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;;; org-docview.el --- support for links to doc-view-mode buffers
;; Copyright (C) 2009-2013 Free Software Foundation, Inc.
;; Author: Jan Böcker <jan.boecker at jboecker dot de>
;; Keywords: outlines, hypermedia, calendar, wp
;; Homepage: http://orgmode.org
;;
;; 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:
;; This file implements links to open files in doc-view-mode.
;; Org-mode loads this module by default - if this is not what you want,
;; configure the variable `org-modules'.
;; The links take the form
;;
;; docview:<file path>::<page number>
;;
;; for example: [[docview:~/.elisp/org/doc/org.pdf::1][Org-Mode Manual]]
;;
;; Autocompletion for inserting links is supported; you will be
;; prompted for a file and a page number.
;;
;; If you use org-store-link in a doc-view mode buffer, the stored
;; link will point to the current page.
;;; Code:
(require 'org)
(declare-function doc-view-goto-page "ext:doc-view" (page))
(declare-function image-mode-window-get "ext:image-mode"
(prop &optional winprops))
(autoload 'doc-view-goto-page "doc-view")
(org-add-link-type "docview" 'org-docview-open)
(add-hook 'org-store-link-functions 'org-docview-store-link)
(defun org-docview-open (link)
(when (string-match "\\(.*\\)::\\([0-9]+\\)$" link)
(let* ((path (match-string 1 link))
(page (string-to-number (match-string 2 link))))
(org-open-file path 1) ;; let org-mode open the file (in-emacs = 1)
;; to ensure org-link-frame-setup is respected
(doc-view-goto-page page)
)))
(defun org-docview-store-link ()
"Store a link to a docview buffer."
(when (eq major-mode 'doc-view-mode)
;; This buffer is in doc-view-mode
(let* ((path buffer-file-name)
(page (image-mode-window-get 'page))
(link (concat "docview:" path "::" (number-to-string page)))
(description ""))
(org-store-link-props
:type "docview"
:link link
:description path))))
(defun org-docview-complete-link ()
"Use the existing file name completion for file.
Links to get the file name, then ask the user for the page number
and append it."
(concat (replace-regexp-in-string "^file:" "docview:" (org-file-complete-link))
"::"
(read-from-minibuffer "Page:" "1")))
(provide 'org-docview)
;;; org-docview.el ends here
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