aboutsummaryrefslogtreecommitdiffstats
path: root/view/js/spin.js
diff options
context:
space:
mode:
authorMario Vavti <mario@mariovavti.com>2015-06-15 21:47:29 +0200
committerMario Vavti <mario@mariovavti.com>2015-06-15 21:47:29 +0200
commit7e3aac6d18f2140605ef14c7ff4675656b525157 (patch)
tree01660cc1b9ef8398da9b7b64577f365f58e0bb5a /view/js/spin.js
parent905cd1da5bd8c794e7f62217a1e4ab2b0e3a2123 (diff)
downloadvolse-hubzilla-7e3aac6d18f2140605ef14c7ff4675656b525157.tar.gz
volse-hubzilla-7e3aac6d18f2140605ef14c7ff4675656b525157.tar.bz2
volse-hubzilla-7e3aac6d18f2140605ef14c7ff4675656b525157.zip
update spin.js
Diffstat (limited to 'view/js/spin.js')
-rw-r--r--view/js/spin.js290
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