| blob | 4de3e175a4abb97fdece9830e203c4a6a53cb5ee |
1 ;;; mouse.el --- window system-independent mouse support
3 ;; Copyright (C) 1993-1995, 1999-2011 Free Software Foundation, Inc.
5 ;; Maintainer: FSF
6 ;; Keywords: hardware, mouse
7 ;; Package: emacs
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
24 ;;; Commentary:
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.
32 ;;; Code:
34 ;;; Utility functions.
36 ;; Indent track-mouse like progn.
40 "If non-nil, mouse yank commands yank at point instead of at click."
45 "If non-nil, copy to kill-ring upon mouse adjustments of the region.
48 addition to mouse drags."
54 "Non-nil means that clicking Mouse-1 on a link follows the link.
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).
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
67 short click follows the link, and a longer click performs the
68 normal action. A negative value gives the opposite behavior.
70 If value is `double', a double click follows the link.
72 Otherwise, a single Mouse-1 click unconditionally follows the link.
74 Note that dragging the mouse never follows the link.
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."
87 "If non-nil, a Mouse-1 click also follows links in non-selected windows.
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."
97 \f
98 ;; Provide a mode-specific menu on a mouse button.
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."
114 event cmd)
118 ;; The looping behavior was taken from lmenu's popup-menu-popup
120 ;; map could be a prefix key, in which case
121 ;; we need to get its function cell
122 ;; definition.
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)))
129 ;; We were given a list of keymaps. Search them all
130 ;; in sequence until a first binding is found.
132 binding)
138 binding)
139 ;; We were given a single keymap.
141 ;; Clear out echoing, which perhaps shows a prefix arg.
143 ;; Maybe try again but with the submap.
145 ;; If the user did not cancel by refusing to select,
146 ;; and if the result is a command, run it.
149 ;; `setup-specified-language-environment', for instance,
150 ;; expects this to be set from a menu keymap.
152 ;; mouse-major-mode-menu was using `command-execute' instead.
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'."
162 "Minor mode indicator: "
173 ,indicator
181 "Show minor-mode menu for EVENT on minor modes area of the mode line."
192 ;; Make a keymap in which our last command leads to a menu or
193 ;; default to the edit menu.
197 menu-bar-edit-menu))
198 uniq)
201 newmap))
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."
213 menubar
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."
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.
241 minor-mode)))
244 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.
263 global-menu
264 local-menu
265 minor-mode-menus)))
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."
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."
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."
293 event prefix))
295 \f
296 ;; Commands that operate on windows.
303 ;; Give temporary modes such as isearch a chance to turn off.
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."
316 "Select the window clicked on; don't move point."
328 "Delete the window clicked on, and create a new frame displaying its buffer."
339 "Delete all windows except the one you click on."
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."
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."
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."
382 above-window)
388 start-top)
394 above-window))
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."
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.
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.
433 should-enlarge-minibuffer event mouse y top bot edges wconfig growth)
436 ;; if this is the bottommost ordinary window, then to
437 ;; move its modeline the minibuffer must be enlarged.
440 mode-line-p
445 ;; loop reading events and sampling the position of
446 ;; the mouse.
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.
465 nil)
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.
477 nil)
480 nil)
488 ;; compute size change needed
494 ;; The window's top includes the header line!
498 ;; Check for an error case.
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.
509 ;; grow/shrink minibuffer?
513 ;; no. grow/shrink the selected window
514 ;(message "growth = %d" growth)
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.
532 mode-line-p
533 (/= top
535 ;; Choose right window.
536 start-event-window)))))
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.
544 ;; If mouse-2 has never been done by the user, it doesn't
545 ;; have the necessary property to be interpreted correctly.
550 "Change the height of a window by dragging on the mode line."
555 "Change the height of a window by dragging on the header line.
556 Windows whose header-lines are at the top of the frame cannot be
557 resized by dragging their header-line."
559 ;; Changing the window's size by dragging its header-line when the
560 ;; header-line is at the top of the frame is somewhat strange,
561 ;; because the header-line doesn't move, so don't do it.
571 \f
573 "Return a window that is immediately to the right of WINDOW, or nil."
576 best best-right
588 best))
591 "Change the width of a window by dragging on the vertical line."
593 ;; Give temporary modes such as isearch a chance to turn off.
599 event mouse x left right edges growth
615 ;; loop reading events and sampling the position of
616 ;; the mouse.
620 ;; do nothing if
621 ;; - there is a switch-frame event.
622 ;; - the mouse isn't in the frame that we started in
623 ;; - the mouse isn't in any Emacs frame
624 ;; drag if
625 ;; - there is a mouse-movement event
626 ;; - there is a scroll-bar-movement event
627 ;; (same as mouse movement for our purposes)
628 ;; quit if
629 ;; - there is a keyboard event or some other unknown event
630 ;; unknown event.
634 nil)
642 nil)
644 nil)
647 ;; If the scroll bar is on the window's left,
648 ;; adjust the window on the left.
650 start-event-window
652 start-event-window))))
658 ;; scale back a move that would make the
659 ;; window too thin.
662 ;; compute size change needed
667 \f
669 "Move point to the position clicked on with the mouse.
670 This should be bound to a mouse click event type."
673 ;; Use event-end in case called from mouse-drag-region.
674 ;; If EVENT is a click, event-end and event-start give same value.
682 "Return non-nil if there's an active region that was set with the mouse."
689 "Set the region to the text dragged over, and copy to kill ring.
690 This should be bound to a mouse drag event."
697 ;; Don't set this-command to `kill-region', so a following
698 ;; C-w won't double the text in the kill ring. Ignore
699 ;; `last-command' so we don't append to a preceding kill.
703 ;; On a text terminal, bounce the cursor.
713 ;; Set transient-mark-mode for a little while.
718 transient-mark-mode))))
724 "The pause between scroll steps caused by mouse drags, in seconds.
725 If you drag the mouse beyond the edge of a window, Emacs scrolls the
726 window to bring the text beyond that edge into view, with a delay of
727 this many seconds between scroll steps. Scrolling stops when you move
728 the mouse back into the window, or release the button.
729 This variable's value may be non-integral.
730 Setting this to zero causes Emacs to scroll as fast as it can."
735 "The minimum number of lines scrolled by dragging mouse out of window.
736 Moving the mouse out the top or bottom edge of the window begins
737 scrolling repeatedly. The number of lines scrolled per repetition
738 is normally equal to the number of lines beyond the window edge that
739 the mouse has moved. However, it always scrolls at least the number
740 of lines specified by this variable."
745 "Scroll the window WINDOW, JUMP lines at a time, until new input arrives.
746 If OVERLAY is an overlay, let it stretch from START to the far edge of
747 the newly visible text.
748 Upon exit, point is at the far edge of the newly visible text."
764 ;; window-end doesn't reflect the window's new
765 ;; start position until the next redisplay.
771 ;; Now that we have scrolled WINDOW properly,
772 ;; put point back where it was for the redisplay
773 ;; so that we don't mess up the selected window.
785 "Set the region to the text that the mouse is dragged over.
786 Highlight the drag area as you move the mouse.
787 This must be bound to a button-down mouse event.
788 In Transient Mark mode, the highlighting remains as long as the mark
789 remains active. Otherwise, it remains until the next input event.
791 If the click is in the echo area, display the `*Messages*' buffer."
793 ;; Give temporary modes such as isearch a chance to turn off.
799 "Look for a property at click position.
800 POS may be either a buffer position or a click position like
801 those returned from `event-start'. If the click position is on
802 a string, the text property PROPERTY is examined.
803 If this is nil or the click is not on a string, then
804 the corresponding buffer position is searched for PROPERTY.
805 If PROPERTY is encountered in one of those places,
806 its value is returned."
817 "Return non-nil if POS is on a link in the current buffer.
818 POS must be a buffer position in the current buffer or a mouse
819 event location in the selected window (see `event-start').
820 However, if `mouse-1-click-in-non-selected-windows' is non-nil,
821 POS may be a mouse event location in any window.
823 A clickable link is identified by one of the following methods:
825 - If the character at POS has a non-nil `follow-link' text or
826 overlay property, the value of that property determines what to do.
828 - If there is a local key-binding or a keybinding at position POS
829 for the `follow-link' event, the binding of that event determines
830 what to do.
832 The resulting value determine whether POS is inside a link:
834 - If the value is `mouse-face', POS is inside a link if there
835 is a non-nil `mouse-face' property at POS. Return t in this case.
837 - If the value is a function, FUNC, POS is inside a link if
838 the call \(FUNC POS) returns non-nil. Return the return value
839 from that call. Arg is \(posn-point POS) if POS is a mouse event.
841 - Otherwise, return the value itself.
843 The return value is interpreted as follows:
845 - If it is a string, the mouse-1 event is translated into the
846 first character of the string, i.e. the action of the mouse-1
847 click is the local or global binding of that character.
849 - If it is a vector, the mouse-1 event is translated into the
850 first element of that vector, i.e. the action of the mouse-1
851 click is the local or global binding of that event.
853 - Otherwise, the mouse-1 event is translated into a mouse-2 event
854 at the same position."
857 mouse-1-click-in-non-selected-windows
865 ;; FIXME: This seems questionable if the click is not in a buffer.
866 ;; Should we instead decide that `action' takes a `posn'?
874 "Fix help message MSG for `mouse-1-click-follows-link'."
894 msg)
897 do-mouse-drag-region-post-process)
898 "Track mouse drags by highlighting area between point and cursor.
899 The region will be defined with mark and point.
900 DO-MOUSE-DRAG-REGION-POST-PROCESS should only be used by
901 `mouse-drag-region'."
906 ;; We've recorded what we needed from the current buffer and
907 ;; window, now let's jump to the place of the event, where things
908 ;; are happening.
921 ;; Don't count the mode line.
926 ;; Use start-point before the intangibility
927 ;; treatment, in case we click on a link inside an
928 ;; intangible text.
934 ;; Suppress automatic hscrolling, because that is a nuisance
935 ;; when setting point near the right fringe (but see below).
938 event end end-point)
941 ;; In case the down click is in the middle of some intangible text,
942 ;; use the end of that text, and put it in START-POINT.
949 ;; Activate the region, using `mouse-start-end' to determine where
950 ;; to put point and mark (e.g., double-click will select a word).
959 ;; Track the mouse until we get a non-movement event.
966 ;; Automatic hscrolling did not occur during the call to
967 ;; `read-event'; but if the user subsequently drags the
968 ;; mouse, go ahead and hscroll.
976 end-point click-count)
982 nil start-point))
985 nil start-point))))))))
987 ;; Handle the terminating event if possible.
989 ;; Ensure that point is on the end of the last event.
995 end-point click-count))
997 ;; Find its binding.
1002 mouse-set-region))))))
1006 ;; If point has moved, finish the drag.
1009 do-mouse-drag-region-post-process
1013 ;; If point hasn't moved, run the binding of the
1014 ;; terminating up-event.
1020 ;; Don't run the up-event handler if the window
1021 ;; start changed in a redisplay after the
1022 ;; mouse-set-point for the down-mouse event at
1023 ;; the beginning of this function. When the
1024 ;; window start has changed, the up-mouse event
1025 ;; contains a different position due to the new
1026 ;; window contents, and point is set again.
1029 start-window-start)))
1033 ;; If we rebind to mouse-2, reselect previous selected
1034 ;; window, so that the mouse-2 event runs in the same
1035 ;; situation as if user had clicked it directly. Fixes
1036 ;; the bug reported by juri@jurta.org on 2005-12-27.
1041 ;; If this mouse click has never been done by the
1042 ;; user, it doesn't have the necessary property to be
1043 ;; interpreted correctly.
1077 \f
1078 ;; Commands to handle xterm-style multiple clicks.
1080 "Skip over word, over whitespace, or over identical punctuation.
1081 If DIR is positive skip forward; if negative, skip backward."
1085 ;; Here, we can't use skip-syntax-forward/backward because
1086 ;; they don't pay attention to word-separating-categories,
1087 ;; and thus they will skip over a true word boundary. So,
1088 ;; we simulate the original behavior by using forward-word.
1110 "Return a list of region bounds based on START and END according to MODE.
1111 If MODE is 0 then set point to (min START END), mark to (max START END).
1112 If MODE is 1 then set point to start of word at (min START END),
1113 mark to end of word at (max START END).
1114 If MODE is 2 then do the same for lines."
1118 end temp)))
1182 \f
1183 ;; Subroutine: set the mark where CLICK happened,
1184 ;; but don't do anything else.
1201 ;; Use reverse, not nreverse, since event-modifiers
1202 ;; does not copy the list it returns.
1205 event)))
1209 t
1211 nil)))
1213 ;; Momentarily show where the mark is, if highlighting doesn't show it.
1216 "Set mark at the position clicked on with the mouse.
1217 Display cursor at that position for a second.
1218 This must be bound to a mouse click."
1222 ;; We don't use save-excursion because that preserves the mark too.
1232 "Kill the region between point and the mouse click.
1244 "Insert the last stretch of killed text at the position clicked on.
1245 Also move point to one end of the text thus inserted (normally the end),
1246 and set mark at the beginning.
1248 If `mouse-yank-at-point' is non-nil, insert at point
1249 regardless of where you click."
1251 ;; Give temporary modes such as isearch a chance to turn off.
1254 ;; Without this, confusing things happen upon e.g. inserting into
1255 ;; the middle of an active region.
1263 "Insert the primary selection at the position clicked on.
1264 Move point to the end of the inserted text.
1265 If `mouse-yank-at-point' is non-nil, insert at point
1266 regardless of where you click."
1268 ;; Give temporary modes such as isearch a chance to turn off.
1270 ;; Without this, confusing things happen upon e.g. inserting into
1271 ;; the middle of an active region.
1279 ;; MS-Windows emulates PRIMARY in x-get-selection, but not
1280 ;; in x-get-selection-value (the latter only accesses the
1281 ;; clipboard). So try PRIMARY first, in case they selected
1282 ;; something with the mouse in the current Emacs session.
1286 ;; On X, x-get-selection-value supports more formats and
1287 ;; encodings, so use it in preference to x-get-selection.
1290 ;; FIXME: What about xterm-mouse-mode etc.?
1298 "Copy the region between point and the mouse click in the kill ring.
1305 ;; This function used to delete the text between point and the mouse
1306 ;; whenever it was equal to the front of the kill ring, but some
1307 ;; people found that confusing.
1309 ;; The position of the last invocation of `mouse-save-then-kill'.
1313 ;; We must make our own undo boundaries
1314 ;; because they happen automatically only for the current buffer.
1317 ;; If we have no undo list in this buffer,
1318 ;; just delete.
1320 ;; Delete, but make the undo-list entry share with the kill ring.
1321 ;; First, delete just one char, so in case buffer is being modified
1322 ;; for the first time, the undo list records that fact.
1327 ;; Undo that deletion--but don't change the undo list!
1330 ;; Now delete the rest of the specified region,
1331 ;; but don't record it.
1337 ;; Search back in buffer-undo-list for the string
1338 ;; that came from deleting one character.
1341 ;; Replace it with an entry for the entire deleted text.
1347 "Set the region according to CLICK; the second time, kill it.
1348 CLICK should be a mouse click event.
1350 If the region is inactive, activate it temporarily. Set mark at
1351 the original point, and move point to the position of CLICK.
1353 If the region is already active, adjust it. Normally, do this by
1354 moving point or mark, whichever is closer, to CLICK. But if you
1355 have selected whole words or lines, move point or mark to the
1356 word or line boundary closest to CLICK instead.
1358 If `mouse-drag-copy-region' is non-nil, this command also saves the
1359 new region to the kill ring (replacing the previous kill if the
1360 previous region was just saved to the kill ring).
1362 If this command is called a second consecutive time with the same
1363 CLICK position, kill the region (or delete it
1364 if `mouse-drag-copy-region' is non-nil)"
1371 ;; Don't let a subsequent kill command append to this one.
1373 ;; Check if the user has multi-clicked to select words/lines.
1377 mouse-selection-click-count
1381 ;; If the user clicked without moving point, kill the region.
1382 ;; This also resets `mouse-selection-click-count'.
1387 ;; Region already saved in the previous click;
1388 ;; don't make a duplicate entry, just delete.
1394 ;; Otherwise, if there is a suitable region, adjust it by moving
1395 ;; one end (whichever is closer) to CLICK-PT.
1400 mouse-save-then-kill-posn)
1402 mouse-set-region))
1414 ;; Region already copied to kill-ring once, so replace.
1416 ;; Arrange for a repeated mouse-3 to kill the region.
1419 ;; Otherwise, set the mark where point is and move to CLICK-PT.
1431 \f
1442 ol)
1443 "An overlay which records the current secondary selection.
1448 ;; A marker which records the specified first end for a secondary selection.
1449 ;; May be nil.
1453 "Set one end of the secondary selection to the position clicked on.
1455 and complete the secondary selection."
1460 ;; Cancel any preexisting secondary selection.
1469 "Set the secondary selection to the text that the mouse is dragged over.
1470 This must be bound to a mouse drag event."
1474 beg
1481 'SECONDARY
1486 "Set the secondary selection to the text that the mouse is dragged over.
1487 Highlight the drag area as you move the mouse.
1488 This must be bound to a button-down mouse event.
1489 The function returns a non-nil value if it creates a secondary selection."
1500 ;; Don't count the mode line.
1506 ;; Double or triple press: make an initial selection
1507 ;; of one word or line.
1512 ;; Single-press: cancel any preexisting secondary selection.
1525 nil
1529 ;; Are we moving within the original window?
1533 click-count)))
1546 mouse-secondary-overlay start-point))
1549 mouse-secondary-overlay start-point)))))))))
1560 nil))
1562 'SECONDARY
1567 "Insert the secondary selection at the position clicked on.
1568 Move point to the end of the inserted text.
1569 If `mouse-yank-at-point' is non-nil, insert at point
1570 regardless of where you click."
1572 ;; Give temporary modes such as isearch a chance to turn off.
1581 "Kill the text in the secondary selection.
1582 This is intended more as a keyboard command than as a mouse command
1583 but it can work as either one.
1585 The current buffer (in case of keyboard use), or the buffer clicked on,
1586 must be the one that the secondary selection is in. This requirement
1587 is to prevent accidents."
1603 "Set the secondary selection and save it to the kill ring.
1604 The second time, kill it. CLICK should be a mouse click event.
1606 If you have not called `mouse-start-secondary' in the clicked
1607 buffer, activate the secondary selection and set it between point
1608 and the click position CLICK.
1610 Otherwise, adjust the bounds of the secondary selection.
1611 Normally, do this by moving its beginning or end, whichever is
1612 closer, to CLICK. But if you have selected whole words or lines,
1613 adjust to the word or line boundary closest to CLICK instead.
1615 If this command is called a second consecutive time with the same
1616 CLICK position, kill the secondary selection."
1623 ;; Don't let a subsequent kill command append to this one.
1625 ;; Check if the user has multi-clicked to select words/lines.
1628 mouse-secondary-click-count
1636 ;; If the secondary selection is not active in BUF, activate it.
1646 ;; If the user clicked without moving point, delete the secondary
1647 ;; selection. This also resets `mouse-secondary-click-count'.
1656 ;; Otherwise, if there is a suitable secondary selection overlay,
1657 ;; adjust it by moving one end (whichever is closer) to CLICK-PT.
1666 ;; If the front of the kill ring comes from an immediately
1667 ;; previous use of this command, replace the entry.
1671 t)
1677 ;; Otherwise, set the secondary selection overlay.
1681 ;; All we have is one end of a selection, so put the other
1682 ;; end here.
1688 ;; Finally, set the window system's secondary selection.
1696 \f
1698 "Number of buffers in one pane (submenu) of the buffer menu.
1699 If we have lots of buffers, divide them into groups of
1700 `mouse-buffer-menu-maxlen' and make a pane (or submenu) for each one."
1707 will split the buffer menu by the major modes (see
1708 `mouse-buffer-menu-mode-groups') or just by menu length.
1709 Set to 1 (or even 0!) if you want to group by major mode always, and to
1710 a large number if you prefer a mixed multitude. The default is 4."
1726 ("Threads\\|Memory\\|Disassembly\\|Breakpoints\\|Frames\\|Locals\\|Registers\\|Inferior I/O\\|Debugger"
1730 Each element has the form (REGEXP . GROUPNAME).
1734 "Pop up a menu of buffers for selection with the mouse.
1735 This switches buffers in the window that you clicked on,
1736 and selects that window."
1740 ;; Make an alist of elements that look like (MENU-ITEM . BUFFER).
1742 ;; Divide all buffers into buckets for various major modes.
1743 ;; Each bucket looks like (MODE NAMESTRING BUFFERS...).
1753 adjusted-major-mode
1758 ;; Compute the sum of squares of sizes of the major-mode buckets.
1763 (+ sum-of-squares
1768 ;; Subdividing by major modes really helps, so let's do it.
1770 ;; Sort the list to put the most popular major modes first.
1775 ;; Make a separate submenu for each major mode
1776 ;; that has more than one buffer,
1777 ;; unless all the remaining buffers are less than 1/10 of them.
1787 this-mode-list)
1788 subdivided-menus))))
1792 ;; If any major modes are left over,
1793 ;; make a single submenu for them.
1797 ;; we don't need split-by-major-mode any more,
1798 ;; so we can ditch it with nconc.
1803 subdivided-menus)))))
1814 window))
1820 head)
1849 list-buffers-directory)))
1851 elt)
1852 head))))
1854 ;; Compensate for the reversal that the above loop does.
1858 ;; If we have lots of buffers, divide them into groups of 20
1859 ;; and make a pane (or submenu) for each one.
1864 ;; Pull off the next mouse-buffer-menu-maxlen buffers
1865 ;; and make them the next element of sublist.
1869 nil))
1871 sublists))
1875 ;; Few buffers--put them all in one pane.
1877 \f
1881 ;; Font selection.
1900 ;; For these, we specify the pixel height and width.
1929 ;; We don't seem to have these; who knows what they are.
1930 ;; ("fg-18" "fg-18")
1931 ;; ("fg-25" "fg-25")
1932 ("lucidasanstypewriter-12" "-b&h-lucidatypewriter-medium-r-normal-sans-*-120-*-*-*-*-iso8859-1")
1933 ("lucidasanstypewriter-bold-14" "-b&h-lucidatypewriter-bold-r-normal-sans-*-140-*-*-*-*-iso8859-1")
1936 ;; ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
1937 ;; ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
1938 )))
1944 ;; For these, we specify the point height.
1969 ))))
1975 "Prompt for a font name, using `x-popup-menu', and return it."
1982 last-nonmenu-event
1990 "Set the default font for the selected frame.
1991 The argument FONTS is a list of font names; the first valid font
1992 in this list is used.
1994 When called interactively, pop up a menu and allow the user to
1995 choose a font."
2001 last-nonmenu-event
2003 ;; Append list of fontsets currently defined.
2025 "Show a menu for changing the default face in the current buffer."
2031 nil ; regenerate new fonts
2032 ;; Initialize mouse-appearance-menu-map
2041 ;; Font selector
2045 ;; If the select-font is unavailable, construct a menu.
2054 font-symbol)
2057 '("--"))
2058 (setq font-symbol (intern (cadr font)))
2059 (define-key submenu-map (vector font-symbol)
2060 (list 'menu-item (car font) font-symbol)))))
2061 (define-key font-submenu (vector (intern submenu-name))
2062 (list 'menu-item submenu-name submenu-map))))
2063 (define-key mouse-appearance-menu-map [font-submenu]
2064 (list 'menu-item "Change Text Font" font-submenu)))))
2065 (let ((choice (x-popup-menu event mouse-appearance-menu-map)))
2066 (setq choice (nth (1- (length choice)) choice))
2067 (cond ((eq choice 'text-scale-increase)
2068 (text-scale-increase 1))
2069 ((eq choice 'text-scale-decrease)
2070 (text-scale-increase -1))
2071 ((eq choice 'face-remap-reset-base)
2072 (text-scale-mode 0)
2073 (buffer-face-mode 0))
2074 (choice
2075 ;; Either choice == 'x-select-font, or choice is a
2076 ;; symbol whose name is a font.
2077 (buffer-face-mode-invoke (font-face-attributes
2078 (if (eq choice 'x-select-font)
2079 (x-select-font)
2080 (symbol-name choice)))
2081 t
2082 (called-interactively-p 'interactive))))))))
2084 \f
2085 ;;; Bindings for mouse commands.
2087 (define-key global-map [down-mouse-1] 'mouse-drag-region)
2088 (global-set-key [mouse-1] 'mouse-set-point)
2089 (global-set-key [drag-mouse-1] 'mouse-set-region)
2091 ;; These are tested for in mouse-drag-region.
2092 (global-set-key [double-mouse-1] 'mouse-set-point)
2093 (global-set-key [triple-mouse-1] 'mouse-set-point)
2095 (defun mouse--strip-first-event (_prompt)
2096 (substring (this-single-command-raw-keys) 1))
2098 (define-key function-key-map [left-fringe mouse-1] 'mouse--strip-first-event)
2099 (define-key function-key-map [right-fringe mouse-1] 'mouse--strip-first-event)
2101 (global-set-key [mouse-2] 'mouse-yank-primary)
2102 ;; Allow yanking also when the corresponding cursor is "in the fringe".
2103 (define-key function-key-map [right-fringe mouse-2] 'mouse--strip-first-event)
2104 (define-key function-key-map [left-fringe mouse-2] 'mouse--strip-first-event)
2105 (global-set-key [mouse-3] 'mouse-save-then-kill)
2106 (define-key function-key-map [right-fringe mouse-3] 'mouse--strip-first-event)
2107 (define-key function-key-map [left-fringe mouse-3] 'mouse--strip-first-event)
2109 ;; By binding these to down-going events, we let the user use the up-going
2110 ;; event to make the selection, saving a click.
2111 (global-set-key [C-down-mouse-1] 'mouse-buffer-menu)
2112 (if (not (eq system-type 'ms-dos))
2113 (global-set-key [S-down-mouse-1] 'mouse-appearance-menu))
2114 ;; C-down-mouse-2 is bound in facemenu.el.
2115 (global-set-key [C-down-mouse-3]
2116 `(menu-item ,(purecopy "Menu Bar") ignore
2117 :filter (lambda (_)
2118 (if (zerop (or (frame-parameter nil 'menu-bar-lines) 0))
2119 (mouse-menu-bar-map)
2120 (mouse-menu-major-mode-map)))))
2122 ;; Binding mouse-1 to mouse-select-window when on mode-, header-, or
2123 ;; vertical-line prevents Emacs from signaling an error when the mouse
2124 ;; button is released after dragging these lines, on non-toolkit
2125 ;; versions.
2126 (global-set-key [mode-line mouse-1] 'mouse-select-window)
2127 (global-set-key [mode-line drag-mouse-1] 'mouse-select-window)
2128 (global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line)
2129 (global-set-key [header-line down-mouse-1] 'mouse-drag-header-line)
2130 (global-set-key [header-line mouse-1] 'mouse-select-window)
2131 (global-set-key [mode-line mouse-2] 'mouse-delete-other-windows)
2132 (global-set-key [mode-line mouse-3] 'mouse-delete-window)
2133 (global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally)
2134 (global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically)
2135 (global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically)
2136 (global-set-key [vertical-line down-mouse-1] 'mouse-drag-vertical-line)
2137 (global-set-key [vertical-line mouse-1] 'mouse-select-window)
2139 (provide 'mouse)
2141 ;;; mouse.el ends here