/**
* A NodeIterator with iframes support and a method to check if an element is
* matching a specified selector
* @example
* const iterator = new DOMIterator(
* document.querySelector("#context"), true
* );
* iterator.forEachNode(NodeFilter.SHOW_TEXT, node => {
* console.log(node);
* }, node => {
* if(DOMIterator.matches(node.parentNode, ".ignore")){
* return NodeFilter.FILTER_REJECT;
* } else {
* return NodeFilter.FILTER_ACCEPT;
* }
* }, () => {
* console.log("DONE");
* });
* @todo Outsource into separate repository
*/
class DOMIterator {
/**
* @param {HTMLElement|HTMLElement[]|NodeList|string} ctx - The context DOM
* element, an array of DOM elements, a NodeList or a selector
* @param {boolean} [iframes=true] - A boolean indicating if iframes should
* be handled
* @param {string[]} [exclude=[]] - An array containing exclusion selectors
* for iframes
* @param {number} [iframesTimeout=5000] - A number indicating the ms to
* wait before an iframe should be skipped, in case the load event isn't
* fired. This also applies if the user is offline and the resource of the
* iframe is online (either by the browsers "offline" mode or because
* there's no internet connection)
*/
constructor(ctx, iframes = true, exclude = [], iframesTimeout = 5000) {
/**
* The context of the instance. Either a DOM element, an array of DOM
* elements, a NodeList or a selector
* @type {HTMLElement|HTMLElement[]|NodeList|string}
* @access protected
*/
this.ctx = ctx;
/**
* Boolean indicating if iframe support is enabled
* @type {boolean}
* @access protected
*/
this.iframes = iframes;
/**
* An array containing exclusion selectors for iframes
* @type {string[]}
*/
this.exclude = exclude;
/**
* The maximum ms to wait for a load event before skipping an iframe
* @type {number}
*/
this.iframesTimeout = iframesTimeout;
}
/**
* Checks if the specified DOM element matches the selector
* @param {HTMLElement} element - The DOM element
* @param {string|string[]} selector - The selector or an array with
* selectors
* @return {boolean}
* @access public
*/
static matches(element, selector) {
const selectors = typeof selector === 'string' ? [selector] : selector,
fn = element.matches || element.matchesSelector || element.msMatchesSelector || element.mozMatchesSelector || element.oMatchesSelector || element.webkitMatchesSelector;
if (fn) {
let match = false;
selectors.every(sel => {
if (fn.call(element, sel)) {
match = true;
return false;
}
return true;
});
return match;
} else {
// may be false e.g. when el is a textNode
return false;
}
}
/**
* Returns all contexts filtered by duplicates (even nested)
* @return {HTMLElement[]} - An array containing DOM contexts
* @access protected
*/
getContexts() {
let ctx,
filteredCtx = [];
if (typeof this.ctx === 'undefined' || !this.ctx) {
// e.g. null
ctx = [];
} else if (NodeList.prototype.isPrototypeOf(this.ctx)) {
ctx = Array.prototype.slice.call(this.ctx);
} else if (Array.isArray(this.ctx)) {
ctx = this.ctx;
} else if (typeof this.ctx === 'string') {
ctx = Array.prototype.slice.call(document.querySelectorAll(this.ctx));
} else {
// e.g. HTMLElement or element inside iframe
ctx = [this.ctx];
} // filter duplicate text nodes
ctx.forEach(ctx => {
const isDescendant = filteredCtx.filter(contexts => {
return contexts.contains(ctx);
}).length > 0;
if (filteredCtx.indexOf(ctx) === -1 && !isDescendant) {
filteredCtx.push(ctx);
}
});
return filteredCtx;
}
/**
* @callback DOMIterator~getIframeContentsSuccessCallback
* @param {HTMLDocument} contents - The contentDocument of the iframe
*/
/**
* Calls the success callback function with the iframe document. If it can't
* be accessed it calls the error callback function
* @param {HTMLElement} ifr - The iframe DOM element
* @param {DOMIterator~getIframeContentsSuccessCallback} successFn
* @param {function} [errorFn]
* @access protected
*/
getIframeContents(ifr, successFn, errorFn = () => {}) {
let doc;
try {
const ifrWin = ifr.contentWindow;
doc = ifrWin.document;
if (!ifrWin || !doc) {
// no permission = null. Undefined in Phantom
throw new Error('iframe inaccessible');
}
} catch (e) {
errorFn();
}
if (doc) {
successFn(doc);
}
}
/**
* Checks if an iframe is empty (if about:blank is the shown page)
* @param {HTMLElement} ifr - The iframe DOM element
* @return {boolean}
* @access protected
*/
isIframeBlank(ifr) {
const bl = 'about:blank',
src = ifr.getAttribute('src').trim(),
href = ifr.contentWindow.location.href;
return href === bl && src !== bl && src;
}
/**
* Observes the onload event of an iframe and calls the success callback or
* the error callback if the iframe is inaccessible. If the event isn't
* fired within the specified {@link DOMIterator#iframesTimeout}, then it'll
* call the error callback too
* @param {HTMLElement} ifr - The iframe DOM element
* @param {DOMIterator~getIframeContentsSuccessCallback} successFn
* @param {function} errorFn
* @access protected
*/
observeIframeLoad(ifr, successFn, errorFn) {
let called = false,
tout = null;
const listener = () => {
if (called) {
return;
}
called = true;
clearTimeout(tout);
try {
if (!this.isIframeBlank(ifr)) {
ifr.removeEventListener('load', listener);
this.getIframeContents(ifr, successFn, errorFn);
}
} catch (e) {
// isIframeBlank maybe throws throws an error
errorFn();
}
};
ifr.addEventListener('load', listener);
tout = setTimeout(listener, this.iframesTimeout);
}
/**
* Callback when the iframe is ready
* @callback DOMIterator~onIframeReadySuccessCallback
* @param {HTMLDocument} contents - The contentDocument of the iframe
*/
/**
* Callback if the iframe can't be accessed
* @callback DOMIterator~onIframeReadyErrorCallback
*/
/**
* Calls the callback if the specified iframe is ready for DOM access
* @param {HTMLElement} ifr - The iframe DOM element
* @param {DOMIterator~onIframeReadySuccessCallback} successFn - Success
* callback
* @param {DOMIterator~onIframeReadyErrorCallback} errorFn - Error callback
* @see {@link http://stackoverflow.com/a/36155560/3894981} for
* background information
* @access protected
*/
onIframeReady(ifr, successFn, errorFn) {
try {
if (ifr.contentWindow.document.readyState === 'complete') {
if (this.isIframeBlank(ifr)) {
this.observeIframeLoad(ifr, successFn, errorFn);
} else {
this.getIframeContents(ifr, successFn, errorFn);
}
} else {
this.observeIframeLoad(ifr, successFn, errorFn);
}
} catch (e) {
// accessing document failed
errorFn();
}
}
/**
* Callback when all iframes are ready for DOM access
* @callback DOMIterator~waitForIframesDoneCallback
*/
/**
* Iterates over all iframes and calls the done callback when all of them
* are ready for DOM access (including nested ones)
* @param {HTMLElement} ctx - The context DOM element
* @param {DOMIterator~waitForIframesDoneCallback} done - Done callback
*/
waitForIframes(ctx, done) {
let eachCalled = 0;
this.forEachIframe(ctx, () => true, ifr => {
eachCalled++;
this.waitForIframes(ifr.querySelector('html'), () => {
if (! --eachCalled) {
done();
}
});
}, handled => {
if (!handled) {
done();
}
});
}
/**
* Callback allowing to filter an iframe. Must return true when the element
* should remain, otherwise false
* @callback DOMIterator~forEachIframeFilterCallback
* @param {HTMLElement} iframe - The iframe DOM element
*/
/**
* Callback for each iframe content
* @callback DOMIterator~forEachIframeEachCallback
* @param {HTMLElement} content - The iframe document
*/
/**
* Callback if all iframes inside the context were handled
* @callback DOMIterator~forEachIframeEndCallback
* @param {number} handled - The number of handled iframes (those who
* wheren't filtered)
*/
/**
* Iterates over all iframes inside the specified context and calls the
* callbacks when they're ready. Filters iframes based on the instance
* exclusion selectors
* @param {HTMLElement} ctx - The context DOM element
* @param {DOMIterator~forEachIframeFilterCallback} filter - Filter callback
* @param {DOMIterator~forEachIframeEachCallback} each - Each callback
* @param {DOMIterator~forEachIframeEndCallback} [end] - End callback
* @access protected
*/
forEachIframe(ctx, filter, each, end = () => {}) {
let ifr = ctx.querySelectorAll('iframe'),
open = ifr.length,
handled = 0;
ifr = Array.prototype.slice.call(ifr);
const checkEnd = () => {
if (--open <= 0) {
end(handled);
}
};
if (!open) {
checkEnd();
}
ifr.forEach(ifr => {
if (DOMIterator.matches(ifr, this.exclude)) {
checkEnd();
} else {
this.onIframeReady(ifr, con => {
if (filter(ifr)) {
handled++;
each(con);
}
checkEnd();
}, checkEnd);
}
});
}
/**
* Creates a NodeIterator on the specified context
* @see {@link https://developer.mozilla.org/en/docs/Web/API/NodeIterator}
* @param {HTMLElement} ctx - The context DOM element
* @param {DOMIterator~whatToShow} whatToShow
* @param {DOMIterator~filterCb} filter
* @return {NodeIterator}
* @access protected
*/
createIterator(ctx, whatToShow, filter) {
return document.createNodeIterator(ctx, whatToShow, filter, false);
}
/**
* Creates an instance of DOMIterator in an iframe
* @param {HTMLDocument} contents - Iframe document
* @return {DOMIterator}
* @access protected
*/
createInstanceOnIframe(contents) {
return new DOMIterator(contents.querySelector('html'), this.iframes);
}
/**
* Checks if an iframe occurs between two nodes, more specifically if an
* iframe occurs before the specified node and after the specified prevNode
* @param {HTMLElement} node - The node that should occur after the iframe
* @param {HTMLElement} prevNode - The node that should occur before the
* iframe
* @param {HTMLElement} ifr - The iframe to check against
* @return {boolean}
* @access protected
*/
compareNodeIframe(node, prevNode, ifr) {
const compCurr = node.compareDocumentPosition(ifr),
prev = Node.DOCUMENT_POSITION_PRECEDING;
if (compCurr & prev) {
if (prevNode !== null) {
const compPrev = prevNode.compareDocumentPosition(ifr),
after = Node.DOCUMENT_POSITION_FOLLOWING;
if (compPrev & after) {
return true;
}
} else {
return true;
}
}
return false;
}
/**
* @typedef {DOMIterator~getIteratorNodeReturn}
* @type {object.<string>}
* @property {HTMLElement} prevNode - The previous node or null if there is
* no
* @property {HTMLElement} node - The current node
*/
/**
* Returns the previous and current node of the specified iterator
* @param {NodeIterator} itr - The iterator
* @return {DOMIterator~getIteratorNodeReturn}
* @access protected
*/
getIteratorNode(itr) {
const prevNode = itr.previousNode();
let node;
if (prevNode === null) {
node = itr.nextNode();
} else {
node = itr.nextNode() && itr.nextNode();
}
return {
prevNode,
node
};
}
/**
* An array containing objects. The object key "val" contains an iframe
* DOM element. The object key "handled" contains a boolean indicating if
* the iframe was handled already.
* It wouldn't be enough to save all open or all already handled iframes.
* The information of open iframes is necessary because they may occur after
* all other text nodes (and compareNodeIframe would never be true). The
* information of already handled iframes is necessary as otherwise they may
* be handled multiple times
* @typedef DOMIterator~checkIframeFilterIfr
* @type {object[]}
*/
/**
* Checks if an iframe wasn't handled already and if so, calls
* {@link DOMIterator#compareNodeIframe} to check if it should be handled.
* Information wheter an iframe was or wasn't handled is given within the
* <code>ifr</code> dictionary
* @param {HTMLElement} node - The node that should occur after the iframe
* @param {HTMLElement} prevNode - The node that should occur before the
* iframe
* @param {HTMLElement} currIfr - The iframe to check
* @param {DOMIterator~checkIframeFilterIfr} ifr - The iframe dictionary.
* Will be manipulated (by reference)
* @return {boolean} Returns true when it should be handled, otherwise false
* @access protected
*/
checkIframeFilter(node, prevNode, currIfr, ifr) {
let key = false,
// false === doesn't exist
handled = false;
ifr.forEach((ifrDict, i) => {
if (ifrDict.val === currIfr) {
key = i;
handled = ifrDict.handled;
}
});
if (this.compareNodeIframe(node, prevNode, currIfr)) {
if (key === false && !handled) {
ifr.push({
val: currIfr,
handled: true
});
} else if (key !== false && !handled) {
ifr[key].handled = true;
}
return true;
}
if (key === false) {
ifr.push({
val: currIfr,
handled: false
});
}
return false;
}
/**
* Creates an iterator on all open iframes in the specified array and calls
* the end callback when finished
* @param {DOMIterator~checkIframeFilterIfr} ifr
* @param {DOMIterator~whatToShow} whatToShow
* @param {DOMIterator~forEachNodeCallback} eCb - Each callback
* @param {DOMIterator~filterCb} fCb
* @access protected
*/
handleOpenIframes(ifr, whatToShow, eCb, fCb) {
ifr.forEach(ifrDict => {
if (!ifrDict.handled) {
this.getIframeContents(ifrDict.val, con => {
this.createInstanceOnIframe(con).forEachNode(whatToShow, eCb, fCb);
});
}
});
}
/**
* Iterates through all nodes in the specified context and handles iframe
* nodes at the correct position
* @param {DOMIterator~whatToShow} whatToShow
* @param {HTMLElement} ctx - The context
* @param {DOMIterator~forEachNodeCallback} eachCb - Each callback
* @param {DOMIterator~filterCb} filterCb - Filter callback
* @param {DOMIterator~forEachNodeEndCallback} doneCb - End callback
* @access protected
*/
iterateThroughNodes(whatToShow, ctx, eachCb, filterCb, doneCb) {
const itr = this.createIterator(ctx, whatToShow, filterCb);
let ifr = [],
elements = [],
node,
prevNode,
retrieveNodes = () => {
({
prevNode,
node
} = this.getIteratorNode(itr));
return node;
};
while (retrieveNodes()) {
if (this.iframes) {
this.forEachIframe(ctx, currIfr => {
// note that ifr will be manipulated here
return this.checkIframeFilter(node, prevNode, currIfr, ifr);
}, con => {
this.createInstanceOnIframe(con).forEachNode(whatToShow, ifrNode => elements.push(ifrNode), filterCb);
});
} // it's faster to call the each callback in an array loop
// than in this while loop
elements.push(node);
}
elements.forEach(node => {
eachCb(node);
});
if (this.iframes) {
this.handleOpenIframes(ifr, whatToShow, eachCb, filterCb);
}
doneCb();
}
/**
* Callback for each node
* @callback DOMIterator~forEachNodeCallback
* @param {HTMLElement} node - The DOM text node element
*/
/**
* Callback if all contexts were handled
* @callback DOMIterator~forEachNodeEndCallback
*/
/**
* Iterates over all contexts and initializes
* {@link DOMIterator#iterateThroughNodes iterateThroughNodes} on them
* @param {DOMIterator~whatToShow} whatToShow
* @param {DOMIterator~forEachNodeCallback} each - Each callback
* @param {DOMIterator~filterCb} filter - Filter callback
* @param {DOMIterator~forEachNodeEndCallback} done - End callback
* @access public
*/
forEachNode(whatToShow, each, filter, done = () => {}) {
const contexts = this.getContexts();
let open = contexts.length;
if (!open) {
done();
}
contexts.forEach(ctx => {
const ready = () => {
this.iterateThroughNodes(whatToShow, ctx, each, filter, () => {
if (--open <= 0) {
// call end all contexts were handled
done();
}
});
}; // wait for iframes to avoid recursive calls, otherwise this would
// perhaps reach the recursive function call limit with many nodes
if (this.iframes) {
this.waitForIframes(ctx, ready);
} else {
ready();
}
});
}
/**
* Callback to filter nodes. Can return e.g. NodeFilter.FILTER_ACCEPT or
* NodeFilter.FILTER_REJECT
* @see {@link http://tinyurl.com/zdczmm2}
* @callback DOMIterator~filterCb
* @param {HTMLElement} node - The node to filter
*/
/**
* @typedef DOMIterator~whatToShow
* @see {@link http://tinyurl.com/zfqqkx2}
* @type {number}
*/
}
/**
* Marks search terms in DOM elements
* @example
* new Mark(document.querySelector(".context")).mark("lorem ipsum");
* @example
* new Mark(document.querySelector(".context")).markRegExp(/lorem/gmi);
*/
class Mark$1 {
// eslint-disable-line no-unused-vars
/**
* @param {HTMLElement|HTMLElement[]|NodeList|string} ctx - The context DOM
* element, an array of DOM elements, a NodeList or a selector
*/
constructor(ctx) {
/**
* The context of the instance. Either a DOM element, an array of DOM
* elements, a NodeList or a selector
* @type {HTMLElement|HTMLElement[]|NodeList|string}
* @access protected
*/
this.ctx = ctx;
/**
* Specifies if the current browser is a IE (necessary for the node
* normalization bug workaround). See {@link Mark#unwrapMatches}
* @type {boolean}
* @access protected
*/
this.ie = false;
const ua = window.navigator.userAgent;
if (ua.indexOf('MSIE') > -1 || ua.indexOf('Trident') > -1) {
this.ie = true;
}
}
/**
* Options defined by the user. They will be initialized from one of the
* public methods. See {@link Mark#mark}, {@link Mark#markRegExp},
* {@link Mark#markRanges} and {@link Mark#unmark} for option properties.
* @type {object}
* @param {object} [val] - An object that will be merged with defaults
* @access protected
*/
set opt(val) {
this._opt = Object.assign({}, {
'element': '',
'className': '',
'exclude': [],
'iframes': false,
'iframesTimeout': 5000,
'separateWordSearch': true,
'diacritics': true,
'synonyms': {},
'accuracy': 'partially',
'acrossElements': false,
'caseSensitive': false,
'ignoreJoiners': false,
'ignoreGroups': 0,
'ignorePunctuation': [],
'wildcards': 'disabled',
'each': () => {},
'noMatch': () => {},
'filter': () => true,
'done': () => {},
'debug': false,
'log': window.console
}, val);
}
get opt() {
return this._opt;
}
/**
* An instance of DOMIterator
* @type {DOMIterator}
* @access protected
*/
get iterator() {
// always return new instance in case there were option changes
return new DOMIterator(this.ctx, this.opt.iframes, this.opt.exclude, this.opt.iframesTimeout);
}
/**
* Logs a message if log is enabled
* @param {string} msg - The message to log
* @param {string} [level="debug"] - The log level, e.g. <code>warn</code>
* <code>error</code>, <code>debug</code>
* @access protected
*/
log(msg, level = 'debug') {
const log = this.opt.log;
if (!this.opt.debug) {
return;
}
if (typeof log === 'object' && typeof log[level] === 'function') {
log[level](`mark.js: ${msg}`);
}
}
/**
* Escapes a string for usage within a regular expression
* @param {string} str - The string to escape
* @return {string}
* @access protected
*/
escapeStr(str) {
// eslint-disable-next-line no-useless-escape
return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
}
/**
* Creates a regular expression string to match the specified search
* term including synonyms, diacritics and accuracy if defined
* @param {string} str - The search term to be used
* @return {string}
* @access protected
*/
createRegExp(str) {
if (this.opt.wildcards !== 'disabled') {
str = this.setupWildcardsRegExp(str);
}
str = this.escapeStr(str);
if (Object.keys(this.opt.synonyms).length) {
str = this.createSynonymsRegExp(str);
}
if (this.opt.ignoreJoiners || this.opt.ignorePunctuation.length) {
str = this.setupIgnoreJoinersRegExp(str);
}
if (this.opt.diacritics) {
str = this.createDiacriticsRegExp(str);
}
str = this.createMergedBlanksRegExp(str);
if (this.opt.ignoreJoiners || this.opt.ignorePunctuation.length) {
str = this.createJoinersRegExp(str);
}
if (this.opt.wildcards !== 'disabled') {
str = this.createWildcardsRegExp(str);
}
str = this.createAccuracyRegExp(str);
return str;
}
/**
* Creates a regular expression string to match the defined synonyms
* @param {string} str - The search term to be used
* @return {string}
* @access protected
*/
createSynonymsRegExp(str) {
const syn = this.opt.synonyms,
sens = this.opt.caseSensitive ? '' : 'i',
// add replacement character placeholder before and after the
// synonym group
joinerPlaceholder = this.opt.ignoreJoiners || this.opt.ignorePunctuation.length ? '\u0000' : '';
for (let index in syn) {
if (syn.hasOwnProperty(index)) {
const value = syn[index],
k1 = this.opt.wildcards !== 'disabled' ? this.setupWildcardsRegExp(index) : this.escapeStr(index),
k2 = this.opt.wildcards !== 'disabled' ? this.setupWildcardsRegExp(value) : this.escapeStr(value);
if (k1 !== '' && k2 !== '') {
str = str.replace(new RegExp(`(${this.escapeStr(k1)}|${this.escapeStr(k2)})`, `gm${sens}`), joinerPlaceholder + `(${this.processSynomyms(k1)}|` + `${this.processSynomyms(k2)})` + joinerPlaceholder);
}
}
}
return str;
}
/**
* Setup synonyms to work with ignoreJoiners and or ignorePunctuation
* @param {string} str - synonym key or value to process
* @return {string} - processed synonym string
*/
processSynomyms(str) {
if (this.opt.ignoreJoiners || this.opt.ignorePunctuation.length) {
str = this.setupIgnoreJoinersRegExp(str);
}
return str;
}
/**
* Sets up the regular expression string to allow later insertion of
* wildcard regular expression matches
* @param {string} str - The search term to be used
* @return {string}
* @access protected
*/
setupWildcardsRegExp(str) {
// replace single character wildcard with unicode 0001
str = str.replace(/(?:\\)*\?/g, val => {
return val.charAt(0) === '\\' ? '?' : '\u0001';
}); // replace multiple character wildcard with unicode 0002
return str.replace(/(?:\\)*\*/g, val => {
return val.charAt(0) === '\\' ? '*' : '\u0002';
});
}
/**
* Sets up the regular expression string to allow later insertion of
* wildcard regular expression matches
* @param {string} str - The search term to be used
* @return {string}
* @access protected
*/
createWildcardsRegExp(str) {
// default to "enable" (i.e. to not include spaces)
// "withSpaces" uses `[\\S\\s]` instead of `.` because the latter
// does not match new line characters
let spaces = this.opt.wildcards === 'withSpaces';
return str // replace unicode 0001 with a RegExp class to match any single
// character, or any single non-whitespace character depending
// on the setting
.replace(/\u0001/g, spaces ? '[\\S\\s]?' : '\\S?') // replace unicode 0002 with a RegExp class to match zero or
// more characters, or zero or more non-whitespace characters
// depending on the setting
.replace(/\u0002/g, spaces ? '[\\S\\s]*?' : '\\S*');
}
/**
* Sets up the regular expression string to allow later insertion of
* designated characters (soft hyphens & zero width characters)
* @param {string} str - The search term to be used
* @return {string}
* @access protected
*/
setupIgnoreJoinersRegExp(str) {
// adding a "null" unicode character as it will not be modified by the
// other "create" regular expression functions
return str.replace(/[^(|)\\]/g, (val, indx, original) => {
// don't add a null after an opening "(", around a "|" or before
// a closing "(", or between an escapement (e.g. \+)
let nextChar = original.charAt(indx + 1);
if (/[(|)\\]/.test(nextChar) || nextChar === '') {
return val;
} else {
return val + '\u0000';
}
});
}
/**
* Creates a regular expression string to allow ignoring of designated
* characters (soft hyphens, zero width characters & punctuation) based on
* the specified option values of <code>ignorePunctuation</code> and
* <code>ignoreJoiners</code>
* @param {string} str - The search term to be used
* @return {string}
* @access protected
*/
createJoinersRegExp(str) {
let joiner = [];
const ignorePunctuation = this.opt.ignorePunctuation;
if (Array.isArray(ignorePunctuation) && ignorePunctuation.length) {
joiner.push(this.escapeStr(ignorePunctuation.join('')));
}
if (this.opt.ignoreJoiners) {
// u+00ad = soft hyphen
// u+200b = zero-width space
// u+200c = zero-width non-joiner
// u+200d = zero-width joiner
joiner.push('\\u00ad\\u200b\\u200c\\u200d');
}
return joiner.length ? str.split(/\u0000+/).join(`[${joiner.join('')}]*`) : str;
}
/**
* Creates a regular expression string to match diacritics
* @param {string} str - The search term to be used
* @return {string}
* @access protected
*/
createDiacriticsRegExp(str) {
const sens = this.opt.caseSensitive ? '' : 'i',
dct = this.opt.caseSensitive ? ['aàáảãạăằắẳẵặâầấẩẫậäåāą', 'AÀÁẢÃẠĂẰẮẲẴẶÂẦẤẨẪẬÄÅĀĄ', 'cçćč', 'CÇĆČ', 'dđď', 'DĐĎ', 'eèéẻẽẹêềếểễệëěēę', 'EÈÉẺẼẸÊỀẾỂỄỆËĚĒĘ', 'iìíỉĩịîïī', 'IÌÍỈĨỊÎÏĪ', 'lł', 'LŁ', 'nñňń', 'NÑŇŃ', 'oòóỏõọôồốổỗộơởỡớờợöøō', 'OÒÓỎÕỌÔỒỐỔỖỘƠỞỠỚỜỢÖØŌ', 'rř', 'RŘ', 'sšśșş', 'SŠŚȘŞ', 'tťțţ', 'TŤȚŢ', 'uùúủũụưừứửữựûüůū', 'UÙÚỦŨỤƯỪỨỬỮỰÛÜŮŪ', 'yýỳỷỹỵÿ', 'YÝỲỶỸỴŸ', 'zžżź', 'ZŽŻŹ'] : ['aàáảãạăằắẳẵặâầấẩẫậäåāąAÀÁẢÃẠĂẰẮẲẴẶÂẦẤẨẪẬÄÅĀĄ', 'cçćčCÇĆČ', 'dđďDĐĎ', 'eèéẻẽẹêềếểễệëěēęEÈÉẺẼẸÊỀẾỂỄỆËĚĒĘ', 'iìíỉĩịîïīIÌÍỈĨỊÎÏĪ', 'lłLŁ', 'nñňńNÑŇŃ', 'oòóỏõọôồốổỗộơởỡớờợöøōOÒÓỎÕỌÔỒỐỔỖỘƠỞỠỚỜỢÖØŌ', 'rřRŘ', 'sšśșşSŠŚȘŞ', 'tťțţTŤȚŢ', 'uùúủũụưừứửữựûüůūUÙÚỦŨỤƯỪỨỬỮỰÛÜŮŪ', 'yýỳỷỹỵÿYÝỲỶỸỴŸ', 'zžżźZŽŻŹ'];
let handled = [];
str.split('').forEach(ch => {
dct.every(dct => {
// Check if the character is inside a diacritics list
if (dct.indexOf(ch) !== -1) {
// Check if the related diacritics list was not
// handled yet
if (handled.indexOf(dct) > -1) {
return false;
} // Make sure that the character OR any other
// character in the diacritics list will be matched
str = str.replace(new RegExp(`[${dct}]`, `gm${sens}`), `[${dct}]`);
handled.push(dct);
}
return true;
});
});
return str;
}
/**
* Creates a regular expression string that merges whitespace characters
* including subsequent ones into a single pattern, one or multiple
* whitespaces
* @param {string} str - The search term to be used
* @return {string}
* @access protected
*/
createMergedBlanksRegExp(str) {
return str.replace(/[\s]+/gmi, '[\\s]+');
}
/**
* Creates a regular expression string to match the specified string with
* the defined accuracy. As in the regular expression of "exactly" can be
* a group containing a blank at the beginning, all regular expressions will
* be created with two groups. The first group can be ignored (may contain
* the said blank), the second contains the actual match
* @param {string} str - The searm term to be used
* @return {str}
* @access protected
*/
createAccuracyRegExp(str) {
const chars = '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~¡¿';
let acc = this.opt.accuracy,
val = typeof acc === 'string' ? acc : acc.value,
ls = typeof acc === 'string' ? [] : acc.limiters,
lsJoin = '';
ls.forEach(limiter => {
lsJoin += `|${this.escapeStr(limiter)}`;
});
switch (val) {
case 'partially':
default:
return `()(${str})`;
case 'complementary':
lsJoin = '\\s' + (lsJoin ? lsJoin : this.escapeStr(chars));
return `()([^${lsJoin}]*${str}[^${lsJoin}]*)`;
case 'exactly':
return `(^|\\s${lsJoin})(${str})(?=$|\\s${lsJoin})`;
}
}
/**
* @typedef Mark~separatedKeywords
* @type {object.<string>}
* @property {array.<string>} keywords - The list of keywords
* @property {number} length - The length
*/
/**
* Returns a list of keywords dependent on whether separate word search
* was defined. Also it filters empty keywords
* @param {array} sv - The array of keywords
* @return {Mark~separatedKeywords}
* @access protected
*/
getSeparatedKeywords(sv) {
let stack = [];
sv.forEach(kw => {
if (!this.opt.separateWordSearch) {
if (kw.trim() && stack.indexOf(kw) === -1) {
stack.push(kw);
}
} else {
kw.split(' ').forEach(kwSplitted => {
if (kwSplitted.trim() && stack.indexOf(kwSplitted) === -1) {
stack.push(kwSplitted);
}
});
}
});
return {
// sort because of https://git.io/v6USg
'keywords': stack.sort((a, b) => {
return b.length - a.length;
}),
'length': stack.length
};
}
/**
* Check if a value is a number
* @param {number|string} value - the value to check;
* numeric strings allowed
* @return {boolean}
* @access protected
*/
isNumeric(value) {
// http://stackoverflow.com/a/16655847/145346
// eslint-disable-next-line eqeqeq
return Number(parseFloat(value)) == value;
}
/**
* @typedef Mark~rangeObject
* @type {object}
* @property {number} start - The start position within the composite value
* @property {number} length - The length of the string to mark within the
* composite value.
*/
/**
* @typedef Mark~setOfRanges
* @type {object[]}
* @property {Mark~rangeObject}
*/
/**
* Returns a processed list of integer offset indexes that do not overlap
* each other, and remove any string values or additional elements
* @param {Mark~setOfRanges} array - unprocessed raw array
* @return {Mark~setOfRanges} - processed array with any invalid entries
* removed
* @throws Will throw an error if an array of objects is not passed
* @access protected
*/
checkRanges(array) {
// start and length indexes are included in an array of objects
// [{start: 0, length: 1}, {start: 4, length: 5}]
// quick validity check of the first entry only
if (!Array.isArray(array) || Object.prototype.toString.call(array[0]) !== '[object Object]') {
this.log('markRanges() will only accept an array of objects');
this.opt.noMatch(array);
return [];
}
const stack = [];
let last = 0;
array // acending sort to ensure there is no overlap in start & end
// offsets
.sort((a, b) => {
return a.start - b.start;
}).forEach(item => {
let {
start,
end,
valid
} = this.callNoMatchOnInvalidRanges(item, last);
if (valid) {
// preserve item in case there are extra key:values within
item.start = start;
item.length = end - start;
stack.push(item);
last = end;
}
});
return stack;
}
/**
* @typedef Mark~validObject
* @type {object}
* @property {number} start - The start position within the composite value
* @property {number} end - The calculated end position within the composite
* value.
* @property {boolean} valid - boolean value indicating that the start and
* calculated end range is valid
*/
/**
* Initial validation of ranges for markRanges. Preliminary checks are done
* to ensure the start and length values exist and are not zero or non-
* numeric
* @param {Mark~rangeObject} range - the current range object
* @param {number} last - last index of range
* @return {Mark~validObject}
* @access protected
*/
callNoMatchOnInvalidRanges(range, last) {
let start,
end,
valid = false;
if (range && typeof range.start !== 'undefined') {
start = parseInt(range.start, 10);
end = start + parseInt(range.length, 10); // ignore overlapping values & non-numeric entries
if (this.isNumeric(range.start) && this.isNumeric(range.length) && end - last > 0 && end - start > 0) {
valid = true;
} else {
this.log('Ignoring invalid or overlapping range: ' + `${JSON.stringify(range)}`);
this.opt.noMatch(range);
}
} else {
this.log(`Ignoring invalid range: ${JSON.stringify(range)}`);
this.opt.noMatch(range);
}
return {
start: start,
end: end,
valid: valid
};
}
/**
* Check valid range for markRanges. Check ranges with access to the context
* string. Range values are double checked, lengths that extend the mark
* beyond the string length are limitied and ranges containing only
* whitespace are ignored
* @param {Mark~rangeObject} range - the current range object
* @param {number} originalLength - original length of the context string
* @param {string} string - current content string
* @return {Mark~validObject}
* @access protected
*/
checkWhitespaceRanges(range, originalLength, string) {
let end,
valid = true,
// the max value changes after the DOM is manipulated
max = string.length,
// adjust offset to account for wrapped text node
offset = originalLength - max,
start = parseInt(range.start, 10) - offset; // make sure to stop at max
start = start > max ? max : start;
end = start + parseInt(range.length, 10);
if (end > max) {
end = max;
this.log(`End range automatically set to the max value of ${max}`);
}
if (start < 0 || end - start < 0 || start > max || end > max) {
valid = false;
this.log(`Invalid range: ${JSON.stringify(range)}`);
this.opt.noMatch(range);
} else if (string.substring(start, end).replace(/\s+/g, '') === '') {
valid = false; // whitespace only; even if wrapped it is not visible
this.log('Skipping whitespace only range: ' + JSON.stringify(range));
this.opt.noMatch(range);
}
return {
start: start,
end: end,
valid: valid
};
}
/**
* @typedef Mark~getTextNodesDict
* @type {object.<string>}
* @property {string} value - The composite value of all text nodes
* @property {object[]} nodes - An array of objects
* @property {number} nodes.start - The start position within the composite
* value
* @property {number} nodes.end - The end position within the composite
* value
* @property {HTMLElement} nodes.node - The DOM text node element
*/
/**
* Callback
* @callback Mark~getTextNodesCallback
* @param {Mark~getTextNodesDict}
*/
/**
* Calls the callback with an object containing all text nodes (including
* iframe text nodes) with start and end positions and the composite value
* of them (string)
* @param {Mark~getTextNodesCallback} cb - Callback
* @access protected
*/
getTextNodes(cb) {
let val = '',
nodes = [];
this.iterator.forEachNode(NodeFilter.SHOW_TEXT, node => {
nodes.push({
start: val.length,
end: (val += node.textContent).length,
node
});
}, node => {
if (this.matchesExclude(node.parentNode)) {
return NodeFilter.FILTER_REJECT;
} else {
return NodeFilter.FILTER_ACCEPT;
}
}, () => {
cb({
value: val,
nodes: nodes
});
});
}
/**
* Checks if an element matches any of the specified exclude selectors. Also
* it checks for elements in which no marks should be performed (e.g.
* script and style tags) and optionally already marked elements
* @param {HTMLElement} el - The element to check
* @return {boolean}
* @access protected
*/
matchesExclude(el) {
return DOMIterator.matches(el, this.opt.exclude.concat([// ignores the elements itself, not their childrens (selector *)
'script', 'style', 'title', 'head', 'html']));
}
/**
* Wraps the instance element and class around matches that fit the start
* and end positions within the node
* @param {HTMLElement} node - The DOM text node
* @param {number} start - The position where to start wrapping
* @param {number} end - The position where to end wrapping
* @return {HTMLElement} Returns the splitted text node that will appear
* after the wrapped text node
* @access protected
*/
wrapRangeInTextNode(node, start, end) {
const hEl = !this.opt.element ? 'mark' : this.opt.element,
startNode = node.splitText(start),
ret = startNode.splitText(end - start);
let repl = document.createElement(hEl);
repl.setAttribute('data-markjs', 'true');
if (this.opt.className) {
repl.setAttribute('class', this.opt.className);
}
repl.textContent = startNode.textContent;
startNode.parentNode.replaceChild(repl, startNode);
return ret;
}
/**
* @typedef Mark~wrapRangeInMappedTextNodeDict
* @type {object.<string>}
* @property {string} value - The composite value of all text nodes
* @property {object[]} nodes - An array of objects
* @property {number} nodes.start - The start position within the composite
* value
* @property {number} nodes.end - The end position within the composite
* value
* @property {HTMLElement} nodes.node - The DOM text node element
*/
/**
* Each callback
* @callback Mark~wrapMatchesEachCallback
* @param {HTMLElement} node - The wrapped DOM element
* @param {number} lastIndex - The last matching position within the
* composite value of text nodes
*/
/**
* Filter callback
* @callback Mark~wrapMatchesFilterCallback
* @param {HTMLElement} node - The matching text node DOM element
*/
/**
* Determines matches by start and end positions using the text node
* dictionary even across text nodes and calls
* {@link Mark#wrapRangeInTextNode} to wrap them
* @param {Mark~wrapRangeInMappedTextNodeDict} dict - The dictionary
* @param {number} start - The start position of the match
* @param {number} end - The end position of the match
* @param {Mark~wrapMatchesFilterCallback} filterCb - Filter callback
* @param {Mark~wrapMatchesEachCallback} eachCb - Each callback
* @access protected
*/
wrapRangeInMappedTextNode(dict, start, end, filterCb, eachCb) {
// iterate over all text nodes to find the one matching the positions
dict.nodes.every((n, i) => {
const sibl = dict.nodes[i + 1];
if (typeof sibl === 'undefined' || sibl.start > start) {
if (!filterCb(n.node)) {
return false;
} // map range from dict.value to text node
const s = start - n.start,
e = (end > n.end ? n.end : end) - n.start,
startStr = dict.value.substr(0, n.start),
endStr = dict.value.substr(e + n.start);
n.node = this.wrapRangeInTextNode(n.node, s, e); // recalculate positions to also find subsequent matches in the
// same text node. Necessary as the text node in dict now only
// contains the splitted part after the wrapped one
dict.value = startStr + endStr;
dict.nodes.forEach((k, j) => {
if (j >= i) {
if (dict.nodes[j].start > 0 && j !== i) {
dict.nodes[j].start -= e;
}
dict.nodes[j].end -= e;
}
});
end -= e;
eachCb(n.node.previousSibling, n.start);
if (end > n.end) {
start = n.end;
} else {
return false;
}
}
return true;
});
}
/**
* Filter callback before each wrapping
* @callback Mark~wrapMatchesFilterCallback
* @param {string} match - The matching string
* @param {HTMLElement} node - The text node where the match occurs
*/
/**
* Callback for each wrapped element
* @callback Mark~wrapMatchesEachCallback
* @param {HTMLElement} element - The marked DOM element
*/
/**
* Callback on end
* @callback Mark~wrapMatchesEndCallback
*/
/**
* Wraps the instance element and class around matches within single HTML
* elements in all contexts
* @param {RegExp} regex - The regular expression to be searched for
* @param {number} ignoreGroups - A number indicating the amount of RegExp
* matching groups to ignore
* @param {Mark~wrapMatchesFilterCallback} filterCb
* @param {Mark~wrapMatchesEachCallback} eachCb
* @param {Mark~wrapMatchesEndCallback} endCb
* @access protected
*/
wrapMatches(regex, ignoreGroups, filterCb, eachCb, endCb) {
const matchIdx = ignoreGroups === 0 ? 0 : ignoreGroups + 1;
this.getTextNodes(dict => {
dict.nodes.forEach(node => {
node = node.node;
let match;
while ((match = regex.exec(node.textContent)) !== null && match[matchIdx] !== '') {
if (!filterCb(match[matchIdx], node)) {
continue;
}
let pos = match.index;
if (matchIdx !== 0) {
for (let i = 1; i < matchIdx; i++) {
pos += match[i].length;
}
}
node = this.wrapRangeInTextNode(node, pos, pos + match[matchIdx].length);
eachCb(node.previousSibling); // reset index of last match as the node changed and the
// index isn't valid anymore http://tinyurl.com/htsudjd
regex.lastIndex = 0;
}
});
endCb();
});
}
/**
* Callback for each wrapped element
* @callback Mark~wrapMatchesAcrossElementsEachCallback
* @param {HTMLElement} element - The marked DOM element
*/
/**
* Filter callback before each wrapping
* @callback Mark~wrapMatchesAcrossElementsFilterCallback
* @param {string} match - The matching string
* @param {HTMLElement} node - The text node where the match occurs
*/
/**
* Callback on end
* @callback Mark~wrapMatchesAcrossElementsEndCallback
*/
/**
* Wraps the instance element and class around matches across all HTML
* elements in all contexts
* @param {RegExp} regex - The regular expression to be searched for
* @param {number} ignoreGroups - A number indicating the amount of RegExp
* matching groups to ignore
* @param {Mark~wrapMatchesAcrossElementsFilterCallback} filterCb
* @param {Mark~wrapMatchesAcrossElementsEachCallback} eachCb
* @param {Mark~wrapMatchesAcrossElementsEndCallback} endCb
* @access protected
*/
wrapMatchesAcrossElements(regex, ignoreGroups, filterCb, eachCb, endCb) {
const matchIdx = ignoreGroups === 0 ? 0 : ignoreGroups + 1;
this.getTextNodes(dict => {
let match;
while ((match = regex.exec(dict.value)) !== null && match[matchIdx] !== '') {
// calculate range inside dict.value
let start = match.index;
if (matchIdx !== 0) {
for (let i = 1; i < matchIdx; i++) {
start += match[i].length;
}
}
const end = start + match[matchIdx].length; // note that dict will be updated automatically, as it'll change
// in the wrapping process, due to the fact that text
// nodes will be splitted
this.wrapRangeInMappedTextNode(dict, start, end, node => {
return filterCb(match[matchIdx], node);
}, (node, lastIndex) => {
regex.lastIndex = lastIndex;
eachCb(node);
});
}
endCb();
});
}
/**
* Callback for each wrapped element
* @callback Mark~wrapRangeFromIndexEachCallback
* @param {HTMLElement} element - The marked DOM element
* @param {Mark~rangeObject} range - the current range object; provided
* start and length values will be numeric integers modified from the
* provided original ranges.
*/
/**
* Filter callback before each wrapping
* @callback Mark~wrapRangeFromIndexFilterCallback
* @param {HTMLElement} node - The text node which includes the range
* @param {Mark~rangeObject} range - the current range object
* @param {string} match - string extracted from the matching range
* @param {number} counter - A counter indicating the number of all marks
*/
/**
* Callback on end
* @callback Mark~wrapRangeFromIndexEndCallback
*/
/**
* Wraps the indicated ranges across all HTML elements in all contexts
* @param {Mark~setOfRanges} ranges
* @param {Mark~wrapRangeFromIndexFilterCallback} filterCb
* @param {Mark~wrapRangeFromIndexEachCallback} eachCb
* @param {Mark~wrapRangeFromIndexEndCallback} endCb
* @access protected
*/
wrapRangeFromIndex(ranges, filterCb, eachCb, endCb) {
this.getTextNodes(dict => {
const originalLength = dict.value.length;
ranges.forEach((range, counter) => {
let {
start,
end,
valid
} = this.checkWhitespaceRanges(range, originalLength, dict.value);
if (valid) {
this.wrapRangeInMappedTextNode(dict, start, end, node => {
return filterCb(node, range, dict.value.substring(start, end), counter);
}, node => {
eachCb(node, range);
});
}
});
endCb();
});
}
/**
* Unwraps the specified DOM node with its content (text nodes or HTML)
* without destroying possibly present events (using innerHTML) and
* normalizes the parent at the end (merge splitted text nodes)
* @param {HTMLElement} node - The DOM node to unwrap
* @access protected
*/
unwrapMatches(node) {
const parent = node.parentNode;
let docFrag = document.createDocumentFragment();
while (node.firstChild) {
docFrag.appendChild(node.removeChild(node.firstChild));
}
parent.replaceChild(docFrag, node);
if (!this.ie) {
// use browser's normalize method
parent.normalize();
} else {
// custom method (needs more time)
this.normalizeTextNode(parent);
}
}
/**
* Normalizes text nodes. It's a workaround for the native normalize method
* that has a bug in IE (see attached link). Should only be used in IE
* browsers as it's slower than the native method.
* @see {@link http://tinyurl.com/z5asa8c}
* @param {HTMLElement} node - The DOM node to normalize
* @access protected
*/
normalizeTextNode(node) {
if (!node) {
return;
}
if (node.nodeType === 3) {
while (node.nextSibling && node.nextSibling.nodeType === 3) {
node.nodeValue += node.nextSibling.nodeValue;
node.parentNode.removeChild(node.nextSibling);
}
} else {
this.normalizeTextNode(node.firstChild);
}
this.normalizeTextNode(node.nextSibling);
}
/**
* Callback when finished
* @callback Mark~commonDoneCallback
* @param {number} totalMatches - The number of marked elements
*/
/**
* @typedef Mark~commonOptions
* @type {object.<string>}
* @property {string} [element="mark"] - HTML element tag name
* @property {string} [className] - An optional class name
* @property {string[]} [exclude] - An array with exclusion selectors.
* Elements matching those selectors will be ignored
* @property {boolean} [iframes=false] - Whether to search inside iframes
* @property {Mark~commonDoneCallback} [done]
* @property {boolean} [debug=false] - Wheter to log messages
* @property {object} [log=window.console] - Where to log messages (only if
* debug is true)
*/
/**
* Callback for each marked element
* @callback Mark~markRegExpEachCallback
* @param {HTMLElement} element - The marked DOM element
*/
/**
* Callback if there were no matches
* @callback Mark~markRegExpNoMatchCallback
* @param {RegExp} regexp - The regular expression
*/
/**
* Callback to filter matches
* @callback Mark~markRegExpFilterCallback
* @param {HTMLElement} textNode - The text node which includes the match
* @param {string} match - The matching string for the RegExp
* @param {number} counter - A counter indicating the number of all marks
*/
/**
* These options also include the common options from
* {@link Mark~commonOptions}
* @typedef Mark~markRegExpOptions
* @type {object.<string>}
* @property {Mark~markRegExpEachCallback} [each]
* @property {Mark~markRegExpNoMatchCallback} [noMatch]
* @property {Mark~markRegExpFilterCallback} [filter]
*/
/**
* Marks a custom regular expression
* @param {RegExp} regexp - The regular expression
* @param {Mark~markRegExpOptions} [opt] - Optional options object
* @access public
*/
markRegExp(regexp, opt) {
this.opt = opt;
this.log(`Searching with expression "${regexp}"`);
let totalMatches = 0,
fn = 'wrapMatches';
const eachCb = element => {
totalMatches++;
this.opt.each(element);
};
if (this.opt.acrossElements) {
fn = 'wrapMatchesAcrossElements';
}
this[fn](regexp, this.opt.ignoreGroups, (match, node) => {
return this.opt.filter(node, match, totalMatches);
}, eachCb, () => {
if (totalMatches === 0) {
this.opt.noMatch(regexp);
}
this.opt.done(totalMatches);
});
}
/**
* Callback for each marked element
* @callback Mark~markEachCallback
* @param {HTMLElement} element - The marked DOM element
*/
/**
* Callback if there were no matches
* @callback Mark~markNoMatchCallback
* @param {RegExp} term - The search term that was not found
*/
/**
* Callback to filter matches
* @callback Mark~markFilterCallback
* @param {HTMLElement} textNode - The text node which includes the match
* @param {string} match - The matching term
* @param {number} totalCounter - A counter indicating the number of all
* marks
* @param {number} termCounter - A counter indicating the number of marks
* for the specific match
*/
/**
* @typedef Mark~markAccuracyObject
* @type {object.<string>}
* @property {string} value - A accuracy string value
* @property {string[]} limiters - A custom array of limiters. For example
* <code>["-", ","]</code>
*/
/**
* @typedef Mark~markAccuracySetting
* @type {string}
* @property {"partially"|"complementary"|"exactly"|Mark~markAccuracyObject}
* [accuracy="partially"] - Either one of the following string values:
* <ul>
* <li><i>partially</i>: When searching for "lor" only "lor" inside
* "lorem" will be marked</li>
* <li><i>complementary</i>: When searching for "lor" the whole word
* "lorem" will be marked</li>
* <li><i>exactly</i>: When searching for "lor" only those exact words
* will be marked. In this example nothing inside "lorem". This value
* is equivalent to the previous option <i>wordBoundary</i></li>
* </ul>
* Or an object containing two properties:
* <ul>
* <li><i>value</i>: One of the above named string values</li>
* <li><i>limiters</i>: A custom array of string limiters for accuracy
* "exactly" or "complementary"</li>
* </ul>
*/
/**
* @typedef Mark~markWildcardsSetting
* @type {string}
* @property {"disabled"|"enabled"|"withSpaces"}
* [wildcards="disabled"] - Set to any of the following string values:
* <ul>
* <li><i>disabled</i>: Disable wildcard usage</li>
* <li><i>enabled</i>: When searching for "lor?m", the "?" will match zero
* or one non-space character (e.g. "lorm", "loram", "lor3m", etc). When
* searching for "lor*m", the "*" will match zero or more non-space
* characters (e.g. "lorm", "loram", "lor123m", etc).</li>
* <li><i>withSpaces</i>: When searching for "lor?m", the "?" will
* match zero or one space or non-space character (e.g. "lor m", "loram",
* etc). When searching for "lor*m", the "*" will match zero or more space
* or non-space characters (e.g. "lorm", "lore et dolor ipsum", "lor: m",
* etc).</li>
* </ul>
*/
/**
* @typedef Mark~markIgnorePunctuationSetting
* @type {string[]}
* @property {string} The strings in this setting will contain punctuation
* marks that will be ignored:
* <ul>
* <li>These punctuation marks can be between any characters, e.g. setting
* this option to <code>["'"]</code> would match "Worlds", "World's" and
* "Wo'rlds"</li>
* <li>One or more apostrophes between the letters would still produce a
* match (e.g. "W'o''r'l'd's").</li>
* <li>A typical setting for this option could be as follows:
* <pre>ignorePunctuation: ":;.,-–—‒_(){}[]!'\"+=".split(""),</pre> This
* setting includes common punctuation as well as a minus, en-dash,
* em-dash and figure-dash
* ({@link https://en.wikipedia.org/wiki/Dash#Figure_dash ref}), as well
* as an underscore.</li>
* </ul>
*/
/**
* These options also include the common options from
* {@link Mark~commonOptions}
* @typedef Mark~markOptions
* @type {object.<string>}
* @property {boolean} [separateWordSearch=true] - Whether to search for
* each word separated by a blank instead of the complete term
* @property {boolean} [diacritics=true] - If diacritic characters should be
* matched. ({@link https://en.wikipedia.org/wiki/Diacritic Diacritics})
* @property {object} [synonyms] - An object with synonyms. The key will be
* a synonym for the value and the value for the key
* @property {Mark~markAccuracySetting} [accuracy]
* @property {Mark~markWildcardsSetting} [wildcards]
* @property {boolean} [acrossElements=false] - Whether to find matches
* across HTML elements. By default, only matches within single HTML
* elements will be found
* @property {boolean} [ignoreJoiners=false] - Whether to ignore word
* joiners inside of key words. These include soft-hyphens, zero-width
* space, zero-width non-joiners and zero-width joiners.
* @property {Mark~markIgnorePunctuationSetting} [ignorePunctuation]
* @property {Mark~markEachCallback} [each]
* @property {Mark~markNoMatchCallback} [noMatch]
* @property {Mark~markFilterCallback} [filter]
*/
/**
* Marks the specified search terms
* @param {string|string[]} [sv] - Search value, either a search string or
* an array containing multiple search strings
* @param {Mark~markOptions} [opt] - Optional options object
* @access public
*/
mark(sv, opt) {
this.opt = opt;
let totalMatches = 0,
fn = 'wrapMatches';
const {
keywords: kwArr,
length: kwArrLen
} = this.getSeparatedKeywords(typeof sv === 'string' ? [sv] : sv),
sens = this.opt.caseSensitive ? '' : 'i',
handler = kw => {
// async function calls as iframes are async too
let regex = new RegExp(this.createRegExp(kw), `gm${sens}`),
matches = 0;
this.log(`Searching with expression "${regex}"`);
this[fn](regex, 1, (term, node) => {
return this.opt.filter(node, kw, totalMatches, matches);
}, element => {
matches++;
totalMatches++;
this.opt.each(element);
}, () => {
if (matches === 0) {
this.opt.noMatch(kw);
}
if (kwArr[kwArrLen - 1] === kw) {
this.opt.done(totalMatches);
} else {
handler(kwArr[kwArr.indexOf(kw) + 1]);
}
});
};
if (this.opt.acrossElements) {
fn = 'wrapMatchesAcrossElements';
}
if (kwArrLen === 0) {
this.opt.done(totalMatches);
} else {
handler(kwArr[0]);
}
}
/**
* Callback for each marked element
* @callback Mark~markRangesEachCallback
* @param {HTMLElement} element - The marked DOM element
* @param {array} range - array of range start and end points
*/
/**
* Callback if a processed range is invalid, out-of-bounds, overlaps another
* range, or only matches whitespace
* @callback Mark~markRangesNoMatchCallback
* @param {Mark~rangeObject} range - a range object
*/
/**
* Callback to filter matches
* @callback Mark~markRangesFilterCallback
* @param {HTMLElement} node - The text node which includes the range
* @param {array} range - array of range start and end points
* @param {string} match - string extracted from the matching range
* @param {number} counter - A counter indicating the number of all marks
*/
/**
* These options also include the common options from
* {@link Mark~commonOptions}
* @typedef Mark~markRangesOptions
* @type {object.<string>}
* @property {Mark~markRangesEachCallback} [each]
* @property {Mark~markRangesNoMatchCallback} [noMatch]
* @property {Mark~markRangesFilterCallback} [filter]
*/
/**
* Marks an array of objects containing a start with an end or length of the
* string to mark
* @param {Mark~setOfRanges} rawRanges - The original (preprocessed)
* array of objects
* @param {Mark~markRangesOptions} [opt] - Optional options object
* @access public
*/
markRanges(rawRanges, opt) {
this.opt = opt;
let totalMatches = 0,
ranges = this.checkRanges(rawRanges);
if (ranges && ranges.length) {
this.log('Starting to mark with the following ranges: ' + JSON.stringify(ranges));
this.wrapRangeFromIndex(ranges, (node, range, match, counter) => {
return this.opt.filter(node, range, match, counter);
}, (element, range) => {
totalMatches++;
this.opt.each(element, range);
}, () => {
this.opt.done(totalMatches);
});
} else {
this.opt.done(totalMatches);
}
}
/**
* Removes all marked elements inside the context with their HTML and
* normalizes the parent at the end
* @param {Mark~commonOptions} [opt] - Optional options object
* @access public
*/
unmark(opt) {
this.opt = opt;
let sel = this.opt.element ? this.opt.element : '*';
sel += '[data-markjs]';
if (this.opt.className) {
sel += `.${this.opt.className}`;
}
this.log(`Removal selector "${sel}"`);
this.iterator.forEachNode(NodeFilter.SHOW_ELEMENT, node => {
this.unwrapMatches(node);
}, node => {
const matchesSel = DOMIterator.matches(node, sel),
matchesExclude = this.matchesExclude(node);
if (!matchesSel || matchesExclude) {
return NodeFilter.FILTER_REJECT;
} else {
return NodeFilter.FILTER_ACCEPT;
}
}, this.opt.done);
}
}
function Mark(ctx) {
const instance = new Mark$1(ctx);
this.mark = (sv, opt) => {
instance.mark(sv, opt);
return this;
};
this.markRegExp = (sv, opt) => {
instance.markRegExp(sv, opt);
return this;
};
this.markRanges = (sv, opt) => {
instance.markRanges(sv, opt);
return this;
};
this.unmark = opt => {
instance.unmark(opt);
return this;
};
return this;
}
const defaultOptions = {
exclude: [],
separateWordSearch: true,
accuracy: 'partially',
diacritics: true,
synonyms: {},
iframes: false,
iframesTimeout: 5000,
acrossElements: true,
caseSensitive: false,
ignoreJoiners: false,
wildcards: 'disabled',
compatibility: false
};
if (Joomla.getOptions && typeof Joomla.getOptions === 'function' && Joomla.getOptions('highlight')) {
const scriptOptions = Joomla.getOptions('highlight');
scriptOptions.forEach(currentOpts => {
const options = { ...defaultOptions,
...currentOpts
}; // Continue only if the element exists
if (!options.compatibility) {
const element = document.querySelector(`.${options.class}`);
if (element) {
const instance = new Mark(element); // Loop through the terms
options.highLight.forEach(term => {
instance.mark(term, options);
});
}
} else {
const start = document.querySelector(`#${options.start}`);
document.querySelector(`#${options.end}`);
const parent = start.parentNode;
const targetNodes = [];
const allElems = Array.from(parent.childNodes);
allElems.forEach(element => {
{
return;
}
});
targetNodes.forEach(node => {
const instance = new Mark(node); // Loop through the terms
options.highLight.map(term => instance.mark(term, options));
});
}
});
}
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