Lightning component for forming Chart

LCMP_StrikeChart.cmp

<aura:component implements="force:appHostable,flexipage:availableForAllPageTypes,forceCommunity:availableForAllPageTypes" access="global" >
    
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=0" />
    
    <ltng:require scripts="/resource/StrikeCmpResource" afterScriptsLoaded="{!c.onInit}"/>
    
    <aura:attribute name="scriptsLoaded" type="Boolean" default="{!false}"/>
    <aura:attribute name="chartRendered" type="Boolean" default="{!false}" description="Flag to display the loading spinner."/>
    <aura:attribute name="triggerRedraw" type="Boolean" access="private" default="{!false}" description="Flag that triggers redraw of the chart."/>
    <aura:attribute name="displayAxis" type="Boolean" access="private" default="{!false}" description="Flag that triggers displaying the left and bottom axis labels."/>
    <aura:attribute name="containerWidth" type="Integer" access="private" default="0" description="This is the avaliable width to draw our charts in pixels"/>
    <aura:attribute name="yAxisLabelMaxHeight" type="Integer" access="private" default="100" description="This is the max width the y axis can grow to. It should be derived from chart height."/>
    <aura:attribute name="thresholdLabel" type="String" default="Threshhold" description="Label that appears at the threshold value."/>
    <aura:attribute name="thresholdValue" type="Integer" description="Value where the threshold line appears. "/>
    
    <!-- CHANGE THE DOM AND FORCE RUN RERENDERER, WITHOUT CHANGING THE DOM RERENDER DOESN'T RUN -->
    <div class="slds-hide">{!v.triggerRedraw}</div>
    
    <aura:attribute name="type" type="String" required="{!true}" description="Type of the chart user wants to render."/>
    <aura:attribute name="title" type="String" description="Title of the chart. Shows up at the top-left corner of the chart."/>
    <aura:attribute name="leftSubtitle" type="String" description="Subtitle of the chart. Shows up at the bottom-left corner of the chart."/>
    <aura:attribute name="rightSubtitle" type="String" description="Subtitle of the chart. Shows up at the bottom-right corner of the chart."/>
    <aura:attribute name="data" type="Object" required="{!true}" description="The data based on which chart renders."/>
    <aura:attribute name="fontSize" type="String" access="private" default=".8125rem" description="The font size of the div texts"/>
    
    <!-- TOOLTIP SPECIFIC ATTRIBUTES -->
    <aura:attribute name="tooltipHtml" type="String" access="private" description="Inner html for the tooltip div. This gets generated on mouseover of a datapoint"/>
    <aura:attribute name="tooltipDisplay" type="String" access="private" default="none" description="Determines to show the tooltip or not"/>
    <aura:attribute name="tooltipXPos" type="Integer" access="private" default="0" description="X position of the tooltip"/>
    <aura:attribute name="tooltipYPos" type="Integer" access="private" default="0" description="Y position of the tooltip"/>
    <aura:attribute name="tooltipOpacity" type="Integer" access="private" default="0" description="Opacity level of the tooltip. This is used to hide it visibly while the width is calculated"/>
    
    <!-- AREA CHART SPECIFIC ATTRIBUTES -->
    <aura:attribute name="xAxisLabel" type="String" default="x-axis" description="Label that appears along X axis."/>
    <aura:attribute name="yAxisLabel" type="String" default="y-axis" description="Label that appears along Y axis."/>
    <aura:attribute name="xAxisDataType" type="String" default="Number" description="Data type on X axis."/>
    <aura:attribute name="yAxisDataType" type="String" default="Number" description="Data type on Y axis."/>
    
    <!-- BAR CHART SPECIFIC ATTRIBUTES -->
    <aura:attribute name="orientation" type="String" default="vertical" description="Determines orientation of the bar chart. It defaults to vertical."/>
    
    <!-- Not Used -->
    <!-- BUBBLE CHART SPECIFIC ATTRIBUTES -->
    <aura:attribute name="bubbleSizeLabel" type="String" default="Bubble Size" description="Label for the bubble size on the tooltip"/>
    
    <!-- Donut CHART SPECIFIC ATTRIBUTES -->
    <aura:attribute name="segmentLabel" type="String" default="Label" description="Label that appears on the tooltip for the label section."/>
    <aura:attribute name="valueLabel" type="String" default="Value" description="Label that appears on the tooltip for the value section"/>
    
    <!-- GAUGE SPECIFIC ATTRIBUTES -->
    <aura:attribute name="lowLabel" type="String" default="Low" description="Tooltip text of the low section in gauge type chart."/>
    <aura:attribute name="medLabel" type="String" default="Medium" description="Tooltip text of the mid section in gauge type chart."/>
    <aura:attribute name="highLabel" type="String" default="High" description="Tooltip text of the high section in gauge type chart."/>
    
    <!-- Rerender the chart if any attribute is changed -->
    <aura:handler name="change" value="{!v.type}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.data}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.title}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.leftSubtitle}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.rightSubtitle}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.xAxisLabel}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.yAxisLabel}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.xAxisDataType}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.yAxisDataType}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.thresholdLabel}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.thresholdValue}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.orientation}" action="{!c.reRenderCharts}"/>
    
    <!-- Not Used -->
    <aura:handler name="change" value="{!v.pieDonutTooltipLabelText}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.pieDonutTooltipValueText}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.lowLabel}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.medLabel}" action="{!c.reRenderCharts}"/>
    <aura:handler name="change" value="{!v.highLabel}" action="{!c.reRenderCharts}"/>
    
    <div class="slds-box" style="border:none">
        <div aura:id="chartContainer" class="sc-position--relative">
            
            <!-- Displays the tooltip while we hover a bar graph in the chart -->
            <div aura:id="tooltipContainer" style="{!'display: ' + v.tooltipDisplay + '; position: absolute; top: ' + v.tooltipYPos + 'px; left: ' + v.tooltipXPos + 'px;'}" class="sc-tooltip">
                <div class="label">
                    <aura:unescapedHtml value="{!v.tooltipHtml}"/>
                </div>
            </div>
            
            <!-- Displays the left axis or the Y axis of the bar graph -->
            <div aura:id="leftAxis" class="{!'slds-truncate ' + if(v.displayAxis == true, '', 'slds-hide')}" style="{!'text-align: center; position: absolute; top: 50%; left: -40px; font-size: 0.8125em; color: rgb(139, 139, 139); transform-origin: left top 0px; transform: rotate(-90deg) translateX(-50%); max-width: ' + v.yAxisLabelMaxHeight+ 'px;'}">
                {!v.yAxisLabel}
            </div>
            
            <!--Make a copy to calculate width. Can't use the original since it flickers in firefox-->
            <div aura:id="tooltipContainerCopy" class="sc-tooltip sc-hidden">
                <div class="label">
                    <aura:unescapedHtml value="{!v.tooltipHtml}"/>
                </div>
            </div>
            
            <!-- Title of the chart -->
            <div style="{!'font-size:' + v.fontSize + ';font-weight:bold;color: rgb(139, 139, 139);'}" class="slds-p-bottom--small slds-text-align--center slds-text-heading--small slds-truncate">
                {!v.title}
            </div>            
            <div aura:id="chart" class="chart-class" />
            
            <!-- If you want to display the label of the axis then the below div is displayed -->
            <aura:if isTrue="{!v.displayAxis}">
                <div aura:id="rightAxis" class="{!'slds-truncate ' + if(v.displayAxis == true, '', 'slds-hide')}" style="text-align: center; font-size: 0.8125em; color: rgb(139, 139, 139); max-width: 70%; margin: auto; padding-top: 40px">
                    {!v.xAxisLabel}
                </div>
            </aura:if>
            
            <!-- If the subtitles of the chart component are not empty then display the below div -->
            <aura:if isTrue="{!not(and(empty(v.leftSubtitle), empty(v.rightSubtitle)))}">
                <div class="slds-grid slds-p-top--small slds-text-body--small" style="{!'font-size: ' + v.fontSize + ';'}">
                    <div title="{!v.leftSubtitle}" class="slds-col slds-size--1-of-2 slds-truncate">{!v.leftSubtitle}</div>
                    <div title="{!v.rightSubtitle}" class="slds-col slds-size--1-of-2 slds-text-align--right slds-truncate">{!v.rightSubtitle}</div>
                </div>
            </aura:if>
            
        </div>
    </div>
</aura:component>

LCMP_StrikeChart.css

.THIS .sc-axis-label {
    color: #bfbebe;
}

.THIS .sc-axis-value {
    color: white;
    font-size: 13px;
}

.THIS .sc-tooltip {
    background: #2c2b2b;
    box-shadow: 0 0 5px #999999;
    color: white;
    font-size: 12px;
    padding: 10px;
    position: absolute;
    text-align: left;
    z-index: 10;
}

.THIS .sc-threshold-line {
    fill: none;
    stroke: #c23934;
    stroke-width: 0.5px;
    stroke-dasharray: 5 5;
    pointer-events: none;
}

.THIS .sc-threshold-text {
    fill: #ffffff;
    pointer-events: none;
}

.THIS .sc-threshold-background {
    fill: #c23934;
    pointer-events: none;
}

.THIS .sc-threshold-triangle {
    fill: #c23934;
    pointer-events: none;
}

.THIS .sc-axis path,
.THIS .sc-axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

.THIS .sc-axis-text {
    font: 10px sans-serif;
    fill: #4d4d4d;
}

.THIS .sc-section:hover {
    fill: #4682b4;
}

/* LINE CHART */
.THIS .sc-line {
    fill: none;
    stroke: #00a1e0;
    stroke-width: 2px;
}

.THIS .sc-lc-area {
    fill: #e6f6fc;
    stroke: none;
}

.THIS .sc-lc-focus-line {
    fill: none;
    stroke: #00a1e0;
    stroke-width: 0.5px;
}

.THIS .sc-lc-focus-circle {
    fill: red;
}
/* /LINE CHART */



/* BAR CHART */
.THIS .sc-bc-bar {
    /*fill: #00a1e0;*/
}

.THIS .sc-bc-bar:hover {
    fill: #005170 !important;
}
/* /BAR CHART */



/* BUBBLE CHART */
.THIS .sc-bc-bubble {
    fill-opacity: 0.3;
}
.THIS .sc-bc-bubble:hover {
    fill-opacity: 0.7;
}
/* /BAR BUBBLE */



/* PIE DONUT CHART */
.THIS .sc-pdc-section-percent {
    color: #c6c663;
    font-size: 12px;
}

.THIS .sc-pdc-legend {
    font-size: 12px;
    letter-spacing: .0625rem;
}

.THIS rect {
    stroke-width: 2;
}

.THIS .sc-position--static {
    position: static;
}

.THIS .sc-position--relative {
    position: relative;
}

.THIS .sc-position--absolute {
    position: absolute;
}

.THIS .sc-position--fixed {
    position: fixed;
}

.THIS .sc-position--relative {
	position: relative;
}
.THIS .sc-position--fixed {
	position: fixed;
}
.THIS .sc-position--static {
	position: static;
}
.THIS .sc-position--absolute {
	position: absolute;
}
.THIS .sc-hidden {
    visibility: hidden;
    opacity: 0;
    position: fixed;
    z-index: -9999;
    left: -999999px;
    left: -999vw;
    pointer-events: none;
}

.THIS .chart-class svg {
    overflow: visible !important;
}
/* /PIE DONUT CHART */

LCMP_StrikeChartController.js

({
    //Function called on Init
    onInit: function (component, event, helper) {
        var data = component.get("v.data");
        console.log("The data is:::"+JSON.stringify(data));
        component.set('v.scriptsLoaded', true);
        component.set('v.triggerRedraw', !component.get('v.triggerRedraw'));
        component.resize = $A.getCallback(function () {
            if (component.isValid()) {
                component.set('v.fontSize', helper.determineFontSize(component.get('v.containerWidth')));
                component.set('v.chartRendered', false);
                component.set('v.triggerRedraw', !component.get('v.triggerRedraw'));
            } else {
                window.removeEventListener('resize', component.resize);
            }
        });

        window.addEventListener('resize', component.resize, true);
    },
    
    //Function which sets the spinner to false after chart is loaded
    reRenderCharts: function (component, event, helper) {
        component.set('v.chartRendered', false);
    }
})

LCMP_StrikeChartHelper.js

({
    //Function which draws the bar chart
    barChart: function (component, helper) {
        component.set('v.displayAxis', true);        
        
        var dataset = component.get("v.data"); //The data retrieved from the controller or parent component        
        var color = helper.getColors(); //Setting the colors to the bars
        
        //Setting the orientation of the chart as vertical, can also be turned to horizontal
        var isVertical = component.get('v.orientation') === 'vertical';
        var numericalAxis = isVertical ? 'y' : 'x';
        var stringAxis = isVertical ? 'x' : 'y';
        
        //Setting the labels for the X & Y axis
        var xAxisLabel = component.get('v.xAxisLabel');
        var yAxisLabel = component.get('v.yAxisLabel');
        
        //Setting the height and width of the chart
        var chartWidth = component.get('v.containerWidth');
        var chartHeight = helper.getHeight(chartWidth);
        
        helper.setyAxisLabelMaxHeight(component, chartHeight);
        var paddingBox = helper.getPaddingBox(chartWidth);
        
        var leftAxis = component.find('leftAxis').getElement();
        $A.util.removeClass(leftAxis, 'slds-hide');
        var leftAxisLabelWidth = leftAxis.clientHeight; //get height since we rotated
        chartWidth -= leftAxisLabelWidth;
        
        var x0 = d3.scaleBand().rangeRound([0, chartWidth]).paddingInner(0.1);
        var x1 = d3.scaleBand().padding(0.05);
        var y = d3.scaleLinear().rangeRound([chartHeight, 0]);
        
        //Setting the formats of the numbers and the strings
        var numericalFormat = function (d) {
            return helper.abbreviateNumber(d)
        };
        var stringFormat = function (d) {
            return d;
        };        
        
        var xTickFormatter = stringFormat;
        var yTickFormatter = numericalFormat;
        
        //Creating the values on both the axis
        var xAxis = helper.addBottomAxis(x0, 0, xTickFormatter);
        var yAxis = helper.addLeftAxis(y, 0, yTickFormatter);
                
        var svg = d3.select(component.find('chart').getElement()).append("svg")
        .attr("width", chartWidth)
        .attr("height", chartHeight)
        .attr('style', 'transform: translateX(' + (leftAxisLabelWidth) + 'px);');
        
        //Here we pass the chart related data from the LCMP_CaseTrackerCharts component as a wrapper object
        //The options variable below stores all the fields from the wrapper except the label/Account field
        var options = d3.keys(dataset[0]).filter(function(key) { return key !== "label"; });
        
        //Looping through each element of the data from parent and getting its name and corresponding value
        dataset.forEach(function(d) {
            d.valores = options.map(function(name) { return {name: name, value: +d[name]}; });
        });
        
        //X0 is the chart element, X1 is each bar in the chart
        x0.domain(dataset.map(function(d) { return d.label; }));
        x1.domain(options).rangeRound([0, x0.bandwidth()]);
        y.domain([0, d3.max(dataset, function(d) { return d3.max(d.valores, function(d) { return d.value; }); })]);
        
        //The functions which create the html to form the bar chart
        svg.append("g")
        .attr("class", "x sc-axis")
        .attr("transform", "translate(0," + chartHeight + ")")
        .call(xAxis);
        
        svg.append("g")
        .attr("class", "y sc-axis")
        .call(yAxis);
        
        //Drawing each bar and drawing it as per its label and positioning it appropriately
        var bar = svg.selectAll(".sc-bc-bar")
        .data(dataset)
        .enter().append("g")
        .attr("transform", function(d) { return "translate(" + x0(d.label) + ",0)"; });
        
        //Settig the x position and v position of each bar relative to the previous bar
        bar.selectAll(".sc-bc-bar")
        .data(function(d) { return d.valores; })
        .enter().append("rect").attr('class', 'sc-bc-bar')// drawing a rectangle and appending required styling
        .attr("width", x1.bandwidth()) // setting the width of each bar
        .attr("x", function(d) { return x1(d.name); })
        .attr("y", function(d) { return y(d.value); })
        .attr("value", function(d){return d.name;})
        .attr("height", function(d) { return chartHeight - y(d.value); }) // setting the height of the chart
        .style("fill", function(d) { return color(d.name); }); // filling the color for the bar
        
        //While hovering over each bar, the corresponding data values are displayed in the tooltip
        bar.on('mouseover', $A.getCallback(function (dataPoint) {
            var x = dataPoint.label;
            var elements = document.querySelectorAll(':hover');
            var l = elements.length;
            l = l-1;
            var elementData = elements[l].__data__;
            var elementLabel = elementData.name;
            if(elementLabel==="OpenCases"){
                elementLabel = "Open Cases";
            }
            else if(elementLabel==="ClosedCases"){
                elementLabel = "Closed Cases";
            }
            else if(elementLabel==="TotalCases"){
                elementLabel = "Total Cases";   
            }
            var y = elementLabel +" - "+elementData.value;
            
            // Setting the format of the tooltip
            var tooltipHtml = '<span class="sc-axis-label">' + xAxisLabel + ': </span><span class="sc-axis-value">' + x + '</span><br/>' +
                '<span class="sc-axis-label">' + yAxisLabel + ': </span><span class="sc-axis-value">' + y + '</span>';            
            component.set('v.tooltipHtml', tooltipHtml)
        }));
        
        //Hide tooltip after the mouse moves out
        bar.on('mouseout', $A.getCallback(function () {
            helper.hideTooltip(component);
        }));
        
        //Get the position of the mouse relative to the chart
        bar.on('mousemove', $A.getCallback(function (dataPoint) {
            var mousePos = d3.mouse(component.find('chartContainer').getElement());
            var tooltipOptions = {
                x: mousePos[0],
                y: mousePos[1],
                chartWidth: chartWidth
            }
            helper.showToolTip(component, tooltipOptions);
        }));
        
        //Setting the legend for the chart (legend is the indicator which helps to determine which color represents what number)
        var legend = svg.selectAll(".legend")
        .data(options.slice())
        .enter().append("g")
        .attr("class", "legend")
        .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
        
        //Creating the rectangle for the legend
        legend.append("rect")
        .attr("x", chartWidth + 76)
        .attr("width", 18)
        .attr("height", 18)
        .style("fill", color);
        
        //Creating the text for the legend
        legend.append("text")
        .attr("x", chartWidth + 70)
        .attr("y", 9)
        .attr("dy", ".35em")
        .attr("style", "font-size: .625rem;color: #8b8b8b;text-anchor: end")
        .text(function(d) {
            if(d === "OpenCases") {
                d = "Open Cases";
            } else if(d === "ClosedCases") {
                d = "Closed Cases";
            }
            else if(d === "TotalCases") {
                d = "Total Cases";
            }                
            return d; 
        });
    },
    
    //Sets the maximum value for the Y axis
    setyAxisLabelMaxHeight: function (component, chartHeight) {
        component.set('v.yAxisLabelMaxHeight', chartHeight * .7);
    },
    
    // Funtion to hide the tooltip box
    hideTooltip: function(component) {
        component.set('v.tooltipOpacity', 0);
        component.set('v.tooltipDisplay', 'none')
    },
    
    //Function to set the tooltip position and data
    showToolTip: function(component, tooltipOptions) {
        var tooltipElement = component.find('tooltipContainer').getElement()
        var tooltipElementCopy = component.find('tooltipContainerCopy').getElement();
        var tooltipOffSet = 10;
        
        var tooltipXPos = tooltipOptions.x + tooltipOffSet;
        var tooltipYPos = tooltipOptions.y + tooltipOffSet;
        
        if ((tooltipElementCopy.clientWidth + tooltipXPos) > tooltipOptions.chartWidth) {
            tooltipXPos -= (tooltipElementCopy.clientWidth + (tooltipOffSet * 2));
            
            if (tooltipXPos < 0) {
                tooltipXPos = tooltipOptions.x + tooltipOffSet;
            }
        }
        component.set('v.tooltipDisplay', 'block');
        component.set('v.tooltipXPos', tooltipXPos);
        component.set('v.tooltipYPos', tooltipYPos);
        component.set('v.tooltipOpacity', 1);
    },
    
    //Function which sets the padding for the chart
    getPaddingBox: function(chartWidth) {
        return {
            top: chartWidth * .02,
            left: chartWidth * .1,
            bottom: chartWidth * .1,
            right: chartWidth * .02
        }
    },
    
    //Function which sets the colors for the bars
    getColors: function() {
        return d3.scaleOrdinal().range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c",
                                        "#ff8c00", "#8cc5aa", "#9fa0a4", "#16325c", "#76ded9", "#08a69e",
                                        "#e2cd81", "#e49e24", "#c03a38"]);
    },
    
    //Function which rounds off the bar value
    abbreviateNumber: function(amount) {
        var absAmount = Math.abs(Number(amount));
        var amountNumber = Number(amount);
        var shortenedNumber = amountNumber;
        var abbreviation = '';
        var trillion = Math.pow(10, 12);
        var billion = Math.pow(10, 9);
        var million = Math.pow(10, 6);
        var thousand = Math.pow(10, 3);
        
        if (absAmount / trillion >= 1) {
            shortenedNumber = amountNumber / trillion;
            abbreviation = 'T';
        } else if (absAmount / billion >= 1) {
            shortenedNumber = amountNumber / billion;
            abbreviation = 'B';
            
        } else if (absAmount / million >= 1) {
            shortenedNumber = amountNumber / million;
            abbreviation = 'M';
            
        } else if (absAmount / thousand >= 1) {
            shortenedNumber = amountNumber / thousand;
            abbreviation = 'K';
        }
        
        return (parseFloat(shortenedNumber.toFixed(1)) + abbreviation);
    },
    
    addLeftAxis: function(scale, tickSizeOuter, tickFormat) {
        return d3.axisLeft().scale(scale).tickSizeOuter(tickSizeOuter).tickFormat(tickFormat);
    },
    
    addBottomAxis: function(scale, tickSizeOuter, tickFormat) {
        return d3.axisBottom().scale(scale).tickSizeOuter(tickSizeOuter).tickFormat(tickFormat);
    },
    
    getWidth: function(basedOnWidth) {
        return basedOnWidth * .75;
    },
    
    getHeight: function(basedOnWidth) {
        return basedOnWidth * .66;
    },
    
    //Function to determine the font size of the chart based on chart width
    determineFontSize: function(chartWidth) {
        var fontSize = '.8125rem';
        
        if (chartWidth < 767) {
            fontSize = '.625rem';
        } else if (chartWidth < 1023) {
            fontSize = '.75rem';
        }
        
        return fontSize;
    },
    
    //Function which performs the drawing of the chart
    drawChart: function(component, helper) {
        var chartType = component.get('v.type');
        var chartToDraw = chartType + 'Chart';
        if (chartType === 'pie' || chartType === 'donut') chartToDraw = 'pieDonutChart';
        helper[chartToDraw](component, helper);
        component.set('v.chartRendered', true);
    }
})

LCMP_StrikeChartRenderer.js

({
    rerender: function (component, helper) {
        this.superRerender();
        if (!component.get('v.scriptsLoaded') || component.get('v.chartRendered')) {
            return;
        }
        
        //make sure threshold isn't a string
        component.get('v.thresholdValue', parseInt(component.get('v.thresholdValue')));
        var containerWidth = component.find('chartContainer').getElement().clientWidth;
        component.set('v.containerWidth', containerWidth);

        var chartDiv = component.find('chart').getElement();
        chartDiv.innerHTML = '';
        helper.drawChart(component, helper);
    },
    unrender: function(component) {
        this.superUnrender();
        window.removeEventListener('resize', component.resize);
    }
})