X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6a5557396189e093fd63cc9fab5acd3d84a77e8b..8168167976dc3cc5f5223a21e1a62ba91a4f77b3:/src/gtk/app.cpp

diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp
index 5331f64a78..8eebbeb35c 100644
--- a/src/gtk/app.cpp
+++ b/src/gtk/app.cpp
@@ -135,7 +135,7 @@ bool wxApp::Yield(bool onlyIfNeeded)
 
     // We need to remove idle callbacks or the loop will
     // never finish.
-    wxTheApp->RemoveIdleTag();
+    RemoveIdleSource();
 
 #if wxUSE_LOG
     // disable log flushing from here because a call to wxYield() shouldn't
@@ -184,17 +184,34 @@ void wxApp::WakeUpIdle()
 extern "C"
 {
 
+// One-shot emission hook for "event" signal, to install idle handler.
+// This will be called when the "event" signal is issued on any GtkWidget object.
+static gboolean
+event_emission_hook(GSignalInvocationHint*, guint, const GValue*, gpointer)
+{
+    wxapp_install_idle_handler();
+    // remove hook
+    return false;
+}
+
+static inline void wxAddEmissionHook()
+{
+    // add emission hook for "event" signal, to re-install idle handler when needed
+    guint sig_id = g_signal_lookup("event", GTK_TYPE_WIDGET);
+    g_signal_add_emission_hook(sig_id, 0, event_emission_hook, NULL, NULL);
+}
+
 static gint wxapp_idle_callback( gpointer WXUNUSED(data) )
 {
     if (!wxTheApp)
-        return TRUE;
+        return false;
 
 #ifdef __WXDEBUG__
     // don't generate the idle events while the assert modal dialog is shown,
     // this completely confuses the apps which don't expect to be reentered
     // from some safely-looking functions
     if ( wxTheApp->IsInAssert() )
-        return TRUE;
+        return false;
 #endif // __WXDEBUG__
 
     // When getting called from GDK's time-out handler
@@ -222,6 +239,9 @@ static gint wxapp_idle_callback( gpointer WXUNUSED(data) )
     // Release lock again
     gdk_threads_leave();
 
+    if (!moreIdles)
+        wxAddEmissionHook();
+
     // Return FALSE if no more idle events are to be sent
     return moreIdles;
 }
@@ -583,15 +603,16 @@ void wxApp::OnAssertFailure(const wxChar *file,
 
 #endif // __WXDEBUG__
 
-void wxApp::RemoveIdleTag()
+void wxApp::RemoveIdleSource()
 {
 #if wxUSE_THREADS
     wxMutexLocker lock(gs_idleTagsMutex);
 #endif
-    if (!g_isIdle)
+    if (m_idleTag != 0)
     {
-        g_source_remove( wxTheApp->m_idleTag );
-        wxTheApp->m_idleTag = 0;
+        g_source_remove(m_idleTag);
+        m_idleTag = 0;
         g_isIdle = true;
+        wxAddEmissionHook();
     }
 }