/* * READ THIS! * This is NOT the official version of JSTweener, it has been modified * to gain some performance stripping unneeded features. The use of * this version of the class is NOT recommended. -- Mr.doob * * REMODIFIED by sole! :P * * http://coderepos.org/share/wiki/JSTweener * * Yuichi Tateno. * http://rails2u.com/ * * The MIT License * -------- * Copyright (c) 2007 Yuichi Tateno. * * http://www.opensource.org/licenses/mit-license.php */ var JSTweener = { objects: [], defaultOptions: { time: 1, transition: 'easeoutexpo', delay: 0, prefix: {}, suffix: {}, onStart: undefined, onStartParams: undefined, onUpdate: undefined, onUpdateParams: undefined, onComplete: undefined, onCompleteParams: undefined }, easingFunctionsLowerCase: {}, init: function() { for (var key in JSTweener.easingFunctions) { this.easingFunctionsLowerCase[key.toLowerCase()] = JSTweener.easingFunctions[key]; } }, toNumber: function(value, prefix, suffix) { if (!suffix) suffix = 'px'; return value.toString().match(/[0-9]/) ? Number(value.toString().replace( new RegExp(suffix + '$'), '' ).replace( new RegExp('^' + (prefix ? prefix : '')), '' )) : 0; }, addTween: function(obj, options) { var self = this; for (var i = 0; i < self.objects.length; i++) { if (self.objects[i].target == obj) self.objects.splice(i, 1); } var o = {}; o.target = obj; o.targetProperties = {}; for (var key in this.defaultOptions) { if (typeof options[key] != 'undefined') { o[key] = options[key]; delete options[key]; } else { o[key] = this.defaultOptions[key]; } } if (typeof o.transition == 'function') { o.easing = o.transition; } else { o.easing = this.easingFunctionsLowerCase[o.transition.toLowerCase()]; } for (var key in options) { if (!o.prefix[key]) o.prefix[key] = ''; if (!o.suffix[key]) o.suffix[key] = ''; var sB = this.toNumber(obj[key], o.prefix[key], o.suffix[key]); o.targetProperties[key] = { b: sB, c: options[key] - sB }; } setTimeout(function() { o.startTime = (new Date() - 0); o.endTime = o.time * 1000 + o.startTime; if (typeof o.onStart == 'function') { if (o.onStartParams) { o.onStart.apply(o, o.onStartParams); } else { o.onStart(); } } self.objects.push(o); }, o.delay * 1000); }, update: function() { var now = (new Date() - 0); for (var i = 0; i < this.objects.length; i++) { var o = this.objects[i]; var t = now - o.startTime; var d = o.endTime - o.startTime; if (t >= d) { for (var property in o.targetProperties) { var tP = o.targetProperties[property]; try { o.target[property] = o.prefix[property] + (tP.b + tP.c) + o.suffix[property]; } catch(e) {} } this.objects.splice(i, 1); if (typeof o.onUpdate == 'function') { if (o.onUpdateParams) { o.onUpdate.apply(o, o.onUpdateParams); } else { o.onUpdate(); } } if (typeof o.onComplete == 'function') { if (o.onCompleteParams) { o.onComplete.apply(o, o.onCompleteParams); } else { o.onComplete(); } } } else { for (var property in o.targetProperties) { var tP = o.targetProperties[property]; var val = o.easing(t, tP.b, tP.c, d); try { // FIXME:For IE. A Few times IE (style.width||style.height) = value is throw error... o.target[property] = o.prefix[property] + val + o.suffix[property]; } catch(e) {} } if (typeof o.onUpdate == 'function') { if (o.onUpdateParams) { o.onUpdate.apply(o, o.onUpdateParams); } else { o.onUpdate(); } } } } }, cancelTweens : function() { this.objects = []; } }; /* * JSTweener.easingFunctions is * Tweener's easing functions (Penner's Easing Equations) porting to JavaScript. * http://code.google.com/p/tweener/ */ JSTweener.easingFunctions = { easeNone: function(t, b, c, d) { return c*t/d + b; }, easeInQuad: function(t, b, c, d) { return c*(t/=d)*t + b; }, easeOutQuad: function(t, b, c, d) { return -c *(t/=d)*(t-2) + b; }, easeInOutQuad: function(t, b, c, d) { if((t/=d/2) < 1) return c/2*t*t + b; return -c/2 *((--t)*(t-2) - 1) + b; }, easeInCubic: function(t, b, c, d) { return c*(t/=d)*t*t + b; }, easeOutCubic: function(t, b, c, d) { return c*((t=t/d-1)*t*t + 1) + b; }, easeInOutCubic: function(t, b, c, d) { if((t/=d/2) < 1) return c/2*t*t*t + b; return c/2*((t-=2)*t*t + 2) + b; }, easeOutInCubic: function(t, b, c, d) { if(t < d/2) return JSTweener.easingFunctions.easeOutCubic(t*2, b, c/2, d); return JSTweener.easingFunctions.easeInCubic((t*2)-d, b+c/2, c/2, d); }, easeInQuart: function(t, b, c, d) { return c*(t/=d)*t*t*t + b; }, easeOutQuart: function(t, b, c, d) { return -c *((t=t/d-1)*t*t*t - 1) + b; }, easeInOutQuart: function(t, b, c, d) { if((t/=d/2) < 1) return c/2*t*t*t*t + b; return -c/2 *((t-=2)*t*t*t - 2) + b; }, easeOutInQuart: function(t, b, c, d) { if(t < d/2) return JSTweener.easingFunctions.easeOutQuart(t*2, b, c/2, d); return JSTweener.easingFunctions.easeInQuart((t*2)-d, b+c/2, c/2, d); }, easeInQuint: function(t, b, c, d) { return c*(t/=d)*t*t*t*t + b; }, easeOutQuint: function(t, b, c, d) { return c*((t=t/d-1)*t*t*t*t + 1) + b; }, easeInOutQuint: function(t, b, c, d) { if((t/=d/2) < 1) return c/2*t*t*t*t*t + b; return c/2*((t-=2)*t*t*t*t + 2) + b; }, easeOutInQuint: function(t, b, c, d) { if(t < d/2) return JSTweener.easingFunctions.easeOutQuint(t*2, b, c/2, d); return JSTweener.easingFunctions.easeInQuint((t*2)-d, b+c/2, c/2, d); }, easeInSine: function(t, b, c, d) { return -c * Math.cos(t/d *(Math.PI/2)) + c + b; }, easeOutSine: function(t, b, c, d) { return c * Math.sin(t/d *(Math.PI/2)) + b; }, easeInOutSine: function(t, b, c, d) { return -c/2 *(Math.cos(Math.PI*t/d) - 1) + b; }, easeOutInSine: function(t, b, c, d) { if(t < d/2) return JSTweener.easingFunctions.easeOutSine(t*2, b, c/2, d); return JSTweener.easingFunctions.easeInSine((t*2)-d, b+c/2, c/2, d); }, easeInExpo: function(t, b, c, d) { return(t==0) ? b : c * Math.pow(2, 10 *(t/d - 1)) + b - c * 0.001; }, easeOutExpo: function(t, b, c, d) { return(t==d) ? b+c : c * 1.001 *(-Math.pow(2, -10 * t/d) + 1) + b; }, easeInOutExpo: function(t, b, c, d) { if(t==0) return b; if(t==d) return b+c; if((t/=d/2) < 1) return c/2 * Math.pow(2, 10 *(t - 1)) + b - c * 0.0005; return c/2 * 1.0005 *(-Math.pow(2, -10 * --t) + 2) + b; }, easeOutInExpo: function(t, b, c, d) { if(t < d/2) return JSTweener.easingFunctions.easeOutExpo(t*2, b, c/2, d); return JSTweener.easingFunctions.easeInExpo((t*2)-d, b+c/2, c/2, d); }, easeInCirc: function(t, b, c, d) { return -c *(Math.sqrt(1 -(t/=d)*t) - 1) + b; }, easeOutCirc: function(t, b, c, d) { return c * Math.sqrt(1 -(t=t/d-1)*t) + b; }, easeInOutCirc: function(t, b, c, d) { if((t/=d/2) < 1) return -c/2 *(Math.sqrt(1 - t*t) - 1) + b; return c/2 *(Math.sqrt(1 -(t-=2)*t) + 1) + b; }, easeOutInCirc: function(t, b, c, d) { if(t < d/2) return JSTweener.easingFunctions.easeOutCirc(t*2, b, c/2, d); return JSTweener.easingFunctions.easeInCirc((t*2)-d, b+c/2, c/2, d); }, easeInElastic: function(t, b, c, d, a, p) { var s; if(t==0) return b; if((t/=d)==1) return b+c; if(!p) p=d*.3; if(!a || a < Math.abs(c)) { a=c; s=p/4; } else s = p/(2*Math.PI) * Math.asin(c/a); return -(a*Math.pow(2,10*(t-=1)) * Math.sin((t*d-s)*(2*Math.PI)/p )) + b; }, easeOutElastic: function(t, b, c, d, a, p) { var s; if(t==0) return b; if((t/=d)==1) return b+c; if(!p) p=d*.3; if(!a || a < Math.abs(c)) { a=c; s=p/4; } else s = p/(2*Math.PI) * Math.asin(c/a); return(a*Math.pow(2,-10*t) * Math.sin((t*d-s)*(2*Math.PI)/p ) + c + b); }, easeInOutElastic: function(t, b, c, d, a, p) { var s; if(t==0) return b; if((t/=d/2)==2) return b+c; if(!p) p=d*(.3*1.5); if(!a || a < Math.abs(c)) { a=c; s=p/4; } else s = p/(2*Math.PI) * Math.asin(c/a); if(t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin((t*d-s)*(2*Math.PI)/p )) + b; return a*Math.pow(2,-10*(t-=1)) * Math.sin((t*d-s)*(2*Math.PI)/p )*.5 + c + b; }, easeOutInElastic: function(t, b, c, d, a, p) { if(t < d/2) return JSTweener.easingFunctions.easeOutElastic(t*2, b, c/2, d, a, p); return JSTweener.easingFunctions.easeInElastic((t*2)-d, b+c/2, c/2, d, a, p); }, easeInBack: function(t, b, c, d, s) { if(s == undefined) s = 1.70158; return c*(t/=d)*t*((s+1)*t - s) + b; }, easeOutBack: function(t, b, c, d, s) { if(s == undefined) s = 1.70158; return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b; }, easeInOutBack: function(t, b, c, d, s) { if(s == undefined) s = 1.70158; if((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b; return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b; }, easeOutInBack: function(t, b, c, d, s) { if(t < d/2) return JSTweener.easingFunctions.easeOutBack(t*2, b, c/2, d, s); return JSTweener.easingFunctions.easeInBack((t*2)-d, b+c/2, c/2, d, s); }, easeInBounce: function(t, b, c, d) { return c - JSTweener.easingFunctions.easeOutBounce(d-t, 0, c, d) + b; }, easeOutBounce: function(t, b, c, d) { if((t/=d) <(1/2.75)) { return c*(7.5625*t*t) + b; } else if(t <(2/2.75)) { return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b; } else if(t <(2.5/2.75)) { return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b; } else { return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b; } }, easeInOutBounce: function(t, b, c, d) { if(t < d/2) return JSTweener.easingFunctions.easeInBounce(t*2, 0, c, d) * .5 + b; else return JSTweener.easingFunctions.easeOutBounce(t*2-d, 0, c, d) * .5 + c*.5 + b; }, easeOutInBounce: function(t, b, c, d) { if(t < d/2) return JSTweener.easingFunctions.easeOutBounce(t*2, b, c/2, d); return JSTweener.easingFunctions.easeInBounce((t*2)-d, b+c/2, c/2, d); } }; JSTweener.easingFunctions.linear = JSTweener.easingFunctions.easeNone;