1 ;;; newst-treeview.el --- Treeview frontend for newsticker.
3 ;; Copyright (C) 2008, 2009 Free Software Foundation, Inc.
5 ;; Author: Ulf Jasper <ulf.jasper@web.de>
6 ;; Filename: newst-treeview.el
7 ;; URL: http://www.nongnu.org/newsticker
9 ;; Keywords: News, RSS, Atom
10 ;; Time-stamp: "22. Januar 2009, 20:41:31 (ulf)"
12 ;; ======================================================================
14 ;; This file is part of GNU Emacs.
16 ;; GNU Emacs is free software: you can redistribute it and/or modify
17 ;; it under the terms of the GNU General Public License as published by
18 ;; the Free Software Foundation, either version 3 of the License, or
19 ;; (at your option) any later version.
21 ;; GNU Emacs is distributed in the hope that it will be useful,
22 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 ;; GNU General Public License for more details.
26 ;; You should have received a copy of the GNU General Public License
27 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
29 ;; ======================================================================
34 ;; ======================================================================
39 ;; ======================================================================
41 (require 'newsticker-reader
"newst-reader")
43 (require 'tree-widget
)
46 ;; ======================================================================
48 ;; ======================================================================
49 (defgroup newsticker-treeview nil
50 "Settings for the tree view reader."
51 :group
'newsticker-reader
)
53 (defface newsticker-treeview-face
54 '((((class color
) (background dark
))
55 (:family
"helvetica" :foreground
"misty rose" :bold nil
))
56 (((class color
) (background light
))
57 (:family
"helvetica" :foreground
"black" :bold nil
)))
58 "Face for newsticker tree."
59 :group
'newsticker-treeview
)
61 (defface newsticker-treeview-new-face
62 '((((class color
) (background dark
))
63 (:inherit newsticker-treeview-face
:bold t
))
64 (((class color
) (background light
))
65 (:inherit newsticker-treeview-face
:bold t
)))
66 "Face for newsticker tree."
67 :group
'newsticker-treeview
)
69 (defface newsticker-treeview-old-face
70 '((((class color
) (background dark
))
71 (:inherit newsticker-treeview-face
))
72 (((class color
) (background light
))
73 (:inherit newsticker-treeview-face
)))
74 "Face for newsticker tree."
75 :group
'newsticker-treeview
)
77 (defface newsticker-treeview-immortal-face
78 '((((class color
) (background dark
))
79 (:inherit newsticker-treeview-face
:foreground
"orange" :italic t
))
80 (((class color
) (background light
))
81 (:inherit newsticker-treeview-face
:foreground
"blue" :italic t
)))
82 "Face for newsticker tree."
83 :group
'newsticker-treeview
)
85 (defface newsticker-treeview-obsolete-face
86 '((((class color
) (background dark
))
87 (:inherit newsticker-treeview-face
:strike-through t
))
88 (((class color
) (background light
))
89 (:inherit newsticker-treeview-face
:strike-through t
)))
90 "Face for newsticker tree."
91 :group
'newsticker-treeview
)
93 (defface newsticker-treeview-selection-face
94 '((((class color
) (background dark
))
95 (:background
"#bbbbff"))
96 (((class color
) (background light
))
97 (:background
"#bbbbff")))
98 "Face for newsticker selection."
99 :group
'newsticker-treeview
)
101 (defcustom newsticker-treeview-own-frame
103 "Decides whether newsticker treeview creates and uses its own frame."
105 :group
'newsticker-treeview
)
107 (defcustom newsticker-treeview-treewindow-width
109 "Width of tree window in treeview layout.
110 See also `newsticker-treeview-listwindow-height'."
112 :group
'newsticker-treeview
)
114 (defcustom newsticker-treeview-listwindow-height
116 "Height of list window in treeview layout.
117 See also `newsticker-treeview-treewindow-width'."
119 :group
'newsticker-treeview
)
121 (defcustom newsticker-treeview-automatically-mark-displayed-items-as-old
123 "Decides whether to automatically mark displayed items as old.
124 If t an item is marked as old as soon as it is displayed. This
125 applies to newsticker only."
127 :group
'newsticker-treeview
)
129 (defvar newsticker-groups
131 "List of feed groups, used in the treeview frontend.
132 First element is a string giving the group name. Remaining
133 elements are either strings giving a feed name or lists having
134 the same structure as `newsticker-groups'. (newsticker-groups :=
135 groupdefinition, groupdefinition := groupname groupcontent*,
136 groupcontent := feedname | groupdefinition)
138 Example: (\"Topmost group\" \"feed1\" (\"subgroup1\" \"feed 2\")
141 (defcustom newsticker-groups-filename
142 "~/.newsticker-groups"
143 "Name of the newsticker groups settings file."
145 :group
'newsticker-treeview
)
146 (make-obsolete 'newsticker-groups-filename
'newsticker-dir
)
148 ;; ======================================================================
149 ;;; internal variables
150 ;; ======================================================================
151 (defvar newsticker--treeview-windows nil
)
152 (defvar newsticker--treeview-buffers nil
)
153 (defvar newsticker--treeview-current-feed nil
154 "Feed name of currently shown item.")
155 (defvar newsticker--treeview-current-vfeed nil
)
156 (defvar newsticker--treeview-list-show-feed nil
)
157 (defvar newsticker--saved-window-config nil
)
158 (defvar newsticker--selection-overlay nil
159 "Highlight the selected tree node.")
160 (defvar newsticker--tree-selection-overlay nil
161 "Highlight the selected list item.")
162 (defvar newsticker--frame nil
"Special frame for newsticker windows.")
163 (defvar newsticker--treeview-list-sort-order
'sort-by-time
)
164 (defvar newsticker--treeview-current-node-id nil
)
165 (defvar newsticker--treeview-current-tree nil
)
166 (defvar newsticker--treeview-feed-tree nil
)
167 (defvar newsticker--treeview-vfeed-tree nil
)
169 ;; maps for the clickable portions
170 (defvar newsticker--treeview-url-keymap
171 (let ((map (make-sparse-keymap 'newsticker--treeview-url-keymap
)))
172 (define-key map
[mouse-1
] 'newsticker-treeview-mouse-browse-url
)
173 (define-key map
[mouse-2
] 'newsticker-treeview-mouse-browse-url
)
174 (define-key map
"\n" 'newsticker-treeview-browse-url
)
175 (define-key map
"\C-m" 'newsticker-treeview-browse-url
)
176 (define-key map
[(control return
)] 'newsticker-handle-url
)
178 "Key map for click-able headings in the newsticker treeview buffers.")
181 ;; ======================================================================
183 ;; ======================================================================
184 (defsubst newsticker--treeview-tree-buffer
()
185 "Return the tree buffer of the newsticker treeview."
186 (nth 0 newsticker--treeview-buffers
))
187 (defsubst newsticker--treeview-list-buffer
()
188 "Return the list buffer of the newsticker treeview."
189 (nth 1 newsticker--treeview-buffers
))
190 (defsubst newsticker--treeview-item-buffer
()
191 "Return the item buffer of the newsticker treeview."
192 (nth 2 newsticker--treeview-buffers
))
193 (defsubst newsticker--treeview-tree-window
()
194 "Return the tree window of the newsticker treeview."
195 (nth 0 newsticker--treeview-windows
))
196 (defsubst newsticker--treeview-list-window
()
197 "Return the list window of the newsticker treeview."
198 (nth 1 newsticker--treeview-windows
))
199 (defsubst newsticker--treeview-item-window
()
200 "Return the item window of the newsticker treeview."
201 (nth 2 newsticker--treeview-windows
))
203 ;; ======================================================================
204 ;;; utility functions
205 ;; ======================================================================
206 (defun newsticker--treeview-get-id (parent i
)
207 "Create an id for a newsticker treeview node.
208 PARENT is the node's parent, I is an integer."
209 ;;(message "newsticker--treeview-get-id %s"
210 ;; (format "%s-%d" (widget-get parent :nt-id) i))
211 (format "%s-%d" (widget-get parent
:nt-id
) i
))
213 (defun newsticker--treeview-ids-eq (id1 id2
)
214 "Return non-nil if ids ID1 and ID2 are equal."
215 ;;(message "%s/%s" (or id1 -1) (or id2 -1))
216 (and id1 id2
(string= id1 id2
)))
218 (defun newsticker--treeview-nodes-eq (node1 node2
)
219 "Compare treeview nodes NODE1 and NODE2 for equality.
220 Nodes are equal if the have the same newsticker-id. Note that
221 during re-tagging and collapsing/expanding nodes change, while
222 their id stays constant."
223 (let ((id1 (widget-get node1
:nt-id
))
224 (id2 (widget-get node2
:nt-id
)))
225 ;;(message "%s/%s %s/%s" (widget-get node1 :tag) (widget-get node2 :tag)
226 ;; (or id1 -1) (or id2 -1))
227 (or (newsticker--treeview-ids-eq id1 id2
)
228 (string= (widget-get node1
:tag
) (widget-get node2
:tag
)))))
230 (defun newsticker--treeview-do-get-node-of-feed (feed-name startnode
)
231 "Recursivly search node for feed FEED-NAME starting from STARTNODE."
232 ;;(message "%s/%s" feed-name (widget-get startnode :nt-feed))
233 (if (string= feed-name
(or (widget-get startnode
:nt-feed
)
234 (widget-get startnode
:nt-vfeed
)))
235 (throw 'found startnode
)
236 (let ((children (widget-get startnode
:children
)))
238 (newsticker--treeview-do-get-node-of-feed feed-name w
)))))
240 (defun newsticker--treeview-get-node-of-feed (feed-name)
241 "Return node for feed FEED-NAME in newsticker treeview tree."
243 (newsticker--treeview-do-get-node-of-feed feed-name
244 newsticker--treeview-feed-tree
)
245 (newsticker--treeview-do-get-node-of-feed feed-name
246 newsticker--treeview-vfeed-tree
)))
248 (defun newsticker--treeview-do-get-node (id startnode
)
249 "Recursivly search node with ID starting from STARTNODE."
250 (if (newsticker--treeview-ids-eq id
(widget-get startnode
:nt-id
))
251 (throw 'found startnode
)
252 (let ((children (widget-get startnode
:children
)))
254 (newsticker--treeview-do-get-node id w
)))))
256 (defun newsticker--treeview-get-node (id)
257 "Return node with ID in newsticker treeview tree."
259 (newsticker--treeview-do-get-node id newsticker--treeview-feed-tree
)
260 (newsticker--treeview-do-get-node id newsticker--treeview-vfeed-tree
)))
262 (defun newsticker--treeview-get-current-node ()
263 "Return current node in newsticker treeview tree."
264 (newsticker--treeview-get-node newsticker--treeview-current-node-id
))
266 ;; ======================================================================
268 (unless (fboundp 'declare-function
) (defmacro declare-function
(&rest r
)))
269 (declare-function w3m-toggle-inline-images
"ext:w3m" (&optional force no-cache
))
271 (defun newsticker--treeview-render-text (start end
)
272 "Render text between markers START and END."
273 (if newsticker-html-renderer
274 (condition-case error-data
276 (set-marker-insertion-type end t
)
277 ;; check whether it is necessary to call html renderer
278 ;; (regexp inspired by htmlr.el)
280 (when (re-search-forward
281 "</?[A-Za-z1-6]*\\|&#?[A-Za-z0-9]+;" end t
)
282 ;; (message "%s" (newsticker--title item))
283 (let ((w3m-fill-column (if newsticker-use-full-width
285 (w3-maximum-line-length
286 (if newsticker-use-full-width nil fill-column
)))
288 (funcall newsticker-html-renderer start end
)))
289 ;;(cond ((eq newsticker-html-renderer 'w3m-region)
290 ;; (add-text-properties start end (list 'keymap
291 ;; w3m-minor-mode-map)))
292 ;;((eq newsticker-html-renderer 'w3-region)
293 ;;(add-text-properties start end (list 'keymap w3-mode-map))))
294 (if (eq newsticker-html-renderer
'w3m-region
)
295 (w3m-toggle-inline-images t
))
298 (message "Error: HTML rendering failed: %s, %s"
299 (car error-data
) (cdr error-data
))
303 ;; ======================================================================
305 ;; ======================================================================
306 (defun newsticker--treeview-list-add-item (item feed
&optional show-feed
)
307 "Add news ITEM for FEED to newsticker treeview list window.
308 If string SHOW-FEED is non-nil it is shown in the item string."
309 (setq newsticker--treeview-list-show-feed show-feed
)
311 (set-buffer (newsticker--treeview-list-buffer))
312 (let* ((inhibit-read-only t
)
314 (goto-char (point-max))
315 (setq pos1
(point-marker))
317 (insert (propertize " " 'display
'(space :align-to
2)))
318 (insert (if show-feed
321 (format "%-10s" (newsticker--real-feed-name
324 (propertize " " 'display
'(space :align-to
12)))
326 (insert (format-time-string "%d.%m.%y, %H:%M"
327 (newsticker--time item
)))
328 (insert (propertize " " 'display
329 (list 'space
:align-to
(if show-feed
28 18))))
330 (setq pos2
(point-marker))
331 (insert (newsticker--title item
))
333 (newsticker--treeview-render-text pos2
(point-marker))
335 (while (search-forward "\n" nil t
)
337 (let ((map (make-sparse-keymap)))
338 (define-key map
[mouse-1
] 'newsticker-treeview-tree-click
)
339 (define-key map
"\n" 'newsticker-treeview-show-item
)
340 (define-key map
"\C-m" 'newsticker-treeview-show-item
)
341 (add-text-properties pos1
(point-max)
344 :nt-link
(newsticker--link item
)
345 'mouse-face
'highlight
347 'help-echo
(buffer-substring pos2
351 (defun newsticker--treeview-list-clear ()
352 "Clear the newsticker treeview list window."
354 (set-buffer (newsticker--treeview-list-buffer))
355 (let ((inhibit-read-only t
))
357 (kill-all-local-variables)
360 (defun newsticker--treeview-list-items-with-age-callback (widget
363 "Fill newsticker treeview list window with items of certain age.
364 This is a callback function for the treeview nodes.
365 Argument WIDGET is the calling treeview widget.
366 Argument CHANGED-WIDGET is the widget that actually has changed.
367 Optional argument AGES is the list of ages that are to be shown."
368 (newsticker--treeview-list-clear)
369 (widget-put widget
:nt-selected t
)
370 (apply 'newsticker--treeview-list-items-with-age ages
))
372 (defun newsticker--treeview-list-items-with-age (&rest ages
)
373 "Actually fill newsticker treeview list window with items of certain age.
374 AGES is the list of ages that are to be shown."
376 (let ((feed-name-symbol (intern (car feed
))))
378 (when (memq (newsticker--age item
) ages
)
379 (newsticker--treeview-list-add-item
380 item feed-name-symbol t
)))
381 (newsticker--treeview-list-sort-items
382 (cdr (newsticker--cache-get-feed feed-name-symbol
))))))
383 (append newsticker-url-list-defaults newsticker-url-list
))
384 (newsticker--treeview-list-update nil
))
386 (defun newsticker--treeview-list-new-items (widget changed-widget
388 "Fill newsticker treeview list window with new items.
389 This is a callback function for the treeview nodes.
390 Argument WIDGET is the calling treeview widget.
391 Argument CHANGED-WIDGET is the widget that actually has changed.
392 Optional argument EVENT is the mouse event that triggered this action."
393 (newsticker--treeview-list-items-with-age-callback widget changed-widget
395 (newsticker--treeview-item-show-text
397 "This is a virtual feed containing all new items"))
399 (defun newsticker--treeview-list-immortal-items (widget changed-widget
401 "Fill newsticker treeview list window with immortal items.
402 This is a callback function for the treeview nodes.
403 Argument WIDGET is the calling treeview widget.
404 Argument CHANGED-WIDGET is the widget that actually has changed.
405 Optional argument EVENT is the mouse event that triggered this action."
406 (newsticker--treeview-list-items-with-age-callback widget changed-widget
408 (newsticker--treeview-item-show-text
410 "This is a virtual feed containing all immortal items."))
412 (defun newsticker--treeview-list-obsolete-items (widget changed-widget
414 "Fill newsticker treeview list window with obsolete items.
415 This is a callback function for the treeview nodes.
416 Argument WIDGET is the calling treeview widget.
417 Argument CHANGED-WIDGET is the widget that actually has changed.
418 Optional argument EVENT is the mouse event that triggered this action."
419 (newsticker--treeview-list-items-with-age-callback widget changed-widget
421 (newsticker--treeview-item-show-text
423 "This is a virtual feed containing all obsolete items."))
425 (defun newsticker--treeview-list-all-items (widget changed-widget
427 "Fill newsticker treeview list window with all items.
428 This is a callback function for the treeview nodes.
429 Argument WIDGET is the calling treeview widget.
430 Argument CHANGED-WIDGET is the widget that actually has changed.
431 Optional argument EVENT is the mouse event that triggered this action."
432 (newsticker--treeview-list-items-with-age-callback widget changed-widget
435 (newsticker--treeview-item-show-text
437 "This is a virtual feed containing all items."))
439 (defun newsticker--treeview-list-items-v (vfeed-name)
440 "List items for virtual feed VFEED-NAME."
442 (cond ((string-match "\\*new\\*" vfeed-name
)
443 (newsticker--treeview-list-items-with-age 'new
))
444 ((string-match "\\*immortal\\*" vfeed-name
)
445 (newsticker--treeview-list-items-with-age 'immortal
))
446 ((string-match "\\*old\\*" vfeed-name
)
447 (newsticker--treeview-list-items-with-age 'old nil
)))
448 (newsticker--treeview-list-update nil
)
451 (defun newsticker--treeview-list-items (feed-name)
452 "List items for feed FEED-NAME."
454 (if (newsticker--treeview-virtual-feed-p feed-name
)
455 (newsticker--treeview-list-items-v feed-name
)
457 (if (eq (newsticker--age item
) 'feed
)
458 (newsticker--treeview-item-show item
(intern feed-name
))
459 (newsticker--treeview-list-add-item item
460 (intern feed-name
))))
461 (newsticker--treeview-list-sort-items
462 (cdr (newsticker--cache-get-feed (intern feed-name
)))))
463 (newsticker--treeview-list-update nil
))))
465 (defun newsticker--treeview-list-feed-items (widget changed-widget
467 "Callback function for listing feed items.
468 Argument WIDGET is the calling treeview widget.
469 Argument CHANGED-WIDGET is the widget that actually has changed.
470 Optional argument EVENT is the mouse event that triggered this action."
471 (newsticker--treeview-list-clear)
472 (widget-put widget
:nt-selected t
)
473 (let ((feed-name (widget-get widget
:nt-feed
))
474 (vfeed-name (widget-get widget
:nt-vfeed
)))
476 (newsticker--treeview-list-items feed-name
)
477 (newsticker--treeview-list-items-v vfeed-name
))))
479 (defun newsticker--treeview-list-compare-item-by-age (item1 item2
)
480 "Compare two news items ITEM1 and ITEM2 wrt age."
482 (let ((age1 (newsticker--age item1
))
483 (age2 (newsticker--age item2
)))
484 (cond ((eq age1
'new
)
487 (cond ((eq age2
'new
)
494 (cond ((eq age2
'new
)
505 (defun newsticker--treeview-list-compare-item-by-age-reverse (item1 item2
)
506 "Compare two news items ITEM1 and ITEM2 wrt age in reverse order."
507 (newsticker--treeview-list-compare-item-by-age item2 item1
))
509 (defun newsticker--treeview-list-compare-item-by-time (item1 item2
)
510 "Compare two news items ITEM1 and ITEM2 wrt time values."
511 (newsticker--cache-item-compare-by-time item1 item2
))
513 (defun newsticker--treeview-list-compare-item-by-time-reverse (item1 item2
)
514 "Compare two news items ITEM1 and ITEM2 wrt time values in reverse order."
515 (newsticker--cache-item-compare-by-time item2 item1
))
517 (defun newsticker--treeview-list-compare-item-by-title (item1 item2
)
518 "Compare two news items ITEM1 and ITEM2 wrt title."
519 (newsticker--cache-item-compare-by-title item1 item2
))
521 (defun newsticker--treeview-list-compare-item-by-title-reverse (item1 item2
)
522 "Compare two news items ITEM1 and ITEM2 wrt title in reverse order."
523 (newsticker--cache-item-compare-by-title item2 item1
))
525 (defun newsticker--treeview-list-sort-items (items)
526 "Return sorted copy of list ITEMS.
527 The sort function is chosen according to the value of
528 `newsticker--treeview-list-sort-order'."
530 (cond ((eq newsticker--treeview-list-sort-order
'sort-by-age
)
531 'newsticker--treeview-list-compare-item-by-age
)
532 ((eq newsticker--treeview-list-sort-order
533 'sort-by-age-reverse
)
534 'newsticker--treeview-list-compare-item-by-age-reverse
)
535 ((eq newsticker--treeview-list-sort-order
'sort-by-time
)
536 'newsticker--treeview-list-compare-item-by-time
)
537 ((eq newsticker--treeview-list-sort-order
538 'sort-by-time-reverse
)
539 'newsticker--treeview-list-compare-item-by-time-reverse
)
540 ((eq newsticker--treeview-list-sort-order
'sort-by-title
)
541 'newsticker--treeview-list-compare-item-by-title
)
542 ((eq newsticker--treeview-list-sort-order
543 'sort-by-title-reverse
)
544 'newsticker--treeview-list-compare-item-by-title-reverse
)
546 'newsticker--treeview-list-compare-item-by-title
))))
547 (sort (copy-sequence items
) sort-fun
)))
549 (defun newsticker--treeview-list-update-faces ()
550 "Update faces in the treeview list buffer."
553 (set-buffer (newsticker--treeview-list-buffer))
554 (let ((inhibit-read-only t
))
555 (goto-char (point-min))
557 (let* ((pos (save-excursion (end-of-line) (point)))
558 (item (get-text-property (point) :nt-item
))
559 (age (newsticker--age item
))
560 (selected (get-text-property (point) :nt-selected
))
561 (face (cond ((eq age
'new
)
562 'newsticker-treeview-new-face
)
564 'newsticker-treeview-old-face
)
566 'newsticker-treeview-immortal-face
)
568 'newsticker-treeview-obsolete-face
)
571 (put-text-property (point) pos
'face face
)
573 (move-overlay newsticker--selection-overlay
(point)
574 (1+ pos
) ;include newline
576 (if selected
(setq pos-sel
(point)))
578 (beginning-of-line))))) ;; FIXME!?
580 (if (window-live-p (newsticker--treeview-list-window))
581 (set-window-point (newsticker--treeview-list-window) pos-sel
)))))
583 (defun newsticker--treeview-list-clear-highlight ()
584 "Clear the highlight in the treeview list buffer."
586 (set-buffer (newsticker--treeview-list-buffer))
587 (let ((inhibit-read-only t
))
588 (put-text-property (point-min) (point-max) :nt-selected nil
))
589 (newsticker--treeview-list-update-faces)))
591 (defun newsticker--treeview-list-update-highlight ()
592 "Update the highlight in the treeview list buffer."
593 (newsticker--treeview-list-clear-highlight)
596 (set-buffer (newsticker--treeview-list-buffer))
597 (let ((inhibit-read-only t
))
598 (put-text-property (save-excursion (beginning-of-line) (point))
599 (save-excursion (end-of-line) (point))
601 (newsticker--treeview-list-update-faces))))
603 (defun newsticker--treeview-list-highlight-start ()
604 "Return position of selection in treeview list buffer."
606 (set-buffer (newsticker--treeview-list-buffer))
607 (goto-char (point-min))
608 (next-single-property-change (point) :nt-selected
)))
610 (defun newsticker--treeview-list-update (clear-buffer)
611 "Update the faces and highlight in the treeview list buffer.
612 If CLEAR-BUFFER is non-nil the list buffer is completely erased."
614 (if (window-live-p (newsticker--treeview-list-window))
615 (set-window-buffer (newsticker--treeview-list-window)
616 (newsticker--treeview-list-buffer)))
617 (set-buffer (newsticker--treeview-list-buffer))
619 (let ((inhibit-read-only t
))
621 (newsticker-treeview-list-mode)
622 (newsticker--treeview-list-update-faces)
623 (goto-char (point-min))))
625 (defvar newsticker-treeview-list-sort-button-map
626 (let ((map (make-sparse-keymap)))
627 (define-key map
[header-line mouse-1
]
628 'newsticker--treeview-list-sort-by-column
)
629 (define-key map
[header-line mouse-2
]
630 'newsticker--treeview-list-sort-by-column
)
632 "Local keymap for newsticker treeview list window sort buttons.")
634 (defun newsticker--treeview-list-sort-by-column (&optional event
)
635 "Sort the newsticker list window buffer by the column clicked on.
636 Optional argument EVENT is the mouse event that triggered this action."
637 (interactive (list last-input-event
))
638 (if event
(mouse-select-window event
))
639 (let* ((pos (event-start event
))
640 (obj (posn-object pos
))
642 (get-text-property (cdr obj
) 'sort-order
(car obj
))
643 (get-text-property (posn-point pos
) 'sort-order
))))
644 (setq newsticker--treeview-list-sort-order
645 (cond ((eq sort-order
'sort-by-age
)
646 (if (eq newsticker--treeview-list-sort-order
'sort-by-age
)
649 ((eq sort-order
'sort-by-time
)
650 (if (eq newsticker--treeview-list-sort-order
'sort-by-time
)
651 'sort-by-time-reverse
653 ((eq sort-order
'sort-by-title
)
654 (if (eq newsticker--treeview-list-sort-order
'sort-by-title
)
655 'sort-by-title-reverse
657 (newsticker-treeview-update)))
659 (defun newsticker-treeview-list-make-sort-button (name sort-order
)
660 "Create propertized string for headerline button.
661 NAME is the button text, SORT-ORDER is the associated sort order
663 (let ((face (if (string-match (symbol-name sort-order
)
665 newsticker--treeview-list-sort-order
))
669 'sort-order sort-order
670 'help-echo
(concat "Sort by " name
)
671 'mouse-face
'highlight
673 'keymap newsticker-treeview-list-sort-button-map
)))
675 ;; ======================================================================
677 ;; ======================================================================
678 (defun newsticker--treeview-item-show-text (title description
)
679 "Show text in treeview item buffer consisting of TITLE and DESCRIPTION."
681 (set-buffer (newsticker--treeview-item-buffer))
682 (when (fboundp 'w3m-process-stop
)
683 (w3m-process-stop (current-buffer)))
684 (let ((inhibit-read-only t
))
686 (kill-all-local-variables)
689 (put-text-property (point-min) (point) 'face
'newsticker-feed-face
)
690 (insert "\n\n" description
)
691 (when newsticker-justification
692 (fill-region (point-min) (point-max) newsticker-justification
))
693 (newsticker-treeview-mode)
694 (goto-char (point-min)))))
696 (defun newsticker--treeview-item-show (item feed-name-symbol
)
697 "Show news ITEM coming from FEED-NAME-SYMBOL in treeview item buffer."
698 (setq newsticker--treeview-current-feed
(symbol-name feed-name-symbol
))
700 (set-buffer (newsticker--treeview-item-buffer))
701 (when (fboundp 'w3m-process-stop
)
702 (w3m-process-stop (current-buffer)))
703 (let ((inhibit-read-only t
)
704 (is-rendered-HTML nil
)
706 (marker1 (make-marker))
707 (marker2 (make-marker)))
709 (kill-all-local-variables)
712 (when (and item feed-name-symbol
)
713 (let ((wwidth (1- (window-width (newsticker--treeview-item-window)))))
714 (if newsticker-use-full-width
715 (set (make-local-variable 'fill-column
) wwidth
))
716 (set (make-local-variable 'fill-column
) (min fill-column
718 (let ((desc (newsticker--desc item
)))
719 (insert "\n" (or desc
"[No Description]")))
720 (set-marker marker1
(1+ (point-min)))
721 (set-marker marker2
(point-max))
722 (setq is-rendered-HTML
(newsticker--treeview-render-text marker1
724 (when (and newsticker-justification
725 (not is-rendered-HTML
))
726 (fill-region marker1 marker2 newsticker-justification
))
728 (newsticker-treeview-mode)
729 (goto-char (point-min))
730 ;; insert logo at top
731 (let* ((newsticker-enable-logo-manipulations nil
)
732 (img (newsticker--image-read feed-name-symbol nil
)))
733 (if (and (display-images-p) img
)
734 (newsticker--insert-image img
(car item
))
735 (insert (newsticker--real-feed-name feed-name-symbol
))))
736 (add-text-properties (point-min) (point)
737 (list 'face
'newsticker-feed-face
738 'mouse-face
'highlight
739 'help-echo
"Visit in web browser."
740 :nt-link
(newsticker--link item
)
741 'keymap newsticker--treeview-url-keymap
))
747 (insert (newsticker--title item
) "\n")
748 (set-marker marker1 pos
)
749 (set-marker marker2
(point))
750 (newsticker--treeview-render-text marker1 marker2
)
751 (put-text-property pos
(point) 'face
'newsticker-treeview-new-face
)
755 (put-text-property marker2
(point) 'face
'newsticker-treeview-face
)
756 (set-marker marker2
(point))
757 (when newsticker-justification
758 (fill-region marker1 marker2 newsticker-justification
))
760 (add-text-properties marker1
(1- (point))
761 (list 'mouse-face
'highlight
762 'help-echo
"Visit in web browser."
763 :nt-link
(newsticker--link item
)
764 'keymap newsticker--treeview-url-keymap
))
765 (insert (format-time-string newsticker-date-format
766 (newsticker--time item
)))
770 ;; insert enclosures and rest at bottom
771 (goto-char (point-max))
774 (newsticker--insert-enclosure item newsticker--treeview-url-keymap
)
775 (put-text-property pos
(point) 'face
'newsticker-enclosure-face
)
778 (newsticker--print-extra-elements item newsticker--treeview-url-keymap
)
779 (put-text-property pos
(point) 'face
'newsticker-extra-face
)
780 (goto-char (point-min)))))
781 (if (and newsticker-treeview-automatically-mark-displayed-items-as-old
783 (memq (newsticker--age item
) '(new obsolete
)))
784 (let ((newsticker-treeview-automatically-mark-displayed-items-as-old nil
))
785 (newsticker-treeview-mark-item-old t
)
786 (newsticker--treeview-list-update-faces)))
787 (if (window-live-p (newsticker--treeview-item-window))
788 (set-window-point (newsticker--treeview-item-window) 1)))
790 (defun newsticker--treeview-item-update ()
791 "Update the treeview item buffer and window."
793 (if (window-live-p (newsticker--treeview-item-window))
794 (set-window-buffer (newsticker--treeview-item-window)
795 (newsticker--treeview-item-buffer)))
796 (set-buffer (newsticker--treeview-item-buffer))
797 (let ((inhibit-read-only t
))
799 (newsticker-treeview-mode)))
801 ;; ======================================================================
803 ;; ======================================================================
804 (defun newsticker--treeview-tree-expand (tree)
806 Callback function for tree widget that adds nodes for feeds and subgroups."
807 (tree-widget-set-theme "folder")
808 (let ((group (widget-get tree
:nt-group
))
812 (setq nt-id
(newsticker--treeview-get-id tree i
))
815 (let* ((g-name (car g
)))
817 :tag
,(newsticker--treeview-tree-get-tag g-name nil nt-id
)
818 :expander newsticker--treeview-tree-expand
819 :expander-p
(lambda (&rest ignore
) t
)
823 :keep
(:nt-feed
:num-new
:nt-id
:open
);; :nt-group
825 (let ((tag (newsticker--treeview-tree-get-tag g nil nt-id
)))
827 :leaf-icon newsticker--tree-widget-leaf-icon
829 :action newsticker--treeview-list-feed-items
835 (defun newsticker--treeview-tree-expand-status (tree &optional changed-widget
837 "Expand the vfeed TREE.
838 Optional arguments CHANGED-WIDGET and EVENT are ignored."
839 (tree-widget-set-theme "folder")
840 (list `(item :tag
,(newsticker--treeview-tree-get-tag nil
"new")
842 :action newsticker--treeview-list-new-items
843 :nt-id
,(newsticker--treeview-get-id tree
0)
845 `(item :tag
,(newsticker--treeview-tree-get-tag nil
"immortal")
847 :action newsticker--treeview-list-immortal-items
848 :nt-id
,(newsticker--treeview-get-id tree
1)
850 `(item :tag
,(newsticker--treeview-tree-get-tag nil
"obsolete")
852 :action newsticker--treeview-list-obsolete-items
853 :nt-id
,(newsticker--treeview-get-id tree
2)
855 `(item :tag
,(newsticker--treeview-tree-get-tag nil
"all")
857 :action newsticker--treeview-list-all-items
858 :nt-id
,(newsticker--treeview-get-id tree
3)
861 (defun newsticker--treeview-virtual-feed-p (feed-name)
862 "Return non-nil if FEED-NAME is a virtual feed."
863 (string-match "\\*.*\\*" feed-name
))
865 (define-widget 'newsticker--tree-widget-leaf-icon
'tree-widget-icon
866 "Icon for a tree-widget leaf node."
869 :button-face
'default
)
871 (defun newsticker--treeview-tree-update ()
872 "Update treeview tree buffer and window."
874 (if (window-live-p (newsticker--treeview-tree-window))
875 (set-window-buffer (newsticker--treeview-tree-window)
876 (newsticker--treeview-tree-buffer)))
877 (set-buffer (newsticker--treeview-tree-buffer))
878 (kill-all-local-variables)
879 (let ((inhibit-read-only t
))
881 (tree-widget-set-theme "folder")
882 (setq newsticker--treeview-feed-tree
883 (widget-create 'tree-widget
884 :tag
(newsticker--treeview-propertize-tag
886 :expander
'newsticker--treeview-tree-expand
887 :expander-p
(lambda (&rest ignore
) t
)
888 :leaf-icon
'newsticker--tree-widget-leaf-icon
889 :nt-group
(cdr newsticker-groups
)
893 (setq newsticker--treeview-vfeed-tree
894 (widget-create 'tree-widget
895 :tag
(newsticker--treeview-propertize-tag
896 "Virtual Feeds" 0 "vfeeds")
897 :expander
'newsticker--treeview-tree-expand-status
898 :expander-p
(lambda (&rest ignore
) t
)
899 :leaf-icon
'newsticker--tree-widget-leaf-icon
903 (use-local-map widget-keymap
)
905 (newsticker-treeview-mode)))
907 (defun newsticker--treeview-propertize-tag (tag &optional num-new nt-id feed
909 "Return propertized copy of string TAG.
910 Optional argument NUM-NEW is used for choosing face, other
911 arguments NT-ID, FEED, and VFEED are added as properties."
912 ;;(message "newsticker--treeview-propertize-tag '%s' %s" feed nt-id)
913 (let ((face 'newsticker-treeview-face
)
914 (map (make-sparse-keymap)))
915 (if (and num-new
(> num-new
0))
916 (setq face
'newsticker-treeview-new-face
))
917 (define-key map
[mouse-1
] 'newsticker-treeview-tree-click
)
918 (define-key map
"\n" 'newsticker-treeview-tree-do-click
)
919 (define-key map
"\C-m" 'newsticker-treeview-tree-do-click
)
920 (propertize tag
'face face
'keymap map
925 'mouse-face
'highlight
)))
927 (defun newsticker--treeview-tree-get-tag (feed-name vfeed-name
929 "Return a tag string for either FEED-NAME or, if it is nil, for VFEED-NAME.
930 Optional argument NT-ID is added to the tag's properties."
931 (let (tag (num-new 0))
933 (cond ((string= vfeed-name
"new")
934 (setq num-new
(newsticker--stat-num-items-total 'new
))
935 (setq tag
(format "New items (%d)" num-new
)))
936 ((string= vfeed-name
"immortal")
937 (setq num-new
(newsticker--stat-num-items-total 'immortal
))
938 (setq tag
(format "Immortal items (%d)" num-new
)))
939 ((string= vfeed-name
"obsolete")
940 (setq num-new
(newsticker--stat-num-items-total 'obsolete
))
941 (setq tag
(format "Obsolete items (%d)" num-new
)))
942 ((string= vfeed-name
"all")
943 (setq num-new
(newsticker--stat-num-items-total))
944 (setq tag
(format "All items (%d)" num-new
)))))
946 (setq num-new
(newsticker--stat-num-items-for-group
947 (intern feed-name
) 'new
'immortal
))
950 (newsticker--real-feed-name (intern feed-name
))
953 (newsticker--treeview-propertize-tag tag num-new
955 feed-name vfeed-name
))))
957 (defun newsticker--stat-num-items-for-group (feed-name-symbol &rest ages
)
958 "Count number of items in feed FEED-NAME-SYMBOL that have an age matching AGES."
959 ;;(message "newsticker--stat-num-items-for-group %s %s" feed-name-symbol ages)
960 (let ((result (apply 'newsticker--stat-num-items feed-name-symbol ages
)))
962 (setq result
(+ result
963 (apply 'newsticker--stat-num-items
(intern f-n
)
965 (newsticker--group-get-feeds
966 (newsticker--group-get-group (symbol-name feed-name-symbol
)) t
))
969 (defun newsticker--treeview-count-node-items (feed &optional isvirtual
)
970 "Count number of relevant items for a treeview node.
971 FEED gives the name of the feed or group. If ISVIRTUAL is non-nil
972 the feed is a virtual feed."
976 (cond ((string= feed
"new")
977 (setq num-new
(newsticker--stat-num-items-total 'new
)))
978 ((string= feed
"immortal")
979 (setq num-new
(newsticker--stat-num-items-total 'immortal
)))
980 ((string= feed
"obsolete")
981 (setq num-new
(newsticker--stat-num-items-total 'obsolete
)))
982 ((string= feed
"all")
983 (setq num-new
(newsticker--stat-num-items-total))))
984 (setq num-new
(newsticker--stat-num-items-for-group
985 (intern feed
) 'new
'immortal
))))
988 (defun newsticker--treeview-tree-update-tag (w &optional recursive
990 "Update tag for tree widget W.
991 If RECURSIVE is non-nil recursively update parent widgets as
992 well. Argument IGNORE is ignored. Note that this function, if
993 called recursively, makes w invalid. You should keep w's nt-id in
995 (let* ((parent (widget-get w
:parent
))
996 (feed (or (widget-get w
:nt-feed
) (widget-get parent
:nt-feed
)))
997 (vfeed (or (widget-get w
:nt-vfeed
) (widget-get parent
:nt-vfeed
)))
998 (nt-id (or (widget-get w
:nt-id
) (widget-get parent
:nt-id
)))
999 (num-new (newsticker--treeview-count-node-items (or feed vfeed
)
1001 (tag (newsticker--treeview-tree-get-tag feed vfeed nt-id
))
1002 (n (widget-get w
:node
)))
1005 (newsticker--treeview-tree-update-tag parent
)))
1008 (widget-put n
:tag tag
))
1009 (widget-put w
:num-new num-new
)
1010 (widget-put w
:tag tag
)
1011 (when (marker-position (widget-get w
:from
))
1013 (notify (widget-get w
:notify
)))
1014 ;; FIXME: This moves point!!!!
1016 (set-buffer (newsticker--treeview-tree-buffer))
1017 (widget-value-set w
(widget-value w
)))
1020 (defun newsticker--treeview-tree-do-update-tags (widget)
1021 "Actually recursively update tags for WIDGET."
1023 (let ((children (widget-get widget
:children
)))
1024 (dolist (w children
)
1025 (newsticker--treeview-tree-do-update-tags w
))
1026 (newsticker--treeview-tree-update-tag widget
))))
1028 (defun newsticker--treeview-tree-update-tags (&rest ignore
)
1029 "Update all tags of all trees.
1030 Arguments IGNORE are ignored."
1031 (save-current-buffer
1032 (set-buffer (newsticker--treeview-tree-buffer))
1033 (let ((inhibit-read-only t
))
1034 (newsticker--treeview-tree-do-update-tags
1035 newsticker--treeview-feed-tree
)
1036 (newsticker--treeview-tree-do-update-tags
1037 newsticker--treeview-vfeed-tree
))
1038 (tree-widget-set-theme "folder")))
1040 (defun newsticker--treeview-tree-update-highlight ()
1041 "Update highlight in tree buffer."
1042 (let ((pos (widget-get (newsticker--treeview-get-current-node) :from
)))
1043 (unless (or (integerp pos
) (and (markerp pos
) (marker-position pos
)))
1044 (setq pos
(widget-get (widget-get
1045 (newsticker--treeview-get-current-node)
1047 (when (or (integerp pos
) (and (markerp pos
) (marker-position pos
)))
1049 (set-buffer (newsticker--treeview-tree-buffer))
1051 (move-overlay newsticker--tree-selection-overlay
1052 (save-excursion (beginning-of-line) (point))
1053 (save-excursion (end-of-line) (1+ (point)))
1055 (if (window-live-p (newsticker--treeview-tree-window))
1056 (set-window-point (newsticker--treeview-tree-window) pos
)))))
1058 ;; ======================================================================
1060 ;; ======================================================================
1061 ;;(makunbound 'newsticker-treeview-tool-bar-map)
1062 (defvar newsticker-treeview-tool-bar-map
1063 (if (featurep 'xemacs
)
1065 (if (boundp 'tool-bar-map
)
1066 (let ((tool-bar-map (make-sparse-keymap)))
1067 (define-key tool-bar-map
[newsticker-sep-1
]
1068 (list 'menu-item
"--double-line"))
1069 (define-key tool-bar-map
[newsticker-browse-url
]
1070 (list 'menu-item
"newsticker-browse-url"
1071 'newsticker-browse-url
1073 :help
"Browse URL for item at point"
1074 :image newsticker--browse-image
))
1075 (define-key tool-bar-map
[newsticker-buffer-force-update
]
1076 (list 'menu-item
"newsticker-treeview-update"
1077 'newsticker-treeview-update
1079 :help
"Update newsticker buffer"
1080 :image newsticker--update-image
1082 (define-key tool-bar-map
[newsticker-get-all-news
]
1083 (list 'menu-item
"newsticker-get-all-news" 'newsticker-get-all-news
1085 :help
"Get news for all feeds"
1086 :image newsticker--get-all-image
))
1087 (define-key tool-bar-map
[newsticker-mark-item-at-point-as-read
]
1088 (list 'menu-item
"newsticker-treeview-mark-item-old"
1089 'newsticker-treeview-mark-item-old
1091 :image newsticker--mark-read-image
1092 :help
"Mark current item as read"
1093 ;;:enable '(newsticker-item-not-old-p) FIXME
1095 (define-key tool-bar-map
[newsticker-mark-item-at-point-as-immortal
]
1096 (list 'menu-item
"newsticker-treeview-toggle-item-immortal"
1097 'newsticker-treeview-toggle-item-immortal
1099 :image newsticker--mark-immortal-image
1100 :help
"Toggle current item as immortal"
1102 ;;'(newsticker-item-not-immortal-p) FIXME
1104 (define-key tool-bar-map
[newsticker-next-feed
]
1105 (list 'menu-item
"newsticker-treeview-next-feed"
1106 'newsticker-treeview-next-feed
1108 :help
"Go to next feed"
1109 :image newsticker--next-feed-image
1111 ;;'(newsticker-next-feed-available-p) FIXME
1113 (define-key tool-bar-map
[newsticker-treeview-next-item
]
1114 (list 'menu-item
"newsticker-treeview-next-item"
1115 'newsticker-treeview-next-item
1117 :help
"Go to next item"
1118 :image newsticker--next-item-image
1120 ;;'(newsticker-next-item-available-p) FIXME
1122 (define-key tool-bar-map
[newsticker-treeview-prev-item
]
1123 (list 'menu-item
"newsticker-treeview-prev-item"
1124 'newsticker-treeview-prev-item
1126 :help
"Go to previous item"
1127 :image newsticker--previous-item-image
1129 ;;'(newsticker-previous-item-available-p) FIXME
1131 (define-key tool-bar-map
[newsticker-treeview-prev-feed
]
1132 (list 'menu-item
"newsticker-treeview-prev-feed"
1133 'newsticker-treeview-prev-feed
1135 :help
"Go to previous feed"
1136 :image newsticker--previous-feed-image
1138 ;;'(newsticker-previous-feed-available-p) FIXME
1140 ;; standard icons / actions
1141 (tool-bar-add-item "close"
1142 'newsticker-treeview-quit
1143 'newsticker-treeview-quit
1144 :help
"Close newsticker")
1145 (tool-bar-add-item "preferences"
1146 'newsticker-customize
1147 'newsticker-customize
1148 :help
"Customize newsticker")
1151 ;; ======================================================================
1153 ;; ======================================================================
1155 (defun newsticker-treeview-mouse-browse-url (event)
1156 "Call `browse-url' for the link of the item at which the EVENT occurred."
1159 (switch-to-buffer (window-buffer (posn-window (event-end event
))))
1160 (let ((url (get-text-property (posn-point (event-end event
))
1164 (if newsticker-automatically-mark-visited-items-as-old
1165 (newsticker-treeview-mark-item-old))))))
1167 (defun newsticker-treeview-browse-url ()
1168 "Call `browse-url' for the link of the item at point."
1171 (set-buffer (newsticker--treeview-list-buffer))
1172 (let ((url (get-text-property (point) :nt-link
)))
1175 (if newsticker-automatically-mark-visited-items-as-old
1176 (newsticker-treeview-mark-item-old))))))
1178 (defun newsticker--treeview-buffer-init ()
1179 "Initialize all treeview buffers."
1180 (setq newsticker--treeview-buffers nil
)
1181 (add-to-list 'newsticker--treeview-buffers
1182 (get-buffer-create "*Newsticker Tree*") t
)
1183 (add-to-list 'newsticker--treeview-buffers
1184 (get-buffer-create "*Newsticker List*") t
)
1185 (add-to-list 'newsticker--treeview-buffers
1186 (get-buffer-create "*Newsticker Item*") t
)
1188 (unless newsticker--selection-overlay
1190 (set-buffer (newsticker--treeview-list-buffer))
1191 (setq newsticker--selection-overlay
(make-overlay (point-min)
1193 (overlay-put newsticker--selection-overlay
'face
1194 'newsticker-treeview-selection-face
)))
1195 (unless newsticker--tree-selection-overlay
1197 (set-buffer (newsticker--treeview-tree-buffer))
1198 (setq newsticker--tree-selection-overlay
(make-overlay (point-min)
1200 (overlay-put newsticker--tree-selection-overlay
'face
1201 'newsticker-treeview-selection-face
)))
1203 (newsticker--treeview-tree-update)
1204 (newsticker--treeview-list-update t
)
1205 (newsticker--treeview-item-update))
1207 (defun newsticker-treeview-update ()
1208 "Update all treeview buffers and windows.
1209 Note: does not update the layout."
1211 (newsticker--group-manage-orphan-feeds)
1212 (newsticker--treeview-list-update t
)
1213 (newsticker--treeview-item-update)
1214 (newsticker--treeview-tree-update-tags)
1215 (cond (newsticker--treeview-current-feed
1216 (newsticker--treeview-list-items newsticker--treeview-current-feed
))
1217 (newsticker--treeview-current-vfeed
1218 (newsticker--treeview-list-items-with-age
1219 (intern newsticker--treeview-current-vfeed
))))
1220 (newsticker--treeview-tree-update-highlight)
1221 (newsticker--treeview-list-update-highlight))
1223 (defun newsticker-treeview-quit ()
1224 "Quit newsticker treeview."
1226 (setq newsticker--sentinel-callback nil
)
1227 (bury-buffer "*Newsticker Tree*")
1228 (bury-buffer "*Newsticker List*")
1229 (bury-buffer "*Newsticker Item*")
1230 (set-window-configuration newsticker--saved-window-config
)
1231 (when newsticker--frame
1232 (if (frame-live-p newsticker--frame
)
1233 (delete-frame newsticker--frame
))
1234 (setq newsticker--frame nil
))
1235 (newsticker-treeview-save))
1237 (defun newsticker-treeview-save ()
1238 "Save newsticker data including treeview settings."
1241 (let ((coding-system-for-write 'utf-8
)
1242 (buf (find-file-noselect (concat newsticker-dir
"/groups"))))
1245 (setq buffer-undo-list t
)
1247 (insert ";; -*- coding: utf-8 -*-\n")
1248 (insert (prin1-to-string newsticker-groups
))
1251 (defun newsticker--treeview-load ()
1252 "Load treeview settings."
1253 (let* ((coding-system-for-read 'utf-8
)
1255 (or (and (file-exists-p newsticker-groups-filename
)
1257 (format "Old newsticker groups (%s) file exists. Read it? "
1258 newsticker-groups-filename
))
1259 newsticker-groups-filename
)
1260 (concat newsticker-dir
"/groups")))
1261 (buf (and (file-exists-p filename
)
1262 (find-file-noselect filename
))))
1265 (goto-char (point-min))
1267 (setq newsticker-groups
(read buf
))
1269 (message "Error while reading newsticker groups file!")
1270 (setq newsticker-groups nil
))))))
1273 (defun newsticker-treeview-scroll-item ()
1274 "Scroll current item."
1276 (save-selected-window
1277 (select-window (newsticker--treeview-item-window) t
)
1280 (defun newsticker-treeview-show-item ()
1281 "Show current item."
1283 (newsticker--treeview-restore-layout)
1284 (newsticker--treeview-list-update-highlight)
1286 (set-buffer (newsticker--treeview-list-buffer))
1288 (let ((item (get-text-property (point) :nt-item
))
1289 (feed (get-text-property (point) :nt-feed
)))
1290 (newsticker--treeview-item-show item feed
)))
1291 (newsticker--treeview-tree-update-tag
1292 (newsticker--treeview-get-current-node) t
)
1293 (newsticker--treeview-tree-update-highlight))
1295 (defun newsticker-treeview-next-item ()
1296 "Move to next item."
1298 (newsticker--treeview-restore-layout)
1299 (save-current-buffer
1300 (set-buffer (newsticker--treeview-list-buffer))
1301 (if (newsticker--treeview-list-highlight-start)
1305 (newsticker-treeview-show-item))
1307 (defun newsticker-treeview-prev-item ()
1308 "Move to previous item."
1310 (newsticker--treeview-restore-layout)
1311 (save-current-buffer
1312 (set-buffer (newsticker--treeview-list-buffer))
1314 (newsticker-treeview-show-item))
1316 (defun newsticker-treeview-next-new-or-immortal-item (&optional
1317 current-item-counts
)
1318 "Move to next new or immortal item.
1319 Will move to next feed until an item is found. Will not move if
1320 optional argument CURRENT-ITEM-COUNTS is t and current item is
1323 (newsticker--treeview-restore-layout)
1324 (newsticker--treeview-list-clear-highlight)
1325 (unless (catch 'found
1326 (let ((move (not current-item-counts
)))
1328 (save-current-buffer
1329 (set-buffer (newsticker--treeview-list-buffer))
1330 (when move
(forward-line 1)
1333 (throw 'found nil
))))
1334 (when (memq (newsticker--age
1335 (newsticker--treeview-get-selected-item))
1337 (newsticker-treeview-show-item)
1340 (when (newsticker-treeview-next-feed t
)
1341 (newsticker-treeview-next-new-or-immortal-item t
))))
1343 (defun newsticker-treeview-prev-new-or-immortal-item ()
1344 "Move to previous new or immortal item.
1345 Will move to previous feed until an item is found."
1347 (newsticker--treeview-restore-layout)
1348 (newsticker--treeview-list-clear-highlight)
1349 (unless (catch 'found
1351 (save-current-buffer
1352 (set-buffer (newsticker--treeview-list-buffer))
1356 (when (memq (newsticker--age
1357 (newsticker--treeview-get-selected-item))
1359 (newsticker-treeview-show-item)
1362 (throw 'found nil
))))
1363 (when (newsticker-treeview-prev-feed t
)
1364 (set-buffer (newsticker--treeview-list-buffer))
1365 (goto-char (point-max))
1366 (newsticker-treeview-prev-new-or-immortal-item))))
1368 (defun newsticker--treeview-get-selected-item ()
1369 "Return item that is currently selected in list buffer."
1371 (set-buffer (newsticker--treeview-list-buffer))
1373 (get-text-property (point) :nt-item
)))
1375 (defun newsticker-treeview-mark-item-old (&optional dont-proceed
)
1376 "Mark current item as old unless it is obsolete.
1377 Move to next item unless DONT-PROCEED is non-nil."
1379 (let ((item (newsticker--treeview-get-selected-item)))
1380 (unless (eq (newsticker--age item
) 'obsolete
)
1381 (newsticker--treeview-mark-item item
'old
)))
1382 (unless dont-proceed
1383 (newsticker-treeview-next-item)))
1385 (defun newsticker-treeview-toggle-item-immortal ()
1386 "Toggle immortality of current item."
1388 (let* ((item (newsticker--treeview-get-selected-item))
1389 (new-age (if (eq (newsticker--age item
) 'immortal
)
1392 (newsticker--treeview-mark-item item new-age
)
1393 (newsticker-treeview-next-item)))
1395 (defun newsticker--treeview-mark-item (item new-age
)
1396 "Mark ITEM with NEW-AGE."
1398 (setcar (nthcdr 4 item
) new-age
)
1399 ;; clean up ticker FIXME
1401 (newsticker--cache-save-feed
1402 (newsticker--cache-get-feed (intern newsticker--treeview-current-feed
)))
1403 (newsticker--treeview-tree-do-update-tags newsticker--treeview-vfeed-tree
))
1405 (defun newsticker-treeview-mark-list-items-old ()
1406 "Mark all listed items as old."
1408 (let ((current-feed (or newsticker--treeview-current-feed
1409 newsticker--treeview-current-vfeed
)))
1411 (set-buffer (newsticker--treeview-list-buffer))
1412 (goto-char (point-min))
1414 (let ((item (get-text-property (point) :nt-item
)))
1415 (unless (memq (newsticker--age item
) '(immortal obsolete
))
1416 (newsticker--treeview-mark-item item
'old
)))
1418 (newsticker--treeview-tree-update-tags)
1420 (newsticker-treeview-jump current-feed
))))
1422 (defun newsticker-treeview-save-item ()
1423 "Save current item."
1425 (newsticker-save-item (or newsticker--treeview-current-feed
1426 newsticker--treeview-current-vfeed
)
1427 (newsticker--treeview-get-selected-item)))
1429 (defun newsticker-treeview-browse-url-item ()
1430 "Convert current item to HTML and call `browse-url' on result."
1432 (newsticker-browse-url-item (or newsticker--treeview-current-feed
1433 newsticker--treeview-current-vfeed
)
1434 (newsticker--treeview-get-selected-item)))
1436 (defun newsticker--treeview-set-current-node (node)
1437 "Make NODE the current node."
1439 (set-buffer (newsticker--treeview-tree-buffer))
1440 (setq newsticker--treeview-current-node-id
1441 (widget-get node
:nt-id
))
1442 (setq newsticker--treeview-current-feed
(widget-get node
:nt-feed
))
1443 (setq newsticker--treeview-current-vfeed
(widget-get node
:nt-vfeed
))
1444 (newsticker--treeview-tree-update-highlight)))
1446 (defun newsticker--treeview-get-first-child (node)
1447 "Get first child of NODE."
1448 (let ((children (widget-get node
:children
)))
1453 (defun newsticker--treeview-get-second-child (node)
1454 "Get scond child of NODE."
1455 (let ((children (widget-get node
:children
)))
1457 (car (cdr children
))
1460 (defun newsticker--treeview-get-last-child (node)
1461 "Get last child of NODE."
1462 ;;(message "newsticker--treeview-get-last-child %s" (widget-get node :tag))
1463 (let ((children (widget-get node
:children
)))
1465 (car (reverse children
))
1468 (defun newsticker--treeview-get-feed-vfeed (node)
1469 "Get (virtual) feed of NODE."
1470 (or (widget-get node
:nt-feed
) (widget-get node
:nt-vfeed
)))
1472 (defun newsticker--treeview-get-next-sibling (node)
1473 "Get next sibling of NODE."
1474 (let ((parent (widget-get node
:parent
)))
1476 (let ((children (widget-get parent
:children
)))
1478 (if (newsticker--treeview-nodes-eq (car children
) node
)
1479 (throw 'found
(car (cdr children
))))
1480 (setq children
(cdr children
)))))))
1482 (defun newsticker--treeview-get-prev-sibling (node)
1483 "Get previous sibling of NODE."
1484 (let ((parent (widget-get node
:parent
)))
1486 (let ((children (widget-get parent
:children
))
1489 (if (and (newsticker--treeview-nodes-eq (car children
) node
)
1490 (widget-get prev
:nt-id
))
1491 (throw 'found prev
))
1492 (setq prev
(car children
))
1493 (setq children
(cdr children
)))))))
1495 (defun newsticker--treeview-get-next-uncle (node)
1496 "Get next uncle of NODE, i.e. parent's next sibling."
1497 (let* ((parent (widget-get node
:parent
))
1498 (grand-parent (widget-get parent
:parent
)))
1500 (let ((uncles (widget-get grand-parent
:children
)))
1502 (if (newsticker--treeview-nodes-eq (car uncles
) parent
)
1503 (throw 'found
(car (cdr uncles
))))
1504 (setq uncles
(cdr uncles
)))))))
1506 (defun newsticker--treeview-get-prev-uncle (node)
1507 "Get previous uncle of NODE, i.e. parent's previous sibling."
1508 (let* ((parent (widget-get node
:parent
))
1509 (grand-parent (widget-get parent
:parent
)))
1511 (let ((uncles (widget-get grand-parent
:children
))
1514 (if (newsticker--treeview-nodes-eq (car uncles
) parent
)
1515 (throw 'found prev
))
1516 (setq prev
(car uncles
))
1517 (setq uncles
(cdr uncles
)))))))
1519 (defun newsticker--treeview-get-other-tree ()
1521 (if (and (newsticker--treeview-get-current-node)
1522 (widget-get (newsticker--treeview-get-current-node) :nt-feed
))
1523 newsticker--treeview-vfeed-tree
1524 newsticker--treeview-feed-tree
))
1526 (defun newsticker--treeview-activate-node (node &optional backward
)
1528 If NODE is a tree widget the node's first subnode is activated.
1529 If BACKWARD is non-nil the last subnode of the previous sibling
1531 (newsticker--treeview-set-current-node node
)
1532 (save-current-buffer
1533 (set-buffer (newsticker--treeview-tree-buffer))
1534 (cond ((eq (widget-type node
) 'tree-widget
)
1535 (unless (widget-get node
:open
)
1536 (widget-put node
:open nil
)
1537 (widget-apply-action node
))
1538 (newsticker--treeview-activate-node
1540 (newsticker--treeview-get-last-child node
)
1541 (newsticker--treeview-get-second-child node
))))
1543 (widget-apply-action node
)))))
1545 (defun newsticker-treeview-next-feed (&optional stay-in-tree
)
1547 Optional argument STAY-IN-TREE prevents moving from real feed
1548 tree to virtual feed tree or vice versa.
1549 Return t if a new feed was activated, nil otherwise."
1551 (newsticker--treeview-restore-layout)
1552 (let ((cur (newsticker--treeview-get-current-node))
1554 (message "newsticker-treeview-next-feed from %s"
1555 (widget-get cur
:tag
))
1560 (or (newsticker--treeview-get-next-sibling cur
)
1561 (newsticker--treeview-get-next-uncle cur
)
1562 (and (not stay-in-tree
)
1563 (newsticker--treeview-get-other-tree)))
1564 (car (widget-get newsticker--treeview-feed-tree
:children
))))
1567 (newsticker--treeview-activate-node new
)
1568 (newsticker--treeview-tree-update-highlight)
1573 (defun newsticker-treeview-prev-feed (&optional stay-in-tree
)
1574 "Move to previous feed.
1575 Optional argument STAY-IN-TREE prevents moving from real feed
1576 tree to virtual feed tree or vice versa.
1577 Return t if a new feed was activated, nil otherwise."
1579 (newsticker--treeview-restore-layout)
1580 (let ((cur (newsticker--treeview-get-current-node))
1582 (message "newsticker-treeview-prev-feed from %s"
1583 (widget-get cur
:tag
))
1588 (or (newsticker--treeview-get-prev-sibling cur
)
1589 (newsticker--treeview-get-prev-uncle cur
)
1590 (and (not stay-in-tree
)
1591 (newsticker--treeview-get-other-tree)))
1592 (car (widget-get newsticker--treeview-feed-tree
:children
))))
1595 (newsticker--treeview-activate-node new t
)
1596 (newsticker--treeview-tree-update-highlight)
1601 (defun newsticker-treeview-next-page ()
1602 "Scroll item buffer."
1604 (save-selected-window
1605 (select-window (newsticker--treeview-item-window) t
)
1609 (goto-char (point-min))))))
1612 (defun newsticker--treeview-unfold-node (feed-name)
1613 "Recursively show subtree above the node that represents FEED-NAME."
1614 (let ((node (newsticker--treeview-get-node-of-feed feed-name
)))
1616 (let* ((group-name (or (car (newsticker--group-find-group-for-feed
1618 (newsticker--group-get-parent-group
1620 (newsticker--treeview-unfold-node group-name
))
1621 (setq node
(newsticker--treeview-get-node-of-feed feed-name
)))
1624 (set-buffer (newsticker--treeview-tree-buffer))
1625 (widget-put node
:nt-selected t
)
1626 (widget-apply-action node
)
1627 (newsticker--treeview-set-current-node node
)))))
1629 (defun newsticker-treeview-jump (feed-name)
1630 "Jump to feed FEED-NAME in newsticker treeview."
1632 (list (let ((completion-ignore-case t
))
1635 (mapcar 'car
(append newsticker-url-list
1636 newsticker-url-list-defaults
))
1638 (newsticker--treeview-unfold-node feed-name
))
1640 ;; ======================================================================
1642 ;; ======================================================================
1643 (defun newsticker--group-do-find-group-for-feed (feed-name node
)
1644 "Recursively find FEED-NAME in NODE."
1645 (if (member feed-name
(cdr node
))
1649 (newsticker--group-do-find-group-for-feed feed-name n
)))
1652 (defun newsticker--group-find-group-for-feed (feed-name)
1653 "Find group containing FEED-NAME."
1655 (newsticker--group-do-find-group-for-feed feed-name
1659 (defun newsticker--group-do-get-group (name node
)
1660 "Recursively find group with NAME below NODE."
1661 (if (string= name
(car node
))
1665 (newsticker--group-do-get-group name n
)))
1668 (defun newsticker--group-get-group (name)
1669 "Find group with NAME."
1673 (newsticker--group-do-get-group name n
)))
1677 (defun newsticker--group-do-get-parent-group (name node parent
)
1678 "Recursively find parent group for NAME from NODE which is a child of PARENT."
1679 (if (string= name
(car node
))
1680 (throw 'found parent
)
1683 (newsticker--group-do-get-parent-group name n
(car node
))))
1686 (defun newsticker--group-get-parent-group (name)
1687 "Find parent group for group named NAME."
1691 (newsticker--group-do-get-parent-group
1692 name n
(car newsticker-groups
))))
1697 (defun newsticker--group-get-subgroups (group &optional recursive
)
1698 "Return list of subgroups for GROUP.
1699 If RECURSIVE is non-nil recursively get subgroups and return a nested list."
1703 (setq result
(cons (car n
) result
))
1704 (let ((subgroups (newsticker--group-get-subgroups n recursive
)))
1706 (setq result
(append subgroups result
))))))
1710 (defun newsticker--group-all-groups ()
1711 "Return nested list of all groups."
1712 (newsticker--group-get-subgroups newsticker-groups t
))
1714 (defun newsticker--group-get-feeds (group &optional recursive
)
1715 "Return list of all feeds in GROUP.
1716 If RECURSIVE is non-nil recursively get feeds of subgroups and
1717 return a nested list."
1721 (setq result
(cons n result
))
1723 (let ((subfeeds (newsticker--group-get-feeds n t
)))
1725 (setq result
(append subfeeds result
)))))))
1729 (defun newsticker-group-add-group (name parent
)
1730 "Add group NAME to group PARENT."
1732 (list (read-string "Group Name: ")
1733 (let ((completion-ignore-case t
))
1734 (completing-read "Parent Group: " (newsticker--group-all-groups)
1736 (if (newsticker--group-get-group name
)
1737 (error "Group %s exists already" name
))
1738 (let ((p (if (and parent
(not (string= parent
"")))
1739 (newsticker--group-get-group parent
)
1740 newsticker-groups
)))
1742 (error "Parent %s does not exist" parent
))
1743 (setcdr p
(cons (list name
) (cdr p
))))
1744 (newsticker--treeview-tree-update))
1746 (defun newsticker-group-move-feed (name group-name
&optional no-update
)
1747 "Move feed NAME to group GROUP-NAME.
1748 Update teeview afterwards unless NO-UPDATE is non-nil."
1750 (let ((completion-ignore-case t
))
1751 (list (completing-read "Feed Name: "
1752 (mapcar 'car newsticker-url-list
)
1753 nil t newsticker--treeview-current-feed
)
1754 (completing-read "Group Name: " (newsticker--group-all-groups)
1756 (let ((group (if (and group-name
(not (string= group-name
"")))
1757 (newsticker--group-get-group group-name
)
1758 newsticker-groups
)))
1760 (error "Group %s does not exist" group-name
))
1761 (while (let ((old-group
1762 (newsticker--group-find-group-for-feed name
)))
1764 (delete name old-group
))
1766 (setcdr group
(cons name
(cdr group
)))
1768 (newsticker--treeview-tree-update)
1769 (newsticker-treeview-update))))
1771 (defun newsticker-group-delete-group (name)
1772 "Remove group NAME."
1774 (let ((completion-ignore-case t
))
1775 (list (completing-read "Group Name: " (newsticker--group-all-groups)
1777 (let* ((g (newsticker--group-get-group name
))
1778 (p (or (newsticker--group-get-parent-group name
)
1779 newsticker-groups
)))
1781 (error "Group %s does not exist" name
))
1783 (newsticker--treeview-tree-update))
1785 (defun newsticker--count-groups (group)
1786 "Recursively count number of subgroups of GROUP."
1790 (setq result
(+ result
(newsticker--count-groups g
)))))
1794 (defun newsticker--count-grouped-feeds (group)
1795 "Recursively count number of feeds in GROUP and its subgroups."
1799 (setq result
(+ result
(newsticker--count-grouped-feeds g
)))
1800 (setq result
(1+ result
))))
1804 (defun newsticker--group-remove-obsolete-feeds (group)
1805 "Recursively remove obselete feeds from GROUP."
1807 (urls (append newsticker-url-list newsticker-url-list-defaults
)))
1811 (newsticker--group-remove-obsolete-feeds g
)))
1813 (setq result
(cons sub-groups result
))))
1815 (setq result
(cons g result
)))))
1818 (cons (car group
) (reverse result
))
1821 (defun newsticker--group-manage-orphan-feeds ()
1822 "Put unmanaged feeds into `newsticker-groups'.
1823 Remove obsolete feeds as well."
1824 (unless newsticker-groups
1825 (setq newsticker-groups
'("Feeds")))
1826 (let ((new-feed nil
)
1827 (grouped-feeds (newsticker--count-grouped-feeds newsticker-groups
)))
1829 (unless (newsticker--group-find-group-for-feed (car f
))
1831 (newsticker-group-move-feed (car f
) nil t
)))
1832 (append newsticker-url-list-defaults newsticker-url-list
))
1833 (setq newsticker-groups
1834 (newsticker--group-remove-obsolete-feeds newsticker-groups
))
1836 (not (= grouped-feeds
1837 (newsticker--count-grouped-feeds newsticker-groups
))))
1838 (newsticker--treeview-tree-update))))
1840 ;; ======================================================================
1842 ;; ======================================================================
1843 (defun newsticker--treeview-create-groups-menu (group-list
1845 "Create menu for GROUP-LIST omitting EXCLUDED-GROUP."
1846 (let ((menu (make-sparse-keymap (if (stringp (car group-list
))
1848 "Move to group..."))))
1851 (let ((title (if (stringp (car g
))
1853 "Move to group...")))
1854 (unless (eq g excluded-group
)
1855 (define-key menu
(vector (intern title
))
1856 (list 'menu-item title
1857 (newsticker--treeview-create-groups-menu
1858 (cdr g
) excluded-group
)))))))
1859 (reverse group-list
))
1862 (defun newsticker--treeview-create-tree-menu (feed-name)
1863 "Create tree menu for FEED-NAME."
1864 (let ((menu (make-sparse-keymap feed-name
)))
1865 (define-key menu
[newsticker-treeview-mark-list-items-old
]
1866 (list 'menu-item
"Mark all items old"
1867 'newsticker-treeview-mark-list-items-old
))
1868 (define-key menu
[move]
1869 (list 'menu-item "Move to group..."
1870 (newsticker--treeview-create-groups-menu
1872 (newsticker--group-get-group feed-name))))
1875 (defvar newsticker-treeview-list-menu
1876 (let ((menu (make-sparse-keymap "Newsticker List")))
1877 (define-key menu [newsticker-treeview-mark-list-items-old]
1878 (list 'menu-item "Mark all items old"
1879 'newsticker-treeview-mark-list-items-old))
1881 "Map for newsticker tree menu.")
1883 (defvar newsticker-treeview-mode-map
1884 (let ((map (make-sparse-keymap 'newsticker-treeview-mode-map)))
1885 (define-key map " " 'newsticker-treeview-next-page)
1886 (define-key map "a" 'newsticker-add-url)
1887 (define-key map "b" 'newsticker-treeview-browse-url-item)
1888 (define-key map "F" 'newsticker-treeview-prev-feed)
1889 (define-key map "f" 'newsticker-treeview-next-feed)
1890 (define-key map "g" 'newsticker-treeview-get-news)
1891 (define-key map "G" 'newsticker-get-all-news)
1892 (define-key map "i" 'newsticker-treeview-toggle-item-immortal)
1893 (define-key map "j" 'newsticker-treeview-jump)
1894 (define-key map "n" 'newsticker-treeview-next-item)
1895 (define-key map "N" 'newsticker-treeview-next-new-or-immortal-item)
1896 (define-key map "O" 'newsticker-treeview-mark-list-items-old)
1897 (define-key map "o" 'newsticker-treeview-mark-item-old)
1898 (define-key map "p" 'newsticker-treeview-prev-item)
1899 (define-key map "P" 'newsticker-treeview-prev-new-or-immortal-item)
1900 (define-key map "q" 'newsticker-treeview-quit)
1901 (define-key map "S" 'newsticker-treeview-save-item)
1902 (define-key map "s" 'newsticker-treeview-save)
1903 (define-key map "u" 'newsticker-treeview-update)
1904 (define-key map "v" 'newsticker-treeview-browse-url)
1905 ;;(define-key map "\n" 'newsticker-treeview-scroll-item)
1906 ;;(define-key map "\C-m" 'newsticker-treeview-scroll-item)
1907 (define-key map "\M-m" 'newsticker-group-move-feed)
1908 (define-key map "\M-a" 'newsticker-group-add-group)
1910 "Mode map for newsticker treeview.")
1912 (defun newsticker-treeview-mode ()
1913 "Major mode for Newsticker Treeview.
1914 \\{newsticker-treeview-mode-map}"
1915 (kill-all-local-variables)
1916 (use-local-map newsticker-treeview-mode-map)
1917 (setq major-mode 'newsticker-treeview-mode)
1918 (setq mode-name "Newsticker TV")
1919 (if (boundp 'tool-bar-map)
1920 (set (make-local-variable 'tool-bar-map)
1921 newsticker-treeview-tool-bar-map))
1922 (setq buffer-read-only t
1925 (define-derived-mode newsticker-treeview-list-mode newsticker-treeview-mode
1927 (let ((header (concat
1928 (propertize " " 'display '(space :align-to 0))
1929 (newsticker-treeview-list-make-sort-button "*" 'sort-by-age)
1930 (propertize " " 'display '(space :align-to 2))
1931 (if newsticker--treeview-list-show-feed
1933 (propertize " " 'display '(space :align-to 12)))
1935 (newsticker-treeview-list-make-sort-button "Date"
1937 (if newsticker--treeview-list-show-feed
1938 (propertize " " 'display '(space :align-to 28))
1939 (propertize " " 'display '(space :align-to 18)))
1940 (newsticker-treeview-list-make-sort-button "Title"
1942 (setq header-line-format header))
1943 (define-key newsticker-treeview-list-mode-map [down-mouse-3]
1944 newsticker-treeview-list-menu))
1946 (defun newsticker-treeview-tree-click (event)
1947 "Handle click EVENT on a tag in the newsticker tree."
1949 (newsticker--treeview-restore-layout)
1951 (switch-to-buffer (window-buffer (posn-window (event-end event))))
1952 (newsticker-treeview-tree-do-click (posn-point (event-end event)))))
1954 (defun newsticker-treeview-tree-do-click (&optional pos event)
1955 "Actually handle click event.
1956 POS gives the position where EVENT occurred."
1958 (let* ((pos (or pos (point)))
1959 (nt-id (get-text-property pos :nt-id))
1960 (item (get-text-property pos :nt-item)))
1962 ;; click in list buffer
1963 (newsticker-treeview-show-item))
1965 ;; click in tree buffer
1966 (let ((w (newsticker--treeview-get-node nt-id)))
1968 (newsticker--treeview-tree-update-tag w t t)
1969 (setq w (newsticker--treeview-get-node nt-id))
1970 (widget-put w :nt-selected t)
1971 (widget-apply w :action event)
1972 (newsticker--treeview-set-current-node w))))))
1973 (newsticker--treeview-tree-update-highlight))
1975 (defun newsticker--treeview-restore-layout ()
1976 "Restore treeview buffers."
1979 (let ((win (nth i newsticker--treeview-windows))
1980 (buf (nth i newsticker--treeview-buffers)))
1981 (unless (window-live-p win)
1982 (newsticker--treeview-window-init)
1983 (newsticker--treeview-buffer-init)
1985 (unless (eq (window-buffer win) buf)
1986 (set-window-buffer win buf t))))))
1988 (defun newsticker--treeview-frame-init ()
1989 "Initialize treeview frame."
1990 (when newsticker-treeview-own-frame
1991 (unless (and newsticker--frame (frame-live-p newsticker--frame))
1992 (setq newsticker--frame (make-frame '((name . "Newsticker")))))
1993 (select-frame-set-input-focus newsticker--frame)
1994 (raise-frame newsticker--frame)))
1996 (defun newsticker--treeview-window-init ()
1997 "Initialize treeview windows."
1998 (setq newsticker--saved-window-config (current-window-configuration))
1999 (setq newsticker--treeview-windows nil)
2000 (setq newsticker--treeview-buffers nil)
2001 (delete-other-windows)
2002 (split-window-horizontally newsticker-treeview-treewindow-width)
2003 (add-to-list 'newsticker--treeview-windows (selected-window) t)
2005 (split-window-vertically newsticker-treeview-listwindow-height)
2006 (add-to-list 'newsticker--treeview-windows (selected-window) t)
2008 (add-to-list 'newsticker--treeview-windows (selected-window) t)
2012 (defun newsticker-treeview ()
2013 "Start newsticker treeview."
2015 (newsticker--treeview-load)
2016 (setq newsticker--sentinel-callback 'newsticker-treeview-update)
2017 (newsticker--treeview-frame-init)
2018 (newsticker--treeview-window-init)
2019 (newsticker--treeview-buffer-init)
2020 (newsticker--group-manage-orphan-feeds)
2021 (newsticker--treeview-set-current-node newsticker--treeview-feed-tree)
2022 (newsticker-start t) ;; will start only if not running
2023 (newsticker-treeview-update)
2024 (newsticker--treeview-item-show-text
2026 "Welcome to newsticker!"))
2028 (defun newsticker-treeview-get-news ()
2029 "Get news for current feed."
2031 (when newsticker--treeview-current-feed
2032 (newsticker-get-news newsticker--treeview-current-feed)))
2034 (provide 'newsticker-treeview)
2036 ;; arch-tag: 5dbaff48-1f3e-4fc6-8ebd-e966fc90d2d4
2037 ;;; newst-treeview.el ends here