enhance(perf): add :ref/linked-references-collapsed-threshold option

Related to #2792

src/main/frontend/components/reference.cljs

@@ -86,16 +86,17 @@
                        :else
                        (db/get-page-referenced-blocks page-name))
           ref-pages (map (comp :block/original-name first) ref-blocks)
+          references (db/get-page-linked-refs-refed-pages repo page-name)
+          references (->> (concat ref-pages references)
+                          (remove nil?)
+                          (distinct))
           scheduled-or-deadlines (if (and journal?
                                           (not (true? (state/scheduled-deadlines-disabled?)))
                                           (= page-name (string/lower-case (date/journal-name))))
                                    (db/get-date-scheduled-or-deadlines (string/capitalize page-name))
                                    nil)
-          references (db/get-page-linked-refs-refed-pages repo page-name)
-          references (->> (concat ref-pages references)
-                          (remove nil?)
-                          (distinct))
-          filter-state (rum/react filters-atom)
+          threshold (state/get-linked-references-collapsed-threshold)]
+      (let [filter-state (rum/react filters-atom)
             filters (when (seq filter-state)
                       (->> (group-by second filter-state)
                            (medley/map-vals #(map first %))))
@@ -139,6 +140,7 @@
                                     (every? false? (vals filter-state)) "text-red-400"
                                     :else "text-yellow-400"))]]
 
+               (fn []
                  [:div.references-blocks
                   (let [ref-hiccup (block/->hiccup filtered-ref-blocks
                                                    {:id page-name
@@ -149,9 +151,9 @@
                                                     :filters filters}
                                                    {})]
                     (content/content page-name
-                                 {:hiccup ref-hiccup}))]
+                                     {:hiccup ref-hiccup}))])
 
-             {}))]]))))
+               {:default-collapsed? (>= n-ref threshold)}))]])))))
 
 (rum/defcs unlinked-references-aux
   < rum/reactive db-mixins/query

src/main/frontend/modules/shortcut/config.cljs

@@ -482,7 +482,6 @@
     :sidebar/clear
     :sidebar/open-today-page
     :search/re-index
-    :graph/re-index
     :auto-complete/prev
     :auto-complete/next
     :auto-complete/complete

src/main/frontend/state.cljs

@@ -1378,6 +1378,14 @@
        value))
    2))
 
+(defn get-linked-references-collapsed-threshold
+  []
+  (or
+   (when-let [value (:ref/linked-references-collapsed-threshold (get-config))]
+     (when (integer? value)
+       value))
+   100))
+
 (defn get-events-chan
   []
   (:system/events @state))

templates/config.edn

@@ -160,6 +160,8 @@
  ;; If we set the level's value to 3, `b` will be opened and `c` will be collapsed.
  :ref/default-open-blocks-level 2
 
+ :ref/linked-references-collapsed-threshold 100
+
  ;; any number between 0 and 1 (the greater it is the faster the changes of the next-interval of card reviews) (default 0.5)
  ;; :srs/learning-fraction 0.5