2001-07-16 12:23:00 +00:00
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;;; mouse-sel.el --- multi-click selection support for Emacs 19
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1993-11-08 14:46:50 +00:00
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2005-08-06 22:13:43 +00:00
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;; Copyright (C) 1993, 1994, 1995, 2001, 2002, 2003, 2004,
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2006-02-06 15:23:23 +00:00
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;; 2005, 2006 Free Software Foundation, Inc.
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1993-11-08 14:46:50 +00:00
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2002-07-07 09:11:10 +00:00
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;; Author: Mike Williams <mdub@bigfoot.com>
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1993-11-08 14:46:50 +00:00
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;; Keywords: mouse
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;; This file is part of GNU Emacs.
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;; GNU Emacs 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 2, or (at your option)
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;; any later version.
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;; GNU Emacs 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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1996-01-14 07:34:30 +00:00
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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 the
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2005-07-04 23:32:44 +00:00
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;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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1996-01-14 07:34:30 +00:00
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1994-06-17 20:04:22 +00:00
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;;; Commentary:
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1996-01-14 07:34:30 +00:00
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1993-11-08 14:46:50 +00:00
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;; This module provides multi-click mouse support for GNU Emacs versions
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;; 19.18 and later. I've tried to make it behave more like standard X
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;; clients (eg. xterm) than the default Emacs 19 mouse selection handlers.
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;; Basically:
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;;
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;; * Clicking mouse-1 starts (cancels) selection, dragging extends it.
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;;
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;; * Clicking or dragging mouse-3 extends the selection as well.
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;;
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;; * Double-clicking on word constituents selects words.
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;; Double-clicking on symbol constituents selects symbols.
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;; Double-clicking on quotes or parentheses selects sexps.
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;; Double-clicking on whitespace selects whitespace.
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;; Triple-clicking selects lines.
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1995-04-19 04:35:22 +00:00
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;; Quad-clicking selects paragraphs.
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1993-11-08 14:46:50 +00:00
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;;
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;; * Selecting sets the region & X primary selection, but does NOT affect
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;; the kill-ring. Because the mouse handlers set the primary selection
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;; directly, mouse-sel sets the variables interprogram-cut-function
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;; and interprogram-paste-function to nil.
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;;
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1995-04-19 04:35:22 +00:00
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;; * Clicking mouse-2 inserts the contents of the primary selection at
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;; the mouse position (or point, if mouse-yank-at-point is non-nil).
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1993-11-08 14:46:50 +00:00
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;;
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1994-02-02 23:19:11 +00:00
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;; * Pressing mouse-2 while selecting or extending copies selection
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1993-11-08 14:46:50 +00:00
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;; to the kill ring. Pressing mouse-1 or mouse-3 kills it.
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2001-11-27 15:52:52 +00:00
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;;
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1994-02-02 23:19:11 +00:00
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;; * Double-clicking mouse-3 also kills selection.
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2001-11-27 15:52:52 +00:00
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;;
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1995-04-19 04:35:22 +00:00
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;; * M-mouse-1, M-mouse-2 & M-mouse-3 work similarly to mouse-1, mouse-2
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;; & mouse-3, but operate on the X secondary selection rather than the
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;; primary selection and region.
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1993-11-08 14:46:50 +00:00
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;;
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1994-02-02 23:19:11 +00:00
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;; This module requires my thingatpt.el module, which it uses to find the
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;; bounds of words, lines, sexps, etc.
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1993-11-08 14:46:50 +00:00
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;;
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;; Thanks to KevinB@bartley.demon.co.uk for his useful input.
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;;
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1994-02-02 23:19:11 +00:00
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;;--- Customisation -------------------------------------------------------
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;;
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;; * You may want to use none or more of following:
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1993-11-08 14:46:50 +00:00
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;;
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;; ;; Enable region highlight
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;; (transient-mark-mode 1)
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;;
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;; ;; But only in the selected window
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;; (setq highlight-nonselected-windows nil)
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2001-11-27 15:52:52 +00:00
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;;
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1993-11-08 14:46:50 +00:00
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;; ;; Enable pending-delete
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;; (delete-selection-mode 1)
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;;
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1994-09-15 21:52:44 +00:00
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;; * You can control the way mouse-sel binds its keys by setting the value
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1993-11-08 14:46:50 +00:00
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;; of mouse-sel-default-bindings before loading mouse-sel.
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;;
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;; (a) If mouse-sel-default-bindings = t (the default)
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2001-11-27 15:52:52 +00:00
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;;
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1995-04-19 04:35:22 +00:00
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;; Mouse sets and insert selection
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1993-11-08 14:46:50 +00:00
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;; mouse-1 mouse-select
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;; mouse-2 mouse-insert-selection
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1995-04-19 04:35:22 +00:00
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;; mouse-3 mouse-extend
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1993-11-08 14:46:50 +00:00
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;;
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;; Selection/kill-ring interaction is disabled
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;; interprogram-cut-function = nil
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;; interprogram-paste-function = nil
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;;
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;; (b) If mouse-sel-default-bindings = 'interprogram-cut-paste
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2001-11-27 15:52:52 +00:00
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;;
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1993-11-08 14:46:50 +00:00
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;; Mouse sets selection, and pastes from kill-ring
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1995-04-19 04:35:22 +00:00
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;; mouse-1 mouse-select
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2002-07-16 13:27:05 +00:00
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;; mouse-2 mouse-insert-selection
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1995-04-19 04:35:22 +00:00
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;; mouse-3 mouse-extend
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2002-07-16 13:27:05 +00:00
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;; In this mode, mouse-insert-selection just calls mouse-yank-at-click.
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2001-11-27 15:52:52 +00:00
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;;
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1993-11-08 14:46:50 +00:00
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;; Selection/kill-ring interaction is retained
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;; interprogram-cut-function = x-select-text
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;; interprogram-paste-function = x-cut-buffer-or-selection-value
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2001-11-27 15:52:52 +00:00
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;;
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1993-11-08 14:46:50 +00:00
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;; What you lose is the ability to select some text in
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;; delete-selection-mode and yank over the top of it.
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2001-11-27 15:52:52 +00:00
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;;
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1993-11-08 14:46:50 +00:00
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;; (c) If mouse-sel-default-bindings = nil, no bindings are made.
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;;
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1994-03-07 02:29:26 +00:00
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;; * By default, mouse-insert-selection (mouse-2) inserts the selection at
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;; the mouse position. You can tell it to insert at point instead with:
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;;
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1994-05-23 04:59:35 +00:00
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;; (setq mouse-yank-at-point t)
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1994-03-07 02:29:26 +00:00
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;;
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1993-11-08 14:46:50 +00:00
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;; * I like to leave point at the end of the region nearest to where the
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;; mouse was, even though this makes region highlighting mis-leading (the
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;; cursor makes it look like one extra character is selected). You can
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;; disable this behaviour with:
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;;
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;; (setq mouse-sel-leave-point-near-mouse nil)
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;;
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1995-04-19 04:35:22 +00:00
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;; * By default, mouse-select cycles the click count after 4 clicks. That
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;; is, clicking mouse-1 five times has the same effect as clicking it
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;; once, clicking six times has the same effect as clicking twice, etc.
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1993-11-08 14:46:50 +00:00
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;; Disable this behaviour with:
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;;
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;; (setq mouse-sel-cycle-clicks nil)
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;;
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1995-04-19 04:35:22 +00:00
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;; * The variables mouse-sel-{set,get}-selection-function control how the
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;; selection is handled. Under X Windows, these variables default so
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1993-11-08 14:46:50 +00:00
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;; that the X primary selection is used. Under other windowing systems,
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;; alternate functions are used, which simply store the selection value
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;; in a variable.
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;;
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;; * You can change the selection highlight face by altering the properties
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;; of mouse-drag-overlay, eg.
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;;
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;; (overlay-put mouse-drag-overlay 'face 'bold)
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1996-01-14 07:34:30 +00:00
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;;; Code:
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1993-11-08 14:46:50 +00:00
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(require 'mouse)
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(require 'thingatpt)
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1997-07-15 07:43:48 +00:00
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(eval-when-compile
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(require 'cl))
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1993-11-08 14:46:50 +00:00
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;;=== User Variables ======================================================
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1997-07-15 07:43:48 +00:00
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(defgroup mouse-sel nil
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"Mouse selection enhancement."
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:group 'mouse)
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(defcustom mouse-sel-leave-point-near-mouse t
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"*Leave point near last mouse position.
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If non-nil, \\[mouse-select] and \\[mouse-extend] will leave point at the end
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1993-11-08 14:46:50 +00:00
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of the region nearest to where the mouse last was.
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If nil, point will always be placed at the beginning of the region."
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:type 'boolean
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:group 'mouse-sel)
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(defcustom mouse-sel-cycle-clicks t
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"*If non-nil, \\[mouse-select] cycles the click-counts after 4 clicks."
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:type 'boolean
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:group 'mouse-sel)
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(defcustom mouse-sel-default-bindings t
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"*Control mouse bindings."
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:type '(choice (const :tag "none" nil)
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1998-06-24 09:19:00 +00:00
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(const :tag "cut and paste" interprogram-cut-paste)
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(other :tag "default bindings" t))
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1997-07-15 07:43:48 +00:00
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:group 'mouse-sel)
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2002-07-16 13:27:05 +00:00
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;;=== Key bindings ========================================================
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(defconst mouse-sel-bound-events
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'(;; Primary selection bindings.
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;;
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;; Bind keys to `ignore' instead of unsetting them because modes may
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;; bind `down-mouse-1', for instance, without binding `mouse-1'.
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;; If we unset `mouse-1', this leads to a bitch_at_user when the
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;; mouse goes up because no matching binding is found for that.
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([mouse-1] . ignore)
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([drag-mouse-1] . ignore)
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([mouse-3] . ignore)
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([down-mouse-1] . mouse-select)
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([down-mouse-3] . mouse-extend)
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([mouse-2] . mouse-insert-selection)
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;; Secondary selection bindings.
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([M-mouse-1] . ignore)
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([M-drag-mouse-1] . ignore)
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([M-mouse-3] . ignore)
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([M-down-mouse-1] . mouse-select-secondary)
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([M-mouse-2] . mouse-insert-secondary)
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([M-down-mouse-3] . mouse-extend-secondary))
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"An alist of events that `mouse-sel-mode' binds.")
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1997-07-15 07:43:48 +00:00
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;;=== User Command ========================================================
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2004-03-04 16:55:51 +00:00
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(defvar mouse-sel-has-been-enabled nil
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"Non-nil if Mouse Sel mode has been enabled at least once.")
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2002-07-16 13:27:05 +00:00
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(defvar mouse-sel-original-bindings nil)
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(defvar mouse-sel-original-interprogram-cut-function nil)
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2002-07-16 13:33:29 +00:00
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(defvar mouse-sel-original-interprogram-paste-function nil)
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2002-07-16 13:27:05 +00:00
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1997-07-15 07:43:48 +00:00
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;;;###autoload
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(define-minor-mode mouse-sel-mode
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"Toggle Mouse Sel mode.
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With prefix ARG, turn Mouse Sel mode on if and only if ARG is positive.
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Returns the new status of Mouse Sel mode (non-nil means on).
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When Mouse Sel mode is enabled, mouse selection is enhanced in various ways:
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- Clicking mouse-1 starts (cancels) selection, dragging extends it.
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- Clicking or dragging mouse-3 extends the selection as well.
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- Double-clicking on word constituents selects words.
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Double-clicking on symbol constituents selects symbols.
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Double-clicking on quotes or parentheses selects sexps.
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Double-clicking on whitespace selects whitespace.
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Triple-clicking selects lines.
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Quad-clicking selects paragraphs.
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- Selecting sets the region & X primary selection, but does NOT affect
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2002-07-16 13:27:05 +00:00
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the `kill-ring', nor do the kill-ring functions change the X selection.
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2000-08-08 18:32:38 +00:00
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Because the mouse handlers set the primary selection directly,
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2002-07-16 13:27:05 +00:00
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mouse-sel sets the variables `interprogram-cut-function' and
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`interprogram-paste-function' to nil.
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1993-11-08 14:46:50 +00:00
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1997-07-15 07:43:48 +00:00
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- Clicking mouse-2 inserts the contents of the primary selection at
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2001-08-21 18:19:55 +00:00
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the mouse position (or point, if `mouse-yank-at-point' is non-nil).
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1993-11-08 14:46:50 +00:00
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1997-07-15 07:43:48 +00:00
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- Pressing mouse-2 while selecting or extending copies selection
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to the kill ring. Pressing mouse-1 or mouse-3 kills it.
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- Double-clicking mouse-3 also kills selection.
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- M-mouse-1, M-mouse-2 & M-mouse-3 work similarly to mouse-1, mouse-2
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& mouse-3, but operate on the X secondary selection rather than the
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primary selection and region."
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2002-07-16 13:27:05 +00:00
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:global t
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2004-10-25 08:29:12 +00:00
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:group 'mouse-sel
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2002-07-16 13:27:05 +00:00
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(if mouse-sel-mode
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(progn
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2004-10-28 23:34:51 +00:00
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(add-hook 'x-lost-selection-functions 'mouse-sel-lost-selection-hook)
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2002-07-16 13:27:05 +00:00
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(when mouse-sel-default-bindings
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;; Save original bindings and replace them with new ones.
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(setq mouse-sel-original-bindings
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(mapcar (lambda (binding)
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(let ((event (car binding)))
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(prog1 (cons event (lookup-key global-map event))
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(global-set-key event (cdr binding)))))
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mouse-sel-bound-events))
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;; Update interprogram functions.
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(setq mouse-sel-original-interprogram-cut-function
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interprogram-cut-function
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mouse-sel-original-interprogram-paste-function
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2004-03-04 16:55:51 +00:00
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interprogram-paste-function
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mouse-sel-has-been-enabled t)
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2002-07-16 13:27:05 +00:00
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(unless (eq mouse-sel-default-bindings 'interprogram-cut-paste)
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(setq interprogram-cut-function nil
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interprogram-paste-function nil))))
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1997-07-15 07:43:48 +00:00
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2002-07-14 10:14:28 +00:00
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;; Restore original bindings
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2004-10-28 23:34:51 +00:00
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(remove-hook 'x-lost-selection-functions 'mouse-sel-lost-selection-hook)
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2002-07-16 13:27:05 +00:00
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(dolist (binding mouse-sel-original-bindings)
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(global-set-key (car binding) (cdr binding)))
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2004-03-04 16:56:14 +00:00
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;; Restore the old values of these variables,
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;; only if they were actually saved previously.
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2004-03-04 16:55:51 +00:00
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(if mouse-sel-has-been-enabled
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(setq interprogram-cut-function
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mouse-sel-original-interprogram-cut-function
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interprogram-paste-function
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mouse-sel-original-interprogram-paste-function))))
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1993-11-08 14:46:50 +00:00
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1995-04-19 04:35:22 +00:00
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;;=== Internal Variables/Constants ========================================
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2001-11-27 15:52:52 +00:00
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(defvar mouse-sel-primary-thing nil
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1995-04-19 04:35:22 +00:00
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"Type of PRIMARY selection in current buffer.")
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(make-variable-buffer-local 'mouse-sel-primary-thing)
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2001-11-27 15:52:52 +00:00
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(defvar mouse-sel-secondary-thing nil
|
1995-04-19 04:35:22 +00:00
|
|
|
"Type of SECONDARY selection in current buffer.")
|
|
|
|
(make-variable-buffer-local 'mouse-sel-secondary-thing)
|
|
|
|
|
|
|
|
;; Ensure that secondary overlay is defined
|
1997-07-15 07:43:48 +00:00
|
|
|
(unless (overlayp mouse-secondary-overlay)
|
1995-04-19 04:35:22 +00:00
|
|
|
(setq mouse-secondary-overlay (make-overlay 1 1))
|
|
|
|
(overlay-put mouse-secondary-overlay 'face 'secondary-selection))
|
1993-11-08 14:46:50 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
(defconst mouse-sel-selection-alist
|
|
|
|
'((PRIMARY mouse-drag-overlay mouse-sel-primary-thing)
|
|
|
|
(SECONDARY mouse-secondary-overlay mouse-sel-secondary-thing))
|
2001-08-21 18:19:55 +00:00
|
|
|
"Alist associating selections with variables.
|
|
|
|
Each element is of the form:
|
1993-11-08 14:46:50 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
(SELECTION-NAME OVERLAY-SYMBOL SELECTION-THING-SYMBOL)
|
1993-11-08 14:46:50 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
where SELECTION-NAME = name of selection
|
|
|
|
OVERLAY-SYMBOL = name of variable containing overlay to use
|
|
|
|
SELECTION-THING-SYMBOL = name of variable where the current selection
|
|
|
|
type for this selection should be stored.")
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1997-07-15 07:43:48 +00:00
|
|
|
(defvar mouse-sel-set-selection-function
|
|
|
|
(if (eq mouse-sel-default-bindings 'interprogram-cut-paste)
|
|
|
|
'x-set-selection
|
|
|
|
(lambda (selection value)
|
|
|
|
(if (eq selection 'PRIMARY)
|
|
|
|
(x-select-text value)
|
|
|
|
(x-set-selection selection value))))
|
1993-11-08 14:46:50 +00:00
|
|
|
"Function to call to set selection.
|
1995-04-19 04:35:22 +00:00
|
|
|
Called with two arguments:
|
|
|
|
|
|
|
|
SELECTION, the name of the selection concerned, and
|
1996-10-26 18:13:52 +00:00
|
|
|
VALUE, the text to store.
|
1997-07-15 07:43:48 +00:00
|
|
|
|
|
|
|
This sets the selection as well as the cut buffer for the older applications,
|
|
|
|
unless `mouse-sel-default-bindings' is `interprogram-cut-paste'.")
|
1993-11-08 14:46:50 +00:00
|
|
|
|
|
|
|
(defvar mouse-sel-get-selection-function
|
1997-07-15 07:43:48 +00:00
|
|
|
(lambda (selection)
|
|
|
|
(if (eq selection 'PRIMARY)
|
2003-07-25 12:21:01 +00:00
|
|
|
(or (x-cut-buffer-or-selection-value)
|
|
|
|
(bound-and-true-p x-last-selected-text)
|
|
|
|
(bound-and-true-p x-last-selected-text-primary))
|
1997-07-15 07:43:48 +00:00
|
|
|
(x-get-selection selection)))
|
1993-11-08 14:46:50 +00:00
|
|
|
"Function to call to get the selection.
|
1995-04-19 04:35:22 +00:00
|
|
|
Called with one argument:
|
1993-11-08 14:46:50 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
SELECTION: the name of the selection concerned.")
|
|
|
|
|
|
|
|
;;=== Support/access functions ============================================
|
|
|
|
|
|
|
|
(defun mouse-sel-determine-selection-thing (nclicks)
|
|
|
|
"Determine what `thing' `mouse-sel' should operate on.
|
|
|
|
The first argument is NCLICKS, is the number of consecutive
|
|
|
|
mouse clicks at the same position.
|
|
|
|
|
|
|
|
Double-clicking on word constituents selects words.
|
|
|
|
Double-clicking on symbol constituents selects symbols.
|
|
|
|
Double-clicking on quotes or parentheses selects sexps.
|
|
|
|
Double-clicking on whitespace selects whitespace.
|
|
|
|
Triple-clicking selects lines.
|
|
|
|
Quad-clicking selects paragraphs.
|
|
|
|
|
|
|
|
Feel free to re-define this function to support your own desired
|
|
|
|
multi-click semantics."
|
1993-11-08 14:46:50 +00:00
|
|
|
(let* ((next-char (char-after (point)))
|
1995-04-19 04:35:22 +00:00
|
|
|
(char-syntax (if next-char (char-syntax next-char))))
|
2001-11-27 15:52:52 +00:00
|
|
|
(if mouse-sel-cycle-clicks
|
1995-04-19 04:35:22 +00:00
|
|
|
(setq nclicks (1+ (% (1- nclicks) 4))))
|
1993-11-08 14:46:50 +00:00
|
|
|
(cond
|
|
|
|
((= nclicks 1) nil)
|
1995-04-19 04:35:22 +00:00
|
|
|
((= nclicks 3) 'line)
|
|
|
|
((>= nclicks 4) 'paragraph)
|
1993-11-08 14:46:50 +00:00
|
|
|
((memq char-syntax '(?\( ?\) ?\" ?')) 'sexp)
|
2003-02-18 10:57:39 +00:00
|
|
|
((memq next-char '(?\s ?\t ?\n)) 'whitespace)
|
1993-11-08 14:46:50 +00:00
|
|
|
((eq char-syntax ?_) 'symbol)
|
|
|
|
((eq char-syntax ?w) 'word))))
|
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
(defun mouse-sel-set-selection (selection value)
|
|
|
|
"Set the specified SELECTION to VALUE."
|
|
|
|
(if mouse-sel-set-selection-function
|
|
|
|
(funcall mouse-sel-set-selection-function selection value)
|
|
|
|
(put 'mouse-sel-internal-selection selection value)))
|
|
|
|
|
|
|
|
(defun mouse-sel-get-selection (selection)
|
|
|
|
"Get the value of the specified SELECTION."
|
|
|
|
(if mouse-sel-get-selection-function
|
|
|
|
(funcall mouse-sel-get-selection-function selection)
|
|
|
|
(get 'mouse-sel-internal-selection selection)))
|
|
|
|
|
|
|
|
(defun mouse-sel-selection-overlay (selection)
|
|
|
|
"Return overlay corresponding to SELECTION."
|
|
|
|
(let ((symbol (nth 1 (assoc selection mouse-sel-selection-alist))))
|
|
|
|
(or symbol (error "No overlay corresponding to %s selection" selection))
|
|
|
|
(symbol-value symbol)))
|
|
|
|
|
|
|
|
(defun mouse-sel-selection-thing (selection)
|
|
|
|
"Return overlay corresponding to SELECTION."
|
|
|
|
(let ((symbol (nth 2 (assoc selection mouse-sel-selection-alist))))
|
|
|
|
(or symbol (error "No symbol corresponding to %s selection" selection))
|
|
|
|
symbol))
|
|
|
|
|
|
|
|
(defun mouse-sel-region-to-primary (orig-window)
|
|
|
|
"Convert region to PRIMARY overlay and deactivate region.
|
2001-11-27 15:52:52 +00:00
|
|
|
Argument ORIG-WINDOW specifies the window the cursor was in when the
|
|
|
|
originating command was issued, and is used to determine whether the
|
1995-04-19 04:35:22 +00:00
|
|
|
region was visible or not."
|
|
|
|
(if transient-mark-mode
|
|
|
|
(let ((overlay (mouse-sel-selection-overlay 'PRIMARY)))
|
|
|
|
(cond
|
2001-11-27 15:52:52 +00:00
|
|
|
((and mark-active
|
|
|
|
(or highlight-nonselected-windows
|
1995-04-19 04:35:22 +00:00
|
|
|
(eq orig-window (selected-window))))
|
|
|
|
;; Region was visible, so convert region to overlay
|
2001-11-27 15:52:52 +00:00
|
|
|
(move-overlay overlay (region-beginning) (region-end)
|
1995-04-19 04:35:22 +00:00
|
|
|
(current-buffer)))
|
|
|
|
((eq orig-window (selected-window))
|
|
|
|
;; Point was visible, so set overlay at point
|
|
|
|
(move-overlay overlay (point) (point) (current-buffer)))
|
|
|
|
(t
|
|
|
|
;; Nothing was visible, so remove overlay
|
|
|
|
(delete-overlay overlay)))
|
|
|
|
(setq mark-active nil))))
|
|
|
|
|
|
|
|
(defun mouse-sel-primary-to-region (&optional direction)
|
|
|
|
"Convert PRIMARY overlay to region.
|
|
|
|
Optional argument DIRECTION specifies the mouse drag direction: a value of
|
|
|
|
1 indicates that the mouse was dragged left-to-right, otherwise it was
|
|
|
|
dragged right-to-left."
|
|
|
|
(let* ((overlay (mouse-sel-selection-overlay 'PRIMARY))
|
|
|
|
(start (overlay-start overlay))
|
|
|
|
(end (overlay-end overlay)))
|
|
|
|
(if (eq start end)
|
|
|
|
(progn
|
|
|
|
(if start (goto-char start))
|
|
|
|
(deactivate-mark))
|
|
|
|
(if (and mouse-sel-leave-point-near-mouse (eq direction 1))
|
|
|
|
(progn
|
|
|
|
(goto-char end)
|
|
|
|
(push-mark start 'nomsg 'active))
|
|
|
|
(goto-char start)
|
|
|
|
(push-mark end 'nomsg 'active)))
|
|
|
|
(if transient-mark-mode (delete-overlay overlay))))
|
|
|
|
|
|
|
|
(defmacro mouse-sel-eval-at-event-end (event &rest forms)
|
|
|
|
"Evaluate forms at mouse position.
|
|
|
|
Move to the end position of EVENT, execute FORMS, and restore original
|
|
|
|
point and window."
|
2001-11-27 15:52:52 +00:00
|
|
|
`(let ((posn (event-end ,event)))
|
|
|
|
(if posn (mouse-minibuffer-check ,event))
|
|
|
|
(if (and posn (not (windowp (posn-window posn))))
|
|
|
|
(error "Cursor not in text area of window"))
|
|
|
|
(let (orig-window orig-point-marker)
|
|
|
|
(setq orig-window (selected-window))
|
|
|
|
(if posn (select-window (posn-window posn)))
|
|
|
|
(setq orig-point-marker (point-marker))
|
|
|
|
(if (and posn (numberp (posn-point posn)))
|
|
|
|
(goto-char (posn-point posn)))
|
|
|
|
(unwind-protect
|
|
|
|
(progn
|
|
|
|
,@forms)
|
|
|
|
(goto-char (marker-position orig-point-marker))
|
|
|
|
(move-marker orig-point-marker nil)
|
|
|
|
(select-window orig-window)))))
|
1995-04-19 04:35:22 +00:00
|
|
|
|
|
|
|
(put 'mouse-sel-eval-at-event-end 'lisp-indent-hook 1)
|
|
|
|
|
|
|
|
;;=== Select ==============================================================
|
|
|
|
|
|
|
|
(defun mouse-select (event)
|
1993-11-08 14:46:50 +00:00
|
|
|
"Set region/selection using the mouse.
|
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
Click sets point & mark to click position.
|
1993-11-08 14:46:50 +00:00
|
|
|
Dragging extends region/selection.
|
|
|
|
|
2001-11-27 15:52:52 +00:00
|
|
|
Multi-clicking selects word/lines/paragraphs, as determined by
|
1995-04-19 04:35:22 +00:00
|
|
|
'mouse-sel-determine-selection-thing.
|
1993-11-08 14:46:50 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
Clicking mouse-2 while selecting copies selected text to the kill-ring.
|
|
|
|
Clicking mouse-1 or mouse-3 kills the selected text.
|
1993-11-08 14:46:50 +00:00
|
|
|
|
|
|
|
This should be bound to a down-mouse event."
|
1995-04-19 04:35:22 +00:00
|
|
|
(interactive "@e")
|
2005-05-11 12:33:44 +00:00
|
|
|
(let (select)
|
1995-04-19 04:35:22 +00:00
|
|
|
(unwind-protect
|
2005-05-11 12:33:44 +00:00
|
|
|
(setq select (mouse-select-internal 'PRIMARY event))
|
|
|
|
(if (and select (listp select))
|
|
|
|
(push (cons 'mouse-2 (cdr event)) unread-command-events)
|
|
|
|
(mouse-sel-primary-to-region select)))))
|
1995-04-19 04:35:22 +00:00
|
|
|
|
|
|
|
(defun mouse-select-secondary (event)
|
1997-07-15 07:43:48 +00:00
|
|
|
"Set secondary selection using the mouse.
|
1995-04-19 04:35:22 +00:00
|
|
|
|
|
|
|
Click sets the start of the secondary selection to click position.
|
|
|
|
Dragging extends the secondary selection.
|
1993-11-08 14:46:50 +00:00
|
|
|
|
2001-11-27 15:52:52 +00:00
|
|
|
Multi-clicking selects word/lines/paragraphs, as determined by
|
1995-04-19 04:35:22 +00:00
|
|
|
'mouse-sel-determine-selection-thing.
|
1993-11-08 14:46:50 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
Clicking mouse-2 while selecting copies selected text to the kill-ring.
|
|
|
|
Clicking mouse-1 or mouse-3 kills the selected text.
|
1993-11-08 14:46:50 +00:00
|
|
|
|
|
|
|
This should be bound to a down-mouse event."
|
1997-07-15 07:43:48 +00:00
|
|
|
(interactive "e")
|
1995-04-19 04:35:22 +00:00
|
|
|
(mouse-select-internal 'SECONDARY event))
|
|
|
|
|
|
|
|
(defun mouse-select-internal (selection event)
|
2005-05-11 12:33:44 +00:00
|
|
|
"Set SELECTION using the mouse, with EVENT as the initial down-event.
|
|
|
|
Normally, this returns the direction in which the selection was
|
|
|
|
made: a value of 1 indicates that the mouse was dragged
|
|
|
|
left-to-right, otherwise it was dragged right-to-left.
|
|
|
|
|
|
|
|
However, if `mouse-1-click-follows-link' is non-nil and the
|
|
|
|
subsequent mouse events specify following a link, this returns
|
|
|
|
the final mouse-event. In that case, the selection is not set."
|
1995-04-19 04:35:22 +00:00
|
|
|
(mouse-sel-eval-at-event-end event
|
|
|
|
(let ((thing-symbol (mouse-sel-selection-thing selection))
|
|
|
|
(overlay (mouse-sel-selection-overlay selection)))
|
|
|
|
(set thing-symbol
|
|
|
|
(mouse-sel-determine-selection-thing (event-click-count event)))
|
|
|
|
(let ((object-bounds (bounds-of-thing-at-point
|
|
|
|
(symbol-value thing-symbol))))
|
|
|
|
(if object-bounds
|
|
|
|
(progn
|
|
|
|
(move-overlay overlay
|
|
|
|
(car object-bounds) (cdr object-bounds)
|
|
|
|
(current-buffer)))
|
|
|
|
(move-overlay overlay (point) (point) (current-buffer)))))
|
2005-05-11 12:33:44 +00:00
|
|
|
(catch 'follow-link
|
|
|
|
(mouse-extend-internal selection event t))))
|
1995-04-19 04:35:22 +00:00
|
|
|
|
|
|
|
;;=== Extend ==============================================================
|
|
|
|
|
|
|
|
(defun mouse-extend (event)
|
|
|
|
"Extend region/selection using the mouse."
|
1993-11-08 14:46:50 +00:00
|
|
|
(interactive "e")
|
1995-04-19 04:35:22 +00:00
|
|
|
(let ((orig-window (selected-window))
|
|
|
|
direction)
|
|
|
|
(select-window (posn-window (event-end event)))
|
1993-11-08 14:46:50 +00:00
|
|
|
(unwind-protect
|
1995-04-19 04:35:22 +00:00
|
|
|
(progn
|
|
|
|
(mouse-sel-region-to-primary orig-window)
|
|
|
|
(setq direction (mouse-extend-internal 'PRIMARY event)))
|
|
|
|
(mouse-sel-primary-to-region direction))))
|
|
|
|
|
|
|
|
(defun mouse-extend-secondary (event)
|
|
|
|
"Extend secondary selection using the mouse."
|
|
|
|
(interactive "e")
|
|
|
|
(save-window-excursion
|
|
|
|
(mouse-extend-internal 'SECONDARY event)))
|
|
|
|
|
2005-05-11 12:33:44 +00:00
|
|
|
(defun mouse-extend-internal (selection &optional initial-event no-process)
|
1995-04-19 04:35:22 +00:00
|
|
|
"Extend specified SELECTION using the mouse.
|
|
|
|
Track mouse-motion events, adjusting the SELECTION appropriately.
|
2005-05-11 12:33:44 +00:00
|
|
|
Optional argument INITIAL-EVENT specifies an initial down-mouse event.
|
|
|
|
Optional argument NO-PROCESS means not to process the initial
|
|
|
|
event.
|
1995-04-19 04:35:22 +00:00
|
|
|
|
|
|
|
See documentation for mouse-select-internal for more details."
|
|
|
|
(mouse-sel-eval-at-event-end initial-event
|
2001-11-27 15:52:52 +00:00
|
|
|
(let ((orig-cursor-type
|
1995-04-19 04:35:22 +00:00
|
|
|
(cdr (assoc 'cursor-type (frame-parameters (selected-frame))))))
|
|
|
|
(unwind-protect
|
|
|
|
|
|
|
|
(let* ((thing-symbol (mouse-sel-selection-thing selection))
|
|
|
|
(overlay (mouse-sel-selection-overlay selection))
|
|
|
|
(orig-window (selected-window))
|
|
|
|
(orig-window-frame (window-frame orig-window))
|
|
|
|
(top (nth 1 (window-edges orig-window)))
|
|
|
|
(bottom (nth 3 (window-edges orig-window)))
|
|
|
|
(mark-active nil) ; inhibit normal region highlight
|
|
|
|
(echo-keystrokes 0) ; don't echo mouse events
|
|
|
|
min max
|
|
|
|
direction
|
|
|
|
event)
|
|
|
|
|
|
|
|
;; Get current bounds of overlay
|
|
|
|
(if (eq (overlay-buffer overlay) (current-buffer))
|
|
|
|
(setq min (overlay-start overlay)
|
|
|
|
max (overlay-end overlay))
|
|
|
|
(setq min (point)
|
|
|
|
max min)
|
|
|
|
(set thing-symbol nil))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
|
|
|
|
;; Bar cursor
|
|
|
|
(if (fboundp 'modify-frame-parameters)
|
|
|
|
(modify-frame-parameters (selected-frame)
|
|
|
|
'((cursor-type . bar))))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; Handle dragging
|
|
|
|
(track-mouse
|
2001-11-27 15:52:52 +00:00
|
|
|
|
2005-05-11 12:33:44 +00:00
|
|
|
(while (if (and initial-event (not no-process))
|
|
|
|
;; Use initial event
|
1995-04-19 04:35:22 +00:00
|
|
|
(prog1
|
|
|
|
(setq event initial-event)
|
|
|
|
(setq initial-event nil))
|
|
|
|
(setq event (read-event))
|
|
|
|
(and (consp event)
|
|
|
|
(memq (car event) '(mouse-movement switch-frame))))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
(let ((selection-thing (symbol-value thing-symbol))
|
|
|
|
(end (event-end event)))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
(cond
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; Ignore any movement outside the frame
|
|
|
|
((eq (car-safe event) 'switch-frame) nil)
|
|
|
|
((and (posn-window end)
|
|
|
|
(not (eq (let ((posn-w (posn-window end)))
|
|
|
|
(if (windowp posn-w)
|
|
|
|
(window-frame posn-w)
|
|
|
|
posn-w))
|
|
|
|
(window-frame orig-window)))) nil)
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; Different window, same frame
|
|
|
|
((not (eq (posn-window end) orig-window))
|
|
|
|
(let ((end-row (cdr (cdr (mouse-position)))))
|
|
|
|
(cond
|
|
|
|
((and end-row (not (bobp)) (< end-row top))
|
|
|
|
(mouse-scroll-subr orig-window (- end-row top)
|
|
|
|
overlay max))
|
|
|
|
((and end-row (not (eobp)) (>= end-row bottom))
|
|
|
|
(mouse-scroll-subr orig-window (1+ (- end-row bottom))
|
|
|
|
overlay min))
|
|
|
|
)))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; On the mode line
|
|
|
|
((eq (posn-point end) 'mode-line)
|
|
|
|
(mouse-scroll-subr orig-window 1 overlay min))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; In original window
|
|
|
|
(t (goto-char (posn-point end)))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
)
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; Determine direction of drag
|
|
|
|
(cond
|
|
|
|
((and (not direction) (not (eq min max)))
|
|
|
|
(setq direction (if (< (point) (/ (+ min max) 2)) -1 1)))
|
|
|
|
((and (not (eq direction -1)) (<= (point) min))
|
|
|
|
(setq direction -1))
|
|
|
|
((and (not (eq direction 1)) (>= (point) max))
|
|
|
|
(setq direction 1)))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
(if (not selection-thing) nil
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; If dragging forward, goal is next character
|
|
|
|
(if (and (eq direction 1) (not (eobp))) (forward-char 1))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; Move to start/end of selected thing
|
1995-07-18 21:37:14 +00:00
|
|
|
(let ((goal (point)))
|
1995-04-19 04:35:22 +00:00
|
|
|
(goto-char (if (eq 1 direction) min max))
|
|
|
|
(condition-case nil
|
|
|
|
(progn
|
|
|
|
(while (> (* direction (- goal (point))) 0)
|
|
|
|
(forward-thing selection-thing direction))
|
|
|
|
(let ((end (point)))
|
|
|
|
(forward-thing selection-thing (- direction))
|
|
|
|
(goto-char
|
|
|
|
(if (> (* direction (- goal (point))) 0)
|
1995-07-18 21:37:14 +00:00
|
|
|
end (point)))))
|
1995-04-19 04:35:22 +00:00
|
|
|
(error))))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; Move overlay
|
|
|
|
(move-overlay overlay
|
|
|
|
(if (eq 1 direction) min (point))
|
|
|
|
(if (eq -1 direction) max (point))
|
|
|
|
(current-buffer))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
))) ; end track-mouse
|
|
|
|
|
2005-05-11 12:33:44 +00:00
|
|
|
;; Detect follow-link events
|
|
|
|
(when (mouse-sel-follow-link-p initial-event event)
|
|
|
|
(throw 'follow-link event))
|
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; Finish up after dragging
|
|
|
|
(let ((overlay-start (overlay-start overlay))
|
|
|
|
(overlay-end (overlay-end overlay)))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; Set selection
|
|
|
|
(if (not (eq overlay-start overlay-end))
|
|
|
|
(mouse-sel-set-selection
|
|
|
|
selection
|
|
|
|
(buffer-substring overlay-start overlay-end)))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;; Handle copy/kill
|
|
|
|
(let (this-command)
|
|
|
|
(cond
|
|
|
|
((eq (event-basic-type last-input-event) 'mouse-2)
|
|
|
|
(copy-region-as-kill overlay-start overlay-end)
|
|
|
|
(read-event) (read-event))
|
|
|
|
((and (memq (event-basic-type last-input-event)
|
|
|
|
'(mouse-1 mouse-3))
|
|
|
|
(memq 'down (event-modifiers last-input-event)))
|
|
|
|
(kill-region overlay-start overlay-end)
|
|
|
|
(move-overlay overlay overlay-start overlay-start)
|
|
|
|
(read-event) (read-event))
|
|
|
|
((and (eq (event-basic-type last-input-event) 'mouse-3)
|
|
|
|
(memq 'double (event-modifiers last-input-event)))
|
|
|
|
(kill-region overlay-start overlay-end)
|
|
|
|
(move-overlay overlay overlay-start overlay-start)))))
|
|
|
|
|
|
|
|
direction)
|
|
|
|
|
|
|
|
;; Restore cursor
|
|
|
|
(if (fboundp 'modify-frame-parameters)
|
2001-11-27 15:52:52 +00:00
|
|
|
(modify-frame-parameters
|
1995-04-19 04:35:22 +00:00
|
|
|
(selected-frame) (list (cons 'cursor-type orig-cursor-type))))
|
2001-11-27 15:52:52 +00:00
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
))))
|
|
|
|
|
2005-05-11 12:33:44 +00:00
|
|
|
(defun mouse-sel-follow-link-p (initial final)
|
|
|
|
"Return t if we should follow a link, given INITIAL and FINAL mouse events.
|
|
|
|
See `mouse-1-click-follows-link' for details. Currently, Mouse
|
|
|
|
Sel mode does not support using a `double' value to follow links
|
|
|
|
using double-clicks."
|
|
|
|
(and initial final mouse-1-click-follows-link
|
|
|
|
(eq (car initial) 'down-mouse-1)
|
|
|
|
(mouse-on-link-p (posn-point (event-start initial)))
|
|
|
|
(= (posn-point (event-start initial))
|
|
|
|
(posn-point (event-end final)))
|
|
|
|
(= (event-click-count initial) 1)
|
|
|
|
(or (not (integerp mouse-1-click-follows-link))
|
|
|
|
(let ((t0 (posn-timestamp (event-start initial)))
|
|
|
|
(t1 (posn-timestamp (event-end final))))
|
|
|
|
(and (integerp t0) (integerp t1)
|
|
|
|
(if (> mouse-1-click-follows-link 0)
|
|
|
|
(<= (- t1 t0) mouse-1-click-follows-link)
|
|
|
|
(< (- t0 t1) mouse-1-click-follows-link)))))))
|
|
|
|
|
1995-04-19 04:35:22 +00:00
|
|
|
;;=== Paste ===============================================================
|
|
|
|
|
2002-07-16 13:27:05 +00:00
|
|
|
(defun mouse-insert-selection (event arg)
|
1995-04-19 04:35:22 +00:00
|
|
|
"Insert the contents of the PRIMARY selection at mouse click.
|
|
|
|
If `mouse-yank-at-point' is non-nil, insert at point instead."
|
2002-07-16 13:27:05 +00:00
|
|
|
(interactive "e\nP")
|
|
|
|
(if (eq mouse-sel-default-bindings 'interprogram-cut-paste)
|
|
|
|
(mouse-yank-at-click event arg)
|
|
|
|
(mouse-insert-selection-internal 'PRIMARY event)))
|
1995-04-19 04:35:22 +00:00
|
|
|
|
|
|
|
(defun mouse-insert-secondary (event)
|
|
|
|
"Insert the contents of the SECONDARY selection at mouse click.
|
1994-05-23 04:59:35 +00:00
|
|
|
If `mouse-yank-at-point' is non-nil, insert at point instead."
|
1993-11-08 14:46:50 +00:00
|
|
|
(interactive "e")
|
1995-04-19 04:35:22 +00:00
|
|
|
(mouse-insert-selection-internal 'SECONDARY event))
|
|
|
|
|
|
|
|
(defun mouse-insert-selection-internal (selection event)
|
|
|
|
"Insert the contents of the named SELECTION at mouse click.
|
|
|
|
If `mouse-yank-at-point' is non-nil, insert at point instead."
|
2001-11-27 15:52:52 +00:00
|
|
|
(unless mouse-yank-at-point
|
1997-07-15 07:43:48 +00:00
|
|
|
(mouse-set-point event))
|
|
|
|
(when mouse-sel-get-selection-function
|
|
|
|
(push-mark (point) 'nomsg)
|
|
|
|
(insert (or (funcall mouse-sel-get-selection-function selection) ""))))
|
1995-04-19 04:35:22 +00:00
|
|
|
|
1995-07-18 21:37:14 +00:00
|
|
|
;;=== Handle loss of selections ===========================================
|
|
|
|
|
|
|
|
(defun mouse-sel-lost-selection-hook (selection)
|
|
|
|
"Remove the overlay for a lost selection."
|
1995-11-15 18:32:38 +00:00
|
|
|
(let ((overlay (mouse-sel-selection-overlay selection)))
|
1995-07-18 21:37:14 +00:00
|
|
|
(delete-overlay overlay)))
|
|
|
|
|
1997-07-15 07:43:48 +00:00
|
|
|
(provide 'mouse-sel)
|
1995-04-19 04:35:22 +00:00
|
|
|
|
2004-10-28 23:34:51 +00:00
|
|
|
;; arch-tag: 86e6c73f-deaa-48d3-a24e-c565fda1f7d7
|
2001-07-16 12:23:00 +00:00
|
|
|
;;; mouse-sel.el ends here
|