EVOLUTION-NINJA

Edit File: holder.js

/*!

Holder - 2.3.2 - client side image placeholders
(c) 2012-2014 Ivan Malopinsky / http://imsky.co

Provided under the MIT License.
Commercial use requires attribution.

*/
var Holder = Holder || {};
(function (app, win) {
var system_config = {
	use_svg: false,
	use_canvas: false,
	use_fallback: false
};
var instance_config = {};
var preempted = false;
canvas = document.createElement('canvas');
var dpr = 1, bsr = 1;
var resizable_images = [];

if (!canvas.getContext) {
	system_config.use_fallback = true;
} else {
	if (canvas.toDataURL("image/png")
		.indexOf("data:image/png") < 0) {
		//Android doesn't support data URI
		system_config.use_fallback = true;
	} else {
		var ctx = canvas.getContext("2d");
	}
}

if(!!document.createElementNS && !!document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGRect){
	system_config.use_svg = true;
	system_config.use_canvas = false;
}

if(!system_config.use_fallback){
    dpr = window.devicePixelRatio || 1,
    bsr = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1;
}

var ratio = dpr / bsr;

function text_size(width, height, template) {
	height = parseInt(height, 10);
	width = parseInt(width, 10);
	var bigSide = Math.max(height, width)
	var smallSide = Math.min(height, width)
	var scale = 1 / 12;
	var newHeight = Math.min(smallSide * 0.75, 0.75 * bigSide * scale);
	return {
		height: Math.round(Math.max(template.size, newHeight))
	}
}

var svg_el = (function(){
	//Prevent IE <9 from initializing SVG renderer
	if(!window.XMLSerializer) return;
	var serializer = new XMLSerializer();
	var svg_ns = "http://www.w3.org/2000/svg"
	var svg = document.createElementNS(svg_ns, "svg");
	//IE throws an exception if this is set and Chrome requires it to be set
	if(svg.webkitMatchesSelector){
		svg.setAttribute("xmlns", "http://www.w3.org/2000/svg")
	}
	var bg_el = document.createElementNS(svg_ns, "rect")
	var text_el = document.createElementNS(svg_ns, "text")
	var textnode_el = document.createTextNode(null)
	text_el.setAttribute("text-anchor", "middle")
	text_el.appendChild(textnode_el)
	svg.appendChild(bg_el)
	svg.appendChild(text_el)

return function(props){
		svg.setAttribute("width",props.width);
		svg.setAttribute("height", props.height);
		bg_el.setAttribute("width", props.width);
		bg_el.setAttribute("height", props.height);
		bg_el.setAttribute("fill", props.template.background);
		text_el.setAttribute("x", props.width/2)
		text_el.setAttribute("y", props.height/2)
		textnode_el.nodeValue=props.text
		text_el.setAttribute("style", css_properties({
		"fill": props.template.foreground,
		"font-weight": "bold",
		"font-size": props.text_height+"px",
		"font-family":props.font,
		"dominant-baseline":"central"
		}))
		return serializer.serializeToString(svg)
	}
})()

function css_properties(props){
	var ret = [];
	for(p in props){
		if(props.hasOwnProperty(p)){
			ret.push(p+":"+props[p])
		}
	}
	return ret.join(";")
}

function draw_canvas(args) {
	var ctx = args.ctx,
		dimensions = args.dimensions,
		template = args.template,
		ratio = args.ratio,
		holder = args.holder,
		literal = holder.textmode == "literal",
		exact = holder.textmode == "exact";

function draw_svg(args){
	var dimensions = args.dimensions,
		template = args.template,
		holder = args.holder,
		literal = holder.textmode == "literal",
		exact = holder.textmode == "exact";

function draw(args) {
	if(instance_config.use_canvas && !instance_config.use_svg){
		return draw_canvas(args);
	}
	else{
		return draw_svg(args);
	}
}

function dimension_check(el, callback) {
	var dimensions = {
		height: el.clientHeight,
		width: el.clientWidth
	};
	if (!dimensions.height && !dimensions.width) {
		el.setAttribute("data-holder-invisible", true)
		callback.call(this, el)
	}
	else{
		el.removeAttribute("data-holder-invisible")
		return dimensions;
	}
}

for (var flag in app.flags) {
	if (!app.flags.hasOwnProperty(flag)) continue;
	app.flags[flag].match = function (val) {
		return val.match(this.regex)
	}
}

app.invisible_error_fn = function(fn){
	return function(el){
		if(el.hasAttribute("data-holder-invisible")){
			throw new Error("Holder: invisible placeholder")
		}
	}
}

app.add_theme = function (name, theme) {
	name != null && theme != null && (settings.themes[name] = theme);
	return app;
};

app.add_image = function (src, el) {
	var node = selector(el);
	if (node.length) {
		for (var i = 0, l = node.length; i < l; i++) {
			var img = document.createElement("img")
			img.setAttribute("data-src", src);
			node[i].appendChild(img);
		}
	}
	return app;
};

app.run = function (o) {

instance_config = extend({}, system_config)
	preempted = true;

var options = extend(settings, o),
		images = [],
		imageNodes = [],
		bgnodes = [];

if(options.use_canvas != null && options.use_canvas){
		instance_config.use_canvas = true;
		instance_config.use_svg = false;
	}
			
	if (typeof (options.images) == "string") {
		imageNodes = selector(options.images);
	} else if (window.NodeList && options.images instanceof window.NodeList) {
		imageNodes = options.images;
	} else if (window.Node && options.images instanceof window.Node) {
		imageNodes = [options.images];
	} else if(window.HTMLCollection && options.images instanceof window.HTMLCollection){
		imageNodes = options.images
	}

if (typeof (options.bgnodes) == "string") {
		bgnodes = selector(options.bgnodes);
	} else if (window.NodeList && options.elements instanceof window.NodeList) {
		bgnodes = options.bgnodes;
	} else if (window.Node && options.bgnodes instanceof window.Node) {
		bgnodes = [options.bgnodes];
	}
	for (i = 0, l = imageNodes.length; i < l; i++) images.push(imageNodes[i]);
	
	var holdercss = document.getElementById("holderjs-style");
	if (!holdercss) {
		holdercss = document.createElement("style");
		holdercss.setAttribute("id", "holderjs-style");
		holdercss.type = "text/css";
		document.getElementsByTagName("head")[0].appendChild(holdercss);
	}
	
	if (!options.nocss) {
		if (holdercss.styleSheet) {
			holdercss.styleSheet.cssText += options.stylesheet;
		} else {
			if(options.stylesheet.length){
				holdercss.appendChild(document.createTextNode(options.stylesheet));
			}
		}
	}
	
	var cssregex = new RegExp(options.domain + "\/(.*?)\"?\\)");
	for (var l = bgnodes.length, i = 0; i < l; i++) {
		var src = window.getComputedStyle(bgnodes[i], null)
			.getPropertyValue("background-image");
		var flags = src.match(cssregex);
		var bgsrc = bgnodes[i].getAttribute("data-background-src");
		if (flags) {
			var holder = parse_flags(flags[1].split("/"), options);
			if (holder) {
				render("background", bgnodes[i], holder, src);
			}
		} else if (bgsrc != null) {
			var holder = parse_flags(bgsrc.substr(bgsrc.lastIndexOf(options.domain) + options.domain.length + 1)
				.split("/"), options);
			if (holder) {
				render("background", bgnodes[i], holder, src);
			}
		}
	}
	for (l = images.length, i = 0; i < l; i++) {
		var attr_data_src, attr_src;
		attr_src = attr_data_src = src = null;
		try {
			attr_src = images[i].getAttribute("src");
			attr_datasrc = images[i].getAttribute("data-src");
		} catch (e) {}
		if (attr_datasrc == null && !! attr_src && attr_src.indexOf(options.domain) >= 0) {
			src = attr_src;
		} else if ( !! attr_datasrc && attr_datasrc.indexOf(options.domain) >= 0) {
			src = attr_datasrc;
		}
		if (src) {
			var holder = parse_flags(src.substr(src.lastIndexOf(options.domain) + options.domain.length + 1).split("/"), options);
			if (holder) {
				if (holder.fluid) {
					render("fluid", images[i], holder, src)
				} else {
					render("image", images[i], holder, src);
				}
			}
		}
	}
	return app;
};

contentLoaded(win, function () {
	if (window.addEventListener) {
		window.addEventListener("resize", resizable_update, false);
		window.addEventListener("orientationchange", resizable_update, false);
	} else {
		window.attachEvent("onresize", resizable_update)
	}
	preempted || app.run({});

if (typeof window.Turbolinks === "object") {
		document.addEventListener("page:change", function() { app.run({}) })
	}
});
if (typeof define === "function" && define.amd) {
	define([], function () {
		return app;
	});
}

//github.com/davidchambers/Base64.js
(function(){function t(t){this.message=t}var e="undefined"!=typeof exports?exports:this,r="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";t.prototype=Error(),t.prototype.name="InvalidCharacterError",e.btoa||(e.btoa=function(e){for(var o,n,a=0,i=r,c="";e.charAt(0|a)||(i="=",a%1);c+=i.charAt(63&o>>8-8*(a%1))){if(n=e.charCodeAt(a+=.75),n>255)throw new t("'btoa' failed");o=o<<8|n}return c}),e.atob||(e.atob=function(e){if(e=e.replace(/=+$/,""),1==e.length%4)throw new t("'atob' failed");for(var o,n,a=0,i=0,c="";n=e.charAt(i++);~n&&(o=a%4?64*o+n:n,a++%4)?c+=String.fromCharCode(255&o>>(6&-2*a)):0)n=r.indexOf(n);return c})})();

//getElementsByClassName polyfill
document.getElementsByClassName||(document.getElementsByClassName=function(e){var t=document,n,r,i,s=[];if(t.querySelectorAll)return t.querySelectorAll("."+e);if(t.evaluate){r=".//*[contains(concat(' ', @class, ' '), ' "+e+" ')]",n=t.evaluate(r,t,null,0,null);while(i=n.iterateNext())s.push(i)}else{n=t.getElementsByTagName("*"),r=new RegExp("(^|\\s)"+e+"(\\s|$)");for(i=0;i<n.length;i++)r.test(n[i].className)&&s.push(n[i])}return s})

//getComputedStyle polyfill
window.getComputedStyle||(window.getComputedStyle=function(e){return this.el=e,this.getPropertyValue=function(t){var n=/(\-([a-z]){1})/g;return t=="float"&&(t="styleFloat"),n.test(t)&&(t=t.replace(n,function(){return arguments[2].toUpperCase()})),e.currentStyle[t]?e.currentStyle[t]:null},this})

//http://javascript.nwbox.com/ContentLoaded by Diego Perini with modifications
function contentLoaded(n,t){var l="complete",s="readystatechange",u=!1,h=u,c=!0,i=n.document,a=i.documentElement,e=i.addEventListener?"addEventListener":"attachEvent",v=i.addEventListener?"removeEventListener":"detachEvent",f=i.addEventListener?"":"on",r=function(e){(e.type!=s||i.readyState==l)&&((e.type=="load"?n:i)[v](f+e.type,r,u),!h&&(h=!0)&&t.call(n,null))},o=function(){try{a.doScroll("left")}catch(n){setTimeout(o,50);return}r("poll")};if(i.readyState==l)t.call(n,"lazy");else{if(i.createEventObject&&a.doScroll){try{c=!n.frameElement}catch(y){}c&&o()}i[e](f+"DOMContentLoaded",r,u),i[e](f+s,r,u),n[e](f+"load",r,u)}}

//https://gist.github.com/991057 by Jed Schmidt with modifications
function selector(a,b){var a=a.match(/^(\W)?(.*)/),b=b||document,c=b["getElement"+(a[1]?"#"==a[1]?"ById":"sByClassName":"sByTagName")],d=c.call(b,a[2]),e=[];return null!==d&&(e=d.length||0===d.length?d:[d]),e}

//shallow object property extend
function extend(a,b){
	var c={};
	for(var i in a){
		if(a.hasOwnProperty(i)){
			c[i]=a[i];
		}
	}
	for(var i in b){
		if(b.hasOwnProperty(i)){
			c[i]=b[i];
		}
	}
	return c
}

//hasOwnProperty polyfill
if (!Object.prototype.hasOwnProperty)
    /*jshint -W001, -W103 */
    Object.prototype.hasOwnProperty = function(prop) {
		var proto = this.__proto__ || this.constructor.prototype;
		return (prop in this) && (!(prop in proto) || proto[prop] !== this[prop]);
	}
    /*jshint +W001, +W103 */

})(Holder, window);