;;; newst-treeview.el --- Treeview frontend for newsticker.
-;; Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+;; Copyright (C) 2008-2011 Free Software Foundation, Inc.
;; Author: Ulf Jasper <ulf.jasper@web.de>
;; Filename: newst-treeview.el
;; URL: http://www.nongnu.org/newsticker
;; Created: 2007
;; Keywords: News, RSS, Atom
-;; Time-stamp: "22. Januar 2009, 20:41:31 (ulf)"
+;; Time-stamp: "6. Dezember 2009, 19:17:28 (ulf)"
+;; Package: newsticker
;; ======================================================================
;; ======================================================================
;;; Code:
-(require 'newsticker-reader "newst-reader")
+(require 'newst-reader)
(require 'widget)
(require 'tree-widget)
(require 'wid-edit)
30
"Width of tree window in treeview layout.
See also `newsticker-treeview-listwindow-height'."
- :type 'int
+ :type 'integer
:group 'newsticker-treeview)
(defcustom newsticker-treeview-listwindow-height
10
"Height of list window in treeview layout.
See also `newsticker-treeview-treewindow-width'."
- :type 'int
+ :type 'integer
:group 'newsticker-treeview)
(defcustom newsticker-treeview-automatically-mark-displayed-items-as-old
"Name of the newsticker groups settings file."
:type 'string
:group 'newsticker-treeview)
-(make-obsolete 'newsticker-groups-filename 'newsticker-dir)
+(make-obsolete 'newsticker-groups-filename 'newsticker-dir "23.1")
;; ======================================================================
;;; internal variables
"Add news ITEM for FEED to newsticker treeview list window.
If string SHOW-FEED is non-nil it is shown in the item string."
(setq newsticker--treeview-list-show-feed show-feed)
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
+ (with-current-buffer (newsticker--treeview-list-buffer)
(let* ((inhibit-read-only t)
pos1 pos2)
(goto-char (point-max))
(defun newsticker--treeview-list-clear ()
"Clear the newsticker treeview list window."
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
+ (with-current-buffer (newsticker--treeview-list-buffer)
(let ((inhibit-read-only t))
(erase-buffer)
(kill-all-local-variables)
(defun newsticker--treeview-list-update-faces ()
"Update faces in the treeview list buffer."
(let (pos-sel)
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
- (let ((inhibit-read-only t))
- (goto-char (point-min))
- (while (not (eobp))
- (let* ((pos (save-excursion (end-of-line) (point)))
- (item (get-text-property (point) :nt-item))
- (age (newsticker--age item))
- (selected (get-text-property (point) :nt-selected))
- (face (cond ((eq age 'new)
- 'newsticker-treeview-new-face)
- ((eq age 'old)
- 'newsticker-treeview-old-face)
- ((eq age 'immortal)
- 'newsticker-treeview-immortal-face)
- ((eq age 'obsolete)
- 'newsticker-treeview-obsolete-face)
- (t
- 'bold))))
- (put-text-property (point) pos 'face face)
- (if selected
- (move-overlay newsticker--selection-overlay (point)
- (1+ pos) ;include newline
- (current-buffer)))
- (if selected (setq pos-sel (point)))
- (forward-line 1)
- (beginning-of-line))))) ;; FIXME!?
+ (with-current-buffer (newsticker--treeview-list-buffer)
+ (save-excursion
+ (let ((inhibit-read-only t))
+ (goto-char (point-min))
+ (while (not (eobp))
+ (let* ((pos (point-at-eol))
+ (item (get-text-property (point) :nt-item))
+ (age (newsticker--age item))
+ (selected (get-text-property (point) :nt-selected))
+ (face (cond ((eq age 'new)
+ 'newsticker-treeview-new-face)
+ ((eq age 'old)
+ 'newsticker-treeview-old-face)
+ ((eq age 'immortal)
+ 'newsticker-treeview-immortal-face)
+ ((eq age 'obsolete)
+ 'newsticker-treeview-obsolete-face)
+ (t
+ 'bold))))
+ (put-text-property (point) pos 'face face)
+ (if selected
+ (move-overlay newsticker--selection-overlay (point)
+ (1+ pos) ;include newline
+ (current-buffer)))
+ (if selected (setq pos-sel (point)))
+ (forward-line 1)
+ (beginning-of-line)))))) ;; FIXME!?
(when pos-sel
(if (window-live-p (newsticker--treeview-list-window))
(set-window-point (newsticker--treeview-list-window) pos-sel)))))
(defun newsticker--treeview-list-clear-highlight ()
"Clear the highlight in the treeview list buffer."
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
+ (with-current-buffer (newsticker--treeview-list-buffer)
(let ((inhibit-read-only t))
(put-text-property (point-min) (point-max) :nt-selected nil))
(newsticker--treeview-list-update-faces)))
"Update the highlight in the treeview list buffer."
(newsticker--treeview-list-clear-highlight)
(let (pos num-lines)
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
+ (with-current-buffer (newsticker--treeview-list-buffer)
(let ((inhibit-read-only t))
- (put-text-property (save-excursion (beginning-of-line) (point))
- (save-excursion (end-of-line) (point))
- :nt-selected t))
+ (put-text-property (point-at-bol) (point-at-eol) :nt-selected t))
(newsticker--treeview-list-update-faces))))
(defun newsticker--treeview-list-highlight-start ()
"Return position of selection in treeview list buffer."
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
- (goto-char (point-min))
- (next-single-property-change (point) :nt-selected)))
+ (with-current-buffer (newsticker--treeview-list-buffer)
+ (save-excursion
+ (goto-char (point-min))
+ (next-single-property-change (point) :nt-selected))))
(defun newsticker--treeview-list-update (clear-buffer)
"Update the faces and highlight in the treeview list buffer.
'face face
'keymap newsticker-treeview-list-sort-button-map)))
+(defun newsticker--treeview-list-select (item)
+ "Select ITEM in treeview's list buffer."
+ (newsticker--treeview-list-clear-highlight)
+ (let (pos num-lines)
+ (save-current-buffer
+ (set-buffer (newsticker--treeview-list-buffer))
+ (goto-char (point-min))
+ (catch 'found
+ (while t
+ (let ((it (get-text-property (point) :nt-item)))
+ (when (eq it item)
+ (newsticker--treeview-list-update-highlight)
+ (newsticker--treeview-list-update-faces)
+ (newsticker--treeview-item-show
+ item (get-text-property (point) :nt-feed))
+ (throw 'found t)))
+ (forward-line 1)
+ (when (eobp)
+ (goto-char (point-min))
+ (throw 'found nil)))))))
+
;; ======================================================================
;;; item window
;; ======================================================================
(defun newsticker--treeview-item-show-text (title description)
"Show text in treeview item buffer consisting of TITLE and DESCRIPTION."
- (save-excursion
- (set-buffer (newsticker--treeview-item-buffer))
+ (with-current-buffer (newsticker--treeview-item-buffer)
(when (fboundp 'w3m-process-stop)
(w3m-process-stop (current-buffer)))
(let ((inhibit-read-only t))
(insert "\n\n" description)
(when newsticker-justification
(fill-region (point-min) (point-max) newsticker-justification))
- (newsticker-treeview-mode)
+ (newsticker-treeview-item-mode)
(goto-char (point-min)))))
(defun newsticker--treeview-item-show (item feed-name-symbol)
"Show news ITEM coming from FEED-NAME-SYMBOL in treeview item buffer."
(setq newsticker--treeview-current-feed (symbol-name feed-name-symbol))
- (save-excursion
- (set-buffer (newsticker--treeview-item-buffer))
+ (with-current-buffer (newsticker--treeview-item-buffer)
(when (fboundp 'w3m-process-stop)
(w3m-process-stop (current-buffer)))
(let ((inhibit-read-only t)
(not is-rendered-HTML))
(fill-region marker1 marker2 newsticker-justification))
- (newsticker-treeview-mode)
+ (newsticker-treeview-item-mode)
(goto-char (point-min))
;; insert logo at top
(let* ((newsticker-enable-logo-manipulations nil)
(set-buffer (newsticker--treeview-item-buffer))
(let ((inhibit-read-only t))
(erase-buffer))
- (newsticker-treeview-mode)))
+ (newsticker-treeview-item-mode)))
;; ======================================================================
;;; Tree window
(let ((p (point))
(notify (widget-get w :notify)))
;; FIXME: This moves point!!!!
- (save-excursion
- (set-buffer (newsticker--treeview-tree-buffer))
+ (with-current-buffer (newsticker--treeview-tree-buffer)
(widget-value-set w (widget-value w)))
(goto-char p))))))
(newsticker--treeview-get-current-node)
:parent) :from)))
(when (or (integerp pos) (and (markerp pos) (marker-position pos)))
- (save-excursion
- (set-buffer (newsticker--treeview-tree-buffer))
+ (with-current-buffer (newsticker--treeview-tree-buffer)
(goto-char pos)
(move-overlay newsticker--tree-selection-overlay
- (save-excursion (beginning-of-line) (point))
- (save-excursion (end-of-line) (1+ (point)))
+ (point-at-bol) (1+ (point-at-eol))
(current-buffer)))
(if (window-live-p (newsticker--treeview-tree-window))
(set-window-point (newsticker--treeview-tree-window) pos)))))
(defun newsticker-treeview-browse-url ()
"Call `browse-url' for the link of the item at point."
(interactive)
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
+ (with-current-buffer (newsticker--treeview-list-buffer)
(let ((url (get-text-property (point) :nt-link)))
(when url
(browse-url url)
(get-buffer-create "*Newsticker Item*") t)
(unless newsticker--selection-overlay
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
+ (with-current-buffer (newsticker--treeview-list-buffer)
(setq newsticker--selection-overlay (make-overlay (point-min)
(point-max)))
(overlay-put newsticker--selection-overlay 'face
'newsticker-treeview-selection-face)))
(unless newsticker--tree-selection-overlay
- (save-excursion
- (set-buffer (newsticker--treeview-tree-buffer))
+ (with-current-buffer (newsticker--treeview-tree-buffer)
(setq newsticker--tree-selection-overlay (make-overlay (point-min)
(point-max)))
(overlay-put newsticker--tree-selection-overlay 'face
"Update all treeview buffers and windows.
Note: does not update the layout."
(interactive)
- (newsticker--group-manage-orphan-feeds)
- (newsticker--treeview-list-update t)
- (newsticker--treeview-item-update)
- (newsticker--treeview-tree-update-tags)
- (cond (newsticker--treeview-current-feed
- (newsticker--treeview-list-items newsticker--treeview-current-feed))
- (newsticker--treeview-current-vfeed
- (newsticker--treeview-list-items-with-age
- (intern newsticker--treeview-current-vfeed))))
- (newsticker--treeview-tree-update-highlight)
- (newsticker--treeview-list-update-highlight))
+ (let ((cur-item (newsticker--treeview-get-selected-item)))
+ (newsticker--group-manage-orphan-feeds)
+ (newsticker--treeview-list-update t)
+ (newsticker--treeview-item-update)
+ (newsticker--treeview-tree-update-tags)
+ (cond (newsticker--treeview-current-feed
+ (newsticker--treeview-list-items newsticker--treeview-current-feed))
+ (newsticker--treeview-current-vfeed
+ (newsticker--treeview-list-items-with-age
+ (intern newsticker--treeview-current-vfeed))))
+ (newsticker--treeview-tree-update-highlight)
+ (newsticker--treeview-list-update-highlight)
+ (let ((cur-feed (or newsticker--treeview-current-feed
+ newsticker--treeview-current-vfeed)))
+ (if (and cur-feed cur-item)
+ (newsticker--treeview-list-select cur-item)))))
(defun newsticker-treeview-quit ()
"Quit newsticker treeview."
(defun newsticker-treeview-save ()
"Save newsticker data including treeview settings."
(interactive)
- (save-excursion
- (let ((coding-system-for-write 'utf-8)
- (buf (find-file-noselect (concat newsticker-dir "/groups"))))
- (when buf
- (set-buffer buf)
+ (let ((coding-system-for-write 'utf-8)
+ (buf (find-file-noselect (concat newsticker-dir "/groups"))))
+ (when buf
+ (with-current-buffer buf
(setq buffer-undo-list t)
(erase-buffer)
(insert ";; -*- coding: utf-8 -*-\n")
(insert (prin1-to-string newsticker-groups))
- (save-buffer)))))
+ (save-buffer)
+ (kill-buffer)))))
(defun newsticker--treeview-load ()
"Load treeview settings."
(concat newsticker-dir "/groups")))
(buf (and (file-exists-p filename)
(find-file-noselect filename))))
+ (and (file-exists-p newsticker-groups-filename)
+ (y-or-n-p (format "Delete old newsticker groups file? "))
+ (delete-file newsticker-groups-filename))
(when buf
(set-buffer buf)
(goto-char (point-min))
(setq newsticker-groups (read buf))
(error
(message "Error while reading newsticker groups file!")
- (setq newsticker-groups nil))))))
+ (setq newsticker-groups nil)))
+ (kill-buffer buf))))
(defun newsticker-treeview-scroll-item ()
(interactive)
(newsticker--treeview-restore-layout)
(newsticker--treeview-list-update-highlight)
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
+ (with-current-buffer (newsticker--treeview-list-buffer)
(beginning-of-line)
(let ((item (get-text-property (point) :nt-item))
(feed (get-text-property (point) :nt-feed)))
(newsticker-treeview-show-item))
(defun newsticker-treeview-next-new-or-immortal-item (&optional
- current-item-counts)
+ current-item-counts
+ dont-wrap-trees)
"Move to next new or immortal item.
Will move to next feed until an item is found. Will not move if
optional argument CURRENT-ITEM-COUNTS is t and current item is
-new or immortal."
+new or immortal. Will not move from virtual to ordinary feed
+tree or vice versa if optional argument DONT-WRAP-TREES is non-nil."
(interactive)
(newsticker--treeview-restore-layout)
(newsticker--treeview-list-clear-highlight)
(newsticker-treeview-show-item)
(throw 'found t))
(setq move t))))
- (when (newsticker-treeview-next-feed t)
- (newsticker-treeview-next-new-or-immortal-item t))))
+ (let ((wrap-trees (not dont-wrap-trees)))
+ (when (or (newsticker-treeview-next-feed t)
+ (and wrap-trees (newsticker--treeview-first-feed)))
+ (newsticker-treeview-next-new-or-immortal-item t t)))))
(defun newsticker-treeview-prev-new-or-immortal-item ()
"Move to previous new or immortal item.
(defun newsticker--treeview-get-selected-item ()
"Return item that is currently selected in list buffer."
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
+ (with-current-buffer (newsticker--treeview-list-buffer)
(beginning-of-line)
(get-text-property (point) :nt-item)))
(interactive)
(let ((current-feed (or newsticker--treeview-current-feed
newsticker--treeview-current-vfeed)))
- (save-excursion
- (set-buffer (newsticker--treeview-list-buffer))
+ (with-current-buffer (newsticker--treeview-list-buffer)
(goto-char (point-min))
(while (not (eobp))
(let ((item (get-text-property (point) :nt-item)))
(defun newsticker--treeview-set-current-node (node)
"Make NODE the current node."
- (save-excursion
- (set-buffer (newsticker--treeview-tree-buffer))
+ (with-current-buffer (newsticker--treeview-tree-buffer)
(setq newsticker--treeview-current-node-id
(widget-get node :nt-id))
(setq newsticker--treeview-current-feed (widget-get node :nt-feed))
(node
(widget-apply-action node)))))
+(defun newsticker--treeview-first-feed ()
+ "Jump to the depth-first feed in the `newsticker-groups' tree."
+ (newsticker-treeview-jump
+ (car (reverse (newsticker--group-get-feeds newsticker-groups t)))))
+
(defun newsticker-treeview-next-feed (&optional stay-in-tree)
"Move to next feed.
Optional argument STAY-IN-TREE prevents moving from real feed
(newsticker--treeview-restore-layout)
(let ((cur (newsticker--treeview-get-current-node))
(new nil))
- (message "newsticker-treeview-next-feed from %s"
- (widget-get cur :tag))
- (if cur
- (progn
- (setq new
- (if cur
- (or (newsticker--treeview-get-next-sibling cur)
- (newsticker--treeview-get-next-uncle cur)
- (and (not stay-in-tree)
- (newsticker--treeview-get-other-tree)))
- (car (widget-get newsticker--treeview-feed-tree :children))))
- (if new
- (progn
- (newsticker--treeview-activate-node new)
- (newsticker--treeview-tree-update-highlight)
- (not (eq new cur)))
- nil))
+ (setq new
+ (if cur
+ (or (newsticker--treeview-get-next-sibling cur)
+ (newsticker--treeview-get-next-uncle cur)
+ (and (not stay-in-tree)
+ (newsticker--treeview-get-other-tree)))
+ (car (widget-get newsticker--treeview-feed-tree :children))))
+ (if new
+ (progn
+ (newsticker--treeview-activate-node new)
+ (newsticker--treeview-tree-update-highlight)
+ (not (eq new cur)))
nil)))
(defun newsticker-treeview-prev-feed (&optional stay-in-tree)
(newsticker--treeview-restore-layout)
(let ((cur (newsticker--treeview-get-current-node))
(new nil))
- (message "newsticker-treeview-prev-feed from %s"
- (widget-get cur :tag))
(if cur
(progn
(setq new
(not (eq new cur)))
nil))
nil)))
-
+
(defun newsticker-treeview-next-page ()
"Scroll item buffer."
(interactive)
(newsticker--treeview-unfold-node group-name))
(setq node (newsticker--treeview-get-node-of-feed feed-name)))
(when node
- (save-excursion
- (set-buffer (newsticker--treeview-tree-buffer))
+ (with-current-buffer (newsticker--treeview-tree-buffer)
(widget-put node :nt-selected t)
(widget-apply-action node)
(newsticker--treeview-set-current-node node)))))
(list (let ((completion-ignore-case t))
(completing-read
"Jump to feed: "
- (mapcar 'car (append newsticker-url-list
- newsticker-url-list-defaults))
- nil t))))
+ (append '("new" "obsolete" "immortal" "all")
+ (mapcar 'car (append newsticker-url-list
+ newsticker-url-list-defaults)))
+ nil t))))
(newsticker--treeview-unfold-node feed-name))
;; ======================================================================
(let ((subfeeds (newsticker--group-get-feeds n t)))
(when subfeeds
(setq result (append subfeeds result)))))))
- group)
+ (cdr group))
result))
(defun newsticker-group-add-group (name parent)
(define-key menu [newsticker-treeview-mark-list-items-old]
(list 'menu-item "Mark all items old"
'newsticker-treeview-mark-list-items-old))
+ (define-key menu [newsticker-treeview-mark-item-old]
+ (list 'menu-item "Mark current item old"
+ 'newsticker-treeview-mark-item-old))
+ (define-key menu [newsticker-treeview-toggle-item-immortal]
+ (list 'menu-item "Mark current item immortal (toggle)"
+ 'newsticker-treeview-toggle-item-immortal))
+ (define-key menu [newsticker-treeview-get-news]
+ (list 'menu-item "Get news for current feed"
+ 'newsticker-treeview-get-news))
menu)
- "Map for newsticker tree menu.")
+ "Map for newsticker list menu.")
+
+(defvar newsticker-treeview-item-menu
+ (let ((menu (make-sparse-keymap "Newsticker Item")))
+ (define-key menu [newsticker-treeview-mark-item-old]
+ (list 'menu-item "Mark current item old"
+ 'newsticker-treeview-mark-item-old))
+ (define-key menu [newsticker-treeview-toggle-item-immortal]
+ (list 'menu-item "Mark current item immortal (toggle)"
+ 'newsticker-treeview-toggle-item-immortal))
+ (define-key menu [newsticker-treeview-get-news]
+ (list 'menu-item "Get news for current feed"
+ 'newsticker-treeview-get-news))
+ menu)
+ "Map for newsticker item menu.")
(defvar newsticker-treeview-mode-map
(let ((map (make-sparse-keymap 'newsticker-treeview-mode-map)))
(define-key newsticker-treeview-list-mode-map [down-mouse-3]
newsticker-treeview-list-menu))
+(define-derived-mode newsticker-treeview-item-mode newsticker-treeview-mode
+ "Item"
+ (define-key newsticker-treeview-item-mode-map [down-mouse-3]
+ newsticker-treeview-item-menu))
+
(defun newsticker-treeview-tree-click (event)
"Handle click EVENT on a tag in the newsticker tree."
(interactive "e")
(when newsticker--treeview-current-feed
(newsticker-get-news newsticker--treeview-current-feed)))
-(provide 'newsticker-treeview)
+(provide 'newst-treeview)
-;; arch-tag: 5dbaff48-1f3e-4fc6-8ebd-e966fc90d2d4
;;; newst-treeview.el ends here