X-Git-Url: http://git.chise.org/gitweb/?p=chise%2Fxemacs-chise.git.1;a=blobdiff_plain;f=src%2Fselect-x.c;h=2ab3161ee2687878ecdb576684d0e8ba01c788ec;hp=21332fdf43e21eaef0c2a3e2fd8cee49e9fff962;hb=14ac73276fa152e8f0b74602792afc0b9c3236c9;hpb=ee38d21b330f5001b47a577cefb5ba7b82a3b7d3

diff --git a/src/select-x.c b/src/select-x.c
index 21332fd..2ab3161 100644
--- a/src/select-x.c
+++ b/src/select-x.c
@@ -509,14 +509,41 @@ x_reply_selection_request (XSelectionRequestEvent *event, int format,
     }
   else
     {
+#ifndef HAVE_XTREGISTERDRAWABLE
+      invalid_operation("Copying that much data requires X11R6.", Qunbound);
+#else
       /* Send an INCR selection. */
       int prop_id;
+      Widget widget = FRAME_X_TEXT_WIDGET (XFRAME(DEVICE_SELECTED_FRAME(d)));
 
       if (x_window_to_frame (d, window)) /* #### debug */
 	error ("attempt to transfer an INCR to ourself!");
 #if 0
       stderr_out ("\nINCR %d\n", bytes_remaining);
 #endif
+      /* Tell Xt not to drop PropertyNotify events that arrive for the
+	 target window, rather, pass them to us. This would be a hack, but
+	 the Xt selection routines are broken for our purposes--we can't
+	 pass them callbacks from Lisp, for example. Let's call it a
+	 workaround.
+ 
+	 The call to wait_for_property_change means we can break out of that
+	 function, switch to another frame on the same display (which will
+	 be another Xt widget), select a huge amount of text, and have the
+	 same (foreign) app ask for another incremental selection
+	 transfer. Programming like X11 made sense, would mean that, in that
+	 case, XtRegisterDrawable is called twice with different widgets.
+ 
+	 Since the results of calling XtRegisterDrawable when the drawable
+	 is already registered with another widget are undefined, we want to
+	 avoid that--so, only call it when XtWindowToWidget returns NULL,
+	 which it will only do with a valid Window if it's not already
+	 registered. */
+      if (NULL == XtWindowToWidget(display, window))
+      {
+	XtRegisterDrawable(display, (Drawable)window, widget);
+      }
+      
       prop_id = expect_property_change (display, window, reply.property,
 					PropertyDelete);
 
@@ -560,10 +587,14 @@ x_reply_selection_request (XSelectionRequestEvent *event, int format,
       stderr_out ("  INCR done\n");
 #endif
       if (! waiting_for_other_props_on_window (display, window))
-	XSelectInput (display, window, 0L);
+      {
+        XSelectInput (display, window, 0L);
+        XtUnregisterDrawable(display, (Drawable)window);
+      }
 
       XChangeProperty (display, window, reply.property, type, format,
 		       PropModeReplace, data, 0);
+#endif /* HAVE_XTREGISTERDRAWABLE */
     }
 }
 
@@ -1628,6 +1659,14 @@ Set the value of the named CUTBUFFER (typically CUT_BUFFER0) to STRING.
 	  continue;
 	}
 
+#ifdef UTF2000
+      if ((*ptr) <= 0xC3)
+	{
+	  chartypes = LATIN_1;
+	  ptr += 2;
+	  continue;
+	}
+#else
       if ((*ptr) == LEADING_BYTE_LATIN_ISO8859_1 ||
 	  (*ptr) == LEADING_BYTE_CONTROL_1)
 	{
@@ -1635,6 +1674,7 @@ Set the value of the named CUTBUFFER (typically CUT_BUFFER0) to STRING.
 	  ptr += 2;
 	  continue;
 	}
+#endif
 
       chartypes = WORLD;
       break;