Move hideshow config from ui/doom->emacs/hideshow

modules/emacs/hideshow/autoload.el

@@ -1,5 +1,10 @@
 ;;; emacs/hideshow/autoload.el -*- lexical-binding: t; -*-
 
+(defface +hideshow-folded-face
+  `((t (:inherit font-lock-comment-face :weight light)))
+  "Face to hightlight `hideshow' overlays."
+  :group 'doom-themes)
+
 ;;;###autoload
 (defun +hideshow-haml-forward-sexp (arg)
   (haml-forward-sexp arg)
@@ -14,6 +19,19 @@
         (goto-char (cadr range))
         (end-of-line)))))
 
+;;;###autoload
+(defun +hideshow-set-up-overlay (ov)
+  (when (eq 'code (overlay-get ov 'hs))
+    (when (featurep 'vimish-fold)
+      (overlay-put
+       ov 'before-string
+       (propertize "…" 'display
+                   (list vimish-fold-indication-mode
+                         'empty-line
+                         'vimish-fold-fringe))))
+    (overlay-put
+     ov 'display (propertize "  [...]  " 'face '+hideshow-folded-face))))
+
 
 ;;
 ;; Indentation detection

modules/emacs/hideshow/config.el

@@ -1,8 +1,11 @@
 ;;; emacs/hideshow/config.el -*- lexical-binding: t; -*-
 
 (after! hideshow  ; built-in
-  (setq hs-hide-comments-when-hiding-all nil)
+  (setq hs-hide-comments-when-hiding-all nil
+        ;; Nicer code-folding overlays (with fringe indicators)
+        hs-set-up-overlay #'+hideshow-set-up-overlay)
 
+  ;; extra folding support for more languages
   (unless (assq 't hs-special-modes-alist)
     (setq hs-special-modes-alist
           (append