AG-1053 Tidy react examples, make more idiomatic

src-examples/simpleReduxDynamicComponentExample/GridComponent.jsx

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+import React, {Component} from "react";
+
+import {AgGridReact} from "ag-grid-react";
+import {connect} from "react-redux";
+
+import PriceRenderer from "./PriceRenderer";
+
+/*
+ * This component serves to display the row data (provided by redux)
+ */
+class GridComponent extends Component {
+    constructor(props) {
+        super(props);
+
+        this.state = {
+            columnDefs: [
+                {
+                    field: 'symbol'
+                },
+                {
+                    field: 'price',
+                    cellClass: 'align-right',
+                    cellRendererFramework: PriceRenderer
+                }
+            ]
+        };
+
+        this.onGridReady = this.onGridReady.bind(this);
+    }
+
+    onGridReady(params) {
+        this.gridApi = params.api;
+        this.columnApi = params.columnApi;
+
+        this.gridApi.sizeColumnsToFit();
+    }
+
+    // row data will be provided via redux on this.props.rowData
+    render() {
+        return (
+            <div style={{height: 400, width: 900, marginTop: 15}}
+                 className="ag-fresh">
+                <AgGridReact
+                    // properties
+                    columnDefs={this.state.columnDefs}
+                    rowData={this.props.rowData}
+
+                    // events
+                    onGridReady={this.onGridReady}>
+                </AgGridReact>
+            </div>
+        )
+    }
+}
+
+// pull off row data changes
+export default connect(
+    (state) => {
+        return {
+            rowData: state.rowData
+        }
+    }
+)(GridComponent);

src-examples/simpleReduxDynamicComponentExample/HeaderComponent.jsx

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+import React, {Component} from "react";
+import {connect} from "react-redux";
+
+// take this line out if you do not want to use ag-Grid-Enterprise
+import "ag-grid-enterprise";
+
+import {setCurrency, updateRowData} from "./gridDataActions";
+
+/*
+ * This component serves both to host the demo controls, which in turn will drive row data state changes
+ */
+class HeaderComponent extends Component {
+    constructor(props) {
+        super(props);
+    }
+
+    componentDidMount() {
+        // provide the initial data to the store (which in turn will populate the grid)
+        this.props.dispatch(updateRowData(this.createRowData()));
+    }
+
+    setCurrency(currencySymbol, exchangeRate) {
+        this.props.dispatch(setCurrency(currencySymbol, exchangeRate));
+    }
+
+    render() {
+        return (
+            <div style={{marginTop: 15}}>
+                <button onClick={this.setCurrency.bind(this, '£', 1)}>Set Currency to GBP</button>
+                <button onClick={this.setCurrency.bind(this, '$', 1.29)}>Set Currency to USD</button>
+            </div>
+        )
+    }
+
+    // the following methods are for creating dummy row data
+    createRowData() {
+        let rowData = [];
+
+        for (let i = 0; i < 14; i++) {
+            let newItem = this.createItem();
+            rowData.push(newItem);
+        }
+
+        return rowData;
+    }
+
+    createItem() {
+        return {
+            symbol: this.createUniqueRandomSymbol(),
+            price: Math.floor(Math.random() * 100)
+        };
+    }
+
+    // creates a unique symbol, eg 'ADG' or 'ZJD'
+    createUniqueRandomSymbol() {
+        let symbol;
+        let possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+        let isUnique = false;
+        while (!isUnique) {
+            symbol = '';
+            // create symbol
+            for (let i = 0; i < 3; i++) {
+                symbol += possible.charAt(Math.floor(Math.random() * possible.length));
+            }
+            // check uniqueness
+            isUnique = true;
+            this.props.rowData.forEach(function (oldItem) {
+                if (oldItem.symbol === symbol) {
+                    isUnique = false;
+                }
+            });
+        }
+
+        return symbol;
+    }
+}
+
+// pull off row data
+export default connect(
+    (state) => {
+        return {
+            rowData: state.rowData
+        }
+    }
+)(HeaderComponent);

src-examples/simpleReduxDynamicComponentExample/PriceRenderer.jsx

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+import React, {Component} from "react";
+import {connect} from "react-redux";
+
+class PriceRenderer extends Component {
+    constructor(props) {
+        super(props);
+
+        this.state = {
+            convertedValue: this.applyExchangeRate(props.exchangeRate, props.value)
+        };
+    }
+
+    componentWillReceiveProps(nextProps) {
+        this.setState({
+            convertedValue: this.applyExchangeRate(nextProps.exchangeRate, nextProps.value)
+        })
+    }
+
+    render() {
+        return (
+            <span>{this.props.currencySymbol}{this.state.convertedValue}</span>
+        );
+    }
+
+    applyExchangeRate = (exchangeRate, value) => {
+        return parseFloat(value * exchangeRate).toFixed(2); // simplified/naive exchange rate implementation!
+    }
+}
+
+export default connect(
+    (state) => {
+        return {
+            currencySymbol: state.currencySymbol,
+            exchangeRate: state.exchangeRate
+        }
+    }
+)(PriceRenderer);

src-examples/simpleReduxDynamicComponentExample/SimpleReduxExample.jsx

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+import React, {Component} from "react";
+import {Provider} from "react-redux";
+import {createStore} from "redux";
+
+// take this line out if you do not want to use ag-Grid-Enterprise
+import "ag-grid-enterprise";
+
+import HeaderComponent from "./HeaderComponent";
+import GridComponent from "./GridComponent";
+
+import gridData from "./gridDataReducer";
+
+let store = createStore(gridData);
+
+/*
+ * This component serves as a container for both the header and grid components. It's primarily here to act as a container
+ * for the redux Provider
+ */
+export default class SimpleReduxExample extends Component {
+    constructor(props) {
+        super(props);
+    }
+
+    render() {
+        return (
+            <Provider store={store}>
+                <div>
+                    <h1>Simple Redux Example using Connected React Components</h1>
+                    <HeaderComponent />
+                    <GridComponent />
+                </div>
+            </Provider>
+        )
+    }
+};

src-examples/simpleReduxDynamicComponentExample/gridDataActions.jsx

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+export function updateRowData(rowData) {
+    return {
+        type: 'ROW_DATA_CHANGED',
+        rowData
+    }
+}
+export function setCurrency(currencySymbol, exchangeRate) {
+    return {
+        type: 'CURRENCY_CHANGED',
+        currencySymbol,
+        exchangeRate
+    }
+}

src-examples/simpleReduxDynamicComponentExample/gridDataReducer.jsx

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+export default (state = {rowData: [], currencySymbol: '£', exchangeRate: 1}, action) => {
+    switch (action.type) {
+        case 'ROW_DATA_CHANGED':
+            return {
+                ...state,
+                rowData: action.rowData,
+            };
+        case 'CURRENCY_CHANGED':
+            return {
+                ...state,
+                currencySymbol: action.currencySymbol,
+                exchangeRate: action.exchangeRate
+            };
+        default:
+            return state;
+    }
+};