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org-noter-core.el
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;;; org-noter-core.el --- Core functions of Org-noter -*- lexical-binding: t; -*-
;; Copyright (C) 2017-2019 Gonçalo Santos
;; Author: Gonçalo Santos (aka. weirdNox@GitHub)
;; 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/>.
;;; Code:
(require 'org)
(require 'org-element)
(require 'cl-lib)
(declare-function org-noter "org-noter")
(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 org-attach-dir "org-attach")
(declare-function org-attach-file-list "org-attach")
;; --------------------------------------------------------------------------------
;;; User variables
(defgroup org-noter nil
"A synchronized, external annotator."
:group 'convenience
:version "25.3.1")
(defgroup org-noter-layout nil
"Org-noter layout and visibility variables."
:group 'org-noter
:version "28.2")
(defgroup org-noter-navigation nil
"Org-noter navigation and display variables."
:group 'org-noter
:version "28.2")
(defgroup org-noter-insertion nil
"Org-noter note-insertion variables."
:group 'org-noter
:version "28.2")
(defcustom org-noter-supported-modes '(doc-view-mode pdf-view-mode nov-mode djvu-read-mode)
"Major modes that are supported by org-noter."
:group 'org-noter
:type '(repeat symbol))
(defvar org-noter--doc-extensions nil
"List of extensions handled by org-noter when documents are moved.
Used by `org-noter--update-doc-rename-in-notes'. This variable
gets filled in by supported modes, so it is not a `defcustom'
variable.")
(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-insertion
:type 'string)
(defcustom org-noter-notes-window-behavior '(start scroll)
"Specifies situations for which the notes window is created.
When the list contains:
- `start', the notes window will be created when starting an
`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
"The default document/notes window layout.
Options are: \"Horizontal\", \"Vertical\", or \"Other 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-layout
: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-layout
:type '(cons (number :tag "Horizontal fraction") (number :tag "Vertical fraction")))
(defcustom org-noter-auto-save-last-location nil
"Option to save document location in notes file.
When non-nil, save the last visited location automatically; when
starting a new session, go to that location. When nil, sessions
start at the beginning of the document."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-prefer-root-as-file-level nil
"Option to preferentially use the file-level property drawer.
When non-nil, org-noter will always try to return the file-level
property drawer even when there are headings.
With the default value nil, org-noter will always use the first
heading as root when there is at least one heading."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-hide-other t
"Hide notes that are not linked to the current document page.
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-layout
:type 'boolean)
(defcustom org-noter-always-create-frame t
"Create a new frame for each document session.
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-disable-narrowing nil
"Disable narrowing in notes/org buffer."
:group 'org-noter-layout
:type 'boolean)
(defcustom org-noter-use-indirect-buffer t
"Use indirect buffer for notes.
When non-nil, org-noter will create an indirect buffer of the
calling org file as a note buffer of the session. When nil, it
will use the real buffer."
:group 'org-noter
:type 'boolean)
(defcustom org-noter-swap-window nil
"Swap the left/right or top/bottom layout of the doc and notes.
By default `org-noter' will make a session by setting the buffer
of the selected window to the document buffer then split with the
window of the notes buffer on the right.
If this variable is non-nil, the buffers of the two windows will
be the other way around."
:group 'org-noter-layout
:type 'boolean)
(defcustom org-noter-suggest-from-attachments t
"Suggest document files from attachments (in an Org file).
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-insertion
:type 'boolean)
(defcustom org-noter-insert-selected-text-inside-note t
"Option to append selected text to existing note.
When non-nil (default), it will automatically append the selected
text into an existing note.
When nil, selected text will not be appended to existing
note (not recommended)."
:group 'org-noter-insertion
: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-navigation
:type 'number)
(defcustom org-noter-default-notes-file-names '("Notes.org")
"List of possible names for the default notes file.
The list is 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
"Delay (in seconds) afte a sync before showing the tooltip arrow.
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-navigation
:type 'number)
(defcustom org-noter-arrow-horizontal-offset -20
"Horizontal offset of the tooltip arrow relative to a precise location.
Units are display pixels; positive values move the arrow to the
right, while negative values move it to the left. The intent is
to move the arrow so that it does not cover text of intereest,
but roundoff errors cause the arrow position still to be
dependent upon magnification at the 1-em level"
:group 'org-noter-navigation
:type 'number
:version "28.2")
(defcustom org-noter-arrow-foreground-color "orange red"
"Default color of the tooltip arrow."
:group 'org-noter-navigation
:type 'string
:version "28.2")
(defcustom org-noter-arrow-background-color "white"
"Default background color of the tooltip arrow."
:group 'org-noter-navigation
:type 'string
:version "28.2")
(defcustom org-noter-vscroll-buffer 5
"Minimum number of document display lines to leave above precise note.
Navigation will scroll precise notes to the top of the buffer. A
value of 0 places the precise note at the top of the window when
possible. A positive number leaves some context above the
precise note location."
:group 'org-noter-navigation
:type 'number
:version "28.2")
(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
"Do not prompt for a note title.
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 one of
defaults: the selected text (if it does not exceed
`org-noter-max-short-selected-text-length') or
`org-noter-default-heading-title'."
:group 'org-noter-insertion
:type 'boolean)
(defcustom org-noter-kill-frame-at-session-end t
"Close the frame when exiting a session.
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-insertion
:type 'hook)
(defcustom org-noter-create-session-from-document-hook '(org-noter--create-session-from-document-file-default)
"Hook that is invoked when `org-noter' is invoked from a document."
:group 'org-noter
:type 'hook)
(defcustom org-noter-highlight-selected-text nil
"Highlight selected text when creating notes.
If non-nil, highlight selected-text when creating notes. This
variable is temporarily toggled by prefixing the insertion
command with any non-nil prefix such as \\[universal-argument]."
:group 'org-noter-insertion
:type 'boolean
:version "28.2")
(defcustom org-noter-max-short-selected-text-length 80
"Maximum length of a short text selection.
Short text selections are the primary default note title. When
they are quoted in the note, they are quoted as
``short-selected-text'' rather than inside a QUOTE-block."
:group 'org-noter-insertion
:type 'integer
:version "28.2")
(defcustom org-noter-find-additional-notes-functions nil
"List of functions that map a document to an Org-noter filepath.
The functions in this list must accept 1 argument, a file name.
The argument will be given by `org-noter'.
The return value must be a path to an org file. No matter if
it's an absolute or relative path, the file name will be expanded
to each directory set in `org-noter-notes-search-path' to test if
it exists.
If it exists, it will be listed as a candidate that `org-noter'
will have the user select to use as the note file of the
document."
:group 'org-noter
:type 'hook
:version "28.2")
(defcustom org-noter-headline-title-decoration ""
"Decoration (emphasis) for the headline title string.
If you use the Org STARTUP option \"entitiespretty\", filenames
with underscores will end up looking ugly. This string is
prepended and appended to the document title in the top-level
headline, making it look nicer.
Reasonable choices are: /, *, =, ~, _
With \"/\", \"The_Title\" would become \"/The_Title/\"."
:group 'org-noter
:type 'string
:version "28.2")
(defface org-noter-no-notes-exist-face
'((t
:foreground "chocolate"
:weight bold))
"Face for modeline note count, when 0."
:group 'org-noter-navigation)
(defface org-noter-notes-exist-face
'((t
:foreground "SpringGreen"
:weight bold))
"Face for modeline note count, when not 0."
:group 'org-noter-navigation)
;; --------------------------------------------------------------------------------
;;; Integration with other packages
(defgroup org-noter-module-hooks nil
"Hooks for integrating org-noter with other packages (pdfview, nov, djvu)."
:group 'org-noter
:version "28.2")
(defcustom org-noter--get-location-property-hook nil
"The list of functions that will return the note location of an org element.
These functions must accept one argument, an org element.
These functions is used by `org-noter--parse-location-property' and
`org-noter--check-location-property' when they can't find the note location
of the org element given to them, that org element will be passed to
the functions in this list."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--get-containing-element-hook '(org-noter--get-containing-heading
org-noter--get-containing-property-drawer)
"List of functions that return the Org element of a note.
These functions will be called by
`org-noter--get-containing-element' to get the Org element of the
note at point."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter-parse-document-property-hook nil
"The list of functions that parse NOTER_DOCUMENT for a filename.
Or whatever the property `org-noter-property-doc-file' is set to.
This is used by `org-noter--get-or-read-document-property' and
`org-noter--doc-file-property'.
This is added for integration with other packages.
For example, the module `org-noter-citar' adds the function
`org-noter-citar-find-document-from-refs' to this list which when
the property \"NOTER_DOCUMENT\" (the default value of
`org-noter-property-doc-file') of an org file passed to it is a
citation key, it will return the path to the note file associated
with the citation key and that path will be used for other
operations instead of the real value of the property."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter-get-buffer-file-name-hook nil
"Functions that when passed a major mode, return the current buffer file name.
This is used by the `org-noter' command to determine the file name when
user calls `org-noter' on a document buffer.
For example, `nov-mode', a renderer for EPUB documents uses a unique variable
called `nov-file-name' to store the file name of its document while the other
major modes use the variable `buffer-file-name'."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter-set-up-document-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter-get-selected-text-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--check-location-property-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--parse-location-property-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--pretty-print-location-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--pretty-print-location-for-title-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--convert-to-location-cons-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--doc-goto-location-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--pretty-print-highlight-location-hook nil
"Hook that serializes a highlight location so that it can be stored in org."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--get-highlight-location-hook nil
"Hook that runs to get the location of a highlight."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--add-highlight-hook nil
"Hook called to highlight selected text when creating notes.
When a note is created this will be given `MAJOR-MODE' and
`PRECISE-INFO'. For example, this hook can be used in pdf-mode
to add a permanent highlight to the document."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--note-after-tipping-point-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--relative-position-to-view-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--get-precise-info-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--get-current-view-hook nil
"TODO."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--doc-approx-location-hook nil
"This returns an approximate location if no precise info is passed: (PAGE 0)
or if precise info is passed, it's (PAGE V . H)."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter-create-skeleton-functions nil
"List of functions that convert document outline into noter headlines.
The functions will be given a major mode of the document and must
return a non-nil value when the outline is created.
Used by `org-noter-create-skeleton'."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter-open-document-functions nil
"Functions that gives a buffer when passed with a document property.
Used by `org-noter--create-session' when creating a new session."
:group 'org-noter-module-hooks
:type 'hook)
(defcustom org-noter--show-arrow-hook nil
"List of functions that show precise note location in document.
For example, see `org-noter-pdf--show-arrow'."
:group 'org-noter-module-hooks
:type 'hook)
;; --------------------------------------------------------------------------------
;;; 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 org-noter--arrow-location nil
"A vector that shows where the arrow should appear, when idling.
Format: [TIMER WINDOW TOP LEFT]")
(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--note-search-element-type '(headline)
"List of elements that should be searched for notes.")
(defconst org-noter--id-text-property 'org-noter-session-id
"Text property used to mark the headings with open sessions.")
(defvar org-noter--url-regexp
(concat
"\\b\\(\\(www\\.\\|\\(s?https?\\|ftp\\|file\\|gopher\\|"
"nntp\\|news\\|telnet\\|wais\\|mailto\\|info\\):\\)"
"\\(//[-a-z0-9_.]+:[0-9]*\\)?"
(let ((chars "-a-z0-9_=#$@~%&*+\\/[:word:]")
(punct "!?:;.,"))
(concat
"\\(?:"
;; Match paired parentheses, e.g. in Wikipedia URLs:
;; http://thread.gmane.org/47B4E3B2.3050402@gmail.com
"[" chars punct "]+" "(" "[" chars punct "]+" ")"
"\\(?:" "[" chars punct "]+" "[" chars "]" "\\)?"
"\\|"
"[" chars punct "]+" "[" chars "]"
"\\)"))
"\\)")
"Regular expression that matches URLs.")
(defvar org-noter--no-sessions-remove-advice-hooks nil
"List of functions to remove advice when all sessions are closed.")
;; --------------------------------------------------------------------------------
;;; Utility functions
(defun org-noter--no-heading-p ()
"Return nil if the current buffer has atleast one heading.
Otherwise return the maximum value for point."
(save-excursion
(and (org-before-first-heading-p) (org-next-visible-heading 1))))
(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-parse-link (s)
(pcase (with-temp-buffer
(let ((org-inhibit-startup nil))
(insert s)
(org-mode)
(goto-char (point-min))
(org-element-link-parser)))
(`nil nil)
(link link)))
(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))
(link-p (or (string-match-p org-link-bracket-re document-property-value)
(string-match-p org-noter--url-regexp document-property-value)))
(display-name (if raw-value-not-empty
(org-element-property :raw-value ast)
(if link-p
document-property-value
(file-name-nondirectory document-property-value))))
(frame-name (format "Emacs Org-noter - %s" display-name))
(document (or (run-hook-with-args-until-success 'org-noter-open-document-functions document-property-value)
(if link-p
(progn (org-link-open-from-string document-property-value)
(current-buffer))
(find-file-noselect document-property-value))))
(document-major-mode (if (or link-p (eq document (current-buffer)))
document-property-value
(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 document)
(notes-buffer
(progn (when (and org-window-config-before-follow-link link-p)
(set-window-configuration org-window-config-before-follow-link))
(if org-noter-use-indirect-buffer
(make-indirect-buffer
(or (buffer-base-buffer)
(current-buffer))
(generate-new-buffer-name (concat "Notes of " display-name)) t)
(current-buffer))))
(single (eq (or (buffer-base-buffer document-buffer)
document-buffer)
(or (buffer-base-buffer notes-buffer)
notes-buffer)))
(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 (or (org-element-property :level ast) 0)
: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
(or (run-hook-with-args-until-success 'org-noter-set-up-document-hook document-major-mode)
(run-hook-with-args-until-success 'org-noter-set-up-document-hook document-property-value)
(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-element t)))))
;; NOTE(nox): This timer is for preventing reflowing too soon.
(unless single
(run-with-idle-timer
0.05 nil
(lambda ()
;; NOTE(ahmed-shariff): setup-window run here to avoid crash when notes buffer not setup in time
(org-noter--setup-windows session)
(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)
`(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) (or (stringp wanted-prop)
(eq 'link (org-element-type 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
(while t
(let ((document-property (org-entry-get nil org-noter-property-doc-file t)))
(when (string= (or (run-hook-with-args-until-success 'org-noter-parse-document-property-hook document-property)
document-property)
wanted-prop)
(setq root-pos (copy-marker (if (and org-noter-prefer-root-as-file-level
(save-excursion
(goto-char (point-min))
(eq 'property-drawer (org-element-type (org-element-at-point)))))
(point-min)
(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 (if (or org-noter-prefer-root-as-file-level (org-noter--no-heading-p))
(setq root-pos (copy-marker (point-min)))
(org-next-visible-heading 1)
(setq root-pos (copy-marker (point)))))
(with-current-buffer (marker-buffer root-pos)
(org-with-point-at (marker-position root-pos)
(org-back-to-heading-or-point-min t)
(if (org-at-heading-p)
(org-narrow-to-subtree)
(org-hide-drawer-toggle 'force))
(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 (or (org-element-map section 'property-drawer 'identity nil t)
(org-element-map contents '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 (or (org-element-property :level ast) 0))
(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)))
(if (= level 0)
(when properties-end
(add-text-properties contents-begin properties-end
`(read-only t rear-nonsticky t ,org-noter--id-text-property ,id))
(set-buffer-modified-p modified))
(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))
(when properties-end
(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)))
(when end
(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)
"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.
When LOCATION is provded, it is written into the property drawer
of the heading under `org-noter-property-note-location' (default:
NOTER_PAGE)."
(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))
(insert (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"))))
(run-hooks 'org-noter-insert-heading-hook)))
(defun org-noter--narrow-to-root (ast)
(when (and ast (not (org-noter--no-heading-p)))
(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)
"Conjure the notes-window from the void."
(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--relocate-notes-window (notes-buffer)