[UI Work] Add Artist, Import Artist, Calendar

frontend/src/AddArtist/AddNewArtist/AddNewArtistConnector.js

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+import PropTypes from 'prop-types';
+import React, { Component } from 'react';
+import { connect } from 'react-redux';
+import { createSelector } from 'reselect';
+import queryString from 'query-string';
+import { lookupArtist, clearAddArtist } from 'Store/Actions/addArtistActions';
+import { fetchRootFolders } from 'Store/Actions/rootFolderActions';
+import AddNewArtist from './AddNewArtist';
+
+function createMapStateToProps() {
+  return createSelector(
+    (state) => state.addArtist,
+    (state) => state.routing.location,
+    (addArtist, location) => {
+      const query = queryString.parse(location.search);
+
+      return {
+        term: query.term,
+        ...addArtist
+      };
+    }
+  );
+}
+
+const mapDispatchToProps = {
+  lookupArtist,
+  clearAddArtist,
+  fetchRootFolders
+};
+
+class AddNewArtistConnector extends Component {
+
+  //
+  // Lifecycle
+
+  constructor(props, context) {
+    super(props, context);
+
+    this._artistLookupTimeout = null;
+  }
+
+  componentDidMount() {
+    this.props.fetchRootFolders();
+  }
+
+  componentWillUnmount() {
+    if (this._artistLookupTimeout) {
+      clearTimeout(this._artistLookupTimeout);
+    }
+
+    this.props.clearAddArtist();
+  }
+
+  //
+  // Listeners
+
+  onArtistLookupChange = (term) => {
+    if (this._artistLookupTimeout) {
+      clearTimeout(this._artistLookupTimeout);
+    }
+
+    if (term.trim() === '') {
+      this.props.clearAddArtist();
+    } else {
+      this._artistLookupTimeout = setTimeout(() => {
+        this.props.lookupArtist({ term });
+      }, 300);
+    }
+  }
+
+  onClearArtistLookup = () => {
+    this.props.clearAddArtist();
+  }
+
+  //
+  // Render
+
+  render() {
+    const {
+      term,
+      ...otherProps
+    } = this.props;
+
+    return (
+      <AddNewArtist
+        term={term}
+        {...otherProps}
+        onArtistLookupChange={this.onArtistLookupChange}
+        onClearArtistLookup={this.onClearArtistLookup}
+      />
+    );
+  }
+}
+
+AddNewArtistConnector.propTypes = {
+  term: PropTypes.string,
+  lookupArtist: PropTypes.func.isRequired,
+  clearAddArtist: PropTypes.func.isRequired,
+  fetchRootFolders: PropTypes.func.isRequired
+};
+
+export default connect(createMapStateToProps, mapDispatchToProps)(AddNewArtistConnector);