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be010748 RS |
1 | ;;; viper-mous.el --- mouse support for Viper |
2 | ||
9b70a748 | 3 | ;; Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc. |
d6fd318f | 4 | |
6c2e12f4 KH |
5 | ;; This file is part of GNU Emacs. |
6 | ||
7 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
8 | ;; it under the terms of the GNU General Public License as published by | |
9 | ;; the Free Software Foundation; either version 2, or (at your option) | |
10 | ;; any later version. | |
11 | ||
12 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
13 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | ;; GNU General Public License for more details. | |
16 | ||
17 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
18 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
19 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | ;; Boston, MA 02111-1307, USA. | |
6c2e12f4 | 21 | |
03fc1246 MK |
22 | ;; Code |
23 | ||
9b70a748 | 24 | (provide 'viper-mous) |
6c2e12f4 | 25 | |
03fc1246 MK |
26 | ;; compiler pacifier |
27 | (defvar double-click-time) | |
28 | (defvar mouse-track-multi-click-time) | |
8626cfa2 MK |
29 | (defvar viper-search-start-marker) |
30 | (defvar viper-local-search-start-marker) | |
31 | (defvar viper-search-history) | |
32 | (defvar viper-s-string) | |
33 | (defvar viper-re-search) | |
9b70a748 | 34 | |
726e270f MK |
35 | ;; loading happens only in non-interactive compilation |
36 | ;; in order to spare non-viperized emacs from being viperized | |
37 | (if noninteractive | |
38 | (eval-when-compile | |
39 | (let ((load-path (cons (expand-file-name ".") load-path))) | |
40 | (or (featurep 'viper-util) | |
41 | (load "viper-util.el" nil nil 'nosuffix)) | |
42 | (or (featurep 'viper-cmd) | |
43 | (load "viper-cmd.el" nil nil 'nosuffix)) | |
44 | ))) | |
9b70a748 MK |
45 | ;; end pacifier |
46 | ||
47 | (require 'viper-util) | |
48 | ||
03fc1246 | 49 | |
1e70790f MK |
50 | (defgroup viper-mouse nil |
51 | "Support for Viper special mouse-bound commands" | |
8626cfa2 | 52 | :prefix "viper-" |
1e70790f MK |
53 | :group 'viper) |
54 | ||
6c2e12f4 KH |
55 | \f |
56 | ;;; Variables | |
57 | ||
58 | ;; Variable used for catching the switch-frame event. | |
59 | ;; If non-nil, indicates that previous-frame should be the selected | |
3af0304a | 60 | ;; one. Used by viper-mouse-click-get-word. Not a user option. |
8626cfa2 | 61 | (defvar viper-frame-of-focus nil) |
6c2e12f4 KH |
62 | |
63 | ;; Frame that was selected before the switch-frame event. | |
8626cfa2 | 64 | (defconst viper-current-frame-saved (selected-frame)) |
6c2e12f4 | 65 | |
8626cfa2 | 66 | (defcustom viper-surrounding-word-function 'viper-surrounding-word |
6c2e12f4 KH |
67 | "*Function that determines what constitutes a word for clicking events. |
68 | Takes two parameters: a COUNT, indicating how many words to return, | |
69 | and CLICK-COUNT, telling whether this is the first click, a double-click, | |
1e70790f | 70 | or a tripple-click." |
3af0304a | 71 | :type 'symbol |
1e70790f | 72 | :group 'viper-mouse) |
6c2e12f4 KH |
73 | |
74 | ;; time interval in millisecond within which successive clicks are | |
75 | ;; considered related | |
8626cfa2 MK |
76 | (defcustom viper-multiclick-timeout (if (viper-window-display-p) |
77 | (if viper-xemacs-p | |
1e70790f MK |
78 | mouse-track-multi-click-time |
79 | double-click-time) | |
80 | 500) | |
81 | "*Time interval in millisecond within which successive mouse clicks are | |
82 | considered related." | |
83 | :type 'integer | |
84 | :group 'viper-mouse) | |
6c2e12f4 KH |
85 | |
86 | ;; current event click count; XEmacs only | |
8626cfa2 | 87 | (defvar viper-current-click-count 0) |
6c2e12f4 | 88 | ;; time stamp of the last click event; XEmacs only |
8626cfa2 | 89 | (defvar viper-last-click-event-timestamp 0) |
6c2e12f4 KH |
90 | |
91 | ;; Local variable used to toggle wraparound search on click. | |
8626cfa2 | 92 | (viper-deflocalvar viper-mouse-click-search-noerror t) |
6c2e12f4 KH |
93 | |
94 | ;; Local variable used to delimit search after wraparound. | |
8626cfa2 | 95 | (viper-deflocalvar viper-mouse-click-search-limit nil) |
6c2e12f4 KH |
96 | |
97 | ;; remembers prefix argument to pass along to commands invoked by second | |
98 | ;; click. | |
99 | ;; This is needed because in Emacs (not XEmacs), assigning to preix-arg | |
100 | ;; causes Emacs to count the second click as if it was a single click | |
8626cfa2 MK |
101 | (defvar viper-global-prefix-argument nil) |
102 | ||
103 | ||
104 | ;; same keys, but parsed | |
105 | (defvar viper-mouse-up-search-key-parsed nil) | |
106 | (defvar viper-mouse-down-search-key-parsed nil) | |
107 | (defvar viper-mouse-up-insert-key-parsed nil) | |
108 | (defvar viper-mouse-down-insert-key-parsed nil) | |
109 | ||
6c2e12f4 KH |
110 | |
111 | ||
112 | \f | |
113 | ;;; Code | |
114 | ||
8626cfa2 MK |
115 | (defsubst viper-multiclick-p () |
116 | (not (viper-sit-for-short viper-multiclick-timeout t))) | |
95d70c42 MK |
117 | |
118 | ;; Returns window where click occurs | |
328b4b70 MK |
119 | (defun viper-mouse-click-window (click) |
120 | (let ((win (if viper-xemacs-p | |
121 | (event-window click) | |
122 | (posn-window (event-start click))))) | |
123 | (if (window-live-p win) | |
124 | win | |
125 | (error "Click was not over a live window")))) | |
95d70c42 MK |
126 | |
127 | ;; Returns window where click occurs | |
8626cfa2 MK |
128 | (defsubst viper-mouse-click-frame (click) |
129 | (window-frame (viper-mouse-click-window click))) | |
95d70c42 MK |
130 | |
131 | ;; Returns the buffer of the window where click occurs | |
8626cfa2 MK |
132 | (defsubst viper-mouse-click-window-buffer (click) |
133 | (window-buffer (viper-mouse-click-window click))) | |
95d70c42 MK |
134 | |
135 | ;; Returns the name of the buffer in the window where click occurs | |
8626cfa2 MK |
136 | (defsubst viper-mouse-click-window-buffer-name (click) |
137 | (buffer-name (viper-mouse-click-window-buffer click))) | |
95d70c42 MK |
138 | |
139 | ;; Returns position of a click | |
8626cfa2 MK |
140 | (defsubst viper-mouse-click-posn (click) |
141 | (if viper-xemacs-p | |
95d70c42 MK |
142 | (event-point click) |
143 | (posn-point (event-start click)))) | |
6c2e12f4 | 144 | |
95d70c42 | 145 | |
8626cfa2 | 146 | (defun viper-surrounding-word (count click-count) |
6c2e12f4 KH |
147 | "Returns word surrounding point according to a heuristic. |
148 | COUNT indicates how many regions to return. | |
61d0d254 MK |
149 | If CLICK-COUNT is 1, `word' is a word in Vi sense. |
150 | If CLICK-COUNT is 2,then `word' is a Word in Vi sense. | |
6c2e12f4 KH |
151 | If the character clicked on is a non-separator and is non-alphanumeric but |
152 | is adjacent to an alphanumeric symbol, then it is considered alphanumeric | |
3af0304a | 153 | for the purpose of this command. If this character has a matching |
6c2e12f4 KH |
154 | character, such as `\(' is a match for `\)', then the matching character is |
155 | also considered alphanumeric. | |
61d0d254 MK |
156 | For convenience, in Lisp modes, `-' is considered alphanumeric. |
157 | ||
158 | If CLICK-COUNT is 3 or more, returns the line clicked on with leading and | |
3af0304a | 159 | trailing space and tabs removed. In that case, the first argument, COUNT, |
61d0d254 | 160 | is ignored." |
22b63058 | 161 | (let ((modifiers "_") |
c9dd7f74 | 162 | beg skip-flag result |
a595547c | 163 | word-beg) |
c9dd7f74 | 164 | (if (> click-count 2) |
61d0d254 MK |
165 | (save-excursion |
166 | (beginning-of-line) | |
8626cfa2 | 167 | (viper-skip-all-separators-forward 'within-line) |
61d0d254 MK |
168 | (setq beg (point)) |
169 | (end-of-line) | |
c9dd7f74 | 170 | (setq result (buffer-substring beg (point)))) |
61d0d254 | 171 | |
8626cfa2 MK |
172 | (if (and (not (viper-looking-at-alphasep)) |
173 | (or (save-excursion (viper-backward-char-carefully) | |
174 | (viper-looking-at-alpha)) | |
175 | (save-excursion (viper-forward-char-carefully) | |
176 | (viper-looking-at-alpha)))) | |
a595547c | 177 | (setq modifiers |
22b63058 KH |
178 | (concat modifiers |
179 | (cond ((looking-at "\\\\") "\\\\") | |
180 | ((looking-at "-") "C-C-") | |
181 | ((looking-at "[][]") "][") | |
182 | ((looking-at "[()]") ")(") | |
183 | ((looking-at "[{}]") "{}") | |
184 | ((looking-at "[<>]") "<>") | |
185 | ((looking-at "[`']") "`'") | |
186 | ((looking-at "\\^") "\\^") | |
187 | ((viper-looking-at-separator) "") | |
188 | (t (char-to-string (following-char)))) | |
189 | ) | |
a595547c | 190 | )) |
61d0d254 | 191 | |
a595547c | 192 | ;; Add `-' to alphanum, if it wasn't added and if we are in Lisp |
61d0d254 MK |
193 | (or (looking-at "-") |
194 | (not (string-match "lisp" (symbol-name major-mode))) | |
a595547c | 195 | (setq modifiers (concat modifiers "C-C-"))) |
61d0d254 | 196 | |
61d0d254 MK |
197 | |
198 | (save-excursion | |
8626cfa2 MK |
199 | (cond ((> click-count 1) (viper-skip-nonseparators 'backward)) |
200 | ((viper-looking-at-alpha modifiers) | |
201 | (viper-skip-alpha-backward modifiers)) | |
202 | ((not (viper-looking-at-alphasep modifiers)) | |
203 | (viper-skip-nonalphasep-backward)) | |
a595547c | 204 | (t (if (> click-count 1) |
8626cfa2 MK |
205 | (viper-skip-nonseparators 'backward) |
206 | (viper-skip-alpha-backward modifiers)))) | |
a595547c | 207 | |
61d0d254 MK |
208 | (setq word-beg (point)) |
209 | ||
a595547c | 210 | (setq skip-flag nil) ; don't move 1 char forw the first time |
61d0d254 | 211 | (while (> count 0) |
8626cfa2 | 212 | (if skip-flag (viper-forward-char-carefully 1)) |
a595547c MK |
213 | (setq skip-flag t) ; now always move 1 char forward |
214 | (if (> click-count 1) | |
8626cfa2 MK |
215 | (viper-skip-nonseparators 'forward) |
216 | (viper-skip-alpha-forward modifiers)) | |
61d0d254 | 217 | (setq count (1- count))) |
a595547c | 218 | |
c9dd7f74 MK |
219 | (setq result (buffer-substring word-beg (point)))) |
220 | ) ; if | |
a595547c | 221 | ;; XEmacs doesn't have set-text-properties, but there buffer-substring |
c9dd7f74 | 222 | ;; doesn't return properties together with the string, so it's not needed. |
8626cfa2 | 223 | (if viper-emacs-p |
c9dd7f74 MK |
224 | (set-text-properties 0 (length result) nil result)) |
225 | result | |
226 | )) | |
6c2e12f4 KH |
227 | |
228 | ||
8626cfa2 | 229 | (defun viper-mouse-click-get-word (click count click-count) |
6c2e12f4 | 230 | "Returns word surrounding the position of a mouse click. |
3af0304a | 231 | Click may be in another window. Current window and buffer isn't changed. |
61d0d254 | 232 | On single or double click, returns the word as determined by |
8626cfa2 | 233 | `viper-surrounding-word-function'." |
6c2e12f4 KH |
234 | |
235 | (let ((click-word "") | |
8626cfa2 MK |
236 | (click-pos (viper-mouse-click-posn click)) |
237 | (click-buf (viper-mouse-click-window-buffer click))) | |
bbe6126c MK |
238 | (or (natnump count) (setq count 1)) |
239 | (or (natnump click-count) (setq click-count 1)) | |
6c2e12f4 KH |
240 | |
241 | (save-excursion | |
242 | (save-window-excursion | |
243 | (if click-pos | |
244 | (progn | |
245 | (set-buffer click-buf) | |
246 | ||
247 | (goto-char click-pos) | |
248 | (setq click-word | |
8626cfa2 | 249 | (funcall viper-surrounding-word-function count click-count))) |
6c2e12f4 KH |
250 | (error "Click must be over a window.")) |
251 | click-word)))) | |
252 | ||
6c2e12f4 | 253 | |
8626cfa2 | 254 | (defun viper-mouse-click-insert-word (click arg) |
6c2e12f4 KH |
255 | "Insert word clicked or double-clicked on. |
256 | With prefix argument, N, insert that many words. | |
257 | This command must be bound to a mouse click. | |
258 | The double-click action of the same mouse button must not be bound | |
259 | \(or it must be bound to the same function\). | |
8626cfa2 | 260 | See `viper-surrounding-word' for the definition of a word in this case." |
6c2e12f4 | 261 | (interactive "e\nP") |
8626cfa2 MK |
262 | (if viper-frame-of-focus ;; to handle clicks in another frame |
263 | (select-frame viper-frame-of-focus)) | |
3af0304a MK |
264 | (if (save-excursion |
265 | (or (not (eq (key-binding viper-mouse-down-insert-key-parsed) | |
266 | 'viper-mouse-catch-frame-switch)) | |
267 | (not (eq (key-binding viper-mouse-up-insert-key-parsed) | |
268 | 'viper-mouse-click-insert-word)) | |
269 | (and viper-xemacs-p (not (event-over-text-area-p click))))) | |
96dffd25 MK |
270 | () ; do nothing, if binding isn't right or not over text |
271 | ;; turn arg into a number | |
272 | (cond ((integerp arg) nil) | |
273 | ;; prefix arg is a list when one hits C-u then command | |
274 | ((and (listp arg) (integerp (car arg))) | |
275 | (setq arg (car arg))) | |
276 | (t (setq arg 1))) | |
277 | ||
278 | (if (not (eq (key-binding viper-mouse-down-insert-key-parsed) | |
279 | 'viper-mouse-catch-frame-switch)) | |
280 | () ; do nothing | |
281 | (let (click-count interrupting-event) | |
282 | (if (and | |
283 | (viper-multiclick-p) | |
284 | ;; This trick checks if there is a pending mouse event if so, we | |
285 | ;; use this latter event and discard the current mouse click If | |
286 | ;; the next pending event is not a mouse event, we execute the | |
287 | ;; current mouse event | |
288 | (progn | |
289 | (setq interrupting-event (viper-read-event)) | |
290 | (viper-mouse-event-p last-input-event))) | |
291 | (progn ; interrupted wait | |
292 | (setq viper-global-prefix-argument arg) | |
293 | ;; count this click for XEmacs | |
294 | (viper-event-click-count click)) | |
295 | ;; uninterrupted wait or the interrupting event wasn't a mouse event | |
296 | (setq click-count (viper-event-click-count click)) | |
297 | (if (> click-count 1) | |
298 | (setq arg viper-global-prefix-argument | |
299 | viper-global-prefix-argument nil)) | |
300 | (insert (viper-mouse-click-get-word click arg click-count)) | |
301 | (if (and interrupting-event | |
302 | (eventp interrupting-event) | |
303 | (not (viper-mouse-event-p interrupting-event))) | |
304 | (viper-set-unread-command-events interrupting-event)) | |
305 | ))))) | |
6c2e12f4 | 306 | |
3af0304a | 307 | ;; Arg is an event. Accepts symbols and numbers, too |
8626cfa2 | 308 | (defun viper-mouse-event-p (event) |
6c2e12f4 KH |
309 | (if (eventp event) |
310 | (string-match "\\(mouse-\\|frame\\|screen\\|track\\)" | |
8626cfa2 | 311 | (prin1-to-string (viper-event-key event))))) |
6c2e12f4 | 312 | |
3af0304a | 313 | ;; XEmacs has no double-click events. So, we must simulate. |
6c2e12f4 | 314 | ;; So, we have to simulate event-click-count. |
8626cfa2 MK |
315 | (defun viper-event-click-count (click) |
316 | (if viper-xemacs-p | |
3af0304a | 317 | (viper-event-click-count-xemacs click) |
6c2e12f4 KH |
318 | (event-click-count click))) |
319 | ||
3af0304a MK |
320 | ;; kind of semaphore for updating viper-current-click-count |
321 | (defvar viper-counting-clicks-p nil) | |
322 | (defun viper-event-click-count-xemacs (click) | |
323 | (let ((time-delta (- (event-timestamp click) | |
324 | viper-last-click-event-timestamp)) | |
325 | inhibit-quit) | |
326 | (while viper-counting-clicks-p | |
327 | (ignore)) | |
328 | (setq viper-counting-clicks-p t) | |
329 | (if (> time-delta viper-multiclick-timeout) | |
330 | (setq viper-current-click-count 0)) | |
331 | (discard-input) | |
332 | (setq viper-current-click-count (1+ viper-current-click-count) | |
333 | viper-last-click-event-timestamp (event-timestamp click)) | |
334 | (setq viper-counting-clicks-p nil) | |
335 | (if (viper-sit-for-short viper-multiclick-timeout t) | |
336 | viper-current-click-count | |
337 | 0) | |
338 | )) | |
339 | ||
6c2e12f4 | 340 | |
8626cfa2 | 341 | (defun viper-mouse-click-search-word (click arg) |
3af0304a | 342 | "Find the word clicked or double-clicked on. Word may be in another window. |
6c2e12f4 | 343 | With prefix argument, N, search for N-th occurrence. |
3af0304a | 344 | This command must be bound to a mouse click. The double-click action of the |
6c2e12f4 | 345 | same button must not be bound \(or it must be bound to the same function\). |
8626cfa2 | 346 | See `viper-surrounding-word' for the details on what constitutes a word for |
6c2e12f4 KH |
347 | this command." |
348 | (interactive "e\nP") | |
8626cfa2 MK |
349 | (if viper-frame-of-focus ;; to handle clicks in another frame |
350 | (select-frame viper-frame-of-focus)) | |
3af0304a MK |
351 | (if (save-excursion |
352 | (or (not (eq (key-binding viper-mouse-down-search-key-parsed) | |
353 | 'viper-mouse-catch-frame-switch)) | |
354 | (not (eq (key-binding viper-mouse-up-search-key-parsed) | |
355 | 'viper-mouse-click-search-word)) | |
356 | (and viper-xemacs-p (not (event-over-text-area-p click))))) | |
96dffd25 | 357 | () ; do nothing, if binding isn't right or not over text |
8626cfa2 MK |
358 | (let ((previous-search-string viper-s-string) |
359 | click-word click-count) | |
6c2e12f4 | 360 | |
8626cfa2 MK |
361 | (if (and |
362 | (viper-multiclick-p) | |
363 | ;; This trick checks if there is a pending mouse event if so, we use | |
364 | ;; this latter event and discard the current mouse click If the next | |
365 | ;; pending event is not a mouse event, we execute the current mouse | |
366 | ;; event | |
367 | (progn | |
368 | (viper-read-event) | |
369 | (viper-mouse-event-p last-input-event))) | |
370 | (progn ; interrupted wait | |
3af0304a MK |
371 | (setq viper-global-prefix-argument (or viper-global-prefix-argument |
372 | arg) | |
373 | ;; remember command that was before the multiclick | |
374 | this-command last-command) | |
8626cfa2 MK |
375 | ;; make sure we counted this event---needed for XEmacs only |
376 | (viper-event-click-count click)) | |
377 | ;; uninterrupted wait | |
378 | (setq click-count (viper-event-click-count click)) | |
379 | (setq click-word (viper-mouse-click-get-word click nil click-count)) | |
380 | ||
381 | (if (> click-count 1) | |
382 | (setq arg viper-global-prefix-argument | |
383 | viper-global-prefix-argument nil)) | |
384 | (setq arg (or arg 1)) | |
385 | ||
386 | (viper-deactivate-mark) | |
387 | (if (or (not (string= click-word viper-s-string)) | |
388 | (not (markerp viper-search-start-marker)) | |
389 | (not (equal (marker-buffer viper-search-start-marker) | |
390 | (current-buffer))) | |
391 | (not (eq last-command 'viper-mouse-click-search-word))) | |
6c2e12f4 | 392 | (progn |
8626cfa2 MK |
393 | (setq viper-search-start-marker (point-marker) |
394 | viper-local-search-start-marker viper-search-start-marker | |
395 | viper-mouse-click-search-noerror t | |
396 | viper-mouse-click-search-limit nil) | |
397 | ||
398 | ;; make search string known to Viper | |
399 | (setq viper-s-string (if viper-re-search | |
400 | (regexp-quote click-word) | |
401 | click-word)) | |
402 | (if (not (string= viper-s-string (car viper-search-history))) | |
403 | (setq viper-search-history | |
404 | (cons viper-s-string viper-search-history))) | |
405 | )) | |
406 | ||
407 | (push-mark nil t) | |
408 | (while (> arg 0) | |
409 | (viper-forward-word 1) | |
410 | (condition-case nil | |
411 | (progn | |
412 | (if (not (search-forward | |
413 | click-word viper-mouse-click-search-limit | |
414 | viper-mouse-click-search-noerror)) | |
415 | (progn | |
416 | (setq viper-mouse-click-search-noerror nil) | |
417 | (setq viper-mouse-click-search-limit | |
418 | (save-excursion | |
419 | (if (and | |
420 | (markerp viper-local-search-start-marker) | |
421 | (marker-buffer viper-local-search-start-marker)) | |
422 | (goto-char viper-local-search-start-marker)) | |
423 | (viper-line-pos 'end))) | |
424 | ||
425 | (goto-char (point-min)) | |
426 | (search-forward click-word | |
427 | viper-mouse-click-search-limit nil))) | |
428 | (goto-char (match-beginning 0)) | |
429 | (message "Searching for: %s" viper-s-string) | |
430 | (if (<= arg 1) ; found the right occurrence of the pattern | |
431 | (progn | |
432 | (viper-adjust-window) | |
433 | (viper-flash-search-pattern))) | |
434 | ) | |
435 | (error (beep 1) | |
436 | (if (or (not (string= click-word previous-search-string)) | |
437 | (not (eq last-command 'viper-mouse-click-search-word))) | |
438 | (message "`%s': String not found in %s" | |
439 | viper-s-string (buffer-name (current-buffer))) | |
440 | (message | |
3af0304a | 441 | "`%s': Last occurrence in %s. Back to beginning of search" |
8626cfa2 MK |
442 | click-word (buffer-name (current-buffer))) |
443 | (setq arg 1) ;; to terminate the loop | |
444 | (sit-for 2)) | |
445 | (setq viper-mouse-click-search-noerror t) | |
446 | (setq viper-mouse-click-search-limit nil) | |
447 | (if (and (markerp viper-local-search-start-marker) | |
448 | (marker-buffer viper-local-search-start-marker)) | |
449 | (goto-char viper-local-search-start-marker)))) | |
450 | (setq arg (1- arg))) | |
451 | )))) | |
6c2e12f4 | 452 | |
8626cfa2 | 453 | (defun viper-mouse-catch-frame-switch (event arg) |
6c2e12f4 | 454 | "Catch the event of switching frame. |
3af0304a | 455 | Usually is bound to a `down-mouse' event to work properly. See sample |
d5e52f99 | 456 | bindings in the Viper manual." |
6c2e12f4 | 457 | (interactive "e\nP") |
8626cfa2 MK |
458 | (setq viper-frame-of-focus nil) |
459 | ;; pass prefix arg along to viper-mouse-click-search/insert-word | |
6c2e12f4 KH |
460 | (setq prefix-arg arg) |
461 | (if (eq last-command 'handle-switch-frame) | |
8626cfa2 MK |
462 | (setq viper-frame-of-focus viper-current-frame-saved)) |
463 | ;; make Emacs forget that it executed viper-mouse-catch-frame-switch | |
6c2e12f4 KH |
464 | (setq this-command last-command)) |
465 | ||
3af0304a | 466 | ;; Called just before switching frames. Saves the old selected frame. |
6c2e12f4 KH |
467 | ;; Sets last-command to handle-switch-frame (this is done automatically in |
468 | ;; Emacs. | |
469 | ;; The semantics of switching frames is different in Emacs and XEmacs. | |
470 | ;; In Emacs, if you select-frame A while mouse is over frame B and then | |
471 | ;; start typing, input goes to frame B, which becomes selected. | |
3af0304a | 472 | ;; In XEmacs, input will go to frame A. This may be a bug in one of the |
6c2e12f4 KH |
473 | ;; Emacsen, but also may be a design decision. |
474 | ;; Also, in Emacs sending input to frame B generates handle-switch-frame | |
475 | ;; event, while in XEmacs it doesn't. | |
476 | ;; All this accounts for the difference in the behavior of | |
8626cfa2 | 477 | ;; viper-mouse-click-* commands when you click in a frame other than the one |
3af0304a | 478 | ;; that was the last to receive input. In Emacs, focus will be in frame A |
8626cfa2 | 479 | ;; until you do something other than viper-mouse-click-* command. |
6c2e12f4 KH |
480 | ;; In XEmacs, you have to manually select frame B (with the mouse click) in |
481 | ;; order to shift focus to frame B. | |
8626cfa2 | 482 | (defsubst viper-remember-current-frame (frame) |
546fe085 | 483 | (setq last-command 'handle-switch-frame |
8626cfa2 MK |
484 | viper-current-frame-saved (selected-frame))) |
485 | ||
486 | ||
487 | ;; The key is of the form (MODIFIER ... BUTTON-NUMBER) | |
488 | ;; Converts into a valid mouse button spec for the appropriate version of | |
3af0304a | 489 | ;; Emacs. EVENT-TYPE is either `up' or `down'. Up returns button-up key; down |
8626cfa2 MK |
490 | ;; returns button-down key. |
491 | (defun viper-parse-mouse-key (key-var event-type) | |
492 | (let ((key (eval key-var)) | |
493 | button-spec meta-spec shift-spec control-spec key-spec) | |
494 | (if (null key) | |
495 | ;; just return nil | |
496 | () | |
497 | (setq button-spec | |
498 | (cond ((memq 1 key) | |
499 | (if viper-emacs-p | |
500 | (if (eq 'up event-type) | |
501 | "mouse-1" "down-mouse-1") | |
502 | (if (eq 'up event-type) | |
503 | 'button1up 'button1))) | |
504 | ((memq 2 key) | |
505 | (if viper-emacs-p | |
506 | (if (eq 'up event-type) | |
507 | "mouse-2" "down-mouse-2") | |
508 | (if (eq 'up event-type) | |
509 | 'button2up 'button2))) | |
510 | ((memq 3 key) | |
511 | (if viper-emacs-p | |
512 | (if (eq 'up event-type) | |
513 | "mouse-3" "down-mouse-3") | |
514 | (if (eq 'up event-type) | |
515 | 'button3up 'button3))) | |
516 | (t (error | |
517 | "%S: invalid button number, %S" key-var key))) | |
518 | meta-spec | |
519 | (if (memq 'meta key) | |
520 | (if viper-emacs-p "M-" 'meta) | |
521 | (if viper-emacs-p "" nil)) | |
522 | shift-spec | |
523 | (if (memq 'shift key) | |
524 | (if viper-emacs-p "S-" 'shift) | |
525 | (if viper-emacs-p "" nil)) | |
526 | control-spec | |
527 | (if (memq 'control key) | |
528 | (if viper-emacs-p "C-" 'control) | |
529 | (if viper-emacs-p "" nil))) | |
530 | ||
531 | (setq key-spec (if viper-emacs-p | |
532 | (vector | |
533 | (intern | |
534 | (concat | |
535 | control-spec meta-spec shift-spec button-spec))) | |
536 | (vector | |
537 | (delq | |
538 | nil | |
539 | (list | |
540 | control-spec meta-spec shift-spec button-spec))))) | |
541 | ))) | |
542 | ||
543 | (defun viper-unbind-mouse-search-key () | |
544 | (if viper-mouse-up-search-key-parsed | |
545 | (global-unset-key viper-mouse-up-search-key-parsed)) | |
546 | (if viper-mouse-down-search-key-parsed | |
547 | (global-unset-key viper-mouse-down-search-key-parsed)) | |
548 | (setq viper-mouse-up-search-key-parsed nil | |
549 | viper-mouse-down-search-key-parsed nil)) | |
550 | ||
551 | (defun viper-unbind-mouse-insert-key () | |
552 | (if viper-mouse-up-insert-key-parsed | |
553 | (global-unset-key viper-mouse-up-insert-key-parsed)) | |
554 | (if viper-mouse-down-insert-key-parsed | |
555 | (global-unset-key viper-mouse-down-insert-key-parsed)) | |
556 | (setq viper-mouse-up-insert-key-parsed nil | |
557 | viper-mouse-down-insert-key-parsed nil)) | |
558 | ||
559 | ;; If FORCE, bind even if this mouse action is already bound to something else | |
560 | (defun viper-bind-mouse-search-key (&optional force) | |
561 | (setq viper-mouse-up-search-key-parsed | |
562 | (viper-parse-mouse-key 'viper-mouse-search-key 'up) | |
563 | viper-mouse-down-search-key-parsed | |
564 | (viper-parse-mouse-key 'viper-mouse-search-key 'down)) | |
565 | (cond ((or (null viper-mouse-up-search-key-parsed) | |
566 | (null viper-mouse-down-search-key-parsed)) | |
567 | nil) ; just quit | |
568 | ((and (null force) | |
569 | (key-binding viper-mouse-up-search-key-parsed) | |
570 | (not (eq (key-binding viper-mouse-up-search-key-parsed) | |
571 | 'viper-mouse-click-search-word))) | |
572 | (message | |
3af0304a | 573 | "%S already bound to a mouse event. Viper mouse-search feature disabled" |
8626cfa2 MK |
574 | viper-mouse-up-search-key-parsed)) |
575 | ((and (null force) | |
576 | (key-binding viper-mouse-down-search-key-parsed) | |
577 | (not (eq (key-binding viper-mouse-down-search-key-parsed) | |
578 | 'viper-mouse-catch-frame-switch))) | |
579 | (message | |
3af0304a | 580 | "%S already bound to a mouse event. Viper mouse-search feature disabled" |
8626cfa2 MK |
581 | viper-mouse-down-search-key-parsed)) |
582 | (t | |
583 | (global-set-key viper-mouse-up-search-key-parsed | |
584 | 'viper-mouse-click-search-word) | |
585 | (global-set-key viper-mouse-down-search-key-parsed | |
586 | 'viper-mouse-catch-frame-switch)))) | |
587 | ||
588 | ;; If FORCE, bind even if this mouse action is already bound to something else | |
589 | (defun viper-bind-mouse-insert-key (&optional force) | |
590 | (setq viper-mouse-up-insert-key-parsed | |
591 | (viper-parse-mouse-key 'viper-mouse-insert-key 'up) | |
592 | viper-mouse-down-insert-key-parsed | |
593 | (viper-parse-mouse-key 'viper-mouse-insert-key 'down)) | |
594 | (cond ((or (null viper-mouse-up-insert-key-parsed) | |
595 | (null viper-mouse-down-insert-key-parsed)) | |
596 | nil) ; just quit | |
597 | ((and (null force) | |
598 | (key-binding viper-mouse-up-insert-key-parsed) | |
599 | (not (eq (key-binding viper-mouse-up-insert-key-parsed) | |
600 | 'viper-mouse-click-insert-word))) | |
601 | (message | |
3af0304a | 602 | "%S already bound to a mouse event. Viper mouse-insert feature disabled" |
8626cfa2 MK |
603 | viper-mouse-up-insert-key-parsed)) |
604 | ((and (null force) | |
605 | (key-binding viper-mouse-down-insert-key-parsed) | |
606 | (not (eq (key-binding viper-mouse-down-insert-key-parsed) | |
607 | 'viper-mouse-catch-frame-switch))) | |
608 | (message | |
3af0304a | 609 | "%S already bound to a mouse event. Viper mouse-insert feature disabled" |
8626cfa2 MK |
610 | viper-mouse-down-insert-key-parsed)) |
611 | (t | |
612 | (global-set-key viper-mouse-up-insert-key-parsed | |
613 | 'viper-mouse-click-insert-word) | |
614 | (global-set-key viper-mouse-down-insert-key-parsed | |
615 | 'viper-mouse-catch-frame-switch)))) | |
616 | ||
617 | (defun viper-reset-mouse-search-key (symb val) | |
618 | (viper-unbind-mouse-search-key) | |
619 | (set symb val) | |
620 | (viper-bind-mouse-search-key 'force)) | |
621 | ||
622 | (defun viper-reset-mouse-insert-key (symb val) | |
623 | (viper-unbind-mouse-insert-key) | |
624 | (set symb val) | |
625 | (viper-bind-mouse-insert-key 'force)) | |
626 | ||
627 | ||
628 | (defcustom viper-mouse-search-key '(meta shift 1) | |
629 | "*Key used to click-search in Viper. | |
a27f97ee RS |
630 | This must be a list that specifies the mouse button and modifiers. |
631 | The supported modifiers are `meta', `shift', and `control'. | |
632 | For instance, `(meta shift 1)' means that holding the meta and shift | |
633 | keys down and clicking on a word with mouse button 1 | |
634 | will search for that word in the buffer that was current before the click. | |
635 | This buffer may be different from the one where the click occurred." | |
f0f90cfd RS |
636 | :type '(list (set :inline t :tag "Modifiers" :format "%t: %v" |
637 | (const :format "%v " meta) | |
638 | (const :format "%v " shift) | |
639 | (const control)) | |
640 | (integer :tag "Button")) | |
8626cfa2 MK |
641 | :set 'viper-reset-mouse-search-key |
642 | :group 'viper-mouse) | |
643 | ||
644 | (defcustom viper-mouse-insert-key '(meta shift 2) | |
645 | "*Key used to click-insert in Viper. | |
a27f97ee RS |
646 | Must be a list that specifies the mouse button and modifiers. |
647 | The supported modifiers are `meta', `shift', and `control'. | |
648 | For instance, `(meta shift 2)' means that holding the meta and shift keys | |
649 | down, and clicking on a word with mouse button 2, will insert that word | |
650 | at the cursor in the buffer that was current just before the click. | |
651 | This buffer may be different from the one where the click occurred." | |
f0f90cfd RS |
652 | :type '(list (set :inline t :tag "Modifiers" :format "%t: %v" |
653 | (const :format "%v " meta) | |
654 | (const :format "%v " shift) | |
655 | (const control)) | |
656 | (integer :tag "Button")) | |
8626cfa2 MK |
657 | :set 'viper-reset-mouse-insert-key |
658 | :group 'viper-mouse) | |
659 | ||
6c2e12f4 KH |
660 | |
661 | ||
1e70790f | 662 | ;;; Local Variables: |
8626cfa2 | 663 | ;;; eval: (put 'viper-deflocalvar 'lisp-indent-hook 'defun) |
1e70790f MK |
664 | ;;; End: |
665 | ||
6c2e12f4 | 666 | |
6c2e12f4 | 667 | ;;; viper-mous.el ends here |