From bedcd855a277e9ad853c6e35391efbd0a76b6e6b Mon Sep 17 00:00:00 2001
From: Joel Bosveld <Joel.Bosveld@gmail.com>
Date: Fri, 14 Aug 2009 05:20:09 +0800
Subject: patches: add redirection to the gtk patch.

---
 patches/gtk+.patch | 191 ++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 161 insertions(+), 30 deletions(-)

diff --git a/patches/gtk+.patch b/patches/gtk+.patch
index a0691ff..a54dbc8 100644
--- a/patches/gtk+.patch
+++ b/patches/gtk+.patch
@@ -1,45 +1,176 @@
-From dc001c9a257ba6f96687d52336adf0c3e3505e7a Mon Sep 17 00:00:00 2001
+From dc1d1934931d4659d9371b8442efd53a9aa60106 Mon Sep 17 00:00:00 2001
 From: Joel Bosveld <Joel.Bosveld@gmail.com>
 Date: Mon, 13 Jul 2009 18:14:01 +0800
 Subject: [PATCH] Make drag and drop work correctly with transformed top level windows
 
 ---
- gdk/x11/gdkdnd-x11.c |   17 +++++++++++++----
- gdk/x11/gdkx.h       |    2 ++
- gtk/gtkdnd.c         |   25 ++++++++++++++++++++-----
- 3 files changed, 35 insertions(+), 9 deletions(-)
+ gdk/x11/gdkdnd-x11.c |  130 ++++++++++++++++++++++++++++++++++++++++++++++++--
+ gdk/x11/gdkx.h       |    2 +
+ gtk/gtkdnd.c         |   25 ++++++++--
+ 3 files changed, 148 insertions(+), 9 deletions(-)
 
 diff --git a/gdk/x11/gdkdnd-x11.c b/gdk/x11/gdkdnd-x11.c
-index 118d793..cb4e6f8 100644
+index 118d793..299e12d 100644
 --- a/gdk/x11/gdkdnd-x11.c
 +++ b/gdk/x11/gdkdnd-x11.c
-@@ -591,13 +591,22 @@ get_client_window_at_coords (GdkWindowCache *cache,
+@@ -40,6 +40,10 @@
+ #include "gdkdisplay-x11.h"
+ #include "gdkalias.h"
  
-       if ((child->xid != ignore) && (child->mapped))
- 	{
--	  if ((x_root >= child->x) && (x_root < child->x + child->width) &&
--	      (y_root >= child->y) && (y_root < child->y + child->height))
-+	  gint x,y;
-+#ifdef TRANSFORMATION
-+	  Window c;
-+	  Display *d = gdk_x11_display_get_xdisplay (gdk_screen_get_display (cache->screen));
-+	  Window root = GDK_WINDOW_XID (gdk_screen_get_root_window (cache->screen));
-+	  XTranslateCoordinates (d, root, child->xid, x_root, y_root, &x, &y, &c);
-+#else
-+	  x = root_x - child->x;
-+	  y = root_y - child->y;
++#ifdef HAVE_XCOMPOSITE
++#include <X11/extensions/Xcomposite.h>
++#endif
++
+ typedef struct _GdkDragContextPrivateX11 GdkDragContextPrivateX11;
+ 
+ typedef enum {
+@@ -519,6 +523,77 @@ gdk_window_cache_destroy (GdkWindowCache *cache)
+ }
+ 
+ static Window
++findTheRightWindow (GdkDisplay *dpy, int x, int y, Window w, Window t /*Probably the child */, Window ignore)
++{
++    int cx, cy;
++    /* d is the destination window, if the window is redirecting */
++    Window ret = 0, d = 0;
++
++#ifdef HAVE_XCOMPOSITE
++    if (gdk_display_supports_composite (dpy))
++        d = XCompositeGetDestinationWindow (GDK_DISPLAY_XDISPLAY(dpy), w);
 +#endif
 +
-+	  if ((x >= 0) && (x < child->width) && (y >= 0) && (y < child->height))
- 	    {
- 	      retval = get_client_window_at_coords_recurse (gdk_screen_get_display (cache->screen),
- 							    child->xid, TRUE,
--							    x_root - child->x,
--							    y_root - child->y);
-+							    x, y);
- 	      if (!retval)
- 		retval = child->xid;
- 	    }
++    if (d) {
++        w = d;
++        t = 0;
++    }
++
++    /* Child needs to be skipped, so find the real child */
++    if (d || (t && t == ignore)) {
++        Window root, p;
++        Window *c;
++        uint nc;
++        t = 0;
++        if (XQueryTree(GDK_DISPLAY_XDISPLAY(dpy), w, &root, &p, &c, &nc)) {
++            unsigned i;
++            for (i=nc; i--;) {
++                Window cg;
++                XWindowAttributes attr;
++
++                if (c[i] == ignore) continue;
++
++                XGetWindowAttributes(GDK_DISPLAY_XDISPLAY(dpy), c[i], &attr);
++                XTranslateCoordinates(GDK_DISPLAY_XDISPLAY(dpy), w, c[i], x, y, &cx, &cy, &cg);
++
++                if (attr.map_state == IsUnmapped) continue;
++
++                if (cx>=0 && cy>=0 && cx<attr.width && cy<attr.height) {
++                    ret = findTheRightWindow (dpy, cx, cy, c[i], cg, ignore);
++                    break;
++                }
++            }
++            if (c) XFree (c);
++        }
++    }
++    else if (t)
++    {
++        Window cg;
++        XTranslateCoordinates(GDK_DISPLAY_XDISPLAY(dpy), w, t, x, y, &cx, &cy, &cg);
++        ret = findTheRightWindow (dpy, cx, cy, t, cg, ignore);
++    }
++
++    /* We've already found the deepest window with the correct property */
++    if (ret) 
++        return ret;
++
++    Atom type = 0;
++    Atom wm_state_atom = gdk_x11_get_xatom_by_name_for_display (dpy, "WM_STATE");
++    int f;
++    unsigned long n, a;
++    unsigned char *data;
++
++    XGetWindowProperty(GDK_DISPLAY_XDISPLAY(dpy), w, wm_state_atom, 0, 0,
++                       False, AnyPropertyType, &type, &f,&n,&a,&data);
++    if (data)
++        XFree(data);
++    if (type)
++        return w;
++
++    return 0;
++}
++
++static Window
+ get_client_window_at_coords_recurse (GdkDisplay *display,
+ 				     Window      win,
+ 				     gboolean    is_toplevel,
+@@ -573,10 +648,10 @@ get_client_window_at_coords_recurse (GdkDisplay *display,
+ }
+ 
+ static Window 
+-get_client_window_at_coords (GdkWindowCache *cache,
+-			     Window          ignore,
+-			     gint            x_root,
+-			     gint            y_root)
++get_client_window_at_coords_old (GdkWindowCache *cache,
++				 Window          ignore,
++				 gint            x_root,
++				 gint            y_root)
+ {
+   GList *tmp_list;
+   Window retval = None;
+@@ -614,6 +689,53 @@ get_client_window_at_coords (GdkWindowCache *cache,
+     return GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (cache->screen));
+ }
+ 
++static Window 
++get_client_window_at_coords (GdkWindowCache *cache,
++			     Window          ignore,
++			     gint            x_root,
++			     gint            y_root)
++{
++  GdkDisplay *dpy = gdk_screen_get_display (cache->screen);
++  Window ret, r, t;
++  int x, y;
++
++  if (g_getenv ("GTK_USE_OLD_DND_PATH"))
++      return get_client_window_at_coords_old (cache, ignore, x_root, y_root);
++
++  r = GDK_WINDOW_XWINDOW (gdk_screen_get_root_window (cache->screen));
++
++  XTranslateCoordinates(GDK_DISPLAY_XDISPLAY(dpy), r, r, x_root, y_root, &x, &y, &t);
++  ret = findTheRightWindow (dpy, x_root, y_root, r, t, ignore);
++  if (!ret)
++    {
++      if (t && t != ignore)
++        ret = t;
++      else if (t) // t == ignore
++	{
++	  GList *tmp_list = cache->children;
++	  while (tmp_list)
++	    {
++	      GdkCacheChild *child = tmp_list->data;
++
++	      if ((child->xid != ignore) && (child->mapped))
++		{
++	          if ((x_root >= child->x) && (x_root < child->x + child->width) &&
++	              (y_root >= child->y) && (y_root < child->y + child->height))
++		    {
++		      ret = child->xid;
++		      break;
++		    }
++	  
++		}
++	      tmp_list = tmp_list->next;
++	    }
++	}
++      if (!ret)
++        ret = r;
++    }
++  return ret;
++}
++
+ /*************************************************************
+  ***************************** MOTIF *************************
+  *************************************************************/
 diff --git a/gdk/x11/gdkx.h b/gdk/x11/gdkx.h
 index baa395d..6519a2d 100644
 --- a/gdk/x11/gdkx.h
-- 
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