mshtml: Use unlink and destructor in the vtbl for HTMLSelectionObject.

dlls/mshtml/selection.c

@@ -93,14 +93,8 @@ static ULONG WINAPI HTMLSelectionObject_Release(IHTMLSelectionObject *iface)
 
     TRACE("(%p) ref=%ld\n", This, ref);
 
-    if(!ref) {
-        if(This->nsselection)
-            nsISelection_Release(This->nsselection);
-        if(This->doc)
-            list_remove(&This->entry);
+    if(!ref)
         release_dispex(&This->dispex);
-        free(This);
-    }
 
     return ref;
 }
@@ -329,6 +323,32 @@ static const IHTMLSelectionObject2Vtbl HTMLSelectionObject2Vtbl = {
     HTMLSelectionObject2_get_typeDetail
 };
 
+static inline HTMLSelectionObject *impl_from_DispatchEx(DispatchEx *iface)
+{
+    return CONTAINING_RECORD(iface, HTMLSelectionObject, dispex);
+}
+
+static void HTMLSelectionObject_unlink(DispatchEx *dispex)
+{
+    HTMLSelectionObject *This = impl_from_DispatchEx(dispex);
+    unlink_ref(&This->nsselection);
+    if(This->doc) {
+        This->doc = NULL;
+        list_remove(&This->entry);
+    }
+}
+
+static void HTMLSelectionObject_destructor(DispatchEx *dispex)
+{
+    HTMLSelectionObject *This = impl_from_DispatchEx(dispex);
+    free(This);
+}
+
+static const dispex_static_data_vtbl_t HTMLSelectionObject_dispex_vtbl = {
+    HTMLSelectionObject_destructor,
+    HTMLSelectionObject_unlink
+};
+
 static const tid_t HTMLSelectionObject_iface_tids[] = {
     IHTMLSelectionObject_tid,
     IHTMLSelectionObject2_tid,
@@ -336,7 +356,7 @@ static const tid_t HTMLSelectionObject_iface_tids[] = {
 };
 static dispex_static_data_t HTMLSelectionObject_dispex = {
     L"MSSelection",
-    NULL,
+    &HTMLSelectionObject_dispex_vtbl,
     IHTMLSelectionObject_tid, /* FIXME: We have a test for that, but it doesn't expose IHTMLSelectionObject2 iface. */
     HTMLSelectionObject_iface_tids
 };