--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/select-gtk.c	Mon Aug 13 11:44:37 2007 +0200
@@ -0,0 +1,946 @@
+/* GTK selection processing for XEmacs
+   Copyright (C) 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+
+This file is part of XEmacs.
+
+XEmacs is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+XEmacs is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: Not synched with FSF. */
+
+/* Authorship:
+
+   Written by Kevin Gallo for FSF Emacs.
+   Rewritten for mswindows by Jonathan Harris, December 1997 for 21.0.
+   Rewritten for GTK by William Perry, April 2000 for 21.1
+ */
+
+
+#include <config.h>
+#include "lisp.h"
+#include "events.h"
+#include "buffer.h"
+#include "device.h"
+#include "console-gtk.h"
+#include "select.h"
+#include "opaque.h"
+#include "frame.h"
+
+static Lisp_Object Vretrieved_selection;
+static gboolean waiting_for_selection;
+Lisp_Object Vgtk_sent_selection_hooks;
+
+static Lisp_Object atom_to_symbol (struct device *d, GdkAtom atom);
+static GdkAtom symbol_to_gtk_atom (struct device *d, Lisp_Object sym, int only_if_exists);
+
+static void lisp_data_to_selection_data (struct device *,
+					 Lisp_Object obj,
+					 unsigned char **data_ret,
+					 GdkAtom *type_ret,
+					 unsigned int *size_ret,
+					 int *format_ret);
+static Lisp_Object selection_data_to_lisp_data (struct device *,
+						Extbyte *data,
+						size_t size,
+						GdkAtom type,
+						int format);
+
+/* Set the selection data to GDK_NONE and NULL data, meaning we were
+** unable to do what they wanted.
+*/
+static void
+gtk_decline_selection_request (GtkSelectionData *data)
+{
+  gtk_selection_data_set (data, GDK_NONE, 0, NULL, 0);
+}
+
+/* Used as an unwind-protect clause so that, if a selection-converter signals
+   an error, we tell the requestor that we were unable to do what they wanted
+   before we throw to top-level or go into the debugger or whatever.
+ */
+struct _selection_closure
+{
+  GtkSelectionData *data;
+  gboolean successful;
+};
+
+static Lisp_Object
+gtk_selection_request_lisp_error (Lisp_Object closure)
+{
+  struct _selection_closure *cl = (struct _selection_closure *)
+    get_opaque_ptr (closure);
+
+  free_opaque_ptr (closure);
+  if (cl->successful == TRUE)
+    return Qnil;
+  gtk_decline_selection_request (cl->data);
+  return Qnil;
+}
+
+/* This provides the current selection to a requester.
+**
+** This is connected to the selection_get() signal of the application
+** shell in device-gtk.c:gtk_init_device().
+**
+** This is radically different than the old selection code (21.1.x),
+** but has been modeled after the X code, and appears to work.
+**
+** WMP Feb 12 2001
+*/
+void
+emacs_gtk_selection_handle (GtkWidget *widget,
+			    GtkSelectionData *selection_data,
+			    guint info,
+			    guint time_stamp,
+			    gpointer data)
+{
+  /* This function can GC */
+  struct gcpro gcpro1, gcpro2;
+  Lisp_Object temp_obj;
+  Lisp_Object selection_symbol;
+  Lisp_Object target_symbol = Qnil;
+  Lisp_Object converted_selection = Qnil;
+  guint32 local_selection_time;
+  Lisp_Object successful_p = Qnil;
+  int count;
+  struct device *d = decode_gtk_device (Qnil);
+  struct _selection_closure *cl = NULL;
+
+  GCPRO2 (converted_selection, target_symbol);
+
+  selection_symbol = atom_to_symbol (d, selection_data->selection);
+  target_symbol = atom_to_symbol (d, selection_data->target);
+
+#if 0 /* #### MULTIPLE doesn't work yet */
+  if (EQ (target_symbol, QMULTIPLE))
+    target_symbol = fetch_multiple_target (selection_data);
+#endif
+
+  temp_obj = Fget_selection_timestamp (selection_symbol);
+
+  if (NILP (temp_obj))
+    {
+      /* We don't appear to have the selection. */
+      gtk_decline_selection_request (selection_data);
+
+      goto DONE_LABEL;
+    }
+
+  local_selection_time = * (guint32 *) XOPAQUE_DATA (temp_obj);
+
+  if (time_stamp != GDK_CURRENT_TIME &&
+      local_selection_time > time_stamp)
+    {
+      /* Someone asked for the selection, and we have one, but not the one
+	 they're looking for. */
+      gtk_decline_selection_request (selection_data);
+      goto DONE_LABEL;
+    }
+
+  converted_selection = select_convert_out (selection_symbol,
+					    target_symbol, Qnil);
+
+  /* #### Is this the right thing to do? I'm no X expert. -- ajh */
+  if (NILP (converted_selection))
+    {
+      /* We don't appear to have a selection in that data type. */
+      gtk_decline_selection_request (selection_data);
+      goto DONE_LABEL;
+    }
+
+  count = specpdl_depth ();
+
+  cl = (struct _selection_closure *) xmalloc (sizeof (*cl));
+  cl->data = selection_data;
+  cl->successful = FALSE;
+
+  record_unwind_protect (gtk_selection_request_lisp_error,
+			 make_opaque_ptr (cl));
+
+  {
+    unsigned char *data;
+    unsigned int size;
+    int format;
+    GdkAtom type;
+    lisp_data_to_selection_data (d, converted_selection,
+				 &data, &type, &size, &format);
+
+    gtk_selection_data_set (selection_data, type, format, data, size);
+    successful_p = Qt;
+    /* Tell x_selection_request_lisp_error() it's cool. */
+    cl->successful = TRUE;
+    xfree (data);
+  }
+
+  unbind_to (count, Qnil);
+
+ DONE_LABEL:
+
+  if (cl) xfree (cl);
+
+  UNGCPRO;
+
+  /* Let random lisp code notice that the selection has been asked for. */
+  {
+    Lisp_Object val = Vgtk_sent_selection_hooks;
+    if (!UNBOUNDP (val) && !NILP (val))
+      {
+	Lisp_Object rest;
+	if (CONSP (val) && !EQ (XCAR (val), Qlambda))
+	  for (rest = val; !NILP (rest); rest = Fcdr (rest))
+	    call3 (Fcar (rest), selection_symbol, target_symbol, successful_p);
+	else
+	  call3 (val, selection_symbol, target_symbol, successful_p);
+      }
+  }
+}
+
+
+
+static GtkWidget *reading_selection_reply;
+static GdkAtom reading_which_selection;
+static int selection_reply_timed_out;
+
+/* Gets the current selection owned by another application */
+void
+emacs_gtk_selection_received (GtkWidget *widget,
+			      GtkSelectionData *selection_data,
+			      gpointer user_data)
+{
+  waiting_for_selection = FALSE;
+  Vretrieved_selection = Qnil;
+
+  reading_selection_reply = NULL;
+
+  signal_fake_event ();
+
+  if (selection_data->length < 0)
+    {
+      return;
+    }
+
+  Vretrieved_selection =
+    selection_data_to_lisp_data (NULL,
+				 selection_data->data,
+				 selection_data->length,
+				 selection_data->type,
+				 selection_data->format);
+}
+
+static int
+selection_reply_done (void *ignore)
+{
+  return !reading_selection_reply;
+}
+
+/* Do protocol to read selection-data from the server.
+   Converts this to lisp data and returns it.
+ */
+static Lisp_Object
+gtk_get_foreign_selection (Lisp_Object selection_symbol,
+			   Lisp_Object target_type)
+{
+  /* This function can GC */
+  struct device *d = decode_gtk_device (Qnil);
+  GtkWidget *requestor = DEVICE_GTK_APP_SHELL (d);
+  guint32 requestor_time = DEVICE_GTK_MOUSE_TIMESTAMP (d);
+  GdkAtom selection_atom = symbol_to_gtk_atom (d, selection_symbol, 0);
+  int speccount;
+  GdkAtom type_atom = symbol_to_gtk_atom (d, (CONSP (target_type) ?
+					      XCAR (target_type) : target_type), 0);
+
+  gtk_selection_convert (requestor, selection_atom, type_atom,
+			 requestor_time);
+
+  signal_fake_event ();
+
+  /* Block until the reply has been read. */
+  reading_selection_reply = requestor;
+  reading_which_selection = selection_atom;
+  selection_reply_timed_out = 0;
+
+  speccount = specpdl_depth ();
+
+#if 0
+  /* add a timeout handler */
+  if (gtk_selection_timeout > 0)
+    {
+      Lisp_Object id = Fadd_timeout (make_int (x_selection_timeout),
+				     Qx_selection_reply_timeout_internal,
+				     Qnil, Qnil);
+      record_unwind_protect (Fdisable_timeout, id);
+    }
+#endif
+
+  /* This is ^Gable */
+  wait_delaying_user_input (selection_reply_done, 0);
+
+  if (selection_reply_timed_out)
+    error ("timed out waiting for reply from selection owner");
+
+  unbind_to (speccount, Qnil);
+
+  /* otherwise, the selection is waiting for us on the requested property. */
+  return select_convert_in (selection_symbol,
+			    target_type,
+			    Vretrieved_selection);
+}
+
+
+#if 0
+static void
+gtk_get_window_property (struct device *d, GtkWidget *window, GdkAtom property,
+			 Extbyte **data_ret, int *bytes_ret,
+			 GdkAtom *actual_type_ret, int *actual_format_ret,
+			 unsigned long *actual_size_ret, int delete_p)
+{
+  size_t total_size;
+  unsigned long bytes_remaining;
+  int offset = 0;
+  unsigned char *tmp_data = 0;
+  int result;
+  int buffer_size = SELECTION_QUANTUM (display);
+  if (buffer_size > MAX_SELECTION_QUANTUM) buffer_size = MAX_SELECTION_QUANTUM;
+
+  /* First probe the thing to find out how big it is. */
+  result = XGetWindowProperty (display, window, property,
+			       0, 0, False, AnyPropertyType,
+			       actual_type_ret, actual_format_ret,
+			       actual_size_ret,
+			       &bytes_remaining, &tmp_data);
+  if (result != Success)
+    {
+      *data_ret = 0;
+      *bytes_ret = 0;
+      return;
+    }
+  XFree ((char *) tmp_data);
+
+  if (*actual_type_ret == None || *actual_format_ret == 0)
+    {
+      if (delete_p) XDeleteProperty (display, window, property);
+      *data_ret = 0;
+      *bytes_ret = 0;
+      return;
+    }
+
+  total_size = bytes_remaining + 1;
+  *data_ret = (Extbyte *) xmalloc (total_size);
+
+  /* Now read, until we've gotten it all. */
+  while (bytes_remaining)
+    {
+#if 0
+      int last = bytes_remaining;
+#endif
+      result =
+	XGetWindowProperty (display, window, property,
+			    offset/4, buffer_size/4,
+			    (delete_p ? True : False),
+			    AnyPropertyType,
+			    actual_type_ret, actual_format_ret,
+			    actual_size_ret, &bytes_remaining, &tmp_data);
+#if 0
+      stderr_out ("<< read %d\n", last-bytes_remaining);
+#endif
+      /* If this doesn't return Success at this point, it means that
+	 some clod deleted the selection while we were in the midst of
+	 reading it.  Deal with that, I guess....
+       */
+      if (result != Success) break;
+      *actual_size_ret *= *actual_format_ret / 8;
+      memcpy ((*data_ret) + offset, tmp_data, *actual_size_ret);
+      offset += *actual_size_ret;
+      XFree ((char *) tmp_data);
+    }
+  *bytes_ret = offset;
+}
+
+
+static void
+receive_incremental_selection (Display *display, Window window, Atom property,
+			       /* this one is for error messages only */
+			       Lisp_Object target_type,
+			       unsigned int min_size_bytes,
+			       Extbyte **data_ret, int *size_bytes_ret,
+			       Atom *type_ret, int *format_ret,
+			       unsigned long *size_ret)
+{
+  /* This function can GC */
+  int offset = 0;
+  int prop_id;
+  *size_bytes_ret = min_size_bytes;
+  *data_ret = (Extbyte *) xmalloc (*size_bytes_ret);
+#if 0
+  stderr_out ("\nread INCR %d\n", min_size_bytes);
+#endif
+  /* At this point, we have read an INCR property, and deleted it (which
+     is how we ack its receipt: the sending window will be selecting
+     PropertyNotify events on our window to notice this).
+
+     Now, we must loop, waiting for the sending window to put a value on
+     that property, then reading the property, then deleting it to ack.
+     We are done when the sender places a property of length 0.
+   */
+  prop_id = expect_property_change (display, window, property,
+				    PropertyNewValue);
+  while (1)
+    {
+      Extbyte *tmp_data;
+      int tmp_size_bytes;
+      wait_for_property_change (prop_id);
+      /* expect it again immediately, because x_get_window_property may
+	 .. no it won't, I don't get it.
+	 .. Ok, I get it now, the Xt code that implements INCR is broken.
+       */
+      prop_id = expect_property_change (display, window, property,
+					PropertyNewValue);
+      x_get_window_property (display, window, property,
+			     &tmp_data, &tmp_size_bytes,
+			     type_ret, format_ret, size_ret, 1);
+
+      if (tmp_size_bytes == 0) /* we're done */
+	{
+#if 0
+	  stderr_out ("  read INCR done\n");
+#endif
+	  unexpect_property_change (prop_id);
+	  if (tmp_data) xfree (tmp_data);
+	  break;
+	}
+#if 0
+      stderr_out ("  read INCR %d\n", tmp_size_bytes);
+#endif
+      if (*size_bytes_ret < offset + tmp_size_bytes)
+	{
+#if 0
+	  stderr_out ("  read INCR realloc %d -> %d\n",
+		   *size_bytes_ret, offset + tmp_size_bytes);
+#endif
+	  *size_bytes_ret = offset + tmp_size_bytes;
+	  *data_ret = (Extbyte *) xrealloc (*data_ret, *size_bytes_ret);
+	}
+      memcpy ((*data_ret) + offset, tmp_data, tmp_size_bytes);
+      offset += tmp_size_bytes;
+      xfree (tmp_data);
+    }
+}
+
+
+static Lisp_Object
+gtk_get_window_property_as_lisp_data (struct device *d,
+				      GtkWidget *window,
+				      GdkAtom property,
+				      /* next two for error messages only */
+				      Lisp_Object target_type,
+				      GdkAtom selection_atom)
+{
+  /* This function can GC */
+  Atom actual_type;
+  int actual_format;
+  unsigned long actual_size;
+  Extbyte *data = NULL;
+  int bytes = 0;
+  Lisp_Object val;
+  struct device *d = get_device_from_display (display);
+
+  x_get_window_property (display, window, property, &data, &bytes,
+			 &actual_type, &actual_format, &actual_size, 1);
+  if (! data)
+    {
+      if (XGetSelectionOwner (display, selection_atom))
+	/* there is a selection owner */
+	signal_error
+	  (Qselection_conversion_error,
+	   Fcons (build_string ("selection owner couldn't convert"),
+		  Fcons (x_atom_to_symbol (d, selection_atom),
+			 actual_type ?
+			 list2 (target_type, x_atom_to_symbol (d, actual_type)) :
+			 list1 (target_type))));
+      else
+	signal_error (Qerror,
+		      list2 (build_string ("no selection"),
+			     x_atom_to_symbol (d, selection_atom)));
+    }
+
+  if (actual_type == DEVICE_XATOM_INCR (d))
+    {
+      /* Ok, that data wasn't *the* data, it was just the beginning. */
+
+      unsigned int min_size_bytes = * ((unsigned int *) data);
+      xfree (data);
+      receive_incremental_selection (display, window, property, target_type,
+				     min_size_bytes, &data, &bytes,
+				     &actual_type, &actual_format,
+				     &actual_size);
+    }
+
+  /* It's been read.  Now convert it to a lisp object in some semi-rational
+     manner. */
+  val = selection_data_to_lisp_data (d, data, bytes,
+				     actual_type, actual_format);
+
+  xfree (data);
+  return val;
+}
+#endif
+
+
+static GdkAtom
+symbol_to_gtk_atom (struct device *d, Lisp_Object sym, int only_if_exists)
+{
+  if (NILP (sym))		return GDK_SELECTION_PRIMARY;
+  if (EQ (sym, Qt))		return GDK_SELECTION_SECONDARY;
+  if (EQ (sym, QPRIMARY))	return GDK_SELECTION_PRIMARY;
+  if (EQ (sym, QSECONDARY))	return GDK_SELECTION_SECONDARY;
+
+  {
+    const char *nameext;
+    LISP_STRING_TO_EXTERNAL (Fsymbol_name (sym), nameext, Qctext);
+    return gdk_atom_intern (nameext, only_if_exists ? TRUE : FALSE);
+  }
+}
+
+static Lisp_Object
+atom_to_symbol (struct device *d, GdkAtom atom)
+{
+  if (atom == GDK_SELECTION_PRIMARY) return (QPRIMARY);
+  if (atom == GDK_SELECTION_SECONDARY) return (QSECONDARY);
+
+  {
+    char *intstr;
+    char *str = gdk_atom_name (atom);
+
+    if (! str) return Qnil;
+
+    TO_INTERNAL_FORMAT (C_STRING, str,
+			C_STRING_ALLOCA, intstr,
+			Qctext);
+    g_free (str);
+    return intern (intstr);
+  }
+}
+
+/* #### These are going to move into Lisp code(!) with the aid of
+        some new functions I'm working on - ajh */
+
+/* These functions convert from the selection data read from the server into
+   something that we can use from elisp, and vice versa.
+
+	Type:	Format:	Size:		Elisp Type:
+	-----	-------	-----		-----------
+	*	8	*		String
+	ATOM	32	1		Symbol
+	ATOM	32	> 1		Vector of Symbols
+	*	16	1		Integer
+	*	16	> 1		Vector of Integers
+	*	32	1		if <=16 bits: Integer
+					if > 16 bits: Cons of top16, bot16
+	*	32	> 1		Vector of the above
+
+   When converting a Lisp number to C, it is assumed to be of format 16 if
+   it is an integer, and of format 32 if it is a cons of two integers.
+
+   When converting a vector of numbers from Elisp to C, it is assumed to be
+   of format 16 if every element in the vector is an integer, and is assumed
+   to be of format 32 if any element is a cons of two integers.
+
+   When converting an object to C, it may be of the form (SYMBOL . <data>)
+   where SYMBOL is what we should claim that the type is.  Format and
+   representation are as above.
+
+   NOTE: Under Mule, when someone shoves us a string without a type, we
+   set the type to 'COMPOUND_TEXT and automatically convert to Compound
+   Text.  If the string has a type, we assume that the user wants the
+   data sent as-is so we just do "binary" conversion.
+ */
+
+
+static Lisp_Object
+selection_data_to_lisp_data (struct device *d,
+			     Extbyte *data,
+			     size_t size,
+			     GdkAtom type,
+			     int format)
+{
+  if (type == gdk_atom_intern ("NULL", 0))
+    return QNULL;
+
+  /* Convert any 8-bit data to a string, for compactness. */
+  else if (format == 8)
+    return make_ext_string (data, size,
+			    ((type == gdk_atom_intern ("TEXT", FALSE)) ||
+			     (type == gdk_atom_intern ("COMPOUND_TEXT", FALSE)))
+			    ? Qctext : Qbinary);
+
+  /* Convert a single atom to a Lisp Symbol.
+     Convert a set of atoms to a vector of symbols. */
+  else if (type == gdk_atom_intern ("ATOM", FALSE))
+    {
+      if (size == sizeof (GdkAtom))
+	return atom_to_symbol (d, *((GdkAtom *) data));
+      else
+	{
+	  int i;
+	  int len = size / sizeof (GdkAtom);
+	  Lisp_Object v = Fmake_vector (make_int (len), Qzero);
+	  for (i = 0; i < len; i++)
+	    Faset (v, make_int (i), atom_to_symbol (d, ((GdkAtom *) data) [i]));
+	  return v;
+	}
+    }
+
+  /* Convert a single 16 or small 32 bit number to a Lisp Int.
+     If the number is > 16 bits, convert it to a cons of integers,
+     16 bits in each half.
+   */
+  else if (format == 32 && size == sizeof (long))
+    return word_to_lisp (((unsigned long *) data) [0]);
+  else if (format == 16 && size == sizeof (short))
+    return make_int ((int) (((unsigned short *) data) [0]));
+
+  /* Convert any other kind of data to a vector of numbers, represented
+     as above (as an integer, or a cons of two 16 bit integers).
+
+     #### Perhaps we should return the actual type to lisp as well.
+
+	(x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
+	==> [4 4]
+
+     and perhaps it should be
+
+	(x-get-selection-internal 'PRIMARY 'LINE_NUMBER)
+	==> (SPAN . [4 4])
+
+     Right now the fact that the return type was SPAN is discarded before
+     lisp code gets to see it.
+   */
+  else if (format == 16)
+    {
+      int i;
+      Lisp_Object v = make_vector (size / 4, Qzero);
+      for (i = 0; i < (int) size / 4; i++)
+	{
+	  int j = (int) ((unsigned short *) data) [i];
+	  Faset (v, make_int (i), make_int (j));
+	}
+      return v;
+    }
+  else
+    {
+      int i;
+      Lisp_Object v = make_vector (size / 4, Qzero);
+      for (i = 0; i < (int) size / 4; i++)
+	{
+	  unsigned long j = ((unsigned long *) data) [i];
+	  Faset (v, make_int (i), word_to_lisp (j));
+	}
+      return v;
+    }
+}
+
+
+static void
+lisp_data_to_selection_data (struct device *d,
+			     Lisp_Object obj,
+			     unsigned char **data_ret,
+			     GdkAtom *type_ret,
+			     unsigned int *size_ret,
+			     int *format_ret)
+{
+  Lisp_Object type = Qnil;
+
+  if (CONSP (obj) && SYMBOLP (XCAR (obj)))
+    {
+      type = XCAR (obj);
+      obj = XCDR (obj);
+      if (CONSP (obj) && NILP (XCDR (obj)))
+	obj = XCAR (obj);
+    }
+
+  if (EQ (obj, QNULL) || (EQ (type, QNULL)))
+    {				/* This is not the same as declining */
+      *format_ret = 32;
+      *size_ret = 0;
+      *data_ret = 0;
+      type = QNULL;
+    }
+  else if (STRINGP (obj))
+    {
+      const Extbyte *extval;
+      Extcount extvallen;
+
+      TO_EXTERNAL_FORMAT (LISP_STRING, obj,
+			  ALLOCA, (extval, extvallen),
+			  (NILP (type) ? Qctext : Qbinary));
+      *format_ret = 8;
+      *size_ret = extvallen;
+      *data_ret = (unsigned char *) xmalloc (*size_ret);
+      memcpy (*data_ret, extval, *size_ret);
+#ifdef MULE
+      if (NILP (type)) type = QCOMPOUND_TEXT;
+#else
+      if (NILP (type)) type = QSTRING;
+#endif
+    }
+  else if (CHARP (obj))
+    {
+      Bufbyte buf[MAX_EMCHAR_LEN];
+      Bytecount len;
+      const Extbyte *extval;
+      Extcount extvallen;
+
+      *format_ret = 8;
+      len = set_charptr_emchar (buf, XCHAR (obj));
+      TO_EXTERNAL_FORMAT (DATA, (buf, len),
+			  ALLOCA, (extval, extvallen),
+			  Qctext);
+      *size_ret = extvallen;
+      *data_ret = (unsigned char *) xmalloc (*size_ret);
+      memcpy (*data_ret, extval, *size_ret);
+#ifdef MULE
+      if (NILP (type)) type = QCOMPOUND_TEXT;
+#else
+      if (NILP (type)) type = QSTRING;
+#endif
+    }
+  else if (SYMBOLP (obj))
+    {
+      *format_ret = 32;
+      *size_ret = 1;
+      *data_ret = (unsigned char *) xmalloc (sizeof (GdkAtom) + 1);
+      (*data_ret) [sizeof (GdkAtom)] = 0;
+      (*(GdkAtom **) data_ret) [0] = symbol_to_gtk_atom (d, obj, 0);
+      if (NILP (type)) type = QATOM;
+    }
+  else if (INTP (obj) &&
+	   XINT (obj) <= 0x7FFF &&
+	   XINT (obj) >= -0x8000)
+    {
+      *format_ret = 16;
+      *size_ret = 1;
+      *data_ret = (unsigned char *) xmalloc (sizeof (short) + 1);
+      (*data_ret) [sizeof (short)] = 0;
+      (*(short **) data_ret) [0] = (short) XINT (obj);
+      if (NILP (type)) type = QINTEGER;
+    }
+  else if (INTP (obj) || CONSP (obj))
+    {
+      *format_ret = 32;
+      *size_ret = 1;
+      *data_ret = (unsigned char *) xmalloc (sizeof (long) + 1);
+      (*data_ret) [sizeof (long)] = 0;
+      (*(unsigned long **) data_ret) [0] = lisp_to_word (obj);
+      if (NILP (type)) type = QINTEGER;
+    }
+  else if (VECTORP (obj))
+    {
+      /* Lisp Vectors may represent a set of ATOMs;
+	 a set of 16 or 32 bit INTEGERs;
+	 or a set of ATOM_PAIRs (represented as [[A1 A2] [A3 A4] ...]
+       */
+      int i;
+
+      if (SYMBOLP (XVECTOR_DATA (obj) [0]))
+	/* This vector is an ATOM set */
+	{
+	  if (NILP (type)) type = QATOM;
+	  *size_ret = XVECTOR_LENGTH (obj);
+	  *format_ret = 32;
+	  *data_ret = (unsigned char *) xmalloc ((*size_ret) * sizeof (GdkAtom));
+	  for (i = 0; i < (int) (*size_ret); i++)
+	    if (SYMBOLP (XVECTOR_DATA (obj) [i]))
+	      (*(GdkAtom **) data_ret) [i] =
+		symbol_to_gtk_atom (d, XVECTOR_DATA (obj) [i], 0);
+	    else
+              signal_error (Qerror, /* Qselection_error */
+                            list2 (build_string
+		   ("all elements of the vector must be of the same type"),
+                                   obj));
+	}
+#if 0 /* #### MULTIPLE doesn't work yet */
+      else if (VECTORP (XVECTOR_DATA (obj) [0]))
+	/* This vector is an ATOM_PAIR set */
+	{
+	  if (NILP (type)) type = QATOM_PAIR;
+	  *size_ret = XVECTOR_LENGTH (obj);
+	  *format_ret = 32;
+	  *data_ret = (unsigned char *)
+	    xmalloc ((*size_ret) * sizeof (Atom) * 2);
+	  for (i = 0; i < *size_ret; i++)
+	    if (VECTORP (XVECTOR_DATA (obj) [i]))
+	      {
+		Lisp_Object pair = XVECTOR_DATA (obj) [i];
+		if (XVECTOR_LENGTH (pair) != 2)
+		  signal_error (Qerror,
+                                list2 (build_string
+       ("elements of the vector must be vectors of exactly two elements"),
+				  pair));
+
+		(*(GdkAtom **) data_ret) [i * 2] =
+		  symbol_to_gtk_atom (d, XVECTOR_DATA (pair) [0], 0);
+		(*(GdkAtom **) data_ret) [(i * 2) + 1] =
+		  symbol_to_gtk_atom (d, XVECTOR_DATA (pair) [1], 0);
+	      }
+	    else
+	      signal_error (Qerror,
+                            list2 (build_string
+		   ("all elements of the vector must be of the same type"),
+                                   obj));
+	}
+#endif
+      else
+	/* This vector is an INTEGER set, or something like it */
+	{
+	  *size_ret = XVECTOR_LENGTH (obj);
+	  if (NILP (type)) type = QINTEGER;
+	  *format_ret = 16;
+	  for (i = 0; i < (int) (*size_ret); i++)
+	    if (CONSP (XVECTOR_DATA (obj) [i]))
+	      *format_ret = 32;
+	    else if (!INTP (XVECTOR_DATA (obj) [i]))
+	      signal_error (Qerror, /* Qselection_error */
+                            list2 (build_string
+	("all elements of the vector must be integers or conses of integers"),
+                                   obj));
+
+	  *data_ret = (unsigned char *) xmalloc (*size_ret * (*format_ret/8));
+	  for (i = 0; i < (int) (*size_ret); i++)
+	    if (*format_ret == 32)
+	      (*((unsigned long **) data_ret)) [i] =
+		lisp_to_word (XVECTOR_DATA (obj) [i]);
+	    else
+	      (*((unsigned short **) data_ret)) [i] =
+		(unsigned short) lisp_to_word (XVECTOR_DATA (obj) [i]);
+	}
+    }
+  else
+    signal_error (Qerror, /* Qselection_error */
+                  list2 (build_string ("unrecognized selection data"),
+                         obj));
+
+  *type_ret = symbol_to_gtk_atom (d, type, 0);
+}
+
+
+
+static Lisp_Object
+gtk_own_selection (Lisp_Object selection_name, Lisp_Object selection_value,
+		   Lisp_Object how_to_add, Lisp_Object selection_type)
+{
+  struct device *d = decode_gtk_device (Qnil);
+  GtkWidget *selecting_window = GTK_WIDGET (DEVICE_GTK_APP_SHELL (d));
+  Lisp_Object selection_time;
+  /* Use the time of the last-read mouse or keyboard event.
+     For selection purposes, we use this as a sleazy way of knowing what the
+     current time is in server-time.  This assumes that the most recently read
+     mouse or keyboard event has something to do with the assertion of the
+     selection, which is probably true.
+     */
+  guint32 thyme = DEVICE_GTK_MOUSE_TIMESTAMP (d);
+  GdkAtom selection_atom;
+
+  CHECK_SYMBOL (selection_name);
+  selection_atom = symbol_to_gtk_atom (d, selection_name, 0);
+
+  gtk_selection_owner_set (selecting_window,
+			   selection_atom,
+			   thyme);
+
+  /* We do NOT use time_to_lisp() here any more, like we used to.
+     That assumed equivalence of time_t and Time, which is not
+     necessarily the case (e.g. under OSF on the Alphas, where
+     Time is a 64-bit quantity and time_t is a 32-bit quantity).
+
+     Opaque pointers are the clean way to go here.
+  */
+  selection_time = make_opaque (&thyme, sizeof (thyme));
+
+  return selection_time;
+}
+
+static void
+gtk_disown_selection (Lisp_Object selection, Lisp_Object timeval)
+{
+  struct device *d = decode_gtk_device (Qnil);
+  GdkAtom selection_atom;
+  guint32 timestamp;
+
+  CHECK_SYMBOL (selection);
+  selection_atom = symbol_to_gtk_atom (d, selection, 0);
+
+  if (NILP (timeval))
+    timestamp = DEVICE_GTK_MOUSE_TIMESTAMP (d);
+  else
+    {
+      time_t the_time;
+      lisp_to_time (timeval, &the_time);
+      timestamp = (guint32) the_time;
+    }
+
+  gtk_selection_owner_set (NULL, selection_atom, timestamp);
+}
+
+static Lisp_Object
+gtk_selection_exists_p (Lisp_Object selection,
+			Lisp_Object selection_type)
+{
+  struct device *d = decode_gtk_device (Qnil);
+  
+  return (gdk_selection_owner_get (symbol_to_gtk_atom (d, selection, 0)) ? Qt : Qnil);
+}
+
+
+ 
+/************************************************************************/
+/*                            initialization                            */
+/************************************************************************/
+
+void
+syms_of_select_gtk (void)
+{
+}
+
+void
+console_type_create_select_gtk (void)
+{
+  CONSOLE_HAS_METHOD (gtk, own_selection);
+  CONSOLE_HAS_METHOD (gtk, disown_selection);
+  CONSOLE_HAS_METHOD (gtk, selection_exists_p);
+  CONSOLE_HAS_METHOD (gtk, get_foreign_selection);
+}
+
+void
+vars_of_select_gtk (void)
+{
+  staticpro (&Vretrieved_selection);
+  Vretrieved_selection = Qnil;
+
+  DEFVAR_LISP ("gtk-sent-selection-hooks", &Vgtk_sent_selection_hooks /*
+A function or functions to be called after we have responded to some
+other client's request for the value of a selection that we own.  The
+function(s) will be called with four arguments:
+  - the name of the selection (typically PRIMARY, SECONDARY, or CLIPBOARD);
+  - the name of the selection-type which we were requested to convert the
+    selection into before sending (for example, STRING or LENGTH);
+  - and whether we successfully transmitted the selection.
+We might have failed (and declined the request) for any number of reasons,
+including being asked for a selection that we no longer own, or being asked
+to convert into a type that we don't know about or that is inappropriate.
+This hook doesn't let you change the behavior of emacs's selection replies,
+it merely informs you that they have happened.
+*/ );
+  Vgtk_sent_selection_hooks = Qunbound;
+}