//-------------------------------------------------------------------------------------- // UTILITIES //-------------------------------------------------------------------------------------- /* * Yuichi Tateno. * http://rails2u.com/ * * The MIT License * -------- * Copyright (c) 2007 Yuichi Tateno. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. Last Modified By Frank Di Luzio 17.04.10 http://www.frank-ist-hier.de Added getPos to Utils Class from quirksmode.com Changed the prefix and suffix which was broken when using filter in IE. Added killTween to interupt tween Added Object to objects list to identify a specific element when killing an animation. */ var JSTweener = { looping: false, frameRate: 60, objects: [], defaultOptions: { time: 1, transition: 'easeoutexpo', delay: 0, prefix: {}, suffix: {}, onStart: undefined, onStartParams: undefined, onUpdate: undefined, onUpdateParams: undefined, onComplete: undefined, onCompleteParams: undefined, killTween:false }, inited: false, easingFunctionsLowerCase: {}, init: function() { this.inited = true; for (var key in JSTweener.easingFunctions) { this.easingFunctionsLowerCase[key.toLowerCase()] = JSTweener.easingFunctions[key]; } }, toNumber: function(value, prefix, suffix) { // for style if (!suffix){ suffix = 'px'; } value = value.toString().replace(prefix, ''); value = value.toString().replace(suffix, ''); return Number(value); }, addTween: function(el, obj, options) { var self = this; if (!this.inited) this.init(); var o = {}; o.target = obj; o.targetPropeties = {}; o.el = el; 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.targetPropeties[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); if (!self.looping) { self.looping = true; self.eventLoop.call(self); } }, o.delay * 1000); return this}, eventLoop: 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.targetPropeties) { var tP = o.targetPropeties[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' && !o.killTween) { if (o.onCompleteParams ) { o.onComplete.apply(o, o.onCompleteParams); } else { o.onComplete(); } } } else { for (var property in o.targetPropeties) { var tP = o.targetPropeties[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(); } } if (o.killTween ){this.objects.splice(i, 1);} } } if (this.objects.length > 0) { var self = this; setTimeout(function() { self.eventLoop() }, 1000/self.frameRate); } else { this.looping = false; } } }; JSTweener.Utils = { bezier2: function(t, p0, p1, p2) { return (1-t) * (1-t) * p0 + 2 * t * (1-t) * p1 + t * t * p2; }, bezier3: function(t, p0, p1, p2, p3) { return Math.pow(1-t, 3) * p0 + 3 * t * Math.pow(1-t, 2) * p1 + 3 * t * t * (1-t) * p2 + t * t * t * p3; }, allSetStyleProperties: function(element) { var css; if (document.defaultView && document.defaultView.getComputedStyle) { css = document.defaultView.getComputedStyle(element, null); } else { css = element.currentStyle } for (var key in css) { if (!key.match(/^\d+$/)) { try { element.style[key] = css[key]; } catch(e) {}; } } }, getPos: function(obj){ var curleft = curtop = 0; if (obj.offsetParent) { do { curleft += obj.offsetLeft; curtop += obj.offsetTop; } while (obj = obj.offsetParent); return {x:curleft, y:curtop}; } } }; /* * 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; //=============================================================== // GET STYLE OF ELEMENT //=============================================================== function getStyle(el,styleProp){ if (el.currentStyle) var y = el.currentStyle[styleProp]; else if (window.getComputedStyle) var y = document.defaultView.getComputedStyle(el,null).getPropertyValue(styleProp); return y; };