Group layers #66

src/components/layers/Collapser.jsx

@@ -0,0 +1,20 @@
+import React from 'react'
+import CollapseOpenIcon from 'react-icons/lib/md/arrow-drop-down'
+import CollapseCloseIcon from 'react-icons/lib/md/arrow-drop-up'
+
+export default class Collapser extends React.Component {
+  static propTypes = {
+    isCollapsed: React.PropTypes.bool.isRequired,
+    style: React.PropTypes.object,
+  }
+
+  render() {
+    const iconStyle = {
+      width: 20,
+      height: 20,
+      ...this.props.style,
+    }
+    return this.props.isCollapsed ? <CollapseCloseIcon style={iconStyle}/> : <CollapseOpenIcon style={iconStyle} />
+  }
+}
+