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touch.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<link rel="stylesheet" href="test.css">
<title>Zepto Touch unit tests</title>
<script src="../vendor/evidence.js"></script>
<script src="evidence_runner.js"></script>
<script>
// avoid caching
(function(){
function load(scripts){
scripts.split(' ').forEach(function(script){
document.write('<script src="../src/'+script+'.js?'+(+new Date)+'"></scr'+'ipt>')
})
}
load('zepto event ie touch')
})()
</script>
</head>
<body>
<h1>Zepto Touch unit tests</h1>
<p id="results">
Running… see browser console for results
</p>
<style>
#test {
position: absolute;
left: 0;
top: 0;
width: 100px;
height: 50px;
}
</style>
<script>
(function(){
var emitEvent, tests
// Fire a simulated touch event.
// While it is possible to fire real touch events,
// there are cross-browser issues, and this way we
// can test touch events in browsers that don't
// actually support touch input (like desktop Safari).
//
// Zepto's touch module only uses the `pageX/Y` and `target`
// properties of the first touch in the `touches` TouchList
function emitTouchEvent(type, element, x, y) {
var event = document.createEvent('Event'),
touch = { pageX: x, pageY: y, target: element }
event.initEvent('touch'+type, true, true)
event.touches = [touch]
element.dispatchEvent(event)
}
// IE 10, Windows Phone 8
// MSPointer events, same idea, different implementation.
// For compatibility accepts the same arguments as `touchEvent`
// (touch event names will be mapped to MSPointer event names)
function emitMSPointerEvent(type, element, x, y) {
var event = document.createEvent('Event'),
eventMap = { start: 'Down', move: 'Move', end: 'Up'}
event.initEvent('MSPointer'+eventMap[type], true, true)
event.pageX = x
event.pageY = y
event.pointerType = 666
event.MSPOINTER_TYPE_TOUCH = 666
event.isPrimary = true
element.dispatchEvent(event)
}
// IE 11
// Pointer events, same idea again, yet different implementation.
// For compatibility accepts the same arguments as `touchEvent`
// (touch event names will be mapped to pointer event names)
function emitPointerEvent(type, element, x, y) {
var event = document.createEvent('Event'),
eventMap = { start: 'down', move: 'move', end: 'up'}
event.initEvent('pointer'+eventMap[type], true, true)
event.pageX = x
event.pageY = y
event.pointerType = 'touch'
event.isPrimary = true
element.dispatchEvent(event)
}
function down(element, x, y) {
emitEvent('start', element, x, y)
}
function move(element, x,y) {
emitEvent('move', element, x, y)
}
function up(element) {
emitEvent('end', element)
}
tests = {
setUp: function(){
emitEvent = this.emitEvent
$('<div id=test>TEST ELEMENT</div>').appendTo('body')
},
tearDown: function(){
$('#test').off()
$('#test').remove()
},
testTap: function(t){
var count = 0, element = $('#test').get(0)
$('#test').on('tap', function(){
count++
})
down(element, 10, 10)
up(element)
t.pause()
setTimeout(function(){
t.resume(function(){
t.assertEqual(1, count)
})
}, 50)
},
testScrollDoesNotFireTap: function(t){
var element = $('#test').get(0), count = 0
$('#test').on('tap', function () {
count++
})
down(element, 0, 0)
move(element, 0, 20)
move(element, 0, 20)
up(element)
t.pause()
setTimeout(function(){
t.resume(function(){
t.assertEqual(0, count)
})
}, 50)
},
testSingleTapDoesNotInterfereWithTappingTwice: function(t){
var count = 0, element = $('#test').get(0)
$('#test').on('tap', function(){
count++
})
down(element, 10, 10)
up(element)
t.pause()
setTimeout(function(){
down(element, 10, 10)
up(element)
t.resume(function(){
t.pause()
setTimeout(function(){
t.resume(function(){
t.assertEqual(2, count)
})
}, 200)
})
}, 200)
},
// should be fired if there is one tap within 250ms
testSingleTap: function(t){
var singleCount = 0, doubleCount = 0, element = $('#test').get(0)
$('#test').on('singleTap', function(){
singleCount++
}).on('doubleTap', function(){
doubleCount++
})
down(element, 10, 10)
up(element)
t.pause()
setTimeout(function(){
t.resume(function(){
t.assertEqual(1, singleCount)
t.assertEqual(0, doubleCount)
})
}, 300)
},
// should be fired if there are two taps within 250ms
testDoubleTap: function(t){
var singleCount = 0, doubleCount = 0, element = $('#test').get(0)
$('#test').on('singleTap', function(){
singleCount++
}).on('doubleTap', function(){
doubleCount++
})
down(element, 10, 10)
up(element)
t.pause()
setTimeout(function(){
down(element, 12, 12)
up(element)
t.resume(function(){
t.pause()
setTimeout(function(){
t.resume(function(){
t.assertEqual(0, singleCount)
t.assertEqual(1, doubleCount)
})
}, 100)
})
}, 100)
},
// should be fired if the finger is down in the same location for >750ms
testLongTap: function(t){
var count = 0, element = $('#test').get(0)
$('#test').on('longTap', function(){
count++
})
down(element, 10, 10)
t.pause()
setTimeout(function(){
up(element)
t.resume(function(){
t.assertEqual(1, count)
})
}, 900)
},
testLongTapDoesNotFireIfFingerIsMoved: function(t){
var count = 0, element = $('#test').get(0)
$('#test').on('longTap', function(){
count++
})
down(element, 10, 10)
t.pause()
setTimeout(function(){
move(element, 50, 10)
t.resume(function(){
t.pause()
setTimeout(function(){
up(element)
t.resume(function(){
t.assertEqual(0, count)
})
}, 450)
})
}, 450)
},
testSwipe: function(t){
var swipeCount = 0, element = $('#test').get(0)
$('#test').on('swipe', function(){
swipeCount++
})
down(element, 10, 10)
t.pause()
setTimeout(function(){
move(element, 70, 10)
up(element)
t.resume(function(){
t.pause()
setTimeout(function(){
t.resume(function(){
t.assertEqual(1, swipeCount)
})
}, 50)
})
}, 50)
},
testTapDoNotFireWhenMoveToPointAndBack: function (t) {
var tapCount = 0, element = $('#test').get(0)
$('#test').on('tap', function(){
tapCount++
})
down(element, 10, 10)
move(element, 60, 10)
t.pause()
setTimeout(function(){
t.resume(function(){
move(element, 10, 10)
up(element)
t.pause()
setTimeout(function(){
t.resume( function () {
t.assertEqual(0, tapCount)
})
}, 100)
})
}, 100)
}
// TODO: test swipes in specific directions
}
Evidence('TouchTest', $.extend({ emitEvent: emitTouchEvent }, tests))
Evidence('MSPointerTest', $.extend({ emitEvent: emitMSPointerEvent }, tests))
Evidence('PointerTest', $.extend({ emitEvent: emitPointerEvent }, tests))
})()
</script>
</body>
</html>