windows: Properly handle dead char (#30629)

张小白 created 7 months ago

Release Notes:

- N/A

Change summary

crates/gpui/src/platform/windows/events.rs | 9 +++++++++
1 file changed, 9 insertions(+)

Detailed changes

crates/gpui/src/platform/windows/events.rs

@@ -89,6 +89,7 @@ pub(crate) fn handle_msg(
         WM_KEYDOWN => handle_keydown_msg(wparam, lparam, state_ptr),
         WM_KEYUP => handle_keyup_msg(wparam, state_ptr),
         WM_CHAR => handle_char_msg(wparam, lparam, state_ptr),
+        WM_DEADCHAR => handle_dead_char_msg(wparam, state_ptr),
         WM_IME_STARTCOMPOSITION => handle_ime_position(handle, state_ptr),
         WM_IME_COMPOSITION => handle_ime_composition(handle, lparam, state_ptr),
         WM_SETCURSOR => handle_set_cursor(lparam, state_ptr),
@@ -512,6 +513,14 @@ fn handle_char_msg(
     Some(0)
 }
 
+fn handle_dead_char_msg(wparam: WPARAM, state_ptr: Rc<WindowsWindowStatePtr>) -> Option<isize> {
+    let ch = char::from_u32(wparam.0 as u32)?.to_string();
+    with_input_handler(&state_ptr, |input_handler| {
+        input_handler.replace_and_mark_text_in_range(None, &ch, None);
+    });
+    None
+}
+
 fn handle_mouse_down_msg(
     handle: HWND,
     button: MouseButton,