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File: public/js/tinymce/src/core/src/main/js/html/Schema.js
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/** * Schema.js * * Released under LGPL License. * Copyright (c) 1999-2017 Ephox Corp. All rights reserved * * License: http://www.tinymce.com/license * Contributing: http://www.tinymce.com/contributing */ /** * Schema validator class. * * @class tinymce.html.Schema * @example * if (tinymce.activeEditor.schema.isValidChild('p', 'span')) * alert('span is valid child of p.'); * * if (tinymce.activeEditor.schema.getElementRule('p')) * alert('P is a valid element.'); * * @class tinymce.html.Schema * @version 3.4 */ define( 'tinymce.core.html.Schema', [ "tinymce.core.util.Tools" ], function (Tools) { var mapCache = {}, dummyObj = {}; var makeMap = Tools.makeMap, each = Tools.each, extend = Tools.extend, explode = Tools.explode, inArray = Tools.inArray; var split = function (items, delim) { items = Tools.trim(items); return items ? items.split(delim || ' ') : []; }; /** * Builds a schema lookup table * * @private * @param {String} type html4, html5 or html5-strict schema type. * @return {Object} Schema lookup table. */ var compileSchema = function (type) { var schema = {}, globalAttributes, blockContent; var phrasingContent, flowContent, html4BlockContent, html4PhrasingContent; var add = function (name, attributes, children) { var ni, attributesOrder, element; var arrayToMap = function (array, obj) { var map = {}, i, l; for (i = 0, l = array.length; i < l; i++) { map[array[i]] = obj || {}; } return map; }; children = children || []; attributes = attributes || ""; if (typeof children === "string") { children = split(children); } name = split(name); ni = name.length; while (ni--) { attributesOrder = split([globalAttributes, attributes].join(' ')); element = { attributes: arrayToMap(attributesOrder), attributesOrder: attributesOrder, children: arrayToMap(children, dummyObj) }; schema[name[ni]] = element; } }; var addAttrs = function (name, attributes) { var ni, schemaItem, i, l; name = split(name); ni = name.length; attributes = split(attributes); while (ni--) { schemaItem = schema[name[ni]]; for (i = 0, l = attributes.length; i < l; i++) { schemaItem.attributes[attributes[i]] = {}; schemaItem.attributesOrder.push(attributes[i]); } } }; // Use cached schema if (mapCache[type]) { return mapCache[type]; } // Attributes present on all elements globalAttributes = "id accesskey class dir lang style tabindex title role"; // Event attributes can be opt-in/opt-out /*eventAttributes = split("onabort onblur oncancel oncanplay oncanplaythrough onchange onclick onclose oncontextmenu oncuechange " + "ondblclick ondrag ondragend ondragenter ondragleave ondragover ondragstart ondrop ondurationchange onemptied onended " + "onerror onfocus oninput oninvalid onkeydown onkeypress onkeyup onload onloadeddata onloadedmetadata onloadstart " + "onmousedown onmousemove onmouseout onmouseover onmouseup onmousewheel onpause onplay onplaying onprogress onratechange " + "onreset onscroll onseeked onseeking onseeking onselect onshow onstalled onsubmit onsuspend ontimeupdate onvolumechange " + "onwaiting" );*/ // Block content elements blockContent = "address blockquote div dl fieldset form h1 h2 h3 h4 h5 h6 hr menu ol p pre table ul"; // Phrasing content elements from the HTML5 spec (inline) phrasingContent = "a abbr b bdo br button cite code del dfn em embed i iframe img input ins kbd " + "label map noscript object q s samp script select small span strong sub sup " + "textarea u var #text #comment" ; // Add HTML5 items to globalAttributes, blockContent, phrasingContent if (type != "html4") { globalAttributes += " contenteditable contextmenu draggable dropzone " + "hidden spellcheck translate"; blockContent += " article aside details dialog figure header footer hgroup section nav"; phrasingContent += " audio canvas command datalist mark meter output picture " + "progress time wbr video ruby bdi keygen"; } // Add HTML4 elements unless it's html5-strict if (type != "html5-strict") { globalAttributes += " xml:lang"; html4PhrasingContent = "acronym applet basefont big font strike tt"; phrasingContent = [phrasingContent, html4PhrasingContent].join(' '); each(split(html4PhrasingContent), function (name) { add(name, "", phrasingContent); }); html4BlockContent = "center dir isindex noframes"; blockContent = [blockContent, html4BlockContent].join(' '); // Flow content elements from the HTML5 spec (block+inline) flowContent = [blockContent, phrasingContent].join(' '); each(split(html4BlockContent), function (name) { add(name, "", flowContent); }); } // Flow content elements from the HTML5 spec (block+inline) flowContent = flowContent || [blockContent, phrasingContent].join(" "); // HTML4 base schema TODO: Move HTML5 specific attributes to HTML5 specific if statement // Schema items <element name>, <specific attributes>, <children ..> add("html", "manifest", "head body"); add("head", "", "base command link meta noscript script style title"); add("title hr noscript br"); add("base", "href target"); add("link", "href rel media hreflang type sizes hreflang"); add("meta", "name http-equiv content charset"); add("style", "media type scoped"); add("script", "src async defer type charset"); add("body", "onafterprint onbeforeprint onbeforeunload onblur onerror onfocus " + "onhashchange onload onmessage onoffline ononline onpagehide onpageshow " + "onpopstate onresize onscroll onstorage onunload", flowContent); add("address dt dd div caption", "", flowContent); add("h1 h2 h3 h4 h5 h6 pre p abbr code var samp kbd sub sup i b u bdo span legend em strong small s cite dfn", "", phrasingContent); add("blockquote", "cite", flowContent); add("ol", "reversed start type", "li"); add("ul", "", "li"); add("li", "value", flowContent); add("dl", "", "dt dd"); add("a", "href target rel media hreflang type", phrasingContent); add("q", "cite", phrasingContent); add("ins del", "cite datetime", flowContent); add("img", "src sizes srcset alt usemap ismap width height"); add("iframe", "src name width height", flowContent); add("embed", "src type width height"); add("object", "data type typemustmatch name usemap form width height", [flowContent, "param"].join(' ')); add("param", "name value"); add("map", "name", [flowContent, "area"].join(' ')); add("area", "alt coords shape href target rel media hreflang type"); add("table", "border", "caption colgroup thead tfoot tbody tr" + (type == "html4" ? " col" : "")); add("colgroup", "span", "col"); add("col", "span"); add("tbody thead tfoot", "", "tr"); add("tr", "", "td th"); add("td", "colspan rowspan headers", flowContent); add("th", "colspan rowspan headers scope abbr", flowContent); add("form", "accept-charset action autocomplete enctype method name novalidate target", flowContent); add("fieldset", "disabled form name", [flowContent, "legend"].join(' ')); add("label", "form for", phrasingContent); add("input", "accept alt autocomplete checked dirname disabled form formaction formenctype formmethod formnovalidate " + "formtarget height list max maxlength min multiple name pattern readonly required size src step type value width" ); add("button", "disabled form formaction formenctype formmethod formnovalidate formtarget name type value", type == "html4" ? flowContent : phrasingContent); add("select", "disabled form multiple name required size", "option optgroup"); add("optgroup", "disabled label", "option"); add("option", "disabled label selected value"); add("textarea", "cols dirname disabled form maxlength name readonly required rows wrap"); add("menu", "type label", [flowContent, "li"].join(' ')); add("noscript", "", flowContent); // Extend with HTML5 elements if (type != "html4") { add("wbr"); add("ruby", "", [phrasingContent, "rt rp"].join(' ')); add("figcaption", "", flowContent); add("mark rt rp summary bdi", "", phrasingContent); add("canvas", "width height", flowContent); add("video", "src crossorigin poster preload autoplay mediagroup loop " + "muted controls width height buffered", [flowContent, "track source"].join(' ')); add("audio", "src crossorigin preload autoplay mediagroup loop muted controls " + "buffered volume", [flowContent, "track source"].join(' ')); add("picture", "", "img source"); add("source", "src srcset type media sizes"); add("track", "kind src srclang label default"); add("datalist", "", [phrasingContent, "option"].join(' ')); add("article section nav aside header footer", "", flowContent); add("hgroup", "", "h1 h2 h3 h4 h5 h6"); add("figure", "", [flowContent, "figcaption"].join(' ')); add("time", "datetime", phrasingContent); add("dialog", "open", flowContent); add("command", "type label icon disabled checked radiogroup command"); add("output", "for form name", phrasingContent); add("progress", "value max", phrasingContent); add("meter", "value min max low high optimum", phrasingContent); add("details", "open", [flowContent, "summary"].join(' ')); add("keygen", "autofocus challenge disabled form keytype name"); } // Extend with HTML4 attributes unless it's html5-strict if (type != "html5-strict") { addAttrs("script", "language xml:space"); addAttrs("style", "xml:space"); addAttrs("object", "declare classid code codebase codetype archive standby align border hspace vspace"); addAttrs("embed", "align name hspace vspace"); addAttrs("param", "valuetype type"); addAttrs("a", "charset name rev shape coords"); addAttrs("br", "clear"); addAttrs("applet", "codebase archive code object alt name width height align hspace vspace"); addAttrs("img", "name longdesc align border hspace vspace"); addAttrs("iframe", "longdesc frameborder marginwidth marginheight scrolling align"); addAttrs("font basefont", "size color face"); addAttrs("input", "usemap align"); addAttrs("select", "onchange"); addAttrs("textarea"); addAttrs("h1 h2 h3 h4 h5 h6 div p legend caption", "align"); addAttrs("ul", "type compact"); addAttrs("li", "type"); addAttrs("ol dl menu dir", "compact"); addAttrs("pre", "width xml:space"); addAttrs("hr", "align noshade size width"); addAttrs("isindex", "prompt"); addAttrs("table", "summary width frame rules cellspacing cellpadding align bgcolor"); addAttrs("col", "width align char charoff valign"); addAttrs("colgroup", "width align char charoff valign"); addAttrs("thead", "align char charoff valign"); addAttrs("tr", "align char charoff valign bgcolor"); addAttrs("th", "axis align char charoff valign nowrap bgcolor width height"); addAttrs("form", "accept"); addAttrs("td", "abbr axis scope align char charoff valign nowrap bgcolor width height"); addAttrs("tfoot", "align char charoff valign"); addAttrs("tbody", "align char charoff valign"); addAttrs("area", "nohref"); addAttrs("body", "background bgcolor text link vlink alink"); } // Extend with HTML5 attributes unless it's html4 if (type != "html4") { addAttrs("input button select textarea", "autofocus"); addAttrs("input textarea", "placeholder"); addAttrs("a", "download"); addAttrs("link script img", "crossorigin"); addAttrs("iframe", "sandbox seamless allowfullscreen"); // Excluded: srcdoc } // Special: iframe, ruby, video, audio, label // Delete children of the same name from it's parent // For example: form can't have a child of the name form each(split('a form meter progress dfn'), function (name) { if (schema[name]) { delete schema[name].children[name]; } }); // Delete header, footer, sectioning and heading content descendants /*each('dt th address', function(name) { delete schema[name].children[name]; });*/ // Caption can't have tables delete schema.caption.children.table; // Delete scripts by default due to possible XSS delete schema.script; // TODO: LI:s can only have value if parent is OL // TODO: Handle transparent elements // a ins del canvas map mapCache[type] = schema; return schema; }; var compileElementMap = function (value, mode) { var styles; if (value) { styles = {}; if (typeof value == 'string') { value = { '*': value }; } // Convert styles into a rule list each(value, function (value, key) { styles[key] = styles[key.toUpperCase()] = mode == 'map' ? makeMap(value, /[, ]/) : explode(value, /[, ]/); }); } return styles; }; /** * Constructs a new Schema instance. * * @constructor * @method Schema * @param {Object} settings Name/value settings object. */ return function (settings) { var self = this, elements = {}, children = {}, patternElements = [], validStyles, invalidStyles, schemaItems; var whiteSpaceElementsMap, selfClosingElementsMap, shortEndedElementsMap, boolAttrMap, validClasses; var blockElementsMap, nonEmptyElementsMap, moveCaretBeforeOnEnterElementsMap, textBlockElementsMap, textInlineElementsMap; var customElementsMap = {}, specialElements = {}; // Creates an lookup table map object for the specified option or the default value var createLookupTable = function (option, defaultValue, extendWith) { var value = settings[option]; if (!value) { // Get cached default map or make it if needed value = mapCache[option]; if (!value) { value = makeMap(defaultValue, ' ', makeMap(defaultValue.toUpperCase(), ' ')); value = extend(value, extendWith); mapCache[option] = value; } } else { // Create custom map value = makeMap(value, /[, ]/, makeMap(value.toUpperCase(), /[, ]/)); } return value; }; settings = settings || {}; schemaItems = compileSchema(settings.schema); // Allow all elements and attributes if verify_html is set to false if (settings.verify_html === false) { settings.valid_elements = '*[*]'; } validStyles = compileElementMap(settings.valid_styles); invalidStyles = compileElementMap(settings.invalid_styles, 'map'); validClasses = compileElementMap(settings.valid_classes, 'map'); // Setup map objects whiteSpaceElementsMap = createLookupTable( 'whitespace_elements', 'pre script noscript style textarea video audio iframe object code' ); selfClosingElementsMap = createLookupTable('self_closing_elements', 'colgroup dd dt li option p td tfoot th thead tr'); shortEndedElementsMap = createLookupTable('short_ended_elements', 'area base basefont br col frame hr img input isindex link ' + 'meta param embed source wbr track'); boolAttrMap = createLookupTable('boolean_attributes', 'checked compact declare defer disabled ismap multiple nohref noresize ' + 'noshade nowrap readonly selected autoplay loop controls'); nonEmptyElementsMap = createLookupTable('non_empty_elements', 'td th iframe video audio object ' + 'script pre code', shortEndedElementsMap); moveCaretBeforeOnEnterElementsMap = createLookupTable('move_caret_before_on_enter_elements', 'table', nonEmptyElementsMap); textBlockElementsMap = createLookupTable('text_block_elements', 'h1 h2 h3 h4 h5 h6 p div address pre form ' + 'blockquote center dir fieldset header footer article section hgroup aside nav figure'); blockElementsMap = createLookupTable('block_elements', 'hr table tbody thead tfoot ' + 'th tr td li ol ul caption dl dt dd noscript menu isindex option ' + 'datalist select optgroup figcaption', textBlockElementsMap); textInlineElementsMap = createLookupTable('text_inline_elements', 'span strong b em i font strike u var cite ' + 'dfn code mark q sup sub samp'); each((settings.special || 'script noscript noframes noembed title style textarea xmp').split(' '), function (name) { specialElements[name] = new RegExp('<\/' + name + '[^>]*>', 'gi'); }); // Converts a wildcard expression string to a regexp for example *a will become /.*a/. var patternToRegExp = function (str) { return new RegExp('^' + str.replace(/([?+*])/g, '.$1') + '$'); }; // Parses the specified valid_elements string and adds to the current rules // This function is a bit hard to read since it's heavily optimized for speed var addValidElements = function (validElements) { var ei, el, ai, al, matches, element, attr, attrData, elementName, attrName, attrType, attributes, attributesOrder, prefix, outputName, globalAttributes, globalAttributesOrder, key, value, elementRuleRegExp = /^([#+\-])?([^\[!\/]+)(?:\/([^\[!]+))?(?:(!?)\[([^\]]+)\])?$/, attrRuleRegExp = /^([!\-])?(\w+[\\:]:\w+|[^=:<]+)?(?:([=:<])(.*))?$/, hasPatternsRegExp = /[*?+]/; if (validElements) { // Split valid elements into an array with rules validElements = split(validElements, ','); if (elements['@']) { globalAttributes = elements['@'].attributes; globalAttributesOrder = elements['@'].attributesOrder; } // Loop all rules for (ei = 0, el = validElements.length; ei < el; ei++) { // Parse element rule matches = elementRuleRegExp.exec(validElements[ei]); if (matches) { // Setup local names for matches prefix = matches[1]; elementName = matches[2]; outputName = matches[3]; attrData = matches[5]; // Create new attributes and attributesOrder attributes = {}; attributesOrder = []; // Create the new element element = { attributes: attributes, attributesOrder: attributesOrder }; // Padd empty elements prefix if (prefix === '#') { element.paddEmpty = true; } // Remove empty elements prefix if (prefix === '-') { element.removeEmpty = true; } if (matches[4] === '!') { element.removeEmptyAttrs = true; } // Copy attributes from global rule into current rule if (globalAttributes) { for (key in globalAttributes) { attributes[key] = globalAttributes[key]; } attributesOrder.push.apply(attributesOrder, globalAttributesOrder); } // Attributes defined if (attrData) { attrData = split(attrData, '|'); for (ai = 0, al = attrData.length; ai < al; ai++) { matches = attrRuleRegExp.exec(attrData[ai]); if (matches) { attr = {}; attrType = matches[1]; attrName = matches[2].replace(/[\\:]:/g, ':'); prefix = matches[3]; value = matches[4]; // Required if (attrType === '!') { element.attributesRequired = element.attributesRequired || []; element.attributesRequired.push(attrName); attr.required = true; } // Denied from global if (attrType === '-') { delete attributes[attrName]; attributesOrder.splice(inArray(attributesOrder, attrName), 1); continue; } // Default value if (prefix) { // Default value if (prefix === '=') { element.attributesDefault = element.attributesDefault || []; element.attributesDefault.push({ name: attrName, value: value }); attr.defaultValue = value; } // Forced value if (prefix === ':') { element.attributesForced = element.attributesForced || []; element.attributesForced.push({ name: attrName, value: value }); attr.forcedValue = value; } // Required values if (prefix === '<') { attr.validValues = makeMap(value, '?'); } } // Check for attribute patterns if (hasPatternsRegExp.test(attrName)) { element.attributePatterns = element.attributePatterns || []; attr.pattern = patternToRegExp(attrName); element.attributePatterns.push(attr); } else { // Add attribute to order list if it doesn't already exist if (!attributes[attrName]) { attributesOrder.push(attrName); } attributes[attrName] = attr; } } } } // Global rule, store away these for later usage if (!globalAttributes && elementName == '@') { globalAttributes = attributes; globalAttributesOrder = attributesOrder; } // Handle substitute elements such as b/strong if (outputName) { element.outputName = elementName; elements[outputName] = element; } // Add pattern or exact element if (hasPatternsRegExp.test(elementName)) { element.pattern = patternToRegExp(elementName); patternElements.push(element); } else { elements[elementName] = element; } } } } }; var setValidElements = function (validElements) { elements = {}; patternElements = []; addValidElements(validElements); each(schemaItems, function (element, name) { children[name] = element.children; }); }; // Adds custom non HTML elements to the schema var addCustomElements = function (customElements) { var customElementRegExp = /^(~)?(.+)$/; if (customElements) { // Flush cached items since we are altering the default maps mapCache.text_block_elements = mapCache.block_elements = null; each(split(customElements, ','), function (rule) { var matches = customElementRegExp.exec(rule), inline = matches[1] === '~', cloneName = inline ? 'span' : 'div', name = matches[2]; children[name] = children[cloneName]; customElementsMap[name] = cloneName; // If it's not marked as inline then add it to valid block elements if (!inline) { blockElementsMap[name.toUpperCase()] = {}; blockElementsMap[name] = {}; } // Add elements clone if needed if (!elements[name]) { var customRule = elements[cloneName]; customRule = extend({}, customRule); delete customRule.removeEmptyAttrs; delete customRule.removeEmpty; elements[name] = customRule; } // Add custom elements at span/div positions each(children, function (element, elmName) { if (element[cloneName]) { children[elmName] = element = extend({}, children[elmName]); element[name] = element[cloneName]; } }); }); } }; // Adds valid children to the schema object var addValidChildren = function (validChildren) { var childRuleRegExp = /^([+\-]?)(\w+)\[([^\]]+)\]$/; // Invalidate the schema cache if the schema is mutated mapCache[settings.schema] = null; if (validChildren) { each(split(validChildren, ','), function (rule) { var matches = childRuleRegExp.exec(rule), parent, prefix; if (matches) { prefix = matches[1]; // Add/remove items from default if (prefix) { parent = children[matches[2]]; } else { parent = children[matches[2]] = { '#comment': {} }; } parent = children[matches[2]]; each(split(matches[3], '|'), function (child) { if (prefix === '-') { delete parent[child]; } else { parent[child] = {}; } }); } }); } }; var getElementRule = function (name) { var element = elements[name], i; // Exact match found if (element) { return element; } // No exact match then try the patterns i = patternElements.length; while (i--) { element = patternElements[i]; if (element.pattern.test(name)) { return element; } } }; if (!settings.valid_elements) { // No valid elements defined then clone the elements from the schema spec each(schemaItems, function (element, name) { elements[name] = { attributes: element.attributes, attributesOrder: element.attributesOrder }; children[name] = element.children; }); // Switch these on HTML4 if (settings.schema != "html5") { each(split('strong/b em/i'), function (item) { item = split(item, '/'); elements[item[1]].outputName = item[0]; }); } // Add default alt attribute for images, removed since alt="" is treated as presentational. // elements.img.attributesDefault = [{name: 'alt', value: ''}]; // Remove these if they are empty by default each(split('ol ul sub sup blockquote span font a table tbody tr strong em b i'), function (name) { if (elements[name]) { elements[name].removeEmpty = true; } }); // Padd these by default each(split('p h1 h2 h3 h4 h5 h6 th td pre div address caption li'), function (name) { elements[name].paddEmpty = true; }); // Remove these if they have no attributes each(split('span'), function (name) { elements[name].removeEmptyAttrs = true; }); // Remove these by default // TODO: Reenable in 4.1 /*each(split('script style'), function(name) { delete elements[name]; });*/ } else { setValidElements(settings.valid_elements); } addCustomElements(settings.custom_elements); addValidChildren(settings.valid_children); addValidElements(settings.extended_valid_elements); // Todo: Remove this when we fix list handling to be valid addValidChildren('+ol[ul|ol],+ul[ul|ol]'); // Some elements are not valid by themselves - require parents each({ dd: 'dl', dt: 'dl', li: 'ul ol', td: 'tr', th: 'tr', tr: 'tbody thead tfoot', tbody: 'table', thead: 'table', tfoot: 'table', legend: 'fieldset', area: 'map', param: 'video audio object' }, function (parents, item) { if (elements[item]) { elements[item].parentsRequired = split(parents); } }); // Delete invalid elements if (settings.invalid_elements) { each(explode(settings.invalid_elements), function (item) { if (elements[item]) { delete elements[item]; } }); } // If the user didn't allow span only allow internal spans if (!getElementRule('span')) { addValidElements('span[!data-mce-type|*]'); } /** * Name/value map object with valid parents and children to those parents. * * @example * children = { * div:{p:{}, h1:{}} * }; * @field children * @type Object */ self.children = children; /** * Name/value map object with valid styles for each element. * * @method getValidStyles * @type Object */ self.getValidStyles = function () { return validStyles; }; /** * Name/value map object with valid styles for each element. * * @method getInvalidStyles * @type Object */ self.getInvalidStyles = function () { return invalidStyles; }; /** * Name/value map object with valid classes for each element. * * @method getValidClasses * @type Object */ self.getValidClasses = function () { return validClasses; }; /** * Returns a map with boolean attributes. * * @method getBoolAttrs * @return {Object} Name/value lookup map for boolean attributes. */ self.getBoolAttrs = function () { return boolAttrMap; }; /** * Returns a map with block elements. * * @method getBlockElements * @return {Object} Name/value lookup map for block elements. */ self.getBlockElements = function () { return blockElementsMap; }; /** * Returns a map with text block elements. Such as: p,h1-h6,div,address * * @method getTextBlockElements * @return {Object} Name/value lookup map for block elements. */ self.getTextBlockElements = function () { return textBlockElementsMap; }; /** * Returns a map of inline text format nodes for example strong/span or ins. * * @method getTextInlineElements * @return {Object} Name/value lookup map for text format elements. */ self.getTextInlineElements = function () { return textInlineElementsMap; }; /** * Returns a map with short ended elements such as BR or IMG. * * @method getShortEndedElements * @return {Object} Name/value lookup map for short ended elements. */ self.getShortEndedElements = function () { return shortEndedElementsMap; }; /** * Returns a map with self closing tags such as <li>. * * @method getSelfClosingElements * @return {Object} Name/value lookup map for self closing tags elements. */ self.getSelfClosingElements = function () { return selfClosingElementsMap; }; /** * Returns a map with elements that should be treated as contents regardless if it has text * content in them or not such as TD, VIDEO or IMG. * * @method getNonEmptyElements * @return {Object} Name/value lookup map for non empty elements. */ self.getNonEmptyElements = function () { return nonEmptyElementsMap; }; /** * Returns a map with elements that the caret should be moved in front of after enter is * pressed * * @method getMoveCaretBeforeOnEnterElements * @return {Object} Name/value lookup map for elements to place the caret in front of. */ self.getMoveCaretBeforeOnEnterElements = function () { return moveCaretBeforeOnEnterElementsMap; }; /** * Returns a map with elements where white space is to be preserved like PRE or SCRIPT. * * @method getWhiteSpaceElements * @return {Object} Name/value lookup map for white space elements. */ self.getWhiteSpaceElements = function () { return whiteSpaceElementsMap; }; /** * Returns a map with special elements. These are elements that needs to be parsed * in a special way such as script, style, textarea etc. The map object values * are regexps used to find the end of the element. * * @method getSpecialElements * @return {Object} Name/value lookup map for special elements. */ self.getSpecialElements = function () { return specialElements; }; /** * Returns true/false if the specified element and it's child is valid or not * according to the schema. * * @method isValidChild * @param {String} name Element name to check for. * @param {String} child Element child to verify. * @return {Boolean} True/false if the element is a valid child of the specified parent. */ self.isValidChild = function (name, child) { var parent = children[name.toLowerCase()]; return !!(parent && parent[child.toLowerCase()]); }; /** * Returns true/false if the specified element name and optional attribute is * valid according to the schema. * * @method isValid * @param {String} name Name of element to check. * @param {String} attr Optional attribute name to check for. * @return {Boolean} True/false if the element and attribute is valid. */ self.isValid = function (name, attr) { var attrPatterns, i, rule = getElementRule(name); // Check if it's a valid element if (rule) { if (attr) { // Check if attribute name exists if (rule.attributes[attr]) { return true; } // Check if attribute matches a regexp pattern attrPatterns = rule.attributePatterns; if (attrPatterns) { i = attrPatterns.length; while (i--) { if (attrPatterns[i].pattern.test(name)) { return true; } } } } else { return true; } } // No match return false; }; /** * Returns true/false if the specified element is valid or not * according to the schema. * * @method getElementRule * @param {String} name Element name to check for. * @return {Object} Element object or undefined if the element isn't valid. */ self.getElementRule = getElementRule; /** * Returns an map object of all custom elements. * * @method getCustomElements * @return {Object} Name/value map object of all custom elements. */ self.getCustomElements = function () { return customElementsMap; }; /** * Parses a valid elements string and adds it to the schema. The valid elements * format is for example "element[attr=default|otherattr]". * Existing rules will be replaced with the ones specified, so this extends the schema. * * @method addValidElements * @param {String} valid_elements String in the valid elements format to be parsed. */ self.addValidElements = addValidElements; /** * Parses a valid elements string and sets it to the schema. The valid elements * format is for example "element[attr=default|otherattr]". * Existing rules will be replaced with the ones specified, so this extends the schema. * * @method setValidElements * @param {String} valid_elements String in the valid elements format to be parsed. */ self.setValidElements = setValidElements; /** * Adds custom non HTML elements to the schema. * * @method addCustomElements * @param {String} custom_elements Comma separated list of custom elements to add. */ self.addCustomElements = addCustomElements; /** * Parses a valid children string and adds them to the schema structure. The valid children * format is for example: "element[child1|child2]". * * @method addValidChildren * @param {String} valid_children Valid children elements string to parse */ self.addValidChildren = addValidChildren; self.elements = elements; }; } );