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[Emacs-diffs] Changes to newst-treeview.el
From: |
Ulf Jasper |
Subject: |
[Emacs-diffs] Changes to newst-treeview.el |
Date: |
Fri, 13 Jun 2008 17:05:35 +0000 |
CVSROOT: /sources/emacs
Module name: emacs
Changes by: Ulf Jasper <u11> 08/06/13 17:05:34
Index: newst-treeview.el
===================================================================
RCS file: newst-treeview.el
diff -N newst-treeview.el
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ newst-treeview.el 13 Jun 2008 17:05:34 -0000 1.1
@@ -0,0 +1,1988 @@
+;;; newst-treeview.el --- Treeview frontend for newsticker.
+
+;; Copyright (C) 2008 Free Software Foundation, Inc.
+
+;; Author: Ulf Jasper <address@hidden>
+;; Filename: newst-treeview.el
+;; URL: http://www.nongnu.org/newsticker
+;; Created: 2007
+;; Keywords: News, RSS, Atom
+;; Time-stamp: "13. Juni 2008, 17:43:54 (ulf)"
+
+;; ======================================================================
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
+
+;; ======================================================================
+;;; Commentary:
+
+;; See newsticker.el
+
+;; ======================================================================
+;;; History:
+;;
+
+
+;; ======================================================================
+;;; Code:
+(require 'newsticker-reader)
+(require 'widget)
+(require 'tree-widget)
+(require 'wid-edit)
+
+;; ======================================================================
+;;; Customization
+;; ======================================================================
+(defgroup newsticker-treeview nil
+ "Settings for the tree view reader."
+ :group 'newsticker-reader)
+
+(defface newsticker-treeview-face
+ '((((class color) (background dark))
+ (:family "helvetica" :foreground "misty rose" :bold nil))
+ (((class color) (background light))
+ (:family "helvetica" :foreground "black" :bold nil)))
+ "Face for newsticker tree."
+ :group 'newsticker-treeview)
+
+(defface newsticker-treeview-new-face
+ '((((class color) (background dark))
+ (:inherit newsticker-treeview-face :bold t))
+ (((class color) (background light))
+ (:inherit newsticker-treeview-face :bold t)))
+ "Face for newsticker tree."
+ :group 'newsticker-treeview)
+
+(defface newsticker-treeview-old-face
+ '((((class color) (background dark))
+ (:inherit newsticker-treeview-face))
+ (((class color) (background light))
+ (:inherit newsticker-treeview-face)))
+ "Face for newsticker tree."
+ :group 'newsticker-treeview)
+
+(defface newsticker-treeview-immortal-face
+ '((((class color) (background dark))
+ (:inherit newsticker-treeview-face :foreground "orange" :italic t))
+ (((class color) (background light))
+ (:inherit newsticker-treeview-face :foreground "blue" :italic t)))
+ "Face for newsticker tree."
+ :group 'newsticker-treeview)
+
+(defface newsticker-treeview-obsolete-face
+ '((((class color) (background dark))
+ (:inherit newsticker-treeview-face :strike-through t))
+ (((class color) (background light))
+ (:inherit newsticker-treeview-face :strike-through t)))
+ "Face for newsticker tree."
+ :group 'newsticker-treeview)
+
+(defface newsticker-treeview-selection-face
+ '((((class color) (background dark))
+ (:background "#bbbbff"))
+ (((class color) (background light))
+ (:background "#bbbbff")))
+ "Face for newsticker selection."
+ :group 'newsticker-treeview)
+
+(defcustom newsticker-treeview-own-frame
+ t
+ "Decides whether newsticker creates and uses its own frame."
+ :type 'boolean
+ :group 'newsticker-treeview)
+
+(defcustom newsticker-treeview-automatically-mark-displayed-items-as-old
+ t
+ "Decides whether to automatically mark displayed items as old.
+If t an item is marked as old as soon as it is displayed. This
+applies to newsticker only."
+ :type 'boolean
+ :group 'newsticker-treeview)
+
+(defvar newsticker-groups
+ '("Feeds")
+ "List of feed groups, used in the treeview frontend.
+Each element must be a list consisting of strings. The first
+element gives the title of the group, the following elements the
+names of feeds that belong to the group.
+FIXME")
+
+(defcustom newsticker-groups-filename
+ "~/.newsticker-groups"
+ "Name of the newsticker groups settings file."
+ :type 'string
+ :group 'newsticker-treeview)
+
+;; ======================================================================
+;;; internal variables
+;; ======================================================================
+(defvar newsticker--treeview-windows nil)
+(defvar newsticker--treeview-buffers nil)
+(defvar newsticker--treeview-current-feed nil)
+(defvar newsticker--treeview-current-vfeed nil)
+(defvar newsticker--treeview-list-show-feed nil)
+(defvar newsticker--saved-window-config nil)
+(defvar newsticker--window-config nil)
+;; (makunbound 'newsticker--selection-overlay) ;; FIXME
+(defvar newsticker--selection-overlay nil
+ "Highlight the selected tree node.")
+;;(makunbound 'newsticker--tree-selection-overlay) ;; FIXME
+(defvar newsticker--tree-selection-overlay nil
+ "Highlight the selected list item.")
+;;(makunbound 'newsticker--frame);; FIXME
+(defvar newsticker--frame nil "Special frame for newsticker windows.")
+(defvar newsticker--treeview-list-sort-order 'sort-by-time)
+(defvar newsticker--treeview-current-node-id nil)
+(defvar newsticker--treeview-current-tree nil)
+(defvar newsticker--treeview-feed-tree nil)
+(defvar newsticker--treeview-vfeed-tree nil)
+
+;; maps for the clickable portions
+(defvar newsticker--treeview-url-keymap
+ (let ((map (make-sparse-keymap 'newsticker--treeview-url-keymap)))
+ (define-key map [mouse-1] 'newsticker-treeview-mouse-browse-url)
+ (define-key map [mouse-2] 'newsticker-treeview-mouse-browse-url)
+ (define-key map "\n" 'newsticker-treeview-browse-url)
+ (define-key map "\C-m" 'newsticker-treeview-browse-url)
+ (define-key map [(control return)] 'newsticker-handle-url)
+ map)
+ "Key map for click-able headings in the newsticker treeview buffers.")
+
+
+;; ======================================================================
+;;; short cuts
+;; ======================================================================
+(defsubst newsticker--treeview-tree-buffer ()
+ "Return the tree buffer of the newsticker treeview."
+ (nth 0 newsticker--treeview-buffers))
+(defsubst newsticker--treeview-list-buffer ()
+ "Return the list buffer of the newsticker treeview."
+ (nth 1 newsticker--treeview-buffers))
+(defsubst newsticker--treeview-item-buffer ()
+ "Return the item buffer of the newsticker treeview."
+ (nth 2 newsticker--treeview-buffers))
+(defsubst newsticker--treeview-tree-window ()
+ "Return the tree window of the newsticker treeview."
+ (nth 0 newsticker--treeview-windows))
+(defsubst newsticker--treeview-list-window ()
+ "Return the list window of the newsticker treeview."
+ (nth 1 newsticker--treeview-windows))
+(defsubst newsticker--treeview-item-window ()
+ "Return the item window of the newsticker treeview."
+ (nth 2 newsticker--treeview-windows))
+
+;; ======================================================================
+;;; utility functions
+;; ======================================================================
+(defun newsticker--treeview-get-id (parent i)
+ "Create an id for a newsticker treeview node.
+PARENT is the node's parent, I is an integer."
+ ;;(message "newsticker--treeview-get-id %s"
+ ;; (format "%s-%d" (widget-get parent :nt-id) i))
+ (format "%s-%d" (widget-get parent :nt-id) i))
+
+(defun newsticker--treeview-ids-eq (id1 id2)
+ "Return non-nil if ids ID1 and ID2 are equal."
+ ;;(message "%s/%s" (or id1 -1) (or id2 -1))
+ (and id1 id2 (string= id1 id2)))
+
+(defun newsticker--treeview-nodes-eq (node1 node2)
+ "Compare treeview nodes NODE1 and NODE2 for equality.
+Nodes are equal if the have the same newsticker-id. Note that
+during re-tagging and collapsing/expanding nodes change, while
+their id stays constant."
+ (let ((id1 (widget-get node1 :nt-id))
+ (id2 (widget-get node2 :nt-id)))
+ ;;(message "%s/%s %s/%s" (widget-get node1 :tag) (widget-get node2 :tag)
+ ;; (or id1 -1) (or id2 -1))
+ (or (newsticker--treeview-ids-eq id1 id2)
+ (string= (widget-get node1 :tag) (widget-get node2 :tag)))))
+
+(defun newsticker--treeview-do-get-node-of-feed (feed-name startnode)
+ "Recursivly search node for feed FEED-NAME starting from STARTNODE."
+ ;;(message "%s/%s" feed-name (widget-get startnode :nt-feed))
+ (if (string= feed-name (or (widget-get startnode :nt-feed)
+ (widget-get startnode :nt-vfeed)))
+ (throw 'found startnode)
+ (let ((children (widget-get startnode :children)))
+ (dolist (w children)
+ (newsticker--treeview-do-get-node-of-feed feed-name w)))))
+
+(defun newsticker--treeview-get-node-of-feed (feed-name)
+ "Return node for feed FEED-NAME in newsticker treeview tree."
+ (catch 'found
+ (newsticker--treeview-do-get-node-of-feed feed-name
+ newsticker--treeview-feed-tree)
+ (newsticker--treeview-do-get-node-of-feed feed-name
+
newsticker--treeview-vfeed-tree)))
+
+(defun newsticker--treeview-do-get-node (id startnode)
+ "Recursivly search node with ID starting from STARTNODE."
+ (if (newsticker--treeview-ids-eq id (widget-get startnode :nt-id))
+ (throw 'found startnode)
+ (let ((children (widget-get startnode :children)))
+ (dolist (w children)
+ (newsticker--treeview-do-get-node id w)))))
+
+(defun newsticker--treeview-get-node (id)
+ "Return node with ID in newsticker treeview tree."
+ (catch 'found
+ (newsticker--treeview-do-get-node id newsticker--treeview-feed-tree)
+ (newsticker--treeview-do-get-node id newsticker--treeview-vfeed-tree)))
+
+(defun newsticker--treeview-get-current-node ()
+ "Return current node in newsticker treeview tree."
+ (newsticker--treeview-get-node newsticker--treeview-current-node-id))
+
+;; ======================================================================
+
+(declare-function w3m-toggle-inline-images "ext:w3m" (&optional force
no-cache))
+
+(defun newsticker--treeview-render-text (start end)
+ "Render text between markers START and END."
+ (if newsticker-html-renderer
+ (condition-case error-data
+ (save-excursion
+ (set-marker-insertion-type end t)
+ ;; check whether it is necessary to call html renderer
+ ;; (regexp inspired by htmlr.el)
+ (goto-char start)
+ (when (re-search-forward
+ "</?[A-Za-z1-6]*\\|&#?[A-Za-z0-9]+;" end t)
+ ;; (message "%s" (newsticker--title item))
+ (let ((w3m-fill-column (if newsticker-use-full-width
+ -1 fill-column))
+ (w3-maximum-line-length
+ (if newsticker-use-full-width nil fill-column)))
+ (save-excursion
+ (funcall newsticker-html-renderer start end)))
+ ;;(cond ((eq newsticker-html-renderer 'w3m-region)
+ ;; (add-text-properties start end (list 'keymap
+ ;; w3m-minor-mode-map)))
+ ;;((eq newsticker-html-renderer 'w3-region)
+ ;;(add-text-properties start end (list 'keymap w3-mode-map))))
+ (if (eq newsticker-html-renderer 'w3m-region)
+ (w3m-toggle-inline-images t))
+ t))
+ (error
+ (message "Error: HTML rendering failed: %s, %s"
+ (car error-data) (cdr error-data))
+ nil))
+ nil))
+
+;; ======================================================================
+;;; List window
+;; ======================================================================
+(defun newsticker--treeview-list-add-item (item feed &optional show-feed)
+ "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))
+ (let* ((inhibit-read-only t)
+ pos1 pos2)
+ (goto-char (point-max))
+ (setq pos1 (point-marker))
+ (insert " ")
+ (insert (propertize " " 'display '(space :align-to 2)))
+ (insert (if show-feed
+ (concat
+ (substring
+ (format "%-10s" (newsticker--real-feed-name
+ feed))
+ 0 10)
+ (propertize " " 'display '(space :align-to 12)))
+ ""))
+ (insert (format-time-string "%d.%m.%y, %H:%M"
+ (newsticker--time item)))
+ (insert (propertize " " 'display
+ (list 'space :align-to (if show-feed 28 18))))
+ (setq pos2 (point-marker))
+ (insert (newsticker--title item))
+ (insert "\n")
+ (newsticker--treeview-render-text pos2 (point-marker))
+ (goto-char pos2)
+ (while (search-forward "\n" nil t)
+ (replace-match " "))
+ (let ((map (make-sparse-keymap)))
+ (define-key map [mouse-1] 'newsticker-treeview-tree-click)
+ (define-key map "\n" 'newsticker-treeview-show-item)
+ (define-key map "\C-m" 'newsticker-treeview-show-item)
+ (add-text-properties pos1 (point-max)
+ (list :nt-item item
+ :nt-feed feed
+ :nt-link (newsticker--link item)
+ 'mouse-face 'highlight
+ 'keymap map
+ 'help-echo "Show item")))
+ (insert "\n"))))
+
+(defun newsticker--treeview-list-clear ()
+ "Clear the newsticker treeview list window."
+ (save-excursion
+ (set-buffer (newsticker--treeview-list-buffer))
+ (let ((inhibit-read-only t))
+ (erase-buffer)
+ (kill-all-local-variables)
+ (remove-overlays))))
+
+(defun newsticker--treeview-list-items-with-age-callback (widget
+ changed-widget
+ &rest ages)
+ "Fill newsticker treeview list window with items of certain age.
+This is a callback function for the treeview nodes.
+Argument WIDGET is the calling treeview widget.
+Argument CHANGED-WIDGET is the widget that actually has changed.
+Optional argument AGES is the list of ages that are to be shown."
+ (newsticker--treeview-list-clear)
+ (widget-put widget :nt-selected t)
+ (apply 'newsticker--treeview-list-items-with-age ages))
+
+(defun newsticker--treeview-list-items-with-age (&rest ages)
+ "Actually fill newsticker treeview list window with items of certain age.
+AGES is the list of ages that are to be shown."
+ (mapc (lambda (feed)
+ (let ((feed-name-symbol (intern (car feed))))
+ (mapc (lambda (item)
+ (when (memq (newsticker--age item) ages)
+ (newsticker--treeview-list-add-item
+ item feed-name-symbol t)))
+ (newsticker--treeview-list-sort-items
+ (cdr (newsticker--cache-get-feed feed-name-symbol))))))
+ (append newsticker-url-list-defaults newsticker-url-list))
+ (newsticker--treeview-list-update nil))
+
+(defun newsticker--treeview-list-new-items (widget changed-widget
+ &optional event)
+ "Fill newsticker treeview list window with new items.
+This is a callback function for the treeview nodes.
+Argument WIDGET FIXME.
+Argument CHANGED-WIDGET FIXME.
+Optional argument EVENT FIXME."
+ (newsticker--treeview-list-items-with-age-callback widget changed-widget
+ 'new)
+ (newsticker--treeview-item-show-text
+ "New items"
+ "This is a virtual feed containing all new items"))
+
+(defun newsticker--treeview-list-immortal-items (widget changed-widget
+ &optional event)
+ "Fill newsticker treeview list window with immortal items.
+This is a callback function for the treeview nodes.
+Argument WIDGET FIXME.
+Argument CHANGED-WIDGET FIXME.
+Optional argument EVENT FIXME."
+ (newsticker--treeview-list-items-with-age-callback widget changed-widget
+ 'immortal)
+ (newsticker--treeview-item-show-text
+ "Immortal items"
+ "This is a virtual feed containing all immortal items."))
+
+(defun newsticker--treeview-list-obsolete-items (widget changed-widget
+ &optional event)
+ "Fill newsticker treeview list window with obsolete items.
+This is a callback function for the treeview nodes.
+Argument WIDGET FIXME.
+Argument CHANGED-WIDGET FIXME.
+Optional argument EVENT FIXME."
+ (newsticker--treeview-list-items-with-age-callback widget changed-widget
+ 'obsolete)
+ (newsticker--treeview-item-show-text
+ "Obsolete items"
+ "This is a virtual feed containing all obsolete items."))
+
+(defun newsticker--treeview-list-all-items (widget changed-widget
+ &optional event)
+ "Fill newsticker treeview list window with all items.
+This is a callback function for the treeview nodes.
+Argument WIDGET FIXME.
+Argument CHANGED-WIDGET FIXME.
+Optional argument EVENT FIXME."
+ (newsticker--treeview-list-items-with-age-callback widget changed-widget
+ event 'new 'old
+ 'obsolete 'immortal)
+ (newsticker--treeview-item-show-text
+ "All items"
+ "This is a virtual feed containing all items."))
+
+(defun newsticker--treeview-list-items-v (vfeed-name)
+ "List items for virtual feed VFEED-NAME."
+ (when vfeed-name
+ (cond ((string-match "\\*new\\*" vfeed-name)
+ (newsticker--treeview-list-items-with-age 'new))
+ ((string-match "\\*immortal\\*" vfeed-name)
+ (newsticker--treeview-list-items-with-age 'immortal))
+ ((string-match "\\*old\\*" vfeed-name)
+ (newsticker--treeview-list-items-with-age 'old nil)))
+ (newsticker--treeview-list-update nil)
+ ))
+
+(defun newsticker--treeview-list-items (feed-name)
+ "List items for feed FEED-NAME."
+ (when feed-name
+ (if (newsticker--treeview-virtual-feed-p feed-name)
+ (newsticker--treeview-list-items-v feed-name)
+ (mapc (lambda (item)
+ (if (eq (newsticker--age item) 'feed)
+ (newsticker--treeview-item-show item (intern feed-name))
+ (newsticker--treeview-list-add-item item
+ (intern feed-name))))
+ (newsticker--treeview-list-sort-items
+ (cdr (newsticker--cache-get-feed (intern feed-name)))))
+ (newsticker--treeview-list-update nil))))
+
+(defun newsticker--treeview-list-feed-items (widget changed-widget
+ &optional event)
+ "Callback function for listing feed items.
+Argument WIDGET FIXME.
+Argument CHANGED-WIDGET FIXME.
+Optional argument EVENT FIXME."
+ (newsticker--treeview-list-clear)
+ (widget-put widget :nt-selected t)
+ (let ((feed-name (widget-get widget :nt-feed))
+ (vfeed-name (widget-get widget :nt-vfeed)))
+ (if feed-name
+ (newsticker--treeview-list-items feed-name)
+ (newsticker--treeview-list-items-v vfeed-name))))
+
+(defun newsticker--treeview-list-compare-item-by-age (item1 item2)
+ "Compare two news items ITEM1 and ITEM2 wrt age."
+ (catch 'result
+ (let ((age1 (newsticker--age item1))
+ (age2 (newsticker--age item2)))
+ (cond ((eq age1 'new)
+ t)
+ ((eq age1 'immortal)
+ (cond ((eq age2 'new)
+ t)
+ ((eq age2 'immortal)
+ t)
+ (t
+ nil)))
+ ((eq age1 'old)
+ (cond ((eq age2 'new)
+ nil)
+ ((eq age2 'immortal)
+ nil)
+ ((eq age2 'old)
+ nil)
+ (t
+ t)))
+ (t
+ nil)))))
+
+(defun newsticker--treeview-list-compare-item-by-age-reverse (item1 item2)
+ "Compare two news items ITEM1 and ITEM2 wrt age in reverse order."
+ (newsticker--treeview-list-compare-item-by-age item2 item1))
+
+(defun newsticker--treeview-list-compare-item-by-time (item1 item2)
+ "Compare two news items ITEM1 and ITEM2 wrt time values."
+ (newsticker--cache-item-compare-by-time item1 item2))
+
+(defun newsticker--treeview-list-compare-item-by-time-reverse (item1 item2)
+ "Compare two news items ITEM1 and ITEM2 wrt time values in reverse order."
+ (newsticker--cache-item-compare-by-time item2 item1))
+
+(defun newsticker--treeview-list-compare-item-by-title (item1 item2)
+ "Compare two news items ITEM1 and ITEM2 wrt title."
+ (newsticker--cache-item-compare-by-title item1 item2))
+
+(defun newsticker--treeview-list-compare-item-by-title-reverse (item1 item2)
+ "Compare two news items ITEM1 and ITEM2 wrt title in reverse order."
+ (newsticker--cache-item-compare-by-title item2 item1))
+
+(defun newsticker--treeview-list-sort-items (items)
+ "Return sorted copy of list ITEMS.
+The sort function is chosen according to the value of
+`newsticker--treeview-list-sort-order'."
+ (let ((sort-fun
+ (cond ((eq newsticker--treeview-list-sort-order 'sort-by-age)
+ 'newsticker--treeview-list-compare-item-by-age)
+ ((eq newsticker--treeview-list-sort-order
+ 'sort-by-age-reverse)
+ 'newsticker--treeview-list-compare-item-by-age-reverse)
+ ((eq newsticker--treeview-list-sort-order 'sort-by-time)
+ 'newsticker--treeview-list-compare-item-by-time)
+ ((eq newsticker--treeview-list-sort-order
+ 'sort-by-time-reverse)
+ 'newsticker--treeview-list-compare-item-by-time-reverse)
+ ((eq newsticker--treeview-list-sort-order 'sort-by-title)
+ 'newsticker--treeview-list-compare-item-by-title)
+ ((eq newsticker--treeview-list-sort-order
+ 'sort-by-title-reverse)
+ 'newsticker--treeview-list-compare-item-by-title-reverse)
+ (t
+ 'newsticker--treeview-list-compare-item-by-title))))
+ (sort (copy-sequence items) sort-fun)))
+
+(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!?
+ (when pos-sel
+ (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))
+ (let ((inhibit-read-only t))
+ (put-text-property (point-min) (point-max) :nt-selected nil))
+ (newsticker--treeview-list-update-faces)))
+
+(defun newsticker--treeview-list-update-highlight ()
+ "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))
+ (let ((inhibit-read-only t))
+ (put-text-property (save-excursion (beginning-of-line) (point))
+ (save-excursion (end-of-line) (point))
+ :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)))
+
+(defun newsticker--treeview-list-update (clear-buffer)
+ "Update the faces and highlight in the treeview list buffer.
+If CLEAR-BUFFER is non-nil the list buffer is completely erased."
+ (save-excursion
+ (set-window-buffer (newsticker--treeview-list-window)
+ (newsticker--treeview-list-buffer))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-list-window) t))
+ (set-buffer (newsticker--treeview-list-buffer))
+ (if clear-buffer
+ (let ((inhibit-read-only t))
+ (erase-buffer)))
+ (newsticker-treeview-list-mode)
+ (newsticker--treeview-list-update-faces)
+ (goto-char (point-min))))
+
+;;(makunbound 'newsticker-treeview-list-sort-button-map);; FIXME
+(defvar newsticker-treeview-list-sort-button-map
+ (let ((map (make-sparse-keymap)))
+ (define-key map [header-line mouse-1]
+ 'newsticker--treeview-list-sort-by-column)
+ (define-key map [header-line mouse-2]
+ 'newsticker--treeview-list-sort-by-column)
+ map)
+ "Local keymap for newsticker treeview list window sort buttons.")
+
+(defun newsticker--treeview-list-sort-by-column (&optional e)
+ "Sort the newsticker list window buffer by the column clicked on.
+Optional argument E FIXME."
+ (interactive (list last-input-event))
+ (if e (mouse-select-window e))
+ (let* ((pos (event-start e))
+ (obj (posn-object pos))
+ (sort-order (if obj
+ (get-text-property (cdr obj) 'sort-order (car obj))
+ (get-text-property (posn-point pos) 'sort-order))))
+ (setq newsticker--treeview-list-sort-order
+ (cond ((eq sort-order 'sort-by-age)
+ (if (eq newsticker--treeview-list-sort-order 'sort-by-age)
+ 'sort-by-age-reverse
+ 'sort-by-age))
+ ((eq sort-order 'sort-by-time)
+ (if (eq newsticker--treeview-list-sort-order 'sort-by-time)
+ 'sort-by-time-reverse
+ 'sort-by-time))
+ ((eq sort-order 'sort-by-title)
+ (if (eq newsticker--treeview-list-sort-order 'sort-by-title)
+ 'sort-by-title-reverse
+ 'sort-by-title))))
+ (newsticker-treeview-update)))
+
+(defun newsticker-treeview-list-make-sort-button (name sort-order)
+ "Create propertized string for headerline button.
+NAME is the button text, SORT-ORDER is the associated sort order
+for the button."
+ (let ((face (if (string-match (symbol-name sort-order)
+ (symbol-name
+ newsticker--treeview-list-sort-order))
+ 'bold
+ 'header-line)))
+ (propertize name
+ 'sort-order sort-order
+ 'help-echo (concat "Sort by " name)
+ 'mouse-face 'highlight
+ 'face face
+ 'keymap newsticker-treeview-list-sort-button-map)))
+
+;; ======================================================================
+;;; 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))
+ (when (fboundp 'w3m-process-stop)
+ (w3m-process-stop (current-buffer)))
+ (let ((inhibit-read-only t))
+ (erase-buffer)
+ (kill-all-local-variables)
+ (remove-overlays)
+ (insert title)
+ (put-text-property (point-min) (point) 'face 'newsticker-feed-face)
+ (insert "\n\n" description)
+ (when newsticker-justification
+ (fill-region (point-min) (point-max) newsticker-justification))
+ (newsticker-treeview-mode)
+ (goto-char (point-min)))))
+
+(defun newsticker--treeview-item-show (item feed)
+ "Show news ITEM coming from FEED in treeview item buffer."
+ (save-excursion
+ (set-buffer (newsticker--treeview-item-buffer))
+ (when (fboundp 'w3m-process-stop)
+ (w3m-process-stop (current-buffer)))
+ (let ((inhibit-read-only t)
+ (is-rendered-HTML nil)
+ pos
+ (marker1 (make-marker))
+ (marker2 (make-marker)))
+ (erase-buffer)
+ (kill-all-local-variables)
+ (remove-overlays)
+
+ (when (and item feed)
+ (let ((wwidth (1- (window-width (newsticker--treeview-item-window)))))
+ (if newsticker-use-full-width
+ (set (make-local-variable 'fill-column) wwidth))
+ (set (make-local-variable 'fill-column) (min fill-column
+ wwidth)))
+ (let ((desc (newsticker--desc item)))
+ (insert "\n" (or desc "[No Description]")))
+ (set-marker marker1 (1+ (point-min)))
+ (set-marker marker2 (point-max))
+ (setq is-rendered-HTML (newsticker--treeview-render-text marker1
+ marker2))
+ (when (and newsticker-justification
+ (not is-rendered-HTML))
+ (fill-region marker1 marker2 newsticker-justification))
+
+ (newsticker-treeview-mode)
+ (goto-char (point-min))
+ ;; insert logo at top
+ (let* ((newsticker-enable-logo-manipulations nil)
+ (img (newsticker--image-read feed nil)))
+ (if (and (display-images-p) img)
+ (newsticker--insert-image img (car item))
+ (insert (newsticker--real-feed-name feed))))
+ (add-text-properties (point-min) (point)
+ (list 'face 'newsticker-feed-face
+ 'mouse-face 'highlight
+ 'help-echo "Visit in web browser."
+ :nt-link (newsticker--link item)
+ 'keymap newsticker--treeview-url-keymap))
+ (setq pos (point))
+
+ (insert "\n\n")
+ ;; insert title
+ (setq pos (point))
+ (insert (newsticker--title item) "\n")
+ (set-marker marker1 pos)
+ (set-marker marker2 (point))
+ (newsticker--treeview-render-text marker1 marker2)
+ (put-text-property pos (point) 'face 'newsticker-treeview-new-face)
+ (goto-char marker2)
+ (delete-char -1)
+ (insert "\n")
+ (put-text-property marker2 (point) 'face 'newsticker-treeview-face)
+ (set-marker marker2 (point))
+ (when newsticker-justification
+ (fill-region marker1 marker2 newsticker-justification))
+ (goto-char marker2)
+ (add-text-properties marker1 (1- (point))
+ (list 'mouse-face 'highlight
+ 'help-echo "Visit in web browser."
+ :nt-link (newsticker--link item)
+ 'keymap newsticker--treeview-url-keymap))
+ (insert (format-time-string newsticker-date-format
+ (newsticker--time item)))
+ (insert "\n")
+ (setq pos (point))
+ (insert "\n")
+ ;; insert enclosures and rest at bottom
+ (goto-char (point-max))
+ (insert "\n\n")
+ (setq pos (point))
+ (newsticker--insert-enclosure item newsticker--treeview-url-keymap)
+ (put-text-property pos (point) 'face 'newsticker-enclosure-face)
+ (setq pos (point))
+ (insert "\n")
+ (newsticker--print-extra-elements item newsticker--treeview-url-keymap)
+ (put-text-property pos (point) 'face 'newsticker-extra-face)
+ (goto-char (point-min)))))
+ (if (and newsticker-treeview-automatically-mark-displayed-items-as-old
+ item
+ (memq (newsticker--age item) '(new obsolete)))
+ (let ((newsticker-treeview-automatically-mark-displayed-items-as-old
nil))
+ (newsticker-treeview-mark-item-old t)
+ (newsticker--treeview-list-update-faces)))
+ (set-window-point (newsticker--treeview-item-window) 1))
+
+(defun newsticker--treeview-item-update ()
+ "Update the treeview item buffer and window."
+ (save-excursion
+ (set-window-buffer (newsticker--treeview-item-window)
+ (newsticker--treeview-item-buffer))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-item-window) t))
+ (set-buffer (newsticker--treeview-item-buffer))
+ (let ((inhibit-read-only t))
+ (erase-buffer))
+ (newsticker-treeview-mode)))
+
+;; ======================================================================
+;;; Tree window
+;; ======================================================================
+(defun newsticker--treeview-tree-expand (tree)
+ "Expand TREE.
+Callback function for tree widget that adds nodes for feeds and subgroups."
+ (newsticker--group-manage-orphan-feeds)
+ (tree-widget-set-theme "folder")
+ (let ((group (widget-get tree :nt-group))
+ (i 0)
+ (nt-id ""))
+ (mapcar (lambda (g)
+ (setq nt-id (newsticker--treeview-get-id tree i))
+ (setq i (1+ i))
+ (if (listp g)
+ (let* ((g-name (car g)))
+ `(tree-widget
+ :tag ,(newsticker--treeview-tree-get-tag g-name nil
nt-id)
+ :expander newsticker--treeview-tree-expand
+ :expander-p (lambda (&rest ignore) t)
+ :nt-group ,(cdr g)
+ :nt-feed ,g-name
+ :nt-id ,nt-id
+ :keep (:nt-feed :num-new :nt-id :open);; :nt-group
+ :open nil))
+ (let ((tag (newsticker--treeview-tree-get-tag g nil nt-id)))
+ `(item :tag ,tag
+ :leaf-icon newsticker--tree-widget-leaf-icon
+ :nt-feed ,g
+ :action newsticker--treeview-list-feed-items
+ :nt-id ,nt-id
+ :keep (:nt-id)
+ :open t))))
+ group)))
+
+(defun newsticker--treeview-tree-expand-status (tree &optional changed-widget
+ event)
+ "Expand the vfeed TREE.
+Optional arguments CHANGED-WIDGET and EVENT are ignored."
+ (tree-widget-set-theme "folder")
+ (list `(item :tag ,(newsticker--treeview-tree-get-tag nil "new")
+ :nt-vfeed "new"
+ :action newsticker--treeview-list-new-items
+ :nt-id ,(newsticker--treeview-get-id tree 0)
+ :keep (:nt-id))
+ `(item :tag ,(newsticker--treeview-tree-get-tag nil "immortal")
+ :nt-vfeed "immortal"
+ :action newsticker--treeview-list-immortal-items
+ :nt-id ,(newsticker--treeview-get-id tree 1)
+ :keep (:nt-id))
+ `(item :tag ,(newsticker--treeview-tree-get-tag nil "obsolete")
+ :nt-vfeed "obsolete"
+ :action newsticker--treeview-list-obsolete-items
+ :nt-id ,(newsticker--treeview-get-id tree 2)
+ :keep (:nt-id))
+ `(item :tag ,(newsticker--treeview-tree-get-tag nil "all")
+ :nt-vfeed "all"
+ :action newsticker--treeview-list-all-items
+ :nt-id ,(newsticker--treeview-get-id tree 3)
+ :keep (:nt-id))))
+
+(defun newsticker--treeview-virtual-feed-p (feed-name)
+ "Return non-nil if FEED-NAME is a virtual feed."
+ (string-match "\\*.*\\*" feed-name))
+
+(define-widget 'newsticker--tree-widget-leaf-icon 'tree-widget-icon
+ "Icon for a tree-widget leaf node."
+ :tag "O"
+ :glyph-name "leaf"
+ :button-face 'default)
+
+(defun newsticker--treeview-tree-update ()
+ "Update treeview tree buffer and window."
+ (save-excursion
+ (set-window-buffer (newsticker--treeview-tree-window)
+ (newsticker--treeview-tree-buffer))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-tree-window) t))
+ (set-buffer (newsticker--treeview-tree-buffer))
+ (kill-all-local-variables)
+ (let ((inhibit-read-only t))
+ (erase-buffer)
+ (tree-widget-set-theme "folder")
+ (setq newsticker--treeview-feed-tree
+ (widget-create 'tree-widget
+ :tag (newsticker--treeview-propertize-tag
+ "Feeds" 0 "feeds")
+ :expander 'newsticker--treeview-tree-expand
+ :expander-p (lambda (&rest ignore) t)
+ :leaf-icon 'newsticker--tree-widget-leaf-icon
+ :nt-group (cdr newsticker-groups)
+ :nt-id "feeds"
+ :keep '(:nt-id)
+ :open t))
+ (setq newsticker--treeview-vfeed-tree
+ (widget-create 'tree-widget
+ :tag (newsticker--treeview-propertize-tag
+ "Virtual Feeds" 0 "vfeeds")
+ :expander 'newsticker--treeview-tree-expand-status
+ :expander-p (lambda (&rest ignore) t)
+ :leaf-icon 'newsticker--tree-widget-leaf-icon
+ :nt-id "vfeeds"
+ :keep '(:nt-id)
+ :open t))
+ (use-local-map widget-keymap)
+ (widget-setup))
+ (newsticker-treeview-mode)))
+
+(defun newsticker--treeview-propertize-tag (tag &optional num-new nt-id feed
+ vfeed)
+ "Return propertized copy of string TAG.
+Optional argument NUM-NEW is used for choosing face, other
+arguments NT-ID, FEED, and VFEED are added as properties."
+ ;;(message "newsticker--treeview-propertize-tag '%s' %s" feed nt-id)
+ (let ((face 'newsticker-treeview-face)
+ (map (make-sparse-keymap)))
+ (if (and num-new (> num-new 0))
+ (setq face 'newsticker-treeview-new-face))
+ (define-key map [mouse-1] 'newsticker-treeview-tree-click)
+ (define-key map "\n" 'newsticker-treeview-tree-do-click)
+ (define-key map "\C-m" 'newsticker-treeview-tree-do-click)
+ (propertize tag 'face face 'keymap map
+ :nt-id nt-id
+ :nt-feed feed
+ :nt-vfeed vfeed
+ 'help-echo "Clickme!"
+ 'mouse-face 'highlight)))
+
+(defun newsticker--treeview-tree-get-tag (feed-name vfeed-name
+ &optional nt-id)
+ "Return a tag string for either FEED-NAME or, if it is nil, for VFEED-NAME.
+Optional argument NT-ID is added to the tag's properties."
+ (let (tag (num-new 0))
+ (cond (vfeed-name
+ (cond ((string= vfeed-name "new")
+ (setq num-new (newsticker--stat-num-items-total 'new))
+ (setq tag (format "New items (%d)" num-new)))
+ ((string= vfeed-name "immortal")
+ (setq num-new (newsticker--stat-num-items-total 'immortal))
+ (setq tag (format "Immortal items (%d)" num-new)))
+ ((string= vfeed-name "obsolete")
+ (setq num-new (newsticker--stat-num-items-total 'obsolete))
+ (setq tag (format "Obsolete items (%d)" num-new)))
+ ((string= vfeed-name "all")
+ (setq num-new (newsticker--stat-num-items-total))
+ (setq tag (format "All items (%d)" num-new)))))
+ (feed-name
+ (setq num-new (newsticker--stat-num-items-for-group
+ (intern feed-name) 'new 'immortal))
+ (setq tag
+ (format "%s (%d)"
+ (newsticker--real-feed-name (intern feed-name))
+ num-new))))
+ (if tag
+ (newsticker--treeview-propertize-tag tag num-new
+ nt-id
+ feed-name vfeed-name))))
+
+(defun newsticker--stat-num-items-for-group (feed-name-symbol &rest ages)
+ "Count number of items in feed FEED-NAME-SYMBOL that have an age matching
AGES."
+ ;;(message "newsticker--stat-num-items-for-group %s %s" feed-name-symbol
ages)
+ (let ((result (apply 'newsticker--stat-num-items feed-name-symbol ages)))
+ (mapc (lambda (f-n)
+ (setq result (+ result
+ (apply 'newsticker--stat-num-items (intern f-n)
+ ages))))
+ (newsticker--group-get-feeds
+ (newsticker--group-get-group (symbol-name feed-name-symbol)) t))
+ result))
+
+(defun newsticker--treeview-count-node-items (feed &optional isvirtual)
+ "Count number of relevant items for a treeview node.
+FEED gives the name of the feed or group. If ISVIRTUAL is non-nil
+the feed is a virtual feed."
+ (let* ((num-new 0))
+ (if feed
+ (if isvirtual
+ (cond ((string= feed "new")
+ (setq num-new (newsticker--stat-num-items-total 'new)))
+ ((string= feed "immortal")
+ (setq num-new (newsticker--stat-num-items-total 'immortal)))
+ ((string= feed "obsolete")
+ (setq num-new (newsticker--stat-num-items-total 'obsolete)))
+ ((string= feed "all")
+ (setq num-new (newsticker--stat-num-items-total))))
+ (setq num-new (newsticker--stat-num-items-for-group
+ (intern feed) 'new 'immortal))))
+ num-new))
+
+(defun newsticker--treeview-tree-update-tag (w &optional recursive
+ &rest ignore)
+ "Update tag for tree widget W.
+If RECURSIVE is non-nil recursively update parent widgets as
+well. Argument IGNORE is ignored. Note that this function, if
+called recursively, makes w invalid. You should keep w's nt-id in
+that case."
+ ;;(message "newsticker--treeview-tree-update-tag %s, %s" (widget-get w :tag)
+ ;; (widget-type w))
+ (let* ((parent (widget-get w :parent))
+ (feed (or (widget-get w :nt-feed) (widget-get parent :nt-feed)))
+ (vfeed (or (widget-get w :nt-vfeed) (widget-get parent :nt-vfeed)))
+ (nt-id (or (widget-get w :nt-id) (widget-get parent :nt-id)))
+ (num-new (newsticker--treeview-count-node-items (or feed vfeed)
+ vfeed))
+ (tag (newsticker--treeview-tree-get-tag feed vfeed nt-id))
+ (n (widget-get w :node)))
+ (if parent
+ (if recursive
+ (newsticker--treeview-tree-update-tag parent)))
+ (when tag
+ (when n
+ (widget-put n :tag tag))
+ (widget-put w :num-new num-new)
+ (widget-put w :tag tag)
+ (when (marker-position (widget-get w :from))
+ (let ((p (point))
+ (notify (widget-get w :notify)))
+ ;; FIXME: This moves point!!!!
+ (save-excursion
+ (set-buffer (newsticker--treeview-tree-buffer))
+ (widget-value-set w (widget-value w)))
+ (goto-char p))))))
+
+(defun newsticker--treeview-tree-do-update-tags (widget)
+ "Actually recursively update tags for WIDGET."
+ (save-excursion
+ (let ((children (widget-get widget :children)))
+ (dolist (w children)
+ (newsticker--treeview-tree-do-update-tags w))
+ (newsticker--treeview-tree-update-tag widget))))
+
+(defun newsticker--treeview-tree-update-tags (&rest ignore)
+ "Update all tags of all trees.
+Arguments IGNORE are ignored."
+ (save-current-buffer
+ (set-buffer (newsticker--treeview-tree-buffer))
+ (let ((inhibit-read-only t))
+ (newsticker--treeview-tree-do-update-tags
+ newsticker--treeview-feed-tree)
+ (newsticker--treeview-tree-do-update-tags
+ newsticker--treeview-vfeed-tree))
+ (tree-widget-set-theme "folder")))
+
+(defun newsticker--treeview-tree-update-highlight ()
+ "Update highlight in tree buffer."
+ (let ((pos (widget-get (newsticker--treeview-get-current-node) :from)))
+ (unless (or (integerp pos) (and (markerp pos) (marker-position pos)))
+ (setq pos (widget-get (widget-get
+ (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))
+ (goto-char pos)
+ (move-overlay newsticker--tree-selection-overlay
+ (save-excursion (beginning-of-line) (point))
+ (save-excursion (end-of-line) (1+ (point)))
+ (current-buffer)))
+ (set-window-point (newsticker--treeview-tree-window) pos))))
+
+;; ======================================================================
+;;; Toolbar
+;; ======================================================================
+;;(makunbound 'newsticker-treeview-tool-bar-map)
+(defvar newsticker-treeview-tool-bar-map
+ (if (featurep 'xemacs)
+ nil
+ (if (boundp 'tool-bar-map)
+ (let ((tool-bar-map (make-sparse-keymap)))
+ (define-key tool-bar-map [newsticker-sep-1]
+ (list 'menu-item "--double-line"))
+ (define-key tool-bar-map [newsticker-browse-url]
+ (list 'menu-item "newsticker-browse-url"
+ 'newsticker-browse-url
+ :visible t
+ :help "Browse URL for item at point"
+ :image newsticker--browse-image))
+ (define-key tool-bar-map [newsticker-buffer-force-update]
+ (list 'menu-item "newsticker-treeview-update"
+ 'newsticker-treeview-update
+ :visible t
+ :help "Update newsticker buffer"
+ :image newsticker--update-image
+ :enable t))
+ (define-key tool-bar-map [newsticker-get-all-news]
+ (list 'menu-item "newsticker-get-all-news" 'newsticker-get-all-news
+ :visible t
+ :help "Get news for all feeds"
+ :image newsticker--get-all-image))
+ (define-key tool-bar-map [newsticker-mark-item-at-point-as-read]
+ (list 'menu-item "newsticker-treeview-mark-item-old"
+ 'newsticker-treeview-mark-item-old
+ :visible t
+ :image newsticker--mark-read-image
+ :help "Mark current item as read"
+ ;;:enable '(newsticker-item-not-old-p) FIXME
+ ))
+ (define-key tool-bar-map [newsticker-mark-item-at-point-as-immortal]
+ (list 'menu-item "newsticker-treeview-toggle-item-immortal"
+ 'newsticker-treeview-toggle-item-immortal
+ :visible t
+ :image newsticker--mark-immortal-image
+ :help "Toggle current item as immortal"
+ :enable t
+ ;;'(newsticker-item-not-immortal-p) FIXME
+ ))
+ (define-key tool-bar-map [newsticker-next-feed]
+ (list 'menu-item "newsticker-treeview-next-feed"
+ 'newsticker-treeview-next-feed
+ :visible t
+ :help "Go to next feed"
+ :image newsticker--next-feed-image
+ :enable t
+ ;;'(newsticker-next-feed-available-p) FIXME
+ ))
+ (define-key tool-bar-map [newsticker-treeview-next-item]
+ (list 'menu-item "newsticker-treeview-next-item"
+ 'newsticker-treeview-next-item
+ :visible t
+ :help "Go to next item"
+ :image newsticker--next-item-image
+ :enable t
+ ;;'(newsticker-next-item-available-p) FIXME
+ ))
+ (define-key tool-bar-map [newsticker-treeview-prev-item]
+ (list 'menu-item "newsticker-treeview-prev-item"
+ 'newsticker-treeview-prev-item
+ :visible t
+ :help "Go to previous item"
+ :image newsticker--previous-item-image
+ :enable t
+ ;;'(newsticker-previous-item-available-p) FIXME
+ ))
+ (define-key tool-bar-map [newsticker-treeview-prev-feed]
+ (list 'menu-item "newsticker-treeview-prev-feed"
+ 'newsticker-treeview-prev-feed
+ :visible t
+ :help "Go to previous feed"
+ :image newsticker--previous-feed-image
+ :enable t
+ ;;'(newsticker-previous-feed-available-p) FIXME
+ ))
+ ;; standard icons / actions
+ (tool-bar-add-item "close"
+ 'newsticker-treeview-quit
+ 'newsticker-treeview-quit
+ :help "Close newsticker")
+ (tool-bar-add-item "preferences"
+ 'newsticker-customize
+ 'newsticker-customize
+ :help "Customize newsticker")
+ tool-bar-map))))
+
+;; ======================================================================
+;;; actions
+;; ======================================================================
+
+(defun newsticker-treeview-mouse-browse-url (event)
+ "Call `browse-url' for the link of the item at which the EVENT occurred."
+ (interactive "e")
+ (save-excursion
+ (switch-to-buffer (window-buffer (posn-window (event-end event))))
+ (let ((url (get-text-property (posn-point (event-end event))
+ :nt-link)))
+ (when url
+ (browse-url url)
+ (if newsticker-automatically-mark-visited-items-as-old
+ (newsticker-treeview-mark-item-old))))))
+
+(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))
+ (let ((url (get-text-property (point) :nt-link)))
+ (when url
+ (browse-url url)
+ (if newsticker-automatically-mark-visited-items-as-old
+ (newsticker-treeview-mark-item-old))))))
+
+(defun newsticker--treeview-buffer-init ()
+ "Initialize all treeview buffers."
+ (setq newsticker--treeview-buffers nil)
+ (add-to-list 'newsticker--treeview-buffers
+ (get-buffer-create "*Newsticker Tree*") t)
+ (add-to-list 'newsticker--treeview-buffers
+ (get-buffer-create "*Newsticker List*") t)
+ (add-to-list 'newsticker--treeview-buffers
+ (get-buffer-create "*Newsticker Item*") t)
+
+ (unless newsticker--selection-overlay
+ (save-excursion
+ (set-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))
+ (setq newsticker--tree-selection-overlay (make-overlay (point-min)
+ (point-max)))
+ (overlay-put newsticker--tree-selection-overlay 'face
+ 'newsticker-treeview-selection-face)))
+
+ (newsticker--treeview-tree-update)
+ (newsticker--treeview-list-update t)
+ (newsticker--treeview-item-update))
+
+(defun newsticker-treeview-update ()
+ "Update all treeview buffers and windows."
+ (interactive)
+ (newsticker--cache-update)
+ (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))
+
+(defun newsticker-treeview-quit ()
+ "Quit newsticker treeview."
+ (interactive)
+ (newsticker-treeview-save)
+ (setq newsticker--sentinel-callback nil)
+ (setq newsticker--window-config (current-window-configuration))
+ (bury-buffer "*Newsticker Tree*")
+ (bury-buffer "*Newsticker List*")
+ (bury-buffer "*Newsticker Item*")
+ (set-window-configuration newsticker--saved-window-config)
+ (when newsticker--frame
+ (if (frame-live-p newsticker--frame)
+ (delete-frame newsticker--frame))
+ (setq newsticker--frame nil)))
+
+(defun newsticker-treeview-save ()
+ "Save newsticker data including treeview settings."
+ (interactive)
+ (newsticker--cache-save)
+ (save-excursion
+ (let ((coding-system-for-write 'utf-8)
+ (buf (find-file-noselect newsticker-groups-filename)))
+ (when buf
+ (set-buffer buf)
+ (setq buffer-undo-list t)
+ (erase-buffer)
+ (insert ";; -*- coding: utf-8 -*-\n")
+ (insert (prin1-to-string newsticker-groups))
+ (save-buffer)))))
+
+(defun newsticker--treeview-load ()
+ "Load treeview settings."
+ (let* ((coding-system-for-read 'utf-8)
+ (buf (and (file-exists-p newsticker-groups-filename)
+ (find-file-noselect newsticker-groups-filename))))
+ (when buf
+ (set-buffer buf)
+ (goto-char (point-min))
+ (condition-case nil
+ (setq newsticker-groups (read buf))
+ (error
+ (message "Error while reading newsticker groups file!")
+ (setq newsticker-groups nil))))))
+
+
+(defun newsticker-treeview-scroll-item ()
+ "Scroll current item."
+ (interactive)
+ (save-selected-window
+ (select-window (newsticker--treeview-item-window) t)
+ (scroll-up 1)))
+
+(defun newsticker-treeview-show-item ()
+ "Show current item."
+ (interactive)
+ (newsticker--treeview-list-update-highlight)
+ (save-excursion
+ (set-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-item-show item feed)))
+ (newsticker--treeview-tree-update-tag
+ (newsticker--treeview-get-current-node) t)
+ (newsticker--treeview-tree-update-highlight))
+
+(defun newsticker-treeview-next-item ()
+ "Move to next item."
+ (interactive)
+ (newsticker--treeview-restore-buffers)
+ (save-current-buffer
+ (set-buffer (newsticker--treeview-list-buffer))
+ (if (newsticker--treeview-list-highlight-start)
+ (forward-line 1))
+ (if (eobp)
+ (forward-line -1)))
+ (newsticker-treeview-show-item))
+
+(defun newsticker-treeview-prev-item ()
+ "Move to previous item."
+ (interactive)
+ (newsticker--treeview-restore-buffers)
+ (save-current-buffer
+ (set-buffer (newsticker--treeview-list-buffer))
+ (forward-line -1))
+ (newsticker-treeview-show-item))
+
+(defun newsticker-treeview-next-new-or-immortal-item ()
+ "Move to next new or immortal item."
+ (interactive)
+ (newsticker--treeview-restore-buffers)
+ (newsticker--treeview-list-clear-highlight)
+ (catch 'found
+ (let ((index (newsticker-treeview-next-item)))
+ (while t
+ (save-current-buffer
+ (set-buffer (newsticker--treeview-list-buffer))
+ (forward-line 1)
+ (when (eobp)
+ (forward-line -1)
+ (throw 'found nil)))
+ (when (memq (newsticker--age
+ (newsticker--treeview-get-selected-item)) '(new immortal))
+ (newsticker-treeview-show-item)
+ (throw 'found t))))))
+
+(defun newsticker-treeview-prev-new-or-immortal-item ()
+ "Move to previous new or immortal item."
+ (interactive)
+ (newsticker--treeview-restore-buffers)
+ (newsticker--treeview-list-clear-highlight)
+ (catch 'found
+ (let ((index (newsticker-treeview-next-item)))
+ (while t
+ (save-current-buffer
+ (set-buffer (newsticker--treeview-list-buffer))
+ (forward-line -1)
+ (when (bobp)
+ (throw 'found nil)))
+ (when (memq (newsticker--age
+ (newsticker--treeview-get-selected-item)) '(new immortal))
+ (newsticker-treeview-show-item)
+ (throw 'found t))))))
+
+(defun newsticker--treeview-get-selected-item ()
+ "Return item that is currently selected in list buffer."
+ (save-excursion
+ (set-buffer (newsticker--treeview-list-buffer))
+ (beginning-of-line)
+ (get-text-property (point) :nt-item)))
+
+(defun newsticker-treeview-mark-item-old (&optional dont-proceed)
+ "Mark current item as old unless it is obsolete.
+Move to next item unless DONT-PROCEED is non-nil."
+ (interactive)
+ (let ((item (newsticker--treeview-get-selected-item)))
+ (unless (eq (newsticker--age item) 'obsolete)
+ (newsticker--treeview-mark-item item 'old)))
+ (unless dont-proceed
+ (newsticker-treeview-next-item)))
+
+(defun newsticker-treeview-toggle-item-immortal ()
+ "Toggle immortality of current item."
+ (interactive)
+ (let* ((item (newsticker--treeview-get-selected-item))
+ (new-age (if (eq (newsticker--age item) 'immortal)
+ 'old
+ 'immortal)))
+ (newsticker--treeview-mark-item item new-age)
+ (newsticker-treeview-next-item)))
+
+(defun newsticker--treeview-mark-item (item new-age)
+ "Mark ITEM with NEW-AGE."
+ (when item
+ (setcar (nthcdr 4 item) new-age)
+ ;; clean up ticker FIXME
+ ))
+
+(defun newsticker-treeview-mark-list-items-old ()
+ "Mark all listed items as old."
+ (interactive)
+ (let ((current-feed (or newsticker--treeview-current-feed
+ newsticker--treeview-current-vfeed)))
+ (save-excursion
+ (set-buffer (newsticker--treeview-list-buffer))
+ (goto-char (point-min))
+ (while (not (eobp))
+ (let ((item (get-text-property (point) :nt-item)))
+ (unless (memq (newsticker--age item) '(immortal obsolete))
+ (newsticker--treeview-mark-item item 'old)))
+ (forward-line 1)))
+ (newsticker--treeview-tree-update-tags)
+ (if current-feed
+ (newsticker-treeview-jump current-feed))))
+
+(defun newsticker-treeview-save-item ()
+ "Save current item."
+ (interactive)
+ (newsticker-save-item (or newsticker--treeview-current-feed
+ newsticker--treeview-current-vfeed)
+ (newsticker--treeview-get-selected-item)))
+
+(defun newsticker--treeview-set-current-node (node)
+ "Make NODE the current node."
+ (save-excursion
+ (set-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))
+ (setq newsticker--treeview-current-vfeed (widget-get node :nt-vfeed))
+ ;;(message "newsticker--treeview-set-current-node %s/%s" (widget-get node
:tag)
+ ;; (widget-get node :nt-id))
+ ;; node)
+ (newsticker--treeview-tree-update-highlight)))
+
+(defun newsticker--treeview-get-first-child (node)
+ "Get first child of NODE."
+ (let ((children (widget-get node :children)))
+ (if children
+ (car children)
+ nil)))
+
+(defun newsticker--treeview-get-second-child (node)
+ "Get scond child of NODE."
+ (let ((children (widget-get node :children)))
+ (if children
+ (car (cdr children))
+ nil)))
+
+(defun newsticker--treeview-get-last-child (node)
+ "Get last child of NODE."
+ ;;(message "newsticker--treeview-get-last-child %s" (widget-get node :tag))
+ (let ((children (widget-get node :children)))
+ (if children
+ (car (reverse children))
+ nil)))
+
+(defun newsticker--treeview-get-feed-vfeed (node)
+ "Get (virtual) feed of NODE."
+ (or (widget-get node :nt-feed) (widget-get node :nt-vfeed)))
+
+(defun newsticker--treeview-get-next-sibling (node)
+ "Get next sibling of NODE."
+ (let ((parent (widget-get node :parent)))
+ (catch 'found
+ (let ((children (widget-get parent :children)))
+ (while children
+ (if (newsticker--treeview-nodes-eq (car children) node)
+ (throw 'found (car (cdr children))))
+ (setq children (cdr children)))))))
+
+(defun newsticker--treeview-get-prev-sibling (node)
+ "Get previous sibling of NODE."
+ (let ((parent (widget-get node :parent)))
+ (catch 'found
+ (let ((children (widget-get parent :children))
+ (prev nil))
+ (while children
+ (if (and (newsticker--treeview-nodes-eq (car children) node)
+ (widget-get prev :nt-id))
+ (throw 'found prev))
+ (setq prev (car children))
+ (setq children (cdr children)))))))
+
+(defun newsticker--treeview-get-next-uncle (node)
+ "Get next uncle of NODE, i.e. parent's next sibling."
+ (let* ((parent (widget-get node :parent))
+ (grand-parent (widget-get parent :parent)))
+ (catch 'found
+ (let ((uncles (widget-get grand-parent :children)))
+ (while uncles
+ (if (newsticker--treeview-nodes-eq (car uncles) parent)
+ (throw 'found (car (cdr uncles))))
+ (setq uncles (cdr uncles)))))))
+
+(defun newsticker--treeview-get-prev-uncle (node)
+ "Get previous uncle of NODE, i.e. parent's previous sibling."
+ (let* ((parent (widget-get node :parent))
+ (grand-parent (widget-get parent :parent)))
+ (catch 'found
+ (let ((uncles (widget-get grand-parent :children))
+ (prev nil))
+ (while uncles
+ (if (newsticker--treeview-nodes-eq (car uncles) parent)
+ (throw 'found prev))
+ (setq prev (car uncles))
+ (setq uncles (cdr uncles)))))))
+
+(defun newsticker--treeview-get-other-tree ()
+ "Get other tree."
+ (if (and (newsticker--treeview-get-current-node)
+ (widget-get (newsticker--treeview-get-current-node) :nt-feed))
+ newsticker--treeview-vfeed-tree
+ newsticker--treeview-feed-tree))
+
+(defun newsticker--treeview-activate-node (node &optional backward)
+ "Activate NODE.
+If NODE is a tree widget the node's first subnode is activated.
+If BACKWARD is non-nil the last subnode of the previous sibling
+is activated."
+ (newsticker--treeview-set-current-node node)
+ (save-current-buffer
+ (set-buffer (newsticker--treeview-tree-buffer))
+ (cond ((eq (widget-type node) 'tree-widget)
+ (unless (widget-get node :open)
+ (widget-put node :open nil)
+ (widget-apply-action node))
+ (newsticker--treeview-activate-node
+ (if backward
+ (newsticker--treeview-get-last-child node)
+ (newsticker--treeview-get-second-child node))))
+ (node
+ (widget-apply-action node)))))
+
+(defun newsticker-treeview-next-feed ()
+ "Move to next feed."
+ (interactive)
+ (newsticker--treeview-restore-buffers)
+ (let ((cur (newsticker--treeview-get-current-node)))
+ ;;(message "newsticker-treeview-next-feed from %s"
+ ;; (widget-get cur :tag))
+ (if cur
+ (let ((new (or (newsticker--treeview-get-next-sibling cur)
+ (newsticker--treeview-get-next-uncle cur)
+ (newsticker--treeview-get-other-tree))))
+ (newsticker--treeview-activate-node new))
+ (newsticker--treeview-activate-node
+ (car (widget-get newsticker--treeview-feed-tree :children)))))
+ (newsticker--treeview-tree-update-highlight))
+
+(defun newsticker-treeview-prev-feed ()
+ "Move to previous feed."
+ (interactive)
+ (newsticker--treeview-restore-buffers)
+ (let ((cur (newsticker--treeview-get-current-node)))
+ (message "newsticker-treeview-prev-feed from %s"
+ (widget-get cur :tag))
+ (if cur
+ (let ((new (or (newsticker--treeview-get-prev-sibling cur)
+ (newsticker--treeview-get-prev-uncle cur)
+ (newsticker--treeview-get-other-tree))))
+ (newsticker--treeview-activate-node new t))
+ (newsticker--treeview-activate-node
+ (car (widget-get newsticker--treeview-feed-tree :children)) t)))
+ (newsticker--treeview-tree-update-highlight))
+
+(defun newsticker-treeview-next-page ()
+ "Scroll item buffer."
+ (interactive)
+ (save-selected-window
+ (select-window (newsticker--treeview-item-window) t)
+ (condition-case nil
+ (scroll-up nil)
+ (error
+ (goto-char (point-min))))))
+
+
+(defun newsticker--treeview-unfold-node (feed-name)
+ "Recursively show subtree above the node that represents FEED-NAME."
+ (let ((node (newsticker--treeview-get-node-of-feed feed-name)))
+ (unless node
+ (let* ((group-name (or (car (newsticker--group-find-group-for-feed
+ feed-name))
+ (newsticker--group-get-parent-group
+ feed-name))))
+ (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))
+ (widget-put node :nt-selected t)
+ (widget-apply-action node)
+ (newsticker--treeview-set-current-node node)))))
+
+(defun newsticker-treeview-jump (feed-name)
+ "Jump to feed FEED-NAME in newsticker treeview."
+ (interactive
+ (list (let ((completion-ignore-case t))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-item-window) nil))
+ (completing-read
+ "Jump to feed: "
+ (mapcar 'car (append newsticker-url-list
+ newsticker-url-list-defaults))
+ nil t))))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-item-window) t))
+ (newsticker--treeview-unfold-node feed-name))
+
+;; ======================================================================
+;;; Groups
+;; ======================================================================
+(defun newsticker--group-do-find-group-for-feed (feed-name node)
+ "Recursively find FEED-NAME in NODE."
+ (if (member feed-name (cdr node))
+ (throw 'found node)
+ (mapc (lambda (n)
+ (if (listp n)
+ (newsticker--group-do-find-group-for-feed feed-name n)))
+ (cdr node))))
+
+(defun newsticker--group-find-group-for-feed (feed-name)
+ "Find group containing FEED-NAME."
+ (catch 'found
+ (newsticker--group-do-find-group-for-feed feed-name
+ newsticker-groups)
+ nil))
+
+(defun newsticker--group-do-get-group (name node)
+ "Recursively find group with NAME below NODE."
+ (if (string= name (car node))
+ (throw 'found node)
+ (mapc (lambda (n)
+ (if (listp n)
+ (newsticker--group-do-get-group name n)))
+ (cdr node))))
+
+(defun newsticker--group-get-group (name)
+ "Find group with NAME."
+ (catch 'found
+ (mapc (lambda (n)
+ (if (listp n)
+ (newsticker--group-do-get-group name n)))
+ newsticker-groups)
+ nil))
+
+(defun newsticker--group-do-get-parent-group (name node parent)
+ "Recursively find parent group for NAME from NODE which is a child of
PARENT."
+ (if (string= name (car node))
+ (throw 'found parent)
+ (mapc (lambda (n)
+ (if (listp n)
+ (newsticker--group-do-get-parent-group name n (car node))))
+ (cdr node))))
+
+(defun newsticker--group-get-parent-group (name)
+ "Find parent group for group named NAME."
+ (catch 'found
+ (mapc (lambda (n)
+ (if (listp n)
+ (newsticker--group-do-get-parent-group
+ name n (car newsticker-groups))))
+ newsticker-groups)
+ nil))
+
+
+(defun newsticker--group-get-subgroups (group &optional recursive)
+ "Return list of subgroups for GROUP.
+If RECURSIVE is non-nil recursively get subgroups and return a nested list."
+ (let ((result nil))
+ (mapc (lambda (n)
+ (when (listp n)
+ (setq result (cons (car n) result))
+ (let ((subgroups (newsticker--group-get-subgroups n recursive)))
+ (when subgroups
+ (setq result (append subgroups result))))))
+ group)
+ result))
+
+(defun newsticker--group-all-groups ()
+ "Return nested list of all groups."
+ (newsticker--group-get-subgroups newsticker-groups t))
+
+(defun newsticker--group-get-feeds (group &optional recursive)
+ "Return list of all feeds in GROUP.
+If RECURSIVE is non-nil recursively get feeds of subgroups and
+return a nested list."
+ (let ((result nil))
+ (mapc (lambda (n)
+ (if (not (listp n))
+ (setq result (cons n result))
+ (if recursive
+ (let ((subfeeds (newsticker--group-get-feeds n t)))
+ (when subfeeds
+ (setq result (append subfeeds result)))))))
+ group)
+ result))
+
+(defun newsticker-group-add-group (name parent)
+ "Add group NAME to group PARENT."
+ (interactive
+ (list (read-string "Group Name: ")
+ (let ((completion-ignore-case t))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-item-window) nil))
+ (completing-read "Parent Group: " (newsticker--group-all-groups)
+ nil t))))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-item-window) t))
+ (if (newsticker--group-get-group name)
+ (error "Group %s exists already" name))
+ (let ((p (if (and parent (not (string= parent "")))
+ (newsticker--group-get-group parent)
+ newsticker-groups)))
+ (unless p
+ (error "Parent %s does not exist" parent))
+ (setcdr p (cons (list name) (cdr p))))
+ (newsticker--treeview-tree-update))
+
+(defun newsticker-group-move-feed (name group-name &optional no-update)
+ "Move feed NAME to group GROUP-NAME.
+Update teeview afterwards unless NO-UPDATE is non-nil."
+ (interactive
+ (let ((completion-ignore-case t))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-item-window) nil))
+ (list (completing-read "Feed Name: "
+ (mapcar 'car newsticker-url-list)
+ nil t newsticker--treeview-current-feed)
+ (completing-read "Group Name: " (newsticker--group-all-groups)
+ nil t))))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-item-window) t))
+ (let ((group (if (and group-name (not (string= group-name "")))
+ (newsticker--group-get-group group-name)
+ newsticker-groups)))
+ (unless group
+ (error "Group %s does not exist" group-name))
+ (while (let ((old-group
+ (newsticker--group-find-group-for-feed name)))
+ (when old-group
+ (delete name old-group))
+ old-group))
+ (setcdr group (cons name (cdr group)))
+ (unless no-update
+ (newsticker--treeview-tree-update)
+ (newsticker-treeview-update))))
+
+(defun newsticker-group-delete-group (name)
+ "Remove group NAME."
+ (interactive
+ (let ((completion-ignore-case t))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-item-window) nil))
+ (list (completing-read "Group Name: " (newsticker--group-all-groups)
+ nil t))))
+ (if newsticker-treeview-own-frame
+ (set-window-dedicated-p (newsticker--treeview-item-window) t))
+ (let* ((g (newsticker--group-get-group name))
+ (p (or (newsticker--group-get-parent-group name)
+ newsticker-groups)))
+ (unless g
+ (error "Group %s does not exist" name))
+ (delete g p))
+ (newsticker--treeview-tree-update))
+
+(defun newsticker--count-groups (group)
+ "Recursively count number of subgroups of GROUP."
+ (let ((result 1))
+ (mapc (lambda (g)
+ (if (listp g)
+ (setq result (+ result (newsticker--count-groups g)))))
+ (cdr group))
+ result))
+
+(defun newsticker--count-grouped-feeds (group)
+ "Recursively count number of feeds in GROUP and its subgroups."
+ (let ((result 0))
+ (mapc (lambda (g)
+ (if (listp g)
+ (setq result (+ result (newsticker--count-grouped-feeds g)))
+ (setq result (1+ result))))
+ (cdr group))
+ result))
+
+(defun newsticker--group-remove-obsolete-feeds (group)
+ "Recursively remove obselete feeds from GROUP."
+ (let ((result nil)
+ (urls (append newsticker-url-list newsticker-url-list-defaults)))
+ (mapc (lambda (g)
+ (if (listp g)
+ (let ((sub-groups
+ (newsticker--group-remove-obsolete-feeds g)))
+ (if sub-groups
+ (setq result (cons sub-groups result))))
+ (if (assoc g urls)
+ (setq result (cons g result)))))
+ (cdr group))
+ (if result
+ (cons (car group) (reverse result))
+ result)))
+
+(defun newsticker--group-manage-orphan-feeds ()
+ "Put unmanaged feeds into `newsticker-groups'.
+Remove obsolete feeds as well."
+ (let ((new-feed nil)
+ (grouped-feeds (newsticker--count-grouped-feeds newsticker-groups)))
+ (mapc (lambda (f)
+ (unless (newsticker--group-find-group-for-feed (car f))
+ (setq new-feed t)
+ (newsticker-group-move-feed (car f) nil t)))
+ (append newsticker-url-list-defaults newsticker-url-list))
+ (setq newsticker-groups
+ (newsticker--group-remove-obsolete-feeds newsticker-groups))
+ (if (or new-feed
+ (not (= grouped-feeds
+ (newsticker--count-grouped-feeds newsticker-groups))))
+ (newsticker--treeview-tree-update))))
+
+;; ======================================================================
+;;; Modes
+;; ======================================================================
+(defun newsticker--treeview-create-groups-menu (group-list
+ excluded-group)
+ "Create menu for GROUP-LIST omitting EXCLUDED-GROUP."
+ (let ((menu (make-sparse-keymap (if (stringp (car group-list))
+ (car group-list)
+ "Move to group..."))))
+ (mapc (lambda (g)
+ (when (listp g)
+ (let ((title (if (stringp (car g))
+ (car g)
+ "Move to group...")))
+ (unless (eq g excluded-group)
+ (define-key menu (vector (intern title))
+ (list 'menu-item title
+ (newsticker--treeview-create-groups-menu
+ (cdr g) excluded-group)))))))
+ (reverse group-list))
+ menu))
+
+(defun newsticker--treeview-create-tree-menu (feed-name)
+ "Create tree menu for FEED-NAME."
+ (let ((menu (make-sparse-keymap feed-name)))
+ (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 [move]
+ (list 'menu-item "Move to group..."
+ (newsticker--treeview-create-groups-menu
+ newsticker-groups
+ (newsticker--group-get-group feed-name))))
+ menu))
+
+;;(makunbound 'newsticker-treeview-list-menu) ;FIXME
+(defvar newsticker-treeview-list-menu
+ (let ((menu (make-sparse-keymap "Newsticker List")))
+ (define-key menu [newsticker-treeview-mark-list-items-old]
+ (list 'menu-item "Mark all items old"
+ 'newsticker-treeview-mark-list-items-old))
+ menu)
+ "Map for newsticker tree menu.")
+
+;;(makunbound 'newsticker-treeview-mode-map) ;FIXME
+(defvar newsticker-treeview-mode-map
+ (let ((map (make-sparse-keymap 'newsticker-treeview-mode-map)))
+ (define-key map " " 'newsticker-treeview-next-page)
+ (define-key map "a" 'newsticker-add-url)
+ (define-key map "F" 'newsticker-treeview-prev-feed)
+ (define-key map "f" 'newsticker-treeview-next-feed)
+ (define-key map "g" 'newsticker-treeview-get-news)
+ (define-key map "G" 'newsticker-get-all-news)
+ (define-key map "i" 'newsticker-treeview-toggle-item-immortal)
+ (define-key map "j" 'newsticker-treeview-jump)
+ (define-key map "n" 'newsticker-treeview-next-item)
+ (define-key map "N" 'newsticker-treeview-next-new-or-immortal-item)
+ (define-key map "O" 'newsticker-treeview-mark-list-items-old)
+ (define-key map "o" 'newsticker-treeview-mark-item-old)
+ (define-key map "p" 'newsticker-treeview-prev-item)
+ (define-key map "P" 'newsticker-treeview-prev-new-or-immortal-item)
+ (define-key map "q" 'newsticker-treeview-quit)
+ (define-key map "S" 'newsticker-treeview-save-item)
+ (define-key map "s" 'newsticker-treeview-save)
+ (define-key map "u" 'newsticker-treeview-update)
+ (define-key map "v" 'newsticker-treeview-browse-url)
+ ;;(define-key map "\n" 'newsticker-treeview-scroll-item)
+ ;;(define-key map "\C-m" 'newsticker-treeview-scroll-item)
+ (define-key map "\M-m" 'newsticker-group-move-feed)
+ (define-key map "\M-a" 'newsticker-group-add-group)
+ map)
+ "Mode map for newsticker treeview.")
+
+(defun newsticker-treeview-mode ()
+ "Major mode for Newsticker Treeview.
+\\{newsticker-treeview-mode-map}"
+ (kill-all-local-variables)
+ (use-local-map newsticker-treeview-mode-map)
+ (setq major-mode 'newsticker-treeview-mode)
+ (setq mode-name "Newsticker TV")
+ (if (boundp 'tool-bar-map)
+ (set (make-local-variable 'tool-bar-map)
+ newsticker-treeview-tool-bar-map))
+ (setq buffer-read-only t
+ truncate-lines t))
+
+;;(makunbound 'newsticker-treeview-list-mode-map);FIXME
+(define-derived-mode newsticker-treeview-list-mode newsticker-treeview-mode
+ "Item List"
+ (let ((header (concat
+ (propertize " " 'display '(space :align-to 0))
+ (newsticker-treeview-list-make-sort-button "*" 'sort-by-age)
+ (propertize " " 'display '(space :align-to 2))
+ (if newsticker--treeview-list-show-feed
+ (concat "Feed"
+ (propertize " " 'display '(space :align-to 12)))
+ "")
+ (newsticker-treeview-list-make-sort-button "Date"
+ 'sort-by-time)
+ (if newsticker--treeview-list-show-feed
+ (propertize " " 'display '(space :align-to 28))
+ (propertize " " 'display '(space :align-to 18)))
+ (newsticker-treeview-list-make-sort-button "Title"
+ 'sort-by-title))))
+ (setq header-line-format header))
+ (define-key newsticker-treeview-list-mode-map [down-mouse-3]
+ newsticker-treeview-list-menu))
+
+(defun newsticker-treeview-tree-click (event)
+ "Handle click EVENT on a tag in the newsticker tree."
+ (interactive "e")
+ (save-excursion
+ (switch-to-buffer (window-buffer (posn-window (event-end event))))
+ (newsticker-treeview-tree-do-click (posn-point (event-end event)))))
+
+(defun newsticker-treeview-tree-do-click (&optional pos event)
+ "Actually handle click event.
+POS gives the position where EVENT occurred."
+ (interactive)
+ (unless pos (setq pos (point)))
+ (let ((pos (or pos (point)))
+ (nt-id (get-text-property pos :nt-id))
+ (item (get-text-property pos :nt-item)))
+ (cond (item
+ ;; click in list buffer
+ (newsticker-treeview-show-item))
+ (t
+ ;; click in tree buffer
+ (let ((w (newsticker--treeview-get-node nt-id)))
+ (when w
+ (newsticker--treeview-tree-update-tag w t t)
+ (setq w (newsticker--treeview-get-node nt-id))
+ (widget-put w :nt-selected t)
+ (widget-apply w :action event)
+ (newsticker--treeview-set-current-node w))))))
+ (newsticker--treeview-tree-update-highlight))
+
+(defun newsticker--treeview-restore-buffers ()
+ "Restore treeview buffers."
+ (catch 'error
+ (dotimes (i 3)
+ (let ((win (nth i newsticker--treeview-windows))
+ (buf (nth i newsticker--treeview-buffers)))
+ (unless (window-live-p win)
+ (newsticker--treeview-window-init)
+ (newsticker--treeview-buffer-init)
+ (throw 'error t))
+ (unless (eq (window-buffer win) buf)
+ (set-window-buffer win buf t))))))
+
+(defun newsticker--treeview-frame-init ()
+ "Initialize treeview frame."
+ (when newsticker-treeview-own-frame
+ (unless (and newsticker--frame (frame-live-p newsticker--frame))
+ (setq newsticker--frame (make-frame '((name . "Newsticker")))))
+ (select-frame-set-input-focus newsticker--frame)
+ (raise-frame newsticker--frame)))
+
+(defun newsticker--treeview-window-init ()
+ "Initialize treeview windows."
+ (setq newsticker--saved-window-config (current-window-configuration))
+ (setq newsticker--treeview-windows nil)
+ (setq newsticker--treeview-buffers nil)
+ (delete-other-windows)
+ (split-window-horizontally 25)
+ (add-to-list 'newsticker--treeview-windows (selected-window) t)
+ (other-window 1)
+ (split-window-vertically 10)
+ (add-to-list 'newsticker--treeview-windows (selected-window) t)
+ (other-window 1)
+ (add-to-list 'newsticker--treeview-windows (selected-window) t)
+ (other-window 1))
+
+;;;###autoload
+(defun newsticker-treeview ()
+ "Start newsticker treeview."
+ (interactive)
+ (newsticker--treeview-load)
+ (setq newsticker--sentinel-callback 'newsticker-treeview-update)
+ (newsticker--treeview-frame-init)
+ (newsticker--treeview-window-init)
+ (newsticker--treeview-buffer-init)
+ (newsticker--group-manage-orphan-feeds)
+ (if newsticker--window-config
+ (set-window-configuration newsticker--window-config))
+ (newsticker--treeview-set-current-node newsticker--treeview-feed-tree)
+ (newsticker-start t) ;; will start only if not running
+ (newsticker-treeview-update)
+ (newsticker--treeview-item-show-text
+ "Newsticker"
+ "Welcome to newsticker!"))
+
+(defun newsticker-treeview-get-news ()
+ "Get news for current feed."
+ (interactive)
+ (when newsticker--treeview-current-feed
+ (newsticker-get-news newsticker--treeview-current-feed)))
+
+(provide 'newsticker-treeview)
+
+;; arch-tag: 5dbaff48-1f3e-4fc6-8ebd-e966fc90d2d4
+;;; newst-treeview.el ends here
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Ulf Jasper <=