SIP-32: Moving frontend code to the base of the repo (#9098)

* move assets out, get webpack dev working

* update docs to reference superset-frontend

* draw the rest of the owl

* fix docs

* fix webpack script

* rats

* correct docs

* fix tox dox

superset-frontend/src/explore/components/controls/SelectAsyncControl.jsx

@@ -0,0 +1,94 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import React from 'react';
+import PropTypes from 'prop-types';
+import { t } from '@superset-ui/translation';
+
+import Select from '../../../components/AsyncSelect';
+import ControlHeader from '../ControlHeader';
+import withToasts from '../../../messageToasts/enhancers/withToasts';
+
+const propTypes = {
+  dataEndpoint: PropTypes.string.isRequired,
+  multi: PropTypes.bool,
+  mutator: PropTypes.func,
+  onAsyncErrorMessage: PropTypes.string,
+  onChange: PropTypes.func,
+  placeholder: PropTypes.string,
+  value: PropTypes.oneOfType([
+    PropTypes.string,
+    PropTypes.number,
+    PropTypes.arrayOf(PropTypes.string),
+    PropTypes.arrayOf(PropTypes.number),
+  ]),
+  addDangerToast: PropTypes.func.isRequired,
+};
+
+const defaultProps = {
+  multi: true,
+  onAsyncErrorMessage: t('Error while fetching data'),
+  onChange: () => {},
+  placeholder: t('Select ...'),
+};
+
+const SelectAsyncControl = props => {
+  const {
+    value,
+    onChange,
+    dataEndpoint,
+    multi,
+    mutator,
+    placeholder,
+    onAsyncErrorMessage,
+  } = props;
+  const onSelectionChange = options => {
+    let val;
+    if (multi) {
+      val = options.map(option => option.value);
+    } else if (options) {
+      val = options.value;
+    } else {
+      val = null;
+    }
+    onChange(val);
+  };
+
+  return (
+    <div>
+      <ControlHeader {...props} />
+      <Select
+        dataEndpoint={dataEndpoint}
+        onChange={onSelectionChange}
+        onAsyncError={errorMsg =>
+          this.props.addDangerToast(onAsyncErrorMessage + ': ' + errorMsg)
+        }
+        mutator={mutator}
+        multi={multi}
+        value={value}
+        placeholder={placeholder}
+        valueRenderer={v => <div>{v.label}</div>}
+      />
+    </div>
+  );
+};
+
+SelectAsyncControl.propTypes = propTypes;
+SelectAsyncControl.defaultProps = defaultProps;
+
+export default withToasts(SelectAsyncControl);