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1020 lines
34 KiB
EmacsLisp
1020 lines
34 KiB
EmacsLisp
;;; gnus-salt.el --- alternate summary mode interfaces for Gnus
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;; Copyright (C) 1996,97 Free Software Foundation, Inc.
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;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;;; Code:
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(eval-when-compile (require 'cl))
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(require 'gnus)
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(require 'gnus-sum)
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;;;
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;;; gnus-pick-mode
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;;;
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(defvar gnus-pick-mode nil
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"Minor mode for providing a pick-and-read interface in Gnus summary buffers.")
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(defcustom gnus-pick-display-summary nil
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"*Display summary while reading."
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:type 'boolean
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:group 'gnus-summary-pick)
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(defcustom gnus-pick-mode-hook nil
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"Hook run in summary pick mode buffers."
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:type 'hook
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:group 'gnus-summary-pick)
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(defcustom gnus-mark-unpicked-articles-as-read nil
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"*If non-nil, mark all unpicked articles as read."
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:type 'boolean
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:group 'gnus-summary-pick)
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(defcustom gnus-pick-elegant-flow t
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"If non-nil, gnus-pick-start-reading will run gnus-summary-next-group when no articles have been picked."
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:type 'boolean
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:group 'gnus-summary-pick)
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(defcustom gnus-summary-pick-line-format
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"%-5P %U\%R\%z\%I\%(%[%4L: %-20,20n%]%) %s\n"
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"*The format specification of the lines in pick buffers.
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It accepts the same format specs that `gnus-summary-line-format' does."
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:type 'string
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:group 'gnus-summary-pick)
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;;; Internal variables.
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(defvar gnus-pick-mode-map nil)
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(unless gnus-pick-mode-map
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(setq gnus-pick-mode-map (make-sparse-keymap))
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(gnus-define-keys
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gnus-pick-mode-map
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"t" gnus-uu-mark-thread
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"T" gnus-uu-unmark-thread
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" " gnus-pick-next-page
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"u" gnus-summary-unmark-as-processable
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"U" gnus-summary-unmark-all-processable
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"v" gnus-uu-mark-over
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"r" gnus-uu-mark-region
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"R" gnus-uu-unmark-region
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"e" gnus-uu-mark-by-regexp
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"E" gnus-uu-mark-by-regexp
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"b" gnus-uu-mark-buffer
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"B" gnus-uu-unmark-buffer
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"." gnus-pick-article
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gnus-down-mouse-2 gnus-pick-mouse-pick-region
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;;gnus-mouse-2 gnus-pick-mouse-pick
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"X" gnus-pick-start-reading
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"\r" gnus-pick-start-reading))
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(defun gnus-pick-make-menu-bar ()
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(unless (boundp 'gnus-pick-menu)
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(easy-menu-define
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gnus-pick-menu gnus-pick-mode-map ""
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'("Pick"
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("Pick"
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["Article" gnus-summary-mark-as-processable t]
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["Thread" gnus-uu-mark-thread t]
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["Region" gnus-uu-mark-region t]
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["Regexp" gnus-uu-mark-regexp t]
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["Buffer" gnus-uu-mark-buffer t])
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("Unpick"
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["Article" gnus-summary-unmark-as-processable t]
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["Thread" gnus-uu-unmark-thread t]
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["Region" gnus-uu-unmark-region t]
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["Regexp" gnus-uu-unmark-regexp t]
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["Buffer" gnus-uu-unmark-buffer t])
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["Start reading" gnus-pick-start-reading t]
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["Switch pick mode off" gnus-pick-mode gnus-pick-mode]))))
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(defun gnus-pick-mode (&optional arg)
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"Minor mode for providing a pick-and-read interface in Gnus summary buffers.
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\\{gnus-pick-mode-map}"
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(interactive "P")
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(when (eq major-mode 'gnus-summary-mode)
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(if (not (set (make-local-variable 'gnus-pick-mode)
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(if (null arg) (not gnus-pick-mode)
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(> (prefix-numeric-value arg) 0))))
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(remove-hook 'gnus-message-setup-hook 'gnus-pick-setup-message)
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;; Make sure that we don't select any articles upon group entry.
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(set (make-local-variable 'gnus-auto-select-first) nil)
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;; Change line format.
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(setq gnus-summary-line-format gnus-summary-pick-line-format)
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(setq gnus-summary-line-format-spec nil)
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(gnus-update-format-specifications nil 'summary)
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(gnus-update-summary-mark-positions)
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(add-hook 'gnus-message-setup-hook 'gnus-pick-setup-message)
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(set (make-local-variable 'gnus-summary-goto-unread) 'never)
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;; Set up the menu.
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(when (gnus-visual-p 'pick-menu 'menu)
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(gnus-pick-make-menu-bar))
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(gnus-add-minor-mode 'gnus-pick-mode " Pick" gnus-pick-mode-map)
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(run-hooks 'gnus-pick-mode-hook))))
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(defun gnus-pick-setup-message ()
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"Make Message do the right thing on exit."
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(when (and (gnus-buffer-live-p gnus-summary-buffer)
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(save-excursion
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(set-buffer gnus-summary-buffer)
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gnus-pick-mode))
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(message-add-action
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'(gnus-configure-windows 'pick t) 'send 'exit 'postpone 'kill)))
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(defvar gnus-pick-line-number 1)
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(defun gnus-pick-line-number ()
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"Return the current line number."
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(if (bobp)
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(setq gnus-pick-line-number 1)
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(incf gnus-pick-line-number)))
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(defun gnus-pick-start-reading (&optional catch-up)
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"Start reading the picked articles.
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If given a prefix, mark all unpicked articles as read."
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(interactive "P")
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(if gnus-newsgroup-processable
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(progn
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(gnus-summary-limit-to-articles nil)
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(when (or catch-up gnus-mark-unpicked-articles-as-read)
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(gnus-summary-limit-mark-excluded-as-read))
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(gnus-summary-first-article)
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(gnus-configure-windows
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(if gnus-pick-display-summary 'article 'pick) t))
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(if gnus-pick-elegant-flow
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(progn
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(when (or catch-up gnus-mark-unpicked-articles-as-read)
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(gnus-summary-catchup nil t))
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(if (gnus-group-quit-config gnus-newsgroup-name)
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(gnus-summary-exit)
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(gnus-summary-next-group)))
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(error "No articles have been picked"))))
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(defun gnus-pick-article (&optional arg)
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"Pick the article on the current line.
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If ARG, pick the article on that line instead."
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(interactive "P")
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(when arg
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(let (pos)
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(save-excursion
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(goto-char (point-min))
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(when (zerop (forward-line (1- (prefix-numeric-value arg))))
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(setq pos (point))))
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(if (not pos)
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(gnus-error 2 "No such line: %s" arg)
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(goto-char pos))))
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(gnus-summary-mark-as-processable 1))
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(defun gnus-pick-mouse-pick (e)
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(interactive "e")
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(mouse-set-point e)
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(save-excursion
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(gnus-summary-mark-as-processable 1)))
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(defun gnus-pick-mouse-pick-region (start-event)
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"Pick articles that the mouse is dragged over.
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This must be bound to a button-down mouse event."
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(interactive "e")
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(mouse-minibuffer-check start-event)
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(let* ((echo-keystrokes 0)
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(start-posn (event-start start-event))
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(start-point (posn-point start-posn))
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(start-line (1+ (count-lines 1 start-point)))
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(start-window (posn-window start-posn))
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(start-frame (window-frame start-window))
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(bounds (window-edges start-window))
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(top (nth 1 bounds))
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(bottom (if (window-minibuffer-p start-window)
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(nth 3 bounds)
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;; Don't count the mode line.
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(1- (nth 3 bounds))))
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(click-count (1- (event-click-count start-event))))
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(setq mouse-selection-click-count click-count)
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(setq mouse-selection-click-count-buffer (current-buffer))
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(mouse-set-point start-event)
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;; In case the down click is in the middle of some intangible text,
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;; use the end of that text, and put it in START-POINT.
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(when (< (point) start-point)
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(goto-char start-point))
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(gnus-pick-article)
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(setq start-point (point))
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;; end-of-range is used only in the single-click case.
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;; It is the place where the drag has reached so far
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;; (but not outside the window where the drag started).
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(let (event end end-point last-end-point (end-of-range (point)))
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(track-mouse
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(while (progn
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(setq event (read-event))
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(or (mouse-movement-p event)
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(eq (car-safe event) 'switch-frame)))
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(if (eq (car-safe event) 'switch-frame)
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nil
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(setq end (event-end event)
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end-point (posn-point end))
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(when end-point
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(setq last-end-point end-point))
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(cond
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;; Are we moving within the original window?
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((and (eq (posn-window end) start-window)
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(integer-or-marker-p end-point))
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;; Go to START-POINT first, so that when we move to END-POINT,
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;; if it's in the middle of intangible text,
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;; point jumps in the direction away from START-POINT.
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(goto-char start-point)
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(goto-char end-point)
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(gnus-pick-article)
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;; In case the user moved his mouse really fast, pick
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;; articles on the line between this one and the last one.
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(let* ((this-line (1+ (count-lines 1 end-point)))
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(min-line (min this-line start-line))
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(max-line (max this-line start-line)))
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(while (< min-line max-line)
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(goto-line min-line)
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(gnus-pick-article)
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(setq min-line (1+ min-line)))
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(setq start-line this-line))
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(when (zerop (% click-count 3))
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(setq end-of-range (point))))
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(t
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(let ((mouse-row (cdr (cdr (mouse-position)))))
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(cond
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((null mouse-row))
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((< mouse-row top)
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(mouse-scroll-subr start-window (- mouse-row top)))
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((>= mouse-row bottom)
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(mouse-scroll-subr start-window
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(1+ (- mouse-row bottom)))))))))))
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(when (consp event)
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(let ((fun (key-binding (vector (car event)))))
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;; Run the binding of the terminating up-event, if possible.
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;; In the case of a multiple click, it gives the wrong results,
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;; because it would fail to set up a region.
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(when nil
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;; (and (= (mod mouse-selection-click-count 3) 0) (fboundp fun))
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;; In this case, we can just let the up-event execute normally.
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(let ((end (event-end event)))
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;; Set the position in the event before we replay it,
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;; because otherwise it may have a position in the wrong
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;; buffer.
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(setcar (cdr end) end-of-range)
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;; Delete the overlay before calling the function,
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;; because delete-overlay increases buffer-modified-tick.
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(push event unread-command-events))))))))
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(defun gnus-pick-next-page ()
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"Go to the next page. If at the end of the buffer, start reading articles."
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(interactive)
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(let ((scroll-in-place nil))
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(condition-case nil
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(scroll-up)
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(end-of-buffer (gnus-pick-start-reading)))))
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;;;
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;;; gnus-binary-mode
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;;;
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(defvar gnus-binary-mode nil
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"Minor mode for providing a binary group interface in Gnus summary buffers.")
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(defvar gnus-binary-mode-hook nil
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"Hook run in summary binary mode buffers.")
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(defvar gnus-binary-mode-map nil)
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(unless gnus-binary-mode-map
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(setq gnus-binary-mode-map (make-sparse-keymap))
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(gnus-define-keys
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gnus-binary-mode-map
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"g" gnus-binary-show-article))
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(defun gnus-binary-make-menu-bar ()
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(unless (boundp 'gnus-binary-menu)
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(easy-menu-define
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gnus-binary-menu gnus-binary-mode-map ""
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'("Pick"
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["Switch binary mode off" gnus-binary-mode t]))))
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(defun gnus-binary-mode (&optional arg)
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"Minor mode for providing a binary group interface in Gnus summary buffers."
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(interactive "P")
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(when (eq major-mode 'gnus-summary-mode)
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(make-local-variable 'gnus-binary-mode)
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(setq gnus-binary-mode
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(if (null arg) (not gnus-binary-mode)
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(> (prefix-numeric-value arg) 0)))
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(when gnus-binary-mode
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;; Make sure that we don't select any articles upon group entry.
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(make-local-variable 'gnus-auto-select-first)
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(setq gnus-auto-select-first nil)
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(make-local-variable 'gnus-summary-display-article-function)
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(setq gnus-summary-display-article-function 'gnus-binary-display-article)
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;; Set up the menu.
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(when (gnus-visual-p 'binary-menu 'menu)
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(gnus-binary-make-menu-bar))
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(gnus-add-minor-mode 'gnus-binary-mode " Binary" gnus-binary-mode-map)
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(run-hooks 'gnus-binary-mode-hook))))
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(defun gnus-binary-display-article (article &optional all-header)
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"Run ARTICLE through the binary decode functions."
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(when (gnus-summary-goto-subject article)
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(let ((gnus-view-pseudos 'automatic))
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(gnus-uu-decode-uu))))
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(defun gnus-binary-show-article (&optional arg)
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"Bypass the binary functions and show the article."
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(interactive "P")
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(let (gnus-summary-display-article-function)
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(gnus-summary-show-article arg)))
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;;;
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;;; gnus-tree-mode
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;;;
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(defcustom gnus-tree-line-format "%(%[%3,3n%]%)"
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"Format of tree elements."
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:type 'string
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:group 'gnus-summary-tree)
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(defcustom gnus-tree-minimize-window t
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"If non-nil, minimize the tree buffer window.
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If a number, never let the tree buffer grow taller than that number of
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lines."
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:type 'boolean
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:group 'gnus-summary-tree)
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(defcustom gnus-selected-tree-face 'modeline
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"*Face used for highlighting selected articles in the thread tree."
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:type 'face
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:group 'gnus-summary-tree)
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(defvar gnus-tree-brackets '((?\[ . ?\]) (?\( . ?\))
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(?\{ . ?\}) (?< . ?>))
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"Brackets used in tree nodes.")
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(defvar gnus-tree-parent-child-edges '(?- ?\\ ?|)
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"Characters used to connect parents with children.")
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(defcustom gnus-tree-mode-line-format "Gnus: %%b %S %Z"
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"*The format specification for the tree mode line."
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:type 'string
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:group 'gnus-summary-tree)
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(defcustom gnus-generate-tree-function 'gnus-generate-vertical-tree
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"*Function for generating a thread tree.
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Two predefined functions are available:
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`gnus-generate-horizontal-tree' and `gnus-generate-vertical-tree'."
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:type '(radio (function-item gnus-generate-vertical-tree)
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(function-item gnus-generate-horizontal-tree)
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(function :tag "Other" nil))
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:group 'gnus-summary-tree)
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(defcustom gnus-tree-mode-hook nil
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"*Hook run in tree mode buffers."
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:type 'hook
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:group 'gnus-summary-tree)
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;;; Internal variables.
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(defvar gnus-tree-line-format-alist
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`((?n gnus-tmp-name ?s)
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(?f gnus-tmp-from ?s)
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(?N gnus-tmp-number ?d)
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(?\[ gnus-tmp-open-bracket ?c)
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(?\] gnus-tmp-close-bracket ?c)
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(?s gnus-tmp-subject ?s)))
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(defvar gnus-tree-mode-line-format-alist gnus-summary-mode-line-format-alist)
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(defvar gnus-tree-mode-line-format-spec nil)
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(defvar gnus-tree-line-format-spec nil)
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(defvar gnus-tree-node-length nil)
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(defvar gnus-selected-tree-overlay nil)
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(defvar gnus-tree-displayed-thread nil)
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(defvar gnus-tree-mode-map nil)
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(put 'gnus-tree-mode 'mode-class 'special)
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(unless gnus-tree-mode-map
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(setq gnus-tree-mode-map (make-keymap))
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(suppress-keymap gnus-tree-mode-map)
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(gnus-define-keys
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gnus-tree-mode-map
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"\r" gnus-tree-select-article
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gnus-mouse-2 gnus-tree-pick-article
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"\C-?" gnus-tree-read-summary-keys
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"h" gnus-tree-show-summary
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"\C-c\C-i" gnus-info-find-node)
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(substitute-key-definition
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'undefined 'gnus-tree-read-summary-keys gnus-tree-mode-map))
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(defun gnus-tree-make-menu-bar ()
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(unless (boundp 'gnus-tree-menu)
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(easy-menu-define
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gnus-tree-menu gnus-tree-mode-map ""
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'("Tree"
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["Select article" gnus-tree-select-article t]))))
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(defun gnus-tree-mode ()
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"Major mode for displaying thread trees."
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(interactive)
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(setq gnus-tree-mode-line-format-spec
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(gnus-parse-format gnus-tree-mode-line-format
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gnus-summary-mode-line-format-alist))
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(setq gnus-tree-line-format-spec
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(gnus-parse-format gnus-tree-line-format
|
|
gnus-tree-line-format-alist t))
|
|
(when (gnus-visual-p 'tree-menu 'menu)
|
|
(gnus-tree-make-menu-bar))
|
|
(kill-all-local-variables)
|
|
(gnus-simplify-mode-line)
|
|
(setq mode-name "Tree")
|
|
(setq major-mode 'gnus-tree-mode)
|
|
(use-local-map gnus-tree-mode-map)
|
|
(buffer-disable-undo (current-buffer))
|
|
(setq buffer-read-only t)
|
|
(setq truncate-lines t)
|
|
(save-excursion
|
|
(gnus-set-work-buffer)
|
|
(gnus-tree-node-insert (make-mail-header "") nil)
|
|
(setq gnus-tree-node-length (1- (point))))
|
|
(run-hooks 'gnus-tree-mode-hook))
|
|
|
|
(defun gnus-tree-read-summary-keys (&optional arg)
|
|
"Read a summary buffer key sequence and execute it."
|
|
(interactive "P")
|
|
(let ((buf (current-buffer))
|
|
win)
|
|
(gnus-article-read-summary-keys arg nil t)
|
|
(when (setq win (get-buffer-window buf))
|
|
(select-window win)
|
|
(when gnus-selected-tree-overlay
|
|
(goto-char (or (gnus-overlay-end gnus-selected-tree-overlay) 1)))
|
|
(gnus-tree-minimize))))
|
|
|
|
(defun gnus-tree-show-summary ()
|
|
"Reconfigure windows to show summary buffer."
|
|
(interactive)
|
|
(if (not (gnus-buffer-live-p gnus-summary-buffer))
|
|
(error "There is no summary buffer for this tree buffer")
|
|
(gnus-configure-windows 'article)
|
|
(gnus-summary-goto-subject gnus-current-article)))
|
|
|
|
(defun gnus-tree-select-article (article)
|
|
"Select the article under point, if any."
|
|
(interactive (list (gnus-tree-article-number)))
|
|
(let ((buf (current-buffer)))
|
|
(when article
|
|
(save-excursion
|
|
(set-buffer gnus-summary-buffer)
|
|
(gnus-summary-goto-article article))
|
|
(select-window (get-buffer-window buf)))))
|
|
|
|
(defun gnus-tree-pick-article (e)
|
|
"Select the article under the mouse pointer."
|
|
(interactive "e")
|
|
(mouse-set-point e)
|
|
(gnus-tree-select-article (gnus-tree-article-number)))
|
|
|
|
(defun gnus-tree-article-number ()
|
|
(get-text-property (point) 'gnus-number))
|
|
|
|
(defun gnus-tree-article-region (article)
|
|
"Return a cons with BEG and END of the article region."
|
|
(let ((pos (text-property-any (point-min) (point-max) 'gnus-number article)))
|
|
(when pos
|
|
(cons pos (next-single-property-change pos 'gnus-number)))))
|
|
|
|
(defun gnus-tree-goto-article (article)
|
|
(let ((pos (text-property-any (point-min) (point-max) 'gnus-number article)))
|
|
(when pos
|
|
(goto-char pos))))
|
|
|
|
(defun gnus-tree-recenter ()
|
|
"Center point in the tree window."
|
|
(let ((selected (selected-window))
|
|
(tree-window (get-buffer-window gnus-tree-buffer t)))
|
|
(when tree-window
|
|
(select-window tree-window)
|
|
(when gnus-selected-tree-overlay
|
|
(goto-char (or (gnus-overlay-end gnus-selected-tree-overlay) 1)))
|
|
(let* ((top (cond ((< (window-height) 4) 0)
|
|
((< (window-height) 7) 1)
|
|
(t 2)))
|
|
(height (1- (window-height)))
|
|
(bottom (save-excursion (goto-char (point-max))
|
|
(forward-line (- height))
|
|
(point))))
|
|
;; Set the window start to either `bottom', which is the biggest
|
|
;; possible valid number, or the second line from the top,
|
|
;; whichever is the least.
|
|
(set-window-start
|
|
tree-window (min bottom (save-excursion
|
|
(forward-line (- top)) (point)))))
|
|
(select-window selected))))
|
|
|
|
(defun gnus-get-tree-buffer ()
|
|
"Return the tree buffer properly initialized."
|
|
(save-excursion
|
|
(set-buffer (get-buffer-create gnus-tree-buffer))
|
|
(unless (eq major-mode 'gnus-tree-mode)
|
|
(gnus-add-current-to-buffer-list)
|
|
(gnus-tree-mode))
|
|
(current-buffer)))
|
|
|
|
(defun gnus-tree-minimize ()
|
|
(when (and gnus-tree-minimize-window
|
|
(not (one-window-p)))
|
|
(let ((windows 0)
|
|
tot-win-height)
|
|
(walk-windows (lambda (window) (incf windows)))
|
|
(setq tot-win-height
|
|
(- (frame-height)
|
|
(* window-min-height (1- windows))
|
|
2))
|
|
(let* ((window-min-height 2)
|
|
(height (count-lines (point-min) (point-max)))
|
|
(min (max (1- window-min-height) height))
|
|
(tot (if (numberp gnus-tree-minimize-window)
|
|
(min gnus-tree-minimize-window min)
|
|
min))
|
|
(win (get-buffer-window (current-buffer)))
|
|
(wh (and win (1- (window-height win)))))
|
|
(setq tot (min tot tot-win-height))
|
|
(when (and win
|
|
(not (eq tot wh)))
|
|
(let ((selected (selected-window)))
|
|
(when (ignore-errors (select-window win))
|
|
(enlarge-window (- tot wh))
|
|
(select-window selected))))))))
|
|
|
|
;;; Generating the tree.
|
|
|
|
(defun gnus-tree-node-insert (header sparse &optional adopted)
|
|
(let* ((dummy (stringp header))
|
|
(header (if (vectorp header) header
|
|
(progn
|
|
(setq header (make-mail-header "*****"))
|
|
(mail-header-set-number header 0)
|
|
(mail-header-set-lines header 0)
|
|
(mail-header-set-chars header 0)
|
|
header)))
|
|
(gnus-tmp-from (mail-header-from header))
|
|
(gnus-tmp-subject (mail-header-subject header))
|
|
(gnus-tmp-number (mail-header-number header))
|
|
(gnus-tmp-name
|
|
(cond
|
|
((string-match "(.+)" gnus-tmp-from)
|
|
(substring gnus-tmp-from
|
|
(1+ (match-beginning 0)) (1- (match-end 0))))
|
|
((string-match "<[^>]+> *$" gnus-tmp-from)
|
|
(let ((beg (match-beginning 0)))
|
|
(or (and (string-match "^\"[^\"]*\"" gnus-tmp-from)
|
|
(substring gnus-tmp-from (1+ (match-beginning 0))
|
|
(1- (match-end 0))))
|
|
(substring gnus-tmp-from 0 beg))))
|
|
((memq gnus-tmp-number sparse)
|
|
"***")
|
|
(t gnus-tmp-from)))
|
|
(gnus-tmp-open-bracket
|
|
(cond ((memq gnus-tmp-number sparse)
|
|
(caadr gnus-tree-brackets))
|
|
(dummy (caaddr gnus-tree-brackets))
|
|
(adopted (car (nth 3 gnus-tree-brackets)))
|
|
(t (caar gnus-tree-brackets))))
|
|
(gnus-tmp-close-bracket
|
|
(cond ((memq gnus-tmp-number sparse)
|
|
(cdadr gnus-tree-brackets))
|
|
(adopted (cdr (nth 3 gnus-tree-brackets)))
|
|
(dummy
|
|
(cdaddr gnus-tree-brackets))
|
|
(t (cdar gnus-tree-brackets))))
|
|
(buffer-read-only nil)
|
|
beg end)
|
|
(gnus-add-text-properties
|
|
(setq beg (point))
|
|
(setq end (progn (eval gnus-tree-line-format-spec) (point)))
|
|
(list 'gnus-number gnus-tmp-number))
|
|
(when (or t (gnus-visual-p 'tree-highlight 'highlight))
|
|
(gnus-tree-highlight-node gnus-tmp-number beg end))))
|
|
|
|
(defun gnus-tree-highlight-node (article beg end)
|
|
"Highlight current line according to `gnus-summary-highlight'."
|
|
(let ((list gnus-summary-highlight)
|
|
face)
|
|
(save-excursion
|
|
(set-buffer gnus-summary-buffer)
|
|
(let* ((score (or (cdr (assq article gnus-newsgroup-scored))
|
|
gnus-summary-default-score 0))
|
|
(default gnus-summary-default-score)
|
|
(mark (or (gnus-summary-article-mark article) gnus-unread-mark)))
|
|
;; Eval the cars of the lists until we find a match.
|
|
(while (and list
|
|
(not (eval (caar list))))
|
|
(setq list (cdr list)))))
|
|
(unless (eq (setq face (cdar list)) (get-text-property beg 'face))
|
|
(gnus-put-text-property
|
|
beg end 'face
|
|
(if (boundp face) (symbol-value face) face)))))
|
|
|
|
(defun gnus-tree-indent (level)
|
|
(insert (make-string (1- (* (1+ gnus-tree-node-length) level)) ? )))
|
|
|
|
(defvar gnus-tmp-limit)
|
|
(defvar gnus-tmp-sparse)
|
|
(defvar gnus-tmp-indent)
|
|
|
|
(defun gnus-generate-tree (thread)
|
|
"Generate a thread tree for THREAD."
|
|
(save-excursion
|
|
(set-buffer (gnus-get-tree-buffer))
|
|
(let ((buffer-read-only nil)
|
|
(gnus-tmp-indent 0))
|
|
(erase-buffer)
|
|
(funcall gnus-generate-tree-function thread 0)
|
|
(gnus-set-mode-line 'tree)
|
|
(goto-char (point-min))
|
|
(gnus-tree-minimize)
|
|
(gnus-tree-recenter)
|
|
(let ((selected (selected-window)))
|
|
(when (get-buffer-window (set-buffer gnus-tree-buffer) t)
|
|
(select-window (get-buffer-window (set-buffer gnus-tree-buffer) t))
|
|
(gnus-horizontal-recenter)
|
|
(select-window selected))))))
|
|
|
|
(defun gnus-generate-horizontal-tree (thread level &optional dummyp adopted)
|
|
"Generate a horizontal tree."
|
|
(let* ((dummy (stringp (car thread)))
|
|
(do (or dummy
|
|
(and (car thread)
|
|
(memq (mail-header-number (car thread))
|
|
gnus-tmp-limit))))
|
|
col beg)
|
|
(if (not do)
|
|
;; We don't want this article.
|
|
(setq thread (cdr thread))
|
|
(if (not (bolp))
|
|
;; Not the first article on the line, so we insert a "-".
|
|
(insert (car gnus-tree-parent-child-edges))
|
|
;; If the level isn't zero, then we insert some indentation.
|
|
(unless (zerop level)
|
|
(gnus-tree-indent level)
|
|
(insert (cadr gnus-tree-parent-child-edges))
|
|
(setq col (- (setq beg (point)) (gnus-point-at-bol) 1))
|
|
;; Draw "|" lines upwards.
|
|
(while (progn
|
|
(forward-line -1)
|
|
(forward-char col)
|
|
(= (following-char) ? ))
|
|
(delete-char 1)
|
|
(insert (caddr gnus-tree-parent-child-edges)))
|
|
(goto-char beg)))
|
|
(setq dummyp nil)
|
|
;; Insert the article node.
|
|
(gnus-tree-node-insert (pop thread) gnus-tmp-sparse adopted))
|
|
(if (null thread)
|
|
;; End of the thread, so we go to the next line.
|
|
(unless (bolp)
|
|
(insert "\n"))
|
|
;; Recurse downwards in all children of this article.
|
|
(while thread
|
|
(gnus-generate-horizontal-tree
|
|
(pop thread) (if do (1+ level) level)
|
|
(or dummyp dummy) dummy)))))
|
|
|
|
(defsubst gnus-tree-indent-vertical ()
|
|
(let ((len (- (* (1+ gnus-tree-node-length) gnus-tmp-indent)
|
|
(- (point) (gnus-point-at-bol)))))
|
|
(when (> len 0)
|
|
(insert (make-string len ? )))))
|
|
|
|
(defsubst gnus-tree-forward-line (n)
|
|
(while (>= (decf n) 0)
|
|
(unless (zerop (forward-line 1))
|
|
(end-of-line)
|
|
(insert "\n")))
|
|
(end-of-line))
|
|
|
|
(defun gnus-generate-vertical-tree (thread level &optional dummyp adopted)
|
|
"Generate a vertical tree."
|
|
(let* ((dummy (stringp (car thread)))
|
|
(do (or dummy
|
|
(and (car thread)
|
|
(memq (mail-header-number (car thread))
|
|
gnus-tmp-limit))))
|
|
beg)
|
|
(if (not do)
|
|
;; We don't want this article.
|
|
(setq thread (cdr thread))
|
|
(if (not (save-excursion (beginning-of-line) (bobp)))
|
|
;; Not the first article on the line, so we insert a "-".
|
|
(progn
|
|
(gnus-tree-indent-vertical)
|
|
(insert (make-string (/ gnus-tree-node-length 2) ? ))
|
|
(insert (caddr gnus-tree-parent-child-edges))
|
|
(gnus-tree-forward-line 1))
|
|
;; If the level isn't zero, then we insert some indentation.
|
|
(unless (zerop gnus-tmp-indent)
|
|
(gnus-tree-forward-line (1- (* 2 level)))
|
|
(gnus-tree-indent-vertical)
|
|
(delete-char -1)
|
|
(insert (cadr gnus-tree-parent-child-edges))
|
|
(setq beg (point))
|
|
(forward-char -1)
|
|
;; Draw "-" lines leftwards.
|
|
(while (= (char-after (1- (point))) ? )
|
|
(delete-char -1)
|
|
(insert (car gnus-tree-parent-child-edges))
|
|
(forward-char -1))
|
|
(goto-char beg)
|
|
(gnus-tree-forward-line 1)))
|
|
(setq dummyp nil)
|
|
;; Insert the article node.
|
|
(gnus-tree-indent-vertical)
|
|
(gnus-tree-node-insert (pop thread) gnus-tmp-sparse adopted)
|
|
(gnus-tree-forward-line 1))
|
|
(if (null thread)
|
|
;; End of the thread, so we go to the next line.
|
|
(progn
|
|
(goto-char (point-min))
|
|
(end-of-line)
|
|
(incf gnus-tmp-indent))
|
|
;; Recurse downwards in all children of this article.
|
|
(while thread
|
|
(gnus-generate-vertical-tree
|
|
(pop thread) (if do (1+ level) level)
|
|
(or dummyp dummy) dummy)))))
|
|
|
|
;;; Interface functions.
|
|
|
|
(defun gnus-possibly-generate-tree (article &optional force)
|
|
"Generate the thread tree for ARTICLE if it isn't displayed already."
|
|
(when (save-excursion
|
|
(set-buffer gnus-summary-buffer)
|
|
(and gnus-use-trees
|
|
gnus-show-threads
|
|
(vectorp (gnus-summary-article-header article))))
|
|
(save-excursion
|
|
(let ((top (save-excursion
|
|
(set-buffer gnus-summary-buffer)
|
|
(gnus-cut-thread
|
|
(gnus-remove-thread
|
|
(mail-header-id
|
|
(gnus-summary-article-header article))
|
|
t))))
|
|
(gnus-tmp-limit gnus-newsgroup-limit)
|
|
(gnus-tmp-sparse gnus-newsgroup-sparse))
|
|
(when (or force
|
|
(not (eq top gnus-tree-displayed-thread)))
|
|
(gnus-generate-tree top)
|
|
(setq gnus-tree-displayed-thread top))))))
|
|
|
|
(defun gnus-tree-open (group)
|
|
(gnus-get-tree-buffer))
|
|
|
|
(defun gnus-tree-close (group)
|
|
;(gnus-kill-buffer gnus-tree-buffer)
|
|
)
|
|
|
|
(defun gnus-highlight-selected-tree (article)
|
|
"Highlight the selected article in the tree."
|
|
(let ((buf (current-buffer))
|
|
region)
|
|
(set-buffer gnus-tree-buffer)
|
|
(when (setq region (gnus-tree-article-region article))
|
|
(when (or (not gnus-selected-tree-overlay)
|
|
(gnus-extent-detached-p gnus-selected-tree-overlay))
|
|
;; Create a new overlay.
|
|
(gnus-overlay-put
|
|
(setq gnus-selected-tree-overlay (gnus-make-overlay 1 2))
|
|
'face gnus-selected-tree-face))
|
|
;; Move the overlay to the article.
|
|
(gnus-move-overlay
|
|
gnus-selected-tree-overlay (goto-char (car region)) (cdr region))
|
|
(gnus-tree-minimize)
|
|
(gnus-tree-recenter)
|
|
(let ((selected (selected-window)))
|
|
(when (get-buffer-window (set-buffer gnus-tree-buffer) t)
|
|
(select-window (get-buffer-window (set-buffer gnus-tree-buffer) t))
|
|
(gnus-horizontal-recenter)
|
|
(select-window selected))))
|
|
;; If we remove this save-excursion, it updates the wrong mode lines?!?
|
|
(save-excursion
|
|
(set-buffer gnus-tree-buffer)
|
|
(gnus-set-mode-line 'tree))
|
|
(set-buffer buf)))
|
|
|
|
(defun gnus-tree-highlight-article (article face)
|
|
(save-excursion
|
|
(set-buffer (gnus-get-tree-buffer))
|
|
(let (region)
|
|
(when (setq region (gnus-tree-article-region article))
|
|
(gnus-put-text-property (car region) (cdr region) 'face face)
|
|
(set-window-point
|
|
(get-buffer-window (current-buffer) t) (cdr region))))))
|
|
|
|
;;;
|
|
;;; gnus-carpal
|
|
;;;
|
|
|
|
(defvar gnus-carpal-group-buffer-buttons
|
|
'(("next" . gnus-group-next-unread-group)
|
|
("prev" . gnus-group-prev-unread-group)
|
|
("read" . gnus-group-read-group)
|
|
("select" . gnus-group-select-group)
|
|
("catch-up" . gnus-group-catchup-current)
|
|
("new-news" . gnus-group-get-new-news-this-group)
|
|
("toggle-sub" . gnus-group-unsubscribe-current-group)
|
|
("subscribe" . gnus-group-unsubscribe-group)
|
|
("kill" . gnus-group-kill-group)
|
|
("yank" . gnus-group-yank-group)
|
|
("describe" . gnus-group-describe-group)
|
|
"list"
|
|
("subscribed" . gnus-group-list-groups)
|
|
("all" . gnus-group-list-all-groups)
|
|
("killed" . gnus-group-list-killed)
|
|
("zombies" . gnus-group-list-zombies)
|
|
("matching" . gnus-group-list-matching)
|
|
("post" . gnus-group-post-news)
|
|
("mail" . gnus-group-mail)
|
|
("rescan" . gnus-group-get-new-news)
|
|
("browse-foreign" . gnus-group-browse-foreign)
|
|
("exit" . gnus-group-exit)))
|
|
|
|
(defvar gnus-carpal-summary-buffer-buttons
|
|
'("mark"
|
|
("read" . gnus-summary-mark-as-read-forward)
|
|
("tick" . gnus-summary-tick-article-forward)
|
|
("clear" . gnus-summary-clear-mark-forward)
|
|
("expirable" . gnus-summary-mark-as-expirable)
|
|
"move"
|
|
("scroll" . gnus-summary-next-page)
|
|
("next-unread" . gnus-summary-next-unread-article)
|
|
("prev-unread" . gnus-summary-prev-unread-article)
|
|
("first" . gnus-summary-first-unread-article)
|
|
("best" . gnus-summary-best-unread-article)
|
|
"article"
|
|
("headers" . gnus-summary-toggle-header)
|
|
("uudecode" . gnus-uu-decode-uu)
|
|
("enter-digest" . gnus-summary-enter-digest-group)
|
|
("fetch-parent" . gnus-summary-refer-parent-article)
|
|
"mail"
|
|
("move" . gnus-summary-move-article)
|
|
("copy" . gnus-summary-copy-article)
|
|
("respool" . gnus-summary-respool-article)
|
|
"threads"
|
|
("lower" . gnus-summary-lower-thread)
|
|
("kill" . gnus-summary-kill-thread)
|
|
"post"
|
|
("post" . gnus-summary-post-news)
|
|
("mail" . gnus-summary-mail)
|
|
("followup" . gnus-summary-followup-with-original)
|
|
("reply" . gnus-summary-reply-with-original)
|
|
("cancel" . gnus-summary-cancel-article)
|
|
"misc"
|
|
("exit" . gnus-summary-exit)
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|
("fed-up" . gnus-summary-catchup-and-goto-next-group)))
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|
|
|
(defvar gnus-carpal-server-buffer-buttons
|
|
'(("add" . gnus-server-add-server)
|
|
("browse" . gnus-server-browse-server)
|
|
("list" . gnus-server-list-servers)
|
|
("kill" . gnus-server-kill-server)
|
|
("yank" . gnus-server-yank-server)
|
|
("copy" . gnus-server-copy-server)
|
|
("exit" . gnus-server-exit)))
|
|
|
|
(defvar gnus-carpal-browse-buffer-buttons
|
|
'(("subscribe" . gnus-browse-unsubscribe-current-group)
|
|
("exit" . gnus-browse-exit)))
|
|
|
|
(defvar gnus-carpal-group-buffer "*Carpal Group*")
|
|
(defvar gnus-carpal-summary-buffer "*Carpal Summary*")
|
|
(defvar gnus-carpal-server-buffer "*Carpal Server*")
|
|
(defvar gnus-carpal-browse-buffer "*Carpal Browse*")
|
|
|
|
(defvar gnus-carpal-attached-buffer nil)
|
|
|
|
(defvar gnus-carpal-mode-hook nil
|
|
"*Hook run in carpal mode buffers.")
|
|
|
|
(defvar gnus-carpal-button-face 'bold
|
|
"*Face used on carpal buttons.")
|
|
|
|
(defvar gnus-carpal-header-face 'bold-italic
|
|
"*Face used on carpal buffer headers.")
|
|
|
|
(defvar gnus-carpal-mode-map nil)
|
|
(put 'gnus-carpal-mode 'mode-class 'special)
|
|
|
|
(if gnus-carpal-mode-map
|
|
nil
|
|
(setq gnus-carpal-mode-map (make-keymap))
|
|
(suppress-keymap gnus-carpal-mode-map)
|
|
(define-key gnus-carpal-mode-map " " 'gnus-carpal-select)
|
|
(define-key gnus-carpal-mode-map "\r" 'gnus-carpal-select)
|
|
(define-key gnus-carpal-mode-map gnus-mouse-2 'gnus-carpal-mouse-select))
|
|
|
|
(defun gnus-carpal-mode ()
|
|
"Major mode for clicking buttons.
|
|
|
|
All normal editing commands are switched off.
|
|
\\<gnus-carpal-mode-map>
|
|
The following commands are available:
|
|
|
|
\\{gnus-carpal-mode-map}"
|
|
(interactive)
|
|
(kill-all-local-variables)
|
|
(setq mode-line-modified (cdr gnus-mode-line-modified))
|
|
(setq major-mode 'gnus-carpal-mode)
|
|
(setq mode-name "Gnus Carpal")
|
|
(setq mode-line-process nil)
|
|
(use-local-map gnus-carpal-mode-map)
|
|
(buffer-disable-undo (current-buffer))
|
|
(setq buffer-read-only t)
|
|
(make-local-variable 'gnus-carpal-attached-buffer)
|
|
(run-hooks 'gnus-carpal-mode-hook))
|
|
|
|
(defun gnus-carpal-setup-buffer (type)
|
|
(let ((buffer (symbol-value (intern (format "gnus-carpal-%s-buffer" type)))))
|
|
(if (get-buffer buffer)
|
|
()
|
|
(save-excursion
|
|
(set-buffer (get-buffer-create buffer))
|
|
(gnus-carpal-mode)
|
|
(setq gnus-carpal-attached-buffer
|
|
(intern (format "gnus-%s-buffer" type)))
|
|
(gnus-add-current-to-buffer-list)
|
|
(let ((buttons (symbol-value
|
|
(intern (format "gnus-carpal-%s-buffer-buttons"
|
|
type))))
|
|
(buffer-read-only nil)
|
|
button)
|
|
(while buttons
|
|
(setq button (car buttons)
|
|
buttons (cdr buttons))
|
|
(if (stringp button)
|
|
(gnus-set-text-properties
|
|
(point)
|
|
(prog2 (insert button) (point) (insert " "))
|
|
(list 'face gnus-carpal-header-face))
|
|
(gnus-set-text-properties
|
|
(point)
|
|
(prog2 (insert (car button)) (point) (insert " "))
|
|
(list 'gnus-callback (cdr button)
|
|
'face gnus-carpal-button-face
|
|
gnus-mouse-face-prop 'highlight))))
|
|
(let ((fill-column (- (window-width) 2)))
|
|
(fill-region (point-min) (point-max)))
|
|
(set-window-point (get-buffer-window (current-buffer))
|
|
(point-min)))))))
|
|
|
|
(defun gnus-carpal-select ()
|
|
"Select the button under point."
|
|
(interactive)
|
|
(let ((func (get-text-property (point) 'gnus-callback)))
|
|
(if (null func)
|
|
()
|
|
(pop-to-buffer (symbol-value gnus-carpal-attached-buffer))
|
|
(call-interactively func))))
|
|
|
|
(defun gnus-carpal-mouse-select (event)
|
|
"Select the button under the mouse pointer."
|
|
(interactive "e")
|
|
(mouse-set-point event)
|
|
(gnus-carpal-select))
|
|
|
|
;;; Allow redefinition of functions.
|
|
(gnus-ems-redefine)
|
|
|
|
(provide 'gnus-salt)
|
|
|
|
;;; gnus-salt.el ends here
|