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elpa/biblio-20161014.1604/biblio-download.el

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+;;; biblio-download.el --- Lookup bibliographic information and open access records from Dissemin -*- lexical-binding: t -*-
+
+;; Copyright (C) 2016  Clément Pit-Claudel
+
+;; Author: Clément Pit-Claudel <clement.pitclaudel@live.com>
+;; URL: http://github.com/cpitclaudel/biblio.el
+
+;; 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/>.
+
+;;; Commentary:
+;;
+;; Download scientific papers directly from Emacs.
+;;
+;; This package plugs into `biblio-selection-mode' by adding an entry to the
+;; extended actions menu (`x').
+
+;;; Code:
+
+(require 'biblio-core)
+
+(defcustom biblio-download-directory nil
+  "Where to put downloaded papers."
+  :group 'biblio
+  :type 'directory)
+
+(defun biblio-download--action (record)
+  "Retrieve a RECORD from Dissemin, and display it.
+RECORD is a formatted record as expected by `biblio-insert-result'."
+  (let-alist record
+    (if .direct-url
+        (let* ((fname (concat .identifier ".pdf"))
+               (target (read-file-name "Save as (see also biblio-download-directory): "
+                                       biblio-download-directory fname nil fname)))
+          (url-copy-file .direct-url (expand-file-name target biblio-download-directory)))
+      (user-error "This record does not contain a direct URL (try arXiv or HAL)"))))
+
+;;;###autoload
+(defun biblio-download--register-action ()
+  "Add download to list of `biblio-selection-mode' actions."
+  (add-to-list 'biblio-selection-mode-actions-alist
+               '("Download this article" . biblio-download--action)))
+
+;;;###autoload
+(add-hook 'biblio-selection-mode-hook #'biblio-download--register-action)
+
+(provide 'biblio-download)
+;;; biblio-download.el ends here