| 1 | ;;; mouse.el --- window system-independent mouse support |
| 2 | |
| 3 | ;; Copyright (C) 1993-1995, 1999-2011 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;; Maintainer: FSF |
| 6 | ;; Keywords: hardware, mouse |
| 7 | ;; Package: emacs |
| 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 3 of the License, or |
| 14 | ;; (at your option) 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. If not, see <http://www.gnu.org/licenses/>. |
| 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 | (defcustom mouse-yank-at-point nil |
| 40 | "If non-nil, mouse yank commands yank at point instead of at click." |
| 41 | :type 'boolean |
| 42 | :group 'mouse) |
| 43 | |
| 44 | (defcustom mouse-drag-copy-region nil |
| 45 | "If non-nil, copy to kill-ring upon mouse adjustments of the region. |
| 46 | |
| 47 | This affects `mouse-save-then-kill' (\\[mouse-save-then-kill]) in |
| 48 | addition to mouse drags." |
| 49 | :type 'boolean |
| 50 | :version "24.1" |
| 51 | :group 'mouse) |
| 52 | |
| 53 | (defcustom mouse-1-click-follows-link 450 |
| 54 | "Non-nil means that clicking Mouse-1 on a link follows the link. |
| 55 | |
| 56 | With the default setting, an ordinary Mouse-1 click on a link |
| 57 | performs the same action as Mouse-2 on that link, while a longer |
| 58 | Mouse-1 click \(hold down the Mouse-1 button for more than 450 |
| 59 | milliseconds) performs the original Mouse-1 binding \(which |
| 60 | typically sets point where you click the mouse). |
| 61 | |
| 62 | If value is an integer, the time elapsed between pressing and |
| 63 | releasing the mouse button determines whether to follow the link |
| 64 | or perform the normal Mouse-1 action (typically set point). |
| 65 | The absolute numeric value specifices the maximum duration of a |
| 66 | \"short click\" in milliseconds. A positive value means that a |
| 67 | short click follows the link, and a longer click performs the |
| 68 | normal action. A negative value gives the opposite behavior. |
| 69 | |
| 70 | If value is `double', a double click follows the link. |
| 71 | |
| 72 | Otherwise, a single Mouse-1 click unconditionally follows the link. |
| 73 | |
| 74 | Note that dragging the mouse never follows the link. |
| 75 | |
| 76 | This feature only works in modes that specifically identify |
| 77 | clickable text as links, so it may not work with some external |
| 78 | packages. See `mouse-on-link-p' for details." |
| 79 | :version "22.1" |
| 80 | :type '(choice (const :tag "Disabled" nil) |
| 81 | (const :tag "Double click" double) |
| 82 | (number :tag "Single click time limit" :value 450) |
| 83 | (other :tag "Single click" t)) |
| 84 | :group 'mouse) |
| 85 | |
| 86 | (defcustom mouse-1-click-in-non-selected-windows t |
| 87 | "If non-nil, a Mouse-1 click also follows links in non-selected windows. |
| 88 | |
| 89 | If nil, a Mouse-1 click on a link in a non-selected window performs |
| 90 | the normal mouse-1 binding, typically selects the window and sets |
| 91 | point at the click position." |
| 92 | :type 'boolean |
| 93 | :version "22.1" |
| 94 | :group 'mouse) |
| 95 | |
| 96 | |
| 97 | \f |
| 98 | ;; Provide a mode-specific menu on a mouse button. |
| 99 | |
| 100 | (defun popup-menu (menu &optional position prefix) |
| 101 | "Popup the given menu and call the selected option. |
| 102 | MENU can be a keymap, an easymenu-style menu or a list of keymaps as for |
| 103 | `x-popup-menu'. |
| 104 | POSITION can be a click event or ((XOFFSET YOFFSET) WINDOW) and defaults to |
| 105 | the current mouse position. |
| 106 | PREFIX is the prefix argument (if any) to pass to the command." |
| 107 | (let* ((map (cond |
| 108 | ((keymapp menu) menu) |
| 109 | ((and (listp menu) (keymapp (car menu))) menu) |
| 110 | (t (let* ((map (easy-menu-create-menu (car menu) (cdr menu))) |
| 111 | (filter (when (symbolp map) |
| 112 | (plist-get (get map 'menu-prop) :filter)))) |
| 113 | (if filter (funcall filter (symbol-function map)) map))))) |
| 114 | event cmd) |
| 115 | (unless position |
| 116 | (let ((mp (mouse-pixel-position))) |
| 117 | (setq position (list (list (cadr mp) (cddr mp)) (car mp))))) |
| 118 | ;; The looping behavior was taken from lmenu's popup-menu-popup |
| 119 | (while (and map (setq event |
| 120 | ;; map could be a prefix key, in which case |
| 121 | ;; we need to get its function cell |
| 122 | ;; definition. |
| 123 | (x-popup-menu position (indirect-function map)))) |
| 124 | ;; Strangely x-popup-menu returns a list. |
| 125 | ;; mouse-major-mode-menu was using a weird: |
| 126 | ;; (key-binding (apply 'vector (append '(menu-bar) menu-prefix events))) |
| 127 | (setq cmd |
| 128 | (if (and (not (keymapp map)) (listp map)) |
| 129 | ;; We were given a list of keymaps. Search them all |
| 130 | ;; in sequence until a first binding is found. |
| 131 | (let ((mouse-click (apply 'vector event)) |
| 132 | binding) |
| 133 | (while (and map (null binding)) |
| 134 | (setq binding (lookup-key (car map) mouse-click)) |
| 135 | (if (numberp binding) ; `too long' |
| 136 | (setq binding nil)) |
| 137 | (setq map (cdr map))) |
| 138 | binding) |
| 139 | ;; We were given a single keymap. |
| 140 | (lookup-key map (apply 'vector event)))) |
| 141 | ;; Clear out echoing, which perhaps shows a prefix arg. |
| 142 | (message "") |
| 143 | ;; Maybe try again but with the submap. |
| 144 | (setq map (if (keymapp cmd) cmd))) |
| 145 | ;; If the user did not cancel by refusing to select, |
| 146 | ;; and if the result is a command, run it. |
| 147 | (when (and (null map) (commandp cmd)) |
| 148 | (setq prefix-arg prefix) |
| 149 | ;; `setup-specified-language-environment', for instance, |
| 150 | ;; expects this to be set from a menu keymap. |
| 151 | (setq last-command-event (car (last event))) |
| 152 | ;; mouse-major-mode-menu was using `command-execute' instead. |
| 153 | (call-interactively cmd)))) |
| 154 | |
| 155 | (defun minor-mode-menu-from-indicator (indicator) |
| 156 | "Show menu for minor mode specified by INDICATOR. |
| 157 | Interactively, INDICATOR is read using completion. |
| 158 | If there is no menu defined for the minor mode, then create one with |
| 159 | items `Turn Off' and `Help'." |
| 160 | (interactive |
| 161 | (list (completing-read |
| 162 | "Minor mode indicator: " |
| 163 | (describe-minor-mode-completion-table-for-indicator)))) |
| 164 | (let* ((minor-mode (lookup-minor-mode-from-indicator indicator)) |
| 165 | (mm-fun (or (get minor-mode :minor-mode-function) minor-mode))) |
| 166 | (unless minor-mode (error "Cannot find minor mode for `%s'" indicator)) |
| 167 | (let* ((map (cdr-safe (assq minor-mode minor-mode-map-alist))) |
| 168 | (menu (and (keymapp map) (lookup-key map [menu-bar])))) |
| 169 | (setq menu |
| 170 | (if menu |
| 171 | (mouse-menu-non-singleton menu) |
| 172 | `(keymap |
| 173 | ,indicator |
| 174 | (turn-off menu-item "Turn Off minor mode" ,mm-fun) |
| 175 | (help menu-item "Help for minor mode" |
| 176 | (lambda () (interactive) |
| 177 | (describe-function ',mm-fun)))))) |
| 178 | (popup-menu menu)))) |
| 179 | |
| 180 | (defun mouse-minor-mode-menu (event) |
| 181 | "Show minor-mode menu for EVENT on minor modes area of the mode line." |
| 182 | (interactive "@e") |
| 183 | (let ((indicator (car (nth 4 (car (cdr event)))))) |
| 184 | (minor-mode-menu-from-indicator indicator))) |
| 185 | |
| 186 | (defun mouse-menu-major-mode-map () |
| 187 | (run-hooks 'activate-menubar-hook 'menu-bar-update-hook) |
| 188 | (let* (;; Keymap from which to inherit; may be null. |
| 189 | (ancestor (mouse-menu-non-singleton |
| 190 | (and (current-local-map) |
| 191 | (local-key-binding [menu-bar])))) |
| 192 | ;; Make a keymap in which our last command leads to a menu or |
| 193 | ;; default to the edit menu. |
| 194 | (newmap (if ancestor |
| 195 | (make-sparse-keymap (concat (format-mode-line mode-name) |
| 196 | " Mode")) |
| 197 | menu-bar-edit-menu)) |
| 198 | uniq) |
| 199 | (if ancestor |
| 200 | (set-keymap-parent newmap ancestor)) |
| 201 | newmap)) |
| 202 | |
| 203 | (defun mouse-menu-non-singleton (menubar) |
| 204 | "Return menu keybar MENUBAR, or a lone submenu inside it. |
| 205 | If MENUBAR defines exactly one submenu, return just that submenu. |
| 206 | Otherwise, return MENUBAR." |
| 207 | (if menubar |
| 208 | (let (submap) |
| 209 | (map-keymap |
| 210 | (lambda (k v) (setq submap (if submap t (cons k v)))) |
| 211 | (keymap-canonicalize menubar)) |
| 212 | (if (eq submap t) |
| 213 | menubar |
| 214 | (lookup-key menubar (vector (car submap))))))) |
| 215 | |
| 216 | (defun mouse-menu-bar-map () |
| 217 | "Return a keymap equivalent to the menu bar. |
| 218 | The contents are the items that would be in the menu bar whether or |
| 219 | not it is actually displayed." |
| 220 | (run-hooks 'activate-menubar-hook 'menu-bar-update-hook) |
| 221 | (let* ((local-menu (and (current-local-map) |
| 222 | (lookup-key (current-local-map) [menu-bar]))) |
| 223 | (global-menu (lookup-key global-map [menu-bar])) |
| 224 | ;; If a keymap doesn't have a prompt string (a lazy |
| 225 | ;; programmer didn't bother to provide one), create it and |
| 226 | ;; insert it into the keymap; each keymap gets its own |
| 227 | ;; prompt. This is required for non-toolkit versions to |
| 228 | ;; display non-empty menu pane names. |
| 229 | (minor-mode-menus |
| 230 | (mapcar |
| 231 | (lambda (menu) |
| 232 | (let* ((minor-mode (car menu)) |
| 233 | (menu (cdr menu)) |
| 234 | (title-or-map (cadr menu))) |
| 235 | (or (stringp title-or-map) |
| 236 | (setq menu |
| 237 | (cons 'keymap |
| 238 | (cons (concat |
| 239 | (capitalize (subst-char-in-string |
| 240 | ?- ?\s (symbol-name |
| 241 | minor-mode))) |
| 242 | " Menu") |
| 243 | (cdr menu))))) |
| 244 | menu)) |
| 245 | (minor-mode-key-binding [menu-bar]))) |
| 246 | (local-title-or-map (and local-menu (cadr local-menu))) |
| 247 | (global-title-or-map (cadr global-menu))) |
| 248 | (or (null local-menu) |
| 249 | (stringp local-title-or-map) |
| 250 | (setq local-menu (cons 'keymap |
| 251 | (cons (concat (format-mode-line mode-name) |
| 252 | " Mode Menu") |
| 253 | (cdr local-menu))))) |
| 254 | (or (stringp global-title-or-map) |
| 255 | (setq global-menu (cons 'keymap |
| 256 | (cons "Global Menu" |
| 257 | (cdr global-menu))))) |
| 258 | ;; Supplying the list is faster than making a new map. |
| 259 | ;; FIXME: We have a problem here: we have to use the global/local/minor |
| 260 | ;; so they're displayed in the expected order, but later on in the command |
| 261 | ;; loop, they're actually looked up in the opposite order. |
| 262 | (apply 'append |
| 263 | global-menu |
| 264 | local-menu |
| 265 | minor-mode-menus))) |
| 266 | |
| 267 | (defun mouse-major-mode-menu (event &optional prefix) |
| 268 | "Pop up a mode-specific menu of mouse commands. |
| 269 | Default to the Edit menu if the major mode doesn't define a menu." |
| 270 | (interactive "@e\nP") |
| 271 | (run-hooks 'activate-menubar-hook 'menu-bar-update-hook) |
| 272 | (popup-menu (mouse-menu-major-mode-map) event prefix)) |
| 273 | (make-obsolete 'mouse-major-mode-menu 'mouse-menu-major-mode-map "23.1") |
| 274 | |
| 275 | (defun mouse-popup-menubar (event prefix) |
| 276 | "Pop up a menu equivalent to the menu bar for keyboard EVENT with PREFIX. |
| 277 | The contents are the items that would be in the menu bar whether or |
| 278 | not it is actually displayed." |
| 279 | (interactive "@e \nP") |
| 280 | (run-hooks 'activate-menubar-hook 'menu-bar-update-hook) |
| 281 | (popup-menu (mouse-menu-bar-map) event prefix)) |
| 282 | (make-obsolete 'mouse-popup-menubar 'mouse-menu-bar-map "23.1") |
| 283 | |
| 284 | (defun mouse-popup-menubar-stuff (event prefix) |
| 285 | "Popup a menu like either `mouse-major-mode-menu' or `mouse-popup-menubar'. |
| 286 | Use the former if the menu bar is showing, otherwise the latter." |
| 287 | (interactive "@e\nP") |
| 288 | (run-hooks 'activate-menubar-hook 'menu-bar-update-hook) |
| 289 | (popup-menu |
| 290 | (if (zerop (or (frame-parameter nil 'menu-bar-lines) 0)) |
| 291 | (mouse-menu-bar-map) |
| 292 | (mouse-menu-major-mode-map)) |
| 293 | event prefix)) |
| 294 | (make-obsolete 'mouse-popup-menubar-stuff nil "23.1") |
| 295 | \f |
| 296 | ;; Commands that operate on windows. |
| 297 | |
| 298 | (defun mouse-minibuffer-check (event) |
| 299 | (let ((w (posn-window (event-start event)))) |
| 300 | (and (window-minibuffer-p w) |
| 301 | (not (minibuffer-window-active-p w)) |
| 302 | (error "Minibuffer window is not active"))) |
| 303 | ;; Give temporary modes such as isearch a chance to turn off. |
| 304 | (run-hooks 'mouse-leave-buffer-hook)) |
| 305 | |
| 306 | (defun mouse-delete-window (click) |
| 307 | "Delete the window you click on. |
| 308 | Do nothing if the frame has just one window. |
| 309 | This command must be bound to a mouse click." |
| 310 | (interactive "e") |
| 311 | (unless (one-window-p t) |
| 312 | (mouse-minibuffer-check click) |
| 313 | (delete-window (posn-window (event-start click))))) |
| 314 | |
| 315 | (defun mouse-select-window (click) |
| 316 | "Select the window clicked on; don't move point." |
| 317 | (interactive "e") |
| 318 | (mouse-minibuffer-check click) |
| 319 | (let ((oframe (selected-frame)) |
| 320 | (frame (window-frame (posn-window (event-start click))))) |
| 321 | (select-window (posn-window (event-start click))) |
| 322 | (raise-frame frame) |
| 323 | (select-frame frame) |
| 324 | (or (eq frame oframe) |
| 325 | (set-mouse-position (selected-frame) (1- (frame-width)) 0)))) |
| 326 | |
| 327 | (defun mouse-tear-off-window (click) |
| 328 | "Delete the window clicked on, and create a new frame displaying its buffer." |
| 329 | (interactive "e") |
| 330 | (mouse-minibuffer-check click) |
| 331 | (let* ((window (posn-window (event-start click))) |
| 332 | (buf (window-buffer window)) |
| 333 | (frame (make-frame))) |
| 334 | (select-frame frame) |
| 335 | (switch-to-buffer buf) |
| 336 | (delete-window window))) |
| 337 | |
| 338 | (defun mouse-delete-other-windows () |
| 339 | "Delete all windows except the one you click on." |
| 340 | (interactive "@") |
| 341 | (delete-other-windows)) |
| 342 | |
| 343 | (defun mouse-split-window-vertically (click) |
| 344 | "Select Emacs window mouse is on, then split it vertically in half. |
| 345 | The window is split at the line clicked on. |
| 346 | This command must be bound to a mouse click." |
| 347 | (interactive "@e") |
| 348 | (mouse-minibuffer-check click) |
| 349 | (let ((start (event-start click))) |
| 350 | (select-window (posn-window start)) |
| 351 | (let ((new-height (1+ (cdr (posn-col-row (event-end click))))) |
| 352 | (first-line window-min-height) |
| 353 | (last-line (- (window-height) window-min-height))) |
| 354 | (if (< last-line first-line) |
| 355 | (error "Window too short to split") |
| 356 | (split-window-vertically |
| 357 | (min (max new-height first-line) last-line)))))) |
| 358 | |
| 359 | (defun mouse-split-window-horizontally (click) |
| 360 | "Select Emacs window mouse is on, then split it horizontally in half. |
| 361 | The window is split at the column clicked on. |
| 362 | This command must be bound to a mouse click." |
| 363 | (interactive "@e") |
| 364 | (mouse-minibuffer-check click) |
| 365 | (let ((start (event-start click))) |
| 366 | (select-window (posn-window start)) |
| 367 | (let ((new-width (1+ (car (posn-col-row (event-end click))))) |
| 368 | (first-col window-min-width) |
| 369 | (last-col (- (window-width) window-min-width))) |
| 370 | (if (< last-col first-col) |
| 371 | (error "Window too narrow to split") |
| 372 | (split-window-horizontally |
| 373 | (min (max new-width first-col) last-col)))))) |
| 374 | |
| 375 | (defun mouse-drag-window-above (window) |
| 376 | "Return the (or a) window directly above WINDOW. |
| 377 | That means one whose bottom edge is at the same height as WINDOW's top edge." |
| 378 | (let ((start-top (nth 1 (window-edges window))) |
| 379 | (start-left (nth 0 (window-edges window))) |
| 380 | (start-right (nth 2 (window-edges window))) |
| 381 | (start-window window) |
| 382 | above-window) |
| 383 | (setq window (previous-window window 0)) |
| 384 | (while (and (not above-window) (not (eq window start-window))) |
| 385 | (let ((left (nth 0 (window-edges window))) |
| 386 | (right (nth 2 (window-edges window)))) |
| 387 | (when (and (= (+ (window-height window) (nth 1 (window-edges window))) |
| 388 | start-top) |
| 389 | (or (and (<= left start-left) (<= start-right right)) |
| 390 | (and (<= start-left left) (<= left start-right)) |
| 391 | (and (<= start-left right) (<= right start-right)))) |
| 392 | (setq above-window window))) |
| 393 | (setq window (previous-window window))) |
| 394 | above-window)) |
| 395 | |
| 396 | (defun mouse-drag-move-window-bottom (window growth) |
| 397 | "Move the bottom of WINDOW up or down by GROWTH lines. |
| 398 | Move it down if GROWTH is positive, or up if GROWTH is negative. |
| 399 | If this would make WINDOW too short, |
| 400 | shrink the window or windows above it to make room." |
| 401 | (condition-case nil |
| 402 | (adjust-window-trailing-edge window growth nil) |
| 403 | (error nil))) |
| 404 | |
| 405 | (defsubst mouse-drag-move-window-top (window growth) |
| 406 | "Move the top of WINDOW up or down by GROWTH lines. |
| 407 | Move it down if GROWTH is positive, or up if GROWTH is negative. |
| 408 | If this would make WINDOW too short, shrink the window or windows |
| 409 | above it to make room." |
| 410 | ;; Moving the top of WINDOW is actually moving the bottom of the |
| 411 | ;; window above. |
| 412 | (let ((window-above (mouse-drag-window-above window))) |
| 413 | (and window-above |
| 414 | (mouse-drag-move-window-bottom window-above (- growth))))) |
| 415 | |
| 416 | (defun mouse-drag-mode-line-1 (start-event mode-line-p) |
| 417 | "Change the height of a window by dragging on the mode or header line. |
| 418 | START-EVENT is the starting mouse-event of the drag action. |
| 419 | MODE-LINE-P non-nil means dragging a mode line; nil means a header line." |
| 420 | ;; Give temporary modes such as isearch a chance to turn off. |
| 421 | (run-hooks 'mouse-leave-buffer-hook) |
| 422 | (let* ((done nil) |
| 423 | (echo-keystrokes 0) |
| 424 | (start (event-start start-event)) |
| 425 | (start-event-window (posn-window start)) |
| 426 | (start-event-frame (window-frame start-event-window)) |
| 427 | (start-nwindows (count-windows t)) |
| 428 | (on-link (and mouse-1-click-follows-link |
| 429 | (or mouse-1-click-in-non-selected-windows |
| 430 | (eq (posn-window start) (selected-window))) |
| 431 | (mouse-on-link-p start))) |
| 432 | (minibuffer (frame-parameter nil 'minibuffer)) |
| 433 | should-enlarge-minibuffer event mouse y top bot edges wconfig growth) |
| 434 | (track-mouse |
| 435 | (progn |
| 436 | ;; if this is the bottommost ordinary window, then to |
| 437 | ;; move its modeline the minibuffer must be enlarged. |
| 438 | (setq should-enlarge-minibuffer |
| 439 | (and minibuffer |
| 440 | mode-line-p |
| 441 | (not (one-window-p t)) |
| 442 | (= (nth 1 (window-edges minibuffer)) |
| 443 | (nth 3 (window-edges start-event-window))))) |
| 444 | |
| 445 | ;; loop reading events and sampling the position of |
| 446 | ;; the mouse. |
| 447 | (while (not done) |
| 448 | (setq event (read-event) |
| 449 | mouse (mouse-position)) |
| 450 | |
| 451 | ;; do nothing if |
| 452 | ;; - there is a switch-frame event. |
| 453 | ;; - the mouse isn't in the frame that we started in |
| 454 | ;; - the mouse isn't in any Emacs frame |
| 455 | ;; drag if |
| 456 | ;; - there is a mouse-movement event |
| 457 | ;; - there is a scroll-bar-movement event |
| 458 | ;; (same as mouse movement for our purposes) |
| 459 | ;; quit if |
| 460 | ;; - there is a keyboard event or some other unknown event. |
| 461 | (cond ((not (consp event)) |
| 462 | (setq done t)) |
| 463 | |
| 464 | ((memq (car event) '(switch-frame select-window)) |
| 465 | nil) |
| 466 | |
| 467 | ((not (memq (car event) '(mouse-movement scroll-bar-movement))) |
| 468 | (when (consp event) |
| 469 | ;; Do not unread a drag-mouse-1 event since it will cause the |
| 470 | ;; selection of the window above when dragging the modeline |
| 471 | ;; above the selected window. |
| 472 | (unless (eq (car event) 'drag-mouse-1) |
| 473 | (push event unread-command-events))) |
| 474 | (setq done t)) |
| 475 | |
| 476 | ((not (eq (car mouse) start-event-frame)) |
| 477 | nil) |
| 478 | |
| 479 | ((null (car (cdr mouse))) |
| 480 | nil) |
| 481 | |
| 482 | (t |
| 483 | (setq y (cdr (cdr mouse)) |
| 484 | edges (window-edges start-event-window) |
| 485 | top (nth 1 edges) |
| 486 | bot (nth 3 edges)) |
| 487 | |
| 488 | ;; compute size change needed |
| 489 | (cond (mode-line-p |
| 490 | (setq growth (- y bot -1))) |
| 491 | (t ; header line |
| 492 | (when (< (- bot y) window-min-height) |
| 493 | (setq y (- bot window-min-height))) |
| 494 | ;; The window's top includes the header line! |
| 495 | (setq growth (- top y)))) |
| 496 | (setq wconfig (current-window-configuration)) |
| 497 | |
| 498 | ;; Check for an error case. |
| 499 | (when (and (/= growth 0) |
| 500 | (not minibuffer) |
| 501 | (one-window-p t)) |
| 502 | (error "Attempt to resize sole window")) |
| 503 | |
| 504 | ;; If we ever move, make sure we don't mistakenly treat |
| 505 | ;; some unexpected `mouse-1' final event as a sign that |
| 506 | ;; this whole drag was nothing more than a click. |
| 507 | (if (/= growth 0) (setq on-link nil)) |
| 508 | |
| 509 | ;; grow/shrink minibuffer? |
| 510 | (if should-enlarge-minibuffer |
| 511 | (unless resize-mini-windows |
| 512 | (mouse-drag-move-window-bottom start-event-window growth)) |
| 513 | ;; no. grow/shrink the selected window |
| 514 | ;(message "growth = %d" growth) |
| 515 | (if mode-line-p |
| 516 | (mouse-drag-move-window-bottom start-event-window growth) |
| 517 | (mouse-drag-move-window-top start-event-window growth))) |
| 518 | |
| 519 | ;; if this window's growth caused another |
| 520 | ;; window to be deleted because it was too |
| 521 | ;; short, rescind the change. |
| 522 | ;; |
| 523 | ;; if size change caused space to be stolen |
| 524 | ;; from a window above this one, rescind the |
| 525 | ;; change, but only if we didn't grow/shrink |
| 526 | ;; the minibuffer. minibuffer size changes |
| 527 | ;; can cause all windows to shrink... no way |
| 528 | ;; around it. |
| 529 | (when (or (/= start-nwindows (count-windows t)) |
| 530 | (and (not should-enlarge-minibuffer) |
| 531 | (> growth 0) |
| 532 | mode-line-p |
| 533 | (/= top |
| 534 | (nth 1 (window-edges |
| 535 | ;; Choose right window. |
| 536 | start-event-window))))) |
| 537 | (set-window-configuration wconfig))))) |
| 538 | |
| 539 | ;; Presumably if this was just a click, the last event should |
| 540 | ;; be `mouse-1', whereas if this did move the mouse, it should be |
| 541 | ;; a `drag-mouse-1'. In any case `on-link' would have been nulled |
| 542 | ;; above if there had been any significant mouse movement. |
| 543 | (when (and on-link (eq 'mouse-1 (car-safe event))) |
| 544 | (push (cons 'mouse-2 (cdr event)) unread-command-events)))))) |
| 545 | |
| 546 | (defun mouse-drag-mode-line (start-event) |
| 547 | "Change the height of a window by dragging on the mode line." |
| 548 | (interactive "e") |
| 549 | (mouse-drag-mode-line-1 start-event t)) |
| 550 | |
| 551 | (defun mouse-drag-header-line (start-event) |
| 552 | "Change the height of a window by dragging on the header line. |
| 553 | Windows whose header-lines are at the top of the frame cannot be |
| 554 | resized by dragging their header-line." |
| 555 | (interactive "e") |
| 556 | ;; Changing the window's size by dragging its header-line when the |
| 557 | ;; header-line is at the top of the frame is somewhat strange, |
| 558 | ;; because the header-line doesn't move, so don't do it. |
| 559 | (let* ((start (event-start start-event)) |
| 560 | (window (posn-window start)) |
| 561 | (frame (window-frame window)) |
| 562 | (first-window (frame-first-window frame))) |
| 563 | (unless (or (eq window first-window) |
| 564 | (= (nth 1 (window-edges window)) |
| 565 | (nth 1 (window-edges first-window)))) |
| 566 | (mouse-drag-mode-line-1 start-event nil)))) |
| 567 | |
| 568 | \f |
| 569 | (defun mouse-drag-vertical-line-rightward-window (window) |
| 570 | "Return a window that is immediately to the right of WINDOW, or nil." |
| 571 | (let ((bottom (nth 3 (window-inside-edges window))) |
| 572 | (left (nth 0 (window-inside-edges window))) |
| 573 | best best-right |
| 574 | (try (previous-window window))) |
| 575 | (while (not (eq try window)) |
| 576 | (let ((try-top (nth 1 (window-inside-edges try))) |
| 577 | (try-bottom (nth 3 (window-inside-edges try))) |
| 578 | (try-right (nth 2 (window-inside-edges try)))) |
| 579 | (if (and (< try-top bottom) |
| 580 | (>= try-bottom bottom) |
| 581 | (< try-right left) |
| 582 | (or (null best-right) (> try-right best-right))) |
| 583 | (setq best-right try-right best try))) |
| 584 | (setq try (previous-window try))) |
| 585 | best)) |
| 586 | |
| 587 | (defun mouse-drag-vertical-line (start-event) |
| 588 | "Change the width of a window by dragging on the vertical line." |
| 589 | (interactive "e") |
| 590 | ;; Give temporary modes such as isearch a chance to turn off. |
| 591 | (run-hooks 'mouse-leave-buffer-hook) |
| 592 | (let* ((done nil) |
| 593 | (echo-keystrokes 0) |
| 594 | (start-event-frame (window-frame (car (car (cdr start-event))))) |
| 595 | (start-event-window (car (car (cdr start-event)))) |
| 596 | event mouse x left right edges growth |
| 597 | (which-side |
| 598 | (or (cdr (assq 'vertical-scroll-bars (frame-parameters start-event-frame))) |
| 599 | 'right))) |
| 600 | (cond |
| 601 | ((one-window-p t) |
| 602 | (error "Attempt to resize sole ordinary window")) |
| 603 | ((and (eq which-side 'right) |
| 604 | (>= (nth 2 (window-inside-edges start-event-window)) |
| 605 | (frame-width start-event-frame))) |
| 606 | (error "Attempt to drag rightmost scrollbar")) |
| 607 | ((and (eq which-side 'left) |
| 608 | (= (nth 0 (window-inside-edges start-event-window)) 0)) |
| 609 | (error "Attempt to drag leftmost scrollbar"))) |
| 610 | (track-mouse |
| 611 | (progn |
| 612 | ;; loop reading events and sampling the position of |
| 613 | ;; the mouse. |
| 614 | (while (not done) |
| 615 | (setq event (read-event) |
| 616 | mouse (mouse-position)) |
| 617 | ;; do nothing if |
| 618 | ;; - there is a switch-frame event. |
| 619 | ;; - the mouse isn't in the frame that we started in |
| 620 | ;; - the mouse isn't in any Emacs frame |
| 621 | ;; drag if |
| 622 | ;; - there is a mouse-movement event |
| 623 | ;; - there is a scroll-bar-movement event |
| 624 | ;; (same as mouse movement for our purposes) |
| 625 | ;; quit if |
| 626 | ;; - there is a keyboard event or some other unknown event |
| 627 | ;; unknown event. |
| 628 | (cond ((integerp event) |
| 629 | (setq done t)) |
| 630 | ((memq (car event) '(switch-frame select-window)) |
| 631 | nil) |
| 632 | ((not (memq (car event) |
| 633 | '(mouse-movement scroll-bar-movement))) |
| 634 | (if (consp event) |
| 635 | (setq unread-command-events |
| 636 | (cons event unread-command-events))) |
| 637 | (setq done t)) |
| 638 | ((not (eq (car mouse) start-event-frame)) |
| 639 | nil) |
| 640 | ((null (car (cdr mouse))) |
| 641 | nil) |
| 642 | (t |
| 643 | (let ((window |
| 644 | ;; If the scroll bar is on the window's left, |
| 645 | ;; adjust the window on the left. |
| 646 | (if (eq which-side 'right) |
| 647 | start-event-window |
| 648 | (mouse-drag-vertical-line-rightward-window |
| 649 | start-event-window)))) |
| 650 | (setq x (- (car (cdr mouse)) |
| 651 | (if (eq which-side 'right) 0 2)) |
| 652 | edges (window-edges window) |
| 653 | left (nth 0 edges) |
| 654 | right (nth 2 edges)) |
| 655 | ;; scale back a move that would make the |
| 656 | ;; window too thin. |
| 657 | (if (< (- x left -1) window-min-width) |
| 658 | (setq x (+ left window-min-width -1))) |
| 659 | ;; compute size change needed |
| 660 | (setq growth (- x right -1)) |
| 661 | (condition-case nil |
| 662 | (adjust-window-trailing-edge window growth t) |
| 663 | (error nil)))))))))) |
| 664 | \f |
| 665 | (defun mouse-set-point (event) |
| 666 | "Move point to the position clicked on with the mouse. |
| 667 | This should be bound to a mouse click event type." |
| 668 | (interactive "e") |
| 669 | (mouse-minibuffer-check event) |
| 670 | ;; Use event-end in case called from mouse-drag-region. |
| 671 | ;; If EVENT is a click, event-end and event-start give same value. |
| 672 | (posn-set-point (event-end event))) |
| 673 | |
| 674 | (defvar mouse-last-region-beg nil) |
| 675 | (defvar mouse-last-region-end nil) |
| 676 | (defvar mouse-last-region-tick nil) |
| 677 | |
| 678 | (defun mouse-region-match () |
| 679 | "Return non-nil if there's an active region that was set with the mouse." |
| 680 | (and (mark t) mark-active |
| 681 | (eq mouse-last-region-beg (region-beginning)) |
| 682 | (eq mouse-last-region-end (region-end)) |
| 683 | (eq mouse-last-region-tick (buffer-modified-tick)))) |
| 684 | |
| 685 | (defun mouse-set-region (click) |
| 686 | "Set the region to the text dragged over, and copy to kill ring. |
| 687 | This should be bound to a mouse drag event." |
| 688 | (interactive "e") |
| 689 | (mouse-minibuffer-check click) |
| 690 | (select-window (posn-window (event-start click))) |
| 691 | (let ((beg (posn-point (event-start click))) |
| 692 | (end (posn-point (event-end click)))) |
| 693 | (and mouse-drag-copy-region (integerp beg) (integerp end) |
| 694 | ;; Don't set this-command to `kill-region', so a following |
| 695 | ;; C-w won't double the text in the kill ring. Ignore |
| 696 | ;; `last-command' so we don't append to a preceding kill. |
| 697 | (let (this-command last-command deactivate-mark) |
| 698 | (copy-region-as-kill beg end))) |
| 699 | (if (numberp beg) (goto-char beg)) |
| 700 | ;; On a text terminal, bounce the cursor. |
| 701 | (or transient-mark-mode |
| 702 | (window-system) |
| 703 | (sit-for 1)) |
| 704 | (push-mark) |
| 705 | (set-mark (point)) |
| 706 | (if (numberp end) (goto-char end)) |
| 707 | (mouse-set-region-1))) |
| 708 | |
| 709 | (defun mouse-set-region-1 () |
| 710 | ;; Set transient-mark-mode for a little while. |
| 711 | (unless (eq (car-safe transient-mark-mode) 'only) |
| 712 | (setq transient-mark-mode |
| 713 | (cons 'only |
| 714 | (unless (eq transient-mark-mode 'lambda) |
| 715 | transient-mark-mode)))) |
| 716 | (setq mouse-last-region-beg (region-beginning)) |
| 717 | (setq mouse-last-region-end (region-end)) |
| 718 | (setq mouse-last-region-tick (buffer-modified-tick))) |
| 719 | |
| 720 | (defcustom mouse-scroll-delay 0.25 |
| 721 | "The pause between scroll steps caused by mouse drags, in seconds. |
| 722 | If you drag the mouse beyond the edge of a window, Emacs scrolls the |
| 723 | window to bring the text beyond that edge into view, with a delay of |
| 724 | this many seconds between scroll steps. Scrolling stops when you move |
| 725 | the mouse back into the window, or release the button. |
| 726 | This variable's value may be non-integral. |
| 727 | Setting this to zero causes Emacs to scroll as fast as it can." |
| 728 | :type 'number |
| 729 | :group 'mouse) |
| 730 | |
| 731 | (defcustom mouse-scroll-min-lines 1 |
| 732 | "The minimum number of lines scrolled by dragging mouse out of window. |
| 733 | Moving the mouse out the top or bottom edge of the window begins |
| 734 | scrolling repeatedly. The number of lines scrolled per repetition |
| 735 | is normally equal to the number of lines beyond the window edge that |
| 736 | the mouse has moved. However, it always scrolls at least the number |
| 737 | of lines specified by this variable." |
| 738 | :type 'integer |
| 739 | :group 'mouse) |
| 740 | |
| 741 | (defun mouse-scroll-subr (window jump &optional overlay start) |
| 742 | "Scroll the window WINDOW, JUMP lines at a time, until new input arrives. |
| 743 | If OVERLAY is an overlay, let it stretch from START to the far edge of |
| 744 | the newly visible text. |
| 745 | Upon exit, point is at the far edge of the newly visible text." |
| 746 | (cond |
| 747 | ((and (> jump 0) (< jump mouse-scroll-min-lines)) |
| 748 | (setq jump mouse-scroll-min-lines)) |
| 749 | ((and (< jump 0) (< (- jump) mouse-scroll-min-lines)) |
| 750 | (setq jump (- mouse-scroll-min-lines)))) |
| 751 | (let ((opoint (point))) |
| 752 | (while (progn |
| 753 | (goto-char (window-start window)) |
| 754 | (if (not (zerop (vertical-motion jump window))) |
| 755 | (progn |
| 756 | (set-window-start window (point)) |
| 757 | (if (natnump jump) |
| 758 | (if (window-end window) |
| 759 | (progn |
| 760 | (goto-char (window-end window)) |
| 761 | ;; window-end doesn't reflect the window's new |
| 762 | ;; start position until the next redisplay. |
| 763 | (vertical-motion (1- jump) window)) |
| 764 | (vertical-motion (- (window-height window) 2))) |
| 765 | (goto-char (window-start window))) |
| 766 | (if overlay |
| 767 | (move-overlay overlay start (point))) |
| 768 | ;; Now that we have scrolled WINDOW properly, |
| 769 | ;; put point back where it was for the redisplay |
| 770 | ;; so that we don't mess up the selected window. |
| 771 | (or (eq window (selected-window)) |
| 772 | (goto-char opoint)) |
| 773 | (sit-for mouse-scroll-delay))))) |
| 774 | (or (eq window (selected-window)) |
| 775 | (goto-char opoint)))) |
| 776 | |
| 777 | (defvar mouse-selection-click-count 0) |
| 778 | |
| 779 | (defvar mouse-selection-click-count-buffer nil) |
| 780 | |
| 781 | (defun mouse-drag-region (start-event) |
| 782 | "Set the region to the text that the mouse is dragged over. |
| 783 | Highlight the drag area as you move the mouse. |
| 784 | This must be bound to a button-down mouse event. |
| 785 | In Transient Mark mode, the highlighting remains as long as the mark |
| 786 | remains active. Otherwise, it remains until the next input event. |
| 787 | |
| 788 | If the click is in the echo area, display the `*Messages*' buffer." |
| 789 | (interactive "e") |
| 790 | (let ((w (posn-window (event-start start-event)))) |
| 791 | (if (and (window-minibuffer-p w) |
| 792 | (not (minibuffer-window-active-p w))) |
| 793 | (save-excursion |
| 794 | ;; Swallow the up-event. |
| 795 | (read-event) |
| 796 | (set-buffer (get-buffer-create "*Messages*")) |
| 797 | (goto-char (point-max)) |
| 798 | (display-buffer (current-buffer))) |
| 799 | ;; Give temporary modes such as isearch a chance to turn off. |
| 800 | (run-hooks 'mouse-leave-buffer-hook) |
| 801 | (mouse-drag-track start-event t)))) |
| 802 | |
| 803 | |
| 804 | (defun mouse-posn-property (pos property) |
| 805 | "Look for a property at click position. |
| 806 | POS may be either a buffer position or a click position like |
| 807 | those returned from `event-start'. If the click position is on |
| 808 | a string, the text property PROPERTY is examined. |
| 809 | If this is nil or the click is not on a string, then |
| 810 | the corresponding buffer position is searched for PROPERTY. |
| 811 | If PROPERTY is encountered in one of those places, |
| 812 | its value is returned." |
| 813 | (if (consp pos) |
| 814 | (let ((w (posn-window pos)) (pt (posn-point pos)) |
| 815 | (str (posn-string pos))) |
| 816 | (or (and str |
| 817 | (get-text-property (cdr str) property (car str))) |
| 818 | (and pt |
| 819 | (get-char-property pt property w)))) |
| 820 | (get-char-property pos property))) |
| 821 | |
| 822 | (defun mouse-on-link-p (pos) |
| 823 | "Return non-nil if POS is on a link in the current buffer. |
| 824 | POS must be a buffer position in the current buffer or a mouse |
| 825 | event location in the selected window (see `event-start'). |
| 826 | However, if `mouse-1-click-in-non-selected-windows' is non-nil, |
| 827 | POS may be a mouse event location in any window. |
| 828 | |
| 829 | A clickable link is identified by one of the following methods: |
| 830 | |
| 831 | - If the character at POS has a non-nil `follow-link' text or |
| 832 | overlay property, the value of that property determines what to do. |
| 833 | |
| 834 | - If there is a local key-binding or a keybinding at position POS |
| 835 | for the `follow-link' event, the binding of that event determines |
| 836 | what to do. |
| 837 | |
| 838 | The resulting value determine whether POS is inside a link: |
| 839 | |
| 840 | - If the value is `mouse-face', POS is inside a link if there |
| 841 | is a non-nil `mouse-face' property at POS. Return t in this case. |
| 842 | |
| 843 | - If the value is a function, FUNC, POS is inside a link if |
| 844 | the call \(FUNC POS) returns non-nil. Return the return value |
| 845 | from that call. Arg is \(posn-point POS) if POS is a mouse event. |
| 846 | |
| 847 | - Otherwise, return the value itself. |
| 848 | |
| 849 | The return value is interpreted as follows: |
| 850 | |
| 851 | - If it is a string, the mouse-1 event is translated into the |
| 852 | first character of the string, i.e. the action of the mouse-1 |
| 853 | click is the local or global binding of that character. |
| 854 | |
| 855 | - If it is a vector, the mouse-1 event is translated into the |
| 856 | first element of that vector, i.e. the action of the mouse-1 |
| 857 | click is the local or global binding of that event. |
| 858 | |
| 859 | - Otherwise, the mouse-1 event is translated into a mouse-2 event |
| 860 | at the same position." |
| 861 | (let ((action |
| 862 | (and (or (not (consp pos)) |
| 863 | mouse-1-click-in-non-selected-windows |
| 864 | (eq (selected-window) (posn-window pos))) |
| 865 | (or (mouse-posn-property pos 'follow-link) |
| 866 | (key-binding [follow-link] nil t pos))))) |
| 867 | (cond |
| 868 | ((eq action 'mouse-face) |
| 869 | (and (mouse-posn-property pos 'mouse-face) t)) |
| 870 | ((functionp action) |
| 871 | ;; FIXME: This seems questionable if the click is not in a buffer. |
| 872 | ;; Should we instead decide that `action' takes a `posn'? |
| 873 | (if (consp pos) |
| 874 | (with-current-buffer (window-buffer (posn-window pos)) |
| 875 | (funcall action (posn-point pos))) |
| 876 | (funcall action pos))) |
| 877 | (t action)))) |
| 878 | |
| 879 | (defun mouse-fixup-help-message (msg) |
| 880 | "Fix help message MSG for `mouse-1-click-follows-link'." |
| 881 | (let (mp pos) |
| 882 | (if (and mouse-1-click-follows-link |
| 883 | (stringp msg) |
| 884 | (string-match-p "\\`mouse-2" msg) |
| 885 | (setq mp (mouse-pixel-position)) |
| 886 | (consp (setq pos (cdr mp))) |
| 887 | (car pos) (>= (car pos) 0) |
| 888 | (cdr pos) (>= (cdr pos) 0) |
| 889 | (setq pos (posn-at-x-y (car pos) (cdr pos) (car mp))) |
| 890 | (windowp (posn-window pos))) |
| 891 | (with-current-buffer (window-buffer (posn-window pos)) |
| 892 | (if (mouse-on-link-p pos) |
| 893 | (setq msg (concat |
| 894 | (cond |
| 895 | ((eq mouse-1-click-follows-link 'double) "double-") |
| 896 | ((and (integerp mouse-1-click-follows-link) |
| 897 | (< mouse-1-click-follows-link 0)) "Long ") |
| 898 | (t "")) |
| 899 | "mouse-1" (substring msg 7))))))) |
| 900 | msg) |
| 901 | |
| 902 | (defun mouse-drag-track (start-event &optional |
| 903 | do-mouse-drag-region-post-process) |
| 904 | "Track mouse drags by highlighting area between point and cursor. |
| 905 | The region will be defined with mark and point. |
| 906 | DO-MOUSE-DRAG-REGION-POST-PROCESS should only be used by |
| 907 | `mouse-drag-region'." |
| 908 | (mouse-minibuffer-check start-event) |
| 909 | (setq mouse-selection-click-count-buffer (current-buffer)) |
| 910 | (deactivate-mark) |
| 911 | (let* ((original-window (selected-window)) |
| 912 | ;; We've recorded what we needed from the current buffer and |
| 913 | ;; window, now let's jump to the place of the event, where things |
| 914 | ;; are happening. |
| 915 | (_ (mouse-set-point start-event)) |
| 916 | (echo-keystrokes 0) |
| 917 | (start-posn (event-start start-event)) |
| 918 | (start-point (posn-point start-posn)) |
| 919 | (start-window (posn-window start-posn)) |
| 920 | (start-window-start (window-start start-window)) |
| 921 | (start-hscroll (window-hscroll start-window)) |
| 922 | (bounds (window-edges start-window)) |
| 923 | (make-cursor-line-fully-visible nil) |
| 924 | (top (nth 1 bounds)) |
| 925 | (bottom (if (window-minibuffer-p start-window) |
| 926 | (nth 3 bounds) |
| 927 | ;; Don't count the mode line. |
| 928 | (1- (nth 3 bounds)))) |
| 929 | (on-link (and mouse-1-click-follows-link |
| 930 | (or mouse-1-click-in-non-selected-windows |
| 931 | (eq start-window original-window)) |
| 932 | ;; Use start-point before the intangibility |
| 933 | ;; treatment, in case we click on a link inside an |
| 934 | ;; intangible text. |
| 935 | (mouse-on-link-p start-posn))) |
| 936 | (click-count (1- (event-click-count start-event))) |
| 937 | (remap-double-click (and on-link |
| 938 | (eq mouse-1-click-follows-link 'double) |
| 939 | (= click-count 1))) |
| 940 | ;; Suppress automatic hscrolling, because that is a nuisance |
| 941 | ;; when setting point near the right fringe (but see below). |
| 942 | (automatic-hscrolling-saved automatic-hscrolling) |
| 943 | (automatic-hscrolling nil) |
| 944 | event end end-point) |
| 945 | |
| 946 | (setq mouse-selection-click-count click-count) |
| 947 | ;; In case the down click is in the middle of some intangible text, |
| 948 | ;; use the end of that text, and put it in START-POINT. |
| 949 | (if (< (point) start-point) |
| 950 | (goto-char start-point)) |
| 951 | (setq start-point (point)) |
| 952 | (if remap-double-click |
| 953 | (setq click-count 0)) |
| 954 | |
| 955 | ;; Activate the region, using `mouse-start-end' to determine where |
| 956 | ;; to put point and mark (e.g., double-click will select a word). |
| 957 | (setq transient-mark-mode |
| 958 | (if (eq transient-mark-mode 'lambda) |
| 959 | '(only) |
| 960 | (cons 'only transient-mark-mode))) |
| 961 | (let ((range (mouse-start-end start-point start-point click-count))) |
| 962 | (push-mark (nth 0 range) t t) |
| 963 | (goto-char (nth 1 range))) |
| 964 | |
| 965 | ;; Track the mouse until we get a non-movement event. |
| 966 | (track-mouse |
| 967 | (while (progn |
| 968 | (setq event (read-event)) |
| 969 | (or (mouse-movement-p event) |
| 970 | (memq (car-safe event) '(switch-frame select-window)))) |
| 971 | (unless (memq (car-safe event) '(switch-frame select-window)) |
| 972 | ;; Automatic hscrolling did not occur during the call to |
| 973 | ;; `read-event'; but if the user subsequently drags the |
| 974 | ;; mouse, go ahead and hscroll. |
| 975 | (let ((automatic-hscrolling automatic-hscrolling-saved)) |
| 976 | (redisplay)) |
| 977 | (setq end (event-end event) |
| 978 | end-point (posn-point end)) |
| 979 | (if (and (eq (posn-window end) start-window) |
| 980 | (integer-or-marker-p end-point)) |
| 981 | (mouse--drag-set-mark-and-point start-point |
| 982 | end-point click-count) |
| 983 | (let ((mouse-row (cdr (cdr (mouse-position))))) |
| 984 | (cond |
| 985 | ((null mouse-row)) |
| 986 | ((< mouse-row top) |
| 987 | (mouse-scroll-subr start-window (- mouse-row top) |
| 988 | nil start-point)) |
| 989 | ((>= mouse-row bottom) |
| 990 | (mouse-scroll-subr start-window (1+ (- mouse-row bottom)) |
| 991 | nil start-point)))))))) |
| 992 | |
| 993 | ;; Handle the terminating event if possible. |
| 994 | (when (consp event) |
| 995 | ;; Ensure that point is on the end of the last event. |
| 996 | (when (and (setq end-point (posn-point (event-end event))) |
| 997 | (eq (posn-window end) start-window) |
| 998 | (integer-or-marker-p end-point) |
| 999 | (/= start-point end-point)) |
| 1000 | (mouse--drag-set-mark-and-point start-point |
| 1001 | end-point click-count)) |
| 1002 | |
| 1003 | ;; Find its binding. |
| 1004 | (let* ((fun (key-binding (vector (car event)))) |
| 1005 | (do-multi-click (and (> (event-click-count event) 0) |
| 1006 | (functionp fun) |
| 1007 | (not (memq fun '(mouse-set-point |
| 1008 | mouse-set-region)))))) |
| 1009 | (if (and (/= (mark) (point)) |
| 1010 | (not do-multi-click)) |
| 1011 | |
| 1012 | ;; If point has moved, finish the drag. |
| 1013 | (let* (last-command this-command) |
| 1014 | (and mouse-drag-copy-region |
| 1015 | do-mouse-drag-region-post-process |
| 1016 | (let (deactivate-mark) |
| 1017 | (copy-region-as-kill (mark) (point))))) |
| 1018 | |
| 1019 | ;; If point hasn't moved, run the binding of the |
| 1020 | ;; terminating up-event. |
| 1021 | (if do-multi-click |
| 1022 | (goto-char start-point) |
| 1023 | (deactivate-mark)) |
| 1024 | (when (and (functionp fun) |
| 1025 | (= start-hscroll (window-hscroll start-window)) |
| 1026 | ;; Don't run the up-event handler if the window |
| 1027 | ;; start changed in a redisplay after the |
| 1028 | ;; mouse-set-point for the down-mouse event at |
| 1029 | ;; the beginning of this function. When the |
| 1030 | ;; window start has changed, the up-mouse event |
| 1031 | ;; contains a different position due to the new |
| 1032 | ;; window contents, and point is set again. |
| 1033 | (or end-point |
| 1034 | (= (window-start start-window) |
| 1035 | start-window-start))) |
| 1036 | (when (and on-link |
| 1037 | (= start-point (point)) |
| 1038 | (mouse--remap-link-click-p start-event event)) |
| 1039 | ;; If we rebind to mouse-2, reselect previous selected |
| 1040 | ;; window, so that the mouse-2 event runs in the same |
| 1041 | ;; situation as if user had clicked it directly. Fixes |
| 1042 | ;; the bug reported by juri@jurta.org on 2005-12-27. |
| 1043 | (if (or (vectorp on-link) (stringp on-link)) |
| 1044 | (setq event (aref on-link 0)) |
| 1045 | (select-window original-window) |
| 1046 | (setcar event 'mouse-2) |
| 1047 | ;; If this mouse click has never been done by the |
| 1048 | ;; user, it doesn't have the necessary property to be |
| 1049 | ;; interpreted correctly. |
| 1050 | (put 'mouse-2 'event-kind 'mouse-click))) |
| 1051 | (push event unread-command-events))))))) |
| 1052 | |
| 1053 | (defun mouse--drag-set-mark-and-point (start click click-count) |
| 1054 | (let* ((range (mouse-start-end start click click-count)) |
| 1055 | (beg (nth 0 range)) |
| 1056 | (end (nth 1 range))) |
| 1057 | (cond ((eq (mark) beg) |
| 1058 | (goto-char end)) |
| 1059 | ((eq (mark) end) |
| 1060 | (goto-char beg)) |
| 1061 | ((< click (mark)) |
| 1062 | (set-mark end) |
| 1063 | (goto-char beg)) |
| 1064 | (t |
| 1065 | (set-mark beg) |
| 1066 | (goto-char end))))) |
| 1067 | |
| 1068 | (defun mouse--remap-link-click-p (start-event end-event) |
| 1069 | (or (and (eq mouse-1-click-follows-link 'double) |
| 1070 | (= (event-click-count start-event) 2)) |
| 1071 | (and |
| 1072 | (not (eq mouse-1-click-follows-link 'double)) |
| 1073 | (= (event-click-count start-event) 1) |
| 1074 | (= (event-click-count end-event) 1) |
| 1075 | (or (not (integerp mouse-1-click-follows-link)) |
| 1076 | (let ((t0 (posn-timestamp (event-start start-event))) |
| 1077 | (t1 (posn-timestamp (event-end end-event)))) |
| 1078 | (and (integerp t0) (integerp t1) |
| 1079 | (if (> mouse-1-click-follows-link 0) |
| 1080 | (<= (- t1 t0) mouse-1-click-follows-link) |
| 1081 | (< (- t0 t1) mouse-1-click-follows-link)))))))) |
| 1082 | |
| 1083 | \f |
| 1084 | ;; Commands to handle xterm-style multiple clicks. |
| 1085 | (defun mouse-skip-word (dir) |
| 1086 | "Skip over word, over whitespace, or over identical punctuation. |
| 1087 | If DIR is positive skip forward; if negative, skip backward." |
| 1088 | (let* ((char (following-char)) |
| 1089 | (syntax (char-to-string (char-syntax char)))) |
| 1090 | (cond ((string= syntax "w") |
| 1091 | ;; Here, we can't use skip-syntax-forward/backward because |
| 1092 | ;; they don't pay attention to word-separating-categories, |
| 1093 | ;; and thus they will skip over a true word boundary. So, |
| 1094 | ;; we simulate the original behavior by using forward-word. |
| 1095 | (if (< dir 0) |
| 1096 | (if (not (looking-at "\\<")) |
| 1097 | (forward-word -1)) |
| 1098 | (if (or (looking-at "\\<") (not (looking-at "\\>"))) |
| 1099 | (forward-word 1)))) |
| 1100 | ((string= syntax " ") |
| 1101 | (if (< dir 0) |
| 1102 | (skip-syntax-backward syntax) |
| 1103 | (skip-syntax-forward syntax))) |
| 1104 | ((string= syntax "_") |
| 1105 | (if (< dir 0) |
| 1106 | (skip-syntax-backward "w_") |
| 1107 | (skip-syntax-forward "w_"))) |
| 1108 | ((< dir 0) |
| 1109 | (while (and (not (bobp)) (= (preceding-char) char)) |
| 1110 | (forward-char -1))) |
| 1111 | (t |
| 1112 | (while (and (not (eobp)) (= (following-char) char)) |
| 1113 | (forward-char 1)))))) |
| 1114 | |
| 1115 | (defun mouse-start-end (start end mode) |
| 1116 | "Return a list of region bounds based on START and END according to MODE. |
| 1117 | If MODE is 0 then set point to (min START END), mark to (max START END). |
| 1118 | If MODE is 1 then set point to start of word at (min START END), |
| 1119 | mark to end of word at (max START END). |
| 1120 | If MODE is 2 then do the same for lines." |
| 1121 | (if (> start end) |
| 1122 | (let ((temp start)) |
| 1123 | (setq start end |
| 1124 | end temp))) |
| 1125 | (setq mode (mod mode 3)) |
| 1126 | (cond ((= mode 0) |
| 1127 | (list start end)) |
| 1128 | ((and (= mode 1) |
| 1129 | (= start end) |
| 1130 | (char-after start) |
| 1131 | (= (char-syntax (char-after start)) ?\()) |
| 1132 | (list start |
| 1133 | (save-excursion |
| 1134 | (goto-char start) |
| 1135 | (forward-sexp 1) |
| 1136 | (point)))) |
| 1137 | ((and (= mode 1) |
| 1138 | (= start end) |
| 1139 | (char-after start) |
| 1140 | (= (char-syntax (char-after start)) ?\))) |
| 1141 | (list (save-excursion |
| 1142 | (goto-char (1+ start)) |
| 1143 | (backward-sexp 1) |
| 1144 | (point)) |
| 1145 | (1+ start))) |
| 1146 | ((and (= mode 1) |
| 1147 | (= start end) |
| 1148 | (char-after start) |
| 1149 | (= (char-syntax (char-after start)) ?\")) |
| 1150 | (let ((open (or (eq start (point-min)) |
| 1151 | (save-excursion |
| 1152 | (goto-char (- start 1)) |
| 1153 | (looking-at "\\s(\\|\\s \\|\\s>"))))) |
| 1154 | (if open |
| 1155 | (list start |
| 1156 | (save-excursion |
| 1157 | (condition-case nil |
| 1158 | (progn |
| 1159 | (goto-char start) |
| 1160 | (forward-sexp 1) |
| 1161 | (point)) |
| 1162 | (error end)))) |
| 1163 | (list (save-excursion |
| 1164 | (condition-case nil |
| 1165 | (progn |
| 1166 | (goto-char (1+ start)) |
| 1167 | (backward-sexp 1) |
| 1168 | (point)) |
| 1169 | (error end))) |
| 1170 | (1+ start))))) |
| 1171 | ((= mode 1) |
| 1172 | (list (save-excursion |
| 1173 | (goto-char start) |
| 1174 | (mouse-skip-word -1) |
| 1175 | (point)) |
| 1176 | (save-excursion |
| 1177 | (goto-char end) |
| 1178 | (mouse-skip-word 1) |
| 1179 | (point)))) |
| 1180 | ((= mode 2) |
| 1181 | (list (save-excursion |
| 1182 | (goto-char start) |
| 1183 | (line-beginning-position 1)) |
| 1184 | (save-excursion |
| 1185 | (goto-char end) |
| 1186 | (forward-line 1) |
| 1187 | (point)))))) |
| 1188 | \f |
| 1189 | ;; Subroutine: set the mark where CLICK happened, |
| 1190 | ;; but don't do anything else. |
| 1191 | (defun mouse-set-mark-fast (click) |
| 1192 | (mouse-minibuffer-check click) |
| 1193 | (let ((posn (event-start click))) |
| 1194 | (select-window (posn-window posn)) |
| 1195 | (if (numberp (posn-point posn)) |
| 1196 | (push-mark (posn-point posn) t t)))) |
| 1197 | |
| 1198 | (defun mouse-undouble-last-event (events) |
| 1199 | (let* ((index (1- (length events))) |
| 1200 | (last (nthcdr index events)) |
| 1201 | (event (car last)) |
| 1202 | (basic (event-basic-type event)) |
| 1203 | (old-modifiers (event-modifiers event)) |
| 1204 | (modifiers (delq 'double (delq 'triple (copy-sequence old-modifiers)))) |
| 1205 | (new |
| 1206 | (if (consp event) |
| 1207 | ;; Use reverse, not nreverse, since event-modifiers |
| 1208 | ;; does not copy the list it returns. |
| 1209 | (cons (event-convert-list (reverse (cons basic modifiers))) |
| 1210 | (cdr event)) |
| 1211 | event))) |
| 1212 | (setcar last new) |
| 1213 | (if (and (not (equal modifiers old-modifiers)) |
| 1214 | (key-binding (apply 'vector events))) |
| 1215 | t |
| 1216 | (setcar last event) |
| 1217 | nil))) |
| 1218 | |
| 1219 | ;; Momentarily show where the mark is, if highlighting doesn't show it. |
| 1220 | |
| 1221 | (defun mouse-set-mark (click) |
| 1222 | "Set mark at the position clicked on with the mouse. |
| 1223 | Display cursor at that position for a second. |
| 1224 | This must be bound to a mouse click." |
| 1225 | (interactive "e") |
| 1226 | (mouse-minibuffer-check click) |
| 1227 | (select-window (posn-window (event-start click))) |
| 1228 | ;; We don't use save-excursion because that preserves the mark too. |
| 1229 | (let ((point-save (point))) |
| 1230 | (unwind-protect |
| 1231 | (progn (mouse-set-point click) |
| 1232 | (push-mark nil t t) |
| 1233 | (or transient-mark-mode |
| 1234 | (sit-for 1))) |
| 1235 | (goto-char point-save)))) |
| 1236 | |
| 1237 | (defun mouse-kill (click) |
| 1238 | "Kill the region between point and the mouse click. |
| 1239 | The text is saved in the kill ring, as with \\[kill-region]." |
| 1240 | (interactive "e") |
| 1241 | (mouse-minibuffer-check click) |
| 1242 | (let* ((posn (event-start click)) |
| 1243 | (click-posn (posn-point posn))) |
| 1244 | (select-window (posn-window posn)) |
| 1245 | (if (numberp click-posn) |
| 1246 | (kill-region (min (point) click-posn) |
| 1247 | (max (point) click-posn))))) |
| 1248 | |
| 1249 | (defun mouse-yank-at-click (click arg) |
| 1250 | "Insert the last stretch of killed text at the position clicked on. |
| 1251 | Also move point to one end of the text thus inserted (normally the end), |
| 1252 | and set mark at the beginning. |
| 1253 | Prefix arguments are interpreted as with \\[yank]. |
| 1254 | If `mouse-yank-at-point' is non-nil, insert at point |
| 1255 | regardless of where you click." |
| 1256 | (interactive "e\nP") |
| 1257 | ;; Give temporary modes such as isearch a chance to turn off. |
| 1258 | (run-hooks 'mouse-leave-buffer-hook) |
| 1259 | (when select-active-regions |
| 1260 | ;; Without this, confusing things happen upon e.g. inserting into |
| 1261 | ;; the middle of an active region. |
| 1262 | (deactivate-mark)) |
| 1263 | (or mouse-yank-at-point (mouse-set-point click)) |
| 1264 | (setq this-command 'yank) |
| 1265 | (setq mouse-selection-click-count 0) |
| 1266 | (yank arg)) |
| 1267 | |
| 1268 | (defun mouse-yank-primary (click) |
| 1269 | "Insert the primary selection at the position clicked on. |
| 1270 | Move point to the end of the inserted text. |
| 1271 | If `mouse-yank-at-point' is non-nil, insert at point |
| 1272 | regardless of where you click." |
| 1273 | (interactive "e") |
| 1274 | ;; Give temporary modes such as isearch a chance to turn off. |
| 1275 | (run-hooks 'mouse-leave-buffer-hook) |
| 1276 | ;; Without this, confusing things happen upon e.g. inserting into |
| 1277 | ;; the middle of an active region. |
| 1278 | (when select-active-regions |
| 1279 | (let (select-active-regions) |
| 1280 | (deactivate-mark))) |
| 1281 | (or mouse-yank-at-point (mouse-set-point click)) |
| 1282 | (let ((primary |
| 1283 | (cond |
| 1284 | ((eq system-type 'windows-nt) |
| 1285 | ;; MS-Windows emulates PRIMARY in x-get-selection, but not |
| 1286 | ;; in x-get-selection-value (the latter only accesses the |
| 1287 | ;; clipboard). So try PRIMARY first, in case they selected |
| 1288 | ;; something with the mouse in the current Emacs session. |
| 1289 | (or (x-get-selection 'PRIMARY) |
| 1290 | (x-get-selection-value))) |
| 1291 | ((fboundp 'x-get-selection-value) ; MS-DOS and X. |
| 1292 | ;; On X, x-get-selection-value supports more formats and |
| 1293 | ;; encodings, so use it in preference to x-get-selection. |
| 1294 | (or (x-get-selection-value) |
| 1295 | (x-get-selection 'PRIMARY))) |
| 1296 | ;; FIXME: What about xterm-mouse-mode etc.? |
| 1297 | (t |
| 1298 | (x-get-selection 'PRIMARY))))) |
| 1299 | (if primary |
| 1300 | (insert primary) |
| 1301 | (error "No selection is available")))) |
| 1302 | |
| 1303 | (defun mouse-kill-ring-save (click) |
| 1304 | "Copy the region between point and the mouse click in the kill ring. |
| 1305 | This does not delete the region; it acts like \\[kill-ring-save]." |
| 1306 | (interactive "e") |
| 1307 | (mouse-set-mark-fast click) |
| 1308 | (let (this-command last-command) |
| 1309 | (kill-ring-save (point) (mark t)))) |
| 1310 | |
| 1311 | ;; This function used to delete the text between point and the mouse |
| 1312 | ;; whenever it was equal to the front of the kill ring, but some |
| 1313 | ;; people found that confusing. |
| 1314 | |
| 1315 | ;; The position of the last invocation of `mouse-save-then-kill'. |
| 1316 | (defvar mouse-save-then-kill-posn nil) |
| 1317 | |
| 1318 | (defun mouse-save-then-kill-delete-region (beg end) |
| 1319 | ;; We must make our own undo boundaries |
| 1320 | ;; because they happen automatically only for the current buffer. |
| 1321 | (undo-boundary) |
| 1322 | (if (or (= beg end) (eq buffer-undo-list t)) |
| 1323 | ;; If we have no undo list in this buffer, |
| 1324 | ;; just delete. |
| 1325 | (delete-region beg end) |
| 1326 | ;; Delete, but make the undo-list entry share with the kill ring. |
| 1327 | ;; First, delete just one char, so in case buffer is being modified |
| 1328 | ;; for the first time, the undo list records that fact. |
| 1329 | (let (before-change-functions after-change-functions) |
| 1330 | (delete-region beg |
| 1331 | (+ beg (if (> end beg) 1 -1)))) |
| 1332 | (let ((buffer-undo-list buffer-undo-list)) |
| 1333 | ;; Undo that deletion--but don't change the undo list! |
| 1334 | (let (before-change-functions after-change-functions) |
| 1335 | (primitive-undo 1 buffer-undo-list)) |
| 1336 | ;; Now delete the rest of the specified region, |
| 1337 | ;; but don't record it. |
| 1338 | (setq buffer-undo-list t) |
| 1339 | (if (/= (length (car kill-ring)) (- (max end beg) (min end beg))) |
| 1340 | (error "Lossage in mouse-save-then-kill-delete-region")) |
| 1341 | (delete-region beg end)) |
| 1342 | (let ((tail buffer-undo-list)) |
| 1343 | ;; Search back in buffer-undo-list for the string |
| 1344 | ;; that came from deleting one character. |
| 1345 | (while (and tail (not (stringp (car (car tail))))) |
| 1346 | (setq tail (cdr tail))) |
| 1347 | ;; Replace it with an entry for the entire deleted text. |
| 1348 | (and tail |
| 1349 | (setcar tail (cons (car kill-ring) (min beg end)))))) |
| 1350 | (undo-boundary)) |
| 1351 | |
| 1352 | (defun mouse-save-then-kill (click) |
| 1353 | "Set the region according to CLICK; the second time, kill it. |
| 1354 | CLICK should be a mouse click event. |
| 1355 | |
| 1356 | If the region is inactive, activate it temporarily. Set mark at |
| 1357 | the original point, and move point to the position of CLICK. |
| 1358 | |
| 1359 | If the region is already active, adjust it. Normally, do this by |
| 1360 | moving point or mark, whichever is closer, to CLICK. But if you |
| 1361 | have selected whole words or lines, move point or mark to the |
| 1362 | word or line boundary closest to CLICK instead. |
| 1363 | |
| 1364 | If `mouse-drag-copy-region' is non-nil, this command also saves the |
| 1365 | new region to the kill ring (replacing the previous kill if the |
| 1366 | previous region was just saved to the kill ring). |
| 1367 | |
| 1368 | If this command is called a second consecutive time with the same |
| 1369 | CLICK position, kill the region (or delete it |
| 1370 | if `mouse-drag-copy-region' is non-nil)" |
| 1371 | (interactive "e") |
| 1372 | (mouse-minibuffer-check click) |
| 1373 | (let* ((posn (event-start click)) |
| 1374 | (click-pt (posn-point posn)) |
| 1375 | (window (posn-window posn)) |
| 1376 | (buf (window-buffer window)) |
| 1377 | ;; Don't let a subsequent kill command append to this one. |
| 1378 | (this-command this-command) |
| 1379 | ;; Check if the user has multi-clicked to select words/lines. |
| 1380 | (click-count |
| 1381 | (if (and (eq mouse-selection-click-count-buffer buf) |
| 1382 | (with-current-buffer buf (mark t))) |
| 1383 | mouse-selection-click-count |
| 1384 | 0))) |
| 1385 | (cond |
| 1386 | ((not (numberp click-pt)) nil) |
| 1387 | ;; If the user clicked without moving point, kill the region. |
| 1388 | ;; This also resets `mouse-selection-click-count'. |
| 1389 | ((and (eq last-command 'mouse-save-then-kill) |
| 1390 | (eq click-pt mouse-save-then-kill-posn) |
| 1391 | (eq window (selected-window))) |
| 1392 | (if mouse-drag-copy-region |
| 1393 | ;; Region already saved in the previous click; |
| 1394 | ;; don't make a duplicate entry, just delete. |
| 1395 | (delete-region (mark t) (point)) |
| 1396 | (kill-region (mark t) (point))) |
| 1397 | (setq mouse-selection-click-count 0) |
| 1398 | (setq mouse-save-then-kill-posn nil)) |
| 1399 | |
| 1400 | ;; Otherwise, if there is a suitable region, adjust it by moving |
| 1401 | ;; one end (whichever is closer) to CLICK-PT. |
| 1402 | ((or (with-current-buffer buf (region-active-p)) |
| 1403 | (and (eq window (selected-window)) |
| 1404 | (mark t) |
| 1405 | (or (and (eq last-command 'mouse-save-then-kill) |
| 1406 | mouse-save-then-kill-posn) |
| 1407 | (and (memq last-command '(mouse-drag-region |
| 1408 | mouse-set-region)) |
| 1409 | (or mark-even-if-inactive |
| 1410 | (not transient-mark-mode)))))) |
| 1411 | (select-window window) |
| 1412 | (let* ((range (mouse-start-end click-pt click-pt click-count))) |
| 1413 | (if (< (abs (- click-pt (mark t))) |
| 1414 | (abs (- click-pt (point)))) |
| 1415 | (set-mark (car range)) |
| 1416 | (goto-char (nth 1 range))) |
| 1417 | (setq deactivate-mark nil) |
| 1418 | (mouse-set-region-1) |
| 1419 | (when mouse-drag-copy-region |
| 1420 | ;; Region already copied to kill-ring once, so replace. |
| 1421 | (kill-new (filter-buffer-substring (mark t) (point)) t)) |
| 1422 | ;; Arrange for a repeated mouse-3 to kill the region. |
| 1423 | (setq mouse-save-then-kill-posn click-pt))) |
| 1424 | |
| 1425 | ;; Otherwise, set the mark where point is and move to CLICK-PT. |
| 1426 | (t |
| 1427 | (select-window window) |
| 1428 | (mouse-set-mark-fast click) |
| 1429 | (let ((before-scroll (with-current-buffer buf point-before-scroll))) |
| 1430 | (if before-scroll (goto-char before-scroll))) |
| 1431 | (exchange-point-and-mark) |
| 1432 | (mouse-set-region-1) |
| 1433 | (when mouse-drag-copy-region |
| 1434 | (kill-new (filter-buffer-substring (mark t) (point)))) |
| 1435 | (setq mouse-save-then-kill-posn click-pt))))) |
| 1436 | |
| 1437 | \f |
| 1438 | (global-set-key [M-mouse-1] 'mouse-start-secondary) |
| 1439 | (global-set-key [M-drag-mouse-1] 'mouse-set-secondary) |
| 1440 | (global-set-key [M-down-mouse-1] 'mouse-drag-secondary) |
| 1441 | (global-set-key [M-mouse-3] 'mouse-secondary-save-then-kill) |
| 1442 | (global-set-key [M-mouse-2] 'mouse-yank-secondary) |
| 1443 | |
| 1444 | (defconst mouse-secondary-overlay |
| 1445 | (let ((ol (make-overlay (point-min) (point-min)))) |
| 1446 | (delete-overlay ol) |
| 1447 | (overlay-put ol 'face 'secondary-selection) |
| 1448 | ol) |
| 1449 | "An overlay which records the current secondary selection. |
| 1450 | It is deleted when there is no secondary selection.") |
| 1451 | |
| 1452 | (defvar mouse-secondary-click-count 0) |
| 1453 | |
| 1454 | ;; A marker which records the specified first end for a secondary selection. |
| 1455 | ;; May be nil. |
| 1456 | (defvar mouse-secondary-start nil) |
| 1457 | |
| 1458 | (defun mouse-start-secondary (click) |
| 1459 | "Set one end of the secondary selection to the position clicked on. |
| 1460 | Use \\[mouse-secondary-save-then-kill] to set the other end |
| 1461 | and complete the secondary selection." |
| 1462 | (interactive "e") |
| 1463 | (mouse-minibuffer-check click) |
| 1464 | (let ((posn (event-start click))) |
| 1465 | (with-current-buffer (window-buffer (posn-window posn)) |
| 1466 | ;; Cancel any preexisting secondary selection. |
| 1467 | (delete-overlay mouse-secondary-overlay) |
| 1468 | (if (numberp (posn-point posn)) |
| 1469 | (progn |
| 1470 | (or mouse-secondary-start |
| 1471 | (setq mouse-secondary-start (make-marker))) |
| 1472 | (move-marker mouse-secondary-start (posn-point posn))))))) |
| 1473 | |
| 1474 | (defun mouse-set-secondary (click) |
| 1475 | "Set the secondary selection to the text that the mouse is dragged over. |
| 1476 | This must be bound to a mouse drag event." |
| 1477 | (interactive "e") |
| 1478 | (mouse-minibuffer-check click) |
| 1479 | (let ((posn (event-start click)) |
| 1480 | beg |
| 1481 | (end (event-end click))) |
| 1482 | (with-current-buffer (window-buffer (posn-window posn)) |
| 1483 | (if (numberp (posn-point posn)) |
| 1484 | (setq beg (posn-point posn))) |
| 1485 | (move-overlay mouse-secondary-overlay beg (posn-point end)) |
| 1486 | (x-set-selection |
| 1487 | 'SECONDARY |
| 1488 | (buffer-substring (overlay-start mouse-secondary-overlay) |
| 1489 | (overlay-end mouse-secondary-overlay)))))) |
| 1490 | |
| 1491 | (defun mouse-drag-secondary (start-event) |
| 1492 | "Set the secondary selection to the text that the mouse is dragged over. |
| 1493 | Highlight the drag area as you move the mouse. |
| 1494 | This must be bound to a button-down mouse event. |
| 1495 | The function returns a non-nil value if it creates a secondary selection." |
| 1496 | (interactive "e") |
| 1497 | (mouse-minibuffer-check start-event) |
| 1498 | (let* ((echo-keystrokes 0) |
| 1499 | (start-posn (event-start start-event)) |
| 1500 | (start-point (posn-point start-posn)) |
| 1501 | (start-window (posn-window start-posn)) |
| 1502 | (bounds (window-edges start-window)) |
| 1503 | (top (nth 1 bounds)) |
| 1504 | (bottom (if (window-minibuffer-p start-window) |
| 1505 | (nth 3 bounds) |
| 1506 | ;; Don't count the mode line. |
| 1507 | (1- (nth 3 bounds)))) |
| 1508 | (click-count (1- (event-click-count start-event)))) |
| 1509 | (with-current-buffer (window-buffer start-window) |
| 1510 | (setq mouse-secondary-click-count click-count) |
| 1511 | (if (> (mod click-count 3) 0) |
| 1512 | ;; Double or triple press: make an initial selection |
| 1513 | ;; of one word or line. |
| 1514 | (let ((range (mouse-start-end start-point start-point click-count))) |
| 1515 | (set-marker mouse-secondary-start nil) |
| 1516 | (move-overlay mouse-secondary-overlay (car range) (nth 1 range) |
| 1517 | (window-buffer start-window))) |
| 1518 | ;; Single-press: cancel any preexisting secondary selection. |
| 1519 | (or mouse-secondary-start |
| 1520 | (setq mouse-secondary-start (make-marker))) |
| 1521 | (set-marker mouse-secondary-start start-point) |
| 1522 | (delete-overlay mouse-secondary-overlay)) |
| 1523 | (let (event end end-point) |
| 1524 | (track-mouse |
| 1525 | (while (progn |
| 1526 | (setq event (read-event)) |
| 1527 | (or (mouse-movement-p event) |
| 1528 | (memq (car-safe event) '(switch-frame select-window)))) |
| 1529 | |
| 1530 | (if (memq (car-safe event) '(switch-frame select-window)) |
| 1531 | nil |
| 1532 | (setq end (event-end event) |
| 1533 | end-point (posn-point end)) |
| 1534 | (cond |
| 1535 | ;; Are we moving within the original window? |
| 1536 | ((and (eq (posn-window end) start-window) |
| 1537 | (integer-or-marker-p end-point)) |
| 1538 | (let ((range (mouse-start-end start-point end-point |
| 1539 | click-count))) |
| 1540 | (if (or (/= start-point end-point) |
| 1541 | (null (marker-position mouse-secondary-start))) |
| 1542 | (progn |
| 1543 | (set-marker mouse-secondary-start nil) |
| 1544 | (move-overlay mouse-secondary-overlay |
| 1545 | (car range) (nth 1 range)))))) |
| 1546 | (t |
| 1547 | (let ((mouse-row (cdr (cdr (mouse-position))))) |
| 1548 | (cond |
| 1549 | ((null mouse-row)) |
| 1550 | ((< mouse-row top) |
| 1551 | (mouse-scroll-subr start-window (- mouse-row top) |
| 1552 | mouse-secondary-overlay start-point)) |
| 1553 | ((>= mouse-row bottom) |
| 1554 | (mouse-scroll-subr start-window (1+ (- mouse-row bottom)) |
| 1555 | mouse-secondary-overlay start-point))))))))) |
| 1556 | |
| 1557 | (if (consp event) |
| 1558 | (if (marker-position mouse-secondary-start) |
| 1559 | (save-window-excursion |
| 1560 | (delete-overlay mouse-secondary-overlay) |
| 1561 | (x-set-selection 'SECONDARY nil) |
| 1562 | (select-window start-window) |
| 1563 | (save-excursion |
| 1564 | (goto-char mouse-secondary-start) |
| 1565 | (sit-for 1) |
| 1566 | nil)) |
| 1567 | (x-set-selection |
| 1568 | 'SECONDARY |
| 1569 | (buffer-substring (overlay-start mouse-secondary-overlay) |
| 1570 | (overlay-end mouse-secondary-overlay))))))))) |
| 1571 | |
| 1572 | (defun mouse-yank-secondary (click) |
| 1573 | "Insert the secondary selection at the position clicked on. |
| 1574 | Move point to the end of the inserted text. |
| 1575 | If `mouse-yank-at-point' is non-nil, insert at point |
| 1576 | regardless of where you click." |
| 1577 | (interactive "e") |
| 1578 | ;; Give temporary modes such as isearch a chance to turn off. |
| 1579 | (run-hooks 'mouse-leave-buffer-hook) |
| 1580 | (or mouse-yank-at-point (mouse-set-point click)) |
| 1581 | (let ((secondary (x-get-selection 'SECONDARY))) |
| 1582 | (if secondary |
| 1583 | (insert secondary) |
| 1584 | (error "No secondary selection")))) |
| 1585 | |
| 1586 | (defun mouse-kill-secondary () |
| 1587 | "Kill the text in the secondary selection. |
| 1588 | This is intended more as a keyboard command than as a mouse command |
| 1589 | but it can work as either one. |
| 1590 | |
| 1591 | The current buffer (in case of keyboard use), or the buffer clicked on, |
| 1592 | must be the one that the secondary selection is in. This requirement |
| 1593 | is to prevent accidents." |
| 1594 | (interactive) |
| 1595 | (let* ((keys (this-command-keys)) |
| 1596 | (click (elt keys (1- (length keys))))) |
| 1597 | (or (eq (overlay-buffer mouse-secondary-overlay) |
| 1598 | (if (listp click) |
| 1599 | (window-buffer (posn-window (event-start click))) |
| 1600 | (current-buffer))) |
| 1601 | (error "Select or click on the buffer where the secondary selection is"))) |
| 1602 | (let (this-command) |
| 1603 | (with-current-buffer (overlay-buffer mouse-secondary-overlay) |
| 1604 | (kill-region (overlay-start mouse-secondary-overlay) |
| 1605 | (overlay-end mouse-secondary-overlay)))) |
| 1606 | (delete-overlay mouse-secondary-overlay)) |
| 1607 | |
| 1608 | (defun mouse-secondary-save-then-kill (click) |
| 1609 | "Set the secondary selection and save it to the kill ring. |
| 1610 | The second time, kill it. CLICK should be a mouse click event. |
| 1611 | |
| 1612 | If you have not called `mouse-start-secondary' in the clicked |
| 1613 | buffer, activate the secondary selection and set it between point |
| 1614 | and the click position CLICK. |
| 1615 | |
| 1616 | Otherwise, adjust the bounds of the secondary selection. |
| 1617 | Normally, do this by moving its beginning or end, whichever is |
| 1618 | closer, to CLICK. But if you have selected whole words or lines, |
| 1619 | adjust to the word or line boundary closest to CLICK instead. |
| 1620 | |
| 1621 | If this command is called a second consecutive time with the same |
| 1622 | CLICK position, kill the secondary selection." |
| 1623 | (interactive "e") |
| 1624 | (mouse-minibuffer-check click) |
| 1625 | (let* ((posn (event-start click)) |
| 1626 | (click-pt (posn-point posn)) |
| 1627 | (window (posn-window posn)) |
| 1628 | (buf (window-buffer window)) |
| 1629 | ;; Don't let a subsequent kill command append to this one. |
| 1630 | (this-command this-command) |
| 1631 | ;; Check if the user has multi-clicked to select words/lines. |
| 1632 | (click-count |
| 1633 | (if (eq (overlay-buffer mouse-secondary-overlay) buf) |
| 1634 | mouse-secondary-click-count |
| 1635 | 0)) |
| 1636 | (beg (overlay-start mouse-secondary-overlay)) |
| 1637 | (end (overlay-end mouse-secondary-overlay))) |
| 1638 | |
| 1639 | (cond |
| 1640 | ((not (numberp click-pt)) nil) |
| 1641 | |
| 1642 | ;; If the secondary selection is not active in BUF, activate it. |
| 1643 | ((not (eq buf (or (overlay-buffer mouse-secondary-overlay) |
| 1644 | (if mouse-secondary-start |
| 1645 | (marker-buffer mouse-secondary-start))))) |
| 1646 | (select-window window) |
| 1647 | (setq mouse-secondary-start (make-marker)) |
| 1648 | (move-marker mouse-secondary-start (point)) |
| 1649 | (move-overlay mouse-secondary-overlay (point) click-pt buf) |
| 1650 | (kill-ring-save (point) click-pt)) |
| 1651 | |
| 1652 | ;; If the user clicked without moving point, delete the secondary |
| 1653 | ;; selection. This also resets `mouse-secondary-click-count'. |
| 1654 | ((and (eq last-command 'mouse-secondary-save-then-kill) |
| 1655 | (eq click-pt mouse-save-then-kill-posn) |
| 1656 | (eq window (selected-window))) |
| 1657 | (mouse-save-then-kill-delete-region beg end) |
| 1658 | (delete-overlay mouse-secondary-overlay) |
| 1659 | (setq mouse-secondary-click-count 0) |
| 1660 | (setq mouse-save-then-kill-posn nil)) |
| 1661 | |
| 1662 | ;; Otherwise, if there is a suitable secondary selection overlay, |
| 1663 | ;; adjust it by moving one end (whichever is closer) to CLICK-PT. |
| 1664 | ((and beg (eq buf (overlay-buffer mouse-secondary-overlay))) |
| 1665 | (let* ((range (mouse-start-end click-pt click-pt click-count))) |
| 1666 | (if (< (abs (- click-pt beg)) |
| 1667 | (abs (- click-pt end))) |
| 1668 | (move-overlay mouse-secondary-overlay (car range) end) |
| 1669 | (move-overlay mouse-secondary-overlay beg (nth 1 range)))) |
| 1670 | (setq deactivate-mark nil) |
| 1671 | (if (eq last-command 'mouse-secondary-save-then-kill) |
| 1672 | ;; If the front of the kill ring comes from an immediately |
| 1673 | ;; previous use of this command, replace the entry. |
| 1674 | (kill-new |
| 1675 | (buffer-substring (overlay-start mouse-secondary-overlay) |
| 1676 | (overlay-end mouse-secondary-overlay)) |
| 1677 | t) |
| 1678 | (let (deactivate-mark) |
| 1679 | (copy-region-as-kill (overlay-start mouse-secondary-overlay) |
| 1680 | (overlay-end mouse-secondary-overlay)))) |
| 1681 | (setq mouse-save-then-kill-posn click-pt)) |
| 1682 | |
| 1683 | ;; Otherwise, set the secondary selection overlay. |
| 1684 | (t |
| 1685 | (select-window window) |
| 1686 | (if mouse-secondary-start |
| 1687 | ;; All we have is one end of a selection, so put the other |
| 1688 | ;; end here. |
| 1689 | (let ((start (+ 0 mouse-secondary-start))) |
| 1690 | (kill-ring-save start click-pt) |
| 1691 | (move-overlay mouse-secondary-overlay start click-pt))) |
| 1692 | (setq mouse-save-then-kill-posn click-pt)))) |
| 1693 | |
| 1694 | ;; Finally, set the window system's secondary selection. |
| 1695 | (let (str) |
| 1696 | (and (overlay-buffer mouse-secondary-overlay) |
| 1697 | (setq str (buffer-substring (overlay-start mouse-secondary-overlay) |
| 1698 | (overlay-end mouse-secondary-overlay))) |
| 1699 | (> (length str) 0) |
| 1700 | (x-set-selection 'SECONDARY str)))) |
| 1701 | |
| 1702 | \f |
| 1703 | (defcustom mouse-buffer-menu-maxlen 20 |
| 1704 | "Number of buffers in one pane (submenu) of the buffer menu. |
| 1705 | If we have lots of buffers, divide them into groups of |
| 1706 | `mouse-buffer-menu-maxlen' and make a pane (or submenu) for each one." |
| 1707 | :type 'integer |
| 1708 | :group 'mouse) |
| 1709 | |
| 1710 | (defcustom mouse-buffer-menu-mode-mult 4 |
| 1711 | "Group the buffers by the major mode groups on \\[mouse-buffer-menu]? |
| 1712 | This number which determines (in a hairy way) whether \\[mouse-buffer-menu] |
| 1713 | will split the buffer menu by the major modes (see |
| 1714 | `mouse-buffer-menu-mode-groups') or just by menu length. |
| 1715 | Set to 1 (or even 0!) if you want to group by major mode always, and to |
| 1716 | a large number if you prefer a mixed multitude. The default is 4." |
| 1717 | :type 'integer |
| 1718 | :group 'mouse |
| 1719 | :version "20.3") |
| 1720 | |
| 1721 | (defvar mouse-buffer-menu-mode-groups |
| 1722 | (mapcar (lambda (arg) (cons (purecopy (car arg)) (purecopy (cdr arg)))) |
| 1723 | '(("Info\\|Help\\|Apropos\\|Man" . "Help") |
| 1724 | ("\\bVM\\b\\|\\bMH\\b\\|Message\\|Mail\\|Group\\|Score\\|Summary\\|Article" |
| 1725 | . "Mail/News") |
| 1726 | ("\\<C\\>" . "C") |
| 1727 | ("ObjC" . "C") |
| 1728 | ("Text" . "Text") |
| 1729 | ("Outline" . "Text") |
| 1730 | ("\\(HT\\|SG\\|X\\|XHT\\)ML" . "SGML") |
| 1731 | ("log\\|diff\\|vc\\|cvs\\|Annotate" . "Version Control") ; "Change Management"? |
| 1732 | ("Lisp" . "Lisp"))) |
| 1733 | "How to group various major modes together in \\[mouse-buffer-menu]. |
| 1734 | Each element has the form (REGEXP . GROUPNAME). |
| 1735 | If the major mode's name string matches REGEXP, use GROUPNAME instead.") |
| 1736 | |
| 1737 | (defun mouse-buffer-menu (event) |
| 1738 | "Pop up a menu of buffers for selection with the mouse. |
| 1739 | This switches buffers in the window that you clicked on, |
| 1740 | and selects that window." |
| 1741 | (interactive "e") |
| 1742 | (mouse-minibuffer-check event) |
| 1743 | (let ((buffers (buffer-list)) alist menu split-by-major-mode sum-of-squares) |
| 1744 | ;; Make an alist of elements that look like (MENU-ITEM . BUFFER). |
| 1745 | (dolist (buf buffers) |
| 1746 | ;; Divide all buffers into buckets for various major modes. |
| 1747 | ;; Each bucket looks like (MODE NAMESTRING BUFFERS...). |
| 1748 | (with-current-buffer buf |
| 1749 | (let* ((adjusted-major-mode major-mode) elt) |
| 1750 | (dolist (group mouse-buffer-menu-mode-groups) |
| 1751 | (when (string-match (car group) (format-mode-line mode-name)) |
| 1752 | (setq adjusted-major-mode (cdr group)))) |
| 1753 | (setq elt (assoc adjusted-major-mode split-by-major-mode)) |
| 1754 | (unless elt |
| 1755 | (setq elt (list adjusted-major-mode |
| 1756 | (if (stringp adjusted-major-mode) |
| 1757 | adjusted-major-mode |
| 1758 | (format-mode-line mode-name nil nil buf))) |
| 1759 | split-by-major-mode (cons elt split-by-major-mode))) |
| 1760 | (or (memq buf (cdr (cdr elt))) |
| 1761 | (setcdr (cdr elt) (cons buf (cdr (cdr elt)))))))) |
| 1762 | ;; Compute the sum of squares of sizes of the major-mode buckets. |
| 1763 | (let ((tail split-by-major-mode)) |
| 1764 | (setq sum-of-squares 0) |
| 1765 | (while tail |
| 1766 | (setq sum-of-squares |
| 1767 | (+ sum-of-squares |
| 1768 | (let ((len (length (cdr (cdr (car tail)))))) (* len len)))) |
| 1769 | (setq tail (cdr tail)))) |
| 1770 | (if (< (* sum-of-squares mouse-buffer-menu-mode-mult) |
| 1771 | (* (length buffers) (length buffers))) |
| 1772 | ;; Subdividing by major modes really helps, so let's do it. |
| 1773 | (let (subdivided-menus (buffers-left (length buffers))) |
| 1774 | ;; Sort the list to put the most popular major modes first. |
| 1775 | (setq split-by-major-mode |
| 1776 | (sort split-by-major-mode |
| 1777 | (function (lambda (elt1 elt2) |
| 1778 | (> (length elt1) (length elt2)))))) |
| 1779 | ;; Make a separate submenu for each major mode |
| 1780 | ;; that has more than one buffer, |
| 1781 | ;; unless all the remaining buffers are less than 1/10 of them. |
| 1782 | (while (and split-by-major-mode |
| 1783 | (and (> (length (car split-by-major-mode)) 3) |
| 1784 | (> (* buffers-left 10) (length buffers)))) |
| 1785 | (let ((this-mode-list (mouse-buffer-menu-alist |
| 1786 | (cdr (cdr (car split-by-major-mode)))))) |
| 1787 | (and this-mode-list |
| 1788 | (setq subdivided-menus |
| 1789 | (cons (cons |
| 1790 | (nth 1 (car split-by-major-mode)) |
| 1791 | this-mode-list) |
| 1792 | subdivided-menus)))) |
| 1793 | (setq buffers-left |
| 1794 | (- buffers-left (length (cdr (car split-by-major-mode))))) |
| 1795 | (setq split-by-major-mode (cdr split-by-major-mode))) |
| 1796 | ;; If any major modes are left over, |
| 1797 | ;; make a single submenu for them. |
| 1798 | (if split-by-major-mode |
| 1799 | (let ((others-list |
| 1800 | (mouse-buffer-menu-alist |
| 1801 | ;; we don't need split-by-major-mode any more, |
| 1802 | ;; so we can ditch it with nconc. |
| 1803 | (apply 'nconc (mapcar 'cddr split-by-major-mode))))) |
| 1804 | (and others-list |
| 1805 | (setq subdivided-menus |
| 1806 | (cons (cons "Others" others-list) |
| 1807 | subdivided-menus))))) |
| 1808 | (setq menu (cons "Buffer Menu" (nreverse subdivided-menus)))) |
| 1809 | (progn |
| 1810 | (setq alist (mouse-buffer-menu-alist buffers)) |
| 1811 | (setq menu (cons "Buffer Menu" |
| 1812 | (mouse-buffer-menu-split "Select Buffer" alist))))) |
| 1813 | (let ((buf (x-popup-menu event menu)) |
| 1814 | (window (posn-window (event-start event)))) |
| 1815 | (when buf |
| 1816 | (select-window |
| 1817 | (if (framep window) (frame-selected-window window) |
| 1818 | window)) |
| 1819 | (switch-to-buffer buf))))) |
| 1820 | |
| 1821 | (defun mouse-buffer-menu-alist (buffers) |
| 1822 | (let (tail |
| 1823 | (maxlen 0) |
| 1824 | head) |
| 1825 | (setq buffers |
| 1826 | (sort buffers |
| 1827 | (function (lambda (elt1 elt2) |
| 1828 | (string< (buffer-name elt1) (buffer-name elt2)))))) |
| 1829 | (setq tail buffers) |
| 1830 | (while tail |
| 1831 | (or (eq ?\s (aref (buffer-name (car tail)) 0)) |
| 1832 | (setq maxlen |
| 1833 | (max maxlen |
| 1834 | (length (buffer-name (car tail)))))) |
| 1835 | (setq tail (cdr tail))) |
| 1836 | (setq tail buffers) |
| 1837 | (while tail |
| 1838 | (let ((elt (car tail))) |
| 1839 | (if (/= (aref (buffer-name elt) 0) ?\s) |
| 1840 | (setq head |
| 1841 | (cons |
| 1842 | (cons |
| 1843 | (format |
| 1844 | (format "%%-%ds %%s%%s %%s" maxlen) |
| 1845 | (buffer-name elt) |
| 1846 | (if (buffer-modified-p elt) "*" " ") |
| 1847 | (with-current-buffer elt |
| 1848 | (if buffer-read-only "%" " ")) |
| 1849 | (or (buffer-file-name elt) |
| 1850 | (with-current-buffer elt |
| 1851 | (if list-buffers-directory |
| 1852 | (expand-file-name |
| 1853 | list-buffers-directory))) |
| 1854 | "")) |
| 1855 | elt) |
| 1856 | head)))) |
| 1857 | (setq tail (cdr tail))) |
| 1858 | ;; Compensate for the reversal that the above loop does. |
| 1859 | (nreverse head))) |
| 1860 | |
| 1861 | (defun mouse-buffer-menu-split (title alist) |
| 1862 | ;; If we have lots of buffers, divide them into groups of 20 |
| 1863 | ;; and make a pane (or submenu) for each one. |
| 1864 | (if (> (length alist) (/ (* mouse-buffer-menu-maxlen 3) 2)) |
| 1865 | (let ((alist alist) sublists next |
| 1866 | (i 1)) |
| 1867 | (while alist |
| 1868 | ;; Pull off the next mouse-buffer-menu-maxlen buffers |
| 1869 | ;; and make them the next element of sublist. |
| 1870 | (setq next (nthcdr mouse-buffer-menu-maxlen alist)) |
| 1871 | (if next |
| 1872 | (setcdr (nthcdr (1- mouse-buffer-menu-maxlen) alist) |
| 1873 | nil)) |
| 1874 | (setq sublists (cons (cons (format "Buffers %d" i) alist) |
| 1875 | sublists)) |
| 1876 | (setq i (1+ i)) |
| 1877 | (setq alist next)) |
| 1878 | (nreverse sublists)) |
| 1879 | ;; Few buffers--put them all in one pane. |
| 1880 | (list (cons title alist)))) |
| 1881 | \f |
| 1882 | (define-obsolete-function-alias |
| 1883 | 'mouse-choose-completion 'choose-completion "23.2") |
| 1884 | |
| 1885 | ;; Font selection. |
| 1886 | |
| 1887 | (defun font-menu-add-default () |
| 1888 | (let* ((default (cdr (assq 'font (frame-parameters (selected-frame))))) |
| 1889 | (font-alist x-fixed-font-alist) |
| 1890 | (elt (or (assoc "Misc" font-alist) (nth 1 font-alist)))) |
| 1891 | (if (assoc "Default" elt) |
| 1892 | (delete (assoc "Default" elt) elt)) |
| 1893 | (setcdr elt |
| 1894 | (cons (list "Default" default) |
| 1895 | (cdr elt))))) |
| 1896 | |
| 1897 | (defvar x-fixed-font-alist |
| 1898 | (list |
| 1899 | (purecopy "Font Menu") |
| 1900 | (cons |
| 1901 | (purecopy "Misc") |
| 1902 | (mapcar |
| 1903 | (lambda (arg) (cons (purecopy (car arg)) (purecopy (cdr arg)))) |
| 1904 | ;; For these, we specify the pixel height and width. |
| 1905 | '(("fixed" "fixed") |
| 1906 | ("6x10" "-misc-fixed-medium-r-normal--10-*-*-*-c-60-iso8859-1" "6x10") |
| 1907 | ("6x12" |
| 1908 | "-misc-fixed-medium-r-semicondensed--12-*-*-*-c-60-iso8859-1" "6x12") |
| 1909 | ("6x13" |
| 1910 | "-misc-fixed-medium-r-semicondensed--13-*-*-*-c-60-iso8859-1" "6x13") |
| 1911 | ("7x13" "-misc-fixed-medium-r-normal--13-*-*-*-c-70-iso8859-1" "7x13") |
| 1912 | ("7x14" "-misc-fixed-medium-r-normal--14-*-*-*-c-70-iso8859-1" "7x14") |
| 1913 | ("8x13" "-misc-fixed-medium-r-normal--13-*-*-*-c-80-iso8859-1" "8x13") |
| 1914 | ("9x15" "-misc-fixed-medium-r-normal--15-*-*-*-c-90-iso8859-1" "9x15") |
| 1915 | ("10x20" "-misc-fixed-medium-r-normal--20-*-*-*-c-100-iso8859-1" "10x20") |
| 1916 | ("11x18" "-misc-fixed-medium-r-normal--18-*-*-*-c-110-iso8859-1" "11x18") |
| 1917 | ("12x24" "-misc-fixed-medium-r-normal--24-*-*-*-c-120-iso8859-1" "12x24") |
| 1918 | ("") |
| 1919 | ("clean 5x8" |
| 1920 | "-schumacher-clean-medium-r-normal--8-*-*-*-c-50-iso8859-1") |
| 1921 | ("clean 6x8" |
| 1922 | "-schumacher-clean-medium-r-normal--8-*-*-*-c-60-iso8859-1") |
| 1923 | ("clean 8x8" |
| 1924 | "-schumacher-clean-medium-r-normal--8-*-*-*-c-80-iso8859-1") |
| 1925 | ("clean 8x10" |
| 1926 | "-schumacher-clean-medium-r-normal--10-*-*-*-c-80-iso8859-1") |
| 1927 | ("clean 8x14" |
| 1928 | "-schumacher-clean-medium-r-normal--14-*-*-*-c-80-iso8859-1") |
| 1929 | ("clean 8x16" |
| 1930 | "-schumacher-clean-medium-r-normal--16-*-*-*-c-80-iso8859-1") |
| 1931 | ("") |
| 1932 | ("sony 8x16" "-sony-fixed-medium-r-normal--16-*-*-*-c-80-iso8859-1") |
| 1933 | ;; We don't seem to have these; who knows what they are. |
| 1934 | ;; ("fg-18" "fg-18") |
| 1935 | ;; ("fg-25" "fg-25") |
| 1936 | ("lucidasanstypewriter-12" "-b&h-lucidatypewriter-medium-r-normal-sans-*-120-*-*-*-*-iso8859-1") |
| 1937 | ("lucidasanstypewriter-bold-14" "-b&h-lucidatypewriter-bold-r-normal-sans-*-140-*-*-*-*-iso8859-1") |
| 1938 | ("lucidasanstypewriter-bold-24" |
| 1939 | "-b&h-lucidatypewriter-bold-r-normal-sans-*-240-*-*-*-*-iso8859-1") |
| 1940 | ;; ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1") |
| 1941 | ;; ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*") |
| 1942 | ))) |
| 1943 | |
| 1944 | (cons |
| 1945 | (purecopy "Courier") |
| 1946 | (mapcar |
| 1947 | (lambda (arg) (cons (purecopy (car arg)) (purecopy (cdr arg)))) |
| 1948 | ;; For these, we specify the point height. |
| 1949 | '(("8" "-adobe-courier-medium-r-normal--*-80-*-*-m-*-iso8859-1") |
| 1950 | ("10" "-adobe-courier-medium-r-normal--*-100-*-*-m-*-iso8859-1") |
| 1951 | ("12" "-adobe-courier-medium-r-normal--*-120-*-*-m-*-iso8859-1") |
| 1952 | ("14" "-adobe-courier-medium-r-normal--*-140-*-*-m-*-iso8859-1") |
| 1953 | ("18" "-adobe-courier-medium-r-normal--*-180-*-*-m-*-iso8859-1") |
| 1954 | ("24" "-adobe-courier-medium-r-normal--*-240-*-*-m-*-iso8859-1") |
| 1955 | ("8 bold" "-adobe-courier-bold-r-normal--*-80-*-*-m-*-iso8859-1") |
| 1956 | ("10 bold" "-adobe-courier-bold-r-normal--*-100-*-*-m-*-iso8859-1") |
| 1957 | ("12 bold" "-adobe-courier-bold-r-normal--*-120-*-*-m-*-iso8859-1") |
| 1958 | ("14 bold" "-adobe-courier-bold-r-normal--*-140-*-*-m-*-iso8859-1") |
| 1959 | ("18 bold" "-adobe-courier-bold-r-normal--*-180-*-*-m-*-iso8859-1") |
| 1960 | ("24 bold" "-adobe-courier-bold-r-normal--*-240-*-*-m-*-iso8859-1") |
| 1961 | ("8 slant" "-adobe-courier-medium-o-normal--*-80-*-*-m-*-iso8859-1") |
| 1962 | ("10 slant" "-adobe-courier-medium-o-normal--*-100-*-*-m-*-iso8859-1") |
| 1963 | ("12 slant" "-adobe-courier-medium-o-normal--*-120-*-*-m-*-iso8859-1") |
| 1964 | ("14 slant" "-adobe-courier-medium-o-normal--*-140-*-*-m-*-iso8859-1") |
| 1965 | ("18 slant" "-adobe-courier-medium-o-normal--*-180-*-*-m-*-iso8859-1") |
| 1966 | ("24 slant" "-adobe-courier-medium-o-normal--*-240-*-*-m-*-iso8859-1") |
| 1967 | ("8 bold slant" "-adobe-courier-bold-o-normal--*-80-*-*-m-*-iso8859-1") |
| 1968 | ("10 bold slant" "-adobe-courier-bold-o-normal--*-100-*-*-m-*-iso8859-1") |
| 1969 | ("12 bold slant" "-adobe-courier-bold-o-normal--*-120-*-*-m-*-iso8859-1") |
| 1970 | ("14 bold slant" "-adobe-courier-bold-o-normal--*-140-*-*-m-*-iso8859-1") |
| 1971 | ("18 bold slant" "-adobe-courier-bold-o-normal--*-180-*-*-m-*-iso8859-1") |
| 1972 | ("24 bold slant" "-adobe-courier-bold-o-normal--*-240-*-*-m-*-iso8859-1") |
| 1973 | )))) |
| 1974 | "X fonts suitable for use in Emacs.") |
| 1975 | |
| 1976 | (declare-function generate-fontset-menu "fontset" ()) |
| 1977 | |
| 1978 | (defun mouse-select-font () |
| 1979 | "Prompt for a font name, using `x-popup-menu', and return it." |
| 1980 | (interactive) |
| 1981 | (unless (display-multi-font-p) |
| 1982 | (error "Cannot change fonts on this display")) |
| 1983 | (car |
| 1984 | (x-popup-menu |
| 1985 | (if (listp last-nonmenu-event) |
| 1986 | last-nonmenu-event |
| 1987 | (list '(0 0) (selected-window))) |
| 1988 | (append x-fixed-font-alist |
| 1989 | (list (generate-fontset-menu)))))) |
| 1990 | |
| 1991 | (declare-function text-scale-mode "face-remap") |
| 1992 | |
| 1993 | (defun mouse-set-font (&rest fonts) |
| 1994 | "Set the default font for the selected frame. |
| 1995 | The argument FONTS is a list of font names; the first valid font |
| 1996 | in this list is used. |
| 1997 | |
| 1998 | When called interactively, pop up a menu and allow the user to |
| 1999 | choose a font." |
| 2000 | (interactive |
| 2001 | (progn (unless (display-multi-font-p) |
| 2002 | (error "Cannot change fonts on this display")) |
| 2003 | (x-popup-menu |
| 2004 | (if (listp last-nonmenu-event) |
| 2005 | last-nonmenu-event |
| 2006 | (list '(0 0) (selected-window))) |
| 2007 | ;; Append list of fontsets currently defined. |
| 2008 | (append x-fixed-font-alist (list (generate-fontset-menu)))))) |
| 2009 | (if fonts |
| 2010 | (let (font) |
| 2011 | (while fonts |
| 2012 | (condition-case nil |
| 2013 | (progn |
| 2014 | (set-frame-font (car fonts)) |
| 2015 | (setq font (car fonts)) |
| 2016 | (setq fonts nil)) |
| 2017 | (error |
| 2018 | (setq fonts (cdr fonts))))) |
| 2019 | (if (null font) |
| 2020 | (error "Font not found"))))) |
| 2021 | |
| 2022 | (defvar mouse-appearance-menu-map nil) |
| 2023 | (declare-function x-select-font "xfns.c" (&optional frame ignored)) ; USE_GTK |
| 2024 | (declare-function buffer-face-mode-invoke "face-remap" |
| 2025 | (face arg &optional interactive)) |
| 2026 | (declare-function font-face-attributes "font.c" (font &optional frame)) |
| 2027 | |
| 2028 | (defun mouse-appearance-menu (event) |
| 2029 | "Show a menu for changing the default face in the current buffer." |
| 2030 | (interactive "@e") |
| 2031 | (require 'face-remap) |
| 2032 | (when (display-multi-font-p) |
| 2033 | (with-selected-window (car (event-start event)) |
| 2034 | (if mouse-appearance-menu-map |
| 2035 | nil ; regenerate new fonts |
| 2036 | ;; Initialize mouse-appearance-menu-map |
| 2037 | (setq mouse-appearance-menu-map |
| 2038 | (make-sparse-keymap "Change Default Buffer Face")) |
| 2039 | (define-key mouse-appearance-menu-map [face-remap-reset-base] |
| 2040 | '(menu-item "Reset to Default" face-remap-reset-base)) |
| 2041 | (define-key mouse-appearance-menu-map [text-scale-decrease] |
| 2042 | '(menu-item "Decrease Buffer Text Size" text-scale-decrease)) |
| 2043 | (define-key mouse-appearance-menu-map [text-scale-increase] |
| 2044 | '(menu-item "Increase Buffer Text Size" text-scale-increase)) |
| 2045 | ;; Font selector |
| 2046 | (if (functionp 'x-select-font) |
| 2047 | (define-key mouse-appearance-menu-map [x-select-font] |
| 2048 | '(menu-item "Change Buffer Font..." x-select-font)) |
| 2049 | ;; If the select-font is unavailable, construct a menu. |
| 2050 | (let ((font-submenu (make-sparse-keymap "Change Text Font")) |
| 2051 | (font-alist (cdr (append x-fixed-font-alist |
| 2052 | (list (generate-fontset-menu)))))) |
| 2053 | (dolist (family font-alist) |
| 2054 | (let* ((submenu-name (car family)) |
| 2055 | (submenu-map (make-sparse-keymap submenu-name))) |
| 2056 | (dolist (font (cdr family)) |
| 2057 | (let ((font-name (car font)) |
| 2058 | font-symbol) |
| 2059 | (if (string= font-name "") |
| 2060 | (define-key submenu-map [space] |
| 2061 | '("--")) |
| 2062 | (setq font-symbol (intern (cadr font))) |
| 2063 | (define-key submenu-map (vector font-symbol) |
| 2064 | (list 'menu-item (car font) font-symbol))))) |
| 2065 | (define-key font-submenu (vector (intern submenu-name)) |
| 2066 | (list 'menu-item submenu-name submenu-map)))) |
| 2067 | (define-key mouse-appearance-menu-map [font-submenu] |
| 2068 | (list 'menu-item "Change Text Font" font-submenu))))) |
| 2069 | (let ((choice (x-popup-menu event mouse-appearance-menu-map))) |
| 2070 | (setq choice (nth (1- (length choice)) choice)) |
| 2071 | (cond ((eq choice 'text-scale-increase) |
| 2072 | (text-scale-increase 1)) |
| 2073 | ((eq choice 'text-scale-decrease) |
| 2074 | (text-scale-increase -1)) |
| 2075 | ((eq choice 'face-remap-reset-base) |
| 2076 | (text-scale-mode 0) |
| 2077 | (buffer-face-mode 0)) |
| 2078 | (choice |
| 2079 | ;; Either choice == 'x-select-font, or choice is a |
| 2080 | ;; symbol whose name is a font. |
| 2081 | (buffer-face-mode-invoke (font-face-attributes |
| 2082 | (if (eq choice 'x-select-font) |
| 2083 | (x-select-font) |
| 2084 | (symbol-name choice))) |
| 2085 | t |
| 2086 | (called-interactively-p 'interactive)))))))) |
| 2087 | |
| 2088 | \f |
| 2089 | ;;; Bindings for mouse commands. |
| 2090 | |
| 2091 | (define-key global-map [down-mouse-1] 'mouse-drag-region) |
| 2092 | (global-set-key [mouse-1] 'mouse-set-point) |
| 2093 | (global-set-key [drag-mouse-1] 'mouse-set-region) |
| 2094 | |
| 2095 | ;; These are tested for in mouse-drag-region. |
| 2096 | (global-set-key [double-mouse-1] 'mouse-set-point) |
| 2097 | (global-set-key [triple-mouse-1] 'mouse-set-point) |
| 2098 | |
| 2099 | ;; Clicking on the fringes causes hscrolling: |
| 2100 | (global-set-key [left-fringe mouse-1] 'mouse-set-point) |
| 2101 | (global-set-key [right-fringe mouse-1] 'mouse-set-point) |
| 2102 | |
| 2103 | (global-set-key [mouse-2] 'mouse-yank-primary) |
| 2104 | ;; Allow yanking also when the corresponding cursor is "in the fringe". |
| 2105 | (global-set-key [right-fringe mouse-2] 'mouse-yank-at-click) |
| 2106 | (global-set-key [left-fringe mouse-2] 'mouse-yank-at-click) |
| 2107 | (global-set-key [mouse-3] 'mouse-save-then-kill) |
| 2108 | (global-set-key [right-fringe mouse-3] 'mouse-save-then-kill) |
| 2109 | (global-set-key [left-fringe mouse-3] 'mouse-save-then-kill) |
| 2110 | |
| 2111 | ;; By binding these to down-going events, we let the user use the up-going |
| 2112 | ;; event to make the selection, saving a click. |
| 2113 | (global-set-key [C-down-mouse-1] 'mouse-buffer-menu) |
| 2114 | (if (not (eq system-type 'ms-dos)) |
| 2115 | (global-set-key [S-down-mouse-1] 'mouse-appearance-menu)) |
| 2116 | ;; C-down-mouse-2 is bound in facemenu.el. |
| 2117 | (global-set-key [C-down-mouse-3] |
| 2118 | `(menu-item ,(purecopy "Menu Bar") ignore |
| 2119 | :filter (lambda (_) |
| 2120 | (if (zerop (or (frame-parameter nil 'menu-bar-lines) 0)) |
| 2121 | (mouse-menu-bar-map) |
| 2122 | (mouse-menu-major-mode-map))))) |
| 2123 | |
| 2124 | ;; Binding mouse-1 to mouse-select-window when on mode-, header-, or |
| 2125 | ;; vertical-line prevents Emacs from signaling an error when the mouse |
| 2126 | ;; button is released after dragging these lines, on non-toolkit |
| 2127 | ;; versions. |
| 2128 | (global-set-key [mode-line mouse-1] 'mouse-select-window) |
| 2129 | (global-set-key [mode-line drag-mouse-1] 'mouse-select-window) |
| 2130 | (global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line) |
| 2131 | (global-set-key [header-line down-mouse-1] 'mouse-drag-header-line) |
| 2132 | (global-set-key [header-line mouse-1] 'mouse-select-window) |
| 2133 | (global-set-key [mode-line mouse-2] 'mouse-delete-other-windows) |
| 2134 | (global-set-key [mode-line mouse-3] 'mouse-delete-window) |
| 2135 | (global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally) |
| 2136 | (global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically) |
| 2137 | (global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically) |
| 2138 | (global-set-key [vertical-line down-mouse-1] 'mouse-drag-vertical-line) |
| 2139 | (global-set-key [vertical-line mouse-1] 'mouse-select-window) |
| 2140 | |
| 2141 | (provide 'mouse) |
| 2142 | |
| 2143 | ;;; mouse.el ends here |