Wijmo 5 - FlexGrid Hover in Angular

by Joel Parks

HTML

<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
<script src="http://cdn.wijmo.com/5.20142.0/controls/wijmo.min.js"></script>
<script src="http://cdn.wijmo.com/5.20142.0/controls/wijmo.input.min.js"></script>
<script src="http://cdn.wijmo.com/5.20142.0/controls/wijmo.grid.min.js"></script>
<script src="http://cdn.wijmo.com/5.20142.0/controls/wijmo.chart.min.js"></script>
<link rel="stylesheet" href="http://cdn.wijmo.com/5.20142.0/styles/wijmo.min.css">
<script src="http://cdn.wijmo.com/5.20142.0/interop/angular/wijmo.angular.js"></script>
<!-- mark this as an Angular application and give it a controller -->
<div ng-app="app" ng-controller="appCtrl">
    
<h1>FlexGrid Hover in Angular</h1>

    <p>This is a <b>FlexGrid</b> control:</p>
    <wj-flex-grid items-source="data" items-source-changed="itemsSourceChanged(s,e)" selection-mode="Row" control="flex">
        <wj-flex-grid-column header="Country" binding="country">
          <wj-flex-grid-cell-template cell-type="CellEdit">
            <button>
            Hello
            </button>
          </wj-flex-grid-cell-template>
        </wj-flex-grid-column>
        <wj-flex-grid-column header="Date" binding="date"></wj-flex-grid-column>
        <wj-flex-grid-column header="Sales" binding="sales"></wj-flex-grid-column>
        <wj-flex-grid-column header="Expenses" binding="expenses"></wj-flex-grid-column>
        <wj-flex-grid-column header="Downloads" binding="downloads"></wj-flex-grid-column>
    </wj-flex-grid>
    <p>And this is a <b>FlexChart</b> control showing the same data:</p>
    <wj-flex-chart style="height:300px" items-source="data" binding-x="country" selection-mode="Point">
        <wj-flex-chart-axis wj-property="axisY" major-unit="5000"></wj-flex-chart-axis>
        <wj-flex-chart-series binding="sales" name="Sales"></wj-flex-chart-series>
        <wj-flex-chart-series...

CSS

/* css for hovering on non-header cells */
 .wj-cell:not(.wj-header):hover {
    background-color:rgb(200, 255, 200) !important;
    color:black !important;
}
.hoverRow {
    background-color:rgb(200, 255, 200) !important;
    color:black !important;
}

JavaScript

// define app, include Wijmo 5 directives
var app = angular.module('app', ['wj']);

// controller
app.controller('appCtrl', function ($scope) {

    // add event listeners when itemsSource changes
    var flex = null;
    $scope.itemsSourceChanged = function(s, e) {
        if (!flex) { // add event listeners once
            flex = s;            
            var hoverRow = -1;
            flex.hostElement.addEventListener('mousemove', function (e) {
                var ht = flex.hitTest(e);
                var r = ht.cellType == wijmo.grid.CellType.Cell ? ht.row : -1;
                if (r != hoverRow) {
                    if (hoverRow > -1) {
                        flex.rows[hoverRow].cssClass = null;
                    }
                    hoverRow = r;
                    if (hoverRow > -1) {
                        flex.rows[hoverRow].cssClass = 'hoverRow';
                    }
                }
            });
            flex.hostElement.addEventListener('mouseleave', function (e) {
                if (hoverRow > -1) {
                    flex.rows[hoverRow].cssClass = null;
                    hoverRow = -1;
                }
            });
        }
    };

    // create some random data
    var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','),
        data = [];
    for (var i = 0; i < countries.length; i++) {
        data.push({
            country: countries[i],
            downloads: Math.round(Math.random() * 20000),
            sales: Math.random() * 10000,
            expenses: Math.random() * 5000,
            date: new Date(2014, i % 12, i % 28),
        });
    }

    // expose data as a CollectionView to get events
    $scope.data = new wijmo.collections.CollectionView(data);
    $scope.countries = ['US','UK','Spain'];
});