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import { useRouter } from 'next/router'
import { useImperativeHandle, useRef, useState } from 'react'
let lock = false
const SearchInput = ({ keyword, cRef, className }) => {
const [onLoading, setLoadingState] = useState(false)
const router = useRouter()
const searchInputRef = useRef()
useImperativeHandle(cRef, () => {
return {
focus: () => {
searchInputRef?.current?.focus()
}
}
})
const handleSearch = () => {
const key = searchInputRef.current.value
if (key && key !== '') {
setLoadingState(true)
location.href = '/search/' + key
} else {
router.push({ pathname: '/' }).then(r => {
})
}
}
const handleKeyUp = (e) => {
if (e.keyCode === 13) { // 回车
handleSearch(searchInputRef.current.value)
} else if (e.keyCode === 27) { // ESC
cleanSearch()
}
}
const cleanSearch = () => {
searchInputRef.current.value = ''
}
const [showClean, setShowClean] = useState(false)
const updateSearchKey = (val) => {
if (lock) {
return
}
searchInputRef.current.value = val
if (val) {
setShowClean(true)
} else {
setShowClean(false)
}
}
function lockSearchInput() {
lock = true
}
function unLockSearchInput() {
lock = false
}
return <div className={'flex w-full bg-gray-100 ' + className}>
<input
ref={searchInputRef}
type='text'
className={'outline-none w-full text-sm pl-2 transition focus:shadow-lg font-light leading-10 text-black bg-gray-100 dark:bg-gray-900 dark:text-white'}
onKeyUp={handleKeyUp}
onCompositionStart={lockSearchInput}
onCompositionUpdate={lockSearchInput}
onCompositionEnd={unLockSearchInput}
onChange={e => updateSearchKey(e.target.value)}
defaultValue={keyword}
/>
<div className='-ml-8 cursor-pointer float-right items-center justify-center py-2'
onClick={handleSearch}>
<i className={`hover:text-black transform duration-200 text-gray-500 dark:hover:text-gray-300 cursor-pointer fas ${onLoading ? 'fa-spinner animate-spin' : 'fa-search'} `} />
</div>
{(showClean &&
<div className='-ml-12 cursor-pointer float-right items-center justify-center py-2'>
<i className='fas fa-times hover:text-black transform duration-200 text-gray-400 cursor-pointer dark:hover:text-gray-300' onClick={cleanSearch} />
</div>
)}
</div>
}
export default SearchInput
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