penpot/frontend/src/app/main/ui/components/dropdown.cljs
2021-03-03 13:23:06 +01:00

51 lines
1.5 KiB
Clojure

(ns app.main.ui.components.dropdown
(:require
[rumext.alpha :as mf]
[app.common.uuid :as uuid]
[app.util.dom :as dom]
[goog.events :as events]
[goog.object :as gobj])
(:import goog.events.EventType
goog.events.KeyCodes))
(mf/defc dropdown'
{::mf/wrap-props false}
[props]
(let [children (gobj/get props "children")
on-close (gobj/get props "on-close")
ref (gobj/get props "container")
on-click
(fn [event]
(let [target (dom/get-target event)]
(when-not (.-data-no-close ^js target)
(if ref
(let [parent (mf/ref-val ref)]
(when-not (or (not parent) (.contains parent target))
(on-close)))
(on-close)))))
on-keyup
(fn [event]
(when (= (.-keyCode event) 27) ; ESC
(on-close)))
on-mount
(fn []
(let [keys [(events/listen js/document EventType.CLICK on-click)
(events/listen js/document EventType.CONTEXTMENU on-click)
(events/listen js/document EventType.KEYUP on-keyup)]]
#(doseq [key keys]
(events/unlistenByKey key))))]
(mf/use-effect on-mount)
children))
(mf/defc dropdown
{::mf/wrap-props false}
[props]
(assert (fn? (gobj/get props "on-close")) "missing `on-close` prop")
(assert (boolean? (gobj/get props "show")) "missing `show` prop")
(when (gobj/get props "show")
(mf/element dropdown' props)))