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kute.js
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kute.js
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/* KUTE.js - The Light Tweening Engine
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* by dnp_theme
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* Licensed under MIT-License
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*/
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(function (factory) {
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if (typeof define === 'function' && define.amd) {
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define([], factory); // AMD. Register as an anonymous module.
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} else if (typeof exports == 'object') {
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module.exports = factory(); // Node, not strict CommonJS
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} else {
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// Browser globals
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window.KUTE = window.KUTE || factory();
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}
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}( function () {
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"use strict";
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var K = K || {}, _tws = [], _t = null,
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_pf = getPrefix(), // prefix
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_rafR = (!('requestAnimationFrame' in window)) ? true : false, // is prefix required for requestAnimationFrame
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_pfT = (!('transform' in document.getElementsByTagName('div')[0].style)) ? true : false, // is prefix required for transform
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_pfB = (!('border-radius' in document.getElementsByTagName('div')[0].style)) ? true : false, // is prefix required for border-radius
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_tch = ('ontouchstart' in window || navigator.msMaxTouchPoints) || false, // support Touch?
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_ev = _tch ? 'touchstart' : 'mousewheel', //event to prevent on scroll
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_bd = document.body, _htm = document.getElementsByTagName('HTML')[0],
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_sct = (/webkit/i.test(navigator.userAgent) || document.compatMode == 'BackCompat' ? _bd : _htm),
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_isIE = (new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})").exec(navigator.userAgent) != null) ? parseFloat( RegExp.$1 ) : false,
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_isIE8 = _isIE === 8, // check IE8/IE
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//assign preffix to DOM properties
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_pfto = _pfT ? _pf + 'TransformOrigin' : 'transformOrigin',
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_pfp = _pfT ? _pf + 'Perspective' : 'perspective',
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_pfo = _pfT ? _pf + 'PerspectiveOrigin' : 'perspectiveOrigin',
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_tr = _pfT ? _pf + 'Transform' : 'transform',
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_br = _pfB ? _pf + 'BorderRadius' : 'borderRadius',
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_brtl = _pfB ? _pf + 'BorderTopLeftRadius' : 'borderTopLeftRadius',
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_brtr = _pfB ? _pf + 'BorderTopRightRadius' : 'borderTopRightRadius',
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_brbl = _pfB ? _pf + 'BorderBottomLeftRadius' : 'borderBottomLeftRadius',
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_brbr = _pfB ? _pf + 'BorderBottomRightRadius' : 'borderBottomRightRadius',
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_raf = _rafR ? window[_pf + 'RequestAnimationFrame'] : window['requestAnimationFrame'],
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_caf = _rafR ? (window[_pf + 'CancelAnimationFrame'] || window[_pf + 'CancelRequestAnimationFrame']) : window['cancelAnimationFrame'],
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//supported properties
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_cls = ['color', 'backgroundColor', 'borderColor', 'borderTopColor', 'borderRightColor', 'borderBottomColor', 'borderLeftColor'], // colors 'hex', 'rgb', 'rgba' -- #fff / rgb(0,0,0) / rgba(0,0,0,0)
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_sc = ['scrollTop', 'scroll'], //scroll, it has no default value, it's calculated on tween start
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_clp = ['clip'], // clip
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_op = ['opacity'], // opacity
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_rd = ['borderRadius', 'borderTopLeftRadius', 'borderTopRightRadius', 'borderBottomLeftRadius', 'borderBottomRightRadius'], // border radius px/any
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_bm = ['top', 'left', 'right', 'bottom',
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'width', 'height', 'minWidth', 'minHeight', 'maxWidth', 'maxHeight',
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'padding', 'margin', 'paddingTop','paddingBottom', 'paddingLeft', 'paddingRight', 'marginTop','marginBottom', 'marginLeft', 'marginRight',
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'borderWidth', 'borderTopWidth', 'borderRightWidth', 'borderBottomWidth', 'borderLeftWidth'], // dimensions / box model
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_tp = ['fontSize','lineHeight','letterSpacing'], // text properties
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_bg = ['backgroundPosition'], // background position
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_3d = ['rotateX', 'rotateY','translateZ'], // transform properties that require perspective
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_tf = ['translate3d', 'translateX', 'translateY', 'translateZ', 'rotate', 'translate', 'rotateX', 'rotateY', 'rotateZ', 'skewX', 'skewY', 'scale'], // transform
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_all = _cls.concat(_sc, _clp, _op, _rd, _bm, _tp, _bg, _tf), al = _all.length,
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_tfS = {}, _tfE = {}, _tlS = {}, _tlE = {}, _rtS = {}, _rtE = {}, //internal temp
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_d = _d || {}; //all properties default values
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//populate default values object
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for ( var i=0; i< al; i++ ){
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var p = _all[i];
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if (_cls.indexOf(p) !== -1){
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_d[p] = 'rgba(0,0,0,0)'; // _d[p] = {r:0,g:0,b:0,a:1};
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} else if ( _rd.indexOf(p) !== -1 || _bm.indexOf(p) !== -1 || _tp.indexOf(p) !== -1) {
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_d[p] = 0;
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} else if ( _bg.indexOf(p) !== -1 ){
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_d[p] = [50,50];
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} else if ( p === 'clip' ){
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_d[p] = [0,0,0,0];
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} else if ( p === 'translate3d' ){
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_d[p] = [0,0,0];
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} else if ( p === 'translate' ){
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_d[p] = [0,0];
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} else if ( p === 'rotate' || /X|Y|Z/.test(p) ){
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_d[p] = 0;
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} else if ( p === 'scale' || p === 'opacity' ){
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_d[p] = 1;
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}
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}
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// main methods
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K.to = function (el, to, o) {
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var _el = typeof el === 'object' ? el : document.querySelector(el),
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_vS = to, _vE = K.prP(to, true); // we're gonna have to build _vS object at start
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o = o || {}; o.rpr = true;
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return new K.Tween(_el, _vS, _vE, o);
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};
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K.fromTo = function (el, f, to, o) {
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var _el = typeof el === 'object' ? el : document.querySelector(el),
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_vS = K.prP(f, false), _vE = K.prP(to, true); o = o || {};
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return new K.Tween(_el, _vS, _vE, o);
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};
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// multiple elements tweening
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K.allTo = function (el, to, o) {
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var _els = typeof el === 'object' && el.length ? el : document.querySelectorAll(el);
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return new K.TweensAT(_els, to, o);
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};
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K.allFromTo = function (el, f, to, o) {
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var _els = typeof el === 'object' && el.length ? el : document.querySelectorAll(el);
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return new K.TweensFT(_els, f, to, o);
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};
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// render functions
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K._r = {}; var _r = K._r;
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K._u = function(w,t) {
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t = t || window.performance.now();
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if (t < w._sT && w.playing && !w.paused) { return true; }
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var p, s = s || w._sT,
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d = d || w._dr,
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e = ( t - s ) / d,
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ve = ve || w._vE,
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es = es || w._e;
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e = e > 1 ? 1 : e;
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//render the CSS update
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for (p in ve){
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_r[p](w,p,es(e));
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}
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if (w._uC) { w._uC.call(); }
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if (e === 1) {
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if (w._r > 0) {
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if ( w._r < 9999 ) { w._r--; }
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if (w._y) { w.reversed = !w.reversed; w.reverse(); } // handle yoyo
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w._sT = (w._y && !w.reversed) ? t + w._rD : t; //set the right time for delay
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return true;
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} else {
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if (w._cC) { w._cC.call(); }
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//stop preventing scroll when scroll tween finished
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w.scrollOut();
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// start animating chained tweens
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var i = 0, ctl = w._cT.length;
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for (i; i < ctl; i++) {
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w._cT[i].start(w._sT + w._dr);
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}
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//stop ticking when finished
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w.close();
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return false;
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}
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}
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return true;
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};
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var _u = K._u;
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// internal ticker
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K._t = function (t) {
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var i = 0, tl;
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_t = _raf(K._t);
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while ( i < (tl = _tws.length) ) {
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if ( _u(_tws[i],t) ) {
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i++;
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} else {
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_tws.splice(i, 1);
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}
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}
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return true;
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};
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// aplies the transform origin and perspective
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K.perspective = function (l,w) {
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if ( w._to !== undefined ) { l.style[_pfto] = w._to; } // element transform origin
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if ( w._ppo !== undefined ) { l.style[_pfo] = w._ppo; } // element perspective origin
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if ( w._ppp !== undefined ) { l.parentNode.style[_pfp] = w._ppp + 'px'; } // parent perspective
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if ( w._pppo !== undefined ) { l.parentNode.style[_pfo] = w._pppo; } // parent perspective origin
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};
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//more internals
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K.getAll = function () { return _tws; };
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K.removeAll = function () { _tws = []; };
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K.add = function (tw) { _tws.push(tw); };
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K.remove = function (tw) {
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var i = _tws.indexOf(tw);
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if (i !== -1) {
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_tws.splice(i, 1);
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}
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};
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K.s = function () { _caf(_t); _t = null; };
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// builds render functions for the render object K.render(w, p, w._e(e));
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K._queue = function (w) {
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for ( var p in w._vE ) {
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// checking array on every frame takes time so let's cache these
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var cls = _cls.indexOf(p) !== -1,
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bm = _tp.indexOf(p) !== -1 || _bm.indexOf(p) !== -1,
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rd = _rd.indexOf(p) !== -1,
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sc = _sc.indexOf(p) !== -1,
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bg = _bg.indexOf(p) !== -1,
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clp = _clp.indexOf(p) !== -1,
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op = _op.indexOf(p) !== -1,
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tf = p === 'transform';
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//process styles by property / property type
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if ( bm && (!(p in K._r)) ) {
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K._r[p] = function(w,p,v) {
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w._el.style[p] = (w._vS[p].value + (w._vE[p].value - w._vS[p].value) * v ) + w._vE[p].unit;
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};
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} else if ( rd && (!(p in K._r)) ) {
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if (p === 'borderRadius') {
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K._r[p] = function(w,p,v) {
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w._el.style[_br] = (w._vS[p].value + (w._vE[p].value - w._vS[p].value) * v ) + w._vE[p].unit;
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};
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} else if (p === 'borderTopLeftRadius') {
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K._r[p] = function(w,p,v) {
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w._el.style[_brtl] = (w._vS[p].value + (w._vE[p].value - w._vS[p].value) * v ) + w._vE[p].unit;
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};
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} else if (p === 'borderTopRightRadius') {
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K._r[p] = function(w,p,v) {
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w._el.style[_brtr] = (w._vS[p].value + (w._vE[p].value - w._vS[p].value) * v ) + w._vE[p].unit;
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};
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} else if (p === 'borderBottomLeftRadius') {
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K._r[p] = function(w,p,v) {
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w._el.style[_brbl] = (w._vS[p].value + (w._vE[p].value - w._vS[p].value) * v ) + w._vE[p].unit;
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};
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} else if (p === 'borderBottomRightRadius') {
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K._r[p] = function(w,p,v) {
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w._el.style[_brbr] = (w._vS[p].value + (w._vE[p].value - w._vS[p].value) * v ) + w._vE[p].unit;
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};
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}
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} else if (tf && (!(p in K._r)) ) {
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K._r[p] = function(w,p,v) {
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var _tS = '', tP, rps, pps = 'perspective('+w._pp+'px) ';
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for (tP in w._vE[p]) {
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var t1 = w._vS[p][tP], t2 = w._vE[p][tP];
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rps = rps || _3d.indexOf(tP) !== -1 && !_isIE;
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if ( tP === 'translate' ) {
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var tls = '', ts = {}, ax;
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for (ax in t2){
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var x1 = t1[ax].value || 0, x2 = t2[ax].value || 0, xu = t2[ax].unit || 'px';
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ts[ax] = x1===x2 ? x2+xu : (x1 + ( x2 - x1 ) * v) + xu;
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}
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tls = t2.x ? 'translate(' + ts.x + ',' + ts.y + ')' :
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'translate3d(' + ts.translateX + ',' + ts.translateY + ',' + ts.translateZ + ')';
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_tS = (_tS === '') ? tls : (tls + ' ' + _tS);
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} else if ( tP === 'rotate' ) {
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var rt = '', rS = {}, rx;
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for ( rx in t2 ){
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if ( t1[rx] ) {
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var a1 = t1[rx].value, a2 = t2[rx].value, au = t2[rx].unit||'deg',
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av = a1 + (a2 - a1) * v;
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rS[rx] = rx ==='z' ? 'rotate('+av+au+')' : rx + '(' + av + au + ') ';
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}
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}
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rt = t2.z ? rS.z : (rS.rotateX||'') + (rS.rotateY||'') + (rS.rotateZ||'');
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_tS = (_tS === '') ? rt : (_tS + ' ' + rt);
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} else if (tP==='skew') {
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var sk = '', sS = {};
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for ( var sx in t2 ){
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if ( t1[sx] ) {
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var s1 = t1[sx].value, s2 = t2[sx].value, su = t2[sx].unit||'deg',
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sv = s1 + (s2 - s1) * v;
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sS[sx] = sx + '(' + sv + su + ') ';
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}
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}
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sk = (sS.skewX||'') + (sS.skewY||'');
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_tS = (_tS === '') ? sk : (_tS + ' ' + sk);
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} else if (tP === 'scale') {
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var sc1 = t1.value, sc2 = t2.value,
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s = sc1 + (sc2 - sc1) * v, scS = tP + '(' + s + ')';
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_tS = (_tS === '') ? scS : (_tS + ' ' + scS);
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}
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}
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w._el.style[_tr] = rps || ( w._pp !== undefined && w._pp !== 0 ) ? pps + _tS : _tS;
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};
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} else if ( cls && (!(p in K._r)) ) {
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K._r[p] = function(w,p,v) {
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var _c = {};
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for (var c in w._vE[p].value) {
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if ( c !== 'a' ){
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_c[c] = parseInt(w._vS[p].value[c] + (w._vE[p].value[c] - w._vS[p].value[c]) * v )||0;
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} else {
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_c[c] = (w._vS[p].value[c] && w._vE[p].value[c]) ? parseFloat(w._vS[p].value[c] + (w._vE[p].value[c] - w._vS[p].value[c]) * v) : null;
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}
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}
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if ( w._hex ) {
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w._el.style[p] = K.rth( parseInt(_c.r), parseInt(_c.g), parseInt(_c.b) );
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} else {
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w._el.style[p] = !_c.a || _isIE8 ? 'rgb(' + _c.r + ',' + _c.g + ',' + _c.b + ')' : 'rgba(' + _c.r + ',' + _c.g + ',' + _c.b + ',' + _c.a + ')';
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}
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};
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} else if ( sc && (!(p in K._r)) ) {
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K._r[p] = function(w,p,v) {
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w._el = (w._el === undefined || w._el === null) ? _sct : w._el;
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w._el.scrollTop = w._vS[p].value + (w._vE[p].value - w._vS[p].value) * v;
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};
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} else if ( bg && (!(p in K._r)) ) {
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K._r[p] = function(w,p,v) {
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var px1 = w._vS[p].x.v, px2 = w._vE[p].x.v, py1 = w._vS[p].y.v, py2 = w._vE[p].y.v,
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px = (px1 + ( px2 - px1 ) * v), pxu = '%', py = (py1 + ( py2 - py1 ) * v), pyu = '%';
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w._el.style[p] = px + pxu + ' ' + py + pyu;
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};
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} else if ( clp && (!(p in K._r)) ) {
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K._r[p] = function(w,p,v) {
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var h = 0, cl = [];
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for (h;h<4;h++){
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var c1 = w._vS[p][h].v, c2 = w._vE[p][h].v, cu = w._vE[p][h].u || 'px';
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cl[h] = ((c1 + ( c2 - c1 ) * v)) + cu;
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}
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w._el.style[p] = 'rect('+cl+')';
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};
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} else if ( op && (!(p in K._r)) ) {
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if (_isIE8) {
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K._r[p] = function(w,p,v) {
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w._el.style.filter = "alpha(opacity=" + ( w._vS[p].value + (w._vE[p].value - w._vS[p].value) * v) * 100 + ")";
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};
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} else {
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K._r[p] = function(w,p,v) {
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w._el.style.opacity = w._vS[p].value + (w._vE[p].value - w._vS[p].value) * v;
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};
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}
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}
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}
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};
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// process properties
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K.prP = function (t, e) { // process tween properties for .fromTo() method
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var _st = {},
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tr = e === true ? _tfE : _tfS,
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tl = e === true ? _tlE : _tlS,
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rt = e === true ? _rtE : _rtS;
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tl = {}; tr = {};
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for (var x in t) {
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if (_tf.indexOf(x) !== -1) {
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if (x !== 'translate' && /translate/.test(x)) { //process translate3d
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var ta = ['X', 'Y', 'Z'], f = 0; //coordinates // translate[x] = pp(x, t[x]);
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for (f; f < 3; f++) {
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var a = ta[f];
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if ( /3d/.test(x) ) {
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tl['translate' + a] = K.pp('translate' + a, t[x][f]);
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} else {
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tl['translate' + a] = ('translate' + a in t) ? K.pp('translate' + a, t['translate' + a]) : { value: 0, unit: 'px' };
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}
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}
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|
||||
tr['translate'] = tl;
|
||||
} else if ( x !== 'rotate' && /rotate|skew/.test(x)) { //process rotation
|
||||
var ap = /rotate/.test(x) ? 'rotate' : 'skew', ra = ['X', 'Y', 'Z'], r = 0,
|
||||
_rt = {}, _sk = {}, rt = ap === 'rotate' ? _rt : _sk;
|
||||
for (r; r < 3; r++) {
|
||||
var v = ra[r];
|
||||
if ( t[ap+v] !== undefined && x !== 'skewZ' ) {
|
||||
rt[ap+v] = K.pp(ap + v, t[ap+v]);
|
||||
}
|
||||
}
|
||||
|
||||
tr[ap] = rt;
|
||||
} else if ( x === 'translate' || x === 'rotate' || x === 'scale' ) { //process 2d translation / rotation
|
||||
tr[x] = K.pp(x, t[x]);
|
||||
}
|
||||
|
||||
_st['transform'] = tr;
|
||||
|
||||
} else if (_tf.indexOf(x) === -1) {
|
||||
_st[x] = K.pp(x, t[x]);
|
||||
}
|
||||
}
|
||||
return _st;
|
||||
};
|
||||
|
||||
// _cls _sc _op _bm _tp _bg _tf
|
||||
K.pp = function(p, v) {//process single property
|
||||
if (_tf.indexOf(p) !== -1) {
|
||||
var t = p.replace(/X|Y|Z/, ''), tv;
|
||||
if (p === 'translate3d') {
|
||||
tv = v.split(',');
|
||||
return {
|
||||
translateX : { value: K.truD(tv[0]).v, unit: K.truD(tv[0]).u },
|
||||
translateY : { value: K.truD(tv[1]).v, unit: K.truD(tv[1]).u },
|
||||
translateZ : { value: K.truD(tv[2]).v, unit: K.truD(tv[2]).u }
|
||||
};
|
||||
} else if (p !== 'translate' && t === 'translate') {
|
||||
return { value: K.truD(v).v, unit: (K.truD(v).u||'px') };
|
||||
} else if (p !== 'rotate' && (t === 'skew' || t === 'rotate') && p !== 'skewZ' ) {
|
||||
return { value: K.truD(v).v, unit: (K.truD(v,p).u||'deg') };
|
||||
} else if (p === 'translate') {
|
||||
tv = typeof v === 'string' ? v.split(',') : v; var t2d = {};
|
||||
if (tv instanceof Array) {
|
||||
t2d.x = { value: K.truD(tv[0]).v, unit: K.truD(tv[0]).u },
|
||||
t2d.y = { value: K.truD(tv[1]).v, unit: K.truD(tv[1]).u }
|
||||
} else {
|
||||
t2d.x = { value: K.truD(tv).v, unit: K.truD(tv).u },
|
||||
t2d.y = { value: 0, unit: 'px' }
|
||||
}
|
||||
return t2d;
|
||||
} else if (p === 'rotate') {
|
||||
var r2d = {};
|
||||
r2d.z = { value: parseInt(v, 10), unit: (K.truD(v,p).u||'deg') };
|
||||
return r2d;
|
||||
} else if (p === 'scale') {
|
||||
return { value: parseFloat(v, 10) };
|
||||
}
|
||||
}
|
||||
if (_tp.indexOf(p) !== -1 || _bm.indexOf(p) !== -1) {
|
||||
return { value: K.truD(v).v, unit: K.truD(v).u };
|
||||
}
|
||||
if (_op.indexOf(p) !== -1) {
|
||||
return { value: parseFloat(v, 10) };
|
||||
}
|
||||
if (_sc.indexOf(p) !== -1) {
|
||||
return { value: parseFloat(v, 10) };
|
||||
}
|
||||
if (_clp.indexOf(p) !== -1) {
|
||||
if ( v instanceof Array ){
|
||||
return [ K.truD(v[0]), K.truD(v[1]), K.truD(v[2]), K.truD(v[3]) ];
|
||||
} else {
|
||||
var ci;
|
||||
if ( /rect/.test(v) ) {
|
||||
ci = v.replace(/rect|\(|\)/g,'').split(/\s|\,/);
|
||||
} else if ( /auto|none|initial/.test(v) ){
|
||||
ci = _d[p];
|
||||
}
|
||||
return [ K.truD(ci[0]), K.truD(ci[1]), K.truD(ci[2]), K.truD(ci[3]) ];
|
||||
}
|
||||
}
|
||||
if (_cls.indexOf(p) !== -1) {
|
||||
return { value: K.truC(v) };
|
||||
}
|
||||
if (_bg.indexOf(p) !== -1) {
|
||||
if ( v instanceof Array ){
|
||||
return { x: K.truD(v[0])||{ v: 50, u: '%' }, y: K.truD(v[1])||{ v: 50, u: '%' } };
|
||||
} else {
|
||||
var posxy = v.replace(/top|left/g,0).replace(/right|bottom/g,100).replace(/center|middle/,50).split(/\s|\,/g),
|
||||
xp = K.truD(posxy[0]), yp = K.truD(posxy[1]);
|
||||
return { x: xp, y: yp };
|
||||
}
|
||||
}
|
||||
if (_rd.indexOf(p) !== -1) {
|
||||
var rad = K.truD(v);
|
||||
return { value: rad.v, unit: rad.u };
|
||||
}
|
||||
};
|
||||
|
||||
K.truD = function (d,p) { //true dimension returns { v = value, u = unit }
|
||||
var x = parseInt(d) || 0, mu = ['px','%','deg','rad','em','rem','vh','vw'], l = mu.length,
|
||||
y = getU();
|
||||
function getU() {
|
||||
var u,i=0;
|
||||
for (i;i<l;i++) { if ( typeof d === 'string' && d.indexOf(mu[i]) !== -1 ) u = mu[i]; }
|
||||
u = u !== undefined ? u : (p ? 'deg' : 'px')
|
||||
return u;
|
||||
}
|
||||
return { v: x, u: y };
|
||||
};
|
||||
|
||||
K.preventScroll = function (e) { // prevent mousewheel or touch events while tweening scroll
|
||||
var data = document.body.getAttribute('data-tweening');
|
||||
if (data && data === 'scroll') {
|
||||
e.preventDefault();
|
||||
}
|
||||
};
|
||||
|
||||
K.truC = function (v) { // replace transparent and transform any color to rgba()/rgb()
|
||||
var vrgb, y;
|
||||
if (/rgb|rgba/.test(v)) { //rgb will be fastest initialized
|
||||
vrgb = v.replace(/[^\d,]/g, '').split(','); y = vrgb[3] ? vrgb[3] : null;
|
||||
if (!y) {
|
||||
return { r: parseInt(vrgb[0]), g: parseInt(vrgb[1]), b: parseInt(vrgb[2]) };
|
||||
} else {
|
||||
return { r: parseInt(vrgb[0]), g: parseInt(vrgb[1]), b: parseInt(vrgb[2]), a: parseFloat(y) };
|
||||
}
|
||||
}
|
||||
if (/#/.test(v)) {
|
||||
return { r: K.htr(v).r, g: K.htr(v).g, b: K.htr(v).b };
|
||||
}
|
||||
if (/transparent|none|initial|inherit/.test(v)) {
|
||||
return { r: 0, g: 0, b: 0, a: 0 };
|
||||
}
|
||||
};
|
||||
|
||||
K.rth = function (r, g, b) { // transform rgb to hex or vice-versa | webkit browsers ignore HEX, always use RGB/RGBA
|
||||
return "#" + ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);
|
||||
};
|
||||
K.htr = function (hex) {
|
||||
// Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF")
|
||||
var shr = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
|
||||
hex = hex.replace(shr, function (m, r, g, b) {
|
||||
return r + r + g + g + b + b;
|
||||
});
|
||||
|
||||
var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
|
||||
return result ? {
|
||||
r: parseInt(result[1], 16),
|
||||
g: parseInt(result[2], 16),
|
||||
b: parseInt(result[3], 16)
|
||||
} : null;
|
||||
};
|
||||
|
||||
K.pe = function (es) { //process easing
|
||||
if ( typeof es === 'function') {
|
||||
return es;
|
||||
} else if ( typeof es === 'string' ) {
|
||||
if ( /easing|linear/.test(es) ) {
|
||||
return K.Easing[es]; //regular Robert Penner Easing Functions
|
||||
} else if ( /bezier/.test(es) ) {
|
||||
var bz = es.replace(/bezier|\s|\(|\)/g,'').split(','), i = 0, l = bz.length;
|
||||
for (i; i<l;i++) { bz[i] = parseFloat(bz[i]); }
|
||||
return K.Ease.Bezier(bz[0],bz[1],bz[2],bz[3]); //bezier easing
|
||||
} else if ( /physics/.test(es) ) {
|
||||
return K.Physics[es](); // predefined physics bezier based easing functions
|
||||
} else {
|
||||
return K.Ease[es](); // predefined bezier based easing functions
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
// core easing functions
|
||||
var _es = K.Easing = {};
|
||||
_es.linear = function (t) { return t; };
|
||||
|
||||
var _PI = Math.PI, _2PI = Math.PI * 2, _hPI = Math.PI / 2,
|
||||
_kea = 0.1, _kep = 0.4;
|
||||
|
||||
_es.easingSinusoidalIn = function(t) { return -Math.cos(t * _hPI) + 1; };
|
||||
_es.easingSinusoidalOut = function(t) { return Math.sin(t * _hPI); };
|
||||
_es.easingSinusoidalInOut = function(t) { return -0.5 * (Math.cos(_PI * t) - 1); };
|
||||
_es.easingQuadraticIn = function (t) { return t*t; };
|
||||
_es.easingQuadraticOut = function (t) { return t*(2-t); };
|
||||
_es.easingQuadraticInOut = function (t) { return t<.5 ? 2*t*t : -1+(4-2*t)*t; };
|
||||
_es.easingCubicIn = function (t) { return t*t*t; };
|
||||
_es.easingCubicOut = function (t) { return (--t)*t*t+1; };
|
||||
_es.easingCubicInOut = function (t) { return t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1; };
|
||||
_es.easingQuarticIn = function (t) { return t*t*t*t; };
|
||||
_es.easingQuarticOut = function (t) { return 1-(--t)*t*t*t; };
|
||||
_es.easingQuarticInOut = function (t) { return t<.5 ? 8*t*t*t*t : 1-8*(--t)*t*t*t; };
|
||||
_es.easingQuinticIn = function (t) { return t*t*t*t*t; };
|
||||
_es.easingQuinticOut = function (t) { return 1+(--t)*t*t*t*t; };
|
||||
_es.easingQuinticInOut = function (t) { return t<.5 ? 16*t*t*t*t*t : 1+16*(--t)*t*t*t*t; };
|
||||
_es.easingCircularIn = function(t) { return -(Math.sqrt(1 - (t * t)) - 1); };
|
||||
_es.easingCircularOut = function(t) { return Math.sqrt(1 - (t = t - 1) * t); };
|
||||
_es.easingCircularInOut = function(t) { return ((t*=2) < 1) ? -0.5 * (Math.sqrt(1 - t * t) - 1) : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1); };
|
||||
_es.easingExponentialIn = function(t) { return Math.pow(2, 10 * (t - 1)) - 0.001; };
|
||||
_es.easingExponentialOut = function(t) { return 1 - Math.pow(2, -10 * t); };
|
||||
_es.easingExponentialInOut = function(t) { return (t *= 2) < 1 ? 0.5 * Math.pow(2, 10 * (t - 1)) : 0.5 * (2 - Math.pow(2, -10 * (t - 1))); };
|
||||
_es.easingBackIn = function(t) { var s = 1.70158; return t * t * ((s + 1) * t - s); };
|
||||
_es.easingBackOut = function(t) { var s = 1.70158; return --t * t * ((s + 1) * t + s) + 1; };
|
||||
_es.easingBackInOut = function(t) { var s = 1.70158 * 1.525; if ((t *= 2) < 1) return 0.5 * (t * t * ((s + 1) * t - s)); return 0.5 * ((t -= 2) * t * ((s + 1) * t + s) + 2); };
|
||||
_es.easingElasticIn = function(t) {
|
||||
var s;
|
||||
if ( t === 0 ) return 0; if ( t === 1 ) return 1;
|
||||
if ( !_kea || _kea < 1 ) { _kea = 1; s = _kep / 4; } else s = _kep * Math.asin( 1 / _kea ) / _2PI;
|
||||
return - ( _kea * Math.pow( 2, 10 * ( t -= 1 ) ) * Math.sin( ( t - s ) * _2PI / _kep ) );
|
||||
};
|
||||
_es.easingElasticOut = function(t) {
|
||||
var s;
|
||||
if ( t === 0 ) return 0; if ( t === 1 ) return 1;
|
||||
if ( !_kea || _kea < 1 ) { _kea = 1; s = _kep / 4; } else s = _kep * Math.asin( 1 / _kea ) / _2PI ;
|
||||
return ( _kea * Math.pow( 2, - 10 * t) * Math.sin( ( t - s ) * _2PI / _kep ) + 1 );
|
||||
};
|
||||
_es.easingElasticInOut = function(t) {
|
||||
var s;
|
||||
if ( t === 0 ) return 0; if ( t === 1 ) return 1;
|
||||
if ( !_kea || _kea < 1 ) { _kea = 1; s = _kep / 4; } else s = _kep * Math.asin( 1 / _kea ) / _2PI ;
|
||||
if ( ( t *= 2 ) < 1 ) return - 0.5 * ( _kea * Math.pow( 2, 10 * ( t -= 1 ) ) * Math.sin( ( t - s ) * _2PI / _kep ) );
|
||||
return _kea * Math.pow( 2, -10 * ( t -= 1 ) ) * Math.sin( ( t - s ) * _2PI / _kep ) * 0.5 + 1;
|
||||
};
|
||||
_es.easingBounceIn = function(t) { return 1 - _es.easingBounceOut( 1 - t ); };
|
||||
_es.easingBounceOut = function(t) {
|
||||
if ( t < ( 1 / 2.75 ) ) { return 7.5625 * t * t; }
|
||||
else if ( t < ( 2 / 2.75 ) ) { return 7.5625 * ( t -= ( 1.5 / 2.75 ) ) * t + 0.75; }
|
||||
else if ( t < ( 2.5 / 2.75 ) ) { return 7.5625 * ( t -= ( 2.25 / 2.75 ) ) * t + 0.9375; }
|
||||
else {return 7.5625 * ( t -= ( 2.625 / 2.75 ) ) * t + 0.984375; }
|
||||
};
|
||||
_es.easingBounceInOut = function(t) { if ( t < 0.5 ) return _es.easingBounceIn( t * 2 ) * 0.5; return _es.easingBounceOut( t * 2 - 1 ) * 0.5 + 0.5;};
|
||||
|
||||
// single Tween object construct
|
||||
K.Tween = function (_el, _vS, _vE, _o) {
|
||||
this._el = _el; // element animation is applied to
|
||||
this._dr = _o&&_o.duration || 700; //duration
|
||||
this._r = _o&&_o.repeat || 0; // _repeat
|
||||
this._vSR = {}; // internal valuesStartRepeat
|
||||
this._vS = _vS; // valuesStart
|
||||
this._vE = _vE; // valuesEnd
|
||||
this._y = _o&&_o.yoyo || false; // _yoyo
|
||||
this.playing = false; // _isPlaying
|
||||
this.reversed = false; // _reversed
|
||||
this._rD = _o&&_o.repeatDelay || 0; // _repeatDelay
|
||||
this._dl = _o&&_o.delay || 0; //delay
|
||||
this._sT = null; // startTime
|
||||
this.paused = false; //_paused
|
||||
this._pST = null; //_pauseStartTime
|
||||
this._to = _o.transformOrigin; // transform-origin
|
||||
this._pp = _o.perspective; // perspective
|
||||
this._ppo = _o.perspectiveOrigin; // perspective origin
|
||||
this._ppp = _o.parentPerspective; // parent perspective
|
||||
this._pppo = _o.parentPerspectiveOrigin; // parent perspective origin
|
||||
this._rpr = _o.rpr || false; // internal option to process inline/computed style at start instead of init true/false
|
||||
this._hex = _o.keepHex || false; // option to keep hex for color tweens true/false
|
||||
this._e = _o && _o.easing ? K.pe(_o.easing) : K.Easing.linear; // _easing function
|
||||
this._cT = []; //_chainedTweens
|
||||
this._sC = _o&&_o.start || null; // _on StartCallback
|
||||
this._sCF = false; //_on StartCallbackFIRED
|
||||
this._uC = _o&&_o.update || null; // _on UpdateCallback
|
||||
this._cC = _o&&_o.complete || null; // _on CompleteCallback
|
||||
this._pC = _o&&_o.pause || null; // _on PauseCallback
|
||||
this._rC = _o&&_o.play || null; // _on ResumeCallback
|
||||
this._stC = _o&&_o.stop || null; // _on StopCallback
|
||||
this.repeat = this._r; // we cache the number of repeats to be able to put it back after all cycles finish
|
||||
|
||||
K._queue(this);
|
||||
};
|
||||
|
||||
var w = K.Tween.prototype;
|
||||
|
||||
w.start = function (t) {
|
||||
this.scrollIn();
|
||||
var f = {};
|
||||
|
||||
K.perspective(this._el,this); // apply the perspective and transform origin
|
||||
|
||||
if ( this._rpr ) { // on start we reprocess the valuesStart for TO() method
|
||||
f = this.prS();
|
||||
this._vS = {};
|
||||
this._vS = K.prP(f,false);
|
||||
|
||||
for ( var p in this._vS ) {
|
||||
if ( p === 'transform' && (p in this._vE) ){
|
||||
for ( var sp in this._vS[p]) {
|
||||
if (!(sp in this._vE[p])) { this._vE[p][sp] = {}; }
|
||||
for ( var spp in this._vS[p][sp] ) { // 3rd level
|
||||
if ( this._vS[p][sp][spp].value !== undefined ) {
|
||||
if (!(spp in this._vE[p][sp])) { this._vE[p][sp][spp] = {}; }
|
||||
for ( var sppp in this._vS[p][sp][spp]) { // spp = translateX | rotateX | skewX | rotate2d
|
||||
if ( !(sppp in this._vE[p][sp][spp])) {
|
||||
this._vE[p][sp][spp][sppp] = this._vS[p][sp][spp][sppp]; // sppp = unit | value
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if ( 'value' in this._vS[p][sp] && (!('value' in this._vE[p][sp])) ) { // 2nd level
|
||||
for ( var spp1 in this._vS[p][sp] ) { // scale
|
||||
if (!(spp1 in this._vE[p][sp])) {
|
||||
this._vE[p][sp][spp1] = this._vS[p][sp][spp1]; // spp = unit | value
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for ( var e in this._vE ) {
|
||||
this._vSR[e] = this._vS[e];
|
||||
}
|
||||
if (!this._sCF) {
|
||||
if (this._sC) { this._sC.call(); }
|
||||
this._sCF = true;
|
||||
}
|
||||
|
||||
// now it's a good time to start
|
||||
_tws.push(this);
|
||||
this.playing = true;
|
||||
this.paused = false;
|
||||
this._sCF = false;
|
||||
this._sT = t || window.performance.now();
|
||||
this._sT += this._dl;
|
||||
|
||||
if (!_t) K._t();
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
w.stop = function () {
|
||||
if (!this.paused && this.playing) {
|
||||
K.remove(this);
|
||||
this.playing = false;
|
||||
this.paused = false;
|
||||
this.scrollOut();
|
||||
|
||||
if (this._stC !== null) {
|
||||
this._stC.call();
|
||||
}
|
||||
this.stopChainedTweens();
|
||||
this.close();
|
||||
}
|
||||
return this;
|
||||
};
|
||||
|
||||
w.pause = function() {
|
||||
if (!this.paused && this.playing) {
|
||||
K.remove(this);
|
||||
this.paused = true;
|
||||
this._pST = window.performance.now();
|
||||
if (this._pC !== null) {
|
||||
this._pC.call();
|
||||
}
|
||||
}
|
||||
return this;
|
||||
};
|
||||
|
||||
w.play = w.resume = function () {
|
||||
if (this.paused && this.playing) {
|
||||
this.paused = false;
|
||||
if (this._rC !== null) { this._rC.call(); }
|
||||
this._sT += window.performance.now() - this._pST;
|
||||
K.add(this);
|
||||
if (!_t) K._t(); // restart ticking if stopped
|
||||
}
|
||||
return this;
|
||||
};
|
||||
|
||||
w.reverse = function () {
|
||||
if (this._y) {
|
||||
for (var p in this._vE) {
|
||||
var tmp = this._vSR[p];
|
||||
this._vSR[p] = this._vE[p];
|
||||
this._vE[p] = tmp;
|
||||
this._vS[p] = this._vSR[p];
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
w.chain = function () { this._cT = arguments; return this; };
|
||||
|
||||
w.stopChainedTweens = function () {
|
||||
var i = 0, ctl =this._cT.length;
|
||||
for (i; i < ctl; i++) {
|
||||
this._cT[i].stop();
|
||||
}
|
||||
};
|
||||
|
||||
w.scrollOut = function(){ //prevent scroll when tweening scroll
|
||||
if ( 'scroll' in this._vE || 'scrollTop' in this._vE ) {
|
||||
this.removeListeners();
|
||||
document.body.removeAttribute('data-tweening');
|
||||
}
|
||||
};
|
||||
|
||||
w.scrollIn = function(){
|
||||
if ( 'scroll' in this._vE || 'scrollTop' in this._vE ) {
|
||||
if (!document.body.getAttribute('data-tweening') ) {
|
||||
document.body.setAttribute('data-tweening', 'scroll');
|
||||
this.addListeners();
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
w.addListeners = function () {
|
||||
document.addEventListener(_ev, K.preventScroll, false);
|
||||
};
|
||||
|
||||
w.removeListeners = function () {
|
||||
document.removeEventListener(_ev, K.preventScroll, false);
|
||||
};
|
||||
|
||||
//prepare valuesStart for .to() method
|
||||
w.prS = function () {
|
||||
var f = {}, el = this._el, to = this._vS, cs = this.gIS('transform'), deg = ['rotate','skew'], ax = ['X','Y','Z'];
|
||||
|
||||
for (var p in to){
|
||||
if ( _tf.indexOf(p) !== -1 ) {
|
||||
var r2d = (p === 'rotate' || p === 'translate' || p === 'scale');
|
||||
if ( /translate/.test(p) && p !== 'translate' ) {
|
||||
f['translate3d'] = cs['translate3d'] || _d[p];
|
||||
} else if ( r2d ) { // 2d transforms
|
||||
f[p] = cs[p] || _d[p];
|
||||
} else if ( !r2d && /rotate|skew/.test(p) ) { // all angles
|
||||
for (var d=0; d<2; d++) {
|
||||
for (var a = 0; a<3; a++) {
|
||||
var s = deg[d]+ax[a];
|
||||
if (_tf.indexOf(s) !== -1 && (s in to) ) { f[s] = cs[s] || _d[s]; }
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if ( _sc.indexOf(p) === -1 ) {
|
||||
if (p === 'opacity' && _isIE8 ) { // handle IE8 opacity
|
||||
var co = this.gCS('filter');
|
||||
f['opacity'] = typeof co === 'number' ? co : _d['opacity'];
|
||||
} else {
|
||||
f[p] = this.gCS(p) || _d[p];
|
||||
}
|
||||
} else {
|
||||
f[p] = (el === null || el === undefined) ? (window.pageYOffset || _sct.scrollTop) : el.scrollTop;
|
||||
}
|
||||
}
|
||||
}
|
||||
for ( var p in cs ){ // also add to _vS values from previous tweens
|
||||
if ( _tf.indexOf(p) !== -1 && (!( p in to )) ) {
|
||||
f[p] = cs[p] || _d[p];
|
||||
}
|
||||
}
|
||||
return f;
|
||||
};
|
||||
|
||||
w.gIS = function(p) { // gIS = get transform style for element from cssText for .to() method, the sp is for transform property
|
||||
if (!this._el) return; // if the scroll applies to `window` it returns as it has no styling
|
||||
var l = this._el, cst = l.style.cssText,//the cssText
|
||||
trsf = {}; //the transform object
|
||||
// if we have any inline style in the cssText attribute, usually it has higher priority
|
||||
var css = cst.replace(/\s/g,'').split(';'), i=0, csl = css.length;
|
||||
for ( i; i<csl; i++ ){
|
||||
if ( /transform/.test(css[i])) {
|
||||
var tps = css[i].split(':')[1].split(')'), k=0, tpl = tps.length; //all transform properties
|
||||
for ( k; k< tpl; k++){
|
||||
var tp = tps[k].split('('); //each transform property
|
||||
if ( tp[0] !== '' && _tf.indexOf(tp) ){
|
||||
trsf[tp[0]] = /translate3d/.test(tp[0]) ? tp[1].split(',') : tp[1];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return trsf;
|
||||
};
|
||||
|
||||
w.gCS = function (p) { // gCS = get style property for element from computedStyle for .to() method
|
||||
var el = this._el, cs = window.getComputedStyle(el) || el.currentStyle, //the computed style
|
||||
ppp = ( !_isIE8 && _pfT && ( /transform|Radius/.test(p) ) ) ? ('-'+ _pf.toLowerCase()+'-'+p) : p, //prefixed property for CSS match
|
||||
s = ( (_pfT && p==='transform' ) || (_pfT && _rd.indexOf(p) !== -1)) // s the property style value
|
||||
? cs[ppp]
|
||||
: cs[p];
|
||||
|
||||
if ( p !== 'transform' && (ppp in cs) ) {
|
||||
if ( s ){
|
||||
if (ppp==='filter') { // handle IE8 opacity
|
||||
var si1 = parseInt(s.split('=')[1].replace(')','')), si = parseFloat(si1/100);
|
||||
return si;
|
||||
} else {
|
||||
return s;
|
||||
}
|
||||
} else {
|
||||
return _d[p];
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
w.close = function () {
|
||||
var self = this;
|
||||
setTimeout(function(){
|
||||
var i = _tws.indexOf(self);
|
||||
if (i === _tws.length-1) { K.s(); }
|
||||
if (self.repeat > 0) { self._r = self.repeat; }
|
||||
if (self._y && self.reversed===true) { self.reverse(); self.reversed = false; }
|
||||
self.playing = false;
|
||||
},61)
|
||||
};
|
||||
|
||||
// the multi elements Tween constructs
|
||||
K.TweensAT = function (els, vE, o) { // .to
|
||||
this.tweens = []; var i, tl = els.length, _o = [];
|
||||
for ( i = 0; i < tl; i++ ) {
|
||||
_o[i] = o || {}; o.delay = o.delay || 0;
|
||||
_o[i].delay = i>0 ? o.delay + (o.offset||0) : o.delay;
|
||||
this.tweens.push( K.to(els[i], vE, _o[i]) );
|
||||
}
|
||||
};
|
||||
K.TweensFT = function (els, vS, vE, o) { // .fromTo
|
||||
this.tweens = []; var i, tl = els.length, _o = [];
|
||||
for ( i = 0; i < tl; i++ ) {
|
||||
_o[i] = o || {}; o.delay = o.delay || 0;
|
||||
_o[i].delay = i>0 ? o.delay + (o.offset||0) : o.delay;
|
||||
this.tweens.push( K.fromTo(els[i], vS, vE, _o[i]) );
|
||||
}
|
||||
};
|
||||
var ws = K.TweensAT.prototype = K.TweensFT.prototype;
|
||||
ws.start = function(t){
|
||||
t = t || window.performance.now();
|
||||
var i, tl = this.tweens.length;
|
||||
for ( i = 0; i < tl; i++ ) {
|
||||
this.tweens[i].start(t);
|
||||
}
|
||||
return this;
|
||||
}
|
||||
ws.stop = function(){ for ( var i = 0; i < this.tweens.length; i++ ) { this.tweens[i].stop(); } return this; }
|
||||
ws.pause = function(){ for ( var i = 0; i < this.tweens.length; i++ ) { this.tweens[i].pause(); } return this; }
|
||||
ws.play = ws.resume = function(){ for ( var i = 0; i < this.tweens.length; i++ ) { this.tweens[i].play(); } return this; }
|
||||
|
||||
|
||||
//returns browser prefix
|
||||
function getPrefix() {
|
||||
var div = document.createElement('div'), i = 0, pf = ['Moz', 'moz', 'Webkit', 'webkit', 'O', 'o', 'Ms', 'ms'], pl = pf.length,
|
||||
s = ['MozTransform', 'mozTransform', 'WebkitTransform', 'webkitTransform', 'OTransform', 'oTransform', 'MsTransform', 'msTransform'];
|
||||
|
||||
for (i; i < pl; i++) { if (s[i] in div.style) { return pf[i]; } }
|
||||
div = null;
|
||||
}
|
||||
|
||||
return K;
|
||||
}));
|
||||
Loading…
Reference in a new issue