So I am trying to render a chart inside of a bootstrap popover and it doesn't seem to be rendering. I have tried every possible thing to debug, but I can't quite figure out what's wrong. So any help would be greatly appreciated. Below is my html code:
<div id="popover-content" style="display: none;">
{%include 'scroll_card.html'%}
</div>
note: I am using jinja to render my html code which contains the graph that I would like to show in my popover. Below is what's in the scroll_card.html file
<div class='summary'><h5 class='header'> Chart </h5>
<div class="chart" style="height: 400px;">
<canvas id='hourly-chart' width="300" height="400">Hello</canvas></div>
</div>
And my js code:
document.addEventListener('DOMContentLoaded', function() {
const myPopoverTrigger = document.getElementById('popover');
let hourChart =null;
const instance = new mdb.Popover(myPopoverTrigger, {
title:"Hourly Forecast",
sanitize:false,
html:true,
content: function(){
popContent = document.querySelector('#popover-content').innerHTML;
return popContent;
}
});
myPopoverTrigger.addEventListener('show.mdb.popover', () => {
const ctxHour = document.getElementById('hourly-chart').getContext('2d');
console.log(ctxHour);
if (hourChart) {
hourChart.destroy();
}
hourChart = new Chart(ctxHour, {
type: 'line',
data: {
labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
borderWidth: 1
}]
},
options: {
responsive: false,
scales: {
y: {
beginAtZero: true
}
}
}
});
console.log(hourChart);
});
myPopoverTrigger.addEventListener('hide.mdb.popover', () => {
if (hourChart) {
hourChart.destroy();
}
});
});
Another Note: when I use my console.log the chart (hourChart), it returns a chart object in the console which gives some weird attributes, like in the options, it returned x and y as undefined. Could I be doing something wrong or missing something?
Thanks
Edit:
So here is my console when I do console.log(hourChart).
The HTML content should be provided directly in the option. Otherwise it's not being added to the DOM in time for the canvas/chart to render.
const instance = new mdb.Popover(myPopoverTrigger, {
title: "Hourly Forecast",
sanitize: false,
html: true,
content: `<div id="popover-content">
<div class='summary'>
<h5 class='header'> Chart </h5>
<div class="chart" style="height: 400px; width: 600px;">
<canvas id='hourly-chart' width="600" height="400"></canvas>
</div>
</div>
</div>`
});