lisp/mouse.el

   1 ;;; mouse.el --- window system-independent mouse support.
   2
   3 ;;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
   4
   5 ;; Maintainer: FSF
   6 ;; Keywords: hardware
   7
   8 ;;; This file is part of GNU Emacs.
   9
  10 ;;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;;; it under the terms of the GNU General Public License as published by
  12 ;;; the Free Software Foundation; either version 2, or (at your option)
  13 ;;; any later version.
  14
  15 ;;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;;; GNU General Public License for more details.
  19
  20 ;;; You should have received a copy of the GNU General Public License
  21 ;;; along with GNU Emacs; see the file COPYING.  If not, write to
  22 ;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23
  24 ;;; Commentary:
  25
  26 ;; This package provides various useful commands (including help
  27 ;; system access) through the mouse.  All this code assumes that mouse
  28 ;; interpretation has been abstracted into Emacs input events.
  29 ;;
  30 ;; The code is rather X-dependent.
  31
  32 ;;; Code:
  33
  34 ;;; Utility functions.
  35
  36 ;;; Indent track-mouse like progn.
  37 (put 'track-mouse 'lisp-indent-function 0)
  38
  39 (defvar mouse-yank-at-point nil
  40   "*If non-nil, mouse yank commands yank at point instead of at click.")
  41 \f
  42 ;; Provide a mode-specific menu on a mouse button.
  43
  44 (defun mouse-major-mode-menu (event)
  45   "Pop up a mode-specific menu of mouse commands."
  46   ;; Switch to the window clicked on, because otherwise
  47   ;; the mode's commands may not make sense.
  48   (interactive "@e")
  49   (let ((newmap (make-sparse-keymap))
  50         (unread-command-events (list event)))
  51     ;; Make a keymap in which our last command leads to a menu
  52     (define-key newmap (vector (car event))
  53       (nconc (make-sparse-keymap "Menu")
  54              (mouse-major-mode-menu-1
  55               (lookup-key (current-local-map) [menu-bar]))))
  56     (mouse-major-mode-menu-compute-equiv-keys newmap)
  57     (command-execute
  58      ;; Make NEWMAP override the usual definition
  59      ;; of the mouse button that got us here.
  60      ;; Then read the user's menu choice.
  61      (let ((minor-mode-map-alist
  62             (cons (cons t newmap) minor-mode-map-alist)))
  63        (lookup-key newmap (read-key-sequence ""))))))
  64
  65 ;; Compute and cache the equivalent keys in MENU and all its submenus.
  66 (defun mouse-major-mode-menu-compute-equiv-keys (menu)
  67   (and (eq (car menu) 'keymap)
  68        (x-popup-menu nil menu))
  69   (while menu
  70     (and (consp (car menu))
  71          (consp (cdr (car menu)))
  72          (let ((tail (cdr (car menu))))
  73            (while (and (consp tail)
  74                        (not (eq (car tail) 'keymap)))
  75              (setq tail (cdr tail)))
  76            (if (consp tail)
  77                (mouse-major-mode-menu-compute-equiv-keys tail))))
  78     (setq menu (cdr menu))))
  79
  80 ;; Given a mode's menu bar keymap,
  81 ;; if it defines exactly one menu bar menu,
  82 ;; return just that menu.
  83 ;; Otherwise return a menu for all of them.
  84 (defun mouse-major-mode-menu-1 (menubar)
  85   (if menubar
  86       (let ((tail menubar)
  87             submap)
  88         (while tail
  89           (if (consp (car tail))
  90               (if submap
  91                   (setq submap t)
  92                 (setq submap (cdr (car tail)))))
  93           (setq tail (cdr tail)))
  94         (if (eq submap t) menubar
  95           submap))))
  96 \f
  97 ;; Commands that operate on windows.
  98
  99 (defun mouse-minibuffer-check (event)
 100   (let ((w (posn-window (event-start event))))
 101     (and (window-minibuffer-p w)
 102          (not (minibuffer-window-active-p w))
 103          (error "Minibuffer window is not active"))))
 104
 105 (defun mouse-delete-window (click)
 106   "Delete the window you click on.
 107 This must be bound to a mouse click."
 108   (interactive "e")
 109   (mouse-minibuffer-check click)
 110   (delete-window (posn-window (event-start click))))
 111
 112 (defun mouse-select-window (click)
 113   "Select the window clicked on; don't move point."
 114   (interactive "e")
 115   (mouse-minibuffer-check click)
 116   (let ((oframe (selected-frame))
 117         (frame (window-frame (posn-window (event-start click)))))
 118     (select-window (posn-window (event-start click)))
 119     (raise-frame frame)
 120     (select-frame frame)
 121     (or (eq frame oframe)
 122         (set-mouse-position (selected-frame) (1- (frame-width)) 0))
 123     (unfocus-frame)))
 124
 125 (defun mouse-tear-off-window (click)
 126   "Delete the window clicked on, and create a new frame displaying its buffer."
 127   (interactive "e")
 128   (mouse-minibuffer-check click)
 129   (let* ((window (posn-window (event-start click)))
 130          (buf (window-buffer window))
 131          (frame (make-frame)))
 132     (select-frame frame)
 133     (switch-to-buffer buf)
 134     (delete-window window)))
 135
 136 (defun mouse-delete-other-windows ()
 137   "Delete all window except the one you click on."
 138   (interactive "@")
 139   (delete-other-windows))
 140
 141 (defun mouse-split-window-vertically (click)
 142   "Select Emacs window mouse is on, then split it vertically in half.
 143 The window is split at the line clicked on.
 144 This command must be bound to a mouse click."
 145   (interactive "@e")
 146   (mouse-minibuffer-check click)
 147   (let ((start (event-start click)))
 148     (select-window (posn-window start))
 149     (let ((new-height (1+ (cdr (posn-col-row (event-end click)))))
 150           (first-line window-min-height)
 151           (last-line (- (window-height) window-min-height)))
 152       (if (< last-line first-line)
 153           (error "Window too short to split")
 154         (split-window-vertically
 155          (min (max new-height first-line) last-line))))))
 156
 157 (defun mouse-split-window-horizontally (click)
 158   "Select Emacs window mouse is on, then split it horizontally in half.
 159 The window is split at the column clicked on.
 160 This command must be bound to a mouse click."
 161   (interactive "@e")
 162   (mouse-minibuffer-check click)
 163   (let ((start (event-start click)))
 164     (select-window (posn-window start))
 165     (let ((new-width (1+ (car (posn-col-row (event-end click)))))
 166           (first-col window-min-width)
 167           (last-col (- (window-width) window-min-width)))
 168       (if (< last-col first-col)
 169           (error "Window too narrow to split")
 170         (split-window-horizontally
 171          (min (max new-width first-col) last-col))))))
 172
 173 (defun mouse-drag-mode-line (start-event)
 174   "Change the height of a window by dragging on the mode line."
 175   (interactive "e")
 176   (let ((done nil)
 177         (echo-keystrokes 0)
 178         (start-event-frame (window-frame (car (car (cdr start-event)))))
 179         (start-event-window (car (car (cdr start-event))))
 180         (start-nwindows (count-windows t))
 181         (old-selected-window (selected-window))
 182         should-enlarge-minibuffer
 183         event mouse minibuffer y top bot edges wconfig params growth)
 184     (setq params (frame-parameters))
 185     (if (and (not (setq minibuffer (cdr (assq 'minibuffer params))))
 186              (one-window-p t))
 187         (error "Attempt to resize sole window"))
 188     (track-mouse
 189       (progn
 190         ;; enlarge-window only works on the selected window, so
 191         ;; we must select the window where the start event originated.
 192         ;; unwind-protect will restore the old selected window later.
 193         (select-window start-event-window)
 194         ;; if this is the bottommost ordinary window, then to
 195         ;; move its modeline the minibuffer must be enlarged.
 196         (setq should-enlarge-minibuffer
 197               (and minibuffer
 198                    (not (one-window-p t))
 199                    (= (nth 1 (window-edges minibuffer))
 200                       (nth 3 (window-edges)))))
 201         ;; loop reading events and sampling the position of
 202         ;; the mouse.
 203         (while (not done)
 204           (setq event (read-event)
 205                 mouse (mouse-position))
 206           ;; do nothing if
 207           ;;   - there is a switch-frame event.
 208           ;;   - the mouse isn't in the frame that we started in
 209           ;;   - the mouse isn't in any Emacs frame
 210           ;; drag if
 211           ;;   - there is a mouse-movement event
 212           ;;   - there is a scroll-bar-movement event
 213           ;;     (same as mouse movement for our purposes)
 214           ;; quit if
 215           ;;   - there is a keyboard event or some other unknown event
 216           ;;     unknown event.
 217           (cond ((integerp event)
 218                  (setq done t))
 219                 ((eq (car event) 'switch-frame)
 220                  nil)
 221                 ((not (memq (car event)
 222                             '(mouse-movement scroll-bar-movement)))
 223                  (if (consp event)
 224                      (setq unread-command-events
 225                            (cons event unread-command-events)))
 226                  (setq done t))
 227                 ((not (eq (car mouse) start-event-frame))
 228                  nil)
 229                 ((null (car (cdr mouse)))
 230                  nil)
 231                 (t
 232                  (setq y (cdr (cdr mouse))
 233                        edges (window-edges)
 234                        top (nth 1 edges)
 235                        bot (nth 3 edges))
 236                  ;; scale back a move that would make the
 237                  ;; window too short.
 238                  (cond ((< (- y top -1) window-min-height)
 239                         (setq y (+ top window-min-height -1))))
 240                  ;; compute size change needed
 241                  (setq growth (- y bot -1)
 242                        wconfig (current-window-configuration))
 243                  ;; grow/shrink minibuffer?
 244                  (if should-enlarge-minibuffer
 245                      (progn
 246                        ;; yes.  briefly select minibuffer so
 247                        ;; enlarge-window will affect the
 248                        ;; correct window.
 249                        (select-window minibuffer)
 250                        ;; scale back shrinkage if it would
 251                        ;; make the minibuffer less than 1
 252                        ;; line tall.
 253                        (if (and (> growth 0)
 254                                 (< (- (window-height minibuffer)
 255                                       growth)
 256                                    1))
 257                            (setq growth (1- (window-height minibuffer))))
 258                        (enlarge-window (- growth))
 259                        (select-window start-event-window))
 260                    ;; no.  grow/shrink the selected window
 261                    (enlarge-window growth))
 262                  ;; if this window's growth caused another
 263                  ;; window to be deleted because it was too
 264                  ;; short, rescind the change.
 265                  ;;
 266                  ;; if size change caused space to be stolen
 267                  ;; from a window above this one, rescind the
 268                  ;; change, but only if we didn't grow/srhink
 269                  ;; the minibuffer.  minibuffer size changes
 270                  ;; can cause all windows to shrink... no way
 271                  ;; around it.
 272                  (if (or (/= start-nwindows (count-windows t))
 273                          (and (not should-enlarge-minibuffer)
 274                               (/= top (nth 1 (window-edges)))))
 275                      (set-window-configuration wconfig)))))))))
 276 \f
 277 (defun mouse-set-point (event)
 278   "Move point to the position clicked on with the mouse.
 279 This should be bound to a mouse click event type."
 280   (interactive "e")
 281   (mouse-minibuffer-check event)
 282   ;; Use event-end in case called from mouse-drag-region.
 283   ;; If EVENT is a click, event-end and event-start give same value.
 284   (let ((posn (event-end event)))
 285     (if (not (windowp (posn-window posn)))
 286         (error "Cursor not in text area of window"))
 287     (select-window (posn-window posn))
 288     (if (numberp (posn-point posn))
 289         (goto-char (posn-point posn)))))
 290
 291 (defun mouse-set-region (click)
 292   "Set the region to the text dragged over, and copy to kill ring.
 293 This should be bound to a mouse drag event."
 294   (interactive "e")
 295   (mouse-minibuffer-check click)
 296   (let ((posn (event-start click))
 297         (end (event-end click)))
 298     (select-window (posn-window posn))
 299     (if (numberp (posn-point posn))
 300         (goto-char (posn-point posn)))
 301     ;; If mark is highlighted, no need to bounce the cursor.
 302     (or (and transient-mark-mode
 303              (framep (selected-frame)))
 304         (sit-for 1))
 305     (push-mark)
 306     (set-mark (point))
 307     (if (numberp (posn-point end))
 308         (goto-char (posn-point end)))
 309     ;; Don't set this-command to kill-region, so that a following
 310     ;; C-w will not double the text in the kill ring.
 311     (let (this-command)
 312       (copy-region-as-kill (mark) (point)))))
 313
 314 (defvar mouse-scroll-delay 0.25
 315   "*The pause between scroll steps caused by mouse drags, in seconds.
 316 If you drag the mouse beyond the edge of a window, Emacs scrolls the
 317 window to bring the text beyond that edge into view, with a delay of
 318 this many seconds between scroll steps.  Scrolling stops when you move
 319 the mouse back into the window, or release the button.
 320 This variable's value may be non-integral.
 321 Setting this to zero causes Emacs to scroll as fast as it can.")
 322
 323 (defun mouse-scroll-subr (window jump &optional overlay start)
 324   "Scroll the window WINDOW, JUMP lines at a time, until new input arrives.
 325 If OVERLAY is an overlay, let it stretch from START to the far edge of
 326 the newly visible text.
 327 Upon exit, point is at the far edge of the newly visible text."
 328   (let ((opoint (point)))
 329     (while (progn
 330              (goto-char (window-start window))
 331              (if (not (zerop (vertical-motion jump window)))
 332                  (progn
 333                    (set-window-start window (point))
 334                    (if (natnump jump)
 335                        (progn
 336                          (goto-char (window-end window))
 337                          ;; window-end doesn't reflect the window's new
 338                          ;; start position until the next redisplay.  Hurrah.
 339                          (vertical-motion (1- jump) window))
 340                      (goto-char (window-start window)))
 341                    (if overlay
 342                        (move-overlay overlay start (point)))
 343                    ;; Now that we have scrolled WINDOW properly,
 344                    ;; put point back where it was for the redisplay
 345                    ;; so that we don't mess up the selected window.
 346                    (or (eq window (selected-window))
 347                        (goto-char opoint))
 348                    (sit-for mouse-scroll-delay)))))
 349     (or (eq window (selected-window))
 350         (goto-char opoint))))
 351
 352 (defvar mouse-drag-overlay (make-overlay 1 1))
 353 (overlay-put mouse-drag-overlay 'face 'region)
 354
 355 (defvar mouse-selection-click-count 0)
 356
 357 (defun mouse-drag-region (start-event)
 358   "Set the region to the text that the mouse is dragged over.
 359 Highlight the drag area as you move the mouse.
 360 This must be bound to a button-down mouse event.
 361 In Transient Mark mode, the highlighting remains once you
 362 release the mouse button.  Otherwise, it does not."
 363   (interactive "e")
 364   (mouse-minibuffer-check start-event)
 365   (let* ((start-posn (event-start start-event))
 366          (start-point (posn-point start-posn))
 367          (start-window (posn-window start-posn))
 368          (start-frame (window-frame start-window))
 369          (bounds (window-edges start-window))
 370          (top (nth 1 bounds))
 371          (bottom (if (window-minibuffer-p start-window)
 372                      (nth 3 bounds)
 373                    ;; Don't count the mode line.
 374                    (1- (nth 3 bounds))))
 375          (click-count (1- (event-click-count start-event))))
 376     (setq mouse-selection-click-count click-count)
 377     (mouse-set-point start-event)
 378     (let ((range (mouse-start-end start-point start-point click-count)))
 379       (move-overlay mouse-drag-overlay (car range) (nth 1 range)
 380                     (window-buffer start-window)))
 381     (deactivate-mark)
 382     (let (event end end-point)
 383       (track-mouse
 384         (while (progn
 385                  (setq event (read-event))
 386                  (or (mouse-movement-p event)
 387                      (eq (car-safe event) 'switch-frame)))
 388           (if (eq (car-safe event) 'switch-frame)
 389               nil
 390             (setq end (event-end event)
 391                   end-point (posn-point end))
 392
 393             (cond
 394              ;; Are we moving within the original window?
 395              ((and (eq (posn-window end) start-window)
 396                    (integer-or-marker-p end-point))
 397               (goto-char end-point)
 398               (let ((range (mouse-start-end start-point (point) click-count)))
 399                 (move-overlay mouse-drag-overlay (car range) (nth 1 range))))
 400
 401              (t
 402               (let ((mouse-row (cdr (cdr (mouse-position)))))
 403                 (cond
 404                  ((null mouse-row))
 405                  ((< mouse-row top)
 406                   (mouse-scroll-subr start-window (- mouse-row top)
 407                                      mouse-drag-overlay start-point))
 408                  ((>= mouse-row bottom)
 409                   (mouse-scroll-subr start-window (1+ (- mouse-row bottom))
 410                                      mouse-drag-overlay start-point)))))))))
 411       (if (consp event)
 412 ;;; When we scroll into the mode line or menu bar, or out of the window,
 413 ;;; we get events that don't fit these criteria.
 414 ;;;            (eq (get (event-basic-type event) 'event-kind) 'mouse-click)
 415 ;;;            (eq (posn-window (event-end event)) start-window)
 416 ;;;            (numberp (posn-point (event-end event)))
 417           (let ((fun (key-binding (vector (car event)))))
 418             (if (not (= (overlay-start mouse-drag-overlay)
 419                         (overlay-end mouse-drag-overlay)))
 420                 (let (last-command this-command)
 421                   (push-mark (overlay-start mouse-drag-overlay) t t)
 422                   (goto-char (overlay-end mouse-drag-overlay))
 423                   (copy-region-as-kill (point) (mark t)))
 424               (goto-char (overlay-end mouse-drag-overlay))
 425               (setq this-command 'mouse-set-point))))
 426       (delete-overlay mouse-drag-overlay))))
 427 \f
 428 ;; Commands to handle xterm-style multiple clicks.
 429
 430 (defun mouse-skip-word (dir)
 431   "Skip over word, over whitespace, or over identical punctuation.
 432 If DIR is positive skip forward; if negative, skip backward."
 433   (let* ((char (following-char))
 434          (syntax (char-to-string (char-syntax char))))
 435     (if (or (string= syntax "w") (string= syntax " "))
 436         (if (< dir 0)
 437             (skip-syntax-backward syntax)
 438           (skip-syntax-forward syntax))
 439       (if (< dir 0)
 440           (while (and (not (bobp)) (= (preceding-char) char))
 441             (forward-char -1))
 442         (while (and (not (eobp)) (= (following-char) char))
 443           (forward-char 1))))))
 444
 445 ;; Return a list of region bounds based on START and END according to MODE.
 446 ;; If MODE is 0 then set point to (min START END), mark to (max START END).
 447 ;; If MODE is 1 then set point to start of word at (min START END),
 448 ;; mark to end of word at (max START END).
 449 ;; If MODE is 2 then do the same for lines.
 450 (defun mouse-start-end (start end mode)
 451   (if (> start end)
 452       (let ((temp start))
 453         (setq start end
 454               end temp)))
 455   (setq mode (mod mode 3))
 456   (cond ((= mode 0)
 457          (list start end))
 458         ((and (= mode 1)
 459               (= start end)
 460               (char-after start)
 461               (= (char-syntax (char-after start)) ?\())
 462          (list start
 463                (save-excursion
 464                  (goto-char start)
 465                  (forward-sexp 1)
 466                  (point))))
 467         ((and (= mode 1)
 468               (= start end)
 469               (char-after start)
 470               (= (char-syntax (char-after start)) ?\)))
 471          (list (save-excursion
 472                  (goto-char (1+ start))
 473                  (backward-sexp 1)
 474                  (point))
 475                (1+ start)))
 476         ((= mode 1)
 477          (list (save-excursion
 478                  (goto-char start)
 479                  (mouse-skip-word -1)
 480                  (point))
 481                (save-excursion
 482                  (goto-char end)
 483                  (mouse-skip-word 1)
 484                  (point))))
 485         ((= mode 2)
 486          (list (save-excursion
 487                  (goto-char start)
 488                  (beginning-of-line 1)
 489                  (point))
 490                (save-excursion
 491                  (goto-char end)
 492                  (forward-line 1)
 493                  (point))))))
 494 \f
 495 ;; Subroutine: set the mark where CLICK happened,
 496 ;; but don't do anything else.
 497 (defun mouse-set-mark-fast (click)
 498   (mouse-minibuffer-check click)
 499   (let ((posn (event-start click)))
 500     (select-window (posn-window posn))
 501     (if (numberp (posn-point posn))
 502         (push-mark (posn-point posn) t t))))
 503
 504 ;; Momentarily show where the mark is, if highlighting doesn't show it.
 505 (defun mouse-show-mark ()
 506   (or transient-mark-mode
 507       (save-excursion
 508         (goto-char (mark t))
 509         (sit-for 1))))
 510
 511 (defun mouse-set-mark (click)
 512   "Set mark at the position clicked on with the mouse.
 513 Display cursor at that position for a second.
 514 This must be bound to a mouse click."
 515   (interactive "e")
 516   (mouse-minibuffer-check click)
 517   (select-window (posn-window (event-start click)))
 518   ;; We don't use save-excursion because that preserves the mark too.
 519   (let ((point-save (point)))
 520     (unwind-protect
 521         (progn (mouse-set-point click)
 522                (push-mark nil t t)
 523                (or transient-mark-mode
 524                    (sit-for 1)))
 525       (goto-char point-save))))
 526
 527 (defun mouse-kill (click)
 528   "Kill the region between point and the mouse click.
 529 The text is saved in the kill ring, as with \\[kill-region]."
 530   (interactive "e")
 531   (mouse-minibuffer-check click)
 532   (let* ((posn (event-start click))
 533          (click-posn (posn-point posn)))
 534     (select-window (posn-window posn))
 535     (if (numberp click-posn)
 536         (kill-region (min (point) click-posn)
 537                      (max (point) click-posn)))))
 538
 539 (defun mouse-yank-at-click (click arg)
 540   "Insert the last stretch of killed text at the position clicked on.
 541 Also move point to one end of the text thus inserted (normally the end).
 542 Prefix arguments are interpreted as with \\[yank].
 543 If `mouse-yank-at-point' is non-nil, insert at point
 544 regardless of where you click."
 545   (interactive "e\nP")
 546   (or mouse-yank-at-point (mouse-set-point click))
 547   (setq this-command 'yank)
 548   (yank arg))
 549
 550 (defun mouse-kill-ring-save (click)
 551   "Copy the region between point and the mouse click in the kill ring.
 552 This does not delete the region; it acts like \\[kill-ring-save]."
 553   (interactive "e")
 554   (mouse-set-mark-fast click)
 555   (let (this-command last-command)
 556     (kill-ring-save (point) (mark t)))
 557   (mouse-show-mark))
 558
 559 ;;; This function used to delete the text between point and the mouse
 560 ;;; whenever it was equal to the front of the kill ring, but some
 561 ;;; people found that confusing.
 562
 563 ;;; A list (TEXT START END), describing the text and position of the last
 564 ;;; invocation of mouse-save-then-kill.
 565 (defvar mouse-save-then-kill-posn nil)
 566
 567 (defun mouse-save-then-kill-delete-region (beg end)
 568   ;; We must make our own undo boundaries
 569   ;; because they happen automatically only for the current buffer.
 570   (undo-boundary)
 571   (if (or (= beg end) (eq buffer-undo-list t))
 572       ;; If we have no undo list in this buffer,
 573       ;; just delete.
 574       (delete-region beg end)
 575     ;; Delete, but make the undo-list entry share with the kill ring.
 576     ;; First, delete just one char, so in case buffer is being modified
 577     ;; for the first time, the undo list records that fact.
 578     (let (before-change-function after-change-function
 579           before-change-functions after-change-functions)
 580       (delete-region beg
 581                      (+ beg (if (> end beg) 1 -1))))
 582     (let ((buffer-undo-list buffer-undo-list))
 583       ;; Undo that deletion--but don't change the undo list!
 584       (let (before-change-function after-change-function
 585             before-change-functions after-change-functions)
 586         (primitive-undo 1 buffer-undo-list))
 587       ;; Now delete the rest of the specified region,
 588       ;; but don't record it.
 589       (setq buffer-undo-list t)
 590       (if (/= (length (car kill-ring)) (- (max end beg) (min end beg)))
 591           (error "Lossage in mouse-save-then-kill-delete-region"))
 592       (delete-region beg end))
 593     (let ((tail buffer-undo-list))
 594       ;; Search back in buffer-undo-list for the string
 595       ;; that came from deleting one character.
 596       (while (and tail (not (stringp (car (car tail)))))
 597         (setq tail (cdr tail)))
 598       ;; Replace it with an entry for the entire deleted text.
 599       (and tail
 600            (setcar tail (cons (car kill-ring) (min beg end))))))
 601   (undo-boundary))
 602
 603 (defun mouse-save-then-kill (click)
 604   "Save text to point in kill ring; the second time, kill the text.
 605 If the text between point and the mouse is the same as what's
 606 at the front of the kill ring, this deletes the text.
 607 Otherwise, it adds the text to the kill ring, like \\[kill-ring-save],
 608 which prepares for a second click to delete the text.
 609
 610 If you have selected words or lines, this command extends the
 611 selection through the word or line clicked on.  If you do this
 612 again in a different position, it extends the selection again.
 613 If you do this twice in the same position, the selection is killed."
 614   (interactive "e")
 615   (mouse-minibuffer-check click)
 616   (let ((click-posn (posn-point (event-start click)))
 617         ;; Don't let a subsequent kill command append to this one:
 618         ;; prevent setting this-command to kill-region.
 619         (this-command this-command))
 620     (if (> (mod mouse-selection-click-count 3) 0)
 621         (if (not (and (eq last-command 'mouse-save-then-kill)
 622                       (equal click-posn
 623                              (car (cdr-safe (cdr-safe mouse-save-then-kill-posn))))))
 624             ;; Find both ends of the object selected by this click.
 625             (let* ((range
 626                     (mouse-start-end click-posn click-posn
 627                                      mouse-selection-click-count)))
 628               ;; Move whichever end is closer to the click.
 629               ;; That's what xterm does, and it seems reasonable.
 630               (if (< (abs (- click-posn (mark t)))
 631                      (abs (- click-posn (point))))
 632                   (set-mark (car range))
 633                 (goto-char (nth 1 range)))
 634               ;; We have already put the old region in the kill ring.
 635               ;; Replace it with the extended region.
 636               ;; (It would be annoying to make a separate entry.)
 637               (kill-new (buffer-substring (point) (mark t)) t)
 638               ;; Arrange for a repeated mouse-3 to kill this region.
 639               (setq mouse-save-then-kill-posn
 640                     (list (car kill-ring) (point) click-posn))
 641               (mouse-show-mark))
 642           ;; If we click this button again without moving it,
 643           ;; that time kill.
 644           (mouse-save-then-kill-delete-region (point) (mark))
 645           (setq mouse-selection-click-count 0)
 646           (setq mouse-save-then-kill-posn nil))
 647       (if (and (eq last-command 'mouse-save-then-kill)
 648                mouse-save-then-kill-posn
 649                (eq (car mouse-save-then-kill-posn) (car kill-ring))
 650                (equal (cdr mouse-save-then-kill-posn) (list (point) click-posn)))
 651           ;; If this is the second time we've called
 652           ;; mouse-save-then-kill, delete the text from the buffer.
 653           (progn
 654             (mouse-save-then-kill-delete-region (point) (mark))
 655             ;; After we kill, another click counts as "the first time".
 656             (setq mouse-save-then-kill-posn nil))
 657         (if (or (and (eq last-command 'mouse-save-then-kill)
 658                      mouse-save-then-kill-posn)
 659                 (and mark-active transient-mark-mode)
 660                 (and (eq last-command 'mouse-drag-region)
 661                      (or mark-even-if-inactive
 662                          (not transient-mark-mode))))
 663             ;; We have a selection or suitable region, so adjust it.
 664             (let* ((posn (event-start click))
 665                    (new (posn-point posn)))
 666               (select-window (posn-window posn))
 667               (if (numberp new)
 668                   (progn
 669                     ;; Move whichever end of the region is closer to the click.
 670                     ;; That is what xterm does, and it seems reasonable.
 671                     (if (< (abs (- new (point))) (abs (- new (mark t))))
 672                         (goto-char new)
 673                       (set-mark new))
 674                     (setq deactivate-mark nil)))
 675               (kill-new (buffer-substring (point) (mark t)) t))
 676           ;; We just have point, so set mark here.
 677           (mouse-set-mark-fast click)
 678           (kill-ring-save (point) (mark t))
 679           (mouse-show-mark))
 680         (setq mouse-save-then-kill-posn
 681               (list (car kill-ring) (point) click-posn))))))
 682 \f
 683 (global-set-key [M-mouse-1] 'mouse-start-secondary)
 684 (global-set-key [M-drag-mouse-1] 'mouse-set-secondary)
 685 (global-set-key [M-down-mouse-1] 'mouse-drag-secondary)
 686 (global-set-key [M-mouse-3] 'mouse-secondary-save-then-kill)
 687 (global-set-key [M-mouse-2] 'mouse-yank-secondary)
 688
 689 ;; An overlay which records the current secondary selection
 690 ;; or else is deleted when there is no secondary selection.
 691 ;; May be nil.
 692 (defvar mouse-secondary-overlay nil)
 693
 694 (defvar mouse-secondary-click-count 0)
 695
 696 ;; A marker which records the specified first end for a secondary selection.
 697 ;; May be nil.
 698 (defvar mouse-secondary-start nil)
 699
 700 (defun mouse-start-secondary (click)
 701   "Set one end of the secondary selection to the position clicked on.
 702 Use \\[mouse-secondary-save-then-kill] to set the other end
 703 and complete the secondary selection."
 704   (interactive "e")
 705   (mouse-minibuffer-check click)
 706   (let ((posn (event-start click)))
 707     (save-excursion
 708       (set-buffer (window-buffer (posn-window posn)))
 709       ;; Cancel any preexisting secondary selection.
 710       (if mouse-secondary-overlay
 711           (delete-overlay mouse-secondary-overlay))
 712       (if (numberp (posn-point posn))
 713           (progn
 714             (or mouse-secondary-start
 715                 (setq mouse-secondary-start (make-marker)))
 716             (move-marker mouse-secondary-start (posn-point posn)))))))
 717
 718 (defun mouse-set-secondary (click)
 719   "Set the secondary selection to the text that the mouse is dragged over.
 720 This must be bound to a mouse drag event."
 721   (interactive "e")
 722   (mouse-minibuffer-check click)
 723   (let ((posn (event-start click))
 724         beg
 725         (end (event-end click)))
 726     (save-excursion
 727       (set-buffer (window-buffer (posn-window posn)))
 728       (if (numberp (posn-point posn))
 729           (setq beg (posn-point posn)))
 730       (if mouse-secondary-overlay
 731           (move-overlay mouse-secondary-overlay beg (posn-point end))
 732         (setq mouse-secondary-overlay (make-overlay beg (posn-point end))))
 733       (overlay-put mouse-secondary-overlay 'face 'secondary-selection))))
 734
 735 (defun mouse-drag-secondary (start-event)
 736   "Set the secondary selection to the text that the mouse is dragged over.
 737 Highlight the drag area as you move the mouse.
 738 This must be bound to a button-down mouse event."
 739   (interactive "e")
 740   (mouse-minibuffer-check start-event)
 741   (let* ((start-posn (event-start start-event))
 742          (start-point (posn-point start-posn))
 743          (start-window (posn-window start-posn))
 744          (start-frame (window-frame start-window))
 745          (bounds (window-edges start-window))
 746          (top (nth 1 bounds))
 747          (bottom (if (window-minibuffer-p start-window)
 748                      (nth 3 bounds)
 749                    ;; Don't count the mode line.
 750                    (1- (nth 3 bounds))))
 751          (click-count (1- (event-click-count start-event))))
 752     (save-excursion
 753       (set-buffer (window-buffer start-window))
 754       (setq mouse-secondary-click-count click-count)
 755       (or mouse-secondary-overlay
 756           (setq mouse-secondary-overlay
 757                 (make-overlay (point) (point))))
 758       (overlay-put mouse-secondary-overlay 'face 'secondary-selection)
 759       (if (> (mod click-count 3) 0)
 760           ;; Double or triple press: make an initial selection
 761           ;; of one word or line.
 762           (let ((range (mouse-start-end start-point start-point click-count)))
 763             (set-marker mouse-secondary-start nil)
 764             (move-overlay mouse-secondary-overlay 1 1
 765                           (window-buffer start-window))
 766             (move-overlay mouse-secondary-overlay (car range) (nth 1 range)
 767                           (window-buffer start-window)))
 768         ;; Single-press: cancel any preexisting secondary selection.
 769         (or mouse-secondary-start
 770             (setq mouse-secondary-start (make-marker)))
 771         (set-marker mouse-secondary-start start-point)
 772         (delete-overlay mouse-secondary-overlay))
 773       (let (event end end-point)
 774         (track-mouse
 775           (while (progn
 776                    (setq event (read-event))
 777                    (or (mouse-movement-p event)
 778                        (eq (car-safe event) 'switch-frame)))
 779
 780             (if (eq (car-safe event) 'switch-frame)
 781                 nil
 782               (setq end (event-end event)
 783                     end-point (posn-point end))
 784               (cond
 785                ;; Are we moving within the original window?
 786                ((and (eq (posn-window end) start-window)
 787                      (integer-or-marker-p end-point))
 788                 (let ((range (mouse-start-end start-point end-point
 789                                               click-count)))
 790                   (if (or (/= start-point end-point)
 791                           (null (marker-position mouse-secondary-start)))
 792                       (progn
 793                         (set-marker mouse-secondary-start nil)
 794                         (move-overlay mouse-secondary-overlay
 795                                       (car range) (nth 1 range))))))
 796                (t
 797                 (let ((mouse-row (cdr (cdr (mouse-position)))))
 798                   (cond
 799                    ((null mouse-row))
 800                    ((< mouse-row top)
 801                     (mouse-scroll-subr start-window (- mouse-row top)
 802                                        mouse-secondary-overlay start-point))
 803                    ((>= mouse-row bottom)
 804                     (mouse-scroll-subr start-window (1+ (- mouse-row bottom))
 805                                        mouse-secondary-overlay start-point)))))))))
 806
 807         (if (consp event)
 808 ;;;              (eq (get (event-basic-type event) 'event-kind) 'mouse-click)
 809 ;;;              (eq (posn-window (event-end event)) start-window)
 810 ;;;              (numberp (posn-point (event-end event)))
 811             (if (marker-position mouse-secondary-start)
 812                 (save-window-excursion
 813                   (delete-overlay mouse-secondary-overlay)
 814                   (x-set-selection 'SECONDARY nil)
 815                   (select-window start-window)
 816                   (save-excursion
 817                     (goto-char mouse-secondary-start)
 818                     (sit-for 1)))
 819               (x-set-selection
 820                'SECONDARY
 821                (buffer-substring (overlay-start mouse-secondary-overlay)
 822                                  (overlay-end mouse-secondary-overlay)))))))))
 823
 824 (defun mouse-yank-secondary (click)
 825   "Insert the secondary selection at the position clicked on.
 826 Move point to the end of the inserted text.
 827 If `mouse-yank-at-point' is non-nil, insert at point
 828 regardless of where you click."
 829   (interactive "e")
 830   (or mouse-yank-at-point (mouse-set-point click))
 831   (insert (x-get-selection 'SECONDARY)))
 832
 833 (defun mouse-kill-secondary ()
 834   "Kill the text in the secondary selection.
 835 This is intended more as a keyboard command than as a mouse command
 836 but it can work as either one.
 837
 838 The current buffer (in case of keyboard use), or the buffer clicked on,
 839 must be the one that the secondary selection is in.  This requirement
 840 is to prevent accidents."
 841   (interactive)
 842   (let* ((keys (this-command-keys))
 843          (click (elt keys (1- (length keys)))))
 844     (or (eq (overlay-buffer mouse-secondary-overlay)
 845             (if (listp click)
 846                 (window-buffer (posn-window (event-start click)))
 847               (current-buffer)))
 848         (error "Select or click on the buffer where the secondary selection is")))
 849   (save-excursion
 850     (set-buffer (overlay-buffer mouse-secondary-overlay))
 851     (kill-region (overlay-start mouse-secondary-overlay)
 852                  (overlay-end mouse-secondary-overlay)))
 853   (delete-overlay mouse-secondary-overlay)
 854   (x-set-selection 'SECONDARY nil)
 855   (setq mouse-secondary-overlay nil))
 856
 857 (defun mouse-secondary-save-then-kill (click)
 858   "Save text to point in kill ring; the second time, kill the text.
 859 You must use this in a buffer where you have recently done \\[mouse-start-secondary].
 860 If the text between where you did \\[mouse-start-secondary] and where
 861 you use this command matches the text at the front of the kill ring,
 862 this command deletes the text.
 863 Otherwise, it adds the text to the kill ring, like \\[kill-ring-save],
 864 which prepares for a second click with this command to delete the text.
 865
 866 If you have already made a secondary selection in that buffer,
 867 this command extends or retracts the selection to where you click.
 868 If you do this again in a different position, it extends or retracts
 869 again.  If you do this twice in the same position, it kills the selection."
 870   (interactive "e")
 871   (mouse-minibuffer-check click)
 872   (let ((posn (event-start click))
 873         (click-posn (posn-point (event-start click)))
 874         ;; Don't let a subsequent kill command append to this one:
 875         ;; prevent setting this-command to kill-region.
 876         (this-command this-command))
 877     (or (eq (window-buffer (posn-window posn))
 878             (or (and mouse-secondary-overlay
 879                      (overlay-buffer mouse-secondary-overlay))
 880                 (if mouse-secondary-start
 881                     (marker-buffer mouse-secondary-start))))
 882         (error "Wrong buffer"))
 883     (save-excursion
 884       (set-buffer (window-buffer (posn-window posn)))
 885       (if (> (mod mouse-secondary-click-count 3) 0)
 886           (if (not (and (eq last-command 'mouse-secondary-save-then-kill)
 887                         (equal click-posn
 888                                (car (cdr-safe (cdr-safe mouse-save-then-kill-posn))))))
 889               ;; Find both ends of the object selected by this click.
 890               (let* ((range
 891                       (mouse-start-end click-posn click-posn
 892                                        mouse-secondary-click-count)))
 893                 ;; Move whichever end is closer to the click.
 894                 ;; That's what xterm does, and it seems reasonable.
 895                 (if (< (abs (- click-posn (overlay-start mouse-secondary-overlay)))
 896                        (abs (- click-posn (overlay-end mouse-secondary-overlay))))
 897                     (move-overlay mouse-secondary-overlay (car range)
 898                                   (overlay-end mouse-secondary-overlay))
 899                   (move-overlay mouse-secondary-overlay
 900                                 (overlay-start mouse-secondary-overlay)
 901                                 (nth 1 range)))
 902                 ;; We have already put the old region in the kill ring.
 903                 ;; Replace it with the extended region.
 904                 ;; (It would be annoying to make a separate entry.)
 905                 (kill-new (buffer-substring
 906                            (overlay-start mouse-secondary-overlay)
 907                            (overlay-end mouse-secondary-overlay)) t)
 908                 ;; Arrange for a repeated mouse-3 to kill this region.
 909                 (setq mouse-save-then-kill-posn
 910                       (list (car kill-ring) (point) click-posn)))
 911             ;; If we click this button again without moving it,
 912             ;; that time kill.
 913             (progn
 914               (mouse-save-then-kill-delete-region
 915                (overlay-start mouse-secondary-overlay)
 916                (overlay-end mouse-secondary-overlay))
 917               (setq mouse-save-then-kill-posn nil)
 918               (setq mouse-secondary-click-count 0)
 919               (delete-overlay mouse-secondary-overlay)))
 920         (if (and (eq last-command 'mouse-secondary-save-then-kill)
 921                  mouse-save-then-kill-posn
 922                  (eq (car mouse-save-then-kill-posn) (car kill-ring))
 923                  (equal (cdr mouse-save-then-kill-posn) (list (point) click-posn)))
 924             ;; If this is the second time we've called
 925             ;; mouse-secondary-save-then-kill, delete the text from the buffer.
 926             (progn
 927               (mouse-save-then-kill-delete-region
 928                (overlay-start mouse-secondary-overlay)
 929                (overlay-end mouse-secondary-overlay))
 930               (setq mouse-save-then-kill-posn nil)
 931               (delete-overlay mouse-secondary-overlay))
 932           (if (overlay-start mouse-secondary-overlay)
 933               ;; We have a selection, so adjust it.
 934               (progn
 935                 (if (numberp click-posn)
 936                     (progn
 937                       ;; Move whichever end of the region is closer to the click.
 938                       ;; That is what xterm does, and it seems reasonable.
 939                       (if (< (abs (- click-posn (overlay-start mouse-secondary-overlay)))
 940                              (abs (- click-posn (overlay-end mouse-secondary-overlay))))
 941                           (move-overlay mouse-secondary-overlay click-posn
 942                                         (overlay-end mouse-secondary-overlay))
 943                         (move-overlay mouse-secondary-overlay
 944                                       (overlay-start mouse-secondary-overlay)
 945                                       click-posn))
 946                       (setq deactivate-mark nil)))
 947                 (if (eq last-command 'mouse-secondary-save-then-kill)
 948                     ;; If the front of the kill ring comes from
 949                     ;; an immediately previous use of this command,
 950                     ;; replace it with the extended region.
 951                     ;; (It would be annoying to make a separate entry.)
 952                     (kill-new (buffer-substring
 953                                (overlay-start mouse-secondary-overlay)
 954                                (overlay-end mouse-secondary-overlay)) t)
 955                   (copy-region-as-kill (overlay-start mouse-secondary-overlay)
 956                                        (overlay-end mouse-secondary-overlay))))
 957             (if mouse-secondary-start
 958                 ;; All we have is one end of a selection,
 959                 ;; so put the other end here.
 960                 (let ((start (+ 0 mouse-secondary-start)))
 961                   (kill-ring-save start click-posn)
 962                   (if mouse-secondary-overlay
 963                       (move-overlay mouse-secondary-overlay start click-posn)
 964                     (setq mouse-secondary-overlay (make-overlay start click-posn)))
 965                   (overlay-put mouse-secondary-overlay 'face 'secondary-selection))))
 966           (setq mouse-save-then-kill-posn
 967                 (list (car kill-ring) (point) click-posn))))
 968       (x-set-selection 'SECONDARY
 969                        (if (overlay-buffer mouse-secondary-overlay)
 970                            (buffer-substring
 971                             (overlay-start mouse-secondary-overlay)
 972                             (overlay-end mouse-secondary-overlay)))))))
 973 \f
 974 (defun mouse-buffer-menu (event)
 975   "Pop up a menu of buffers for selection with the mouse.
 976 This switches buffers in the window that you clicked on,
 977 and selects that window."
 978   (interactive "e")
 979   (mouse-minibuffer-check event)
 980   (let ((menu
 981          (list "Buffer Menu"
 982                (cons "Select Buffer"
 983                      (let ((tail (buffer-list))
 984                            (maxbuf 0)
 985                            head)
 986                        (while tail
 987                          (or (eq ?\ (aref (buffer-name (car tail)) 0))
 988                              (setq maxbuf
 989                                    (max maxbuf
 990                                         (length (buffer-name (car tail))))))
 991                          (setq tail (cdr tail)))
 992                        (setq tail (buffer-list))
 993                        (while tail
 994                          (let ((elt (car tail)))
 995                            (if (not (string-match "^ "
 996                                                   (buffer-name elt)))
 997                                (setq head (cons
 998                                            (cons
 999                                             (format
1000                                              (format "%%%ds  %%s%%s  %%s"
1001                                                      maxbuf)
1002                                              (buffer-name elt)
1003                                              (if (buffer-modified-p elt)
1004                                                  "*" " ")
1005                                              (save-excursion
1006                                                (set-buffer elt)
1007                                                (if buffer-read-only "%" " "))
1008                                              (or (buffer-file-name elt) ""))
1009                                             elt)
1010                                            head))))
1011                          (setq tail (cdr tail)))
1012                        (reverse head))))))
1013     (let ((buf (x-popup-menu event menu))
1014           (window (posn-window (event-start event))))
1015       (if buf
1016           (progn
1017             (or (framep window) (select-window window))
1018             (switch-to-buffer buf))))))
1019 \f
1020 ;;; These need to be rewritten for the new scroll bar implementation.
1021
1022 ;;;!! ;; Commands for the scroll bar.
1023 ;;;!!
1024 ;;;!! (defun mouse-scroll-down (click)
1025 ;;;!!   (interactive "@e")
1026 ;;;!!   (scroll-down (1+ (cdr (mouse-coords click)))))
1027 ;;;!!
1028 ;;;!! (defun mouse-scroll-up (click)
1029 ;;;!!   (interactive "@e")
1030 ;;;!!   (scroll-up (1+ (cdr (mouse-coords click)))))
1031 ;;;!!
1032 ;;;!! (defun mouse-scroll-down-full ()
1033 ;;;!!   (interactive "@")
1034 ;;;!!   (scroll-down nil))
1035 ;;;!!
1036 ;;;!! (defun mouse-scroll-up-full ()
1037 ;;;!!   (interactive "@")
1038 ;;;!!   (scroll-up nil))
1039 ;;;!!
1040 ;;;!! (defun mouse-scroll-move-cursor (click)
1041 ;;;!!   (interactive "@e")
1042 ;;;!!   (move-to-window-line (1+ (cdr (mouse-coords click)))))
1043 ;;;!!
1044 ;;;!! (defun mouse-scroll-absolute (event)
1045 ;;;!!   (interactive "@e")
1046 ;;;!!   (let* ((pos (car event))
1047 ;;;!!    (position (car pos))
1048 ;;;!!    (length (car (cdr pos))))
1049 ;;;!!     (if (<= length 0) (setq length 1))
1050 ;;;!!     (let* ((scale-factor (max 1 (/ length (/ 8000000 (buffer-size)))))
1051 ;;;!!      (newpos (* (/ (* (/ (buffer-size) scale-factor)
1052 ;;;!!                       position)
1053 ;;;!!                    length)
1054 ;;;!!                 scale-factor)))
1055 ;;;!!       (goto-char newpos)
1056 ;;;!!       (recenter '(4)))))
1057 ;;;!!
1058 ;;;!! (defun mouse-scroll-left (click)
1059 ;;;!!   (interactive "@e")
1060 ;;;!!   (scroll-left (1+ (car (mouse-coords click)))))
1061 ;;;!!
1062 ;;;!! (defun mouse-scroll-right (click)
1063 ;;;!!   (interactive "@e")
1064 ;;;!!   (scroll-right (1+ (car (mouse-coords click)))))
1065 ;;;!!
1066 ;;;!! (defun mouse-scroll-left-full ()
1067 ;;;!!   (interactive "@")
1068 ;;;!!   (scroll-left nil))
1069 ;;;!!
1070 ;;;!! (defun mouse-scroll-right-full ()
1071 ;;;!!   (interactive "@")
1072 ;;;!!   (scroll-right nil))
1073 ;;;!!
1074 ;;;!! (defun mouse-scroll-move-cursor-horizontally (click)
1075 ;;;!!   (interactive "@e")
1076 ;;;!!   (move-to-column (1+ (car (mouse-coords click)))))
1077 ;;;!!
1078 ;;;!! (defun mouse-scroll-absolute-horizontally (event)
1079 ;;;!!   (interactive "@e")
1080 ;;;!!   (let* ((pos (car event))
1081 ;;;!!    (position (car pos))
1082 ;;;!!    (length (car (cdr pos))))
1083 ;;;!!   (set-window-hscroll (selected-window) 33)))
1084 ;;;!!
1085 ;;;!! (global-set-key [scroll-bar mouse-1] 'mouse-scroll-up)
1086 ;;;!! (global-set-key [scroll-bar mouse-2] 'mouse-scroll-absolute)
1087 ;;;!! (global-set-key [scroll-bar mouse-3] 'mouse-scroll-down)
1088 ;;;!!
1089 ;;;!! (global-set-key [vertical-slider mouse-1] 'mouse-scroll-move-cursor)
1090 ;;;!! (global-set-key [vertical-slider mouse-2] 'mouse-scroll-move-cursor)
1091 ;;;!! (global-set-key [vertical-slider mouse-3] 'mouse-scroll-move-cursor)
1092 ;;;!!
1093 ;;;!! (global-set-key [thumbup mouse-1] 'mouse-scroll-up-full)
1094 ;;;!! (global-set-key [thumbup mouse-2] 'mouse-scroll-up-full)
1095 ;;;!! (global-set-key [thumbup mouse-3] 'mouse-scroll-up-full)
1096 ;;;!!
1097 ;;;!! (global-set-key [thumbdown mouse-1] 'mouse-scroll-down-full)
1098 ;;;!! (global-set-key [thumbdown mouse-2] 'mouse-scroll-down-full)
1099 ;;;!! (global-set-key [thumbdown mouse-3] 'mouse-scroll-down-full)
1100 ;;;!!
1101 ;;;!! (global-set-key [horizontal-scroll-bar mouse-1] 'mouse-scroll-left)
1102 ;;;!! (global-set-key [horizontal-scroll-bar mouse-2]
1103 ;;;!!           'mouse-scroll-absolute-horizontally)
1104 ;;;!! (global-set-key [horizontal-scroll-bar mouse-3] 'mouse-scroll-right)
1105 ;;;!!
1106 ;;;!! (global-set-key [horizontal-slider mouse-1]
1107 ;;;!!           'mouse-scroll-move-cursor-horizontally)
1108 ;;;!! (global-set-key [horizontal-slider mouse-2]
1109 ;;;!!           'mouse-scroll-move-cursor-horizontally)
1110 ;;;!! (global-set-key [horizontal-slider mouse-3]
1111 ;;;!!           'mouse-scroll-move-cursor-horizontally)
1112 ;;;!!
1113 ;;;!! (global-set-key [thumbleft mouse-1] 'mouse-scroll-left-full)
1114 ;;;!! (global-set-key [thumbleft mouse-2] 'mouse-scroll-left-full)
1115 ;;;!! (global-set-key [thumbleft mouse-3] 'mouse-scroll-left-full)
1116 ;;;!!
1117 ;;;!! (global-set-key [thumbright mouse-1] 'mouse-scroll-right-full)
1118 ;;;!! (global-set-key [thumbright mouse-2] 'mouse-scroll-right-full)
1119 ;;;!! (global-set-key [thumbright mouse-3] 'mouse-scroll-right-full)
1120 ;;;!!
1121 ;;;!! (global-set-key [horizontal-scroll-bar S-mouse-2]
1122 ;;;!!           'mouse-split-window-horizontally)
1123 ;;;!! (global-set-key [mode-line S-mouse-2]
1124 ;;;!!           'mouse-split-window-horizontally)
1125 ;;;!! (global-set-key [vertical-scroll-bar S-mouse-2]
1126 ;;;!!           'mouse-split-window)
1127 \f
1128 ;;;!! ;;;;
1129 ;;;!! ;;;; Here are experimental things being tested.  Mouse events
1130 ;;;!! ;;;; are of the form:
1131 ;;;!! ;;;;      ((x y) window screen-part key-sequence timestamp)
1132 ;;;!! ;;
1133 ;;;!! ;;;;
1134 ;;;!! ;;;; Dynamically track mouse coordinates
1135 ;;;!! ;;;;
1136 ;;;!! ;;
1137 ;;;!! ;;(defun track-mouse (event)
1138 ;;;!! ;;  "Track the coordinates, absolute and relative, of the mouse."
1139 ;;;!! ;;  (interactive "@e")
1140 ;;;!! ;;  (while mouse-grabbed
1141 ;;;!! ;;    (let* ((pos (read-mouse-position (selected-screen)))
1142 ;;;!! ;;           (abs-x (car pos))
1143 ;;;!! ;;           (abs-y (cdr pos))
1144 ;;;!! ;;           (relative-coordinate (coordinates-in-window-p
1145 ;;;!! ;;                                 (list (car pos) (cdr pos))
1146 ;;;!! ;;                                 (selected-window))))
1147 ;;;!! ;;      (if (consp relative-coordinate)
1148 ;;;!! ;;          (message "mouse: [%d %d], (%d %d)" abs-x abs-y
1149 ;;;!! ;;                   (car relative-coordinate)
1150 ;;;!! ;;                   (car (cdr relative-coordinate)))
1151 ;;;!! ;;        (message "mouse: [%d %d]" abs-x abs-y)))))
1152 ;;;!!
1153 ;;;!! ;;
1154 ;;;!! ;; Dynamically put a box around the line indicated by point
1155 ;;;!! ;;
1156 ;;;!! ;;
1157 ;;;!! ;;(require 'backquote)
1158 ;;;!! ;;
1159 ;;;!! ;;(defun mouse-select-buffer-line (event)
1160 ;;;!! ;;  (interactive "@e")
1161 ;;;!! ;;  (let ((relative-coordinate
1162 ;;;!! ;;         (coordinates-in-window-p (car event) (selected-window)))
1163 ;;;!! ;;        (abs-y (car (cdr (car event)))))
1164 ;;;!! ;;    (if (consp relative-coordinate)
1165 ;;;!! ;;        (progn
1166 ;;;!! ;;          (save-excursion
1167 ;;;!! ;;            (move-to-window-line (car (cdr relative-coordinate)))
1168 ;;;!! ;;            (x-draw-rectangle
1169 ;;;!! ;;             (selected-screen)
1170 ;;;!! ;;             abs-y 0
1171 ;;;!! ;;             (save-excursion
1172 ;;;!! ;;                 (move-to-window-line (car (cdr relative-coordinate)))
1173 ;;;!! ;;                 (end-of-line)
1174 ;;;!! ;;                 (push-mark nil t)
1175 ;;;!! ;;                 (beginning-of-line)
1176 ;;;!! ;;                 (- (region-end) (region-beginning))) 1))
1177 ;;;!! ;;          (sit-for 1)
1178 ;;;!! ;;          (x-erase-rectangle (selected-screen))))))
1179 ;;;!! ;;
1180 ;;;!! ;;(defvar last-line-drawn nil)
1181 ;;;!! ;;(defvar begin-delim "[^ \t]")
1182 ;;;!! ;;(defvar end-delim   "[^ \t]")
1183 ;;;!! ;;
1184 ;;;!! ;;(defun mouse-boxing (event)
1185 ;;;!! ;;  (interactive "@e")
1186 ;;;!! ;;  (save-excursion
1187 ;;;!! ;;    (let ((screen (selected-screen)))
1188 ;;;!! ;;      (while (= (x-mouse-events) 0)
1189 ;;;!! ;;        (let* ((pos (read-mouse-position screen))
1190 ;;;!! ;;               (abs-x (car pos))
1191 ;;;!! ;;               (abs-y (cdr pos))
1192 ;;;!! ;;               (relative-coordinate
1193 ;;;!! ;;                (coordinates-in-window-p (` ((, abs-x) (, abs-y)))
1194 ;;;!! ;;                                         (selected-window)))
1195 ;;;!! ;;               (begin-reg nil)
1196 ;;;!! ;;               (end-reg nil)
1197 ;;;!! ;;               (end-column nil)
1198 ;;;!! ;;               (begin-column nil))
1199 ;;;!! ;;          (if (and (consp relative-coordinate)
1200 ;;;!! ;;                   (or (not last-line-drawn)
1201 ;;;!! ;;                       (not (= last-line-drawn abs-y))))
1202 ;;;!! ;;              (progn
1203 ;;;!! ;;                (move-to-window-line (car (cdr relative-coordinate)))
1204 ;;;!! ;;                (if (= (following-char) 10)
1205 ;;;!! ;;                    ()
1206 ;;;!! ;;                  (progn
1207 ;;;!! ;;                    (setq begin-reg (1- (re-search-forward end-delim)))
1208 ;;;!! ;;                    (setq begin-column (1- (current-column)))
1209 ;;;!! ;;                    (end-of-line)
1210 ;;;!! ;;                    (setq end-reg (1+ (re-search-backward begin-delim)))
1211 ;;;!! ;;                    (setq end-column (1+ (current-column)))
1212 ;;;!! ;;                    (message "%s" (buffer-substring begin-reg end-reg))
1213 ;;;!! ;;                    (x-draw-rectangle screen
1214 ;;;!! ;;                                      (setq last-line-drawn abs-y)
1215 ;;;!! ;;                                      begin-column
1216 ;;;!! ;;                                      (- end-column begin-column) 1))))))))))
1217 ;;;!! ;;
1218 ;;;!! ;;(defun mouse-erase-box ()
1219 ;;;!! ;;  (interactive)
1220 ;;;!! ;;  (if last-line-drawn
1221 ;;;!! ;;      (progn
1222 ;;;!! ;;        (x-erase-rectangle (selected-screen))
1223 ;;;!! ;;        (setq last-line-drawn nil))))
1224 ;;;!!
1225 ;;;!! ;;; (defun test-x-rectangle ()
1226 ;;;!! ;;;   (use-local-mouse-map (setq rectangle-test-map (make-sparse-keymap)))
1227 ;;;!! ;;;   (define-key rectangle-test-map mouse-motion-button-left 'mouse-boxing)
1228 ;;;!! ;;;   (define-key rectangle-test-map mouse-button-left-up 'mouse-erase-box))
1229 ;;;!!
1230 ;;;!! ;;
1231 ;;;!! ;; Here is how to do double clicking in lisp.  About to change.
1232 ;;;!! ;;
1233 ;;;!!
1234 ;;;!! (defvar double-start nil)
1235 ;;;!! (defconst double-click-interval 300
1236 ;;;!!   "Max ticks between clicks")
1237 ;;;!!
1238 ;;;!! (defun double-down (event)
1239 ;;;!!   (interactive "@e")
1240 ;;;!!   (if double-start
1241 ;;;!!       (let ((interval (- (nth 4 event) double-start)))
1242 ;;;!!   (if (< interval double-click-interval)
1243 ;;;!!       (progn
1244 ;;;!!         (backward-up-list 1)
1245 ;;;!!         ;;      (message "Interval %d" interval)
1246 ;;;!!         (sleep-for 1)))
1247 ;;;!!   (setq double-start nil))
1248 ;;;!!     (setq double-start (nth 4 event))))
1249 ;;;!!
1250 ;;;!! (defun double-up (event)
1251 ;;;!!   (interactive "@e")
1252 ;;;!!   (and double-start
1253 ;;;!!        (> (- (nth 4 event ) double-start) double-click-interval)
1254 ;;;!!        (setq double-start nil)))
1255 ;;;!!
1256 ;;;!! ;;; (defun x-test-doubleclick ()
1257 ;;;!! ;;;   (use-local-mouse-map (setq doubleclick-test-map (make-sparse-keymap)))
1258 ;;;!! ;;;   (define-key doubleclick-test-map mouse-button-left 'double-down)
1259 ;;;!! ;;;   (define-key doubleclick-test-map mouse-button-left-up 'double-up))
1260 ;;;!!
1261 ;;;!! ;;
1262 ;;;!! ;; This scrolls while button is depressed.  Use preferable in scroll bar.
1263 ;;;!! ;;
1264 ;;;!!
1265 ;;;!! (defvar scrolled-lines 0)
1266 ;;;!! (defconst scroll-speed 1)
1267 ;;;!!
1268 ;;;!! (defun incr-scroll-down (event)
1269 ;;;!!   (interactive "@e")
1270 ;;;!!   (setq scrolled-lines 0)
1271 ;;;!!   (incremental-scroll scroll-speed))
1272 ;;;!!
1273 ;;;!! (defun incr-scroll-up (event)
1274 ;;;!!   (interactive "@e")
1275 ;;;!!   (setq scrolled-lines 0)
1276 ;;;!!   (incremental-scroll (- scroll-speed)))
1277 ;;;!!
1278 ;;;!! (defun incremental-scroll (n)
1279 ;;;!!   (while (= (x-mouse-events) 0)
1280 ;;;!!     (setq scrolled-lines (1+ (* scroll-speed scrolled-lines)))
1281 ;;;!!     (scroll-down n)
1282 ;;;!!     (sit-for 300 t)))
1283 ;;;!!
1284 ;;;!! (defun incr-scroll-stop (event)
1285 ;;;!!   (interactive "@e")
1286 ;;;!!   (message "Scrolled %d lines" scrolled-lines)
1287 ;;;!!   (setq scrolled-lines 0)
1288 ;;;!!   (sleep-for 1))
1289 ;;;!!
1290 ;;;!! ;;; (defun x-testing-scroll ()
1291 ;;;!! ;;;   (let ((scrolling-map (function mouse-vertical-scroll-bar-prefix)))
1292 ;;;!! ;;;     (define-key scrolling-map mouse-button-left 'incr-scroll-down)
1293 ;;;!! ;;;     (define-key scrolling-map mouse-button-right 'incr-scroll-up)
1294 ;;;!! ;;;     (define-key scrolling-map mouse-button-left-up 'incr-scroll-stop)
1295 ;;;!! ;;;     (define-key scrolling-map mouse-button-right-up 'incr-scroll-stop)))
1296 ;;;!!
1297 ;;;!! ;;
1298 ;;;!! ;; Some playthings suitable for picture mode?  They need work.
1299 ;;;!! ;;
1300 ;;;!!
1301 ;;;!! (defun mouse-kill-rectangle (event)
1302 ;;;!!   "Kill the rectangle between point and the mouse cursor."
1303 ;;;!!   (interactive "@e")
1304 ;;;!!   (let ((point-save (point)))
1305 ;;;!!     (save-excursion
1306 ;;;!!       (mouse-set-point event)
1307 ;;;!!       (push-mark nil t)
1308 ;;;!!       (if (> point-save (point))
1309 ;;;!!     (kill-rectangle (point) point-save)
1310 ;;;!!   (kill-rectangle point-save (point))))))
1311 ;;;!!
1312 ;;;!! (defun mouse-open-rectangle (event)
1313 ;;;!!   "Kill the rectangle between point and the mouse cursor."
1314 ;;;!!   (interactive "@e")
1315 ;;;!!   (let ((point-save (point)))
1316 ;;;!!     (save-excursion
1317 ;;;!!       (mouse-set-point event)
1318 ;;;!!       (push-mark nil t)
1319 ;;;!!       (if (> point-save (point))
1320 ;;;!!     (open-rectangle (point) point-save)
1321 ;;;!!   (open-rectangle point-save (point))))))
1322 ;;;!!
1323 ;;;!! ;; Must be a better way to do this.
1324 ;;;!!
1325 ;;;!! (defun mouse-multiple-insert (n char)
1326 ;;;!!   (while (> n 0)
1327 ;;;!!     (insert char)
1328 ;;;!!     (setq n (1- n))))
1329 ;;;!!
1330 ;;;!! ;; What this could do is not finalize until button was released.
1331 ;;;!!
1332 ;;;!! (defun mouse-move-text (event)
1333 ;;;!!   "Move text from point to cursor position, inserting spaces."
1334 ;;;!!   (interactive "@e")
1335 ;;;!!   (let* ((relative-coordinate
1336 ;;;!!     (coordinates-in-window-p (car event) (selected-window))))
1337 ;;;!!     (if (consp relative-coordinate)
1338 ;;;!!   (cond ((> (current-column) (car relative-coordinate))
1339 ;;;!!          (delete-char
1340 ;;;!!           (- (car relative-coordinate) (current-column))))
1341 ;;;!!         ((< (current-column) (car relative-coordinate))
1342 ;;;!!          (mouse-multiple-insert
1343 ;;;!!           (- (car relative-coordinate) (current-column)) " "))
1344 ;;;!!         ((= (current-column) (car relative-coordinate)) (ding))))))
1345 \f
1346 ;; Choose a completion with the mouse.
1347
1348 (defun mouse-choose-completion (event)
1349   "Click on an alternative in the `*Completions*' buffer to choose it."
1350   (interactive "e")
1351   (let ((buffer (window-buffer))
1352         choice
1353         base-size)
1354     (save-excursion
1355       (set-buffer (window-buffer (posn-window (event-start event))))
1356       (if completion-reference-buffer
1357           (setq buffer completion-reference-buffer))
1358       (setq base-size completion-base-size)
1359       (save-excursion
1360         (goto-char (posn-point (event-start event)))
1361         (let (beg end)
1362           (if (and (not (eobp)) (get-text-property (point) 'mouse-face))
1363               (setq end (point) beg (1+ (point))))
1364           (if (null beg)
1365               (error "No completion here"))
1366           (setq beg (previous-single-property-change beg 'mouse-face))
1367           (setq end (or (next-single-property-change end 'mouse-face)
1368                         (point-max)))
1369           (setq choice (buffer-substring beg end)))))
1370     (let ((owindow (selected-window)))
1371       (select-window (posn-window (event-start event)))
1372       (if (and (one-window-p t 'selected-frame)
1373                (window-dedicated-p (selected-window)))
1374           ;; This is a special buffer's frame
1375           (iconify-frame (selected-frame))
1376         (or (window-dedicated-p (selected-window))
1377             (bury-buffer)))
1378       (select-window owindow))
1379     (choose-completion-string choice buffer base-size)))
1380 \f
1381 ;; Font selection.
1382
1383 (defun font-menu-add-default ()
1384   (let* ((default (cdr (assq 'font (frame-parameters (selected-frame)))))
1385          (font-alist x-fixed-font-alist)
1386          (elt (or (assoc "Misc" font-alist) (nth 1 font-alist))))
1387     (if (assoc "Default" elt)
1388         (delete (assoc "Default" elt) elt))
1389     (setcdr elt
1390             (cons (list "Default"
1391                         (cdr (assq 'font (frame-parameters (selected-frame)))))
1392                   (cdr elt)))))
1393
1394 (defvar x-fixed-font-alist
1395   '("Font menu"
1396     ("Misc"
1397      ;; For these, we specify the pixel height and width.
1398      ("fixed" "fixed")
1399      ("6x10" "-misc-fixed-medium-r-normal--10-*-*-*-c-60-iso8859-1" "6x10")
1400      ("6x12"
1401       "-misc-fixed-medium-r-semicondensed--12-*-*-*-c-60-iso8859-1" "6x12")
1402      ("6x13"
1403       "-misc-fixed-medium-r-semicondensed--13-*-*-*-c-60-iso8859-1" "6x13")
1404      ("7x13" "-misc-fixed-medium-r-normal--13-*-*-*-c-70-iso8859-1" "7x13")
1405      ("7x14" "-misc-fixed-medium-r-normal--14-*-*-*-c-70-iso8859-1" "7x14")
1406      ("8x13" "-misc-fixed-medium-r-normal--13-*-*-*-c-80-iso8859-1" "8x13")
1407      ("9x15" "-misc-fixed-medium-r-normal--15-*-*-*-c-90-iso8859-1" "9x15")
1408      ("10x20" "-misc-fixed-medium-r-normal--20-*-*-*-c-100-iso8859-1" "10x20")
1409      ("11x18" "-misc-fixed-medium-r-normal--18-*-*-*-c-110-iso8859-1" "11x18")
1410      ("12x24" "-misc-fixed-medium-r-normal--24-*-*-*-c-120-iso8859-1" "12x24")
1411      ("")
1412      ("clean 5x8"
1413       "-schumacher-clean-medium-r-normal--8-*-*-*-c-50-iso8859-1")
1414      ("clean 6x8"
1415       "-schumacher-clean-medium-r-normal--8-*-*-*-c-60-iso8859-1")
1416      ("clean 8x8"
1417       "-schumacher-clean-medium-r-normal--8-*-*-*-c-80-iso8859-1")
1418      ("clean 8x10"
1419       "-schumacher-clean-medium-r-normal--10-*-*-*-c-80-iso8859-1")
1420      ("clean 8x14"
1421       "-schumacher-clean-medium-r-normal--14-*-*-*-c-80-iso8859-1")
1422      ("clean 8x16"
1423       "-schumacher-clean-medium-r-normal--16-*-*-*-c-80-iso8859-1")
1424      ("")
1425      ("sony 8x16" "-sony-fixed-medium-r-normal--16-*-*-*-c-80-iso8859-1"))
1426 ;;; We don't seem to have these; who knows what they are.
1427 ;;;    ("fg-18" "fg-18")
1428 ;;;    ("fg-25" "fg-25")
1429 ;;;    ("lucidasanstypewriter-12" "lucidasanstypewriter-12")
1430 ;;;    ("lucidasanstypewriter-bold-14" "lucidasanstypewriter-bold-14")
1431 ;;;    ("lucidasanstypewriter-bold-24" "lucidasanstypewriter-bold-24")
1432 ;;;    ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
1433 ;;;    ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
1434     ("Courier"
1435      ;; For these, we specify the point height.
1436      ("8" "-adobe-courier-medium-r-normal--*-80-*-*-m-*-iso8859-1")
1437      ("10" "-adobe-courier-medium-r-normal--*-100-*-*-m-*-iso8859-1")
1438      ("12" "-adobe-courier-medium-r-normal--*-120-*-*-m-*-iso8859-1")
1439      ("14" "-adobe-courier-medium-r-normal--*-140-*-*-m-*-iso8859-1")
1440      ("18" "-adobe-courier-medium-r-normal--*-180-*-*-m-*-iso8859-1")
1441      ("24" "-adobe-courier-medium-r-normal--*-240-*-*-m-*-iso8859-1")
1442      ("8 bold" "-adobe-courier-bold-r-normal--*-80-*-*-m-*-iso8859-1")
1443      ("10 bold" "-adobe-courier-bold-r-normal--*-100-*-*-m-*-iso8859-1")
1444      ("12 bold" "-adobe-courier-bold-r-normal--*-120-*-*-m-*-iso8859-1")
1445      ("14 bold" "-adobe-courier-bold-r-normal--*-140-*-*-m-*-iso8859-1")
1446      ("18 bold" "-adobe-courier-bold-r-normal--*-180-*-*-m-*-iso8859-1")
1447      ("24 bold" "-adobe-courier-bold-r-normal--*-240-*-*-m-*-iso8859-1")
1448      ("8 slant" "-adobe-courier-medium-o-normal--*-80-*-*-m-*-iso8859-1")
1449      ("10 slant" "-adobe-courier-medium-o-normal--*-100-*-*-m-*-iso8859-1")
1450      ("12 slant" "-adobe-courier-medium-o-normal--*-120-*-*-m-*-iso8859-1")
1451      ("14 slant" "-adobe-courier-medium-o-normal--*-140-*-*-m-*-iso8859-1")
1452      ("18 slant" "-adobe-courier-medium-o-normal--*-180-*-*-m-*-iso8859-1")
1453      ("24 slant" "-adobe-courier-medium-o-normal--*-240-*-*-m-*-iso8859-1")
1454      ("8 bold slant" "-adobe-courier-bold-o-normal--*-80-*-*-m-*-iso8859-1")
1455      ("10 bold slant" "-adobe-courier-bold-o-normal--*-100-*-*-m-*-iso8859-1")
1456      ("12 bold slant" "-adobe-courier-bold-o-normal--*-120-*-*-m-*-iso8859-1")
1457      ("14 bold slant" "-adobe-courier-bold-o-normal--*-140-*-*-m-*-iso8859-1")
1458      ("18 bold slant" "-adobe-courier-bold-o-normal--*-180-*-*-m-*-iso8859-1")
1459      ("24 bold slant" "-adobe-courier-bold-o-normal--*-240-*-*-m-*-iso8859-1"))
1460     )
1461   "X fonts suitable for use in Emacs.")
1462
1463 (defun mouse-set-font (&rest fonts)
1464   "Select an emacs font from a list of known good fonts"
1465   (interactive
1466    (x-popup-menu last-nonmenu-event x-fixed-font-alist))
1467   (if fonts
1468       (let (font)
1469         (while fonts
1470           (condition-case nil
1471               (progn
1472                 (set-default-font (car fonts))
1473                 (setq font (car fonts))
1474                 (setq fonts nil))
1475             (error
1476              (setq fonts (cdr fonts)))))
1477         (if (null font)
1478             (error "Font not found")))))
1479 \f
1480 ;;; Bindings for mouse commands.
1481
1482 (define-key global-map [down-mouse-1] 'mouse-drag-region)
1483 (global-set-key [mouse-1]       'mouse-set-point)
1484 (global-set-key [drag-mouse-1]  'mouse-set-region)
1485
1486 ;; These are tested for in mouse-drag-region.
1487 (global-set-key [double-mouse-1] 'mouse-set-point)
1488 (global-set-key [triple-mouse-1] 'mouse-set-point)
1489
1490 (global-set-key [mouse-2]       'mouse-yank-at-click)
1491 (global-set-key [mouse-3]       'mouse-save-then-kill)
1492
1493 ;; By binding these to down-going events, we let the user use the up-going
1494 ;; event to make the selection, saving a click.
1495 (global-set-key [C-down-mouse-1] 'mouse-buffer-menu)
1496 (global-set-key [C-down-mouse-2] 'mouse-set-font)
1497 (global-set-key [C-down-mouse-3] 'mouse-major-mode-menu)
1498
1499
1500 ;; Replaced with dragging mouse-1
1501 ;; (global-set-key [S-mouse-1]  'mouse-set-mark)
1502
1503 (global-set-key [mode-line mouse-1] 'mouse-select-window)
1504 (global-set-key [mode-line drag-mouse-1] 'mouse-select-window)
1505 (global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line)
1506 (global-set-key [mode-line mouse-2] 'mouse-delete-other-windows)
1507 (global-set-key [mode-line mouse-3] 'mouse-delete-window)
1508 (global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally)
1509 (global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically)
1510 (global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically)
1511
1512 (provide 'mouse)
1513
1514 ;;; mouse.el ends here