wm: flush terminal window content on gaining focus

focus() only composites the title bar — the window content stays
stale until the next write.  Call term.flush() on Focus(true) so
the full window is re-composited immediately when switching to it.

2 files changed, 4 insertions, 1 deletions

diff --git a/rsnix/src/tty.rs b/rsnix/src/tty.rs
index c44dca8..ad33cb3 100644
--- a/rsnix/src/tty.rs
+++ b/rsnix/src/tty.rs
@@ -201,6 +201,9 @@ pub fn read_line_from_queue(term: &mut crate::vt::Terminal) -> Option<LineInput>
             crate::sched::TaskMsg::Focus(gained) => {
                 if gained {
                     crate::vt::set_active(term as *mut crate::vt::Terminal);
+                    // Re-composite the full window so content is visible
+                    // immediately (focus() only redraws the title bar).
+                    term.flush();
                 } else {
                     crate::vt::set_active(core::ptr::null_mut());
                 }
diff --git a/rsnix/src/vt.rs b/rsnix/src/vt.rs
index 0d7cf9b..d02cefa 100644
--- a/rsnix/src/vt.rs
+++ b/rsnix/src/vt.rs
@@ -552,7 +552,7 @@ impl Terminal {
         }
     }
 
-    fn flush(&mut self) {
+    pub fn flush(&mut self) {
         if self.pending_scrolls > 0 {
             return;
         }