/** * @class Ext.chart.interactions.ItemHighlight * @extends Ext.chart.interactions.Abstract * * The ItemHighlight interaction allows the user to highlight series items in the chart. */ Ext.define('Ext.chart.interactions.ItemHighlight', { extend: 'Ext.chart.interactions.Abstract', type: 'itemhighlight', alias: 'interaction.itemhighlight', config: { /** * @cfg {String} gesture * Defines the gesture type that should trigger item highlighting. */ gesture: 'tap' }, getGestures: function () { var gestures = {}; gestures['item' + this.getGesture()] = 'onGesture'; gestures[this.getGesture()] = 'onFailedGesture'; return gestures; }, onGesture: function (series, item, e) { e.highlightItem = item; return false; }, onFailedGesture: function (e) { this.getChart().setHighlightItem(e.highlightItem || null); this.sync(); } });