--- /dev/null
+//fgnass.github.com/spin.js#v1.3
+
+/**
+ * Copyright (c) 2011-2013 Felix Gnass
+ * Licensed under the MIT license
+ */
+(function(root, factory) {
+
+ /* CommonJS */
+ if (typeof exports == 'object') module.exports = factory()
+
+ /* AMD module */
+ else if (typeof define == 'function' && define.amd) define(factory)
+
+ /* Browser global */
+ else root.Spinner = factory()
+}
+(this, function() {
+ "use strict";
+
+ var prefixes = ['webkit', 'Moz', 'ms', 'O'] /* Vendor prefixes */
+ , animations = {} /* Animation rules keyed by their name */
+ , useCssAnimations /* Whether to use CSS animations or setTimeout */
+
+ /**
+ * Utility function to create elements. If no tag name is given,
+ * a DIV is created. Optionally properties can be passed.
+ */
+ function createEl(tag, prop) {
+ var el = document.createElement(tag || 'div')
+ , n
+
+ for(n in prop) el[n] = prop[n]
+ return el
+ }
+
+ /**
+ * Appends children and returns the parent.
+ */
+ function ins(parent /* child1, child2, ...*/) {
+ for (var i=1, n=arguments.length; i<n; i++)
+ parent.appendChild(arguments[i])
+
+ return parent
+ }
+
+ /**
+ * Insert a new stylesheet to hold the @keyframe or VML rules.
+ */
+ var sheet = (function() {
+ var el = createEl('style', {type : 'text/css'})
+ ins(document.getElementsByTagName('head')[0], el)
+ return el.sheet || el.styleSheet
+ }())
+
+ /**
+ * Creates an opacity keyframe animation rule and returns its name.
+ * Since most mobile Webkits have timing issues with animation-delay,
+ * we create separate rules for each line/segment.
+ */
+ function addAnimation(alpha, trail, i, lines) {
+ var name = ['opacity', trail, ~~(alpha*100), i, lines].join('-')
+ , start = 0.01 + i/lines * 100
+ , z = Math.max(1 - (1-alpha) / trail * (100-start), alpha)
+ , prefix = useCssAnimations.substring(0, useCssAnimations.indexOf('Animation')).toLowerCase()
+ , pre = prefix && '-' + prefix + '-' || ''
+
+ if (!animations[name]) {
+ sheet.insertRule(
+ '@' + pre + 'keyframes ' + name + '{' +
+ '0%{opacity:' + z + '}' +
+ start + '%{opacity:' + alpha + '}' +
+ (start+0.01) + '%{opacity:1}' +
+ (start+trail) % 100 + '%{opacity:' + alpha + '}' +
+ '100%{opacity:' + z + '}' +
+ '}', sheet.cssRules.length)
+
+ animations[name] = 1
+ }
+
+ return name
+ }
+
+ /**
+ * Tries various vendor prefixes and returns the first supported property.
+ */
+ function vendor(el, prop) {
+ var s = el.style
+ , pp
+ , i
+
+ if(s[prop] !== undefined) return prop
+ prop = prop.charAt(0).toUpperCase() + prop.slice(1)
+ for(i=0; i<prefixes.length; i++) {
+ pp = prefixes[i]+prop
+ if(s[pp] !== undefined) return pp
+ }
+ }
+
+ /**
+ * Sets multiple style properties at once.
+ */
+ function css(el, prop) {
+ for (var n in prop)
+ el.style[vendor(el, n)||n] = prop[n]
+
+ return el
+ }
+
+ /**
+ * Fills in default values.
+ */
+ function merge(obj) {
+ for (var i=1; i < arguments.length; i++) {
+ var def = arguments[i]
+ for (var n in def)
+ if (obj[n] === undefined) obj[n] = def[n]
+ }
+ return obj
+ }
+
+ /**
+ * Returns the absolute page-offset of the given element.
+ */
+ function pos(el) {
+ var o = { x:el.offsetLeft, y:el.offsetTop }
+ while((el = el.offsetParent))
+ o.x+=el.offsetLeft, o.y+=el.offsetTop
+
+ return o
+ }
+
+ // Built-in defaults
+
+ var defaults = {
+ lines: 12, // The number of lines to draw
+ length: 7, // The length of each line
+ width: 5, // The line thickness
+ radius: 10, // The radius of the inner circle
+ rotate: 0, // Rotation offset
+ corners: 1, // Roundness (0..1)
+ color: '#000', // #rgb or #rrggbb
+ direction: 1, // 1: clockwise, -1: counterclockwise
+ speed: 1, // Rounds per second
+ trail: 100, // Afterglow percentage
+ opacity: 1/4, // Opacity of the lines
+ fps: 20, // Frames per second when using setTimeout()
+ zIndex: 2e9, // Use a high z-index by default
+ className: 'spinner', // CSS class to assign to the element
+ top: 'auto', // center vertically
+ left: 'auto', // center horizontally
+ position: 'relative' // element position
+ }
+
+ /** The constructor */
+ function Spinner(o) {
+ if (typeof this == 'undefined') return new Spinner(o)
+ this.opts = merge(o || {}, Spinner.defaults, defaults)
+ }
+
+ // Global defaults that override the built-ins:
+ Spinner.defaults = {}
+
+ merge(Spinner.prototype, {
+
+ /**
+ * Adds the spinner to the given target element. If this instance is already
+ * spinning, it is automatically removed from its previous target b calling
+ * stop() internally.
+ */
+ spin: function(target) {
+ this.stop()
+
+ var self = this
+ , o = self.opts
+ , el = self.el = css(createEl(0, {className: o.className}), {position: o.position, width: 0, zIndex: o.zIndex})
+ , mid = o.radius+o.length+o.width
+ , ep // element position
+ , tp // target position
+
+ if (target) {
+ target.insertBefore(el, target.firstChild||null)
+ tp = pos(target)
+ ep = pos(el)
+ css(el, {
+ left: (o.left == 'auto' ? tp.x-ep.x + (target.offsetWidth >> 1) : parseInt(o.left, 10) + mid) + 'px',
+ top: (o.top == 'auto' ? tp.y-ep.y + (target.offsetHeight >> 1) : parseInt(o.top, 10) + mid) + 'px'
+ })
+ }
+
+ el.setAttribute('role', 'progressbar')
+ self.lines(el, self.opts)
+
+ if (!useCssAnimations) {
+ // No CSS animation support, use setTimeout() instead
+ var i = 0
+ , start = (o.lines - 1) * (1 - o.direction) / 2
+ , alpha
+ , fps = o.fps
+ , f = fps/o.speed
+ , ostep = (1-o.opacity) / (f*o.trail / 100)
+ , astep = f/o.lines
+
+ ;(function anim() {
+ i++;
+ for (var j = 0; j < o.lines; j++) {
+ alpha = Math.max(1 - (i + (o.lines - j) * astep) % f * ostep, o.opacity)
+
+ self.opacity(el, j * o.direction + start, alpha, o)
+ }
+ self.timeout = self.el && setTimeout(anim, ~~(1000/fps))
+ })()
+ }
+ return self
+ },
+
+ /**
+ * Stops and removes the Spinner.
+ */
+ stop: function() {
+ var el = this.el
+ if (el) {
+ clearTimeout(this.timeout)
+ if (el.parentNode) el.parentNode.removeChild(el)
+ this.el = undefined
+ }
+ return this
+ },
+
+ /**
+ * Internal method that draws the individual lines. Will be overwritten
+ * in VML fallback mode below.
+ */
+ lines: function(el, o) {
+ var i = 0
+ , start = (o.lines - 1) * (1 - o.direction) / 2
+ , seg
+
+ function fill(color, shadow) {
+ return css(createEl(), {
+ position: 'absolute',
+ width: (o.length+o.width) + 'px',
+ height: o.width + 'px',
+ background: color,
+ boxShadow: shadow,
+ transformOrigin: 'left',
+ transform: 'rotate(' + ~~(360/o.lines*i+o.rotate) + 'deg) translate(' + o.radius+'px' +',0)',
+ borderRadius: (o.corners * o.width>>1) + 'px'
+ })
+ }
+
+ for (; i < o.lines; i++) {
+ seg = css(createEl(), {
+ position: 'absolute',
+ top: 1+~(o.width/2) + 'px',
+ transform: o.hwaccel ? 'translate3d(0,0,0)' : '',
+ opacity: o.opacity,
+ animation: useCssAnimations && addAnimation(o.opacity, o.trail, start + i * o.direction, o.lines) + ' ' + 1/o.speed + 's linear infinite'
+ })
+
+ if (o.shadow) ins(seg, css(fill('#000', '0 0 4px ' + '#000'), {top: 2+'px'}))
+
+ ins(el, ins(seg, fill(o.color, '0 0 1px rgba(0,0,0,.1)')))
+ }
+ return el
+ },
+
+ /**
+ * Internal method that adjusts the opacity of a single line.
+ * Will be overwritten in VML fallback mode below.
+ */
+ opacity: function(el, i, val) {
+ if (i < el.childNodes.length) el.childNodes[i].style.opacity = val
+ }
+
+ })
+
+
+ function initVML() {
+
+ /* Utility function to create a VML tag */
+ function vml(tag, attr) {
+ return createEl('<' + tag + ' xmlns="urn:schemas-microsoft.com:vml" class="spin-vml">', attr)
+ }
+
+ // No CSS transforms but VML support, add a CSS rule for VML elements:
+ sheet.addRule('.spin-vml', 'behavior:url(#default#VML)')
+
+ Spinner.prototype.lines = function(el, o) {
+ var r = o.length+o.width
+ , s = 2*r
+
+ function grp() {
+ return css(
+ vml('group', {
+ coordsize: s + ' ' + s,
+ coordorigin: -r + ' ' + -r
+ }),
+ { width: s, height: s }
+ )
+ }
+
+ var margin = -(o.width+o.length)*2 + 'px'
+ , g = css(grp(), {position: 'absolute', top: margin, left: margin})
+ , i
+
+ function seg(i, dx, filter) {
+ ins(g,
+ ins(css(grp(), {rotation: 360 / o.lines * i + 'deg', left: ~~dx}),
+ ins(css(vml('roundrect', {arcsize: o.corners}), {
+ width: r,
+ height: o.width,
+ left: o.radius,
+ top: -o.width>>1,
+ filter: filter
+ }),
+ vml('fill', {color: o.color, opacity: o.opacity}),
+ vml('stroke', {opacity: 0}) // transparent stroke to fix color bleeding upon opacity change
+ )
+ )
+ )
+ }
+
+ if (o.shadow)
+ for (i = 1; i <= o.lines; i++)
+ seg(i, -2, 'progid:DXImageTransform.Microsoft.Blur(pixelradius=2,makeshadow=1,shadowopacity=.3)')
+
+ for (i = 1; i <= o.lines; i++) seg(i)
+ return ins(el, g)
+ }
+
+ Spinner.prototype.opacity = function(el, i, val, o) {
+ var c = el.firstChild
+ o = o.shadow && o.lines || 0
+ if (c && i+o < c.childNodes.length) {
+ c = c.childNodes[i+o]; c = c && c.firstChild; c = c && c.firstChild
+ if (c) c.opacity = val
+ }
+ }
+ }
+
+ var probe = css(createEl('group'), {behavior: 'url(#default#VML)'})
+
+ if (!vendor(probe, 'transform') && probe.adj) initVML()
+ else useCssAnimations = vendor(probe, 'animation')
+
+ return Spinner
+
+}));
--- /dev/null
+(function(t,e){if(typeof exports=="object")module.exports=e();else if(typeof define=="function"&&define.amd)define(e);else t.Spinner=e()})(this,function(){"use strict";var t=["webkit","Moz","ms","O"],e={},i;function o(t,e){var i=document.createElement(t||"div"),o;for(o in e)i[o]=e[o];return i}function n(t){for(var e=1,i=arguments.length;e<i;e++)t.appendChild(arguments[e]);return t}var r=function(){var t=o("style",{type:"text/css"});n(document.getElementsByTagName("head")[0],t);return t.sheet||t.styleSheet}();function s(t,o,n,s){var a=["opacity",o,~~(t*100),n,s].join("-"),f=.01+n/s*100,l=Math.max(1-(1-t)/o*(100-f),t),d=i.substring(0,i.indexOf("Animation")).toLowerCase(),u=d&&"-"+d+"-"||"";if(!e[a]){r.insertRule("@"+u+"keyframes "+a+"{"+"0%{opacity:"+l+"}"+f+"%{opacity:"+t+"}"+(f+.01)+"%{opacity:1}"+(f+o)%100+"%{opacity:"+t+"}"+"100%{opacity:"+l+"}"+"}",r.cssRules.length);e[a]=1}return a}function a(e,i){var o=e.style,n,r;if(o[i]!==undefined)return i;i=i.charAt(0).toUpperCase()+i.slice(1);for(r=0;r<t.length;r++){n=t[r]+i;if(o[n]!==undefined)return n}}function f(t,e){for(var i in e)t.style[a(t,i)||i]=e[i];return t}function l(t){for(var e=1;e<arguments.length;e++){var i=arguments[e];for(var o in i)if(t[o]===undefined)t[o]=i[o]}return t}function d(t){var e={x:t.offsetLeft,y:t.offsetTop};while(t=t.offsetParent)e.x+=t.offsetLeft,e.y+=t.offsetTop;return e}var u={lines:12,length:7,width:5,radius:10,rotate:0,corners:1,color:"#000",direction:1,speed:1,trail:100,opacity:1/4,fps:20,zIndex:2e9,className:"spinner",top:"auto",left:"auto",position:"relative"};function p(t){if(typeof this=="undefined")return new p(t);this.opts=l(t||{},p.defaults,u)}p.defaults={};l(p.prototype,{spin:function(t){this.stop();var e=this,n=e.opts,r=e.el=f(o(0,{className:n.className}),{position:n.position,width:0,zIndex:n.zIndex}),s=n.radius+n.length+n.width,a,l;if(t){t.insertBefore(r,t.firstChild||null);l=d(t);a=d(r);f(r,{left:(n.left=="auto"?l.x-a.x+(t.offsetWidth>>1):parseInt(n.left,10)+s)+"px",top:(n.top=="auto"?l.y-a.y+(t.offsetHeight>>1):parseInt(n.top,10)+s)+"px"})}r.setAttribute("role","progressbar");e.lines(r,e.opts);if(!i){var u=0,p=(n.lines-1)*(1-n.direction)/2,c,h=n.fps,m=h/n.speed,y=(1-n.opacity)/(m*n.trail/100),g=m/n.lines;(function v(){u++;for(var t=0;t<n.lines;t++){c=Math.max(1-(u+(n.lines-t)*g)%m*y,n.opacity);e.opacity(r,t*n.direction+p,c,n)}e.timeout=e.el&&setTimeout(v,~~(1e3/h))})()}return e},stop:function(){var t=this.el;if(t){clearTimeout(this.timeout);if(t.parentNode)t.parentNode.removeChild(t);this.el=undefined}return this},lines:function(t,e){var r=0,a=(e.lines-1)*(1-e.direction)/2,l;function d(t,i){return f(o(),{position:"absolute",width:e.length+e.width+"px",height:e.width+"px",background:t,boxShadow:i,transformOrigin:"left",transform:"rotate("+~~(360/e.lines*r+e.rotate)+"deg) translate("+e.radius+"px"+",0)",borderRadius:(e.corners*e.width>>1)+"px"})}for(;r<e.lines;r++){l=f(o(),{position:"absolute",top:1+~(e.width/2)+"px",transform:e.hwaccel?"translate3d(0,0,0)":"",opacity:e.opacity,animation:i&&s(e.opacity,e.trail,a+r*e.direction,e.lines)+" "+1/e.speed+"s linear infinite"});if(e.shadow)n(l,f(d("#000","0 0 4px "+"#000"),{top:2+"px"}));n(t,n(l,d(e.color,"0 0 1px rgba(0,0,0,.1)")))}return t},opacity:function(t,e,i){if(e<t.childNodes.length)t.childNodes[e].style.opacity=i}});function c(){function t(t,e){return o("<"+t+' xmlns="urn:schemas-microsoft.com:vml" class="spin-vml">',e)}r.addRule(".spin-vml","behavior:url(#default#VML)");p.prototype.lines=function(e,i){var o=i.length+i.width,r=2*o;function s(){return f(t("group",{coordsize:r+" "+r,coordorigin:-o+" "+-o}),{width:r,height:r})}var a=-(i.width+i.length)*2+"px",l=f(s(),{position:"absolute",top:a,left:a}),d;function u(e,r,a){n(l,n(f(s(),{rotation:360/i.lines*e+"deg",left:~~r}),n(f(t("roundrect",{arcsize:i.corners}),{width:o,height:i.width,left:i.radius,top:-i.width>>1,filter:a}),t("fill",{color:i.color,opacity:i.opacity}),t("stroke",{opacity:0}))))}if(i.shadow)for(d=1;d<=i.lines;d++)u(d,-2,"progid:DXImageTransform.Microsoft.Blur(pixelradius=2,makeshadow=1,shadowopacity=.3)");for(d=1;d<=i.lines;d++)u(d);return n(e,l)};p.prototype.opacity=function(t,e,i,o){var n=t.firstChild;o=o.shadow&&o.lines||0;if(n&&e+o<n.childNodes.length){n=n.childNodes[e+o];n=n&&n.firstChild;n=n&&n.firstChild;if(n)n.opacity=i}}}var h=f(o("group"),{behavior:"url(#default#VML)"});if(!a(h,"transform")&&h.adj)c();else i=a(h,"animation");return p});
\ No newline at end of file