X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/497cfacf276f20bd041c109e30ea4f99c3e43b17..18886d549ffc780c7b12166105f5cf00d0f24e8b:/lisp/mouse-sel.el diff --git a/lisp/mouse-sel.el b/lisp/mouse-sel.el index bbbb1e5459..a64dabaec8 100644 --- a/lisp/mouse-sel.el +++ b/lisp/mouse-sel.el @@ -1,6 +1,7 @@ ;;; 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 Free Software Foundation, Inc. ;; Author: Mike Williams ;; Keywords: mouse @@ -19,8 +20,8 @@ ;; 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. +;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +;; Boston, MA 02110-1301, USA. ;;; Commentary: @@ -196,6 +197,9 @@ If nil, point will always be placed at the beginning of the region." ;;=== User Command ======================================================== +(defvar mouse-sel-has-been-enabled nil + "Non-nil if Mouse Sel mode has been enabled at least once.") + (defvar mouse-sel-original-bindings nil) (defvar mouse-sel-original-interprogram-cut-function nil) (defvar mouse-sel-original-interprogram-paste-function nil) @@ -237,9 +241,10 @@ to the kill ring. Pressing mouse-1 or mouse-3 kills it. & 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) + (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 @@ -252,19 +257,23 @@ primary selection and region." (setq mouse-sel-original-interprogram-cut-function interprogram-cut-function mouse-sel-original-interprogram-paste-function - interprogram-paste-function) + interprogram-paste-function + mouse-sel-has-been-enabled t) (unless (eq mouse-sel-default-bindings 'interprogram-cut-paste) (setq interprogram-cut-function nil 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))) - (setq interprogram-cut-function - mouse-sel-original-interprogram-cut-function - interprogram-paste-function - mouse-sel-original-interprogram-paste-function))) + ;; 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 + interprogram-paste-function + mouse-sel-original-interprogram-paste-function)))) ;;=== Internal Variables/Constants ======================================== @@ -456,10 +465,12 @@ Clicking mouse-1 or mouse-3 kills the selected text. 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. @@ -478,7 +489,14 @@ This should be bound to a down-mouse event." (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))) @@ -492,7 +510,8 @@ This should be bound to a down-mouse event." (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 ============================================================== @@ -514,11 +533,12 @@ This should be bound to a down-mouse event." (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 @@ -555,7 +575,8 @@ See documentation for mouse-select-internal for more details." ;; 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)) @@ -634,6 +655,10 @@ See documentation for mouse-select-internal for more details." ))) ; 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))) @@ -670,6 +695,25 @@ See documentation for mouse-select-internal for more details." )))) +(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))))))) + ;;=== Paste =============================================================== (defun mouse-insert-selection (event arg) @@ -704,4 +748,5 @@ If `mouse-yank-at-point' is non-nil, insert at point instead." (provide 'mouse-sel) +;; arch-tag: 86e6c73f-deaa-48d3-a24e-c565fda1f7d7 ;;; mouse-sel.el ends here