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(function() {
var out$ = typeof exports != 'undefined' && exports || this;
var doctype = '<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">';
function isExternal(url) {
return url && url.lastIndexOf('http',0) == 0 && url.lastIndexOf(window.location.host) == -1;
}
function inlineImages(el, callback) {
var images = el.querySelectorAll('image');
var left = images.length;
if (left == 0) {
callback();
}
for (var i = 0; i < images.length; i++) {
(function(image) {
var href = image.getAttributeNS("http://www.w3.org/1999/xlink", "href");
if (href) {
if (isExternal(href.value)) {
console.warn("Cannot render embedded images linking to external hosts: "+href.value);
return;
}
}
var canvas = document.createElement('canvas');
var ctx = canvas.getContext('2d');
var img = new Image();
href = href || image.getAttribute('href');
img.src = href;
img.onload = function() {
canvas.width = img.width;
canvas.height = img.height;
ctx.drawImage(img, 0, 0);
image.setAttributeNS("http://www.w3.org/1999/xlink", "href", canvas.toDataURL('image/png'));
left--;
if (left == 0) {
callback();
}
}
img.onerror = function() {
console.log("Could not load "+href);
left--;
if (left == 0) {
callback();
}
}
})(images[i]);
}
}
function styles(el, selectorRemap) {
var css = "";
var sheets = document.styleSheets;
for (var i = 0; i < sheets.length; i++) {
if (isExternal(sheets[i].href)) {
console.warn("Cannot include styles from other hosts: "+sheets[i].href);
continue;
}
var rules = sheets[i].cssRules;
if (rules != null) {
for (var j = 0; j < rules.length; j++) {
var rule = rules[j];
if (typeof(rule.style) != "undefined") {
var match = null;
try {
match = el.querySelector(rule.selectorText);
} catch(err) {
console.warn('Invalid CSS selector "' + rule.selectorText + '"', err);
}
if (match) {
var selector = selectorRemap ? selectorRemap(rule.selectorText) : rule.selectorText;
css += selector + " { " + rule.style.cssText + " }\n";
} else if(rule.cssText.match(/^@font-face/)) {
css += rule.cssText + '\n';
}
}
}
}
}
return css;
}
out$.svgAsDataUri = function(el, options, cb) {
options = options || {};
options.scale = options.scale || 1;
var xmlns = "http://www.w3.org/2000/xmlns/";
inlineImages(el, function() {
var outer = document.createElement("div");
var clone = el.cloneNode(true);
var width, height;
if(el.tagName == 'svg') {
var box = el.getBoundingClientRect();
width = parseInt(clone.getAttribute('width') ||
box.width ||
clone.style.width ||
out$.getComputedStyle(el).getPropertyValue('width'));
height = parseInt(clone.getAttribute('height') ||
box.height ||
clone.style.height ||
out$.getComputedStyle(el).getPropertyValue('height'));
if (width === undefined ||
width === null ||
isNaN(parseFloat(width))) {
width = 0;
}
if (height === undefined ||
height === null ||
isNaN(parseFloat(height))) {
height = 0;
}
} else {
var box = el.getBBox();
width = box.x + box.width;
height = box.y + box.height;
clone.setAttribute('transform', clone.getAttribute('transform').replace(/translate\(.*?\)/, ''));
var svg = document.createElementNS('http://www.w3.org/2000/svg','svg')
svg.appendChild(clone)
clone = svg;
}
clone.setAttribute("version", "1.1");
clone.setAttributeNS(xmlns, "xmlns", "http://www.w3.org/2000/svg");
clone.setAttributeNS(xmlns, "xmlns:xlink", "http://www.w3.org/1999/xlink");
clone.setAttribute("width", width * options.scale);
clone.setAttribute("height", height * options.scale);
clone.setAttribute("viewBox", "0 0 " + width + " " + height);
outer.appendChild(clone);
var css = styles(el, options.selectorRemap);
var s = document.createElement('style');
s.setAttribute('type', 'text/css');
s.innerHTML = "<![CDATA[\n" + css + "\n]]>";
var defs = document.createElement('defs');
defs.appendChild(s);
clone.insertBefore(defs, clone.firstChild);
var svg = doctype + outer.innerHTML;
var uri = 'data:image/svg+xml;base64,' + window.btoa(unescape(encodeURIComponent(svg)));
if (cb) {
cb(uri);
}
});
}
out$.saveSvgAsPng = function(el, name, options) {
options = options || {};
out$.svgAsDataUri(el, options, function(uri) {
var image = new Image();
image.onload = function() {
var canvas = document.createElement('canvas');
canvas.width = image.width;
canvas.height = image.height;
var context = canvas.getContext('2d');
context.drawImage(image, 0, 0);
var a = document.createElement('a');
a.download = name;
a.href = canvas.toDataURL('image/png');
document.body.appendChild(a);
a.addEventListener("click", function(e) {
a.parentNode.removeChild(a);
});
a.click();
}
image.src = uri;
});
}
})();
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