Ensure that component levels map is initialized before it's used (closes #10990).

[wxWidgets.git] / src / common / evtloopcmn.cpp

diff --git a/src/common/evtloopcmn.cpp b/src/common/evtloopcmn.cpp
index 5cdd2549754a4337745cd3b1f8d3a0a51452c658..15813725a8843c9374f707529074942df0cc27a9 100644 (file)
--- a/src/common/evtloopcmn.cpp
+++ b/src/common/evtloopcmn.cpp
@@ -9,14 +9,6 @@
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
-// ============================================================================
-// declarations
-// ============================================================================
-
-// ----------------------------------------------------------------------------
-// headers
-// ----------------------------------------------------------------------------
-
 // for compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -26,14 +18,82 @@
 
 #include "wx/evtloop.h"
 
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+#endif //WX_PRECOMP
+
 // ----------------------------------------------------------------------------
-// globals
+// wxEventLoopBase
 // ----------------------------------------------------------------------------
 
-wxEventLoop *wxEventLoopBase::ms_activeLoop = NULL;
+wxEventLoopBase *wxEventLoopBase::ms_activeLoop = NULL;
+
+wxEventLoopBase::wxEventLoopBase()
+{
+    m_isInsideYield = false;
+    m_eventsToProcessInsideYield = wxEVT_CATEGORY_ALL;
+}
+
+bool wxEventLoopBase::IsMain() const
+{
+    if (wxTheApp)
+        return wxTheApp->GetMainLoop() == this;
+    return false;
+}
+
+/* static */
+void wxEventLoopBase::SetActive(wxEventLoopBase* loop)
+{
+    ms_activeLoop = loop;
+
+    if (wxTheApp)
+        wxTheApp->OnEventLoopEnter(loop);
+}
+
+void wxEventLoopBase::OnExit()
+{
+    if (wxTheApp)
+        wxTheApp->OnEventLoopExit(this);
+}
+
+void wxEventLoopBase::WakeUpIdle()
+{
+    WakeUp();
+}
+
+bool wxEventLoopBase::ProcessIdle()
+{
+    if (!wxTheApp)
+        return false;
+
+    // process pending wx events before sending idle events
+    wxTheApp->ProcessPendingEvents();
+
+    // synthetize an idle event and send it to wxApp
+    wxIdleEvent event;
+    event.SetEventObject(wxTheApp);
+    wxTheApp->ProcessEvent(event);
+
+    return event.MoreRequested();
+}
+
+bool wxEventLoopBase::Yield(bool onlyIfNeeded)
+{
+    if ( m_isInsideYield )
+    {
+        if ( !onlyIfNeeded )
+        {
+            wxFAIL_MSG( wxT("wxYield called recursively" ) );
+        }
+
+        return false;
+    }
+
+    return YieldFor(wxEVT_CATEGORY_ALL);
+}
 
 // wxEventLoopManual is unused in the other ports
-#if defined(__WXMSW__) || defined(__WXMAC__)
+#if defined(__WXMSW__) || defined(__WXMAC__) || defined(__WXDFB__) || (defined(__UNIX__) && wxUSE_BASE)
 
 // ============================================================================
 // wxEventLoopManual implementation
@@ -53,7 +113,7 @@ int wxEventLoopManual::Run()
     // ProcessIdle() and Dispatch() below may throw so the code here should
     // be exception-safe, hence we must use local objects for all actions we
     // should undo
-    wxEventLoopActivator activate(wx_static_cast(wxEventLoop *, this));
+    wxEventLoopActivator activate(this);
 
     // we must ensure that OnExit() is called even if an exception is thrown
     // from inside Dispatch() but we must call it from Exit() in normal
@@ -148,5 +208,5 @@ void wxEventLoopManual::Exit(int rc)
     WakeUp();
 }
 
-#endif // __WXMSW__ || __WXMAC__
+#endif // __WXMSW__ || __WXMAC__ || __WXDFB__