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fix: remove unused time check for invisible components

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Tienson Qin
2022-08-15 15:41:31 +08:00
parent 1fefe92433
commit eff9072564
1 changed files with 3 additions and 9 deletions
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12
src/main/frontend/ui.cljs
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@@ -940,20 +940,14 @@
(if (or (util/mobile?) (mobile-util/native-platform?))
(content-fn)
(let [[visible? set-visible!] (rum/use-state false)
[last-changed-time set-last-changed-time!] (rum/use-state nil)
inViewState (useInView #js {:rootMargin "100px"
:triggerOnce trigger-once?
:onChange (fn [in-view? entry]
(let [self-top (.-top (.-boundingClientRect entry))
time' (util/time-ms)]
(when (and
(or (and (not visible?) in-view?)
;; hide only the components below the current top for better ux
(and visible? (not in-view?) (> self-top 0)))
(or (nil? last-changed-time)
(and (some? last-changed-time)
(> (- time' last-changed-time) 50))))
(set-last-changed-time! time')
(when (or (and (not visible?) in-view?)
;; hide only the components below the current top for better ux
(and visible? (not in-view?) (> self-top 0)))
(set-visible! in-view?))))})
ref (.-ref inViewState)]
(lazy-visible-inner visible? content-fn ref)))))