blob: 9bf00984396ef61d7325afc72c10982714cc9baf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
;;; jao-pdf.el --- utilities for pdf files -*- lexical-binding: t; -*-
;; Copyright (C) 2022, 2025 jao
;; Author: jao <mail@jao.io>
;; Keywords: docs
;; 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Some niceties for PDFs:
;;
;; - Using mutools, we can extract the outline of PDFs, and tell back the
;; section title of a given page.
;; - Interoperability with zathura.
(require 'jao-doc-session)
;;; PDF info
(declare-function 'pdf-info-outline "pdf-info")
(defvar-local jao-pdf--outline nil)
(defun jao-pdf-is-pdf-file (file)
"Simply checks the FILE extension."
(string-match-p ".*\\.pdf$" file))
(defun jao-pdf-title-to-file-name (title)
"Convert a title, possibly with embedded spaces, to a PDF filename."
(concat (mapconcat 'downcase (split-string title nil t) "-") ".pdf"))
(defun jao-pdf-title (&optional fname)
(if (or fname (not (derived-mode-p 'doc-view-mode 'pdf-view-mode)))
(let ((base (file-name-base (or fname (buffer-file-name)))))
(capitalize (replace-regexp-in-string "-" " " base)))
(or (jao-pdf-section-title)
(when buffer-file-name (jao-pdf-title buffer-file-name)))))
(defvar-local jao-pdf--outline nil)
(defun jao-pdf-section-title (&optional page file-name)
(when (not jao-pdf--outline)
(setq-local jao-pdf--outline (doc-view--pdf-outline file-name)))
(let ((page (or page
(and (derived-mode-p 'doc-view-mode) (doc-view-current-page))
(and (derived-mode-p 'pdf-view) (pdf-view-current-page))))
(outline jao-pdf--outline)
(cur-page 0)
(cur-title (jao-pdf-title (or file-name buffer-file-name "title"))))
(while (and (car outline) page (< cur-page page))
(setq cur-page (cdr (assoc 'page (car outline))))
(when (<= cur-page page)
(setq cur-title (cdr (assoc 'title (car outline)))))
(setq outline (cdr outline)))
(replace-regexp-in-string "[[:blank:]]+" " " cur-title)))
;;; zathura interop
(defun jao-pdf-zathura-open-cmd (file page &optional suffix)
(let ((page (if page (format "-P %s" page) "")))
(format "zathura %s %s %s" file page (or suffix ""))))
(defun jao-pdf-zathura-title-rx (file)
(concat (file-name-nondirectory file) " \\[.+\\]"))
;; e.g. "~/org/doc/write-yourself-a-scheme-in-48-hours.pdf [96 (96/138)]"
(defun jao-pdf-zathura-file-info (title)
(when (string-match "\\(.+\\) \\[\\(.+\\) (\\([0-9]+\\)/\\([0-9]+\\))\\]"
title)
(list (expand-file-name (match-string 1 title))
(string-to-number (match-string 3 title))
(string-to-number (match-string 4 title))
(match-string 2 title))))
(defun jao-pdf--zathura-link (info)
(when-let* ((file (car info))
(page (cadr info))
(no (or (car (last info)) page))
(fn (file-name-nondirectory file))
(lnk (format "doc:%s::%s" fn page))
(desc (format "%s (p. %s)" (jao-pdf-section-title page file) no)))
(org-make-link-string lnk desc)))
(defun jao-pdf-zathura-org-link (title)
(jao-pdf--zathura-link (jao-pdf-zathura-file-info title)))
(defun jao-zathura-open (file page)
(let ((id (jao-x11-search-window (jao-pdf-zathura-title-rx file))))
(if (string-blank-p id)
(progn
(when jao-xmonad-enabled (jao-x11-goto-ws 2))
(jao-shell-exec (jao-pdf-zathura-open-cmd file page)))
(let* ((page (if page (format " && xdotool type %dg" page) ""))
(cmd (format "xdotool windowactivate %s%s" id page)))
(jao-shell-exec cmd t)))))
;;; DevonThink
(defun jao-pdf--devon-link (file)
(jao-shell-string "osascript"
(expand-file-name "find-devon-url.scpt" jao-data-dir)
(file-truename file)))
(defun jao-pdf-open-in-devon (file &optional page height)
(let ((url (jao-pdf--devon-link file)))
(unless (string-empty-p (or url ""))
(let* ((p (if page (format "?page=%s" (- page 1)) ""))
(u (format "%s%s" url p)))
(message "Opening %s ..." u)
(jao-shell-exec* "open" u)))))
;;; Open doc functions
(defun jao-find-or-open (file &optional page height)
(cond ((and jao-browse-doc-use-emacs-p window-system)
(let* ((buffs (buffer-list))
(b (catch 'done
(while buffs
(when (string-equal (buffer-file-name (car buffs)) file)
(throw 'done (car buffs)))
(setq buffs (cdr buffs))))))
(jao-afio-goto-docs)
(if b (pop-to-buffer b) (find-file file))
(when page (jao-doc-view-goto-page page height))))
(jao-river-enabled (jao-river-open-with-zathura file page))
(jao-sway-enabled (jao-sway-open-with-zathura file page))
(t (jao-zathura-open file page))))
(defun jao-open-doc (&optional file page height)
(interactive)
(when-let (file (or file
(read-file-name "Document: "
(concat jao-org-dir "/doc/"))))
(funcall jao-open-doc-fun file page height)))
(defun jao-select-pdf ()
(interactive)
(jao-buffer-same-mode '(pdf-view-mode doc-view-mode)
#'jao-afio-goto-docs))
(defun jao-open-with-zathura ()
(interactive)
(when-let (f buffer-file-name)
(let ((p (jao-doc-view-current-page)))
(cond (jao-river-enabled (jao-river-open-with-zathura f p))
(jao-sway-enabled (jao-sway-open-with-zathura f p))
(t (jao-zathura-open f p))))))
;;; doc:// links for browse-url
(defun jao-open-doc-url (url &rest _)
(when (string-match "doc://\\([^?]+\\)\\(\\?.*\\)?" url)
(let ((file (match-string 1 url))
(page (when-let* ((qs (match-string 2 url))
(long (> (length qs) 1))
(ps (url-parse-query-string (substring qs 1)))
(pn (cadr (assoc "page" ps))))
(string-to-number pn))))
(jao-open-doc (expand-file-name (concat "doc/" file) jao-org-dir) page))))
(add-to-list 'browse-url-handlers (cons "^doc://.+" 'jao-open-doc-url))
(provide 'jao-pdf)
;;; jao-pdf.el ends here
|
