More LibreOffice work.

internal/atspi/libreoffice_native.go

@@ -11,15 +11,31 @@ import "C"
 
 import "unsafe"
 
-// libreOfficeFocusTarget resolves only a Calc editor's direct text children.
-// F2 focuses its temporary panel; the paragraph can appear later, on typing.
+// libreOfficeFocusTarget resolves a Calc editor's direct text children and
+// preserves the sheet source for selection events. F2 focuses its temporary
+// panel; the paragraph can appear later, on typing.
 // The callback owns and releases the returned reference. No sheet is walked.
 func (adapter *Adapter) libreOfficeFocusTarget(event *C.AtspiEvent, eventType string) *C.AtspiAccessible {
-	if eventType != FocusEvent && eventType != FocusedStateEvent ||
+	if eventType != FocusEvent && eventType != FocusedStateEvent && eventType != SelectionChangedEvent ||
 		!IsLibreOfficeProcess(adapter.applicationProcess(event.source)) {
 		return nil
 	}
 	role := C.atspi_accessible_get_role(event.source, nil)
+	if eventType == SelectionChangedEvent {
+		// Keep the sheet as the selection source. Its first selected cell
+		// is not necessarily the active cell (and can be far offscreen).
+		if role == C.ATSPI_ROLE_TABLE {
+			parent := C.atspi_accessible_get_parent(event.source, nil)
+			if parent != nil {
+				spreadsheet := C.atspi_accessible_get_role(parent, nil) == C.ATSPI_ROLE_DOCUMENT_SPREADSHEET
+				C.g_object_unref(C.gpointer(parent))
+				if spreadsheet {
+					return (*C.AtspiAccessible)(C.g_object_ref(C.gpointer(event.source)))
+				}
+			}
+		}
+		return nil
+	}
 	if role == C.ATSPI_ROLE_TABLE {
 		parent := C.atspi_accessible_get_parent(event.source, nil)
 		if parent != nil {