113 lines
4.1 KiB
EmacsLisp
113 lines
4.1 KiB
EmacsLisp
;;; xclip.el --- Emacs Interface to XClip
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;; Copyright (C) 2007 Leo Shidai Liu
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;; Author: Leo Shidai Liu <shidai.liu@gmail.com>
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;; Keywords: convenience, tools
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;; Created: 2007-12-30
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;; $Id: xclip.el,v 0.9 2008/02/10 11:12:56 leo Exp $
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;; This file is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;; This file is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;; This code provides an Emacs interface to the tool with the same
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;; name on http://people.debian.org/~kims/xclip/.
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;;; Code:
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(defvar xclip-program (executable-find "xclip")
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"Name of XClip program tool.")
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(defvar xclip-select-enable-clipboard t
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"Non-nil means cutting and pasting uses the clipboard.
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This is in addition to, but in preference to, the primary selection.")
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(defvar xclip-last-selected-text-clipboard nil
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"The value of the CLIPBOARD X selection from xclip.")
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(defvar xclip-last-selected-text-primary nil
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"The value of the PRIMARY X selection from xclip.")
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(defun xclip-set-selection (type data)
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"TYPE is a symbol: primary, secondary and clipboard.
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See `x-set-selection'."
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(when (and xclip-program (getenv "DISPLAY"))
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(let* ((process-connection-type nil)
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(proc (start-process "xclip" nil "xclip"
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"-selection" (symbol-name type))))
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(process-send-string proc data)
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(process-send-eof proc))))
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(defun xclip-select-text (text &optional push)
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"See `x-select-text'."
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(xclip-set-selection 'primary text)
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(setq xclip-last-selected-text-primary text)
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(when xclip-select-enable-clipboard
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(xclip-set-selection 'clipboard text)
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(setq xclip-last-selected-text-clipboard text)))
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(defun xclip-selection-value ()
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"See `x-cut-buffer-or-selection-value'."
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(when (and xclip-program (getenv "DISPLAY"))
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(let (clip-text primary-text)
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(when xclip-select-enable-clipboard
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(setq clip-text (shell-command-to-string "xclip -o -selection clipboard"))
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(setq clip-text
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(cond ;; check clipboard selection
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((or (not clip-text) (string= clip-text ""))
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(setq xclip-last-selected-text-primary nil))
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((eq clip-text xclip-last-selected-text-clipboard) nil)
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((string= clip-text xclip-last-selected-text-clipboard)
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;; Record the newer string,
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;; so subsequent calls can use the `eq' test.
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(setq xclip-last-selected-text-clipboard clip-text)
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nil)
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(t (setq xclip-last-selected-text-clipboard clip-text)))))
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(setq primary-text (shell-command-to-string "xclip -o"))
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(setq primary-text
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(cond ;; check primary selection
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((or (not primary-text) (string= primary-text ""))
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(setq xclip-last-selected-text-primary nil))
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((eq primary-text xclip-last-selected-text-primary) nil)
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((string= primary-text xclip-last-selected-text-primary)
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;; Record the newer string,
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;; so subsequent calls can use the `eq' test.
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(setq xclip-last-selected-text-primary primary-text)
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nil)
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(t (setq xclip-last-selected-text-primary primary-text))))
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(or clip-text primary-text))))
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;;;###autoload
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(defun turn-on-xclip ()
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(interactive)
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(setq interprogram-cut-function 'xclip-select-text)
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(setq interprogram-paste-function 'xclip-selection-value))
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;;;###autoload
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(defun turn-off-xclip ()
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(interactive)
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(setq interprogram-cut-function nil)
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(setq interprogram-paste-function nil))
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(add-hook 'terminal-init-xterm-hook 'turn-on-xclip)
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(provide 'xclip)
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;;; xclip.el ends here
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