(connection& conn, xcb_window_t bar_window) {
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auto [sibling, mode] = get_bottom_params(conn, bar_window);
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params get_generic_params(connection& conn, xcb_window_t bar_window) {
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auto ewmh_params = get_ewmh_params(conn);
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if (are_siblings(conn, bar_window, sibling)) {
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return {sibling, mode};
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if (are_siblings(conn, bar_window, ewmh_params.first)) {
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return ewmh_params;
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}
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auto bottom_params = get_bottom_params(conn, bar_window);
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if (are_siblings(conn, bar_window, bottom_params.first)) {
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return bottom_params;
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}
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return NONE_PARAMS;
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373
src/x11/ewmh.cpp
373
src/x11/ewmh.cpp
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@ -11,188 +11,221 @@ POLYBAR_NS
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namespace ewmh_util {
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ewmh_connection::ewmh_connection() {
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xcb_ewmh_init_atoms_replies(&c, xcb_ewmh_init_atoms(connection::make(), &c), nullptr);
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}
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ewmh_connection::ewmh_connection() {
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xcb_ewmh_init_atoms_replies(&c, xcb_ewmh_init_atoms(connection::make(), &c), nullptr);
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}
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ewmh_connection::~ewmh_connection() {
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xcb_ewmh_connection_wipe(&c);
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}
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ewmh_connection::~ewmh_connection() {
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xcb_ewmh_connection_wipe(&c);
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}
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xcb_ewmh_connection_t* ewmh_connection::operator->() {
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return &c;
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}
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xcb_ewmh_connection_t* ewmh_connection::operator->() {
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return &c;
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}
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ewmh_connection::operator xcb_ewmh_connection_t*() {
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return &c;
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}
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ewmh_connection::operator xcb_ewmh_connection_t*() {
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return &c;
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}
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ewmh_connection& initialize() {
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static ewmh_connection c;
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return c;
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}
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ewmh_connection& initialize() {
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static ewmh_connection c;
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return c;
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}
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bool supports(xcb_atom_t atom, int screen) {
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auto& conn = initialize();
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xcb_ewmh_get_atoms_reply_t reply{};
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if (xcb_ewmh_get_supported_reply(conn, xcb_ewmh_get_supported(conn, screen), &reply, nullptr)) {
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for (size_t n = 0; n < reply.atoms_len; n++) {
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if (reply.atoms[n] == atom) {
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xcb_ewmh_get_atoms_reply_wipe(&reply);
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return true;
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}
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}
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xcb_ewmh_get_atoms_reply_wipe(&reply);
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}
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return false;
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}
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string get_wm_name(xcb_window_t win) {
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auto& conn = initialize();
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xcb_ewmh_get_utf8_strings_reply_t utf8_reply{};
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if (xcb_ewmh_get_wm_name_reply(conn, xcb_ewmh_get_wm_name(conn, win), &utf8_reply, nullptr)) {
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return get_reply_string(&utf8_reply);
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}
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return "";
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}
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string get_visible_name(xcb_window_t win) {
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auto& conn = initialize();
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xcb_ewmh_get_utf8_strings_reply_t utf8_reply{};
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if (xcb_ewmh_get_wm_visible_name_reply(conn, xcb_ewmh_get_wm_visible_name(conn, win), &utf8_reply, nullptr)) {
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return get_reply_string(&utf8_reply);
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}
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return "";
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}
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string get_icon_name(xcb_window_t win) {
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auto& conn = initialize();
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xcb_ewmh_get_utf8_strings_reply_t utf8_reply{};
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if (xcb_ewmh_get_wm_icon_name_reply(conn, xcb_ewmh_get_wm_icon_name(conn, win), &utf8_reply, nullptr)) {
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return get_reply_string(&utf8_reply);
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}
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return "";
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}
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string get_reply_string(xcb_ewmh_get_utf8_strings_reply_t* reply) {
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string str;
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if (reply) {
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str = string(reply->strings, reply->strings_len);
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xcb_ewmh_get_utf8_strings_reply_wipe(reply);
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}
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return str;
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}
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unsigned int get_current_desktop(int screen) {
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auto& conn = initialize();
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unsigned int desktop = XCB_NONE;
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xcb_ewmh_get_current_desktop_reply(conn, xcb_ewmh_get_current_desktop(conn, screen), &desktop, nullptr);
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return desktop;
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}
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unsigned int get_number_of_desktops(int screen) {
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auto& conn = initialize();
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unsigned int desktops = XCB_NONE;
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xcb_ewmh_get_number_of_desktops_reply(conn, xcb_ewmh_get_number_of_desktops(conn, screen), &desktops, nullptr);
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return desktops;
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}
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vector<position> get_desktop_viewports(int screen) {
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auto& conn = initialize();
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vector<position> viewports;
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xcb_ewmh_get_desktop_viewport_reply_t reply{};
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if (xcb_ewmh_get_desktop_viewport_reply(conn, xcb_ewmh_get_desktop_viewport(conn, screen), &reply, nullptr)) {
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for (size_t n = 0; n < reply.desktop_viewport_len; n++) {
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viewports.emplace_back(position{
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static_cast<short int>(reply.desktop_viewport[n].x), static_cast<short int>(reply.desktop_viewport[n].y)});
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bool supports(xcb_atom_t atom, int screen) {
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auto& conn = initialize();
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xcb_ewmh_get_atoms_reply_t reply{};
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if (xcb_ewmh_get_supported_reply(conn, xcb_ewmh_get_supported(conn, screen), &reply, nullptr)) {
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for (size_t n = 0; n < reply.atoms_len; n++) {
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if (reply.atoms[n] == atom) {
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xcb_ewmh_get_atoms_reply_wipe(&reply);
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return true;
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}
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}
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return viewports;
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xcb_ewmh_get_atoms_reply_wipe(&reply);
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}
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return false;
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}
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vector<string> get_desktop_names(int screen) {
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auto& conn = initialize();
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xcb_ewmh_get_utf8_strings_reply_t reply{};
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if (xcb_ewmh_get_desktop_names_reply(conn, xcb_ewmh_get_desktop_names(conn, screen), &reply, nullptr)) {
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return string_util::split(string(reply.strings, reply.strings_len), '\0');
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string get_wm_name(xcb_window_t win) {
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auto& conn = initialize();
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xcb_ewmh_get_utf8_strings_reply_t utf8_reply{};
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if (xcb_ewmh_get_wm_name_reply(conn, xcb_ewmh_get_wm_name(conn, win), &utf8_reply, nullptr)) {
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return get_reply_string(&utf8_reply);
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}
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return "";
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}
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string get_visible_name(xcb_window_t win) {
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auto& conn = initialize();
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xcb_ewmh_get_utf8_strings_reply_t utf8_reply{};
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if (xcb_ewmh_get_wm_visible_name_reply(conn, xcb_ewmh_get_wm_visible_name(conn, win), &utf8_reply, nullptr)) {
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return get_reply_string(&utf8_reply);
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}
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return "";
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}
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string get_icon_name(xcb_window_t win) {
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auto& conn = initialize();
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xcb_ewmh_get_utf8_strings_reply_t utf8_reply{};
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if (xcb_ewmh_get_wm_icon_name_reply(conn, xcb_ewmh_get_wm_icon_name(conn, win), &utf8_reply, nullptr)) {
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return get_reply_string(&utf8_reply);
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}
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return "";
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}
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string get_reply_string(xcb_ewmh_get_utf8_strings_reply_t* reply) {
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string str;
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if (reply) {
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str = string(reply->strings, reply->strings_len);
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xcb_ewmh_get_utf8_strings_reply_wipe(reply);
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}
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return str;
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}
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unsigned int get_current_desktop(int screen) {
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auto& conn = initialize();
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unsigned int desktop = XCB_NONE;
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xcb_ewmh_get_current_desktop_reply(conn, xcb_ewmh_get_current_desktop(conn, screen), &desktop, nullptr);
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return desktop;
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}
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unsigned int get_number_of_desktops(int screen) {
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auto& conn = initialize();
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unsigned int desktops = XCB_NONE;
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xcb_ewmh_get_number_of_desktops_reply(conn, xcb_ewmh_get_number_of_desktops(conn, screen), &desktops, nullptr);
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return desktops;
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}
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vector<position> get_desktop_viewports(int screen) {
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auto& conn = initialize();
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vector<position> viewports;
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xcb_ewmh_get_desktop_viewport_reply_t reply{};
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if (xcb_ewmh_get_desktop_viewport_reply(conn, xcb_ewmh_get_desktop_viewport(conn, screen), &reply, nullptr)) {
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for (size_t n = 0; n < reply.desktop_viewport_len; n++) {
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viewports.emplace_back(position{
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static_cast<short int>(reply.desktop_viewport[n].x), static_cast<short int>(reply.desktop_viewport[n].y)});
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}
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return {};
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}
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return viewports;
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}
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vector<string> get_desktop_names(int screen) {
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auto& conn = initialize();
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xcb_ewmh_get_utf8_strings_reply_t reply{};
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if (xcb_ewmh_get_desktop_names_reply(conn, xcb_ewmh_get_desktop_names(conn, screen), &reply, nullptr)) {
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return string_util::split(string(reply.strings, reply.strings_len), '\0');
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}
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return {};
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}
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xcb_window_t get_active_window(int screen) {
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auto& conn = initialize();
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unsigned int win = XCB_NONE;
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xcb_ewmh_get_active_window_reply(conn, xcb_ewmh_get_active_window(conn, screen), &win, nullptr);
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return win;
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}
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void change_current_desktop(unsigned int desktop) {
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auto& conn = initialize();
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xcb_ewmh_request_change_current_desktop(conn, 0, desktop, XCB_CURRENT_TIME);
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xcb_flush(conn->connection);
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}
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unsigned int get_desktop_from_window(xcb_window_t window) {
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auto& conn = initialize();
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unsigned int desktop = XCB_NONE;
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xcb_ewmh_get_wm_desktop_reply(conn, xcb_ewmh_get_wm_desktop(conn, window), &desktop, nullptr);
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return desktop;
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}
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void set_wm_window_type(xcb_window_t win, vector<xcb_atom_t> types) {
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auto& conn = initialize();
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xcb_ewmh_set_wm_window_type(conn, win, types.size(), types.data());
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xcb_flush(conn->connection);
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}
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void set_wm_state(xcb_window_t win, vector<xcb_atom_t> states) {
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auto& conn = initialize();
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xcb_ewmh_set_wm_state(conn, win, states.size(), states.data());
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xcb_flush(conn->connection);
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}
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vector<xcb_atom_t> get_wm_state(xcb_window_t win) {
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auto& conn = initialize();
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xcb_ewmh_get_atoms_reply_t reply;
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if (xcb_ewmh_get_wm_state_reply(conn, xcb_ewmh_get_wm_state(conn, win), &reply, nullptr)) {
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return {reply.atoms, reply.atoms + reply.atoms_len};
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}
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return {};
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}
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void set_wm_pid(xcb_window_t win) {
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auto& conn = initialize();
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xcb_ewmh_set_wm_pid(conn, win, getpid());
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xcb_flush(conn->connection);
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}
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void set_wm_pid(xcb_window_t win, unsigned int pid) {
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auto& conn = initialize();
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xcb_ewmh_set_wm_pid(conn, win, pid);
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xcb_flush(conn->connection);
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}
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void set_wm_desktop(xcb_window_t win, unsigned int desktop) {
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auto& conn = initialize();
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xcb_ewmh_set_wm_desktop(conn, win, desktop);
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xcb_flush(conn->connection);
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}
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void set_wm_window_opacity(xcb_window_t win, unsigned long int values) {
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auto& conn = initialize();
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xcb_change_property(
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conn->connection, XCB_PROP_MODE_REPLACE, win, _NET_WM_WINDOW_OPACITY, XCB_ATOM_CARDINAL, 32, 1, &values);
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xcb_flush(conn->connection);
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}
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vector<xcb_window_t> get_client_list(int screen) {
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auto& conn = initialize();
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xcb_ewmh_get_windows_reply_t reply;
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if (xcb_ewmh_get_client_list_reply(conn, xcb_ewmh_get_client_list(conn, screen), &reply, nullptr)) {
|
||||
return {reply.windows, reply.windows + reply.windows_len};
|
||||
}
|
||||
return {};
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieves the _NET_SUPPORTING_WM_CHECK atom on the given window
|
||||
*
|
||||
* @return The _NET_SUPPORTING_WM_CHECK window id or XCB_NONE in case of an error
|
||||
*/
|
||||
xcb_window_t get_supporting_wm_check(xcb_window_t win) {
|
||||
auto& conn = initialize();
|
||||
xcb_window_t result{};
|
||||
if (xcb_ewmh_get_supporting_wm_check_reply(conn, xcb_ewmh_get_supporting_wm_check(conn, win), &result, nullptr)) {
|
||||
return result;
|
||||
}
|
||||
return XCB_NONE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Searches for the meta window spawned by the WM to indicate a compliant WM is active.
|
||||
*
|
||||
* The window has the following properties:
|
||||
* * It's pointed to by the root window's _NET_SUPPORTING_WM_CHECK atom
|
||||
* * Its own _NET_SUPPORTING_WM_CHECK atom is set and points to itself
|
||||
*
|
||||
* @return The meta window id or XCB_NONE if it wasn't found
|
||||
*/
|
||||
xcb_window_t get_ewmh_meta_window(xcb_window_t root) {
|
||||
xcb_window_t wm_meta_window = ewmh_util::get_supporting_wm_check(root);
|
||||
|
||||
if (wm_meta_window != XCB_NONE && ewmh_util::get_supporting_wm_check(wm_meta_window) == wm_meta_window) {
|
||||
return wm_meta_window;
|
||||
}
|
||||
|
||||
xcb_window_t get_active_window(int screen) {
|
||||
auto& conn = initialize();
|
||||
unsigned int win = XCB_NONE;
|
||||
xcb_ewmh_get_active_window_reply(conn, xcb_ewmh_get_active_window(conn, screen), &win, nullptr);
|
||||
return win;
|
||||
}
|
||||
|
||||
void change_current_desktop(unsigned int desktop) {
|
||||
auto& conn = initialize();
|
||||
xcb_ewmh_request_change_current_desktop(conn, 0, desktop, XCB_CURRENT_TIME);
|
||||
xcb_flush(conn->connection);
|
||||
}
|
||||
|
||||
unsigned int get_desktop_from_window(xcb_window_t window) {
|
||||
auto& conn = initialize();
|
||||
unsigned int desktop = XCB_NONE;
|
||||
xcb_ewmh_get_wm_desktop_reply(conn, xcb_ewmh_get_wm_desktop(conn, window), &desktop, nullptr);
|
||||
return desktop;
|
||||
}
|
||||
|
||||
void set_wm_window_type(xcb_window_t win, vector<xcb_atom_t> types) {
|
||||
auto& conn = initialize();
|
||||
xcb_ewmh_set_wm_window_type(conn, win, types.size(), types.data());
|
||||
xcb_flush(conn->connection);
|
||||
}
|
||||
|
||||
void set_wm_state(xcb_window_t win, vector<xcb_atom_t> states) {
|
||||
auto& conn = initialize();
|
||||
xcb_ewmh_set_wm_state(conn, win, states.size(), states.data());
|
||||
xcb_flush(conn->connection);
|
||||
}
|
||||
|
||||
vector<xcb_atom_t> get_wm_state(xcb_window_t win) {
|
||||
auto& conn = initialize();
|
||||
xcb_ewmh_get_atoms_reply_t reply;
|
||||
if (xcb_ewmh_get_wm_state_reply(conn, xcb_ewmh_get_wm_state(conn, win), &reply, nullptr)) {
|
||||
return {reply.atoms, reply.atoms + reply.atoms_len};
|
||||
}
|
||||
return {};
|
||||
}
|
||||
|
||||
void set_wm_pid(xcb_window_t win) {
|
||||
auto& conn = initialize();
|
||||
xcb_ewmh_set_wm_pid(conn, win, getpid());
|
||||
xcb_flush(conn->connection);
|
||||
}
|
||||
|
||||
void set_wm_pid(xcb_window_t win, unsigned int pid) {
|
||||
auto& conn = initialize();
|
||||
xcb_ewmh_set_wm_pid(conn, win, pid);
|
||||
xcb_flush(conn->connection);
|
||||
}
|
||||
|
||||
void set_wm_desktop(xcb_window_t win, unsigned int desktop) {
|
||||
auto& conn = initialize();
|
||||
xcb_ewmh_set_wm_desktop(conn, win, desktop);
|
||||
xcb_flush(conn->connection);
|
||||
}
|
||||
|
||||
void set_wm_window_opacity(xcb_window_t win, unsigned long int values) {
|
||||
auto& conn = initialize();
|
||||
xcb_change_property(
|
||||
conn->connection, XCB_PROP_MODE_REPLACE, win, _NET_WM_WINDOW_OPACITY, XCB_ATOM_CARDINAL, 32, 1, &values);
|
||||
xcb_flush(conn->connection);
|
||||
}
|
||||
|
||||
vector<xcb_window_t> get_client_list(int screen) {
|
||||
auto& conn = initialize();
|
||||
xcb_ewmh_get_windows_reply_t reply;
|
||||
if (xcb_ewmh_get_client_list_reply(conn, xcb_ewmh_get_client_list(conn, screen), &reply, nullptr)) {
|
||||
return {reply.windows, reply.windows + reply.windows_len};
|
||||
}
|
||||
return {};
|
||||
}
|
||||
return XCB_NONE;
|
||||
}
|
||||
} // namespace ewmh_util
|
||||
|
||||
POLYBAR_NS_END
|
||||
|
|
|
|||
Loading…
Reference in New Issue