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Add a starter JavaScript version of Scour

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This commit is contained in:
Jeff Schiller 2011-12-29 16:11:55 -08:00
parent 60b48353b3
commit fbcbedef37
6 changed files with 1568 additions and 0 deletions
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lite/scour.js Normal file
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/**
* Scour Lite (the JS version)
*
* Copyright(c) 2011 Google Inc.
*/
importScripts('pdom.js');
onmessage = function(evt) {
// Now evt.data contains the text of the SVG file.
postMessage({
progress: {loaded: 100, total: 100},
scouredSvg: scourString(evt.data)
});
};
var NS = {
'SVG': 'http://www.w3.org/2000/svg',
'XLINK': 'http://www.w3.org/1999/xlink',
'SODIPODI': 'http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd',
'INKSCAPE': 'http://www.inkscape.org/namespaces/inkscape',
'ADOBE_ILLUSTRATOR': 'http://ns.adobe.com/AdobeIllustrator/10.0/',
'ADOBE_GRAPHS': 'http://ns.adobe.com/Graphs/1.0/',
'ADOBE_SVG_VIEWER': 'http://ns.adobe.com/AdobeSVGViewerExtensions/3.0/',
'ADOBE_VARIABLES': 'http://ns.adobe.com/Variables/1.0/',
'ADOBE_SFW': 'http://ns.adobe.com/SaveForWeb/1.0/',
'ADOBE_EXTENSIBILITY': 'http://ns.adobe.com/Extensibility/1.0/',
'ADOBE_FLOWS': 'http://ns.adobe.com/Flows/1.0/',
'ADOBE_IMAGE_REPLACEMENT': 'http://ns.adobe.com/ImageReplacement/1.0/',
'ADOBE_CUSTOM': 'http://ns.adobe.com/GenericCustomNamespace/1.0/',
'ADOBE_XPATH': 'http://ns.adobe.com/XPath/1.0/'
};
var unwanted_ns = [ NS['SODIPODI'], NS['INKSCAPE'], NS['ADOBE_ILLUSTRATOR'],
NS['ADOBE_GRAPHS'], NS['ADOBE_SVG_VIEWER'], NS['ADOBE_VARIABLES'],
NS['ADOBE_SFW'], NS['ADOBE_EXTENSIBILITY'], NS['ADOBE_FLOWS'],
NS['ADOBE_IMAGE_REPLACEMENT'], NS['ADOBE_CUSTOM'], NS['ADOBE_XPATH'] ];
/**
* @param {pdom.Node|Node} node The parent node.
* @param {Array.<string>} namespaces An array of namespace URIs.
*/
var removeNamespacedElements = function(node, namespaces) {
if (node.nodeType == 1) {
// Remove all namespace'd child nodes from this element.
var childrenToRemove = [];
for (var i = 0; i < node.childNodes.length; ++i) {
var child = node.childNodes.item(i);
if (namespaces.indexOf(child.namespaceURI) != -1) {
childrenToRemove.push(child);
}
}
for (var i = 0; i < childrenToRemove.length; ++i) {
node.removeChild(childrenToRemove[i]);
}
// Now recurse for children.
for (var i = 0; i < node.childNodes.length; ++i) {
removeNamespacedElements(node.childNodes.item(i), namespaces);
}
}
};
/**
* @param {string} in_string The SVG document as a string.
* @param {object} opt_options An optional set of options.
*/
var scourString = function(in_string, opt_options) {
postMessage({progress: {loaded: 0, total: 100}});
var parser = new pdom.DOMParser();
var options = opt_options || {};
var doc = parser.parseFromString(in_string, 'text/xml');
// Remove editor stuff.
if (!options.keep_editor_data) {
removeNamespacedElements(doc.documentElement, unwanted_ns);
postMessage({message: 'Removed namespaced elements'});
}
return new pdom.XMLSerializer().serializeToString(doc);
};