| blob | e2674184f6929099c2ec51a427c8a2db5f164f8a |
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'."
113 nil
118 ;; Turn the mouse-1 into a mouse-2 to follow links.
121 ;; If mouse-2 has never been done by the user, it doesn't have
122 ;; the necessary property to be interpreted correctly.
126 ;; Don't change the down event, only the up-event (bug#18212).
127 nil)
129 nil))))))
136 \f
137 ;; Provide a mode-specific menu on a mouse button.
140 "Show menu for minor mode specified by INDICATOR.
141 Interactively, INDICATOR is read using completion.
142 If there is no menu defined for the minor mode, then create one with
143 items `Turn Off' and `Help'."
146 "Minor mode indicator: "
157 ,indicator
165 "Show minor-mode menu for EVENT on minor modes area of the mode line."
176 ;; Make a keymap in which our last command leads to a menu or
177 ;; default to the edit menu.
181 menu-bar-edit-menu)))
184 newmap))
187 "Return menu keybar MENUBAR, or a lone submenu inside it.
188 If MENUBAR defines exactly one submenu, return just that submenu.
189 Otherwise, return MENUBAR."
196 menubar
200 "Return a keymap equivalent to the menu bar.
201 The contents are the items that would be in the menu bar whether or
202 not it is actually displayed."
207 ;; If a keymap doesn't have a prompt string (a lazy
208 ;; programmer didn't bother to provide one), create it and
209 ;; insert it into the keymap; each keymap gets its own
210 ;; prompt. This is required for non-toolkit versions to
211 ;; display non-empty menu pane names.
224 minor-mode)))
227 menu))
241 ;; Supplying the list is faster than making a new map.
242 ;; FIXME: We have a problem here: we have to use the global/local/minor
243 ;; so they're displayed in the expected order, but later on in the command
244 ;; loop, they're actually looked up in the opposite order.
246 global-menu
247 local-menu
248 minor-mode-menus)))
251 "Pop up a mode-specific menu of mouse commands.
252 Default to the Edit menu if the major mode doesn't define a menu."
259 "Pop up a menu equivalent to the menu bar for keyboard EVENT with PREFIX.
260 The contents are the items that would be in the menu bar whether or
261 not it is actually displayed."
268 "Popup a menu like either `mouse-major-mode-menu' or `mouse-popup-menubar'.
269 Use the former if the menu bar is showing, otherwise the latter."
277 event prefix))
278 \f
279 ;; Commands that operate on windows.
286 ;; Give temporary modes such as isearch a chance to turn off.
290 "Delete the window you click on.
291 Do nothing if the frame has just one window.
292 This command must be bound to a mouse click."
299 "Select the window clicked on; don't move point."
311 "Delete the window clicked on, 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."
358 ;; `mouse-drag-line' is now the common routine for handling all line
359 ;; dragging events combining the earlier `mouse-drag-mode-line-1' and
360 ;; `mouse-drag-vertical-line'. It should improve the behavior of line
361 ;; dragging wrt Emacs 23 as follows:
363 ;; (1) Gratuitous error messages and restrictions have been (hopefully)
364 ;; removed. (The help-echo that dragging the mode-line can resize a
365 ;; one-window-frame's window will still show through via bindings.el.)
367 ;; (2) No gratuitous selection of other windows should happen. (This
368 ;; has not been completely fixed for mouse-autoselected windows yet.)
370 ;; (3) Mouse clicks below a scroll-bar should pass through via unread
371 ;; command events.
373 ;; Note that `window-in-direction' replaces `mouse-drag-window-above'
374 ;; and `mouse-drag-vertical-line-rightward-window' with Emacs 24.1.
377 "Drag a mode line, header line, or vertical line with the mouse.
378 START-EVENT is the starting mouse-event of the drag action. LINE
379 must be one of the symbols `header', `mode', or `vertical'."
380 ;; Give temporary modes such as isearch a chance to turn off.
392 height finished event position growth dragged)
395 ;; Check whether header-line can be dragged at all.
398 ;; window-pixel-edges includes the header and mode lines, so
399 ;; we need to account for that when calculating window growth.
400 ;; On GUI frames, assume the mouse is approximately in the
401 ;; middle of the header/mode line, so we need only half the
402 ;; height in pixels.
410 ;; Check whether mode-line can be dragged at all.
412 ;; Allow resizing the minibuffer window if it's on the same
413 ;; frame as and immediately below the clicked window, and
414 ;; it's active or `resize-mini-windows' is nil.
428 ;; Get the window to adjust for the vertical case. If the scroll
429 ;; bar is on the window's right or we drag a vertical divider,
430 ;; adjust the window where the start-event occurred. If the
431 ;; scroll bar is on the start-event window's left or there are no
432 ;; scrollbars, adjust the window on the left of it.
437 ;; Start tracking.
439 ;; Loop reading events and sampling the position of the mouse.
443 ;; Do nothing if
444 ;; - there is a switch-frame event.
445 ;; - the mouse isn't in the frame that we started in
446 ;; - the mouse isn't in any Emacs frame
447 ;; Drag if
448 ;; - there is a mouse-movement event
449 ;; - there is a scroll-bar-movement event (Why? -- cyd)
450 ;; (same as mouse movement for our purposes)
451 ;; Quit if
452 ;; - there is a keyboard event or some other unknown event.
457 nil)
460 ;; Do not unread a drag-mouse-1 event to avoid selecting
461 ;; some other window. For vertical line dragging do not
462 ;; unread mouse-1 events either (but only if we dragged at
463 ;; least once to allow mouse-1 clicks get through).
472 nil)
474 ;; Drag vertical divider. This must be probably fixed like
475 ;; for the mode-line.
484 ;; Drag horizontal divider.
489 ;; The window's top includes the header line!
498 "Change the height of a window by dragging on the mode line."
503 "Change the height of a window by dragging on the header line."
508 "Change the width of a window by dragging on the vertical line."
511 \f
513 "Move point to the position clicked on with the mouse.
514 This should be bound to a mouse click event type."
517 ;; Use event-end in case called from mouse-drag-region.
518 ;; If EVENT is a click, event-end and event-start give same value.
526 "Return non-nil if there's an active region that was set with the mouse."
533 "Set the region to the text dragged over, and copy to kill ring.
534 This should be bound to a mouse drag event.
535 See the `mouse-drag-copy-region' variable to control whether this
536 command alters the kill ring or not."
543 ;; Don't set this-command to `kill-region', so a following
544 ;; C-w won't double the text in the kill ring. Ignore
545 ;; `last-command' so we don't append to a preceding kill.
549 ;; On a text terminal, bounce the cursor.
559 ;; Set transient-mark-mode for a little while.
564 transient-mark-mode))))
570 "The pause between scroll steps caused by mouse drags, in seconds.
571 If you drag the mouse beyond the edge of a window, Emacs scrolls the
572 window to bring the text beyond that edge into view, with a delay of
573 this many seconds between scroll steps. Scrolling stops when you move
574 the mouse back into the window, or release the button.
575 This variable's value may be non-integral.
576 Setting this to zero causes Emacs to scroll as fast as it can."
581 "The minimum number of lines scrolled by dragging mouse out of window.
582 Moving the mouse out the top or bottom edge of the window begins
583 scrolling repeatedly. The number of lines scrolled per repetition
584 is normally equal to the number of lines beyond the window edge that
585 the mouse has moved. However, it always scrolls at least the number
586 of lines specified by this variable."
591 "Scroll the window WINDOW, JUMP lines at a time, until new input arrives.
592 If OVERLAY is an overlay, let it stretch from START to the far edge of
593 the newly visible text.
594 Upon exit, point is at the far edge of the newly visible text."
610 ;; window-end doesn't reflect the window's new
611 ;; start position until the next redisplay.
617 ;; Now that we have scrolled WINDOW properly,
618 ;; put point back where it was for the redisplay
619 ;; so that we don't mess up the selected window.
631 "Set the region to the text that the mouse is dragged over.
632 Highlight the drag area as you move the mouse.
633 This must be bound to a button-down mouse event.
634 In Transient Mark mode, the highlighting remains as long as the mark
635 remains active. Otherwise, it remains until the next input event.
637 If the click is in the echo area, display the `*Messages*' buffer."
639 ;; Give temporary modes such as isearch a chance to turn off.
645 "Look for a property at click position.
646 POS may be either a buffer position or a click position like
647 those returned from `event-start'. If the click position is on
648 a string, the text property PROPERTY is examined.
649 If this is nil or the click is not on a string, then
650 the corresponding buffer position is searched for PROPERTY.
651 If PROPERTY is encountered in one of those places,
652 its value is returned."
658 ;; FIXME: mouse clicks on the mode-line come with a position in
659 ;; (nth 5). Maybe we should change the C code instead so that
660 ;; mouse-clicks don't include a position there!
666 "Return non-nil if POS is on a link in the current buffer.
667 POS must be a buffer position in the current buffer or a mouse
668 event location in the selected window (see `event-start').
669 However, if `mouse-1-click-in-non-selected-windows' is non-nil,
670 POS may be a mouse event location in any window.
672 A clickable link is identified by one of the following methods:
674 - If the character at POS has a non-nil `follow-link' text or
675 overlay property, the value of that property determines what to do.
677 - If there is a local key-binding or a keybinding at position POS
678 for the `follow-link' event, the binding of that event determines
679 what to do.
681 The resulting value determine whether POS is inside a link:
683 - If the value is `mouse-face', POS is inside a link if there
684 is a non-nil `mouse-face' property at POS. Return t in this case.
686 - If the value is a function, FUNC, POS is inside a link if
687 the call \(FUNC POS) returns non-nil. Return the return value
688 from that call. Arg is \(posn-point POS) if POS is a mouse event.
690 - Otherwise, return the value itself.
692 The return value is interpreted as follows:
694 - If it is a string, the mouse-1 event is translated into the
695 first character of the string, i.e. the action of the mouse-1
696 click is the local or global binding of that character.
698 - If it is a vector, the mouse-1 event is translated into the
699 first element of that vector, i.e. the action of the mouse-1
700 click is the local or global binding of that event.
702 - Otherwise, the mouse-1 event is translated into a mouse-2 event
703 at the same position."
706 mouse-1-click-in-non-selected-windows
717 ;; FIXME: This seems questionable if the click is not in a buffer.
718 ;; Should we instead decide that `action' takes a `posn'?
726 "Fix help message MSG for `mouse-1-click-follows-link'."
746 msg)
749 do-mouse-drag-region-post-process)
750 "Track mouse drags by highlighting area between point and cursor.
751 The region will be defined with mark and point.
752 DO-MOUSE-DRAG-REGION-POST-PROCESS should only be used by
753 `mouse-drag-region'."
758 ;; We've recorded what we needed from the current buffer and
759 ;; window, now let's jump to the place of the event, where things
760 ;; are happening.
773 ;; Don't count the mode line.
776 ;; Suppress automatic hscrolling, because that is a nuisance
777 ;; when setting point near the right fringe (but see below).
780 moved-off-start event end end-point)
783 ;; In case the down click is in the middle of some intangible text,
784 ;; use the end of that text, and put it in START-POINT.
789 ;; Activate the region, using `mouse-start-end' to determine where
790 ;; to put point and mark (e.g., double-click will select a word).
799 ;; Track the mouse until we get a non-movement event.
806 ;; Automatic hscrolling did not occur during the call to
807 ;; `read-event'; but if the user subsequently drags the
808 ;; mouse, go ahead and hscroll.
813 ;; Note whether the mouse has left the starting position.
819 end-point click-count)
825 nil start-point))
828 nil start-point))))))))
830 ;; Handle the terminating event if possible.
832 ;; Ensure that point is on the end of the last event.
838 end-point click-count))
840 ;; Find its binding.
842 ;; FIXME This doesn't make sense, because
843 ;; event-click-count always returns something >= 1.
847 mouse-set-region))))))
851 ;; If point has moved, finish the drag.
854 do-mouse-drag-region-post-process
858 ;; Otherwise, run binding of terminating up-event.
867 ;; Don't run the up-event handler if the window
868 ;; start changed in a redisplay after the
869 ;; mouse-set-point for the down-mouse event at
870 ;; the beginning of this function. When the
871 ;; window start has changed, the up-mouse event
872 ;; contains a different position due to the new
873 ;; window contents, and point is set again.
876 start-window-start)))
894 ;; Commands to handle xterm-style multiple clicks.
896 "Skip over word, over whitespace, or over identical punctuation.
897 If DIR is positive skip forward; if negative, skip backward."
901 ;; Here, we can't use skip-syntax-forward/backward because
902 ;; they don't pay attention to word-separating-categories,
903 ;; and thus they will skip over a true word boundary. So,
904 ;; we simulate the original behavior by using forward-word.
926 "Return a list of region bounds based on START and END according to MODE.
927 If MODE is 0 then set point to (min START END), mark to (max START END).
928 If MODE is 1 then set point to start of word at (min START END),
929 mark to end of word at (max START END).
930 If MODE is 2 then do the same for lines."
934 end temp)))
998 \f
999 ;; Subroutine: set the mark where CLICK happened,
1000 ;; but don't do anything else.
1017 ;; Use reverse, not nreverse, since event-modifiers
1018 ;; does not copy the list it returns.
1021 event)))
1025 t
1027 nil)))
1029 ;; Momentarily show where the mark is, if highlighting doesn't show it.
1032 "Set mark at the position clicked on with the mouse.
1033 Display cursor at that position for a second.
1034 This must be bound to a mouse click."
1038 ;; We don't use save-excursion because that preserves the mark too.
1048 "Kill the region between point and the mouse click.
1060 "Insert the last stretch of killed text at the position clicked on.
1061 Also move point to one end of the text thus inserted (normally the end),
1062 and set mark at the beginning.
1064 If `mouse-yank-at-point' is non-nil, insert at point
1065 regardless of where you click."
1067 ;; 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.
1079 "Insert the primary selection at the position clicked on.
1080 Move point to the end of the inserted text, and set mark at
1081 beginning. If `mouse-yank-at-point' is non-nil, insert at point
1082 regardless of where you click."
1084 ;; Give temporary modes such as isearch a chance to turn off.
1086 ;; Without this, confusing things happen upon e.g. inserting into
1087 ;; the middle of an active region.
1095 ;; MS-Windows emulates PRIMARY in x-get-selection, but not
1096 ;; in x-get-selection-value (the latter only accesses the
1097 ;; clipboard). So try PRIMARY first, in case they selected
1098 ;; something with the mouse in the current Emacs session.
1101 ;; Else MS-DOS or X.
1102 ;; On X, x-get-selection-value supports more formats and
1103 ;; encodings, so use it in preference to x-get-selection.
1106 ;; FIXME: What about xterm-mouse-mode etc.?
1114 "Copy the region between point and the mouse click in the kill ring.
1121 ;; This function used to delete the text between point and the mouse
1122 ;; whenever it was equal to the front of the kill ring, but some
1123 ;; people found that confusing.
1125 ;; The position of the last invocation of `mouse-save-then-kill'.
1129 ;; We must make our own undo boundaries
1130 ;; because they happen automatically only for the current buffer.
1133 ;; If we have no undo list in this buffer,
1134 ;; just delete.
1136 ;; Delete, but make the undo-list entry share with the kill ring.
1137 ;; First, delete just one char, so in case buffer is being modified
1138 ;; for the first time, the undo list records that fact.
1143 ;; Undo that deletion--but don't change the undo list!
1146 ;; Now delete the rest of the specified region,
1147 ;; but don't record it.
1153 ;; Search back in buffer-undo-list for the string
1154 ;; that came from deleting one character.
1157 ;; Replace it with an entry for the entire deleted text.
1163 "Set the region according to CLICK; the second time, kill it.
1164 CLICK should be a mouse click event.
1166 If the region is inactive, activate it temporarily. Set mark at
1167 the original point, and move point to the position of CLICK.
1169 If the region is already active, adjust it. Normally, do this by
1170 moving point or mark, whichever is closer, to CLICK. But if you
1171 have selected whole words or lines, move point or mark to the
1172 word or line boundary closest to CLICK instead.
1174 If `mouse-drag-copy-region' is non-nil, this command also saves the
1175 new region to the kill ring (replacing the previous kill if the
1176 previous region was just saved to the kill ring).
1178 If this command is called a second consecutive time with the same
1179 CLICK position, kill the region (or delete it
1180 if `mouse-drag-copy-region' is non-nil)"
1187 ;; Don't let a subsequent kill command append to this one.
1189 ;; Check if the user has multi-clicked to select words/lines.
1193 mouse-selection-click-count
1197 ;; If the user clicked without moving point, kill the region.
1198 ;; This also resets `mouse-selection-click-count'.
1203 ;; Region already saved in the previous click;
1204 ;; don't make a duplicate entry, just delete.
1210 ;; Otherwise, if there is a suitable region, adjust it by moving
1211 ;; one end (whichever is closer) to CLICK-PT.
1216 mouse-save-then-kill-posn)
1218 mouse-set-region))
1230 ;; Region already copied to kill-ring once, so replace.
1232 ;; Arrange for a repeated mouse-3 to kill the region.
1235 ;; Otherwise, set the mark where point is and move to CLICK-PT.
1247 \f
1258 ol)
1259 "An overlay which records the current secondary selection.
1264 ;; A marker which records the specified first end for a secondary selection.
1265 ;; May be nil.
1269 "Set one end of the secondary selection to the position clicked on.
1271 and complete the secondary selection."
1276 ;; Cancel any preexisting secondary selection.
1285 "Set the secondary selection to the text that the mouse is dragged over.
1286 This must be bound to a mouse drag event."
1290 beg
1297 'SECONDARY
1302 "Set the secondary selection to the text that the mouse is dragged over.
1303 Highlight the drag area as you move the mouse.
1304 This must be bound to a button-down mouse event.
1305 The function returns a non-nil value if it creates a secondary selection."
1316 ;; Don't count the mode line.
1322 ;; Double or triple press: make an initial selection
1323 ;; of one word or line.
1328 ;; Single-press: cancel any preexisting secondary selection.
1341 nil
1345 ;; Are we moving within the original window?
1349 click-count)))
1362 mouse-secondary-overlay start-point))
1365 mouse-secondary-overlay start-point)))))))))
1376 nil))
1378 'SECONDARY
1383 "Insert the secondary selection at the position clicked on.
1384 Move point to the end of the inserted text.
1385 If `mouse-yank-at-point' is non-nil, insert at point
1386 regardless of where you click."
1388 ;; Give temporary modes such as isearch a chance to turn off.
1397 "Kill the text in the secondary selection.
1398 This is intended more as a keyboard command than as a mouse command
1399 but it can work as either one.
1401 The current buffer (in case of keyboard use), or the buffer clicked on,
1402 must be the one that the secondary selection is in. This requirement
1403 is to prevent accidents."
1419 "Set the secondary selection and save it to the kill ring.
1420 The second time, kill it. CLICK should be a mouse click event.
1422 If you have not called `mouse-start-secondary' in the clicked
1423 buffer, activate the secondary selection and set it between point
1424 and the click position CLICK.
1426 Otherwise, adjust the bounds of the secondary selection.
1427 Normally, do this by moving its beginning or end, whichever is
1428 closer, to CLICK. But if you have selected whole words or lines,
1429 adjust to the word or line boundary closest to CLICK instead.
1431 If this command is called a second consecutive time with the same
1432 CLICK position, kill the secondary selection."
1439 ;; Don't let a subsequent kill command append to this one.
1441 ;; Check if the user has multi-clicked to select words/lines.
1444 mouse-secondary-click-count
1452 ;; If the secondary selection is not active in BUF, activate it.
1462 ;; If the user clicked without moving point, delete the secondary
1463 ;; selection. This also resets `mouse-secondary-click-count'.
1472 ;; Otherwise, if there is a suitable secondary selection overlay,
1473 ;; adjust it by moving one end (whichever is closer) to CLICK-PT.
1482 ;; If the front of the kill ring comes from an immediately
1483 ;; previous use of this command, replace the entry.
1487 t)
1493 ;; Otherwise, set the secondary selection overlay.
1497 ;; All we have is one end of a selection, so put the other
1498 ;; end here.
1504 ;; Finally, set the window system's secondary selection.
1512 \f
1514 "Number of buffers in one pane (submenu) of the buffer menu.
1515 If we have lots of buffers, divide them into groups of
1516 `mouse-buffer-menu-maxlen' and make a pane (or submenu) for each one."
1523 will split the buffer menu by the major modes (see
1524 `mouse-buffer-menu-mode-groups') or just by menu length.
1525 Set to 1 (or even 0!) if you want to group by major mode always, and to
1526 a large number if you prefer a mixed multitude. The default is 4."
1542 ("Threads\\|Memory\\|Disassembly\\|Breakpoints\\|Frames\\|Locals\\|Registers\\|Inferior I/O\\|Debugger"
1546 Each element has the form (REGEXP . GROUPNAME).
1550 "Pop up a menu of buffers for selection with the mouse.
1551 This switches buffers in the window that you clicked on,
1552 and selects that window."
1556 ;; Make an alist of elements that look like (MENU-ITEM . BUFFER).
1558 ;; Divide all buffers into buckets for various major modes.
1559 ;; Each bucket looks like (MODE NAMESTRING BUFFERS...).
1569 adjusted-major-mode
1574 ;; Compute the sum of squares of sizes of the major-mode buckets.
1579 (+ sum-of-squares
1584 ;; Subdividing by major modes really helps, so let's do it.
1586 ;; Sort the list to put the most popular major modes first.
1591 ;; Make a separate submenu for each major mode
1592 ;; that has more than one buffer,
1593 ;; unless all the remaining buffers are less than 1/10 of them.
1603 this-mode-list)
1604 subdivided-menus))))
1608 ;; If any major modes are left over,
1609 ;; make a single submenu for them.
1613 ;; we don't need split-by-major-mode any more,
1614 ;; so we can ditch it with nconc.
1619 subdivided-menus)))))
1630 window))
1636 head)
1665 list-buffers-directory)))
1667 elt)
1668 head))))
1670 ;; Compensate for the reversal that the above loop does.
1674 ;; If we have lots of buffers, divide them into groups of 20
1675 ;; and make a pane (or submenu) for each one.
1680 ;; Pull off the next mouse-buffer-menu-maxlen buffers
1681 ;; and make them the next element of sublist.
1685 nil))
1687 sublists))
1691 ;; Few buffers--put them all in one pane.
1693 \f
1697 ;; Font selection.
1716 ;; For these, we specify the pixel height and width.
1745 ;; We don't seem to have these; who knows what they are.
1746 ;; ("fg-18" "fg-18")
1747 ;; ("fg-25" "fg-25")
1748 ("lucidasanstypewriter-12" "-b&h-lucidatypewriter-medium-r-normal-sans-*-120-*-*-*-*-iso8859-1")
1749 ("lucidasanstypewriter-bold-14" "-b&h-lucidatypewriter-bold-r-normal-sans-*-140-*-*-*-*-iso8859-1")
1752 ;; ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
1753 ;; ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
1754 )))
1760 ;; For these, we specify the point height.
1785 ))))
1791 "Prompt for a font name, using `x-popup-menu', and return it."
1798 last-nonmenu-event
1806 "Set the default font for the selected frame.
1807 The argument FONTS is a list of font names; the first valid font
1808 in this list is used.
1810 When called interactively, pop up a menu and allow the user to
1811 choose a font."
1817 last-nonmenu-event
1819 ;; Append list of fontsets currently defined.
1841 "Show a menu for changing the default face in the current buffer."
1847 nil ; regenerate new fonts
1848 ;; Initialize mouse-appearance-menu-map
1857 ;; Font selector
1861 ;; If the select-font is unavailable, construct a menu.
1870 font-symbol)
1873 '("--"))
1874 (setq font-symbol (intern (cadr font)))
1875 (define-key submenu-map (vector font-symbol)
1876 (list 'menu-item (car font) font-symbol)))))
1877 (define-key font-submenu (vector (intern submenu-name))
1878 (list 'menu-item submenu-name submenu-map))))
1879 (define-key mouse-appearance-menu-map [font-submenu]
1880 (list 'menu-item "Change Text Font" font-submenu)))))
1881 (let ((choice (x-popup-menu event mouse-appearance-menu-map)))
1882 (setq choice (nth (1- (length choice)) choice))
1883 (cond ((eq choice 'text-scale-increase)
1884 (text-scale-increase 1))
1885 ((eq choice 'text-scale-decrease)
1886 (text-scale-increase -1))
1887 ((eq choice 'face-remap-reset-base)
1888 (text-scale-mode 0)
1889 (buffer-face-mode 0))
1890 (choice
1891 ;; Either choice == 'x-select-font, or choice is a
1892 ;; symbol whose name is a font.
1893 (let ((font (if (eq choice 'x-select-font)
1894 (x-select-font)
1895 (symbol-name choice))))
1896 (buffer-face-mode-invoke
1897 (if (fontp font 'font-spec)
1898 (list :font font)
1899 (font-face-attributes font))
1900 t (called-interactively-p 'interactive)))))))))
1902 \f
1903 ;;; Bindings for mouse commands.
1905 (define-key global-map [down-mouse-1] 'mouse-drag-region)
1906 (global-set-key [mouse-1] 'mouse-set-point)
1907 (global-set-key [drag-mouse-1] 'mouse-set-region)
1909 ;; These are tested for in mouse-drag-region.
1910 (global-set-key [double-mouse-1] 'mouse-set-point)
1911 (global-set-key [triple-mouse-1] 'mouse-set-point)
1913 (defun mouse--strip-first-event (_prompt)
1914 (substring (this-single-command-raw-keys) 1))
1916 (define-key function-key-map [left-fringe mouse-1] 'mouse--strip-first-event)
1917 (define-key function-key-map [right-fringe mouse-1] 'mouse--strip-first-event)
1919 (global-set-key [mouse-2] 'mouse-yank-primary)
1920 ;; Allow yanking also when the corresponding cursor is "in the fringe".
1921 (define-key function-key-map [right-fringe mouse-2] 'mouse--strip-first-event)
1922 (define-key function-key-map [left-fringe mouse-2] 'mouse--strip-first-event)
1923 (global-set-key [mouse-3] 'mouse-save-then-kill)
1924 (define-key function-key-map [right-fringe mouse-3] 'mouse--strip-first-event)
1925 (define-key function-key-map [left-fringe mouse-3] 'mouse--strip-first-event)
1927 ;; By binding these to down-going events, we let the user use the up-going
1928 ;; event to make the selection, saving a click.
1929 (global-set-key [C-down-mouse-1] 'mouse-buffer-menu)
1930 (if (not (eq system-type 'ms-dos))
1931 (global-set-key [S-down-mouse-1] 'mouse-appearance-menu))
1932 ;; C-down-mouse-2 is bound in facemenu.el.
1933 (global-set-key [C-down-mouse-3]
1934 `(menu-item ,(purecopy "Menu Bar") ignore
1935 :filter (lambda (_)
1936 (if (zerop (or (frame-parameter nil 'menu-bar-lines) 0))
1937 (mouse-menu-bar-map)
1938 (mouse-menu-major-mode-map)))))
1940 ;; Binding mouse-1 to mouse-select-window when on mode-, header-, or
1941 ;; vertical-line prevents Emacs from signaling an error when the mouse
1942 ;; button is released after dragging these lines, on non-toolkit
1943 ;; versions.
1944 (global-set-key [mode-line mouse-1] 'mouse-select-window)
1945 (global-set-key [mode-line drag-mouse-1] 'mouse-select-window)
1946 (global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line)
1947 (global-set-key [header-line down-mouse-1] 'mouse-drag-header-line)
1948 (global-set-key [header-line mouse-1] 'mouse-select-window)
1949 (global-set-key [mode-line mouse-2] 'mouse-delete-other-windows)
1950 (global-set-key [mode-line mouse-3] 'mouse-delete-window)
1951 (global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally)
1952 (global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically)
1953 (global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically)
1954 (global-set-key [vertical-line down-mouse-1] 'mouse-drag-vertical-line)
1955 (global-set-key [right-divider down-mouse-1] 'mouse-drag-vertical-line)
1956 (global-set-key [bottom-divider down-mouse-1] 'mouse-drag-mode-line)
1957 (global-set-key [vertical-line mouse-1] 'mouse-select-window)
1959 (provide 'mouse)
1961 ;;; mouse.el ends here