/** * Credits: * - SVG Processing from the NYTimes svg-crowbar, under an MIT license * https://github.com/NYTimes/svg-crowbar * - Thanks to the grunticon project for some guidance * https://github.com/filamentgroup/grunticon */ phantom.onError = function(msg, trace) { var msgStack = ['PHANTOM ERROR: ' + msg] if (trace && trace.length) { msgStack.push('TRACE:') trace.forEach(function(t) { msgStack.push( ' -> ' + (t.file || t.sourceURL) + ': ' + t.line + (t.function ? ' (in function ' + t.function +')' : '') ) }) } system.stderr.write(msgStack.join('\n')) phantom.exit(1) } var system = require('system') , fs = require('fs') , webpage = require('webpage') var page = webpage.create() , files = phantom.args.slice(4, phantom.args.length) , options = { outputDir: phantom.args[0] , png: phantom.args[1] === 'true' ? true : false , svg: phantom.args[2] === 'true' ? true : false , verbose: phantom.args[3] === 'true' ? true : false } , log = logger(options.verbose) page.content = [ '' , '' , '' , '' , '' , '' , '' ].join('\n') page.injectJs('../dist/mermaid.full.js') files.forEach(function(file) { var contents = fs.read(file) , filename = file.split(fs.separator).slice(-1) , oParser = new DOMParser() , oDOM , svgContent , allElements // this JS is executed in this statement is sandboxed, even though it doesn't // look like it. we need to serialize then unserialize the svgContent that's // taken from the DOM svgContent = page.evaluate(executeInPage, contents) oDOM = oParser.parseFromString(svgContent, "text/xml") resolveSVGElement(oDOM.firstChild) // traverse the SVG, and replace all foreignObject elements // can be removed when https://github.com/knsv/mermaid/issues/58 is resolved allElements = traverse(oDOM) for (var i = 0, len = allElements.length; i < len; i++) { resolveForeignObjects(allElements[i]) } if (options.png) { page.viewportSize = { width: ~~oDOM.documentElement.attributes.getNamedItem('width').value , height: ~~oDOM.documentElement.attributes.getNamedItem('height').value } page.render(options.outputDir + fs.separator + filename + '.png') log('saved png: ' + filename + '.png') } if (options.svg) { var serialize = new XMLSerializer() fs.write( options.outputDir + fs.separator + filename + '.svg' , serialize.serializeToString(oDOM) , 'w' ) log('saved svg: ' + filename + '.svg') } }) phantom.exit() function logger(_verbose) { var verbose = _verbose return function(_message, _level) { var level = level , message = _message , log log = level === 'error' ? system.stderr : system.stdout if (verbose) { log.write(message + '\n') } } } function traverse(obj){ var tree = [] tree.push(obj) visit(obj) function visit(node) { if (node && node.hasChildNodes()) { var child = node.firstChild while (child) { if (child.nodeType === 1 && child.nodeName != 'SCRIPT'){ tree.push(child) visit(child) } child = child.nextSibling } } } return tree } function resolveSVGElement(element) { var prefix = { xmlns: "http://www.w3.org/2000/xmlns/" , xlink: "http://www.w3.org/1999/xlink" , svg: "http://www.w3.org/2000/svg" } , doctype = '' element.setAttribute("version", "1.1") // removing attributes so they aren't doubled up element.removeAttribute("xmlns") element.removeAttribute("xlink") // These are needed for the svg if (!element.hasAttributeNS(prefix.xmlns, "xmlns")) { element.setAttributeNS(prefix.xmlns, "xmlns", prefix.svg) } if (!element.hasAttributeNS(prefix.xmlns, "xmlns:xlink")) { element.setAttributeNS(prefix.xmlns, "xmlns:xlink", prefix.xlink) } } function resolveForeignObjects(element) { var children , textElement , textSpan if (element.tagName === 'foreignObject') { textElement = document.createElement('text') textSpan = document.createElement('tspan') textSpan.setAttribute( 'style' , 'font-size: 11.5pt; font-family: "sans-serif";' ) textSpan.setAttribute('x', 0) textSpan.setAttribute('y', 14.5) textSpan.textContent = element.textContent textElement.appendChild(textSpan) element.parentElement.appendChild(textElement) element.parentElement.removeChild(element) } } // The sandboxed function that's executed in-page by phantom function executeInPage(contents) { var xmlSerializer = new XMLSerializer() , toRemove , el , elContent , svg , svgValue toRemove = document.getElementsByClassName('mermaid') if (toRemove && toRemove.length) { for (var i = 0, len = toRemove.length; i < len; i++) { toRemove[i].parentNode.removeChild(toRemove[i]) } } el = document.createElement("div") el.className = 'mermaid' elContent = document.createTextNode(contents) el.appendChild(elContent) document.body.appendChild(el) mermaid.init() svg = document.querySelector('svg') svgValue = xmlSerializer.serializeToString(svg) return svgValue }