Wijmo 5 - Custom Filter Icons

by Joel Parks

HTML

<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<link rel="stylesheet" href="http://cdn.wijmo.com/5.latest/styles/wijmo.min.css">
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.input.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.filter.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/interop/angular/wijmo.angular.min.js"></script>
<!-- mark this as an Angular application and give it a controller -->
<div ng-app="app" ng-controller="appCtrl">
    
  <h2>Custom filter icons</h2>
  <wj-flex-grid items-source="data" class="filterColor" initialized="initGrid(s,e)">
        <wj-flex-grid-filter initialized="initFilter(s,e)"></wj-flex-grid-filter>            
  </wj-flex-grid>
  <button onclick="filterLoad()">
    Load Filter
  </button>
  <button onclick="filterSave()">
    Save Filter
  </button>
</div>

CSS

/* show images on filtered columns */
.filterImage .wj-glyph-filter {
    background-image:url('http://icons.iconseeker.com/png/fullsize/aspnet/filter-1.png');
    background-repeat: no-repeat;
    background-position: bottom right;
    margin-top: 4px;
    width: 1em; height: 1em;
    border: none;
}
.filterImage .wj-glyph-filter:after {
    display: none;
}
/* make active filter images 25% larger */
.filterImage .wj-filter-on .wj-glyph-filter {
    transform: scale(1.25)
}

/* change the color of the filter glyphs */
.filterColor .wj-glyph-filter {
    color: red;
    font-size: 125%;
}

JavaScript

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

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

    // 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
        });
    }

    // expose data as a CollectionView to get events
    $scope.data = new wijmo.collections.CollectionView(data);
    
    // cancel mousedown events if the button pressed was not the left one
    $scope.init = function(s, args) {
        s.hostElement.addEventListener('mousedown', function(e) {
            var btn = e.button || e.which;
            if ((btn & 1) == 0) {
                e.preventDefault();
            }
        }, true); // attach on capture
        s.hostElement.addEventListener('contextmenu', function(e) {
            e.preventDefault();
            alert('show context menu');
        });            
    }
    
    $scope.initGrid = function(s, e) {
    	//console.log(s);
    }
    
    $scope.initFilter = function(s, e) {
    	$scope.filter = s;
    }
    
    filterLoad = function() {
    	$scope.filter.filterDefinition = $scope.savedFilter;
    }
    
    filterSave = function() {
    	$scope.savedFilter = $scope.filter.filterDefinition;
    }
});