Add minzoom and maxzoom block #77

src/components/layers/MinZoomBlock.jsx

@@ -0,0 +1,26 @@
+import React from 'react'
+
+import GlSpec from 'mapbox-gl-style-spec/reference/latest.js'
+import InputBlock from '../inputs/InputBlock'
+import NumberInput from '../inputs/NumberInput'
+
+class MinZoomBlock extends React.Component {
+  static propTypes = {
+    value: React.PropTypes.number.isRequired,
+    onChange: React.PropTypes.func.isRequired,
+  }
+
+  render() {
+    return <InputBlock label={"Min Zoom"} doc={GlSpec.layer.minzoom.doc}>
+      <NumberInput
+        value={this.props.value}
+        onChange={this.props.onChange}
+        min={GlSpec.layer.minzoom.minimum}
+        max={GlSpec.layer.minzoom.maximum}
+        default={GlSpec.layer.minzoom.minimum}
+      />
+    </InputBlock>
+  }
+}
+
+export default MinZoomBlock