Created
December 16, 2015 06:48
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swipe.simple.js
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| /** | |
| * Swipe | |
| */ | |
| document.addEventListener('touchstart', handleTouchStart, false); | |
| document.addEventListener('touchmove', handleTouchMove, false); | |
| var xDown = null; | |
| var yDown = null; | |
| function handleTouchStart(ev) { | |
| console.log('handleTouchStart'); | |
| xDown = ev.touches[0].clientX; | |
| yDown = ev.touches[0].clientY; | |
| } | |
| function handleTouchMove(ev) { | |
| console.log('handleTouchMove'); | |
| if (!xDown || !yDown) { | |
| return; | |
| } | |
| var xUp = ev.touches[0].clientX; | |
| var yUp = ev.touches[0].clientY; | |
| var xDiff = xDown - xUp; | |
| var yDiff = yDown - yUp; | |
| if ( Math.abs( xDiff ) > Math.abs( yDiff ) ) {/*most significant*/ | |
| if ( xDiff > 0 ) { | |
| /* left swipe */ | |
| } else { | |
| /* right swipe */ | |
| } | |
| } else { | |
| if ( yDiff > 0 ) { | |
| /* up swipe */ | |
| } else { | |
| /* down swipe */ | |
| } | |
| } | |
| /* reset values */ | |
| xDown = null; | |
| yDown = null; | |
| } |
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