| blob | 9231767576acc7c394312b4dea79abe2abf8c128 |
1 ;;; mouse.el --- window system-independent mouse support -*- lexical-binding: t -*-
3 ;; Copyright (C) 1993-1995, 1999-2014 Free Software Foundation, Inc.
5 ;; Maintainer: FSF
6 ;; Keywords: hardware, mouse
7 ;; Package: emacs
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software: you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation, either version 3 of the License, or
14 ;; (at your option) any later version.
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
24 ;;; Commentary:
26 ;; This package provides various useful commands (including help
27 ;; system access) through the mouse. All this code assumes that mouse
28 ;; interpretation has been abstracted into Emacs input events.
29 ;;
30 ;; The code is rather X-dependent.
32 ;;; Code:
34 ;;; Utility functions.
36 ;; Indent track-mouse like progn.
40 "If non-nil, mouse yank commands yank at point instead of at click."
45 "If non-nil, copy to kill-ring upon mouse adjustments of the region.
48 addition to mouse drags."
54 "Non-nil means that clicking Mouse-1 on a link follows the link.
56 With the default setting, an ordinary Mouse-1 click on a link
57 performs the same action as Mouse-2 on that link, while a longer
58 Mouse-1 click \(hold down the Mouse-1 button for more than 450
59 milliseconds) performs the original Mouse-1 binding \(which
60 typically sets point where you click the mouse).
62 If value is an integer, the time elapsed between pressing and
63 releasing the mouse button determines whether to follow the link
64 or perform the normal Mouse-1 action (typically set point).
65 The absolute numeric value specifies the maximum duration of a
67 short click follows the link, and a longer click performs the
68 normal action. A negative value gives the opposite behavior.
70 If value is `double', a double click follows the link.
72 Otherwise, a single Mouse-1 click unconditionally follows the link.
74 Note that dragging the mouse never follows the link.
76 This feature only works in modes that specifically identify
77 clickable text as links, so it may not work with some external
78 packages. See `mouse-on-link-p' for details."
87 "If non-nil, a Mouse-1 click also follows links in non-selected windows.
89 If nil, a Mouse-1 click on a link in a non-selected window performs
90 the normal mouse-1 binding, typically selects the window and sets
91 point at the click position."
97 "Turn `mouse-1' events into `mouse-2' events if follows-link.
98 Expects to be bound to `down-mouse-1' in `key-translation-map'."
107 nil
116 nil
121 ;; Turn the mouse-1 into a mouse-2 to follow links.
126 ;; If mouse-2 has never been done by the user, it doesn't have
127 ;; the necessary property to be interpreted correctly.
131 ;; Modify the event in place, so read-key-sequence doesn't
132 ;; generate a second fake prefix key (see fake_prefixed_keys in
133 ;; src/keyboard.c).
137 nil))))))
144 \f
145 ;; Provide a mode-specific menu on a mouse button.
148 "Show menu for minor mode specified by INDICATOR.
149 Interactively, INDICATOR is read using completion.
150 If there is no menu defined for the minor mode, then create one with
151 items `Turn Off' and `Help'."
154 "Minor mode indicator: "
165 ,indicator
173 "Show minor-mode menu for EVENT on minor modes area of the mode line."
184 ;; Make a keymap in which our last command leads to a menu or
185 ;; default to the edit menu.
189 menu-bar-edit-menu)))
192 newmap))
195 "Return menu keybar MENUBAR, or a lone submenu inside it.
196 If MENUBAR defines exactly one submenu, return just that submenu.
197 Otherwise, return MENUBAR."
204 menubar
208 "Return a keymap equivalent to the menu bar.
209 The contents are the items that would be in the menu bar whether or
210 not it is actually displayed."
215 ;; If a keymap doesn't have a prompt string (a lazy
216 ;; programmer didn't bother to provide one), create it and
217 ;; insert it into the keymap; each keymap gets its own
218 ;; prompt. This is required for non-toolkit versions to
219 ;; display non-empty menu pane names.
232 minor-mode)))
235 menu))
249 ;; Supplying the list is faster than making a new map.
250 ;; FIXME: We have a problem here: we have to use the global/local/minor
251 ;; so they're displayed in the expected order, but later on in the command
252 ;; loop, they're actually looked up in the opposite order.
254 global-menu
255 local-menu
256 minor-mode-menus)))
259 "Pop up a mode-specific menu of mouse commands.
260 Default to the Edit menu if the major mode doesn't define a menu."
267 "Pop up a menu equivalent to the menu bar for keyboard EVENT with PREFIX.
268 The contents are the items that would be in the menu bar whether or
269 not it is actually displayed."
276 "Popup a menu like either `mouse-major-mode-menu' or `mouse-popup-menubar'.
277 Use the former if the menu bar is showing, otherwise the latter."
285 event prefix))
286 \f
287 ;; Commands that operate on windows.
294 ;; Give temporary modes such as isearch a chance to turn off.
298 "Delete the window you click on.
299 Do nothing if the frame has just one window.
300 This command must be bound to a mouse click."
307 "Select the window clicked on; don't move point."
319 "Delete the window clicked on, and create a new frame displaying its buffer."
330 "Delete all windows except the one you click on."
335 "Select Emacs window mouse is on, then split it vertically in half.
336 The window is split at the line clicked on.
337 This command must be bound to a mouse click."
351 "Select Emacs window mouse is on, then split it horizontally in half.
352 The window is split at the column clicked on.
353 This command must be bound to a mouse click."
366 ;; `mouse-drag-line' is now the common routine for handling all line
367 ;; dragging events combining the earlier `mouse-drag-mode-line-1' and
368 ;; `mouse-drag-vertical-line'. It should improve the behavior of line
369 ;; dragging wrt Emacs 23 as follows:
371 ;; (1) Gratuitous error messages and restrictions have been (hopefully)
372 ;; removed. (The help-echo that dragging the mode-line can resize a
373 ;; one-window-frame's window will still show through via bindings.el.)
375 ;; (2) No gratuitous selection of other windows should happen. (This
376 ;; has not been completely fixed for mouse-autoselected windows yet.)
378 ;; (3) Mouse clicks below a scroll-bar should pass through via unread
379 ;; command events.
381 ;; Note that `window-in-direction' replaces `mouse-drag-window-above'
382 ;; and `mouse-drag-vertical-line-rightward-window' with Emacs 24.1.
385 "Drag a mode line, header line, or vertical line with the mouse.
386 START-EVENT is the starting mouse-event of the drag action. LINE
387 must be one of the symbols `header', `mode', or `vertical'."
388 ;; Give temporary modes such as isearch a chance to turn off.
402 height finished event position growth dragged)
405 ;; Check whether header-line can be dragged at all.
411 ;; Check whether mode-line can be dragged at all.
413 ;; Allow resizing the minibuffer window if it's on the same
414 ;; frame as and immediately below the clicked window, and
415 ;; it's active or `resize-mini-windows' is nil.
425 ;; Get the window to adjust for the vertical case. If the scroll
426 ;; bar is on the window's right or we drag a vertical divider,
427 ;; adjust the window where the start-event occurred. If the
428 ;; scroll bar is on the start-event window's left or there are no
429 ;; scrollbars, adjust the window on the left of it.
434 ;; Start tracking.
436 ;; Loop reading events and sampling the position of the mouse.
440 ;; Do nothing if
441 ;; - there is a switch-frame event.
442 ;; - the mouse isn't in the frame that we started in
443 ;; - the mouse isn't in any Emacs frame
444 ;; Drag if
445 ;; - there is a mouse-movement event
446 ;; - there is a scroll-bar-movement event (Why? -- cyd)
447 ;; (same as mouse movement for our purposes)
448 ;; Quit if
449 ;; - there is a keyboard event or some other unknown event.
454 nil)
457 ;; Do not unread a drag-mouse-1 event to avoid selecting
458 ;; some other window. For vertical line dragging do not
459 ;; unread mouse-1 events either (but only if we dragged at
460 ;; least once to allow mouse-1 clicks get through).
469 nil)
471 ;; Drag vertical divider. This must be probably fixed like
472 ;; for the mode-line.
481 ;; Drag horizontal divider.
486 ;; The window's top includes the header line!
493 ;; Process the terminating event.
496 ;; If mouse-2 has never been done by the user, it doesn't have
497 ;; the necessary property to be interpreted correctly.
503 "Change the height of a window by dragging on the mode line."
508 "Change the height of a window by dragging on the header line."
513 "Change the width of a window by dragging on the vertical line."
516 \f
518 "Move point to the position clicked on with the mouse.
519 This should be bound to a mouse click event type."
522 ;; Use event-end in case called from mouse-drag-region.
523 ;; If EVENT is a click, event-end and event-start give same value.
531 "Return non-nil if there's an active region that was set with the mouse."
538 "Set the region to the text dragged over, and copy to kill ring.
539 This should be bound to a mouse drag event.
540 See the `mouse-drag-copy-region' variable to control whether this
541 command alters the kill ring or not."
548 ;; Don't set this-command to `kill-region', so a following
549 ;; C-w won't double the text in the kill ring. Ignore
550 ;; `last-command' so we don't append to a preceding kill.
554 ;; On a text terminal, bounce the cursor.
564 ;; Set transient-mark-mode for a little while.
569 transient-mark-mode))))
575 "The pause between scroll steps caused by mouse drags, in seconds.
576 If you drag the mouse beyond the edge of a window, Emacs scrolls the
577 window to bring the text beyond that edge into view, with a delay of
578 this many seconds between scroll steps. Scrolling stops when you move
579 the mouse back into the window, or release the button.
580 This variable's value may be non-integral.
581 Setting this to zero causes Emacs to scroll as fast as it can."
586 "The minimum number of lines scrolled by dragging mouse out of window.
587 Moving the mouse out the top or bottom edge of the window begins
588 scrolling repeatedly. The number of lines scrolled per repetition
589 is normally equal to the number of lines beyond the window edge that
590 the mouse has moved. However, it always scrolls at least the number
591 of lines specified by this variable."
596 "Scroll the window WINDOW, JUMP lines at a time, until new input arrives.
597 If OVERLAY is an overlay, let it stretch from START to the far edge of
598 the newly visible text.
599 Upon exit, point is at the far edge of the newly visible text."
615 ;; window-end doesn't reflect the window's new
616 ;; start position until the next redisplay.
622 ;; Now that we have scrolled WINDOW properly,
623 ;; put point back where it was for the redisplay
624 ;; so that we don't mess up the selected window.
636 "Set the region to the text that the mouse is dragged over.
637 Highlight the drag area as you move the mouse.
638 This must be bound to a button-down mouse event.
639 In Transient Mark mode, the highlighting remains as long as the mark
640 remains active. Otherwise, it remains until the next input event.
642 If the click is in the echo area, display the `*Messages*' buffer."
644 ;; Give temporary modes such as isearch a chance to turn off.
650 "Look for a property at click position.
651 POS may be either a buffer position or a click position like
652 those returned from `event-start'. If the click position is on
653 a string, the text property PROPERTY is examined.
654 If this is nil or the click is not on a string, then
655 the corresponding buffer position is searched for PROPERTY.
656 If PROPERTY is encountered in one of those places,
657 its value is returned."
668 "Return non-nil if POS is on a link in the current buffer.
669 POS must be a buffer position in the current buffer or a mouse
670 event location in the selected window (see `event-start').
671 However, if `mouse-1-click-in-non-selected-windows' is non-nil,
672 POS may be a mouse event location in any window.
674 A clickable link is identified by one of the following methods:
676 - If the character at POS has a non-nil `follow-link' text or
677 overlay property, the value of that property determines what to do.
679 - If there is a local key-binding or a keybinding at position POS
680 for the `follow-link' event, the binding of that event determines
681 what to do.
683 The resulting value determine whether POS is inside a link:
685 - If the value is `mouse-face', POS is inside a link if there
686 is a non-nil `mouse-face' property at POS. Return t in this case.
688 - If the value is a function, FUNC, POS is inside a link if
689 the call \(FUNC POS) returns non-nil. Return the return value
690 from that call. Arg is \(posn-point POS) if POS is a mouse event.
692 - Otherwise, return the value itself.
694 The return value is interpreted as follows:
696 - If it is a string, the mouse-1 event is translated into the
697 first character of the string, i.e. the action of the mouse-1
698 click is the local or global binding of that character.
700 - If it is a vector, the mouse-1 event is translated into the
701 first element of that vector, i.e. the action of the mouse-1
702 click is the local or global binding of that event.
704 - Otherwise, the mouse-1 event is translated into a mouse-2 event
705 at the same position."
708 mouse-1-click-in-non-selected-windows
719 ;; FIXME: This seems questionable if the click is not in a buffer.
720 ;; Should we instead decide that `action' takes a `posn'?
728 "Fix help message MSG for `mouse-1-click-follows-link'."
748 msg)
751 do-mouse-drag-region-post-process)
752 "Track mouse drags by highlighting area between point and cursor.
753 The region will be defined with mark and point.
754 DO-MOUSE-DRAG-REGION-POST-PROCESS should only be used by
755 `mouse-drag-region'."
760 ;; We've recorded what we needed from the current buffer and
761 ;; window, now let's jump to the place of the event, where things
762 ;; are happening.
775 ;; Don't count the mode line.
778 ;; Suppress automatic hscrolling, because that is a nuisance
779 ;; when setting point near the right fringe (but see below).
782 moved-off-start event end end-point)
785 ;; In case the down click is in the middle of some intangible text,
786 ;; use the end of that text, and put it in START-POINT.
791 ;; Activate the region, using `mouse-start-end' to determine where
792 ;; to put point and mark (e.g., double-click will select a word).
801 ;; Track the mouse until we get a non-movement event.
808 ;; Automatic hscrolling did not occur during the call to
809 ;; `read-event'; but if the user subsequently drags the
810 ;; mouse, go ahead and hscroll.
815 ;; Note whether the mouse has left the starting position.
821 end-point click-count)
827 nil start-point))
830 nil start-point))))))))
832 ;; Handle the terminating event if possible.
834 ;; Ensure that point is on the end of the last event.
840 end-point click-count))
842 ;; Find its binding.
844 ;; FIXME This doesn't make sense, because
845 ;; event-click-count always returns something >= 1.
849 mouse-set-region))))))
853 ;; If point has moved, finish the drag.
856 do-mouse-drag-region-post-process
860 ;; Otherwise, run binding of terminating up-event.
869 ;; Don't run the up-event handler if the window
870 ;; start changed in a redisplay after the
871 ;; mouse-set-point for the down-mouse event at
872 ;; the beginning of this function. When the
873 ;; window start has changed, the up-mouse event
874 ;; contains a different position due to the new
875 ;; window contents, and point is set again.
878 start-window-start)))
896 ;; Commands to handle xterm-style multiple clicks.
898 "Skip over word, over whitespace, or over identical punctuation.
899 If DIR is positive skip forward; if negative, skip backward."
903 ;; Here, we can't use skip-syntax-forward/backward because
904 ;; they don't pay attention to word-separating-categories,
905 ;; and thus they will skip over a true word boundary. So,
906 ;; we simulate the original behavior by using forward-word.
928 "Return a list of region bounds based on START and END according to MODE.
929 If MODE is 0 then set point to (min START END), mark to (max START END).
930 If MODE is 1 then set point to start of word at (min START END),
931 mark to end of word at (max START END).
932 If MODE is 2 then do the same for lines."
936 end temp)))
1000 \f
1001 ;; Subroutine: set the mark where CLICK happened,
1002 ;; but don't do anything else.
1019 ;; Use reverse, not nreverse, since event-modifiers
1020 ;; does not copy the list it returns.
1023 event)))
1027 t
1029 nil)))
1031 ;; Momentarily show where the mark is, if highlighting doesn't show it.
1034 "Set mark at the position clicked on with the mouse.
1035 Display cursor at that position for a second.
1036 This must be bound to a mouse click."
1040 ;; We don't use save-excursion because that preserves the mark too.
1050 "Kill the region between point and the mouse click.
1062 "Insert the last stretch of killed text at the position clicked on.
1063 Also move point to one end of the text thus inserted (normally the end),
1064 and set mark at the beginning.
1066 If `mouse-yank-at-point' is non-nil, insert at point
1067 regardless of where you click."
1069 ;; Give temporary modes such as isearch a chance to turn off.
1072 ;; Without this, confusing things happen upon e.g. inserting into
1073 ;; the middle of an active region.
1081 "Insert the primary selection at the position clicked on.
1082 Move point to the end of the inserted text, and set mark at
1083 beginning. If `mouse-yank-at-point' is non-nil, insert at point
1084 regardless of where you click."
1086 ;; Give temporary modes such as isearch a chance to turn off.
1088 ;; Without this, confusing things happen upon e.g. inserting into
1089 ;; the middle of an active region.
1097 ;; MS-Windows emulates PRIMARY in x-get-selection, but not
1098 ;; in x-get-selection-value (the latter only accesses the
1099 ;; clipboard). So try PRIMARY first, in case they selected
1100 ;; something with the mouse in the current Emacs session.
1103 ;; Else MS-DOS or X.
1104 ;; On X, x-get-selection-value supports more formats and
1105 ;; encodings, so use it in preference to x-get-selection.
1108 ;; FIXME: What about xterm-mouse-mode etc.?
1116 "Copy the region between point and the mouse click in the kill ring.
1123 ;; This function used to delete the text between point and the mouse
1124 ;; whenever it was equal to the front of the kill ring, but some
1125 ;; people found that confusing.
1127 ;; The position of the last invocation of `mouse-save-then-kill'.
1131 ;; We must make our own undo boundaries
1132 ;; because they happen automatically only for the current buffer.
1135 ;; If we have no undo list in this buffer,
1136 ;; just delete.
1138 ;; Delete, but make the undo-list entry share with the kill ring.
1139 ;; First, delete just one char, so in case buffer is being modified
1140 ;; for the first time, the undo list records that fact.
1145 ;; Undo that deletion--but don't change the undo list!
1148 ;; Now delete the rest of the specified region,
1149 ;; but don't record it.
1155 ;; Search back in buffer-undo-list for the string
1156 ;; that came from deleting one character.
1159 ;; Replace it with an entry for the entire deleted text.
1165 "Set the region according to CLICK; the second time, kill it.
1166 CLICK should be a mouse click event.
1168 If the region is inactive, activate it temporarily. Set mark at
1169 the original point, and move point to the position of CLICK.
1171 If the region is already active, adjust it. Normally, do this by
1172 moving point or mark, whichever is closer, to CLICK. But if you
1173 have selected whole words or lines, move point or mark to the
1174 word or line boundary closest to CLICK instead.
1176 If `mouse-drag-copy-region' is non-nil, this command also saves the
1177 new region to the kill ring (replacing the previous kill if the
1178 previous region was just saved to the kill ring).
1180 If this command is called a second consecutive time with the same
1181 CLICK position, kill the region (or delete it
1182 if `mouse-drag-copy-region' is non-nil)"
1189 ;; Don't let a subsequent kill command append to this one.
1191 ;; Check if the user has multi-clicked to select words/lines.
1195 mouse-selection-click-count
1199 ;; If the user clicked without moving point, kill the region.
1200 ;; This also resets `mouse-selection-click-count'.
1205 ;; Region already saved in the previous click;
1206 ;; don't make a duplicate entry, just delete.
1212 ;; Otherwise, if there is a suitable region, adjust it by moving
1213 ;; one end (whichever is closer) to CLICK-PT.
1218 mouse-save-then-kill-posn)
1220 mouse-set-region))
1232 ;; Region already copied to kill-ring once, so replace.
1234 ;; Arrange for a repeated mouse-3 to kill the region.
1237 ;; Otherwise, set the mark where point is and move to CLICK-PT.
1249 \f
1260 ol)
1261 "An overlay which records the current secondary selection.
1266 ;; A marker which records the specified first end for a secondary selection.
1267 ;; May be nil.
1271 "Set one end of the secondary selection to the position clicked on.
1273 and complete the secondary selection."
1278 ;; Cancel any preexisting secondary selection.
1287 "Set the secondary selection to the text that the mouse is dragged over.
1288 This must be bound to a mouse drag event."
1292 beg
1299 'SECONDARY
1304 "Set the secondary selection to the text that the mouse is dragged over.
1305 Highlight the drag area as you move the mouse.
1306 This must be bound to a button-down mouse event.
1307 The function returns a non-nil value if it creates a secondary selection."
1318 ;; Don't count the mode line.
1324 ;; Double or triple press: make an initial selection
1325 ;; of one word or line.
1330 ;; Single-press: cancel any preexisting secondary selection.
1343 nil
1347 ;; Are we moving within the original window?
1351 click-count)))
1364 mouse-secondary-overlay start-point))
1367 mouse-secondary-overlay start-point)))))))))
1378 nil))
1380 'SECONDARY
1385 "Insert the secondary selection at the position clicked on.
1386 Move point to the end of the inserted text.
1387 If `mouse-yank-at-point' is non-nil, insert at point
1388 regardless of where you click."
1390 ;; Give temporary modes such as isearch a chance to turn off.
1399 "Kill the text in the secondary selection.
1400 This is intended more as a keyboard command than as a mouse command
1401 but it can work as either one.
1403 The current buffer (in case of keyboard use), or the buffer clicked on,
1404 must be the one that the secondary selection is in. This requirement
1405 is to prevent accidents."
1421 "Set the secondary selection and save it to the kill ring.
1422 The second time, kill it. CLICK should be a mouse click event.
1424 If you have not called `mouse-start-secondary' in the clicked
1425 buffer, activate the secondary selection and set it between point
1426 and the click position CLICK.
1428 Otherwise, adjust the bounds of the secondary selection.
1429 Normally, do this by moving its beginning or end, whichever is
1430 closer, to CLICK. But if you have selected whole words or lines,
1431 adjust to the word or line boundary closest to CLICK instead.
1433 If this command is called a second consecutive time with the same
1434 CLICK position, kill the secondary selection."
1441 ;; Don't let a subsequent kill command append to this one.
1443 ;; Check if the user has multi-clicked to select words/lines.
1446 mouse-secondary-click-count
1454 ;; If the secondary selection is not active in BUF, activate it.
1464 ;; If the user clicked without moving point, delete the secondary
1465 ;; selection. This also resets `mouse-secondary-click-count'.
1474 ;; Otherwise, if there is a suitable secondary selection overlay,
1475 ;; adjust it by moving one end (whichever is closer) to CLICK-PT.
1484 ;; If the front of the kill ring comes from an immediately
1485 ;; previous use of this command, replace the entry.
1489 t)
1495 ;; Otherwise, set the secondary selection overlay.
1499 ;; All we have is one end of a selection, so put the other
1500 ;; end here.
1506 ;; Finally, set the window system's secondary selection.
1514 \f
1516 "Number of buffers in one pane (submenu) of the buffer menu.
1517 If we have lots of buffers, divide them into groups of
1518 `mouse-buffer-menu-maxlen' and make a pane (or submenu) for each one."
1525 will split the buffer menu by the major modes (see
1526 `mouse-buffer-menu-mode-groups') or just by menu length.
1527 Set to 1 (or even 0!) if you want to group by major mode always, and to
1528 a large number if you prefer a mixed multitude. The default is 4."
1544 ("Threads\\|Memory\\|Disassembly\\|Breakpoints\\|Frames\\|Locals\\|Registers\\|Inferior I/O\\|Debugger"
1548 Each element has the form (REGEXP . GROUPNAME).
1552 "Pop up a menu of buffers for selection with the mouse.
1553 This switches buffers in the window that you clicked on,
1554 and selects that window."
1558 ;; Make an alist of elements that look like (MENU-ITEM . BUFFER).
1560 ;; Divide all buffers into buckets for various major modes.
1561 ;; Each bucket looks like (MODE NAMESTRING BUFFERS...).
1571 adjusted-major-mode
1576 ;; Compute the sum of squares of sizes of the major-mode buckets.
1581 (+ sum-of-squares
1586 ;; Subdividing by major modes really helps, so let's do it.
1588 ;; Sort the list to put the most popular major modes first.
1593 ;; Make a separate submenu for each major mode
1594 ;; that has more than one buffer,
1595 ;; unless all the remaining buffers are less than 1/10 of them.
1605 this-mode-list)
1606 subdivided-menus))))
1610 ;; If any major modes are left over,
1611 ;; make a single submenu for them.
1615 ;; we don't need split-by-major-mode any more,
1616 ;; so we can ditch it with nconc.
1621 subdivided-menus)))))
1632 window))
1638 head)
1667 list-buffers-directory)))
1669 elt)
1670 head))))
1672 ;; Compensate for the reversal that the above loop does.
1676 ;; If we have lots of buffers, divide them into groups of 20
1677 ;; and make a pane (or submenu) for each one.
1682 ;; Pull off the next mouse-buffer-menu-maxlen buffers
1683 ;; and make them the next element of sublist.
1687 nil))
1689 sublists))
1693 ;; Few buffers--put them all in one pane.
1695 \f
1699 ;; Font selection.
1718 ;; For these, we specify the pixel height and width.
1747 ;; We don't seem to have these; who knows what they are.
1748 ;; ("fg-18" "fg-18")
1749 ;; ("fg-25" "fg-25")
1750 ("lucidasanstypewriter-12" "-b&h-lucidatypewriter-medium-r-normal-sans-*-120-*-*-*-*-iso8859-1")
1751 ("lucidasanstypewriter-bold-14" "-b&h-lucidatypewriter-bold-r-normal-sans-*-140-*-*-*-*-iso8859-1")
1754 ;; ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
1755 ;; ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
1756 )))
1762 ;; For these, we specify the point height.
1787 ))))
1793 "Prompt for a font name, using `x-popup-menu', and return it."
1800 last-nonmenu-event
1808 "Set the default font for the selected frame.
1809 The argument FONTS is a list of font names; the first valid font
1810 in this list is used.
1812 When called interactively, pop up a menu and allow the user to
1813 choose a font."
1819 last-nonmenu-event
1821 ;; Append list of fontsets currently defined.
1843 "Show a menu for changing the default face in the current buffer."
1849 nil ; regenerate new fonts
1850 ;; Initialize mouse-appearance-menu-map
1859 ;; Font selector
1863 ;; If the select-font is unavailable, construct a menu.
1872 font-symbol)
1875 '("--"))
1876 (setq font-symbol (intern (cadr font)))
1877 (define-key submenu-map (vector font-symbol)
1878 (list 'menu-item (car font) font-symbol)))))
1879 (define-key font-submenu (vector (intern submenu-name))
1880 (list 'menu-item submenu-name submenu-map))))
1881 (define-key mouse-appearance-menu-map [font-submenu]
1882 (list 'menu-item "Change Text Font" font-submenu)))))
1883 (let ((choice (x-popup-menu event mouse-appearance-menu-map)))
1884 (setq choice (nth (1- (length choice)) choice))
1885 (cond ((eq choice 'text-scale-increase)
1886 (text-scale-increase 1))
1887 ((eq choice 'text-scale-decrease)
1888 (text-scale-increase -1))
1889 ((eq choice 'face-remap-reset-base)
1890 (text-scale-mode 0)
1891 (buffer-face-mode 0))
1892 (choice
1893 ;; Either choice == 'x-select-font, or choice is a
1894 ;; symbol whose name is a font.
1895 (let ((font (if (eq choice 'x-select-font)
1896 (x-select-font)
1897 (symbol-name choice))))
1898 (buffer-face-mode-invoke
1899 (if (fontp font 'font-spec)
1900 (list :font font)
1901 (font-face-attributes font))
1902 t (called-interactively-p 'interactive)))))))))
1904 \f
1905 ;;; Bindings for mouse commands.
1907 (define-key global-map [down-mouse-1] 'mouse-drag-region)
1908 (global-set-key [mouse-1] 'mouse-set-point)
1909 (global-set-key [drag-mouse-1] 'mouse-set-region)
1911 ;; These are tested for in mouse-drag-region.
1912 (global-set-key [double-mouse-1] 'mouse-set-point)
1913 (global-set-key [triple-mouse-1] 'mouse-set-point)
1915 (defun mouse--strip-first-event (_prompt)
1916 (substring (this-single-command-raw-keys) 1))
1918 (define-key function-key-map [left-fringe mouse-1] 'mouse--strip-first-event)
1919 (define-key function-key-map [right-fringe mouse-1] 'mouse--strip-first-event)
1921 (global-set-key [mouse-2] 'mouse-yank-primary)
1922 ;; Allow yanking also when the corresponding cursor is "in the fringe".
1923 (define-key function-key-map [right-fringe mouse-2] 'mouse--strip-first-event)
1924 (define-key function-key-map [left-fringe mouse-2] 'mouse--strip-first-event)
1925 (global-set-key [mouse-3] 'mouse-save-then-kill)
1926 (define-key function-key-map [right-fringe mouse-3] 'mouse--strip-first-event)
1927 (define-key function-key-map [left-fringe mouse-3] 'mouse--strip-first-event)
1929 ;; By binding these to down-going events, we let the user use the up-going
1930 ;; event to make the selection, saving a click.
1931 (global-set-key [C-down-mouse-1] 'mouse-buffer-menu)
1932 (if (not (eq system-type 'ms-dos))
1933 (global-set-key [S-down-mouse-1] 'mouse-appearance-menu))
1934 ;; C-down-mouse-2 is bound in facemenu.el.
1935 (global-set-key [C-down-mouse-3]
1936 `(menu-item ,(purecopy "Menu Bar") ignore
1937 :filter (lambda (_)
1938 (if (zerop (or (frame-parameter nil 'menu-bar-lines) 0))
1939 (mouse-menu-bar-map)
1940 (mouse-menu-major-mode-map)))))
1942 ;; Binding mouse-1 to mouse-select-window when on mode-, header-, or
1943 ;; vertical-line prevents Emacs from signaling an error when the mouse
1944 ;; button is released after dragging these lines, on non-toolkit
1945 ;; versions.
1946 (global-set-key [mode-line mouse-1] 'mouse-select-window)
1947 (global-set-key [mode-line drag-mouse-1] 'mouse-select-window)
1948 (global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line)
1949 (global-set-key [header-line down-mouse-1] 'mouse-drag-header-line)
1950 (global-set-key [header-line mouse-1] 'mouse-select-window)
1951 (global-set-key [mode-line mouse-2] 'mouse-delete-other-windows)
1952 (global-set-key [mode-line mouse-3] 'mouse-delete-window)
1953 (global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally)
1954 (global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically)
1955 (global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically)
1956 (global-set-key [vertical-line down-mouse-1] 'mouse-drag-vertical-line)
1957 (global-set-key [right-divider down-mouse-1] 'mouse-drag-vertical-line)
1958 (global-set-key [bottom-divider down-mouse-1] 'mouse-drag-mode-line)
1959 (global-set-key [vertical-line mouse-1] 'mouse-select-window)
1961 (provide 'mouse)
1963 ;;; mouse.el ends here