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;;; helm-w3m.el --- W3m bookmark - helm interface.
;; Copyright (C) 2012 ~ 2013 Thierry Volpiatto <thierry.volpiatto@gmail.com>
;; This program 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.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Code:
(require 'cl-lib)
(require 'helm)
(require 'helm-utils)
(require 'helm-adaptative)
;; Some users have the emacs-w3m library in load-path
;; without having the w3m executable :-;
;; So check if w3m program is present before trying to load
;; emacs-w3m.
(eval-when-compile
(when (executable-find "w3m")
(require 'w3m-bookmark nil t)))
(defgroup helm-w3m nil
"W3m related Applications and libraries for Helm."
:group 'helm)
(defface helm-w3m-bookmarks '((t (:foreground "cyan1" :underline t)))
"Face for w3m bookmarks" :group 'helm-w3m)
(defvar w3m-bookmark-file "~/.w3m/bookmark.html")
(defvar helm-w3m-bookmarks-regexp ">\\([^><]+.[^</a>]\\)")
(defvar helm-w3m-bookmark-url-regexp "\\(https\\|http\\|ftp\\|file\\)://[^>]*")
(defvar helm-w3m-bookmarks-alist nil)
(defvar helm-source-w3m-bookmarks
'((name . "W3m Bookmarks")
(init . (lambda ()
(setq helm-w3m-bookmarks-alist
(helm-html-bookmarks-to-alist
w3m-bookmark-file
helm-w3m-bookmark-url-regexp
helm-w3m-bookmarks-regexp))))
(candidates . (lambda ()
(mapcar #'car helm-w3m-bookmarks-alist)))
(filtered-candidate-transformer
helm-adaptive-sort
helm-highlight-w3m-bookmarks)
(action . (("Browse Url"
. (lambda (candidate)
(helm-w3m-browse-bookmark candidate)))
("Copy Url"
. (lambda (elm)
(kill-new (helm-w3m-bookmarks-get-value elm))))
("Browse Url Externally"
. (lambda (candidate)
(helm-w3m-browse-bookmark candidate t)))
("Delete Bookmark"
. (lambda (candidate)
(helm-w3m-delete-bookmark candidate)))
("Rename Bookmark"
. (lambda (candidate)
(helm-w3m-rename-bookmark candidate)))))
(persistent-action . (lambda (candidate)
(if current-prefix-arg
(helm-w3m-browse-bookmark candidate t)
(helm-w3m-browse-bookmark candidate nil t))))
(persistent-help . "Open URL with emacs-w3m in new tab / \
C-u \\[helm-execute-persistent-action]: Open URL with Firefox"))
"Needs w3m and emacs-w3m.
http://w3m.sourceforge.net/
http://emacs-w3m.namazu.org/")
(defun helm-w3m-bookmarks-get-value (elm)
(replace-regexp-in-string
"\"" "" (cdr (assoc elm helm-w3m-bookmarks-alist))))
(defun helm-w3m-browse-bookmark (elm &optional use-external new-tab)
(let* ((fn (if use-external 'helm-browse-url 'w3m-browse-url))
(arg (and (eq fn 'w3m-browse-url) new-tab)))
(funcall fn (helm-w3m-bookmarks-get-value elm) arg)))
(defun helm-highlight-w3m-bookmarks (bookmarks source)
(cl-loop for i in bookmarks
collect (propertize
i 'face 'helm-w3m-bookmarks
'help-echo (helm-w3m-bookmarks-get-value i))))
(defun helm-w3m-delete-bookmark (elm)
"Delete w3m bookmark from `w3m-bookmark-file'."
(with-current-buffer
(find-file-literally w3m-bookmark-file)
(goto-char (point-min))
(when (re-search-forward elm nil t)
(forward-line 0)
(delete-region (point)
(line-end-position))
(delete-blank-lines))
(save-buffer)
(kill-buffer)))
(defun helm-w3m-rename-bookmark (elm)
"Rename w3m bookmark in `w3m-bookmark-file'."
(let* ((old-title (replace-regexp-in-string ">" "" elm))
(new-title (read-string "NewTitle: " old-title)))
(with-current-buffer
(find-file-literally w3m-bookmark-file)
(goto-char (point-min))
(when (re-search-forward (concat elm "<") nil t)
(goto-char (1- (point)))
(delete-char (- (length old-title)))
(insert new-title))
(save-buffer)
(kill-buffer))))
;;;###autoload
(defun helm-w3m-bookmarks ()
"Preconfigured `helm' for w3m bookmark.
Needs w3m and emacs-w3m.
http://w3m.sourceforge.net/
http://emacs-w3m.namazu.org/"
(interactive)
(helm-other-buffer 'helm-source-w3m-bookmarks
"*helm w3m bookmarks*"))
(provide 'helm-w3m)
;; Local Variables:
;; byte-compile-warnings: (not cl-functions obsolete)
;; coding: utf-8
;; indent-tabs-mode: nil
;; End:
;;; helm-w3m.el ends here
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