winex11: Added tracking of the WM_STATE window property.

dlls/winex11.drv/event.c

@@ -583,33 +583,64 @@ static void EVENT_FocusOut( HWND hwnd, XEvent *xev )
 
 
 /***********************************************************************
+ *           get_window_wm_state
+ */
+int get_window_wm_state( Display *display, struct x11drv_win_data *data )
+{
+    struct
+    {
+        CARD32 state;
+        XID     icon;
+    } *state;
+    Atom type;
+    int format, ret = -1;
+    unsigned long count, remaining;
+
+    wine_tsx11_lock();
+    if (!XGetWindowProperty( display, data->whole_window, x11drv_atom(WM_STATE), 0,
+                             sizeof(*state)/sizeof(CARD32), False, x11drv_atom(WM_STATE),
+                             &type, &format, &count, &remaining, (unsigned char **)&state ))
+    {
+        if (type == x11drv_atom(WM_STATE) && format && count >= sizeof(*state)/(format/8))
+            ret = state->state;
+        XFree( state );
+    }
+    wine_tsx11_unlock();
+    return ret;
+}
+
+
+/***********************************************************************
  *           EVENT_PropertyNotify
- *   We use this to release resources like Pixmaps when a selection
- *   client no longer needs them.
  */
 static void EVENT_PropertyNotify( HWND hwnd, XEvent *xev )
 {
     XPropertyEvent *event = &xev->xproperty;
-  /* Check if we have any resources to free */
-  TRACE("Received PropertyNotify event:\n");
+    struct x11drv_win_data *data;
+
+    if (!hwnd) return;
+    if (!(data = X11DRV_get_win_data( hwnd ))) return;
 
     switch(event->state)
     {
     case PropertyDelete:
+        if (event->atom == x11drv_atom(WM_STATE))
         {
-      TRACE("\tPropertyDelete for atom %ld on window %ld\n",
-            event->atom, (long)event->window);
-      break;
+            data->wm_state = WithdrawnState;
+            TRACE( "%p/%lx: WM_STATE deleted\n", data->hwnd, data->whole_window );
         }
+        break;
 
     case PropertyNewValue:
+        if (event->atom == x11drv_atom(WM_STATE))
         {
-      TRACE("\tPropertyNewValue for atom %ld on window %ld\n\n",
-            event->atom, (long)event->window);
-      break;
+            int new_state = get_window_wm_state( event->display, data );
+            if (new_state != -1 && new_state != data->wm_state)
+            {
+                TRACE( "%p/%lx: new WM_STATE %d\n", data->hwnd, data->whole_window, new_state );
+                data->wm_state = new_state;
+            }
         }
-
-    default:
         break;
     }
 }

dlls/winex11.drv/window.c

@@ -200,7 +200,7 @@ static int get_window_attributes( Display *display, struct x11drv_win_data *data
     attr->event_mask        = (ExposureMask | PointerMotionMask |
                                ButtonPressMask | ButtonReleaseMask | EnterWindowMask |
                                KeyPressMask | KeyReleaseMask | FocusChangeMask | KeymapStateMask);
-    if (data->managed) attr->event_mask |= StructureNotifyMask;
+    if (data->managed) attr->event_mask |= StructureNotifyMask | PropertyChangeMask;
 
     return (CWOverrideRedirect | CWSaveUnder | CWColormap | CWCursor |
             CWEventMask | CWBitGravity | CWBackingStore);

dlls/winex11.drv/x11drv.h

@@ -559,6 +559,7 @@ enum x11drv_atoms
     XATOM_RAW_CAP_HEIGHT,
     XATOM_WM_PROTOCOLS,
     XATOM_WM_DELETE_WINDOW,
+    XATOM_WM_STATE,
     XATOM_WM_TAKE_FOCUS,
     XATOM_KWM_DOCKWINDOW,
     XATOM_DndProtocol,
@@ -669,6 +670,7 @@ struct x11drv_win_data
     XWMHints   *wm_hints;       /* window manager hints */
     BOOL        managed : 1;    /* is window managed? */
     BOOL        mapped : 1;     /* is window mapped? (in either normal or iconic state) */
+    int         wm_state;       /* current value of the WM_STATE property */
     DWORD       net_wm_state;   /* bit mask of active x11drv_net_wm_state values */
     unsigned int lock_changes;  /* lock count for X11 change requests */
     HBITMAP     hWMIconBitmap;

dlls/winex11.drv/x11drv_main.c

@@ -123,6 +123,7 @@ static const char * const atom_names[NB_XATOMS - FIRST_XATOM] =
     "RAW_CAP_HEIGHT",
     "WM_PROTOCOLS",
     "WM_DELETE_WINDOW",
+    "WM_STATE",
     "WM_TAKE_FOCUS",
     "KWM_DOCKWINDOW",
     "DndProtocol",