Cara Pasang Script Smoothscroll di Website

Cara Pasang Script Smoothscroll di Website

Jumpa kembali di codepelajar, kali ini singkat saja tutorial cara pasang smootscroll di website. Script ini berguna agar saat melakukan scrolling menggunakan mouse maupun kursor keyboard terasa halus/smooth.



Cara Pasang Smooth scroll di semua platform

Bagi kamu pengguna blogger, wordpress, webly dan semua platform cukup menambahkan script berikut ini.


<script type="text/javascript">/*<![CDATA[*/
//smoothscroll hack
!function(){function e(){var e=!1;e&&c("keydown",r),v.keyboardSupport&&!e&&u("keydown",r)}function t(){if(document.body){var t=document.body,o=document.documentElement,n=window.innerHeight,r=t.scrollHeight;if(S=document.compatMode.indexOf("CSS")>=0?o:t,w=t,e(),x=!0,top!=self)y=!0;else if(r>n&&(t.offsetHeight<=n||o.offsetHeight<=n)){var a=!1,i=function(){a||o.scrollHeight==document.height||(a=!0,setTimeout(function(){o.style.height=document.height+"px",a=!1},500))};if(o.style.height="auto",setTimeout(i,10),S.offsetHeight<=n){var l=document.createElement("div");l.style.clear="both",t.appendChild(l)}}v.fixedBackground||b||(t.style.backgroundAttachment="scroll",o.style.backgroundAttachment="scroll")}}function o(e,t,o,n){if(n||(n=1e3),d(t,o),1!=v.accelerationMax){var r=+new Date,a=r-C;if(a<v.accelerationDelta){var i=(1+30/a)/2;i>1&&(i=Math.min(i,v.accelerationMax),t*=i,o*=i)}C=+new Date}if(M.push({x:t,y:o,lastX:0>t?.99:-.99,lastY:0>o?.99:-.99,start:+new Date}),!T){var l=e===document.body,u=function(){for(var r=+new Date,a=0,i=0,c=0;c<M.length;c++){var s=M[c],d=r-s.start,f=d>=v.animationTime,h=f?1:d/v.animationTime;v.pulseAlgorithm&&(h=p(h));var m=s.x*h-s.lastX>>0,w=s.y*h-s.lastY>>0;a+=m,i+=w,s.lastX+=m,s.lastY+=w,f&&(M.splice(c,1),c--)}l?window.scrollBy(a,i):(a&&(e.scrollLeft+=a),i&&(e.scrollTop+=i)),t||o||(M=[]),M.length?E(u,e,n/v.frameRate+1):T=!1};E(u,e,0),T=!0}}function n(e){x||t();var n=e.target,r=l(n);if(!r||e.defaultPrevented||s(w,"embed")||s(n,"embed")&&/\.pdf/i.test(n.src))return!0;var a=e.wheelDeltaX||0,i=e.wheelDeltaY||0;return a||i||(i=e.wheelDelta||0),!v.touchpadSupport&&f(i)?!0:(Math.abs(a)>1.2&&(a*=v.stepSize/120),Math.abs(i)>1.2&&(i*=v.stepSize/120),o(r,-a,-i),void e.preventDefault())}function r(e){var t=e.target,n=e.ctrlKey||e.altKey||e.metaKey||e.shiftKey&&e.keyCode!==H.spacebar;if(/input|textarea|select|embed/i.test(t.nodeName)||t.isContentEditable||e.defaultPrevented||n)return!0;if(s(t,"button")&&e.keyCode===H.spacebar)return!0;var r,a=0,i=0,u=l(w),c=u.clientHeight;switch(u==document.body&&(c=window.innerHeight),e.keyCode){case H.up:i=-v.arrowScroll;break;case H.down:i=v.arrowScroll;break;case H.spacebar:r=e.shiftKey?1:-1,i=-r*c*.9;break;case H.pageup:i=.9*-c;break;case H.pagedown:i=.9*c;break;case H.home:i=-u.scrollTop;break;case H.end:var d=u.scrollHeight-u.scrollTop-c;i=d>0?d+10:0;break;case H.left:a=-v.arrowScroll;break;case H.right:a=v.arrowScroll;break;default:return!0}o(u,a,i),e.preventDefault()}function a(e){w=e.target}function i(e,t){for(var o=e.length;o--;)z[N(e[o])]=t;return t}function l(e){var t=[],o=S.scrollHeight;do{var n=z[N(e)];if(n)return i(t,n);if(t.push(e),o===e.scrollHeight){if(!y||S.clientHeight+10<o)return i(t,document.body)}else if(e.clientHeight+10<e.scrollHeight&&(overflow=getComputedStyle(e,"").getPropertyValue("overflow-y"),"scroll"===overflow||"auto"===overflow))return i(t,e)}while(e=e.parentNode)}function u(e,t,o){window.addEventListener(e,t,o||!1)}function c(e,t,o){window.removeEventListener(e,t,o||!1)}function s(e,t){return(e.nodeName||"").toLowerCase()===t.toLowerCase()}function d(e,t){e=e>0?1:-1,t=t>0?1:-1,(k.x!==e||k.y!==t)&&(k.x=e,k.y=t,M=[],C=0)}function f(e){if(e){e=Math.abs(e),D.push(e),D.shift(),clearTimeout(A);var t=D[0]==D[1]&&D[1]==D[2],o=h(D[0],120)&&h(D[1],120)&&h(D[2],120);return!(t||o)}}function h(e,t){return Math.floor(e/t)==e/t}function m(e){var t,o,n;return e*=v.pulseScale,1>e?t=e-(1-Math.exp(-e)):(o=Math.exp(-1),e-=1,n=1-Math.exp(-e),t=o+n*(1-o)),t*v.pulseNormalize}function p(e){return e>=1?1:0>=e?0:(1==v.pulseNormalize&&(v.pulseNormalize/=m(1)),m(e))}var w,g={frameRate:150,animationTime:800,stepSize:120,pulseAlgorithm:!0,pulseScale:8,pulseNormalize:1,accelerationDelta:20,accelerationMax:1,keyboardSupport:!0,arrowScroll:50,touchpadSupport:!0,fixedBackground:!0,excluded:""},v=g,b=!1,y=!1,k={x:0,y:0},x=!1,S=document.documentElement,D=[120,120,120],H={left:37,up:38,right:39,down:40,spacebar:32,pageup:33,pagedown:34,end:35,home:36},v=g,M=[],T=!1,C=+new Date,z={};setInterval(function(){z={}},1e4);var A,N=function(){var e=0;return function(t){return t.uniqueID||(t.uniqueID=e++)}}(),E=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||function(e,t,o){window.setTimeout(e,o||1e3/60)}}(),K=/chrome/i.test(window.navigator.userAgent),L="onmousewheel"in document;L&&K&&(u("mousedown",a),u("mousewheel",n),u("load",t))}();
/*]]>*/</script>


Simpan lalu rasakan perbedaannya dengan yang tidak memakai smoothscroll. Bagi kamu pengguna blogger, cukup taruh script di dalam tag <body> dan untuk pengguna wordpress kamu kan bisa download via pluggin ? :P


Sekian tutorial singkat ini semoga bermanfaat.

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