fix: forward pane terminal bells (#2498)

refs #2453

Co-authored-by: akbash-bot <300245827+akbash-bot@users.noreply.github.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/src/ghostty/mod.rs b/src/ghostty/mod.rs
index 04ad87af..93efbd76 100644
--- a/src/ghostty/mod.rs
+++ b/src/ghostty/mod.rs
@@ -470,12 +470,22 @@ const MAX_CLIPBOARD_BYTES: usize = 192 * 1024;
 #[derive(Default)]
 struct TerminalCallbackState {
     write_pty: Option<Box<WritePtyCallback>>,
+    bell_count: u16,
     pwd_changes: Vec<Vec<u8>>,
     clipboard_writes: Vec<Vec<u8>>,
     size_report: ffi::GhosttySizeReportSize,
     color_scheme: Option<ColorScheme>,
 }
 
+unsafe extern "C" fn bell_trampoline(_terminal: ffi::GhosttyTerminal, userdata: *mut c_void) {
+    if userdata.is_null() {
+        return;
+    }
+    // SAFETY: userdata is the TerminalCallbackState installed with this terminal.
+    let state = unsafe { &mut *userdata.cast::<TerminalCallbackState>() };
+    state.bell_count = state.bell_count.saturating_add(1);
+}
+
 unsafe extern "C" fn color_scheme_trampoline(
     _terminal: ffi::GhosttyTerminal,
     userdata: *mut c_void,
@@ -822,6 +832,12 @@ impl Terminal {
             .into_result()?;
             ffi::ghostty_terminal_set(
                 terminal.raw,
+                ffi::GhosttyTerminalOption_GHOSTTY_TERMINAL_OPT_BELL,
+                (bell_trampoline as *const ()).cast(),
+            )
+            .into_result()?;
+            ffi::ghostty_terminal_set(
+                terminal.raw,
                 ffi::GhosttyTerminalOption_GHOSTTY_TERMINAL_OPT_PWD_CHANGED,
                 (pwd_changed_trampoline as *const ()).cast(),
             )
@@ -979,6 +995,10 @@ impl Terminal {
         mem::replace(&mut self.callback_state.color_scheme, color_scheme)
     }
 
+    pub fn take_bell_count(&mut self) -> u16 {
+        mem::take(&mut self.callback_state.bell_count)
+    }
+
     pub fn take_pwd_changes(&mut self) -> Vec<Vec<u8>> {
         mem::take(&mut self.callback_state.pwd_changes)
     }