Mercurial > hg > xemacs-beta
diff lisp/x-select.el @ 428:3ecd8885ac67 r21-2-22
Import from CVS: tag r21-2-22
author | cvs |
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date | Mon, 13 Aug 2007 11:28:15 +0200 |
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children | abe6d1db359e |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lisp/x-select.el Mon Aug 13 11:28:15 2007 +0200 @@ -0,0 +1,158 @@ +;;; x-select.el --- Lisp interface to X Selections. + +;; Copyright (C) 1990, 1997 Free Software Foundation, Inc. +;; Copyright (C) 1995 Sun Microsystems. + +;; Maintainer: XEmacs Development Team +;; Keywords: extensions, dumped + +;; 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: FSF 19.30 (select.el). + +;;; Commentary: + +;; This file is dumped with XEmacs (when X support is compiled in). + +;; The selection code requires us to use certain symbols whose names are +;; all upper-case; this may seem tasteless, but it makes there be a 1:1 +;; correspondence between these symbols and X Atoms (which are upcased). + +;;; Code: + +(define-obsolete-function-alias 'x-selection-exists-p 'selection-exists-p) +(define-obsolete-function-alias 'x-selection-owner-p 'selection-owner-p) +(define-obsolete-variable-alias 'x-selection-converter-alist 'selection-converter-alist) +(define-obsolete-variable-alias 'x-lost-selection-hooks 'lost-selection-hooks) +(define-obsolete-variable-alias 'x-selected-text-type 'selected-text-type) +(define-obsolete-function-alias 'x-valid-simple-selection-p 'valid-simple-selection-p) +(define-obsolete-function-alias 'x-own-selection 'own-selection) +(define-obsolete-function-alias 'x-disown-selection 'disown-selection) +(define-obsolete-function-alias 'x-delete-primary-selection 'delete-primary-selection) +(define-obsolete-function-alias 'x-copy-primary-selection 'copy-primary-selection) +(define-obsolete-function-alias 'x-kill-primary-selection 'kill-primary-selection) +(define-obsolete-function-alias 'x-select-make-extent-for-selection + 'select-make-extent-for-selection) +(define-obsolete-function-alias 'x-cut-copy-clear-internal 'cut-copy-clear-internal) +(define-obsolete-function-alias 'x-get-selection 'get-selection) +(define-obsolete-function-alias 'x-get-clipboard 'get-clipboard) +(define-obsolete-function-alias 'x-yank-clipboard-selection + 'yank-clipboard-selection) +(define-obsolete-function-alias 'x-disown-selection-internal + 'disown-selection-internal) + +(defun x-get-secondary-selection () + "Return text selected from some X window." + (get-selection 'SECONDARY)) + +(defun x-own-secondary-selection (selection &optional type) + "Make a secondary X Selection of the given argument. The argument may be a +string or a cons of two markers (in which case the selection is considered to +be the text between those markers)." + (interactive (if (not current-prefix-arg) + (list (read-string "Store text for pasting: ")) + (list (cons ;; these need not be ordered. + (copy-marker (point-marker)) + (copy-marker (mark-marker)))))) + (own-selection selection 'SECONDARY)) + +(defun x-notice-selection-requests (selection type successful) + "for possible use as the value of x-sent-selection-hooks." + (if (not successful) + (message "Selection request failed to convert %s to %s" + selection type) + (message "Sent selection %s as %s" selection type))) + +(defun x-notice-selection-failures (selection type successful) + "for possible use as the value of x-sent-selection-hooks." + (or successful + (message "Selection request failed to convert %s to %s" + selection type))) + +;(setq x-sent-selection-hooks 'x-notice-selection-requests) +;(setq x-sent-selection-hooks 'x-notice-selection-failures) + + +;;; Selections in killed buffers +;;; this function is called by kill-buffer as if it were on the +;;; kill-buffer-hook (though it isn't really). + +(defun xselect-kill-buffer-hook () + ;; Probably the right thing is to write a C function to return a list + ;; of the selections which emacs owns, since it could conceivably own + ;; a user-defined selection type that we've never heard of. + (xselect-kill-buffer-hook-1 'PRIMARY) + (xselect-kill-buffer-hook-1 'SECONDARY) + (xselect-kill-buffer-hook-1 'CLIPBOARD)) + +(defun xselect-kill-buffer-hook-1 (selection) + (let (value) + (if (and (selection-owner-p selection) + (setq value (get-selection-internal selection '_EMACS_INTERNAL)) + ;; The _EMACS_INTERNAL selection type has a converter registered + ;; for it that does no translation. This only works if emacs is + ;; requesting the selection from itself. We could have done this + ;; by writing a C function to return the raw selection data, and + ;; that might be the right way to do this, but this was easy. + (or (and (consp value) + (markerp (car value)) + (eq (current-buffer) (marker-buffer (car value)))) + (and (extent-live-p value) + (eq (current-buffer) (extent-object value))) + (and (extentp value) (not (extent-live-p value))))) + (disown-selection-internal selection)))) + + +;;; Cut Buffer support + +;;; FSF name x-get-cut-buffer +(defun x-get-cutbuffer (&optional which-one) + "Return the value of one of the 8 X server cut buffers. +Optional arg WHICH-ONE should be a number from 0 to 7, defaulting to 0. +Cut buffers are considered obsolete; you should use selections instead. +This function does nothing if support for cut buffers was not compiled +into Emacs." + (and (fboundp 'x-get-cutbuffer-internal) + (x-get-cutbuffer-internal + (if which-one + (aref [CUT_BUFFER0 CUT_BUFFER1 CUT_BUFFER2 CUT_BUFFER3 + CUT_BUFFER4 CUT_BUFFER5 CUT_BUFFER6 CUT_BUFFER7] + which-one) + 'CUT_BUFFER0)))) + +;;; FSF name x-set-cut-buffer +(defun x-store-cutbuffer (string &optional push) + "Store STRING into the X server's primary cut buffer. +If PUSH is non-nil, also rotate the cut buffers: +this means the previous value of the primary cut buffer moves the second +cut buffer, and the second to the third, and so on (there are 8 buffers.) +Cut buffers are considered obsolete; you should use selections instead. +This function does nothing if support for cut buffers was not compiled +into Emacs." + (and (fboundp 'x-store-cutbuffer-internal) + (progn + ;; Check the data type of STRING. + (substring string 0 0) + (if push + (x-rotate-cutbuffers-internal 1)) + (x-store-cutbuffer-internal 'CUT_BUFFER0 string)))) + + +;FSFmacs (provide 'select) + +;;; x-select.el ends here.