lisp/net/newst-plainview.el

   1 ;;; newst-plainview.el --- Single buffer frontend for newsticker.
   2
   3 ;; Copyright (C) 2003-2018 Free Software Foundation, Inc.
   4
   5 ;; Author:      Ulf Jasper <ulf.jasper@web.de>
   6 ;; Filename:    newst-plainview.el
   7 ;; URL:         http://www.nongnu.org/newsticker
   8 ;; Package:     newsticker
   9
  10 ;; ======================================================================
  11
  12 ;; This file is part of GNU Emacs.
  13
  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.
  18
  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.
  23
  24 ;; You should have received a copy of the GNU General Public License
  25 ;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
  26
  27 ;; ======================================================================
  28 ;;; Commentary:
  29
  30 ;; See newsticker.el
  31
  32 ;; ======================================================================
  33 ;;; Code:
  34
  35 (require 'newst-ticker)
  36 (require 'newst-reader)
  37 (require 'derived)
  38 (require 'xml)
  39
  40 ;; Silence warnings
  41 (defvar w3-mode-map)
  42 (defvar w3m-minor-mode-map)
  43
  44 ;; ======================================================================
  45 ;;; Customization
  46 ;; ======================================================================
  47 (defgroup newsticker-plainview nil
  48   "Settings for the simple plain view reader.
  49 See also `newsticker-plainview-hooks'."
  50   :group 'newsticker-reader)
  51
  52
  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
  56 value effective."
  57   (if (or (not (boundp symbol))
  58           (equal (symbol-value symbol) value))
  59       (set symbol value)
  60     ;; something must have changed
  61     (set symbol value)
  62     (newsticker--buffer-set-uptodate nil)))
  63
  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
  67 value effective."
  68   (if (or (not (boundp symbol))
  69           (equal (symbol-value symbol) value))
  70       (set symbol value)
  71     ;; something must have changed
  72     (set symbol value)
  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")))
  78
  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
  86   order),
  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."
  90   :type '(choice
  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)
  96
  97 (defcustom newsticker-heading-format
  98   "%l
  99 %t %d %s"
 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."
 110   :type 'string
 111   :set 'newsticker--set-customvar-formatting
 112   :group 'newsticker-plainview)
 113
 114 (defcustom newsticker-item-format
 115   "%t %d"
 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."
 125   :type 'string
 126   :set 'newsticker--set-customvar-formatting
 127   :group 'newsticker-plainview)
 128
 129 (defcustom newsticker-desc-format
 130   "%d %c"
 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'."
 136   :type 'string
 137   :set 'newsticker--set-customvar-formatting
 138   :group 'newsticker-plainview)
 139
 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."
 149   :type 'string
 150   :set 'newsticker--set-customvar-formatting
 151   :group 'newsticker-plainview)
 152
 153
 154 ;; ======================================================================
 155 ;; faces
 156
 157 (defface newsticker-new-item-face '((t :weight bold))
 158   "Face for new news items."
 159   :group 'newsticker-faces)
 160
 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)
 167
 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)
 174
 175 (defface newsticker-obsolete-item-face
 176   '((t :weight bold :strike-through t))
 177   "Face for old news items."
 178   :group 'newsticker-faces)
 179
 180 (defface newsticker-date-face '((t :slant italic :height 0.8))
 181   "Face for newsticker dates."
 182   :group 'newsticker-faces)
 183
 184 (defface newsticker-statistics-face '((t :slant italic :height 0.8))
 185   "Face for newsticker dates."
 186   :group 'newsticker-faces)
 187
 188 (defface newsticker-default-face '((t))
 189   "Face for the description of news items."
 190   :group 'newsticker-faces)
 191
 192 (defcustom newsticker-hide-old-items-in-newsticker-buffer
 193   nil
 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."
 198   :type 'boolean
 199   :set 'newsticker--set-customvar-buffer
 200   :group 'newsticker-plainview)
 201
 202 (defcustom newsticker-show-descriptions-of-new-items
 203   t
 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."
 207   :type 'boolean
 208   :set 'newsticker--set-customvar-buffer
 209   :group 'newsticker-plainview)
 210
 211 (defcustom newsticker-show-all-news-elements
 212   nil
 213   "Show all news elements."
 214   :type 'boolean
 215   ;;:set 'newsticker--set-customvar
 216   :group 'newsticker-plainview)
 217
 218 ;; ======================================================================
 219 ;; hooks
 220 (defgroup newsticker-plainview-hooks nil
 221   "Settings for newsticker hooks which apply to plainview only."
 222   :group 'newsticker-hooks)
 223
 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.
 230
 231 The default value `newsticker--buffer-make-item-completely-visible'
 232 assures that the current item is always completely visible."
 233   :type 'hook
 234   :options '(newsticker--buffer-make-item-completely-visible)
 235   :group 'newsticker-plainview-hooks)
 236
 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.
 242
 243 The default value `newsticker--buffer-make-item-completely-visible'
 244 assures that the current feed is completely visible."
 245   :type 'hook
 246   :options '(newsticker--buffer-make-item-completely-visible)
 247   :group 'newsticker-plainview-hooks)
 248
 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.
 253
 254 The default value `newsticker-w3m-show-inline-images' loads inline
 255 images."
 256   :type 'hook
 257   :group 'newsticker-plainview-hooks)
 258
 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.
 265
 266 The default value `newsticker-w3m-show-inline-images' loads inline
 267 images."
 268   :type 'hook
 269   :group 'newsticker-plainview-hooks)
 270
 271 ;; ======================================================================
 272 ;;; Toolbar
 273 ;; ======================================================================
 274
 275 (defvar newsticker--plainview-tool-bar-map
 276   (if (featurep 'xemacs)
 277       nil
 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")
 338           tool-bar-map))))
 339
 340 ;; ======================================================================
 341 ;;; Newsticker mode
 342 ;; ======================================================================
 343
 344
 345 ;; newsticker menu
 346 (defvar newsticker-menu
 347   (let ((map (make-sparse-keymap "Newsticker")))
 348
 349     (define-key map [newsticker-browse-url]
 350       '("Browse URL for item at point" . newsticker-browse-url))
 351     (define-key map [newsticker-separator-1]
 352       '("--"))
 353     (define-key map [newsticker-buffer-update]
 354       '("Update buffer" . newsticker-buffer-update))
 355     (define-key map [newsticker-separator-2]
 356       '("--"))
 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]
 362       '("--"))
 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]
 375       '("--"))
 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))
 388     map))
 389
 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)
 406
 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)
 418     (define-key map "m"
 419       'newsticker-mark-all-items-at-point-as-read-and-redraw)
 420     (define-key map "o"
 421       'newsticker-mark-item-at-point-as-read)
 422     (define-key map "O"
 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)
 429
 430     (define-key map "i"
 431       'newsticker-mark-item-at-point-as-immortal)
 432
 433     (define-key map "xf"
 434       'newsticker-toggle-auto-narrow-to-feed)
 435     (define-key map "xi"
 436       'newsticker-toggle-auto-narrow-to-item)
 437
 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))
 443
 444     map))
 445
 446 (define-derived-mode newsticker-mode fundamental-mode
 447   "NewsTicker"
 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
 462         (list "-"
 463               'mode-line-mule-info
 464               'mode-line-modified
 465               'mode-line-frame-identification
 466               " Newsticker ("
 467               '(newsticker--buffer-uptodate-p
 468                 "up to date"
 469                 "NEED UPDATE")
 470               ") "
 471               '(:eval (format "[%d]" (length newsticker--process-ids)))
 472               " -- "
 473               '(:eval (newsticker--buffer-get-feed-title-at-point))
 474               ": "
 475               '(:eval (newsticker--buffer-get-item-title-at-point))
 476               " %-"))
 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))
 481
 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)
 490     map)
 491   "Key map for click-able headings in the newsticker buffer.")
 492
 493
 494 ;; ======================================================================
 495 ;;; User fun
 496 ;; ======================================================================
 497 ;;;###autoload
 498 (defun newsticker-plainview ()
 499   "Start newsticker plainview."
 500   (interactive)
 501   (newsticker-buffer-update t)
 502   (switch-to-buffer "*newsticker*"))
 503
 504 (defun newsticker-buffer-force-update ()
 505   "Update the newsticker buffer, even if not necessary."
 506   (interactive)
 507   (newsticker-buffer-update t))
 508
 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."
 513   (interactive)
 514   ;; bring cache data into proper order....
 515   (newsticker--cache-sort)
 516   ;; fill buffer
 517   (save-excursion
 518     (let ((buf (get-buffer "*newsticker*")))
 519       (if buf
 520           (switch-to-buffer buf)
 521         (switch-to-buffer (get-buffer-create "*newsticker*"))
 522         (newsticker--buffer-set-uptodate nil)))
 523    (when (or force
 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)
 529        (erase-buffer)
 530        (newsticker-mode)
 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)
 533        (auto-fill-mode -1)
 534
 535        (set-buffer-file-coding-system 'utf-8)
 536
 537        (if newsticker-use-full-width
 538            (set (make-local-variable 'fill-column) (1- (window-width))))
 539        (newsticker--buffer-insert-all-items)
 540
 541        ;; FIXME: needed for methods buffer in ecb
 542        ;; (set-visited-file-name "*newsticker*")
 543
 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))
 550        )
 551      (message ""))
 552    (newsticker--buffer-set-uptodate t)
 553    (run-hooks 'newsticker-buffer-change-hook)))
 554
 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."
 558   (interactive)
 559   ;; launch retrieval of news
 560   (let ((feed (get-text-property (point) 'feed)))
 561       (when feed
 562         (newsticker--debug-msg "Getting news for %s" (symbol-name feed))
 563         (newsticker-get-news (symbol-name feed)))))
 564
 565 (declare-function w3m-toggle-inline-image "ext:w3m" (&optional force no-cache))
 566
 567 (defun newsticker-w3m-show-inline-images ()
 568   "Show inline images in visible text ranges.
 569 In-line images in invisible text ranges are hidden.  This function
 570 calls `w3m-toggle-inline-image'.  It works only if
 571 `newsticker-html-renderer' is set to `w3m-region'."
 572   (interactive)
 573   (if (eq newsticker-html-renderer 'w3m-region)
 574       (let ((inhibit-read-only t))
 575         (save-excursion
 576           (save-restriction
 577             (widen)
 578             (goto-char (point-min))
 579             (let ((pos (point)))
 580               (while pos
 581                 (setq pos (next-single-property-change pos 'w3m-image))
 582                 (when pos
 583                   (goto-char pos)
 584                   (when (get-text-property pos 'w3m-image)
 585                     (let ((invis (newsticker--lists-intersect-p
 586                                   (get-text-property (1- (point))
 587                                                      'invisible)
 588                                   buffer-invisibility-spec)))
 589                       (unless  (car (get-text-property (1- (point))
 590                                                        'display))
 591                         (unless invis
 592                           (w3m-toggle-inline-image t)))))))))))))
 593
 594 ;; ======================================================================
 595 ;;; Keymap stuff
 596 ;; ======================================================================
 597 (defun newsticker-close-buffer ()
 598   "Close the newsticker buffer."
 599   (interactive)
 600   (newsticker--cache-update t)
 601   (bury-buffer))
 602
 603 (defun newsticker-next-new-item (&optional do-not-wrap-at-eob)
 604   "Go to next new news item.
 605 If no new item is found behind point, search is continued at
 606 beginning of buffer unless optional argument DO-NOT-WRAP-AT-EOB
 607 is non-nil."
 608   (interactive)
 609   (widen)
 610   (let ((go-ahead t))
 611     (while go-ahead
 612       (unless (newsticker--buffer-goto '(item) 'new)
 613         ;; found nothing -- wrap
 614         (unless do-not-wrap-at-eob
 615           (goto-char (point-min))
 616           (newsticker-next-new-item t))
 617         (setq go-ahead nil))
 618       (unless (newsticker--lists-intersect-p
 619                (get-text-property (point) 'invisible)
 620                buffer-invisibility-spec)
 621         ;; this item is invisible -- continue search
 622         (setq go-ahead nil))))
 623   (run-hooks 'newsticker-select-item-hook)
 624   (point))
 625
 626 (defun newsticker-previous-new-item (&optional do-not-wrap-at-bob)
 627   "Go to previous new news item.
 628 If no new item is found before point, search is continued at
 629 beginning of buffer unless optional argument DO-NOT-WRAP-AT-BOB
 630 is non-nil."
 631   (interactive)
 632   (widen)
 633   (let ((go-ahead t))
 634     (while go-ahead
 635       (unless (newsticker--buffer-goto '(item) 'new t)
 636         (unless do-not-wrap-at-bob
 637           (goto-char (point-max))
 638           (newsticker--buffer-goto '(item) 'new t)))
 639       (unless (newsticker--lists-intersect-p
 640                (get-text-property (point) 'invisible)
 641                     buffer-invisibility-spec)
 642         (setq go-ahead nil))))
 643   (run-hooks 'newsticker-select-item-hook)
 644   (point))
 645
 646 (defun newsticker-next-item (&optional do-not-wrap-at-eob)
 647   "Go to next news item.
 648 Return new buffer position.
 649 If no item is found below point, search is continued at beginning
 650 of buffer unless optional argument DO-NOT-WRAP-AT-EOB is
 651 non-nil."
 652   (interactive)
 653   (widen)
 654   (let ((go-ahead t)
 655         (search-list '(item)))
 656     (if newsticker--auto-narrow-to-item
 657         (setq search-list '(item feed)))
 658     (while go-ahead
 659       (unless (newsticker--buffer-goto search-list)
 660         ;; found nothing -- wrap
 661         (unless do-not-wrap-at-eob
 662           (goto-char (point-min)))
 663         (setq go-ahead nil))
 664       (unless (newsticker--lists-intersect-p
 665                (get-text-property (point) 'invisible)
 666                     buffer-invisibility-spec)
 667         (setq go-ahead nil))))
 668   (run-hooks 'newsticker-select-item-hook)
 669   (force-mode-line-update)
 670   (point))
 671
 672 (defun newsticker-next-item-same-feed ()
 673   "Go to next news item in the same feed.
 674 Return new buffer position.  If no item is found below point or if
 675 auto-narrow-to-item is enabled, nil is returned."
 676   (interactive)
 677   (if newsticker--auto-narrow-to-item
 678       nil
 679     (let ((go-ahead t)
 680           (current-pos (point))
 681           (end-of-feed (save-excursion (newsticker--buffer-end-of-feed))))
 682       (while go-ahead
 683         (unless (newsticker--buffer-goto '(item))
 684           (setq go-ahead nil))
 685         (unless (newsticker--lists-intersect-p
 686                  (get-text-property (point) 'invisible)
 687                  buffer-invisibility-spec)
 688           (setq go-ahead nil)))
 689       (if (and (> (point) current-pos)
 690                (< (point) end-of-feed))
 691           (point)
 692         (goto-char current-pos)
 693         nil))))
 694
 695 (defun newsticker-previous-item (&optional do-not-wrap-at-bob)
 696   "Go to previous news item.
 697 Return new buffer position.
 698 If no item is found before point, search is continued at
 699 beginning of buffer unless optional argument DO-NOT-WRAP-AT-BOB
 700 is non-nil."
 701   (interactive)
 702   (widen)
 703   (let ((go-ahead t)
 704         (search-list '(item)))
 705     (if newsticker--auto-narrow-to-item
 706         (setq search-list '(item feed)))
 707     (when (bobp)
 708       (unless do-not-wrap-at-bob
 709         (goto-char (point-max))))
 710     (while go-ahead
 711       (if (newsticker--buffer-goto search-list nil t)
 712           (unless (newsticker--lists-intersect-p
 713                    (get-text-property (point) 'invisible)
 714                    buffer-invisibility-spec)
 715             (setq go-ahead nil))
 716         (goto-char (point-min))
 717         (setq go-ahead nil))))
 718   (run-hooks 'newsticker-select-item-hook)
 719   (force-mode-line-update)
 720   (point))
 721
 722 (defun newsticker-next-feed ()
 723   "Go to next news feed.
 724 Return new buffer position."
 725   (interactive)
 726   (widen)
 727   (newsticker--buffer-goto '(feed))
 728   (run-hooks 'newsticker-select-feed-hook)
 729   (force-mode-line-update)
 730   (point))
 731
 732 (defun newsticker-previous-feed ()
 733   "Go to previous news feed.
 734 Return new buffer position."
 735   (interactive)
 736   (widen)
 737   (newsticker--buffer-goto '(feed) nil t)
 738   (run-hooks 'newsticker-select-feed-hook)
 739   (force-mode-line-update)
 740   (point))
 741
 742 (defun newsticker-mark-all-items-at-point-as-read-and-redraw ()
 743   "Mark all items as read and clear ticker contents."
 744   (interactive)
 745   (when (or newsticker--buffer-uptodate-p
 746             (y-or-n-p
 747              "Buffer is not up to date -- really mark items as read? "))
 748     (newsticker-mark-all-items-of-feed-as-read
 749      (get-text-property (point) 'feed))))
 750
 751 (defun newsticker-mark-all-items-of-feed-as-read (feed)
 752   "Mark all items of FEED as read, clear ticker, and redraw buffer."
 753   (when feed
 754     (let ((pos (point)))
 755       (message "Marking all items as read for %s" (symbol-name feed))
 756       (newsticker--cache-replace-age newsticker--cache feed 'new 'old)
 757       (newsticker--cache-replace-age newsticker--cache feed 'obsolete
 758                                      'old)
 759       (newsticker--cache-update)
 760       (newsticker--buffer-set-uptodate nil)
 761       (newsticker--ticker-text-setup)
 762       (newsticker-buffer-update)
 763       ;; Go back to where we came from.
 764       (goto-char pos)
 765       (end-of-line)
 766       (newsticker--buffer-goto '(feed) nil t))))
 767
 768 (defun newsticker-mark-all-items-at-point-as-read ()
 769   "Mark all items as read and clear ticker contents."
 770   (interactive)
 771   (when (or newsticker--buffer-uptodate-p
 772             (y-or-n-p
 773              "Buffer is not up to date -- really mark items as read? "))
 774     (newsticker--do-mark-item-at-point-as-read t)
 775     (while (newsticker-next-item-same-feed)
 776       (newsticker--do-mark-item-at-point-as-read t))
 777     (newsticker-next-item t)))
 778
 779 (defun newsticker-mark-item-at-point-as-read (&optional respect-immortality)
 780   "Mark item at point as read and move to next item.
 781 If optional argument RESPECT-IMMORTALITY is not nil immortal items do
 782 not get changed."
 783   (interactive)
 784   (when (or newsticker--buffer-uptodate-p
 785             (y-or-n-p
 786              "Buffer is not up to date -- really mark this item as read? "))
 787     (newsticker--do-mark-item-at-point-as-read respect-immortality)
 788     ;; move forward
 789     (newsticker-next-item t)))
 790
 791 (defun newsticker--do-mark-item-at-point-as-read (&optional respect-immortality)
 792   "Mark item at point as read.
 793 If optional argument RESPECT-IMMORTALITY is not nil immortal items do
 794 not get changed."
 795   (let ((feed (get-text-property (point) 'feed)))
 796     (when feed
 797       (save-excursion
 798         (newsticker--buffer-beginning-of-item)
 799         (let ((inhibit-read-only t)
 800               (age (get-text-property (point) 'nt-age))
 801               (title (get-text-property (point) 'nt-title))
 802               (guid (get-text-property (point) 'nt-guid))
 803               (nt-desc (get-text-property (point) 'nt-desc))
 804               (pos (save-excursion (newsticker--buffer-end-of-item)))
 805               item)
 806           (when (or (eq age 'new)
 807                     (eq age 'obsolete)
 808                     (and (eq age 'immortal)
 809                          (not respect-immortality)))
 810             ;; find item
 811             (setq item (newsticker--cache-contains newsticker--cache
 812                                                    feed title nt-desc
 813                                                    nil nil guid))
 814             ;; mark as old
 815             (when item
 816               (setcar (nthcdr 4 item) 'old)
 817               (newsticker--do-forget-preformatted item))
 818             ;; clean up ticker
 819             (if (or (and (eq age 'new)
 820                          newsticker-hide-immortal-items-in-echo-area)
 821                     (and (memq age '(old immortal))
 822                          (not
 823                           (eq newsticker-hide-old-items-in-newsticker-buffer
 824                               newsticker-hide-immortal-items-in-echo-area))))
 825                 (newsticker--ticker-text-remove feed title))
 826             ;; set faces etc.
 827             (save-excursion
 828               (save-restriction
 829                 (widen)
 830                 (put-text-property (point) pos 'nt-age 'old)
 831                 (newsticker--buffer-set-faces (point) pos)))
 832             (set-buffer-modified-p nil)))))))
 833
 834 (defun newsticker-mark-item-at-point-as-immortal ()
 835   "Mark item at point as read."
 836   (interactive)
 837   (when (or newsticker--buffer-uptodate-p
 838             (y-or-n-p
 839              "Buffer is not up to date -- really mark this item as read? "))
 840     (let ((feed (get-text-property (point) 'feed))
 841           (item nil))
 842       (when feed
 843         (save-excursion
 844           (newsticker--buffer-beginning-of-item)
 845           (let ((inhibit-read-only t)
 846                 (oldage (get-text-property (point) 'nt-age))
 847                 (title (get-text-property (point) 'nt-title))
 848                 (guid (get-text-property (point) 'nt-guid))
 849                 (pos  (save-excursion (newsticker--buffer-end-of-item))))
 850             (let ((newage 'immortal))
 851               (if (eq oldage 'immortal)
 852                   (setq newage 'old))
 853               (setq item (newsticker--cache-contains newsticker--cache
 854                                                      feed title nil nil nil
 855                                                      guid))
 856               ;; change age
 857               (when item
 858                 (setcar (nthcdr 4 item) newage)
 859                 (newsticker--do-forget-preformatted item))
 860               (if (or (and (eq newage 'immortal)
 861                            newsticker-hide-immortal-items-in-echo-area)
 862                       (and (eq newage 'obsolete)
 863                            newsticker-hide-obsolete-items-in-echo-area)
 864                       (and (eq oldage 'immortal)
 865                            (not
 866                             (eq newsticker-hide-old-items-in-newsticker-buffer
 867                                 newsticker-hide-immortal-items-in-echo-area))))
 868                   (newsticker--ticker-text-remove feed title)
 869                 (newsticker--ticker-text-setup))
 870               (save-excursion
 871                 (save-restriction
 872                   (widen)
 873                   (put-text-property (point) pos 'nt-age newage)
 874                   (if (eq newage 'immortal)
 875                       (put-text-property (point) pos 'nt-age 'immortal)
 876                     (put-text-property (point) pos 'nt-age 'old))
 877                   (newsticker--buffer-set-faces (point) pos))))))
 878           (if item
 879             (newsticker-next-item t))))))
 880
 881 (defun newsticker-mark-all-items-as-read ()
 882   "Mark all items as read and clear ticker contents."
 883   (interactive)
 884   (when (or newsticker--buffer-uptodate-p
 885             (y-or-n-p
 886              "Buffer is not up to date -- really mark items as read? "))
 887     (newsticker--cache-replace-age newsticker--cache 'any 'new 'old)
 888     (newsticker--buffer-set-uptodate nil)
 889     (newsticker--ticker-text-setup)
 890     (newsticker--cache-update)
 891     (newsticker-buffer-update)))
 892
 893 (defun newsticker-hide-extra ()
 894   "Hide the extra elements of items."
 895   (interactive)
 896   (newsticker--buffer-hideshow 'extra nil)
 897   (newsticker--buffer-redraw))
 898
 899 (defun newsticker-show-extra ()
 900   "Show the extra elements of items."
 901   (interactive)
 902   (newsticker--buffer-hideshow 'extra t)
 903   (newsticker--buffer-redraw))
 904
 905 (defun newsticker-hide-old-item-desc ()
 906   "Hide the description of old items."
 907   (interactive)
 908   (newsticker--buffer-hideshow 'desc-old nil)
 909   (newsticker--buffer-redraw))
 910
 911 (defun newsticker-show-old-item-desc ()
 912   "Show the description of old items."
 913   (interactive)
 914   (newsticker--buffer-hideshow 'item-old t)
 915   (newsticker--buffer-hideshow 'desc-old t)
 916   (newsticker--buffer-redraw))
 917
 918 (defun newsticker-hide-new-item-desc ()
 919   "Hide the description of new items."
 920   (interactive)
 921   (newsticker--buffer-hideshow 'desc-new nil)
 922   (newsticker--buffer-hideshow 'desc-immortal nil)
 923   (newsticker--buffer-hideshow 'desc-obsolete nil)
 924   (newsticker--buffer-redraw))
 925
 926 (defun newsticker-show-new-item-desc ()
 927   "Show the description of new items."
 928   (interactive)
 929   (newsticker--buffer-hideshow 'desc-new t)
 930   (newsticker--buffer-hideshow 'desc-immortal t)
 931   (newsticker--buffer-hideshow 'desc-obsolete t)
 932   (newsticker--buffer-redraw))
 933
 934 (defun newsticker-hide-feed-desc ()
 935   "Hide the description of feeds."
 936   (interactive)
 937   (newsticker--buffer-hideshow 'desc-feed nil)
 938   (newsticker--buffer-redraw))
 939
 940 (defun newsticker-show-feed-desc ()
 941   "Show the description of old items."
 942   (interactive)
 943   (newsticker--buffer-hideshow 'desc-feed t)
 944   (newsticker--buffer-redraw))
 945
 946 (defun newsticker-hide-all-desc ()
 947   "Hide the descriptions of feeds and all items."
 948   (interactive)
 949   (newsticker--buffer-hideshow 'desc-feed nil)
 950   (newsticker--buffer-hideshow 'desc-immortal nil)
 951   (newsticker--buffer-hideshow 'desc-obsolete nil)
 952   (newsticker--buffer-hideshow 'desc-new  nil)
 953   (newsticker--buffer-hideshow 'desc-old  nil)
 954   (newsticker--buffer-redraw))
 955
 956 (defun newsticker-show-all-desc ()
 957   "Show the descriptions of feeds and all items."
 958   (interactive)
 959   (newsticker--buffer-hideshow 'desc-feed t)
 960   (newsticker--buffer-hideshow 'desc-immortal  t)
 961   (newsticker--buffer-hideshow 'desc-obsolete  t)
 962   (newsticker--buffer-hideshow 'desc-new  t)
 963   (newsticker--buffer-hideshow 'desc-old  t)
 964   (newsticker--buffer-redraw))
 965
 966 (defun newsticker-hide-old-items ()
 967   "Hide old items."
 968   (interactive)
 969   (newsticker--buffer-hideshow 'desc-old nil)
 970   (newsticker--buffer-hideshow 'item-old nil)
 971   (newsticker--buffer-redraw))
 972
 973 (defun newsticker-show-old-items ()
 974   "Show old items."
 975   (interactive)
 976   (newsticker--buffer-hideshow 'item-old t)
 977   (newsticker--buffer-redraw))
 978
 979 (defun newsticker-hide-entry ()
 980   "Hide description of entry at point."
 981   (interactive)
 982   (save-excursion
 983     (let* (pos1 pos2
 984                 (inhibit-read-only t)
 985                 inv-prop org-inv-prop
 986                 is-invisible)
 987       (newsticker--buffer-beginning-of-item)
 988       (newsticker--buffer-goto '(desc))
 989       (setq pos1 (max (point-min) (1- (point))))
 990       (newsticker--buffer-goto '(extra feed item nil))
 991       (setq pos2 (max (point-min) (1- (point))))
 992       (setq inv-prop (get-text-property pos1 'invisible))
 993       (setq org-inv-prop (get-text-property pos1 'org-invisible))
 994       (cond ((eq inv-prop t)
 995              ;; do nothing
 996              )
 997             ((eq org-inv-prop nil)
 998              (add-text-properties pos1 pos2
 999                                   (list 'invisible (list t)
1000                                         'org-invisible inv-prop)))
1001             (t
1002              ;; toggle
1003              (add-text-properties pos1 pos2
1004                                   (list 'invisible org-inv-prop))
1005              (remove-text-properties pos1 pos2 '(org-invisible))))))
1006   (newsticker--buffer-redraw))
1007
1008 (defun newsticker-show-entry ()
1009   "Show description of entry at point."
1010   (interactive)
1011   (save-excursion
1012     (let* (pos1 pos2
1013                 (inhibit-read-only t)
1014                 inv-prop org-inv-prop
1015                 is-invisible)
1016       (newsticker--buffer-beginning-of-item)
1017       (newsticker--buffer-goto '(desc))
1018       (setq pos1 (max (point-min) (1- (point))))
1019       (newsticker--buffer-goto '(extra feed item))
1020       (setq pos2 (max (point-min) (1- (point))))
1021       (setq inv-prop (get-text-property pos1 'invisible))
1022       (setq org-inv-prop (get-text-property pos1 'org-invisible))
1023       (cond ((eq org-inv-prop nil)
1024              (add-text-properties pos1 pos2
1025                                   (list 'invisible nil
1026                                         'org-invisible inv-prop)))
1027             (t
1028              ;; toggle
1029              (add-text-properties pos1 pos2
1030                                   (list 'invisible org-inv-prop))
1031              (remove-text-properties pos1 pos2 '(org-invisible))))))
1032   (newsticker--buffer-redraw))
1033
1034 (defun newsticker-toggle-auto-narrow-to-feed ()
1035   "Toggle narrowing to current news feed.
1036 If auto-narrowing is active, only news item of the current feed
1037 are visible."
1038   (interactive)
1039   (newsticker-set-auto-narrow-to-feed
1040    (not newsticker--auto-narrow-to-feed)))
1041
1042 (defun newsticker-set-auto-narrow-to-feed (value)
1043   "Turn narrowing to current news feed on or off.
1044 If VALUE is nil, auto-narrowing is turned off, otherwise it is turned on."
1045   (interactive)
1046   (setq newsticker--auto-narrow-to-item nil)
1047   (setq newsticker--auto-narrow-to-feed value)
1048   (widen)
1049   (newsticker--buffer-make-item-completely-visible)
1050   (run-hooks 'newsticker-narrow-hook))
1051
1052 (defun newsticker-toggle-auto-narrow-to-item ()
1053   "Toggle narrowing to current news item.
1054 If auto-narrowing is active, only one item of the current feed
1055 is visible."
1056   (interactive)
1057   (newsticker-set-auto-narrow-to-item
1058    (not newsticker--auto-narrow-to-item)))
1059
1060 (defun newsticker-set-auto-narrow-to-item (value)
1061   "Turn narrowing to current news item on or off.
1062 If VALUE is nil, auto-narrowing is turned off, otherwise it is turned on."
1063   (interactive)
1064   (setq newsticker--auto-narrow-to-feed nil)
1065   (setq newsticker--auto-narrow-to-item value)
1066   (widen)
1067   (newsticker--buffer-make-item-completely-visible)
1068   (run-hooks 'newsticker-narrow-hook))
1069
1070 (defun newsticker-next-feed-available-p ()
1071   "Return t if position is before last feed, nil otherwise."
1072   (save-excursion
1073     (let ((p (point)))
1074       (newsticker--buffer-goto '(feed))
1075       (not (= p (point))))))
1076
1077 (defun newsticker-previous-feed-available-p ()
1078   "Return t if position is behind first feed, nil otherwise."
1079   (save-excursion
1080     (let ((p (point)))
1081       (newsticker--buffer-goto '(feed) nil t)
1082       (not (= p (point))))))
1083
1084 (defun newsticker-next-item-available-p ()
1085   "Return t if position is before last feed, nil otherwise."
1086   (save-excursion
1087     (catch 'result
1088       (while (< (point) (point-max))
1089         (unless (newsticker--buffer-goto '(item))
1090           (throw 'result nil))
1091         (unless (newsticker--lists-intersect-p
1092                  (get-text-property (point) 'invisible)
1093                  buffer-invisibility-spec)
1094           (throw 'result t))))))
1095
1096 (defun newsticker-previous-item-available-p ()
1097   "Return t if position is behind first item, nil otherwise."
1098   (save-excursion
1099     (catch 'result
1100       (while (> (point) (point-min))
1101         (unless (newsticker--buffer-goto '(item) nil t)
1102           (throw 'result nil))
1103         (unless (newsticker--lists-intersect-p
1104                  (get-text-property (point) 'invisible)
1105                  buffer-invisibility-spec)
1106           (throw 'result t))))))
1107
1108 (defun newsticker-item-not-old-p ()
1109   "Return t if there is an item at point which is not old, nil otherwise."
1110     (when (get-text-property (point) 'feed)
1111       (save-excursion
1112         (newsticker--buffer-beginning-of-item)
1113         (let ((age (get-text-property (point) 'nt-age)))
1114           (and (memq  age '(new immortal obsolete)) t)))))
1115
1116 (defun newsticker-item-not-immortal-p ()
1117   "Return t if there is an item at point which is not immortal, nil otherwise."
1118     (when (get-text-property (point) 'feed)
1119       (save-excursion
1120         (newsticker--buffer-beginning-of-item)
1121         (let ((age (get-text-property (point) 'nt-age)))
1122           (and (memq  age '(new old obsolete)) t)))))
1123
1124 ;; ======================================================================
1125 ;;; Imenu stuff
1126 ;; ======================================================================
1127 (defun newsticker--imenu-create-index ()
1128   "Scan newsticker buffer and return an index for imenu."
1129   (save-excursion
1130     (goto-char (point-min))
1131     (let ((index-alist nil)
1132           (feed-list nil)
1133           (go-ahead t))
1134       (while go-ahead
1135         (let ((type  (get-text-property (point) 'nt-type))
1136               (title (get-text-property (point) 'nt-title)))
1137           (cond ((eq type 'feed)
1138                  ;; we're on a feed heading
1139                  (when feed-list
1140                    (if index-alist
1141                        (nconc index-alist (list feed-list))
1142                      (setq index-alist (list feed-list))))
1143                  (setq feed-list (list title)))
1144                 (t
1145                  (nconc feed-list
1146                         (list (cons title (point)))))))
1147         (setq go-ahead (newsticker--buffer-goto '(item feed))))
1148       (if index-alist
1149           (nconc index-alist (list feed-list))
1150         (setq index-alist (list feed-list)))
1151       index-alist)))
1152
1153 (defun newsticker--imenu-goto (name pos &rest args)
1154   "Go to item NAME at position POS and show item.
1155 ARGS are ignored."
1156   (goto-char pos)
1157   ;; show headline
1158   (newsticker--buffer-goto '(desc extra feed item))
1159   (let* ((inhibit-read-only t)
1160          (pos1 (max (point-min) (1- pos)))
1161          (pos2 (max pos1 (1- (point))))
1162          (inv-prop (get-text-property pos 'invisible))
1163          (org-inv-prop (get-text-property pos 'org-invisible)))
1164     (when (eq org-inv-prop nil)
1165       (add-text-properties pos1 pos2 (list 'invisible nil
1166                                           'org-invisible inv-prop))))
1167   ;; show desc
1168   (newsticker-show-entry))
1169
1170 ;; ======================================================================
1171 ;;; Buffer stuff
1172 ;; ======================================================================
1173 (defun newsticker--buffer-set-uptodate (value)
1174   "Set the uptodate-status of the newsticker buffer to VALUE.
1175 The mode-line is changed accordingly."
1176   (setq newsticker--buffer-uptodate-p value)
1177   (let ((b (get-buffer "*newsticker*")))
1178     (when b
1179       (with-current-buffer b
1180         (setq mode-name (if value
1181                             "Newsticker -- up to date -- "
1182                           "Newsticker -- NEED UPDATE -- ")))
1183       (force-mode-line-update 0))))
1184
1185 (defun newsticker--buffer-redraw ()
1186   "Redraw the newsticker window."
1187   (if (fboundp 'force-window-update)
1188       (force-window-update (current-buffer))
1189     (redraw-frame))
1190   (run-hooks 'newsticker-buffer-change-hook)
1191   (sit-for 0))
1192
1193 (defun newsticker--buffer-insert-all-items ()
1194   "Insert all cached newsticker items into the current buffer.
1195 Keeps order of feeds as given in `newsticker-url-list' and
1196 `newsticker-url-list-defaults'."
1197   (goto-char (point-min))
1198   (mapc (lambda (url-item)
1199           (let* ((feed-name (car url-item))
1200                  (feed-name-symbol (intern feed-name))
1201                  (feed (assoc feed-name-symbol newsticker--cache))
1202                  (items (cdr feed))
1203                  (pos (point)))
1204             (when feed
1205               ;; insert the feed description
1206               (mapc (lambda (item)
1207                       (when (eq (newsticker--age item) 'feed)
1208                         (newsticker--buffer-insert-item item
1209                                                         feed-name-symbol)))
1210                     items)
1211               ;;insert the items
1212               (mapc (lambda (item)
1213                       (if (memq (newsticker--age item) '(new immortal old
1214                                                              obsolete))
1215                           (newsticker--buffer-insert-item item
1216                                                           feed-name-symbol)))
1217                     items)
1218               (put-text-property pos (point) 'feed (car feed))
1219
1220               ;; insert empty line between feeds
1221               (let ((p (point)))
1222                 (insert "\n")
1223                 (put-text-property p (point) 'hard t)))))
1224         (append newsticker-url-list newsticker-url-list-defaults))
1225
1226   (newsticker--buffer-set-faces (point-min) (point-max))
1227   (newsticker--buffer-set-invisibility (point-min) (point-max))
1228   (goto-char (point-min)))
1229
1230 (defun newsticker--buffer-insert-item (item &optional feed-name-symbol)
1231   "Insert a news item in the current buffer.
1232 Insert a formatted representation of the ITEM.  The optional parameter
1233 FEED-NAME-SYMBOL determines how the item is formatted and whether the
1234 item-retrieval time is added as well."
1235   ;; insert headline
1236   (if (eq (newsticker--age item) 'feed)
1237       (newsticker--buffer-do-insert-text item 'feed feed-name-symbol)
1238     (newsticker--buffer-do-insert-text item 'item feed-name-symbol))
1239   ;; insert the description
1240   (newsticker--buffer-do-insert-text item 'desc feed-name-symbol))
1241
1242 (defun newsticker--buffer-do-insert-text (item type feed-name-symbol)
1243   "Actually insert contents of news item, format it, render it and all that.
1244 ITEM is a news item, TYPE tells which part of the item shall be inserted,
1245 FEED-NAME-SYMBOL tells to which feed this item belongs."
1246   (let* ((pos (point))
1247          (format newsticker-desc-format)
1248          (pos-date-start nil)
1249          (pos-date-end nil)
1250          (pos-stat-start nil)
1251          (pos-stat-end nil)
1252          (pos-text-start nil)
1253          (pos-text-end nil)
1254          (pos-extra-start nil)
1255          (pos-extra-end nil)
1256          (pos-enclosure-start nil)
1257          (pos-enclosure-end nil)
1258          (age (newsticker--age item))
1259          (preformatted-contents (newsticker--preformatted-contents item))
1260          (preformatted-title (newsticker--preformatted-title item)))
1261     (cond ((and preformatted-contents
1262                 (not (eq (aref preformatted-contents 0) ?\n));; we must
1263                                                        ;; NOT have a line
1264                                                        ;; break!
1265                 (eq type 'desc))
1266            (insert preformatted-contents))
1267           ((and preformatted-title
1268                 (not (eq (aref preformatted-title 0) ?\n));; we must NOT have a
1269                                                     ;; line break!
1270                 (eq type 'item))
1271            (insert preformatted-title))
1272           (t
1273            ;; item was not formatted before.
1274            ;; Let's go.
1275            (if (eq type 'item)
1276                (setq format newsticker-item-format)
1277              (if (eq type 'feed)
1278                  (setq format newsticker-heading-format)))
1279
1280            (while (> (length format) 0)
1281              (let ((prefix (if (> (length format) 1)
1282                                (substring format 0 2)
1283                              "")))
1284                (cond ((string= "%c" prefix)
1285                       ;; contents
1286                       (when (newsticker--desc item)
1287                         (setq pos-text-start (point-marker))
1288                         (insert (newsticker--desc item))
1289                         (setq pos-text-end (point-marker)))
1290                       (setq format (substring format 2)))
1291                      ((string= "%d" prefix)
1292                       ;; date
1293                       (setq pos-date-start (point-marker))
1294                       (if (newsticker--time item)
1295                           (insert (format-time-string newsticker-date-format
1296                                                       (newsticker--time item))))
1297                       (setq pos-date-end (point-marker))
1298                       (setq format (substring format 2)))
1299                      ((string= "%l" prefix)
1300                       ;; logo
1301                       (let ((disabled (cond ((eq (newsticker--age item) 'feed)
1302                                              (= (newsticker--stat-num-items
1303                                                  feed-name-symbol 'new) 0))
1304                                             (t
1305                                              (not (eq (newsticker--age item)
1306                                                       'new))))))
1307                         (let ((img (newsticker--image-read feed-name-symbol
1308                                                            disabled)))
1309                           (when img
1310                             (newsticker--insert-image img (car item)))))
1311                       (setq format (substring format 2)))
1312                      ((string= "%L" prefix)
1313                       ;; logo or title
1314                       (let ((disabled (cond ((eq (newsticker--age item) 'feed)
1315                                              (= (newsticker--stat-num-items
1316                                                  feed-name-symbol 'new) 0))
1317                                             (t
1318                                              (not (eq (newsticker--age item)
1319                                                       'new))))))
1320                         (let ((img (newsticker--image-read feed-name-symbol
1321                                                            disabled)))
1322                           (if img
1323                               (newsticker--insert-image img (car item))
1324                             (when (car item)
1325                               (setq pos-text-start (point-marker))
1326                               (if (eq (newsticker--age item) 'feed)
1327                                   (insert (newsticker--title item))
1328                                 ;; FIXME: This is not the "real" title!
1329                                 (insert (format "%s"
1330                                                 (car (newsticker--cache-get-feed
1331                                                       feed-name-symbol)))))
1332                               (setq pos-text-end (point-marker))))))
1333                       (setq format (substring format 2)))
1334                      ((string= "%s" prefix)
1335                       ;; statistics
1336                       (setq pos-stat-start (point-marker))
1337                       (if (eq (newsticker--age item) 'feed)
1338                           (insert (newsticker--buffer-statistics
1339                                    feed-name-symbol)))
1340                       (setq pos-stat-end (point-marker))
1341                       (setq format (substring format 2)))
1342                      ((string= "%t" prefix)
1343                       ;; title
1344                       (when (car item)
1345                         (setq pos-text-start (point-marker))
1346                         (insert (car item))
1347                         (setq pos-text-end (point-marker)))
1348                       (setq format (substring format 2)))
1349                      ((string-match "%." prefix)
1350                       ;; unknown specifier!
1351                       (insert prefix)
1352                       (setq format (substring format 2)))
1353                      ((string-match "^\\([^%]*\\)\\(.*\\)" format) ;; FIXME!
1354                       ;; everything else
1355                       (let ((p (point)))
1356                         (insert (substring format
1357                                            (match-beginning 1) (match-end 1)))
1358                         ;; in case that the format string contained newlines
1359                         (put-text-property p (point) 'hard t))
1360                       (setq format (substring format (match-beginning 2)))))))
1361
1362            ;; decode HTML if possible...
1363            (let ((is-rendered-HTML nil))
1364              (when (and newsticker-html-renderer pos-text-start pos-text-end)
1365                (condition-case error-data
1366                    (save-excursion
1367                      ;; check whether it is necessary to call html renderer
1368                      ;; (regexp inspired by htmlr.el)
1369                      (goto-char pos-text-start)
1370                      (when (re-search-forward
1371                             "</?[A-Za-z1-6]*\\|&#?[A-Za-z0-9]+;" pos-text-end t)
1372                        ;; (message "%s" (newsticker--title item))
1373                        (let ((w3m-fill-column (if newsticker-use-full-width
1374                                                   -1 fill-column))
1375                              (w3-maximum-line-length
1376                               (if newsticker-use-full-width nil fill-column)))
1377                          (save-excursion
1378                            (funcall newsticker-html-renderer pos-text-start
1379                                     pos-text-end)))
1380                        (cond ((eq newsticker-html-renderer 'w3m-region)
1381                               (add-text-properties pos (point-max)
1382                                                    (list 'keymap
1383                                                          w3m-minor-mode-map)))
1384                              ((eq newsticker-html-renderer 'w3-region)
1385                               (add-text-properties pos (point-max)
1386                                                    (list 'keymap w3-mode-map))))
1387                        (setq is-rendered-HTML t)))
1388                  (error
1389                   (message "Error: HTML rendering failed: %s, %s"
1390                            (car error-data) (cdr error-data)))))
1391              ;; After html rendering there might be chunks of blank
1392              ;; characters between rendered text and date, statistics or
1393              ;; whatever.  Remove it
1394              (when (and (eq type 'item) is-rendered-HTML)
1395                (goto-char pos)
1396                (while (re-search-forward "[ \t]*\n[ \t]*" nil t)
1397                  (replace-match " " nil nil))
1398                (goto-char (point-max)))
1399              (when (and newsticker-justification
1400                         (memq type '(item desc))
1401                         (not is-rendered-HTML))
1402                (condition-case nil
1403                    (let ((use-hard-newlines t))
1404                      (fill-region pos (point-max) newsticker-justification))
1405                  (error nil))))
1406
1407            ;; remove leading and trailing newlines
1408            (goto-char pos)
1409            (unless (= 0 (skip-chars-forward " \t\r\n"))
1410              (delete-region pos (point)))
1411            (goto-char (point-max))
1412            (let ((end (point)))
1413              (unless (= 0 (skip-chars-backward " \t\r\n" (1+ pos)))
1414                (delete-region (point) end)))
1415            (goto-char (point-max))
1416            ;; closing newline
1417            (unless nil ;;(eq pos (point))
1418              (insert "\n")
1419              (put-text-property (1- (point)) (point) 'hard t))
1420
1421            ;; insert enclosure element
1422            (when (eq type 'desc)
1423              (setq pos-enclosure-start (point))
1424              (newsticker--insert-enclosure item newsticker--url-keymap)
1425              (setq pos-enclosure-end (point)))
1426
1427            ;; show extra elements
1428            (when (eq type 'desc)
1429              (goto-char (point-max))
1430              (setq pos-extra-start (point))
1431              (newsticker--print-extra-elements item newsticker--url-keymap)
1432              (setq pos-extra-end (point)))
1433
1434            ;; text properties
1435            (when (memq type '(feed item))
1436              (add-text-properties pos (1- (point))
1437                                   (list 'mouse-face 'highlight
1438                                         'nt-link (newsticker--link item)
1439                                         'help-echo
1440                                         (format "mouse-2: visit item (%s)"
1441                                                 (newsticker--link item))
1442                                         'keymap newsticker--url-keymap))
1443              (add-text-properties pos (point)
1444                                   (list 'nt-title (newsticker--title item)
1445                                         'nt-desc (newsticker--desc item))))
1446
1447            (add-text-properties pos (point)
1448                                 (list 'nt-type type
1449                                       'nt-face type
1450                                       'nt-age  age
1451                                       'nt-guid (newsticker--guid item)))
1452            (when (and pos-date-start pos-date-end)
1453              (put-text-property pos-date-start pos-date-end 'nt-face 'date))
1454            (when (and pos-stat-start pos-stat-end)
1455              (put-text-property pos-stat-start pos-stat-end 'nt-face 'stat))
1456            (when (and pos-extra-start pos-extra-end)
1457              (put-text-property pos-extra-start pos-extra-end
1458                                 'nt-face 'extra)
1459              (put-text-property pos-extra-start pos-extra-end
1460                                 'nt-type 'extra))
1461            (when (and pos-enclosure-start pos-enclosure-end
1462                       (> pos-enclosure-end pos-enclosure-start))
1463              (put-text-property pos-enclosure-start (1- pos-enclosure-end)
1464                                 'nt-face 'enclosure))
1465
1466            ;; left margin
1467            ;;(unless (memq type '(feed item))
1468            ;;(set-left-margin pos (1- (point)) 1))
1469
1470            ;; save rendered stuff
1471            (cond ((eq type 'desc)
1472                   ;; preformatted contents
1473                   (newsticker--cache-set-preformatted-contents
1474                    item (buffer-substring pos (point))))
1475                   ((eq type 'item)
1476                    ;; preformatted title
1477                    (newsticker--cache-set-preformatted-title
1478                     item (buffer-substring pos (point)))))))))
1479
1480 (defun newsticker--buffer-statistics (feed-name-symbol)
1481   "Return a statistic string for the feed given by FEED-NAME-SYMBOL.
1482 See `newsticker-statistics-format'."
1483   (let ((case-fold-search nil))
1484     (replace-regexp-in-string
1485      "%a"
1486      (format "%d" (newsticker--stat-num-items feed-name-symbol))
1487      (replace-regexp-in-string
1488       "%i"
1489       (format "%d" (newsticker--stat-num-items feed-name-symbol 'immortal))
1490       (replace-regexp-in-string
1491        "%n"
1492        (format "%d" (newsticker--stat-num-items feed-name-symbol 'new))
1493        (replace-regexp-in-string
1494         "%o"
1495         (format "%d" (newsticker--stat-num-items feed-name-symbol 'old))
1496         (replace-regexp-in-string
1497          "%O"
1498          (format "%d" (newsticker--stat-num-items feed-name-symbol 'obsolete))
1499          newsticker-statistics-format)))))))
1500
1501 (defun newsticker--buffer-set-faces (start end)
1502   "Add face properties according to mark property.
1503 Scans the buffer between START and END."
1504   (save-excursion
1505     (put-text-property start end 'face 'newsticker-default-face)
1506     (goto-char start)
1507     (let ((pos1 start)
1508           (pos2 1)
1509           (nt-face (get-text-property start 'nt-face))
1510           (nt-age (get-text-property start 'nt-age)))
1511       (when nt-face
1512         (setq pos2 (next-single-property-change (point) 'nt-face))
1513         (newsticker--set-face-properties pos1 pos2 nt-face nt-age)
1514         (setq nt-face (get-text-property pos2 'nt-face))
1515         (setq pos1 pos2))
1516       (while (and (setq pos2 (next-single-property-change pos1 'nt-face))
1517                   (<= pos2 end)
1518                   (> pos2 pos1))
1519         (newsticker--set-face-properties pos1 pos2 nt-face nt-age)
1520         (setq nt-face (get-text-property pos2 'nt-face))
1521         (setq nt-age (get-text-property pos2 'nt-age))
1522         (setq pos1 pos2)))))
1523
1524 (defun newsticker--buffer-set-invisibility (start end)
1525   "Add invisibility properties according to nt-type property.
1526 Scans the buffer between START and END.  Sets the `invisible'
1527 property to (<nt-type>-<nt-age> <nt-type> <nt-age>)."
1528   (save-excursion
1529     ;; reset invisibility settings
1530     (put-text-property start end 'invisible nil)
1531     ;; let's go
1532     (goto-char start)
1533     (let ((pos1 start)
1534           (pos2 1)
1535           (nt-type (get-text-property start 'nt-type))
1536           (nt-age (get-text-property start 'nt-age)))
1537       (when nt-type
1538         (setq pos2 (next-single-property-change (point) 'nt-type))
1539         (put-text-property (max (point-min) pos1) (1- pos2)
1540                            'invisible
1541                            (list (intern
1542                                   (concat
1543                                    (symbol-name
1544                                     (if (eq nt-type 'extra) 'desc nt-type))
1545                                    "-"
1546                                    (symbol-name nt-age)))
1547                                  nt-type
1548                                  nt-age))
1549         (setq nt-type (get-text-property pos2 'nt-type))
1550         (setq pos1 pos2))
1551       (while (and (setq pos2 (next-single-property-change pos1 'nt-type))
1552                   (<= pos2 end)
1553                   (> pos2 pos1))
1554         ;; must shift one char to the left in order to handle invisible
1555         ;; newlines, motion in invisible text areas and all that correctly
1556         (put-text-property (1- pos1) (1- pos2)
1557                            'invisible
1558                            (list (intern
1559                                   (concat
1560                                    (symbol-name
1561                                     (if (eq nt-type 'extra) 'desc nt-type))
1562                                    "-"
1563                                    (symbol-name nt-age)))
1564                                  nt-type
1565                                  nt-age))
1566         (setq nt-type (get-text-property pos2 'nt-type))
1567         (setq nt-age (get-text-property pos2 'nt-age))
1568         (setq pos1 pos2)))))
1569
1570 (defun newsticker--set-face-properties (pos1 pos2 nt-face age)
1571   "Set the face for the text between the positions POS1 and POS2.
1572 The face is chosen according the values of NT-FACE and AGE."
1573   (let ((face (cond ((eq nt-face 'feed)
1574                      'newsticker-feed-face)
1575                     ((eq nt-face 'item)
1576                      (cond ((eq age 'new)
1577                             'newsticker-new-item-face)
1578                            ((eq age 'old)
1579                             'newsticker-old-item-face)
1580                            ((eq age 'immortal)
1581                             'newsticker-immortal-item-face)
1582                            ((eq age 'obsolete)
1583                             'newsticker-obsolete-item-face)))
1584                     ((eq nt-face 'date)
1585                      'newsticker-date-face)
1586                     ((eq nt-face 'stat)
1587                      'newsticker-statistics-face)
1588                     ((eq nt-face 'extra)
1589                      'newsticker-extra-face)
1590                     ((eq nt-face 'enclosure)
1591                      'newsticker-enclosure-face))))
1592     (when face
1593       (put-text-property pos1 (max pos1 pos2) 'face face))))
1594
1595 ;; ======================================================================
1596 ;;; Functions working on the *newsticker* buffer
1597 ;; ======================================================================
1598 (defun newsticker--buffer-make-item-completely-visible ()
1599   "Scroll buffer until current item is completely visible."
1600   (when newsticker--auto-narrow-to-feed
1601     (let* ((min (or (save-excursion (newsticker--buffer-beginning-of-feed))
1602                     (point-min)))
1603            (max (or (save-excursion (newsticker--buffer-end-of-feed))
1604                     (point-max))))
1605       (narrow-to-region min max)))
1606   (when newsticker--auto-narrow-to-item
1607     (let* ((min (or (save-excursion (newsticker--buffer-beginning-of-item))
1608                     (point-min)))
1609            (max (or (save-excursion (newsticker--buffer-end-of-item))
1610                     (point-max))))
1611       (narrow-to-region min max)))
1612   (sit-for 0)
1613   ;; do not count lines and stuff because that does not work when images
1614   ;; are displayed. Do it the simple way:
1615   (save-excursion
1616     (newsticker--buffer-end-of-item)
1617     (unless (pos-visible-in-window-p)
1618       (recenter -1)))
1619   (unless (pos-visible-in-window-p)
1620     (recenter 0)))
1621
1622 (defun newsticker--buffer-get-feed-title-at-point ()
1623   "Return feed symbol of headline at point."
1624   (format "%s" (or (get-text-property (point) 'feed) " ")))
1625
1626 (defun newsticker--buffer-get-item-title-at-point ()
1627   "Return feed symbol of headline at point."
1628   (format "%s" (or (get-text-property (point) 'nt-title) " ")))
1629
1630 (defun newsticker--buffer-goto (types &optional age backwards)
1631   "Search next occurrence of TYPES in current buffer.
1632 TYPES is a list of symbols.  If TYPES is found point is moved, if
1633 not point is left unchanged.  If optional parameter AGE is not
1634 nil, the type AND the age must match.  If BACKWARDS is t, search
1635 backwards."
1636   (let ((pos (save-excursion
1637                (save-restriction
1638                  (widen)
1639                  (catch 'found
1640                    (let ((tpos (point)))
1641                      (while (setq tpos
1642                                   (if backwards
1643                                       (if (eq tpos (point-min))
1644                                           nil
1645                                         (or (previous-single-property-change
1646                                              tpos 'nt-type)
1647                                             (point-min)))
1648                                     (next-single-property-change
1649                                      tpos 'nt-type)))
1650                        (and (memq (get-text-property tpos 'nt-type) types)
1651                             (or (not age)
1652                                 (eq (get-text-property tpos 'nt-age) age))
1653                             (throw 'found tpos)))))))))
1654     (when pos
1655       (goto-char pos))
1656     pos))
1657
1658 (defun newsticker--buffer-hideshow (mark-age onoff)
1659   "Hide or show items of type MARK-AGE.
1660 If ONOFF is nil the item is hidden, otherwise it is shown."
1661   (if onoff
1662       (remove-from-invisibility-spec mark-age)
1663     (add-to-invisibility-spec mark-age)))
1664
1665 (defun newsticker--buffer-beginning-of-item ()
1666   "Move point to the beginning of the item at point.
1667 Return new position."
1668   (if (bobp)
1669       (point)
1670     (let ((type (get-text-property (point) 'nt-type))
1671           (typebefore (get-text-property (1- (point)) 'nt-type)))
1672       (if (and (memq type '(item feed))
1673                    (not (eq type typebefore)))
1674           (point)
1675         (newsticker--buffer-goto '(item feed) nil t)
1676         (point)))))
1677
1678 (defun newsticker--buffer-beginning-of-feed ()
1679   "Move point to the beginning of the feed at point.
1680 Return new position."
1681   (if (bobp)
1682       (point)
1683     (let ((type (get-text-property (point) 'nt-type))
1684           (typebefore (get-text-property (1- (point)) 'nt-type)))
1685       (if (and (memq type '(feed))
1686                    (not (eq type typebefore)))
1687           (point)
1688         (newsticker--buffer-goto '(feed) nil t)
1689         (point)))))
1690
1691 (defun newsticker--buffer-end-of-item ()
1692   "Move point to the end of the item at point.
1693 Take care: end of item is at the end of its last line!"
1694   (when (newsticker--buffer-goto '(item feed nil))
1695     (point)))
1696
1697 (defun newsticker--buffer-end-of-feed ()
1698   "Move point to the end of the last item of the feed at point.
1699 Take care: end of item is at the end of its last line!"
1700   (when (newsticker--buffer-goto '(feed nil))
1701     (backward-char 1)
1702     (point)))
1703
1704 ;; ======================================================================
1705 ;;; misc
1706 ;; ======================================================================
1707
1708 (defun newsticker-mouse-browse-url (event)
1709   "Call `browse-url' for the link of the item at which the EVENT occurred."
1710   (interactive "e")
1711   (save-excursion
1712     (switch-to-buffer (window-buffer (posn-window (event-end event))))
1713     (let ((url (get-text-property (posn-point (event-end event))
1714                                   'nt-link)))
1715       (when url
1716         (browse-url url)
1717         (save-excursion
1718           (goto-char (posn-point (event-end event)))
1719           (if newsticker-automatically-mark-visited-items-as-old
1720               (newsticker-mark-item-at-point-as-read t)))))))
1721
1722 (defun newsticker-browse-url ()
1723   "Call `browse-url' for the link of the item at point."
1724   (interactive)
1725   (let ((url (get-text-property (point) 'nt-link)))
1726     (when url
1727       (browse-url url)
1728       (if newsticker-automatically-mark-visited-items-as-old
1729           (newsticker-mark-item-at-point-as-read t)))))
1730
1731 (defvar newsticker-open-url-history
1732   '("wget" "xmms" "realplay")
1733   "...")
1734
1735 (defun newsticker-handle-url ()
1736   "Ask for a program to open the link of the item at point."
1737   (interactive)
1738   (let ((url (get-text-property (point) 'nt-link)))
1739     (when url
1740       (let ((prog (read-string "Open url with: " nil
1741                                'newsticker-open-url-history)))
1742         (when prog
1743           (message "%s %s" prog url)
1744           (start-process prog prog prog url)
1745       (if newsticker-automatically-mark-visited-items-as-old
1746           (newsticker-mark-item-at-point-as-read t)))))))
1747
1748
1749 ;; ======================================================================
1750 ;;; Misc
1751 ;; ======================================================================
1752
1753 (defun newsticker--cache-sort ()
1754   "Sort the newsticker cache data."
1755   (let ((sort-fun (cond ((eq newsticker-sort-method 'sort-by-time)
1756                          'newsticker--cache-item-compare-by-time)
1757                         ((eq newsticker-sort-method 'sort-by-title)
1758                          'newsticker--cache-item-compare-by-title)
1759                         ((eq newsticker-sort-method 'sort-by-original-order)
1760                          'newsticker--cache-item-compare-by-position))))
1761     (mapc (lambda (feed-list)
1762             (setcdr feed-list (sort (cdr feed-list)
1763                                     sort-fun)))
1764           newsticker--cache)))
1765
1766 (provide 'newst-plainview)
1767
1768 ;;; newst-plainview.el ends here