2022-01-15 01:34:49 -05:00
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;;; org-cycle.el --- Visibility cycling of Org entries -*- lexical-binding: t; -*-
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;;
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2024-01-01 20:47:10 -05:00
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;; Copyright (C) 2020-2024 Free Software Foundation, Inc.
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2022-01-15 01:34:49 -05:00
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;;
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2023-07-03 04:08:49 -04:00
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;; Maintainer: Ihor Radchenko <yantar92 at posteo dot net>
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2022-01-15 01:34:49 -05:00
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;; Keywords: folding, visibility cycling, invisible text
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2021-09-26 03:44:29 -04:00
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;; URL: https://orgmode.org
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2022-01-15 01:34:49 -05:00
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;;
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;; This file is part of GNU Emacs.
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;;
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Commentary:
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;; This file contains code controlling global folding state in buffer
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;; and TAB-cycling.
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;;; Code:
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2022-08-04 09:53:05 -04:00
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(require 'org-macs)
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(org-assert-version)
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2022-01-15 01:34:49 -05:00
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(require 'org-macs)
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(require 'org-fold)
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2023-05-16 06:41:53 -04:00
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(declare-function org-element-type-p "org-element-ast" (node types))
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(declare-function org-element-property "org-element-ast" (property node))
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2023-05-03 10:26:41 -04:00
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(declare-function org-element-post-affiliated "org-element" (node))
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2023-05-16 06:41:53 -04:00
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(declare-function org-element-lineage "org-element-ast" (datum &optional types with-self))
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2022-01-15 01:34:49 -05:00
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(declare-function org-element-at-point "org-element" (&optional pom cached-only))
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2022-10-29 15:15:29 -04:00
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(declare-function org-display-inline-images "org" (&optional include-linked refresh beg end))
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2022-01-15 01:34:49 -05:00
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(declare-function org-get-tags "org" (&optional pos local fontify))
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(declare-function org-subtree-end-visible-p "org" ())
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(declare-function org-narrow-to-subtree "org" (&optional element))
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2022-10-29 15:15:29 -04:00
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(declare-function org-next-visible-heading "org" (arg))
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2022-01-15 01:34:49 -05:00
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(declare-function org-at-property-p "org" ())
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(declare-function org-re-property "org" (property &optional literal allow-null value))
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2022-10-29 15:15:29 -04:00
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(declare-function org-remove-inline-images "org" (&optional beg end))
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2022-01-15 01:34:49 -05:00
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(declare-function org-item-beginning-re "org" ())
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(declare-function org-at-heading-p "org" (&optional invisible-not-ok))
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(declare-function org-at-item-p "org" ())
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(declare-function org-before-first-heading-p "org" ())
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(declare-function org-back-to-heading "org" (&optional invisible-ok))
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(declare-function org-end-of-subtree "org" (&optional invisible-ok to-heading))
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(declare-function org-entry-end-position "org" ())
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(declare-function org-try-cdlatex-tab "org" ())
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(declare-function org-cycle-level "org" ())
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(declare-function org-table-next-field "org-table" ())
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(declare-function org-table-justify-field-maybe "org-table" (&optional new))
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(declare-function org-inlinetask-at-task-p "org-inlinetask" ())
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(declare-function org-inlinetask-toggle-visibility "org-inlinetask" ())
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(declare-function org-list-get-all-items "org-list" (item struct prevs))
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(declare-function org-list-get-bottom-point "org-list" (struct))
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(declare-function org-list-prevs-alist "org-list" (struct))
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(declare-function org-list-set-item-visibility "org-list" (item struct view))
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(declare-function org-list-search-forward "org-list" (regexp &optional bound noerror))
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(declare-function org-list-has-child-p "org-list" (item struct))
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(declare-function org-list-get-item-end-before-blank "org-list" (item struct))
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(declare-function org-list-struct "org-list" ())
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(declare-function org-cycle-item-indentation "org-list" ())
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(declare-function outline-previous-heading "outline" ())
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(declare-function outline-next-heading "outline" ())
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(declare-function outline-end-of-heading "outline" ())
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(declare-function outline-up-heading "outline" (arg &optional invisible-ok))
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(defvar org-drawer-regexp)
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(defvar org-odd-levels-only)
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(defvar org-startup-folded)
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(defvar org-archive-tag)
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(defvar org-cycle-include-plain-lists)
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(defvar org-outline-regexp-bol)
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(defvar-local org-cycle-global-status nil)
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(put 'org-cycle-global-status 'org-state t)
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(defvar-local org-cycle-subtree-status nil)
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(put 'org-cycle-subtree-status 'org-state t)
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2022-11-30 10:59:41 -05:00
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;;;; Customization:
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2022-01-15 01:34:49 -05:00
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(defgroup org-cycle nil
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"Options concerning visibility cycling in Org mode."
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:tag "Org Cycle"
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:group 'org-structure)
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(defcustom org-cycle-skip-children-state-if-no-children t
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"Non-nil means skip CHILDREN state in entries that don't have any."
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:group 'org-cycle
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:type 'boolean)
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(defcustom org-cycle-max-level nil
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"Maximum level which should still be subject to visibility cycling.
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Levels higher than this will, for cycling, be treated as text, not a headline.
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When `org-odd-levels-only' is set, a value of N in this variable actually
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means 2N-1 stars as the limiting headline.
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When nil, cycle all levels.
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Note that the limiting level of cycling is also influenced by
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`org-inlinetask-min-level'. When `org-cycle-max-level' is not set but
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`org-inlinetask-min-level' is, cycling will be limited to levels one less
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than its value."
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:group 'org-cycle
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:type '(choice
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(const :tag "No limit" nil)
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(integer :tag "Maximum level")))
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(defcustom org-cycle-hide-block-startup nil
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"Non-nil means entering Org mode will fold all blocks.
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This can also be set in on a per-file basis with
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#+STARTUP: hideblocks
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2022-05-27 03:07:08 -04:00
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#+STARTUP: nohideblocks"
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2022-01-15 01:34:49 -05:00
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:group 'org-startup
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:group 'org-cycle
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:type 'boolean)
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2022-05-27 03:09:16 -04:00
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(defcustom org-cycle-hide-drawer-startup t
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"Non-nil means entering Org mode will fold all drawers.
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This can also be set in on a per-file basis with
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#+STARTUP: hidedrawers
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#+STARTUP: nohidedrawers"
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:group 'org-startup
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:group 'org-cycle
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:type 'boolean)
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2022-01-15 01:34:49 -05:00
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(defcustom org-cycle-global-at-bob nil
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"Cycle globally if cursor is at beginning of buffer and not at a headline.
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This makes it possible to do global cycling without having to use `S-TAB'
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or `\\[universal-argument] TAB'. For this special case to work, the first \
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line of the buffer
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must not be a headline -- it may be empty or some other text.
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When used in this way, `org-cycle-hook' is disabled temporarily to make
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sure the cursor stays at the beginning of the buffer.
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When this option is nil, don't do anything special at the beginning of
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the buffer."
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:group 'org-cycle
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:type 'boolean)
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(defcustom org-cycle-level-after-item/entry-creation t
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"Non-nil means cycle entry level or item indentation in new empty entries.
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When the cursor is at the end of an empty headline, i.e., with only stars
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and maybe a TODO keyword, TAB will then switch the entry to become a child,
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and then all possible ancestor states, before returning to the original state.
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This makes data entry extremely fast: M-RET to create a new headline,
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on TAB to make it a child, two or more tabs to make it a (grand-)uncle.
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When the cursor is at the end of an empty plain list item, one TAB will
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make it a subitem, two or more tabs will back up to make this an item
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higher up in the item hierarchy."
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:group 'org-cycle
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:type 'boolean)
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(defcustom org-cycle-emulate-tab t
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"Where should `org-cycle' emulate TAB.
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nil Never
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white Only in completely white lines
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whitestart Only at the beginning of lines, before the first non-white char
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t Everywhere except in headlines
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exc-hl-bol Everywhere except at the start of a headline
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If TAB is used in a place where it does not emulate TAB, the current subtree
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visibility is cycled."
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:group 'org-cycle
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:type '(choice (const :tag "Never" nil)
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(const :tag "Only in completely white lines" white)
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(const :tag "Before first char in a line" whitestart)
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(const :tag "Everywhere except in headlines" t)
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(const :tag "Everywhere except at bol in headlines" exc-hl-bol)))
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(defcustom org-cycle-separator-lines 2
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"Number of empty lines needed to keep an empty line between collapsed trees.
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If you leave an empty line between the end of a subtree and the following
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headline, this empty line is hidden when the subtree is folded.
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Org mode will leave (exactly) one empty line visible if the number of
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empty lines is equal or larger to the number given in this variable.
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So the default 2 means at least 2 empty lines after the end of a subtree
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are needed to produce free space between a collapsed subtree and the
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following headline.
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If the number is negative, and the number of empty lines is at least -N,
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all empty lines are shown.
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Special case: when 0, never leave empty lines in collapsed view."
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:group 'org-cycle
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:type 'integer)
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(put 'org-cycle-separator-lines 'safe-local-variable 'integerp)
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(defcustom org-cycle-pre-hook nil
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"Hook that is run before visibility cycling is happening.
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The function(s) in this hook must accept a single argument which indicates
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the new state that will be set right after running this hook. The
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argument is a symbol. Before a global state change, it can have the values
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`overview', `content', or `all'. Before a local state change, it can have
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the values `folded', `children', or `subtree'."
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:group 'org-cycle
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:type 'hook)
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(defcustom org-cycle-hook '(org-cycle-hide-archived-subtrees
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org-cycle-show-empty-lines
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org-cycle-optimize-window-after-visibility-change
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org-cycle-display-inline-images)
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2022-01-15 01:34:49 -05:00
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"Hook that is run after `org-cycle' has changed the buffer visibility.
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The function(s) in this hook must accept a single argument which indicates
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the new state that was set by the most recent `org-cycle' command. The
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argument is a symbol. After a global state change, it can have the values
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`overview', `contents', or `all'. After a local state change, it can have
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the values `folded', `children', or `subtree'."
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:group 'org-cycle
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:package-version '(Org . "9.4")
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:type 'hook)
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(defcustom org-cycle-open-archived-trees nil
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"Non-nil means `org-cycle' will open archived trees.
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An archived tree is a tree marked with the tag ARCHIVE.
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When nil, archived trees will stay folded. You can still open them with
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normal outline commands like `show-all', but not with the cycling commands."
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:group 'org-archive
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:group 'org-cycle
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:type 'boolean)
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2022-10-04 00:36:32 -04:00
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(defcustom org-cycle-inline-images-display nil
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"Non-nil means auto display inline images under subtree when cycling."
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:group 'org-startup
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:group 'org-cycle
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:package-version '(Org . "9.6")
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:type 'boolean)
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2022-01-15 01:34:49 -05:00
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(defvar org-cycle-tab-first-hook nil
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"Hook for functions to attach themselves to TAB.
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See `org-ctrl-c-ctrl-c-hook' for more information.
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This hook runs as the first action when TAB is pressed, even before
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`org-cycle' messes around with the `outline-regexp' to cater for
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inline tasks and plain list item folding.
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If any function in this hook returns t, any other actions that
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would have been caused by TAB (such as table field motion or visibility
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cycling) will not occur.")
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;;;; Implementation:
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(defun org-cycle-hide-drawers (state)
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"Re-hide all drawers after a visibility state change.
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STATE should be one of the symbols listed in the docstring of
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`org-cycle-hook'."
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(when (derived-mode-p 'org-mode)
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(cond ((not (memq state '(overview folded contents)))
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(let* ((global? (eq state 'all))
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(beg (if global? (point-min) (line-beginning-position)))
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(end (cond (global? (point-max))
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((eq state 'children) (org-entry-end-position))
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(t (save-excursion (org-end-of-subtree t t))))))
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2022-05-12 08:11:27 -04:00
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(org-fold--hide-drawers beg end)))
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2022-01-15 01:34:49 -05:00
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((memq state '(overview contents))
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;; Hide drawers before first heading.
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(let ((beg (point-min))
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(end (save-excursion
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(goto-char (point-min))
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(if (org-before-first-heading-p)
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(org-entry-end-position)
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(point-min)))))
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(when (< beg end)
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(org-fold--hide-drawers beg end)))))))
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;;;###autoload
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(defun org-cycle (&optional arg)
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"TAB-action and visibility cycling for Org mode.
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This is the command invoked in Org mode by the `TAB' key. Its main
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purpose is outline visibility cycling, but it also invokes other actions
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in special contexts.
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When this function is called with a `\\[universal-argument]' prefix, rotate \
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the entire
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buffer through 3 states (global cycling)
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1. OVERVIEW: Show only top-level headlines.
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2. CONTENTS: Show all headlines of all levels, but no body text.
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3. SHOW ALL: Show everything.
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With a `\\[universal-argument] \\[universal-argument]' prefix argument, \
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switch to the startup visibility,
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determined by the variable `org-startup-folded', and by any VISIBILITY
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properties in the buffer.
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With a `\\[universal-argument] \\[universal-argument] \
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\\[universal-argument]' prefix argument, show the entire buffer, including
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any drawers.
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When inside a table, re-align the table and move to the next field.
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When point is at the beginning of a headline, rotate the subtree started
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by this line through 3 different states (local cycling)
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1. FOLDED: Only the main headline is shown.
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2. CHILDREN: The main headline and the direct children are shown.
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From this state, you can move to one of the children
|
|
|
|
and zoom in further.
|
|
|
|
3. SUBTREE: Show the entire subtree, including body text.
|
|
|
|
If there is no subtree, switch directly from CHILDREN to FOLDED.
|
|
|
|
|
|
|
|
When point is at the beginning of an empty headline and the variable
|
|
|
|
`org-cycle-level-after-item/entry-creation' is set, cycle the level
|
|
|
|
of the headline by demoting and promoting it to likely levels. This
|
|
|
|
speeds up creation document structure by pressing `TAB' once or several
|
|
|
|
times right after creating a new headline.
|
|
|
|
|
|
|
|
When there is a numeric prefix, go up to a heading with level ARG, do
|
|
|
|
a `show-subtree' and return to the previous cursor position. If ARG
|
|
|
|
is negative, go up that many levels.
|
|
|
|
|
|
|
|
When point is not at the beginning of a headline, execute the global
|
|
|
|
binding for `TAB', which is re-indenting the line. See the option
|
|
|
|
`org-cycle-emulate-tab' for details.
|
|
|
|
|
|
|
|
As a special case, if point is at the very beginning of the buffer, if
|
|
|
|
there is no headline there, and if the variable `org-cycle-global-at-bob'
|
|
|
|
is non-nil, this function acts as if called with prefix argument \
|
|
|
|
\(`\\[universal-argument] TAB',
|
|
|
|
same as `S-TAB') also when called without prefix argument."
|
|
|
|
(interactive "P")
|
|
|
|
(org-load-modules-maybe)
|
|
|
|
(unless (or (run-hook-with-args-until-success 'org-cycle-tab-first-hook)
|
|
|
|
(and org-cycle-level-after-item/entry-creation
|
|
|
|
(or (org-cycle-level)
|
|
|
|
(org-cycle-item-indentation))))
|
2024-01-09 09:24:16 -05:00
|
|
|
(when (and org-cycle-max-level
|
|
|
|
(or (not (integerp org-cycle-max-level))
|
|
|
|
(< org-cycle-max-level 1)))
|
|
|
|
(user-error "`org-cycle-max-level' must be a positive integer"))
|
2022-01-15 01:34:49 -05:00
|
|
|
(let* ((limit-level
|
|
|
|
(or org-cycle-max-level
|
|
|
|
(and (boundp 'org-inlinetask-min-level)
|
|
|
|
org-inlinetask-min-level
|
|
|
|
(1- org-inlinetask-min-level))))
|
|
|
|
(nstars
|
|
|
|
(and limit-level
|
|
|
|
(if org-odd-levels-only
|
|
|
|
(1- (* 2 limit-level))
|
|
|
|
limit-level)))
|
|
|
|
(org-outline-regexp
|
|
|
|
(format "\\*%s " (if nstars (format "\\{1,%d\\}" nstars) "+"))))
|
|
|
|
(cond
|
|
|
|
((equal arg '(16))
|
|
|
|
(setq last-command 'dummy)
|
|
|
|
(org-cycle-set-startup-visibility)
|
|
|
|
(org-unlogged-message "Startup visibility, plus VISIBILITY properties"))
|
|
|
|
((equal arg '(64))
|
|
|
|
(org-fold-show-all)
|
|
|
|
(org-unlogged-message "Entire buffer visible, including drawers"))
|
|
|
|
((equal arg '(4)) (org-cycle-internal-global))
|
|
|
|
;; Show-subtree, ARG levels up from here.
|
|
|
|
((integerp arg)
|
|
|
|
(save-excursion
|
|
|
|
(org-back-to-heading)
|
|
|
|
(outline-up-heading (if (< arg 0) (- arg)
|
|
|
|
(- (funcall outline-level) arg)))
|
|
|
|
(org-fold-show-subtree)))
|
|
|
|
;; Global cycling at BOB: delegate to `org-cycle-internal-global'.
|
|
|
|
((and org-cycle-global-at-bob
|
|
|
|
(bobp)
|
|
|
|
(not (looking-at org-outline-regexp)))
|
|
|
|
(let ((org-cycle-hook
|
|
|
|
(remq 'org-cycle-optimize-window-after-visibility-change
|
|
|
|
org-cycle-hook)))
|
|
|
|
(org-cycle-internal-global)))
|
|
|
|
;; Try CDLaTeX TAB completion.
|
|
|
|
((org-try-cdlatex-tab))
|
|
|
|
;; Inline task: delegate to `org-inlinetask-toggle-visibility'.
|
|
|
|
((and (featurep 'org-inlinetask)
|
|
|
|
(org-inlinetask-at-task-p)
|
|
|
|
(or (bolp) (not (eq org-cycle-emulate-tab 'exc-hl-bol))))
|
|
|
|
(org-inlinetask-toggle-visibility))
|
|
|
|
(t
|
|
|
|
(let ((pos (point))
|
|
|
|
(element (org-element-at-point)))
|
|
|
|
(cond
|
|
|
|
;; Try toggling visibility for block at point.
|
|
|
|
((org-fold-hide-block-toggle nil t element))
|
|
|
|
;; Try toggling visibility for drawer at point.
|
|
|
|
((org-fold-hide-drawer-toggle nil t element))
|
|
|
|
;; Table: enter it or move to the next field.
|
|
|
|
((and (org-match-line "[ \t]*[|+]")
|
2023-05-18 07:35:35 -04:00
|
|
|
(org-element-lineage element 'table t))
|
2023-05-16 06:41:53 -04:00
|
|
|
(if (and (org-element-type-p element 'table)
|
2022-01-15 01:34:49 -05:00
|
|
|
(eq 'table.el (org-element-property :type element)))
|
|
|
|
(message (substitute-command-keys "\\<org-mode-map>\
|
|
|
|
Use `\\[org-edit-special]' to edit table.el tables"))
|
|
|
|
(org-table-justify-field-maybe)
|
|
|
|
(call-interactively #'org-table-next-field)))
|
|
|
|
((run-hook-with-args-until-success
|
|
|
|
'org-tab-after-check-for-table-hook))
|
|
|
|
;; At an item/headline: delegate to `org-cycle-internal-local'.
|
|
|
|
((and (or (and org-cycle-include-plain-lists
|
|
|
|
(let ((item (org-element-lineage element
|
|
|
|
'(item plain-list)
|
|
|
|
t)))
|
|
|
|
(and item
|
|
|
|
(= (line-beginning-position)
|
2023-05-03 10:26:41 -04:00
|
|
|
(org-element-post-affiliated
|
|
|
|
item)))))
|
2022-01-15 01:34:49 -05:00
|
|
|
(org-match-line org-outline-regexp))
|
|
|
|
(or (bolp) (not (eq org-cycle-emulate-tab 'exc-hl-bol))))
|
|
|
|
(org-cycle-internal-local))
|
|
|
|
;; From there: TAB emulation and template completion.
|
|
|
|
(buffer-read-only (org-back-to-heading))
|
|
|
|
((run-hook-with-args-until-success
|
|
|
|
'org-tab-after-check-for-cycling-hook))
|
|
|
|
((run-hook-with-args-until-success
|
|
|
|
'org-tab-before-tab-emulation-hook))
|
|
|
|
((and (eq org-cycle-emulate-tab 'exc-hl-bol)
|
|
|
|
(or (not (bolp))
|
|
|
|
(not (looking-at org-outline-regexp))))
|
|
|
|
(call-interactively (global-key-binding (kbd "TAB"))))
|
|
|
|
((or (eq org-cycle-emulate-tab t)
|
|
|
|
(and (memq org-cycle-emulate-tab '(white whitestart))
|
2023-05-10 09:27:13 -04:00
|
|
|
(save-excursion (forward-line 0) (looking-at "[ \t]*"))
|
2022-01-15 01:34:49 -05:00
|
|
|
(or (and (eq org-cycle-emulate-tab 'white)
|
2022-09-06 08:50:59 -04:00
|
|
|
(= (match-end 0) (line-end-position)))
|
2022-01-15 01:34:49 -05:00
|
|
|
(and (eq org-cycle-emulate-tab 'whitestart)
|
|
|
|
(>= (match-end 0) pos)))))
|
|
|
|
(call-interactively (global-key-binding (kbd "TAB"))))
|
|
|
|
(t
|
|
|
|
(save-excursion
|
|
|
|
(org-back-to-heading)
|
|
|
|
(org-cycle))))))))))
|
|
|
|
|
|
|
|
(defun org-cycle-force-archived ()
|
|
|
|
"Cycle subtree even if it is archived."
|
|
|
|
(interactive)
|
|
|
|
(setq this-command 'org-cycle)
|
|
|
|
(let ((org-cycle-open-archived-trees t))
|
|
|
|
(call-interactively 'org-cycle)))
|
|
|
|
|
|
|
|
(defun org-cycle-internal-global ()
|
|
|
|
"Do the global cycling action."
|
|
|
|
;; Hack to avoid display of messages for .org attachments in Gnus
|
|
|
|
(let ((ga (string-match-p "\\*fontification" (buffer-name))))
|
|
|
|
(cond
|
|
|
|
((and (eq last-command this-command)
|
|
|
|
(eq org-cycle-global-status 'overview))
|
|
|
|
;; We just created the overview - now do table of contents
|
|
|
|
;; This can be slow in very large buffers, so indicate action
|
|
|
|
(run-hook-with-args 'org-cycle-pre-hook 'contents)
|
|
|
|
(unless ga (org-unlogged-message "CONTENTS..."))
|
|
|
|
(org-cycle-content)
|
|
|
|
(unless ga (org-unlogged-message "CONTENTS...done"))
|
|
|
|
(setq org-cycle-global-status 'contents)
|
|
|
|
(run-hook-with-args 'org-cycle-hook 'contents))
|
|
|
|
|
|
|
|
((and (eq last-command this-command)
|
|
|
|
(eq org-cycle-global-status 'contents))
|
|
|
|
;; We just showed the table of contents - now show everything
|
|
|
|
(run-hook-with-args 'org-cycle-pre-hook 'all)
|
|
|
|
(org-fold-show-all '(headings blocks))
|
|
|
|
(unless ga (org-unlogged-message "SHOW ALL"))
|
|
|
|
(setq org-cycle-global-status 'all)
|
|
|
|
(run-hook-with-args 'org-cycle-hook 'all))
|
|
|
|
|
|
|
|
(t
|
|
|
|
;; Default action: go to overview
|
|
|
|
(run-hook-with-args 'org-cycle-pre-hook 'overview)
|
|
|
|
(org-cycle-overview)
|
|
|
|
(unless ga (org-unlogged-message "OVERVIEW"))
|
|
|
|
(setq org-cycle-global-status 'overview)
|
|
|
|
(run-hook-with-args 'org-cycle-hook 'overview)))))
|
|
|
|
|
|
|
|
(defun org-cycle-internal-local ()
|
|
|
|
"Do the local cycling action."
|
|
|
|
(let ((goal-column 0) eoh eol eos has-children children-skipped struct)
|
|
|
|
;; First, determine end of headline (EOH), end of subtree or item
|
|
|
|
;; (EOS), and if item or heading has children (HAS-CHILDREN).
|
|
|
|
(save-excursion
|
|
|
|
(if (org-at-item-p)
|
|
|
|
(progn
|
2023-05-10 09:27:13 -04:00
|
|
|
(forward-line 0)
|
2022-01-15 01:34:49 -05:00
|
|
|
(setq struct (org-list-struct))
|
2022-09-06 08:50:59 -04:00
|
|
|
(setq eoh (line-end-position))
|
2022-01-15 01:34:49 -05:00
|
|
|
(setq eos (org-list-get-item-end-before-blank (point) struct))
|
|
|
|
(setq has-children (org-list-has-child-p (point) struct)))
|
|
|
|
(org-back-to-heading)
|
|
|
|
(setq eoh (save-excursion (outline-end-of-heading) (point)))
|
|
|
|
(setq eos (save-excursion
|
|
|
|
(org-end-of-subtree t t)
|
|
|
|
(unless (eobp) (forward-char -1))
|
|
|
|
(point)))
|
|
|
|
(setq has-children
|
|
|
|
(or
|
|
|
|
(save-excursion
|
|
|
|
(let ((level (funcall outline-level)))
|
|
|
|
(outline-next-heading)
|
|
|
|
(and (org-at-heading-p)
|
|
|
|
(> (funcall outline-level) level))))
|
|
|
|
(and (eq org-cycle-include-plain-lists 'integrate)
|
|
|
|
(save-excursion
|
|
|
|
(org-list-search-forward (org-item-beginning-re) eos t))))))
|
|
|
|
;; Determine end invisible part of buffer (EOL)
|
2023-05-10 09:27:13 -04:00
|
|
|
(forward-line 1)
|
2022-01-15 01:34:49 -05:00
|
|
|
(if (eq org-fold-core-style 'text-properties)
|
|
|
|
(while (and (not (eobp)) ;this is like `next-line'
|
|
|
|
(org-fold-folded-p (1- (point))))
|
|
|
|
(goto-char (org-fold-next-visibility-change nil nil t))
|
2023-05-10 09:27:13 -04:00
|
|
|
(and (eolp) (forward-line 1)))
|
2022-01-15 01:34:49 -05:00
|
|
|
(while (and (not (eobp)) ;this is like `next-line'
|
|
|
|
(get-char-property (1- (point)) 'invisible))
|
|
|
|
(goto-char (next-single-char-property-change (point) 'invisible))
|
2023-05-10 09:27:13 -04:00
|
|
|
(and (eolp) (forward-line 1))))
|
2022-01-15 01:34:49 -05:00
|
|
|
(setq eol (point)))
|
|
|
|
;; Find out what to do next and set `this-command'
|
|
|
|
(cond
|
|
|
|
((= eos eoh)
|
|
|
|
;; Nothing is hidden behind this heading
|
|
|
|
(unless (org-before-first-heading-p)
|
|
|
|
(run-hook-with-args 'org-cycle-pre-hook 'empty))
|
|
|
|
(org-unlogged-message "EMPTY ENTRY")
|
|
|
|
(setq org-cycle-subtree-status nil)
|
|
|
|
(save-excursion
|
|
|
|
(goto-char eos)
|
|
|
|
(org-with-limited-levels
|
|
|
|
(outline-next-heading))
|
|
|
|
(when (org-invisible-p) (org-fold-heading nil))))
|
|
|
|
((and (or (>= eol eos)
|
|
|
|
(save-excursion (goto-char eol) (skip-chars-forward "[:space:]" eos) (= (point) eos)))
|
|
|
|
(or has-children
|
|
|
|
(not (setq children-skipped
|
|
|
|
org-cycle-skip-children-state-if-no-children))))
|
|
|
|
;; Entire subtree is hidden in one line: children view
|
|
|
|
(unless (org-before-first-heading-p)
|
|
|
|
(org-with-limited-levels
|
|
|
|
(run-hook-with-args 'org-cycle-pre-hook 'children)))
|
|
|
|
(if (org-at-item-p)
|
2022-09-06 08:50:59 -04:00
|
|
|
(org-list-set-item-visibility (line-beginning-position) struct 'children)
|
2022-01-15 01:34:49 -05:00
|
|
|
(org-fold-show-entry)
|
|
|
|
(org-with-limited-levels (org-fold-show-children))
|
|
|
|
(org-fold-show-set-visibility 'tree)
|
|
|
|
;; Fold every list in subtree to top-level items.
|
|
|
|
(when (eq org-cycle-include-plain-lists 'integrate)
|
|
|
|
(save-excursion
|
|
|
|
(org-back-to-heading)
|
|
|
|
(while (org-list-search-forward (org-item-beginning-re) eos t)
|
2023-05-10 09:27:13 -04:00
|
|
|
(forward-line 0)
|
2022-01-15 01:34:49 -05:00
|
|
|
(let* ((struct (org-list-struct))
|
|
|
|
(prevs (org-list-prevs-alist struct))
|
|
|
|
(end (org-list-get-bottom-point struct)))
|
|
|
|
(dolist (e (org-list-get-all-items (point) struct prevs))
|
|
|
|
(org-list-set-item-visibility e struct 'folded))
|
|
|
|
(goto-char (if (< end eos) end eos)))))))
|
|
|
|
(org-unlogged-message "CHILDREN")
|
|
|
|
(save-excursion
|
|
|
|
(goto-char eos)
|
|
|
|
(org-with-limited-levels
|
|
|
|
(outline-next-heading))
|
|
|
|
(when (and
|
|
|
|
;; Subtree does not end at the end of visible section of the
|
|
|
|
;; buffer.
|
|
|
|
(< (point) (point-max))
|
|
|
|
(org-invisible-p))
|
|
|
|
;; Reveal the following heading line.
|
|
|
|
(org-fold-heading nil)))
|
|
|
|
(setq org-cycle-subtree-status 'children)
|
|
|
|
(unless (org-before-first-heading-p)
|
|
|
|
(run-hook-with-args 'org-cycle-hook 'children)))
|
|
|
|
((or children-skipped
|
|
|
|
(and (eq last-command this-command)
|
|
|
|
(eq org-cycle-subtree-status 'children)))
|
|
|
|
;; We just showed the children, or no children are there,
|
|
|
|
;; now show everything.
|
|
|
|
(unless (org-before-first-heading-p)
|
|
|
|
(run-hook-with-args 'org-pre-cycle-hook 'subtree))
|
|
|
|
(org-fold-region eoh eos nil 'outline)
|
|
|
|
(org-unlogged-message
|
|
|
|
(if children-skipped "SUBTREE (NO CHILDREN)" "SUBTREE"))
|
|
|
|
(setq org-cycle-subtree-status 'subtree)
|
|
|
|
(unless (org-before-first-heading-p)
|
|
|
|
(run-hook-with-args 'org-cycle-hook 'subtree)))
|
|
|
|
(t
|
|
|
|
;; Default action: hide the subtree.
|
|
|
|
(run-hook-with-args 'org-cycle-pre-hook 'folded)
|
|
|
|
(org-fold-region eoh eos t 'outline)
|
|
|
|
(org-unlogged-message "FOLDED")
|
|
|
|
(setq org-cycle-subtree-status 'folded)
|
|
|
|
(unless (org-before-first-heading-p)
|
|
|
|
(run-hook-with-args 'org-cycle-hook 'folded))))))
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
(defun org-cycle-global (&optional arg)
|
|
|
|
"Cycle the global visibility. For details see `org-cycle'.
|
|
|
|
With `\\[universal-argument]' prefix ARG, switch to startup visibility.
|
|
|
|
With a numeric prefix, show all headlines up to that level."
|
|
|
|
(interactive "P")
|
|
|
|
(cond
|
|
|
|
((integerp arg)
|
|
|
|
(org-cycle-content arg)
|
|
|
|
(setq org-cycle-global-status 'contents))
|
|
|
|
((equal arg '(4))
|
|
|
|
(org-cycle-set-startup-visibility)
|
|
|
|
(org-unlogged-message "Startup visibility, plus VISIBILITY properties."))
|
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|
(t
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|
(org-cycle '(4)))))
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|
(defun org-cycle-set-startup-visibility ()
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|
|
|
"Set the visibility required by startup options and properties."
|
|
|
|
(cond
|
2023-02-18 07:29:35 -05:00
|
|
|
;; `fold' is technically not allowed value, but it is often
|
|
|
|
;; intuitively tried by users by analogy with #+STARTUP: fold.
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|
((memq org-startup-folded '(t fold))
|
2022-01-15 01:34:49 -05:00
|
|
|
(org-cycle-overview))
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|
|
((eq org-startup-folded 'content)
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|
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|
(org-cycle-content))
|
|
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|
((eq org-startup-folded 'show2levels)
|
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|
(org-cycle-content 2))
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|
|
((eq org-startup-folded 'show3levels)
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|
|
(org-cycle-content 3))
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|
|
((eq org-startup-folded 'show4levels)
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|
(org-cycle-content 4))
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|
((eq org-startup-folded 'show5levels)
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|
(org-cycle-content 5))
|
2023-02-18 07:29:35 -05:00
|
|
|
;; `nofold' and `showall' are technically not allowed values, but
|
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|
|
;; they are often intuitively tried by users by analogy with
|
|
|
|
;; #+STARTUP: nofold or #STARUP: showall.
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|
((memq org-startup-folded '(showeverything nil nofold showall))
|
2022-01-15 01:34:49 -05:00
|
|
|
(org-fold-show-all)))
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|
|
|
(unless (eq org-startup-folded 'showeverything)
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|
|
(when org-cycle-hide-block-startup (org-fold-hide-block-all))
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|
|
|
(org-cycle-set-visibility-according-to-property)
|
|
|
|
(org-cycle-hide-archived-subtrees 'all)
|
2022-05-27 03:09:16 -04:00
|
|
|
(when org-cycle-hide-drawer-startup (org-cycle-hide-drawers 'all))
|
2022-01-15 01:34:49 -05:00
|
|
|
(org-cycle-show-empty-lines t)))
|
|
|
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|
|
(defun org-cycle-set-visibility-according-to-property ()
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|
|
|
"Switch subtree visibility according to VISIBILITY property."
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|
|
(interactive)
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|
|
|
(let ((regexp (org-re-property "VISIBILITY")))
|
2023-04-30 16:15:11 -04:00
|
|
|
(save-excursion
|
|
|
|
(goto-char (point-min))
|
2022-01-15 01:34:49 -05:00
|
|
|
(while (re-search-forward regexp nil t)
|
2023-04-30 16:15:11 -04:00
|
|
|
(let ((state (match-string 3)))
|
2022-01-15 01:34:49 -05:00
|
|
|
(if (not (org-at-property-p)) (outline-next-heading)
|
|
|
|
(save-excursion
|
|
|
|
(org-back-to-heading t)
|
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|
|
(org-fold-subtree t)
|
|
|
|
(pcase state
|
2023-04-30 16:15:11 -04:00
|
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|
("folded"
|
2022-01-15 01:34:49 -05:00
|
|
|
(org-fold-subtree t))
|
2023-04-30 16:15:11 -04:00
|
|
|
("children"
|
2022-01-15 01:34:49 -05:00
|
|
|
(org-fold-show-hidden-entry)
|
|
|
|
(org-fold-show-children))
|
2023-04-30 16:15:11 -04:00
|
|
|
("content"
|
2023-02-15 10:26:37 -05:00
|
|
|
;; Newline before heading will be outside the
|
|
|
|
;; narrowing. Make sure that it is revealed.
|
|
|
|
(org-fold-heading nil)
|
2022-01-15 01:34:49 -05:00
|
|
|
(save-excursion
|
|
|
|
(save-restriction
|
|
|
|
(org-narrow-to-subtree)
|
|
|
|
(org-cycle-content))))
|
2023-04-30 16:15:11 -04:00
|
|
|
((or "all" "showall")
|
2022-01-15 01:34:49 -05:00
|
|
|
(org-fold-show-subtree))
|
2024-01-30 08:43:08 -05:00
|
|
|
(_ nil)))))))))
|
2022-01-15 01:34:49 -05:00
|
|
|
|
2022-08-13 03:03:28 -04:00
|
|
|
(defun org-cycle-overview ()
|
2022-01-15 01:34:49 -05:00
|
|
|
"Switch to overview mode, showing only top-level headlines."
|
|
|
|
(interactive)
|
|
|
|
(save-excursion
|
|
|
|
(goto-char (point-min))
|
|
|
|
;; Hide top-level drawer.
|
|
|
|
(save-restriction
|
|
|
|
(narrow-to-region (point-min) (or (re-search-forward org-outline-regexp-bol nil t) (point-max)))
|
|
|
|
(org-fold-hide-drawer-all))
|
|
|
|
(goto-char (point-min))
|
|
|
|
(when (re-search-forward org-outline-regexp-bol nil t)
|
|
|
|
(let* ((last (line-end-position))
|
|
|
|
(level (- (match-end 0) (match-beginning 0) 1))
|
|
|
|
(regexp (format "^\\*\\{1,%d\\} " level)))
|
|
|
|
(while (re-search-forward regexp nil :move)
|
|
|
|
(org-fold-region last (line-end-position 0) t 'outline)
|
|
|
|
(setq last (line-end-position))
|
|
|
|
(setq level (- (match-end 0) (match-beginning 0) 1))
|
|
|
|
(setq regexp (format "^\\*\\{1,%d\\} " level)))
|
|
|
|
(org-fold-region last (point) t 'outline)))))
|
|
|
|
|
2022-08-13 03:03:28 -04:00
|
|
|
(defun org-cycle-content (&optional arg)
|
2022-01-15 01:34:49 -05:00
|
|
|
"Show all headlines in the buffer, like a table of contents.
|
2023-11-06 04:46:30 -05:00
|
|
|
With numerical argument ARG, show content up to level ARG."
|
2022-01-15 01:34:49 -05:00
|
|
|
(interactive "p")
|
|
|
|
(org-fold-show-all '(headings))
|
|
|
|
(save-excursion
|
|
|
|
(goto-char (point-min))
|
|
|
|
;; Hide top-level drawer.
|
|
|
|
(save-restriction
|
|
|
|
(narrow-to-region (point-min) (or (re-search-forward org-outline-regexp-bol nil t) (point-max)))
|
|
|
|
(org-fold-hide-drawer-all))
|
|
|
|
(goto-char (point-max))
|
|
|
|
(let ((regexp (if (and (wholenump arg) (> arg 0))
|
|
|
|
(format "^\\*\\{1,%d\\} " arg)
|
|
|
|
"^\\*+ "))
|
|
|
|
(last (point)))
|
|
|
|
(while (re-search-backward regexp nil t)
|
|
|
|
(org-fold-region (line-end-position) last t 'outline)
|
|
|
|
(setq last (line-end-position 0))))))
|
|
|
|
|
|
|
|
(defvar org-cycle-scroll-position-to-restore nil
|
|
|
|
"Temporarily store scroll position to restore.")
|
|
|
|
(defun org-cycle-optimize-window-after-visibility-change (state)
|
|
|
|
"Adjust the window after a change in outline visibility.
|
2023-11-06 04:46:30 -05:00
|
|
|
This function is the default value of the hook `org-cycle-hook'.
|
|
|
|
STATE is the current outline visibility state. It should be one of
|
|
|
|
symbols `content', `all', `folded', `children', or `subtree'."
|
2022-01-15 01:34:49 -05:00
|
|
|
(when (get-buffer-window (current-buffer))
|
|
|
|
(let ((repeat (eq last-command this-command)))
|
|
|
|
(unless repeat
|
|
|
|
(setq org-cycle-scroll-position-to-restore nil))
|
|
|
|
(cond
|
|
|
|
((eq state 'content) nil)
|
|
|
|
((eq state 'all) nil)
|
|
|
|
((and org-cycle-scroll-position-to-restore repeat
|
|
|
|
(eq state 'folded))
|
|
|
|
(set-window-start nil org-cycle-scroll-position-to-restore))
|
|
|
|
((eq state 'folded) nil)
|
|
|
|
((eq state 'children)
|
|
|
|
(setq org-cycle-scroll-position-to-restore (window-start))
|
|
|
|
(or (org-subtree-end-visible-p) (recenter 1)))
|
|
|
|
((eq state 'subtree)
|
|
|
|
(unless repeat
|
|
|
|
(setq org-cycle-scroll-position-to-restore (window-start)))
|
|
|
|
(or (org-subtree-end-visible-p) (recenter 1)))))))
|
|
|
|
|
|
|
|
(defun org-cycle-show-empty-lines (state)
|
|
|
|
"Show empty lines above all visible headlines.
|
|
|
|
The region to be covered depends on STATE when called through
|
|
|
|
`org-cycle-hook'. Lisp program can use t for STATE to get the
|
|
|
|
entire buffer covered. Note that an empty line is only shown if there
|
|
|
|
are at least `org-cycle-separator-lines' empty lines before the headline."
|
|
|
|
(when (/= org-cycle-separator-lines 0)
|
|
|
|
(save-excursion
|
|
|
|
(let* ((n (abs org-cycle-separator-lines))
|
|
|
|
(re (cond
|
|
|
|
((= n 1) "\\(\n[ \t]*\n\\*+\\) ")
|
|
|
|
((= n 2) "^[ \t]*\\(\n[ \t]*\n\\*+\\) ")
|
|
|
|
(t (let ((ns (number-to-string (- n 2))))
|
|
|
|
(concat "^\\(?:[ \t]*\n\\)\\{" ns "," ns "\\}"
|
|
|
|
"[ \t]*\\(\n[ \t]*\n\\*+\\) ")))))
|
|
|
|
beg end)
|
|
|
|
(cond
|
|
|
|
((memq state '(overview contents t))
|
|
|
|
(setq beg (point-min) end (point-max)))
|
|
|
|
((memq state '(children folded))
|
|
|
|
(setq beg (point)
|
|
|
|
end (progn (org-end-of-subtree t t)
|
|
|
|
(line-beginning-position 2)))))
|
|
|
|
(when beg
|
|
|
|
(goto-char beg)
|
|
|
|
(while (re-search-forward re end t)
|
|
|
|
(unless (org-invisible-p (match-end 1))
|
|
|
|
(let ((e (match-end 1))
|
|
|
|
(b (if (>= org-cycle-separator-lines 0)
|
|
|
|
(match-beginning 1)
|
|
|
|
(save-excursion
|
|
|
|
(goto-char (match-beginning 0))
|
|
|
|
(skip-chars-backward " \t\n")
|
|
|
|
(line-end-position)))))
|
|
|
|
(org-fold-region b e nil 'outline))))))))
|
|
|
|
;; Never hide empty lines at the end of the file.
|
|
|
|
(save-excursion
|
|
|
|
(goto-char (point-max))
|
|
|
|
(outline-previous-heading)
|
|
|
|
(outline-end-of-heading)
|
|
|
|
(when (and (looking-at "[ \t\n]+")
|
|
|
|
(= (match-end 0) (point-max)))
|
|
|
|
(org-fold-region (point) (match-end 0) nil 'outline))))
|
|
|
|
|
|
|
|
(defun org-cycle-hide-archived-subtrees (state)
|
|
|
|
"Re-hide all archived subtrees after a visibility state change.
|
|
|
|
STATE should be one of the symbols listed in the docstring of
|
|
|
|
`org-cycle-hook'."
|
|
|
|
(when (and (not org-cycle-open-archived-trees)
|
|
|
|
(not (memq state '(overview folded))))
|
|
|
|
(let ((globalp (memq state '(contents all))))
|
|
|
|
(if globalp
|
2022-05-12 08:11:27 -04:00
|
|
|
(org-fold-hide-archived-subtrees (point-min) (point-max))
|
2022-01-15 01:34:49 -05:00
|
|
|
(org-fold-hide-archived-subtrees
|
|
|
|
(point)
|
|
|
|
(save-excursion
|
|
|
|
(org-end-of-subtree t))))
|
|
|
|
(when (and (not globalp)
|
|
|
|
(member org-archive-tag
|
|
|
|
(org-get-tags nil 'local)))
|
|
|
|
(message "%s" (substitute-command-keys
|
|
|
|
"Subtree is archived and stays closed. Use \
|
2021-03-10 08:41:25 -05:00
|
|
|
`\\[org-cycle-force-archived]' to cycle it anyway."))))))
|
2022-01-15 01:34:49 -05:00
|
|
|
|
2022-10-04 00:36:32 -04:00
|
|
|
(defun org-cycle-display-inline-images (state)
|
|
|
|
"Auto display inline images under subtree when cycling.
|
2023-11-06 04:46:30 -05:00
|
|
|
It works when `org-cycle-inline-images-display' is non-nil.
|
|
|
|
STATE is the current outline visibility state. It should be one of
|
|
|
|
symbols `content', `all', `folded', `children', or `subtree'."
|
2022-10-04 00:36:32 -04:00
|
|
|
(when org-cycle-inline-images-display
|
|
|
|
(pcase state
|
|
|
|
('children
|
|
|
|
(org-with-wide-buffer
|
|
|
|
(org-narrow-to-subtree)
|
|
|
|
;; If has nested headlines, beg,end only from parent headline
|
|
|
|
;; to first child headline which reference to upper
|
|
|
|
;; let-binding `org-next-visible-heading'.
|
|
|
|
(org-display-inline-images
|
|
|
|
nil nil
|
|
|
|
(point-min) (progn (org-next-visible-heading 1) (point)))))
|
|
|
|
('subtree
|
|
|
|
(org-with-wide-buffer
|
|
|
|
(org-narrow-to-subtree)
|
|
|
|
;; If has nested headlines, also inline display images under all sub-headlines.
|
|
|
|
(org-display-inline-images nil nil (point-min) (point-max))))
|
|
|
|
('folded
|
|
|
|
(org-with-wide-buffer
|
|
|
|
(org-narrow-to-subtree)
|
|
|
|
(if (numberp (point-max))
|
|
|
|
(org-remove-inline-images (point-min) (point-max))
|
|
|
|
(ignore)))))))
|
|
|
|
|
2022-01-15 01:34:49 -05:00
|
|
|
(provide 'org-cycle)
|
|
|
|
|
|
|
|
;;; org-cycle.el ends here
|