mango: show focused window next to tags, fix mmsg lookup, 0.15.x compat

- new focused-window block ({icon} {app_id} - {title}) driven by the
  active_client field of mmsg watch all-monitors (mangowm >= 0.14)
- resolve program icons via freedesktop icon themes/.desktop files
  (new icon module, cairo png feature, cached per app_id)
- new show_focused_window config option (default true)
- run mmsg from PATH instead of hardcoded /usr/bin/mmsg (broken on NixOS)
- handle null active_client fields (no focused client) without failing
  to parse the whole event
- drop stale TODO comment and unused variable in mango provider
- add .justfile run recipe exporting MANGO_INSTANCE_SIGNATURE

1 files changed, 13 insertions, 0 deletions

diff --git a/src/state.rs b/src/state.rs
index 263f38c..ccd0d52 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -103,6 +103,7 @@ impl State {
                 config,
                 status_cmd,
                 blocks_cache: BlocksCache::default(),
+                icon_cache: Default::default(),
                 wm_info_provider,
             },
 
@@ -160,6 +161,11 @@ impl State {
         let mut bar = Bar::new(conn, self, output);
 
         bar.set_tags(self.shared_state.wm_info_provider.get_tags(&bar.output));
+        bar.set_focused_window(
+            self.shared_state
+                .wm_info_provider
+                .get_focused_window(&bar.output),
+        );
 
         if !self.hidden {
             bar.show(conn, &self.shared_state);
@@ -221,6 +227,13 @@ impl State {
         });
     }
 
+    pub fn focused_window_updated(&mut self, conn: &mut Connection<Self>, output: Option<WlOutput>) {
+        self.for_each_bar(output, |bar, ss| {
+            bar.set_focused_window(ss.wm_info_provider.get_focused_window(&bar.output));
+            bar.frame(conn, ss);
+        });
+    }
+
     pub fn mode_name_updated(&mut self, conn: &mut Connection<Self>, output: Option<WlOutput>) {
         self.for_each_bar(output, |bar, ss| {
             bar.set_mode_name(ss.wm_info_provider.get_mode_name(&bar.output));