AG-1053 Tidy react examples, make more idiomatic

src-examples/filterComponentExample/PartialMatchFilter.jsx

@@ -0,0 +1,83 @@
+import React, {Component} from "react";
+
+export default class PartialMatchFilter extends Component {
+    constructor(props) {
+        super(props);
+
+        this.state = {
+            text: ''
+        };
+
+        this.valueGetter = this.props.valueGetter;
+    }
+
+    isFilterActive() {
+        return this.state.text !== null && this.state.text !== undefined && this.state.text !== '';
+    }
+
+    doesFilterPass(params) {
+        return this.state.text.toLowerCase()
+            .split(" ")
+            .every((filterWord) => {
+                return this.valueGetter(params.node).toString().toLowerCase().indexOf(filterWord) >= 0;
+            });
+    }
+
+    getModel() {
+        return {value: this.state.text};
+    }
+
+    setModel(model) {
+        this.state.text = model ? model.value : '';
+    }
+
+    componentDidMount() {
+        this.focus();
+    }
+
+    focus() {
+        setTimeout(() => {
+            if (this.refs.input) {
+                this.refs.input.focus();
+            }
+        })
+    }
+
+    componentMethod(message) {
+        alert(`Alert from PartialMatchFilterComponent ${message}`);
+    }
+
+    onChange = (event) => {
+        let newValue = event.target.value;
+        if (this.state.text !== newValue) {
+            this.setState({
+                text: newValue
+            }, () => {
+                // wait for the state to be applied, then let the grid know about the change
+                this.props.filterChangedCallback();
+            });
+
+        }
+    };
+
+    render() {
+        console.log("render");
+        let style = {
+            border: "2px solid #22ff22",
+            borderRadius: "5px",
+            backgroundColor: "#bbffbb",
+            width: "200px",
+            height: "50px"
+        };
+
+        return (
+            <div style={style}>
+                Filter: <input style={{height: "20px"}}
+                               ref="input"
+                               value={this.state.text}
+                               onChange={this.onChange}
+                               className="form-control"/>
+            </div>
+        );
+    }
+};