1 ;;; newst-treeview.el --- Treeview frontend for newsticker.
3 ;; Copyright (C) 2008-2014 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 ;; Package: newsticker
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 ;; ======================================================================
38 ;; ======================================================================
40 (require 'newst-reader
)
42 (require 'tree-widget
)
45 ;; ======================================================================
47 ;; ======================================================================
48 (defgroup newsticker-treeview nil
49 "Settings for the tree view reader."
50 :group
'newsticker-reader
)
52 (defface newsticker-treeview-face
53 '((((class color
) (background dark
)) :foreground
"white")
54 (((class color
) (background light
)) :foreground
"black"))
55 "Face for newsticker tree."
56 :group
'newsticker-treeview
)
58 (defface newsticker-treeview-new-face
59 '((t :inherit newsticker-treeview-face
:weight bold
))
60 "Face for newsticker tree."
61 :group
'newsticker-treeview
)
63 (defface newsticker-treeview-old-face
64 '((t :inherit newsticker-treeview-face
))
65 "Face for newsticker tree."
66 :group
'newsticker-treeview
)
68 (defface newsticker-treeview-immortal-face
69 '((default :inherit newsticker-treeview-face
:slant italic
)
70 (((class color
) (background dark
)) :foreground
"orange")
71 (((class color
) (background light
)) :foreground
"blue"))
72 "Face for newsticker tree."
73 :group
'newsticker-treeview
)
75 (defface newsticker-treeview-obsolete-face
76 '((t :inherit newsticker-treeview-face
:strike-through t
))
77 "Face for newsticker tree."
78 :group
'newsticker-treeview
)
80 (defface newsticker-treeview-selection-face
81 '((((class color
) (background dark
)) :background
"#bbbbff")
82 (((class color
) (background light
)) :background
"#bbbbff"))
83 "Face for newsticker selection."
84 :group
'newsticker-treeview
)
86 (defcustom newsticker-treeview-date-format
88 "Format for the date column in the treeview list buffer.
89 See `format-time-string' for a list of valid specifiers."
92 :group
'newsticker-treeview
)
94 (defcustom newsticker-treeview-own-frame
96 "Decides whether newsticker treeview creates and uses its own frame."
98 :group
'newsticker-treeview
)
100 (defcustom newsticker-treeview-treewindow-width
102 "Width of tree window in treeview layout.
103 See also `newsticker-treeview-listwindow-height'."
105 :group
'newsticker-treeview
)
107 (defcustom newsticker-treeview-listwindow-height
109 "Height of list window in treeview layout.
110 See also `newsticker-treeview-treewindow-width'."
112 :group
'newsticker-treeview
)
114 (defcustom newsticker-treeview-automatically-mark-displayed-items-as-old
116 "Decides whether to automatically mark displayed items as old.
117 If t an item is marked as old as soon as it is displayed. This
118 applies to newsticker only."
120 :group
'newsticker-treeview
)
122 (defvar newsticker-groups
124 "List of feed groups, used in the treeview frontend.
125 First element is a string giving the group name. Remaining
126 elements are either strings giving a feed name or lists having
127 the same structure as `newsticker-groups'. (newsticker-groups :=
128 groupdefinition, groupdefinition := groupname groupcontent*,
129 groupcontent := feedname | groupdefinition)
131 Example: (\"Topmost group\" \"feed1\" (\"subgroup1\" \"feed 2\")
134 (defcustom newsticker-groups-filename
136 "Name of the newsticker groups settings file. This variable is obsolete."
137 :version
"25.1" ; changed default value to nil
139 :group
'newsticker-treeview
)
140 (make-obsolete-variable 'newsticker-groups-filename
'newsticker-dir
"23.1")
142 ;; ======================================================================
143 ;;; internal variables
144 ;; ======================================================================
145 (defvar newsticker--treeview-windows nil
)
146 (defvar newsticker--treeview-buffers nil
)
147 (defvar newsticker--treeview-current-feed nil
148 "Feed name of currently shown item.")
149 (defvar newsticker--treeview-current-vfeed nil
)
150 (defvar newsticker--treeview-list-show-feed nil
)
151 (defvar newsticker--saved-window-config nil
)
152 (defvar newsticker--selection-overlay nil
153 "Highlight the selected tree node.")
154 (defvar newsticker--tree-selection-overlay nil
155 "Highlight the selected list item.")
156 (defvar newsticker--frame nil
"Special frame for newsticker windows.")
157 (defvar newsticker--treeview-list-sort-order
'sort-by-time
)
158 (defvar newsticker--treeview-current-node-id nil
)
159 (defvar newsticker--treeview-current-tree nil
)
160 (defvar newsticker--treeview-feed-tree nil
)
161 (defvar newsticker--treeview-vfeed-tree nil
)
163 ;; maps for the clickable portions
164 (defvar newsticker--treeview-url-keymap
165 (let ((map (make-sparse-keymap 'newsticker--treeview-url-keymap
)))
166 (define-key map
[mouse-1
] 'newsticker-treeview-mouse-browse-url
)
167 (define-key map
[mouse-2
] 'newsticker-treeview-mouse-browse-url
)
168 (define-key map
"\n" 'newsticker-treeview-browse-url
)
169 (define-key map
"\C-m" 'newsticker-treeview-browse-url
)
170 (define-key map
[(control return
)] 'newsticker-handle-url
)
172 "Key map for click-able headings in the newsticker treeview buffers.")
175 ;; ======================================================================
177 ;; ======================================================================
178 (defsubst newsticker--treeview-tree-buffer
()
179 "Return the tree buffer of the newsticker treeview."
180 (nth 0 newsticker--treeview-buffers
))
181 (defsubst newsticker--treeview-list-buffer
()
182 "Return the list buffer of the newsticker treeview."
183 (nth 1 newsticker--treeview-buffers
))
184 (defsubst newsticker--treeview-item-buffer
()
185 "Return the item buffer of the newsticker treeview."
186 (nth 2 newsticker--treeview-buffers
))
187 (defsubst newsticker--treeview-tree-window
()
188 "Return the tree window of the newsticker treeview."
189 (nth 0 newsticker--treeview-windows
))
190 (defsubst newsticker--treeview-list-window
()
191 "Return the list window of the newsticker treeview."
192 (nth 1 newsticker--treeview-windows
))
193 (defsubst newsticker--treeview-item-window
()
194 "Return the item window of the newsticker treeview."
195 (nth 2 newsticker--treeview-windows
))
197 ;; ======================================================================
198 ;;; utility functions
199 ;; ======================================================================
200 (defun newsticker--treeview-get-id (parent i
)
201 "Create an id for a newsticker treeview node.
202 PARENT is the node's parent, I is an integer."
203 ;;(message "newsticker--treeview-get-id %s"
204 ;; (format "%s-%d" (widget-get parent :nt-id) i))
205 (format "%s-%d" (widget-get parent
:nt-id
) i
))
207 (defun newsticker--treeview-ids-eq (id1 id2
)
208 "Return non-nil if ids ID1 and ID2 are equal."
209 ;;(message "%s/%s" (or id1 -1) (or id2 -1))
210 (and id1 id2
(string= id1 id2
)))
212 (defun newsticker--treeview-nodes-eq (node1 node2
)
213 "Compare treeview nodes NODE1 and NODE2 for equality.
214 Nodes are equal if the have the same newsticker-id. Note that
215 during re-tagging and collapsing/expanding nodes change, while
216 their id stays constant."
217 (let ((id1 (widget-get node1
:nt-id
))
218 (id2 (widget-get node2
:nt-id
)))
219 ;;(message "%s/%s %s/%s" (widget-get node1 :tag) (widget-get node2 :tag)
220 ;; (or id1 -1) (or id2 -1))
221 (or (newsticker--treeview-ids-eq id1 id2
)
222 (string= (widget-get node1
:tag
) (widget-get node2
:tag
)))))
224 (defun newsticker--treeview-do-get-node-of-feed (feed-name startnode
)
225 "Recursively search node for feed FEED-NAME starting from STARTNODE."
226 ;;(message "%s/%s" feed-name (widget-get startnode :nt-feed))
227 (if (string= feed-name
(or (widget-get startnode
:nt-feed
)
228 (widget-get startnode
:nt-vfeed
)))
229 (throw 'found startnode
)
230 (let ((children (widget-get startnode
:children
)))
232 (newsticker--treeview-do-get-node-of-feed feed-name w
)))))
234 (defun newsticker--treeview-get-node-of-feed (feed-name)
235 "Return node for feed FEED-NAME in newsticker treeview tree."
237 (newsticker--treeview-do-get-node-of-feed feed-name
238 newsticker--treeview-feed-tree
)
239 (newsticker--treeview-do-get-node-of-feed feed-name
240 newsticker--treeview-vfeed-tree
)))
242 (defun newsticker--treeview-do-get-node-by-id (id startnode
)
243 "Recursively search node with ID starting from STARTNODE."
244 (if (newsticker--treeview-ids-eq id
(widget-get startnode
:nt-id
))
245 (throw 'found startnode
)
246 (let ((children (widget-get startnode
:children
)))
248 (newsticker--treeview-do-get-node-by-id id w
)))))
250 (defun newsticker--treeview-get-node-by-id (id)
251 "Return node with ID in newsticker treeview tree."
253 (newsticker--treeview-do-get-node-by-id id newsticker--treeview-feed-tree
)
254 (newsticker--treeview-do-get-node-by-id id newsticker--treeview-vfeed-tree
)))
256 (defun newsticker--treeview-get-current-node ()
257 "Return current node in newsticker treeview tree."
258 (newsticker--treeview-get-node-by-id newsticker--treeview-current-node-id
))
260 ;; ======================================================================
262 (unless (fboundp 'declare-function
) (defmacro declare-function
(&rest r
)))
263 (declare-function w3m-toggle-inline-images
"ext:w3m" (&optional force no-cache
))
265 (defun newsticker--treeview-render-text (start end
)
266 "Render text between markers START and END."
267 (if newsticker-html-renderer
268 (condition-case error-data
270 (set-marker-insertion-type end t
)
271 ;; check whether it is necessary to call html renderer
272 ;; (regexp inspired by htmlr.el)
274 (when (re-search-forward
275 "</?[A-Za-z1-6]*\\|&#?[A-Za-z0-9]+;" end t
)
276 ;; (message "%s" (newsticker--title item))
277 (let ((w3m-fill-column (if newsticker-use-full-width
279 (w3-maximum-line-length
280 (if newsticker-use-full-width nil fill-column
)))
282 (funcall newsticker-html-renderer start end
)))
283 ;;(cond ((eq newsticker-html-renderer 'w3m-region)
284 ;; (add-text-properties start end (list 'keymap
285 ;; w3m-minor-mode-map)))
286 ;;((eq newsticker-html-renderer 'w3-region)
287 ;;(add-text-properties start end (list 'keymap w3-mode-map))))
288 (if (eq newsticker-html-renderer
'w3m-region
)
289 (w3m-toggle-inline-images t
))
292 (message "Error: HTML rendering failed: %s, %s"
293 (car error-data
) (cdr error-data
))
297 ;; ======================================================================
299 ;; ======================================================================
300 (defun newsticker--treeview-list-add-item (item feed
&optional show-feed
)
301 "Add news ITEM for FEED to newsticker treeview list window.
302 If string SHOW-FEED is non-nil it is shown in the item string."
303 (setq newsticker--treeview-list-show-feed show-feed
)
304 (with-current-buffer (newsticker--treeview-list-buffer)
305 (let* ((inhibit-read-only t
)
307 (goto-char (point-max))
308 (setq pos1
(point-marker))
310 (insert (propertize " " 'display
'(space :align-to
2)))
311 (insert (if show-feed
314 (format "%-10s" (newsticker--real-feed-name
317 (propertize " " 'display
'(space :align-to
12)))
319 (insert (format-time-string newsticker-treeview-date-format
320 (newsticker--time item
)))
321 (insert (propertize " " 'display
322 (list 'space
:align-to
(if show-feed
28 18))))
323 (setq pos2
(point-marker))
324 (insert (newsticker--title item
))
326 (newsticker--treeview-render-text pos2
(point-marker))
328 (while (search-forward "\n" nil t
)
330 (let ((map (make-sparse-keymap)))
331 (dolist (key'([mouse-1
] [mouse-3
]))
332 (define-key map key
'newsticker-treeview-tree-click
))
333 (define-key map
"\n" 'newsticker-treeview-show-item
)
334 (define-key map
"\C-m" 'newsticker-treeview-show-item
)
335 (add-text-properties pos1
(point-max)
338 :nt-link
(newsticker--link item
)
339 'mouse-face
'highlight
341 'help-echo
(buffer-substring pos2
345 (defun newsticker--treeview-list-clear ()
346 "Clear the newsticker treeview list window."
347 (with-current-buffer (newsticker--treeview-list-buffer)
348 (let ((inhibit-read-only t
))
350 (kill-all-local-variables)
353 (defun newsticker--treeview-list-items-with-age-callback (widget
356 "Fill newsticker treeview list window with items of certain age.
357 This is a callback function for the treeview nodes.
358 Argument WIDGET is the calling treeview widget.
359 Argument CHANGED-WIDGET is the widget that actually has changed.
360 Optional argument AGES is the list of ages that are to be shown."
361 (newsticker--treeview-list-clear)
362 (widget-put widget
:nt-selected t
)
363 (apply 'newsticker--treeview-list-items-with-age ages
))
365 (defun newsticker--treeview-list-items-with-age (&rest ages
)
366 "Actually fill newsticker treeview list window with items of certain age.
367 AGES is the list of ages that are to be shown."
369 (let ((feed-name-symbol (intern (car feed
))))
371 (when (memq (newsticker--age item
) ages
)
372 (newsticker--treeview-list-add-item
373 item feed-name-symbol t
)))
374 (newsticker--treeview-list-sort-items
375 (cdr (newsticker--cache-get-feed feed-name-symbol
))))))
376 (append newsticker-url-list-defaults newsticker-url-list
))
377 (newsticker--treeview-list-update nil
))
379 (defun newsticker--treeview-list-new-items (widget changed-widget
381 "Fill newsticker treeview list window with new items.
382 This is a callback function for the treeview nodes.
383 Argument WIDGET is the calling treeview widget.
384 Argument CHANGED-WIDGET is the widget that actually has changed.
385 Optional argument EVENT is the mouse event that triggered this action."
386 (newsticker--treeview-list-items-with-age-callback widget changed-widget
388 (newsticker--treeview-item-show-text
390 "This is a virtual feed containing all new items"))
392 (defun newsticker--treeview-list-immortal-items (widget changed-widget
394 "Fill newsticker treeview list window with immortal items.
395 This is a callback function for the treeview nodes.
396 Argument WIDGET is the calling treeview widget.
397 Argument CHANGED-WIDGET is the widget that actually has changed.
398 Optional argument EVENT is the mouse event that triggered this action."
399 (newsticker--treeview-list-items-with-age-callback widget changed-widget
401 (newsticker--treeview-item-show-text
403 "This is a virtual feed containing all immortal items."))
405 (defun newsticker--treeview-list-obsolete-items (widget changed-widget
407 "Fill newsticker treeview list window with obsolete items.
408 This is a callback function for the treeview nodes.
409 Argument WIDGET is the calling treeview widget.
410 Argument CHANGED-WIDGET is the widget that actually has changed.
411 Optional argument EVENT is the mouse event that triggered this action."
412 (newsticker--treeview-list-items-with-age-callback widget changed-widget
414 (newsticker--treeview-item-show-text
416 "This is a virtual feed containing all obsolete items."))
418 (defun newsticker--treeview-list-all-items (widget changed-widget
420 "Fill newsticker treeview list window with all items.
421 This is a callback function for the treeview nodes.
422 Argument WIDGET is the calling treeview widget.
423 Argument CHANGED-WIDGET is the widget that actually has changed.
424 Optional argument EVENT is the mouse event that triggered this action."
425 (newsticker--treeview-list-items-with-age-callback widget changed-widget
428 (newsticker--treeview-item-show-text
430 "This is a virtual feed containing all items."))
432 (defun newsticker--treeview-list-items-v (vfeed-name)
433 "List items for virtual feed VFEED-NAME."
435 (cond ((string-match "\\*new\\*" vfeed-name
)
436 (newsticker--treeview-list-items-with-age 'new
))
437 ((string-match "\\*immortal\\*" vfeed-name
)
438 (newsticker--treeview-list-items-with-age 'immortal
))
439 ((string-match "\\*old\\*" vfeed-name
)
440 (newsticker--treeview-list-items-with-age 'old nil
)))
441 (newsticker--treeview-list-update nil
)
444 (defun newsticker--treeview-list-items (feed-name)
445 "List items for feed FEED-NAME."
447 (if (newsticker--treeview-virtual-feed-p feed-name
)
448 (newsticker--treeview-list-items-v feed-name
)
450 (if (eq (newsticker--age item
) 'feed
)
451 (newsticker--treeview-item-show item
(intern feed-name
))
452 (newsticker--treeview-list-add-item item
453 (intern feed-name
))))
454 (newsticker--treeview-list-sort-items
455 (cdr (newsticker--cache-get-feed (intern feed-name
)))))
456 (newsticker--treeview-list-update nil
))))
458 (defun newsticker--treeview-list-feed-items (widget changed-widget
460 "Callback function for listing feed items.
461 Argument WIDGET is the calling treeview widget.
462 Argument CHANGED-WIDGET is the widget that actually has changed.
463 Optional argument EVENT is the mouse event that triggered this action."
464 (newsticker--treeview-list-clear)
465 (widget-put widget
:nt-selected t
)
466 (let ((feed-name (widget-get widget
:nt-feed
))
467 (vfeed-name (widget-get widget
:nt-vfeed
)))
469 (newsticker--treeview-list-items feed-name
)
470 (newsticker--treeview-list-items-v vfeed-name
))))
472 (defun newsticker--treeview-list-compare-item-by-age (item1 item2
)
473 "Compare two news items ITEM1 and ITEM2 wrt age."
475 (let ((age1 (newsticker--age item1
))
476 (age2 (newsticker--age item2
)))
477 (cond ((eq age1
'new
)
480 (cond ((eq age2
'new
)
487 (cond ((eq age2
'new
)
498 (defun newsticker--treeview-list-compare-item-by-age-reverse (item1 item2
)
499 "Compare two news items ITEM1 and ITEM2 wrt age in reverse order."
500 (newsticker--treeview-list-compare-item-by-age item2 item1
))
502 (defun newsticker--treeview-list-compare-item-by-time (item1 item2
)
503 "Compare two news items ITEM1 and ITEM2 wrt time values."
504 (newsticker--cache-item-compare-by-time item1 item2
))
506 (defun newsticker--treeview-list-compare-item-by-time-reverse (item1 item2
)
507 "Compare two news items ITEM1 and ITEM2 wrt time values in reverse order."
508 (newsticker--cache-item-compare-by-time item2 item1
))
510 (defun newsticker--treeview-list-compare-item-by-title (item1 item2
)
511 "Compare two news items ITEM1 and ITEM2 wrt title."
512 (newsticker--cache-item-compare-by-title item1 item2
))
514 (defun newsticker--treeview-list-compare-item-by-title-reverse (item1 item2
)
515 "Compare two news items ITEM1 and ITEM2 wrt title in reverse order."
516 (newsticker--cache-item-compare-by-title item2 item1
))
518 (defun newsticker--treeview-list-sort-items (items)
519 "Return sorted copy of list ITEMS.
520 The sort function is chosen according to the value of
521 `newsticker--treeview-list-sort-order'."
523 (cond ((eq newsticker--treeview-list-sort-order
'sort-by-age
)
524 'newsticker--treeview-list-compare-item-by-age
)
525 ((eq newsticker--treeview-list-sort-order
526 'sort-by-age-reverse
)
527 'newsticker--treeview-list-compare-item-by-age-reverse
)
528 ((eq newsticker--treeview-list-sort-order
'sort-by-time
)
529 'newsticker--treeview-list-compare-item-by-time
)
530 ((eq newsticker--treeview-list-sort-order
531 'sort-by-time-reverse
)
532 'newsticker--treeview-list-compare-item-by-time-reverse
)
533 ((eq newsticker--treeview-list-sort-order
'sort-by-title
)
534 'newsticker--treeview-list-compare-item-by-title
)
535 ((eq newsticker--treeview-list-sort-order
536 'sort-by-title-reverse
)
537 'newsticker--treeview-list-compare-item-by-title-reverse
)
539 'newsticker--treeview-list-compare-item-by-title
))))
540 (sort (copy-sequence items
) sort-fun
)))
542 (defun newsticker--treeview-list-update-faces ()
543 "Update faces in the treeview list buffer."
545 (with-current-buffer (newsticker--treeview-list-buffer)
547 (let ((inhibit-read-only t
))
548 (goto-char (point-min))
550 (let* ((pos (point-at-eol))
551 (item (get-text-property (point) :nt-item
))
552 (age (newsticker--age item
))
553 (selected (get-text-property (point) :nt-selected
))
554 (face (cond ((eq age
'new
)
555 'newsticker-treeview-new-face
)
557 'newsticker-treeview-old-face
)
559 'newsticker-treeview-immortal-face
)
561 'newsticker-treeview-obsolete-face
)
564 (put-text-property (point) pos
'face face
)
566 (move-overlay newsticker--selection-overlay
(point)
567 (1+ pos
) ;include newline
569 (if selected
(setq pos-sel
(point)))
571 (beginning-of-line)))))) ;; FIXME!?
573 (if (window-live-p (newsticker--treeview-list-window))
574 (set-window-point (newsticker--treeview-list-window) pos-sel
)))))
576 (defun newsticker--treeview-list-clear-highlight ()
577 "Clear the highlight in the treeview list buffer."
578 (with-current-buffer (newsticker--treeview-list-buffer)
579 (let ((inhibit-read-only t
))
580 (put-text-property (point-min) (point-max) :nt-selected nil
))
581 (newsticker--treeview-list-update-faces)))
583 (defun newsticker--treeview-list-update-highlight ()
584 "Update the highlight in the treeview list buffer."
585 (newsticker--treeview-list-clear-highlight)
587 (with-current-buffer (newsticker--treeview-list-buffer)
588 (let ((inhibit-read-only t
))
589 (put-text-property (point-at-bol) (point-at-eol) :nt-selected t
))
590 (newsticker--treeview-list-update-faces))))
592 (defun newsticker--treeview-list-highlight-start ()
593 "Return position of selection in treeview list buffer."
594 (with-current-buffer (newsticker--treeview-list-buffer)
596 (goto-char (point-min))
597 (next-single-property-change (point) :nt-selected
))))
599 (defun newsticker--treeview-list-update (clear-buffer)
600 "Update the faces and highlight in the treeview list buffer.
601 If CLEAR-BUFFER is non-nil the list buffer is completely erased."
603 (if (window-live-p (newsticker--treeview-list-window))
604 (set-window-buffer (newsticker--treeview-list-window)
605 (newsticker--treeview-list-buffer)))
606 (set-buffer (newsticker--treeview-list-buffer))
608 (let ((inhibit-read-only t
))
610 (newsticker-treeview-list-mode)
611 (newsticker--treeview-list-update-faces)
612 (goto-char (point-min))))
614 (defvar newsticker-treeview-list-sort-button-map
615 (let ((map (make-sparse-keymap)))
616 (define-key map
[header-line mouse-1
]
617 'newsticker--treeview-list-sort-by-column
)
618 (define-key map
[header-line mouse-2
]
619 'newsticker--treeview-list-sort-by-column
)
621 "Local keymap for newsticker treeview list window sort buttons.")
623 (defun newsticker--treeview-list-sort-by-column (&optional event
)
624 "Sort the newsticker list window buffer by the column clicked on.
625 Optional argument EVENT is the mouse event that triggered this action."
626 (interactive (list last-input-event
))
627 (if event
(mouse-select-window event
))
628 (let* ((pos (event-start event
))
629 (obj (posn-object pos
))
631 (get-text-property (cdr obj
) 'sort-order
(car obj
))
632 (get-text-property (posn-point pos
) 'sort-order
))))
633 (setq newsticker--treeview-list-sort-order
634 (cond ((eq sort-order
'sort-by-age
)
635 (if (eq newsticker--treeview-list-sort-order
'sort-by-age
)
638 ((eq sort-order
'sort-by-time
)
639 (if (eq newsticker--treeview-list-sort-order
'sort-by-time
)
640 'sort-by-time-reverse
642 ((eq sort-order
'sort-by-title
)
643 (if (eq newsticker--treeview-list-sort-order
'sort-by-title
)
644 'sort-by-title-reverse
646 (newsticker-treeview-update)))
648 (defun newsticker-treeview-list-make-sort-button (name sort-order
)
649 "Create propertized string for headerline button.
650 NAME is the button text, SORT-ORDER is the associated sort order
652 (let ((face (if (string-match (symbol-name sort-order
)
654 newsticker--treeview-list-sort-order
))
658 'sort-order sort-order
659 'help-echo
(concat "Sort by " name
)
660 'mouse-face
'highlight
662 'keymap newsticker-treeview-list-sort-button-map
)))
664 (defun newsticker--treeview-list-select (item)
665 "Select ITEM in treeview's list buffer."
666 (newsticker--treeview-list-clear-highlight)
669 (set-buffer (newsticker--treeview-list-buffer))
670 (goto-char (point-min))
673 (let ((it (get-text-property (point) :nt-item
)))
675 (newsticker--treeview-list-update-highlight)
676 (newsticker--treeview-list-update-faces)
677 (newsticker--treeview-item-show
678 item
(get-text-property (point) :nt-feed
))
682 (goto-char (point-min))
683 (throw 'found nil
)))))))
685 ;; ======================================================================
687 ;; ======================================================================
688 (defun newsticker--treeview-item-show-text (title description
)
689 "Show text in treeview item buffer consisting of TITLE and DESCRIPTION."
690 (with-current-buffer (newsticker--treeview-item-buffer)
691 (when (fboundp 'w3m-process-stop
)
692 (w3m-process-stop (current-buffer)))
693 (let ((inhibit-read-only t
))
695 (kill-all-local-variables)
698 (put-text-property (point-min) (point) 'face
'newsticker-feed-face
)
699 (insert "\n\n" description
)
700 (when newsticker-justification
701 (fill-region (point-min) (point-max) newsticker-justification
))
702 (newsticker-treeview-item-mode)
703 (goto-char (point-min)))))
705 (defun newsticker--treeview-item-show (item feed-name-symbol
)
706 "Show news ITEM coming from FEED-NAME-SYMBOL in treeview item buffer."
707 (setq newsticker--treeview-current-feed
(symbol-name feed-name-symbol
))
708 (with-current-buffer (newsticker--treeview-item-buffer)
709 (when (fboundp 'w3m-process-stop
)
710 (w3m-process-stop (current-buffer)))
711 (let ((inhibit-read-only t
)
712 (is-rendered-HTML nil
)
714 (marker1 (make-marker))
715 (marker2 (make-marker)))
717 (kill-all-local-variables)
720 (when (and item feed-name-symbol
)
721 (let ((wwidth (1- (if (window-live-p (newsticker--treeview-item-window))
722 (window-width (newsticker--treeview-item-window))
724 (if newsticker-use-full-width
725 (set (make-local-variable 'fill-column
) wwidth
))
726 (set (make-local-variable 'fill-column
) (min fill-column
728 (let ((desc (newsticker--desc item
)))
729 (insert "\n" (or desc
"[No Description]")))
730 (set-marker marker1
(1+ (point-min)))
731 (set-marker marker2
(point-max))
732 (setq is-rendered-HTML
(newsticker--treeview-render-text marker1
734 (when (and newsticker-justification
735 (not is-rendered-HTML
))
736 (fill-region marker1 marker2 newsticker-justification
))
738 (newsticker-treeview-item-mode)
739 (goto-char (point-min))
740 ;; insert logo at top
741 (let* ((newsticker-enable-logo-manipulations nil
)
742 (img (newsticker--image-read feed-name-symbol nil
40)))
743 (if (and (display-images-p) img
)
744 (newsticker--insert-image img
(car item
))
745 (insert (newsticker--real-feed-name feed-name-symbol
))))
746 (add-text-properties (point-min) (point)
747 (list 'face
'newsticker-feed-face
748 'mouse-face
'highlight
749 'help-echo
"Visit in web browser."
750 :nt-link
(newsticker--link item
)
751 'keymap newsticker--treeview-url-keymap
))
757 (insert (newsticker--title item
) "\n")
758 (set-marker marker1 pos
)
759 (set-marker marker2
(point))
760 (newsticker--treeview-render-text marker1 marker2
)
761 (put-text-property pos
(point) 'face
'newsticker-treeview-new-face
)
765 (put-text-property marker2
(point) 'face
'newsticker-treeview-face
)
766 (set-marker marker2
(point))
767 (when newsticker-justification
768 (fill-region marker1 marker2 newsticker-justification
))
770 (add-text-properties marker1
(1- (point))
771 (list 'mouse-face
'highlight
772 'help-echo
"Visit in web browser."
773 :nt-link
(newsticker--link item
)
774 'keymap newsticker--treeview-url-keymap
))
775 (insert (format-time-string newsticker-date-format
776 (newsticker--time item
)))
780 ;; insert enclosures and rest at bottom
781 (goto-char (point-max))
784 (newsticker--insert-enclosure item newsticker--treeview-url-keymap
)
785 (put-text-property pos
(point) 'face
'newsticker-enclosure-face
)
788 (set-marker marker1 pos
)
789 (newsticker--print-extra-elements item newsticker--treeview-url-keymap t
)
790 (set-marker marker2
(point))
791 (newsticker--treeview-render-text marker1 marker2
)
792 (put-text-property marker1 marker2
'face
'newsticker-extra-face
)
793 (goto-char (point-min)))))
794 (if (and newsticker-treeview-automatically-mark-displayed-items-as-old
796 (memq (newsticker--age item
) '(new obsolete
)))
797 (let ((newsticker-treeview-automatically-mark-displayed-items-as-old nil
))
798 (newsticker-treeview-mark-item-old t
)
799 (newsticker--treeview-list-update-faces)))
800 (if (window-live-p (newsticker--treeview-item-window))
801 (set-window-point (newsticker--treeview-item-window) 1)))
803 (defun newsticker--treeview-item-update ()
804 "Update the treeview item buffer and window."
806 (if (window-live-p (newsticker--treeview-item-window))
807 (set-window-buffer (newsticker--treeview-item-window)
808 (newsticker--treeview-item-buffer)))
809 (set-buffer (newsticker--treeview-item-buffer))
810 (let ((inhibit-read-only t
))
812 (newsticker-treeview-item-mode)))
814 ;; ======================================================================
816 ;; ======================================================================
817 (defun newsticker--treeview-tree-expand (tree)
819 Callback function for tree widget that adds nodes for feeds and subgroups."
820 (tree-widget-set-theme "folder")
821 (let ((group (widget-get tree
:nt-group
))
825 (setq nt-id
(newsticker--treeview-get-id tree i
))
828 (let* ((g-name (car g
)))
830 :tag
,(newsticker--treeview-tree-get-tag g-name nil nt-id
)
831 :expander newsticker--treeview-tree-expand
832 :expander-p
(lambda (&rest ignore
) t
)
836 :leaf-icon newsticker--tree-widget-leaf-icon
837 :keep
(:nt-feed
:num-new
:nt-id
:open
);; :nt-group
839 (let ((tag (newsticker--treeview-tree-get-tag g nil nt-id
)))
841 :leaf-icon newsticker--tree-widget-leaf-icon
843 :action newsticker--treeview-list-feed-items
849 (defun newsticker--tree-widget-icon-create (icon)
850 "Create the ICON widget."
851 (let* ((g (widget-get (widget-get icon
:node
) :nt-feed
))
852 (ico (and g
(newsticker--icon-read (intern g
)))))
855 (widget-put icon
:tag-glyph ico
)
856 (widget-default-create icon
)
857 ;; Insert space between the icon and the node widget.
861 'display
(list 'space
:width tree-widget-space-width
)))
862 ;; fallback: default icon
863 (widget-put icon
:leaf-icon
'tree-widget-leaf-icon
)
864 (tree-widget-icon-create icon
))))
866 (defun newsticker--treeview-tree-expand-status (tree &optional changed-widget
868 "Expand the vfeed TREE.
869 Optional arguments CHANGED-WIDGET and EVENT are ignored."
870 (tree-widget-set-theme "folder")
871 (list `(item :tag
,(newsticker--treeview-tree-get-tag nil
"new")
873 :action newsticker--treeview-list-new-items
874 :nt-id
,(newsticker--treeview-get-id tree
0)
876 `(item :tag
,(newsticker--treeview-tree-get-tag nil
"immortal")
878 :action newsticker--treeview-list-immortal-items
879 :nt-id
,(newsticker--treeview-get-id tree
1)
881 `(item :tag
,(newsticker--treeview-tree-get-tag nil
"obsolete")
883 :action newsticker--treeview-list-obsolete-items
884 :nt-id
,(newsticker--treeview-get-id tree
2)
886 `(item :tag
,(newsticker--treeview-tree-get-tag nil
"all")
888 :action newsticker--treeview-list-all-items
889 :nt-id
,(newsticker--treeview-get-id tree
3)
892 (defun newsticker--treeview-virtual-feed-p (feed-name)
893 "Return non-nil if FEED-NAME is a virtual feed."
894 (string-match "\\*.*\\*" feed-name
))
896 (define-widget 'newsticker--tree-widget-leaf-icon
'tree-widget-icon
897 "Icon for a tree-widget leaf node."
900 :create
'newsticker--tree-widget-icon-create
901 :button-face
'default
)
903 (defun newsticker--treeview-tree-update ()
904 "Update treeview tree buffer and window."
906 (if (window-live-p (newsticker--treeview-tree-window))
907 (set-window-buffer (newsticker--treeview-tree-window)
908 (newsticker--treeview-tree-buffer)))
909 (set-buffer (newsticker--treeview-tree-buffer))
910 (kill-all-local-variables)
911 (let ((inhibit-read-only t
))
913 (tree-widget-set-theme "folder")
914 (setq newsticker--treeview-feed-tree
915 (widget-create 'tree-widget
916 :tag
(newsticker--treeview-propertize-tag
918 :expander
'newsticker--treeview-tree-expand
919 :expander-p
(lambda (&rest ignore
) t
)
920 :leaf-icon
'newsticker--tree-widget-leaf-icon
921 :nt-group
(cdr newsticker-groups
)
925 (setq newsticker--treeview-vfeed-tree
926 (widget-create 'tree-widget
927 :tag
(newsticker--treeview-propertize-tag
928 "Virtual Feeds" 0 "vfeeds")
929 :expander
'newsticker--treeview-tree-expand-status
930 :expander-p
(lambda (&rest ignore
) t
)
931 :leaf-icon
'newsticker--tree-widget-leaf-icon
935 (use-local-map widget-keymap
)
937 (newsticker-treeview-mode)))
939 (defun newsticker--treeview-propertize-tag (tag &optional num-new nt-id feed
941 "Return propertized copy of string TAG.
942 Optional argument NUM-NEW is used for choosing face, other
943 arguments NT-ID, FEED, and VFEED are added as properties."
944 ;;(message "newsticker--treeview-propertize-tag '%s' %s" feed nt-id)
945 (let ((face 'newsticker-treeview-face
)
946 (map (make-sparse-keymap)))
947 (if (and num-new
(> num-new
0))
948 (setq face
'newsticker-treeview-new-face
))
949 (dolist (key '([mouse-1
] [mouse-3
]))
950 (define-key map key
'newsticker-treeview-tree-click
))
951 (define-key map
"\n" 'newsticker-treeview-tree-do-click
)
952 (define-key map
"\C-m" 'newsticker-treeview-tree-do-click
)
953 (propertize tag
'face face
'keymap map
958 'mouse-face
'highlight
)))
960 (defun newsticker--treeview-tree-get-tag (feed-name vfeed-name
962 "Return a tag string for either FEED-NAME or, if it is nil, for VFEED-NAME.
963 Optional argument NT-ID is added to the tag's properties."
964 (let (tag (num-new 0))
966 (cond ((string= vfeed-name
"new")
967 (setq num-new
(newsticker--stat-num-items-total 'new
))
968 (setq tag
(format "New items (%d)" num-new
)))
969 ((string= vfeed-name
"immortal")
970 (setq num-new
(newsticker--stat-num-items-total 'immortal
))
971 (setq tag
(format "Immortal items (%d)" num-new
)))
972 ((string= vfeed-name
"obsolete")
973 (setq num-new
(newsticker--stat-num-items-total 'obsolete
))
974 (setq tag
(format "Obsolete items (%d)" num-new
)))
975 ((string= vfeed-name
"all")
976 (setq num-new
(newsticker--stat-num-items-total))
977 (setq tag
(format "All items (%d)" num-new
)))))
979 (setq num-new
(newsticker--stat-num-items-for-group
980 (intern feed-name
) 'new
'immortal
))
983 (newsticker--real-feed-name (intern feed-name
))
986 (newsticker--treeview-propertize-tag tag num-new
988 feed-name vfeed-name
))))
990 (defun newsticker--stat-num-items-for-group (feed-name-symbol &rest ages
)
991 "Count number of items in feed FEED-NAME-SYMBOL that have an age matching AGES."
992 ;;(message "newsticker--stat-num-items-for-group %s %s" feed-name-symbol ages)
993 (let ((result (apply 'newsticker--stat-num-items feed-name-symbol ages
)))
995 (setq result
(+ result
996 (apply 'newsticker--stat-num-items
(intern f-n
)
998 (newsticker--group-get-feeds
999 (newsticker--group-get-group (symbol-name feed-name-symbol
)) t
))
1002 (defun newsticker--treeview-count-node-items (feed &optional isvirtual
)
1003 "Count number of relevant items for a treeview node.
1004 FEED gives the name of the feed or group. If ISVIRTUAL is non-nil
1005 the feed is a virtual feed."
1009 (cond ((string= feed
"new")
1010 (setq num-new
(newsticker--stat-num-items-total 'new
)))
1011 ((string= feed
"immortal")
1012 (setq num-new
(newsticker--stat-num-items-total 'immortal
)))
1013 ((string= feed
"obsolete")
1014 (setq num-new
(newsticker--stat-num-items-total 'obsolete
)))
1015 ((string= feed
"all")
1016 (setq num-new
(newsticker--stat-num-items-total))))
1017 (setq num-new
(newsticker--stat-num-items-for-group
1018 (intern feed
) 'new
'immortal
))))
1021 (defun newsticker--treeview-tree-update-tag (w &optional recursive
1023 "Update tag for tree widget W.
1024 If RECURSIVE is non-nil recursively update parent widgets as
1025 well. Argument IGNORE is ignored. Note that this function, if
1026 called recursively, makes w invalid. You should keep w's nt-id in
1028 (let* ((parent (widget-get w
:parent
))
1029 (feed (or (widget-get w
:nt-feed
) (widget-get parent
:nt-feed
)))
1030 (vfeed (or (widget-get w
:nt-vfeed
) (widget-get parent
:nt-vfeed
)))
1031 (nt-id (or (widget-get w
:nt-id
) (widget-get parent
:nt-id
)))
1032 (num-new (newsticker--treeview-count-node-items (or feed vfeed
)
1034 (tag (newsticker--treeview-tree-get-tag feed vfeed nt-id
))
1035 (n (widget-get w
:node
)))
1038 (newsticker--treeview-tree-update-tag parent
)))
1041 (widget-put n
:tag tag
))
1042 (widget-put w
:num-new num-new
)
1043 (widget-put w
:tag tag
)
1044 (when (marker-position (widget-get w
:from
))
1046 (notify (widget-get w
:notify
)))
1047 ;; FIXME: This moves point!!!!
1048 (with-current-buffer (newsticker--treeview-tree-buffer)
1049 (widget-value-set w
(widget-value w
)))
1052 (defun newsticker--treeview-tree-do-update-tags (widget)
1053 "Actually recursively update tags for WIDGET."
1055 (let ((children (widget-get widget
:children
)))
1056 (dolist (w children
)
1057 (newsticker--treeview-tree-do-update-tags w
))
1058 (newsticker--treeview-tree-update-tag widget
))))
1060 (defun newsticker--treeview-tree-update-tags (&rest ignore
)
1061 "Update all tags of all trees.
1062 Arguments IGNORE are ignored."
1063 (save-current-buffer
1064 (set-buffer (newsticker--treeview-tree-buffer))
1065 (let ((inhibit-read-only t
))
1066 (newsticker--treeview-tree-do-update-tags
1067 newsticker--treeview-feed-tree
)
1068 (newsticker--treeview-tree-do-update-tags
1069 newsticker--treeview-vfeed-tree
))
1070 (tree-widget-set-theme "folder")))
1072 (defun newsticker--treeview-tree-update-highlight ()
1073 "Update highlight in tree buffer."
1074 (let ((pos (widget-get (newsticker--treeview-get-current-node) :from
)))
1075 (unless (or (integerp pos
) (and (markerp pos
) (marker-position pos
)))
1076 (setq pos
(widget-get (widget-get
1077 (newsticker--treeview-get-current-node)
1079 (when (or (integerp pos
) (and (markerp pos
) (marker-position pos
)))
1080 (with-current-buffer (newsticker--treeview-tree-buffer)
1082 (move-overlay newsticker--tree-selection-overlay
1083 (point-at-bol) (1+ (point-at-eol))
1085 (if (window-live-p (newsticker--treeview-tree-window))
1086 (set-window-point (newsticker--treeview-tree-window) pos
)))))
1088 ;; ======================================================================
1090 ;; ======================================================================
1091 (defvar newsticker-treeview-tool-bar-map
1092 (if (featurep 'xemacs
)
1094 (if (boundp 'tool-bar-map
)
1095 (let ((tool-bar-map (make-sparse-keymap)))
1096 (tool-bar-add-item "newsticker/prev-feed"
1097 'newsticker-treeview-prev-feed
1098 'newsticker-treeview-prev-feed
1099 :help
"Go to previous feed"
1100 ;;:enable '(newsticker-previous-feed-available-p) FIXME
1102 (tool-bar-add-item "newsticker/prev-item"
1103 'newsticker-treeview-prev-item
1104 'newsticker-treeview-prev-item
1105 :help
"Go to previous item"
1106 ;;:enable '(newsticker-previous-item-available-p) FIXME
1108 (tool-bar-add-item "newsticker/next-item"
1109 'newsticker-treeview-next-item
1110 'newsticker-treeview-next-item
1112 :help
"Go to next item"
1113 ;;:enable '(newsticker-next-item-available-p) FIXME
1115 (tool-bar-add-item "newsticker/next-feed"
1116 'newsticker-treeview-next-feed
1117 'newsticker-treeview-next-feed
1118 :help
"Go to next feed"
1119 ;;:enable '(newsticker-next-feed-available-p) FIXME
1121 (tool-bar-add-item "newsticker/mark-immortal"
1122 'newsticker-treeview-toggle-item-immortal
1123 'newsticker-treeview-toggle-item-immortal
1124 :help
"Toggle current item as immortal"
1125 ;;:enable '(newsticker-item-not-immortal-p) FIXME
1127 (tool-bar-add-item "newsticker/mark-read"
1128 'newsticker-treeview-mark-item-old
1129 'newsticker-treeview-mark-item-old
1130 :help
"Mark current item as read"
1131 ;;:enable '(newsticker-item-not-old-p) FIXME
1133 (tool-bar-add-item "newsticker/get-all"
1134 'newsticker-get-all-news
1135 'newsticker-get-all-news
1136 :help
"Get news for all feeds")
1137 (tool-bar-add-item "newsticker/update"
1138 'newsticker-treeview-update
1139 'newsticker-treeview-update
1140 :help
"Update newsticker buffer")
1141 (tool-bar-add-item "newsticker/browse-url"
1142 'newsticker-browse-url
1143 'newsticker-browse-url
1144 :help
"Browse URL for item at point")
1145 ;; standard icons / actions
1146 (define-key tool-bar-map
[newsticker-sep-1
]
1147 (list 'menu-item
"--double-line"))
1148 (tool-bar-add-item "close"
1149 'newsticker-treeview-quit
1150 'newsticker-treeview-quit
1151 :help
"Close newsticker")
1152 (tool-bar-add-item "preferences"
1153 'newsticker-customize
1154 'newsticker-customize
1155 :help
"Customize newsticker")
1158 ;; ======================================================================
1160 ;; ======================================================================
1162 (defun newsticker-treeview-mouse-browse-url (event)
1163 "Call `browse-url' for the link of the item at which the EVENT occurred."
1166 (switch-to-buffer (window-buffer (posn-window (event-end event
))))
1167 (let ((url (get-text-property (posn-point (event-end event
))
1171 (if newsticker-automatically-mark-visited-items-as-old
1172 (newsticker-treeview-mark-item-old))))))
1174 (defun newsticker-treeview-browse-url ()
1175 "Call `browse-url' for the link of the item at point."
1177 (with-current-buffer (newsticker--treeview-list-buffer)
1178 (let ((url (get-text-property (point) :nt-link
)))
1181 (if newsticker-automatically-mark-visited-items-as-old
1182 (newsticker-treeview-mark-item-old))))))
1184 (defun newsticker--treeview-buffer-init ()
1185 "Initialize all treeview buffers."
1186 (setq newsticker--treeview-buffers nil
)
1187 (add-to-list 'newsticker--treeview-buffers
1188 (get-buffer-create "*Newsticker Tree*") t
)
1189 (add-to-list 'newsticker--treeview-buffers
1190 (get-buffer-create "*Newsticker List*") t
)
1191 (add-to-list 'newsticker--treeview-buffers
1192 (get-buffer-create "*Newsticker Item*") t
)
1194 (unless newsticker--selection-overlay
1195 (with-current-buffer (newsticker--treeview-list-buffer)
1196 (setq buffer-undo-list t
)
1197 (setq newsticker--selection-overlay
(make-overlay (point-min)
1199 (overlay-put newsticker--selection-overlay
'face
1200 'newsticker-treeview-selection-face
)))
1201 (unless newsticker--tree-selection-overlay
1202 (with-current-buffer (newsticker--treeview-tree-buffer)
1203 (setq buffer-undo-list t
)
1204 (setq newsticker--tree-selection-overlay
(make-overlay (point-min)
1206 (overlay-put newsticker--tree-selection-overlay
'face
1207 'newsticker-treeview-selection-face
)))
1209 (newsticker--treeview-tree-update)
1210 (newsticker--treeview-list-update t
)
1211 (newsticker--treeview-item-update))
1213 (defun newsticker-treeview-update ()
1214 "Update all treeview buffers and windows.
1215 Note: does not update the layout."
1217 (let ((cur-item (newsticker--treeview-get-selected-item)))
1218 (if (newsticker--group-manage-orphan-feeds)
1219 (newsticker--treeview-tree-update))
1220 (newsticker--treeview-list-update t
)
1221 (newsticker--treeview-item-update)
1222 (newsticker--treeview-tree-update-tags)
1223 (cond (newsticker--treeview-current-feed
1224 (newsticker--treeview-list-items newsticker--treeview-current-feed
))
1225 (newsticker--treeview-current-vfeed
1226 (newsticker--treeview-list-items-with-age
1227 (intern newsticker--treeview-current-vfeed
))))
1228 (newsticker--treeview-tree-update-highlight)
1229 (newsticker--treeview-list-update-highlight)
1230 (let ((cur-feed (or newsticker--treeview-current-feed
1231 newsticker--treeview-current-vfeed
)))
1232 (if (and cur-feed cur-item
)
1233 (newsticker--treeview-list-select cur-item
)))))
1235 (defun newsticker-treeview-quit ()
1236 "Quit newsticker treeview."
1238 (setq newsticker--sentinel-callback nil
)
1239 (bury-buffer "*Newsticker Tree*")
1240 (bury-buffer "*Newsticker List*")
1241 (bury-buffer "*Newsticker Item*")
1242 (set-window-configuration newsticker--saved-window-config
)
1243 (when newsticker--frame
1244 (if (frame-live-p newsticker--frame
)
1245 (delete-frame newsticker--frame
))
1246 (setq newsticker--frame nil
))
1247 (newsticker-treeview-save))
1249 (defun newsticker-treeview-save ()
1250 "Save treeview group settings."
1252 (let ((coding-system-for-write 'utf-8
)
1253 (buf (find-file-noselect (concat newsticker-dir
"/groups"))))
1255 (with-current-buffer buf
1256 (setq buffer-undo-list t
)
1258 (insert ";; -*- coding: utf-8 -*-\n")
1259 (insert (prin1-to-string newsticker-groups
))
1263 (defun newsticker--treeview-load ()
1264 "Load treeview settings."
1265 (let* ((coding-system-for-read 'utf-8
)
1267 (or (and newsticker-groups-filename
1269 (expand-file-name newsticker-groups-filename
)
1270 (expand-file-name (concat newsticker-dir
"/groups"))))
1271 (file-exists-p newsticker-groups-filename
)
1274 (concat "Obsolete variable `newsticker-groups-filename' "
1275 "points to existing file \"%s\".\n"
1277 newsticker-groups-filename
))
1278 newsticker-groups-filename
)
1279 (concat newsticker-dir
"/groups")))
1280 (buf (and (file-exists-p filename
)
1281 (find-file-noselect filename
))))
1282 (and newsticker-groups-filename
1283 (file-exists-p newsticker-groups-filename
)
1285 (concat "Delete the file \"%s\",\nto which the obsolete "
1286 "variable `newsticker-groups-filename' points ? ")
1287 newsticker-groups-filename
))
1288 (delete-file newsticker-groups-filename
))
1291 (goto-char (point-min))
1293 (setq newsticker-groups
(read buf
))
1295 (message "Error while reading newsticker groups file!")
1296 (setq newsticker-groups nil
)))
1297 (kill-buffer buf
))))
1300 (defun newsticker-treeview-scroll-item ()
1301 "Scroll current item."
1303 (save-selected-window
1304 (select-window (newsticker--treeview-item-window) t
)
1307 (defun newsticker-treeview-show-item ()
1308 "Show current item."
1310 (newsticker--treeview-restore-layout)
1311 (newsticker--treeview-list-update-highlight)
1312 (with-current-buffer (newsticker--treeview-list-buffer)
1314 (let ((item (get-text-property (point) :nt-item
))
1315 (feed (get-text-property (point) :nt-feed
)))
1316 (newsticker--treeview-item-show item feed
)))
1317 (newsticker--treeview-tree-update-tag
1318 (newsticker--treeview-get-current-node) t
)
1319 (newsticker--treeview-tree-update-highlight))
1321 (defun newsticker-treeview-next-item ()
1322 "Move to next item."
1324 (newsticker--treeview-restore-layout)
1325 (save-current-buffer
1326 (set-buffer (newsticker--treeview-list-buffer))
1327 (if (newsticker--treeview-list-highlight-start)
1331 (newsticker-treeview-show-item))
1333 (defun newsticker-treeview-prev-item ()
1334 "Move to previous item."
1336 (newsticker--treeview-restore-layout)
1337 (save-current-buffer
1338 (set-buffer (newsticker--treeview-list-buffer))
1340 (newsticker-treeview-show-item))
1342 (defun newsticker-treeview-next-new-or-immortal-item (&optional
1345 "Move to next new or immortal item.
1346 Will move to next feed until an item is found. Will not move if
1347 optional argument CURRENT-ITEM-COUNTS is t and current item is
1348 new or immortal. Will not move from virtual to ordinary feed
1349 tree or vice versa if optional argument DONT-WRAP-TREES is non-nil."
1351 (newsticker--treeview-restore-layout)
1352 (newsticker--treeview-list-clear-highlight)
1353 (unless (catch 'found
1354 (let ((move (not current-item-counts
)))
1356 (save-current-buffer
1357 (set-buffer (newsticker--treeview-list-buffer))
1358 (when move
(forward-line 1)
1361 (throw 'found nil
))))
1362 (when (memq (newsticker--age
1363 (newsticker--treeview-get-selected-item))
1365 (newsticker-treeview-show-item)
1368 (let ((wrap-trees (not dont-wrap-trees
)))
1369 (when (or (newsticker-treeview-next-feed t
)
1370 (and wrap-trees
(newsticker--treeview-first-feed)))
1371 (newsticker-treeview-next-new-or-immortal-item t t
)))))
1373 (defun newsticker-treeview-prev-new-or-immortal-item ()
1374 "Move to previous new or immortal item.
1375 Will move to previous feed until an item is found."
1377 (newsticker--treeview-restore-layout)
1378 (newsticker--treeview-list-clear-highlight)
1379 (unless (catch 'found
1381 (save-current-buffer
1382 (set-buffer (newsticker--treeview-list-buffer))
1386 (when (memq (newsticker--age
1387 (newsticker--treeview-get-selected-item))
1389 (newsticker-treeview-show-item)
1392 (throw 'found nil
))))
1393 (when (newsticker-treeview-prev-feed t
)
1394 (set-buffer (newsticker--treeview-list-buffer))
1395 (goto-char (point-max))
1396 (newsticker-treeview-prev-new-or-immortal-item))))
1398 (defun newsticker--treeview-get-selected-item ()
1399 "Return item that is currently selected in list buffer."
1400 (with-current-buffer (newsticker--treeview-list-buffer)
1402 (get-text-property (point) :nt-item
)))
1404 (defun newsticker-treeview-mark-item-old (&optional dont-proceed
)
1405 "Mark current item as old unless it is obsolete.
1406 Move to next item unless DONT-PROCEED is non-nil."
1408 (let ((item (newsticker--treeview-get-selected-item)))
1409 (unless (eq (newsticker--age item
) 'obsolete
)
1410 (newsticker--treeview-mark-item item
'old
)))
1411 (unless dont-proceed
1412 (newsticker-treeview-next-item)))
1414 (defun newsticker-treeview-toggle-item-immortal ()
1415 "Toggle immortality of current item."
1417 (let* ((item (newsticker--treeview-get-selected-item))
1418 (new-age (if (eq (newsticker--age item
) 'immortal
)
1421 (newsticker--treeview-mark-item item new-age
)
1422 (newsticker-treeview-next-item)))
1424 (defun newsticker--treeview-mark-item (item new-age
)
1425 "Mark ITEM with NEW-AGE."
1427 (setcar (nthcdr 4 item
) new-age
)
1428 ;; clean up ticker FIXME
1430 (newsticker--cache-save-feed
1431 (newsticker--cache-get-feed (intern newsticker--treeview-current-feed
)))
1432 (newsticker--treeview-tree-do-update-tags newsticker--treeview-vfeed-tree
))
1434 (defun newsticker-treeview-mark-list-items-old ()
1435 "Mark all listed items as old."
1437 (let ((current-feed (or newsticker--treeview-current-feed
1438 newsticker--treeview-current-vfeed
)))
1439 (with-current-buffer (newsticker--treeview-list-buffer)
1440 (goto-char (point-min))
1442 (let ((item (get-text-property (point) :nt-item
)))
1443 (unless (memq (newsticker--age item
) '(immortal obsolete
))
1444 (newsticker--treeview-mark-item item
'old
)))
1446 (newsticker--treeview-tree-update-tags)
1448 (newsticker-treeview-jump current-feed
))))
1450 (defun newsticker-treeview-save-item ()
1451 "Save current item."
1453 (newsticker-save-item (or newsticker--treeview-current-feed
1454 newsticker--treeview-current-vfeed
)
1455 (newsticker--treeview-get-selected-item)))
1457 (defun newsticker-treeview-browse-url-item ()
1458 "Convert current item to HTML and call `browse-url' on result."
1460 (newsticker-browse-url-item (or newsticker--treeview-current-feed
1461 newsticker--treeview-current-vfeed
)
1462 (newsticker--treeview-get-selected-item)))
1464 (defun newsticker--treeview-set-current-node (node)
1465 "Make NODE the current node."
1466 (with-current-buffer (newsticker--treeview-tree-buffer)
1467 (setq newsticker--treeview-current-node-id
1468 (widget-get node
:nt-id
))
1469 (setq newsticker--treeview-current-feed
(widget-get node
:nt-feed
))
1470 (setq newsticker--treeview-current-vfeed
(widget-get node
:nt-vfeed
))
1471 (newsticker--treeview-tree-update-highlight)))
1473 (defun newsticker--treeview-get-first-child (node)
1474 "Get first child of NODE."
1475 (let ((children (widget-get node
:children
)))
1480 (defun newsticker--treeview-get-second-child (node)
1481 "Get scond child of NODE."
1482 (let ((children (widget-get node
:children
)))
1484 (car (cdr children
))
1487 (defun newsticker--treeview-get-last-child (node)
1488 "Get last child of NODE."
1489 ;;(message "newsticker--treeview-get-last-child %s" (widget-get node :tag))
1490 (let ((children (widget-get node
:children
)))
1492 (car (reverse children
))
1495 (defun newsticker--treeview-get-feed-vfeed (node)
1496 "Get (virtual) feed of NODE."
1497 (or (widget-get node
:nt-feed
) (widget-get node
:nt-vfeed
)))
1499 (defun newsticker--treeview-get-next-sibling (node)
1500 "Get next sibling of NODE."
1501 (let ((parent (widget-get node
:parent
)))
1503 (let ((children (widget-get parent
:children
)))
1505 (if (newsticker--treeview-nodes-eq (car children
) node
)
1506 (throw 'found
(car (cdr children
))))
1507 (setq children
(cdr children
)))))))
1509 (defun newsticker--treeview-get-prev-sibling (node)
1510 "Get previous sibling of NODE."
1511 (let ((parent (widget-get node
:parent
)))
1513 (let ((children (widget-get parent
:children
))
1516 (if (and (newsticker--treeview-nodes-eq (car children
) node
)
1517 (widget-get prev
:nt-id
))
1518 (throw 'found prev
))
1519 (setq prev
(car children
))
1520 (setq children
(cdr children
)))))))
1522 (defun newsticker--treeview-get-next-uncle (node)
1523 "Get next uncle of NODE, i.e. parent's next sibling."
1524 (let* ((parent (widget-get node
:parent
))
1525 (grand-parent (widget-get parent
:parent
)))
1527 (let ((uncles (widget-get grand-parent
:children
)))
1529 (if (newsticker--treeview-nodes-eq (car uncles
) parent
)
1530 (throw 'found
(car (cdr uncles
))))
1531 (setq uncles
(cdr uncles
)))))))
1533 (defun newsticker--treeview-get-prev-uncle (node)
1534 "Get previous uncle of NODE, i.e. parent's previous sibling."
1535 (let* ((parent (widget-get node
:parent
))
1536 (grand-parent (widget-get parent
:parent
)))
1538 (let ((uncles (widget-get grand-parent
:children
))
1541 (if (newsticker--treeview-nodes-eq (car uncles
) parent
)
1542 (throw 'found prev
))
1543 (setq prev
(car uncles
))
1544 (setq uncles
(cdr uncles
)))))))
1546 (defun newsticker--treeview-get-other-tree ()
1548 (if (and (newsticker--treeview-get-current-node)
1549 (widget-get (newsticker--treeview-get-current-node) :nt-feed
))
1550 newsticker--treeview-vfeed-tree
1551 newsticker--treeview-feed-tree
))
1553 (defun newsticker--treeview-activate-node (node &optional backward
)
1555 If NODE is a tree widget the node's first subnode is activated.
1556 If BACKWARD is non-nil the last subnode of the previous sibling
1558 (newsticker--treeview-set-current-node node
)
1559 (save-current-buffer
1560 (set-buffer (newsticker--treeview-tree-buffer))
1561 (cond ((eq (widget-type node
) 'tree-widget
)
1562 (unless (widget-get node
:open
)
1563 (widget-put node
:open nil
)
1564 (widget-apply-action node
))
1565 (newsticker--treeview-activate-node
1567 (newsticker--treeview-get-last-child node
)
1568 (newsticker--treeview-get-second-child node
))))
1570 (widget-apply-action node
)))))
1572 (defun newsticker--treeview-first-feed ()
1573 "Jump to the depth-first feed in the `newsticker-groups' tree."
1574 (newsticker-treeview-jump
1575 (car (reverse (newsticker--group-get-feeds newsticker-groups t
)))))
1577 (defun newsticker-treeview-next-feed (&optional stay-in-tree
)
1579 Optional argument STAY-IN-TREE prevents moving from real feed
1580 tree to virtual feed tree or vice versa.
1581 Return t if a new feed was activated, nil otherwise."
1583 (newsticker--treeview-restore-layout)
1584 (let ((cur (newsticker--treeview-get-current-node))
1588 (or (newsticker--treeview-get-next-sibling cur
)
1589 (newsticker--treeview-get-next-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
)
1596 (newsticker--treeview-tree-update-highlight)
1600 (defun newsticker-treeview-prev-feed (&optional stay-in-tree
)
1601 "Move to previous feed.
1602 Optional argument STAY-IN-TREE prevents moving from real feed
1603 tree to virtual feed tree or vice versa.
1604 Return t if a new feed was activated, nil otherwise."
1606 (newsticker--treeview-restore-layout)
1607 (let ((cur (newsticker--treeview-get-current-node))
1613 (or (newsticker--treeview-get-prev-sibling cur
)
1614 (newsticker--treeview-get-prev-uncle cur
)
1615 (and (not stay-in-tree
)
1616 (newsticker--treeview-get-other-tree)))
1617 (car (widget-get newsticker--treeview-feed-tree
:children
))))
1620 (newsticker--treeview-activate-node new t
)
1621 (newsticker--treeview-tree-update-highlight)
1626 (defun newsticker-treeview-next-page ()
1627 "Scroll item buffer."
1629 (save-selected-window
1630 (select-window (newsticker--treeview-item-window) t
)
1634 (goto-char (point-min))))))
1637 (defun newsticker--treeview-unfold-node (feed-name)
1638 "Recursively show subtree above the node that represents FEED-NAME."
1639 (let ((node (newsticker--treeview-get-node-of-feed feed-name
)))
1641 (let* ((group-name (car (newsticker--group-find-parent-group
1643 (newsticker--treeview-unfold-node group-name
))
1644 (setq node
(newsticker--treeview-get-node-of-feed feed-name
)))
1646 (with-current-buffer (newsticker--treeview-tree-buffer)
1647 (widget-put node
:nt-selected t
)
1648 (widget-apply-action node
)
1649 (newsticker--treeview-set-current-node node
)))))
1651 (defun newsticker-treeview-jump (feed-name)
1652 "Jump to feed FEED-NAME in newsticker treeview."
1654 (list (let ((completion-ignore-case t
))
1657 (append '("new" "obsolete" "immortal" "all")
1658 (mapcar 'car
(append newsticker-url-list
1659 newsticker-url-list-defaults
)))
1661 (newsticker--treeview-unfold-node feed-name
))
1663 ;; ======================================================================
1665 ;; ======================================================================
1666 (defun newsticker--group-do-find-group (feed-or-group-name parent-node node
)
1667 "Recursively find FEED-OR-GROUP-NAME in PARENT-NODE or NODE."
1668 (cond ((stringp node
)
1669 (when (string= feed-or-group-name node
)
1670 (throw 'found parent-node
)))
1672 (cond ((string= feed-or-group-name
(car node
))
1673 (throw 'found parent-node
))
1674 ((member feed-or-group-name
(cdr node
))
1675 (throw 'found node
))
1679 (newsticker--group-do-find-group
1680 feed-or-group-name node n
)))
1683 (defun newsticker--group-find-parent-group (feed-or-group-name)
1684 "Find group containing FEED-OR-GROUP-NAME."
1687 (newsticker--group-do-find-group feed-or-group-name
1693 (defun newsticker--group-do-get-group (name node
)
1694 "Recursively find group with NAME below NODE."
1695 (if (string= name
(car node
))
1699 (newsticker--group-do-get-group name n
)))
1702 (defun newsticker--group-get-group (name)
1703 "Find group with NAME."
1707 (newsticker--group-do-get-group name n
)))
1711 (defun newsticker--group-get-subgroups (group &optional recursive
)
1712 "Return list of subgroups for GROUP.
1713 If RECURSIVE is non-nil recursively get subgroups and return a nested list."
1717 (setq result
(cons (car n
) result
))
1718 (let ((subgroups (newsticker--group-get-subgroups n recursive
)))
1720 (setq result
(append subgroups result
))))))
1724 (defun newsticker--group-all-groups ()
1725 "Return nested list of all groups."
1726 (newsticker--group-get-subgroups newsticker-groups t
))
1728 (defun newsticker--group-get-feeds (group &optional recursive
)
1729 "Return list of all feeds in GROUP.
1730 If RECURSIVE is non-nil recursively get feeds of subgroups and
1731 return a nested list."
1735 (setq result
(cons n result
))
1737 (let ((subfeeds (newsticker--group-get-feeds n t
)))
1739 (setq result
(append subfeeds result
)))))))
1743 (defun newsticker-group-add-group (name parent
)
1744 "Add group NAME to group PARENT."
1746 (list (read-string "Name of new group: ")
1747 (let ((completion-ignore-case t
))
1748 (completing-read "Name of parent group (optional): " (newsticker--group-all-groups)
1750 (if (newsticker--group-get-group name
)
1751 (error "Group %s exists already" name
))
1752 (let ((p (if (and parent
(not (string= parent
"")))
1753 (newsticker--group-get-group parent
)
1754 newsticker-groups
)))
1756 (error "Parent %s does not exist" parent
))
1757 (setcdr p
(cons (list name
) (cdr p
))))
1758 (newsticker--treeview-tree-update)
1759 (newsticker-treeview-jump newsticker--treeview-current-feed
))
1761 (defun newsticker-group-delete-group (name)
1762 "Delete group NAME."
1764 (list (let ((completion-ignore-case t
))
1765 (completing-read "Delete group: "
1766 (newsticker--group-names)
1767 nil t
(car (newsticker--group-find-parent-group
1768 newsticker--treeview-current-feed
))))))
1769 (let ((parent-group (newsticker--group-find-parent-group name
)))
1770 (unless parent-group
1771 (error "Parent %s does not exist" parent-group
))
1772 (setcdr parent-group
(cl-delete-if (lambda (g)
1774 (string= name
(car g
))))
1775 (cdr parent-group
)))
1776 (newsticker--group-manage-orphan-feeds)
1777 (newsticker--treeview-tree-update)
1778 (newsticker-treeview-update)
1779 (newsticker-treeview-jump newsticker--treeview-current-feed
)))
1781 (defun newsticker--group-do-rename-group (old-name new-name
)
1782 "Actually rename group OLD-NAME to NEW-NAME."
1783 (let ((parent-group (newsticker--group-find-parent-group old-name
)))
1784 (unless parent-group
1785 (error "Parent of %s does not exist" old-name
))
1786 (mapcar (lambda (elt)
1787 (cond ((and (listp elt
)
1788 (string= old-name
(car elt
)))
1789 (cons new-name
(cdr elt
)))
1791 elt
))) parent-group
)))
1793 (defun newsticker-group-rename-group (old-name new-name
)
1794 "Rename group OLD-NAME to NEW-NAME."
1796 (list (let* ((completion-ignore-case t
))
1797 (completing-read "Rename group: "
1798 (newsticker--group-names)
1799 nil t
(car (newsticker--group-find-parent-group
1800 newsticker--treeview-current-feed
))))
1801 (read-string "Rename to: ")))
1802 (setq newsticker-groups
(newsticker--group-do-rename-group old-name new-name
))
1803 (newsticker--group-manage-orphan-feeds)
1804 (newsticker--treeview-tree-update)
1805 (newsticker-treeview-update)
1806 (newsticker-treeview-jump newsticker--treeview-current-feed
))
1808 (defun newsticker--get-group-names (lst)
1809 "Do get the group names from LST."
1810 (delete nil
(cons (car lst
)
1814 (newsticker--get-group-names e
))
1819 (defun newsticker--group-names ()
1820 "Get names of all newsticker groups."
1821 (newsticker--get-group-names newsticker-groups
))
1823 (defun newsticker-group-move-feed (name group-name
&optional no-update
)
1824 "Move feed NAME to group GROUP-NAME.
1825 Update treeview afterwards unless NO-UPDATE is non-nil."
1827 (let ((completion-ignore-case t
))
1828 (list (completing-read "Name of feed or group to move: "
1829 (append (mapcar 'car newsticker-url-list
)
1830 (newsticker--group-names))
1831 nil t newsticker--treeview-current-feed
)
1832 (completing-read "Name of new parent group: " (newsticker--group-names)
1834 (let* ((group (if (and group-name
(not (string= group-name
"")))
1835 (newsticker--group-get-group group-name
)
1837 (moving-group-p (member name
(newsticker--group-names)))
1838 (moved-thing (if moving-group-p
1839 (newsticker--group-get-group name
)
1842 (error "Group %s does not exist" group-name
))
1843 (while (let ((old-group
1844 (newsticker--group-find-parent-group name
)))
1846 (delete moved-thing old-group
))
1848 (setcdr group
(cons moved-thing
(cdr group
)))
1850 (newsticker--treeview-tree-update)
1851 (newsticker-treeview-update)
1852 (newsticker-treeview-jump name
))))
1854 (defun newsticker-group-shift-feed-down ()
1855 "Shift current feed down in its group."
1857 (newsticker--group-shift 1))
1859 (defun newsticker-group-shift-feed-up ()
1860 "Shift current feed down in its group."
1862 (newsticker--group-shift -
1))
1864 (defun newsticker-group-shift-group-down ()
1865 "Shift current group down in its group."
1867 (newsticker--group-shift 1 t
))
1869 (defun newsticker-group-shift-group-up ()
1870 "Shift current group down in its group."
1872 (newsticker--group-shift -
1 t
))
1874 (defun newsticker--group-shift (delta &optional move-group
)
1875 "Shift current feed or group within its parent group.
1876 DELTA is an integer which specifies the direction and the amount
1877 of the shift. If MOVE-GROUP is nil the currently selected feed
1878 `newsticker--treeview-current-feed' is shifted, if it is t then
1879 the current feed's parent group is shifted.."
1880 (let* ((cur-feed newsticker--treeview-current-feed
)
1881 (thing (if move-group
1882 (newsticker--group-find-parent-group cur-feed
)
1884 (parent-group (newsticker--group-find-parent-group
1885 (if move-group
(car thing
) thing
))))
1886 (unless parent-group
1887 (error "Group not found!"))
1888 (let* ((siblings (cdr parent-group
))
1889 (pos (cl-position thing siblings
:test
'equal
))
1890 (tpos (+ pos delta
))
1891 (new-pos (max 0 (min (length siblings
) tpos
)))
1892 (beg (cl-subseq siblings
0 (min pos new-pos
)))
1893 (end (cl-subseq siblings
(+ 1 (max pos new-pos
))))
1894 (p (elt siblings new-pos
)))
1895 (when (not (= pos new-pos
))
1896 (setcdr parent-group
1897 (cl-concatenate 'list
1903 (newsticker--treeview-tree-update)
1904 (newsticker-treeview-update)
1905 (newsticker-treeview-jump cur-feed
)))))
1907 (defun newsticker--count-groups (group)
1908 "Recursively count number of subgroups of GROUP."
1912 (setq result
(+ result
(newsticker--count-groups g
)))))
1916 (defun newsticker--count-grouped-feeds (group)
1917 "Recursively count number of feeds in GROUP and its subgroups."
1921 (setq result
(+ result
(newsticker--count-grouped-feeds g
)))
1922 (setq result
(1+ result
))))
1926 (defun newsticker--group-remove-obsolete-feeds (group)
1927 "Recursively remove obsolete feeds from GROUP."
1929 (urls (append newsticker-url-list newsticker-url-list-defaults
)))
1933 (newsticker--group-remove-obsolete-feeds g
)))
1935 (setq result
(cons sub-groups result
))))
1937 (setq result
(cons g result
)))))
1940 (cons (car group
) (reverse result
))
1943 (defun newsticker--group-manage-orphan-feeds ()
1944 "Put unmanaged feeds into `newsticker-groups'.
1945 Remove obsolete feeds as well.
1946 Return t if groups have changed, nil otherwise."
1947 (unless newsticker-groups
1948 (setq newsticker-groups
'("Feeds")))
1949 (let ((new-feed nil
)
1950 (grouped-feeds (newsticker--count-grouped-feeds newsticker-groups
)))
1952 (unless (newsticker--group-find-parent-group (car f
))
1954 (newsticker-group-move-feed (car f
) nil t
)))
1955 (append newsticker-url-list-defaults newsticker-url-list
))
1956 (setq newsticker-groups
1957 (newsticker--group-remove-obsolete-feeds newsticker-groups
))
1959 (not (= grouped-feeds
1960 (newsticker--count-grouped-feeds newsticker-groups
))))))
1962 ;; ======================================================================
1964 ;; ======================================================================
1965 (defun newsticker--treeview-tree-open-menu (event)
1966 "Open tree menu at position of EVENT."
1967 (let* ((feed-name newsticker--treeview-current-feed
)
1968 (menu (make-sparse-keymap feed-name
)))
1969 (define-key menu
[newsticker-treeview-mark-list-items-old
]
1970 (list 'menu-item
"Mark all items old"
1971 'newsticker-treeview-mark-list-items-old
))
1972 (define-key menu
[newsticker-treeview-get-news
]
1973 (list 'menu-item
(concat "Get news for " feed-name
)
1974 'newsticker-treeview-get-news
))
1975 (define-key menu
[newsticker-get-all-news
]
1976 (list 'menu-item
"Get news for all feeds"
1977 'newsticker-get-all-news
))
1978 (let ((choice (x-popup-menu event menu
)))
1980 (funcall (car choice
))))))
1982 (defvar newsticker-treeview-list-menu
1983 (let ((menu (make-sparse-keymap "Newsticker List")))
1984 (define-key menu
[newsticker-treeview-mark-list-items-old
]
1985 (list 'menu-item
"Mark all items old"
1986 'newsticker-treeview-mark-list-items-old
))
1987 (define-key menu
[newsticker-treeview-mark-item-old
]
1988 (list 'menu-item
"Mark current item old"
1989 'newsticker-treeview-mark-item-old
))
1990 (define-key menu
[newsticker-treeview-toggle-item-immortal
]
1991 (list 'menu-item
"Mark current item immortal (toggle)"
1992 'newsticker-treeview-toggle-item-immortal
))
1993 (define-key menu
[newsticker-treeview-get-news
]
1994 (list 'menu-item
"Get news for current feed"
1995 'newsticker-treeview-get-news
))
1997 "Map for newsticker list menu.")
1999 (defvar newsticker-treeview-item-menu
2000 (let ((menu (make-sparse-keymap "Newsticker Item")))
2001 (define-key menu
[newsticker-treeview-mark-item-old
]
2002 (list 'menu-item
"Mark current item old"
2003 'newsticker-treeview-mark-item-old
))
2004 (define-key menu
[newsticker-treeview-toggle-item-immortal
]
2005 (list 'menu-item
"Mark current item immortal (toggle)"
2006 'newsticker-treeview-toggle-item-immortal
))
2007 (define-key menu
[newsticker-treeview-get-news
]
2008 (list 'menu-item
"Get news for current feed"
2009 'newsticker-treeview-get-news
))
2011 "Map for newsticker item menu.")
2013 (defvar newsticker-treeview-mode-map
2014 (let ((map (make-sparse-keymap 'newsticker-treeview-mode-map
)))
2015 (define-key map
" " 'newsticker-treeview-next-page
)
2016 (define-key map
"a" 'newsticker-add-url
)
2017 (define-key map
"b" 'newsticker-treeview-browse-url-item
)
2018 (define-key map
"F" 'newsticker-treeview-prev-feed
)
2019 (define-key map
"f" 'newsticker-treeview-next-feed
)
2020 (define-key map
"g" 'newsticker-treeview-get-news
)
2021 (define-key map
"G" 'newsticker-get-all-news
)
2022 (define-key map
"i" 'newsticker-treeview-toggle-item-immortal
)
2023 (define-key map
"j" 'newsticker-treeview-jump
)
2024 (define-key map
"n" 'newsticker-treeview-next-item
)
2025 (define-key map
"N" 'newsticker-treeview-next-new-or-immortal-item
)
2026 (define-key map
"O" 'newsticker-treeview-mark-list-items-old
)
2027 (define-key map
"o" 'newsticker-treeview-mark-item-old
)
2028 (define-key map
"p" 'newsticker-treeview-prev-item
)
2029 (define-key map
"P" 'newsticker-treeview-prev-new-or-immortal-item
)
2030 (define-key map
"q" 'newsticker-treeview-quit
)
2031 (define-key map
"S" 'newsticker-treeview-save-item
)
2032 (define-key map
"s" 'newsticker-treeview-save
)
2033 (define-key map
"u" 'newsticker-treeview-update
)
2034 (define-key map
"v" 'newsticker-treeview-browse-url
)
2035 ;;(define-key map "\n" 'newsticker-treeview-scroll-item)
2036 ;;(define-key map "\C-m" 'newsticker-treeview-scroll-item)
2037 (define-key map
"\M-m" 'newsticker-group-move-feed
)
2038 (define-key map
"\M-a" 'newsticker-group-add-group
)
2039 (define-key map
"\M-d" 'newsticker-group-delete-group
)
2040 (define-key map
"\M-r" 'newsticker-group-rename-group
)
2041 (define-key map
[M-down
] 'newsticker-group-shift-feed-down
)
2042 (define-key map
[M-up
] 'newsticker-group-shift-feed-up
)
2043 (define-key map
[M-S-down
] 'newsticker-group-shift-group-down
)
2044 (define-key map
[M-S-up
] 'newsticker-group-shift-group-up
)
2046 "Mode map for newsticker treeview.")
2048 (define-derived-mode newsticker-treeview-mode fundamental-mode
"Newsticker TV"
2049 "Major mode for Newsticker Treeview.
2050 \\{newsticker-treeview-mode-map}"
2051 (if (boundp 'tool-bar-map
)
2052 (set (make-local-variable 'tool-bar-map
)
2053 newsticker-treeview-tool-bar-map
))
2054 (setq buffer-read-only t
2057 (define-derived-mode newsticker-treeview-list-mode newsticker-treeview-mode
2059 (let ((header (concat
2060 (propertize " " 'display
'(space :align-to
0))
2061 (newsticker-treeview-list-make-sort-button "*" 'sort-by-age
)
2062 (propertize " " 'display
'(space :align-to
2))
2063 (if newsticker--treeview-list-show-feed
2065 (propertize " " 'display
'(space :align-to
12)))
2067 (newsticker-treeview-list-make-sort-button "Date"
2069 (if newsticker--treeview-list-show-feed
2070 (propertize " " 'display
'(space :align-to
28))
2071 (propertize " " 'display
'(space :align-to
18)))
2072 (newsticker-treeview-list-make-sort-button "Title"
2074 (setq header-line-format header
))
2075 (define-key newsticker-treeview-list-mode-map
[down-mouse-3
]
2076 newsticker-treeview-list-menu
))
2078 (define-derived-mode newsticker-treeview-item-mode newsticker-treeview-mode
2080 (define-key newsticker-treeview-item-mode-map
[down-mouse-3
]
2081 newsticker-treeview-item-menu
))
2083 (defun newsticker-treeview-tree-click (event)
2084 "Handle click EVENT on a tag in the newsticker tree."
2086 (newsticker--treeview-restore-layout)
2088 (switch-to-buffer (window-buffer (posn-window (event-end event
))))
2089 (newsticker-treeview-tree-do-click (posn-point (event-end event
)) event
)))
2091 (defun newsticker-treeview-tree-do-click (&optional pos event
)
2092 "Actually handle click event.
2093 POS gives the position where EVENT occurred."
2095 (let* ((pos (or pos
(point)))
2096 (nt-id (get-text-property pos
:nt-id
))
2097 (item (get-text-property pos
:nt-item
)))
2099 ;; click in list buffer
2100 (newsticker-treeview-show-item))
2102 ;; click in tree buffer
2103 (let ((w (newsticker--treeview-get-node-by-id nt-id
)))
2105 (newsticker--treeview-tree-update-tag w t t
)
2106 (setq w
(newsticker--treeview-get-node-by-id nt-id
))
2107 (widget-put w
:nt-selected t
)
2108 (widget-apply w
:action event
)
2109 (newsticker--treeview-set-current-node w
)
2111 (eq 'mouse-3
(car event
))
2113 (newsticker--treeview-tree-open-menu event
)))))))
2114 (newsticker--treeview-tree-update-highlight))
2116 (defun newsticker--treeview-restore-layout ()
2117 "Restore treeview buffers."
2120 (let ((win (nth i newsticker--treeview-windows
))
2121 (buf (nth i newsticker--treeview-buffers
)))
2122 (unless (window-live-p win
)
2123 (newsticker--treeview-window-init)
2124 (newsticker--treeview-buffer-init)
2126 (unless (eq (window-buffer win
) buf
)
2127 (set-window-buffer win buf t
))))))
2129 (defun newsticker--treeview-frame-init ()
2130 "Initialize treeview frame."
2131 (when newsticker-treeview-own-frame
2132 (unless (and newsticker--frame
(frame-live-p newsticker--frame
))
2133 (setq newsticker--frame
(make-frame '((name .
"Newsticker")))))
2134 (select-frame-set-input-focus newsticker--frame
)
2135 (raise-frame newsticker--frame
)))
2137 (defun newsticker--treeview-window-init ()
2138 "Initialize treeview windows."
2139 (setq newsticker--saved-window-config
(current-window-configuration))
2140 (setq newsticker--treeview-windows nil
)
2141 (setq newsticker--treeview-buffers nil
)
2142 (delete-other-windows)
2143 (split-window-right newsticker-treeview-treewindow-width
)
2144 (add-to-list 'newsticker--treeview-windows
(selected-window) t
)
2146 (split-window-below newsticker-treeview-listwindow-height
)
2147 (add-to-list 'newsticker--treeview-windows
(selected-window) t
)
2149 (add-to-list 'newsticker--treeview-windows
(selected-window) t
)
2153 (defun newsticker-treeview ()
2154 "Start newsticker treeview."
2156 (newsticker--treeview-load)
2157 (setq newsticker--sentinel-callback
'newsticker-treeview-update
)
2158 (newsticker--treeview-frame-init)
2159 (newsticker--treeview-window-init)
2160 (newsticker--treeview-buffer-init)
2161 (if (newsticker--group-manage-orphan-feeds)
2162 (newsticker--treeview-tree-update))
2163 (newsticker--treeview-set-current-node newsticker--treeview-feed-tree
)
2164 (newsticker-start t
) ;; will start only if not running
2165 (newsticker-treeview-update)
2166 (newsticker--treeview-item-show-text
2168 "Welcome to newsticker!"))
2170 (defun newsticker-treeview-get-news ()
2171 "Get news for current feed."
2173 (when newsticker--treeview-current-feed
2174 (newsticker-get-news newsticker--treeview-current-feed
)))
2176 (provide 'newst-treeview
)
2178 ;;; newst-treeview.el ends here