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+;;; org-docview.el --- support for links to doc-view-mode buffers
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+
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+;; Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009
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+;; Free Software Foundation, Inc.
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+
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+;; Author: Jan Böcker <jan.boecker at jboecker dot de>
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+;; Keywords: outlines, hypermedia, calendar, wp
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+;; Homepage: http://orgmode.org
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+;; Version: 6.33trans
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+;;
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+;; This file is part of GNU Emacs.
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+;;
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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 3 of the License, or
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+;; (at your option) any later version.
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+
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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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+
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+;; You should have received a copy of the GNU General Public License
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+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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+;;
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+;;; Commentary:
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+
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+;; This file implements links to open files in doc-view-mode.
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+;; Org-mode loads this module by default - if this is not what you want,
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+;; configure the variable `org-modules'.
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+
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+;; The links take the form
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+;;
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+;; docview:<file path>::<page number>
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+;;
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+;; for example: [[docview:~/.elisp/org/doc/org.pdf::1][Org-Mode Manual]]
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+;;
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+;; Autocompletion for inserting links is supported; you will be
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+;; prompted for a file and a page number.
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+;;
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+;; If you use org-store-link in a doc-view mode buffer, the stored
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+;; link will point to the current page.
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+
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+;;; Code:
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+
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+
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+(require 'org)
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+
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+(org-add-link-type "docview" 'org-docview-open)
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+(add-hook 'org-store-link-functions 'org-docview-store-link)
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+
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+(defun org-docview-open (link)
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+ (when (string-match "\\(.*\\)::\\([0-9]+\\)$" link)
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+ (let* ((path (match-string 1 link))
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+ (page (string-to-number (match-string 2 link))))
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+ (org-open-file path 1) ;; let org-mode open the file (in-emacs = 1)
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+ ;; to ensure org-link-frame-setup is respected
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+ (doc-view-goto-page page)
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+ )))
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+
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+(defun org-docview-store-link ()
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+ "Store a link to a docview buffer"
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+ (when (eq major-mode 'doc-view-mode)
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+ ;; This buffer is in doc-view-mode
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+ (let* ((path buffer-file-name)
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+ (page (doc-view-current-page))
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+ (link (concat "docview:" path "::" (number-to-string page)))
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+ (description ""))
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+ (org-store-link-props
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+ :type "docview"
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+ :link link
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+ :description path))))
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+
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+(defun org-docview-complete-link ()
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+ "Use the existing file name completion for file: links to get the file name,
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+ then ask the user for the page number and append it."
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+ (concat (replace-regexp-in-string "^file:" "docview:" (org-file-complete-link))
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+ "::"
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+ (read-from-minibuffer "Page:" "1")))
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+
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+
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+(provide 'org-docview)
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Jan Böcker