b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
12 lines
No EOL
2.3 KiB
JavaScript
12 lines
No EOL
2.3 KiB
JavaScript
;;(function(define){'use strict';define(function(require,exports,module){var pointer=[{down:'touchstart',up:'touchend',move:'touchmove'},{down:'mousedown',up:'mouseup',move:'mousemove'}]['ontouchstart'in window?0:1];module.exports=function(el,options){var released=(options&&options.released)||200;var scope=(options&&options.scope)||el;var min=(options&&options.min)||300;var instant=options&&options.instant;var timeouts={};var removeReleased;el.addEventListener(pointer.down,function(e){var start=e.timeStamp;var target=e.target;var pressed=false;var last=e;if(removeReleased){removeReleased();}
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if(instant){onPressed();}
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else{notScrolling(e,onPressed);}
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function onPressed(){classListUp(target,scope,'add','pressed');}
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addEventListener(pointer.up,function fn(e){removeEventListener(pointer.up,fn,true);var duration=e.timeStamp-start;var delta=min-duration;var lag=Math.max(delta,0);timeouts.pressed=setTimeout(function(){classListUp(target,scope,'remove','pressed');classListUp(target,scope,'add','released');removeReleased=function(){clearTimeout(timeouts.released);classListUp(target,scope,'remove','released');removeReleased=null;};timeouts.released=setTimeout(removeReleased,released);},lag);},true);},true);};function notScrolling(e,fn){detectScrolling(e,function(scrolling){if(!scrolling){fn();}});}
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function detectScrolling(e,fn){var period=76;var last=e;if(windowScrolling){return fn(true);}
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if(!e.touches){return fn(false);}
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addEventListener('touchmove',onTouchMove,true);setTimeout(detect,period);function detect(){removeEventListener('touchmove',onTouchMove,true);if(windowScrolling){return fn(true);}
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var time=last.timeStamp-e.timeStamp;var distance=getDistance(e.touches[0],last.touches[0]);var speed=distance/time;var scrolling=speed>0.03;fn(scrolling);}
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function onTouchMove(e){last=e;}
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function getDistance(a,b){var xs=0;var ys=0;xs=b.clientX-a.clientX;xs=xs*xs;ys=b.clientY-a.clientY;ys=ys*ys;return Math.sqrt(xs+ys);}}
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var windowScrolling=false;var scrollTimeout;function classListUp(el,scope,method,cls){while(el&&el.classList&&el!==scope.parentNode){el.classList[method](cls);el=el.parentNode;}}});})(typeof define=='function'&&define.amd?define:(function(n,w){'use strict';return typeof module=='object'?function(c){c(require,exports,module);}:function(c){var m={exports:{}};c(function(n){return w[n];},m.exports,m);w[n]=m.exports;};})('pressed',this)); |