;;; select.el --- lisp portion of standard selection support
-;; Copyright (C) 1993, 1994, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
-;; 2008, 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 1993-1994, 2001-2014 Free Software Foundation, Inc.
-;; Maintainer: FSF
+;; Maintainer: emacs-devel@gnu.org
;; Keywords: internal
;; This file is part of GNU Emacs.
After the communication, this variable is set to nil.")
(declare-function x-get-selection-internal "xselect.c"
- (selection-symbol target-type &optional time-stamp))
+ (selection-symbol target-type &optional time-stamp terminal))
;; Only declared obsolete in 23.3.
(define-obsolete-function-alias 'x-selection 'x-get-selection "at least 19.34")
`PRIMARY', are `SECONDARY' and `CLIPBOARD'.
DATA-TYPE is usually `STRING', but can also be one of the symbols
-in `selection-converter-alist', which see."
+in `selection-converter-alist', which see. This argument is
+ignored on MS-Windows and MS-DOS."
(let ((data (x-get-selection-internal (or type 'PRIMARY)
(or data-type 'STRING)))
coding)
((eq data-type 'STRING)
'iso-8859-1)
(t
- (error "Unknow selection data type: %S" type))))
+ (error "Unknown selection data type: %S" type))))
data (if coding (decode-coding-string data coding)
(string-to-multibyte data)))
(setq next-selection-coding-system nil)
(x-get-selection-internal 'CLIPBOARD 'STRING))
(declare-function x-own-selection-internal "xselect.c"
- (selection-name selection-value))
+ (selection-name selection-value &optional frame))
(declare-function x-disown-selection-internal "xselect.c"
- (selection &optional time))
+ (selection &optional time terminal))
(defun x-set-selection (type data)
"Make an X selection of type TYPE and value DATA.
(defun xselect--int-to-cons (n)
(cons (ash n -16) (logand n 65535)))
-(defun xselect-convert-to-string (selection type value)
- (let (str coding)
- ;; Get the actual string from VALUE.
- (cond ((stringp value)
- (setq str value))
- ((setq value (xselect--selection-bounds value))
- (with-current-buffer (nth 2 value)
- (setq str (buffer-substring (nth 0 value)
- (nth 1 value))))))
- (when str
- ;; If TYPE is nil, this is a local request, thus return STR as
- ;; is. Otherwise, encode STR.
- (if (not type)
- str
- (setq coding (or next-selection-coding-system selection-coding-system))
+(defun xselect--encode-string (type str &optional can-modify)
+ (when str
+ ;; If TYPE is nil, this is a local request; return STR as-is.
+ (if (null type)
+ str
+ ;; Otherwise, encode STR.
+ (let ((coding (or next-selection-coding-system
+ selection-coding-system)))
(if coding
(setq coding (coding-system-base coding)))
(let ((inhibit-read-only t))
;; Suppress producing escape sequences for compositions.
+ ;; But avoid modifying the string if it's a buffer name etc.
+ (unless can-modify (setq str (substring str 0)))
(remove-text-properties 0 (length str) '(composition nil) str)
- (if (eq type 'TEXT)
- ;; TEXT is a polymorphic target. We must select the
- ;; actual type from `UTF8_STRING', `COMPOUND_TEXT',
- ;; `STRING', and `C_STRING'.
- (if (not (multibyte-string-p str))
- (setq type 'C_STRING)
- (let (non-latin-1 non-unicode eight-bit)
- (mapc #'(lambda (x)
- (if (>= x #x100)
- (if (< x #x110000)
- (setq non-latin-1 t)
- (if (< x #x3FFF80)
- (setq non-unicode t)
- (setq eight-bit t)))))
- str)
- (setq type (if non-unicode 'COMPOUND_TEXT
- (if non-latin-1 'UTF8_STRING
- (if eight-bit 'C_STRING 'STRING)))))))
+ ;; For X selections, TEXT is a polymorphic target; choose
+ ;; the actual type from `UTF8_STRING', `COMPOUND_TEXT',
+ ;; `STRING', and `C_STRING'. On Nextstep, always use UTF-8
+ ;; (see ns_string_to_pasteboard_internal in nsselect.m).
+ (when (eq type 'TEXT)
+ (cond
+ ((featurep 'ns)
+ (setq type 'UTF8_STRING))
+ ((not (multibyte-string-p str))
+ (setq type 'C_STRING))
+ (t
+ (let (non-latin-1 non-unicode eight-bit)
+ (mapc #'(lambda (x)
+ (if (>= x #x100)
+ (if (< x #x110000)
+ (setq non-latin-1 t)
+ (if (< x #x3FFF80)
+ (setq non-unicode t)
+ (setq eight-bit t)))))
+ str)
+ (setq type (if (or non-unicode
+ (and
+ non-latin-1
+ ;; If a coding is specified for
+ ;; selection, and that is
+ ;; compatible with COMPOUND_TEXT,
+ ;; use it.
+ coding
+ (eq (coding-system-get coding :mime-charset)
+ 'x-ctext)))
+ 'COMPOUND_TEXT
+ (if non-latin-1 'UTF8_STRING
+ (if eight-bit 'C_STRING
+ 'STRING))))))))
(cond
((eq type 'UTF8_STRING)
(if (or (not coding)
(setq next-selection-coding-system nil)
(cons type str))))
-(defun xselect-convert-to-length (selection type value)
+(defun xselect-convert-to-string (_selection type value)
+ (let ((str (cond ((stringp value) value)
+ ((setq value (xselect--selection-bounds value))
+ (with-current-buffer (nth 2 value)
+ (buffer-substring (nth 0 value)
+ (nth 1 value)))))))
+ (xselect--encode-string type str t)))
+
+(defun xselect-convert-to-length (_selection _type value)
(let ((len (cond ((stringp value)
(length value))
((setq value (xselect--selection-bounds value))
(if len
(xselect--int-to-cons len))))
-(defun xselect-convert-to-targets (selection type value)
+(defun xselect-convert-to-targets (_selection _type _value)
;; return a vector of atoms, but remove duplicates first.
- (let* ((all (cons 'TIMESTAMP (mapcar 'car selection-converter-alist)))
+ (let* ((all (cons 'TIMESTAMP
+ (cons 'MULTIPLE
+ (mapcar 'car selection-converter-alist))))
(rest all))
(while rest
(cond ((memq (car rest) (cdr rest))
(setq rest (cdr rest)))))
(apply 'vector all)))
-(defun xselect-convert-to-delete (selection type value)
+(defun xselect-convert-to-delete (selection _type _value)
(x-disown-selection-internal selection)
;; A return value of nil means that we do not know how to do this conversion,
;; and replies with an "error". A return value of NULL means that we have
;; done the conversion (and any side-effects) but have no value to return.
'NULL)
-(defun xselect-convert-to-filename (selection type value)
+(defun xselect-convert-to-filename (_selection _type value)
(when (setq value (xselect--selection-bounds value))
- (buffer-file-name (nth 2 value))))
+ (xselect--encode-string 'TEXT (buffer-file-name (nth 2 value)))))
-(defun xselect-convert-to-charpos (selection type value)
+(defun xselect-convert-to-charpos (_selection _type value)
(when (setq value (xselect--selection-bounds value))
(let ((beg (1- (nth 0 value))) ; zero-based
(end (1- (nth 1 value))))
(cons 'SPAN (vector (xselect--int-to-cons (min beg end))
(xselect--int-to-cons (max beg end)))))))
-(defun xselect-convert-to-lineno (selection type value)
+(defun xselect-convert-to-lineno (_selection _type value)
(when (setq value (xselect--selection-bounds value))
(with-current-buffer (nth 2 value)
(let ((beg (line-number-at-pos (nth 0 value)))
(cons 'SPAN (vector (xselect--int-to-cons (min beg end))
(xselect--int-to-cons (max beg end))))))))
-(defun xselect-convert-to-colno (selection type value)
+(defun xselect-convert-to-colno (_selection _type value)
(when (setq value (xselect--selection-bounds value))
(with-current-buffer (nth 2 value)
(let ((beg (progn (goto-char (nth 0 value)) (current-column)))
(cons 'SPAN (vector (xselect--int-to-cons (min beg end))
(xselect--int-to-cons (max beg end))))))))
-(defun xselect-convert-to-os (selection type size)
- (symbol-name system-type))
+(defun xselect-convert-to-os (_selection _type _size)
+ (xselect--encode-string 'TEXT (symbol-name system-type)))
-(defun xselect-convert-to-host (selection type size)
- (system-name))
+(defun xselect-convert-to-host (_selection _type _size)
+ (xselect--encode-string 'TEXT (system-name)))
-(defun xselect-convert-to-user (selection type size)
- (user-full-name))
+(defun xselect-convert-to-user (_selection _type _size)
+ (xselect--encode-string 'TEXT (user-full-name)))
-(defun xselect-convert-to-class (selection type size)
+(defun xselect-convert-to-class (_selection _type _size)
"Convert selection to class.
This function returns the string \"Emacs\"."
"Emacs")
;; We do not try to determine the name Emacs was invoked with,
;; because it is not clean for a program's behavior to depend on that.
-(defun xselect-convert-to-name (selection type size)
+(defun xselect-convert-to-name (_selection _type _size)
"Convert selection to name.
This function returns the string \"emacs\"."
"emacs")
-(defun xselect-convert-to-integer (selection type value)
+(defun xselect-convert-to-integer (_selection _type value)
(and (integerp value)
(xselect--int-to-cons value)))
-(defun xselect-convert-to-atom (selection type value)
+(defun xselect-convert-to-atom (_selection _type value)
(and (symbolp value) value))
-(defun xselect-convert-to-identity (selection type value) ; used internally
+(defun xselect-convert-to-identity (_selection _type value) ; used internally
(vector value))
+;; Null target that tells clipboard managers we support SAVE_TARGETS
+;; (see freedesktop.org Clipboard Manager spec).
+(defun xselect-convert-to-save-targets (selection _type _value)
+ (when (eq selection 'CLIPBOARD)
+ 'NULL))
+
(setq selection-converter-alist
'((TEXT . xselect-convert-to-string)
(COMPOUND_TEXT . xselect-convert-to-string)
(NAME . xselect-convert-to-name)
(ATOM . xselect-convert-to-atom)
(INTEGER . xselect-convert-to-integer)
+ (SAVE_TARGETS . xselect-convert-to-save-targets)
(_EMACS_INTERNAL . xselect-convert-to-identity)))
(provide 'select)
HCoop / bpt / emacs.git / blobdiff