lyskom-buttons.el 41.4 KB
Newer Older
David Byers's avatar
David Byers committed
1
;;;;; -*-coding: iso-8859-1;-*-
2
;;;;;
3
;;;; $Id$
4
;;;;; Copyright (C) 1991, 1996  Lysator Academic Computer Association.
5
6
7
8
9
;;;;;
;;;;; This file is part of the LysKOM server.
;;;;; 
;;;;; LysKOM is free software; you can redistribute it and/or modify it
;;;;; under the terms of the GNU General Public License as published by 
10
;;;;; the Free Software Foundation; either version 2, or (at your option) 
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
;;;;; any later version.
;;;;; 
;;;;; LysKOM is distributed in the hope that it will be useful, but WITHOUT
;;;;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
;;;;; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
;;;;; for more details.
;;;;; 
;;;;; You should have received a copy of the GNU General Public License
;;;;; along with LysKOM; see the file COPYING.  If not, write to
;;;;; Lysator, c/o ISY, Linkoping University, S-581 83 Linkoping, SWEDEN,
;;;;; or the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, 
;;;;; MA 02139, USA.
;;;;;
;;;;; Please mail bug reports to bug-lyskom@lysator.liu.se. 
;;;;;
;;;; ================================================================
;;;; ================================================================
;;;;
;;;; File: lyskom-buttons.el
;;;; Author: David Byers
;;;;
;;;;

34

35
36
37
38
39
40
41
42
43
44
45
46
47
(setq lyskom-clientversion-long 
      (concat lyskom-clientversion-long
	      "$Id$\n"))

(lyskom-external-function glyph-property)
(lyskom-external-function widget-at)
(lyskom-external-function widget-get)
(lyskom-external-function w3-widget-button-click)
(lyskom-external-function w3-popup-menu)
(lyskom-external-function Info-goto-node)
(lyskom-external-function term-char-mode)


David Byers's avatar
X    
David Byers committed
48
49
50
(defun lyskom-menu-selection nil
  "Variable used to work around the handling of menus in XEmacs.")

51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
(defun lyskom-add-button-action (type text func)
  "Add a new action to the popup menu for a class of objects.
Arguments are TYPE, the type of object to adjust, TEXT the menu text
for the action and FUNC, the function to call when the action is
selected. By default TYPE may be any one of text, conf, pers or url 
although users can add other types.

FUNC must be a function with three arguments, BUFFER, ARGUMENT and
TEXT.  BUFFER is the LysKOM buffer that the command should use, TEXT
is the text of the selected button and ARGUMENT is the data argument
associated with the object. For button type text it is a text
number. For types conf and pers it is the conference number for the
object. For URLs it is the text of the URL (a string) or NIL. For
other (user-defined) types, it is a string.

For more information on button types and arguments, see the
documentation for the variable lyskom-text-buttons."
  (nconc (nth 3 (assq type lyskom-button-actions))
	 (list (cons text func))))

(defun lyskom-set-default-button-action (type func)
  "Set the default action for buttons of the type TYPE to FUNC. 

FUNC must be a valid button action function. For more information
on such functions see the documentation for lyskom-add-button-action."
  (let ((el (assq type lyskom-button-actions)))
    (setcdr (nthcdr 1 el)
	    (cons func (nthcdr 3 el)))))
      


82
(defun kom-previous-link (num)
83
  "Move the cursor to the previous active area in the LysKOM buffer."
84
  (interactive "p")
85
  (lyskom-prev-area num 'lyskom-button-text))
86
87

(defun kom-next-link (num)
88
  "Move the cursor to the next active area in the LysKOM buffer."
89
  (interactive "p")
90
  (lyskom-next-area num 'lyskom-button-text))
91
92


David Byers's avatar
X    
David Byers committed
93
(defun kom-button-press ()
94
  "Simulate a mouse button press at point."
95
  (interactive)
David Byers's avatar
X    
David Byers committed
96
  (lyskom-button-press (point)))
97

98
99
100
101
102
(defun kom-menu-button-press ()
  "Simulate a menu mouse button press at point."
  (interactive)
  (lyskom-button-menu (point) 'key))

David Byers's avatar
David Byers committed
103
104
105
106
(defun kom-button-click (event &optional do-default)
  "Execute the default action of the active area under the mouse.
If optional argument do-default is non-nil, call the default binding of
this-command-keys."
107
  (interactive "@e")
David Byers's avatar
David Byers committed
108
109
110
111
112
113
  (let* ((pos (event-point event))
         (glyph (event-glyph event))
         (widget (and pos 
                      (or (and glyph (glyph-property glyph 'widget))
                          (widget-at pos))))
         (parent (and widget (widget-get widget ':parent)))
David Byers's avatar
David Byers committed
114
115
116
         (href (or (and widget (widget-get widget ':href))
                   (and parent (widget-get parent ':href))
                   (and widget (widget-get widget 'href))
David Byers's avatar
David Byers committed
117
                   (and parent (widget-get parent 'href)))))
118
119
    (cond (href (require 'w3)
                (w3-widget-button-click event))
David Byers's avatar
David Byers committed
120
121
122
123
124
125
          ((and do-default
                (or (null pos)
                    (null (get-text-property pos 'lyskom-button-type))))
           (let ((fn (lookup-key global-map (this-command-keys))))
             (when (commandp fn)
               (call-interactively fn))))
David Byers's avatar
David Byers committed
126
127
          (t (lyskom-button-press pos)))))

David Byers's avatar
David Byers committed
128
129
130
131
132
133
(defun kom-button-click-or-yank (event)
  "Execute the default action of the active area under the mouse.
If there is no active area, then do something else."
  (interactive "@e")
  (kom-button-click event t))

David Byers's avatar
X    
David Byers committed
134
(defun kom-popup-menu (event)
135
136
  "Pop up a menu of actions to be taken at the active area under the mouse."
  (interactive "@e")
David Byers's avatar
David Byers committed
137
138
139
140
141
142
  (let* ((pos (event-point event))
         (glyph (event-glyph event))
         (widget (and pos 
                      (or (and glyph (glyph-property glyph 'widget))
                          (widget-at pos))))
         (parent (and widget (widget-get widget ':parent)))
David Byers's avatar
David Byers committed
143
144
145
         (href (or (and widget (widget-get widget ':href))
                   (and parent (widget-get parent ':href))
                   (and widget (widget-get widget 'href))
David Byers's avatar
David Byers committed
146
                   (and parent (widget-get parent 'href)))))
147
148
    (cond (href (require 'w3)
                (w3-popup-menu event))
David Byers's avatar
David Byers committed
149
150
151
          ((and pos (get-text-property pos 'lyskom-button-type))
           (lyskom-button-menu pos event))
          (t (lyskom-background-menu pos event)))))
David Kågedal's avatar
David Kågedal committed
152
  
David Kågedal's avatar
David Kågedal committed
153
154
(defun kom-mouse-null (event)
  "Do nothing."
155
  (interactive "@e")
David Kågedal's avatar
David Kågedal committed
156
  ;; This is here to pervent unwanted events when clicking mouse-3
157
  )
David Kågedal's avatar
David Kågedal committed
158

David Byers's avatar
X    
David Byers committed
159
(defun lyskom-make-button-menu (title entries buf arg text)
160
  "Create a menu keymap from a list of button actions."
David Kågedal's avatar
David Kågedal committed
161
162
163
  ;; Use the command as the event for simplicity.  Note that the menu
  ;; function alters the menu, so we copy the entries to prevent it
  ;; from fiddling with lyskom-button-actions.
David Byers's avatar
X    
David Byers committed
164
  (cond ((string-match "XEmacs" (emacs-version))
165
         (cons (encode-coding-string title 'iso-8859-1)
David Byers's avatar
X    
David Byers committed
166
167
               (mapcar (function
                        (lambda (entry)
David Byers's avatar
David Byers committed
168
                          (vector (encode-coding-string
169
                                   (lyskom-get-string (car entry)) 'iso-8859-1)
David Byers's avatar
David Byers committed
170
171
172
173
174
175
                                  (list (cdr entry)
                                        buf
                                        (if (listp arg)
                                            (list 'quote arg)
                                          arg)
                                        text)
David Byers's avatar
X    
David Byers committed
176
177
178
                                  ':active t)))
                       entries)))
        (t (append (list 'keymap title)
David Byers's avatar
David Byers committed
179
180
181
                   (mapcar (function (lambda (entry)
                                       (let ((tmp (copy-tree entry)))
                                         (setcar tmp (encode-coding-string 
182
                                                      (lyskom-get-string (car tmp))
David Byers's avatar
David Byers committed
183
184
185
186
187
188
                                                      'iso-8859-1))
                                         (cons (` ((, (cdr entry)) 
                                                   (, buf)
                                                   (, arg)
                                                   (, text)))
                                               tmp))))
David Byers's avatar
X    
David Byers committed
189
190
191
                           entries)))))


192

David Kågedal's avatar
David Kågedal committed
193
(defun lyskom-button-menu (pos event)
David Byers's avatar
X    
David Byers committed
194
  "Internal function used by kom-popup-menu"
195
196
197
198
199
  (let* ((type  (get-text-property pos 'lyskom-button-type))
         (arg   (get-text-property pos 'lyskom-button-arg))
         (text  (get-text-property pos 'lyskom-button-text))
         (buf   (get-text-property pos 'lyskom-buffer))
         (data  (assq type lyskom-button-actions))
200
201
202
203
204
205
206
         (title (cond 
                 ((get-text-property pos 'lyskom-button-menu-title)
                  (apply 'lyskom-format 
                         (get-text-property pos 'lyskom-button-menu-title)))
                 ((elt data 1)
                  (lyskom-format (lyskom-get-string (elt data 1)) text))
                 (t (lyskom-format (lyskom-get-string 'generic-popup-title) text))))
207
208
209
210
         (actl  (or (and data (elt data 3)) nil)))
    (cond ((null data) (goto-char pos))
          ((null actl) (goto-char pos))
          ((null buf) (goto-char pos))
211
          ((null (get-buffer buf))
212
           (lyskom-message "%s" (lyskom-get-string 'no-such-buffer)))
213
214
215
          (t         
           (if (symbolp title) (setq title (lyskom-get-string title)))
           (set-buffer buf)
216
217
218
219
220

	   ;; There is a simple bug in x-popup-menu which causes menus
	   ;; from simple keymaps to be title-less. A list consisting
	   ;; of a single keymap works better. A patch is submittet to
	   ;; the GNU folks. /davidk
221
222
223
224
225
226
227
228
229
	   (if (eq event 'key)
	       (lyskom-keyboard-menu title actl buf arg text)
	     (let* ((menu (lyskom-make-button-menu title actl
						   buf arg text)))
	       (lyskom-do-popup-menu menu event)))))))


(defun lyskom-keyboard-menu (title entries buf arg text)
  "Do a keyboard menu selection."
David Byers's avatar
David Byers committed
230
231
232
233
234
235
236
237
238
239
  (let* ((prompt nil)
         (maxlen 0)
         (entries (mapcar (lambda (el)
                            (cons (if (stringp (car el)) (car el) (lyskom-get-string (car el)))
                                  (cdr el))) entries))
         (title (if (stringp title) title (lyskom-get-string title)))
         (completion-ignore-case t))
    (lyskom-traverse e entries
      (if (> (lyskom-string-width (car e)) maxlen)
          (setq maxlen (lyskom-string-width (car e)))))
David Byers's avatar
David Byers committed
240
241
    (setq prompt (concat 
                  (substring title 0
David Byers's avatar
David Byers committed
242
                             (min (lyskom-string-width title)
David Byers's avatar
David Byers committed
243
244
245
                                  (- (window-width (minibuffer-window))
                                     maxlen 3))) ": "))

David Byers's avatar
David Byers committed
246
247
248
249
250
251
    (let ((choice (completing-read prompt
                                   entries
                                   nil
                                   t 
                                   (cons (car (car entries))
                                         0) nil)))
David Byers's avatar
David Byers committed
252
253
254
255
      (when choice
        (funcall (cdr (lyskom-string-assoc choice entries))
                 buf arg text)))))

256
       
David Byers's avatar
X    
David Byers committed
257
258

(defun lyskom-button-press (pos)
259
  "Execute the default action of the active area at POS if any."
David Byers's avatar
David Byers committed
260
261
262
263
264
265
266
267
268
  (when pos
    (let* ((type (get-text-property pos 'lyskom-button-type))
           (arg  (get-text-property pos 'lyskom-button-arg))
           (text (get-text-property pos 'lyskom-button-text))
           (buf  (get-text-property pos 'lyskom-buffer))
           (hint (get-text-property pos 'lyskom-button-hint))
           (data (assq type lyskom-button-actions))
           (act  (or (and kom-use-button-hints hint)
                     (and data (elt data 2)))))
269
                 
David Byers's avatar
David Byers committed
270
271
272
273
274
275
276
277
278
      (cond ((null act) (goto-char pos))
            ((null buf) (goto-char pos))
            ((and buf (null (get-buffer buf))) 
             (lyskom-message "%s" (lyskom-get-string 'no-such-buffer)))
            (t (and buf (set-buffer buf))
               (funcall act
                        buf
                        arg
                        text))))))
279
                      
280

David Byers's avatar
David Byers committed
281
282
283
284
285
286
287
288
289
290
291
292
293
294
(defun lyskom-fix-pseudo-url (url)
  (save-match-data
    (if (not (string-match lyskom-url-protocol-regexp url))
        (cond ((string-match "^www\\." url) 
               (concat "http://" url))
              ((string-match "^ftp\\." url) 
               (concat "ftp://" url))
              ((string-match "^gopher\\." url) 
               (concat "gopher://" url))
              ((string-match "^wais\\." url)
               (concat "wais://" url))
              (t (concat "http://" url)))
      url)))

295

296
(defun lyskom-button-transform-text (text)
297
298
299
300
  "Add text properties to the string TEXT according to the definition of
lyskom-text-buttons. Returns the modified string."
  (let ((blist lyskom-text-buttons)
        (start 0)
301
        (el nil))
302
303
    (while blist
      (setq el (car blist))
David Kågedal's avatar
David Kågedal committed
304
      (setq start 0)
305
      (while (string-match (elt el 0) text start)
306
307
308
        (add-text-properties 
         (match-beginning (or (elt el 2) 0))
         (match-end (or (elt el 2) 0))
309
310
         (cond ((and (eq (elt el 1) 'text)
                     (not lyskom-transforming-external-text))
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
                (lyskom-generate-button 'text
                                        (lyskom-button-get-arg el text)
                                        (lyskom-button-get-text el text)
                                        (lyskom-button-get-face el)))
               ((eq (elt el 1) 'conf)
                (lyskom-generate-button 'conf
                                        (lyskom-button-get-arg el text)
                                        (lyskom-button-get-text el text)
                                        (lyskom-button-get-face el)))
               ((eq (elt el 1) 'pers)
                (lyskom-generate-button 'pers
                                        (lyskom-button-get-arg el text)
                                        (lyskom-button-get-text el text)
                                        (lyskom-button-get-face el)))
               ((eq (elt el 1) 'url)
                (lyskom-generate-button 'url
                                        nil
                                        (lyskom-button-get-text el text)
                                        (lyskom-button-get-face el)))
David Byers's avatar
David Byers committed
330
331
332
333
334
335
336
337
338

               ((eq (elt el 1) 'pseudo-url)
                (let ((url (lyskom-fix-pseudo-url
                            (lyskom-button-get-text el text))))
                  (lyskom-generate-button 'url
                                          nil
                                          url
                                          (lyskom-button-get-face el))))

339
340
341
342
343
344
 	       ((eq (elt el 1) 'info-node)
 		(lyskom-generate-button 'info-node
 					(lyskom-button-get-arg el text)
 					(lyskom-button-get-text el text)
 					(lyskom-button-get-face el)))
               
345
346
347
348
349
               ((eq (elt el 1) 'email)
                (lyskom-generate-button 'email
                                        nil
                                        (lyskom-button-get-text el text)
                                        (lyskom-button-get-face el)))
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
               (t nil))
         text)
        (setq start (match-end 0)))
      (setq blist (cdr blist))))
  text)

(defun lyskom-button-get-arg (el text)
  "Get the button argument for button type EL from TEXT according to
the current match-data."
  (let ((no (or (elt el 3) 0)))
    (substring text (match-beginning no) (match-end no))))

(defun lyskom-button-get-text (el text)
  "Get the button text for button type EL from TEXT according to
the current match-data."
  (let ((no (or (elt el 2) 0)))
    (substring text (match-beginning no) (match-end no))))

(defun lyskom-button-get-face (el)
  "Get the button face for button type EL from TEXT according to
the current match-data."
David Byers's avatar
David Byers committed
371
  (elt el 4))
372

373

374
375
376
377
378
379
380
381
382
383
384
385
386
387
(defun lyskom-get-button-hint (hints)
  "Get the hint to be used right now (if any) from HINTS"
  (let ((result nil)
        (hint nil))
    (while (and hints (null result))
      (setq hint (car hints))
      (setq hints (cdr hints))
      (cond ((null (car hint)) 
             (if (and (eq lyskom-current-function
                          (elt hint 1))
                      (or (null (elt hint 2))
                          (eq lyskom-current-function-phase
                              (elt hint 2))))
                 (setq result (elt hint 3))))
David Byers's avatar
X    
David Byers committed
388
389
390
391
392
393
394
395
396
            ((listp (car hint))
             (if (and lyskom-executing-command
                      (memq lyskom-current-command (car hint)))
                 (setq result (cdr hint))))
            ((symbolp (car hint))
             (if (and lyskom-executing-command
                      lyskom-current-command
                      (eq lyskom-current-command (car hint)))
                 (setq result (cdr hint))))))
397
398
399
    result))


400
	
David Byers's avatar
David Byers committed
401
(defun lyskom-generate-button (type arg &optional text face menu-title)
402
403
  "Generate the properties for a button of type TYPE with argument ARG.
Optional argument TEXT is the button text to be saved as a property and
David Byers's avatar
David Byers committed
404
405
406
FACE is the default text face for the button. Optional argument MENU-TITLE
defines the title for the popup menu. See lyskom-default-button for more
information."
407
408
409
410
411
412
413
414
415
416
417
  (let* ((persno (cond ((boundp 'lyskom-pers-no) lyskom-pers-no)
                       ((and (boundp 'lyskom-buffer) lyskom-buffer)
                        (save-excursion
                          (set-buffer lyskom-buffer)
                          lyskom-pers-no))
                       (t -1)))
         (numarg (cond ((numberp arg) arg)
                       ((stringp arg) (string-to-number arg))
                       (t nil)))
         (data (assq type lyskom-button-actions))
         (hints (and data (elt data 4)))
418
         (the-hint (lyskom-get-button-hint hints))
419
420
421
422
423
424
         (props 
          (cond ((and (or (eq type 'conf) 
                          (eq type 'pers))
                      numarg)
                 (list 'face 
                       (or face
David Byers's avatar
David Byers committed
425
426
                           (cond ((eq persno numarg) 'kom-me-face)
                                 ((memq numarg kom-friends) 'kom-friends-face)
427
                                 ((memq numarg kom-morons) 'kom-morons-face)
David Byers's avatar
David Byers committed
428
                                 (t 'kom-active-face)))
429
430
431
432
                       'mouse-face 'kom-highlight-face
                       'lyskom-button-text text
                       'lyskom-button-type type
                       'lyskom-button-arg numarg
David Byers's avatar
David Byers committed
433
                       'lyskom-button-menu-title menu-title
434
435
                       'lyskom-buffer lyskom-buffer))
                ((and (eq type 'text) numarg)
David Byers's avatar
David Byers committed
436
                 (list 'face (or face 'kom-text-no-face)
437
438
439
440
                       'mouse-face 'kom-highlight-face
                       'lyskom-button-text text
                       'lyskom-button-type type
                       'lyskom-button-arg numarg
David Byers's avatar
David Byers committed
441
                       'lyskom-button-menu-title menu-title
442
443
444
445
446
447
                       'lyskom-buffer lyskom-buffer))
                ((eq type 'url)
                 (list 'face (or face 'kom-active-face)
                       'mouse-face 'kom-highlight-face
                       'lyskom-button-text text
                       'lyskom-button-type type
448
                       'lyskom-button-arg arg
David Byers's avatar
David Byers committed
449
                       'lyskom-button-menu-title menu-title
450
                       'lyskom-buffer lyskom-buffer))
451
452
453
454
455
456
                (t
		 (list 'face (or face 'kom-active-face)
		       'mouse-face 'kom-highlight-face
		       'lyskom-button-text text
		       'lyskom-button-type type
		       'lyskom-button-arg arg
David Byers's avatar
David Byers committed
457
                       'lyskom-button-menu-title menu-title
458
		       'lyskom-buffer lyskom-buffer)))))
459

460
461
462
463
464
    (append (list 'rear-nonsticky t)
	    (if the-hint
		(cons 'lyskom-button-hint
		      (cons the-hint props))
	      props))))
465
466
467
      
        
           
468

David Byers's avatar
David Byers committed
469
(defun lyskom-default-button (type arg &optional menu-title)
470
471
  "Generate a button of type TYPE from data in ARG. ARG can be almost any
type of data and is converted to the proper argument type for buttons of
David Byers's avatar
David Byers committed
472
473
474
475
type TYPE before being send to lyskom-generate-button. Optional argument
MENU-TITLE is a list consisting of a format string or symbol and arguments
for the format string. The arguments are not when the menu is popped
up."
David Kågedal's avatar
David Kågedal committed
476
  (and kom-text-properties
477
       (let (xarg text face)
David Kågedal's avatar
David Kågedal committed
478
479
480
481
482
483
	 (cond ((eq type 'conf)
		(cond ((lyskom-conf-stat-p arg)
		       (if (conf-type->letterbox (conf-stat->conf-type arg))
			   (setq type 'pers))
		       (setq xarg (conf-stat->conf-no arg)
			     text (conf-stat->name arg)))
484
485
486
487
488
                      ((lyskom-uconf-stat-p arg)
		       (if (conf-type->letterbox (uconf-stat->conf-type arg))
			   (setq type 'pers))
		       (setq xarg (uconf-stat->conf-no arg)
			     text (uconf-stat->name arg)))
489
490
491
492
493
494
495
496
497
498
		      ((numberp arg)
                       (if (setq xarg (cache-get-conf-stat arg))
                           (progn
                             (if (conf-type->letterbox
                                  (conf-stat->conf-type xarg))
                                 (setq type 'pers))
                             (setq text (conf-stat->name xarg))
                             (setq xarg (conf-stat->conf-no xarg)))
                         (setq text ""
                               xarg arg)))
David Kågedal's avatar
David Kågedal committed
499
500
501
502
503
		      (t (setq text "" xarg 0))))
	       ((eq type 'pers)
		(cond ((lyskom-conf-stat-p arg)
		       (setq xarg (conf-stat->conf-no arg)
			     text (conf-stat->name arg)))
504
505
506
                      ((lyskom-uconf-stat-p arg)
		       (setq xarg (uconf-stat->conf-no arg)
			     text (uconf-stat->name arg)))		      ((lyskom-pers-stat-p arg)
David Kågedal's avatar
David Kågedal committed
507
		       (setq xarg (pers-stat->pers-no arg)
508
509
510
511
512
513
514
515
516
517
518
			     text 
                             (or (conf-stat->name
                                  (cache-get-conf-stat
                                   (pers-stat->pers-no arg)))
                                 "")))
		      ((numberp arg) 
                       (setq text
                             (or (conf-stat->name
                                  (cache-get-conf-stat arg))
                                 "")
                             xarg arg))
David Kågedal's avatar
David Kågedal committed
519
520
521
522
523
524
525
526
527
528
529
		      (t (setq text "" xarg 0))))
	       ((eq type 'text)
		(cond ((stringp arg) (setq xarg (string-to-number arg)
					   text arg))
		      ((numberp arg) (setq xarg arg
					   text (number-to-string arg)))
		      ((lyskom-text-stat-p arg)
		       (setq xarg (text-stat->text-no arg)
			     text (number-to-string (text-stat->text-no arg))))
		      (t (setq xarg 0 text ""))))
	       ((eq type 'url)
530
                (setq face 'kom-url-face)
David Kågedal's avatar
David Kågedal committed
531
532
		(cond ((stringp arg) (setq xarg nil text arg))
		      (t (setq xarg nil text ""))))
533
534
535
536
537
538

               ((eq type 'email)
                (setq face 'kom-url-face)
                (cond ((stringp arg) (setq xarg nil text arg))
                      (t (setq xarg nil text ""))))

David Kågedal's avatar
David Kågedal committed
539
	       (t (setq xarg arg text "")))
540
	 (lyskom-generate-button type xarg text face menu-title))))
541
542
543
544
                  

           

545
546
547
548
549

;;;========================================
;;; Button actions
;;;

David Byers's avatar
X    
David Byers committed
550

551
552
553
554
555
(defun lyskom-button-view-text (buf arg text)
  "In the LysKOM buffer BUF, view the text ARG. Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
David Byers's avatar
David Byers committed
556
           (goto-char (point-max))
557
           (kom-view arg))))
David Byers's avatar
David Byers committed
558

David Byers's avatar
David Byers committed
559
560
561
562
563
(defun lyskom-button-review-noconversion (buf arg text)
  "In the LysKOM buffer BUF, view the text ARG without conversion. 
Last argument TEXT is ignored. This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
David Byers's avatar
David Byers committed
564
           (goto-char (point-max))
David Byers's avatar
David Byers committed
565
           (kom-review-noconversion arg))))
David Byers's avatar
David Byers committed
566
567
568
569
570
571

(defun lyskom-button-review-tree (buf arg text)
  "In the LysKOM buffer BUF, view the text ARG. Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
	(t (pop-to-buffer buf)
David Byers's avatar
David Byers committed
572
           (goto-char (point-max))
David Byers's avatar
David Byers committed
573
574
575
576
577
578
579
	   (kom-review-tree arg))))

(defun lyskom-button-find-root (buf arg text)
  "In the LysKOM buffer BUF, view the text ARG. Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
	(t (pop-to-buffer buf)
David Byers's avatar
David Byers committed
580
           (goto-char (point-max))
David Byers's avatar
David Byers committed
581
	   (kom-find-root arg))))
582

583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
(defun lyskom-button-comment-text (buf arg text)
  "In the LysKOM buffer BUF, comment the text ARG. Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
           (kom-write-comment arg))))

(defun lyskom-button-private-comment-text (buf arg text)
  "In the LysKOM buffer BUF, write a private comment the text ARG. 
Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
           (kom-private-answer arg))))

(defun lyskom-button-mark-text (buf arg text)
  "In the LysKOM buffer BUF, mark the text ARG. Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (unwind-protect
               (progn
                 (pop-to-buffer buf)
                 (lyskom-start-of-command 'kom-mark-text)
606
                 (lyskom-mark-text arg))
607
608
609
610
611
612
613
614
615
616
             (lyskom-end-of-command)))))

(defun lyskom-button-unmark-text (buf arg text)
  "In the LysKOM buffer BUF, unmark the text ARG. Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (unwind-protect
               (progn
                 (pop-to-buffer buf)
                 (lyskom-start-of-command 'kom-unmark-text)
617
                 (lyskom-unmark-text arg))
618
             (lyskom-end-of-command)))))
619
620
621
622
623
624
625
626

(defun lyskom-button-save-text (buf arg text)
  "In the LysKOM buffer BUF, save the text ARG. Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (unwind-protect
               (progn (pop-to-buffer buf)
                      (kom-save-text nil (list arg)))))))
627
  
628

629
630
631
632
633
634
(defun lyskom-button-view-conf-presentation (buf arg text)
  "In the LysKOM buffer BUF, view the presentation of ARG. 
Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
David Byers's avatar
David Byers committed
635
           (goto-char (point-max))
636
637
638
639
640
641
642
643
           (kom-review-presentation arg))))

(defun lyskom-button-view-conf-status (buf arg text)
  "In the LysKOM buffer BUF, view the status of conference ARG. Last argument
TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
David Byers's avatar
David Byers committed
644
           (goto-char (point-max))
645
646
647
648
649
650
651
652
           (kom-status-conf arg))))

(defun lyskom-button-goto-conf (buf arg text)
  "In the LysKOM buffer BUF, go to the conference ARG. Last argument TEXT is
ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
David Byers's avatar
David Byers committed
653
           (goto-char (point-max))
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
           (kom-go-to-conf arg))))

(defun lyskom-button-add-self (buf arg text)
  "In the LysKOM buffer buf, add self to conference ARG."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
           (kom-add-self arg))))

(defun lyskom-button-sub-self (buf arg text)
  "In the LysKOM buffer buf, sub self from conference ARG."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
           (kom-sub-self arg))))

(defun lyskom-button-view-pers-presentation (buf arg text)
  "In the LysKOM buffer BUF, view the presentation of person ARG. 
Last argument TEXT is ignored.
This is a LysKOM button action."
  (lyskom-button-view-conf-presentation buf arg text))

(defun lyskom-button-view-pers-status (buf arg text)
  "In the LysKOM buffer BUF, view the status of person ARG. 
Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
David Byers's avatar
David Byers committed
680
           (goto-char (point-max))
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
           (kom-status-person arg))))

(defun lyskom-button-mail (buf arg text)
  "In the LysKOM buffer BUF, send mail to the conference ARG.
Last argument TEXT is ignored.
This is a LysKOM button action."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
           (kom-send-letter arg))))

(defun lyskom-button-send-message (buf arg text)
  "In the LysKOM buffer BUF, send a personal message to person ARG."
  (cond ((not (integerp arg)) nil)
        (t (pop-to-buffer buf)
           (kom-send-message arg nil))))

697
698
699
700
701
(defun lyskom-button-copy-email (but arg text)
  "In the LysKOM buffer BUF, ignore ARG and copy TEXT to the kill ring.
This is a LysKOM button action."
  (kill-new text))

702
(lyskom-external-function compose-mail)
703
704
705
(defun lyskom-button-open-email (but arg text)
  "In the LysKOM buffer BUF, ignore ARG and open TEXT as an e-mail address.
This is a LysKOM button action."
706
707
708
  (if (fboundp 'compose-mail)
      (compose-mail text)
    (mail nil text)))
709

710
711
712
(defun lyskom-button-copy-url (but arg text)
  "In the LysKOM buffer BUF, ignore ARG and copy TEXT to the kill ring.
This is a LysKOM button action."
David Byers's avatar
X    
David Byers committed
713
  (kill-new (replace-in-string text "\\s-+" "")))
714
715
716
717
718


(defun lyskom-button-open-url (buf arg text)
  "In the LysKOM buffer BUF, ignore ARG and open TEXT as an URL.
This is a LysKOM button action."
David Byers's avatar
David Byers committed
719
  (let* ((url (lyskom-fix-pseudo-url (replace-in-string text "\\s-+" "")))
720
721
         protocol
         url-manager)
David Byers's avatar
David Byers committed
722
723
    (string-match lyskom-url-protocol-regexp url)
    (setq protocol (match-string 1 url))
724
725
726
727
    (setq url-manager (lyskom-get-url-manager protocol))
    (if (null url-manager)
        (lyskom-error "Can't find URL viewer"))
    (funcall (elt url-manager 3) url url-manager)))
728

729
730
731
732
733
 
 
;;;
;;;	Info node button
;;;
734

735
736
737
738
739
740
741
742
743
744
745
(defun lyskom-button-goto-info-node (buf arg text)
  "In the LysKOM buffer BUF, open ARG as an Info node, and ignore TEXT.
This is a LysKOM button action."
  (when (not (fboundp 'Info-goto-node))
    (autoload 'Info-goto-node "info"
      "Go to info node named NAME.  Give just NODENAME or (FILENAME)NODENAME."
      t))
  (setq arg (replace-in-string arg "\n" " " t))
  (setq arg (replace-in-string arg " +" " " t))
  (Info-goto-node arg))
 
746
747
748
749
750
751

;;;
;;;	LysKOM URL Management
;;;

(defun lyskom-get-url-manager (protocol)
752
  "Get the URL manager for PROTOCOL (a string). Returns a function."
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
  (let ((managers kom-url-managers)
	(preferences kom-url-viewer-preferences)
	(result nil))
    (while (and preferences (not result))
      (setq managers kom-url-managers)
      (while (and managers (not result))
	(if (and (string-match (car (car managers))
			       (car preferences))
		 (string-match (car (cdr (car managers)))
			       protocol))
	    (setq result (car managers)))
	(setq managers (cdr managers)))
      (setq preferences (cdr preferences)))
    result))



(defun lyskom-url-manager-starting (manager)
771
  "Tell the user that the URL manager MANAGER is starting."
772
  (lyskom-message "%s" (lyskom-format (lyskom-get-string 'starting-program)
773
774
775
				 (elt manager 2))))


David Byers's avatar
David Byers committed
776
777
(eval-when-compile (defvar browse-url-browser-function nil))

David Byers's avatar
X    
David Byers committed
778
779
780
781
(defun lyskom-view-url-browse-url (url manager)
  (require 'browse-url)
  (funcall browse-url-browser-function url))

782
(defun lyskom-view-url-w3 (url manager)
783
  "View the URL URL using W3. Second argument MANAGER is ignored."
784
785
786
  (w3-fetch url))

(defun lyskom-view-url-dired (url manager)
787
  "View the URL URL using dired. Second argument MANAGER is ignored."
788
789
790
791
792
793
794
795
796
797
  (if (not (and (string-match
		 "\\(file\\|ftp\\)://\\([^/:]*\\)\\(:[0-9]*\\)?\\(/\\|$\\)"
		 url)
		(match-beginning 0)
		(match-beginning 1)
		(match-beginning 2)))
      (lyskom-error "Bad URL"))
  (let ((host (substring url (match-beginning 2) (match-end 2)))
	(path (substring url (match-end 0)))
	(user "anonymous"))
David Byers's avatar
David Byers committed
798
799
    (if  (string-match ";type=.$" path)
        (setq path (substring path 0 (match-beginning 0))))
800
801
802
803
804
    (if (and (string-match "\\([^@]*\\)@" host)
	     (match-beginning 1))
	(progn
	  (setq user (substring host (match-beginning 1) (match-end 1)))
	  (setq host (substring host (match-end 0)))))
David Byers's avatar
David Byers committed
805
806
807
808
    (cond ((string= host "localhost") (find-file path))
          (t (find-file (concat "/" user "@" host ":/" path))))
    ;;    (message "%s  %s  %s" user host path)
    ))
809
810


811

812
(defun lyskom-view-url-telnet (url manager)
813
  "View the URL URL using telnet. Second argument MANAGER is ignored."
814
  (if (not (and (string-match 
David Byers's avatar
David Byers committed
815
                 "telnet://\\([^@]*@\\)?\\([^/:]*\\)\\(:[0-9]*\\)?"
816
817
818
819
820
821
822
823
		 url)
		(match-beginning 0)
		(match-beginning 2)))
      (lyskom-error "Bad URL"))
  (let ((host (substring url (match-beginning 2) (match-end 2)))
	(port (if (match-beginning 3)
		  (substring url (1+ (match-beginning 3)) (match-end 3))
		""))
David Byers's avatar
David Byers committed
824
825
826
	(user (if (match-beginning 1)
                  (substring url (match-beginning 1) (1- (match-end 1)))
                nil))
827
828
        ;; (password nil)
	)
David Byers's avatar
David Byers committed
829
830
    (if (and user
             (string-match "^\\([^:]*\\):\\(.*\\)" user))
831
832
833
834
835
836
837
838
        (progn
	  ;; (setq password (substring user
	  ;; 			    (match-beginning 2)
	  ;; 			    (match-end 2)))
	  (setq user (substring user 
				(match-beginning 1)
				(match-end 1)))))
    
David Byers's avatar
David Byers committed
839
    (telnet (concat host " " port))
840
841
842
843
844
    ;;    (message "u:%s  p:%s  h:%s  #:%s" 
    ;;             (or user "<u>")
    ;;             (or password "<p>")
    ;;             (or host "<h>")
    ;;             (or port "<#>"))
David Byers's avatar
David Byers committed
845
846

    ))
847

848

849
(defun lyskom-view-url-mailmode (url manager)
850
  "View the URL URL using mail in Emacs. The second argument MANAGER is ignored."
851
852
853
854
855
856
  (if (not (and (string-match "mailto:\\([^@]+@.*\\)$" url)
		(match-beginning 1)))
      (lyskom-error "Bad URL"))
  (mail nil (substring url (match-beginning 1) (match-end 1))))


857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
(defun lyskom-view-url-windows (url manager)
  "View the URL URL in Microsoft Windows. MANGER is the URL manager.
Fall back on Netscape if not running in Microsoft Windows."
  (cond ((or (eq window-system 'win32)
             (eq window-system 'mswindows)
             (eq window-system 'w32))
         (let ((programs '("start"
                           "explorer"
                           "C:\\Program Files\\Netscape\\Communicator\\Program\\netscape.exe"
                           "C:\\Program Files\\Netscape\\Navigator\\Program\\netscape.exe")))
           (while programs
             (condition-case nil
                 (progn
                   (start-process (car programs) 
                                  nil
                                  (car programs)
                                  url)
                   (lyskom-url-manager-starting manager)
                   (setq programs nil))
               (error (setq programs (cdr programs)))))))
                                
        (t (lyskom-view-url-netscape url manager))))


881
(defun lyskom-view-url-netscape (url manager)
882
883
884
885
886
  "View the URL URL using Netscape Navigator. The second argument
MANAGER is the URL manager that started Netscape.

This function attempts to load the URL in a running Netscape, but failing
that, starts a new one."
David Byers's avatar
David Byers committed
887
  (setq url (replace-in-string url "," "%2C"))
David Byers's avatar
David Byers committed
888
889
  (setq url (replace-in-string url "(" "%28"))
  (setq url (replace-in-string url ")" "%29"))
David Byers's avatar
David Byers committed
890
891
892
  (let* ((url-string (if (or (eq window-system 'win32)
                             (eq window-system 'mswindows)
                             (eq window-system 'w32))
893
894
895
896
897
                         (list url)
                       (list "-remote"
                             (format "openUrl(%s)" url))))
         
         (proc (apply 'start-process "netscape"
David Byers's avatar
David Byers committed
898
899
900
901
902
903
                      nil
                      (if (listp kom-netscape-command)
                          (car kom-netscape-command)
                        kom-netscape-command)
                      (if (listp kom-netscape-command)
                          (append (cdr kom-netscape-command)
904
905
                                  url-string)
                        url-string)))
906
907
908
909
910
911
912
913
914
         (status 'run)
         (exit nil))
    (lyskom-url-manager-starting manager)
    (while (eq status 'run)
      (accept-process-output)
      (setq status (process-status proc)))
    (setq exit (process-exit-status proc))
    (cond ((and (eq status 'exit) 
                (eq exit 1))
David Byers's avatar
David Byers committed
915
           (apply 'start-process "netscape"
916
                          nil
David Byers's avatar
David Byers committed
917
918
919
920
921
922
923
                          (if (listp kom-netscape-command)
                              (car kom-netscape-command)
                            kom-netscape-command)
                          (if (listp kom-netscape-command)
                              (append (cdr kom-netscape-command)
                                      (list url))
                            (list url))))
924
          (t nil))))
925
926
927


(defun lyskom-view-url-mosaic (url manager)
928
929
  "View the URL URL using NCSA Mosaic. The attempts to open the URL in an
existing Mosaic process. Failing that, it starts a new Mosaic."
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
  (let ((pid -1)
        tempbuffer
        (filename "/tmp/Mosaic."))
    (if (file-exists-p (expand-file-name "~/.mosaicpid"))
        (save-excursion
          (set-buffer 
           (setq tempbuffer (get-buffer-create " *kom*-mosaicpid")))
          (insert-file-contents (expand-file-name "~/.mosaicpid"))
          (setq pid (read tempbuffer))
          (delete-region (point-min) (point-max))
          (insert "newwin\n")
          (insert url)
          (insert "\n")
          (setq filename (concat filename (number-to-string pid)))
          (write-region (point-min) (point-max) filename nil 'x)
          (kill-buffer tempbuffer)
          (if (= -1 (signal-process pid 30))
David Byers's avatar
David Byers committed
947
948
949
950
951
952
953
954
955
              (apply 'start-process "mosaic"
                     (current-buffer)
                     (if (listp kom-mosaic-command)
                         (car kom-mosaic-command)
                       kom-mosaic-command )
                     (if (listp kom-mosaic-command)
                         (append (cdr kom-mosaic-command)
                                 (list url))
                       (list url)))
956
957
	    (lyskom-url-manager-starting manager)))
      (save-excursion
David Byers's avatar
David Byers committed
958
959
960
961
962
963
964
965
966
        (apply 'start-process "mosaic"
               (current-buffer)
               (if (listp kom-mosaic-command)
                   (car kom-mosaic-command)
                 kom-mosaic-command )
               (if (listp kom-mosaic-command)
                   (append (cdr kom-mosaic-command)
                           (list url))
                 (list url)))
967
968
	(lyskom-url-manager-starting manager)))))

Peter Liljenberg's avatar
Peter Liljenberg committed
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
;; Added by Peter Liljenberg
(defun lyskom-view-url-lynx (url manager)
  "View the URL URL using Lynx.
Lynx will be run either in an xterm or in Emacs terminal mode,
depending on the value of `kom-lynx-terminal'."
  (cond
   ((eq kom-lynx-terminal 'xterm)
    (apply 'start-process
	   "lynx"
	   nil
	   (car kom-lynx-xterm-command)
	   (append (cdr kom-lynx-xterm-command) (list url)))
    (lyskom-url-manager-starting manager))

   ((eq kom-lynx-terminal 'terminal)
    (let* ((lbuf (get-buffer "*Lynx*"))
	   (lproc (and lbuf (get-buffer-process lbuf))))
      (if lproc
	  ;; Tell existing Lynx to fetch URL
	  (process-send-string lproc (concat "g" url "\n"))

	;; Create a new Lynx
	(switch-to-buffer
	 (apply 'make-term "Lynx"
		(if (listp kom-lynx-terminal-command)
		    (car kom-lynx-terminal-command)
		  kom-lynx-terminal-command)
		nil
		(if (listp kom-lynx-terminal-command)
		    (append (cdr kom-lynx-terminal-command) (list url))
		  (list url))))
	(delete-other-windows)
	(term-char-mode)
	(set-process-sentinel
	 (get-buffer-process (current-buffer))
	 (function (lambda (proc str)
		     (kill-buffer (process-buffer proc))))))
      (lyskom-url-manager-starting manager)))

   (t (lyskom-error "Bad Lynx terminal: %s" kom-lynx-terminal))
   ))
1010

David Kågedal's avatar
David Kågedal committed
1011
1012
1013
;;;
;;;	email buttons
;;;
1014

David Kågedal's avatar
David Kågedal committed
1015
1016
(defun lyskom-button-send-mail (to)
  (mail nil to))
1017
1018
1019
1020
1021

;;;
;;;     aux-item buttons
;;;

David Byers's avatar
David Byers committed
1022
(defun lyskom-button-delete-aux (buf arg text)
1023
  (let ((aux nil))
1024
    (cond ((lyskom-aux-item-p arg))
1025
1026
1027
1028
1029
1030
          ((listp arg)
           (let ((items (cond ((eq 'text (car arg))
                               (text-stat->aux-items 
                                (blocking-do 'get-text-stat (elt arg 1))))
                              ((eq 'conf (car arg))
                               (conf-stat->aux-items 
David Byers's avatar
David Byers committed
1031
                                (blocking-do 'get-conf-stat (elt arg 1))))
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
                              (t nil))))
             (while items
               (when (eq (aux-item->aux-no (car items)) (elt arg 2))
                 (setq aux (car items))
                 (setq items nil))
               (setq items (cdr items))))))

    (when aux
      (lyskom-start-of-command nil)
      (unwind-protect
          (progn
            (if (blocking-do (cond ((eq 'text (car arg)) 'modify-text-info)
                                   ((eq 'conf (car arg)) 'modify-conf-info))
                             (elt arg 1)
                             (list (aux-item->aux-no aux))
                             nil)
                (cond ((eq 'text (car arg)) (cache-del-text-stat (elt arg 1)))
                      ((eq 'conf (car arg)) (cache-del-conf-stat (elt arg 1))))
              (lyskom-report-command-answer nil)))
        (lyskom-end-of-command)))))
          

(defun lyskom-button-info-aux (buf arg text)
  (pop-to-buffer buf)
David Byers's avatar
David Byers committed
1056
  (goto-char (point-max))
1057
  (let ((aux nil))
1058
    (cond ((lyskom-aux-item-p arg))
1059
1060
1061
1062
1063
1064
          ((listp arg) 
           (let ((items (cond ((eq 'text (car arg))
                               (text-stat->aux-items 
                                (blocking-do 'get-text-stat (elt arg 1))))
                              ((eq 'conf (car arg))
                               (conf-stat->aux-items 
David Byers's avatar
David Byers committed
1065
                                (blocking-do 'get-conf-stat (elt arg 1))))
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
                              (t nil))))
             (while items
               (when (eq (aux-item->aux-no (car items)) (elt arg 2))
                 (setq aux (car items))
                 (setq items nil))
               (setq items (cdr items))))))
              
    (if aux
        (progn
          (lyskom-start-of-command nil)
          (unwind-protect
1077
              (let ((data (lyskom-aux-item-call 
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
                           aux
                           'info 
                           aux
                           (cond ((eq 'text (car arg)) 
                                  (lyskom-format 'text-no (elt arg 1)))
                                 ((eq 'conf (car arg))
                                  (lyskom-format 'conference-no
                                                 (blocking-do 'get-conf-stat
                                                              (elt arg 1))))
                                 (t "????")))))
                (if data
                    (lyskom-insert data)
                  (lyskom-format-insert 'aux-item-no-info)))
            (lyskom-end-of-command)))
      (lyskom-format-insert 'cant-get-aux-item))))
           
David Byers's avatar
David Byers committed
1094
1095
(defun lyskom-button-apply (buf arg text)
  (apply (car arg) (cdr arg)))