update spin.js

1 files changed, 159 insertions, 131 deletions

diff --git a/view/js/spin.js b/view/js/spin.js
index c66c607a7..145ce1baf 100644
--- a/view/js/spin.js
+++ b/view/js/spin.js
@@ -1,65 +1,82 @@
-//fgnass.github.com/spin.js#v1.3
-
 /**
- * Copyright (c) 2011-2013 Felix Gnass
+ * Copyright (c) 2011-2014 Felix Gnass
  * Licensed under the MIT license
+ * http://spin.js.org/
+ *
+ * Example:
+    var opts = {
+      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
+    , scale: 1.0            // Scales overall size of the spinner
+    , corners: 1            // Roundness (0..1)
+    , color: '#000'         // #rgb or #rrggbb
+    , opacity: 1/4          // Opacity of the lines
+    , rotate: 0             // Rotation offset
+    , direction: 1          // 1: clockwise, -1: counterclockwise
+    , speed: 1              // Rounds per second
+    , trail: 100            // Afterglow percentage
+    , 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: '50%'            // center vertically
+    , left: '50%'           // center horizontally
+    , shadow: false         // Whether to render a shadow
+    , hwaccel: false        // Whether to use hardware acceleration (might be buggy)
+    , position: 'absolute'  // Element positioning
+    }
+    var target = document.getElementById('foo')
+    var spinner = new Spinner(opts).spin(target)
  */
-(function(root, factory) {
+;(function (root, factory) {
 
   /* CommonJS */
-  if (typeof exports == 'object')  module.exports = factory()
+  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";
+}(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 */
+    , sheet /* A stylesheet to hold the @keyframe or VML rules. */
 
   /**
    * Utility function to create elements. If no tag name is given,
    * a DIV is created. Optionally properties can be passed.
    */
-  function createEl(tag, prop) {
+  function createEl (tag, prop) {
     var el = document.createElement(tag || 'div')
       , n
 
-    for(n in prop) el[n] = prop[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++)
+  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('-')
+  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()
@@ -84,25 +101,26 @@
   /**
    * Tries various vendor prefixes and returns the first supported property.
    */
-  function vendor(el, prop) {
+  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++) {
+    if (s[prop] !== undefined) return prop
+    for (i = 0; i < prefixes.length; i++) {
       pp = prefixes[i]+prop
-      if(s[pp] !== undefined) return pp
+      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]
+  function css (el, prop) {
+    for (var n in prop) {
+      el.style[vendor(el, n) || n] = prop[n]
+    }
 
     return el
   }
@@ -110,51 +128,50 @@
   /**
    * Fills in default values.
    */
-  function merge(obj) {
-    for (var i=1; i < arguments.length; i++) {
+  function merge (obj) {
+    for (var i = 1; i < arguments.length; i++) {
       var def = arguments[i]
-      for (var n in def)
+      for (var n in def) {
         if (obj[n] === undefined) obj[n] = def[n]
+      }
     }
     return obj
   }
 
   /**
-   * Returns the absolute page-offset of the given element.
+   * Returns the line color from the given string or array.
    */
-  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
+  function getColor (color, idx) {
+    return typeof color == 'string' ? color : color[idx % color.length]
   }
 
   // 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
+    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
+  , scale: 1.0            // Scales overall size of the spinner
+  , corners: 1            // Roundness (0..1)
+  , color: '#000'         // #rgb or #rrggbb
+  , opacity: 1/4          // Opacity of the lines
+  , rotate: 0             // Rotation offset
+  , direction: 1          // 1: clockwise, -1: counterclockwise
+  , speed: 1              // Rounds per second
+  , trail: 100            // Afterglow percentage
+  , 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: '50%'            // center vertically
+  , left: '50%'           // center horizontally
+  , shadow: false         // Whether to render a shadow
+  , hwaccel: false        // Whether to use hardware acceleration (might be buggy)
+  , position: 'absolute'  // Element positioning
   }
 
   /** The constructor */
-  function Spinner(o) {
-    if (typeof this == 'undefined') return new Spinner(o)
+  function Spinner (o) {
     this.opts = merge(o || {}, Spinner.defaults, defaults)
   }
 
@@ -162,30 +179,28 @@
   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) {
+    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
+        , el = self.el = createEl(null, {className: o.className})
+
+      css(el, {
+        position: o.position
+      , width: 0
+      , zIndex: o.zIndex
+      , left: o.left
+      , top: o.top
+      })
 
       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'
-        })
+        target.insertBefore(el, target.firstChild || null)
       }
 
       el.setAttribute('role', 'progressbar')
@@ -197,27 +212,27 @@
           , 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
+          , f = fps / o.speed
+          , ostep = (1 - o.opacity) / (f * o.trail / 100)
+          , astep = f / o.lines
 
-        ;(function anim() {
-          i++;
+        ;(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))
+          self.timeout = self.el && setTimeout(anim, ~~(1000 / fps))
         })()
       }
       return self
-    },
+    }
 
     /**
      * Stops and removes the Spinner.
      */
-    stop: function() {
+  , stop: function () {
       var el = this.el
       if (el) {
         clearTimeout(this.timeout)
@@ -225,124 +240,137 @@
         this.el = undefined
       }
       return this
-    },
+    }
 
     /**
      * Internal method that draws the individual lines. Will be overwritten
      * in VML fallback mode below.
      */
-    lines: function(el, o) {
+  , lines: function (el, o) {
       var i = 0
         , start = (o.lines - 1) * (1 - o.direction) / 2
         , seg
 
-      function fill(color, shadow) {
+      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'
+          position: 'absolute'
+        , width: o.scale * (o.length + o.width) + 'px'
+        , height: o.scale * o.width + 'px'
+        , background: color
+        , boxShadow: shadow
+        , transformOrigin: 'left'
+        , transform: 'rotate(' + ~~(360/o.lines*i + o.rotate) + 'deg) translate(' + o.scale*o.radius + 'px' + ',0)'
+        , borderRadius: (o.corners * o.scale * 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'
+          position: 'absolute'
+        , top: 1 + ~(o.scale * 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)')))
+        if (o.shadow) ins(seg, css(fill('#000', '0 0 4px #000'), {top: '2px'}))
+        ins(el, ins(seg, fill(getColor(o.color, i), '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) {
+  , opacity: function (el, i, val) {
       if (i < el.childNodes.length) el.childNodes[i].style.opacity = val
     }
 
   })
 
 
-  function initVML() {
+  function initVML () {
 
     /* Utility function to create a VML tag */
-    function vml(tag, attr) {
+    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
+    Spinner.prototype.lines = function (el, o) {
+      var r = o.scale * (o.length + o.width)
+        , s = o.scale * 2 * r
 
-      function grp() {
+      function grp () {
         return css(
           vml('group', {
-            coordsize: s + ' ' + s,
-            coordorigin: -r + ' ' + -r
-          }),
-          { width: s, height: s }
+            coordsize: s + ' ' + s
+          , coordorigin: -r + ' ' + -r
+          })
+        , { width: s, height: s }
         )
       }
 
-      var margin = -(o.width+o.length)*2 + 'px'
+      var margin = -(o.width + o.length) * o.scale * 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
+      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.scale * o.width
+                , left: o.scale * o.radius
+                , top: -o.scale * o.width >> 1
+                , filter: filter
+                }
+              )
+            , vml('fill', {color: getColor(o.color, i), 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++)
+        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) {
+    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 && 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 (typeof document !== 'undefined') {
+    sheet = (function () {
+      var el = createEl('style', {type : 'text/css'})
+      ins(document.getElementsByTagName('head')[0], el)
+      return el.sheet || el.styleSheet
+    }())
 
-  if (!vendor(probe, 'transform') && probe.adj) initVML()
-  else useCssAnimations = vendor(probe, 'animation')
+    var probe = css(createEl('group'), {behavior: 'url(#default#VML)'})
+
+    if (!vendor(probe, 'transform') && probe.adj) initVML()
+    else useCssAnimations = vendor(probe, 'animation')
+  }
 
   return Spinner