feat(xworkspaces): Persistent urgent hint (#2340)

* add urgent hint

* feat(xworkspaces): Fully implement urgency hint

Co-authored-by: Jérôme BOULMIER <jerome.boulmier@outlook.fr>

CHANGELOG.md

@@ -62,6 +62,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - IPC commands to change visibility of modules
   (`hide.<name>`, `show.<name>`, and `toggle.<name>`)
   ([`#2108`](https://github.com/polybar/polybar/issues/2108))
+- `internal/xworkspaces`: Make the urgent hint persistent
+  ([`#1081`](https://github.com/polybar/polybar/issues/1081))
 
 ### Changed
 - Slight changes to the value ranges the different ramp levels are responsible

include/modules/xworkspaces.hpp

@@ -68,9 +68,9 @@ namespace modules {
     void handle(const evt::property_notify& evt);
 
     void rebuild_clientlist();
+    void rebuild_urgent_hints();
     void rebuild_desktops();
     void rebuild_desktop_states();
-    void set_desktop_urgent(xcb_window_t window);
 
     bool input(const string& action, const string& data);
 
@@ -91,6 +91,7 @@ namespace modules {
     bool m_monitorsupport{true};
 
     vector<string> m_desktop_names;
+    vector<bool> m_urgent_desktops;
     unsigned int m_current_desktop;
     string m_current_desktop_name;
 

src/modules/xworkspaces.cpp

@@ -119,9 +119,8 @@ namespace modules {
       m_current_desktop_name = m_desktop_names[m_current_desktop];
       rebuild_desktop_states();
     } else if (evt->atom == WM_HINTS) {
-      if (icccm_util::get_wm_urgency(m_connection, evt->window)) {
-        set_desktop_urgent(evt->window);
-      }
+      rebuild_urgent_hints();
+      rebuild_desktop_states();
     } else {
       return;
     }
@@ -146,7 +145,21 @@ namespace modules {
     // rebuild entire mapping of clients to desktops
     m_clients.clear();
     for (auto&& client : newclients) {
-      m_clients[client] = ewmh_util::get_desktop_from_window(client);
+      auto desk = ewmh_util::get_desktop_from_window(client);
+      m_clients[client] = desk;
+    }
+
+    rebuild_urgent_hints();
+  }
+
+  /**
+   * Goes through all clients and updates the urgent hints on the desktop they are on.
+   */
+  void xworkspaces_module::rebuild_urgent_hints() {
+    m_urgent_desktops.assign(m_desktop_names.size(), false);
+    for (auto&& client : ewmh_util::get_client_list()) {
+      auto desk = ewmh_util::get_desktop_from_window(client);
+      m_urgent_desktops[desk] = m_urgent_desktops[desk] || icccm_util::get_wm_urgency(m_connection, client);
     }
   }
 
@@ -243,7 +256,9 @@ namespace modules {
 
     for (auto&& v : m_viewports) {
       for (auto&& d : v->desktops) {
-        if (d->index == m_current_desktop) {
+        if (m_urgent_desktops[d->index]) {
+          d->state = desktop_state::URGENT;
+        } else if (d->index == m_current_desktop) {
           d->state = desktop_state::ACTIVE;
         } else if (occupied_desks.count(d->index) > 0) {
           d->state = desktop_state::OCCUPIED;
@@ -275,30 +290,6 @@ namespace modules {
     return names;
   }
 
-  /**
-   * Find window and set corresponding desktop to urgent
-   */
-  void xworkspaces_module::set_desktop_urgent(xcb_window_t window) {
-    auto desk = ewmh_util::get_desktop_from_window(window);
-    if (desk == m_current_desktop)
-      // ignore if current desktop is urgent
-      return;
-    for (auto&& v : m_viewports) {
-      for (auto&& d : v->desktops) {
-        if (d->index == desk && d->state != desktop_state::URGENT) {
-          d->state = desktop_state::URGENT;
-
-          d->label = m_labels.at(d->state)->clone();
-          d->label->reset_tokens();
-          d->label->replace_token("%index%", to_string(d->index + 1));
-          d->label->replace_token("%name%", m_desktop_names[d->index]);
-          d->label->replace_token("%icon%", m_icons->get(m_desktop_names[d->index], DEFAULT_ICON)->get());
-          return;
-        }
-      }
-    }
-  }
-
   /**
    * Fetch and parse data
    */