9 lines
1.7 KiB
JavaScript
9 lines
1.7 KiB
JavaScript
/*!
|
|
* swiped-events.js - v1.1.4
|
|
* Pure JavaScript swipe events
|
|
* https://github.com/john-doherty/swiped-events
|
|
* @inspiration https://stackoverflow.com/questions/16348031/disable-scrolling-when-touch-moving-certain-element
|
|
* @author John Doherty <www.johndoherty.info>
|
|
* @license MIT
|
|
*/
|
|
!function(t,e){"use strict";"function"!=typeof t.CustomEvent&&(t.CustomEvent=function(t,n){n=n||{bubbles:!1,cancelable:!1,detail:void 0};var a=e.createEvent("CustomEvent");return a.initCustomEvent(t,n.bubbles,n.cancelable,n.detail),a},t.CustomEvent.prototype=t.Event.prototype),e.addEventListener("touchstart",function(t){if("true"===t.target.getAttribute("data-swipe-ignore"))return;s=t.target,r=Date.now(),n=t.touches[0].clientX,a=t.touches[0].clientY,u=0,i=0},!1),e.addEventListener("touchmove",function(t){if(!n||!a)return;var e=t.touches[0].clientX,r=t.touches[0].clientY;u=n-e,i=a-r},!1),e.addEventListener("touchend",function(t){if(s!==t.target)return;var e=parseInt(l(s,"data-swipe-threshold","20"),10),o=parseInt(l(s,"data-swipe-timeout","500"),10),c=Date.now()-r,d="",p=t.changedTouches||t.touches||[];Math.abs(u)>Math.abs(i)?Math.abs(u)>e&&c<o&&(d=u>0?"swiped-left":"swiped-right"):Math.abs(i)>e&&c<o&&(d=i>0?"swiped-up":"swiped-down");if(""!==d){var b={dir:d.replace(/swiped-/,""),xStart:parseInt(n,10),xEnd:parseInt((p[0]||{}).clientX||-1,10),yStart:parseInt(a,10),yEnd:parseInt((p[0]||{}).clientY||-1,10)};s.dispatchEvent(new CustomEvent("swiped",{bubbles:!0,cancelable:!0,detail:b})),s.dispatchEvent(new CustomEvent(d,{bubbles:!0,cancelable:!0,detail:b}))}n=null,a=null,r=null},!1);var n=null,a=null,u=null,i=null,r=null,s=null;function l(t,n,a){for(;t&&t!==e.documentElement;){var u=t.getAttribute(n);if(u)return u;t=t.parentNode}return a}}(window,document); |