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Diffstat (limited to 'view/js/spin.js')
| -rw-r--r-- | view/js/spin.js | 377 |
1 files changed, 0 insertions, 377 deletions
diff --git a/view/js/spin.js b/view/js/spin.js deleted file mode 100644 index 145ce1baf..000000000 --- a/view/js/spin.js +++ /dev/null @@ -1,377 +0,0 @@ -/** - * 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) { - - /* 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 */ - , 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) { - 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 - } - - /** - * 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 - - prop = prop.charAt(0).toUpperCase() + prop.slice(1) - if (s[prop] !== undefined) return prop - 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 line color from the given string or array. - */ - 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 - , 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) { - 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 = 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) - } - - 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.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.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: '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) { - 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.scale * (o.length + o.width) - , s = o.scale * 2 * r - - function grp () { - return css( - vml('group', { - coordsize: s + ' ' + s - , coordorigin: -r + ' ' + -r - }) - , { width: s, height: s } - ) - } - - 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.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++) { - 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 - } - } - } - - if (typeof document !== 'undefined') { - sheet = (function () { - var el = createEl('style', {type : 'text/css'}) - ins(document.getElementsByTagName('head')[0], el) - return el.sheet || el.styleSheet - }()) - - var probe = css(createEl('group'), {behavior: 'url(#default#VML)'}) - - if (!vendor(probe, 'transform') && probe.adj) initVML() - else useCssAnimations = vendor(probe, 'animation') - } - - return Spinner - -})); |