1 ;;; newst-plainview.el --- Single buffer frontend for newsticker.
3 ;; Copyright (C) 2003-2014 Free Software Foundation, Inc.
5 ;; Author: Ulf Jasper <ulf.jasper@web.de>
6 ;; Filename: newst-plainview.el
7 ;; URL: http://www.nongnu.org/newsticker
10 ;; ======================================================================
12 ;; This file is part of GNU Emacs.
14 ;; GNU Emacs is free software: you can redistribute it and/or modify
15 ;; it under the terms of the GNU General Public License as published by
16 ;; the Free Software Foundation, either version 3 of the License, or
17 ;; (at your option) any later version.
19 ;; GNU Emacs is distributed in the hope that it will be useful,
20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 ;; GNU General Public License for more details.
24 ;; You should have received a copy of the GNU General Public License
25 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
27 ;; ======================================================================
32 ;; ======================================================================
35 (require 'newst-ticker
)
36 (require 'newst-reader
)
42 (defvar w3m-minor-mode-map
)
44 ;; ======================================================================
46 ;; ======================================================================
47 (defgroup newsticker-plainview nil
48 "Settings for the simple plain view reader.
49 See also `newsticker-plainview-hooks'."
50 :group
'newsticker-reader
)
53 (defun newsticker--set-customvar-buffer (symbol value
)
54 "Set newsticker-variable SYMBOL value to VALUE.
55 Calls all actions which are necessary in order to make the new
57 (if (or (not (boundp symbol
))
58 (equal (symbol-value symbol
) value
))
60 ;; something must have changed
62 (newsticker--buffer-set-uptodate nil
)))
64 (defun newsticker--set-customvar-sorting (symbol value
)
65 "Set newsticker-variable SYMBOL value to VALUE.
66 Calls all actions which are necessary in order to make the new
68 (if (or (not (boundp symbol
))
69 (equal (symbol-value symbol
) value
))
71 ;; something must have changed
73 (message "Applying new sort method...")
74 (when (fboundp 'newsticker--cache-sort
) (newsticker--cache-sort))
75 (when (fboundp 'newsticker--buffer-set-uptodate
)
76 (newsticker--buffer-set-uptodate nil
))
77 (message "Applying new sort method...done")))
79 (defcustom newsticker-sort-method
80 'sort-by-original-order
81 "Sort method for news items.
82 The following sort methods are available:
83 * `sort-by-original-order' keeps the order in which the items
84 appear in the headline file (please note that for immortal items,
85 which have been removed from the news feed, there is no original
87 * `sort-by-time' looks at the time at which an item has been seen
88 the first time. The most recent item is put at top,
89 * `sort-by-title' will put the items in an alphabetical order."
91 (const :tag
"Keep original order" sort-by-original-order
)
92 (const :tag
"Sort by time" sort-by-time
)
93 (const :tag
"Sort by title" sort-by-title
))
94 :set
'newsticker--set-customvar-sorting
95 :group
'newsticker-plainview
)
97 (defcustom newsticker-heading-format
100 "Format string for feed headings.
101 The following printf-like specifiers can be used:
102 %d The date the feed was retrieved. See `newsticker-date-format'.
103 %l The logo (image) of the feed. Most news feeds provide a small
104 image as logo. Newsticker can display them, if Emacs can --
105 see `image-types' for a list of supported image types.
106 %L The logo (image) of the feed. If the logo is not available
107 the title of the feed is used.
108 %s The statistical data of the feed. See `newsticker-statistics-format'.
109 %t The title of the feed, i.e. its name."
111 :set
'newsticker--set-customvar-formatting
112 :group
'newsticker-plainview
)
114 (defcustom newsticker-item-format
116 "Format string for news item headlines.
117 The following printf-like specifiers can be used:
118 %d The date the item was (first) retrieved. See `newsticker-date-format'.
119 %l The logo (image) of the feed. Most news feeds provide a small
120 image as logo. Newsticker can display them, if Emacs can --
121 see `image-types' for a list of supported image types.
122 %L The logo (image) of the feed. If the logo is not available
123 the title of the feed is used.
124 %t The title of the item."
126 :set
'newsticker--set-customvar-formatting
127 :group
'newsticker-plainview
)
129 (defcustom newsticker-desc-format
131 "Format string for news descriptions (contents).
132 The following printf-like specifiers can be used:
133 %c The contents (description) of the item.
134 %d The date the item was (first) retrieved. See
135 `newsticker-date-format'."
137 :set
'newsticker--set-customvar-formatting
138 :group
'newsticker-plainview
)
140 (defcustom newsticker-statistics-format
141 "[%n + %i + %o + %O = %a]"
142 "Format for the statistics part in feed lines.
143 The following printf-like specifiers can be used:
144 %a The number of all items in the feed.
145 %i The number of immortal items in the feed.
146 %n The number of new items in the feed.
147 %o The number of old items in the feed.
148 %O The number of obsolete items in the feed."
150 :set
'newsticker--set-customvar-formatting
151 :group
'newsticker-plainview
)
154 ;; ======================================================================
157 (defface newsticker-new-item-face
'((t :weight bold
))
158 "Face for new news items."
159 :group
'newsticker-faces
)
161 (defface newsticker-old-item-face
162 '((default :weight bold
)
163 (((class color
) (background dark
)) :foreground
"orange3")
164 (((class color
) (background light
)) :foreground
"red4"))
165 "Face for old news items."
166 :group
'newsticker-faces
)
168 (defface newsticker-immortal-item-face
169 '((default :weight bold
:slant italic
)
170 (((class color
) (background dark
)) :foreground
"orange")
171 (((class color
) (background light
)) :foreground
"blue"))
172 "Face for immortal news items."
173 :group
'newsticker-faces
)
175 (defface newsticker-obsolete-item-face
176 '((t :weight bold
:strike-through t
))
177 "Face for old news items."
178 :group
'newsticker-faces
)
180 (defface newsticker-date-face
'((t :slant italic
:height
0.8))
181 "Face for newsticker dates."
182 :group
'newsticker-faces
)
184 (defface newsticker-statistics-face
'((t :slant italic
:height
0.8))
185 "Face for newsticker dates."
186 :group
'newsticker-faces
)
188 (defface newsticker-default-face
'((t))
189 "Face for the description of news items."
190 :group
'newsticker-faces
)
192 (defcustom newsticker-hide-old-items-in-newsticker-buffer
194 "Decides whether to automatically hide old items in the *newsticker* buffer.
195 If set to t old items will be completely folded and only new
196 items will show up in the *newsticker* buffer. Otherwise old as
197 well as new items will be visible."
199 :set
'newsticker--set-customvar-buffer
200 :group
'newsticker-plainview
)
202 (defcustom newsticker-show-descriptions-of-new-items
204 "Whether to automatically show descriptions of new items in *newsticker*.
205 If set to t old items will be folded and new items will be
206 unfolded. Otherwise old as well as new items will be folded."
208 :set
'newsticker--set-customvar-buffer
209 :group
'newsticker-plainview
)
211 (defcustom newsticker-show-all-news-elements
213 "Show all news elements."
215 ;;:set 'newsticker--set-customvar
216 :group
'newsticker-plainview
)
218 ;; ======================================================================
220 (defgroup newsticker-plainview-hooks nil
221 "Settings for newsticker hooks which apply to plainview only."
222 :group
'newsticker-hooks
)
224 (defcustom newsticker-select-item-hook
225 'newsticker--buffer-make-item-completely-visible
226 "List of functions run after a headline has been selected.
227 Each function is called after one of `newsticker-next-item',
228 `newsticker-next-new-item', `newsticker-previous-item',
229 `newsticker-previous-new-item' has been called.
231 The default value 'newsticker--buffer-make-item-completely-visible
232 assures that the current item is always completely visible."
234 :options
'(newsticker--buffer-make-item-completely-visible)
235 :group
'newsticker-plainview-hooks
)
237 (defcustom newsticker-select-feed-hook
238 'newsticker--buffer-make-item-completely-visible
239 "List of functions run after a feed has been selected.
240 Each function is called after one of `newsticker-next-feed', and
241 `newsticker-previous-feed' has been called.
243 The default value 'newsticker--buffer-make-item-completely-visible
244 assures that the current feed is completely visible."
246 :options
'(newsticker--buffer-make-item-completely-visible)
247 :group
'newsticker-plainview-hooks
)
249 (defcustom newsticker-buffer-change-hook
250 'newsticker-w3m-show-inline-images
251 "List of functions run after the newsticker buffer has been updated.
252 Each function is called after `newsticker-buffer-update' has been called.
254 The default value '`newsticker-w3m-show-inline-images' loads inline
257 :group
'newsticker-plainview-hooks
)
259 (defcustom newsticker-narrow-hook
260 'newsticker-w3m-show-inline-images
261 "List of functions run after narrowing in newsticker buffer has changed.
262 Each function is called after
263 `newsticker-toggle-auto-narrow-to-feed' or
264 `newsticker-toggle-auto-narrow-to-item' has been called.
266 The default value '`newsticker-w3m-show-inline-images' loads inline
269 :group
'newsticker-plainview-hooks
)
271 ;; ======================================================================
273 ;; ======================================================================
275 (defvar newsticker--plainview-tool-bar-map
276 (if (featurep 'xemacs
)
278 (if (boundp 'tool-bar-map
)
279 (let ((tool-bar-map (make-sparse-keymap)))
280 (tool-bar-add-item "newsticker/prev-feed"
281 'newsticker-previous-feed
282 'newsticker-previous-feed
283 :help
"Go to previous feed"
284 :enable
'(newsticker-previous-feed-available-p))
285 (tool-bar-add-item "newsticker/prev-item"
286 'newsticker-previous-item
287 'newsticker-previous-item
288 :help
"Go to previous item"
289 :enable
'(newsticker-previous-item-available-p))
290 (tool-bar-add-item "newsticker/next-item"
291 'newsticker-next-item
292 'newsticker-next-item
293 :help
"Go to next item"
294 :enable
'(newsticker-next-item-available-p))
295 (tool-bar-add-item "newsticker/next-feed"
296 'newsticker-next-feed
297 'newsticker-next-feed
298 :help
"Go to next feed"
299 :enable
'(newsticker-next-feed-available-p))
300 (tool-bar-add-item "newsticker/narrow"
301 'newsticker-toggle-auto-narrow-to-feed
302 'newsticker-toggle-auto-narrow-to-feed
303 :help
"Toggle visibility of other feeds")
304 (tool-bar-add-item "newsticker/mark-immortal"
305 'newsticker-mark-item-at-point-as-immortal
306 'newsticker-mark-item-at-point-as-immortal
307 :help
"Mark current item as immortal"
308 :enable
'(newsticker-item-not-immortal-p))
309 (tool-bar-add-item "newsticker/mark-read"
310 'newsticker-mark-item-at-point-as-read
311 'newsticker-mark-item-at-point-as-read
312 :help
"Mark current item as read"
313 :enable
'(newsticker-item-not-old-p))
314 (tool-bar-add-item "newsticker/get-all-news"
315 'newsticker-get-all-news
316 'newsticker-get-all-news
317 :help
"Get news for all feeds")
318 (tool-bar-add-item "newsticker/update"
319 'newsticker-buffer-force-update
320 'newsticker-buffer-force-update
321 :help
"Update newsticker buffer"
322 :enable
'(not newsticker--buffer-uptodate-p
))
323 (tool-bar-add-item "newsticker/browse-url"
324 'newsticker-browse-url
325 'newsticker-browse-url
326 :help
"Browse URL for item at point")
327 ;; standard icons / actions
328 (define-key tool-bar-map
[newsticker-sep-1
]
329 (list 'menu-item
"--double-line"))
330 (tool-bar-add-item "close"
331 'newsticker-close-buffer
332 'newsticker-close-buffer
333 :help
"Close newsticker buffer")
334 (tool-bar-add-item "preferences"
335 'newsticker-customize
336 'newsticker-customize
337 :help
"Customize newsticker")
340 ;; ======================================================================
342 ;; ======================================================================
346 (defvar newsticker-menu
347 (let ((map (make-sparse-keymap "Newsticker")))
349 (define-key map
[newsticker-browse-url
]
350 '("Browse URL for item at point" . newsticker-browse-url
))
351 (define-key map
[newsticker-separator-1
]
353 (define-key map
[newsticker-buffer-update
]
354 '("Update buffer" . newsticker-buffer-update
))
355 (define-key map
[newsticker-separator-2
]
357 (define-key map
[newsticker-get-all-news
]
358 '("Get news from all feeds" . newsticker-get-all-news
))
359 (define-key map
[newsticker-get-news-at-point
]
360 '("Get news from feed at point" . newsticker-get-news-at-point
))
361 (define-key map
[newsticker-separator-3
]
363 (define-key map
[newsticker-mark-all-items-as-read
]
364 '("Mark all items as read" . newsticker-mark-all-items-as-read
))
365 (define-key map
[newsticker-mark-all-items-at-point-as-read
]
366 '("Mark all items in feed at point as read" .
367 newsticker-mark-all-items-at-point-as-read
))
368 (define-key map
[newsticker-mark-item-at-point-as-read
]
369 '("Mark item at point as read" .
370 newsticker-mark-item-at-point-as-read
))
371 (define-key map
[newsticker-mark-item-at-point-as-immortal
]
372 '("Toggle immortality for item at point" .
373 newsticker-mark-item-at-point-as-immortal
))
374 (define-key map
[newsticker-separator-4
]
376 (define-key map
[newsticker-toggle-auto-narrow-to-item
]
377 '("Narrow to single item" . newsticker-toggle-auto-narrow-to-item
))
378 (define-key map
[newsticker-toggle-auto-narrow-to-feed
]
379 '("Narrow to single news feed" . newsticker-toggle-auto-narrow-to-feed
))
380 (define-key map
[newsticker-hide-old-items
]
381 '("Hide old items" . newsticker-hide-old-items
))
382 (define-key map
[newsticker-show-old-items
]
383 '("Show old items" . newsticker-show-old-items
))
384 (define-key map
[newsticker-next-item
]
385 '("Go to next item" . newsticker-next-item
))
386 (define-key map
[newsticker-previous-item
]
387 '("Go to previous item" . newsticker-previous-item
))
390 (defvar newsticker-mode-map
391 (let ((map (make-keymap)))
392 (define-key map
"sO" 'newsticker-show-old-items
)
393 (define-key map
"hO" 'newsticker-hide-old-items
)
394 (define-key map
"sa" 'newsticker-show-all-desc
)
395 (define-key map
"ha" 'newsticker-hide-all-desc
)
396 (define-key map
"sf" 'newsticker-show-feed-desc
)
397 (define-key map
"hf" 'newsticker-hide-feed-desc
)
398 (define-key map
"so" 'newsticker-show-old-item-desc
)
399 (define-key map
"ho" 'newsticker-hide-old-item-desc
)
400 (define-key map
"sn" 'newsticker-show-new-item-desc
)
401 (define-key map
"hn" 'newsticker-hide-new-item-desc
)
402 (define-key map
"se" 'newsticker-show-entry
)
403 (define-key map
"he" 'newsticker-hide-entry
)
404 (define-key map
"sx" 'newsticker-show-extra
)
405 (define-key map
"hx" 'newsticker-hide-extra
)
407 (define-key map
[?\S-\
] 'scroll-down-command
)
408 (define-key map
" " 'scroll-up-command
)
409 (define-key map
"q" 'newsticker-close-buffer
)
410 (define-key map
"p" 'newsticker-previous-item
)
411 (define-key map
"P" 'newsticker-previous-new-item
)
412 (define-key map
"F" 'newsticker-previous-feed
)
413 (define-key map
"\t" 'newsticker-next-item
)
414 (define-key map
"n" 'newsticker-next-item
)
415 (define-key map
"N" 'newsticker-next-new-item
)
416 (define-key map
"f" 'newsticker-next-feed
)
417 (define-key map
"M" 'newsticker-mark-all-items-as-read
)
419 'newsticker-mark-all-items-at-point-as-read-and-redraw
)
421 'newsticker-mark-item-at-point-as-read
)
423 'newsticker-mark-all-items-at-point-as-read
)
424 (define-key map
"G" 'newsticker-get-all-news
)
425 (define-key map
"g" 'newsticker-get-news-at-point
)
426 (define-key map
"u" 'newsticker-buffer-update
)
427 (define-key map
"U" 'newsticker-buffer-force-update
)
428 (define-key map
"a" 'newsticker-add-url
)
431 'newsticker-mark-item-at-point-as-immortal
)
434 'newsticker-toggle-auto-narrow-to-feed
)
436 'newsticker-toggle-auto-narrow-to-item
)
438 ;; Bind menu to mouse.
439 (define-key map
[down-mouse-3
] newsticker-menu
)
440 ;; Put menu in menu-bar.
441 (define-key map
[menu-bar Newsticker
]
442 (cons "Newsticker" newsticker-menu
))
446 (define-derived-mode newsticker-mode fundamental-mode
448 "Viewing news feeds in Emacs."
449 (if (boundp 'tool-bar-map
)
450 (set (make-local-variable 'tool-bar-map
)
451 newsticker--plainview-tool-bar-map
))
452 (set (make-local-variable 'imenu-sort-function
) nil
)
453 (set (make-local-variable 'scroll-conservatively
) 999)
454 (setq imenu-create-index-function
'newsticker--imenu-create-index
)
455 (setq imenu-default-goto-function
'newsticker--imenu-goto
)
456 (setq buffer-read-only t
)
457 (auto-fill-mode -
1) ;; turn auto-fill off!
458 (font-lock-mode -
1) ;; turn off font-lock!!
459 (set (make-local-variable 'font-lock-defaults
) nil
)
460 (set (make-local-variable 'line-move-ignore-invisible
) t
)
461 (setq mode-line-format
465 'mode-line-frame-identification
467 '(newsticker--buffer-uptodate-p
471 '(:eval
(format "[%d]" (length newsticker--process-ids
)))
473 '(:eval
(newsticker--buffer-get-feed-title-at-point))
475 '(:eval
(newsticker--buffer-get-item-title-at-point))
477 (add-to-invisibility-spec 't
)
478 (unless newsticker-show-all-news-elements
479 (add-to-invisibility-spec 'extra
))
480 (newsticker--buffer-set-uptodate nil
))
482 ;; maps for the clickable portions
483 (defvar newsticker--url-keymap
484 (let ((map (make-sparse-keymap)))
485 (define-key map
[mouse-1
] 'newsticker-mouse-browse-url
)
486 (define-key map
[mouse-2
] 'newsticker-mouse-browse-url
)
487 (define-key map
"\n" 'newsticker-browse-url
)
488 (define-key map
"\C-m" 'newsticker-browse-url
)
489 (define-key map
[(control return
)] 'newsticker-handle-url
)
491 "Key map for click-able headings in the newsticker buffer.")
494 ;; ======================================================================
496 ;; ======================================================================
498 (defun newsticker-plainview ()
499 "Start newsticker plainview."
501 (newsticker-buffer-update t
)
502 (switch-to-buffer "*newsticker*"))
504 (defun newsticker-buffer-force-update ()
505 "Update the newsticker buffer, even if not necessary."
507 (newsticker-buffer-update t
))
509 (defun newsticker-buffer-update (&optional force
)
510 "Update the *newsticker* buffer.
511 Unless FORCE is t this is done only if necessary, i.e. when the
512 *newsticker* buffer is not up-to-date."
514 ;; bring cache data into proper order....
515 (newsticker--cache-sort)
518 (let ((buf (get-buffer "*newsticker*")))
520 (switch-to-buffer buf
)
521 (switch-to-buffer (get-buffer-create "*newsticker*"))
522 (newsticker--buffer-set-uptodate nil
)))
524 (not newsticker--buffer-uptodate-p
))
525 (message "Preparing newsticker buffer...")
526 (setq buffer-undo-list t
)
527 (let ((inhibit-read-only t
))
528 (set-buffer-modified-p nil
)
531 ;; Emacs 21.3.50 does not care if we turn off auto-fill in the
532 ;; definition of newsticker-mode, so we do it here (again)
535 (set-buffer-file-coding-system 'utf-8
)
537 (if newsticker-use-full-width
538 (set (make-local-variable 'fill-column
) (1- (window-width))))
539 (newsticker--buffer-insert-all-items)
541 ;; FIXME: needed for methods buffer in ecb
542 ;; (set-visited-file-name "*newsticker*")
544 (set-buffer-modified-p nil
)
545 (newsticker-hide-all-desc)
546 (if newsticker-hide-old-items-in-newsticker-buffer
547 (newsticker-hide-old-items))
548 (if newsticker-show-descriptions-of-new-items
549 (newsticker-show-new-item-desc))
552 (newsticker--buffer-set-uptodate t
)
553 (run-hooks 'newsticker-buffer-change-hook
)))
555 (defun newsticker-get-news-at-point ()
556 "Launch retrieval of news for the feed point is in.
557 This does NOT start the retrieval timers."
559 ;; launch retrieval of news
560 (let ((feed (get-text-property (point) 'feed
)))
562 (newsticker--debug-msg "Getting news for %s" (symbol-name feed
))
563 (newsticker-get-news (symbol-name feed
)))))
565 (unless (fboundp 'declare-function
) (defmacro declare-function
(&rest r
)))
566 (declare-function w3m-toggle-inline-image
"ext:w3m" (&optional force no-cache
))
568 (defun newsticker-w3m-show-inline-images ()
569 "Show inline images in visible text ranges.
570 In-line images in invisible text ranges are hidden. This function
571 calls `w3m-toggle-inline-image'. It works only if
572 `newsticker-html-renderer' is set to `w3m-region'."
574 (if (eq newsticker-html-renderer
'w3m-region
)
575 (let ((inhibit-read-only t
))
579 (goto-char (point-min))
582 (setq pos
(next-single-property-change pos
'w3m-image
))
585 (when (get-text-property pos
'w3m-image
)
586 (let ((invis (newsticker--lists-intersect-p
587 (get-text-property (1- (point))
589 buffer-invisibility-spec
)))
590 (unless (car (get-text-property (1- (point))
593 (w3m-toggle-inline-image t
)))))))))))))
595 ;; ======================================================================
597 ;; ======================================================================
598 (defun newsticker-close-buffer ()
599 "Close the newsticker buffer."
601 (newsticker--cache-update t
)
604 (defun newsticker-next-new-item (&optional do-not-wrap-at-eob
)
605 "Go to next new news item.
606 If no new item is found behind point, search is continued at
607 beginning of buffer unless optional argument DO-NOT-WRAP-AT-EOB
613 (unless (newsticker--buffer-goto '(item) 'new
)
614 ;; found nothing -- wrap
615 (unless do-not-wrap-at-eob
616 (goto-char (point-min))
617 (newsticker-next-new-item t
))
619 (unless (newsticker--lists-intersect-p
620 (get-text-property (point) 'invisible
)
621 buffer-invisibility-spec
)
622 ;; this item is invisible -- continue search
623 (setq go-ahead nil
))))
624 (run-hooks 'newsticker-select-item-hook
)
627 (defun newsticker-previous-new-item (&optional do-not-wrap-at-bob
)
628 "Go to previous new news item.
629 If no new item is found before point, search is continued at
630 beginning of buffer unless optional argument DO-NOT-WRAP-AT-BOB
636 (unless (newsticker--buffer-goto '(item) 'new t
)
637 (unless do-not-wrap-at-bob
638 (goto-char (point-max))
639 (newsticker--buffer-goto '(item) 'new t
)))
640 (unless (newsticker--lists-intersect-p
641 (get-text-property (point) 'invisible
)
642 buffer-invisibility-spec
)
643 (setq go-ahead nil
))))
644 (run-hooks 'newsticker-select-item-hook
)
647 (defun newsticker-next-item (&optional do-not-wrap-at-eob
)
648 "Go to next news item.
649 Return new buffer position.
650 If no item is found below point, search is continued at beginning
651 of buffer unless optional argument DO-NOT-WRAP-AT-EOB is
656 (search-list '(item)))
657 (if newsticker--auto-narrow-to-item
658 (setq search-list
'(item feed
)))
660 (unless (newsticker--buffer-goto search-list
)
661 ;; found nothing -- wrap
662 (unless do-not-wrap-at-eob
663 (goto-char (point-min)))
665 (unless (newsticker--lists-intersect-p
666 (get-text-property (point) 'invisible
)
667 buffer-invisibility-spec
)
668 (setq go-ahead nil
))))
669 (run-hooks 'newsticker-select-item-hook
)
670 (force-mode-line-update)
673 (defun newsticker-next-item-same-feed ()
674 "Go to next news item in the same feed.
675 Return new buffer position. If no item is found below point or if
676 auto-narrow-to-item is enabled, nil is returned."
678 (if newsticker--auto-narrow-to-item
681 (current-pos (point))
682 (end-of-feed (save-excursion (newsticker--buffer-end-of-feed))))
684 (unless (newsticker--buffer-goto '(item))
686 (unless (newsticker--lists-intersect-p
687 (get-text-property (point) 'invisible
)
688 buffer-invisibility-spec
)
689 (setq go-ahead nil
)))
690 (if (and (> (point) current-pos
)
691 (< (point) end-of-feed
))
693 (goto-char current-pos
)
696 (defun newsticker-previous-item (&optional do-not-wrap-at-bob
)
697 "Go to previous news item.
698 Return new buffer position.
699 If no item is found before point, search is continued at
700 beginning of buffer unless optional argument DO-NOT-WRAP-AT-BOB
705 (search-list '(item)))
706 (if newsticker--auto-narrow-to-item
707 (setq search-list
'(item feed
)))
709 (unless do-not-wrap-at-bob
710 (goto-char (point-max))))
712 (if (newsticker--buffer-goto search-list nil t
)
713 (unless (newsticker--lists-intersect-p
714 (get-text-property (point) 'invisible
)
715 buffer-invisibility-spec
)
717 (goto-char (point-min))
718 (setq go-ahead nil
))))
719 (run-hooks 'newsticker-select-item-hook
)
720 (force-mode-line-update)
723 (defun newsticker-next-feed ()
724 "Go to next news feed.
725 Return new buffer position."
728 (newsticker--buffer-goto '(feed))
729 (run-hooks 'newsticker-select-feed-hook
)
730 (force-mode-line-update)
733 (defun newsticker-previous-feed ()
734 "Go to previous news feed.
735 Return new buffer position."
738 (newsticker--buffer-goto '(feed) nil t
)
739 (run-hooks 'newsticker-select-feed-hook
)
740 (force-mode-line-update)
743 (defun newsticker-mark-all-items-at-point-as-read-and-redraw ()
744 "Mark all items as read and clear ticker contents."
746 (when (or newsticker--buffer-uptodate-p
748 "Buffer is not up to date -- really mark items as read? "))
749 (newsticker-mark-all-items-of-feed-as-read
750 (get-text-property (point) 'feed
))))
752 (defun newsticker-mark-all-items-of-feed-as-read (feed)
753 "Mark all items of FEED as read, clear ticker, and redraw buffer."
756 (message "Marking all items as read for %s" (symbol-name feed
))
757 (newsticker--cache-replace-age newsticker--cache feed
'new
'old
)
758 (newsticker--cache-replace-age newsticker--cache feed
'obsolete
760 (newsticker--cache-update)
761 (newsticker--buffer-set-uptodate nil
)
762 (newsticker--ticker-text-setup)
763 (newsticker-buffer-update)
764 ;; Go back to where we came from.
767 (newsticker--buffer-goto '(feed) nil t
))))
769 (defun newsticker-mark-all-items-at-point-as-read ()
770 "Mark all items as read and clear ticker contents."
772 (when (or newsticker--buffer-uptodate-p
774 "Buffer is not up to date -- really mark items as read? "))
775 (newsticker--do-mark-item-at-point-as-read t
)
776 (while (newsticker-next-item-same-feed)
777 (newsticker--do-mark-item-at-point-as-read t
))
778 (newsticker-next-item t
)))
780 (defun newsticker-mark-item-at-point-as-read (&optional respect-immortality
)
781 "Mark item at point as read and move to next item.
782 If optional argument RESPECT-IMMORTALITY is not nil immortal items do
785 (when (or newsticker--buffer-uptodate-p
787 "Buffer is not up to date -- really mark this item as read? "))
788 (newsticker--do-mark-item-at-point-as-read respect-immortality
)
790 (newsticker-next-item t
)))
792 (defun newsticker--do-mark-item-at-point-as-read (&optional respect-immortality
)
793 "Mark item at point as read.
794 If optional argument RESPECT-IMMORTALITY is not nil immortal items do
796 (let ((feed (get-text-property (point) 'feed
)))
799 (newsticker--buffer-beginning-of-item)
800 (let ((inhibit-read-only t
)
801 (age (get-text-property (point) 'nt-age
))
802 (title (get-text-property (point) 'nt-title
))
803 (guid (get-text-property (point) 'nt-guid
))
804 (nt-desc (get-text-property (point) 'nt-desc
))
805 (pos (save-excursion (newsticker--buffer-end-of-item)))
807 (when (or (eq age
'new
)
809 (and (eq age
'immortal
)
810 (not respect-immortality
)))
812 (setq item
(newsticker--cache-contains newsticker--cache
817 (setcar (nthcdr 4 item
) 'old
)
818 (newsticker--do-forget-preformatted item
))
820 (if (or (and (eq age
'new
)
821 newsticker-hide-immortal-items-in-echo-area
)
822 (and (memq age
'(old immortal
))
824 (eq newsticker-hide-old-items-in-newsticker-buffer
825 newsticker-hide-immortal-items-in-echo-area
))))
826 (newsticker--ticker-text-remove feed title
))
831 (put-text-property (point) pos
'nt-age
'old
)
832 (newsticker--buffer-set-faces (point) pos
)))
833 (set-buffer-modified-p nil
)))))))
835 (defun newsticker-mark-item-at-point-as-immortal ()
836 "Mark item at point as read."
838 (when (or newsticker--buffer-uptodate-p
840 "Buffer is not up to date -- really mark this item as read? "))
841 (let ((feed (get-text-property (point) 'feed
))
845 (newsticker--buffer-beginning-of-item)
846 (let ((inhibit-read-only t
)
847 (oldage (get-text-property (point) 'nt-age
))
848 (title (get-text-property (point) 'nt-title
))
849 (guid (get-text-property (point) 'nt-guid
))
850 (pos (save-excursion (newsticker--buffer-end-of-item))))
851 (let ((newage 'immortal
))
852 (if (eq oldage
'immortal
)
854 (setq item
(newsticker--cache-contains newsticker--cache
855 feed title nil nil nil
859 (setcar (nthcdr 4 item
) newage
)
860 (newsticker--do-forget-preformatted item
))
861 (if (or (and (eq newage
'immortal
)
862 newsticker-hide-immortal-items-in-echo-area
)
863 (and (eq newage
'obsolete
)
864 newsticker-hide-obsolete-items-in-echo-area
)
865 (and (eq oldage
'immortal
)
867 (eq newsticker-hide-old-items-in-newsticker-buffer
868 newsticker-hide-immortal-items-in-echo-area
))))
869 (newsticker--ticker-text-remove feed title
)
870 (newsticker--ticker-text-setup))
874 (put-text-property (point) pos
'nt-age newage
)
875 (if (eq newage
'immortal
)
876 (put-text-property (point) pos
'nt-age
'immortal
)
877 (put-text-property (point) pos
'nt-age
'old
))
878 (newsticker--buffer-set-faces (point) pos
))))))
880 (newsticker-next-item t
))))))
882 (defun newsticker-mark-all-items-as-read ()
883 "Mark all items as read and clear ticker contents."
885 (when (or newsticker--buffer-uptodate-p
887 "Buffer is not up to date -- really mark items as read? "))
888 (newsticker--cache-replace-age newsticker--cache
'any
'new
'old
)
889 (newsticker--buffer-set-uptodate nil
)
890 (newsticker--ticker-text-setup)
891 (newsticker--cache-update)
892 (newsticker-buffer-update)))
894 (defun newsticker-hide-extra ()
895 "Hide the extra elements of items."
897 (newsticker--buffer-hideshow 'extra nil
)
898 (newsticker--buffer-redraw))
900 (defun newsticker-show-extra ()
901 "Show the extra elements of items."
903 (newsticker--buffer-hideshow 'extra t
)
904 (newsticker--buffer-redraw))
906 (defun newsticker-hide-old-item-desc ()
907 "Hide the description of old items."
909 (newsticker--buffer-hideshow 'desc-old nil
)
910 (newsticker--buffer-redraw))
912 (defun newsticker-show-old-item-desc ()
913 "Show the description of old items."
915 (newsticker--buffer-hideshow 'item-old t
)
916 (newsticker--buffer-hideshow 'desc-old t
)
917 (newsticker--buffer-redraw))
919 (defun newsticker-hide-new-item-desc ()
920 "Hide the description of new items."
922 (newsticker--buffer-hideshow 'desc-new nil
)
923 (newsticker--buffer-hideshow 'desc-immortal nil
)
924 (newsticker--buffer-hideshow 'desc-obsolete nil
)
925 (newsticker--buffer-redraw))
927 (defun newsticker-show-new-item-desc ()
928 "Show the description of new items."
930 (newsticker--buffer-hideshow 'desc-new t
)
931 (newsticker--buffer-hideshow 'desc-immortal t
)
932 (newsticker--buffer-hideshow 'desc-obsolete t
)
933 (newsticker--buffer-redraw))
935 (defun newsticker-hide-feed-desc ()
936 "Hide the description of feeds."
938 (newsticker--buffer-hideshow 'desc-feed nil
)
939 (newsticker--buffer-redraw))
941 (defun newsticker-show-feed-desc ()
942 "Show the description of old items."
944 (newsticker--buffer-hideshow 'desc-feed t
)
945 (newsticker--buffer-redraw))
947 (defun newsticker-hide-all-desc ()
948 "Hide the descriptions of feeds and all items."
950 (newsticker--buffer-hideshow 'desc-feed nil
)
951 (newsticker--buffer-hideshow 'desc-immortal nil
)
952 (newsticker--buffer-hideshow 'desc-obsolete nil
)
953 (newsticker--buffer-hideshow 'desc-new nil
)
954 (newsticker--buffer-hideshow 'desc-old nil
)
955 (newsticker--buffer-redraw))
957 (defun newsticker-show-all-desc ()
958 "Show the descriptions of feeds and all items."
960 (newsticker--buffer-hideshow 'desc-feed t
)
961 (newsticker--buffer-hideshow 'desc-immortal t
)
962 (newsticker--buffer-hideshow 'desc-obsolete t
)
963 (newsticker--buffer-hideshow 'desc-new t
)
964 (newsticker--buffer-hideshow 'desc-old t
)
965 (newsticker--buffer-redraw))
967 (defun newsticker-hide-old-items ()
970 (newsticker--buffer-hideshow 'desc-old nil
)
971 (newsticker--buffer-hideshow 'item-old nil
)
972 (newsticker--buffer-redraw))
974 (defun newsticker-show-old-items ()
977 (newsticker--buffer-hideshow 'item-old t
)
978 (newsticker--buffer-redraw))
980 (defun newsticker-hide-entry ()
981 "Hide description of entry at point."
985 (inhibit-read-only t
)
986 inv-prop org-inv-prop
988 (newsticker--buffer-beginning-of-item)
989 (newsticker--buffer-goto '(desc))
990 (setq pos1
(max (point-min) (1- (point))))
991 (newsticker--buffer-goto '(extra feed item nil
))
992 (setq pos2
(max (point-min) (1- (point))))
993 (setq inv-prop
(get-text-property pos1
'invisible
))
994 (setq org-inv-prop
(get-text-property pos1
'org-invisible
))
995 (cond ((eq inv-prop t
)
998 ((eq org-inv-prop nil
)
999 (add-text-properties pos1 pos2
1000 (list 'invisible
(list t
)
1001 'org-invisible inv-prop
)))
1004 (add-text-properties pos1 pos2
1005 (list 'invisible org-inv-prop
))
1006 (remove-text-properties pos1 pos2
'(org-invisible))))))
1007 (newsticker--buffer-redraw))
1009 (defun newsticker-show-entry ()
1010 "Show description of entry at point."
1014 (inhibit-read-only t
)
1015 inv-prop org-inv-prop
1017 (newsticker--buffer-beginning-of-item)
1018 (newsticker--buffer-goto '(desc))
1019 (setq pos1
(max (point-min) (1- (point))))
1020 (newsticker--buffer-goto '(extra feed item
))
1021 (setq pos2
(max (point-min) (1- (point))))
1022 (setq inv-prop
(get-text-property pos1
'invisible
))
1023 (setq org-inv-prop
(get-text-property pos1
'org-invisible
))
1024 (cond ((eq org-inv-prop nil
)
1025 (add-text-properties pos1 pos2
1026 (list 'invisible nil
1027 'org-invisible inv-prop
)))
1030 (add-text-properties pos1 pos2
1031 (list 'invisible org-inv-prop
))
1032 (remove-text-properties pos1 pos2
'(org-invisible))))))
1033 (newsticker--buffer-redraw))
1035 (defun newsticker-toggle-auto-narrow-to-feed ()
1036 "Toggle narrowing to current news feed.
1037 If auto-narrowing is active, only news item of the current feed
1040 (newsticker-set-auto-narrow-to-feed
1041 (not newsticker--auto-narrow-to-feed
)))
1043 (defun newsticker-set-auto-narrow-to-feed (value)
1044 "Turn narrowing to current news feed on or off.
1045 If VALUE is nil, auto-narrowing is turned off, otherwise it is turned on."
1047 (setq newsticker--auto-narrow-to-item nil
)
1048 (setq newsticker--auto-narrow-to-feed value
)
1050 (newsticker--buffer-make-item-completely-visible)
1051 (run-hooks 'newsticker-narrow-hook
))
1053 (defun newsticker-toggle-auto-narrow-to-item ()
1054 "Toggle narrowing to current news item.
1055 If auto-narrowing is active, only one item of the current feed
1058 (newsticker-set-auto-narrow-to-item
1059 (not newsticker--auto-narrow-to-item
)))
1061 (defun newsticker-set-auto-narrow-to-item (value)
1062 "Turn narrowing to current news item on or off.
1063 If VALUE is nil, auto-narrowing is turned off, otherwise it is turned on."
1065 (setq newsticker--auto-narrow-to-feed nil
)
1066 (setq newsticker--auto-narrow-to-item value
)
1068 (newsticker--buffer-make-item-completely-visible)
1069 (run-hooks 'newsticker-narrow-hook
))
1071 (defun newsticker-next-feed-available-p ()
1072 "Return t if position is before last feed, nil otherwise."
1075 (newsticker--buffer-goto '(feed))
1076 (not (= p
(point))))))
1078 (defun newsticker-previous-feed-available-p ()
1079 "Return t if position is behind first feed, nil otherwise."
1082 (newsticker--buffer-goto '(feed) nil t
)
1083 (not (= p
(point))))))
1085 (defun newsticker-next-item-available-p ()
1086 "Return t if position is before last feed, nil otherwise."
1089 (while (< (point) (point-max))
1090 (unless (newsticker--buffer-goto '(item))
1091 (throw 'result nil
))
1092 (unless (newsticker--lists-intersect-p
1093 (get-text-property (point) 'invisible
)
1094 buffer-invisibility-spec
)
1095 (throw 'result t
))))))
1097 (defun newsticker-previous-item-available-p ()
1098 "Return t if position is behind first item, nil otherwise."
1101 (while (> (point) (point-min))
1102 (unless (newsticker--buffer-goto '(item) nil t
)
1103 (throw 'result nil
))
1104 (unless (newsticker--lists-intersect-p
1105 (get-text-property (point) 'invisible
)
1106 buffer-invisibility-spec
)
1107 (throw 'result t
))))))
1109 (defun newsticker-item-not-old-p ()
1110 "Return t if there is an item at point which is not old, nil otherwise."
1111 (when (get-text-property (point) 'feed
)
1113 (newsticker--buffer-beginning-of-item)
1114 (let ((age (get-text-property (point) 'nt-age
)))
1115 (and (memq age
'(new immortal obsolete
)) t
)))))
1117 (defun newsticker-item-not-immortal-p ()
1118 "Return t if there is an item at point which is not immortal, nil otherwise."
1119 (when (get-text-property (point) 'feed
)
1121 (newsticker--buffer-beginning-of-item)
1122 (let ((age (get-text-property (point) 'nt-age
)))
1123 (and (memq age
'(new old obsolete
)) t
)))))
1125 ;; ======================================================================
1127 ;; ======================================================================
1128 (defun newsticker--imenu-create-index ()
1129 "Scan newsticker buffer and return an index for imenu."
1131 (goto-char (point-min))
1132 (let ((index-alist nil
)
1136 (let ((type (get-text-property (point) 'nt-type
))
1137 (title (get-text-property (point) 'nt-title
)))
1138 (cond ((eq type
'feed
)
1139 ;; we're on a feed heading
1142 (nconc index-alist
(list feed-list
))
1143 (setq index-alist
(list feed-list
))))
1144 (setq feed-list
(list title
)))
1147 (list (cons title
(point)))))))
1148 (setq go-ahead
(newsticker--buffer-goto '(item feed
))))
1150 (nconc index-alist
(list feed-list
))
1151 (setq index-alist
(list feed-list
)))
1154 (defun newsticker--imenu-goto (name pos
&rest args
)
1155 "Go to item NAME at position POS and show item.
1159 (newsticker--buffer-goto '(desc extra feed item
))
1160 (let* ((inhibit-read-only t
)
1161 (pos1 (max (point-min) (1- pos
)))
1162 (pos2 (max pos1
(1- (point))))
1163 (inv-prop (get-text-property pos
'invisible
))
1164 (org-inv-prop (get-text-property pos
'org-invisible
)))
1165 (when (eq org-inv-prop nil
)
1166 (add-text-properties pos1 pos2
(list 'invisible nil
1167 'org-invisible inv-prop
))))
1169 (newsticker-show-entry))
1171 ;; ======================================================================
1173 ;; ======================================================================
1174 (defun newsticker--buffer-set-uptodate (value)
1175 "Set the uptodate-status of the newsticker buffer to VALUE.
1176 The mode-line is changed accordingly."
1177 (setq newsticker--buffer-uptodate-p value
)
1178 (let ((b (get-buffer "*newsticker*")))
1180 (with-current-buffer b
1181 (setq mode-name
(if value
1182 "Newsticker -- up to date -- "
1183 "Newsticker -- NEED UPDATE -- ")))
1184 (force-mode-line-update 0))))
1186 (defun newsticker--buffer-redraw ()
1187 "Redraw the newsticker window."
1188 (if (fboundp 'force-window-update
)
1189 (force-window-update (current-buffer))
1191 (run-hooks 'newsticker-buffer-change-hook
)
1194 (defun newsticker--buffer-insert-all-items ()
1195 "Insert all cached newsticker items into the current buffer.
1196 Keeps order of feeds as given in `newsticker-url-list' and
1197 `newsticker-url-list-defaults'."
1198 (goto-char (point-min))
1199 (mapc (lambda (url-item)
1200 (let* ((feed-name (car url-item
))
1201 (feed-name-symbol (intern feed-name
))
1202 (feed (assoc feed-name-symbol newsticker--cache
))
1206 ;; insert the feed description
1207 (mapc (lambda (item)
1208 (when (eq (newsticker--age item
) 'feed
)
1209 (newsticker--buffer-insert-item item
1213 (mapc (lambda (item)
1214 (if (memq (newsticker--age item
) '(new immortal old
1216 (newsticker--buffer-insert-item item
1219 (put-text-property pos
(point) 'feed
(car feed
))
1221 ;; insert empty line between feeds
1224 (put-text-property p
(point) 'hard t
)))))
1225 (append newsticker-url-list newsticker-url-list-defaults
))
1227 (newsticker--buffer-set-faces (point-min) (point-max))
1228 (newsticker--buffer-set-invisibility (point-min) (point-max))
1229 (goto-char (point-min)))
1231 (defun newsticker--buffer-insert-item (item &optional feed-name-symbol
)
1232 "Insert a news item in the current buffer.
1233 Insert a formatted representation of the ITEM. The optional parameter
1234 FEED-NAME-SYMBOL determines how the item is formatted and whether the
1235 item-retrieval time is added as well."
1237 (if (eq (newsticker--age item
) 'feed
)
1238 (newsticker--buffer-do-insert-text item
'feed feed-name-symbol
)
1239 (newsticker--buffer-do-insert-text item
'item feed-name-symbol
))
1240 ;; insert the description
1241 (newsticker--buffer-do-insert-text item
'desc feed-name-symbol
))
1243 (defun newsticker--buffer-do-insert-text (item type feed-name-symbol
)
1244 "Actually insert contents of news item, format it, render it and all that.
1245 ITEM is a news item, TYPE tells which part of the item shall be inserted,
1246 FEED-NAME-SYMBOL tells to which feed this item belongs."
1247 (let* ((pos (point))
1248 (format newsticker-desc-format
)
1249 (pos-date-start nil
)
1251 (pos-stat-start nil
)
1253 (pos-text-start nil
)
1255 (pos-extra-start nil
)
1257 (pos-enclosure-start nil
)
1258 (pos-enclosure-end nil
)
1259 (age (newsticker--age item
))
1260 (preformatted-contents (newsticker--preformatted-contents item
))
1261 (preformatted-title (newsticker--preformatted-title item
)))
1262 (cond ((and preformatted-contents
1263 (not (eq (aref preformatted-contents
0) ?
\n));; we must
1267 (insert preformatted-contents
))
1268 ((and preformatted-title
1269 (not (eq (aref preformatted-title
0) ?
\n));; we must NOT have a
1272 (insert preformatted-title
))
1274 ;; item was not formatted before.
1277 (setq format newsticker-item-format
)
1279 (setq format newsticker-heading-format
)))
1281 (while (> (length format
) 0)
1282 (let ((prefix (if (> (length format
) 1)
1283 (substring format
0 2)
1285 (cond ((string= "%c" prefix
)
1287 (when (newsticker--desc item
)
1288 (setq pos-text-start
(point-marker))
1289 (insert (newsticker--desc item
))
1290 (setq pos-text-end
(point-marker)))
1291 (setq format
(substring format
2)))
1292 ((string= "%d" prefix
)
1294 (setq pos-date-start
(point-marker))
1295 (if (newsticker--time item
)
1296 (insert (format-time-string newsticker-date-format
1297 (newsticker--time item
))))
1298 (setq pos-date-end
(point-marker))
1299 (setq format
(substring format
2)))
1300 ((string= "%l" prefix
)
1302 (let ((disabled (cond ((eq (newsticker--age item
) 'feed
)
1303 (= (newsticker--stat-num-items
1304 feed-name-symbol
'new
) 0))
1306 (not (eq (newsticker--age item
)
1308 (let ((img (newsticker--image-read feed-name-symbol
1311 (newsticker--insert-image img
(car item
)))))
1312 (setq format
(substring format
2)))
1313 ((string= "%L" prefix
)
1315 (let ((disabled (cond ((eq (newsticker--age item
) 'feed
)
1316 (= (newsticker--stat-num-items
1317 feed-name-symbol
'new
) 0))
1319 (not (eq (newsticker--age item
)
1321 (let ((img (newsticker--image-read feed-name-symbol
1324 (newsticker--insert-image img
(car item
))
1326 (setq pos-text-start
(point-marker))
1327 (if (eq (newsticker--age item
) 'feed
)
1328 (insert (newsticker--title item
))
1329 ;; FIXME: This is not the "real" title!
1330 (insert (format "%s"
1331 (car (newsticker--cache-get-feed
1332 feed-name-symbol
)))))
1333 (setq pos-text-end
(point-marker))))))
1334 (setq format
(substring format
2)))
1335 ((string= "%s" prefix
)
1337 (setq pos-stat-start
(point-marker))
1338 (if (eq (newsticker--age item
) 'feed
)
1339 (insert (newsticker--buffer-statistics
1341 (setq pos-stat-end
(point-marker))
1342 (setq format
(substring format
2)))
1343 ((string= "%t" prefix
)
1346 (setq pos-text-start
(point-marker))
1348 (setq pos-text-end
(point-marker)))
1349 (setq format
(substring format
2)))
1350 ((string-match "%." prefix
)
1351 ;; unknown specifier!
1353 (setq format
(substring format
2)))
1354 ((string-match "^\\([^%]*\\)\\(.*\\)" format
) ;; FIXME!
1357 (insert (substring format
1358 (match-beginning 1) (match-end 1)))
1359 ;; in case that the format string contained newlines
1360 (put-text-property p
(point) 'hard t
))
1361 (setq format
(substring format
(match-beginning 2)))))))
1363 ;; decode HTML if possible...
1364 (let ((is-rendered-HTML nil
))
1365 (when (and newsticker-html-renderer pos-text-start pos-text-end
)
1366 (condition-case error-data
1368 ;; check whether it is necessary to call html renderer
1369 ;; (regexp inspired by htmlr.el)
1370 (goto-char pos-text-start
)
1371 (when (re-search-forward
1372 "</?[A-Za-z1-6]*\\|&#?[A-Za-z0-9]+;" pos-text-end t
)
1373 ;; (message "%s" (newsticker--title item))
1374 (let ((w3m-fill-column (if newsticker-use-full-width
1376 (w3-maximum-line-length
1377 (if newsticker-use-full-width nil fill-column
)))
1379 (funcall newsticker-html-renderer pos-text-start
1381 (cond ((eq newsticker-html-renderer
'w3m-region
)
1382 (add-text-properties pos
(point-max)
1384 w3m-minor-mode-map
)))
1385 ((eq newsticker-html-renderer
'w3-region
)
1386 (add-text-properties pos
(point-max)
1387 (list 'keymap w3-mode-map
))))
1388 (setq is-rendered-HTML t
)))
1390 (message "Error: HTML rendering failed: %s, %s"
1391 (car error-data
) (cdr error-data
)))))
1392 ;; After html rendering there might be chunks of blank
1393 ;; characters between rendered text and date, statistics or
1394 ;; whatever. Remove it
1395 (when (and (eq type
'item
) is-rendered-HTML
)
1397 (while (re-search-forward "[ \t]*\n[ \t]*" nil t
)
1398 (replace-match " " nil nil
))
1399 (goto-char (point-max)))
1400 (when (and newsticker-justification
1401 (memq type
'(item desc
))
1402 (not is-rendered-HTML
))
1404 (let ((use-hard-newlines t
))
1405 (fill-region pos
(point-max) newsticker-justification
))
1408 ;; remove leading and trailing newlines
1410 (unless (= 0 (skip-chars-forward " \t\r\n"))
1411 (delete-region pos
(point)))
1412 (goto-char (point-max))
1413 (let ((end (point)))
1414 (unless (= 0 (skip-chars-backward " \t\r\n" (1+ pos
)))
1415 (delete-region (point) end
)))
1416 (goto-char (point-max))
1418 (unless nil
;;(eq pos (point))
1420 (put-text-property (1- (point)) (point) 'hard t
))
1422 ;; insert enclosure element
1423 (when (eq type
'desc
)
1424 (setq pos-enclosure-start
(point))
1425 (newsticker--insert-enclosure item newsticker--url-keymap
)
1426 (setq pos-enclosure-end
(point)))
1428 ;; show extra elements
1429 (when (eq type
'desc
)
1430 (goto-char (point-max))
1431 (setq pos-extra-start
(point))
1432 (newsticker--print-extra-elements item newsticker--url-keymap
)
1433 (setq pos-extra-end
(point)))
1436 (when (memq type
'(feed item
))
1437 (add-text-properties pos
(1- (point))
1438 (list 'mouse-face
'highlight
1439 'nt-link
(newsticker--link item
)
1441 (format "mouse-2: visit item (%s)"
1442 (newsticker--link item
))
1443 'keymap newsticker--url-keymap
))
1444 (add-text-properties pos
(point)
1445 (list 'nt-title
(newsticker--title item
)
1446 'nt-desc
(newsticker--desc item
))))
1448 (add-text-properties pos
(point)
1452 'nt-guid
(newsticker--guid item
)))
1453 (when (and pos-date-start pos-date-end
)
1454 (put-text-property pos-date-start pos-date-end
'nt-face
'date
))
1455 (when (and pos-stat-start pos-stat-end
)
1456 (put-text-property pos-stat-start pos-stat-end
'nt-face
'stat
))
1457 (when (and pos-extra-start pos-extra-end
)
1458 (put-text-property pos-extra-start pos-extra-end
1460 (put-text-property pos-extra-start pos-extra-end
1462 (when (and pos-enclosure-start pos-enclosure-end
1463 (> pos-enclosure-end pos-enclosure-start
))
1464 (put-text-property pos-enclosure-start
(1- pos-enclosure-end
)
1465 'nt-face
'enclosure
))
1468 ;;(unless (memq type '(feed item))
1469 ;;(set-left-margin pos (1- (point)) 1))
1471 ;; save rendered stuff
1472 (cond ((eq type
'desc
)
1473 ;; preformatted contents
1474 (newsticker--cache-set-preformatted-contents
1475 item
(buffer-substring pos
(point))))
1477 ;; preformatted title
1478 (newsticker--cache-set-preformatted-title
1479 item
(buffer-substring pos
(point)))))))))
1481 (defun newsticker--buffer-statistics (feed-name-symbol)
1482 "Return a statistic string for the feed given by FEED-NAME-SYMBOL.
1483 See `newsticker-statistics-format'."
1484 (let ((case-fold-search nil
))
1485 (replace-regexp-in-string
1487 (format "%d" (newsticker--stat-num-items feed-name-symbol
))
1488 (replace-regexp-in-string
1490 (format "%d" (newsticker--stat-num-items feed-name-symbol
'immortal
))
1491 (replace-regexp-in-string
1493 (format "%d" (newsticker--stat-num-items feed-name-symbol
'new
))
1494 (replace-regexp-in-string
1496 (format "%d" (newsticker--stat-num-items feed-name-symbol
'old
))
1497 (replace-regexp-in-string
1499 (format "%d" (newsticker--stat-num-items feed-name-symbol
'obsolete
))
1500 newsticker-statistics-format
)))))))
1502 (defun newsticker--buffer-set-faces (start end
)
1503 "Add face properties according to mark property.
1504 Scans the buffer between START and END."
1506 (put-text-property start end
'face
'newsticker-default-face
)
1510 (nt-face (get-text-property start
'nt-face
))
1511 (nt-age (get-text-property start
'nt-age
)))
1513 (setq pos2
(next-single-property-change (point) 'nt-face
))
1514 (newsticker--set-face-properties pos1 pos2 nt-face nt-age
)
1515 (setq nt-face
(get-text-property pos2
'nt-face
))
1517 (while (and (setq pos2
(next-single-property-change pos1
'nt-face
))
1520 (newsticker--set-face-properties pos1 pos2 nt-face nt-age
)
1521 (setq nt-face
(get-text-property pos2
'nt-face
))
1522 (setq nt-age
(get-text-property pos2
'nt-age
))
1523 (setq pos1 pos2
)))))
1525 (defun newsticker--buffer-set-invisibility (start end
)
1526 "Add invisibility properties according to nt-type property.
1527 Scans the buffer between START and END. Sets the 'invisible
1528 property to '(<nt-type>-<nt-age> <nt-type> <nt-age>)."
1530 ;; reset invisibility settings
1531 (put-text-property start end
'invisible nil
)
1536 (nt-type (get-text-property start
'nt-type
))
1537 (nt-age (get-text-property start
'nt-age
)))
1539 (setq pos2
(next-single-property-change (point) 'nt-type
))
1540 (put-text-property (max (point-min) pos1
) (1- pos2
)
1545 (if (eq nt-type
'extra
) 'desc nt-type
))
1547 (symbol-name nt-age
)))
1550 (setq nt-type
(get-text-property pos2
'nt-type
))
1552 (while (and (setq pos2
(next-single-property-change pos1
'nt-type
))
1555 ;; must shift one char to the left in order to handle invisible
1556 ;; newlines, motion in invisible text areas and all that correctly
1557 (put-text-property (1- pos1
) (1- pos2
)
1562 (if (eq nt-type
'extra
) 'desc nt-type
))
1564 (symbol-name nt-age
)))
1567 (setq nt-type
(get-text-property pos2
'nt-type
))
1568 (setq nt-age
(get-text-property pos2
'nt-age
))
1569 (setq pos1 pos2
)))))
1571 (defun newsticker--set-face-properties (pos1 pos2 nt-face age
)
1572 "Set the face for the text between the positions POS1 and POS2.
1573 The face is chosen according the values of NT-FACE and AGE."
1574 (let ((face (cond ((eq nt-face
'feed
)
1575 'newsticker-feed-face
)
1577 (cond ((eq age
'new
)
1578 'newsticker-new-item-face
)
1580 'newsticker-old-item-face
)
1582 'newsticker-immortal-item-face
)
1584 'newsticker-obsolete-item-face
)))
1586 'newsticker-date-face
)
1588 'newsticker-statistics-face
)
1589 ((eq nt-face
'extra
)
1590 'newsticker-extra-face
)
1591 ((eq nt-face
'enclosure
)
1592 'newsticker-enclosure-face
))))
1594 (put-text-property pos1
(max pos1 pos2
) 'face face
))))
1596 ;; ======================================================================
1597 ;;; Functions working on the *newsticker* buffer
1598 ;; ======================================================================
1599 (defun newsticker--buffer-make-item-completely-visible ()
1600 "Scroll buffer until current item is completely visible."
1601 (when newsticker--auto-narrow-to-feed
1602 (let* ((min (or (save-excursion (newsticker--buffer-beginning-of-feed))
1604 (max (or (save-excursion (newsticker--buffer-end-of-feed))
1606 (narrow-to-region min max
)))
1607 (when newsticker--auto-narrow-to-item
1608 (let* ((min (or (save-excursion (newsticker--buffer-beginning-of-item))
1610 (max (or (save-excursion (newsticker--buffer-end-of-item))
1612 (narrow-to-region min max
)))
1614 ;; do not count lines and stuff because that does not work when images
1615 ;; are displayed. Do it the simple way:
1617 (newsticker--buffer-end-of-item)
1618 (unless (pos-visible-in-window-p)
1620 (unless (pos-visible-in-window-p)
1623 (defun newsticker--buffer-get-feed-title-at-point ()
1624 "Return feed symbol of headline at point."
1625 (format "%s" (or (get-text-property (point) 'feed
) " ")))
1627 (defun newsticker--buffer-get-item-title-at-point ()
1628 "Return feed symbol of headline at point."
1629 (format "%s" (or (get-text-property (point) 'nt-title
) " ")))
1631 (defun newsticker--buffer-goto (types &optional age backwards
)
1632 "Search next occurrence of TYPES in current buffer.
1633 TYPES is a list of symbols. If TYPES is found point is moved, if
1634 not point is left unchanged. If optional parameter AGE is not
1635 nil, the type AND the age must match. If BACKWARDS is t, search
1637 (let ((pos (save-excursion
1641 (let ((tpos (point)))
1644 (if (eq tpos
(point-min))
1646 (or (previous-single-property-change
1649 (next-single-property-change
1651 (and (memq (get-text-property tpos
'nt-type
) types
)
1653 (eq (get-text-property tpos
'nt-age
) age
))
1654 (throw 'found tpos
)))))))))
1659 (defun newsticker--buffer-hideshow (mark-age onoff
)
1660 "Hide or show items of type MARK-AGE.
1661 If ONOFF is nil the item is hidden, otherwise it is shown."
1663 (remove-from-invisibility-spec mark-age
)
1664 (add-to-invisibility-spec mark-age
)))
1666 (defun newsticker--buffer-beginning-of-item ()
1667 "Move point to the beginning of the item at point.
1668 Return new position."
1671 (let ((type (get-text-property (point) 'nt-type
))
1672 (typebefore (get-text-property (1- (point)) 'nt-type
)))
1673 (if (and (memq type
'(item feed
))
1674 (not (eq type typebefore
)))
1676 (newsticker--buffer-goto '(item feed
) nil t
)
1679 (defun newsticker--buffer-beginning-of-feed ()
1680 "Move point to the beginning of the feed at point.
1681 Return new position."
1684 (let ((type (get-text-property (point) 'nt-type
))
1685 (typebefore (get-text-property (1- (point)) 'nt-type
)))
1686 (if (and (memq type
'(feed))
1687 (not (eq type typebefore
)))
1689 (newsticker--buffer-goto '(feed) nil t
)
1692 (defun newsticker--buffer-end-of-item ()
1693 "Move point to the end of the item at point.
1694 Take care: end of item is at the end of its last line!"
1695 (when (newsticker--buffer-goto '(item feed nil
))
1698 (defun newsticker--buffer-end-of-feed ()
1699 "Move point to the end of the last item of the feed at point.
1700 Take care: end of item is at the end of its last line!"
1701 (when (newsticker--buffer-goto '(feed nil
))
1705 ;; ======================================================================
1707 ;; ======================================================================
1709 (defun newsticker-mouse-browse-url (event)
1710 "Call `browse-url' for the link of the item at which the EVENT occurred."
1713 (switch-to-buffer (window-buffer (posn-window (event-end event
))))
1714 (let ((url (get-text-property (posn-point (event-end event
))
1719 (goto-char (posn-point (event-end event
)))
1720 (if newsticker-automatically-mark-visited-items-as-old
1721 (newsticker-mark-item-at-point-as-read t
)))))))
1723 (defun newsticker-browse-url ()
1724 "Call `browse-url' for the link of the item at point."
1726 (let ((url (get-text-property (point) 'nt-link
)))
1729 (if newsticker-automatically-mark-visited-items-as-old
1730 (newsticker-mark-item-at-point-as-read t
)))))
1732 (defvar newsticker-open-url-history
1733 '("wget" "xmms" "realplay")
1736 (defun newsticker-handle-url ()
1737 "Ask for a program to open the link of the item at point."
1739 (let ((url (get-text-property (point) 'nt-link
)))
1741 (let ((prog (read-string "Open url with: " nil
1742 'newsticker-open-url-history
)))
1744 (message "%s %s" prog url
)
1745 (start-process prog prog prog url
)
1746 (if newsticker-automatically-mark-visited-items-as-old
1747 (newsticker-mark-item-at-point-as-read t
)))))))
1750 ;; ======================================================================
1752 ;; ======================================================================
1754 (defun newsticker--cache-sort ()
1755 "Sort the newsticker cache data."
1756 (let ((sort-fun (cond ((eq newsticker-sort-method
'sort-by-time
)
1757 'newsticker--cache-item-compare-by-time
)
1758 ((eq newsticker-sort-method
'sort-by-title
)
1759 'newsticker--cache-item-compare-by-title
)
1760 ((eq newsticker-sort-method
'sort-by-original-order
)
1761 'newsticker--cache-item-compare-by-position
))))
1762 (mapc (lambda (feed-list)
1763 (setcdr feed-list
(sort (cdr feed-list
)
1765 newsticker--cache
)))
1767 (provide 'newst-plainview
)
1769 ;;; newst-plainview.el ends here