| blob | 7854d32eb20421a4d7078da5bea26fb183cf019f |
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: "
157 ,indicator
167 "Show minor-mode menu for EVENT on minor modes area of the mode line."
178 ;; Make a keymap in which our last command leads to a menu or
179 ;; default to the edit menu.
183 menu-bar-edit-menu)))
186 newmap))
189 "Return menu keybar MENUBAR, or a lone submenu inside it.
190 If MENUBAR defines exactly one submenu, return just that submenu.
191 Otherwise, return MENUBAR."
198 menubar
202 "Return a keymap equivalent to the menu bar.
203 The contents are the items that would be in the menu bar whether or
204 not it is actually displayed."
209 ;; If a keymap doesn't have a prompt string (a lazy
210 ;; programmer didn't bother to provide one), create it and
211 ;; insert it into the keymap; each keymap gets its own
212 ;; prompt. This is required for non-toolkit versions to
213 ;; display non-empty menu pane names.
226 minor-mode)))
229 menu))
243 ;; Supplying the list is faster than making a new map.
244 ;; FIXME: We have a problem here: we have to use the global/local/minor
245 ;; so they're displayed in the expected order, but later on in the command
246 ;; loop, they're actually looked up in the opposite order.
248 global-menu
249 local-menu
250 minor-mode-menus)))
253 "Pop up a mode-specific menu of mouse commands.
254 Default to the Edit menu if the major mode doesn't define a menu."
261 "Pop up a menu equivalent to the menu bar for keyboard EVENT with PREFIX.
262 The contents are the items that would be in the menu bar whether or
263 not it is actually displayed."
270 "Popup a menu like either `mouse-major-mode-menu' or `mouse-popup-menubar'.
271 Use the former if the menu bar is showing, otherwise the latter."
279 event prefix))
280 \f
281 ;; Commands that operate on windows.
288 ;; Give temporary modes such as isearch a chance to turn off.
292 "Delete the window you click on.
293 Do nothing if the frame has just one window.
294 This command must be bound to a mouse click."
301 "Select the window clicked on; don't move point."
314 "Delete the selected window, and create a new frame displaying its buffer."
325 "Delete all windows except the one you click on."
330 "Select Emacs window mouse is on, then split it vertically in half.
331 The window is split at the line clicked on.
332 This command must be bound to a mouse click."
346 "Select Emacs window mouse is on, then split it horizontally in half.
347 The window is split at the column clicked on.
348 This command must be bound to a mouse click."
362 "Drag a mode line, header line, or vertical line with the mouse.
363 START-EVENT is the starting mouse-event of the drag action. LINE
364 must be one of the symbols `header', `mode', or `vertical'."
365 ;; Give temporary modes such as isearch a chance to turn off.
371 ;; `position' records the x- or y-coordinate of the last
372 ;; sampled position.
378 ;; `last-position' records the x- or y-coordinate of the
379 ;; previously sampled position. The difference of `position'
380 ;; and `last-position' determines the size change of WINDOW.
383 posn-window growth dragged)
384 ;; Decide on whether we are allowed to track at all and whose
385 ;; window's edge we drag.
389 ;; We can't drag the header line of a topmost window.
391 ;; Drag bottom edge of window above the header line.
395 ;; Allow resizing the minibuffer window if it's on the
396 ;; same frame as and immediately below `window', and it's
397 ;; either active or `resize-mini-windows' is nil.
410 nil)
412 ;; Drag right edge of `window'.
415 ;; Set `posn-window' to the window where `event' was recorded.
416 ;; This can be `window' or the window on the left or right of
417 ;; `window'.
419 ;; Add left edge of `posn-window' to `position'.
422 ;; Add width of objects on the left of the text area to
423 ;; `position'.
426 position)))
429 position))))
430 ;; When the cursor overshoots after shrinking a window to its
431 ;; minimum size and the dragging direction changes, have the
432 ;; cursor first catch up with the window edge.
444 ;; Drag bottom edge of `window'.
446 ;; Set `posn-window' to the window where `event' was recorded.
447 ;; This can be either `window' or the window above or below of
448 ;; `window'.
452 ;; Add top edge of `posn-window' to `position'.
454 ;; If necessary, add height of header line to `position'
458 ;; When the cursor overshoots after shrinking a window to its
459 ;; minimum size and the dragging direction changes, have the
460 ;; cursor first catch up with the window edge.
471 ;; Start tracking.
473 ;; Loop reading events and sampling the position of the mouse.
481 ;; Swallow drag-mouse-1 events to avoid selecting some other window.
484 ;; For vertical line dragging swallow also a mouse-1
485 ;; event (but only if we dragged at least once to allow mouse-1
486 ;; clicks to get through).
491 ;; Some of the events will of course end up looked up
492 ;; with a mode-line, header-line or vertical-line prefix ...
496 ;; ... and some maybe even with a right- or bottom-divider
497 ;; prefix.
500 map)
504 "Change the height of a window by dragging on the mode line."
509 "Change the height of a window by dragging on the header line."
514 "Change the width of a window by dragging on the vertical line."
517 \f
519 "Move point to the position clicked on with the mouse.
520 This should be bound to a mouse click event type.
521 If PROMOTE-TO-REGION is non-nil and event is a multiple-click,
522 select the corresponding element around point."
527 ;; Use event-end in case called from mouse-drag-region.
528 ;; If EVENT is a click, event-end and event-start give same value.
536 "Return non-nil if there's an active region that was set with the mouse."
545 "Set the region to the text dragged over, and copy to kill ring.
546 This should be bound to a mouse drag event.
547 See the `mouse-drag-copy-region' variable to control whether this
548 command alters the kill ring or not."
557 ;; Drag events don't come with a click count, sadly, so we hack
558 ;; our way around this problem by remembering the start-event in
559 ;; `mouse-drag-start' and fetching the click-count from there.
563 ;; Occasionally we get spurious drag events where the user hasn't
564 ;; dragged his mouse, but instead Emacs has dragged the text under the
565 ;; user's mouse. Try to recover those cases (bug#17562).
577 ;; Don't set this-command to `kill-region', so a following
578 ;; C-w won't double the text in the kill ring. Ignore
579 ;; `last-command' so we don't append to a preceding kill.
583 ;; On a text terminal, bounce the cursor.
593 ;; Set transient-mark-mode for a little while.
598 transient-mark-mode))))
604 "The pause between scroll steps caused by mouse drags, in seconds.
605 If you drag the mouse beyond the edge of a window, Emacs scrolls the
606 window to bring the text beyond that edge into view, with a delay of
607 this many seconds between scroll steps. Scrolling stops when you move
608 the mouse back into the window, or release the button.
609 This variable's value may be non-integral.
610 Setting this to zero causes Emacs to scroll as fast as it can."
615 "The minimum number of lines scrolled by dragging mouse out of window.
616 Moving the mouse out the top or bottom edge of the window begins
617 scrolling repeatedly. The number of lines scrolled per repetition
618 is normally equal to the number of lines beyond the window edge that
619 the mouse has moved. However, it always scrolls at least the number
620 of lines specified by this variable."
625 "Scroll the window WINDOW, JUMP lines at a time, until new input arrives.
626 If OVERLAY is an overlay, let it stretch from START to the far edge of
627 the newly visible text.
628 Upon exit, point is at the far edge of the newly visible text."
644 ;; window-end doesn't reflect the window's new
645 ;; start position until the next redisplay.
651 ;; Now that we have scrolled WINDOW properly,
652 ;; put point back where it was for the redisplay
653 ;; so that we don't mess up the selected window.
665 "Set the region to the text that the mouse is dragged over.
666 Highlight the drag area as you move the mouse.
667 This must be bound to a button-down mouse event.
668 In Transient Mark mode, the highlighting remains as long as the mark
669 remains active. Otherwise, it remains until the next input event."
671 ;; Give temporary modes such as isearch a chance to turn off.
677 "Look for a property at click position.
678 POS may be either a buffer position or a click position like
679 those returned from `event-start'. If the click position is on
680 a string, the text property PROPERTY is examined.
681 If this is nil or the click is not on a string, then
682 the corresponding buffer position is searched for PROPERTY.
683 If PROPERTY is encountered in one of those places,
684 its value is returned."
690 ;; Mouse clicks in the fringe come with a position in
691 ;; (nth 5). This is useful but is not exactly where we clicked, so
692 ;; don't look up that position's properties!
694 left-margin right-margin)))
699 "Return non-nil if POS is on a link in the current buffer.
700 POS must be a buffer position in the current buffer or a mouse
701 event location in the selected window (see `event-start').
702 However, if `mouse-1-click-in-non-selected-windows' is non-nil,
703 POS may be a mouse event location in any window.
705 A clickable link is identified by one of the following methods:
707 - If the character at POS has a non-nil `follow-link' text or
708 overlay property, the value of that property determines what to do.
710 - If there is a local key-binding or a keybinding at position POS
711 for the `follow-link' event, the binding of that event determines
712 what to do.
714 The resulting value determine whether POS is inside a link:
716 - If the value is `mouse-face', POS is inside a link if there
717 is a non-nil `mouse-face' property at POS. Return t in this case.
719 - If the value is a function, FUNC, POS is inside a link if
720 the call \(FUNC POS) returns non-nil. Return the return value
721 from that call. Arg is \(posn-point POS) if POS is a mouse event.
723 - Otherwise, return the value itself.
725 The return value is interpreted as follows:
727 - If it is a string, the mouse-1 event is translated into the
728 first character of the string, i.e. the action of the mouse-1
729 click is the local or global binding of that character.
731 - If it is a vector, the mouse-1 event is translated into the
732 first element of that vector, i.e. the action of the mouse-1
733 click is the local or global binding of that event.
735 - Otherwise, the mouse-1 event is translated into a mouse-2 event
736 at the same position."
739 mouse-1-click-in-non-selected-windows
750 ;; FIXME: This seems questionable if the click is not in a buffer.
751 ;; Should we instead decide that `action' takes a `posn'?
759 "Fix help message MSG for `mouse-1-click-follows-link'."
779 msg)
782 "Track mouse drags by highlighting area between point and cursor.
783 The region will be defined with mark and point."
788 ;; We've recorded what we needed from the current buffer and
789 ;; window, now let's jump to the place of the event, where things
790 ;; are happening.
801 ;; Don't count the mode line.
804 ;; Suppress automatic hscrolling, because that is a nuisance
805 ;; when setting point near the right fringe (but see below).
809 ;; In case the down click is in the middle of some intangible text,
810 ;; use the end of that text, and put it in START-POINT.
815 ;; Activate the region, using `mouse-start-end' to determine where
816 ;; to put point and mark (e.g., double-click will select a word).
838 ;; As soon as the user moves, we can re-enable auto-hscroll.
840 ;; And remember that we have moved, so mouse-set-region can know
841 ;; its event is really a drag event.
846 end-point click-count)
852 nil start-point))
855 nil start-point))))))))
856 map)
878 ;; Commands to handle xterm-style multiple clicks.
880 "Skip over word, over whitespace, or over identical punctuation.
881 If DIR is positive skip forward; if negative, skip backward."
885 ;; Here, we can't use skip-syntax-forward/backward because
886 ;; they don't pay attention to word-separating-categories,
887 ;; and thus they will skip over a true word boundary. So,
888 ;; we simulate the original behavior by using forward-word.
910 "Return a list of region bounds based on START and END according to MODE.
911 If MODE is 0 then set point to (min START END), mark to (max START END).
912 If MODE is 1 then set point to start of word at (min START END),
913 mark to end of word at (max START END).
914 If MODE is 2 then do the same for lines."
918 end temp)))
982 \f
983 ;; Subroutine: set the mark where CLICK happened,
984 ;; but don't do anything else.
1001 ;; Use reverse, not nreverse, since event-modifiers
1002 ;; does not copy the list it returns.
1005 event)))
1009 t
1011 nil)))
1013 ;; Momentarily show where the mark is, if highlighting doesn't show it.
1016 "Set mark at the position clicked on with the mouse.
1017 Display cursor at that position for a second.
1018 This must be bound to a mouse click."
1022 ;; We don't use save-excursion because that preserves the mark too.
1032 "Kill the region between point and the mouse click.
1044 "Insert the last stretch of killed text at the position clicked on.
1045 Also move point to one end of the text thus inserted (normally the end),
1046 and set mark at the beginning.
1048 If `mouse-yank-at-point' is non-nil, insert at point
1049 regardless of where you click."
1051 ;; Give temporary modes such as isearch a chance to turn off.
1054 ;; Without this, confusing things happen upon e.g. inserting into
1055 ;; the middle of an active region.
1063 "Insert the primary selection at the position clicked on.
1064 Move point to the end of the inserted text, and set mark at
1065 beginning. If `mouse-yank-at-point' is non-nil, insert at point
1066 regardless of where you click."
1068 ;; Give temporary modes such as isearch a chance to turn off.
1070 ;; Without this, confusing things happen upon e.g. inserting into
1071 ;; the middle of an active region.
1081 "Copy the region between point and the mouse click in the kill ring.
1088 ;; This function used to delete the text between point and the mouse
1089 ;; whenever it was equal to the front of the kill ring, but some
1090 ;; people found that confusing.
1092 ;; The position of the last invocation of `mouse-save-then-kill'.
1096 ;; We must make our own undo boundaries
1097 ;; because they happen automatically only for the current buffer.
1100 ;; If we have no undo list in this buffer,
1101 ;; just delete.
1103 ;; Delete, but make the undo-list entry share with the kill ring.
1104 ;; First, delete just one char, so in case buffer is being modified
1105 ;; for the first time, the undo list records that fact.
1110 ;; Undo that deletion--but don't change the undo list!
1113 ;; Now delete the rest of the specified region,
1114 ;; but don't record it.
1120 ;; Search back in buffer-undo-list for the string
1121 ;; that came from deleting one character.
1124 ;; Replace it with an entry for the entire deleted text.
1130 "Set the region according to CLICK; the second time, kill it.
1131 CLICK should be a mouse click event.
1133 If the region is inactive, activate it temporarily. Set mark at
1134 the original point, and move point to the position of CLICK.
1136 If the region is already active, adjust it. Normally, do this by
1137 moving point or mark, whichever is closer, to CLICK. But if you
1138 have selected whole words or lines, move point or mark to the
1139 word or line boundary closest to CLICK instead.
1141 If `mouse-drag-copy-region' is non-nil, this command also saves the
1142 new region to the kill ring (replacing the previous kill if the
1143 previous region was just saved to the kill ring).
1145 If this command is called a second consecutive time with the same
1146 CLICK position, kill the region (or delete it
1147 if `mouse-drag-copy-region' is non-nil)"
1154 ;; Don't let a subsequent kill command append to this one.
1156 ;; Check if the user has multi-clicked to select words/lines.
1160 mouse-selection-click-count
1164 ;; If the user clicked without moving point, kill the region.
1165 ;; This also resets `mouse-selection-click-count'.
1170 ;; Region already saved in the previous click;
1171 ;; don't make a duplicate entry, just delete.
1177 ;; Otherwise, if there is a suitable region, adjust it by moving
1178 ;; one end (whichever is closer) to CLICK-PT.
1183 mouse-save-then-kill-posn)
1185 mouse-set-region))
1197 ;; Region already copied to kill-ring once, so replace.
1199 ;; Arrange for a repeated mouse-3 to kill the region.
1202 ;; Otherwise, set the mark where point is and move to CLICK-PT.
1214 \f
1225 ol)
1226 "An overlay which records the current secondary selection.
1231 ;; A marker which records the specified first end for a secondary selection.
1232 ;; May be nil.
1236 "Set one end of the secondary selection to the position clicked on.
1238 and complete the secondary selection."
1243 ;; Cancel any preexisting secondary selection.
1252 "Set the secondary selection to the text that the mouse is dragged over.
1253 This must be bound to a mouse drag event."
1257 beg
1264 'SECONDARY
1269 "Set the secondary selection to the text that the mouse is dragged over.
1270 Highlight the drag area as you move the mouse.
1271 This must be bound to a button-down mouse event.
1272 The function returns a non-nil value if it creates a secondary selection."
1283 ;; Don't count the mode line.
1289 ;; Double or triple press: make an initial selection
1290 ;; of one word or line.
1295 ;; Single-press: cancel any preexisting secondary selection.
1300 ;; FIXME: Use mouse-drag-track!
1309 nil
1313 ;; Are we moving within the original window?
1317 click-count)))
1330 mouse-secondary-overlay start-point))
1333 mouse-secondary-overlay start-point)))))))))
1344 nil))
1346 'SECONDARY
1351 "Insert the secondary selection at the position clicked on.
1352 Move point to the end of the inserted text.
1353 If `mouse-yank-at-point' is non-nil, insert at point
1354 regardless of where you click."
1356 ;; Give temporary modes such as isearch a chance to turn off.
1365 "Kill the text in the secondary selection.
1366 This is intended more as a keyboard command than as a mouse command
1367 but it can work as either one.
1369 The current buffer (in case of keyboard use), or the buffer clicked on,
1370 must be the one that the secondary selection is in. This requirement
1371 is to prevent accidents."
1387 "Set the secondary selection and save it to the kill ring.
1388 The second time, kill it. CLICK should be a mouse click event.
1390 If you have not called `mouse-start-secondary' in the clicked
1391 buffer, activate the secondary selection and set it between point
1392 and the click position CLICK.
1394 Otherwise, adjust the bounds of the secondary selection.
1395 Normally, do this by moving its beginning or end, whichever is
1396 closer, to CLICK. But if you have selected whole words or lines,
1397 adjust to the word or line boundary closest to CLICK instead.
1399 If this command is called a second consecutive time with the same
1400 CLICK position, kill the secondary selection."
1407 ;; Don't let a subsequent kill command append to this one.
1409 ;; Check if the user has multi-clicked to select words/lines.
1412 mouse-secondary-click-count
1420 ;; If the secondary selection is not active in BUF, activate it.
1430 ;; If the user clicked without moving point, delete the secondary
1431 ;; selection. This also resets `mouse-secondary-click-count'.
1440 ;; Otherwise, if there is a suitable secondary selection overlay,
1441 ;; adjust it by moving one end (whichever is closer) to CLICK-PT.
1450 ;; If the front of the kill ring comes from an immediately
1451 ;; previous use of this command, replace the entry.
1455 t)
1461 ;; Otherwise, set the secondary selection overlay.
1465 ;; All we have is one end of a selection, so put the other
1466 ;; end here.
1472 ;; Finally, set the window system's secondary selection.
1480 \f
1482 "Number of buffers in one pane (submenu) of the buffer menu.
1483 If we have lots of buffers, divide them into groups of
1484 `mouse-buffer-menu-maxlen' and make a pane (or submenu) for each one."
1491 will split the buffer menu by the major modes (see
1492 `mouse-buffer-menu-mode-groups') or just by menu length.
1493 Set to 1 (or even 0!) if you want to group by major mode always, and to
1494 a large number if you prefer a mixed multitude. The default is 4."
1510 ("Threads\\|Memory\\|Disassembly\\|Breakpoints\\|Frames\\|Locals\\|Registers\\|Inferior I/O\\|Debugger"
1514 Each element has the form (REGEXP . GROUPNAME).
1518 "Pop up a menu of buffers for selection with the mouse.
1519 This switches buffers in the window that you clicked on,
1520 and selects that window."
1528 window))
1532 ;; Make an alist of elements that look like (MENU-ITEM . BUFFER).
1535 ;; Divide all buffers into buckets for various major modes.
1536 ;; Each bucket looks like (MODE NAMESTRING BUFFERS...).
1546 adjusted-major-mode
1551 ;; Compute the sum of squares of sizes of the major-mode buckets.
1556 (+ sum-of-squares
1561 ;; Subdividing by major modes really helps, so let's do it.
1563 ;; Sort the list to put the most popular major modes first.
1568 ;; Make a separate submenu for each major mode
1569 ;; that has more than one buffer,
1570 ;; unless all the remaining buffers are less than 1/10 of them.
1580 this-mode-list)
1581 subdivided-menus))))
1585 ;; If any major modes are left over,
1586 ;; make a single submenu for them.
1590 ;; we don't need split-by-major-mode any more,
1591 ;; so we can ditch it with nconc.
1596 subdivided-menus)))))
1605 head)
1634 list-buffers-directory)))
1636 elt)
1637 head))))
1639 ;; Compensate for the reversal that the above loop does.
1643 ;; If we have lots of buffers, divide them into groups of 20
1644 ;; and make a pane (or submenu) for each one.
1649 ;; Pull off the next mouse-buffer-menu-maxlen buffers
1650 ;; and make them the next element of sublist.
1654 nil))
1656 sublists))
1660 ;; Few buffers--put them all in one pane.
1662 \f
1666 ;; Font selection.
1685 ;; For these, we specify the pixel height and width.
1714 ;; We don't seem to have these; who knows what they are.
1715 ;; ("fg-18" "fg-18")
1716 ;; ("fg-25" "fg-25")
1717 ("lucidasanstypewriter-12" "-b&h-lucidatypewriter-medium-r-normal-sans-*-120-*-*-*-*-iso8859-1")
1718 ("lucidasanstypewriter-bold-14" "-b&h-lucidatypewriter-bold-r-normal-sans-*-140-*-*-*-*-iso8859-1")
1721 ;; ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
1722 ;; ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
1723 )))
1729 ;; For these, we specify the point height.
1754 ))))
1760 "Prompt for a font name, using `x-popup-menu', and return it."
1767 last-nonmenu-event
1775 "Set the default font for the selected frame.
1776 The argument FONTS is a list of font names; the first valid font
1777 in this list is used.
1779 When called interactively, pop up a menu and allow the user to
1780 choose a font."
1786 last-nonmenu-event
1788 ;; Append list of fontsets currently defined.
1812 "Show a menu for changing the default face in the current buffer."
1818 nil ; regenerate new fonts
1819 ;; Initialize mouse-appearance-menu-map
1828 ;; Font selector
1831 w32-use-w32-font-dialog))
1834 ;; If the select-font is unavailable, construct a menu.
1838 w32-fixed-font-alist
1839 x-fixed-font-alist)
1846 font-symbol)
1849 '("--"))
1850 (setq font-symbol (intern (cadr font)))
1851 (define-key submenu-map (vector font-symbol)
1852 (list 'menu-item (car font) font-symbol)))))
1853 (define-key font-submenu (vector (intern submenu-name))
1854 (list 'menu-item submenu-name submenu-map))))
1855 (define-key mouse-appearance-menu-map [font-submenu]
1856 (list 'menu-item "Change Text Font" font-submenu)))))
1857 (let ((choice (x-popup-menu event mouse-appearance-menu-map)))
1858 (setq choice (nth (1- (length choice)) choice))
1859 (cond ((eq choice 'text-scale-increase)
1860 (text-scale-increase 1))
1861 ((eq choice 'text-scale-decrease)
1862 (text-scale-increase -1))
1863 ((eq choice 'face-remap-reset-base)
1864 (text-scale-mode 0)
1865 (buffer-face-mode 0))
1866 (choice
1867 ;; Either choice == 'x-select-font, or choice is a
1868 ;; symbol whose name is a font.
1869 (let ((font (if (eq choice 'x-select-font)
1870 (x-select-font)
1871 (symbol-name choice))))
1872 (buffer-face-mode-invoke
1873 (if (fontp font 'font-spec)
1874 (list :font font)
1875 (font-face-attributes font))
1876 t (called-interactively-p 'interactive)))))))))
1878 \f
1879 ;;; Bindings for mouse commands.
1881 (global-set-key [down-mouse-1] 'mouse-drag-region)
1882 (global-set-key [mouse-1] 'mouse-set-point)
1883 (global-set-key [drag-mouse-1] 'mouse-set-region)
1885 (defun mouse--strip-first-event (_prompt)
1886 (substring (this-single-command-raw-keys) 1))
1888 (define-key function-key-map [left-fringe mouse-1] 'mouse--strip-first-event)
1889 (define-key function-key-map [right-fringe mouse-1] 'mouse--strip-first-event)
1891 (global-set-key [mouse-2] 'mouse-yank-primary)
1892 ;; Allow yanking also when the corresponding cursor is "in the fringe".
1893 (define-key function-key-map [right-fringe mouse-2] 'mouse--strip-first-event)
1894 (define-key function-key-map [left-fringe mouse-2] 'mouse--strip-first-event)
1895 (global-set-key [mouse-3] 'mouse-save-then-kill)
1896 (define-key function-key-map [right-fringe mouse-3] 'mouse--strip-first-event)
1897 (define-key function-key-map [left-fringe mouse-3] 'mouse--strip-first-event)
1899 ;; By binding these to down-going events, we let the user use the up-going
1900 ;; event to make the selection, saving a click.
1901 (global-set-key [C-down-mouse-1] 'mouse-buffer-menu)
1902 (if (not (eq system-type 'ms-dos))
1903 (global-set-key [S-down-mouse-1] 'mouse-appearance-menu))
1904 ;; C-down-mouse-2 is bound in facemenu.el.
1905 (global-set-key [C-down-mouse-3]
1906 `(menu-item ,(purecopy "Menu Bar") ignore
1907 :filter (lambda (_)
1908 (if (zerop (or (frame-parameter nil 'menu-bar-lines) 0))
1909 (mouse-menu-bar-map)
1910 (mouse-menu-major-mode-map)))))
1912 ;; Binding mouse-1 to mouse-select-window when on mode-, header-, or
1913 ;; vertical-line prevents Emacs from signaling an error when the mouse
1914 ;; button is released after dragging these lines, on non-toolkit
1915 ;; versions.
1916 (global-set-key [mode-line mouse-1] 'mouse-select-window)
1917 (global-set-key [mode-line drag-mouse-1] 'mouse-select-window)
1918 (global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line)
1919 (global-set-key [header-line down-mouse-1] 'mouse-drag-header-line)
1920 (global-set-key [header-line mouse-1] 'mouse-select-window)
1921 (global-set-key [mode-line mouse-2] 'mouse-delete-other-windows)
1922 (global-set-key [mode-line mouse-3] 'mouse-delete-window)
1923 (global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally)
1924 (global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically)
1925 (global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically)
1926 (global-set-key [vertical-line down-mouse-1] 'mouse-drag-vertical-line)
1927 (global-set-key [right-divider down-mouse-1] 'mouse-drag-vertical-line)
1928 (global-set-key [bottom-divider down-mouse-1] 'mouse-drag-mode-line)
1929 (global-set-key [vertical-line mouse-1] 'mouse-select-window)
1931 (provide 'mouse)
1933 ;;; mouse.el ends here