| blob | e78eca40bc54fc6c142a64c96b5a6a5dc18b69d4 |
1 ;;; mouse.el --- window system-independent mouse support -*- lexical-binding: t -*-
3 ;; Copyright (C) 1993-1995, 1999-2015 Free Software Foundation, Inc.
5 ;; Maintainer: emacs-devel@gnu.org
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.
30 ;;; Code:
32 ;;; Utility functions.
34 ;; Indent track-mouse like progn.
38 "If non-nil, mouse yank commands yank at point instead of at click."
43 "If non-nil, copy to kill-ring upon mouse adjustments of the region.
46 addition to mouse drags."
52 "Non-nil means that clicking Mouse-1 on a link follows the link.
54 With the default setting, an ordinary Mouse-1 click on a link
55 performs the same action as Mouse-2 on that link, while a longer
56 Mouse-1 click \(hold down the Mouse-1 button for more than 450
57 milliseconds) performs the original Mouse-1 binding \(which
58 typically sets point where you click the mouse).
60 If value is an integer, the time elapsed between pressing and
61 releasing the mouse button determines whether to follow the link
62 or perform the normal Mouse-1 action (typically set point).
63 The absolute numeric value specifies the maximum duration of a
65 short click follows the link, and a longer click performs the
66 normal action. A negative value gives the opposite behavior.
68 If value is `double', a double click follows the link.
70 Otherwise, a single Mouse-1 click unconditionally follows the link.
72 Note that dragging the mouse never follows the link.
74 This feature only works in modes that specifically identify
75 clickable text as links, so it may not work with some external
76 packages. See `mouse-on-link-p' for details."
85 "If non-nil, a Mouse-1 click also follows links in non-selected windows.
87 If nil, a Mouse-1 click on a link in a non-selected window performs
88 the normal mouse-1 binding, typically selects the window and sets
89 point at the click position."
95 "Turn `mouse-1' events into `mouse-2' events if follows-link.
96 Expects to be bound to `down-mouse-1' in `key-translation-map'."
112 nil
117 ;; Turn the mouse-1 into a mouse-2 to follow links.
120 ;; If mouse-2 has never been done by the user, it doesn't have
121 ;; the necessary property to be interpreted correctly.
125 ;; Don't change the down event, only the up-event (bug#18212).
126 nil)
128 nil))))))
135 \f
136 ;; Provide a mode-specific menu on a mouse button.
139 "Show menu for minor mode specified by INDICATOR.
140 Interactively, INDICATOR is read using completion.
141 If there is no menu defined for the minor mode, then create one with
142 items `Turn Off' and `Help'."
145 "Minor mode indicator: "
156 ,indicator
164 "Show minor-mode menu for EVENT on minor modes area of the mode line."
175 ;; Make a keymap in which our last command leads to a menu or
176 ;; default to the edit menu.
180 menu-bar-edit-menu)))
183 newmap))
186 "Return menu keybar MENUBAR, or a lone submenu inside it.
187 If MENUBAR defines exactly one submenu, return just that submenu.
188 Otherwise, return MENUBAR."
195 menubar
199 "Return a keymap equivalent to the menu bar.
200 The contents are the items that would be in the menu bar whether or
201 not it is actually displayed."
206 ;; If a keymap doesn't have a prompt string (a lazy
207 ;; programmer didn't bother to provide one), create it and
208 ;; insert it into the keymap; each keymap gets its own
209 ;; prompt. This is required for non-toolkit versions to
210 ;; display non-empty menu pane names.
223 minor-mode)))
226 menu))
240 ;; Supplying the list is faster than making a new map.
241 ;; FIXME: We have a problem here: we have to use the global/local/minor
242 ;; so they're displayed in the expected order, but later on in the command
243 ;; loop, they're actually looked up in the opposite order.
245 global-menu
246 local-menu
247 minor-mode-menus)))
250 "Pop up a mode-specific menu of mouse commands.
251 Default to the Edit menu if the major mode doesn't define a menu."
258 "Pop up a menu equivalent to the menu bar for keyboard EVENT with PREFIX.
259 The contents are the items that would be in the menu bar whether or
260 not it is actually displayed."
267 "Popup a menu like either `mouse-major-mode-menu' or `mouse-popup-menubar'.
268 Use the former if the menu bar is showing, otherwise the latter."
276 event prefix))
277 \f
278 ;; Commands that operate on windows.
285 ;; Give temporary modes such as isearch a chance to turn off.
289 "Delete the window you click on.
290 Do nothing if the frame has just one window.
291 This command must be bound to a mouse click."
298 "Select the window clicked on; don't move point."
311 "Delete the selected window, and create a new frame displaying its buffer."
322 "Delete all windows except the one you click on."
327 "Select Emacs window mouse is on, then split it vertically in half.
328 The window is split at the line clicked on.
329 This command must be bound to a mouse click."
343 "Select Emacs window mouse is on, then split it horizontally in half.
344 The window is split at the column clicked on.
345 This command must be bound to a mouse click."
359 "Drag a mode line, header line, or vertical line with the mouse.
360 START-EVENT is the starting mouse-event of the drag action. LINE
361 must be one of the symbols `header', `mode', or `vertical'."
362 ;; Give temporary modes such as isearch a chance to turn off.
368 ;; `position' records the x- or y-coordinate of the last
369 ;; sampled position.
375 ;; `last-position' records the x- or y-coordinate of the
376 ;; previously sampled position. The difference of `position'
377 ;; and `last-position' determines the size change of WINDOW.
380 posn-window growth dragged)
381 ;; Decide on whether we are allowed to track at all and whose
382 ;; window's edge we drag.
386 ;; We can't drag the header line of a topmost window.
388 ;; Drag bottom edge of window above the header line.
392 ;; Allow resizing the minibuffer window if it's on the
393 ;; same frame as and immediately below `window', and it's
394 ;; either active or `resize-mini-windows' is nil.
407 nil)
409 ;; Drag right edge of `window'.
412 ;; Set `posn-window' to the window where `event' was recorded.
413 ;; This can be `window' or the window on the left or right of
414 ;; `window'.
416 ;; Add left edge of `posn-window' to `position'.
419 ;; Add width of objects on the left of the text area to
420 ;; `position'.
423 position)))
426 position))))
427 ;; When the cursor overshoots after shrinking a window to its
428 ;; minimum size and the dragging direction changes, have the
429 ;; cursor first catch up with the window edge.
441 ;; Drag bottom edge of `window'.
443 ;; Set `posn-window' to the window where `event' was recorded.
444 ;; This can be either `window' or the window above or below of
445 ;; `window'.
449 ;; Add top edge of `posn-window' to `position'.
451 ;; If necessary, add height of header line to `position'
455 ;; When the cursor overshoots after shrinking a window to its
456 ;; minimum size and the dragging direction changes, have the
457 ;; cursor first catch up with the window edge.
468 ;; Start tracking.
470 ;; Loop reading events and sampling the position of the mouse.
478 ;; Swallow drag-mouse-1 events to avoid selecting some other window.
481 ;; For vertical line dragging swallow also a mouse-1
482 ;; event (but only if we dragged at least once to allow mouse-1
483 ;; clicks to get through).
488 ;; Some of the events will of course end up looked up
489 ;; with a mode-line or header-line prefix ...
492 ;; ... and some maybe even with a right- or bottom-divider
493 ;; prefix.
496 map)
500 "Change the height of a window by dragging on the mode line."
505 "Change the height of a window by dragging on the header line."
510 "Change the width of a window by dragging on the vertical line."
513 \f
515 "Move point to the position clicked on with the mouse.
516 This should be bound to a mouse click event type.
517 If PROMOTE-TO-REGION is non-nil and event is a multiple-click,
518 select the corresponding element around point."
523 ;; Use event-end in case called from mouse-drag-region.
524 ;; If EVENT is a click, event-end and event-start give same value.
532 "Return non-nil if there's an active region that was set with the mouse."
541 "Set the region to the text dragged over, and copy to kill ring.
542 This should be bound to a mouse drag event.
543 See the `mouse-drag-copy-region' variable to control whether this
544 command alters the kill ring or not."
553 ;; Drag events don't come with a click count, sadly, so we hack
554 ;; our way around this problem by remembering the start-event in
555 ;; `mouse-drag-start' and fetching the click-count from there.
559 ;; Occasionally we get spurious drag events where the user hasn't
560 ;; dragged his mouse, but instead Emacs has dragged the text under the
561 ;; user's mouse. Try to recover those cases (bug#17562).
573 ;; Don't set this-command to `kill-region', so a following
574 ;; C-w won't double the text in the kill ring. Ignore
575 ;; `last-command' so we don't append to a preceding kill.
579 ;; On a text terminal, bounce the cursor.
589 ;; Set transient-mark-mode for a little while.
594 transient-mark-mode))))
600 "The pause between scroll steps caused by mouse drags, in seconds.
601 If you drag the mouse beyond the edge of a window, Emacs scrolls the
602 window to bring the text beyond that edge into view, with a delay of
603 this many seconds between scroll steps. Scrolling stops when you move
604 the mouse back into the window, or release the button.
605 This variable's value may be non-integral.
606 Setting this to zero causes Emacs to scroll as fast as it can."
611 "The minimum number of lines scrolled by dragging mouse out of window.
612 Moving the mouse out the top or bottom edge of the window begins
613 scrolling repeatedly. The number of lines scrolled per repetition
614 is normally equal to the number of lines beyond the window edge that
615 the mouse has moved. However, it always scrolls at least the number
616 of lines specified by this variable."
621 "Scroll the window WINDOW, JUMP lines at a time, until new input arrives.
622 If OVERLAY is an overlay, let it stretch from START to the far edge of
623 the newly visible text.
624 Upon exit, point is at the far edge of the newly visible text."
640 ;; window-end doesn't reflect the window's new
641 ;; start position until the next redisplay.
647 ;; Now that we have scrolled WINDOW properly,
648 ;; put point back where it was for the redisplay
649 ;; so that we don't mess up the selected window.
661 "Set the region to the text that the mouse is dragged over.
662 Highlight the drag area as you move the mouse.
663 This must be bound to a button-down mouse event.
664 In Transient Mark mode, the highlighting remains as long as the mark
665 remains active. Otherwise, it remains until the next input event."
667 ;; Give temporary modes such as isearch a chance to turn off.
673 "Look for a property at click position.
674 POS may be either a buffer position or a click position like
675 those returned from `event-start'. If the click position is on
676 a string, the text property PROPERTY is examined.
677 If this is nil or the click is not on a string, then
678 the corresponding buffer position is searched for PROPERTY.
679 If PROPERTY is encountered in one of those places,
680 its value is returned."
686 ;; Mouse clicks in the fringe come with a position in
687 ;; (nth 5). This is useful but is not exactly where we clicked, so
688 ;; don't look up that position's properties!
690 left-margin right-margin)))
695 "Return non-nil if POS is on a link in the current buffer.
696 POS must be a buffer position in the current buffer or a mouse
697 event location in the selected window (see `event-start').
698 However, if `mouse-1-click-in-non-selected-windows' is non-nil,
699 POS may be a mouse event location in any window.
701 A clickable link is identified by one of the following methods:
703 - If the character at POS has a non-nil `follow-link' text or
704 overlay property, the value of that property determines what to do.
706 - If there is a local key-binding or a keybinding at position POS
707 for the `follow-link' event, the binding of that event determines
708 what to do.
710 The resulting value determine whether POS is inside a link:
712 - If the value is `mouse-face', POS is inside a link if there
713 is a non-nil `mouse-face' property at POS. Return t in this case.
715 - If the value is a function, FUNC, POS is inside a link if
716 the call \(FUNC POS) returns non-nil. Return the return value
717 from that call. Arg is \(posn-point POS) if POS is a mouse event.
719 - Otherwise, return the value itself.
721 The return value is interpreted as follows:
723 - If it is a string, the mouse-1 event is translated into the
724 first character of the string, i.e. the action of the mouse-1
725 click is the local or global binding of that character.
727 - If it is a vector, the mouse-1 event is translated into the
728 first element of that vector, i.e. the action of the mouse-1
729 click is the local or global binding of that event.
731 - Otherwise, the mouse-1 event is translated into a mouse-2 event
732 at the same position."
735 mouse-1-click-in-non-selected-windows
746 ;; FIXME: This seems questionable if the click is not in a buffer.
747 ;; Should we instead decide that `action' takes a `posn'?
755 "Fix help message MSG for `mouse-1-click-follows-link'."
775 msg)
778 "Track mouse drags by highlighting area between point and cursor.
779 The region will be defined with mark and point."
784 ;; We've recorded what we needed from the current buffer and
785 ;; window, now let's jump to the place of the event, where things
786 ;; are happening.
797 ;; Don't count the mode line.
800 ;; Suppress automatic hscrolling, because that is a nuisance
801 ;; when setting point near the right fringe (but see below).
805 ;; In case the down click is in the middle of some intangible text,
806 ;; use the end of that text, and put it in START-POINT.
811 ;; Activate the region, using `mouse-start-end' to determine where
812 ;; to put point and mark (e.g., double-click will select a word).
834 ;; As soon as the user moves, we can re-enable auto-hscroll.
836 ;; And remember that we have moved, so mouse-set-region can know
837 ;; its event is really a drag event.
842 end-point click-count)
848 nil start-point))
851 nil start-point))))))))
852 map)
874 ;; Commands to handle xterm-style multiple clicks.
876 "Skip over word, over whitespace, or over identical punctuation.
877 If DIR is positive skip forward; if negative, skip backward."
881 ;; Here, we can't use skip-syntax-forward/backward because
882 ;; they don't pay attention to word-separating-categories,
883 ;; and thus they will skip over a true word boundary. So,
884 ;; we simulate the original behavior by using forward-word.
906 "Return a list of region bounds based on START and END according to MODE.
907 If MODE is 0 then set point to (min START END), mark to (max START END).
908 If MODE is 1 then set point to start of word at (min START END),
909 mark to end of word at (max START END).
910 If MODE is 2 then do the same for lines."
914 end temp)))
978 \f
979 ;; Subroutine: set the mark where CLICK happened,
980 ;; but don't do anything else.
997 ;; Use reverse, not nreverse, since event-modifiers
998 ;; does not copy the list it returns.
1001 event)))
1005 t
1007 nil)))
1009 ;; Momentarily show where the mark is, if highlighting doesn't show it.
1012 "Set mark at the position clicked on with the mouse.
1013 Display cursor at that position for a second.
1014 This must be bound to a mouse click."
1018 ;; We don't use save-excursion because that preserves the mark too.
1028 "Kill the region between point and the mouse click.
1040 "Insert the last stretch of killed text at the position clicked on.
1041 Also move point to one end of the text thus inserted (normally the end),
1042 and set mark at the beginning.
1044 If `mouse-yank-at-point' is non-nil, insert at point
1045 regardless of where you click."
1047 ;; Give temporary modes such as isearch a chance to turn off.
1050 ;; Without this, confusing things happen upon e.g. inserting into
1051 ;; the middle of an active region.
1059 "Insert the primary selection at the position clicked on.
1060 Move point to the end of the inserted text, and set mark at
1061 beginning. If `mouse-yank-at-point' is non-nil, insert at point
1062 regardless of where you click."
1064 ;; Give temporary modes such as isearch a chance to turn off.
1066 ;; Without this, confusing things happen upon e.g. inserting into
1067 ;; the middle of an active region.
1077 "Copy the region between point and the mouse click in the kill ring.
1084 ;; This function used to delete the text between point and the mouse
1085 ;; whenever it was equal to the front of the kill ring, but some
1086 ;; people found that confusing.
1088 ;; The position of the last invocation of `mouse-save-then-kill'.
1092 ;; We must make our own undo boundaries
1093 ;; because they happen automatically only for the current buffer.
1096 ;; If we have no undo list in this buffer,
1097 ;; just delete.
1099 ;; Delete, but make the undo-list entry share with the kill ring.
1100 ;; First, delete just one char, so in case buffer is being modified
1101 ;; for the first time, the undo list records that fact.
1106 ;; Undo that deletion--but don't change the undo list!
1109 ;; Now delete the rest of the specified region,
1110 ;; but don't record it.
1116 ;; Search back in buffer-undo-list for the string
1117 ;; that came from deleting one character.
1120 ;; Replace it with an entry for the entire deleted text.
1126 "Set the region according to CLICK; the second time, kill it.
1127 CLICK should be a mouse click event.
1129 If the region is inactive, activate it temporarily. Set mark at
1130 the original point, and move point to the position of CLICK.
1132 If the region is already active, adjust it. Normally, do this by
1133 moving point or mark, whichever is closer, to CLICK. But if you
1134 have selected whole words or lines, move point or mark to the
1135 word or line boundary closest to CLICK instead.
1137 If `mouse-drag-copy-region' is non-nil, this command also saves the
1138 new region to the kill ring (replacing the previous kill if the
1139 previous region was just saved to the kill ring).
1141 If this command is called a second consecutive time with the same
1142 CLICK position, kill the region (or delete it
1143 if `mouse-drag-copy-region' is non-nil)"
1150 ;; Don't let a subsequent kill command append to this one.
1152 ;; Check if the user has multi-clicked to select words/lines.
1156 mouse-selection-click-count
1160 ;; If the user clicked without moving point, kill the region.
1161 ;; This also resets `mouse-selection-click-count'.
1166 ;; Region already saved in the previous click;
1167 ;; don't make a duplicate entry, just delete.
1173 ;; Otherwise, if there is a suitable region, adjust it by moving
1174 ;; one end (whichever is closer) to CLICK-PT.
1179 mouse-save-then-kill-posn)
1181 mouse-set-region))
1193 ;; Region already copied to kill-ring once, so replace.
1195 ;; Arrange for a repeated mouse-3 to kill the region.
1198 ;; Otherwise, set the mark where point is and move to CLICK-PT.
1210 \f
1221 ol)
1222 "An overlay which records the current secondary selection.
1227 ;; A marker which records the specified first end for a secondary selection.
1228 ;; May be nil.
1232 "Set one end of the secondary selection to the position clicked on.
1234 and complete the secondary selection."
1239 ;; Cancel any preexisting secondary selection.
1248 "Set the secondary selection to the text that the mouse is dragged over.
1249 This must be bound to a mouse drag event."
1253 beg
1260 'SECONDARY
1265 "Set the secondary selection to the text that the mouse is dragged over.
1266 Highlight the drag area as you move the mouse.
1267 This must be bound to a button-down mouse event.
1268 The function returns a non-nil value if it creates a secondary selection."
1279 ;; Don't count the mode line.
1285 ;; Double or triple press: make an initial selection
1286 ;; of one word or line.
1291 ;; Single-press: cancel any preexisting secondary selection.
1296 ;; FIXME: Use mouse-drag-track!
1305 nil
1309 ;; Are we moving within the original window?
1313 click-count)))
1326 mouse-secondary-overlay start-point))
1329 mouse-secondary-overlay start-point)))))))))
1340 nil))
1342 'SECONDARY
1347 "Insert the secondary selection at the position clicked on.
1348 Move point to the end of the inserted text.
1349 If `mouse-yank-at-point' is non-nil, insert at point
1350 regardless of where you click."
1352 ;; Give temporary modes such as isearch a chance to turn off.
1361 "Kill the text in the secondary selection.
1362 This is intended more as a keyboard command than as a mouse command
1363 but it can work as either one.
1365 The current buffer (in case of keyboard use), or the buffer clicked on,
1366 must be the one that the secondary selection is in. This requirement
1367 is to prevent accidents."
1383 "Set the secondary selection and save it to the kill ring.
1384 The second time, kill it. CLICK should be a mouse click event.
1386 If you have not called `mouse-start-secondary' in the clicked
1387 buffer, activate the secondary selection and set it between point
1388 and the click position CLICK.
1390 Otherwise, adjust the bounds of the secondary selection.
1391 Normally, do this by moving its beginning or end, whichever is
1392 closer, to CLICK. But if you have selected whole words or lines,
1393 adjust to the word or line boundary closest to CLICK instead.
1395 If this command is called a second consecutive time with the same
1396 CLICK position, kill the secondary selection."
1403 ;; Don't let a subsequent kill command append to this one.
1405 ;; Check if the user has multi-clicked to select words/lines.
1408 mouse-secondary-click-count
1416 ;; If the secondary selection is not active in BUF, activate it.
1426 ;; If the user clicked without moving point, delete the secondary
1427 ;; selection. This also resets `mouse-secondary-click-count'.
1436 ;; Otherwise, if there is a suitable secondary selection overlay,
1437 ;; adjust it by moving one end (whichever is closer) to CLICK-PT.
1446 ;; If the front of the kill ring comes from an immediately
1447 ;; previous use of this command, replace the entry.
1451 t)
1457 ;; Otherwise, set the secondary selection overlay.
1461 ;; All we have is one end of a selection, so put the other
1462 ;; end here.
1468 ;; Finally, set the window system's secondary selection.
1476 \f
1478 "Number of buffers in one pane (submenu) of the buffer menu.
1479 If we have lots of buffers, divide them into groups of
1480 `mouse-buffer-menu-maxlen' and make a pane (or submenu) for each one."
1487 will split the buffer menu by the major modes (see
1488 `mouse-buffer-menu-mode-groups') or just by menu length.
1489 Set to 1 (or even 0!) if you want to group by major mode always, and to
1490 a large number if you prefer a mixed multitude. The default is 4."
1506 ("Threads\\|Memory\\|Disassembly\\|Breakpoints\\|Frames\\|Locals\\|Registers\\|Inferior I/O\\|Debugger"
1510 Each element has the form (REGEXP . GROUPNAME).
1514 "Pop up a menu of buffers for selection with the mouse.
1515 This switches buffers in the window that you clicked on,
1516 and selects that window."
1524 window))
1528 ;; Make an alist of elements that look like (MENU-ITEM . BUFFER).
1531 ;; Divide all buffers into buckets for various major modes.
1532 ;; Each bucket looks like (MODE NAMESTRING BUFFERS...).
1542 adjusted-major-mode
1547 ;; Compute the sum of squares of sizes of the major-mode buckets.
1552 (+ sum-of-squares
1557 ;; Subdividing by major modes really helps, so let's do it.
1559 ;; Sort the list to put the most popular major modes first.
1564 ;; Make a separate submenu for each major mode
1565 ;; that has more than one buffer,
1566 ;; unless all the remaining buffers are less than 1/10 of them.
1576 this-mode-list)
1577 subdivided-menus))))
1581 ;; If any major modes are left over,
1582 ;; make a single submenu for them.
1586 ;; we don't need split-by-major-mode any more,
1587 ;; so we can ditch it with nconc.
1592 subdivided-menus)))))
1601 head)
1630 list-buffers-directory)))
1632 elt)
1633 head))))
1635 ;; Compensate for the reversal that the above loop does.
1639 ;; If we have lots of buffers, divide them into groups of 20
1640 ;; and make a pane (or submenu) for each one.
1645 ;; Pull off the next mouse-buffer-menu-maxlen buffers
1646 ;; and make them the next element of sublist.
1650 nil))
1652 sublists))
1656 ;; Few buffers--put them all in one pane.
1658 \f
1662 ;; Font selection.
1681 ;; For these, we specify the pixel height and width.
1710 ;; We don't seem to have these; who knows what they are.
1711 ;; ("fg-18" "fg-18")
1712 ;; ("fg-25" "fg-25")
1713 ("lucidasanstypewriter-12" "-b&h-lucidatypewriter-medium-r-normal-sans-*-120-*-*-*-*-iso8859-1")
1714 ("lucidasanstypewriter-bold-14" "-b&h-lucidatypewriter-bold-r-normal-sans-*-140-*-*-*-*-iso8859-1")
1717 ;; ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
1718 ;; ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
1719 )))
1725 ;; For these, we specify the point height.
1750 ))))
1756 "Prompt for a font name, using `x-popup-menu', and return it."
1763 last-nonmenu-event
1771 "Set the default font for the selected frame.
1772 The argument FONTS is a list of font names; the first valid font
1773 in this list is used.
1775 When called interactively, pop up a menu and allow the user to
1776 choose a font."
1782 last-nonmenu-event
1784 ;; Append list of fontsets currently defined.
1806 "Show a menu for changing the default face in the current buffer."
1812 nil ; regenerate new fonts
1813 ;; Initialize mouse-appearance-menu-map
1822 ;; Font selector
1826 ;; If the select-font is unavailable, construct a menu.
1835 font-symbol)
1838 '("--"))
1839 (setq font-symbol (intern (cadr font)))
1840 (define-key submenu-map (vector font-symbol)
1841 (list 'menu-item (car font) font-symbol)))))
1842 (define-key font-submenu (vector (intern submenu-name))
1843 (list 'menu-item submenu-name submenu-map))))
1844 (define-key mouse-appearance-menu-map [font-submenu]
1845 (list 'menu-item "Change Text Font" font-submenu)))))
1846 (let ((choice (x-popup-menu event mouse-appearance-menu-map)))
1847 (setq choice (nth (1- (length choice)) choice))
1848 (cond ((eq choice 'text-scale-increase)
1849 (text-scale-increase 1))
1850 ((eq choice 'text-scale-decrease)
1851 (text-scale-increase -1))
1852 ((eq choice 'face-remap-reset-base)
1853 (text-scale-mode 0)
1854 (buffer-face-mode 0))
1855 (choice
1856 ;; Either choice == 'x-select-font, or choice is a
1857 ;; symbol whose name is a font.
1858 (let ((font (if (eq choice 'x-select-font)
1859 (x-select-font)
1860 (symbol-name choice))))
1861 (buffer-face-mode-invoke
1862 (if (fontp font 'font-spec)
1863 (list :font font)
1864 (font-face-attributes font))
1865 t (called-interactively-p 'interactive)))))))))
1867 \f
1868 ;;; Bindings for mouse commands.
1870 (global-set-key [down-mouse-1] 'mouse-drag-region)
1871 (global-set-key [mouse-1] 'mouse-set-point)
1872 (global-set-key [drag-mouse-1] 'mouse-set-region)
1874 (defun mouse--strip-first-event (_prompt)
1875 (substring (this-single-command-raw-keys) 1))
1877 (define-key function-key-map [left-fringe mouse-1] 'mouse--strip-first-event)
1878 (define-key function-key-map [right-fringe mouse-1] 'mouse--strip-first-event)
1880 (global-set-key [mouse-2] 'mouse-yank-primary)
1881 ;; Allow yanking also when the corresponding cursor is "in the fringe".
1882 (define-key function-key-map [right-fringe mouse-2] 'mouse--strip-first-event)
1883 (define-key function-key-map [left-fringe mouse-2] 'mouse--strip-first-event)
1884 (global-set-key [mouse-3] 'mouse-save-then-kill)
1885 (define-key function-key-map [right-fringe mouse-3] 'mouse--strip-first-event)
1886 (define-key function-key-map [left-fringe mouse-3] 'mouse--strip-first-event)
1888 ;; By binding these to down-going events, we let the user use the up-going
1889 ;; event to make the selection, saving a click.
1890 (global-set-key [C-down-mouse-1] 'mouse-buffer-menu)
1891 (if (not (eq system-type 'ms-dos))
1892 (global-set-key [S-down-mouse-1] 'mouse-appearance-menu))
1893 ;; C-down-mouse-2 is bound in facemenu.el.
1894 (global-set-key [C-down-mouse-3]
1895 `(menu-item ,(purecopy "Menu Bar") ignore
1896 :filter (lambda (_)
1897 (if (zerop (or (frame-parameter nil 'menu-bar-lines) 0))
1898 (mouse-menu-bar-map)
1899 (mouse-menu-major-mode-map)))))
1901 ;; Binding mouse-1 to mouse-select-window when on mode-, header-, or
1902 ;; vertical-line prevents Emacs from signaling an error when the mouse
1903 ;; button is released after dragging these lines, on non-toolkit
1904 ;; versions.
1905 (global-set-key [mode-line mouse-1] 'mouse-select-window)
1906 (global-set-key [mode-line drag-mouse-1] 'mouse-select-window)
1907 (global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line)
1908 (global-set-key [header-line down-mouse-1] 'mouse-drag-header-line)
1909 (global-set-key [header-line mouse-1] 'mouse-select-window)
1910 (global-set-key [mode-line mouse-2] 'mouse-delete-other-windows)
1911 (global-set-key [mode-line mouse-3] 'mouse-delete-window)
1912 (global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally)
1913 (global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically)
1914 (global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically)
1915 (global-set-key [vertical-line down-mouse-1] 'mouse-drag-vertical-line)
1916 (global-set-key [right-divider down-mouse-1] 'mouse-drag-vertical-line)
1917 (global-set-key [bottom-divider down-mouse-1] 'mouse-drag-mode-line)
1918 (global-set-key [vertical-line mouse-1] 'mouse-select-window)
1920 (provide 'mouse)
1922 ;;; mouse.el ends here