You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
1.5 KiB
HTML
49 lines
1.5 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
|
|
<head>
|
|
<title>Double tap</title>
|
|
<meta charset="UTF-8">
|
|
<meta name="date" content="2019-09-25">
|
|
<meta name="author" content="Rita Graca">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<link rel="icon" href="">
|
|
<link rel="stylesheet" type="text/css" href="reset.css">
|
|
<link rel="stylesheet" type="text/css" href="style.css">
|
|
<script src="https://hammerjs.github.io/dist/hammer.js"></script>
|
|
</head>
|
|
|
|
<body>
|
|
<div id="myElement"></div>
|
|
|
|
</body>
|
|
|
|
<script>
|
|
var myElement = document.getElementById('myElement');
|
|
|
|
// We create a manager object, which is the same as Hammer(), but without the presetted recognizers.
|
|
var mc = new Hammer.Manager(myElement);
|
|
|
|
|
|
// Tap recognizer with minimal 2 taps
|
|
mc.add( new Hammer.Tap({ event: 'doubletap', taps: 2 }) );
|
|
// Single tap recognizer
|
|
mc.add( new Hammer.Tap({ event: 'singletap' }) );
|
|
|
|
|
|
// we want to recognize this simulatenous, so a quadrupletap will be detected even while a tap has been recognized.
|
|
mc.get('doubletap').recognizeWith('singletap');
|
|
// we only want to trigger a tap, when we don't have detected a doubletap
|
|
mc.get('singletap').requireFailure('doubletap');
|
|
|
|
|
|
mc.on("doubletap", function(ev) {
|
|
// myElement.textContent += ev.type +" ";
|
|
var backColor = myElement.style.backgroundImage;
|
|
myElement.style.backgroundImage = backColor === 'linear-gradient(pink, red)' ? "linear-gradient(red, pink)" : "linear-gradient(pink, red)";
|
|
});
|
|
|
|
</script>
|
|
|
|
</html>
|