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Changed Gesture Manager. Now works on Panel-PC

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CMS3762\carminatini
2018-01-17 15:00:50 +01:00
parent 1fd7b5036f
commit 371a58be9f
1 changed files with 16 additions and 18 deletions
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Step/wwwroot/src/_base/gestures.js
+16 -18
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@@ -7,13 +7,14 @@ function swipedetect(el, callback, onmovecallback) {
swipedir,
startX,
startY,
lastXswipe,
lastYswipe,
distX,
distY,
threshold = 10, //required min distance traveled to be considered swipe
restraint = 1000, // maximum distance allowed at the same time in perpendicular direction
allowedTime = 300, // maximum time allowed to travel that distance
elapsedTime,
startTime,
handleswipe = callback || function(swipedir) {}
touchsurface.addEventListener('touchstart', function(e) {
@@ -23,21 +24,27 @@ function swipedetect(el, callback, onmovecallback) {
distY = 0
startX = touchobj.pageX
startY = touchobj.pageY
startTime = new Date().getTime() // record time when finger first makes contact with surface
lastXswipe = touchobj.pageX
lastYswipe = touchobj.pageY
e.preventDefault()
}, false)
touchsurface.addEventListener('touchmove', function(e) {
e.preventDefault() // prevent scrolling when inside DIV
var touchobj = e.changedTouches[0];
if (Math.abs(distX) >= threshold && Math.abs(distY) <= restraint) { // 2nd condition for horizontal swipe met
swipedir = (distX < 0) ? 'left' : 'right' // if dist traveled is negative, it indicates left swipe
startX = touchobj.pageX
} else if (Math.abs(distY) >= threshold && Math.abs(distX) <= restraint) { // 2nd condition for vertical swipe met
swipedir = (distY < 0) ? 'up' : 'down' // if dist traveled is negative, it indicates up swipe
startY = touchobj.pageY
distX = touchobj.pageX - lastXswipe;
distY = touchobj.pageY - lastYswipe;
if (Math.abs(distY) >= threshold && Math.abs(distX) < restraint) {
swipedir = (distY < 0) ? 'up' : 'down'
}
if (Math.abs(distX) >= threshold && Math.abs(distY) < restraint) {
swipedir = (distX < 0) ? 'left' : 'right'
}
lastXswipe = touchobj.pageX
lastYswipe = touchobj.pageY
if (onmovecallback)
onmovecallback(e)
@@ -46,15 +53,6 @@ function swipedetect(el, callback, onmovecallback) {
touchsurface.addEventListener('touchend', function(e) {
var touchobj = e.changedTouches[0]
distX = touchobj.pageX - startX // get horizontal dist traveled by finger while in contact with surface
distY = touchobj.pageY - startY // get vertical dist traveled by finger while in contact with surface
elapsedTime = new Date().getTime() - startTime // get time elapsed
if (Math.abs(distX) >= threshold && Math.abs(distY) <= restraint) { // 2nd condition for horizontal swipe met
swipedir = (distX < 0) ? 'left' : 'right' // if dist traveled is negative, it indicates left swipe
} else if (Math.abs(distY) >= threshold && Math.abs(distX) <= restraint) { // 2nd condition for vertical swipe met
swipedir = (distY < 0) ? 'up' : 'down' // if dist traveled is negative, it indicates up swipe
}
handleswipe(swipedir)
e.preventDefault()