| blob | 4b4749bb45d8600b7a5c74b9400cfa476cb08e82 |
1 ;;; mouse.el --- window system-independent mouse support -*- lexical-binding: t -*-
3 ;; Copyright (C) 1993-1995, 1999-2016 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.
43 "If non-nil, mouse yank commands yank at point instead of at click."
48 "If non-nil, copy to kill-ring upon mouse adjustments of the region.
51 addition to mouse drags."
57 "Non-nil means that clicking Mouse-1 on a link follows the link.
59 With the default setting, an ordinary Mouse-1 click on a link
60 performs the same action as Mouse-2 on that link, while a longer
61 Mouse-1 click \(hold down the Mouse-1 button for more than 450
62 milliseconds) performs the original Mouse-1 binding \(which
63 typically sets point where you click the mouse).
65 If value is an integer, the time elapsed between pressing and
66 releasing the mouse button determines whether to follow the link
67 or perform the normal Mouse-1 action (typically set point).
68 The absolute numeric value specifies the maximum duration of a
70 short click follows the link, and a longer click performs the
71 normal action. A negative value gives the opposite behavior.
73 If value is `double', a double click follows the link.
75 Otherwise, a single Mouse-1 click unconditionally follows the link.
77 Note that dragging the mouse never follows the link.
79 This feature only works in modes that specifically identify
80 clickable text as links, so it may not work with some external
81 packages. See `mouse-on-link-p' for details."
90 "If non-nil, a Mouse-1 click also follows links in non-selected windows.
92 If nil, a Mouse-1 click on a link in a non-selected window performs
93 the normal mouse-1 binding, typically selects the window and sets
94 point at the click position."
100 "Turn `mouse-1' events into `mouse-2' events if follows-link.
101 Expects to be bound to `down-mouse-1' in `key-translation-map'."
118 nil
119 ;; Use read-key so it works for xterm-mouse-mode!
125 ;; Turn the mouse-1 into a mouse-2 to follow links,
126 ;; but only if ‘mouse-on-link-p’ hasn’t returned a
127 ;; string or vector (see its docstring).
132 ;; If mouse-2 has never been done by the user, it
133 ;; doesn't have the necessary property to be
134 ;; interpreted correctly.
138 ;; Don't change the down event, only the up-event
139 ;; (bug#18212).
140 nil)
142 nil))))))))
149 \f
150 ;; Provide a mode-specific menu on a mouse button.
153 "Show menu for minor mode specified by INDICATOR.
154 Interactively, INDICATOR is read using completion.
155 If there is no menu defined for the minor mode, then create one with
156 items `Turn Off' and `Help'."
159 "Minor mode indicator: "
171 ,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)))
200 newmap))
203 "Return menu keybar MENUBAR, or a lone submenu inside it.
204 If MENUBAR defines exactly one submenu, return just that submenu.
205 Otherwise, return MENUBAR."
212 menubar
216 "Return a keymap equivalent to the menu bar.
217 The contents are the items that would be in the menu bar whether or
218 not it is actually displayed."
223 ;; If a keymap doesn't have a prompt string (a lazy
224 ;; programmer didn't bother to provide one), create it and
225 ;; insert it into the keymap; each keymap gets its own
226 ;; prompt. This is required for non-toolkit versions to
227 ;; display non-empty menu pane names.
240 minor-mode)))
243 menu))
257 ;; Supplying the list is faster than making a new map.
258 ;; FIXME: We have a problem here: we have to use the global/local/minor
259 ;; so they're displayed in the expected order, but later on in the command
260 ;; loop, they're actually looked up in the opposite order.
262 global-menu
263 local-menu
264 minor-mode-menus)))
267 "Pop up a mode-specific menu of mouse commands.
268 Default to the Edit menu if the major mode doesn't define a menu."
275 "Pop up a menu equivalent to the menu bar for keyboard EVENT with PREFIX.
276 The contents are the items that would be in the menu bar whether or
277 not it is actually displayed."
284 "Popup a menu like either `mouse-major-mode-menu' or `mouse-popup-menubar'.
285 Use the former if the menu bar is showing, otherwise the latter."
293 event prefix))
294 \f
295 ;; Commands that operate on windows.
302 ;; Give temporary modes such as isearch a chance to turn off.
306 "Delete the window you click on.
307 Do nothing if the frame has just one window.
308 This command must be bound to a mouse click."
315 "Select the window clicked on; don't move point."
328 "Delete the selected window, 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."
356 ;; Bind `window-combination-resize' to nil so we are sure to get
357 ;; the split right at the line clicked on.
363 "Select Emacs window mouse is on, then split it horizontally in half.
364 The window is split at the column clicked on.
365 This command must be bound to a mouse click."
375 ;; Bind `window-combination-resize' to nil so we are sure to get
376 ;; the split right at the column clicked on.
382 "Drag a mode line, header line, or vertical line with the mouse.
383 START-EVENT is the starting mouse-event of the drag action. LINE
384 must be one of the symbols `header', `mode', or `vertical'."
385 ;; Give temporary modes such as isearch a chance to turn off.
391 ;; `position' records the x- or y-coordinate of the last
392 ;; sampled position.
398 ;; `last-position' records the x- or y-coordinate of the
399 ;; previously sampled position. The difference of `position'
400 ;; and `last-position' determines the size change of WINDOW.
403 posn-window growth dragged)
404 ;; Decide on whether we are allowed to track at all and whose
405 ;; window's edge we drag.
409 ;; We can't drag the header line of a topmost window.
411 ;; Drag bottom edge of window above the header line.
415 ;; Allow resizing the minibuffer window if it's on the
416 ;; same frame as and immediately below `window', and it's
417 ;; either active or `resize-mini-windows' is nil.
436 nil)
438 ;; Drag right edge of `window'.
441 ;; Set `posn-window' to the window where `event' was recorded.
442 ;; This can be `window' or the window on the left or right of
443 ;; `window'.
445 ;; Add left edge of `posn-window' to `position'.
448 ;; Add width of objects on the left of the text area to
449 ;; `position'.
452 position)))
455 position))))
456 ;; When the cursor overshoots after shrinking a window to its
457 ;; minimum size and the dragging direction changes, have the
458 ;; cursor first catch up with the window edge.
470 ;; Drag bottom edge of `window'.
472 ;; Set `posn-window' to the window where `event' was recorded.
473 ;; This can be either `window' or the window above or below of
474 ;; `window'.
478 ;; Add top edge of `posn-window' to `position'.
480 ;; If necessary, add height of header line to `position'
484 ;; When the cursor overshoots after shrinking a window to its
485 ;; minimum size and the dragging direction changes, have the
486 ;; cursor first catch up with the window edge.
497 ;; Start tracking. The special value 'dragging' signals the
498 ;; display engine to freeze the mouse pointer shape for as long
499 ;; as we drag.
501 ;; Loop reading events and sampling the position of the mouse.
509 ;; Swallow drag-mouse-1 events to avoid selecting some other window.
512 ;; For vertical line dragging swallow also a mouse-1
513 ;; event (but only if we dragged at least once to allow mouse-1
514 ;; clicks to get through).
519 ;; Some of the events will of course end up looked up
520 ;; with a mode-line, header-line or vertical-line prefix ...
524 ;; ... and some maybe even with a right- or bottom-divider
525 ;; prefix.
528 map)
532 "Change the height of a window by dragging on the mode line."
537 "Change the height of a window by dragging on the header line."
542 "Change the width of a window by dragging on the vertical line."
545 \f
547 "Effect of selecting a region extending backward from double click.
548 Nil means keep point at the position clicked (region end);
549 non-nil means move point to beginning of region."
556 "Move point to the position clicked on with the mouse.
557 This should be bound to a mouse click event type.
558 If PROMOTE-TO-REGION is non-nil and event is a multiple-click, select
559 the corresponding element around point, with the resulting position of
560 point determined by `mouse-select-region-move-to-beginning'."
569 ;; Use event-end in case called from mouse-drag-region.
570 ;; If EVENT is a click, event-end and event-start give same value.
578 "Return non-nil if there's an active region that was set with the mouse."
587 "Set the region to the text dragged over, and copy to kill ring.
588 This should be bound to a mouse drag event.
589 See the `mouse-drag-copy-region' variable to control whether this
590 command alters the kill ring or not."
598 ;; If the mouse ends up in any other window or on the menu
599 ;; bar, use `window-point' of selected window (Bug#23707).
604 ;; Drag events don't come with a click count, sadly, so we hack
605 ;; our way around this problem by remembering the start-event in
606 ;; `mouse-drag-start' and fetching the click-count from there.
610 ;; Occasionally we get spurious drag events where the user hasn't
611 ;; dragged his mouse, but instead Emacs has dragged the text under the
612 ;; user's mouse. Try to recover those cases (bug#17562).
624 ;; Don't set this-command to `kill-region', so a following
625 ;; C-w won't double the text in the kill ring. Ignore
626 ;; `last-command' so we don't append to a preceding kill.
630 ;; On a text terminal, bounce the cursor.
640 ;; Set transient-mark-mode for a little while.
645 transient-mark-mode))))
651 "The pause between scroll steps caused by mouse drags, in seconds.
652 If you drag the mouse beyond the edge of a window, Emacs scrolls the
653 window to bring the text beyond that edge into view, with a delay of
654 this many seconds between scroll steps. Scrolling stops when you move
655 the mouse back into the window, or release the button.
656 This variable's value may be non-integral.
657 Setting this to zero causes Emacs to scroll as fast as it can."
662 "The minimum number of lines scrolled by dragging mouse out of window.
663 Moving the mouse out the top or bottom edge of the window begins
664 scrolling repeatedly. The number of lines scrolled per repetition
665 is normally equal to the number of lines beyond the window edge that
666 the mouse has moved. However, it always scrolls at least the number
667 of lines specified by this variable."
672 "Scroll the window WINDOW, JUMP lines at a time, until new input arrives.
673 If OVERLAY is an overlay, let it stretch from START to the far edge of
674 the newly visible text.
675 Upon exit, point is at the far edge of the newly visible text."
691 ;; window-end doesn't reflect the window's new
692 ;; start position until the next redisplay.
698 ;; Now that we have scrolled WINDOW properly,
699 ;; put point back where it was for the redisplay
700 ;; so that we don't mess up the selected window.
712 "Set the region to the text that the mouse is dragged over.
713 Highlight the drag area as you move the mouse.
714 This must be bound to a button-down mouse event.
715 In Transient Mark mode, the highlighting remains as long as the mark
716 remains active. Otherwise, it remains until the next input event."
718 ;; Give temporary modes such as isearch a chance to turn off.
724 "Look for a property at click position.
725 POS may be either a buffer position or a click position like
726 those returned from `event-start'. If the click position is on
727 a string, the text property PROPERTY is examined.
728 If this is nil or the click is not on a string, then
729 the corresponding buffer position is searched for PROPERTY.
730 If PROPERTY is encountered in one of those places,
731 its value is returned."
737 ;; Mouse clicks in the fringe come with a position in
738 ;; (nth 5). This is useful but is not exactly where we clicked, so
739 ;; don't look up that position's properties!
741 left-margin right-margin)))
746 "Return non-nil if POS is on a link in the current buffer.
747 POS must be a buffer position in the current buffer or a mouse
748 event location in the selected window (see `event-start').
749 However, if `mouse-1-click-in-non-selected-windows' is non-nil,
750 POS may be a mouse event location in any window.
752 A clickable link is identified by one of the following methods:
754 - If the character at POS has a non-nil `follow-link' text or
755 overlay property, the value of that property determines what to do.
757 - If there is a local key-binding or a keybinding at position POS
758 for the `follow-link' event, the binding of that event determines
759 what to do.
761 The resulting value determine whether POS is inside a link:
763 - If the value is `mouse-face', POS is inside a link if there
764 is a non-nil `mouse-face' property at POS. Return t in this case.
766 - If the value is a function, FUNC, POS is inside a link if
767 the call \(FUNC POS) returns non-nil. Return the return value
768 from that call. Arg is \(posn-point POS) if POS is a mouse event.
770 - Otherwise, return the value itself.
772 The return value is interpreted as follows:
774 - If it is a string, the mouse-1 event is translated into the
775 first character of the string, i.e. the action of the mouse-1
776 click is the local or global binding of that character.
778 - If it is a vector, the mouse-1 event is translated into the
779 first element of that vector, i.e. the action of the mouse-1
780 click is the local or global binding of that event.
782 - Otherwise, the mouse-1 event is translated into a mouse-2 event
783 at the same position."
786 mouse-1-click-in-non-selected-windows
797 ;; FIXME: This seems questionable if the click is not in a buffer.
798 ;; Should we instead decide that `action' takes a `posn'?
806 "Fix help message MSG for `mouse-1-click-follows-link'."
826 msg)
829 "Track mouse drags by highlighting area between point and cursor.
830 The region will be defined with mark and point."
840 ;; We've recorded what we needed from the current buffer and
841 ;; window, now let's jump to the place of the event, where things
842 ;; are happening.
850 ;; Don't count the mode line.
853 ;; Suppress automatic hscrolling, because that is a nuisance
854 ;; when setting point near the right fringe (but see below).
858 ;; In case the down click is in the middle of some intangible text,
859 ;; use the end of that text, and put it in START-POINT.
864 ;; Activate the region, using `mouse-start-end' to determine where
865 ;; to put point and mark (e.g., double-click will select a word).
887 ;; As soon as the user moves, we can re-enable auto-hscroll.
889 ;; And remember that we have moved, so mouse-set-region can know
890 ;; its event is really a drag event.
895 end-point click-count)
901 nil start-point))
904 nil start-point))))))))
905 map)
927 ;; Commands to handle xterm-style multiple clicks.
929 "Skip over word, over whitespace, or over identical punctuation.
930 If DIR is positive skip forward; if negative, skip backward."
934 ;; Here, we can't use skip-syntax-forward/backward because
935 ;; they don't pay attention to word-separating-categories,
936 ;; and thus they will skip over a true word boundary. So,
937 ;; we simulate the original behavior by using forward-word.
959 "Return a list of region bounds based on START and END according to MODE.
960 If MODE is 0 then set point to (min START END), mark to (max START END).
961 If MODE is 1 then set point to start of word at (min START END),
962 mark to end of word at (max START END).
963 If MODE is 2 then do the same for lines."
967 end temp)))
976 ;; This happens in CC Mode when unbalanced parens in CPP
977 ;; constructs are given punctuation syntax with
978 ;; syntax-table text properties. (2016-02-21).
980 start start))
991 ;; See above comment about CC Mode.
1040 \f
1041 ;; Subroutine: set the mark where CLICK happened,
1042 ;; but don't do anything else.
1059 ;; Use reverse, not nreverse, since event-modifiers
1060 ;; does not copy the list it returns.
1063 event)))
1067 t
1069 nil)))
1071 ;; Momentarily show where the mark is, if highlighting doesn't show it.
1074 "Set mark at the position clicked on with the mouse.
1075 Display cursor at that position for a second.
1076 This must be bound to a mouse click."
1080 ;; FIXME: Use save-excursion
1090 "Kill the region between point and the mouse click.
1102 "Insert the last stretch of killed text at the position clicked on.
1103 Also move point to one end of the text thus inserted (normally the end),
1104 and set mark at the beginning.
1106 If `mouse-yank-at-point' is non-nil, insert at point
1107 regardless of where you click."
1109 ;; Give temporary modes such as isearch a chance to turn off.
1112 ;; Without this, confusing things happen upon e.g. inserting into
1113 ;; the middle of an active region.
1121 "Insert the primary selection at the position clicked on.
1122 Move point to the end of the inserted text, and set mark at
1123 beginning. If `mouse-yank-at-point' is non-nil, insert at point
1124 regardless of where you click."
1126 ;; Give temporary modes such as isearch a chance to turn off.
1128 ;; Without this, confusing things happen upon e.g. inserting into
1129 ;; the middle of an active region.
1139 "Copy the region between point and the mouse click in the kill ring.
1146 ;; This function used to delete the text between point and the mouse
1147 ;; whenever it was equal to the front of the kill ring, but some
1148 ;; people found that confusing.
1150 ;; The position of the last invocation of `mouse-save-then-kill'.
1154 ;; We must make our own undo boundaries
1155 ;; because they happen automatically only for the current buffer.
1158 ;; If we have no undo list in this buffer,
1159 ;; just delete.
1161 ;; Delete, but make the undo-list entry share with the kill ring.
1162 ;; First, delete just one char, so in case buffer is being modified
1163 ;; for the first time, the undo list records that fact.
1168 ;; Undo that deletion--but don't change the undo list!
1171 ;; Now delete the rest of the specified region,
1172 ;; but don't record it.
1178 ;; Search back in buffer-undo-list for the string
1179 ;; that came from deleting one character.
1182 ;; Replace it with an entry for the entire deleted text.
1188 "Set the region according to CLICK; the second time, kill it.
1189 CLICK should be a mouse click event.
1191 If the region is inactive, activate it temporarily. Set mark at
1192 the original point, and move point to the position of CLICK.
1194 If the region is already active, adjust it. Normally, do this by
1195 moving point or mark, whichever is closer, to CLICK. But if you
1196 have selected whole words or lines, move point or mark to the
1197 word or line boundary closest to CLICK instead.
1199 If `mouse-drag-copy-region' is non-nil, this command also saves the
1200 new region to the kill ring (replacing the previous kill if the
1201 previous region was just saved to the kill ring).
1203 If this command is called a second consecutive time with the same
1204 CLICK position, kill the region (or delete it
1205 if `mouse-drag-copy-region' is non-nil)"
1212 ;; Don't let a subsequent kill command append to this one.
1214 ;; Check if the user has multi-clicked to select words/lines.
1218 mouse-selection-click-count
1222 ;; If the user clicked without moving point, kill the region.
1223 ;; This also resets `mouse-selection-click-count'.
1228 ;; Region already saved in the previous click;
1229 ;; don't make a duplicate entry, just delete.
1235 ;; Otherwise, if there is a suitable region, adjust it by moving
1236 ;; one end (whichever is closer) to CLICK-PT.
1241 mouse-save-then-kill-posn)
1243 mouse-set-region))
1255 ;; Region already copied to kill-ring once, so replace.
1257 ;; Arrange for a repeated mouse-3 to kill the region.
1260 ;; Otherwise, set the mark where point is and move to CLICK-PT.
1272 \f
1283 ol)
1284 "An overlay which records the current secondary selection.
1289 ;; A marker which records the specified first end for a secondary selection.
1290 ;; May be nil.
1294 "Set one end of the secondary selection to the position clicked on.
1296 and complete the secondary selection."
1301 ;; Cancel any preexisting secondary selection.
1310 "Set the secondary selection to the text that the mouse is dragged over.
1311 This must be bound to a mouse drag event."
1315 beg
1322 'SECONDARY
1327 "Set the secondary selection to the text that the mouse is dragged over.
1328 Highlight the drag area as you move the mouse.
1329 This must be bound to a button-down mouse event.
1330 The function returns a non-nil value if it creates a secondary selection."
1341 ;; Don't count the mode line.
1347 ;; Double or triple press: make an initial selection
1348 ;; of one word or line.
1353 ;; Single-press: cancel any preexisting secondary selection.
1358 ;; FIXME: Use mouse-drag-track!
1367 nil
1371 ;; Are we moving within the original window?
1375 click-count)))
1388 mouse-secondary-overlay start-point))
1391 mouse-secondary-overlay start-point)))))))))
1402 nil))
1404 'SECONDARY
1409 "Insert the secondary selection at the position clicked on.
1410 Move point to the end of the inserted text.
1411 If `mouse-yank-at-point' is non-nil, insert at point
1412 regardless of where you click."
1414 ;; Give temporary modes such as isearch a chance to turn off.
1423 "Kill the text in the secondary selection.
1424 This is intended more as a keyboard command than as a mouse command
1425 but it can work as either one.
1427 The current buffer (in case of keyboard use), or the buffer clicked on,
1428 must be the one that the secondary selection is in. This requirement
1429 is to prevent accidents."
1445 "Set the secondary selection and save it to the kill ring.
1446 The second time, kill it. CLICK should be a mouse click event.
1448 If you have not called `mouse-start-secondary' in the clicked
1449 buffer, activate the secondary selection and set it between point
1450 and the click position CLICK.
1452 Otherwise, adjust the bounds of the secondary selection.
1453 Normally, do this by moving its beginning or end, whichever is
1454 closer, to CLICK. But if you have selected whole words or lines,
1455 adjust to the word or line boundary closest to CLICK instead.
1457 If this command is called a second consecutive time with the same
1458 CLICK position, kill the secondary selection."
1465 ;; Don't let a subsequent kill command append to this one.
1467 ;; Check if the user has multi-clicked to select words/lines.
1470 mouse-secondary-click-count
1478 ;; If the secondary selection is not active in BUF, activate it.
1488 ;; If the user clicked without moving point, delete the secondary
1489 ;; selection. This also resets `mouse-secondary-click-count'.
1498 ;; Otherwise, if there is a suitable secondary selection overlay,
1499 ;; adjust it by moving one end (whichever is closer) to CLICK-PT.
1508 ;; If the front of the kill ring comes from an immediately
1509 ;; previous use of this command, replace the entry.
1513 t)
1519 ;; Otherwise, set the secondary selection overlay.
1523 ;; All we have is one end of a selection, so put the other
1524 ;; end here.
1530 ;; Finally, set the window system's secondary selection.
1538 \f
1540 "Number of buffers in one pane (submenu) of the buffer menu.
1541 If we have lots of buffers, divide them into groups of
1542 `mouse-buffer-menu-maxlen' and make a pane (or submenu) for each one."
1549 will split the buffer menu by the major modes (see
1550 `mouse-buffer-menu-mode-groups') or just by menu length.
1551 Set to 1 (or even 0!) if you want to group by major mode always, and to
1552 a large number if you prefer a mixed multitude. The default is 4."
1568 ("Threads\\|Memory\\|Disassembly\\|Breakpoints\\|Frames\\|Locals\\|Registers\\|Inferior I/O\\|Debugger"
1572 Each element has the form (REGEXP . GROUPNAME).
1576 "Pop up a menu of buffers for selection with the mouse.
1577 This switches buffers in the window that you clicked on,
1578 and selects that window."
1586 window))
1590 ;; Make an alist of elements that look like (MENU-ITEM . BUFFER).
1593 ;; Divide all buffers into buckets for various major modes.
1594 ;; Each bucket looks like (MODE NAMESTRING BUFFERS...).
1604 adjusted-major-mode
1609 ;; Compute the sum of squares of sizes of the major-mode buckets.
1614 (+ sum-of-squares
1619 ;; Subdividing by major modes really helps, so let's do it.
1621 ;; Sort the list to put the most popular major modes first.
1626 ;; Make a separate submenu for each major mode
1627 ;; that has more than one buffer,
1628 ;; unless all the remaining buffers are less than 1/10 of them.
1638 this-mode-list)
1639 subdivided-menus))))
1643 ;; If any major modes are left over,
1644 ;; make a single submenu for them.
1648 ;; we don't need split-by-major-mode any more,
1649 ;; so we can ditch it with nconc (mapcan).
1654 subdivided-menus)))))
1663 head)
1692 list-buffers-directory)))
1694 elt)
1695 head))))
1697 ;; Compensate for the reversal that the above loop does.
1701 ;; If we have lots of buffers, divide them into groups of 20
1702 ;; and make a pane (or submenu) for each one.
1707 ;; Pull off the next mouse-buffer-menu-maxlen buffers
1708 ;; and make them the next element of sublist.
1712 nil))
1714 sublists))
1718 ;; Few buffers--put them all in one pane.
1720 \f
1724 ;; Font selection.
1743 ;; For these, we specify the pixel height and width.
1772 ;; We don't seem to have these; who knows what they are.
1773 ;; ("fg-18" "fg-18")
1774 ;; ("fg-25" "fg-25")
1775 ("lucidasanstypewriter-12" "-b&h-lucidatypewriter-medium-r-normal-sans-*-120-*-*-*-*-iso8859-1")
1776 ("lucidasanstypewriter-bold-14" "-b&h-lucidatypewriter-bold-r-normal-sans-*-140-*-*-*-*-iso8859-1")
1779 ;; ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
1780 ;; ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
1781 )))
1787 ;; For these, we specify the point height.
1812 ))))
1818 "Prompt for a font name, using `x-popup-menu', and return it."
1825 last-nonmenu-event
1833 "Set the default font for the selected frame.
1834 The argument FONTS is a list of font names; the first valid font
1835 in this list is used.
1837 When called interactively, pop up a menu and allow the user to
1838 choose a font."
1844 last-nonmenu-event
1846 ;; Append list of fontsets currently defined.
1870 "Show a menu for changing the default face in the current buffer."
1876 nil ; regenerate new fonts
1877 ;; Initialize mouse-appearance-menu-map
1886 ;; Font selector
1889 w32-use-w32-font-dialog))
1892 ;; If the select-font is unavailable, construct a menu.
1896 w32-fixed-font-alist
1897 x-fixed-font-alist)
1904 font-symbol)
1907 '("--"))
1908 (setq font-symbol (intern (cadr font)))
1909 (define-key submenu-map (vector font-symbol)
1910 (list 'menu-item (car font) font-symbol)))))
1911 (define-key font-submenu (vector (intern submenu-name))
1912 (list 'menu-item submenu-name submenu-map))))
1913 (define-key mouse-appearance-menu-map [font-submenu]
1914 (list 'menu-item "Change Text Font" font-submenu)))))
1915 (let ((choice (x-popup-menu event mouse-appearance-menu-map)))
1916 (setq choice (nth (1- (length choice)) choice))
1917 (cond ((eq choice 'text-scale-increase)
1918 (text-scale-increase 1))
1919 ((eq choice 'text-scale-decrease)
1920 (text-scale-increase -1))
1921 ((eq choice 'face-remap-reset-base)
1922 (text-scale-mode 0)
1923 (buffer-face-mode 0))
1924 (choice
1925 ;; Either choice == 'x-select-font, or choice is a
1926 ;; symbol whose name is a font.
1927 (let ((font (if (eq choice 'x-select-font)
1928 (x-select-font)
1929 (symbol-name choice))))
1930 (buffer-face-mode-invoke
1931 (if (fontp font 'font-spec)
1932 (list :font font)
1933 (font-face-attributes font))
1934 t (called-interactively-p 'interactive)))))))))
1936 \f
1937 ;;; Bindings for mouse commands.
1939 (global-set-key [down-mouse-1] 'mouse-drag-region)
1940 (global-set-key [mouse-1] 'mouse-set-point)
1941 (global-set-key [drag-mouse-1] 'mouse-set-region)
1943 (defun mouse--strip-first-event (_prompt)
1944 (substring (this-single-command-raw-keys) 1))
1946 (define-key function-key-map [left-fringe mouse-1] 'mouse--strip-first-event)
1947 (define-key function-key-map [right-fringe mouse-1] 'mouse--strip-first-event)
1949 (global-set-key [mouse-2] 'mouse-yank-primary)
1950 ;; Allow yanking also when the corresponding cursor is "in the fringe".
1951 (define-key function-key-map [right-fringe mouse-2] 'mouse--strip-first-event)
1952 (define-key function-key-map [left-fringe mouse-2] 'mouse--strip-first-event)
1953 (global-set-key [mouse-3] 'mouse-save-then-kill)
1954 (define-key function-key-map [right-fringe mouse-3] 'mouse--strip-first-event)
1955 (define-key function-key-map [left-fringe mouse-3] 'mouse--strip-first-event)
1957 ;; By binding these to down-going events, we let the user use the up-going
1958 ;; event to make the selection, saving a click.
1959 (global-set-key [C-down-mouse-1] 'mouse-buffer-menu)
1960 (if (not (eq system-type 'ms-dos))
1961 (global-set-key [S-down-mouse-1] 'mouse-appearance-menu))
1962 ;; C-down-mouse-2 is bound in facemenu.el.
1963 (global-set-key [C-down-mouse-3]
1964 `(menu-item ,(purecopy "Menu Bar") ignore
1965 :filter (lambda (_)
1966 (if (zerop (or (frame-parameter nil 'menu-bar-lines) 0))
1967 (mouse-menu-bar-map)
1968 (mouse-menu-major-mode-map)))))
1970 ;; Binding mouse-1 to mouse-select-window when on mode-, header-, or
1971 ;; vertical-line prevents Emacs from signaling an error when the mouse
1972 ;; button is released after dragging these lines, on non-toolkit
1973 ;; versions.
1974 (global-set-key [header-line down-mouse-1] 'mouse-drag-header-line)
1975 (global-set-key [header-line mouse-1] 'mouse-select-window)
1976 ;; (global-set-key [mode-line drag-mouse-1] 'mouse-select-window)
1977 (global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line)
1978 (global-set-key [mode-line mouse-1] 'mouse-select-window)
1979 (global-set-key [mode-line mouse-2] 'mouse-delete-other-windows)
1980 (global-set-key [mode-line mouse-3] 'mouse-delete-window)
1981 (global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally)
1982 (global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically)
1983 (global-set-key [horizontal-scroll-bar C-mouse-2] 'mouse-split-window-horizontally)
1984 (global-set-key [vertical-line down-mouse-1] 'mouse-drag-vertical-line)
1985 (global-set-key [vertical-line mouse-1] 'mouse-select-window)
1986 (global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically)
1987 (global-set-key [right-divider down-mouse-1] 'mouse-drag-vertical-line)
1988 (global-set-key [right-divider mouse-1] 'ignore)
1989 (global-set-key [right-divider C-mouse-2] 'mouse-split-window-vertically)
1990 (global-set-key [bottom-divider down-mouse-1] 'mouse-drag-mode-line)
1991 (global-set-key [bottom-divider mouse-1] 'ignore)
1992 (global-set-key [bottom-divider C-mouse-2] 'mouse-split-window-horizontally)
1994 (provide 'mouse)
1996 ;;; mouse.el ends here