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mtime;�Fl+��1SI" length;�FiX"I" digest;�F"%3190d01f1f7efe79d3175d793e300a5fI" source;�FI"X"/*!
* NETEYE Activity Indicator jQuery Plugin
*
* Copyright (c) 2010 NETEYE GmbH
* Licensed under the MIT license
*
* Author: Felix Gnass [fgnass at neteye dot de]
* Version: 1.0.0
*/
/**
* Plugin that renders a customisable activity indicator (spinner) using SVG or VML.
*/
(function($) {
$.fn.activity = function(opts) {
this.each(function() {
var $this = $(this);
var el = $this.data('activity');
if (el) {
clearInterval(el.data('interval'));
el.remove();
$this.removeData('activity');
}
if (opts !== false) {
opts = $.extend({color: $this.css('color')}, $.fn.activity.defaults, opts);
el = render($this, opts).css('position', 'absolute').prependTo(opts.outside ? 'body' : $this);
var h = $this.outerHeight() - el.height();
var w = $this.outerWidth() - el.width();
var margin = {
top: opts.valign == 'top' ? opts.padding : opts.valign == 'bottom' ? h - opts.padding : Math.floor(h / 2),
left: opts.align == 'left' ? opts.padding : opts.align == 'right' ? w - opts.padding : Math.floor(w / 2)
};
var offset = $this.offset();
if (opts.outside) {
el.css({top: offset.top + 'px', left: offset.left + 'px'});
}
else {
margin.top -= el.offset().top - offset.top;
margin.left -= el.offset().left - offset.left;
}
el.css({marginTop: margin.top + 'px', marginLeft: margin.left + 'px'});
animate(el, opts.segments, Math.round(10 / opts.speed) / 10);
$this.data('activity', el);
}
});
return this;
};
$.fn.activity.defaults = {
segments: 12,
space: 3,
length: 7,
width: 4,
speed: 1.2,
align: 'center',
valign: 'center',
padding: 4,
zIndex: 1000
};
$.fn.activity.getOpacity = function(opts, i) {
var steps = opts.steps || opts.segments-1;
var end = opts.opacity !== undefined ? opts.opacity : 1/steps;
return 1 - Math.min(i, steps) * (1 - end) / steps;
};
/**
* Default rendering strategy. If neither SVG nor VML is available, a div with class-name 'busy'
* is inserted, that can be styled with CSS to display an animated gif as fallback.
*/
var render = function() {
return $('<div>').addClass('busy');
};
/**
* The default animation strategy does nothing as we expect an animated gif as fallback.
*/
var animate = function() {
};
/**
* Utility function to create elements in the SVG namespace.
*/
function svg(tag, attr) {
var el = document.createElementNS("http://www.w3.org/2000/svg", tag || 'svg');
if (attr) {
$.each(attr, function(k, v) {
el.setAttributeNS(null, k, v);
});
}
return $(el);
}
if (document.createElementNS && document.createElementNS( "http://www.w3.org/2000/svg", "svg").createSVGRect) {
// =======================================================================================
// SVG Rendering
// =======================================================================================
/**
* Rendering strategy that creates a SVG tree.
*/
render = function(target, d) {
var innerRadius = d.width*2 + d.space;
var r = (innerRadius + d.length + Math.ceil(d.width / 2) + 1);
var el = svg().width(r*2).height(r*2);
var g = svg('g', {
'stroke-width': d.width,
'stroke-linecap': 'round',
stroke: d.color
}).appendTo(svg('g', {transform: 'translate('+ r +','+ r +')'}).appendTo(el));
for (var i = 0; i < d.segments; i++) {
g.append(svg('line', {
x1: 0,
y1: innerRadius,
x2: 0,
y2: innerRadius + d.length,
transform: 'rotate(' + (360 / d.segments * i) + ', 0, 0)',
opacity: $.fn.activity.getOpacity(d, i)
}));
}
return $('<div>').append(el).width(2*r).height(2*r);
};
// Check if Webkit CSS animations are available, as they work much better on the iPad
// than setTimeout() based animations.
if (document.createElement('div').style.WebkitAnimationName !== undefined) {
var animations = {};
/**
* Animation strategy that uses dynamically created CSS animation rules.
*/
animate = function(el, steps, duration) {
if (!animations[steps]) {
var name = 'spin' + steps;
var rule = '@-webkit-keyframes '+ name +' {';
for (var i=0; i < steps; i++) {
var p1 = Math.round(100000 / steps * i) / 1000;
var p2 = Math.round(100000 / steps * (i+1) - 1) / 1000;
var value = '% { -webkit-transform:rotate(' + Math.round(360 / steps * i) + 'deg); }\n';
rule += p1 + value + p2 + value;
}
rule += '100% { -webkit-transform:rotate(100deg); }\n}';
document.styleSheets[0].insertRule(rule);
animations[steps] = name;
}
el.css('-webkit-animation', animations[steps] + ' ' + duration +'s linear infinite');
};
}
else {
/**
* Animation strategy that transforms a SVG element using setInterval().
*/
animate = function(el, steps, duration) {
var rotation = 0;
var g = el.find('g g').get(0);
el.data('interval', setInterval(function() {
g.setAttributeNS(null, 'transform', 'rotate(' + (++rotation % steps * (360 / steps)) + ')');
}, duration * 1000 / steps));
};
}
}
else {
// =======================================================================================
// VML Rendering
// =======================================================================================
var s = $('<shape>').css('behavior', 'url(#default#VML)').appendTo('body');
if (s.get(0).adj) {
// VML support detected. Insert CSS rules for group, shape and stroke.
var sheet = document.createStyleSheet();
$.each(['group', 'shape', 'stroke'], function() {
sheet.addRule(this, "behavior:url(#default#VML);");
});
/**
* Rendering strategy that creates a VML tree.
*/
render = function(target, d) {
var innerRadius = d.width*2 + d.space;
var r = (innerRadius + d.length + Math.ceil(d.width / 2) + 1);
var s = r*2;
var o = -Math.ceil(s/2);
var el = $('<group>', {coordsize: s + ' ' + s, coordorigin: o + ' ' + o}).css({top: o, left: o, width: s, height: s});
for (var i = 0; i < d.segments; i++) {
el.append($('<shape>', {path: 'm ' + innerRadius + ',0 l ' + (innerRadius + d.length) + ',0'}).css({
width: s,
height: s,
rotation: (360 / d.segments * i) + 'deg'
}).append($('<stroke>', {color: d.color, weight: d.width + 'px', endcap: 'round', opacity: $.fn.activity.getOpacity(d, i)})));
}
return $('<group>', {coordsize: s + ' ' + s}).css({width: s, height: s, overflow: 'hidden'}).append(el);
};
/**
* Animation strategy that modifies the VML rotation property using setInterval().
*/
animate = function(el, steps, duration) {
var rotation = 0;
var g = el.get(0);
el.data('interval', setInterval(function() {
g.style.rotation = ++rotation % steps * (360 / steps);
}, duration * 1000 / steps));
};
}
$(s).remove();
}
})(jQuery);
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