-
Notifications
You must be signed in to change notification settings - Fork 179
/
opacityPreview.js
100 lines (88 loc) · 2.67 KB
/
opacityPreview.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
/*
* 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 { useState, useCallback, useEffect, useRef } from 'react';
import styled from 'styled-components';
import PropTypes from 'prop-types';
/**
* WordPress dependencies
*/
import { _x, __ } from '@wordpress/i18n';
/**
* Internal dependencies
*/
import { PatternPropType } from '../../../types';
import useFocusAndSelect from '../../../utils/useFocusAndSelect';
import { MULTIPLE_VALUE } from '../';
import getPreviewText from './getPreviewText';
import getPreviewOpacity from './getPreviewOpacity';
import ColorBox from './colorBox';
const Input = styled(ColorBox).attrs({
as: 'input',
})`
border: none !important;
margin-left: 6px;
width: 54px;
line-height: 32px;
text-align: center;
visibility: ${({ isVisible }) => (isVisible ? 'visible' : 'hidden')};
`;
function OpacityPreview({ value, onChange }) {
const hasPreviewText =
value !== MULTIPLE_VALUE && Boolean(getPreviewText(value));
const postfix = _x('%', 'Percentage', 'web-stories');
const [inputValue, setInputValue] = useState('');
const ref = useRef();
const { focused, handleFocus, handleBlur } = useFocusAndSelect(ref);
// Allow any input, but only persist non-NaN values up-chain
const handleChange = useCallback(
(evt) => {
setInputValue(evt.target.value);
const val = parseInt(evt.target.value) / 100;
if (!isNaN(val)) {
onChange(val);
}
},
[onChange]
);
const updateFromValue = useCallback(
() => setInputValue(getPreviewOpacity(value)),
[value]
);
useEffect(() => updateFromValue(), [updateFromValue, value]);
return (
<Input
ref={ref}
type="text"
aria-label={__('Opacity', 'web-stories')}
isVisible={hasPreviewText}
onBlur={() => {
handleBlur();
updateFromValue();
}}
onFocus={handleFocus}
onChange={handleChange}
value={`${inputValue}${focused ? '' : postfix}`}
/>
);
}
OpacityPreview.propTypes = {
value: PropTypes.oneOfType([PatternPropType, PropTypes.string]),
onChange: PropTypes.func.isRequired,
};
export default OpacityPreview;