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;; -*- lexical-binding: t; -*-
(require 'jao-org-notes)
(require 'jao-doc-view)
(require 'jao-pdf)
(defvar jao-org--sink-dir "./")
(defvar jao-org-open-pdf-fun #'jao-org--pdf-open)
(defun jao-org--pdf-open (path page &optional height)
(org-open-file path 1)
(jao-doc-view-goto-page page height))
(defun jao-org--pdf-open (path page &optional height)
(funcall (or jao-org-open-pdf-fun #'jao-org--pdf-open) path page height))
(defun jao-org-links--open-pdf (link)
"Open LINK in pdf-view-mode."
(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))))
(jao-org--pdf-open path page height)))
((string-match "\\(.*\\)::\\([0-9]+\\)$" link)
(let* ((path (match-string 1 link))
(page (max 1 (string-to-number (match-string 2 link)))))
(jao-org--pdf-open path page)))
(t (jao-org--pdf-open link nil))))
(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))))
(rename-file real-file dest-path)))
(if (jao-pdf-is-pdf-file 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-pdf-is-pdf-file f)
(let ((page (read-from-minibuffer "Page: " "")))
(if (> (string-to-number page) 0)
(concat f "::" (read-from-minibuffer "Page: " ""))
f))
f))))
;;;###autoload
(defvar jao-org-links-pdf-store-fun nil)
(defun jao-org-links--store-pdf-link ()
(or (when (fboundp jao-org-links-pdf-store-fun)
(funcall jao-org-links-pdf-store-fun))
(when (derived-mode-p 'pdf-view-mode 'doc-view-mode)
(jao-org-links-store-pdf-link buffer-file-name
(jao-doc-view-current-page)
(jao-pdf-section-title)))))
;;;###autoload
(defun jao-org-links-store-pdf-link (path page title)
(org-link-store-props
:type "doc"
:link (format "doc:%s::%d" (file-name-nondirectory path) page)
:description (format "%s (p. %d)" title page)))
;;;###autoload
(defun jao-org-insert-doc (title)
(interactive "sDocument title: ")
(insert (format "[[doc:%s][%s]]" (jao-pdf-title-to-file-name title) title)))
;;;###autoload
(defun jao-org-org-to-pdf-file ()
(expand-file-name (concat "doc/" (file-name-base buffer-file-name) ".pdf")
(file-name-directory jao-org-notes-dir)))
;;;###autoload
(defun jao-org-pdf-to-org-file (&optional file-name)
(let* ((file-name (or file-name buffer-file-name))
(bn (file-name-base file-name))
(rx (format "%s\\.org$" (regexp-quote bn))))
(save-some-buffers nil
(lambda ()
(string-prefix-p jao-org-notes-dir buffer-file-name)))
(or (car (directory-files-recursively jao-org-notes-dir rx))
(let* ((dirs (jao-org-notes-cats))
(dir (completing-read "Notes subdir: " dirs nil t)))
(expand-file-name (concat dir "/" bn ".org") jao-org-notes-dir)))))
;;;###autoload
(defun jao-org-insert-doc-skeleton (&optional title)
(insert "#+title: " (or title (jao-pdf-title (buffer-file-name)))
"\n#+author:\n#+filetags: ")
(jao-org-notes-insert-tags)
(insert "\n#+startup: latexpreview\n\n"))
;;;###autoload
(defun jao-org-pdf-goto-org (arg)
(interactive "P")
(when (jao-pdf-is-pdf-file buffer-file-name)
(let* ((file (jao-org-pdf-to-org-file))
(new (not (file-exists-p file)))
(title (jao-pdf-title)))
(when (or arg new) (org-store-link nil t))
(find-file-other-window file)
(when new
(jao-org-insert-doc-skeleton title)
(org-insert-link)))))
;;;###autoload
(defun jao-org-pdf-goto-org* () (interactive) (jao-org-pdf-goto-org t))
;;;###autoload
(defun jao-org-goto-pdf ()
(interactive)
(if-let (f (jao-org-org-to-pdf-file))
(funcall jao-org-open-pdf-fun f 1)
(user-error "No PDF file associated with this buffer")))
(with-eval-after-load "org"
(define-key org-mode-map (kbd "C-c o") #'jao-org-goto-pdf))
;;;###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)
(org-link-set-parameters "docview" :store #'ignore)
(setq jao-org--sink-dir (file-name-as-directory sink-dir)))
(provide 'jao-org-links)
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