Ensure that wxApp::Yield is always processing pending event by creating a

temporary event loop if needed.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@53606 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/x11/app.cpp

@@ -793,14 +793,7 @@ bool wxApp::Yield(bool onlyIfNeeded)
 
         // Make sure we have an event loop object,
         // or Pending/Dispatch will fail
-        wxEventLoopBase * const eventLoop = wxEventLoop::GetActive();
-        wxEventLoop* newEventLoop = NULL;
-        if (!eventLoop)
-        {
-            newEventLoop = new wxEventLoop;
-            wxEventLoop::SetActive(newEventLoop);
-        }
-
+	wxEventLoopGuarantor dummyLoopIfNeeded;
         // Call dispatch at least once so that sockets
         // can be tested
         wxTheApp->Dispatch();
@@ -813,12 +806,6 @@ bool wxApp::Yield(bool onlyIfNeeded)
 #endif
         ProcessIdle();
 
-        if (newEventLoop)
-        {
-            wxEventLoop::SetActive(NULL);
-            delete newEventLoop;
-        }
-
         s_inYield = false;
     }