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colorPicker.js
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colorPicker.js
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/*
* Copyright 2020 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* External dependencies
*/
import { CSSTransition } from 'react-transition-group';
import { useEffect, useRef, useCallback } from 'react';
import PropTypes from 'prop-types';
import styled from 'styled-components';
/**
* WordPress dependencies
*/
import { __ } from '@wordpress/i18n';
/**
* Internal dependencies
*/
import { PatternPropType } from '../../types';
import { useKeyDownEffect } from '../keyboard';
import useFocusOut from '../../utils/useFocusOut';
import createSolid from '../../utils/createSolid';
import CurrentColorPicker from './currentColorPicker';
import GradientPicker from './gradientPicker';
import Header from './header';
import useColor from './useColor';
const Container = styled.div`
border-radius: 6px;
background: ${({ theme }) => theme.colors.bg.v8};
color: ${({ theme }) => theme.colors.fg.v1};
width: 240px;
font-family: ${({ theme }) => theme.fonts.body1.family};
font-style: normal;
font-weight: normal;
font-size: 12px;
user-select: none;
display: flex;
flex-direction: column;
align-items: stretch;
&.picker-appear {
opacity: 0.01;
margin-top: -10px;
&.picker-appear-active {
opacity: 1;
margin-top: 0;
transition: 300ms ease-out;
transition-property: opacity, margin-top;
}
}
`;
const Body = styled.div`
border-top: 1px solid ${({ theme }) => theme.colors.fg.v6};
`;
function ColorPicker({
color,
hasGradient,
hasOpacity,
onChange,
onClose,
renderFooter,
}) {
const {
state: { type, stops, currentStopIndex, currentColor, generatedColor },
actions: {
load,
updateCurrentColor,
reverseStops,
selectStop,
addStopAt,
removeCurrentStop,
rotateClockwise,
moveCurrentStopBy,
setToSolid,
setToGradient,
},
} = useColor();
useEffect(() => {
if (generatedColor) {
onChange(generatedColor);
}
}, [color, generatedColor, onChange]);
useEffect(() => {
if (color) {
load(color);
} else {
// If no color given, load solid black
load(createSolid(0, 0, 0));
}
}, [color, load]);
// Detect focus out of color picker (clicks or focuses outside)
const containerRef = useRef();
useFocusOut(containerRef, onClose);
// Re-establish focus when actively exiting by button or key press
const previousFocus = useRef(document.activeElement);
const handleCloseAndRefocus = useCallback(() => {
// Ignore reason: In Jest, focus is always on document.body if not on any specific
// element, so it can never be falsy, as it can be in a real browser.
// istanbul ignore else
if (previousFocus.current) {
previousFocus.current.focus();
}
onClose();
}, [onClose]);
useKeyDownEffect(containerRef, 'esc', handleCloseAndRefocus);
return (
<CSSTransition in appear={true} classNames="picker" timeout={300}>
<Container
role="dialog"
aria-label={__('Color and gradient picker', 'web-stories')}
ref={containerRef}
>
<Header
hasGradient={hasGradient}
type={type}
setToGradient={setToGradient}
setToSolid={setToSolid}
onClose={handleCloseAndRefocus}
/>
{type !== 'solid' && (
<Body>
<GradientPicker
stops={stops}
currentStopIndex={currentStopIndex}
onSelect={selectStop}
onReverse={reverseStops}
onAdd={addStopAt}
onDelete={removeCurrentStop}
onRotate={rotateClockwise}
onMove={moveCurrentStopBy}
/>
</Body>
)}
<Body>
<CurrentColorPicker
color={currentColor}
onChange={updateCurrentColor}
showOpacity={hasOpacity}
/>
{renderFooter && renderFooter(generatedColor)}
</Body>
</Container>
</CSSTransition>
);
}
ColorPicker.propTypes = {
onChange: PropTypes.func.isRequired,
onClose: PropTypes.func,
hasGradient: PropTypes.bool,
hasOpacity: PropTypes.bool,
color: PatternPropType,
renderFooter: PropTypes.func,
};
ColorPicker.defaultProps = {
color: null,
// Ignore reason: Just a default handler
onClose: /* istanbul ignore next */ () => {},
hasGradient: false,
hasOpacity: true,
renderFooter: null,
};
export default ColorPicker;