src/Ayaline/Bundle/ComposerBundle/Resources/public/js/spin.js
(function(root, factory) {
if (typeof exports == "object") module.exports = factory(); else if (typeof define == "function" && define.amd) define(factory); else root.Spinner = factory();
})(this, function() {
"use strict";
var prefixes = [ "webkit", "Moz", "ms", "O" ], animations = {}, useCssAnimations;
function createEl(tag, prop) {
var el = document.createElement(tag || "div"), n;
for (n in prop) el[n] = prop[n];
return el;
}
function ins(parent) {
for (var i = 1, n = arguments.length; i < n; i++) parent.appendChild(arguments[i]);
return parent;
}
var sheet = function() {
var el = createEl("style", {
type: "text/css"
});
ins(document.getElementsByTagName("head")[0], el);
return el.sheet || el.styleSheet;
}();
function addAnimation(alpha, trail, i, lines) {
var name = [ "opacity", trail, ~~(alpha * 100), i, lines ].join("-"), start = .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 + .01) + "%{opacity:1}" + (start + trail) % 100 + "%{opacity:" + alpha + "}" + "100%{opacity:" + z + "}" + "}", sheet.cssRules.length);
animations[name] = 1;
}
return name;
}
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;
}
}
function css(el, prop) {
for (var n in prop) el.style[vendor(el, n) || n] = prop[n];
return el;
}
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;
}
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;
}
var defaults = {
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 Spinner(o) {
if (typeof this == "undefined") return new Spinner(o);
this.opts = merge(o || {}, Spinner.defaults, defaults);
}
Spinner.defaults = {};
merge(Spinner.prototype, {
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, tp;
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) {
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, ~~(1e3 / fps));
})();
}
return self;
},
stop: function() {
var el = this.el;
if (el) {
clearTimeout(this.timeout);
if (el.parentNode) el.parentNode.removeChild(el);
this.el = undefined;
}
return this;
},
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;
},
opacity: function(el, i, val) {
if (i < el.childNodes.length) el.childNodes[i].style.opacity = val;
}
});
function initVML() {
function vml(tag, attr) {
return createEl("<" + tag + ' xmlns="urn:schemas-microsoft.com:vml" class="spin-vml">', attr);
}
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
}))));
}
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;
});