| blob | abf62a978362012e6809b97c1a6119fabcdb46b4 |
1 ;;; mouse.el --- window system-independent mouse support
3 ;; Copyright (C) 1993, 94, 95, 1999, 2000, 01, 2004
4 ;; Free Software Foundation, Inc.
6 ;; Maintainer: FSF
7 ;; Keywords: hardware, mouse
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
26 ;;; Commentary:
28 ;; This package provides various useful commands (including help
29 ;; system access) through the mouse. All this code assumes that mouse
30 ;; interpretation has been abstracted into Emacs input events.
31 ;;
32 ;; The code is rather X-dependent.
34 ;;; Code:
36 ;;; Utility functions.
38 ;;; Indent track-mouse like progn.
42 "*If non-nil, mouse yank commands yank at point instead of at click."
47 "*If non-nil, mouse drag copies region to kill-ring."
51 \f
52 ;; Provide a mode-specific menu on a mouse button.
55 "Popup the given menu and call the selected option.
56 MENU can be a keymap, an easymenu-style menu or a list of keymaps as for
57 `x-popup-menu'.
58 POSITION can be a click event or ((XOFFSET YOFFSET) WINDOW) and defaults to
59 the current mouse position.
60 PREFIX is the prefix argument (if any) to pass to the command."
68 event cmd)
72 ;; The looping behavior was taken from lmenu's popup-menu-popup
74 ;; map could be a prefix key, in which case
75 ;; we need to get its function cell
76 ;; definition.
78 ;; Strangely x-popup-menu returns a list.
79 ;; mouse-major-mode-menu was using a weird:
80 ;; (key-binding (apply 'vector (append '(menu-bar) menu-prefix events)))
83 ;; We were given a list of keymaps. Search them all
84 ;; in sequence until a first binding is found.
86 binding)
92 binding)
93 ;; We were given a single keymap.
95 ;; Clear out echoing, which perhaps shows a prefix arg.
97 ;; Maybe try again but with the submap.
99 ;; If the user did not cancel by refusing to select,
100 ;; and if the result is a command, run it.
103 ;; `setup-specified-language-environment', for instance,
104 ;; expects this to be set from a menu keymap.
106 ;; mouse-major-mode-menu was using `command-execute' instead.
112 "Pop up a mode-specific menu of mouse commands.
113 Default to the Edit menu if the major mode doesn't define a menu."
114 ;; Switch to the window clicked on, because otherwise
115 ;; the mode's commands may not make sense.
117 ;; Let the mode update its menus first.
120 ;; returns the prefix we should use (after menu-bar).
121 ;; It is either nil or (SOME-SYMBOL).
123 ;; Keymap from which to inherit; may be null.
127 ;; Make a keymap in which our last command leads to a menu or
128 ;; default to the edit menu.
131 menu-bar-edit-menu))
132 result)
134 ;; Make our menu inherit from the desired keymap which we want
135 ;; to display as the menu now.
140 ;; Compute and cache the equivalent keys in MENU and all its submenus.
141 ;;;(defun mouse-major-mode-menu-compute-equiv-keys (menu)
142 ;;; (and (eq (car menu) 'keymap)
143 ;;; (x-popup-menu nil menu))
144 ;;; (while menu
145 ;;; (and (consp (car menu))
146 ;;; (consp (cdr (car menu)))
147 ;;; (let ((tail (cdr (car menu))))
148 ;;; (while (and (consp tail)
149 ;;; (not (eq (car tail) 'keymap)))
150 ;;; (setq tail (cdr tail)))
151 ;;; (if (consp tail)
152 ;;; (mouse-major-mode-menu-compute-equiv-keys tail))))
153 ;;; (setq menu (cdr menu))))
155 ;; Given a mode's menu bar keymap,
156 ;; if it defines exactly one menu bar menu,
157 ;; return just that menu.
158 ;; Otherwise return a menu for all of them.
162 submap)
170 menubar
175 "Pop up a menu equivalent to the menu bar for keyboard EVENT with PREFIX.
176 The contents are the items that would be in the menu bar whether or
177 not it is actually displayed."
183 ;; If a keymap doesn't have a prompt string (a lazy
184 ;; programmer didn't bother to provide one), create it and
185 ;; insert it into the keymap; each keymap gets its own
186 ;; prompt. This is required for non-toolkit versions to
187 ;; display non-empty menu pane names.
201 minor-mode)))
204 menu)))
217 ;; Supplying the list is faster than making a new map.
221 minor-mode-menus)
222 event prefix)))
225 "Popup a menu like either `mouse-major-mode-menu' or `mouse-popup-menubar'.
226 Use the former if the menu bar is showing, otherwise the latter."
231 \f
232 ;; Commands that operate on windows.
239 ;; Give temporary modes such as isearch a chance to turn off.
243 "Delete the window you click on.
244 Do nothing if the frame has just one window.
245 This command must be bound to a mouse click."
252 "Select the window clicked on; don't move point."
264 "Delete the window clicked on, and create a new frame displaying its buffer."
275 "Delete all windows except the one you click on."
280 "Select Emacs window mouse is on, then split it vertically in half.
281 The window is split at the line clicked on.
282 This command must be bound to a mouse click."
296 "Select Emacs window mouse is on, then split it horizontally in half.
297 The window is split at the column clicked on.
298 This command must be bound to a mouse click."
312 "Return the (or a) window directly above WINDOW.
313 That means one whose bottom edge is at the same height as WINDOW's top edge."
316 above-window)
320 top)
323 above-window))
326 "Move the bottom of WINDOW up or down by GROWTH lines.
327 Move it down if GROWTH is positive, or up if GROWTH is negative.
328 If this would make WINDOW too short,
329 shrink the window or windows above it to make room."
331 ;; EXCESS is the number of lines we need to take from windows above.
333 ;; This can recursively shrink windows all the way up.
342 "Move the top of WINDOW up or down by GROWTH lines.
343 Move it down if GROWTH is positive, or up if GROWTH is negative.
344 If this would make WINDOW too short, shrink the window or windows
345 above it to make room."
346 ;; Moving the top of WINDOW is actually moving the bottom of the
347 ;; window above.
353 "Change the height of a window by dragging on the mode or header line.
354 START-EVENT is the starting mouse-event of the drag action.
355 MODE-LINE-P non-nil means dragging a mode line; nil means a header line."
356 ;; Give temporary modes such as isearch a chance to turn off.
366 should-enlarge-minibuffer event mouse y top bot edges wconfig growth)
369 ;; enlarge-window only works on the selected window, so
370 ;; we must select the window where the start event originated.
371 ;; unwind-protect will restore the old selected window later.
374 ;; if this is the bottommost ordinary window, then to
375 ;; move its modeline the minibuffer must be enlarged.
378 mode-line-p
383 ;; loop reading events and sampling the position of
384 ;; the mouse.
389 ;; do nothing if
390 ;; - there is a switch-frame event.
391 ;; - the mouse isn't in the frame that we started in
392 ;; - the mouse isn't in any Emacs frame
393 ;; drag if
394 ;; - there is a mouse-movement event
395 ;; - there is a scroll-bar-movement event
396 ;; (same as mouse movement for our purposes)
397 ;; quit if
398 ;; - there is a keyboard event or some other unknown event
399 ;; unknown event.
404 nil)
412 nil)
415 nil)
423 ;; compute size change needed
429 ;; The window's top includes the header line!
433 ;; Check for an error case.
439 ;; grow/shrink minibuffer?
442 ;; yes. briefly select minibuffer so
443 ;; enlarge-window will affect the
444 ;; correct window.
446 ;; scale back shrinkage if it would
447 ;; make the minibuffer less than 1
448 ;; line tall.
451 growth)
456 ;; no. grow/shrink the selected window
457 ;(message "growth = %d" growth)
462 ;; if this window's growth caused another
463 ;; window to be deleted because it was too
464 ;; short, rescind the change.
465 ;;
466 ;; if size change caused space to be stolen
467 ;; from a window above this one, rescind the
468 ;; change, but only if we didn't grow/shrink
469 ;; the minibuffer. minibuffer size changes
470 ;; can cause all windows to shrink... no way
471 ;; around it.
475 mode-line-p
480 "Change the height of a window by dragging on the mode line."
485 "Change the height of a window by dragging on the header line.
486 Windows whose header-lines are at the top of the frame cannot be
487 resized by dragging their header-line."
489 ;; Changing the window's size by dragging its header-line when the
490 ;; header-line is at the top of the frame is somewhat strange,
491 ;; because the header-line doesn't move, so don't do it.
502 \f
504 "Change the width of a window by dragging on the vertical line."
506 ;; Give temporary modes such as isearch a chance to turn off.
514 event mouse x left right edges wconfig growth
528 ;; enlarge-window only works on the selected window, so
529 ;; we must select the window where the start event originated.
530 ;; unwind-protect will restore the old selected window later.
532 ;; loop reading events and sampling the position of
533 ;; the mouse.
537 ;; do nothing if
538 ;; - there is a switch-frame event.
539 ;; - the mouse isn't in the frame that we started in
540 ;; - the mouse isn't in any Emacs frame
541 ;; drag if
542 ;; - there is a mouse-movement event
543 ;; - there is a scroll-bar-movement event
544 ;; (same as mouse movement for our purposes)
545 ;; quit if
546 ;; - there is a keyboard event or some other unknown event
547 ;; unknown event.
551 nil)
559 nil)
561 nil)
564 ;; If the scroll bar is on the window's left,
565 ;; adjust the window on the left.
573 ;; scale back a move that would make the
574 ;; window too thin.
577 ;; compute size change needed
581 ;; if this window's growth caused another
582 ;; window to be deleted because it was too
583 ;; thin, rescind the change.
584 ;;
585 ;; if size change caused space to be stolen
586 ;; from a window to the left of this one,
587 ;; rescind the change.
591 \f
593 "Move point to the position clicked on with the mouse.
594 This should be bound to a mouse click event type."
597 ;; Use event-end in case called from mouse-drag-region.
598 ;; If EVENT is a click, event-end and event-start give same value.
606 "Return non-nil if there's an active region that was set with the mouse."
613 "Set the region to the text dragged over, and copy to kill ring.
614 This should be bound to a mouse drag event."
622 ;; If mark is highlighted, no need to bounce the cursor.
623 ;; On X, we highlight while dragging, thus once again no need to bounce.
631 ;; Don't set this-command to kill-region, so that a following
632 ;; C-w will not double the text in the kill ring.
633 ;; Ignore last-command so we don't append to a preceding kill.
640 ;; Set transient-mark-mode for a little while.
648 "*The pause between scroll steps caused by mouse drags, in seconds.
649 If you drag the mouse beyond the edge of a window, Emacs scrolls the
650 window to bring the text beyond that edge into view, with a delay of
651 this many seconds between scroll steps. Scrolling stops when you move
652 the mouse back into the window, or release the button.
653 This variable's value may be non-integral.
654 Setting this to zero causes Emacs to scroll as fast as it can."
659 "*The minimum number of lines scrolled by dragging mouse out of window.
660 Moving the mouse out the top or bottom edge of the window begins
661 scrolling repeatedly. The number of lines scrolled per repetition
662 is normally equal to the number of lines beyond the window edge that
663 the mouse has moved. However, it always scrolls at least the number
664 of lines specified by this variable."
669 "Scroll the window WINDOW, JUMP lines at a time, until new input arrives.
670 If OVERLAY is an overlay, let it stretch from START to the far edge of
671 the newly visible text.
672 Upon exit, point is at the far edge of the newly visible text."
688 ;; window-end doesn't reflect the window's new
689 ;; start position until the next redisplay.
695 ;; Now that we have scrolled WINDOW properly,
696 ;; put point back where it was for the redisplay
697 ;; so that we don't mess up the selected window.
704 ;; Create an overlay and immediately delete it, to get "overlay in no buffer".
714 "Set the region to the text that the mouse is dragged over.
715 Highlight the drag area as you move the mouse.
716 This must be bound to a button-down mouse event.
717 In Transient Mark mode, the highlighting remains as long as the mark
718 remains active. Otherwise, it remains until the next input event.
720 If the click is in the echo area, display the `*Messages*' buffer."
730 ;; Give temporary modes such as isearch a chance to turn off.
747 ;; Don't count the mode line.
753 ;; In case the down click is in the middle of some intangible text,
754 ;; use the end of that text, and put it in START-POINT.
763 ;; end-of-range is used only in the single-click case.
764 ;; It is the place where the drag has reached so far
765 ;; (but not outside the window where the drag started).
773 nil
780 ;; Are we moving within the original window?
783 ;; Go to START-POINT first, so that when we move to END-POINT,
784 ;; if it's in the middle of intangible text,
785 ;; point jumps in the direction away from START-POINT.
799 mouse-drag-overlay start-point)
800 ;; Without this, point tends to jump back to the starting
801 ;; position where the mouse button was pressed down.
805 mouse-drag-overlay start-point)
808 ;; In case we did not get a mouse-motion event
809 ;; for the final move of the mouse before a drag event
810 ;; pretend that we did get one.
816 ;; Go to START-POINT first, so that when we move to END-POINT,
817 ;; if it's in the middle of intangible text,
818 ;; point jumps in the direction away from START-POINT.
828 ;; Run the binding of the terminating up-event, if possible.
829 ;; In the case of a multiple click, it gives the wrong results,
830 ;; because it would fail to set up a region.
836 last-end-point))
837 ;; The end that comes from where we ended the drag.
838 ;; Point goes here.
843 ;; The end that comes from where we started the drag.
844 ;; Mark goes there.
848 region-termination))
849 last-command this-command)
852 ;; Don't let copy-region-as-kill set deactivate-mark.
858 ;; mouse-show-mark can call read-event,
859 ;; and that means the Emacs server could switch buffers
860 ;; under us. If that happened,
861 ;; avoid trying to use the region.
866 ;; Run the binding of the terminating up-event.
869 ;; Don't run the up-event handler if the
870 ;; window start changed in a redisplay after
871 ;; the mouse-set-point for the down-mouse
872 ;; event at the beginning of this function.
873 ;; When the window start has changed, the
874 ;; up-mouse event will contain a different
875 ;; position due to the new window contents,
876 ;; and point is set again.
879 start-window-start)))
883 \f
884 ;; Commands to handle xterm-style multiple clicks.
887 "Skip over word, over whitespace, or over identical punctuation.
888 If DIR is positive skip forward; if negative, skip backward."
892 ;; Here, we can't use skip-syntax-forward/backward because
893 ;; they don't pay attention to word-separating-categories,
894 ;; and thus they will skip over a true word boundary. So,
895 ;; we simularte the original behaviour by using
896 ;; forward-word.
918 "Return a list of region bounds based on START and END according to MODE.
919 If MODE is 0 then set point to (min START END), mark to (max START END).
920 If MODE is 1 then set point to start of word at (min START END),
921 mark to end of word at (max START END).
922 If MODE is 2 then do the same for lines."
926 end temp)))
991 \f
992 ;; Subroutine: set the mark where CLICK happened,
993 ;; but don't do anything else.
1010 ;; Use reverse, not nreverse, since event-modifiers
1011 ;; does not copy the list it returns.
1014 event)))
1018 t
1020 nil)))
1022 ;; Momentarily show where the mark is, if highlighting doesn't show it.
1025 "List of keys which shall cause the mouse region to be deleted.")
1027 (defun mouse-show-mark ()
1028 (if transient-mark-mode
1029 (delete-overlay mouse-drag-overlay)
1030 (let ((inhibit-quit t)
1031 (echo-keystrokes 0)
1032 event events key ignore
1033 x-lost-selection-hooks)
1034 (add-hook 'x-lost-selection-hooks
1035 (lambda (seltype)
1036 (if (eq seltype 'PRIMARY)
1037 (progn (setq ignore t)
1038 (throw 'mouse-show-mark t)))))
1039 (move-overlay mouse-drag-overlay (point) (mark t))
1040 (catch 'mouse-show-mark
1041 ;; In this loop, execute scroll bar and switch-frame events.
1042 ;; Also ignore down-events that are undefined.
1043 (while (progn (setq event (read-event))
1044 (setq events (append events (list event)))
1045 (setq key (apply 'vector events))
1046 (or (and (consp event)
1047 (eq (car event) 'switch-frame))
1048 (and (consp event)
1049 (eq (posn-point (event-end event))
1050 'vertical-scroll-bar))
1051 (and (memq 'down (event-modifiers event))
1052 (not (key-binding key))
1053 (not (mouse-undouble-last-event events))
1054 (not (member key mouse-region-delete-keys)))))
1055 (and (consp event)
1056 (or (eq (car event) 'switch-frame)
1057 (eq (posn-point (event-end event))
1058 'vertical-scroll-bar))
1059 (let ((keys (vector 'vertical-scroll-bar event)))
1060 (and (key-binding keys)
1061 (progn
1062 (call-interactively (key-binding keys)
1063 nil keys)
1064 (setq events nil)))))))
1065 ;; If we lost the selection, just turn off the highlighting.
1066 (if ignore
1067 nil
1068 ;; For certain special keys, delete the region.
1069 (if (member key mouse-region-delete-keys)
1070 (delete-region (overlay-start mouse-drag-overlay)
1071 (overlay-end mouse-drag-overlay))
1072 ;; Otherwise, unread the key so it gets executed normally.
1073 (setq unread-command-events
1074 (nconc events unread-command-events))))
1075 (setq quit-flag nil)
1076 (delete-overlay mouse-drag-overlay))))
1078 (defun mouse-set-mark (click)
1079 "Set mark at the position clicked on with the mouse.
1080 Display cursor at that position for a second.
1081 This must be bound to a mouse click."
1082 (interactive "e")
1083 (mouse-minibuffer-check click)
1084 (select-window (posn-window (event-start click)))
1085 ;; We don't use save-excursion because that preserves the mark too.
1086 (let ((point-save (point)))
1087 (unwind-protect
1088 (progn (mouse-set-point click)
1089 (push-mark nil t t)
1090 (or transient-mark-mode
1091 (sit-for 1)))
1092 (goto-char point-save))))
1094 (defun mouse-kill (click)
1095 "Kill the region between point and the mouse click.
1097 (interactive "e")
1098 (mouse-minibuffer-check click)
1099 (let* ((posn (event-start click))
1100 (click-posn (posn-point posn)))
1101 (select-window (posn-window posn))
1102 (if (numberp click-posn)
1103 (kill-region (min (point) click-posn)
1104 (max (point) click-posn)))))
1106 (defun mouse-yank-at-click (click arg)
1107 "Insert the last stretch of killed text at the position clicked on.
1108 Also move point to one end of the text thus inserted (normally the end),
1109 and set mark at the beginning.
1111 If `mouse-yank-at-point' is non-nil, insert at point
1112 regardless of where you click."
1114 ;; Give temporary modes such as isearch a chance to turn off.
1115 (run-hooks 'mouse-leave-buffer-hook)
1116 (or mouse-yank-at-point (mouse-set-point click))
1117 (setq this-command 'yank)
1118 (setq mouse-selection-click-count 0)
1119 (yank arg))
1121 (defun mouse-kill-ring-save (click)
1122 "Copy the region between point and the mouse click in the kill ring.
1124 (interactive "e")
1125 (mouse-set-mark-fast click)
1126 (let (this-command last-command)
1127 (kill-ring-save (point) (mark t)))
1128 (mouse-show-mark))
1130 ;;; This function used to delete the text between point and the mouse
1131 ;;; whenever it was equal to the front of the kill ring, but some
1132 ;;; people found that confusing.
1134 ;;; A list (TEXT START END), describing the text and position of the last
1135 ;;; invocation of mouse-save-then-kill.
1136 (defvar mouse-save-then-kill-posn nil)
1138 (defun mouse-save-then-kill-delete-region (beg end)
1139 ;; We must make our own undo boundaries
1140 ;; because they happen automatically only for the current buffer.
1141 (undo-boundary)
1142 (if (or (= beg end) (eq buffer-undo-list t))
1143 ;; If we have no undo list in this buffer,
1144 ;; just delete.
1145 (delete-region beg end)
1146 ;; Delete, but make the undo-list entry share with the kill ring.
1147 ;; First, delete just one char, so in case buffer is being modified
1148 ;; for the first time, the undo list records that fact.
1149 (let (before-change-functions after-change-functions)
1150 (delete-region beg
1151 (+ beg (if (> end beg) 1 -1))))
1152 (let ((buffer-undo-list buffer-undo-list))
1153 ;; Undo that deletion--but don't change the undo list!
1154 (let (before-change-functions after-change-functions)
1155 (primitive-undo 1 buffer-undo-list))
1156 ;; Now delete the rest of the specified region,
1157 ;; but don't record it.
1158 (setq buffer-undo-list t)
1159 (if (/= (length (car kill-ring)) (- (max end beg) (min end beg)))
1160 (error "Lossage in mouse-save-then-kill-delete-region"))
1161 (delete-region beg end))
1162 (let ((tail buffer-undo-list))
1163 ;; Search back in buffer-undo-list for the string
1164 ;; that came from deleting one character.
1165 (while (and tail (not (stringp (car (car tail)))))
1166 (setq tail (cdr tail)))
1167 ;; Replace it with an entry for the entire deleted text.
1168 (and tail
1169 (setcar tail (cons (car kill-ring) (min beg end))))))
1170 (undo-boundary))
1172 (defun mouse-save-then-kill (click)
1173 "Save text to point in kill ring; the second time, kill the text.
1174 If the text between point and the mouse is the same as what's
1175 at the front of the kill ring, this deletes the text.
1177 which prepares for a second click to delete the text.
1179 If you have selected words or lines, this command extends the
1180 selection through the word or line clicked on. If you do this
1181 again in a different position, it extends the selection again.
1182 If you do this twice in the same position, the selection is killed."
1183 (interactive "e")
1184 (let ((before-scroll
1185 (with-current-buffer (window-buffer (posn-window (event-start click)))
1186 point-before-scroll)))
1187 (mouse-minibuffer-check click)
1188 (let ((click-posn (posn-point (event-start click)))
1189 ;; Don't let a subsequent kill command append to this one:
1190 ;; prevent setting this-command to kill-region.
1191 (this-command this-command))
1192 (if (and (save-excursion
1193 (set-buffer (window-buffer (posn-window (event-start click))))
1194 (and (mark t) (> (mod mouse-selection-click-count 3) 0)
1195 ;; Don't be fooled by a recent click in some other buffer.
1196 (eq mouse-selection-click-count-buffer
1197 (current-buffer)))))
1198 (if (not (and (eq last-command 'mouse-save-then-kill)
1199 (equal click-posn
1200 (car (cdr-safe (cdr-safe mouse-save-then-kill-posn))))))
1201 ;; Find both ends of the object selected by this click.
1202 (let* ((range
1203 (mouse-start-end click-posn click-posn
1204 mouse-selection-click-count)))
1205 ;; Move whichever end is closer to the click.
1206 ;; That's what xterm does, and it seems reasonable.
1207 (if (< (abs (- click-posn (mark t)))
1208 (abs (- click-posn (point))))
1209 (set-mark (car range))
1210 (goto-char (nth 1 range)))
1211 ;; We have already put the old region in the kill ring.
1212 ;; Replace it with the extended region.
1213 ;; (It would be annoying to make a separate entry.)
1214 (kill-new (buffer-substring (point) (mark t)) t)
1215 (mouse-set-region-1)
1216 ;; Arrange for a repeated mouse-3 to kill this region.
1217 (setq mouse-save-then-kill-posn
1218 (list (car kill-ring) (point) click-posn))
1219 (mouse-show-mark))
1220 ;; If we click this button again without moving it,
1221 ;; that time kill.
1222 (mouse-save-then-kill-delete-region (mark) (point))
1223 (setq mouse-selection-click-count 0)
1224 (setq mouse-save-then-kill-posn nil))
1225 (if (and (eq last-command 'mouse-save-then-kill)
1226 mouse-save-then-kill-posn
1227 (eq (car mouse-save-then-kill-posn) (car kill-ring))
1228 (equal (cdr mouse-save-then-kill-posn) (list (point) click-posn)))
1229 ;; If this is the second time we've called
1230 ;; mouse-save-then-kill, delete the text from the buffer.
1231 (progn
1232 (mouse-save-then-kill-delete-region (point) (mark))
1233 ;; After we kill, another click counts as "the first time".
1234 (setq mouse-save-then-kill-posn nil))
1235 ;; This is not a repetition.
1236 ;; We are adjusting an old selection or creating a new one.
1237 (if (or (and (eq last-command 'mouse-save-then-kill)
1238 mouse-save-then-kill-posn)
1239 (and mark-active transient-mark-mode)
1240 (and (memq last-command
1241 '(mouse-drag-region mouse-set-region))
1242 (or mark-even-if-inactive
1243 (not transient-mark-mode))))
1244 ;; We have a selection or suitable region, so adjust it.
1245 (let* ((posn (event-start click))
1246 (new (posn-point posn)))
1247 (select-window (posn-window posn))
1248 (if (numberp new)
1249 (progn
1250 ;; Move whichever end of the region is closer to the click.
1251 ;; That is what xterm does, and it seems reasonable.
1252 (if (<= (abs (- new (point))) (abs (- new (mark t))))
1253 (goto-char new)
1254 (set-mark new))
1255 (setq deactivate-mark nil)))
1256 (kill-new (buffer-substring (point) (mark t)) t)
1257 (mouse-show-mark))
1258 ;; Set the mark where point is, then move where clicked.
1259 (mouse-set-mark-fast click)
1260 (if before-scroll
1261 (goto-char before-scroll))
1262 (exchange-point-and-mark)
1263 (kill-new (buffer-substring (point) (mark t)))
1264 (mouse-show-mark))
1265 (mouse-set-region-1)
1266 (setq mouse-save-then-kill-posn
1267 (list (car kill-ring) (point) click-posn)))))))
1268 \f
1269 (global-set-key [M-mouse-1] 'mouse-start-secondary)
1270 (global-set-key [M-drag-mouse-1] 'mouse-set-secondary)
1271 (global-set-key [M-down-mouse-1] 'mouse-drag-secondary)
1272 (global-set-key [M-mouse-3] 'mouse-secondary-save-then-kill)
1273 (global-set-key [M-mouse-2] 'mouse-yank-secondary)
1275 ;; An overlay which records the current secondary selection
1276 ;; or else is deleted when there is no secondary selection.
1277 ;; May be nil.
1278 (defvar mouse-secondary-overlay nil)
1280 (defvar mouse-secondary-click-count 0)
1282 ;; A marker which records the specified first end for a secondary selection.
1283 ;; May be nil.
1284 (defvar mouse-secondary-start nil)
1286 (defun mouse-start-secondary (click)
1287 "Set one end of the secondary selection to the position clicked on.
1289 and complete the secondary selection."
1290 (interactive "e")
1291 (mouse-minibuffer-check click)
1292 (let ((posn (event-start click)))
1293 (save-excursion
1294 (set-buffer (window-buffer (posn-window posn)))
1295 ;; Cancel any preexisting secondary selection.
1296 (if mouse-secondary-overlay
1297 (delete-overlay mouse-secondary-overlay))
1298 (if (numberp (posn-point posn))
1299 (progn
1300 (or mouse-secondary-start
1301 (setq mouse-secondary-start (make-marker)))
1302 (move-marker mouse-secondary-start (posn-point posn)))))))
1304 (defun mouse-set-secondary (click)
1305 "Set the secondary selection to the text that the mouse is dragged over.
1306 This must be bound to a mouse drag event."
1307 (interactive "e")
1308 (mouse-minibuffer-check click)
1309 (let ((posn (event-start click))
1310 beg
1311 (end (event-end click)))
1312 (save-excursion
1313 (set-buffer (window-buffer (posn-window posn)))
1314 (if (numberp (posn-point posn))
1315 (setq beg (posn-point posn)))
1316 (if mouse-secondary-overlay
1317 (move-overlay mouse-secondary-overlay beg (posn-point end))
1318 (setq mouse-secondary-overlay (make-overlay beg (posn-point end))))
1319 (overlay-put mouse-secondary-overlay 'face 'secondary-selection))))
1321 (defun mouse-drag-secondary (start-event)
1322 "Set the secondary selection to the text that the mouse is dragged over.
1323 Highlight the drag area as you move the mouse.
1324 This must be bound to a button-down mouse event.
1325 The function returns a non-nil value if it creates a secondary selection."
1326 (interactive "e")
1327 (mouse-minibuffer-check start-event)
1328 (let* ((echo-keystrokes 0)
1329 (start-posn (event-start start-event))
1330 (start-point (posn-point start-posn))
1331 (start-window (posn-window start-posn))
1332 (start-frame (window-frame start-window))
1333 (bounds (window-edges start-window))
1334 (top (nth 1 bounds))
1335 (bottom (if (window-minibuffer-p start-window)
1336 (nth 3 bounds)
1337 ;; Don't count the mode line.
1338 (1- (nth 3 bounds))))
1339 (click-count (1- (event-click-count start-event))))
1340 (save-excursion
1341 (set-buffer (window-buffer start-window))
1342 (setq mouse-secondary-click-count click-count)
1343 (or mouse-secondary-overlay
1344 (setq mouse-secondary-overlay
1345 (make-overlay (point) (point))))
1346 (overlay-put mouse-secondary-overlay 'face 'secondary-selection)
1347 (if (> (mod click-count 3) 0)
1348 ;; Double or triple press: make an initial selection
1349 ;; of one word or line.
1350 (let ((range (mouse-start-end start-point start-point click-count)))
1351 (set-marker mouse-secondary-start nil)
1352 (move-overlay mouse-secondary-overlay 1 1
1353 (window-buffer start-window))
1354 (move-overlay mouse-secondary-overlay (car range) (nth 1 range)
1355 (window-buffer start-window)))
1356 ;; Single-press: cancel any preexisting secondary selection.
1357 (or mouse-secondary-start
1358 (setq mouse-secondary-start (make-marker)))
1359 (set-marker mouse-secondary-start start-point)
1360 (delete-overlay mouse-secondary-overlay))
1361 (let (event end end-point)
1362 (track-mouse
1363 (while (progn
1364 (setq event (read-event))
1365 (or (mouse-movement-p event)
1366 (eq (car-safe event) 'switch-frame)))
1368 (if (eq (car-safe event) 'switch-frame)
1369 nil
1370 (setq end (event-end event)
1371 end-point (posn-point end))
1372 (cond
1373 ;; Are we moving within the original window?
1374 ((and (eq (posn-window end) start-window)
1375 (integer-or-marker-p end-point))
1376 (let ((range (mouse-start-end start-point end-point
1377 click-count)))
1378 (if (or (/= start-point end-point)
1379 (null (marker-position mouse-secondary-start)))
1380 (progn
1381 (set-marker mouse-secondary-start nil)
1382 (move-overlay mouse-secondary-overlay
1383 (car range) (nth 1 range))))))
1384 (t
1385 (let ((mouse-row (cdr (cdr (mouse-position)))))
1386 (cond
1387 ((null mouse-row))
1388 ((< mouse-row top)
1389 (mouse-scroll-subr start-window (- mouse-row top)
1390 mouse-secondary-overlay start-point))
1391 ((>= mouse-row bottom)
1392 (mouse-scroll-subr start-window (1+ (- mouse-row bottom))
1393 mouse-secondary-overlay start-point)))))))))
1395 (if (consp event)
1396 (if (marker-position mouse-secondary-start)
1397 (save-window-excursion
1398 (delete-overlay mouse-secondary-overlay)
1399 (x-set-selection 'SECONDARY nil)
1400 (select-window start-window)
1401 (save-excursion
1402 (goto-char mouse-secondary-start)
1403 (sit-for 1)
1404 nil))
1405 (x-set-selection
1406 'SECONDARY
1407 (buffer-substring (overlay-start mouse-secondary-overlay)
1408 (overlay-end mouse-secondary-overlay)))))))))
1410 (defun mouse-yank-secondary (click)
1411 "Insert the secondary selection at the position clicked on.
1412 Move point to the end of the inserted text.
1413 If `mouse-yank-at-point' is non-nil, insert at point
1414 regardless of where you click."
1415 (interactive "*e")
1416 ;; Give temporary modes such as isearch a chance to turn off.
1417 (run-hooks 'mouse-leave-buffer-hook)
1418 (or mouse-yank-at-point (mouse-set-point click))
1419 (insert (x-get-selection 'SECONDARY)))
1421 (defun mouse-kill-secondary ()
1422 "Kill the text in the secondary selection.
1423 This is intended more as a keyboard command than as a mouse command
1424 but it can work as either one.
1426 The current buffer (in case of keyboard use), or the buffer clicked on,
1427 must be the one that the secondary selection is in. This requirement
1428 is to prevent accidents."
1429 (interactive)
1430 (let* ((keys (this-command-keys))
1431 (click (elt keys (1- (length keys)))))
1432 (or (eq (overlay-buffer mouse-secondary-overlay)
1433 (if (listp click)
1434 (window-buffer (posn-window (event-start click)))
1435 (current-buffer)))
1436 (error "Select or click on the buffer where the secondary selection is")))
1437 (let (this-command)
1438 (save-excursion
1439 (set-buffer (overlay-buffer mouse-secondary-overlay))
1440 (kill-region (overlay-start mouse-secondary-overlay)
1441 (overlay-end mouse-secondary-overlay))))
1442 (delete-overlay mouse-secondary-overlay)
1443 ;;; (x-set-selection 'SECONDARY nil)
1444 (setq mouse-secondary-overlay nil))
1446 (defun mouse-secondary-save-then-kill (click)
1447 "Save text to point in kill ring; the second time, kill the text.
1450 you use this command matches the text at the front of the kill ring,
1451 this command deletes the text.
1453 which prepares for a second click with this command to delete the text.
1455 If you have already made a secondary selection in that buffer,
1456 this command extends or retracts the selection to where you click.
1457 If you do this again in a different position, it extends or retracts
1458 again. If you do this twice in the same position, it kills the selection."
1459 (interactive "e")
1460 (mouse-minibuffer-check click)
1461 (let ((posn (event-start click))
1462 (click-posn (posn-point (event-start click)))
1463 ;; Don't let a subsequent kill command append to this one:
1464 ;; prevent setting this-command to kill-region.
1465 (this-command this-command))
1466 (or (eq (window-buffer (posn-window posn))
1467 (or (and mouse-secondary-overlay
1468 (overlay-buffer mouse-secondary-overlay))
1469 (if mouse-secondary-start
1470 (marker-buffer mouse-secondary-start))))
1471 (error "Wrong buffer"))
1472 (save-excursion
1473 (set-buffer (window-buffer (posn-window posn)))
1474 (if (> (mod mouse-secondary-click-count 3) 0)
1475 (if (not (and (eq last-command 'mouse-secondary-save-then-kill)
1476 (equal click-posn
1477 (car (cdr-safe (cdr-safe mouse-save-then-kill-posn))))))
1478 ;; Find both ends of the object selected by this click.
1479 (let* ((range
1480 (mouse-start-end click-posn click-posn
1481 mouse-secondary-click-count)))
1482 ;; Move whichever end is closer to the click.
1483 ;; That's what xterm does, and it seems reasonable.
1484 (if (< (abs (- click-posn (overlay-start mouse-secondary-overlay)))
1485 (abs (- click-posn (overlay-end mouse-secondary-overlay))))
1486 (move-overlay mouse-secondary-overlay (car range)
1487 (overlay-end mouse-secondary-overlay))
1488 (move-overlay mouse-secondary-overlay
1489 (overlay-start mouse-secondary-overlay)
1490 (nth 1 range)))
1491 ;; We have already put the old region in the kill ring.
1492 ;; Replace it with the extended region.
1493 ;; (It would be annoying to make a separate entry.)
1494 (kill-new (buffer-substring
1495 (overlay-start mouse-secondary-overlay)
1496 (overlay-end mouse-secondary-overlay)) t)
1497 ;; Arrange for a repeated mouse-3 to kill this region.
1498 (setq mouse-save-then-kill-posn
1499 (list (car kill-ring) (point) click-posn)))
1500 ;; If we click this button again without moving it,
1501 ;; that time kill.
1502 (progn
1503 (mouse-save-then-kill-delete-region
1504 (overlay-start mouse-secondary-overlay)
1505 (overlay-end mouse-secondary-overlay))
1506 (setq mouse-save-then-kill-posn nil)
1507 (setq mouse-secondary-click-count 0)
1508 (delete-overlay mouse-secondary-overlay)))
1509 (if (and (eq last-command 'mouse-secondary-save-then-kill)
1510 mouse-save-then-kill-posn
1511 (eq (car mouse-save-then-kill-posn) (car kill-ring))
1512 (equal (cdr mouse-save-then-kill-posn) (list (point) click-posn)))
1513 ;; If this is the second time we've called
1514 ;; mouse-secondary-save-then-kill, delete the text from the buffer.
1515 (progn
1516 (mouse-save-then-kill-delete-region
1517 (overlay-start mouse-secondary-overlay)
1518 (overlay-end mouse-secondary-overlay))
1519 (setq mouse-save-then-kill-posn nil)
1520 (delete-overlay mouse-secondary-overlay))
1521 (if (overlay-start mouse-secondary-overlay)
1522 ;; We have a selection, so adjust it.
1523 (progn
1524 (if (numberp click-posn)
1525 (progn
1526 ;; Move whichever end of the region is closer to the click.
1527 ;; That is what xterm does, and it seems reasonable.
1528 (if (< (abs (- click-posn (overlay-start mouse-secondary-overlay)))
1529 (abs (- click-posn (overlay-end mouse-secondary-overlay))))
1530 (move-overlay mouse-secondary-overlay click-posn
1531 (overlay-end mouse-secondary-overlay))
1532 (move-overlay mouse-secondary-overlay
1533 (overlay-start mouse-secondary-overlay)
1534 click-posn))
1535 (setq deactivate-mark nil)))
1536 (if (eq last-command 'mouse-secondary-save-then-kill)
1537 ;; If the front of the kill ring comes from
1538 ;; an immediately previous use of this command,
1539 ;; replace it with the extended region.
1540 ;; (It would be annoying to make a separate entry.)
1541 (kill-new (buffer-substring
1542 (overlay-start mouse-secondary-overlay)
1543 (overlay-end mouse-secondary-overlay)) t)
1544 (let (deactivate-mark)
1545 (copy-region-as-kill (overlay-start mouse-secondary-overlay)
1546 (overlay-end mouse-secondary-overlay)))))
1547 (if mouse-secondary-start
1548 ;; All we have is one end of a selection,
1549 ;; so put the other end here.
1550 (let ((start (+ 0 mouse-secondary-start)))
1551 (kill-ring-save start click-posn)
1552 (if mouse-secondary-overlay
1553 (move-overlay mouse-secondary-overlay start click-posn)
1554 (setq mouse-secondary-overlay (make-overlay start click-posn)))
1555 (overlay-put mouse-secondary-overlay 'face 'secondary-selection))))
1556 (setq mouse-save-then-kill-posn
1557 (list (car kill-ring) (point) click-posn))))
1558 (if (overlay-buffer mouse-secondary-overlay)
1559 (x-set-selection 'SECONDARY
1560 (buffer-substring
1561 (overlay-start mouse-secondary-overlay)
1562 (overlay-end mouse-secondary-overlay)))))))
1563 \f
1564 (defcustom mouse-buffer-menu-maxlen 20
1565 "*Number of buffers in one pane (submenu) of the buffer menu.
1566 If we have lots of buffers, divide them into groups of
1567 `mouse-buffer-menu-maxlen' and make a pane (or submenu) for each one."
1568 :type 'integer
1569 :group 'mouse)
1571 (defcustom mouse-buffer-menu-mode-mult 4
1574 will split the buffer menu by the major modes (see
1575 `mouse-buffer-menu-mode-groups') or just by menu length.
1576 Set to 1 (or even 0!) if you want to group by major mode always, and to
1577 a large number if you prefer a mixed multitude. The default is 4."
1578 :type 'integer
1579 :group 'mouse
1580 :version "20.3")
1582 (defvar mouse-buffer-menu-mode-groups
1585 . "Mail/News")
1587 ("ObjC" . "C")
1588 ("Text" . "Text")
1589 ("Outline" . "Text")
1592 ("Lisp" . "Lisp"))
1594 Each element has the form (REGEXP . GROUPNAME).
1595 If the major mode's name string matches REGEXP, use GROUPNAME instead.")
1597 (defun mouse-buffer-menu (event)
1598 "Pop up a menu of buffers for selection with the mouse.
1599 This switches buffers in the window that you clicked on,
1600 and selects that window."
1601 (interactive "e")
1602 (mouse-minibuffer-check event)
1603 (let ((buffers (buffer-list)) alist menu split-by-major-mode sum-of-squares)
1604 ;; Make an alist of elements that look like (MENU-ITEM . BUFFER).
1605 (let ((tail buffers))
1606 (while tail
1607 ;; Divide all buffers into buckets for various major modes.
1608 ;; Each bucket looks like (MODE NAMESTRING BUFFERS...).
1609 (with-current-buffer (car tail)
1610 (let* ((adjusted-major-mode major-mode) elt)
1611 (let ((tail mouse-buffer-menu-mode-groups))
1612 (while tail
1613 (if (string-match (car (car tail)) mode-name)
1614 (setq adjusted-major-mode (cdr (car tail))))
1615 (setq tail (cdr tail))))
1616 (setq elt (assoc adjusted-major-mode split-by-major-mode))
1617 (if (null elt)
1618 (setq elt (list adjusted-major-mode
1619 (if (stringp adjusted-major-mode)
1620 adjusted-major-mode
1621 mode-name))
1622 split-by-major-mode (cons elt split-by-major-mode)))
1623 (or (memq (car tail) (cdr (cdr elt)))
1624 (setcdr (cdr elt) (cons (car tail) (cdr (cdr elt)))))))
1625 (setq tail (cdr tail))))
1626 ;; Compute the sum of squares of sizes of the major-mode buckets.
1627 (let ((tail split-by-major-mode))
1628 (setq sum-of-squares 0)
1629 (while tail
1630 (setq sum-of-squares
1631 (+ sum-of-squares
1632 (let ((len (length (cdr (cdr (car tail)))))) (* len len))))
1633 (setq tail (cdr tail))))
1634 (if (< (* sum-of-squares mouse-buffer-menu-mode-mult)
1635 (* (length buffers) (length buffers)))
1636 ;; Subdividing by major modes really helps, so let's do it.
1637 (let (subdivided-menus (buffers-left (length buffers)))
1638 ;; Sort the list to put the most popular major modes first.
1639 (setq split-by-major-mode
1640 (sort split-by-major-mode
1641 (function (lambda (elt1 elt2)
1642 (> (length elt1) (length elt2))))))
1643 ;; Make a separate submenu for each major mode
1644 ;; that has more than one buffer,
1645 ;; unless all the remaining buffers are less than 1/10 of them.
1646 (while (and split-by-major-mode
1647 (and (> (length (car split-by-major-mode)) 3)
1648 (> (* buffers-left 10) (length buffers))))
1649 (let ((this-mode-list (mouse-buffer-menu-alist
1650 (cdr (cdr (car split-by-major-mode))))))
1651 (and this-mode-list
1652 (setq subdivided-menus
1653 (cons (cons
1654 (nth 1 (car split-by-major-mode))
1655 this-mode-list)
1656 subdivided-menus))))
1657 (setq buffers-left
1658 (- buffers-left (length (cdr (car split-by-major-mode)))))
1659 (setq split-by-major-mode (cdr split-by-major-mode)))
1660 ;; If any major modes are left over,
1661 ;; make a single submenu for them.
1662 (if split-by-major-mode
1663 (let ((others-list
1664 (mouse-buffer-menu-alist
1665 ;; we don't need split-by-major-mode any more,
1666 ;; so we can ditch it with nconc.
1667 (apply 'nconc (mapcar 'cddr split-by-major-mode)))))
1668 (and others-list
1669 (setq subdivided-menus
1670 (cons (cons "Others" others-list)
1671 subdivided-menus)))))
1672 (setq menu (cons "Buffer Menu" (nreverse subdivided-menus))))
1673 (progn
1674 (setq alist (mouse-buffer-menu-alist buffers))
1675 (setq menu (cons "Buffer Menu"
1676 (mouse-buffer-menu-split "Select Buffer" alist)))))
1677 (let ((buf (x-popup-menu event menu))
1678 (window (posn-window (event-start event))))
1679 (when buf
1680 (select-window
1681 (if (framep window) (frame-selected-window window)
1682 window))
1683 (switch-to-buffer buf)))))
1685 (defun mouse-buffer-menu-alist (buffers)
1686 (let (tail
1687 (maxlen 0)
1688 head)
1689 (setq buffers
1690 (sort buffers
1691 (function (lambda (elt1 elt2)
1692 (string< (buffer-name elt1) (buffer-name elt2))))))
1693 (setq tail buffers)
1694 (while tail
1695 (or (eq ?\ (aref (buffer-name (car tail)) 0))
1696 (setq maxlen
1697 (max maxlen
1698 (length (buffer-name (car tail))))))
1699 (setq tail (cdr tail)))
1700 (setq tail buffers)
1701 (while tail
1702 (let ((elt (car tail)))
1703 (if (/= (aref (buffer-name elt) 0) ?\ )
1704 (setq head
1705 (cons
1706 (cons
1707 (format
1708 (format "%%%ds %%s%%s %%s" maxlen)
1709 (buffer-name elt)
1710 (if (buffer-modified-p elt) "*" " ")
1711 (save-excursion
1712 (set-buffer elt)
1713 (if buffer-read-only "%" " "))
1714 (or (buffer-file-name elt)
1715 (save-excursion
1716 (set-buffer elt)
1717 (if list-buffers-directory
1718 (expand-file-name
1719 list-buffers-directory)))
1720 ""))
1721 elt)
1722 head))))
1723 (setq tail (cdr tail)))
1724 ;; Compensate for the reversal that the above loop does.
1725 (nreverse head)))
1727 (defun mouse-buffer-menu-split (title alist)
1728 ;; If we have lots of buffers, divide them into groups of 20
1729 ;; and make a pane (or submenu) for each one.
1730 (if (> (length alist) (/ (* mouse-buffer-menu-maxlen 3) 2))
1731 (let ((alist alist) sublists next
1732 (i 1))
1733 (while alist
1734 ;; Pull off the next mouse-buffer-menu-maxlen buffers
1735 ;; and make them the next element of sublist.
1736 (setq next (nthcdr mouse-buffer-menu-maxlen alist))
1737 (if next
1738 (setcdr (nthcdr (1- mouse-buffer-menu-maxlen) alist)
1739 nil))
1740 (setq sublists (cons (cons (format "Buffers %d" i) alist)
1741 sublists))
1742 (setq i (1+ i))
1743 (setq alist next))
1744 (nreverse sublists))
1745 ;; Few buffers--put them all in one pane.
1746 (list (cons title alist))))
1747 \f
1748 ;;; These need to be rewritten for the new scroll bar implementation.
1750 ;;;!! ;; Commands for the scroll bar.
1751 ;;;!!
1752 ;;;!! (defun mouse-scroll-down (click)
1753 ;;;!! (interactive "@e")
1754 ;;;!! (scroll-down (1+ (cdr (mouse-coords click)))))
1755 ;;;!!
1756 ;;;!! (defun mouse-scroll-up (click)
1757 ;;;!! (interactive "@e")
1758 ;;;!! (scroll-up (1+ (cdr (mouse-coords click)))))
1759 ;;;!!
1760 ;;;!! (defun mouse-scroll-down-full ()
1761 ;;;!! (interactive "@")
1762 ;;;!! (scroll-down nil))
1763 ;;;!!
1764 ;;;!! (defun mouse-scroll-up-full ()
1765 ;;;!! (interactive "@")
1766 ;;;!! (scroll-up nil))
1767 ;;;!!
1768 ;;;!! (defun mouse-scroll-move-cursor (click)
1769 ;;;!! (interactive "@e")
1770 ;;;!! (move-to-window-line (1+ (cdr (mouse-coords click)))))
1771 ;;;!!
1772 ;;;!! (defun mouse-scroll-absolute (event)
1773 ;;;!! (interactive "@e")
1774 ;;;!! (let* ((pos (car event))
1775 ;;;!! (position (car pos))
1776 ;;;!! (length (car (cdr pos))))
1777 ;;;!! (if (<= length 0) (setq length 1))
1778 ;;;!! (let* ((scale-factor (max 1 (/ length (/ 8000000 (buffer-size)))))
1779 ;;;!! (newpos (* (/ (* (/ (buffer-size) scale-factor)
1780 ;;;!! position)
1781 ;;;!! length)
1782 ;;;!! scale-factor)))
1783 ;;;!! (goto-char newpos)
1784 ;;;!! (recenter '(4)))))
1785 ;;;!!
1786 ;;;!! (defun mouse-scroll-left (click)
1787 ;;;!! (interactive "@e")
1788 ;;;!! (scroll-left (1+ (car (mouse-coords click)))))
1789 ;;;!!
1790 ;;;!! (defun mouse-scroll-right (click)
1791 ;;;!! (interactive "@e")
1792 ;;;!! (scroll-right (1+ (car (mouse-coords click)))))
1793 ;;;!!
1794 ;;;!! (defun mouse-scroll-left-full ()
1795 ;;;!! (interactive "@")
1796 ;;;!! (scroll-left nil))
1797 ;;;!!
1798 ;;;!! (defun mouse-scroll-right-full ()
1799 ;;;!! (interactive "@")
1800 ;;;!! (scroll-right nil))
1801 ;;;!!
1802 ;;;!! (defun mouse-scroll-move-cursor-horizontally (click)
1803 ;;;!! (interactive "@e")
1804 ;;;!! (move-to-column (1+ (car (mouse-coords click)))))
1805 ;;;!!
1806 ;;;!! (defun mouse-scroll-absolute-horizontally (event)
1807 ;;;!! (interactive "@e")
1808 ;;;!! (let* ((pos (car event))
1809 ;;;!! (position (car pos))
1810 ;;;!! (length (car (cdr pos))))
1811 ;;;!! (set-window-hscroll (selected-window) 33)))
1812 ;;;!!
1813 ;;;!! (global-set-key [scroll-bar mouse-1] 'mouse-scroll-up)
1814 ;;;!! (global-set-key [scroll-bar mouse-2] 'mouse-scroll-absolute)
1815 ;;;!! (global-set-key [scroll-bar mouse-3] 'mouse-scroll-down)
1816 ;;;!!
1817 ;;;!! (global-set-key [vertical-slider mouse-1] 'mouse-scroll-move-cursor)
1818 ;;;!! (global-set-key [vertical-slider mouse-2] 'mouse-scroll-move-cursor)
1819 ;;;!! (global-set-key [vertical-slider mouse-3] 'mouse-scroll-move-cursor)
1820 ;;;!!
1821 ;;;!! (global-set-key [thumbup mouse-1] 'mouse-scroll-up-full)
1822 ;;;!! (global-set-key [thumbup mouse-2] 'mouse-scroll-up-full)
1823 ;;;!! (global-set-key [thumbup mouse-3] 'mouse-scroll-up-full)
1824 ;;;!!
1825 ;;;!! (global-set-key [thumbdown mouse-1] 'mouse-scroll-down-full)
1826 ;;;!! (global-set-key [thumbdown mouse-2] 'mouse-scroll-down-full)
1827 ;;;!! (global-set-key [thumbdown mouse-3] 'mouse-scroll-down-full)
1828 ;;;!!
1829 ;;;!! (global-set-key [horizontal-scroll-bar mouse-1] 'mouse-scroll-left)
1830 ;;;!! (global-set-key [horizontal-scroll-bar mouse-2]
1831 ;;;!! 'mouse-scroll-absolute-horizontally)
1832 ;;;!! (global-set-key [horizontal-scroll-bar mouse-3] 'mouse-scroll-right)
1833 ;;;!!
1834 ;;;!! (global-set-key [horizontal-slider mouse-1]
1835 ;;;!! 'mouse-scroll-move-cursor-horizontally)
1836 ;;;!! (global-set-key [horizontal-slider mouse-2]
1837 ;;;!! 'mouse-scroll-move-cursor-horizontally)
1838 ;;;!! (global-set-key [horizontal-slider mouse-3]
1839 ;;;!! 'mouse-scroll-move-cursor-horizontally)
1840 ;;;!!
1841 ;;;!! (global-set-key [thumbleft mouse-1] 'mouse-scroll-left-full)
1842 ;;;!! (global-set-key [thumbleft mouse-2] 'mouse-scroll-left-full)
1843 ;;;!! (global-set-key [thumbleft mouse-3] 'mouse-scroll-left-full)
1844 ;;;!!
1845 ;;;!! (global-set-key [thumbright mouse-1] 'mouse-scroll-right-full)
1846 ;;;!! (global-set-key [thumbright mouse-2] 'mouse-scroll-right-full)
1847 ;;;!! (global-set-key [thumbright mouse-3] 'mouse-scroll-right-full)
1848 ;;;!!
1849 ;;;!! (global-set-key [horizontal-scroll-bar S-mouse-2]
1850 ;;;!! 'mouse-split-window-horizontally)
1851 ;;;!! (global-set-key [mode-line S-mouse-2]
1852 ;;;!! 'mouse-split-window-horizontally)
1853 ;;;!! (global-set-key [vertical-scroll-bar S-mouse-2]
1854 ;;;!! 'mouse-split-window)
1855 \f
1856 ;;;!! ;;;;
1857 ;;;!! ;;;; Here are experimental things being tested. Mouse events
1858 ;;;!! ;;;; are of the form:
1859 ;;;!! ;;;; ((x y) window screen-part key-sequence timestamp)
1860 ;;;!! ;;
1861 ;;;!! ;;;;
1862 ;;;!! ;;;; Dynamically track mouse coordinates
1863 ;;;!! ;;;;
1864 ;;;!! ;;
1865 ;;;!! ;;(defun track-mouse (event)
1866 ;;;!! ;; "Track the coordinates, absolute and relative, of the mouse."
1867 ;;;!! ;; (interactive "@e")
1868 ;;;!! ;; (while mouse-grabbed
1869 ;;;!! ;; (let* ((pos (read-mouse-position (selected-screen)))
1870 ;;;!! ;; (abs-x (car pos))
1871 ;;;!! ;; (abs-y (cdr pos))
1872 ;;;!! ;; (relative-coordinate (coordinates-in-window-p
1873 ;;;!! ;; (list (car pos) (cdr pos))
1874 ;;;!! ;; (selected-window))))
1875 ;;;!! ;; (if (consp relative-coordinate)
1876 ;;;!! ;; (message "mouse: [%d %d], (%d %d)" abs-x abs-y
1877 ;;;!! ;; (car relative-coordinate)
1878 ;;;!! ;; (car (cdr relative-coordinate)))
1879 ;;;!! ;; (message "mouse: [%d %d]" abs-x abs-y)))))
1880 ;;;!!
1881 ;;;!! ;;
1882 ;;;!! ;; Dynamically put a box around the line indicated by point
1883 ;;;!! ;;
1884 ;;;!! ;;
1885 ;;;!! ;;(require 'backquote)
1886 ;;;!! ;;
1887 ;;;!! ;;(defun mouse-select-buffer-line (event)
1888 ;;;!! ;; (interactive "@e")
1889 ;;;!! ;; (let ((relative-coordinate
1890 ;;;!! ;; (coordinates-in-window-p (car event) (selected-window)))
1891 ;;;!! ;; (abs-y (car (cdr (car event)))))
1892 ;;;!! ;; (if (consp relative-coordinate)
1893 ;;;!! ;; (progn
1894 ;;;!! ;; (save-excursion
1895 ;;;!! ;; (move-to-window-line (car (cdr relative-coordinate)))
1896 ;;;!! ;; (x-draw-rectangle
1897 ;;;!! ;; (selected-screen)
1898 ;;;!! ;; abs-y 0
1899 ;;;!! ;; (save-excursion
1900 ;;;!! ;; (move-to-window-line (car (cdr relative-coordinate)))
1901 ;;;!! ;; (end-of-line)
1902 ;;;!! ;; (push-mark nil t)
1903 ;;;!! ;; (beginning-of-line)
1904 ;;;!! ;; (- (region-end) (region-beginning))) 1))
1905 ;;;!! ;; (sit-for 1)
1906 ;;;!! ;; (x-erase-rectangle (selected-screen))))))
1907 ;;;!! ;;
1908 ;;;!! ;;(defvar last-line-drawn nil)
1911 ;;;!! ;;
1912 ;;;!! ;;(defun mouse-boxing (event)
1913 ;;;!! ;; (interactive "@e")
1914 ;;;!! ;; (save-excursion
1915 ;;;!! ;; (let ((screen (selected-screen)))
1916 ;;;!! ;; (while (= (x-mouse-events) 0)
1917 ;;;!! ;; (let* ((pos (read-mouse-position screen))
1918 ;;;!! ;; (abs-x (car pos))
1919 ;;;!! ;; (abs-y (cdr pos))
1920 ;;;!! ;; (relative-coordinate
1921 ;;;!! ;; (coordinates-in-window-p `(,abs-x ,abs-y)
1922 ;;;!! ;; (selected-window)))
1923 ;;;!! ;; (begin-reg nil)
1924 ;;;!! ;; (end-reg nil)
1925 ;;;!! ;; (end-column nil)
1926 ;;;!! ;; (begin-column nil))
1927 ;;;!! ;; (if (and (consp relative-coordinate)
1928 ;;;!! ;; (or (not last-line-drawn)
1929 ;;;!! ;; (not (= last-line-drawn abs-y))))
1930 ;;;!! ;; (progn
1931 ;;;!! ;; (move-to-window-line (car (cdr relative-coordinate)))
1932 ;;;!! ;; (if (= (following-char) 10)
1933 ;;;!! ;; ()
1934 ;;;!! ;; (progn
1935 ;;;!! ;; (setq begin-reg (1- (re-search-forward end-delim)))
1936 ;;;!! ;; (setq begin-column (1- (current-column)))
1937 ;;;!! ;; (end-of-line)
1938 ;;;!! ;; (setq end-reg (1+ (re-search-backward begin-delim)))
1939 ;;;!! ;; (setq end-column (1+ (current-column)))
1940 ;;;!! ;; (message "%s" (buffer-substring begin-reg end-reg))
1941 ;;;!! ;; (x-draw-rectangle screen
1942 ;;;!! ;; (setq last-line-drawn abs-y)
1943 ;;;!! ;; begin-column
1944 ;;;!! ;; (- end-column begin-column) 1))))))))))
1945 ;;;!! ;;
1946 ;;;!! ;;(defun mouse-erase-box ()
1947 ;;;!! ;; (interactive)
1948 ;;;!! ;; (if last-line-drawn
1949 ;;;!! ;; (progn
1950 ;;;!! ;; (x-erase-rectangle (selected-screen))
1951 ;;;!! ;; (setq last-line-drawn nil))))
1952 ;;;!!
1953 ;;;!! ;;; (defun test-x-rectangle ()
1954 ;;;!! ;;; (use-local-mouse-map (setq rectangle-test-map (make-sparse-keymap)))
1955 ;;;!! ;;; (define-key rectangle-test-map mouse-motion-button-left 'mouse-boxing)
1956 ;;;!! ;;; (define-key rectangle-test-map mouse-button-left-up 'mouse-erase-box))
1957 ;;;!!
1958 ;;;!! ;;
1959 ;;;!! ;; Here is how to do double clicking in lisp. About to change.
1960 ;;;!! ;;
1961 ;;;!!
1962 ;;;!! (defvar double-start nil)
1963 ;;;!! (defconst double-click-interval 300
1964 ;;;!! "Max ticks between clicks")
1965 ;;;!!
1966 ;;;!! (defun double-down (event)
1967 ;;;!! (interactive "@e")
1968 ;;;!! (if double-start
1969 ;;;!! (let ((interval (- (nth 4 event) double-start)))
1970 ;;;!! (if (< interval double-click-interval)
1971 ;;;!! (progn
1972 ;;;!! (backward-up-list 1)
1973 ;;;!! ;; (message "Interval %d" interval)
1974 ;;;!! (sleep-for 1)))
1975 ;;;!! (setq double-start nil))
1976 ;;;!! (setq double-start (nth 4 event))))
1977 ;;;!!
1978 ;;;!! (defun double-up (event)
1979 ;;;!! (interactive "@e")
1980 ;;;!! (and double-start
1981 ;;;!! (> (- (nth 4 event ) double-start) double-click-interval)
1982 ;;;!! (setq double-start nil)))
1983 ;;;!!
1984 ;;;!! ;;; (defun x-test-doubleclick ()
1985 ;;;!! ;;; (use-local-mouse-map (setq doubleclick-test-map (make-sparse-keymap)))
1986 ;;;!! ;;; (define-key doubleclick-test-map mouse-button-left 'double-down)
1987 ;;;!! ;;; (define-key doubleclick-test-map mouse-button-left-up 'double-up))
1988 ;;;!!
1989 ;;;!! ;;
1990 ;;;!! ;; This scrolls while button is depressed. Use preferable in scroll bar.
1991 ;;;!! ;;
1992 ;;;!!
1993 ;;;!! (defvar scrolled-lines 0)
1994 ;;;!! (defconst scroll-speed 1)
1995 ;;;!!
1996 ;;;!! (defun incr-scroll-down (event)
1997 ;;;!! (interactive "@e")
1998 ;;;!! (setq scrolled-lines 0)
1999 ;;;!! (incremental-scroll scroll-speed))
2000 ;;;!!
2001 ;;;!! (defun incr-scroll-up (event)
2002 ;;;!! (interactive "@e")
2003 ;;;!! (setq scrolled-lines 0)
2004 ;;;!! (incremental-scroll (- scroll-speed)))
2005 ;;;!!
2006 ;;;!! (defun incremental-scroll (n)
2007 ;;;!! (while (= (x-mouse-events) 0)
2008 ;;;!! (setq scrolled-lines (1+ (* scroll-speed scrolled-lines)))
2009 ;;;!! (scroll-down n)
2010 ;;;!! (sit-for 300 t)))
2011 ;;;!!
2012 ;;;!! (defun incr-scroll-stop (event)
2013 ;;;!! (interactive "@e")
2014 ;;;!! (message "Scrolled %d lines" scrolled-lines)
2015 ;;;!! (setq scrolled-lines 0)
2016 ;;;!! (sleep-for 1))
2017 ;;;!!
2018 ;;;!! ;;; (defun x-testing-scroll ()
2019 ;;;!! ;;; (let ((scrolling-map (function mouse-vertical-scroll-bar-prefix)))
2020 ;;;!! ;;; (define-key scrolling-map mouse-button-left 'incr-scroll-down)
2021 ;;;!! ;;; (define-key scrolling-map mouse-button-right 'incr-scroll-up)
2022 ;;;!! ;;; (define-key scrolling-map mouse-button-left-up 'incr-scroll-stop)
2023 ;;;!! ;;; (define-key scrolling-map mouse-button-right-up 'incr-scroll-stop)))
2024 ;;;!!
2025 ;;;!! ;;
2026 ;;;!! ;; Some playthings suitable for picture mode? They need work.
2027 ;;;!! ;;
2028 ;;;!!
2029 ;;;!! (defun mouse-kill-rectangle (event)
2030 ;;;!! "Kill the rectangle between point and the mouse cursor."
2031 ;;;!! (interactive "@e")
2032 ;;;!! (let ((point-save (point)))
2033 ;;;!! (save-excursion
2034 ;;;!! (mouse-set-point event)
2035 ;;;!! (push-mark nil t)
2036 ;;;!! (if (> point-save (point))
2037 ;;;!! (kill-rectangle (point) point-save)
2038 ;;;!! (kill-rectangle point-save (point))))))
2039 ;;;!!
2040 ;;;!! (defun mouse-open-rectangle (event)
2041 ;;;!! "Kill the rectangle between point and the mouse cursor."
2042 ;;;!! (interactive "@e")
2043 ;;;!! (let ((point-save (point)))
2044 ;;;!! (save-excursion
2045 ;;;!! (mouse-set-point event)
2046 ;;;!! (push-mark nil t)
2047 ;;;!! (if (> point-save (point))
2048 ;;;!! (open-rectangle (point) point-save)
2049 ;;;!! (open-rectangle point-save (point))))))
2050 ;;;!!
2051 ;;;!! ;; Must be a better way to do this.
2052 ;;;!!
2053 ;;;!! (defun mouse-multiple-insert (n char)
2054 ;;;!! (while (> n 0)
2055 ;;;!! (insert char)
2056 ;;;!! (setq n (1- n))))
2057 ;;;!!
2058 ;;;!! ;; What this could do is not finalize until button was released.
2059 ;;;!!
2060 ;;;!! (defun mouse-move-text (event)
2061 ;;;!! "Move text from point to cursor position, inserting spaces."
2062 ;;;!! (interactive "@e")
2063 ;;;!! (let* ((relative-coordinate
2064 ;;;!! (coordinates-in-window-p (car event) (selected-window))))
2065 ;;;!! (if (consp relative-coordinate)
2066 ;;;!! (cond ((> (current-column) (car relative-coordinate))
2067 ;;;!! (delete-char
2068 ;;;!! (- (car relative-coordinate) (current-column))))
2069 ;;;!! ((< (current-column) (car relative-coordinate))
2070 ;;;!! (mouse-multiple-insert
2071 ;;;!! (- (car relative-coordinate) (current-column)) " "))
2072 ;;;!! ((= (current-column) (car relative-coordinate)) (ding))))))
2073 \f
2074 ;; Choose a completion with the mouse.
2076 (defun mouse-choose-completion (event)
2077 "Click on an alternative in the `*Completions*' buffer to choose it."
2078 (interactive "e")
2079 ;; Give temporary modes such as isearch a chance to turn off.
2080 (run-hooks 'mouse-leave-buffer-hook)
2081 (let ((buffer (window-buffer))
2082 choice
2083 base-size)
2084 (save-excursion
2085 (set-buffer (window-buffer (posn-window (event-start event))))
2086 (if completion-reference-buffer
2087 (setq buffer completion-reference-buffer))
2088 (setq base-size completion-base-size)
2089 (save-excursion
2090 (goto-char (posn-point (event-start event)))
2091 (let (beg end)
2092 (if (and (not (eobp)) (get-text-property (point) 'mouse-face))
2093 (setq end (point) beg (1+ (point))))
2094 (if (null beg)
2095 (error "No completion here"))
2096 (setq beg (previous-single-property-change beg 'mouse-face))
2097 (setq end (or (next-single-property-change end 'mouse-face)
2098 (point-max)))
2099 (setq choice (buffer-substring beg end)))))
2100 (let ((owindow (selected-window)))
2101 (select-window (posn-window (event-start event)))
2102 (if (and (one-window-p t 'selected-frame)
2103 (window-dedicated-p (selected-window)))
2104 ;; This is a special buffer's frame
2105 (iconify-frame (selected-frame))
2106 (or (window-dedicated-p (selected-window))
2107 (bury-buffer)))
2108 (select-window owindow))
2109 (choose-completion-string choice buffer base-size)))
2110 \f
2111 ;; Font selection.
2113 (defun font-menu-add-default ()
2114 (let* ((default (cdr (assq 'font (frame-parameters (selected-frame)))))
2115 (font-alist x-fixed-font-alist)
2116 (elt (or (assoc "Misc" font-alist) (nth 1 font-alist))))
2117 (if (assoc "Default" elt)
2118 (delete (assoc "Default" elt) elt))
2119 (setcdr elt
2120 (cons (list "Default" default)
2121 (cdr elt)))))
2123 (defvar x-fixed-font-alist
2124 '("Font menu"
2125 ("Misc"
2126 ;; For these, we specify the pixel height and width.
2127 ("fixed" "fixed")
2128 ("6x10" "-misc-fixed-medium-r-normal--10-*-*-*-c-60-iso8859-1" "6x10")
2129 ("6x12"
2130 "-misc-fixed-medium-r-semicondensed--12-*-*-*-c-60-iso8859-1" "6x12")
2131 ("6x13"
2132 "-misc-fixed-medium-r-semicondensed--13-*-*-*-c-60-iso8859-1" "6x13")
2133 ("7x13" "-misc-fixed-medium-r-normal--13-*-*-*-c-70-iso8859-1" "7x13")
2134 ("7x14" "-misc-fixed-medium-r-normal--14-*-*-*-c-70-iso8859-1" "7x14")
2135 ("8x13" "-misc-fixed-medium-r-normal--13-*-*-*-c-80-iso8859-1" "8x13")
2136 ("9x15" "-misc-fixed-medium-r-normal--15-*-*-*-c-90-iso8859-1" "9x15")
2137 ("10x20" "-misc-fixed-medium-r-normal--20-*-*-*-c-100-iso8859-1" "10x20")
2138 ("11x18" "-misc-fixed-medium-r-normal--18-*-*-*-c-110-iso8859-1" "11x18")
2139 ("12x24" "-misc-fixed-medium-r-normal--24-*-*-*-c-120-iso8859-1" "12x24")
2140 ("")
2141 ("clean 5x8"
2142 "-schumacher-clean-medium-r-normal--8-*-*-*-c-50-iso8859-1")
2143 ("clean 6x8"
2144 "-schumacher-clean-medium-r-normal--8-*-*-*-c-60-iso8859-1")
2145 ("clean 8x8"
2146 "-schumacher-clean-medium-r-normal--8-*-*-*-c-80-iso8859-1")
2147 ("clean 8x10"
2148 "-schumacher-clean-medium-r-normal--10-*-*-*-c-80-iso8859-1")
2149 ("clean 8x14"
2150 "-schumacher-clean-medium-r-normal--14-*-*-*-c-80-iso8859-1")
2151 ("clean 8x16"
2152 "-schumacher-clean-medium-r-normal--16-*-*-*-c-80-iso8859-1")
2153 ("")
2154 ("sony 8x16" "-sony-fixed-medium-r-normal--16-*-*-*-c-80-iso8859-1")
2155 ;;; We don't seem to have these; who knows what they are.
2156 ;;; ("fg-18" "fg-18")
2157 ;;; ("fg-25" "fg-25")
2158 ("lucidasanstypewriter-12" "-b&h-lucidatypewriter-medium-r-normal-sans-*-120-*-*-*-*-iso8859-1")
2159 ("lucidasanstypewriter-bold-14" "-b&h-lucidatypewriter-bold-r-normal-sans-*-140-*-*-*-*-iso8859-1")
2160 ("lucidasanstypewriter-bold-24"
2161 "-b&h-lucidatypewriter-bold-r-normal-sans-*-240-*-*-*-*-iso8859-1")
2162 ;;; ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
2163 ;;; ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
2164 )
2165 ("Courier"
2166 ;; For these, we specify the point height.
2167 ("8" "-adobe-courier-medium-r-normal--*-80-*-*-m-*-iso8859-1")
2168 ("10" "-adobe-courier-medium-r-normal--*-100-*-*-m-*-iso8859-1")
2169 ("12" "-adobe-courier-medium-r-normal--*-120-*-*-m-*-iso8859-1")
2170 ("14" "-adobe-courier-medium-r-normal--*-140-*-*-m-*-iso8859-1")
2171 ("18" "-adobe-courier-medium-r-normal--*-180-*-*-m-*-iso8859-1")
2172 ("24" "-adobe-courier-medium-r-normal--*-240-*-*-m-*-iso8859-1")
2173 ("8 bold" "-adobe-courier-bold-r-normal--*-80-*-*-m-*-iso8859-1")
2174 ("10 bold" "-adobe-courier-bold-r-normal--*-100-*-*-m-*-iso8859-1")
2175 ("12 bold" "-adobe-courier-bold-r-normal--*-120-*-*-m-*-iso8859-1")
2176 ("14 bold" "-adobe-courier-bold-r-normal--*-140-*-*-m-*-iso8859-1")
2177 ("18 bold" "-adobe-courier-bold-r-normal--*-180-*-*-m-*-iso8859-1")
2178 ("24 bold" "-adobe-courier-bold-r-normal--*-240-*-*-m-*-iso8859-1")
2179 ("8 slant" "-adobe-courier-medium-o-normal--*-80-*-*-m-*-iso8859-1")
2180 ("10 slant" "-adobe-courier-medium-o-normal--*-100-*-*-m-*-iso8859-1")
2181 ("12 slant" "-adobe-courier-medium-o-normal--*-120-*-*-m-*-iso8859-1")
2182 ("14 slant" "-adobe-courier-medium-o-normal--*-140-*-*-m-*-iso8859-1")
2183 ("18 slant" "-adobe-courier-medium-o-normal--*-180-*-*-m-*-iso8859-1")
2184 ("24 slant" "-adobe-courier-medium-o-normal--*-240-*-*-m-*-iso8859-1")
2185 ("8 bold slant" "-adobe-courier-bold-o-normal--*-80-*-*-m-*-iso8859-1")
2186 ("10 bold slant" "-adobe-courier-bold-o-normal--*-100-*-*-m-*-iso8859-1")
2187 ("12 bold slant" "-adobe-courier-bold-o-normal--*-120-*-*-m-*-iso8859-1")
2188 ("14 bold slant" "-adobe-courier-bold-o-normal--*-140-*-*-m-*-iso8859-1")
2189 ("18 bold slant" "-adobe-courier-bold-o-normal--*-180-*-*-m-*-iso8859-1")
2190 ("24 bold slant" "-adobe-courier-bold-o-normal--*-240-*-*-m-*-iso8859-1"))
2191 )
2192 "X fonts suitable for use in Emacs.")
2194 (defun mouse-set-font (&rest fonts)
2195 "Select an emacs font from a list of known good fonts and fontsets."
2196 (interactive
2197 (progn (unless (display-multi-font-p)
2198 (error "Cannot change fonts on this display"))
2199 (x-popup-menu
2200 last-nonmenu-event
2201 ;; Append list of fontsets currently defined.
2202 (append x-fixed-font-alist (list (generate-fontset-menu))))))
2203 (if fonts
2204 (let (font)
2205 (while fonts
2206 (condition-case nil
2207 (progn
2208 (set-default-font (car fonts))
2209 (setq font (car fonts))
2210 (setq fonts nil))
2211 (error
2212 (setq fonts (cdr fonts)))))
2213 (if (null font)
2214 (error "Font not found")))))
2215 \f
2216 ;;; Bindings for mouse commands.
2218 (define-key global-map [down-mouse-1] 'mouse-drag-region)
2219 (global-set-key [mouse-1] 'mouse-set-point)
2220 (global-set-key [drag-mouse-1] 'mouse-set-region)
2222 ;; These are tested for in mouse-drag-region.
2223 (global-set-key [double-mouse-1] 'mouse-set-point)
2224 (global-set-key [triple-mouse-1] 'mouse-set-point)
2226 ;; Clicking on the fringes causes hscrolling:
2227 (global-set-key [left-fringe mouse-1] 'mouse-set-point)
2228 (global-set-key [right-fringe mouse-1] 'mouse-set-point)
2230 (global-set-key [mouse-2] 'mouse-yank-at-click)
2231 (global-set-key [mouse-3] 'mouse-save-then-kill)
2233 ;; By binding these to down-going events, we let the user use the up-going
2234 ;; event to make the selection, saving a click.
2235 (global-set-key [C-down-mouse-1] 'mouse-buffer-menu)
2236 (if (not (eq system-type 'ms-dos))
2237 (global-set-key [S-down-mouse-1] 'mouse-set-font))
2238 ;; C-down-mouse-2 is bound in facemenu.el.
2239 (global-set-key [C-down-mouse-3] 'mouse-popup-menubar-stuff)
2242 ;; Replaced with dragging mouse-1
2243 ;; (global-set-key [S-mouse-1] 'mouse-set-mark)
2245 ;; Binding mouse-1 to mouse-select-window when on mode-, header-, or
2246 ;; vertical-line prevents Emacs from signaling an error when the mouse
2247 ;; button is released after dragging these lines, on non-toolkit
2248 ;; versions.
2249 (global-set-key [mode-line mouse-1] 'mouse-select-window)
2250 (global-set-key [mode-line drag-mouse-1] 'mouse-select-window)
2251 (global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line)
2252 (global-set-key [header-line down-mouse-1] 'mouse-drag-header-line)
2253 (global-set-key [header-line mouse-1] 'mouse-select-window)
2254 (global-set-key [mode-line mouse-2] 'mouse-delete-other-windows)
2255 (global-set-key [mode-line mouse-3] 'mouse-delete-window)
2256 (global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally)
2257 (global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically)
2258 (global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically)
2259 (global-set-key [vertical-line down-mouse-1] 'mouse-drag-vertical-line)
2260 (global-set-key [vertical-line mouse-1] 'mouse-select-window)
2262 (provide 'mouse)
2264 ;; This file contains the functionality of the old mldrag.el.
2265 (defalias 'mldrag-drag-mode-line 'mouse-drag-mode-line)
2266 (defalias 'mldrag-drag-vertical-line 'mouse-drag-vertical-line)
2267 (make-obsolete 'mldrag-drag-mode-line 'mouse-drag-mode-line "21.1")
2268 (make-obsolete 'mldrag-drag-vertical-line 'mouse-drag-vertical-line "21.1")
2269 (provide 'mldrag)
2271 ;;; arch-tag: 9a710ce1-914a-4923-9b81-697f7bf82ab3
2272 ;;; mouse.el ends here