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be010748 RS |
1 | ;;; viper-mous.el --- mouse support for Viper |
2 | ||
ba318903 | 3 | ;; Copyright (C) 1994-1997, 2001-2014 Free Software Foundation, Inc. |
d6fd318f | 4 | |
50a07e18 | 5 | ;; Author: Michael Kifer <kifer@cs.stonybrook.edu> |
bd78fa1d | 6 | ;; Package: viper |
02f34c70 | 7 | |
6c2e12f4 KH |
8 | ;; This file is part of GNU Emacs. |
9 | ||
ed0f493f | 10 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
6c2e12f4 | 11 | ;; it under the terms of the GNU General Public License as published by |
ed0f493f GM |
12 | ;; the Free Software Foundation, either version 3 of the License, or |
13 | ;; (at your option) any later version. | |
6c2e12f4 KH |
14 | |
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
ed0f493f | 21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
6c2e12f4 | 22 | |
60370d40 PJ |
23 | ;;; Commentary: |
24 | ||
25 | ;;; Code: | |
03fc1246 | 26 | |
9b70a748 | 27 | (provide 'viper-mous) |
6c2e12f4 | 28 | |
03fc1246 MK |
29 | ;; compiler pacifier |
30 | (defvar double-click-time) | |
31 | (defvar mouse-track-multi-click-time) | |
8626cfa2 MK |
32 | (defvar viper-search-start-marker) |
33 | (defvar viper-local-search-start-marker) | |
34 | (defvar viper-search-history) | |
35 | (defvar viper-s-string) | |
36 | (defvar viper-re-search) | |
9b70a748 | 37 | |
9b70a748 | 38 | (require 'viper-util) |
9c6906f6 | 39 | ;; end pacifier |
9b70a748 | 40 | |
03fc1246 | 41 | |
1e70790f | 42 | (defgroup viper-mouse nil |
eca4927a | 43 | "Support for Viper special mouse-bound commands." |
8626cfa2 | 44 | :prefix "viper-" |
1e70790f MK |
45 | :group 'viper) |
46 | ||
6c2e12f4 KH |
47 | \f |
48 | ;;; Variables | |
a1506d29 | 49 | |
6c2e12f4 KH |
50 | ;; Variable used for catching the switch-frame event. |
51 | ;; If non-nil, indicates that previous-frame should be the selected | |
3af0304a | 52 | ;; one. Used by viper-mouse-click-get-word. Not a user option. |
8626cfa2 | 53 | (defvar viper-frame-of-focus nil) |
a1506d29 | 54 | |
6c2e12f4 | 55 | ;; Frame that was selected before the switch-frame event. |
8ea74b0e | 56 | (defvar viper-current-frame-saved (selected-frame)) |
a1506d29 | 57 | |
8626cfa2 | 58 | (defcustom viper-surrounding-word-function 'viper-surrounding-word |
fb7ada5f | 59 | "Function that determines what constitutes a word for clicking events. |
a1506d29 | 60 | Takes two parameters: a COUNT, indicating how many words to return, |
6c2e12f4 | 61 | and CLICK-COUNT, telling whether this is the first click, a double-click, |
ee7683eb | 62 | or a triple-click." |
3af0304a | 63 | :type 'symbol |
1e70790f | 64 | :group 'viper-mouse) |
a1506d29 | 65 | |
6c2e12f4 KH |
66 | ;; time interval in millisecond within which successive clicks are |
67 | ;; considered related | |
8626cfa2 | 68 | (defcustom viper-multiclick-timeout (if (viper-window-display-p) |
e83d1fe8 | 69 | (if (featurep 'xemacs) |
1e70790f MK |
70 | mouse-track-multi-click-time |
71 | double-click-time) | |
72 | 500) | |
fb7ada5f | 73 | "Time interval in millisecond within which successive mouse clicks are |
1e70790f MK |
74 | considered related." |
75 | :type 'integer | |
76 | :group 'viper-mouse) | |
6c2e12f4 KH |
77 | |
78 | ;; current event click count; XEmacs only | |
8626cfa2 | 79 | (defvar viper-current-click-count 0) |
6c2e12f4 | 80 | ;; time stamp of the last click event; XEmacs only |
8626cfa2 | 81 | (defvar viper-last-click-event-timestamp 0) |
6c2e12f4 KH |
82 | |
83 | ;; Local variable used to toggle wraparound search on click. | |
8626cfa2 | 84 | (viper-deflocalvar viper-mouse-click-search-noerror t) |
a1506d29 | 85 | |
6c2e12f4 | 86 | ;; Local variable used to delimit search after wraparound. |
8626cfa2 | 87 | (viper-deflocalvar viper-mouse-click-search-limit nil) |
a1506d29 | 88 | |
6c2e12f4 KH |
89 | ;; remembers prefix argument to pass along to commands invoked by second |
90 | ;; click. | |
e1dbe924 | 91 | ;; This is needed because in Emacs (not XEmacs), assigning to prefix-arg |
6c2e12f4 | 92 | ;; causes Emacs to count the second click as if it was a single click |
8626cfa2 MK |
93 | (defvar viper-global-prefix-argument nil) |
94 | ||
95 | ||
96 | ;; same keys, but parsed | |
97 | (defvar viper-mouse-up-search-key-parsed nil) | |
98 | (defvar viper-mouse-down-search-key-parsed nil) | |
99 | (defvar viper-mouse-up-insert-key-parsed nil) | |
100 | (defvar viper-mouse-down-insert-key-parsed nil) | |
101 | ||
6c2e12f4 KH |
102 | |
103 | ||
104 | \f | |
105 | ;;; Code | |
106 | ||
8626cfa2 MK |
107 | (defsubst viper-multiclick-p () |
108 | (not (viper-sit-for-short viper-multiclick-timeout t))) | |
95d70c42 MK |
109 | |
110 | ;; Returns window where click occurs | |
328b4b70 | 111 | (defun viper-mouse-click-window (click) |
c92d7d39 GM |
112 | (let ((win (if (featurep 'xemacs) (event-window click) |
113 | (posn-window (event-start click))))) | |
328b4b70 MK |
114 | (if (window-live-p win) |
115 | win | |
116 | (error "Click was not over a live window")))) | |
95d70c42 MK |
117 | |
118 | ;; Returns window where click occurs | |
8626cfa2 MK |
119 | (defsubst viper-mouse-click-frame (click) |
120 | (window-frame (viper-mouse-click-window click))) | |
95d70c42 MK |
121 | |
122 | ;; Returns the buffer of the window where click occurs | |
8626cfa2 MK |
123 | (defsubst viper-mouse-click-window-buffer (click) |
124 | (window-buffer (viper-mouse-click-window click))) | |
95d70c42 MK |
125 | |
126 | ;; Returns the name of the buffer in the window where click occurs | |
8626cfa2 MK |
127 | (defsubst viper-mouse-click-window-buffer-name (click) |
128 | (buffer-name (viper-mouse-click-window-buffer click))) | |
95d70c42 MK |
129 | |
130 | ;; Returns position of a click | |
8626cfa2 | 131 | (defsubst viper-mouse-click-posn (click) |
c92d7d39 GM |
132 | (if (featurep 'xemacs) (event-point click) |
133 | (posn-point (event-start click)))) | |
a1506d29 | 134 | |
95d70c42 | 135 | |
9c6906f6 GM |
136 | |
137 | (declare-function viper-backward-char-carefully "viper-cmd" (&optional arg)) | |
138 | (declare-function viper-forward-char-carefully "viper-cmd" (&optional arg)) | |
139 | ||
8626cfa2 | 140 | (defun viper-surrounding-word (count click-count) |
6c2e12f4 KH |
141 | "Returns word surrounding point according to a heuristic. |
142 | COUNT indicates how many regions to return. | |
61d0d254 MK |
143 | If CLICK-COUNT is 1, `word' is a word in Vi sense. |
144 | If CLICK-COUNT is 2,then `word' is a Word in Vi sense. | |
6c2e12f4 KH |
145 | If the character clicked on is a non-separator and is non-alphanumeric but |
146 | is adjacent to an alphanumeric symbol, then it is considered alphanumeric | |
3af0304a | 147 | for the purpose of this command. If this character has a matching |
6c2e12f4 KH |
148 | character, such as `\(' is a match for `\)', then the matching character is |
149 | also considered alphanumeric. | |
61d0d254 MK |
150 | For convenience, in Lisp modes, `-' is considered alphanumeric. |
151 | ||
152 | If CLICK-COUNT is 3 or more, returns the line clicked on with leading and | |
3af0304a | 153 | trailing space and tabs removed. In that case, the first argument, COUNT, |
61d0d254 | 154 | is ignored." |
22b63058 | 155 | (let ((modifiers "_") |
c9dd7f74 | 156 | beg skip-flag result |
a595547c | 157 | word-beg) |
c9dd7f74 | 158 | (if (> click-count 2) |
61d0d254 MK |
159 | (save-excursion |
160 | (beginning-of-line) | |
8626cfa2 | 161 | (viper-skip-all-separators-forward 'within-line) |
61d0d254 MK |
162 | (setq beg (point)) |
163 | (end-of-line) | |
c9dd7f74 | 164 | (setq result (buffer-substring beg (point)))) |
a1506d29 | 165 | |
8626cfa2 MK |
166 | (if (and (not (viper-looking-at-alphasep)) |
167 | (or (save-excursion (viper-backward-char-carefully) | |
168 | (viper-looking-at-alpha)) | |
169 | (save-excursion (viper-forward-char-carefully) | |
170 | (viper-looking-at-alpha)))) | |
a595547c | 171 | (setq modifiers |
22b63058 KH |
172 | (concat modifiers |
173 | (cond ((looking-at "\\\\") "\\\\") | |
174 | ((looking-at "-") "C-C-") | |
175 | ((looking-at "[][]") "][") | |
176 | ((looking-at "[()]") ")(") | |
177 | ((looking-at "[{}]") "{}") | |
178 | ((looking-at "[<>]") "<>") | |
179 | ((looking-at "[`']") "`'") | |
180 | ((looking-at "\\^") "\\^") | |
181 | ((viper-looking-at-separator) "") | |
182 | (t (char-to-string (following-char)))) | |
183 | ) | |
a595547c | 184 | )) |
a1506d29 | 185 | |
a595547c | 186 | ;; Add `-' to alphanum, if it wasn't added and if we are in Lisp |
61d0d254 MK |
187 | (or (looking-at "-") |
188 | (not (string-match "lisp" (symbol-name major-mode))) | |
a595547c | 189 | (setq modifiers (concat modifiers "C-C-"))) |
a1506d29 JB |
190 | |
191 | ||
61d0d254 | 192 | (save-excursion |
8626cfa2 MK |
193 | (cond ((> click-count 1) (viper-skip-nonseparators 'backward)) |
194 | ((viper-looking-at-alpha modifiers) | |
195 | (viper-skip-alpha-backward modifiers)) | |
196 | ((not (viper-looking-at-alphasep modifiers)) | |
197 | (viper-skip-nonalphasep-backward)) | |
a595547c | 198 | (t (if (> click-count 1) |
8626cfa2 MK |
199 | (viper-skip-nonseparators 'backward) |
200 | (viper-skip-alpha-backward modifiers)))) | |
a595547c | 201 | |
61d0d254 | 202 | (setq word-beg (point)) |
a1506d29 | 203 | |
a595547c | 204 | (setq skip-flag nil) ; don't move 1 char forw the first time |
61d0d254 | 205 | (while (> count 0) |
8626cfa2 | 206 | (if skip-flag (viper-forward-char-carefully 1)) |
a595547c MK |
207 | (setq skip-flag t) ; now always move 1 char forward |
208 | (if (> click-count 1) | |
8626cfa2 MK |
209 | (viper-skip-nonseparators 'forward) |
210 | (viper-skip-alpha-forward modifiers)) | |
61d0d254 | 211 | (setq count (1- count))) |
a595547c | 212 | |
c9dd7f74 MK |
213 | (setq result (buffer-substring word-beg (point)))) |
214 | ) ; if | |
a595547c | 215 | ;; XEmacs doesn't have set-text-properties, but there buffer-substring |
c9dd7f74 | 216 | ;; doesn't return properties together with the string, so it's not needed. |
e83d1fe8 | 217 | (if (featurep 'emacs) |
c9dd7f74 MK |
218 | (set-text-properties 0 (length result) nil result)) |
219 | result | |
220 | )) | |
6c2e12f4 KH |
221 | |
222 | ||
8626cfa2 | 223 | (defun viper-mouse-click-get-word (click count click-count) |
6c2e12f4 | 224 | "Returns word surrounding the position of a mouse click. |
3af0304a | 225 | Click may be in another window. Current window and buffer isn't changed. |
61d0d254 | 226 | On single or double click, returns the word as determined by |
8626cfa2 | 227 | `viper-surrounding-word-function'." |
a1506d29 | 228 | |
6c2e12f4 | 229 | (let ((click-word "") |
8626cfa2 MK |
230 | (click-pos (viper-mouse-click-posn click)) |
231 | (click-buf (viper-mouse-click-window-buffer click))) | |
bbe6126c MK |
232 | (or (natnump count) (setq count 1)) |
233 | (or (natnump click-count) (setq click-count 1)) | |
a1506d29 | 234 | |
6c2e12f4 KH |
235 | (save-excursion |
236 | (save-window-excursion | |
237 | (if click-pos | |
238 | (progn | |
239 | (set-buffer click-buf) | |
a1506d29 | 240 | |
6c2e12f4 KH |
241 | (goto-char click-pos) |
242 | (setq click-word | |
8626cfa2 | 243 | (funcall viper-surrounding-word-function count click-count))) |
60370d40 | 244 | (error "Click must be over a window")) |
6c2e12f4 KH |
245 | click-word)))) |
246 | ||
6c2e12f4 | 247 | |
8626cfa2 | 248 | (defun viper-mouse-click-insert-word (click arg) |
6c2e12f4 KH |
249 | "Insert word clicked or double-clicked on. |
250 | With prefix argument, N, insert that many words. | |
251 | This command must be bound to a mouse click. | |
252 | The double-click action of the same mouse button must not be bound | |
253 | \(or it must be bound to the same function\). | |
8626cfa2 | 254 | See `viper-surrounding-word' for the definition of a word in this case." |
6c2e12f4 | 255 | (interactive "e\nP") |
8626cfa2 MK |
256 | (if viper-frame-of-focus ;; to handle clicks in another frame |
257 | (select-frame viper-frame-of-focus)) | |
3af0304a MK |
258 | (if (save-excursion |
259 | (or (not (eq (key-binding viper-mouse-down-insert-key-parsed) | |
260 | 'viper-mouse-catch-frame-switch)) | |
261 | (not (eq (key-binding viper-mouse-up-insert-key-parsed) | |
262 | 'viper-mouse-click-insert-word)) | |
e83d1fe8 | 263 | (and (featurep 'xemacs) (not (event-over-text-area-p click))))) |
96dffd25 MK |
264 | () ; do nothing, if binding isn't right or not over text |
265 | ;; turn arg into a number | |
266 | (cond ((integerp arg) nil) | |
267 | ;; prefix arg is a list when one hits C-u then command | |
268 | ((and (listp arg) (integerp (car arg))) | |
269 | (setq arg (car arg))) | |
270 | (t (setq arg 1))) | |
a1506d29 | 271 | |
96dffd25 MK |
272 | (if (not (eq (key-binding viper-mouse-down-insert-key-parsed) |
273 | 'viper-mouse-catch-frame-switch)) | |
274 | () ; do nothing | |
275 | (let (click-count interrupting-event) | |
276 | (if (and | |
277 | (viper-multiclick-p) | |
278 | ;; This trick checks if there is a pending mouse event if so, we | |
279 | ;; use this latter event and discard the current mouse click If | |
280 | ;; the next pending event is not a mouse event, we execute the | |
281 | ;; current mouse event | |
282 | (progn | |
283 | (setq interrupting-event (viper-read-event)) | |
284 | (viper-mouse-event-p last-input-event))) | |
285 | (progn ; interrupted wait | |
286 | (setq viper-global-prefix-argument arg) | |
287 | ;; count this click for XEmacs | |
288 | (viper-event-click-count click)) | |
289 | ;; uninterrupted wait or the interrupting event wasn't a mouse event | |
290 | (setq click-count (viper-event-click-count click)) | |
291 | (if (> click-count 1) | |
292 | (setq arg viper-global-prefix-argument | |
293 | viper-global-prefix-argument nil)) | |
294 | (insert (viper-mouse-click-get-word click arg click-count)) | |
295 | (if (and interrupting-event | |
296 | (eventp interrupting-event) | |
297 | (not (viper-mouse-event-p interrupting-event))) | |
298 | (viper-set-unread-command-events interrupting-event)) | |
299 | ))))) | |
a1506d29 | 300 | |
3af0304a | 301 | ;; Arg is an event. Accepts symbols and numbers, too |
8626cfa2 | 302 | (defun viper-mouse-event-p (event) |
6c2e12f4 KH |
303 | (if (eventp event) |
304 | (string-match "\\(mouse-\\|frame\\|screen\\|track\\)" | |
8626cfa2 | 305 | (prin1-to-string (viper-event-key event))))) |
a1506d29 | 306 | |
3af0304a | 307 | ;; XEmacs has no double-click events. So, we must simulate. |
6c2e12f4 | 308 | ;; So, we have to simulate event-click-count. |
8626cfa2 | 309 | (defun viper-event-click-count (click) |
c92d7d39 GM |
310 | (if (featurep 'xemacs) (viper-event-click-count-xemacs click) |
311 | (event-click-count click))) | |
312 | ||
313 | (when (featurep 'xemacs) | |
314 | ||
315 | ;; kind of semaphore for updating viper-current-click-count | |
316 | (defvar viper-counting-clicks-p nil) | |
317 | ||
318 | (defun viper-event-click-count-xemacs (click) | |
319 | (let ((time-delta (- (event-timestamp click) | |
320 | viper-last-click-event-timestamp)) | |
321 | inhibit-quit) | |
322 | (while viper-counting-clicks-p | |
323 | (ignore)) | |
324 | (setq viper-counting-clicks-p t) | |
325 | (if (> time-delta viper-multiclick-timeout) | |
326 | (setq viper-current-click-count 0)) | |
327 | (discard-input) | |
328 | (setq viper-current-click-count (1+ viper-current-click-count) | |
329 | viper-last-click-event-timestamp (event-timestamp click)) | |
330 | (setq viper-counting-clicks-p nil) | |
331 | (if (viper-sit-for-short viper-multiclick-timeout t) | |
332 | viper-current-click-count | |
333 | 0)))) | |
a1506d29 | 334 | |
9c6906f6 GM |
335 | (declare-function viper-forward-word "viper-cmd" (arg)) |
336 | (declare-function viper-adjust-window "viper-cmd" ()) | |
6c2e12f4 | 337 | |
8626cfa2 | 338 | (defun viper-mouse-click-search-word (click arg) |
3af0304a | 339 | "Find the word clicked or double-clicked on. Word may be in another window. |
6c2e12f4 | 340 | With prefix argument, N, search for N-th occurrence. |
3af0304a | 341 | This command must be bound to a mouse click. The double-click action of the |
6c2e12f4 | 342 | same button must not be bound \(or it must be bound to the same function\). |
8626cfa2 | 343 | See `viper-surrounding-word' for the details on what constitutes a word for |
6c2e12f4 KH |
344 | this command." |
345 | (interactive "e\nP") | |
8626cfa2 MK |
346 | (if viper-frame-of-focus ;; to handle clicks in another frame |
347 | (select-frame viper-frame-of-focus)) | |
3af0304a MK |
348 | (if (save-excursion |
349 | (or (not (eq (key-binding viper-mouse-down-search-key-parsed) | |
350 | 'viper-mouse-catch-frame-switch)) | |
351 | (not (eq (key-binding viper-mouse-up-search-key-parsed) | |
352 | 'viper-mouse-click-search-word)) | |
e83d1fe8 | 353 | (and (featurep 'xemacs) (not (event-over-text-area-p click))))) |
96dffd25 | 354 | () ; do nothing, if binding isn't right or not over text |
8626cfa2 MK |
355 | (let ((previous-search-string viper-s-string) |
356 | click-word click-count) | |
a1506d29 | 357 | |
8626cfa2 MK |
358 | (if (and |
359 | (viper-multiclick-p) | |
360 | ;; This trick checks if there is a pending mouse event if so, we use | |
361 | ;; this latter event and discard the current mouse click If the next | |
362 | ;; pending event is not a mouse event, we execute the current mouse | |
363 | ;; event | |
364 | (progn | |
365 | (viper-read-event) | |
366 | (viper-mouse-event-p last-input-event))) | |
367 | (progn ; interrupted wait | |
3af0304a MK |
368 | (setq viper-global-prefix-argument (or viper-global-prefix-argument |
369 | arg) | |
370 | ;; remember command that was before the multiclick | |
371 | this-command last-command) | |
8626cfa2 MK |
372 | ;; make sure we counted this event---needed for XEmacs only |
373 | (viper-event-click-count click)) | |
374 | ;; uninterrupted wait | |
375 | (setq click-count (viper-event-click-count click)) | |
376 | (setq click-word (viper-mouse-click-get-word click nil click-count)) | |
a1506d29 | 377 | |
8626cfa2 MK |
378 | (if (> click-count 1) |
379 | (setq arg viper-global-prefix-argument | |
380 | viper-global-prefix-argument nil)) | |
381 | (setq arg (or arg 1)) | |
a1506d29 | 382 | |
8626cfa2 MK |
383 | (viper-deactivate-mark) |
384 | (if (or (not (string= click-word viper-s-string)) | |
385 | (not (markerp viper-search-start-marker)) | |
386 | (not (equal (marker-buffer viper-search-start-marker) | |
387 | (current-buffer))) | |
388 | (not (eq last-command 'viper-mouse-click-search-word))) | |
6c2e12f4 | 389 | (progn |
8626cfa2 MK |
390 | (setq viper-search-start-marker (point-marker) |
391 | viper-local-search-start-marker viper-search-start-marker | |
392 | viper-mouse-click-search-noerror t | |
393 | viper-mouse-click-search-limit nil) | |
a1506d29 | 394 | |
8626cfa2 MK |
395 | ;; make search string known to Viper |
396 | (setq viper-s-string (if viper-re-search | |
397 | (regexp-quote click-word) | |
398 | click-word)) | |
399 | (if (not (string= viper-s-string (car viper-search-history))) | |
400 | (setq viper-search-history | |
401 | (cons viper-s-string viper-search-history))) | |
402 | )) | |
a1506d29 | 403 | |
8626cfa2 MK |
404 | (push-mark nil t) |
405 | (while (> arg 0) | |
406 | (viper-forward-word 1) | |
407 | (condition-case nil | |
408 | (progn | |
409 | (if (not (search-forward | |
410 | click-word viper-mouse-click-search-limit | |
411 | viper-mouse-click-search-noerror)) | |
412 | (progn | |
413 | (setq viper-mouse-click-search-noerror nil) | |
414 | (setq viper-mouse-click-search-limit | |
415 | (save-excursion | |
416 | (if (and | |
417 | (markerp viper-local-search-start-marker) | |
418 | (marker-buffer viper-local-search-start-marker)) | |
419 | (goto-char viper-local-search-start-marker)) | |
420 | (viper-line-pos 'end))) | |
a1506d29 | 421 | |
8626cfa2 MK |
422 | (goto-char (point-min)) |
423 | (search-forward click-word | |
424 | viper-mouse-click-search-limit nil))) | |
425 | (goto-char (match-beginning 0)) | |
426 | (message "Searching for: %s" viper-s-string) | |
427 | (if (<= arg 1) ; found the right occurrence of the pattern | |
428 | (progn | |
429 | (viper-adjust-window) | |
430 | (viper-flash-search-pattern))) | |
431 | ) | |
432 | (error (beep 1) | |
433 | (if (or (not (string= click-word previous-search-string)) | |
434 | (not (eq last-command 'viper-mouse-click-search-word))) | |
435 | (message "`%s': String not found in %s" | |
436 | viper-s-string (buffer-name (current-buffer))) | |
437 | (message | |
3af0304a | 438 | "`%s': Last occurrence in %s. Back to beginning of search" |
8626cfa2 MK |
439 | click-word (buffer-name (current-buffer))) |
440 | (setq arg 1) ;; to terminate the loop | |
441 | (sit-for 2)) | |
a1506d29 | 442 | (setq viper-mouse-click-search-noerror t) |
8626cfa2 MK |
443 | (setq viper-mouse-click-search-limit nil) |
444 | (if (and (markerp viper-local-search-start-marker) | |
445 | (marker-buffer viper-local-search-start-marker)) | |
446 | (goto-char viper-local-search-start-marker)))) | |
447 | (setq arg (1- arg))) | |
448 | )))) | |
a1506d29 | 449 | |
8626cfa2 | 450 | (defun viper-mouse-catch-frame-switch (event arg) |
6c2e12f4 | 451 | "Catch the event of switching frame. |
3af0304a | 452 | Usually is bound to a `down-mouse' event to work properly. See sample |
d5e52f99 | 453 | bindings in the Viper manual." |
6c2e12f4 | 454 | (interactive "e\nP") |
8626cfa2 MK |
455 | (setq viper-frame-of-focus nil) |
456 | ;; pass prefix arg along to viper-mouse-click-search/insert-word | |
6c2e12f4 KH |
457 | (setq prefix-arg arg) |
458 | (if (eq last-command 'handle-switch-frame) | |
8626cfa2 MK |
459 | (setq viper-frame-of-focus viper-current-frame-saved)) |
460 | ;; make Emacs forget that it executed viper-mouse-catch-frame-switch | |
6c2e12f4 | 461 | (setq this-command last-command)) |
a1506d29 | 462 | |
3af0304a | 463 | ;; Called just before switching frames. Saves the old selected frame. |
6c2e12f4 | 464 | ;; Sets last-command to handle-switch-frame (this is done automatically in |
a1506d29 | 465 | ;; Emacs. |
6c2e12f4 KH |
466 | ;; The semantics of switching frames is different in Emacs and XEmacs. |
467 | ;; In Emacs, if you select-frame A while mouse is over frame B and then | |
468 | ;; start typing, input goes to frame B, which becomes selected. | |
3af0304a | 469 | ;; In XEmacs, input will go to frame A. This may be a bug in one of the |
6c2e12f4 KH |
470 | ;; Emacsen, but also may be a design decision. |
471 | ;; Also, in Emacs sending input to frame B generates handle-switch-frame | |
472 | ;; event, while in XEmacs it doesn't. | |
473 | ;; All this accounts for the difference in the behavior of | |
8626cfa2 | 474 | ;; viper-mouse-click-* commands when you click in a frame other than the one |
3af0304a | 475 | ;; that was the last to receive input. In Emacs, focus will be in frame A |
8626cfa2 | 476 | ;; until you do something other than viper-mouse-click-* command. |
6c2e12f4 KH |
477 | ;; In XEmacs, you have to manually select frame B (with the mouse click) in |
478 | ;; order to shift focus to frame B. | |
8626cfa2 | 479 | (defsubst viper-remember-current-frame (frame) |
546fe085 | 480 | (setq last-command 'handle-switch-frame |
8626cfa2 MK |
481 | viper-current-frame-saved (selected-frame))) |
482 | ||
483 | ||
484 | ;; The key is of the form (MODIFIER ... BUTTON-NUMBER) | |
485 | ;; Converts into a valid mouse button spec for the appropriate version of | |
3af0304a | 486 | ;; Emacs. EVENT-TYPE is either `up' or `down'. Up returns button-up key; down |
8626cfa2 MK |
487 | ;; returns button-down key. |
488 | (defun viper-parse-mouse-key (key-var event-type) | |
489 | (let ((key (eval key-var)) | |
490 | button-spec meta-spec shift-spec control-spec key-spec) | |
491 | (if (null key) | |
492 | ;; just return nil | |
493 | () | |
494 | (setq button-spec | |
495 | (cond ((memq 1 key) | |
e83d1fe8 | 496 | (if (featurep 'emacs) |
8626cfa2 MK |
497 | (if (eq 'up event-type) |
498 | "mouse-1" "down-mouse-1") | |
499 | (if (eq 'up event-type) | |
500 | 'button1up 'button1))) | |
501 | ((memq 2 key) | |
e83d1fe8 | 502 | (if (featurep 'emacs) |
8626cfa2 MK |
503 | (if (eq 'up event-type) |
504 | "mouse-2" "down-mouse-2") | |
505 | (if (eq 'up event-type) | |
506 | 'button2up 'button2))) | |
507 | ((memq 3 key) | |
e83d1fe8 | 508 | (if (featurep 'emacs) |
8626cfa2 MK |
509 | (if (eq 'up event-type) |
510 | "mouse-3" "down-mouse-3") | |
511 | (if (eq 'up event-type) | |
512 | 'button3up 'button3))) | |
513 | (t (error | |
514 | "%S: invalid button number, %S" key-var key))) | |
515 | meta-spec | |
516 | (if (memq 'meta key) | |
e83d1fe8 DN |
517 | (if (featurep 'emacs) "M-" 'meta) |
518 | (if (featurep 'emacs) "" nil)) | |
8626cfa2 MK |
519 | shift-spec |
520 | (if (memq 'shift key) | |
e83d1fe8 DN |
521 | (if (featurep 'emacs) "S-" 'shift) |
522 | (if (featurep 'emacs) "" nil)) | |
8626cfa2 MK |
523 | control-spec |
524 | (if (memq 'control key) | |
e83d1fe8 DN |
525 | (if (featurep 'emacs) "C-" 'control) |
526 | (if (featurep 'emacs) "" nil))) | |
8626cfa2 | 527 | |
e83d1fe8 | 528 | (setq key-spec (if (featurep 'emacs) |
8626cfa2 MK |
529 | (vector |
530 | (intern | |
531 | (concat | |
532 | control-spec meta-spec shift-spec button-spec))) | |
533 | (vector | |
534 | (delq | |
535 | nil | |
536 | (list | |
537 | control-spec meta-spec shift-spec button-spec))))) | |
538 | ))) | |
539 | ||
540 | (defun viper-unbind-mouse-search-key () | |
541 | (if viper-mouse-up-search-key-parsed | |
542 | (global-unset-key viper-mouse-up-search-key-parsed)) | |
543 | (if viper-mouse-down-search-key-parsed | |
544 | (global-unset-key viper-mouse-down-search-key-parsed)) | |
545 | (setq viper-mouse-up-search-key-parsed nil | |
546 | viper-mouse-down-search-key-parsed nil)) | |
547 | ||
548 | (defun viper-unbind-mouse-insert-key () | |
549 | (if viper-mouse-up-insert-key-parsed | |
550 | (global-unset-key viper-mouse-up-insert-key-parsed)) | |
551 | (if viper-mouse-down-insert-key-parsed | |
552 | (global-unset-key viper-mouse-down-insert-key-parsed)) | |
553 | (setq viper-mouse-up-insert-key-parsed nil | |
554 | viper-mouse-down-insert-key-parsed nil)) | |
555 | ||
556 | ;; If FORCE, bind even if this mouse action is already bound to something else | |
557 | (defun viper-bind-mouse-search-key (&optional force) | |
558 | (setq viper-mouse-up-search-key-parsed | |
559 | (viper-parse-mouse-key 'viper-mouse-search-key 'up) | |
560 | viper-mouse-down-search-key-parsed | |
561 | (viper-parse-mouse-key 'viper-mouse-search-key 'down)) | |
562 | (cond ((or (null viper-mouse-up-search-key-parsed) | |
563 | (null viper-mouse-down-search-key-parsed)) | |
564 | nil) ; just quit | |
a1506d29 | 565 | ((and (null force) |
8626cfa2 MK |
566 | (key-binding viper-mouse-up-search-key-parsed) |
567 | (not (eq (key-binding viper-mouse-up-search-key-parsed) | |
568 | 'viper-mouse-click-search-word))) | |
a1506d29 | 569 | (message |
3af0304a | 570 | "%S already bound to a mouse event. Viper mouse-search feature disabled" |
8626cfa2 | 571 | viper-mouse-up-search-key-parsed)) |
a1506d29 | 572 | ((and (null force) |
8626cfa2 MK |
573 | (key-binding viper-mouse-down-search-key-parsed) |
574 | (not (eq (key-binding viper-mouse-down-search-key-parsed) | |
575 | 'viper-mouse-catch-frame-switch))) | |
576 | (message | |
3af0304a | 577 | "%S already bound to a mouse event. Viper mouse-search feature disabled" |
8626cfa2 | 578 | viper-mouse-down-search-key-parsed)) |
a1506d29 | 579 | (t |
8626cfa2 MK |
580 | (global-set-key viper-mouse-up-search-key-parsed |
581 | 'viper-mouse-click-search-word) | |
582 | (global-set-key viper-mouse-down-search-key-parsed | |
583 | 'viper-mouse-catch-frame-switch)))) | |
584 | ||
585 | ;; If FORCE, bind even if this mouse action is already bound to something else | |
586 | (defun viper-bind-mouse-insert-key (&optional force) | |
587 | (setq viper-mouse-up-insert-key-parsed | |
588 | (viper-parse-mouse-key 'viper-mouse-insert-key 'up) | |
589 | viper-mouse-down-insert-key-parsed | |
590 | (viper-parse-mouse-key 'viper-mouse-insert-key 'down)) | |
591 | (cond ((or (null viper-mouse-up-insert-key-parsed) | |
592 | (null viper-mouse-down-insert-key-parsed)) | |
593 | nil) ; just quit | |
594 | ((and (null force) | |
595 | (key-binding viper-mouse-up-insert-key-parsed) | |
596 | (not (eq (key-binding viper-mouse-up-insert-key-parsed) | |
597 | 'viper-mouse-click-insert-word))) | |
a1506d29 | 598 | (message |
3af0304a | 599 | "%S already bound to a mouse event. Viper mouse-insert feature disabled" |
8626cfa2 MK |
600 | viper-mouse-up-insert-key-parsed)) |
601 | ((and (null force) | |
602 | (key-binding viper-mouse-down-insert-key-parsed) | |
603 | (not (eq (key-binding viper-mouse-down-insert-key-parsed) | |
604 | 'viper-mouse-catch-frame-switch))) | |
605 | (message | |
3af0304a | 606 | "%S already bound to a mouse event. Viper mouse-insert feature disabled" |
8626cfa2 | 607 | viper-mouse-down-insert-key-parsed)) |
a1506d29 | 608 | (t |
8626cfa2 MK |
609 | (global-set-key viper-mouse-up-insert-key-parsed |
610 | 'viper-mouse-click-insert-word) | |
611 | (global-set-key viper-mouse-down-insert-key-parsed | |
612 | 'viper-mouse-catch-frame-switch)))) | |
613 | ||
614 | (defun viper-reset-mouse-search-key (symb val) | |
615 | (viper-unbind-mouse-search-key) | |
616 | (set symb val) | |
617 | (viper-bind-mouse-search-key 'force)) | |
618 | ||
619 | (defun viper-reset-mouse-insert-key (symb val) | |
620 | (viper-unbind-mouse-insert-key) | |
621 | (set symb val) | |
622 | (viper-bind-mouse-insert-key 'force)) | |
623 | ||
624 | ||
625 | (defcustom viper-mouse-search-key '(meta shift 1) | |
fb7ada5f | 626 | "Key used to click-search in Viper. |
a27f97ee RS |
627 | This must be a list that specifies the mouse button and modifiers. |
628 | The supported modifiers are `meta', `shift', and `control'. | |
629 | For instance, `(meta shift 1)' means that holding the meta and shift | |
630 | keys down and clicking on a word with mouse button 1 | |
631 | will search for that word in the buffer that was current before the click. | |
632 | This buffer may be different from the one where the click occurred." | |
f0f90cfd RS |
633 | :type '(list (set :inline t :tag "Modifiers" :format "%t: %v" |
634 | (const :format "%v " meta) | |
635 | (const :format "%v " shift) | |
636 | (const control)) | |
637 | (integer :tag "Button")) | |
8626cfa2 MK |
638 | :set 'viper-reset-mouse-search-key |
639 | :group 'viper-mouse) | |
640 | ||
641 | (defcustom viper-mouse-insert-key '(meta shift 2) | |
fb7ada5f | 642 | "Key used to click-insert in Viper. |
a27f97ee RS |
643 | Must be a list that specifies the mouse button and modifiers. |
644 | The supported modifiers are `meta', `shift', and `control'. | |
645 | For instance, `(meta shift 2)' means that holding the meta and shift keys | |
646 | down, and clicking on a word with mouse button 2, will insert that word | |
647 | at the cursor in the buffer that was current just before the click. | |
648 | This buffer may be different from the one where the click occurred." | |
f0f90cfd RS |
649 | :type '(list (set :inline t :tag "Modifiers" :format "%t: %v" |
650 | (const :format "%v " meta) | |
651 | (const :format "%v " shift) | |
652 | (const control)) | |
653 | (integer :tag "Button")) | |
8626cfa2 MK |
654 | :set 'viper-reset-mouse-insert-key |
655 | :group 'viper-mouse) | |
a1506d29 | 656 | |
6c2e12f4 KH |
657 | |
658 | ||
fa043571 SM |
659 | ;; Local Variables: |
660 | ;; eval: (put 'viper-deflocalvar 'lisp-indent-hook 'defun) | |
661 | ;; End: | |
1e70790f | 662 | |
6c2e12f4 | 663 | |
60370d40 | 664 | ;;; viper-mous.el ends here |