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(require 'jao-org-utils)
(require 'pdf-info)
(defvar jao-org--sink-dir "./")
(defun jao-org--pdf-p (file) (string-match-p ".*\\.pdf$" file))
(defun jao-org-links--open-pdf (link)
"Open LINK in pdf-view-mode."
(require 'pdf-tools)
(cond ((string-match "\\(.*\\)::\\([0-9]*\\)\\+\\+\\([[0-9]\\.*[0-9]*\\)" link)
(let* ((path (match-string 1 link))
(page (string-to-number (match-string 2 link)))
(height (string-to-number (match-string 3 link))))
(org-open-file path 1)
(pdf-view-goto-page page)
(image-set-window-vscroll
(round (/ (* height (cdr (pdf-view-image-size))) (frame-char-height))))))
((string-match "\\(.*\\)::\\([0-9]+\\)$" link)
(let* ((path (match-string 1 link))
(page (string-to-number (match-string 2 link))))
(org-open-file path 1)
(pdf-view-goto-page page)))
(t
(org-open-file link 1))))
(defun jao-org-links--follow-doc (link)
(let* ((full-link (concat org-directory "/doc/" link))
(dest-path (car (split-string full-link "::"))))
(when (not (file-exists-p dest-path))
(let* ((sink-file (expand-file-name link jao-org--sink-dir))
(real-file (if (file-exists-p sink-file) sink-file
(read-file-name "Import file: "
jao-org--sink-dir link link))))
(shell-command (format "mv %s %s" real-file dest-path))))
(if (jao-org--pdf-p dest-path)
(jao-org-links--open-pdf full-link)
(browse-url (format "file://%s" (expand-file-name dest-path))))))
(defun jao-org-links--complete-doc (&optional arg)
(let ((default-directory jao-org--sink-dir))
(let ((f (replace-regexp-in-string "^file:" "doc:"
(org-file-complete-link arg))))
(if (jao-org--pdf-p p)
(concat f "::" (read-from-minibuffer "Page: " "1"))
f))))
(defsubst jao-org--title->file (title)
(concat (mapconcat 'downcase (split-string title nil t) "-") ".pdf"))
(defun jao-org--pdf-title ()
(let ((base (file-name-base (pdf-view-buffer-file-name))))
(capitalize (replace-regexp-in-string "-" " " base))))
(defvar-local jao--pdf-outline nil)
(defun jao-org--pdf-section-title (&optional page)
(when (not jao--pdf-outline)
(setq-local jao--pdf-outline (pdf-info-outline)))
(let ((page (or page (pdf-view-current-page)))
(outline jao--pdf-outline)
(cur-page 0)
(cur-title (jao-org--pdf-title)))
(while (and (car outline) (< 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)))
cur-title))
(defun jao-org-links--store-pdf-link ()
(when (derived-mode-p 'pdf-view-mode)
(let ((path buffer-file-name)
(page (pdf-view-current-page)))
(org-store-link-props
:type "doc"
:link (format "doc:%s::%d" (file-name-nondirectory path) page)
:description (format "%s (p. %d)" (jao-org--pdf-section-title) page)))))
;;;###autoload
(defun jao-org-insert-doc (title)
(interactive "sDocument title: ")
(insert (format "[[doc:%s][%s]]" (jao-org--title->file title) title)))
;;;###autoload
(defun jao-org-links-setup (sink-dir)
(interactive)
(org-link-set-parameters "doc"
:follow #'jao-org-links--follow-doc
:complete #'jao-org-links--complete-doc
:store #'jao-org-links--store-pdf-link)
(setq jao-org--sink-dir (file-name-as-directory sink-dir)))
(defun jao-org--open-other (otp)
(let ((rxs ))))
;;;###autoload
(defun jao-org-pdf-goto-org (arg)
(interactive "P")
(when (jao-org--pdf-p buffer-file-name)
(let* ((file (replace-regexp-in-string "/doc/\\(.+\\)\\.pdf$"
"/notes/\\1.org"
buffer-file-name))
(new (not (file-exists-p file)))
(title (jao-org--pdf-title)))
(when (or arg new) (org-store-link nil t))
(find-file-other-window file)
(when new
(insert "#+title: " title "\n#+author:\n#+startup: latexpreview\n\n")
(org-insert-link)))))
(provide 'jao-org-links)
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