| 'use strict'; |
| |
| var Tokenizer = require('../tokenization/tokenizer'), |
| HTML = require('./html'); |
| |
| //Aliases |
| var $ = HTML.TAG_NAMES, |
| NS = HTML.NAMESPACES, |
| ATTRS = HTML.ATTRS; |
| |
| |
| //MIME types |
| var MIME_TYPES = { |
| TEXT_HTML: 'text/html', |
| APPLICATION_XML: 'application/xhtml+xml' |
| }; |
| |
| //Attributes |
| var DEFINITION_URL_ATTR = 'definitionurl', |
| ADJUSTED_DEFINITION_URL_ATTR = 'definitionURL', |
| SVG_ATTRS_ADJUSTMENT_MAP = { |
| 'attributename': 'attributeName', |
| 'attributetype': 'attributeType', |
| 'basefrequency': 'baseFrequency', |
| 'baseprofile': 'baseProfile', |
| 'calcmode': 'calcMode', |
| 'clippathunits': 'clipPathUnits', |
| 'contentscripttype': 'contentScriptType', |
| 'contentstyletype': 'contentStyleType', |
| 'diffuseconstant': 'diffuseConstant', |
| 'edgemode': 'edgeMode', |
| 'externalresourcesrequired': 'externalResourcesRequired', |
| 'filterres': 'filterRes', |
| 'filterunits': 'filterUnits', |
| 'glyphref': 'glyphRef', |
| 'gradienttransform': 'gradientTransform', |
| 'gradientunits': 'gradientUnits', |
| 'kernelmatrix': 'kernelMatrix', |
| 'kernelunitlength': 'kernelUnitLength', |
| 'keypoints': 'keyPoints', |
| 'keysplines': 'keySplines', |
| 'keytimes': 'keyTimes', |
| 'lengthadjust': 'lengthAdjust', |
| 'limitingconeangle': 'limitingConeAngle', |
| 'markerheight': 'markerHeight', |
| 'markerunits': 'markerUnits', |
| 'markerwidth': 'markerWidth', |
| 'maskcontentunits': 'maskContentUnits', |
| 'maskunits': 'maskUnits', |
| 'numoctaves': 'numOctaves', |
| 'pathlength': 'pathLength', |
| 'patterncontentunits': 'patternContentUnits', |
| 'patterntransform': 'patternTransform', |
| 'patternunits': 'patternUnits', |
| 'pointsatx': 'pointsAtX', |
| 'pointsaty': 'pointsAtY', |
| 'pointsatz': 'pointsAtZ', |
| 'preservealpha': 'preserveAlpha', |
| 'preserveaspectratio': 'preserveAspectRatio', |
| 'primitiveunits': 'primitiveUnits', |
| 'refx': 'refX', |
| 'refy': 'refY', |
| 'repeatcount': 'repeatCount', |
| 'repeatdur': 'repeatDur', |
| 'requiredextensions': 'requiredExtensions', |
| 'requiredfeatures': 'requiredFeatures', |
| 'specularconstant': 'specularConstant', |
| 'specularexponent': 'specularExponent', |
| 'spreadmethod': 'spreadMethod', |
| 'startoffset': 'startOffset', |
| 'stddeviation': 'stdDeviation', |
| 'stitchtiles': 'stitchTiles', |
| 'surfacescale': 'surfaceScale', |
| 'systemlanguage': 'systemLanguage', |
| 'tablevalues': 'tableValues', |
| 'targetx': 'targetX', |
| 'targety': 'targetY', |
| 'textlength': 'textLength', |
| 'viewbox': 'viewBox', |
| 'viewtarget': 'viewTarget', |
| 'xchannelselector': 'xChannelSelector', |
| 'ychannelselector': 'yChannelSelector', |
| 'zoomandpan': 'zoomAndPan' |
| }, |
| XML_ATTRS_ADJUSTMENT_MAP = { |
| 'xlink:actuate': {prefix: 'xlink', name: 'actuate', namespace: NS.XLINK}, |
| 'xlink:arcrole': {prefix: 'xlink', name: 'arcrole', namespace: NS.XLINK}, |
| 'xlink:href': {prefix: 'xlink', name: 'href', namespace: NS.XLINK}, |
| 'xlink:role': {prefix: 'xlink', name: 'role', namespace: NS.XLINK}, |
| 'xlink:show': {prefix: 'xlink', name: 'show', namespace: NS.XLINK}, |
| 'xlink:title': {prefix: 'xlink', name: 'title', namespace: NS.XLINK}, |
| 'xlink:type': {prefix: 'xlink', name: 'type', namespace: NS.XLINK}, |
| 'xml:base': {prefix: 'xml', name: 'base', namespace: NS.XML}, |
| 'xml:lang': {prefix: 'xml', name: 'lang', namespace: NS.XML}, |
| 'xml:space': {prefix: 'xml', name: 'space', namespace: NS.XML}, |
| 'xmlns': {prefix: '', name: 'xmlns', namespace: NS.XMLNS}, |
| 'xmlns:xlink': {prefix: 'xmlns', name: 'xlink', namespace: NS.XMLNS} |
| |
| }; |
| |
| //SVG tag names adjustment map |
| var SVG_TAG_NAMES_ADJUSTMENT_MAP = { |
| 'altglyph': 'altGlyph', |
| 'altglyphdef': 'altGlyphDef', |
| 'altglyphitem': 'altGlyphItem', |
| 'animatecolor': 'animateColor', |
| 'animatemotion': 'animateMotion', |
| 'animatetransform': 'animateTransform', |
| 'clippath': 'clipPath', |
| 'feblend': 'feBlend', |
| 'fecolormatrix': 'feColorMatrix', |
| 'fecomponenttransfer': 'feComponentTransfer', |
| 'fecomposite': 'feComposite', |
| 'feconvolvematrix': 'feConvolveMatrix', |
| 'fediffuselighting': 'feDiffuseLighting', |
| 'fedisplacementmap': 'feDisplacementMap', |
| 'fedistantlight': 'feDistantLight', |
| 'feflood': 'feFlood', |
| 'fefunca': 'feFuncA', |
| 'fefuncb': 'feFuncB', |
| 'fefuncg': 'feFuncG', |
| 'fefuncr': 'feFuncR', |
| 'fegaussianblur': 'feGaussianBlur', |
| 'feimage': 'feImage', |
| 'femerge': 'feMerge', |
| 'femergenode': 'feMergeNode', |
| 'femorphology': 'feMorphology', |
| 'feoffset': 'feOffset', |
| 'fepointlight': 'fePointLight', |
| 'fespecularlighting': 'feSpecularLighting', |
| 'fespotlight': 'feSpotLight', |
| 'fetile': 'feTile', |
| 'feturbulence': 'feTurbulence', |
| 'foreignobject': 'foreignObject', |
| 'glyphref': 'glyphRef', |
| 'lineargradient': 'linearGradient', |
| 'radialgradient': 'radialGradient', |
| 'textpath': 'textPath' |
| }; |
| |
| //Tags that causes exit from foreign content |
| var EXITS_FOREIGN_CONTENT = {}; |
| |
| EXITS_FOREIGN_CONTENT[$.B] = true; |
| EXITS_FOREIGN_CONTENT[$.BIG] = true; |
| EXITS_FOREIGN_CONTENT[$.BLOCKQUOTE] = true; |
| EXITS_FOREIGN_CONTENT[$.BODY] = true; |
| EXITS_FOREIGN_CONTENT[$.BR] = true; |
| EXITS_FOREIGN_CONTENT[$.CENTER] = true; |
| EXITS_FOREIGN_CONTENT[$.CODE] = true; |
| EXITS_FOREIGN_CONTENT[$.DD] = true; |
| EXITS_FOREIGN_CONTENT[$.DIV] = true; |
| EXITS_FOREIGN_CONTENT[$.DL] = true; |
| EXITS_FOREIGN_CONTENT[$.DT] = true; |
| EXITS_FOREIGN_CONTENT[$.EM] = true; |
| EXITS_FOREIGN_CONTENT[$.EMBED] = true; |
| EXITS_FOREIGN_CONTENT[$.H1] = true; |
| EXITS_FOREIGN_CONTENT[$.H2] = true; |
| EXITS_FOREIGN_CONTENT[$.H3] = true; |
| EXITS_FOREIGN_CONTENT[$.H4] = true; |
| EXITS_FOREIGN_CONTENT[$.H5] = true; |
| EXITS_FOREIGN_CONTENT[$.H6] = true; |
| EXITS_FOREIGN_CONTENT[$.HEAD] = true; |
| EXITS_FOREIGN_CONTENT[$.HR] = true; |
| EXITS_FOREIGN_CONTENT[$.I] = true; |
| EXITS_FOREIGN_CONTENT[$.IMG] = true; |
| EXITS_FOREIGN_CONTENT[$.LI] = true; |
| EXITS_FOREIGN_CONTENT[$.LISTING] = true; |
| EXITS_FOREIGN_CONTENT[$.MENU] = true; |
| EXITS_FOREIGN_CONTENT[$.META] = true; |
| EXITS_FOREIGN_CONTENT[$.NOBR] = true; |
| EXITS_FOREIGN_CONTENT[$.OL] = true; |
| EXITS_FOREIGN_CONTENT[$.P] = true; |
| EXITS_FOREIGN_CONTENT[$.PRE] = true; |
| EXITS_FOREIGN_CONTENT[$.RUBY] = true; |
| EXITS_FOREIGN_CONTENT[$.S] = true; |
| EXITS_FOREIGN_CONTENT[$.SMALL] = true; |
| EXITS_FOREIGN_CONTENT[$.SPAN] = true; |
| EXITS_FOREIGN_CONTENT[$.STRONG] = true; |
| EXITS_FOREIGN_CONTENT[$.STRIKE] = true; |
| EXITS_FOREIGN_CONTENT[$.SUB] = true; |
| EXITS_FOREIGN_CONTENT[$.SUP] = true; |
| EXITS_FOREIGN_CONTENT[$.TABLE] = true; |
| EXITS_FOREIGN_CONTENT[$.TT] = true; |
| EXITS_FOREIGN_CONTENT[$.U] = true; |
| EXITS_FOREIGN_CONTENT[$.UL] = true; |
| EXITS_FOREIGN_CONTENT[$.VAR] = true; |
| |
| //Check exit from foreign content |
| exports.causesExit = function (startTagToken) { |
| var tn = startTagToken.tagName; |
| |
| if (tn === $.FONT && (Tokenizer.getTokenAttr(startTagToken, ATTRS.COLOR) !== null || |
| Tokenizer.getTokenAttr(startTagToken, ATTRS.SIZE) !== null || |
| Tokenizer.getTokenAttr(startTagToken, ATTRS.FACE) !== null)) { |
| return true; |
| } |
| |
| return EXITS_FOREIGN_CONTENT[tn]; |
| }; |
| |
| //Token adjustments |
| exports.adjustTokenMathMLAttrs = function (token) { |
| for (var i = 0; i < token.attrs.length; i++) { |
| if (token.attrs[i].name === DEFINITION_URL_ATTR) { |
| token.attrs[i].name = ADJUSTED_DEFINITION_URL_ATTR; |
| break; |
| } |
| } |
| }; |
| |
| exports.adjustTokenSVGAttrs = function (token) { |
| for (var i = 0; i < token.attrs.length; i++) { |
| var adjustedAttrName = SVG_ATTRS_ADJUSTMENT_MAP[token.attrs[i].name]; |
| |
| if (adjustedAttrName) |
| token.attrs[i].name = adjustedAttrName; |
| } |
| }; |
| |
| exports.adjustTokenXMLAttrs = function (token) { |
| for (var i = 0; i < token.attrs.length; i++) { |
| var adjustedAttrEntry = XML_ATTRS_ADJUSTMENT_MAP[token.attrs[i].name]; |
| |
| if (adjustedAttrEntry) { |
| token.attrs[i].prefix = adjustedAttrEntry.prefix; |
| token.attrs[i].name = adjustedAttrEntry.name; |
| token.attrs[i].namespace = adjustedAttrEntry.namespace; |
| } |
| } |
| }; |
| |
| exports.adjustTokenSVGTagName = function (token) { |
| var adjustedTagName = SVG_TAG_NAMES_ADJUSTMENT_MAP[token.tagName]; |
| |
| if (adjustedTagName) |
| token.tagName = adjustedTagName; |
| }; |
| |
| //Integration points |
| exports.isMathMLTextIntegrationPoint = function (tn, ns) { |
| return ns === NS.MATHML && (tn === $.MI || tn === $.MO || tn === $.MN || tn === $.MS || tn === $.MTEXT); |
| }; |
| |
| exports.isHtmlIntegrationPoint = function (tn, ns, attrs) { |
| if (ns === NS.MATHML && tn === $.ANNOTATION_XML) { |
| for (var i = 0; i < attrs.length; i++) { |
| if (attrs[i].name === ATTRS.ENCODING) { |
| var value = attrs[i].value.toLowerCase(); |
| |
| return value === MIME_TYPES.TEXT_HTML || value === MIME_TYPES.APPLICATION_XML; |
| } |
| } |
| } |
| |
| return ns === NS.SVG && (tn === $.FOREIGN_OBJECT || tn === $.DESC || tn === $.TITLE); |
| }; |