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, 5 insertions, 7 deletions

diff --git a/opendc-web/opendc-web-ui/src/containers/app/map/controls/ScaleIndicatorContainer.js b/opendc-web/opendc-web-ui/src/containers/app/map/controls/ScaleIndicatorContainer.js
index fa3b9d22..e9d58b9f 100644
--- a/opendc-web/opendc-web-ui/src/containers/app/map/controls/ScaleIndicatorContainer.js
+++ b/opendc-web/opendc-web-ui/src/containers/app/map/controls/ScaleIndicatorContainer.js
@@ -1,12 +1,10 @@
-import { connect } from 'react-redux'
+import React from 'react'
+import { useSelector } from 'react-redux'
 import ScaleIndicatorComponent from '../../../../components/app/map/controls/ScaleIndicatorComponent'
 
-const mapStateToProps = (state) => {
-    return {
-        scale: state.map.scale,
-    }
+const ScaleIndicatorContainer = (props) => {
+    const scale = useSelector((state) => state.map.scale)
+    return <ScaleIndicatorComponent {...props} scale={scale} />
 }
 
-const ScaleIndicatorContainer = connect(mapStateToProps)(ScaleIndicatorComponent)
-
 export default ScaleIndicatorContainer