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84 changes: 84 additions & 0 deletions
84
app/assets/javascripts/components/article_finder/article_finder_search_bar.jsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| import React, { useCallback, useState } from 'react'; | ||
| import { debounce } from 'lodash'; | ||
| import { fetchArticleAutocompleteResults } from '../../utils/article_finder_utils'; | ||
|
|
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| // Controls Search bar and autocomplete functionality | ||
|
|
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| function ArticleFinderSearchBar({ value, onChange, onSearch, disabled, wiki }) { | ||
| const [suggestions, setSuggestions] = useState([]); | ||
| const [isAutocompleteLoading, setAutocompleteLoading] = useState(false); | ||
| let searchClass = 'search-bar'; | ||
|
|
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| if (suggestions.length > 0) { | ||
| searchClass += ' autocomplete-on'; | ||
| } | ||
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| const _getSuggestionsApi = useCallback(debounce(async (q) => { | ||
| setAutocompleteLoading(true); | ||
| const results = await fetchArticleAutocompleteResults(q, wiki).catch(() => []); | ||
| setAutocompleteLoading(false); | ||
| setSuggestions(results); | ||
| }, 500), []); | ||
|
|
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| const inputChangeHandler = (e) => { | ||
| onChange(e.target.value); | ||
| // autocomplete disabled while disabled (during loading etc.) | ||
| if (!disabled) { | ||
| if (e.target.value === '') { | ||
| setSuggestions([]); | ||
| } else { | ||
| _getSuggestionsApi(e.target.value); | ||
| } | ||
| } | ||
| }; | ||
|
|
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| const searchHandler = () => { | ||
| if (disabled || value.trim() === '') return; | ||
| setSuggestions([]); | ||
| onSearch(value); | ||
| }; | ||
|
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| const onKeyDownHandler = (e) => { | ||
| // Search on Enter | ||
| if (e.key === 'Enter') { | ||
| searchHandler(); | ||
| } | ||
| }; | ||
|
|
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| const autoCompleteClickHandler = (suggestion) => { | ||
| onChange(suggestion); | ||
| // call onSearch directly instead of searchHandler to use the latest suggestion value and not the old state value | ||
| onSearch(suggestion); | ||
| setSuggestions([]); | ||
| }; | ||
|
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| return ( | ||
| <div className={searchClass}> | ||
| <input | ||
| type="text" | ||
| id="article-searchbar" | ||
| placeholder={I18n.t('article_finder.search_placeholder')} | ||
| onChange={inputChangeHandler} | ||
| value={value} | ||
| onKeyDown={onKeyDownHandler} | ||
| /> | ||
|
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| { | ||
| isAutocompleteLoading && <div className="loader"><div className="loading__spinner"/></div> | ||
| } | ||
|
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| <button onClick={searchHandler} disabled={disabled}> | ||
| {I18n.t('article_finder.search')} | ||
| </button> | ||
| <div className="autocomplete"> | ||
| { | ||
| suggestions.map((sug) => { | ||
| return <div key={sug} className="autocomplete-item" onClick={() => autoCompleteClickHandler(sug)}> {sug} </div>; | ||
| }) | ||
| } | ||
| </div> | ||
| </div> | ||
| ); | ||
| } | ||
|
|
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| export default ArticleFinderSearchBar; |
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