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org-noter.el
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;;; org-noter.el --- A synchronized, Org-mode, document annotator -*- lexical-binding: t; -*-
;; Copyright (C) 2017-2018 Gonçalo Santos
;; Author: Gonçalo Santos (aka. weirdNox@GitHub)
;; Homepage: https://github.com/weirdNox/org-noter
;; Keywords: lisp pdf interleave annotate external sync notes documents org-mode
;; Package-Requires: ((emacs "24.4") (cl-lib "0.6") (org "9.0"))
;; Version: 1.4.1 (MV)
;; This file is not part of GNU Emacs.
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;; The idea is to let you create notes that are kept in sync when you scroll through the
;; document, but that are external to it - the notes themselves live in an Org-mode file. As
;; such, this leverages the power of Org-mode (the notes may have outlines, latex fragments,
;; babel, etc...) while acting like notes that are made /in/ the document.
;; Also, I must thank Sebastian for the original idea and inspiration!
;; Link to the original Interleave package:
;; https://github.com/rudolfochrist/interleave
;;; Code:
(require 'org)
(require 'org-element)
(require 'cl-lib)
(declare-function doc-view-goto-page "doc-view")
(declare-function image-display-size "image-mode")
(declare-function image-get-display-property "image-mode")
(declare-function image-mode-window-get "image-mode")
(declare-function image-scroll-up "image-mode")
(declare-function nov-render-document "ext:nov")
(declare-function org-attach-dir "org-attach")
(declare-function org-attach-file-list "org-attach")
(declare-function pdf-info-getannots "ext:pdf-info")
(declare-function pdf-info-gettext "ext:pdf-info")
(declare-function pdf-info-outline "ext:pdf-info")
(declare-function pdf-info-pagelinks "ext:pdf-info")
(declare-function pdf-util-tooltip-arrow "ext:pdf-util")
(declare-function pdf-view-active-region "ext:pdf-view")
(declare-function pdf-view-active-region-p "ext:pdf-view")
(declare-function pdf-view-active-region-text "ext:pdf-view")
(declare-function pdf-view-goto-page "ext:pdf-view")
(declare-function pdf-view-mode "ext:pdf-view")
(defvar nov-documents-index)
(defvar nov-file-name)
;; --------------------------------------------------------------------------------
;; NOTE(nox): User variables
(defgroup org-noter nil
"A synchronized, external annotator"
:group 'convenience
:version "25.3.1")
(defcustom org-noter-property-doc-file "NOTER_DOCUMENT"
"Name of the property that specifies the document."
:group 'org-noter
:type 'string)
(defcustom org-noter-property-note-location "NOTER_PAGE"
"Name of the property that specifies the location of the current note.
The default value is still NOTER_PAGE for backwards compatibility."
:group 'org-noter
:type 'string)
(defcustom org-noter-default-heading-title "Notes for page $p$"
"The default title for headings created with `org-noter-insert-note'.
$p$ is replaced with the number of the page or chapter you are in
at the moment."
:group 'org-noter
:type 'string)
(defcustom org-noter-notes-window-behavior '(start scroll)
"This setting specifies in what situations the notes window should be created.
When the list contains:
- `start', the window will be created when starting a `org-noter' session.
- `scroll', it will be created when you go to a location with an associated note.
- `only-prev', it will be created when you go to a location without notes, but that
has previous notes that are shown."
:group 'org-noter
:type '(set (const :tag "Session start" start)
(const :tag "Scroll to location with notes" scroll)
(const :tag "Scroll to location with previous notes only" only-prev)))
(defcustom org-noter-notes-window-location 'horizontal-split
"Whether the notes should appear in the main frame (horizontal or vertical split) or in a separate frame.
Note that this will only have effect on session startup if `start'
is member of `org-noter-notes-window-behavior' (which see)."
:group 'org-noter
:type '(choice (const :tag "Horizontal" horizontal-split)
(const :tag "Vertical" vertical-split)
(const :tag "Other frame" other-frame)))
(define-obsolete-variable-alias 'org-noter-doc-split-percentage 'org-noter-doc-split-fraction "1.2.0")
(defcustom org-noter-doc-split-fraction '(0.5 . 0.5)
"Fraction of the frame that the document window will occupy when split.
This is a cons of the type (HORIZONTAL-FRACTION . VERTICAL-FRACTION)."
:group 'org-noter
:type '(cons (number :tag "Horizontal fraction") (number :tag "Vertical fraction")))
(defcustom org-noter-auto-save-last-location nil
"When non-nil, save the last visited location automatically; when starting a new session, go to that location."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-hide-other t
"When non-nil, hide all headings not related to the command used.
For example, when scrolling to pages with notes, collapse all the
notes that are not annotating the current page."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-always-create-frame t
"When non-nil, org-noter will always create a new frame for the session.
When nil, it will use the selected frame if it does not belong to any other session."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-suggest-from-attachments t
"When non-nil, org-noter will suggest files from the attachments
when creating a session, if the document is missing."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-separate-notes-from-heading nil
"When non-nil, add an empty line between each note's heading and content."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-insert-selected-text-inside-note t
"When non-nil, it will automatically append the selected text into an existing note."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-closest-tipping-point 0.3
"Defines when to show the closest previous note.
Let x be (this value)*100. The following schematic represents the
view (eg. a page of a PDF):
+----+
| | -> If there are notes in here, the closest previous note is not shown
+----+--> Tipping point, at x% of the view
| | -> When _all_ notes are in here, below the tipping point, the closest
| | previous note will be shown.
+----+
When this value is negative, disable this feature.
This setting may be overridden in a document with the function
`org-noter-set-closest-tipping-point', which see."
:group 'org-noter
:type 'number)
(defcustom org-noter-default-notes-file-names '("Notes.org")
"List of possible names for the default notes file, in increasing order of priority."
:group 'org-noter
:type '(repeat string))
(defcustom org-noter-notes-search-path '("~/Documents")
"List of paths to check (non recursively) when searching for a notes file."
:group 'org-noter
:type '(repeat string))
(defcustom org-noter-arrow-delay 0.2
"Number of seconds from when the command was invoked until the tooltip arrow appears.
When set to a negative number, the arrow tooltip is disabled.
This is needed in order to keep Emacs from hanging when doing many syncs."
:group 'org-noter
:type 'number)
(defcustom org-noter-doc-property-in-notes nil
"If non-nil, every new note will have the document property too.
This makes moving notes out of the root heading easier."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-insert-note-no-questions nil
"When non-nil, `org-noter-insert-note' won't ask for a title and will always insert a new note.
The title used will be the default one."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-kill-frame-at-session-end t
"If non-nil, `org-noter-kill-session' will delete the frame if others exist on the current display.'"
:group 'org-noter
:type 'boolean)
(defcustom org-noter-insert-heading-hook nil
"Hook being run after inserting a new heading."
:group 'org-noter
:type 'hook)
(defface org-noter-no-notes-exist-face
'((t
:foreground "chocolate"
:weight bold))
"Face for modeline note count, when 0."
:group 'org-noter)
(defface org-noter-notes-exist-face
'((t
:foreground "SpringGreen"
:weight bold))
"Face for modeline note count, when not 0."
:group 'org-noter)
;; --------------------------------------------------------------------------------
;; NOTE(nox): Integration with other packages
(defcustom org-noter--check-location-property-hook nil
"TODO"
:group 'org-noter
:type 'hook)
(defcustom org-noter--parse-location-property-hook nil
"TODO"
:group 'org-noter
:type 'hook)
(defcustom org-noter--pretty-print-location-hook nil
"TODO"
:group 'org-noter
:type 'hook)
(defcustom org-noter--convert-to-location-cons-hook nil
"TODO"
:group 'org-noter
:type 'hook)
(defcustom org-noter--doc-goto-location-hook nil
"TODO"
:group 'org-noter
:type 'hook)
(defcustom org-noter--note-after-tipping-point-hook nil
"TODO"
:group 'org-noter
:type 'hook)
(defcustom org-noter--relative-position-to-view-hook nil
"TODO"
:group 'org-noter
:type 'hook)
(defcustom org-noter--get-precise-info-hook nil
"TODO"
:group 'org-noter
:type 'hook)
(defcustom org-noter--doc-approx-location-hook nil
"TODO"
:group 'org-noter
:type 'hook)
;; --------------------------------------------------------------------------------
;; NOTE(nox): Private variables or constants
(cl-defstruct org-noter--session
id frame doc-buffer notes-buffer ast modified-tick doc-mode display-name notes-file-path property-text
level num-notes-in-view window-behavior window-location doc-split-fraction auto-save-last-location
hide-other closest-tipping-point)
(defvar org-noter--sessions nil
"List of `org-noter' sessions.")
(defvar-local org-noter--session nil
"Session associated with the current buffer.")
(defvar org-noter--inhibit-location-change-handler nil
"Prevent location change from updating point in notes.")
(defvar org-noter--start-location-override nil
"Used to open the session from the document in the right page.")
(defvar-local org-noter--nov-timer nil
"Timer for synchronizing notes after scrolling.")
(defvar org-noter--arrow-location nil
"A vector [TIMER WINDOW TOP] that shows where the arrow should appear, when idling.")
(defvar org-noter--completing-read-keymap (make-sparse-keymap)
"A `completing-read' keymap that let's the user insert spaces.")
(set-keymap-parent org-noter--completing-read-keymap minibuffer-local-completion-map)
(define-key org-noter--completing-read-keymap (kbd "SPC") 'self-insert-command)
(defconst org-noter--property-behavior "NOTER_NOTES_BEHAVIOR"
"Property for overriding global `org-noter-notes-window-behavior'.")
(defconst org-noter--property-location "NOTER_NOTES_LOCATION"
"Property for overriding global `org-noter-notes-window-location'.")
(defconst org-noter--property-doc-split-fraction "NOTER_DOCUMENT_SPLIT_FRACTION"
"Property for overriding global `org-noter-doc-split-fraction'.")
(defconst org-noter--property-auto-save-last-location "NOTER_AUTO_SAVE_LAST_LOCATION"
"Property for overriding global `org-noter-auto-save-last-location'.")
(defconst org-noter--property-hide-other "NOTER_HIDE_OTHER"
"Property for overriding global `org-noter-hide-other'.")
(defconst org-noter--property-closest-tipping-point "NOTER_CLOSEST_TIPPING_POINT"
"Property for overriding global `org-noter-closest-tipping-point'.")
(defconst org-noter--note-search-no-recurse (delete 'headline (append org-element-all-elements nil))
"List of elements that shouldn't be recursed into when searching for notes.")
(defconst org-noter--id-text-property 'org-noter-session-id
"Text property used to mark the headings with open sessions.")
;; --------------------------------------------------------------------------------
;; NOTE(nox): Utility functions
(defun org-noter--get-new-id ()
(catch 'break
(while t
(let ((id (random most-positive-fixnum)))
(unless (cl-loop for session in org-noter--sessions
when (= (org-noter--session-id session) id) return t)
(throw 'break id))))))
(defmacro org-noter--property-or-default (name)
(let ((function-name (intern (concat "org-noter--" (symbol-name name) "-property")))
(variable (intern (concat "org-noter-" (symbol-name name)))))
`(let ((prop-value (,function-name ast)))
(cond ((eq prop-value 'disable) nil)
(prop-value)
(t ,variable)))))
(defun org-noter--create-session (ast document-property-value notes-file-path)
(let* ((raw-value-not-empty (> (length (org-element-property :raw-value ast)) 0))
(display-name (if raw-value-not-empty
(org-element-property :raw-value ast)
(file-name-nondirectory document-property-value)))
(frame-name (format "Emacs Org-noter - %s" display-name))
(document (find-file-noselect document-property-value))
(document-path (expand-file-name document-property-value))
(document-major-mode (buffer-local-value 'major-mode document))
(document-buffer-name
(generate-new-buffer-name (concat (unless raw-value-not-empty "Org-noter: ") display-name)))
(document-buffer
(if (eq document-major-mode 'nov-mode)
document
(make-indirect-buffer document document-buffer-name t)))
(notes-buffer
(make-indirect-buffer
(or (buffer-base-buffer) (current-buffer))
(generate-new-buffer-name (concat "Notes of " display-name)) t))
(session
(make-org-noter--session
:id (org-noter--get-new-id)
:display-name display-name
:frame
(if (or org-noter-always-create-frame
(catch 'has-session
(dolist (test-session org-noter--sessions)
(when (eq (org-noter--session-frame test-session) (selected-frame))
(throw 'has-session t)))))
(make-frame `((name . ,frame-name) (fullscreen . maximized)))
(set-frame-parameter nil 'name frame-name)
(selected-frame))
:doc-mode document-major-mode
:property-text document-property-value
:notes-file-path notes-file-path
:doc-buffer document-buffer
:notes-buffer notes-buffer
:level (org-element-property :level ast)
:window-behavior (org-noter--property-or-default notes-window-behavior)
:window-location (org-noter--property-or-default notes-window-location)
:doc-split-fraction (org-noter--property-or-default doc-split-fraction)
:auto-save-last-location (org-noter--property-or-default auto-save-last-location)
:hide-other (org-noter--property-or-default hide-other)
:closest-tipping-point (org-noter--property-or-default closest-tipping-point)
:modified-tick -1))
(target-location org-noter--start-location-override)
(starting-point (point)))
(add-hook 'delete-frame-functions 'org-noter--handle-delete-frame)
(push session org-noter--sessions)
(with-current-buffer document-buffer
(cond
;; NOTE(nox): PDF Tools
((eq document-major-mode 'pdf-view-mode)
(setq buffer-file-name document-path)
(pdf-view-mode)
;; (add-hook 'pdf-view-after-change-page-hook 'org-noter--doc-location-change-handler nil t)
)
;; NOTE(nox): DocView
((eq document-major-mode 'doc-view-mode)
(setq buffer-file-name document-path)
(doc-view-mode)
(advice-add 'doc-view-goto-page :after 'org-noter--location-change-advice))
;; NOTE(nox): Nov.el
((eq document-major-mode 'nov-mode)
(rename-buffer document-buffer-name)
(advice-add 'nov-render-document :after 'org-noter--nov-scroll-handler)
(add-hook 'window-scroll-functions 'org-noter--nov-scroll-handler nil t))
(t (error "This document handler is not supported :/")))
(org-noter-doc-mode 1)
(setq org-noter--session session)
(add-hook 'kill-buffer-hook 'org-noter--handle-kill-buffer nil t))
(with-current-buffer notes-buffer
(org-noter-notes-mode 1)
;; NOTE(nox): This is needed because a session created in an indirect buffer would use the point of
;; the base buffer (as this buffer is indirect to the base!)
(goto-char starting-point)
(setq buffer-file-name notes-file-path
org-noter--session session
fringe-indicator-alist '((truncation . nil)))
(add-hook 'kill-buffer-hook 'org-noter--handle-kill-buffer nil t)
(add-hook 'window-scroll-functions 'org-noter--set-notes-scroll nil t)
(org-noter--set-text-properties (org-noter--parse-root (vector notes-buffer document-property-value))
(org-noter--session-id session))
(unless target-location
(setq target-location (org-noter--parse-location-property (org-noter--get-containing-heading t)))))
(org-noter--setup-windows session)
;; NOTE(nox): This timer is for preventing reflowing too soon.
(run-with-idle-timer
0.05 nil
(lambda ()
(with-current-buffer document-buffer
(let ((org-noter--inhibit-location-change-handler t))
(when target-location (org-noter--doc-goto-location target-location)))
(org-noter--doc-location-change-handler))))))
(defun org-noter--valid-session (session)
(when session
(if (and (frame-live-p (org-noter--session-frame session))
(buffer-live-p (org-noter--session-doc-buffer session))
(buffer-live-p (org-noter--session-notes-buffer session)))
t
(org-noter-kill-session session)
nil)))
(defmacro org-noter--with-valid-session (&rest body)
(declare (debug (body)))
`(let ((session org-noter--session))
(when (org-noter--valid-session session)
(progn ,@body))))
(defun org-noter--handle-kill-buffer ()
(org-noter--with-valid-session
(let ((buffer (current-buffer))
(notes-buffer (org-noter--session-notes-buffer session))
(doc-buffer (org-noter--session-doc-buffer session)))
;; NOTE(nox): This needs to be checked in order to prevent session killing because of
;; temporary buffers with the same local variables
(when (or (eq buffer notes-buffer)
(eq buffer doc-buffer))
(org-noter-kill-session session)))))
(defun org-noter--handle-delete-frame (frame)
(dolist (session org-noter--sessions)
(when (eq (org-noter--session-frame session) frame)
(org-noter-kill-session session))))
(defun org-noter--parse-root (&optional info)
"Parse and return the root AST.
When used, the INFO argument may be an org-noter session or a vector [NotesBuffer PropertyText].
If nil, the session used will be `org-noter--session'."
(let* ((arg-is-session (org-noter--session-p info))
(session (or (and arg-is-session info) org-noter--session))
root-pos ast)
(cond
((and (not arg-is-session) (vectorp info))
;; NOTE(nox): Use arguments to find heading, by trying to find the outermost parent heading with
;; the specified property
(let ((notes-buffer (aref info 0))
(wanted-prop (aref info 1)))
(unless (and (buffer-live-p notes-buffer) (stringp wanted-prop)
(eq (buffer-local-value 'major-mode notes-buffer) 'org-mode))
(error "Error parsing root with invalid arguments"))
(with-current-buffer notes-buffer
(org-with-wide-buffer
(catch 'break
(org-back-to-heading t)
(while t
(when (string= (org-entry-get nil org-noter-property-doc-file) wanted-prop)
(setq root-pos (copy-marker (point))))
(unless (org-up-heading-safe) (throw 'break t))))))))
((org-noter--valid-session session)
;; NOTE(nox): Use session to find heading
(or (and (= (buffer-chars-modified-tick (org-noter--session-notes-buffer session))
(org-noter--session-modified-tick session))
(setq ast (org-noter--session-ast session))) ; NOTE(nox): Cached version!
;; NOTE(nox): Find session id text property
(with-current-buffer (org-noter--session-notes-buffer session)
(org-with-wide-buffer
(let ((pos (text-property-any (point-min) (point-max) org-noter--id-text-property
(org-noter--session-id session))))
(when pos (setq root-pos (copy-marker pos)))))))))
(unless ast
(unless root-pos (error "Root heading not found"))
(with-current-buffer (marker-buffer root-pos)
(org-with-wide-buffer
(goto-char (marker-position root-pos))
(org-narrow-to-subtree)
(setq ast (car (org-element-contents (org-element-parse-buffer 'greater-element))))
(when (and (not (vectorp info)) (org-noter--valid-session session))
(setf (org-noter--session-ast session) ast
(org-noter--session-modified-tick session) (buffer-chars-modified-tick))))))
ast))
(defun org-noter--get-properties-end (ast &optional force-trim)
(when ast
(let* ((contents (org-element-contents ast))
(section (org-element-map contents 'section 'identity nil t 'headline))
(properties (org-element-map section 'property-drawer 'identity nil t))
properties-end)
(if (not properties)
(org-element-property :contents-begin ast)
(setq properties-end (org-element-property :end properties))
(when (or force-trim
(= (org-element-property :end section) properties-end))
(while (not (eq (char-before properties-end) ?:))
(setq properties-end (1- properties-end))))
properties-end))))
(defun org-noter--set-text-properties (ast id)
(org-with-wide-buffer
(when ast
(let* ((level (org-element-property :level ast))
(begin (org-element-property :begin ast))
(title-begin (+ 1 level begin))
(contents-begin (org-element-property :contents-begin ast))
(properties-end (org-noter--get-properties-end ast t))
(inhibit-read-only t)
(modified (buffer-modified-p)))
(add-text-properties (max 1 (1- begin)) begin '(read-only t))
(add-text-properties begin (1- title-begin) `(read-only t front-sticky t ,org-noter--id-text-property ,id))
(add-text-properties (1- title-begin) title-begin '(read-only t rear-nonsticky t))
(add-text-properties (1- contents-begin) (1- properties-end) '(read-only t))
(add-text-properties (1- properties-end) properties-end
'(read-only t rear-nonsticky t))
(set-buffer-modified-p modified)))))
(defun org-noter--unset-text-properties (ast)
(when ast
(org-with-wide-buffer
(let* ((begin (org-element-property :begin ast))
(end (org-noter--get-properties-end ast t))
(inhibit-read-only t)
(modified (buffer-modified-p)))
(remove-list-of-text-properties (max 1 (1- begin)) end
`(read-only front-sticky rear-nonsticky ,org-noter--id-text-property))
(set-buffer-modified-p modified)))))
(defun org-noter--set-notes-scroll (window &rest ignored)
(when window
(with-selected-window window
(org-noter--with-valid-session
(let* ((level (org-noter--session-level session))
(goal (* (1- level) 2))
(current-scroll (window-hscroll)))
(when (and (bound-and-true-p org-indent-mode) (< current-scroll goal))
(scroll-right current-scroll)
(scroll-left goal t)))))))
(defun org-noter--insert-heading (level title &optional newlines-number location outline)
"Insert a new heading at LEVEL with TITLE.
The point will be at the start of the contents, after any
properties, by a margin of NEWLINES-NUMBER."
(setq newlines-number (or newlines-number 1))
(org-insert-heading nil t)
(let* ((initial-level (org-element-property :level (org-element-at-point)))
(changer (if (> level initial-level) 'org-do-demote 'org-do-promote))
(number-of-times (abs (- level initial-level))))
(dotimes (_ number-of-times) (funcall changer))
(if outline
(insert (format "%s :outline:" (org-trim (replace-regexp-in-string "\n" " " title))))
(insert (format "%s :annotation:" (org-trim (replace-regexp-in-string "\n" " " title))))
)
(org-end-of-subtree)
(unless (bolp) (insert "\n"))
(org-N-empty-lines-before-current (1- newlines-number))
(when location
(org-entry-put nil org-noter-property-note-location (org-noter--pretty-print-location location))
(when org-noter-doc-property-in-notes
(org-noter--with-valid-session
(org-entry-put nil org-noter-property-doc-file (org-noter--session-property-text session))
(org-entry-put nil org-noter--property-auto-save-last-location "nil"))))
(org-entry-put nil "ROAM_EXCLUDE" "t")
(run-hooks 'org-noter-insert-heading-hook)))
(defun org-noter--narrow-to-root (ast)
(when ast
(save-excursion
(goto-char (org-element-property :contents-begin ast))
(org-show-entry)
(org-narrow-to-subtree)
(org-cycle-hide-drawers 'all))))
(defun org-noter--get-doc-window ()
(org-noter--with-valid-session
(or (get-buffer-window (org-noter--session-doc-buffer session)
(org-noter--session-frame session))
(org-noter--setup-windows org-noter--session)
(get-buffer-window (org-noter--session-doc-buffer session)
(org-noter--session-frame session)))))
(defun org-noter--get-notes-window (&optional type)
(org-noter--with-valid-session
(let ((notes-buffer (org-noter--session-notes-buffer session))
(window-location (org-noter--session-window-location session))
(window-behavior (org-noter--session-window-behavior session))
notes-window)
(or (get-buffer-window notes-buffer t)
(when (or (eq type 'force) (memq type window-behavior))
(if (eq window-location 'other-frame)
(let ((restore-frame (selected-frame)))
(switch-to-buffer-other-frame notes-buffer)
(setq notes-window (get-buffer-window notes-buffer t))
(x-focus-frame restore-frame)
(raise-frame (window-frame notes-window)))
(with-selected-window (org-noter--get-doc-window)
(let ((horizontal (eq window-location 'horizontal-split)))
(setq
notes-window
(if (window-combined-p nil horizontal)
;; NOTE(nox): Reuse already existent window
(let ((sibling-window (or (window-next-sibling) (window-prev-sibling))))
(or (window-top-child sibling-window) (window-left-child sibling-window)
sibling-window))
(if horizontal
(split-window-right (ceiling (* (car (org-noter--session-doc-split-fraction session))
(window-total-width))))
(split-window-below (ceiling (* (cdr (org-noter--session-doc-split-fraction session))
(window-total-height)))))))))
(set-window-buffer notes-window notes-buffer))
notes-window)))))
(defun org-noter--setup-windows (session)
"Setup windows when starting session, respecting user configuration."
(when (org-noter--valid-session session)
(with-selected-frame (org-noter--session-frame session)
(delete-other-windows)
(let* ((doc-buffer (org-noter--session-doc-buffer session))
(doc-window (selected-window))
(notes-buffer (org-noter--session-notes-buffer session))
notes-window)
(set-window-buffer doc-window doc-buffer)
(set-window-dedicated-p doc-window t)
(with-current-buffer notes-buffer
(org-noter--narrow-to-root (org-noter--parse-root session))
(setq notes-window (org-noter--get-notes-window 'start))
(org-noter--set-notes-scroll notes-window))))))
(defmacro org-noter--with-selected-notes-window (error-str &rest body)
(declare (debug ([&optional stringp] body)))
(let ((with-error (stringp error-str)))
`(org-noter--with-valid-session
(let ((notes-window (org-noter--get-notes-window)))
(if notes-window
(with-selected-window notes-window
,(if with-error
`(progn ,@body)
(if body
`(progn ,error-str ,@body)
`(progn ,error-str))))
,(when with-error `(user-error "%s" ,error-str)))))))
(defun org-noter--notes-window-behavior-property (ast)
(let ((property (org-element-property (intern (concat ":" org-noter--property-behavior)) ast))
value)
(when (and (stringp property) (> (length property) 0))
(setq value (car (read-from-string property)))
(when (listp value) value))))
(defun org-noter--notes-window-location-property (ast)
(let ((property (org-element-property (intern (concat ":" org-noter--property-location)) ast))
value)
(when (and (stringp property) (> (length property) 0))
(setq value (intern property))
(when (memq value '(horizontal-split vertical-split other-frame)) value))))
(defun org-noter--doc-split-fraction-property (ast)
(let ((property (org-element-property (intern (concat ":" org-noter--property-doc-split-fraction)) ast))
value)
(when (and (stringp property) (> (length property) 0))
(setq value (car (read-from-string property)))
(when (consp value) value))))
(defun org-noter--auto-save-last-location-property (ast)
(let ((property (org-element-property (intern (concat ":" org-noter--property-auto-save-last-location)) ast)))
(when (and (stringp property) (> (length property) 0))
(if (intern property) t 'disable))))
(defun org-noter--hide-other-property (ast)
(let ((property (org-element-property (intern (concat ":" org-noter--property-hide-other)) ast)))
(when (and (stringp property) (> (length property) 0))
(if (intern property) t 'disable))))
(defun org-noter--closest-tipping-point-property (ast)
(let ((property (org-element-property (intern (concat ":" org-noter--property-closest-tipping-point)) ast)))
(when (and (stringp property) (> (length property) 0))
(ignore-errors (string-to-number property)))))
(defun org-noter--doc-approx-location-cons (&optional precise-info)
(cond
((memq major-mode '(doc-view-mode pdf-view-mode))
(cons (image-mode-window-get 'page) (if (numberp precise-info) precise-info 0)))
((eq major-mode 'nov-mode)
(cons nov-documents-index (if (integerp precise-info)
precise-info
(max 1 (/ (+ (window-start) (window-end nil t)) 2)))))
(t (error "Unknown document type %s" major-mode))))
(defun org-noter--doc-approx-location (&optional precise-info force-new-ref)
(let ((window (if (org-noter--valid-session org-noter--session)
(org-noter--get-doc-window)
(selected-window))))
(cl-assert window)
(with-selected-window window
(or (run-hook-with-args-until-success 'org-noter--doc-approx-location-hook major-mode
precise-info force-new-ref)
(org-noter--doc-approx-location-cons precise-info)))))
(defun org-noter--location-change-advice (&rest _)
(org-noter--with-valid-session (org-noter--doc-location-change-handler)))
(defun org-noter--nov-scroll-handler (&rest _)
(when org-noter--nov-timer (cancel-timer org-noter--nov-timer))
(unless org-noter--inhibit-location-change-handler
(setq org-noter--nov-timer (run-with-timer 0.25 nil 'org-noter--doc-location-change-handler))))
(defsubst org-noter--doc-file-property (headline)
(org-element-property (intern (concat ":" org-noter-property-doc-file)) headline))
(defun org-noter--check-location-property (arg)
(let ((property (if (stringp arg) arg
(org-element-property (intern (concat ":" org-noter-property-note-location)) arg))))
(when (and (stringp property) (> (length property) 0))
(or (run-hook-with-args-until-success 'org-noter--check-location-property-hook property)
(let ((value (car (read-from-string property))))
(or (and (consp value) (integerp (car value)) (numberp (cdr value)))
(integerp value)))))))
(defun org-noter--parse-location-property (arg)
(let ((property (if (stringp arg) arg
(org-element-property (intern (concat ":" org-noter-property-note-location)) arg))))
(when (and (stringp property) (> (length property) 0))
(or (run-hook-with-args-until-success 'org-noter--parse-location-property-hook property)
(let ((value (car (read-from-string property))))
(cond ((and (consp value) (integerp (car value)) (numberp (cdr value))) value)
((integerp value) (cons value 0))))))))
(defun org-noter--pretty-print-location (location)
(org-noter--with-valid-session
(or (run-hook-with-args-until-success 'org-noter--pretty-print-location-hook location)
(format "%s" (cond
((memq (org-noter--session-doc-mode session) '(doc-view-mode pdf-view-mode))
(if (or (not (cdr location)) (<= (cdr location) 0))
(car location)
location))
((eq (org-noter--session-doc-mode session) 'nov-mode)
(if (or (not (cdr location)) (<= (cdr location) 1))
(car location)
location)))))))
(defun org-noter--get-containing-heading (&optional include-root)
"Get smallest containing heading that encloses the point and has location property.
If the point isn't inside any heading with location property, return the outer heading.
When INCLUDE-ROOT is non-nil, the root heading is also eligible to be returned."
(org-noter--with-valid-session
(org-with-wide-buffer
(unless (org-before-first-heading-p)
(org-back-to-heading t)
(let (previous)
(catch 'break
(while t
(let ((prop (org-noter--check-location-property (org-entry-get nil org-noter-property-note-location)))
(at-root (equal (org-noter--session-id session)
(get-text-property (point) org-noter--id-text-property)))
(heading (org-element-at-point)))
(when (and prop (or include-root (not at-root)))
(throw 'break heading))
(when (or at-root (not (org-up-heading-safe)))
(throw 'break (if include-root heading previous)))
(setq previous heading)))))))))
(defun org-noter--doc-get-page-slice ()
"Return (slice-top . slice-height)."
(let* ((slice (or (image-mode-window-get 'slice) '(0 0 1 1)))
(slice-top (float (nth 1 slice)))
(slice-height (float (nth 3 slice))))
(when (or (> slice-top 1)
(> slice-height 1))
(let ((height (cdr (image-size (image-mode-window-get 'image) t))))
(setq slice-top (/ slice-top height)
slice-height (/ slice-height height))))
(cons slice-top slice-height)))
(defun org-noter--conv-page-scroll-percentage (scroll)
(let* ((slice (org-noter--doc-get-page-slice))
(display-height (cdr (image-display-size (image-get-display-property))))
(display-percentage (/ scroll display-height))
(percentage (+ (car slice) (* (cdr slice) display-percentage))))
(max 0 (min 1 percentage))))
(defun org-noter--conv-page-percentage-scroll (percentage)
(let* ((slice (org-noter--doc-get-page-slice))
(display-height (cdr (image-display-size (image-get-display-property))))
(display-percentage (min 1 (max 0 (/ (- percentage (car slice)) (cdr slice)))))
(scroll (max 0 (floor (* display-percentage display-height)))))
scroll))
(defun org-noter--get-precise-info ()
(org-noter--with-valid-session
(let ((window (org-noter--get-doc-window))
(mode (org-noter--session-doc-mode session))
event)
(with-selected-window window
(cond
((run-hook-with-args-until-success 'org-noter--get-precise-info-hook mode))
((eq mode 'pdf-view-mode)
(if (pdf-view-active-region-p)
(cadar (pdf-view-active-region))
(while (not (and (eq 'mouse-1 (car event))
(eq window (posn-window (event-start event)))))
(setq event (read-event "Click where you want the start of the note to be!")))
(org-noter--conv-page-scroll-percentage (+ (window-vscroll)
(cdr (posn-col-row (event-start event)))))))
((eq mode 'doc-view-mode)
(while (not (and (eq 'mouse-1 (car event))
(eq window (posn-window (event-start event)))))
(setq event (read-event "Click where you want the start of the note to be!")))
(org-noter--conv-page-scroll-percentage (+ (window-vscroll)
(cdr (posn-col-row (event-start event))))))
((eq mode 'nov-mode)
(if (region-active-p)
(min (mark) (point))
(while (not (and (eq 'mouse-1 (car event))
(eq window (posn-window (event-start event)))))
(setq event (read-event "Click where you want the start of the note to be!")))
(posn-point (event-start event)))))))))
(defun org-noter--show-arrow ()
(when (and org-noter--arrow-location
(window-live-p (aref org-noter--arrow-location 1)))
(with-selected-window (aref org-noter--arrow-location 1)
(pdf-util-tooltip-arrow (aref org-noter--arrow-location 2))))
(setq org-noter--arrow-location nil))
(defun org-noter--doc-goto-location (location)
"Go to location specified by LOCATION."
(org-noter--with-valid-session
(let ((window (org-noter--get-doc-window))
(mode (org-noter--session-doc-mode session)))
(with-selected-window window
(cond
((run-hook-with-args-until-success 'org-noter--doc-goto-location-hook mode location))
((memq mode '(doc-view-mode pdf-view-mode))
(if (eq mode 'doc-view-mode)
(doc-view-goto-page (car location))
(pdf-view-goto-page (car location))
;; NOTE(nox): This timer is needed because the tooltip may introduce a delay,
;; so syncing multiple pages was slow
(when (>= org-noter-arrow-delay 0)
(when org-noter--arrow-location (cancel-timer (aref org-noter--arrow-location 0)))
(setq org-noter--arrow-location
(vector (run-with-idle-timer org-noter-arrow-delay nil 'org-noter--show-arrow)
window
(cdr location)))))
(image-scroll-up (- (org-noter--conv-page-percentage-scroll (cdr location))
(window-vscroll))))
((eq mode 'nov-mode)
(setq nov-documents-index (car location))
(nov-render-document)
(goto-char (cdr location))
(recenter)))
;; NOTE(nox): This needs to be here, because it would be issued anyway after
;; everything and would run org-noter--nov-scroll-handler.
(redisplay)))))
(defun org-noter--compare-location-cons (comp l1 l2)
"Compare L1 and L2, which are location cons.
See `org-noter--compare-locations'"
(cl-assert (and (consp l1) (consp l2)))
(cond ((eq comp '=)
(and (= (car l1) (car l2))
(= (cdr l1) (cdr l2))))
((eq comp '<)
(or (< (car l1) (car l2))
(and (= (car l1) (car l2))
(< (cdr l1) (cdr l2)))))
((eq comp '<=)
(or (< (car l1) (car l2))
(and (= (car l1) (car l2))
(<= (cdr l1) (cdr l2)))))
((eq comp '>)
(or (> (car l1) (car l2))
(and (= (car l1) (car l2))
(> (cdr l1) (cdr l2)))))
((eq comp '>=)
(or (> (car l1) (car l2))
(and (= (car l1) (car l2))
(>= (cdr l1) (cdr l2)))))
((eq comp '>f)
(or (> (car l1) (car l2))
(and (= (car l1) (car l2))
(< (cdr l1) (cdr l2)))))
(t (error "Comparison operator %s not known" comp))))
(defun org-noter--compare-locations (comp l1 l2)
"Compare L1 and L2.
When COMP is '<, '<=, '>, or '>=, it works as expected.
When COMP is '>f, it will return t when L1 is a page greater than
L2 or, when in the same page, if L1 is the _f_irst of the two."
(cond ((not l1) nil)
((not l2) t)
(t
(setq l1 (or (run-hook-with-args-until-success 'org-noter--convert-to-location-cons-hook l1) l1)
l2 (or (run-hook-with-args-until-success 'org-noter--convert-to-location-cons-hook l2) l2))
(org-noter--compare-location-cons comp l1 l2))))
(defun org-noter--show-note-entry (session note)
"This will show the note entry and its children.
Every direct subheading _until_ the first heading that doesn't
belong to the same view (ie. until a heading with location or
document property) will be opened."
(save-excursion
(goto-char (org-element-property :contents-begin note))
(org-show-set-visibility t)
(org-element-map (org-element-contents note) 'headline
(lambda (headline)
(let ((doc-file (org-noter--doc-file-property headline)))
(if (or (and doc-file (not (string= doc-file (org-noter--session-property-text session))))
(org-noter--check-location-property headline))
t
(goto-char (org-element-property :begin headline))
(org-show-entry)
(org-show-children)
nil)))
nil t org-element-all-elements)))
(defun org-noter--focus-notes-region (view-info)
(org-noter--with-selected-notes-window
(if (org-noter--session-hide-other session)
(save-excursion
(goto-char (org-element-property :begin (org-noter--parse-root)))
(outline-hide-subtree))
(org-cycle-hide-drawers 'all))
(let* ((notes-cons (org-noter--view-info-notes view-info))
(regions (or (org-noter--view-info-regions view-info)
(org-noter--view-info-prev-regions view-info)))
(point-before (point))
target-region
point-inside-target-region)
(cond
(notes-cons