]> code.delx.au - gnu-emacs/blob - lisp/mouse.el
(mouse-drag-move-window-top): New function.
[gnu-emacs] / lisp / mouse.el
1 ;;; mouse.el --- window system-independent mouse support
2
3 ;; Copyright (C) 1993, 94, 95, 1999, 2000, 01, 2004
4 ;; Free Software Foundation, Inc.
5
6 ;; Maintainer: FSF
7 ;; Keywords: hardware, mouse
8
9 ;; This file is part of GNU Emacs.
10
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.
15
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.
20
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.
25
26 ;;; Commentary:
27
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.
33
34 ;;; Code:
35
36 ;;; Utility functions.
37
38 ;;; Indent track-mouse like progn.
39 (put 'track-mouse 'lisp-indent-function 0)
40
41 (defcustom mouse-yank-at-point nil
42 "*If non-nil, mouse yank commands yank at point instead of at click."
43 :type 'boolean
44 :group 'mouse)
45
46 (defcustom mouse-drag-copy-region t
47 "*If non-nil, mouse drag copies region to kill-ring."
48 :type 'boolean
49 :group 'mouse)
50
51 \f
52 ;; Provide a mode-specific menu on a mouse button.
53
54 (defun popup-menu (menu &optional position prefix)
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."
61 (let* ((map (cond
62 ((keymapp menu) menu)
63 ((and (listp menu) (keymapp (car menu))) menu)
64 (t (let* ((map (easy-menu-create-menu (car menu) (cdr menu)))
65 (filter (when (symbolp map)
66 (plist-get (get map 'menu-prop) :filter))))
67 (if filter (funcall filter (symbol-function map)) map)))))
68 event cmd)
69 (unless position
70 (let ((mp (mouse-pixel-position)))
71 (setq position (list (list (cadr mp) (cddr mp)) (car mp)))))
72 ;; The looping behavior was taken from lmenu's popup-menu-popup
73 (while (and map (setq event
74 ;; map could be a prefix key, in which case
75 ;; we need to get its function cell
76 ;; definition.
77 (x-popup-menu position (indirect-function map))))
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)))
81 (setq cmd
82 (if (and (not (keymapp map)) (listp map))
83 ;; We were given a list of keymaps. Search them all
84 ;; in sequence until a first binding is found.
85 (let ((mouse-click (apply 'vector event))
86 binding)
87 (while (and map (null binding))
88 (setq binding (lookup-key (car map) mouse-click))
89 (if (numberp binding) ; `too long'
90 (setq binding nil))
91 (setq map (cdr map)))
92 binding)
93 ;; We were given a single keymap.
94 (lookup-key map (apply 'vector event))))
95 ;; Clear out echoing, which perhaps shows a prefix arg.
96 (message "")
97 ;; Maybe try again but with the submap.
98 (setq map (if (keymapp cmd) cmd)))
99 ;; If the user did not cancel by refusing to select,
100 ;; and if the result is a command, run it.
101 (when (and (null map) (commandp cmd))
102 (setq prefix-arg prefix)
103 ;; `setup-specified-language-environment', for instance,
104 ;; expects this to be set from a menu keymap.
105 (setq last-command-event (car (last event)))
106 ;; mouse-major-mode-menu was using `command-execute' instead.
107 (call-interactively cmd))))
108
109 (defvar mouse-major-mode-menu-prefix) ; dynamically bound
110
111 (defun mouse-major-mode-menu (event prefix)
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.
116 (interactive "@e\nP")
117 ;; Let the mode update its menus first.
118 (run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
119 (let* (;; This is where mouse-major-mode-menu-prefix
120 ;; returns the prefix we should use (after menu-bar).
121 ;; It is either nil or (SOME-SYMBOL).
122 (mouse-major-mode-menu-prefix nil)
123 ;; Keymap from which to inherit; may be null.
124 (ancestor (mouse-major-mode-menu-1
125 (and (current-local-map)
126 (local-key-binding [menu-bar]))))
127 ;; Make a keymap in which our last command leads to a menu or
128 ;; default to the edit menu.
129 (newmap (if ancestor
130 (make-sparse-keymap (concat mode-name " Mode"))
131 menu-bar-edit-menu))
132 result)
133 (if ancestor
134 ;; Make our menu inherit from the desired keymap which we want
135 ;; to display as the menu now.
136 (set-keymap-parent newmap ancestor))
137 (popup-menu newmap event prefix)))
138
139
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))))
154
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.
159 (defun mouse-major-mode-menu-1 (menubar)
160 (if menubar
161 (let ((tail menubar)
162 submap)
163 (while tail
164 (if (consp (car tail))
165 (if submap
166 (setq submap t)
167 (setq submap (car tail))))
168 (setq tail (cdr tail)))
169 (if (eq submap t)
170 menubar
171 (setq mouse-major-mode-menu-prefix (list (car submap)))
172 (lookup-key menubar (vector (car submap)))))))
173
174 (defun mouse-popup-menubar (event prefix)
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."
178 (interactive "@e \nP")
179 (run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
180 (let* ((local-menu (and (current-local-map)
181 (lookup-key (current-local-map) [menu-bar])))
182 (global-menu (lookup-key global-map [menu-bar]))
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.
188 (minor-mode-menus
189 (mapcar
190 (function
191 (lambda (menu)
192 (let* ((minor-mode (car menu))
193 (menu (cdr menu))
194 (title-or-map (cadr menu)))
195 (or (stringp title-or-map)
196 (setq menu
197 (cons 'keymap
198 (cons (concat
199 (capitalize (subst-char-in-string
200 ?- ?\ (symbol-name
201 minor-mode)))
202 " Menu")
203 (cdr menu)))))
204 menu)))
205 (minor-mode-key-binding [menu-bar])))
206 (local-title-or-map (and local-menu (cadr local-menu)))
207 (global-title-or-map (cadr global-menu)))
208 (or (null local-menu)
209 (stringp local-title-or-map)
210 (setq local-menu (cons 'keymap
211 (cons (concat mode-name " Mode Menu")
212 (cdr local-menu)))))
213 (or (stringp global-title-or-map)
214 (setq global-menu (cons 'keymap
215 (cons "Global Menu"
216 (cdr global-menu)))))
217 ;; Supplying the list is faster than making a new map.
218 (popup-menu (append (list global-menu)
219 (if local-menu
220 (list local-menu))
221 minor-mode-menus)
222 event prefix)))
223
224 (defun mouse-popup-menubar-stuff (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."
227 (interactive "@e \nP")
228 (if (zerop (assoc-default 'menu-bar-lines (frame-parameters) 'eq 0))
229 (mouse-popup-menubar event prefix)
230 (mouse-major-mode-menu event prefix)))
231 \f
232 ;; Commands that operate on windows.
233
234 (defun mouse-minibuffer-check (event)
235 (let ((w (posn-window (event-start event))))
236 (and (window-minibuffer-p w)
237 (not (minibuffer-window-active-p w))
238 (error "Minibuffer window is not active")))
239 ;; Give temporary modes such as isearch a chance to turn off.
240 (run-hooks 'mouse-leave-buffer-hook))
241
242 (defun mouse-delete-window (click)
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."
246 (interactive "e")
247 (unless (one-window-p t)
248 (mouse-minibuffer-check click)
249 (delete-window (posn-window (event-start click)))))
250
251 (defun mouse-select-window (click)
252 "Select the window clicked on; don't move point."
253 (interactive "e")
254 (mouse-minibuffer-check click)
255 (let ((oframe (selected-frame))
256 (frame (window-frame (posn-window (event-start click)))))
257 (select-window (posn-window (event-start click)))
258 (raise-frame frame)
259 (select-frame frame)
260 (or (eq frame oframe)
261 (set-mouse-position (selected-frame) (1- (frame-width)) 0))))
262
263 (defun mouse-tear-off-window (click)
264 "Delete the window clicked on, and create a new frame displaying its buffer."
265 (interactive "e")
266 (mouse-minibuffer-check click)
267 (let* ((window (posn-window (event-start click)))
268 (buf (window-buffer window))
269 (frame (make-frame)))
270 (select-frame frame)
271 (switch-to-buffer buf)
272 (delete-window window)))
273
274 (defun mouse-delete-other-windows ()
275 "Delete all windows except the one you click on."
276 (interactive "@")
277 (delete-other-windows))
278
279 (defun mouse-split-window-vertically (click)
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."
283 (interactive "@e")
284 (mouse-minibuffer-check click)
285 (let ((start (event-start click)))
286 (select-window (posn-window start))
287 (let ((new-height (1+ (cdr (posn-col-row (event-end click)))))
288 (first-line window-min-height)
289 (last-line (- (window-height) window-min-height)))
290 (if (< last-line first-line)
291 (error "Window too short to split")
292 (split-window-vertically
293 (min (max new-height first-line) last-line))))))
294
295 (defun mouse-split-window-horizontally (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."
299 (interactive "@e")
300 (mouse-minibuffer-check click)
301 (let ((start (event-start click)))
302 (select-window (posn-window start))
303 (let ((new-width (1+ (car (posn-col-row (event-end click)))))
304 (first-col window-min-width)
305 (last-col (- (window-width) window-min-width)))
306 (if (< last-col first-col)
307 (error "Window too narrow to split")
308 (split-window-horizontally
309 (min (max new-width first-col) last-col))))))
310
311 (defun mouse-drag-window-above (window)
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."
314 (let ((top (nth 1 (window-edges window)))
315 (start-window window)
316 above-window)
317 (setq window (previous-window window 0))
318 (while (and (not above-window) (not (eq window start-window)))
319 (if (= (+ (window-height window) (nth 1 (window-edges window)))
320 top)
321 (setq above-window window))
322 (setq window (previous-window window)))
323 above-window))
324
325 (defun mouse-drag-move-window-bottom (window growth)
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."
330 (let ((excess (- window-min-height (+ (window-height window) growth))))
331 ;; EXCESS is the number of lines we need to take from windows above.
332 (if (> excess 0)
333 ;; This can recursively shrink windows all the way up.
334 (let ((window-above (mouse-drag-window-above window)))
335 (if window-above
336 (mouse-drag-move-window-bottom window-above (- excess))))))
337 (save-selected-window
338 (select-window window)
339 (enlarge-window growth nil (> growth 0))))
340
341 (defsubst mouse-drag-move-window-top (window growth)
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.
348 (let ((window-above (mouse-drag-window-above window)))
349 (and window-above
350 (mouse-drag-move-window-bottom window-above (- growth)))))
351
352 (defun mouse-drag-mode-line-1 (start-event mode-line-p)
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.
357 (run-hooks 'mouse-leave-buffer-hook)
358 (let* ((done nil)
359 (echo-keystrokes 0)
360 (start (event-start start-event))
361 (start-event-window (posn-window start))
362 (start-event-frame (window-frame start-event-window))
363 (start-nwindows (count-windows t))
364 (old-selected-window (selected-window))
365 (minibuffer (frame-parameter nil 'minibuffer))
366 should-enlarge-minibuffer event mouse y top bot edges wconfig growth)
367 (track-mouse
368 (progn
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.
372 (select-window start-event-window)
373
374 ;; if this is the bottommost ordinary window, then to
375 ;; move its modeline the minibuffer must be enlarged.
376 (setq should-enlarge-minibuffer
377 (and minibuffer
378 mode-line-p
379 (not (one-window-p t))
380 (= (nth 1 (window-edges minibuffer))
381 (nth 3 (window-edges)))))
382
383 ;; loop reading events and sampling the position of
384 ;; the mouse.
385 (while (not done)
386 (setq event (read-event)
387 mouse (mouse-position))
388
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.
400 (cond ((integerp event)
401 (setq done t))
402
403 ((eq (car event) 'switch-frame)
404 nil)
405
406 ((not (memq (car event) '(mouse-movement scroll-bar-movement)))
407 (when (consp event)
408 (push event unread-command-events))
409 (setq done t))
410
411 ((not (eq (car mouse) start-event-frame))
412 nil)
413
414 ((null (car (cdr mouse)))
415 nil)
416
417 (t
418 (setq y (cdr (cdr mouse))
419 edges (window-edges)
420 top (nth 1 edges)
421 bot (nth 3 edges))
422
423 ;; compute size change needed
424 (cond (mode-line-p
425 (setq growth (- y bot -1)))
426 (t ; header line
427 (when (< (- bot y) window-min-height)
428 (setq y (- bot window-min-height)))
429 ;; The window's top includes the header line!
430 (setq growth (- top y))))
431 (setq wconfig (current-window-configuration))
432
433 ;; Check for an error case.
434 (when (and (/= growth 0)
435 (not minibuffer)
436 (one-window-p t))
437 (error "Attempt to resize sole window"))
438
439 ;; grow/shrink minibuffer?
440 (if should-enlarge-minibuffer
441 (progn
442 ;; yes. briefly select minibuffer so
443 ;; enlarge-window will affect the
444 ;; correct window.
445 (select-window minibuffer)
446 ;; scale back shrinkage if it would
447 ;; make the minibuffer less than 1
448 ;; line tall.
449 (if (and (> growth 0)
450 (< (- (window-height minibuffer)
451 growth)
452 1))
453 (setq growth (1- (window-height minibuffer))))
454 (enlarge-window (- growth))
455 (select-window start-event-window))
456 ;; no. grow/shrink the selected window
457 ;(message "growth = %d" growth)
458 (if mode-line-p
459 (mouse-drag-move-window-bottom start-event-window growth)
460 (mouse-drag-move-window-top start-event-window growth)))
461
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.
472 (when (or (/= start-nwindows (count-windows t))
473 (and (not should-enlarge-minibuffer)
474 (> growth 0)
475 mode-line-p
476 (/= top (nth 1 (window-edges)))))
477 (set-window-configuration wconfig)))))))))
478
479 (defun mouse-drag-mode-line (start-event)
480 "Change the height of a window by dragging on the mode line."
481 (interactive "e")
482 (mouse-drag-mode-line-1 start-event t))
483
484 (defun mouse-drag-header-line (start-event)
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."
488 (interactive "e")
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.
492 (let* ((start (event-start start-event))
493 (window (posn-window start))
494 (frame (window-frame window))
495 (first-window (frame-first-window frame)))
496 (when (or (eq window first-window)
497 (= (nth 1 (window-edges window))
498 (nth 1 (window-edges first-window))))
499 (error "Cannot move header-line at the top of the frame"))
500 (mouse-drag-mode-line-1 start-event nil)))
501
502 \f
503 (defun mouse-drag-vertical-line (start-event)
504 "Change the width of a window by dragging on the vertical line."
505 (interactive "e")
506 ;; Give temporary modes such as isearch a chance to turn off.
507 (run-hooks 'mouse-leave-buffer-hook)
508 (let* ((done nil)
509 (echo-keystrokes 0)
510 (start-event-frame (window-frame (car (car (cdr start-event)))))
511 (start-event-window (car (car (cdr start-event))))
512 (start-nwindows (count-windows t))
513 (old-selected-window (selected-window))
514 event mouse x left right edges wconfig growth
515 (which-side
516 (or (cdr (assq 'vertical-scroll-bars (frame-parameters start-event-frame)))
517 'right)))
518 (if (one-window-p t)
519 (error "Attempt to resize sole ordinary window"))
520 (if (eq which-side 'right)
521 (if (= (nth 2 (window-edges start-event-window))
522 (frame-width start-event-frame))
523 (error "Attempt to drag rightmost scrollbar"))
524 (if (= (nth 0 (window-edges start-event-window)) 0)
525 (error "Attempt to drag leftmost scrollbar")))
526 (track-mouse
527 (progn
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.
531 (select-window start-event-window)
532 ;; loop reading events and sampling the position of
533 ;; the mouse.
534 (while (not done)
535 (setq event (read-event)
536 mouse (mouse-position))
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.
548 (cond ((integerp event)
549 (setq done t))
550 ((eq (car event) 'switch-frame)
551 nil)
552 ((not (memq (car event)
553 '(mouse-movement scroll-bar-movement)))
554 (if (consp event)
555 (setq unread-command-events
556 (cons event unread-command-events)))
557 (setq done t))
558 ((not (eq (car mouse) start-event-frame))
559 nil)
560 ((null (car (cdr mouse)))
561 nil)
562 (t
563 (save-selected-window
564 ;; If the scroll bar is on the window's left,
565 ;; adjust the window on the left.
566 (unless (eq which-side 'right)
567 (select-window (previous-window)))
568 (setq x (- (car (cdr mouse))
569 (if (eq which-side 'right) 0 2))
570 edges (window-edges)
571 left (nth 0 edges)
572 right (nth 2 edges))
573 ;; scale back a move that would make the
574 ;; window too thin.
575 (if (< (- x left -1) window-min-width)
576 (setq x (+ left window-min-width -1)))
577 ;; compute size change needed
578 (setq growth (- x right -1)
579 wconfig (current-window-configuration))
580 (enlarge-window growth t)
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.
588 (if (or (/= start-nwindows (count-windows t))
589 (/= left (nth 0 (window-edges))))
590 (set-window-configuration wconfig))))))))))
591 \f
592 (defun mouse-set-point (event)
593 "Move point to the position clicked on with the mouse.
594 This should be bound to a mouse click event type."
595 (interactive "e")
596 (mouse-minibuffer-check event)
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.
599 (posn-set-point (event-end event)))
600
601 (defvar mouse-last-region-beg nil)
602 (defvar mouse-last-region-end nil)
603 (defvar mouse-last-region-tick nil)
604
605 (defun mouse-region-match ()
606 "Return non-nil if there's an active region that was set with the mouse."
607 (and (mark t) mark-active
608 (eq mouse-last-region-beg (region-beginning))
609 (eq mouse-last-region-end (region-end))
610 (eq mouse-last-region-tick (buffer-modified-tick))))
611
612 (defun mouse-set-region (click)
613 "Set the region to the text dragged over, and copy to kill ring.
614 This should be bound to a mouse drag event."
615 (interactive "e")
616 (mouse-minibuffer-check click)
617 (let ((posn (event-start click))
618 (end (event-end click)))
619 (select-window (posn-window posn))
620 (if (numberp (posn-point posn))
621 (goto-char (posn-point posn)))
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.
624 (or transient-mark-mode
625 (memq (framep (selected-frame)) '(x pc w32))
626 (sit-for 1))
627 (push-mark)
628 (set-mark (point))
629 (if (numberp (posn-point end))
630 (goto-char (posn-point end)))
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.
634 (when mouse-drag-copy-region
635 (let (this-command last-command deactivate-mark)
636 (copy-region-as-kill (mark) (point))))
637 (mouse-set-region-1)))
638
639 (defun mouse-set-region-1 ()
640 ;; Set transient-mark-mode for a little while.
641 (if (memq transient-mark-mode '(nil identity))
642 (setq transient-mark-mode 'only))
643 (setq mouse-last-region-beg (region-beginning))
644 (setq mouse-last-region-end (region-end))
645 (setq mouse-last-region-tick (buffer-modified-tick)))
646
647 (defcustom mouse-scroll-delay 0.25
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."
655 :type 'number
656 :group 'mouse)
657
658 (defcustom mouse-scroll-min-lines 1
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."
665 :type 'integer
666 :group 'mouse)
667
668 (defun mouse-scroll-subr (window jump &optional overlay start)
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."
673 (cond
674 ((and (> jump 0) (< jump mouse-scroll-min-lines))
675 (setq jump mouse-scroll-min-lines))
676 ((and (< jump 0) (< (- jump) mouse-scroll-min-lines))
677 (setq jump (- mouse-scroll-min-lines))))
678 (let ((opoint (point)))
679 (while (progn
680 (goto-char (window-start window))
681 (if (not (zerop (vertical-motion jump window)))
682 (progn
683 (set-window-start window (point))
684 (if (natnump jump)
685 (if (window-end window)
686 (progn
687 (goto-char (window-end window))
688 ;; window-end doesn't reflect the window's new
689 ;; start position until the next redisplay.
690 (vertical-motion (1- jump) window))
691 (vertical-motion (- (window-height window) 2)))
692 (goto-char (window-start window)))
693 (if overlay
694 (move-overlay overlay start (point)))
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.
698 (or (eq window (selected-window))
699 (goto-char opoint))
700 (sit-for mouse-scroll-delay)))))
701 (or (eq window (selected-window))
702 (goto-char opoint))))
703
704 ;; Create an overlay and immediately delete it, to get "overlay in no buffer".
705 (defvar mouse-drag-overlay (make-overlay 1 1))
706 (delete-overlay mouse-drag-overlay)
707 (overlay-put mouse-drag-overlay 'face 'region)
708
709 (defvar mouse-selection-click-count 0)
710
711 (defvar mouse-selection-click-count-buffer nil)
712
713 (defun mouse-drag-region (start-event)
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.
719
720 If the click is in the echo area, display the `*Messages*' buffer."
721 (interactive "e")
722 (let ((w (posn-window (event-start start-event))))
723 (if (not (or (not (window-minibuffer-p w))
724 (minibuffer-window-active-p w)))
725 (save-excursion
726 (read-event)
727 (set-buffer "*Messages*")
728 (goto-char (point-max))
729 (display-buffer (current-buffer)))
730 ;; Give temporary modes such as isearch a chance to turn off.
731 (run-hooks 'mouse-leave-buffer-hook)
732 (mouse-drag-region-1 start-event))))
733
734 (defun mouse-drag-region-1 (start-event)
735 (mouse-minibuffer-check start-event)
736 (let* ((echo-keystrokes 0)
737 (start-posn (event-start start-event))
738 (start-point (posn-point start-posn))
739 (start-window (posn-window start-posn))
740 (start-window-start (window-start start-window))
741 (start-frame (window-frame start-window))
742 (start-hscroll (window-hscroll start-window))
743 (bounds (window-edges start-window))
744 (top (nth 1 bounds))
745 (bottom (if (window-minibuffer-p start-window)
746 (nth 3 bounds)
747 ;; Don't count the mode line.
748 (1- (nth 3 bounds))))
749 (click-count (1- (event-click-count start-event))))
750 (setq mouse-selection-click-count click-count)
751 (setq mouse-selection-click-count-buffer (current-buffer))
752 (mouse-set-point start-event)
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.
755 (if (< (point) start-point)
756 (goto-char start-point))
757 (setq start-point (point))
758 (let ((range (mouse-start-end start-point start-point click-count)))
759 (move-overlay mouse-drag-overlay (car range) (nth 1 range)
760 (window-buffer start-window))
761 (overlay-put mouse-drag-overlay 'window (selected-window)))
762 (deactivate-mark)
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).
766 (let (event end end-point last-end-point (end-of-range (point)))
767 (track-mouse
768 (while (progn
769 (setq event (read-event))
770 (or (mouse-movement-p event)
771 (eq (car-safe event) 'switch-frame)))
772 (if (eq (car-safe event) 'switch-frame)
773 nil
774 (setq end (event-end event)
775 end-point (posn-point end))
776 (if (numberp end-point)
777 (setq last-end-point end-point))
778
779 (cond
780 ;; Are we moving within the original window?
781 ((and (eq (posn-window end) start-window)
782 (integer-or-marker-p end-point))
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.
786 (goto-char start-point)
787 (goto-char end-point)
788 (if (zerop (% click-count 3))
789 (setq end-of-range (point)))
790 (let ((range (mouse-start-end start-point (point) click-count)))
791 (move-overlay mouse-drag-overlay (car range) (nth 1 range))))
792
793 (t
794 (let ((mouse-row (cdr (cdr (mouse-position)))))
795 (cond
796 ((null mouse-row))
797 ((< mouse-row top)
798 (mouse-scroll-subr start-window (- mouse-row top)
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.
802 (setq end-of-range (overlay-start mouse-drag-overlay)))
803 ((>= mouse-row bottom)
804 (mouse-scroll-subr start-window (1+ (- mouse-row bottom))
805 mouse-drag-overlay start-point)
806 (setq end-of-range (overlay-end mouse-drag-overlay))))))))))
807
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.
811 (when (and (memq 'drag (event-modifiers (car-safe event)))
812 (setq end (event-end event)
813 end-point (posn-point end))
814 (eq (posn-window end) start-window)
815 (integer-or-marker-p end-point))
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.
819 (goto-char start-point)
820 (goto-char end-point)
821 (if (zerop (% click-count 3))
822 (setq end-of-range (point)))
823 (let ((range (mouse-start-end start-point (point) click-count)))
824 (move-overlay mouse-drag-overlay (car range) (nth 1 range))))
825
826 (if (consp event)
827 (let ((fun (key-binding (vector (car event)))))
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.
831 (if (not (= (overlay-start mouse-drag-overlay)
832 (overlay-end mouse-drag-overlay)))
833 (let* ((stop-point
834 (if (numberp (posn-point (event-end event)))
835 (posn-point (event-end event))
836 last-end-point))
837 ;; The end that comes from where we ended the drag.
838 ;; Point goes here.
839 (region-termination
840 (if (and stop-point (< stop-point start-point))
841 (overlay-start mouse-drag-overlay)
842 (overlay-end mouse-drag-overlay)))
843 ;; The end that comes from where we started the drag.
844 ;; Mark goes there.
845 (region-commencement
846 (- (+ (overlay-end mouse-drag-overlay)
847 (overlay-start mouse-drag-overlay))
848 region-termination))
849 last-command this-command)
850 (push-mark region-commencement t t)
851 (goto-char region-termination)
852 ;; Don't let copy-region-as-kill set deactivate-mark.
853 (when mouse-drag-copy-region
854 (let (deactivate-mark)
855 (copy-region-as-kill (point) (mark t))))
856 (let ((buffer (current-buffer)))
857 (mouse-show-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.
862 (and (mark t) mark-active
863 (eq buffer (current-buffer))
864 (mouse-set-region-1))))
865 (delete-overlay mouse-drag-overlay)
866 ;; Run the binding of the terminating up-event.
867 (when (and (functionp fun)
868 (= start-hscroll (window-hscroll start-window))
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.
877 (or end-point
878 (= (window-start start-window)
879 start-window-start)))
880 (setq unread-command-events
881 (cons event unread-command-events)))))
882 (delete-overlay mouse-drag-overlay)))))
883 \f
884 ;; Commands to handle xterm-style multiple clicks.
885
886 (defun mouse-skip-word (dir)
887 "Skip over word, over whitespace, or over identical punctuation.
888 If DIR is positive skip forward; if negative, skip backward."
889 (let* ((char (following-char))
890 (syntax (char-to-string (char-syntax char))))
891 (cond ((string= syntax "w")
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.
897 (if (< dir 0)
898 (if (not (looking-at "\\<"))
899 (forward-word -1))
900 (if (or (looking-at "\\<") (not (looking-at "\\>")))
901 (forward-word 1))))
902 ((string= syntax " ")
903 (if (< dir 0)
904 (skip-syntax-backward syntax)
905 (skip-syntax-forward syntax)))
906 ((string= syntax "_")
907 (if (< dir 0)
908 (skip-syntax-backward "w_")
909 (skip-syntax-forward "w_")))
910 ((< dir 0)
911 (while (and (not (bobp)) (= (preceding-char) char))
912 (forward-char -1)))
913 (t
914 (while (and (not (eobp)) (= (following-char) char))
915 (forward-char 1))))))
916
917 (defun mouse-start-end (start end mode)
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."
923 (if (> start end)
924 (let ((temp start))
925 (setq start end
926 end temp)))
927 (setq mode (mod mode 3))
928 (cond ((= mode 0)
929 (list start end))
930 ((and (= mode 1)
931 (= start end)
932 (char-after start)
933 (= (char-syntax (char-after start)) ?\())
934 (list start
935 (save-excursion
936 (goto-char start)
937 (forward-sexp 1)
938 (point))))
939 ((and (= mode 1)
940 (= start end)
941 (char-after start)
942 (= (char-syntax (char-after start)) ?\)))
943 (list (save-excursion
944 (goto-char (1+ start))
945 (backward-sexp 1)
946 (point))
947 (1+ start)))
948 ((and (= mode 1)
949 (= start end)
950 (char-after start)
951 (= (char-syntax (char-after start)) ?\"))
952 (let ((open (or (eq start (point-min))
953 (save-excursion
954 (goto-char (- start 1))
955 (looking-at "\\s(\\|\\s \\|\\s>")))))
956 (if open
957 (list start
958 (save-excursion
959 (condition-case nil
960 (progn
961 (goto-char start)
962 (forward-sexp 1)
963 (point))
964 (error end))))
965 (list (save-excursion
966 (condition-case nil
967 (progn
968 (goto-char (1+ start))
969 (backward-sexp 1)
970 (point))
971 (error end)))
972 (1+ start)))))
973 ((= mode 1)
974 (list (save-excursion
975 (goto-char start)
976 (mouse-skip-word -1)
977 (point))
978 (save-excursion
979 (goto-char end)
980 (mouse-skip-word 1)
981 (point))))
982 ((= mode 2)
983 (list (save-excursion
984 (goto-char start)
985 (beginning-of-line 1)
986 (point))
987 (save-excursion
988 (goto-char end)
989 (forward-line 1)
990 (point))))))
991 \f
992 ;; Subroutine: set the mark where CLICK happened,
993 ;; but don't do anything else.
994 (defun mouse-set-mark-fast (click)
995 (mouse-minibuffer-check click)
996 (let ((posn (event-start click)))
997 (select-window (posn-window posn))
998 (if (numberp (posn-point posn))
999 (push-mark (posn-point posn) t t))))
1000
1001 (defun mouse-undouble-last-event (events)
1002 (let* ((index (1- (length events)))
1003 (last (nthcdr index events))
1004 (event (car last))
1005 (basic (event-basic-type event))
1006 (old-modifiers (event-modifiers event))
1007 (modifiers (delq 'double (delq 'triple (copy-sequence old-modifiers))))
1008 (new
1009 (if (consp event)
1010 ;; Use reverse, not nreverse, since event-modifiers
1011 ;; does not copy the list it returns.
1012 (cons (event-convert-list (reverse (cons basic modifiers)))
1013 (cdr event))
1014 event)))
1015 (setcar last new)
1016 (if (and (not (equal modifiers old-modifiers))
1017 (key-binding (apply 'vector events)))
1018 t
1019 (setcar last event)
1020 nil)))
1021
1022 ;; Momentarily show where the mark is, if highlighting doesn't show it.
1023
1024 (defvar mouse-region-delete-keys '([delete] [deletechar])
1025 "List of keys which shall cause the mouse region to be deleted.")
1026
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))))
1077
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))))
1093
1094 (defun mouse-kill (click)
1095 "Kill the region between point and the mouse click.
1096 The text is saved in the kill ring, as with \\[kill-region]."
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)))))
1105
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.
1110 Prefix arguments are interpreted as with \\[yank].
1111 If `mouse-yank-at-point' is non-nil, insert at point
1112 regardless of where you click."
1113 (interactive "*e\nP")
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))
1120
1121 (defun mouse-kill-ring-save (click)
1122 "Copy the region between point and the mouse click in the kill ring.
1123 This does not delete the region; it acts like \\[kill-ring-save]."
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))
1129
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.
1133
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)
1137
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))
1171
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.
1176 Otherwise, it adds the text to the kill ring, like \\[kill-ring-save],
1177 which prepares for a second click to delete the text.
1178
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)
1274
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)
1279
1280 (defvar mouse-secondary-click-count 0)
1281
1282 ;; A marker which records the specified first end for a secondary selection.
1283 ;; May be nil.
1284 (defvar mouse-secondary-start nil)
1285
1286 (defun mouse-start-secondary (click)
1287 "Set one end of the secondary selection to the position clicked on.
1288 Use \\[mouse-secondary-save-then-kill] to set the other end
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)))))))
1303
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))))
1320
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)))
1367
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)))))))))
1394
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)))))))))
1409
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)))
1420
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.
1425
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))
1445
1446 (defun mouse-secondary-save-then-kill (click)
1447 "Save text to point in kill ring; the second time, kill the text.
1448 You must use this in a buffer where you have recently done \\[mouse-start-secondary].
1449 If the text between where you did \\[mouse-start-secondary] and where
1450 you use this command matches the text at the front of the kill ring,
1451 this command deletes the text.
1452 Otherwise, it adds the text to the kill ring, like \\[kill-ring-save],
1453 which prepares for a second click with this command to delete the text.
1454
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)
1570
1571 (defcustom mouse-buffer-menu-mode-mult 4
1572 "*Group the buffers by the major mode groups on \\[mouse-buffer-menu]?
1573 This number which determines (in a hairy way) whether \\[mouse-buffer-menu]
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")
1581
1582 (defvar mouse-buffer-menu-mode-groups
1583 '(("Info\\|Help\\|Apropos\\|Man" . "Help")
1584 ("\\bVM\\b\\|\\bMH\\b\\|Message\\|Mail\\|Group\\|Score\\|Summary\\|Article"
1585 . "Mail/News")
1586 ("\\<C\\>" . "C")
1587 ("ObjC" . "C")
1588 ("Text" . "Text")
1589 ("Outline" . "Text")
1590 ("\\(HT\\|SG\\|X\\|XHT\\)ML" . "SGML")
1591 ("log\\|diff\\|vc\\|cvs" . "Version Control") ; "Change Management"?
1592 ("Lisp" . "Lisp"))
1593 "How to group various major modes together in \\[mouse-buffer-menu].
1594 Each element has the form (REGEXP . GROUPNAME).
1595 If the major mode's name string matches REGEXP, use GROUPNAME instead.")
1596
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)))))
1684
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)))
1726
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.
1749
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)
1909 ;;;!! ;;(defvar begin-delim "[^ \t]")
1910 ;;;!! ;;(defvar end-delim "[^ \t]")
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.
2075
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.
2112
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)))))
2122
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.")
2193
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.
2217
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)
2221
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)
2225
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)
2229
2230 (global-set-key [mouse-2] 'mouse-yank-at-click)
2231 (global-set-key [mouse-3] 'mouse-save-then-kill)
2232
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)
2240
2241
2242 ;; Replaced with dragging mouse-1
2243 ;; (global-set-key [S-mouse-1] 'mouse-set-mark)
2244
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)
2261
2262 (provide 'mouse)
2263
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)
2270
2271 ;;; arch-tag: 9a710ce1-914a-4923-9b81-697f7bf82ab3
2272 ;;; mouse.el ends here