winex11: Store a pointer to the X11 event currently being handled instead of a simple count.

dlls/winex11.drv/event.c

@@ -291,6 +291,8 @@ static inline void call_event_handler( Display *display, XEvent *event )
 {
     HWND hwnd;
     x11drv_event_handler handler;
+    XEvent *prev;
+    struct x11drv_thread_data *thread_data;
 
     if (!(handler = find_handler( event->type )))
     {
@@ -305,7 +307,11 @@ static inline void call_event_handler( Display *display, XEvent *event )
     TRACE( "%s for hwnd/window %p/%lx\n",
            dbgstr_event( event->type ), hwnd, event->xany.window );
     wine_tsx11_unlock();
+    thread_data = x11drv_thread_data();
+    prev = thread_data->current_event;
+    thread_data->current_event = event;
     handler( hwnd, event );
+    thread_data->current_event = prev;
     wine_tsx11_lock();
 }
 
@@ -364,9 +370,7 @@ DWORD X11DRV_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
                                          timeout, flags & MWMO_ALERTABLE );
     }
 
-    if (data->process_event_count) mask = 0;  /* don't process nested events */
-
-    data->process_event_count++;
+    if (data->current_event) mask = 0;  /* don't process nested events */
 
     if (process_events( data->display, filter_event, mask )) ret = count - 1;
     else if (count || timeout)
@@ -377,7 +381,6 @@ DWORD X11DRV_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
     }
     else ret = WAIT_TIMEOUT;
 
-    data->process_event_count--;
     return ret;
 }
 

dlls/winex11.drv/x11drv.h

@@ -499,7 +499,7 @@ struct x11drv_escape_set_drawable
 struct x11drv_thread_data
 {
     Display *display;
-    int      process_event_count;  /* recursion count for event processing */
+    XEvent  *current_event;        /* event currently being processed */
     Cursor   cursor;               /* current cursor */
     Window   cursor_window;        /* current window that contains the cursor */
     Window   grab_window;          /* window that currently grabs the mouse */

dlls/winex11.drv/x11drv_main.c

@@ -617,7 +617,7 @@ struct x11drv_thread_data *x11drv_init_thread_data(void)
 {
     struct x11drv_thread_data *data;
 
-    if (!(data = HeapAlloc( GetProcessHeap(), 0, sizeof(*data) )))
+    if (!(data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data) )))
     {
         ERR( "could not create data\n" );
         ExitProcess(1);
@@ -651,18 +651,10 @@ struct x11drv_thread_data *x11drv_init_thread_data(void)
     if (TRACE_ON(synchronous)) XSynchronize( data->display, True );
     wine_tsx11_unlock();
 
-    if (!use_xim)
-        data->xim = NULL;
-    else if (!(data->xim = X11DRV_SetupXIM( data->display, input_style )))
+    if (use_xim && !(data->xim = X11DRV_SetupXIM( data->display, input_style )))
         WARN("Input Method is not available\n");
 
     set_queue_display_fd( data->display );
-    data->process_event_count = 0;
-    data->cursor = None;
-    data->cursor_window = None;
-    data->grab_window = None;
-    data->last_focus = 0;
-    data->selection_wnd = 0;
     TlsSetValue( thread_data_tls_index, data );
     X11DRV_SetCursor( NULL );
     return data;