XEmacs 21.4.9 "Informed Management".

[chise/xemacs-chise.git.1] / src / select-x.c

diff --git a/src/select-x.c b/src/select-x.c
index 25bd52a..05c71a1 100644 (file)
--- a/src/select-x.c
+++ b/src/select-x.c
@@ -46,7 +46,8 @@ Lisp_Object time_to_lisp (time_t);
 static void hack_motif_clipboard_selection (Atom selection_atom,
                                            Lisp_Object selection_value,
                                            Time thyme, Display *display,
-                                           Window selecting_window);
+                                           Window selecting_window,
+                                           int owned_p);
 #endif
 
 #define CUT_BUFFER_SUPPORT
@@ -72,7 +73,10 @@ Lisp_Object Vx_sent_selection_hooks;
 /* If the selection owner takes too long to reply to a selection request,
    we give up on it.  This is in seconds (0 = no timeout).
  */
-int x_selection_timeout;
+Fixnum x_selection_timeout;
+
+/* Enable motif selection optimizations. */
+int x_selection_strict_motif_ownership;
 
 \f
 /* Utility functions */
@@ -201,7 +205,8 @@ x_atom_to_symbol (struct device *d, Atom atom)
  */
 static Lisp_Object
 x_own_selection (Lisp_Object selection_name, Lisp_Object selection_value,
-                Lisp_Object how_to_add, Lisp_Object selection_type)
+                Lisp_Object how_to_add, Lisp_Object selection_type,
+                int owned_p)
 {
   struct device *d = decode_x_device (Qnil);
   Display *display = DEVICE_X_DISPLAY (d);
@@ -233,7 +238,7 @@ x_own_selection (Lisp_Object selection_name, Lisp_Object selection_value,
 
 #ifdef MOTIF_CLIPBOARDS
   hack_motif_clipboard_selection (selection_atom, selection_value,
-                                 thyme, display, selecting_window);
+                                 thyme, display, selecting_window, owned_p);
 #endif
   return selection_time;
 }
@@ -249,8 +254,8 @@ hack_motif_clipboard_selection (Atom selection_atom,
                                Lisp_Object selection_value,
                                Time thyme,
                                Display *display,
-                               Window selecting_window)
-     /*                                Bool owned_p)*/
+                               Window selecting_window,
+                               int owned_p)
 {
   struct device *d = get_device_from_display (display);
   /* Those Motif wankers can't be bothered to follow the ICCCM, and do
@@ -270,7 +275,10 @@ hack_motif_clipboard_selection (Atom selection_atom,
         to look up the new value, and you can't Copy from a buffer, Paste
         into a text field, then Copy something else from the buffer and
         paste it into the text field -- it pastes the first thing again. */
-/*      && !owned_p */
+      && (!owned_p 
+         /* Selectively re-enable this because for most users its
+            just too painful - especially over a remote link. */
+         || x_selection_strict_motif_ownership)
       )
     {
 #ifdef MOTIF_INCREMENTAL_CLIPBOARDS_WORK
@@ -1772,6 +1780,17 @@ A value of 0 means wait as long as necessary.  This is initialized from the
 \"*selectionTimeout\" resource (which is expressed in milliseconds).
 */ );
   x_selection_timeout = 0;
+
+  DEFVAR_BOOL ("x-selection-strict-motif-ownership", &x_selection_strict_motif_ownership /*
+*If nil and XEmacs already owns the clipboard, don't own it again in the
+Motif way. Owning the selection on the Motif way does a huge amount of
+X protocol, and it makes killing text incredibly slow when using an
+X terminal.  However, when enabled Motif text fields don't bother to look up
+the new value, and you can't Copy from a buffer, Paste into a text
+field, then Copy something else from the buffer and paste it into the
+text field; it pastes the first thing again.
+*/ );
+  x_selection_strict_motif_ownership = 1;
 }
 
 void