XQuartz: Fix issue where clicking on an X11 window might send that event to an X11 window in another space.

(cherry picked from commit df21312c8b)

configure.ac

@@ -1714,7 +1714,8 @@ if test "X$XQUARTZ" = Xauto; then
 fi
 
 if test "x$XQUARTZ" = xyes; then
-	AC_DEFINE([XQUARTZ],[1],[Have Quartz])
+	AC_DEFINE(XQUARTZ,1,[Have Quartz])
+	AC_DEFINE(ROOTLESS,1,[Build Rootless code])
 
 #glxAGL / glxCGL don't work yet
 #	AC_CACHE_CHECK([for AGL framework],xorg_cv_AGL_framework,[

dix/events.c

@@ -2170,6 +2170,13 @@ XYToWindow(int x, int y)
 				wInputShape(pWin),
 				x - pWin->drawable.x,
 				y - pWin->drawable.y, &box))
+#endif
+#ifdef ROOTLESS
+    /* In rootless mode windows may be offscreen, even when
+     * they're in X's stack. (E.g. if the native window system
+     * implements some form of virtual desktop system).
+     */
+		&& !pWin->rootlessUnhittable
 #endif
 	    )
 	{

dix/window.c

@@ -292,6 +292,9 @@ SetWindowToDefaults(WindowPtr pWin)
     pWin->forcedBS = FALSE;
     pWin->redirectDraw = RedirectDrawNone;
     pWin->forcedBG = FALSE;
+#ifdef ROOTLESS
+    pWin->rootlessUnhittable = FALSE;
+#endif
 }
 
 static void

hw/xquartz/darwinEvents.c

@@ -56,6 +56,10 @@ in this Software without prior written authorization from The Open Group.
 #include "applewmExt.h"
 #include <X11/extensions/applewm.h>
 
+/* FIXME: Abstract this away into xpr */
+#include <Xplugin.h>
+#include "rootlessWindow.h"
+WindowPtr xprGetXWindow(xp_window_id wid);
 
 /* Fake button press/release for scroll wheel move. */
 #define SCROLLWHEELUPFAKE   4
@@ -228,7 +232,7 @@ void DarwinEventHandler(int screenNum, xEventPtr xe, DeviceIntPtr dev, int neven
 
         case kXquartzWindowState:
             DEBUG_LOG("kXquartzWindowState\n");
-            RootlessNativeWindowStateChanged(xe[i].u.clientMessage.u.l.longs0,
+            RootlessNativeWindowStateChanged(xprGetXWindow(xe[i].u.clientMessage.u.l.longs0),
                                              xe[i].u.clientMessage.u.l.longs1);
             break;
 

hw/xquartz/quartz.c

@@ -52,7 +52,6 @@
 #include "windowstr.h"
 #include "colormapst.h"
 #include "globals.h"
-#include "rootlessWindow.h"
 
 // System headers
 #include <sys/types.h>

include/windowstr.h

@@ -160,6 +160,9 @@ typedef struct _Window {
     unsigned		forcedBS:1;	/* system-supplied backingStore */
     unsigned		redirectDraw:2;	/* COMPOSITE rendering redirect */
     unsigned		forcedBG:1;	/* must have an opaque background */
+#ifdef ROOTLESS
+    unsigned		rootlessUnhittable:1;	/* doesn't hit-test */
+#endif
 } WindowRec;
 
 /*

miext/rootless/rootlessWindow.c

@@ -117,12 +117,10 @@ rootlessHasRoot (ScreenPtr pScreen)
 }
 
 void
-RootlessNativeWindowStateChanged (xp_window_id id, unsigned int state)
+RootlessNativeWindowStateChanged (WindowPtr pWin, unsigned int state)
 {
-  WindowPtr pWin;
   RootlessWindowRec *winRec;
 
-  pWin = xprGetXWindow (id);
   if (pWin == NULL) return;
 
   winRec = WINREC (pWin);
@@ -130,7 +128,7 @@ RootlessNativeWindowStateChanged (xp_window_id id, unsigned int state)
 
   winRec->is_offscreen = ((state & XP_WINDOW_STATE_OFFSCREEN) != 0);
   winRec->is_obscured = ((state & XP_WINDOW_STATE_OBSCURED) != 0);
-  //  pWin->rootlessUnhittable = winRec->is_offscreen;
+  pWin->rootlessUnhittable = winRec->is_offscreen;
 }
 
 void
@@ -143,7 +141,7 @@ RootlessNativeWindowMoved (WindowPtr pWin)
   ClientPtr client;
   RootlessWindowRec *winRec = WINREC(pWin);
 
-  if (xp_get_window_bounds (winRec->wid, &bounds) != Success) return;
+  if (xp_get_window_bounds ((xp_window_id)winRec->wid, &bounds) != Success) return;
 
   sx = dixScreenOrigins[pWin->drawable.pScreen->myNum].x + darwinMainScreenX;
   sy = dixScreenOrigins[pWin->drawable.pScreen->myNum].y + darwinMainScreenY;
@@ -1426,6 +1424,10 @@ RootlessReparentWindow(WindowPtr pWin, WindowPtr pPriorParent)
 
     pTopWin = TopLevelParent(pWin);
     assert(pTopWin != pWin);
+    
+    pWin->rootlessUnhittable = FALSE;
+    
+    DeleteProperty (pWin, xa_native_window_id ());
 
     if (WINREC(pTopWin) != NULL) {
         /* We're screwed. */
@@ -1482,7 +1484,7 @@ RootlessFlushWindowColormap (WindowPtr pWin)
   wc.colormap = RootlessColormapCallback;
   wc.colormap_data = pWin->drawable.pScreen;
 
-  configure_window (winRec->wid, XP_COLORMAP, &wc);
+  configure_window ((xp_window_id)winRec->wid, XP_COLORMAP, &wc);
 }
 
 /*

miext/rootless/rootlessWindow.h

@@ -36,8 +36,6 @@
 
 #include "rootlessCommon.h"
 
-#include <Xplugin.h>
-
 Bool RootlessCreateWindow(WindowPtr pWin);
 Bool RootlessDestroyWindow(WindowPtr pWin);
 
@@ -57,6 +55,6 @@ void RootlessResizeWindow(WindowPtr pWin, int x, int y,
 void RootlessReparentWindow(WindowPtr pWin, WindowPtr pPriorParent);
 void RootlessChangeBorderWidth(WindowPtr pWin, unsigned int width);
 void RootlessNativeWindowMoved (WindowPtr pWin);
-void RootlessNativeWindowStateChanged (xp_window_id id, unsigned int state); 
+void RootlessNativeWindowStateChanged (WindowPtr pWin, unsigned int state); 
 
 #endif