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FxSpawner.tsx
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FxSpawner.tsx
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import { Colors } from '../constants/Colors';
import { FxSpawnerEntry } from './FxSpawnerEntry';
import { Scrollable } from './Scrollable';
import { combineArraysUnique } from '../utils/combineArraysUnique';
import { useDispatch, useSelector } from '../states/store';
import React, { useEffect, useMemo, useRef, useState } from 'react';
import styled from 'styled-components';
// == styles =======================================================================================
const Input = styled.input`
display: block;
width: calc( 100% - 0.5rem );
font-size: 1rem;
font-family: 'Roboto', sans-serif;
line-height: 1em;
padding: 0.25rem;
border: none;
background: ${ Colors.back1 };
color: ${ Colors.fore };
pointer-events: auto;
`;
const FxList = styled( Scrollable )`
height: 10rem;
`;
const Container = styled.div`
position: absolute;
left: calc( 50% - 10rem );
top: 1rem;
width: 20rem;
overflow: hidden;
background: ${ Colors.back2 };
filter: drop-shadow( 0 0 2px ${ Colors.black } );
font-size: 0.8rem;
`;
const OverlayBG = styled.div`
position: absolute;
left: 0;
top: 0;
width: 100%;
height: 100%;
background: ${ Colors.black };
opacity: 0.6;
`;
const Root = styled.div`
`;
// == element ======================================================================================
export interface FxSpawnerProps {
className?: string;
}
const FxSpawner = ( { className }: FxSpawnerProps ): JSX.Element | null => {
const dispatch = useDispatch();
const [ query, setQuery ] = useState<string>( '' );
const [ focus, setFocus ] = useState<number>( 0 );
const refInput = useRef<HTMLInputElement>( null );
const { isVisible, recently, callback, automaton, fxDefinitions } = useSelector( ( state ) => ( {
isVisible: state.fxSpawner.isVisible,
recently: state.fxSpawner.recently,
callback: state.fxSpawner.callback,
automaton: state.automaton.instance,
fxDefinitions: state.automaton.fxDefinitions
} ) );
useEffect( () => { // focus the input when it gets activated
if ( isVisible ) {
refInput.current?.focus();
}
}, [ isVisible ] );
const fxs = useMemo( () => (
combineArraysUnique(
recently,
Object.keys( fxDefinitions )
)
), [ fxDefinitions, recently ] );
const filteredFxs = useMemo( () => {
const queries = query.split( /\s+/ );
return fxs.filter( ( fx ) => queries.every( ( query ) => (
fx.toLowerCase().includes( query.toLowerCase() ) ||
automaton?.getFxDefinitionName( fx )?.toLowerCase().includes( query.toLowerCase() ) ||
automaton?.getFxDefinitionDescription( fx )?.toLowerCase().includes( query.toLowerCase() )
) ) );
}, [ fxs, query, automaton ] );
function selectFx( name: string ): void {
callback!( name );
dispatch( {
type: 'FxSpawner/AddRecently',
name
} );
dispatch( { type: 'FxSpawner/Close' } );
}
function handleChange( event: React.ChangeEvent<HTMLInputElement> ): void {
setQuery( event.target.value );
setFocus( 0 );
}
function handleKeyDown( event: React.KeyboardEvent<HTMLInputElement> ): void {
if ( event.nativeEvent.key === 'Enter' ) {
const fx = filteredFxs[ focus ];
if ( fx ) {
selectFx( fx );
} else {
dispatch( { type: 'FxSpawner/Close' } );
}
} else if ( event.nativeEvent.key === 'Escape' ) {
dispatch( { type: 'FxSpawner/Close' } );
} else if ( event.nativeEvent.key === 'ArrowDown' ) {
event.preventDefault();
let newFocus = focus + 1;
if ( !filteredFxs || newFocus === filteredFxs.length ) {
newFocus = 0;
}
setFocus( newFocus );
} else if ( event.nativeEvent.key === 'ArrowUp' ) {
event.preventDefault();
let newFocus = focus - 1;
if ( newFocus === -1 ) {
newFocus = ( filteredFxs && filteredFxs.length !== 0 ) ? ( filteredFxs.length - 1 ) : 0;
}
setFocus( newFocus );
}
}
return ( automaton && (
<Root className={ className }>
<OverlayBG
onClick={ () => dispatch( { type: 'FxSpawner/Close' } ) }
/>
<Container>
<Input
ref={ refInput }
value={ query }
placeholder="Add an fx..."
onChange={ handleChange }
onKeyDown={ handleKeyDown }
/>
<FxList>
{ filteredFxs!.map( ( fx, i ) => (
<FxSpawnerEntry
key={ fx }
name={ automaton.getFxDefinitionName( fx ) || undefined }
id={ fx }
description={ automaton.getFxDefinitionDescription( fx ) || undefined }
isSelected={ focus === i }
onClick={ () => selectFx( fx ) }
/>
) ) }
{ filteredFxs.length === 0 && (
<FxSpawnerEntry
name="No result found"
id=":("
description="Try another word!"
/>
) }
</FxList>
</Container>
</Root>
) ) ?? null;
};
export { FxSpawner };