1 ;;; newst-treeview.el --- Treeview frontend for newsticker. -*- lexical-binding:t -*-
3 ;; Copyright (C) 2008-2015 Free Software Foundation, Inc.
5 ;; Author: Ulf Jasper <ulf.jasper@web.de>
6 ;; Filename: newst-treeview.el
8 ;; Keywords: News, RSS, Atom
11 ;; ======================================================================
13 ;; This file is part of GNU Emacs.
15 ;; GNU Emacs is free software: you can redistribute it and/or modify
16 ;; it under the terms of the GNU General Public License as published by
17 ;; the Free Software Foundation, either version 3 of the License, or
18 ;; (at your option) any later version.
20 ;; GNU Emacs is distributed in the hope that it will be useful,
21 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 ;; GNU General Public License for more details.
25 ;; You should have received a copy of the GNU General Public License
26 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
28 ;; ======================================================================
33 ;; ======================================================================
37 ;; ======================================================================
39 (require 'newst-reader
)
41 (require 'tree-widget
)
44 ;; ======================================================================
46 ;; ======================================================================
47 (defgroup newsticker-treeview nil
48 "Settings for the tree view reader."
49 :group
'newsticker-reader
)
51 (defface newsticker-treeview-face
52 '((((class color
) (background dark
)) :foreground
"white")
53 (((class color
) (background light
)) :foreground
"black"))
54 "Face for newsticker tree."
55 :group
'newsticker-treeview
)
57 (defface newsticker-treeview-new-face
58 '((t :inherit newsticker-treeview-face
:weight bold
))
59 "Face for newsticker tree."
60 :group
'newsticker-treeview
)
62 (defface newsticker-treeview-old-face
63 '((t :inherit newsticker-treeview-face
))
64 "Face for newsticker tree."
65 :group
'newsticker-treeview
)
67 (defface newsticker-treeview-immortal-face
68 '((default :inherit newsticker-treeview-face
:slant italic
)
69 (((class color
) (background dark
)) :foreground
"orange")
70 (((class color
) (background light
)) :foreground
"blue"))
71 "Face for newsticker tree."
72 :group
'newsticker-treeview
)
74 (defface newsticker-treeview-obsolete-face
75 '((t :inherit newsticker-treeview-face
:strike-through t
))
76 "Face for newsticker tree."
77 :group
'newsticker-treeview
)
79 (defface newsticker-treeview-selection-face
80 '((((class color
) (background dark
)) :background
"#bbbbff")
81 (((class color
) (background light
)) :background
"#bbbbff"))
82 "Face for newsticker selection."
83 :group
'newsticker-treeview
)
85 (defcustom newsticker-treeview-date-format
87 "Format for the date column in the treeview list buffer.
88 See `format-time-string' for a list of valid specifiers."
91 :group
'newsticker-treeview
)
93 (defcustom newsticker-treeview-own-frame
95 "Decides whether newsticker treeview creates and uses its own frame."
97 :group
'newsticker-treeview
)
99 (defcustom newsticker-treeview-treewindow-width
101 "Width of tree window in treeview layout.
102 See also `newsticker-treeview-listwindow-height'."
104 :group
'newsticker-treeview
)
106 (defcustom newsticker-treeview-listwindow-height
108 "Height of list window in treeview layout.
109 See also `newsticker-treeview-treewindow-width'."
111 :group
'newsticker-treeview
)
113 (defcustom newsticker-treeview-automatically-mark-displayed-items-as-old
115 "Decides whether to automatically mark displayed items as old.
116 If t an item is marked as old as soon as it is displayed. This
117 applies to newsticker only."
119 :group
'newsticker-treeview
)
121 (defvar newsticker-groups
123 "List of feed groups, used in the treeview frontend.
124 First element is a string giving the group name. Remaining
125 elements are either strings giving a feed name or lists having
126 the same structure as `newsticker-groups'. (newsticker-groups :=
127 groupdefinition, groupdefinition := groupname groupcontent*,
128 groupcontent := feedname | groupdefinition)
130 Example: (\"Topmost group\" \"feed1\" (\"subgroup1\" \"feed 2\")
133 (defcustom newsticker-groups-filename
135 "Name of the newsticker groups settings file. This variable is obsolete."
136 :version
"25.1" ; changed default value to nil
138 :group
'newsticker-treeview
)
139 (make-obsolete-variable 'newsticker-groups-filename
'newsticker-dir
"23.1")
141 ;; ======================================================================
142 ;;; internal variables
143 ;; ======================================================================
144 (defvar newsticker--treeview-windows nil
)
145 (defvar newsticker--treeview-buffers nil
)
146 (defvar newsticker--treeview-current-feed nil
147 "Feed name of currently shown item.")
148 (defvar newsticker--treeview-current-vfeed nil
)
149 (defvar newsticker--treeview-list-show-feed nil
)
150 (defvar newsticker--saved-window-config nil
)
151 (defvar newsticker--selection-overlay nil
152 "Highlight the selected tree node.")
153 (defvar newsticker--tree-selection-overlay nil
154 "Highlight the selected list item.")
155 (defvar newsticker--frame nil
"Special frame for newsticker windows.")
156 (defvar newsticker--treeview-list-sort-order
'sort-by-time
)
157 (defvar newsticker--treeview-current-node-id nil
)
158 (defvar newsticker--treeview-current-tree nil
)
159 (defvar newsticker--treeview-feed-tree nil
)
160 (defvar newsticker--treeview-vfeed-tree nil
)
162 ;; maps for the clickable portions
163 (defvar newsticker--treeview-url-keymap
164 (let ((map (make-sparse-keymap 'newsticker--treeview-url-keymap
)))
165 (define-key map
[mouse-1
] 'newsticker-treeview-mouse-browse-url
)
166 (define-key map
[mouse-2
] 'newsticker-treeview-mouse-browse-url
)
167 (define-key map
"\n" 'newsticker-treeview-browse-url
)
168 (define-key map
"\C-m" 'newsticker-treeview-browse-url
)
169 (define-key map
[(control return
)] 'newsticker-handle-url
)
171 "Key map for click-able headings in the newsticker treeview buffers.")
174 ;; ======================================================================
176 ;; ======================================================================
177 (defsubst newsticker--treeview-tree-buffer
()
178 "Return the tree buffer of the newsticker treeview."
179 (nth 0 newsticker--treeview-buffers
))
180 (defsubst newsticker--treeview-list-buffer
()
181 "Return the list buffer of the newsticker treeview."
182 (nth 1 newsticker--treeview-buffers
))
183 (defsubst newsticker--treeview-item-buffer
()
184 "Return the item buffer of the newsticker treeview."
185 (nth 2 newsticker--treeview-buffers
))
186 (defsubst newsticker--treeview-tree-window
()
187 "Return the tree window of the newsticker treeview."
188 (nth 0 newsticker--treeview-windows
))
189 (defsubst newsticker--treeview-list-window
()
190 "Return the list window of the newsticker treeview."
191 (nth 1 newsticker--treeview-windows
))
192 (defsubst newsticker--treeview-item-window
()
193 "Return the item window of the newsticker treeview."
194 (nth 2 newsticker--treeview-windows
))
196 ;; ======================================================================
197 ;;; utility functions
198 ;; ======================================================================
199 (defun newsticker--treeview-get-id (parent i
)
200 "Create an id for a newsticker treeview node.
201 PARENT is the node's parent, I is an integer."
202 ;;(message "newsticker--treeview-get-id %s"
203 ;; (format "%s-%d" (widget-get parent :nt-id) i))
204 (format "%s-%d" (widget-get parent
:nt-id
) i
))
206 (defun newsticker--treeview-ids-eq (id1 id2
)
207 "Return non-nil if ids ID1 and ID2 are equal."
208 ;;(message "%s/%s" (or id1 -1) (or id2 -1))
209 (and id1 id2
(string= id1 id2
)))
211 (defun newsticker--treeview-nodes-eq (node1 node2
)
212 "Compare treeview nodes NODE1 and NODE2 for equality.
213 Nodes are equal if the have the same newsticker-id. Note that
214 during re-tagging and collapsing/expanding nodes change, while
215 their id stays constant."
216 (let ((id1 (widget-get node1
:nt-id
))
217 (id2 (widget-get node2
:nt-id
)))
218 ;;(message "%s/%s %s/%s" (widget-get node1 :tag) (widget-get node2 :tag)
219 ;; (or id1 -1) (or id2 -1))
220 (or (newsticker--treeview-ids-eq id1 id2
)
221 (string= (widget-get node1
:nt-feed
) (widget-get node2
:nt-feed
)))))
223 (defun newsticker--treeview-do-get-node-of-feed (feed-name startnode
)
224 "Recursively search node for feed FEED-NAME starting from STARTNODE."
225 ;;(message "%s/%s" feed-name (widget-get startnode :nt-feed))
226 (if (string= feed-name
(or (widget-get startnode
:nt-feed
)
227 (widget-get startnode
:nt-vfeed
)))
228 (throw 'found startnode
)
229 (let ((children (widget-get startnode
:children
)))
231 (newsticker--treeview-do-get-node-of-feed feed-name w
)))))
233 (defun newsticker--treeview-get-node-of-feed (feed-name)
234 "Return node for feed FEED-NAME in newsticker treeview tree."
236 (newsticker--treeview-do-get-node-of-feed feed-name
237 newsticker--treeview-feed-tree
)
238 (newsticker--treeview-do-get-node-of-feed feed-name
239 newsticker--treeview-vfeed-tree
)))
241 (defun newsticker--treeview-do-get-node-by-id (id startnode
)
242 "Recursively search node with ID starting from STARTNODE."
243 (if (newsticker--treeview-ids-eq id
(widget-get startnode
:nt-id
))
244 (throw 'found startnode
)
245 (let ((children (widget-get startnode
:children
)))
247 (newsticker--treeview-do-get-node-by-id id w
)))))
249 (defun newsticker--treeview-get-node-by-id (id)
250 "Return node with ID in newsticker treeview tree."
252 (newsticker--treeview-do-get-node-by-id id newsticker--treeview-feed-tree
)
253 (newsticker--treeview-do-get-node-by-id id newsticker--treeview-vfeed-tree
)))
255 (defun newsticker--treeview-get-current-node ()
256 "Return current node in newsticker treeview tree."
257 (newsticker--treeview-get-node-by-id newsticker--treeview-current-node-id
))
259 ;; ======================================================================
261 (unless (fboundp 'declare-function
) (defmacro declare-function
(&rest _
)))
262 (declare-function w3m-toggle-inline-images
"ext:w3m" (&optional force no-cache
))
263 (defvar w3m-fill-column
)
264 (defvar w3-maximum-line-length
)
266 (defun newsticker--treeview-render-text (start end
)
267 "Render text between markers START and END."
268 (if newsticker-html-renderer
269 (condition-case error-data
271 (set-marker-insertion-type end t
)
272 ;; check whether it is necessary to call html renderer
273 ;; (regexp inspired by htmlr.el)
275 (when (re-search-forward
276 "</?[A-Za-z1-6]*\\|&#?[A-Za-z0-9]+;" end t
)
277 ;; (message "%s" (newsticker--title item))
278 (let ((w3m-fill-column (if newsticker-use-full-width
280 (w3-maximum-line-length
281 (if newsticker-use-full-width nil fill-column
)))
283 (funcall newsticker-html-renderer start end
)))
284 ;;(cond ((eq newsticker-html-renderer 'w3m-region)
285 ;; (add-text-properties start end (list 'keymap
286 ;; w3m-minor-mode-map)))
287 ;;((eq newsticker-html-renderer 'w3-region)
288 ;;(add-text-properties start end (list 'keymap w3-mode-map))))
289 (if (eq newsticker-html-renderer
'w3m-region
)
290 (w3m-toggle-inline-images t
))
293 (message "Error: HTML rendering failed: %s, %s"
294 (car error-data
) (cdr error-data
))
298 ;; ======================================================================
300 ;; ======================================================================
301 (defun newsticker--treeview-list-add-item (item feed
&optional show-feed
)
302 "Add news ITEM for FEED to newsticker treeview list window.
303 If string SHOW-FEED is non-nil it is shown in the item string."
304 (setq newsticker--treeview-list-show-feed show-feed
)
305 (with-current-buffer (newsticker--treeview-list-buffer)
306 (let* ((inhibit-read-only t
)
308 (goto-char (point-max))
309 (setq pos1
(point-marker))
311 (insert (propertize " " 'display
'(space :align-to
2)))
312 (insert (if show-feed
315 (format "%-10s" (newsticker--real-feed-name
318 (propertize " " 'display
'(space :align-to
12)))
320 (insert (format-time-string newsticker-treeview-date-format
321 (newsticker--time item
)))
322 (insert (propertize " " 'display
323 (list 'space
:align-to
(if show-feed
28 18))))
324 (setq pos2
(point-marker))
325 (insert (newsticker--title item
))
327 (newsticker--treeview-render-text pos2
(point-marker))
329 (while (search-forward "\n" nil t
)
331 (let ((map (make-sparse-keymap)))
332 (dolist (key'([mouse-1
] [mouse-3
]))
333 (define-key map key
'newsticker-treeview-tree-click
))
334 (define-key map
"\n" 'newsticker-treeview-show-item
)
335 (define-key map
"\C-m" 'newsticker-treeview-show-item
)
336 (add-text-properties pos1
(point-max)
339 :nt-link
(newsticker--link item
)
340 'mouse-face
'highlight
342 'help-echo
(buffer-substring pos2
346 (defun newsticker--treeview-list-clear ()
347 "Clear the newsticker treeview list window."
348 (with-current-buffer (newsticker--treeview-list-buffer)
349 (let ((inhibit-read-only t
))
351 (kill-all-local-variables)
354 (defun newsticker--treeview-list-items-with-age-callback (widget
357 "Fill newsticker treeview list window with items of certain age.
358 This is a callback function for the treeview nodes.
359 Argument WIDGET is the calling treeview widget.
360 Argument CHANGED-WIDGET is the widget that actually has changed.
361 Optional argument AGES is the list of ages that are to be shown."
362 (newsticker--treeview-list-clear)
363 (widget-put widget
:nt-selected t
)
364 (apply #'newsticker--treeview-list-items-with-age ages
))
366 (defun newsticker--treeview-list-items-with-age (&rest ages
)
367 "Actually fill newsticker treeview list window with items of certain age.
368 AGES is the list of ages that are to be shown."
370 (let ((feed-name-symbol (intern (car feed
))))
372 (when (memq (newsticker--age item
) ages
)
373 (newsticker--treeview-list-add-item
374 item feed-name-symbol t
)))
375 (newsticker--treeview-list-sort-items
376 (cdr (newsticker--cache-get-feed feed-name-symbol
))))))
377 (append newsticker-url-list-defaults newsticker-url-list
))
378 (newsticker--treeview-list-update nil
))
380 (defun newsticker--treeview-list-new-items (widget changed-widget
382 "Fill newsticker treeview list window with new items.
383 This is a callback function for the treeview nodes.
384 Argument WIDGET is the calling treeview widget.
385 Argument CHANGED-WIDGET is the widget that actually has changed.
386 Optional argument EVENT is the mouse event that triggered this action."
387 (newsticker--treeview-list-items-with-age-callback widget changed-widget
389 (newsticker--treeview-item-show-text
391 "This is a virtual feed containing all new items"))
393 (defun newsticker--treeview-list-immortal-items (widget changed-widget
395 "Fill newsticker treeview list window with immortal items.
396 This is a callback function for the treeview nodes.
397 Argument WIDGET is the calling treeview widget.
398 Argument CHANGED-WIDGET is the widget that actually has changed.
399 Optional argument EVENT is the mouse event that triggered this action."
400 (newsticker--treeview-list-items-with-age-callback widget changed-widget
402 (newsticker--treeview-item-show-text
404 "This is a virtual feed containing all immortal items."))
406 (defun newsticker--treeview-list-obsolete-items (widget changed-widget
408 "Fill newsticker treeview list window with obsolete items.
409 This is a callback function for the treeview nodes.
410 Argument WIDGET is the calling treeview widget.
411 Argument CHANGED-WIDGET is the widget that actually has changed.
412 Optional argument EVENT is the mouse event that triggered this action."
413 (newsticker--treeview-list-items-with-age-callback widget changed-widget
415 (newsticker--treeview-item-show-text
417 "This is a virtual feed containing all obsolete items."))
419 (defun newsticker--treeview-list-all-items (widget changed-widget
421 "Fill newsticker treeview list window with all items.
422 This is a callback function for the treeview nodes.
423 Argument WIDGET is the calling treeview widget.
424 Argument CHANGED-WIDGET is the widget that actually has changed.
425 Optional argument EVENT is the mouse event that triggered this action."
426 (newsticker--treeview-list-items-with-age-callback widget changed-widget
429 (newsticker--treeview-item-show-text
431 "This is a virtual feed containing all items."))
433 (defun newsticker--treeview-list-items-v (vfeed-name)
434 "List items for virtual feed VFEED-NAME."
436 (cond ((string-match "\\*new\\*" vfeed-name
)
437 (newsticker--treeview-list-items-with-age 'new
))
438 ((string-match "\\*immortal\\*" vfeed-name
)
439 (newsticker--treeview-list-items-with-age 'immortal
))
440 ((string-match "\\*old\\*" vfeed-name
)
441 (newsticker--treeview-list-items-with-age 'old nil
)))
442 (newsticker--treeview-list-update nil
)
445 (defun newsticker--treeview-list-items (feed-name)
446 "List items for feed FEED-NAME."
448 (if (newsticker--treeview-virtual-feed-p feed-name
)
449 (newsticker--treeview-list-items-v feed-name
)
451 (if (eq (newsticker--age item
) 'feed
)
452 (newsticker--treeview-item-show item
(intern feed-name
))
453 (newsticker--treeview-list-add-item item
454 (intern feed-name
))))
455 (newsticker--treeview-list-sort-items
456 (cdr (newsticker--cache-get-feed (intern feed-name
)))))
457 (newsticker--treeview-list-update nil
))))
459 (defun newsticker--treeview-list-feed-items (widget _changed-widget
461 "Callback function for listing feed items.
462 Argument WIDGET is the calling treeview widget.
463 Argument CHANGED-WIDGET is the widget that actually has changed.
464 Optional argument EVENT is the mouse event that triggered this action."
465 (newsticker--treeview-list-clear)
466 (widget-put widget
:nt-selected t
)
467 (let ((feed-name (widget-get widget
:nt-feed
))
468 (vfeed-name (widget-get widget
:nt-vfeed
)))
470 (newsticker--treeview-list-items feed-name
)
471 (newsticker--treeview-list-items-v vfeed-name
))))
473 (defun newsticker--treeview-list-compare-item-by-age (item1 item2
)
474 "Compare two news items ITEM1 and ITEM2 wrt age."
476 (let ((age1 (newsticker--age item1
))
477 (age2 (newsticker--age item2
)))
478 (cond ((eq age1
'new
)
481 (cond ((eq age2
'new
)
488 (cond ((eq age2
'new
)
499 (defun newsticker--treeview-list-compare-item-by-age-reverse (item1 item2
)
500 "Compare two news items ITEM1 and ITEM2 wrt age in reverse order."
501 (newsticker--treeview-list-compare-item-by-age item2 item1
))
503 (defun newsticker--treeview-list-compare-item-by-time (item1 item2
)
504 "Compare two news items ITEM1 and ITEM2 wrt time values."
505 (newsticker--cache-item-compare-by-time item1 item2
))
507 (defun newsticker--treeview-list-compare-item-by-time-reverse (item1 item2
)
508 "Compare two news items ITEM1 and ITEM2 wrt time values in reverse order."
509 (newsticker--cache-item-compare-by-time item2 item1
))
511 (defun newsticker--treeview-list-compare-item-by-title (item1 item2
)
512 "Compare two news items ITEM1 and ITEM2 wrt title."
513 (newsticker--cache-item-compare-by-title item1 item2
))
515 (defun newsticker--treeview-list-compare-item-by-title-reverse (item1 item2
)
516 "Compare two news items ITEM1 and ITEM2 wrt title in reverse order."
517 (newsticker--cache-item-compare-by-title item2 item1
))
519 (defun newsticker--treeview-list-sort-items (items)
520 "Return sorted copy of list ITEMS.
521 The sort function is chosen according to the value of
522 `newsticker--treeview-list-sort-order'."
524 (cond ((eq newsticker--treeview-list-sort-order
'sort-by-age
)
525 'newsticker--treeview-list-compare-item-by-age
)
526 ((eq newsticker--treeview-list-sort-order
527 'sort-by-age-reverse
)
528 'newsticker--treeview-list-compare-item-by-age-reverse
)
529 ((eq newsticker--treeview-list-sort-order
'sort-by-time
)
530 'newsticker--treeview-list-compare-item-by-time
)
531 ((eq newsticker--treeview-list-sort-order
532 'sort-by-time-reverse
)
533 'newsticker--treeview-list-compare-item-by-time-reverse
)
534 ((eq newsticker--treeview-list-sort-order
'sort-by-title
)
535 'newsticker--treeview-list-compare-item-by-title
)
536 ((eq newsticker--treeview-list-sort-order
537 'sort-by-title-reverse
)
538 'newsticker--treeview-list-compare-item-by-title-reverse
)
540 'newsticker--treeview-list-compare-item-by-title
))))
541 (sort (copy-sequence items
) sort-fun
)))
543 (defun newsticker--treeview-list-update-faces ()
544 "Update faces in the treeview list buffer."
546 (with-current-buffer (newsticker--treeview-list-buffer)
548 (let ((inhibit-read-only t
))
549 (goto-char (point-min))
551 (let* ((pos (point-at-eol))
552 (item (get-text-property (point) :nt-item
))
553 (age (newsticker--age item
))
554 (selected (get-text-property (point) :nt-selected
))
555 (face (cond ((eq age
'new
)
556 'newsticker-treeview-new-face
)
558 'newsticker-treeview-old-face
)
560 'newsticker-treeview-immortal-face
)
562 'newsticker-treeview-obsolete-face
)
565 (put-text-property (point) pos
'face face
)
567 (move-overlay newsticker--selection-overlay
(point)
568 (1+ pos
) ;include newline
570 (if selected
(setq pos-sel
(point)))
572 (beginning-of-line)))))) ;; FIXME!?
574 (if (window-live-p (newsticker--treeview-list-window))
575 (set-window-point (newsticker--treeview-list-window) pos-sel
)))))
577 (defun newsticker--treeview-list-clear-highlight ()
578 "Clear the highlight in the treeview list buffer."
579 (with-current-buffer (newsticker--treeview-list-buffer)
580 (let ((inhibit-read-only t
))
581 (put-text-property (point-min) (point-max) :nt-selected nil
))
582 (newsticker--treeview-list-update-faces)))
584 (defun newsticker--treeview-list-update-highlight ()
585 "Update the highlight in the treeview list buffer."
586 (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)
668 (set-buffer (newsticker--treeview-list-buffer))
669 (goto-char (point-min))
672 (let ((it (get-text-property (point) :nt-item
)))
674 (newsticker--treeview-list-update-highlight)
675 (newsticker--treeview-list-update-faces)
676 (newsticker--treeview-item-show
677 item
(get-text-property (point) :nt-feed
))
681 (goto-char (point-min))
682 (throw 'found nil
))))))
684 ;; ======================================================================
686 ;; ======================================================================
687 (defun newsticker--treeview-item-show-text (title description
)
688 "Show text in treeview item buffer consisting of TITLE and DESCRIPTION."
689 (with-current-buffer (newsticker--treeview-item-buffer)
690 (when (fboundp 'w3m-process-stop
)
691 (w3m-process-stop (current-buffer)))
692 (let ((inhibit-read-only t
))
694 (kill-all-local-variables)
697 (put-text-property (point-min) (point) 'face
'newsticker-feed-face
)
698 (insert "\n\n" description
)
699 (when newsticker-justification
700 (fill-region (point-min) (point-max) newsticker-justification
))
701 (newsticker-treeview-item-mode)
702 (goto-char (point-min)))))
704 (defun newsticker--treeview-item-show (item feed-name-symbol
)
705 "Show news ITEM coming from FEED-NAME-SYMBOL in treeview item buffer."
706 (setq newsticker--treeview-current-feed
(symbol-name feed-name-symbol
))
707 (with-current-buffer (newsticker--treeview-item-buffer)
708 (when (fboundp 'w3m-process-stop
)
709 (w3m-process-stop (current-buffer)))
710 (let ((inhibit-read-only t
)
711 (is-rendered-HTML nil
)
713 (marker1 (make-marker))
714 (marker2 (make-marker)))
716 (kill-all-local-variables)
719 (when (and item feed-name-symbol
)
720 (let ((wwidth (1- (if (window-live-p (newsticker--treeview-item-window))
721 (window-width (newsticker--treeview-item-window))
723 (if newsticker-use-full-width
724 (set (make-local-variable 'fill-column
) wwidth
))
725 (set (make-local-variable 'fill-column
) (min fill-column
727 (let ((desc (newsticker--desc item
)))
728 (insert "\n" (or desc
"[No Description]")))
729 (set-marker marker1
(1+ (point-min)))
730 (set-marker marker2
(point-max))
731 (setq is-rendered-HTML
(newsticker--treeview-render-text marker1
733 (when (and newsticker-justification
734 (not is-rendered-HTML
))
735 (fill-region marker1 marker2 newsticker-justification
))
737 (newsticker-treeview-item-mode)
738 (goto-char (point-min))
739 ;; insert logo at top
740 (let* ((newsticker-enable-logo-manipulations nil
)
741 (img (newsticker--image-read feed-name-symbol nil
40)))
742 (if (and (display-images-p) img
)
743 (newsticker--insert-image img
(car item
))
744 (insert (newsticker--real-feed-name feed-name-symbol
))))
745 (add-text-properties (point-min) (point)
746 (list 'face
'newsticker-feed-face
747 'mouse-face
'highlight
748 'help-echo
"Visit in web browser."
749 :nt-link
(newsticker--link item
)
750 'keymap newsticker--treeview-url-keymap
))
756 (insert (newsticker--title item
) "\n")
757 (set-marker marker1 pos
)
758 (set-marker marker2
(point))
759 (newsticker--treeview-render-text marker1 marker2
)
760 (put-text-property pos
(point) 'face
'newsticker-treeview-new-face
)
764 (put-text-property marker2
(point) 'face
'newsticker-treeview-face
)
765 (set-marker marker2
(point))
766 (when newsticker-justification
767 (fill-region marker1 marker2 newsticker-justification
))
769 (add-text-properties marker1
(1- (point))
770 (list 'mouse-face
'highlight
771 'help-echo
"Visit in web browser."
772 :nt-link
(newsticker--link item
)
773 'keymap newsticker--treeview-url-keymap
))
774 (insert (format-time-string newsticker-date-format
775 (newsticker--time item
)))
779 ;; insert enclosures and rest at bottom
780 (goto-char (point-max))
783 (newsticker--insert-enclosure item newsticker--treeview-url-keymap
)
784 (put-text-property pos
(point) 'face
'newsticker-enclosure-face
)
787 (set-marker marker1 pos
)
788 (newsticker--print-extra-elements item newsticker--treeview-url-keymap t
)
789 (set-marker marker2
(point))
790 (newsticker--treeview-render-text marker1 marker2
)
791 (put-text-property marker1 marker2
'face
'newsticker-extra-face
)
792 (goto-char (point-min)))))
793 (if (and newsticker-treeview-automatically-mark-displayed-items-as-old
795 (memq (newsticker--age item
) '(new obsolete
)))
796 (let ((newsticker-treeview-automatically-mark-displayed-items-as-old nil
))
797 (newsticker-treeview-mark-item-old t
)
798 (newsticker--treeview-list-update-faces)))
799 (if (window-live-p (newsticker--treeview-item-window))
800 (set-window-point (newsticker--treeview-item-window) 1)))
802 (defun newsticker--treeview-item-update ()
803 "Update the treeview item buffer and window."
805 (if (window-live-p (newsticker--treeview-item-window))
806 (set-window-buffer (newsticker--treeview-item-window)
807 (newsticker--treeview-item-buffer)))
808 (set-buffer (newsticker--treeview-item-buffer))
809 (let ((inhibit-read-only t
))
811 (newsticker-treeview-item-mode)))
813 ;; ======================================================================
815 ;; ======================================================================
816 (defun newsticker--treeview-tree-expand (tree)
818 Callback function for tree widget that adds nodes for feeds and subgroups."
819 (tree-widget-set-theme "folder")
820 (let ((group (widget-get tree
:nt-group
))
824 (setq nt-id
(newsticker--treeview-get-id tree i
))
827 (let* ((g-name (car g
)))
829 :tag
,(newsticker--treeview-tree-get-tag g-name nil nt-id
)
830 :expander newsticker--treeview-tree-expand
831 :expander-p
(lambda (&rest ignore
) t
)
835 :leaf-icon newsticker--tree-widget-leaf-icon
836 :keep
(:nt-feed
:num-new
:nt-id
:open
);; :nt-group
838 (let ((tag (newsticker--treeview-tree-get-tag g nil nt-id
)))
840 :leaf-icon newsticker--tree-widget-leaf-icon
842 :action newsticker--treeview-list-feed-items
848 (defun newsticker--tree-widget-icon-create (icon)
849 "Create the ICON widget."
850 (let* ((g (widget-get (widget-get icon
:node
) :nt-feed
))
851 (ico (and g
(newsticker--icon-read (intern g
)))))
854 (widget-put icon
:tag-glyph ico
)
855 (widget-default-create icon
)
856 ;; Insert space between the icon and the node widget.
860 'display
(list 'space
:width tree-widget-space-width
)))
861 ;; fallback: default icon
862 (widget-put icon
:leaf-icon
'tree-widget-leaf-icon
)
863 (tree-widget-icon-create icon
))))
865 (defun newsticker--treeview-tree-expand-status (tree &optional _changed-widget
867 "Expand the vfeed TREE.
868 Optional arguments CHANGED-WIDGET and EVENT are ignored."
869 (tree-widget-set-theme "folder")
870 (list `(item :tag
,(newsticker--treeview-tree-get-tag nil
"new")
872 :action newsticker--treeview-list-new-items
873 :nt-id
,(newsticker--treeview-get-id tree
0)
875 `(item :tag
,(newsticker--treeview-tree-get-tag nil
"immortal")
877 :action newsticker--treeview-list-immortal-items
878 :nt-id
,(newsticker--treeview-get-id tree
1)
880 `(item :tag
,(newsticker--treeview-tree-get-tag nil
"obsolete")
882 :action newsticker--treeview-list-obsolete-items
883 :nt-id
,(newsticker--treeview-get-id tree
2)
885 `(item :tag
,(newsticker--treeview-tree-get-tag nil
"all")
887 :action newsticker--treeview-list-all-items
888 :nt-id
,(newsticker--treeview-get-id tree
3)
891 (defun newsticker--treeview-virtual-feed-p (feed-name)
892 "Return non-nil if FEED-NAME is a virtual feed."
893 (string-match "\\*.*\\*" feed-name
))
895 (define-widget 'newsticker--tree-widget-leaf-icon
'tree-widget-icon
896 "Icon for a tree-widget leaf node."
899 :create
'newsticker--tree-widget-icon-create
900 :button-face
'default
)
902 (defun newsticker--treeview-tree-update ()
903 "Update treeview tree buffer and window."
905 (if (window-live-p (newsticker--treeview-tree-window))
906 (set-window-buffer (newsticker--treeview-tree-window)
907 (newsticker--treeview-tree-buffer)))
908 (set-buffer (newsticker--treeview-tree-buffer))
909 (kill-all-local-variables)
910 (let ((inhibit-read-only t
))
912 (tree-widget-set-theme "folder")
913 (setq newsticker--treeview-feed-tree
914 (widget-create 'tree-widget
915 :tag
(newsticker--treeview-propertize-tag
917 :expander
'newsticker--treeview-tree-expand
918 :expander-p
(lambda (&rest _
) t
)
919 :leaf-icon
'newsticker--tree-widget-leaf-icon
920 :nt-group
(cdr newsticker-groups
)
924 (setq newsticker--treeview-vfeed-tree
925 (widget-create 'tree-widget
926 :tag
(newsticker--treeview-propertize-tag
927 "Virtual Feeds" 0 "vfeeds")
928 :expander
'newsticker--treeview-tree-expand-status
929 :expander-p
(lambda (&rest _
) t
)
930 :leaf-icon
'newsticker--tree-widget-leaf-icon
934 (use-local-map widget-keymap
)
936 (newsticker-treeview-mode)))
938 (defun newsticker--treeview-propertize-tag (tag &optional num-new nt-id feed
940 "Return propertized copy of string TAG.
941 Optional argument NUM-NEW is used for choosing face, other
942 arguments NT-ID, FEED, and VFEED are added as properties."
943 ;;(message "newsticker--treeview-propertize-tag '%s' %s" feed nt-id)
944 (let ((face 'newsticker-treeview-face
)
945 (map (make-sparse-keymap)))
946 (if (and num-new
(> num-new
0))
947 (setq face
'newsticker-treeview-new-face
))
948 (dolist (key '([mouse-1
] [mouse-3
]))
949 (define-key map key
'newsticker-treeview-tree-click
))
950 (define-key map
"\n" 'newsticker-treeview-tree-do-click
)
951 (define-key map
"\C-m" 'newsticker-treeview-tree-do-click
)
952 (propertize tag
'face face
'keymap map
957 'mouse-face
'highlight
)))
959 (defun newsticker--treeview-tree-get-tag (feed-name vfeed-name
961 "Return a tag string for either FEED-NAME or, if it is nil, for VFEED-NAME.
962 Optional argument NT-ID is added to the tag's properties."
963 (let (tag (num-new 0))
965 (cond ((string= vfeed-name
"new")
966 (setq num-new
(newsticker--stat-num-items-total 'new
))
967 (setq tag
(format "New items (%d)" num-new
)))
968 ((string= vfeed-name
"immortal")
969 (setq num-new
(newsticker--stat-num-items-total 'immortal
))
970 (setq tag
(format "Immortal items (%d)" num-new
)))
971 ((string= vfeed-name
"obsolete")
972 (setq num-new
(newsticker--stat-num-items-total 'obsolete
))
973 (setq tag
(format "Obsolete items (%d)" num-new
)))
974 ((string= vfeed-name
"all")
975 (setq num-new
(newsticker--stat-num-items-total))
976 (setq tag
(format "All items (%d)" num-new
)))))
978 (setq num-new
(newsticker--stat-num-items-for-group
979 (intern feed-name
) 'new
'immortal
))
982 (newsticker--real-feed-name (intern feed-name
))
985 (newsticker--treeview-propertize-tag tag num-new
987 feed-name vfeed-name
))))
989 (defun newsticker--stat-num-items-for-group (feed-name-symbol &rest ages
)
990 "Count number of items in feed FEED-NAME-SYMBOL that have an age matching AGES."
991 ;;(message "newsticker--stat-num-items-for-group %s %s" feed-name-symbol ages)
992 (let ((result (apply #'newsticker--stat-num-items feed-name-symbol ages
)))
994 (setq result
(+ result
995 (apply #'newsticker--stat-num-items
(intern f-n
)
997 (newsticker--group-get-feeds
998 (newsticker--group-get-group (symbol-name feed-name-symbol
)) t
))
1001 (defun newsticker--treeview-count-node-items (feed &optional isvirtual
)
1002 "Count number of relevant items for a treeview node.
1003 FEED gives the name of the feed or group. If ISVIRTUAL is non-nil
1004 the feed is a virtual feed."
1008 (cond ((string= feed
"new")
1009 (setq num-new
(newsticker--stat-num-items-total 'new
)))
1010 ((string= feed
"immortal")
1011 (setq num-new
(newsticker--stat-num-items-total 'immortal
)))
1012 ((string= feed
"obsolete")
1013 (setq num-new
(newsticker--stat-num-items-total 'obsolete
)))
1014 ((string= feed
"all")
1015 (setq num-new
(newsticker--stat-num-items-total))))
1016 (setq num-new
(newsticker--stat-num-items-for-group
1017 (intern feed
) 'new
'immortal
))))
1020 (defun newsticker--treeview-tree-update-tag (w &optional recursive
1022 "Update tag for tree widget W.
1023 If RECURSIVE is non-nil recursively update parent widgets as
1024 well. Argument IGNORE is ignored. Note that this function, if
1025 called recursively, makes w invalid. You should keep w's nt-id in
1027 (let* ((parent (widget-get w
:parent
))
1028 (feed (or (widget-get w
:nt-feed
) (widget-get parent
:nt-feed
)))
1029 (vfeed (or (widget-get w
:nt-vfeed
) (widget-get parent
:nt-vfeed
)))
1030 (nt-id (or (widget-get w
:nt-id
) (widget-get parent
:nt-id
)))
1031 (num-new (newsticker--treeview-count-node-items (or feed vfeed
)
1033 (tag (newsticker--treeview-tree-get-tag feed vfeed nt-id
))
1034 (n (widget-get w
:node
)))
1037 (newsticker--treeview-tree-update-tag parent
)))
1040 (widget-put n
:tag tag
))
1041 (widget-put w
:num-new num-new
)
1042 (widget-put w
:tag tag
)
1043 (when (marker-position (widget-get w
:from
))
1045 ;; FIXME: This moves point!!!!
1046 (with-current-buffer (newsticker--treeview-tree-buffer)
1047 (widget-value-set w
(widget-value w
)))
1050 (defun newsticker--treeview-tree-do-update-tags (widget)
1051 "Actually recursively update tags for WIDGET."
1053 (let ((children (widget-get widget
:children
)))
1054 (dolist (w children
)
1055 (newsticker--treeview-tree-do-update-tags w
))
1056 (newsticker--treeview-tree-update-tag widget
))))
1058 (defun newsticker--treeview-tree-update-tags (&rest _ignore
)
1059 "Update all tags of all trees.
1060 Arguments are ignored."
1061 (save-current-buffer
1062 (set-buffer (newsticker--treeview-tree-buffer))
1063 (let ((inhibit-read-only t
))
1064 (newsticker--treeview-tree-do-update-tags
1065 newsticker--treeview-feed-tree
)
1066 (newsticker--treeview-tree-do-update-tags
1067 newsticker--treeview-vfeed-tree
))
1068 (tree-widget-set-theme "folder")))
1070 (defun newsticker--treeview-tree-update-highlight ()
1071 "Update highlight in tree buffer."
1072 (let ((pos (widget-get (newsticker--treeview-get-current-node) :from
)))
1073 (unless (or (integerp pos
) (and (markerp pos
) (marker-position pos
)))
1074 (setq pos
(widget-get (widget-get
1075 (newsticker--treeview-get-current-node)
1077 (when (or (integerp pos
) (and (markerp pos
) (marker-position pos
)))
1078 (with-current-buffer (newsticker--treeview-tree-buffer)
1080 (move-overlay newsticker--tree-selection-overlay
1081 (point-at-bol) (1+ (point-at-eol))
1083 (if (window-live-p (newsticker--treeview-tree-window))
1084 (set-window-point (newsticker--treeview-tree-window) pos
)))))
1086 ;; ======================================================================
1088 ;; ======================================================================
1089 (defvar newsticker-treeview-tool-bar-map
1090 (if (featurep 'xemacs
)
1092 (if (boundp 'tool-bar-map
)
1093 (let ((tool-bar-map (make-sparse-keymap)))
1094 (tool-bar-add-item "newsticker/prev-feed"
1095 'newsticker-treeview-prev-feed
1096 'newsticker-treeview-prev-feed
1097 :help
"Go to previous feed"
1098 ;;:enable '(newsticker-previous-feed-available-p) FIXME
1100 (tool-bar-add-item "newsticker/prev-item"
1101 'newsticker-treeview-prev-item
1102 'newsticker-treeview-prev-item
1103 :help
"Go to previous item"
1104 ;;:enable '(newsticker-previous-item-available-p) FIXME
1106 (tool-bar-add-item "newsticker/next-item"
1107 'newsticker-treeview-next-item
1108 'newsticker-treeview-next-item
1110 :help
"Go to next item"
1111 ;;:enable '(newsticker-next-item-available-p) FIXME
1113 (tool-bar-add-item "newsticker/next-feed"
1114 'newsticker-treeview-next-feed
1115 'newsticker-treeview-next-feed
1116 :help
"Go to next feed"
1117 ;;:enable '(newsticker-next-feed-available-p) FIXME
1119 (tool-bar-add-item "newsticker/mark-immortal"
1120 'newsticker-treeview-toggle-item-immortal
1121 'newsticker-treeview-toggle-item-immortal
1122 :help
"Toggle current item as immortal"
1123 ;;:enable '(newsticker-item-not-immortal-p) FIXME
1125 (tool-bar-add-item "newsticker/mark-read"
1126 'newsticker-treeview-mark-item-old
1127 'newsticker-treeview-mark-item-old
1128 :help
"Mark current item as read"
1129 ;;:enable '(newsticker-item-not-old-p) FIXME
1131 (tool-bar-add-item "newsticker/get-all"
1132 'newsticker-get-all-news
1133 'newsticker-get-all-news
1134 :help
"Get news for all feeds")
1135 (tool-bar-add-item "newsticker/update"
1136 'newsticker-treeview-update
1137 'newsticker-treeview-update
1138 :help
"Update newsticker buffer")
1139 (tool-bar-add-item "newsticker/browse-url"
1140 'newsticker-browse-url
1141 'newsticker-browse-url
1142 :help
"Browse URL for item at point")
1143 ;; standard icons / actions
1144 (define-key tool-bar-map
[newsticker-sep-1
]
1145 (list 'menu-item
"--double-line"))
1146 (tool-bar-add-item "close"
1147 'newsticker-treeview-quit
1148 'newsticker-treeview-quit
1149 :help
"Close newsticker")
1150 (tool-bar-add-item "preferences"
1151 'newsticker-customize
1152 'newsticker-customize
1153 :help
"Customize newsticker")
1156 ;; ======================================================================
1158 ;; ======================================================================
1160 (defun newsticker-treeview-mouse-browse-url (event)
1161 "Call `browse-url' for the link of the item at which the EVENT occurred."
1164 (switch-to-buffer (window-buffer (posn-window (event-end event
))))
1165 (let ((url (get-text-property (posn-point (event-end event
))
1169 (if newsticker-automatically-mark-visited-items-as-old
1170 (newsticker-treeview-mark-item-old))))))
1172 (defun newsticker-treeview-browse-url ()
1173 "Call `browse-url' for the link of the item at point."
1175 (with-current-buffer (newsticker--treeview-list-buffer)
1176 (let ((url (get-text-property (point) :nt-link
)))
1179 (if newsticker-automatically-mark-visited-items-as-old
1180 (newsticker-treeview-mark-item-old))))))
1182 (defun newsticker--treeview-buffer-init ()
1183 "Initialize all treeview buffers."
1184 (setq newsticker--treeview-buffers nil
)
1185 (add-to-list 'newsticker--treeview-buffers
1186 (get-buffer-create "*Newsticker Tree*") t
)
1187 (add-to-list 'newsticker--treeview-buffers
1188 (get-buffer-create "*Newsticker List*") t
)
1189 (add-to-list 'newsticker--treeview-buffers
1190 (get-buffer-create "*Newsticker Item*") t
)
1192 (unless newsticker--selection-overlay
1193 (with-current-buffer (newsticker--treeview-list-buffer)
1194 (setq buffer-undo-list t
)
1195 (setq newsticker--selection-overlay
(make-overlay (point-min)
1197 (overlay-put newsticker--selection-overlay
'face
1198 'newsticker-treeview-selection-face
)))
1199 (unless newsticker--tree-selection-overlay
1200 (with-current-buffer (newsticker--treeview-tree-buffer)
1201 (setq buffer-undo-list t
)
1202 (setq newsticker--tree-selection-overlay
(make-overlay (point-min)
1204 (overlay-put newsticker--tree-selection-overlay
'face
1205 'newsticker-treeview-selection-face
)))
1207 (newsticker--treeview-tree-update)
1208 (newsticker--treeview-list-update t
)
1209 (newsticker--treeview-item-update))
1211 (defun newsticker-treeview-update ()
1212 "Update all treeview buffers and windows.
1213 Note: does not update the layout."
1215 (let ((cur-item (newsticker--treeview-get-selected-item)))
1216 (if (newsticker--group-manage-orphan-feeds)
1217 (newsticker--treeview-tree-update))
1218 (newsticker--treeview-list-update t
)
1219 (newsticker--treeview-item-update)
1220 (newsticker--treeview-tree-update-tags)
1221 (cond (newsticker--treeview-current-feed
1222 (newsticker--treeview-list-items newsticker--treeview-current-feed
))
1223 (newsticker--treeview-current-vfeed
1224 (newsticker--treeview-list-items-with-age
1225 (intern newsticker--treeview-current-vfeed
))))
1226 (newsticker--treeview-tree-update-highlight)
1227 (newsticker--treeview-list-update-highlight)
1228 (let ((cur-feed (or newsticker--treeview-current-feed
1229 newsticker--treeview-current-vfeed
)))
1230 (if (and cur-feed cur-item
)
1231 (newsticker--treeview-list-select cur-item
)))))
1233 (defun newsticker-treeview-quit ()
1234 "Quit newsticker treeview."
1236 (setq newsticker--sentinel-callback nil
)
1237 (bury-buffer "*Newsticker Tree*")
1238 (bury-buffer "*Newsticker List*")
1239 (bury-buffer "*Newsticker Item*")
1240 (set-window-configuration newsticker--saved-window-config
)
1241 (when newsticker--frame
1242 (if (frame-live-p newsticker--frame
)
1243 (delete-frame newsticker--frame
))
1244 (setq newsticker--frame nil
))
1245 (newsticker-treeview-save))
1247 (defun newsticker-treeview-save ()
1248 "Save treeview group settings."
1250 (let ((coding-system-for-write 'utf-8
)
1251 (buf (find-file-noselect (concat newsticker-dir
"/groups"))))
1253 (with-current-buffer buf
1254 (setq buffer-undo-list t
)
1256 (insert ";; -*- coding: utf-8 -*-\n")
1257 (insert (prin1-to-string newsticker-groups
))
1261 (defun newsticker--treeview-load ()
1262 "Load treeview settings."
1263 (let* ((coding-system-for-read 'utf-8
)
1265 (or (and newsticker-groups-filename
1267 (expand-file-name newsticker-groups-filename
)
1268 (expand-file-name (concat newsticker-dir
"/groups"))))
1269 (file-exists-p newsticker-groups-filename
)
1272 (concat "Obsolete variable `newsticker-groups-filename' "
1273 "points to existing file \"%s\".\n"
1275 newsticker-groups-filename
))
1276 newsticker-groups-filename
)
1277 (concat newsticker-dir
"/groups")))
1278 (buf (and (file-exists-p filename
)
1279 (find-file-noselect filename
))))
1280 (and newsticker-groups-filename
1281 (file-exists-p newsticker-groups-filename
)
1283 (concat "Delete the file \"%s\",\nto which the obsolete "
1284 "variable `newsticker-groups-filename' points ? ")
1285 newsticker-groups-filename
))
1286 (delete-file newsticker-groups-filename
))
1289 (goto-char (point-min))
1291 (setq newsticker-groups
(read buf
))
1293 (message "Error while reading newsticker groups file!")
1294 (setq newsticker-groups nil
)))
1295 (kill-buffer buf
))))
1298 (defun newsticker-treeview-scroll-item ()
1299 "Scroll current item."
1301 (save-selected-window
1302 (select-window (newsticker--treeview-item-window) t
)
1305 (defun newsticker-treeview-show-item ()
1306 "Show current item."
1308 (newsticker--treeview-restore-layout)
1309 (newsticker--treeview-list-update-highlight)
1310 (with-current-buffer (newsticker--treeview-list-buffer)
1312 (let ((item (get-text-property (point) :nt-item
))
1313 (feed (get-text-property (point) :nt-feed
)))
1314 (newsticker--treeview-item-show item feed
)))
1315 (newsticker--treeview-tree-update-tag
1316 (newsticker--treeview-get-current-node) t
)
1317 (newsticker--treeview-tree-update-highlight))
1319 (defun newsticker-treeview-next-item ()
1320 "Move to next item."
1322 (newsticker--treeview-restore-layout)
1323 (save-current-buffer
1324 (set-buffer (newsticker--treeview-list-buffer))
1325 (if (newsticker--treeview-list-highlight-start)
1329 (newsticker-treeview-show-item))
1331 (defun newsticker-treeview-prev-item ()
1332 "Move to previous item."
1334 (newsticker--treeview-restore-layout)
1335 (save-current-buffer
1336 (set-buffer (newsticker--treeview-list-buffer))
1338 (newsticker-treeview-show-item))
1340 (defun newsticker-treeview-next-new-or-immortal-item (&optional
1343 "Move to next new or immortal item.
1344 Will move to next feed until an item is found. Will not move if
1345 optional argument CURRENT-ITEM-COUNTS is t and current item is
1346 new or immortal. Will not move from virtual to ordinary feed
1347 tree or vice versa if optional argument DONT-WRAP-TREES is non-nil."
1349 (newsticker--treeview-restore-layout)
1350 (newsticker--treeview-list-clear-highlight)
1351 (unless (catch 'found
1352 (let ((move (not current-item-counts
)))
1354 (save-current-buffer
1355 (set-buffer (newsticker--treeview-list-buffer))
1356 (when move
(forward-line 1)
1359 (throw 'found nil
))))
1360 (when (memq (newsticker--age
1361 (newsticker--treeview-get-selected-item))
1363 (newsticker-treeview-show-item)
1366 (let ((wrap-trees (not dont-wrap-trees
)))
1367 (when (or (newsticker-treeview-next-feed t
)
1368 (and wrap-trees
(newsticker--treeview-first-feed)))
1369 (newsticker-treeview-next-new-or-immortal-item t t
)))))
1371 (defun newsticker-treeview-prev-new-or-immortal-item ()
1372 "Move to previous new or immortal item.
1373 Will move to previous feed until an item is found."
1375 (newsticker--treeview-restore-layout)
1376 (newsticker--treeview-list-clear-highlight)
1377 (unless (catch 'found
1379 (save-current-buffer
1380 (set-buffer (newsticker--treeview-list-buffer))
1384 (when (memq (newsticker--age
1385 (newsticker--treeview-get-selected-item))
1387 (newsticker-treeview-show-item)
1390 (throw 'found nil
))))
1391 (when (newsticker-treeview-prev-feed t
)
1392 (set-buffer (newsticker--treeview-list-buffer))
1393 (goto-char (point-max))
1394 (newsticker-treeview-prev-new-or-immortal-item))))
1396 (defun newsticker--treeview-get-selected-item ()
1397 "Return item that is currently selected in list buffer."
1398 (with-current-buffer (newsticker--treeview-list-buffer)
1400 (get-text-property (point) :nt-item
)))
1402 (defun newsticker-treeview-mark-item-old (&optional dont-proceed
)
1403 "Mark current item as old unless it is obsolete.
1404 Move to next item unless DONT-PROCEED is non-nil."
1406 (let ((item (newsticker--treeview-get-selected-item)))
1407 (unless (eq (newsticker--age item
) 'obsolete
)
1408 (newsticker--treeview-mark-item item
'old
)))
1409 (unless dont-proceed
1410 (newsticker-treeview-next-item)))
1412 (defun newsticker-treeview-toggle-item-immortal ()
1413 "Toggle immortality of current item."
1415 (let* ((item (newsticker--treeview-get-selected-item))
1416 (new-age (if (eq (newsticker--age item
) 'immortal
)
1419 (newsticker--treeview-mark-item item new-age
)
1420 (newsticker-treeview-next-item)))
1422 (defun newsticker--treeview-mark-item (item new-age
)
1423 "Mark ITEM with NEW-AGE."
1425 (setcar (nthcdr 4 item
) new-age
)
1426 ;; clean up ticker FIXME
1428 (newsticker--cache-save-feed
1429 (newsticker--cache-get-feed (intern newsticker--treeview-current-feed
)))
1430 (newsticker--treeview-tree-do-update-tags newsticker--treeview-vfeed-tree
))
1432 (defun newsticker-treeview-mark-list-items-old ()
1433 "Mark all listed items as old."
1435 (let ((current-feed (or newsticker--treeview-current-feed
1436 newsticker--treeview-current-vfeed
)))
1437 (with-current-buffer (newsticker--treeview-list-buffer)
1438 (goto-char (point-min))
1440 (let ((item (get-text-property (point) :nt-item
)))
1441 (unless (memq (newsticker--age item
) '(immortal obsolete
))
1442 (newsticker--treeview-mark-item item
'old
)))
1444 (newsticker--treeview-tree-update-tags)
1446 (newsticker-treeview-jump current-feed
))))
1448 (defun newsticker-treeview-save-item ()
1449 "Save current item."
1451 (newsticker-save-item (or newsticker--treeview-current-feed
1452 newsticker--treeview-current-vfeed
)
1453 (newsticker--treeview-get-selected-item)))
1455 (defun newsticker-treeview-browse-url-item ()
1456 "Convert current item to HTML and call `browse-url' on result."
1458 (newsticker-browse-url-item (or newsticker--treeview-current-feed
1459 newsticker--treeview-current-vfeed
)
1460 (newsticker--treeview-get-selected-item)))
1462 (defun newsticker--treeview-set-current-node (node)
1463 "Make NODE the current node."
1464 (with-current-buffer (newsticker--treeview-tree-buffer)
1465 (setq newsticker--treeview-current-node-id
1466 (widget-get node
:nt-id
))
1467 (setq newsticker--treeview-current-feed
(widget-get node
:nt-feed
))
1468 (setq newsticker--treeview-current-vfeed
(widget-get node
:nt-vfeed
))
1469 (newsticker--treeview-tree-update-highlight)))
1471 (defun newsticker--treeview-get-first-child (node)
1472 "Get first child of NODE."
1473 (let ((children (widget-get node
:children
)))
1478 (defun newsticker--treeview-get-second-child (node)
1479 "Get scond child of NODE."
1480 (let ((children (widget-get node
:children
)))
1482 (car (cdr children
))
1485 (defun newsticker--treeview-get-last-child (node)
1486 "Get last child of NODE."
1487 ;;(message "newsticker--treeview-get-last-child %s" (widget-get node :tag))
1488 (let ((children (widget-get node
:children
)))
1490 (car (reverse children
))
1493 (defun newsticker--treeview-get-feed-vfeed (node)
1494 "Get (virtual) feed of NODE."
1495 (or (widget-get node
:nt-feed
) (widget-get node
:nt-vfeed
)))
1497 (defun newsticker--treeview-get-next-sibling (node)
1498 "Get next sibling of NODE."
1499 (let ((parent (widget-get node
:parent
)))
1501 (let ((children (widget-get parent
:children
)))
1503 (if (newsticker--treeview-nodes-eq (car children
) node
)
1504 (throw 'found
(car (cdr children
))))
1505 (setq children
(cdr children
)))))))
1507 (defun newsticker--treeview-get-prev-sibling (node)
1508 "Get previous sibling of NODE."
1509 (let ((parent (widget-get node
:parent
)))
1511 (let ((children (widget-get parent
:children
))
1514 (if (and (newsticker--treeview-nodes-eq (car children
) node
)
1515 (widget-get prev
:nt-id
))
1516 (throw 'found prev
))
1517 (setq prev
(car children
))
1518 (setq children
(cdr children
)))))))
1520 (defun newsticker--treeview-get-next-uncle (node)
1521 "Get next uncle of NODE, i.e. parent's next sibling."
1522 (let* ((parent (widget-get node
:parent
))
1523 (grand-parent (widget-get parent
:parent
)))
1525 (let ((uncles (widget-get grand-parent
:children
)))
1527 (if (newsticker--treeview-nodes-eq (car uncles
) parent
)
1528 (throw 'found
(car (cdr uncles
))))
1529 (setq uncles
(cdr uncles
)))))))
1531 (defun newsticker--treeview-get-prev-uncle (node)
1532 "Get previous uncle of NODE, i.e. parent's previous sibling."
1533 (let* ((parent (widget-get node
:parent
))
1534 (grand-parent (widget-get parent
:parent
)))
1536 (let ((uncles (widget-get grand-parent
:children
))
1539 (if (newsticker--treeview-nodes-eq (car uncles
) parent
)
1540 (throw 'found prev
))
1541 (setq prev
(car uncles
))
1542 (setq uncles
(cdr uncles
)))))))
1544 (defun newsticker--treeview-get-other-tree ()
1546 (if (and (newsticker--treeview-get-current-node)
1547 (widget-get (newsticker--treeview-get-current-node) :nt-feed
))
1548 newsticker--treeview-vfeed-tree
1549 newsticker--treeview-feed-tree
))
1551 (defun newsticker--treeview-activate-node (node &optional backward
)
1553 If NODE is a tree widget the node's first subnode is activated.
1554 If BACKWARD is non-nil the last subnode of the previous sibling
1556 (newsticker--treeview-set-current-node node
)
1557 (save-current-buffer
1558 (set-buffer (newsticker--treeview-tree-buffer))
1559 (cond ((eq (widget-type node
) 'tree-widget
)
1560 (unless (widget-get node
:open
)
1561 (widget-put node
:open nil
)
1562 (widget-apply-action node
))
1563 (newsticker--treeview-activate-node
1565 (newsticker--treeview-get-last-child node
)
1566 (newsticker--treeview-get-second-child node
))))
1568 (widget-apply-action node
)))))
1570 (defun newsticker--treeview-first-feed ()
1571 "Jump to the depth-first feed in the `newsticker-groups' tree."
1572 (newsticker-treeview-jump
1573 (car (reverse (newsticker--group-get-feeds newsticker-groups t
)))))
1575 (defun newsticker-treeview-next-feed (&optional stay-in-tree
)
1577 Optional argument STAY-IN-TREE prevents moving from real feed
1578 tree to virtual feed tree or vice versa.
1579 Return t if a new feed was activated, nil otherwise."
1581 (newsticker--treeview-restore-layout)
1582 (let ((cur (newsticker--treeview-get-current-node))
1586 (or (newsticker--treeview-get-next-sibling cur
)
1587 (newsticker--treeview-get-next-uncle cur
)
1588 (and (not stay-in-tree
)
1589 (newsticker--treeview-get-other-tree)))
1590 (car (widget-get newsticker--treeview-feed-tree
:children
))))
1593 (newsticker--treeview-activate-node new
)
1594 (newsticker--treeview-tree-update-highlight)
1598 (defun newsticker-treeview-prev-feed (&optional stay-in-tree
)
1599 "Move to previous feed.
1600 Optional argument STAY-IN-TREE prevents moving from real feed
1601 tree to virtual feed tree or vice versa.
1602 Return t if a new feed was activated, nil otherwise."
1604 (newsticker--treeview-restore-layout)
1605 (let ((cur (newsticker--treeview-get-current-node))
1611 (or (newsticker--treeview-get-prev-sibling cur
)
1612 (newsticker--treeview-get-prev-uncle cur
)
1613 (and (not stay-in-tree
)
1614 (newsticker--treeview-get-other-tree)))
1615 (car (widget-get newsticker--treeview-feed-tree
:children
))))
1618 (newsticker--treeview-activate-node new t
)
1619 (newsticker--treeview-tree-update-highlight)
1624 (defun newsticker-treeview-next-page ()
1625 "Scroll item buffer."
1627 (save-selected-window
1628 (select-window (newsticker--treeview-item-window) t
)
1632 (goto-char (point-min))))))
1635 (defun newsticker--treeview-unfold-node (feed-name)
1636 "Recursively show subtree above the node that represents FEED-NAME."
1637 (let ((node (newsticker--treeview-get-node-of-feed feed-name
)))
1639 (let* ((group-name (car (newsticker--group-find-parent-group
1641 (newsticker--treeview-unfold-node group-name
))
1642 (setq node
(newsticker--treeview-get-node-of-feed feed-name
)))
1644 (with-current-buffer (newsticker--treeview-tree-buffer)
1645 (widget-put node
:nt-selected t
)
1646 (widget-apply-action node
)
1647 (newsticker--treeview-set-current-node node
)))))
1649 (defun newsticker-treeview-jump (feed-name)
1650 "Jump to feed FEED-NAME in newsticker treeview."
1652 (list (let ((completion-ignore-case t
))
1655 (append '("new" "obsolete" "immortal" "all")
1656 (mapcar #'car
(append newsticker-url-list
1657 newsticker-url-list-defaults
)))
1659 (newsticker--treeview-unfold-node feed-name
))
1661 ;; ======================================================================
1663 ;; ======================================================================
1664 (defun newsticker--group-do-find-group (feed-or-group-name parent-node node
)
1665 "Recursively find FEED-OR-GROUP-NAME in PARENT-NODE or NODE."
1666 (cond ((stringp node
)
1667 (when (string= feed-or-group-name node
)
1668 (throw 'found parent-node
)))
1670 (cond ((string= feed-or-group-name
(car node
))
1671 (throw 'found parent-node
))
1672 ((member feed-or-group-name
(cdr node
))
1673 (throw 'found node
))
1677 (newsticker--group-do-find-group
1678 feed-or-group-name node n
)))
1681 (defun newsticker--group-find-parent-group (feed-or-group-name)
1682 "Find group containing FEED-OR-GROUP-NAME."
1685 (newsticker--group-do-find-group feed-or-group-name
1691 (defun newsticker--group-do-get-group (name node
)
1692 "Recursively find group with NAME below NODE."
1693 (if (string= name
(car node
))
1697 (newsticker--group-do-get-group name n
)))
1700 (defun newsticker--group-get-group (name)
1701 "Find group with NAME."
1705 (newsticker--group-do-get-group name n
)))
1709 (defun newsticker--group-get-subgroups (group &optional recursive
)
1710 "Return list of subgroups for GROUP.
1711 If RECURSIVE is non-nil recursively get subgroups and return a nested list."
1715 (setq result
(cons (car n
) result
))
1716 (let ((subgroups (newsticker--group-get-subgroups n recursive
)))
1718 (setq result
(append subgroups result
))))))
1722 (defun newsticker--group-all-groups ()
1723 "Return nested list of all groups."
1724 (newsticker--group-get-subgroups newsticker-groups t
))
1726 (defun newsticker--group-get-feeds (group &optional recursive
)
1727 "Return list of all feeds in GROUP.
1728 If RECURSIVE is non-nil recursively get feeds of subgroups and
1729 return a nested list."
1733 (setq result
(cons n result
))
1735 (let ((subfeeds (newsticker--group-get-feeds n t
)))
1737 (setq result
(append subfeeds result
)))))))
1741 (defun newsticker-group-add-group (name parent
)
1742 "Add group NAME to group PARENT."
1744 (list (read-string "Name of new group: ")
1745 (let ((completion-ignore-case t
))
1746 (completing-read "Name of parent group (optional): " (newsticker--group-all-groups)
1748 (if (newsticker--group-get-group name
)
1749 (error "Group %s exists already" name
))
1750 (let ((p (if (and parent
(not (string= parent
"")))
1751 (newsticker--group-get-group parent
)
1752 newsticker-groups
)))
1754 (error "Parent %s does not exist" parent
))
1755 (setcdr p
(cons (list name
) (cdr p
))))
1756 (newsticker--treeview-tree-update)
1757 (newsticker-treeview-jump newsticker--treeview-current-feed
))
1759 (defun newsticker-group-delete-group (name)
1760 "Delete group NAME."
1762 (list (let ((completion-ignore-case t
))
1763 (completing-read "Delete group: "
1764 (newsticker--group-names)
1765 nil t
(car (newsticker--group-find-parent-group
1766 newsticker--treeview-current-feed
))))))
1767 (let ((parent-group (newsticker--group-find-parent-group name
)))
1768 (unless parent-group
1769 (error "Parent %s does not exist" parent-group
))
1770 (setcdr parent-group
(cl-delete-if (lambda (g)
1772 (string= name
(car g
))))
1773 (cdr parent-group
)))
1774 (newsticker--group-manage-orphan-feeds)
1775 (newsticker--treeview-tree-update)
1776 (newsticker-treeview-update)
1777 (newsticker-treeview-jump newsticker--treeview-current-feed
)))
1779 (defun newsticker--group-do-rename-group (old-name new-name
)
1780 "Actually rename group OLD-NAME to NEW-NAME."
1781 (let ((parent-group (newsticker--group-find-parent-group old-name
)))
1782 (unless parent-group
1783 (error "Parent of %s does not exist" old-name
))
1784 (mapcar (lambda (elt)
1785 (cond ((and (listp elt
)
1786 (string= old-name
(car elt
)))
1787 (cons new-name
(cdr elt
)))
1792 (defun newsticker-group-rename-group (old-name new-name
)
1793 "Rename group OLD-NAME to NEW-NAME."
1795 (list (let* ((completion-ignore-case t
))
1796 (completing-read "Rename group: "
1797 (newsticker--group-names)
1798 nil t
(car (newsticker--group-find-parent-group
1799 newsticker--treeview-current-feed
))))
1800 (read-string "Rename to: ")))
1801 (setq newsticker-groups
(newsticker--group-do-rename-group old-name new-name
))
1802 (newsticker--group-manage-orphan-feeds)
1803 (newsticker--treeview-tree-update)
1804 (newsticker-treeview-update)
1805 (newsticker-treeview-jump newsticker--treeview-current-feed
))
1807 (defun newsticker--get-group-names (lst)
1808 "Do get the group names from LST."
1809 (delete nil
(cons (car lst
)
1813 (newsticker--get-group-names e
))
1818 (defun newsticker--group-names ()
1819 "Get names of all newsticker groups."
1820 (newsticker--get-group-names newsticker-groups
))
1822 (defun newsticker-group-move-feed (name group-name
&optional no-update
)
1823 "Move feed NAME to group GROUP-NAME.
1824 Update treeview afterwards unless NO-UPDATE is non-nil."
1826 (let ((completion-ignore-case t
))
1827 (list (completing-read "Name of feed or group to move: "
1828 (append (mapcar #'car newsticker-url-list
)
1829 (newsticker--group-names))
1830 nil t newsticker--treeview-current-feed
)
1831 (completing-read "Name of new parent group: " (newsticker--group-names)
1833 (let* ((group (if (and group-name
(not (string= group-name
"")))
1834 (newsticker--group-get-group group-name
)
1836 (moving-group-p (member name
(newsticker--group-names)))
1837 (moved-thing (if moving-group-p
1838 (newsticker--group-get-group name
)
1841 (error "Group %s does not exist" group-name
))
1842 (while (let ((old-group
1843 (newsticker--group-find-parent-group name
)))
1845 (delete moved-thing old-group
))
1847 (setcdr group
(cons moved-thing
(cdr group
)))
1849 (newsticker--treeview-tree-update)
1850 (newsticker-treeview-update)
1851 (newsticker-treeview-jump name
))))
1853 (defun newsticker-group-shift-feed-down ()
1854 "Shift current feed down in its group."
1856 (newsticker--group-shift 1))
1858 (defun newsticker-group-shift-feed-up ()
1859 "Shift current feed down in its group."
1861 (newsticker--group-shift -
1))
1863 (defun newsticker-group-shift-group-down ()
1864 "Shift current group down in its group."
1866 (newsticker--group-shift 1 t
))
1868 (defun newsticker-group-shift-group-up ()
1869 "Shift current group down in its group."
1871 (newsticker--group-shift -
1 t
))
1873 (defun newsticker--group-shift (delta &optional move-group
)
1874 "Shift current feed or group within its parent group.
1875 DELTA is an integer which specifies the direction and the amount
1876 of the shift. If MOVE-GROUP is nil the currently selected feed
1877 `newsticker--treeview-current-feed' is shifted, if it is t then
1878 the current feed's parent group is shifted.."
1879 (let* ((cur-feed newsticker--treeview-current-feed
)
1880 (thing (if move-group
1881 (newsticker--group-find-parent-group cur-feed
)
1883 (parent-group (newsticker--group-find-parent-group
1884 (if move-group
(car thing
) thing
))))
1885 (unless parent-group
1886 (error "Group not found!"))
1887 (let* ((siblings (cdr parent-group
))
1888 (pos (cl-position thing siblings
:test
'equal
))
1889 (tpos (+ pos delta
))
1890 (new-pos (max 0 (min (length siblings
) tpos
)))
1891 (beg (cl-subseq siblings
0 (min pos new-pos
)))
1892 (end (cl-subseq siblings
(+ 1 (max pos new-pos
))))
1893 (p (elt siblings new-pos
)))
1894 (when (not (= pos new-pos
))
1895 (setcdr parent-group
1896 (cl-concatenate 'list
1902 (newsticker--treeview-tree-update)
1903 (newsticker-treeview-update)
1904 (newsticker-treeview-jump cur-feed
)))))
1906 (defun newsticker--count-groups (group)
1907 "Recursively count number of subgroups of GROUP."
1911 (setq result
(+ result
(newsticker--count-groups g
)))))
1915 (defun newsticker--count-grouped-feeds (group)
1916 "Recursively count number of feeds in GROUP and its subgroups."
1920 (setq result
(+ result
(newsticker--count-grouped-feeds g
)))
1921 (setq result
(1+ result
))))
1925 (defun newsticker--group-remove-obsolete-feeds (group)
1926 "Recursively remove obsolete feeds from GROUP."
1928 (urls (append newsticker-url-list newsticker-url-list-defaults
)))
1932 (newsticker--group-remove-obsolete-feeds g
)))
1934 (setq result
(cons sub-groups result
))))
1936 (setq result
(cons g result
)))))
1939 (cons (car group
) (reverse result
))
1942 (defun newsticker--group-manage-orphan-feeds ()
1943 "Put unmanaged feeds into `newsticker-groups'.
1944 Remove obsolete feeds as well.
1945 Return t if groups have changed, nil otherwise."
1946 (unless newsticker-groups
1947 (setq newsticker-groups
'("Feeds")))
1948 (let ((new-feed nil
)
1949 (grouped-feeds (newsticker--count-grouped-feeds newsticker-groups
)))
1951 (unless (newsticker--group-find-parent-group (car f
))
1953 (newsticker-group-move-feed (car f
) nil t
)))
1954 (append newsticker-url-list-defaults newsticker-url-list
))
1955 (setq newsticker-groups
1956 (newsticker--group-remove-obsolete-feeds newsticker-groups
))
1958 (not (= grouped-feeds
1959 (newsticker--count-grouped-feeds newsticker-groups
))))))
1961 ;; ======================================================================
1963 ;; ======================================================================
1964 (defun newsticker--treeview-tree-open-menu (event)
1965 "Open tree menu at position of EVENT."
1966 (let* ((feed-name newsticker--treeview-current-feed
)
1967 (menu (make-sparse-keymap feed-name
)))
1968 (define-key menu
[newsticker-treeview-mark-list-items-old
]
1969 (list 'menu-item
"Mark all items old"
1970 'newsticker-treeview-mark-list-items-old
))
1971 (define-key menu
[newsticker-treeview-get-news
]
1972 (list 'menu-item
(concat "Get news for " feed-name
)
1973 'newsticker-treeview-get-news
))
1974 (define-key menu
[newsticker-get-all-news
]
1975 (list 'menu-item
"Get news for all feeds"
1976 'newsticker-get-all-news
))
1977 (let ((choice (x-popup-menu event menu
)))
1979 (funcall (car choice
))))))
1981 (defvar newsticker-treeview-list-menu
1982 (let ((menu (make-sparse-keymap "Newsticker List")))
1983 (define-key menu
[newsticker-treeview-mark-list-items-old
]
1984 (list 'menu-item
"Mark all items old"
1985 'newsticker-treeview-mark-list-items-old
))
1986 (define-key menu
[newsticker-treeview-mark-item-old
]
1987 (list 'menu-item
"Mark current item old"
1988 'newsticker-treeview-mark-item-old
))
1989 (define-key menu
[newsticker-treeview-toggle-item-immortal
]
1990 (list 'menu-item
"Mark current item immortal (toggle)"
1991 'newsticker-treeview-toggle-item-immortal
))
1992 (define-key menu
[newsticker-treeview-get-news
]
1993 (list 'menu-item
"Get news for current feed"
1994 'newsticker-treeview-get-news
))
1996 "Map for newsticker list menu.")
1998 (defvar newsticker-treeview-item-menu
1999 (let ((menu (make-sparse-keymap "Newsticker Item")))
2000 (define-key menu
[newsticker-treeview-mark-item-old
]
2001 (list 'menu-item
"Mark current item old"
2002 'newsticker-treeview-mark-item-old
))
2003 (define-key menu
[newsticker-treeview-toggle-item-immortal
]
2004 (list 'menu-item
"Mark current item immortal (toggle)"
2005 'newsticker-treeview-toggle-item-immortal
))
2006 (define-key menu
[newsticker-treeview-get-news
]
2007 (list 'menu-item
"Get news for current feed"
2008 'newsticker-treeview-get-news
))
2010 "Map for newsticker item menu.")
2012 (defvar newsticker-treeview-mode-map
2013 (let ((map (make-sparse-keymap 'newsticker-treeview-mode-map
)))
2014 (define-key map
" " 'newsticker-treeview-next-page
)
2015 (define-key map
"a" 'newsticker-add-url
)
2016 (define-key map
"b" 'newsticker-treeview-browse-url-item
)
2017 (define-key map
"F" 'newsticker-treeview-prev-feed
)
2018 (define-key map
"f" 'newsticker-treeview-next-feed
)
2019 (define-key map
"g" 'newsticker-treeview-get-news
)
2020 (define-key map
"G" 'newsticker-get-all-news
)
2021 (define-key map
"i" 'newsticker-treeview-toggle-item-immortal
)
2022 (define-key map
"j" 'newsticker-treeview-jump
)
2023 (define-key map
"n" 'newsticker-treeview-next-item
)
2024 (define-key map
"N" 'newsticker-treeview-next-new-or-immortal-item
)
2025 (define-key map
"O" 'newsticker-treeview-mark-list-items-old
)
2026 (define-key map
"o" 'newsticker-treeview-mark-item-old
)
2027 (define-key map
"p" 'newsticker-treeview-prev-item
)
2028 (define-key map
"P" 'newsticker-treeview-prev-new-or-immortal-item
)
2029 (define-key map
"q" 'newsticker-treeview-quit
)
2030 (define-key map
"S" 'newsticker-treeview-save-item
)
2031 (define-key map
"s" 'newsticker-treeview-save
)
2032 (define-key map
"u" 'newsticker-treeview-update
)
2033 (define-key map
"v" 'newsticker-treeview-browse-url
)
2034 ;;(define-key map "\n" 'newsticker-treeview-scroll-item)
2035 ;;(define-key map "\C-m" 'newsticker-treeview-scroll-item)
2036 (define-key map
"\M-m" 'newsticker-group-move-feed
)
2037 (define-key map
"\M-a" 'newsticker-group-add-group
)
2038 (define-key map
"\M-d" 'newsticker-group-delete-group
)
2039 (define-key map
"\M-r" 'newsticker-group-rename-group
)
2040 (define-key map
[M-down
] 'newsticker-group-shift-feed-down
)
2041 (define-key map
[M-up
] 'newsticker-group-shift-feed-up
)
2042 (define-key map
[M-S-down
] 'newsticker-group-shift-group-down
)
2043 (define-key map
[M-S-up
] 'newsticker-group-shift-group-up
)
2045 "Mode map for newsticker treeview.")
2047 (define-derived-mode newsticker-treeview-mode fundamental-mode
"Newsticker TV"
2048 "Major mode for Newsticker Treeview.
2049 \\{newsticker-treeview-mode-map}"
2050 (if (boundp 'tool-bar-map
)
2051 (set (make-local-variable 'tool-bar-map
)
2052 newsticker-treeview-tool-bar-map
))
2053 (setq buffer-read-only t
2056 (define-derived-mode newsticker-treeview-list-mode newsticker-treeview-mode
2058 (let ((header (concat
2059 (propertize " " 'display
'(space :align-to
0))
2060 (newsticker-treeview-list-make-sort-button "*" 'sort-by-age
)
2061 (propertize " " 'display
'(space :align-to
2))
2062 (if newsticker--treeview-list-show-feed
2064 (propertize " " 'display
'(space :align-to
12)))
2066 (newsticker-treeview-list-make-sort-button "Date"
2068 (if newsticker--treeview-list-show-feed
2069 (propertize " " 'display
'(space :align-to
28))
2070 (propertize " " 'display
'(space :align-to
18)))
2071 (newsticker-treeview-list-make-sort-button "Title"
2073 (setq header-line-format header
))
2074 (define-key newsticker-treeview-list-mode-map
[down-mouse-3
]
2075 newsticker-treeview-list-menu
))
2077 (define-derived-mode newsticker-treeview-item-mode newsticker-treeview-mode
2079 (define-key newsticker-treeview-item-mode-map
[down-mouse-3
]
2080 newsticker-treeview-item-menu
))
2082 (defun newsticker-treeview-tree-click (event)
2083 "Handle click EVENT on a tag in the newsticker tree."
2085 (newsticker--treeview-restore-layout)
2087 (switch-to-buffer (window-buffer (posn-window (event-end event
))))
2088 (newsticker-treeview-tree-do-click (posn-point (event-end event
)) event
)))
2090 (defun newsticker-treeview-tree-do-click (&optional pos event
)
2091 "Actually handle click event.
2092 POS gives the position where EVENT occurred."
2094 (let* ((pos (or pos
(point)))
2095 (nt-id (get-text-property pos
:nt-id
))
2096 (item (get-text-property pos
:nt-item
)))
2098 ;; click in list buffer
2099 (newsticker-treeview-show-item))
2101 ;; click in tree buffer
2102 (let ((w (newsticker--treeview-get-node-by-id nt-id
)))
2104 (newsticker--treeview-tree-update-tag w t t
)
2105 (setq w
(newsticker--treeview-get-node-by-id nt-id
))
2106 (widget-put w
:nt-selected t
)
2107 (widget-apply w
:action event
)
2108 (newsticker--treeview-set-current-node w
)
2110 (eq 'mouse-3
(car event
))
2112 (newsticker--treeview-tree-open-menu event
)))))))
2113 (newsticker--treeview-tree-update-highlight))
2115 (defun newsticker--treeview-restore-layout ()
2116 "Restore treeview buffers."
2119 (let ((win (nth i newsticker--treeview-windows
))
2120 (buf (nth i newsticker--treeview-buffers
)))
2121 (unless (window-live-p win
)
2122 (newsticker--treeview-window-init)
2123 (newsticker--treeview-buffer-init)
2125 (unless (eq (window-buffer win
) buf
)
2126 (set-window-buffer win buf t
))))))
2128 (defun newsticker--treeview-frame-init ()
2129 "Initialize treeview frame."
2130 (when newsticker-treeview-own-frame
2131 (unless (and newsticker--frame
(frame-live-p newsticker--frame
))
2132 (setq newsticker--frame
(make-frame '((name .
"Newsticker")))))
2133 (select-frame-set-input-focus newsticker--frame
)
2134 (raise-frame newsticker--frame
)))
2136 (defun newsticker--treeview-window-init ()
2137 "Initialize treeview windows."
2138 (setq newsticker--saved-window-config
(current-window-configuration))
2139 (setq newsticker--treeview-windows nil
)
2140 (setq newsticker--treeview-buffers nil
)
2141 (delete-other-windows)
2142 (split-window-right newsticker-treeview-treewindow-width
)
2143 (add-to-list 'newsticker--treeview-windows
(selected-window) t
)
2145 (split-window-below newsticker-treeview-listwindow-height
)
2146 (add-to-list 'newsticker--treeview-windows
(selected-window) t
)
2148 (add-to-list 'newsticker--treeview-windows
(selected-window) t
)
2152 (defun newsticker-treeview ()
2153 "Start newsticker treeview."
2155 (newsticker--treeview-load)
2156 (setq newsticker--sentinel-callback
'newsticker-treeview-update
)
2157 (newsticker--treeview-frame-init)
2158 (newsticker--treeview-window-init)
2159 (newsticker--treeview-buffer-init)
2160 (if (newsticker--group-manage-orphan-feeds)
2161 (newsticker--treeview-tree-update))
2162 (newsticker--treeview-set-current-node newsticker--treeview-feed-tree
)
2163 (newsticker-start t
) ;; will start only if not running
2164 (newsticker-treeview-update)
2165 (newsticker--treeview-item-show-text
2167 "Welcome to newsticker!"))
2169 (defun newsticker-treeview-get-news ()
2170 "Get news for current feed."
2172 (when newsticker--treeview-current-feed
2173 (newsticker-get-news newsticker--treeview-current-feed
)))
2175 (provide 'newst-treeview
)
2177 ;;; newst-treeview.el ends here