121 lines
4.1 KiB
JavaScript
121 lines
4.1 KiB
JavaScript
/**
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* Scour Lite (the JS version)
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*
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* Copyright(c) 2011 Google Inc.
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*/
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importScripts('pdom.js');
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onmessage = function(evt) {
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// Now evt.data contains the text of the SVG file.
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postMessage({
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progress: {loaded: 100, total: 100},
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scouredSvg: scourString(evt.data)
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});
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};
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var NS = {
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'SVG': 'http://www.w3.org/2000/svg',
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'XLINK': 'http://www.w3.org/1999/xlink',
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'SODIPODI': 'http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd',
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'INKSCAPE': 'http://www.inkscape.org/namespaces/inkscape',
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'ADOBE_ILLUSTRATOR': 'http://ns.adobe.com/AdobeIllustrator/10.0/',
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'ADOBE_GRAPHS': 'http://ns.adobe.com/Graphs/1.0/',
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'ADOBE_SVG_VIEWER': 'http://ns.adobe.com/AdobeSVGViewerExtensions/3.0/',
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'ADOBE_VARIABLES': 'http://ns.adobe.com/Variables/1.0/',
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'ADOBE_SFW': 'http://ns.adobe.com/SaveForWeb/1.0/',
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'ADOBE_EXTENSIBILITY': 'http://ns.adobe.com/Extensibility/1.0/',
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'ADOBE_FLOWS': 'http://ns.adobe.com/Flows/1.0/',
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'ADOBE_IMAGE_REPLACEMENT': 'http://ns.adobe.com/ImageReplacement/1.0/',
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'ADOBE_CUSTOM': 'http://ns.adobe.com/GenericCustomNamespace/1.0/',
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'ADOBE_XPATH': 'http://ns.adobe.com/XPath/1.0/'
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};
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var unwanted_ns = [ NS['SODIPODI'], NS['INKSCAPE'], NS['ADOBE_ILLUSTRATOR'],
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NS['ADOBE_GRAPHS'], NS['ADOBE_SVG_VIEWER'], NS['ADOBE_VARIABLES'],
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NS['ADOBE_SFW'], NS['ADOBE_EXTENSIBILITY'], NS['ADOBE_FLOWS'],
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NS['ADOBE_IMAGE_REPLACEMENT'], NS['ADOBE_CUSTOM'], NS['ADOBE_XPATH'] ];
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/**
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* @param {pdom.Node|Node} node The parent node.
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* @param {Array.<string>} namespaces An array of namespace URIs.
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*/
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var removeNamespacedElements = function(node, namespaces) {
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if (node.nodeType == 1) {
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// Remove all namespace'd child nodes from this element.
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var childrenToRemove = [];
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for (var i = 0; i < node.childNodes.length; ++i) {
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var child = node.childNodes.item(i);
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if (namespaces.indexOf(child.namespaceURI) != -1) {
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childrenToRemove.push(child);
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postMessage({update: '.'});
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}
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}
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for (var i = 0; i < childrenToRemove.length; ++i) {
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node.removeChild(childrenToRemove[i]);
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}
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// Now recurse for children.
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for (var i = 0; i < node.childNodes.length; ++i) {
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removeNamespacedElements(node.childNodes.item(i), namespaces);
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}
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}
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};
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/**
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* @param {pdom.Node|Node} node The parent node.
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* @param {Array.<string>} namespaces An array of namespace URIs.
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*/
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var removeNamespacedAttributes = function(node, namespaces) {
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if (node.nodeType == 1) {
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// Remove all namespace'd attributes from this element.
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var attrsToRemove = [];
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for (var i = 0; i < node.attributes.length; ++i) {
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var attr = node.attributes.item(i);
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if (namespaces.indexOf(attr.namespaceURI) != -1 ||
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(namespaces.indexOf(attr.value) != -1 && attr.name.indexOf('xmlns:') == 0)) {
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attrsToRemove.push(attr);
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postMessage({update: '.'});
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}
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}
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for (var i = 0; i < attrsToRemove.length; ++i) {
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node.removeAttribute(attrsToRemove[i].name);
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}
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// Now recurse for children.
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for (var i = 0; i < node.childNodes.length; ++i) {
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removeNamespacedAttributes(node.childNodes.item(i), namespaces);
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}
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}
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};
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/**
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* @param {string} in_string The SVG document as a string.
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* @param {object} opt_options An optional set of options.
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*/
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var scourString = function(in_string, opt_options) {
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postMessage({progress: {loaded: 0, total: 100}});
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var parser = new pdom.DOMParser();
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var options = opt_options || {};
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var doc = parser.parseFromString(in_string, 'text/xml');
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// Remove editor stuff.
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if (!options.keep_editor_data) {
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postMessage({message: 'Removing namespaced elements '});
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removeNamespacedElements(doc.documentElement, unwanted_ns);
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postMessage({update: ' done!'});
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postMessage({progress: {loaded: 45, total: 100}});
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postMessage({message: 'Removing namespaced attributes '});
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removeNamespacedAttributes(doc.documentElement, unwanted_ns);
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postMessage({update: ' done!'});
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postMessage({progress: {loaded: 90, total: 100}});
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}
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return new pdom.XMLSerializer().serializeToString(doc);
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};
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