Use connection.root() to get root window

include/components/screen.hpp

@@ -24,14 +24,6 @@ class screen : public xpp::event::sink<evt::randr_screen_change_notify> {
   explicit screen(connection& conn, signal_emitter& emitter, const logger& logger, const config& conf);
   ~screen();
 
-  struct size size() const {
-    return m_size;
-  }
-
-  xcb_window_t root() const {
-    return m_root;
-  }
-
  protected:
   void handle(const evt::randr_screen_change_notify& evt) override;
 

include/x11/connection.hpp

@@ -40,7 +40,7 @@ namespace detail {
         , Extensions(m_c.get())...
         , Extensions::error_dispatcher(static_cast<Extensions&>(*this).get())... {
       core::m_screen = s;
-      m_root_window = screen_of_display(default_screen())->root;
+      m_root_window = screen_of_display(s)->root;
     }
 
     virtual ~connection_base() {}
@@ -54,10 +54,8 @@ namespace detail {
       return static_cast<const Extension&>(*this);
     }
 
-    template <typename WindowType = xcb_window_t>
+    xcb_window_t root() const {
-    WindowType root() const {
+      return m_root_window;
-      using make = xpp::generic::factory::make<connection_base, xcb_window_t, WindowType>;
-      return make()(*this, m_root_window);
     }
 
     shared_ptr<xcb_generic_event_t> wait_for_event() const override {

include/x11/extensions/randr.hpp

@@ -57,8 +57,7 @@ namespace randr_util {
 
   monitor_t make_monitor(xcb_randr_output_t randr, string name, unsigned short int w, unsigned short int h, short int x,
       short int y, bool primary);
-  vector<monitor_t> get_monitors(
+  vector<monitor_t> get_monitors(connection& conn, bool connected_only = false, bool purge_clones = true);
-      connection& conn, xcb_window_t root, bool connected_only = false, bool purge_clones = true);
   monitor_t match_monitor(vector<monitor_t> monitors, const string& name, bool exact_match);
 
   void get_backlight_range(connection& conn, const monitor_t& mon, backlight_values& dst);

src/components/bar.cpp

@@ -80,7 +80,7 @@ bar::bar(connection& conn, signal_emitter& emitter, const config& config, const
   auto monitor_name_fallback = m_conf.get(bs, "monitor-fallback", ""s);
   m_opts.monitor_strict = m_conf.get(bs, "monitor-strict", m_opts.monitor_strict);
   m_opts.monitor_exact = m_conf.get(bs, "monitor-exact", m_opts.monitor_exact);
-  auto monitors = randr_util::get_monitors(m_connection, m_connection.screen()->root, m_opts.monitor_strict, false);
+  auto monitors = randr_util::get_monitors(m_connection, m_opts.monitor_strict, false);
 
   if (monitors.empty()) {
     throw application_error("No monitors found");
@@ -98,7 +98,7 @@ bar::bar(connection& conn, signal_emitter& emitter, const config& config, const
 
   // if still not found (and not strict matching), get first connected monitor
   if (monitor_name.empty() && !m_opts.monitor_strict) {
-    auto connected_monitors = randr_util::get_monitors(m_connection, m_connection.screen()->root, true, false);
+    auto connected_monitors = randr_util::get_monitors(m_connection, true, false);
     if (!connected_monitors.empty()) {
       monitor_name = connected_monitors[0]->name;
       m_log.warn("No monitor specified, using \"%s\"", monitor_name);
@@ -497,7 +497,7 @@ void bar::restack_window() {
 
   if (wm_restack == "generic") {
     try {
-      auto children = m_connection.query_tree(m_connection.screen()->root).children();
+      auto children = m_connection.query_tree(m_connection.root()).children();
       if (children.begin() != children.end() && *children.begin() != m_opts.window) {
         const unsigned int value_mask = XCB_CONFIG_WINDOW_SIBLING | XCB_CONFIG_WINDOW_STACK_MODE;
         const unsigned int value_list[2]{*children.begin(), XCB_STACK_MODE_BELOW};
@@ -556,7 +556,7 @@ void bar::reconfigure_pos() {
  * Reconfigure window strut values
  */
 void bar::reconfigure_struts() {
-  auto geom = m_connection.get_geometry(m_screen->root());
+  auto geom = m_connection.get_geometry(m_connection.root());
   int h = m_opts.size.h + m_opts.offset.y;
 
   // Apply user-defined margins

src/components/renderer.cpp

@@ -61,7 +61,7 @@ renderer::renderer(connection& conn, signal_emitter& sig, const config& conf, co
 
   m_log.trace("renderer: Allocate colormap");
   m_colormap = m_connection.generate_id();
-  m_connection.create_colormap(XCB_COLORMAP_ALLOC_NONE, m_colormap, m_connection.screen()->root, m_visual->visual_id);
+  m_connection.create_colormap(XCB_COLORMAP_ALLOC_NONE, m_colormap, m_connection.root(), m_visual->visual_id);
 
   m_log.trace("renderer: Allocate output window");
   // clang-format off

src/components/screen.cpp

@@ -35,7 +35,7 @@ screen::screen(connection& conn, signal_emitter& emitter, const logger& logger,
     , m_log(logger)
     , m_conf(conf)
     , m_root(conn.root())
-    , m_monitors(randr_util::get_monitors(m_connection, m_root, true, false))
+    , m_monitors(randr_util::get_monitors(m_connection, true, false))
     , m_size({conn.screen()->width_in_pixels, conn.screen()->height_in_pixels}) {
   // Check if the reloading has been disabled by the user
   if (!m_conf.get("settings", "screenchange-reload", false)) {
@@ -120,7 +120,7 @@ void screen::handle(const evt::randr_screen_change_notify& evt) {
  * Fetches the monitor list and compares it with the one stored
  */
 bool screen::have_monitors_changed() const {
-  auto monitors = randr_util::get_monitors(m_connection, m_root, true, false);
+  auto monitors = randr_util::get_monitors(m_connection, true, false);
 
   if (monitors.size() != m_monitors.size()) {
     return true;

src/main.cpp

@@ -82,7 +82,7 @@ int main(int argc, char** argv) {
     //==================================================
     if (cli->has("list-monitors") || cli->has("list-all-monitors")) {
       bool purge_clones = !cli->has("list-all-monitors");
-      auto monitors = randr_util::get_monitors(conn, conn.root(), true, purge_clones);
+      auto monitors = randr_util::get_monitors(conn, true, purge_clones);
       for (auto&& mon : monitors) {
         if (mon->output == XCB_NONE) {
           printf("%s: %ix%i+%i+%i (no output%s)\n", mon->name.c_str(), mon->w, mon->h, mon->x, mon->y,

src/modules/xbacklight.cpp

@@ -23,7 +23,7 @@ namespace modules {
 
     auto output = m_conf.get(name(), "output", m_bar.monitor->name);
 
-    auto monitors = randr_util::get_monitors(m_connection, m_connection.root(), bar.monitor_strict, false);
+    auto monitors = randr_util::get_monitors(m_connection, bar.monitor_strict, false);
 
     m_output = randr_util::match_monitor(monitors, output, bar.monitor_exact);
 

src/modules/xworkspaces.cpp

@@ -84,7 +84,7 @@ namespace modules {
     }
 
     // Get list of monitors
-    m_monitors = randr_util::get_monitors(m_connection, m_connection.root(), false);
+    m_monitors = randr_util::get_monitors(m_connection, false);
 
     // Get desktop details
     m_desktop_names = get_desktop_names();

src/utils/bspwm.cpp

@@ -1,7 +1,8 @@
+#include "utils/bspwm.hpp"
+
 #include <sys/un.h>
 
 #include "errors.hpp"
-#include "utils/bspwm.hpp"
 #include "utils/env.hpp"
 #include "x11/connection.hpp"
 
@@ -13,7 +14,7 @@ namespace bspwm_util {
    */
   vector<xcb_window_t> root_windows(connection& conn) {
     vector<xcb_window_t> roots;
-    auto children = conn.query_tree(conn.screen()->root).children();
+    auto children = conn.query_tree(conn.root()).children();
 
     for (auto it = children.begin(); it != children.end(); it++) {
       xcb_icccm_get_wm_class_reply_t reply{};
@@ -146,6 +147,6 @@ namespace bspwm_util {
     }
     return conn;
   }
-}
+} // namespace bspwm_util
 
 POLYBAR_NS_END

src/utils/i3.cpp

@@ -1,9 +1,11 @@
+#include "utils/i3.hpp"
+
 #include <xcb/xcb.h>
+
 #include <i3ipc++/ipc.hpp>
 
 #include "common.hpp"
 #include "settings.hpp"
-#include "utils/i3.hpp"
 #include "utils/socket.hpp"
 #include "utils/string.hpp"
 #include "x11/connection.hpp"
@@ -42,7 +44,7 @@ namespace i3_util {
    * Get main root window
    */
   xcb_window_t root_window(connection& conn) {
-    auto children = conn.query_tree(conn.screen()->root).children();
+    auto children = conn.query_tree(conn.root()).children();
     const auto wm_name = [&](xcb_connection_t* conn, xcb_window_t win) -> string {
       string title;
       if (!(title = ewmh_util::get_wm_name(win)).empty()) {
@@ -78,6 +80,6 @@ namespace i3_util {
     }
     return false;
   }
-}
+} // namespace i3_util
 
 POLYBAR_NS_END

src/x11/background_manager.cpp

@@ -96,8 +96,8 @@ void background_manager::fetch_root_pixmap() {
       }
 
       // fill the slice
-      auto translated = m_connection.translate_coordinates(
+      auto translated =
-          slice->m_window, m_connection.screen()->root, slice->m_rect.x, slice->m_rect.y);
+          m_connection.translate_coordinates(slice->m_window, m_connection.root(), slice->m_rect.x, slice->m_rect.y);
       auto src_x = math_util::cap(translated->dst_x, pixmap_geom.x, int16_t(pixmap_geom.x + pixmap_geom.width));
       auto src_y = math_util::cap(translated->dst_y, pixmap_geom.y, int16_t(pixmap_geom.y + pixmap_geom.height));
       auto w = math_util::cap(slice->m_rect.width, uint16_t(0), uint16_t(pixmap_geom.width - (src_x - pixmap_geom.x)));

src/x11/connection.cpp

@@ -169,7 +169,7 @@ bool connection::root_pixmap(xcb_pixmap_t* pixmap, int* depth, xcb_rectangle_t*
   const xcb_atom_t pixmap_properties[3]{_XROOTPMAP_ID, ESETROOT_PMAP_ID, _XSETROOT_ID};
   for (auto&& property : pixmap_properties) {
     try {
-      auto prop = get_property(false, screen()->root, property, XCB_ATOM_PIXMAP, 0L, 1L);
+      auto prop = get_property(false, root(), property, XCB_ATOM_PIXMAP, 0L, 1L);
       if (prop->format == 32 && prop->value_len == 1) {
         *pixmap = *prop.value<xcb_pixmap_t>().begin();
       }

src/x11/extensions/randr.cpp

@@ -105,22 +105,20 @@ namespace randr_util {
   /**
    * Create a list of all available randr outputs
    */
-  vector<monitor_t> get_monitors(connection& conn, xcb_window_t root, bool connected_only, bool purge_clones) {
+  vector<monitor_t> get_monitors(connection& conn, bool connected_only, bool purge_clones) {
+    xcb_window_t root = conn.root();
     vector<monitor_t> monitors;
     bool found = false;
 
     if (check_monitor_support()) {
 #if WITH_XRANDR_MONITORS
       /* Use C, because XPP does not provide access to output info from monitors. */
-      xcb_generic_error_t *err;
+      xcb_generic_error_t* err;
-      auto rrmonitors =
+      auto rrmonitors = xcb_randr_get_monitors_reply(conn, xcb_randr_get_monitors(conn, root, true), &err);
-        xcb_randr_get_monitors_reply(
-          conn, xcb_randr_get_monitors(conn, root, true), &err);
       if (err != NULL) {
         free(err);
       } else {
-        for (auto iter = xcb_randr_get_monitors_monitors_iterator(rrmonitors);
+        for (auto iter = xcb_randr_get_monitors_monitors_iterator(rrmonitors); iter.rem;
-             iter.rem;
              xcb_randr_monitor_info_next(&iter)) {
           auto mon = iter.data;
           auto name = conn.get_atom_name(mon->name).name();
@@ -129,7 +127,8 @@ namespace randr_util {
           int randr_output_len = xcb_randr_monitor_info_outputs_length(mon);
           auto randr_outputs = xcb_randr_monitor_info_outputs(mon);
           auto output = (randr_output_len >= 1) ? randr_outputs[0] : XCB_NONE;
-          monitors.emplace_back(make_monitor(output, move(name), mon->width, mon->height, mon->x, mon->y, mon->primary));
+          monitors.emplace_back(
+              make_monitor(output, move(name), mon->width, mon->height, mon->x, mon->y, mon->primary));
           found = true;
         }
         free(rrmonitors);
@@ -160,8 +159,10 @@ namespace randr_util {
 
           auto crtc = conn.get_crtc_info(info->crtc);
           auto primary = (primary_name == name);
-          if (!std::any_of(monitors.begin(), monitors.end(), [name](const auto &monitor) { return monitor->name == name; })) {
+          if (!std::any_of(
-            monitors.emplace_back(make_monitor(output, move(name), crtc->width, crtc->height, crtc->x, crtc->y, primary));
+                  monitors.begin(), monitors.end(), [name](const auto& monitor) { return monitor->name == name; })) {
+            monitors.emplace_back(
+                make_monitor(output, move(name), crtc->width, crtc->height, crtc->x, crtc->y, primary));
           }
         } catch (const exception&) {
           // silently ignore output

src/x11/tray_manager.cpp

@@ -573,8 +573,9 @@ void tray_manager::create_bg() {
  * Set window WM hints
  */
 void tray_manager::set_wm_hints() {
-  const unsigned int visual{m_connection.screen()->root_visual};
+  // TODO use same visual as bar/tray window
-  const unsigned int orientation{_NET_SYSTEM_TRAY_ORIENTATION_HORZ};
+  const xcb_visualid_t visual{m_connection.screen()->root_visual};
+  const uint32_t orientation{_NET_SYSTEM_TRAY_ORIENTATION_HORZ};
 
   m_log.trace("bar: Set window WM_NAME / WM_CLASS");
   icccm_util::set_wm_name(m_connection, m_tray, TRAY_WM_NAME, 19_z, TRAY_WM_CLASS, 12_z);

src/x11/winspec.cpp

@@ -21,7 +21,7 @@ xcb_window_t winspec::operator<<(const cw_flush& f) {
     m_window = m_connection.generate_id();
   }
   if (m_parent == XCB_NONE) {
-    m_parent = m_connection.screen()->root;
+    m_parent = m_connection.root();
   }
 
   if (m_width <= 0) {