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[Emacs-diffs] Changes to newsticker-treeview.el
|
From: |
Ulf Jasper |
|
Subject: |
[Emacs-diffs] Changes to newsticker-treeview.el |
|
Date: |
Fri, 13 Jun 2008 17:08:26 +0000 |
CVSROOT: /sources/emacs
Module name: emacs
Changes by: Ulf Jasper <u11> 08/06/13 17:08:25
Index: newsticker-treeview.el
===================================================================
RCS file: newsticker-treeview.el
diff -N newsticker-treeview.el
--- newsticker-treeview.el 12 Jun 2008 05:49:26 -0000 1.7
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,1988 +0,0 @@
-;;; newsticker-treeview.el --- Treeview frontend for newsticker.
-
-;; Copyright (C) 2008 Free Software Foundation, Inc.
-
-;; Author: Ulf Jasper <address@hidden>
-;; Filename: newsticker-treeview.el
-;; URL: http://www.nongnu.org/newsticker
-;; Created: 2007
-;; Keywords: News, RSS, Atom
-;; Time-stamp: "8. Juni 2008, 20:42:16 (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
-;;; newsticker-treeview.el ends here