wxMac merge

[wxWidgets.git] / src / mac / macnotfy.cpp

diff --git a/src/mac/macnotfy.cpp b/src/mac/macnotfy.cpp
new file mode 100644 (file)
index 0000000..3546eeb
--- /dev/null
+++ b/src/mac/macnotfy.cpp
@@ -0,0 +1,137 @@
+/* -------------------------------------------------------------------------
+ * Project: Mac Notifier Support
+ * Name:    macnotfy.c
+ * Author:  Stefan CSomor
+ * Purpose: Mac Notifier main file
+ * CVSID:   $Id$
+ * -------------------------------------------------------------------------
+ */
+
+#include "wx/mac/macnotfy.h"
+
+const short kMaxEvents = 1000 ;
+
+struct wxMacNotificationEvents
+{
+       short top ;
+       short bottom ;
+       
+       wxMacNotificationProcPtr proc[kMaxEvents] ;
+       unsigned long events[kMaxEvents] ;
+       void* data[kMaxEvents] ;
+} ;
+
+typedef struct wxMacNotificationEvents wxMacNotificationEvents ;
+wxMacNotificationEvents gMacNotificationEvents ;
+
+ProcessSerialNumber gSocketProcess ;
+
+void wxMacWakeUp()
+{
+       ProcessSerialNumber psn ;
+       Boolean isSame ;
+       psn.highLongOfPSN = 0 ;
+       psn.lowLongOfPSN = kCurrentProcess ;
+       SameProcess( &gSocketProcess , &psn , &isSame ) ;
+       if ( isSame )
+       {
+               PostEvent( nullEvent , 0 ) ;
+       }
+       else
+       {
+               WakeUpProcess( &gSocketProcess ) ;
+       }
+}
+
+void wxMacCreateNotifierTable()
+{
+       GetCurrentProcess(&gSocketProcess);
+       gMacNotificationEvents.top = 0 ;
+       gMacNotificationEvents.bottom = 0 ;
+       for ( int i = 0 ; i < kMaxEvents ; ++i )
+       {
+               gMacNotificationEvents.proc[i] = NULL ;
+               gMacNotificationEvents.events[i] = NULL ;
+               gMacNotificationEvents.data[i] = NULL ;
+       }
+}
+
+void wxMacDestroyNotifierTable() 
+{
+       wxASSERT( gMacNotificationEvents.top == gMacNotificationEvents.bottom ) ;
+}
+
+wxMacNotifierTableRef wxMacGetNotifierTable() 
+{
+       return (wxMacNotifierTableRef) &gMacNotificationEvents ;
+}
+
+void wxMacAddEvent( 
+       wxMacNotifierTableRef table , 
+       wxMacNotificationProcPtr handler , 
+       unsigned long event , 
+       void* data , 
+       short wakeUp ) 
+{
+       wxMacNotificationEvents *e = (wxMacNotificationEvents *) table ;
+       /* this should be protected eventually */
+       short index = e->top++ ;
+       
+       if ( e->top == kMaxEvents )
+               e->top = 0 ;
+
+       e->proc[index] = handler ;
+       e->events[index] = event ;
+       e->data[index] = data ;
+       if ( wakeUp )
+               wxMacWakeUp() ;
+}
+
+bool gInProcessing = false ;
+
+void wxMacRemoveAllNotifiersForData( wxMacNotifierTableRef table , void* data ) 
+{
+       wxMacNotificationEvents *e = (wxMacNotificationEvents *) table ;
+       /* this should be protected eventually */
+       short index = e->bottom ;
+       
+  while ( e->top != index )
+  {
+    if ( index == kMaxEvents )
+      index = 0 ;
+    if ( e->data[index] == data )
+       e->data[index] = NULL ;
+       index++ ;
+  }
+}
+
+void wxMacProcessNotifierEvents()
+{
+//  if ( gInProcessing )
+//     return ;
+       
+  gInProcessing = true ;
+  while ( gMacNotificationEvents.top != gMacNotificationEvents.bottom )
+  {
+    // consume event at bottom
+       short index = gMacNotificationEvents.bottom++ ;
+    if ( gMacNotificationEvents.bottom == kMaxEvents )
+      gMacNotificationEvents.bottom = 0 ;
+    void* data = gMacNotificationEvents.data[index] ;
+    unsigned long event = gMacNotificationEvents.events[index] ;
+       wxMacNotificationProcPtr handler =  gMacNotificationEvents.proc[index] ;
+       
+       gMacNotificationEvents.data[index] = NULL ;
+       gMacNotificationEvents.events[index] = NULL ;
+       gMacNotificationEvents.proc[index]  = NULL ;
+    
+       handler( event , data  ) ;
+  }
+  gInProcessing = false ;
+}
+
+void wxMacProcessNotifierAndPendingEvents() 
+{
+       wxMacProcessNotifierEvents() ;
+       wxTheApp->ProcessPendingEvents() ;
+}