ui: Do not clutter component tree with Redux connects

This change refactors the frontend to use hooks for obtaining state
within the Redux store as opposed to using Higher-Order Components
(HOCs). This eliminates a lot of clutter in the components.

1 files changed, 6 insertions, 13 deletions

diff --git a/opendc-web/opendc-web-ui/src/containers/app/map/controls/ZoomControlContainer.js b/opendc-web/opendc-web-ui/src/containers/app/map/controls/ZoomControlContainer.js
index ddc68cc7..a18dfd5b 100644
--- a/opendc-web/opendc-web-ui/src/containers/app/map/controls/ZoomControlContainer.js
+++ b/opendc-web/opendc-web-ui/src/containers/app/map/controls/ZoomControlContainer.js
@@ -1,19 +1,12 @@
-import { connect } from 'react-redux'
+import React from 'react'
+import { useDispatch, useSelector } from 'react-redux'
 import { zoomInOnCenter } from '../../../../actions/map'
 import ZoomControlComponent from '../../../../components/app/map/controls/ZoomControlComponent'
 
-const mapStateToProps = (state) => {
-    return {
-        mapScale: state.map.scale,
-    }
+const ZoomControlContainer = () => {
+    const dispatch = useDispatch()
+    const scale = useSelector((state) => state.map.scale)
+    return <ZoomControlComponent mapScale={scale} zoomInOnCenter={(zoomIn) => dispatch(zoomInOnCenter(zoomIn))} />
 }
 
-const mapDispatchToProps = (dispatch) => {
-    return {
-        zoomInOnCenter: (zoomIn) => dispatch(zoomInOnCenter(zoomIn)),
-    }
-}
-
-const ZoomControlContainer = connect(mapStateToProps, mapDispatchToProps)(ZoomControlComponent)
-
 export default ZoomControlContainer