;;; mouse-sel.el --- multi-click selection support for Emacs 19
-;; Copyright (C) 1993,1994,1995,2001,2002 Free Software Foundation, Inc.
+;; Copyright (C) 1993, 1994, 1995, 2001, 2002, 2003, 2004,
+;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;; Author: Mike Williams <mdub@bigfoot.com>
;; Keywords: mouse
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs 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.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; * I like to leave point at the end of the region nearest to where the
;; mouse was, even though this makes region highlighting mis-leading (the
;; cursor makes it look like one extra character is selected). You can
-;; disable this behaviour with:
+;; disable this behavior with:
;;
;; (setq mouse-sel-leave-point-near-mouse nil)
;;
;; * By default, mouse-select cycles the click count after 4 clicks. That
;; is, clicking mouse-1 five times has the same effect as clicking it
;; once, clicking six times has the same effect as clicking twice, etc.
-;; Disable this behaviour with:
+;; Disable this behavior with:
;;
;; (setq mouse-sel-cycle-clicks nil)
;;
;; that the X primary selection is used. Under other windowing systems,
;; alternate functions are used, which simply store the selection value
;; in a variable.
-;;
-;; * You can change the selection highlight face by altering the properties
-;; of mouse-drag-overlay, eg.
-;;
-;; (overlay-put mouse-drag-overlay 'face 'bold)
;;; Code:
:group 'mouse)
(defcustom mouse-sel-leave-point-near-mouse t
- "*Leave point near last mouse position.
+ "Leave point near last mouse position.
If non-nil, \\[mouse-select] and \\[mouse-extend] will leave point at the end
of the region nearest to where the mouse last was.
If nil, point will always be placed at the beginning of the region."
:group 'mouse-sel)
(defcustom mouse-sel-cycle-clicks t
- "*If non-nil, \\[mouse-select] cycles the click-counts after 4 clicks."
+ "If non-nil, \\[mouse-select] cycles the click-counts after 4 clicks."
:type 'boolean
:group 'mouse-sel)
(defcustom mouse-sel-default-bindings t
- "*Control mouse bindings."
+ "Control mouse bindings."
:type '(choice (const :tag "none" nil)
(const :tag "cut and paste" interprogram-cut-paste)
(other :tag "default bindings" t))
& mouse-3, but operate on the X secondary selection rather than the
primary selection and region."
:global t
+ :group 'mouse-sel
(if mouse-sel-mode
(progn
- (add-hook 'x-lost-selection-hooks 'mouse-sel-lost-selection-hook)
+ ;; If mouse-2 has never been done by the user, initialize the
+ ;; `event-kind' property to ensure that `follow-link' clicks
+ ;; are interpreted correctly.
+ (put 'mouse-2 'event-kind 'mouse-click)
+ (add-hook 'x-lost-selection-functions 'mouse-sel-lost-selection-hook)
(when mouse-sel-default-bindings
;; Save original bindings and replace them with new ones.
(setq mouse-sel-original-bindings
interprogram-paste-function nil))))
;; Restore original bindings
- (remove-hook 'x-lost-selection-hooks 'mouse-sel-lost-selection-hook)
+ (remove-hook 'x-lost-selection-functions 'mouse-sel-lost-selection-hook)
(dolist (binding mouse-sel-original-bindings)
(global-set-key (car binding) (cdr binding)))
+ ;; Restore the old values of these variables,
+ ;; only if they were actually saved previously.
(if mouse-sel-has-been-enabled
(setq interprogram-cut-function
mouse-sel-original-interprogram-cut-function
(overlay-put mouse-secondary-overlay 'face 'secondary-selection))
(defconst mouse-sel-selection-alist
- '((PRIMARY mouse-drag-overlay mouse-sel-primary-thing)
- (SECONDARY mouse-secondary-overlay mouse-sel-secondary-thing))
+ '((SECONDARY mouse-secondary-overlay mouse-sel-secondary-thing))
"Alist associating selections with variables.
Each element is of the form:
SELECTION-THING-SYMBOL = name of variable where the current selection
type for this selection should be stored.")
+(declare-function x-select-text "term/x-win" (text &optional push))
+
(defvar mouse-sel-set-selection-function
(if (eq mouse-sel-default-bindings 'interprogram-cut-paste)
'x-set-selection
This sets the selection as well as the cut buffer for the older applications,
unless `mouse-sel-default-bindings' is `interprogram-cut-paste'.")
+(declare-function x-cut-buffer-or-selection-value "term/x-win" ())
+
(defvar mouse-sel-get-selection-function
(lambda (selection)
(if (eq selection 'PRIMARY)
This should be bound to a down-mouse event."
(interactive "@e")
- (let (direction)
+ (let (select)
(unwind-protect
- (setq direction (mouse-select-internal 'PRIMARY event))
- (mouse-sel-primary-to-region direction))))
+ (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)))))
(defun mouse-select-secondary (event)
"Set secondary selection using the mouse.
(mouse-select-internal 'SECONDARY event))
(defun mouse-select-internal (selection event)
- "Set SELECTION using the mouse."
+ "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."
(mouse-sel-eval-at-event-end event
(let ((thing-symbol (mouse-sel-selection-thing selection))
(overlay (mouse-sel-selection-overlay selection)))
(car object-bounds) (cdr object-bounds)
(current-buffer)))
(move-overlay overlay (point) (point) (current-buffer)))))
- (mouse-extend-internal selection)))
+ (catch 'follow-link
+ (mouse-extend-internal selection event t))))
;;=== Extend ==============================================================
(save-window-excursion
(mouse-extend-internal 'SECONDARY event)))
-(defun mouse-extend-internal (selection &optional initial-event)
+(defun mouse-extend-internal (selection &optional initial-event no-process)
"Extend specified SELECTION using the mouse.
Track mouse-motion events, adjusting the SELECTION appropriately.
-Optional argument INITIAL-EVENT specifies an initial down-mouse event to
-process.
+Optional argument INITIAL-EVENT specifies an initial down-mouse event.
+Optional argument NO-PROCESS means not to process the initial
+event.
See documentation for mouse-select-internal for more details."
(mouse-sel-eval-at-event-end initial-event
;; Handle dragging
(track-mouse
- (while (if initial-event ; Use initial event
+ (while (if (and initial-event (not no-process))
+ ;; Use initial event
(prog1
(setq event initial-event)
(setq initial-event nil))
))) ; end track-mouse
+ ;; Detect follow-link events
+ (when (mouse-sel-follow-link-p initial-event event)
+ (throw 'follow-link event))
+
;; Finish up after dragging
(let ((overlay-start (overlay-start overlay))
(overlay-end (overlay-end overlay)))
))))
+(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 (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)))))))
+
;;=== Paste ===============================================================
(defun mouse-insert-selection (event arg)
(mouse-set-point event))
(when mouse-sel-get-selection-function
(push-mark (point) 'nomsg)
- (insert (or (funcall mouse-sel-get-selection-function selection) ""))))
+ (insert-for-yank
+ (or (funcall mouse-sel-get-selection-function selection) ""))))
;;=== Handle loss of selections ===========================================
(provide 'mouse-sel)
-;;; arch-tag: 86e6c73f-deaa-48d3-a24e-c565fda1f7d7
+;; arch-tag: 86e6c73f-deaa-48d3-a24e-c565fda1f7d7
;;; mouse-sel.el ends here
HCoop / bpt / emacs.git / blobdiff