update.

[chise/xemacs-chise.git.1] / lisp / select.el

diff --git a/lisp/select.el b/lisp/select.el
index 3905641..b185dea 100644 (file)
--- a/lisp/select.el
+++ b/lisp/select.el
@@ -75,9 +75,15 @@ set the clipboard.")
       (insert clip))))
 
 (defun get-clipboard ()
-  "Return text pasted to the clipboard."
+  "Return text pasted to the clipboard.
+Not suitable for `interprogram-paste-function', use `get-clipboard-foreign'."
   (get-selection 'CLIPBOARD))
 
+(defun get-clipboard-foreign ()
+  "Return text pasted to the clipboard by another program.
+See `interprogram-paste-function' for more information."
+  (get-selection-foreign 'CLIPBOARD))
+
 (define-device-method get-cutbuffer
   "Return the value of one of the cut buffers.
 This will do nothing under anything other than X.")
@@ -93,19 +99,27 @@ says how to convert the data. Returns NIL if there is no selection."
   "Return the value of a window-system selection.
 The argument TYPE (default `PRIMARY') says which selection,
 and the argument DATA-TYPE (default `STRING', or `COMPOUND_TEXT' under Mule)
-says how to convert the data. If there is no selection an error is signalled."
+says how to convert the data. If there is no selection an error is signalled.
+Not suitable in a `interprogram-paste-function', q.v."
   (or type (setq type 'PRIMARY))
   (or data-type (setq data-type selected-text-type))
-  (let ((text
-        (if (consp data-type)
-            (condition-case err
-                (get-selection-internal type (car data-type))
-              (selection-conversion-error
-               (if (cdr data-type)
-                   (get-selection type (cdr data-type))
-                 (signal (car err) (cdr err)))))
-          (get-selection-internal type data-type))))
-    text))
+  (if (consp data-type)
+      (condition-case err
+         (get-selection-internal type (car data-type))
+       (selection-conversion-error
+        (if (cdr data-type)
+            (get-selection type (cdr data-type))
+          (signal (car err) (cdr err)))))
+    (get-selection-internal type data-type)))
+
+(defun get-selection-foreign (&optional type data-type)
+  "Return the value of a window-system selection, or nil if XEmacs owns it.
+The argument TYPE (default `PRIMARY') says which selection,
+and the argument DATA-TYPE (default `STRING', or `COMPOUND_TEXT' under Mule)
+says how to convert the data. If there is no selection an error is signalled.
+See `interprogram-paste-function' for more information."
+  (unless (selection-owner-p type)
+    (get-selection type data-type)))
 
 ;; FSFmacs calls this `x-set-selection', and reverses the
 ;; first two arguments (duh ...).  This order is more logical.
@@ -196,8 +210,9 @@ See `interprogram-cut-function' for more information."
   (own-selection string 'CLIPBOARD))
 
 (defun disown-selection (&optional secondary-p)
-  "Assuming we own the selection, disown it.  With an argument, discard the
-secondary selection instead of the primary selection."
+  "Assuming we own the selection, disown it.
+With an argument, discard the secondary selection instead of the
+primary selection."
   (disown-selection-internal (if secondary-p 'SECONDARY 'PRIMARY))
   (when (and selection-sets-clipboard
             (or (not secondary-p)