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fix(docs): search (#6605)

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Jason Rasmussen 2024-01-23 17:50:25 -05:00 committed by GitHub
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import Hogan from 'hogan.js';
import LunrSearchAdapter from './lunar-search';
import autocomplete from 'autocomplete.js';
import templates from './templates';
import utils from './utils';
import $ from 'autocomplete.js/zepto';
class DocSearch {
constructor({
searchDocs,
searchIndex,
inputSelector,
debug = false,
baseUrl = '/',
queryDataCallback = null,
autocompleteOptions = {
debug: false,
hint: false,
autoselect: true,
},
transformData = false,
queryHook = false,
handleSelected = false,
enhancedSearchInput = false,
layout = 'collumns',
}) {
this.input = DocSearch.getInputFromSelector(inputSelector);
this.queryDataCallback = queryDataCallback || null;
const autocompleteOptionsDebug =
autocompleteOptions && autocompleteOptions.debug ? autocompleteOptions.debug : false;
// eslint-disable-next-line no-param-reassign
autocompleteOptions.debug = debug || autocompleteOptionsDebug;
this.autocompleteOptions = autocompleteOptions;
this.autocompleteOptions.cssClasses = this.autocompleteOptions.cssClasses || {};
this.autocompleteOptions.cssClasses.prefix = this.autocompleteOptions.cssClasses.prefix || 'ds';
const inputAriaLabel = this.input && typeof this.input.attr === 'function' && this.input.attr('aria-label');
this.autocompleteOptions.ariaLabel = this.autocompleteOptions.ariaLabel || inputAriaLabel || 'search input';
this.isSimpleLayout = layout === 'simple';
this.client = new LunrSearchAdapter(searchDocs, searchIndex, baseUrl);
if (enhancedSearchInput) {
this.input = DocSearch.injectSearchBox(this.input);
}
this.autocomplete = autocomplete(this.input, autocompleteOptions, [
{
source: this.getAutocompleteSource(transformData, queryHook),
templates: {
suggestion: DocSearch.getSuggestionTemplate(this.isSimpleLayout),
footer: templates.footer,
empty: DocSearch.getEmptyTemplate(),
},
},
]);
const customHandleSelected = handleSelected;
this.handleSelected = customHandleSelected || this.handleSelected;
// We prevent default link clicking if a custom handleSelected is defined
if (customHandleSelected) {
$('.algolia-autocomplete').on('click', '.ds-suggestions a', (event) => {
event.preventDefault();
});
}
this.autocomplete.on('autocomplete:selected', this.handleSelected.bind(null, this.autocomplete.autocomplete));
this.autocomplete.on('autocomplete:shown', this.handleShown.bind(null, this.input));
if (enhancedSearchInput) {
DocSearch.bindSearchBoxEvent();
}
}
static injectSearchBox(input) {
input.before(templates.searchBox);
const newInput = input.prev().prev().find('input');
input.remove();
return newInput;
}
static bindSearchBoxEvent() {
$('.searchbox [type="reset"]').on('click', function () {
$('input#docsearch').focus();
$(this).addClass('hide');
autocomplete.autocomplete.setVal('');
});
$('input#docsearch').on('keyup', () => {
const searchbox = document.querySelector('input#docsearch');
const reset = document.querySelector('.searchbox [type="reset"]');
reset.className = 'searchbox__reset';
if (searchbox.value.length === 0) {
reset.className += ' hide';
}
});
}
/**
* Returns the matching input from a CSS selector, null if none matches
* @function getInputFromSelector
* @param {string} selector CSS selector that matches the search
* input of the page
* @returns {void}
*/
static getInputFromSelector(selector) {
const input = $(selector).filter('input');
return input.length ? $(input[0]) : null;
}
/**
* Returns the `source` method to be passed to autocomplete.js. It will query
* the Algolia index and call the callbacks with the formatted hits.
* @function getAutocompleteSource
* @param {function} transformData An optional function to transform the hits
* @param {function} queryHook An optional function to transform the query
* @returns {function} Method to be passed as the `source` option of
* autocomplete
*/
getAutocompleteSource(transformData, queryHook) {
return (query, callback) => {
if (queryHook) {
// eslint-disable-next-line no-param-reassign
query = queryHook(query) || query;
}
this.client.search(query).then((hits) => {
if (this.queryDataCallback && typeof this.queryDataCallback == 'function') {
this.queryDataCallback(hits);
}
if (transformData) {
hits = transformData(hits) || hits;
}
callback(DocSearch.formatHits(hits));
});
};
}
// Given a list of hits returned by the API, will reformat them to be used in
// a Hogan template
static formatHits(receivedHits) {
const clonedHits = utils.deepClone(receivedHits);
const hits = clonedHits.map((hit) => {
if (hit._highlightResult) {
// eslint-disable-next-line no-param-reassign
hit._highlightResult = utils.mergeKeyWithParent(hit._highlightResult, 'hierarchy');
}
return utils.mergeKeyWithParent(hit, 'hierarchy');
});
// Group hits by category / subcategory
let groupedHits = utils.groupBy(hits, 'lvl0');
$.each(groupedHits, (level, collection) => {
const groupedHitsByLvl1 = utils.groupBy(collection, 'lvl1');
const flattenedHits = utils.flattenAndFlagFirst(groupedHitsByLvl1, 'isSubCategoryHeader');
groupedHits[level] = flattenedHits;
});
groupedHits = utils.flattenAndFlagFirst(groupedHits, 'isCategoryHeader');
// Translate hits into smaller objects to be send to the template
return groupedHits.map((hit) => {
const url = DocSearch.formatURL(hit);
const category = utils.getHighlightedValue(hit, 'lvl0');
const subcategory = utils.getHighlightedValue(hit, 'lvl1') || category;
const displayTitle = utils
.compact([
utils.getHighlightedValue(hit, 'lvl2') || subcategory,
utils.getHighlightedValue(hit, 'lvl3'),
utils.getHighlightedValue(hit, 'lvl4'),
utils.getHighlightedValue(hit, 'lvl5'),
utils.getHighlightedValue(hit, 'lvl6'),
])
.join('<span class="aa-suggestion-title-separator" aria-hidden="true"> › </span>');
const text = utils.getSnippetedValue(hit, 'content');
const isTextOrSubcategoryNonEmpty = (subcategory && subcategory !== '') || (displayTitle && displayTitle !== '');
const isLvl1EmptyOrDuplicate = !subcategory || subcategory === '' || subcategory === category;
const isLvl2 = displayTitle && displayTitle !== '' && displayTitle !== subcategory;
const isLvl1 = !isLvl2 && subcategory && subcategory !== '' && subcategory !== category;
const isLvl0 = !isLvl1 && !isLvl2;
return {
isLvl0,
isLvl1,
isLvl2,
isLvl1EmptyOrDuplicate,
isCategoryHeader: hit.isCategoryHeader,
isSubCategoryHeader: hit.isSubCategoryHeader,
isTextOrSubcategoryNonEmpty,
category,
subcategory,
title: displayTitle,
text,
url,
};
});
}
static formatURL(hit) {
const { url, anchor } = hit;
if (url) {
const containsAnchor = url.indexOf('#') !== -1;
if (containsAnchor) return url;
else if (anchor) return `${hit.url}#${hit.anchor}`;
return url;
} else if (anchor) return `#${hit.anchor}`;
/* eslint-disable */
console.warn('no anchor nor url for : ', JSON.stringify(hit));
/* eslint-enable */
return null;
}
static getEmptyTemplate() {
return (args) => Hogan.compile(templates.empty).render(args);
}
static getSuggestionTemplate(isSimpleLayout) {
const stringTemplate = isSimpleLayout ? templates.suggestionSimple : templates.suggestion;
const template = Hogan.compile(stringTemplate);
return (suggestion) => template.render(suggestion);
}
handleSelected(input, event, suggestion, datasetNumber, context = {}) {
// Do nothing if click on the suggestion, as it's already a <a href>, the
// browser will take care of it. This allow Ctrl-Clicking on results and not
// having the main window being redirected as well
if (context.selectionMethod === 'click') {
return;
}
input.setVal('');
window.location.assign(suggestion.url);
}
handleShown(input) {
const middleOfInput = input.offset().left + input.width() / 2;
let middleOfWindow = $(document).width() / 2;
if (isNaN(middleOfWindow)) {
middleOfWindow = 900;
}
const alignClass = middleOfInput - middleOfWindow >= 0 ? 'algolia-autocomplete-right' : 'algolia-autocomplete-left';
const otherAlignClass =
middleOfInput - middleOfWindow < 0 ? 'algolia-autocomplete-right' : 'algolia-autocomplete-left';
const autocompleteWrapper = $('.algolia-autocomplete');
if (!autocompleteWrapper.hasClass(alignClass)) {
autocompleteWrapper.addClass(alignClass);
}
if (autocompleteWrapper.hasClass(otherAlignClass)) {
autocompleteWrapper.removeClass(otherAlignClass);
}
}
}
export default DocSearch;

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import React, { useRef, useCallback, useState } from 'react';
import classnames from 'classnames';
import { useHistory } from '@docusaurus/router';
import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
import { usePluginData } from '@docusaurus/useGlobalData';
import useIsBrowser from '@docusaurus/useIsBrowser';
const Search = (props) => {
const initialized = useRef(false);
const searchBarRef = useRef(null);
const [indexReady, setIndexReady] = useState(false);
const history = useHistory();
const { siteConfig = {} } = useDocusaurusContext();
const isBrowser = useIsBrowser();
const { baseUrl } = siteConfig;
const initAlgolia = (searchDocs, searchIndex, DocSearch) => {
new DocSearch({
searchDocs,
searchIndex,
baseUrl,
inputSelector: '#search_input_react',
// Override algolia's default selection event, allowing us to do client-side
// navigation and avoiding a full page refresh.
handleSelected: (_input, _event, suggestion) => {
const url = suggestion.url || '/';
// Use an anchor tag to parse the absolute url into a relative url
// Alternatively, we can use new URL(suggestion.url) but its not supported in IE
const a = document.createElement('a');
a.href = url;
// Algolia use closest parent element id #__docusaurus when a h1 page title does not have an id
// So, we can safely remove it. See https://github.com/facebook/docusaurus/issues/1828 for more details.
history.push(url);
},
});
};
const pluginData = usePluginData('docusaurus-lunr-search');
const getSearchDoc = () =>
process.env.NODE_ENV === 'production'
? fetch(`${baseUrl}${pluginData.fileNames.searchDoc}`).then((content) => content.json())
: Promise.resolve([]);
const getLunrIndex = () =>
process.env.NODE_ENV === 'production'
? fetch(`${baseUrl}${pluginData.fileNames.lunrIndex}`).then((content) => content.json())
: Promise.resolve([]);
const loadAlgolia = () => {
if (!initialized.current) {
Promise.all([getSearchDoc(), getLunrIndex(), import('./DocSearch'), import('./algolia.css')]).then(
([searchDocs, searchIndex, { default: DocSearch }]) => {
if (searchDocs.length === 0) {
return;
}
initAlgolia(searchDocs, searchIndex, DocSearch);
setIndexReady(true);
},
);
initialized.current = true;
}
};
const toggleSearchIconClick = useCallback(
(e) => {
if (!searchBarRef.current.contains(e.target)) {
searchBarRef.current.focus();
}
props.handleSearchBarToggle && props.handleSearchBarToggle(!props.isSearchBarExpanded);
},
[props.isSearchBarExpanded],
);
if (isBrowser) {
loadAlgolia();
}
return (
<div className="navbar__search" key="search-box">
<span
aria-label="expand searchbar"
role="button"
className={classnames('search-icon', {
'search-icon-hidden': props.isSearchBarExpanded,
})}
onClick={toggleSearchIconClick}
onKeyDown={toggleSearchIconClick}
tabIndex={0}
/>
<input
id="search_input_react"
type="search"
placeholder={indexReady ? 'Search' : 'Loading...'}
aria-label="Search"
className={classnames(
'navbar__search-input',
{ 'search-bar-expanded': props.isSearchBarExpanded },
{ 'search-bar': !props.isSearchBarExpanded },
)}
onClick={loadAlgolia}
onMouseOver={loadAlgolia}
onFocus={toggleSearchIconClick}
onBlur={toggleSearchIconClick}
ref={searchBarRef}
disabled={!indexReady}
/>
</div>
);
};
export default Search;

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import lunr from '@generated/lunr.client';
lunr.tokenizer.separator = /[\s\-/]+/;
class LunrSearchAdapter {
constructor(searchDocs, searchIndex, baseUrl = '/') {
this.searchDocs = searchDocs;
this.lunrIndex = lunr.Index.load(searchIndex);
this.baseUrl = baseUrl;
}
getLunrResult(input) {
return this.lunrIndex.query(function (query) {
const tokens = lunr.tokenizer(input);
query.term(tokens, {
boost: 10,
});
query.term(tokens, {
wildcard: lunr.Query.wildcard.TRAILING,
});
});
}
getHit(doc, formattedTitle, formattedContent) {
return {
hierarchy: {
lvl0: doc.pageTitle || doc.title,
lvl1: doc.type === 0 ? null : doc.title,
},
url: doc.url,
_snippetResult: formattedContent
? {
content: {
value: formattedContent,
matchLevel: 'full',
},
}
: null,
_highlightResult: {
hierarchy: {
lvl0: {
value: doc.type === 0 ? formattedTitle || doc.title : doc.pageTitle,
},
lvl1:
doc.type === 0
? null
: {
value: formattedTitle || doc.title,
},
},
},
};
}
getTitleHit(doc, position, length) {
const start = position[0];
const end = position[0] + length;
let formattedTitle =
doc.title.substring(0, start) +
'<span class="algolia-docsearch-suggestion--highlight">' +
doc.title.substring(start, end) +
'</span>' +
doc.title.substring(end, doc.title.length);
return this.getHit(doc, formattedTitle);
}
getKeywordHit(doc, position, length) {
const start = position[0];
const end = position[0] + length;
let formattedTitle =
doc.title +
'<br /><i>Keywords: ' +
doc.keywords.substring(0, start) +
'<span class="algolia-docsearch-suggestion--highlight">' +
doc.keywords.substring(start, end) +
'</span>' +
doc.keywords.substring(end, doc.keywords.length) +
'</i>';
return this.getHit(doc, formattedTitle);
}
getContentHit(doc, position) {
const start = position[0];
const end = position[0] + position[1];
let previewStart = start;
let previewEnd = end;
let ellipsesBefore = true;
let ellipsesAfter = true;
for (let k = 0; k < 3; k++) {
const nextSpace = doc.content.lastIndexOf(' ', previewStart - 2);
const nextDot = doc.content.lastIndexOf('.', previewStart - 2);
if (nextDot > 0 && nextDot > nextSpace) {
previewStart = nextDot + 1;
ellipsesBefore = false;
break;
}
if (nextSpace < 0) {
previewStart = 0;
ellipsesBefore = false;
break;
}
previewStart = nextSpace + 1;
}
for (let k = 0; k < 10; k++) {
const nextSpace = doc.content.indexOf(' ', previewEnd + 1);
const nextDot = doc.content.indexOf('.', previewEnd + 1);
if (nextDot > 0 && nextDot < nextSpace) {
previewEnd = nextDot;
ellipsesAfter = false;
break;
}
if (nextSpace < 0) {
previewEnd = doc.content.length;
ellipsesAfter = false;
break;
}
previewEnd = nextSpace;
}
let preview = doc.content.substring(previewStart, start);
if (ellipsesBefore) {
preview = '... ' + preview;
}
preview += '<span class="algolia-docsearch-suggestion--highlight">' + doc.content.substring(start, end) + '</span>';
preview += doc.content.substring(end, previewEnd);
if (ellipsesAfter) {
preview += ' ...';
}
return this.getHit(doc, null, preview);
}
search(input) {
return new Promise((resolve, rej) => {
const results = this.getLunrResult(input);
const hits = [];
results.length > 5 && (results.length = 5);
this.titleHitsRes = [];
this.contentHitsRes = [];
results.forEach((result) => {
const doc = this.searchDocs[result.ref];
const { metadata } = result.matchData;
for (let i in metadata) {
if (metadata[i].title) {
if (!this.titleHitsRes.includes(result.ref)) {
const position = metadata[i].title.position[0];
hits.push(this.getTitleHit(doc, position, input.length));
this.titleHitsRes.push(result.ref);
}
} else if (metadata[i].content) {
const position = metadata[i].content.position[0];
hits.push(this.getContentHit(doc, position));
} else if (metadata[i].keywords) {
const position = metadata[i].keywords.position[0];
hits.push(this.getKeywordHit(doc, position, input.length));
this.titleHitsRes.push(result.ref);
}
}
});
hits.length > 5 && (hits.length = 5);
resolve(hits);
});
}
}
export default LunrSearchAdapter;

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.search-icon {
background-image: var(--ifm-navbar-search-input-icon);
height: auto;
width: 24px;
cursor: pointer;
padding: 8px;
line-height: 32px;
background-repeat: no-repeat;
background-position: center;
display: none;
}
.search-icon-hidden {
visibility: hidden;
}
@media (max-width: 360px) {
.search-bar {
width: 0 !important;
background: none !important;
padding: 0 !important;
transition: none !important;
}
.search-bar-expanded {
width: 9rem !important;
}
.search-icon {
display: inline;
vertical-align: sub;
}
}

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const prefix = 'algolia-docsearch';
const suggestionPrefix = `${prefix}-suggestion`;
const footerPrefix = `${prefix}-footer`;
const templates = {
suggestion: `
<a class="${suggestionPrefix}
{{#isCategoryHeader}}${suggestionPrefix}__main{{/isCategoryHeader}}
{{#isSubCategoryHeader}}${suggestionPrefix}__secondary{{/isSubCategoryHeader}}
"
aria-label="Link to the result"
href="{{{url}}}"
>
<div class="${suggestionPrefix}--category-header">
<span class="${suggestionPrefix}--category-header-lvl0">{{{category}}}</span>
</div>
<div class="${suggestionPrefix}--wrapper">
<div class="${suggestionPrefix}--subcategory-column">
<span class="${suggestionPrefix}--subcategory-column-text">{{{subcategory}}}</span>
</div>
{{#isTextOrSubcategoryNonEmpty}}
<div class="${suggestionPrefix}--content">
<div class="${suggestionPrefix}--subcategory-inline">{{{subcategory}}}</div>
<div class="${suggestionPrefix}--title">{{{title}}}</div>
{{#text}}<div class="${suggestionPrefix}--text">{{{text}}}</div>{{/text}}
</div>
{{/isTextOrSubcategoryNonEmpty}}
</div>
</a>
`,
suggestionSimple: `
<div class="${suggestionPrefix}
{{#isCategoryHeader}}${suggestionPrefix}__main{{/isCategoryHeader}}
{{#isSubCategoryHeader}}${suggestionPrefix}__secondary{{/isSubCategoryHeader}}
suggestion-layout-simple
">
<div class="${suggestionPrefix}--category-header">
{{^isLvl0}}
<span class="${suggestionPrefix}--category-header-lvl0 ${suggestionPrefix}--category-header-item">{{{category}}}</span>
{{^isLvl1}}
{{^isLvl1EmptyOrDuplicate}}
<span class="${suggestionPrefix}--category-header-lvl1 ${suggestionPrefix}--category-header-item">
{{{subcategory}}}
</span>
{{/isLvl1EmptyOrDuplicate}}
{{/isLvl1}}
{{/isLvl0}}
<div class="${suggestionPrefix}--title ${suggestionPrefix}--category-header-item">
{{#isLvl2}}
{{{title}}}
{{/isLvl2}}
{{#isLvl1}}
{{{subcategory}}}
{{/isLvl1}}
{{#isLvl0}}
{{{category}}}
{{/isLvl0}}
</div>
</div>
<div class="${suggestionPrefix}--wrapper">
{{#text}}
<div class="${suggestionPrefix}--content">
<div class="${suggestionPrefix}--text">{{{text}}}</div>
</div>
{{/text}}
</div>
</div>
`,
footer: `
<div class="${footerPrefix}">
</div>
`,
empty: `
<div class="${suggestionPrefix}">
<div class="${suggestionPrefix}--wrapper">
<div class="${suggestionPrefix}--content ${suggestionPrefix}--no-results">
<div class="${suggestionPrefix}--title">
<div class="${suggestionPrefix}--text">
No results found for query <b>"{{query}}"</b>
</div>
</div>
</div>
</div>
</div>
`,
searchBox: `
<form novalidate="novalidate" onsubmit="return false;" class="searchbox">
<div role="search" class="searchbox__wrapper">
<input id="docsearch" type="search" name="search" placeholder="Search the docs" autocomplete="off" required="required" class="searchbox__input"/>
<button type="submit" title="Submit your search query." class="searchbox__submit" >
<svg width=12 height=12 role="img" aria-label="Search">
<use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#sbx-icon-search-13"></use>
</svg>
</button>
<button type="reset" title="Clear the search query." class="searchbox__reset hide">
<svg width=12 height=12 role="img" aria-label="Reset">
<use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#sbx-icon-clear-3"></use>
</svg>
</button>
</div>
</form>
<div class="svg-icons" style="height: 0; width: 0; position: absolute; visibility: hidden">
<svg xmlns="http://www.w3.org/2000/svg">
<symbol id="sbx-icon-clear-3" viewBox="0 0 40 40"><path d="M16.228 20L1.886 5.657 0 3.772 3.772 0l1.885 1.886L20 16.228 34.343 1.886 36.228 0 40 3.772l-1.886 1.885L23.772 20l14.342 14.343L40 36.228 36.228 40l-1.885-1.886L20 23.772 5.657 38.114 3.772 40 0 36.228l1.886-1.885L16.228 20z" fill-rule="evenodd"></symbol>
<symbol id="sbx-icon-search-13" viewBox="0 0 40 40"><path d="M26.806 29.012a16.312 16.312 0 0 1-10.427 3.746C7.332 32.758 0 25.425 0 16.378 0 7.334 7.333 0 16.38 0c9.045 0 16.378 7.333 16.378 16.38 0 3.96-1.406 7.593-3.746 10.426L39.547 37.34c.607.608.61 1.59-.004 2.203a1.56 1.56 0 0 1-2.202.004L26.807 29.012zm-10.427.627c7.322 0 13.26-5.938 13.26-13.26 0-7.324-5.938-13.26-13.26-13.26-7.324 0-13.26 5.936-13.26 13.26 0 7.322 5.936 13.26 13.26 13.26z" fill-rule="evenodd"></symbol>
</svg>
</div>
`,
};
export default templates;

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import $ from 'autocomplete.js/zepto';
const utils = {
/*
* Move the content of an object key one level higher.
* eg.
* {
* name: 'My name',
* hierarchy: {
* lvl0: 'Foo',
* lvl1: 'Bar'
* }
* }
* Will be converted to
* {
* name: 'My name',
* lvl0: 'Foo',
* lvl1: 'Bar'
* }
* @param {Object} object Main object
* @param {String} property Main object key to move up
* @return {Object}
* @throws Error when key is not an attribute of Object or is not an object itself
*/
mergeKeyWithParent(object, property) {
if (object[property] === undefined) {
return object;
}
if (typeof object[property] !== 'object') {
return object;
}
const newObject = $.extend({}, object, object[property]);
delete newObject[property];
return newObject;
},
/*
* Group all objects of a collection by the value of the specified attribute
* If the attribute is a string, use the lowercase form.
*
* eg.
* groupBy([
* {name: 'Tim', category: 'dev'},
* {name: 'Vincent', category: 'dev'},
* {name: 'Ben', category: 'sales'},
* {name: 'Jeremy', category: 'sales'},
* {name: 'AlexS', category: 'dev'},
* {name: 'AlexK', category: 'sales'}
* ], 'category');
* =>
* {
* 'devs': [
* {name: 'Tim', category: 'dev'},
* {name: 'Vincent', category: 'dev'},
* {name: 'AlexS', category: 'dev'}
* ],
* 'sales': [
* {name: 'Ben', category: 'sales'},
* {name: 'Jeremy', category: 'sales'},
* {name: 'AlexK', category: 'sales'}
* ]
* }
* @param {array} collection Array of objects to group
* @param {String} property The attribute on which apply the grouping
* @return {array}
* @throws Error when one of the element does not have the specified property
*/
groupBy(collection, property) {
const newCollection = {};
$.each(collection, (index, item) => {
if (item[property] === undefined) {
throw new Error(`[groupBy]: Object has no key ${property}`);
}
let key = item[property];
if (typeof key === 'string') {
key = key.toLowerCase();
}
// fix #171 the given data type of docsearch hits might be conflict with the properties of the native Object,
// such as the constructor, so we need to do this check.
if (!Object.prototype.hasOwnProperty.call(newCollection, key)) {
newCollection[key] = [];
}
newCollection[key].push(item);
});
return newCollection;
},
/*
* Return an array of all the values of the specified object
* eg.
* values({
* foo: 42,
* bar: true,
* baz: 'yep'
* })
* =>
* [42, true, yep]
* @param {object} object Object to extract values from
* @return {array}
*/
values(object) {
return Object.keys(object).map((key) => object[key]);
},
/*
* Flattens an array
* eg.
* flatten([1, 2, [3, 4], [5, 6]])
* =>
* [1, 2, 3, 4, 5, 6]
* @param {array} array Array to flatten
* @return {array}
*/
flatten(array) {
const results = [];
array.forEach((value) => {
if (!Array.isArray(value)) {
results.push(value);
return;
}
value.forEach((subvalue) => {
results.push(subvalue);
});
});
return results;
},
/*
* Flatten all values of an object into an array, marking each first element of
* each group with a specific flag
* eg.
* flattenAndFlagFirst({
* 'devs': [
* {name: 'Tim', category: 'dev'},
* {name: 'Vincent', category: 'dev'},
* {name: 'AlexS', category: 'dev'}
* ],
* 'sales': [
* {name: 'Ben', category: 'sales'},
* {name: 'Jeremy', category: 'sales'},
* {name: 'AlexK', category: 'sales'}
* ]
* , 'isTop');
* =>
* [
* {name: 'Tim', category: 'dev', isTop: true},
* {name: 'Vincent', category: 'dev', isTop: false},
* {name: 'AlexS', category: 'dev', isTop: false},
* {name: 'Ben', category: 'sales', isTop: true},
* {name: 'Jeremy', category: 'sales', isTop: false},
* {name: 'AlexK', category: 'sales', isTop: false}
* ]
* @param {object} object Object to flatten
* @param {string} flag Flag to set to true on first element of each group
* @return {array}
*/
flattenAndFlagFirst(object, flag) {
const values = this.values(object).map((collection) =>
collection.map((item, index) => {
// eslint-disable-next-line no-param-reassign
item[flag] = index === 0;
return item;
}),
);
return this.flatten(values);
},
/*
* Removes all empty strings, null, false and undefined elements array
* eg.
* compact([42, false, null, undefined, '', [], 'foo']);
* =>
* [42, [], 'foo']
* @param {array} array Array to compact
* @return {array}
*/
compact(array) {
const results = [];
array.forEach((value) => {
if (!value) {
return;
}
results.push(value);
});
return results;
},
/*
* Returns the highlighted value of the specified key in the specified object.
* If no highlighted value is available, will return the key value directly
* eg.
* getHighlightedValue({
* _highlightResult: {
* text: {
* value: '<mark>foo</mark>'
* }
* },
* text: 'foo'
* }, 'text');
* =>
* '<mark>foo</mark>'
* @param {object} object Hit object returned by the Algolia API
* @param {string} property Object key to look for
* @return {string}
**/
getHighlightedValue(object, property) {
if (
object._highlightResult &&
object._highlightResult.hierarchy_camel &&
object._highlightResult.hierarchy_camel[property] &&
object._highlightResult.hierarchy_camel[property].matchLevel &&
object._highlightResult.hierarchy_camel[property].matchLevel !== 'none' &&
object._highlightResult.hierarchy_camel[property].value
) {
return object._highlightResult.hierarchy_camel[property].value;
}
if (
object._highlightResult &&
object._highlightResult &&
object._highlightResult[property] &&
object._highlightResult[property].value
) {
return object._highlightResult[property].value;
}
return object[property];
},
/*
* Returns the snippeted value of the specified key in the specified object.
* If no highlighted value is available, will return the key value directly.
* Will add starting and ending ellipsis () if we detect that a sentence is
* incomplete
* eg.
* getSnippetedValue({
* _snippetResult: {
* text: {
* value: '<mark>This is an unfinished sentence</mark>'
* }
* },
* text: 'This is an unfinished sentence'
* }, 'text');
* =>
* '<mark>This is an unfinished sentence</mark>…'
* @param {object} object Hit object returned by the Algolia API
* @param {string} property Object key to look for
* @return {string}
**/
getSnippetedValue(object, property) {
if (!object._snippetResult || !object._snippetResult[property] || !object._snippetResult[property].value) {
return object[property];
}
let snippet = object._snippetResult[property].value;
if (snippet[0] !== snippet[0].toUpperCase()) {
snippet = `${snippet}`;
}
if (['.', '!', '?'].indexOf(snippet[snippet.length - 1]) === -1) {
snippet = `${snippet}`;
}
return snippet;
},
/*
* Deep clone an object.
* Note: This will not clone functions and dates
* @param {object} object Object to clone
* @return {object}
*/
deepClone(object) {
return JSON.parse(JSON.stringify(object));
},
};
export default utils;