[org] Add org-appear support (#14482)

* [org] Add org-appear support

* fixes for org-appear support

CHANGELOG.develop

@@ -2813,6 +2813,7 @@ files (thanks to Daniel Nicolai)
   - Added package =org-rich-yank= (thanks to Keith Pinson)
   - Added package =org-roam= (thanks to Mariusz Klochowicz)
   - Added package =org-contacts= (thanks to Daniel Nicolai)
+  - Added package =org-appear= (thanks to winsphinX)
 - Key bindings:
   - ~SPC m T i~ to toggle inline images
   - Move clock related key bindings to ~SPC a o C~

layers/+emacs/org/README.org

@@ -29,6 +29,7 @@
   - [[#epub-support][Epub support]]
   - [[#jira-support][Jira support]]
   - [[#valign-support][Valign support]]
+  - [[#org-appear-support][Org-appear support]]
   - [[#verb-support][Verb support]]
   - [[#spacemacs-layout-integration][Spacemacs layout integration]]
 - [[#key-bindings][Key bindings]]
@@ -413,6 +414,14 @@ Set the variable =org-enable-valign= to =t=:
 
 [[https://github.com/casouri/valign#valignel][Known problem: Rendering large tables (≥100 lines) is laggy.]]
 
+** Org-appear support
+To install [[https://github.com/awth13/org-appear][org-appear]], which toggles visibility of emphasis markers, links, subscripts, and superscripts in org mode, set the =org-enable-appear-support= to =t=:
+
+#+BEGIN_SRC emacs-lisp
+  (setq-default dotspacemacs-configuration-layers
+   '((org :variables org-enable-appear-support t)))
+#+END_SRC
+
 ** Verb support
 To install [[https://github.com/federicotdn/verb][Verb]], an HTTP client based on Org mode, set the
 =org-enable-verb-support= variable to =t=:

layers/+emacs/org/config.el

@@ -71,3 +71,6 @@ are configured.")
 (defvar org-enable-valign nil
   "If non-nil, enable valign-mode in org-mode buffers.
 ATTENTION: `valign-mode' will be laggy working with tables contain more than 100 lines.")
+
+(defvar org-enable-appear-support nil
+  "If non-nil, enable org-appear in org-mode buffers.")

layers/+emacs/org/packages.el

@@ -50,7 +50,9 @@
     (org-sticky-header :toggle org-enable-sticky-header)
     (verb :toggle org-enable-verb-support)
     (org-roam :toggle org-enable-roam-support)
-    (valign :toggle org-enable-valign)))
+    (valign :toggle org-enable-valign)
+    (org-appear :location (recipe :fetcher github :repo "awth13/org-appear")
+                :toggle org-enable-appear-support)))
 
 (defun org/post-init-company ()
   (spacemacs|add-company-backends :backends company-capf :modes org-mode))
@@ -970,3 +972,13 @@ Headline^^            Visit entry^^               Filter^^                    Da
                                                (valign-remove-advice)))))
     :config
     (spacemacs|diminish valign-mode " ㊣" " E")))
+
+(defun org/init-org-appear()
+  (use-package org-appear
+    :defer t
+    :init
+    (progn
+      (add-hook 'org-mode-hook 'org-appear-mode)
+      (setq org-appear-autolinks t
+            org-appear-autoemphasis t
+            org-appear-autosubmarkers t))))