/
TextArea.tsx
159 lines (135 loc) · 4.35 KB
/
TextArea.tsx
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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
import * as React from 'react';
import omit from 'omit.js';
import classNames from 'classnames';
import { polyfill } from 'react-lifecycles-compat';
import ResizeObserver from 'rc-resize-observer';
import calculateNodeHeight from './calculateNodeHeight';
import { ConfigConsumer, ConfigConsumerProps } from '../config-provider';
import raf from '../_util/raf';
import warning from '../_util/warning';
export interface AutoSizeType {
minRows?: number;
maxRows?: number;
}
export type HTMLTextareaProps = React.TextareaHTMLAttributes<HTMLTextAreaElement>;
export interface TextAreaProps extends HTMLTextareaProps {
prefixCls?: string;
/* deprecated, use autoSize instead */
autosize?: boolean | AutoSizeType;
autoSize?: boolean | AutoSizeType;
onPressEnter?: React.KeyboardEventHandler<HTMLTextAreaElement>;
}
export interface TextAreaState {
textareaStyles?: React.CSSProperties;
/** We need add process style to disable scroll first and then add back to avoid unexpected scrollbar */
resizing?: boolean;
}
class TextArea extends React.Component<TextAreaProps, TextAreaState> {
nextFrameActionId: number;
resizeFrameId: number;
state = {
textareaStyles: {},
resizing: false,
};
private textAreaRef: HTMLTextAreaElement;
componentDidMount() {
this.resizeTextarea();
}
componentDidUpdate(prevProps: TextAreaProps) {
// Re-render with the new content then recalculate the height as required.
if (prevProps.value !== this.props.value) {
this.resizeTextarea();
}
}
componentWillUnmount() {
raf.cancel(this.nextFrameActionId);
raf.cancel(this.resizeFrameId);
}
saveTextAreaRef = (textArea: HTMLTextAreaElement) => {
this.textAreaRef = textArea;
};
handleTextareaChange = (e: React.ChangeEvent<HTMLTextAreaElement>) => {
if (!('value' in this.props)) {
this.resizeTextarea();
}
const { onChange } = this.props;
if (onChange) {
onChange(e);
}
};
handleKeyDown = (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
const { onPressEnter, onKeyDown } = this.props;
if (e.keyCode === 13 && onPressEnter) {
onPressEnter(e);
}
if (onKeyDown) {
onKeyDown(e);
}
};
resizeOnNextFrame = () => {
raf.cancel(this.nextFrameActionId);
this.nextFrameActionId = raf(this.resizeTextarea);
};
resizeTextarea = () => {
const autoSize = this.props.autoSize || this.props.autosize;
if (!autoSize || !this.textAreaRef) {
return;
}
const { minRows, maxRows } = autoSize as AutoSizeType;
const textareaStyles = calculateNodeHeight(this.textAreaRef, false, minRows, maxRows);
this.setState({ textareaStyles, resizing: true }, () => {
raf.cancel(this.resizeFrameId);
this.resizeFrameId = raf(() => {
this.setState({ resizing: false });
});
});
};
focus() {
this.textAreaRef.focus();
}
blur() {
this.textAreaRef.blur();
}
renderTextArea = ({ getPrefixCls }: ConfigConsumerProps) => {
const { textareaStyles, resizing } = this.state;
const { prefixCls: customizePrefixCls, className, disabled, autoSize, autosize } = this.props;
const { ...props } = this.props;
const otherProps = omit(props, ['prefixCls', 'onPressEnter', 'autoSize', 'autosize']);
const prefixCls = getPrefixCls('input', customizePrefixCls);
const cls = classNames(prefixCls, className, {
[`${prefixCls}-disabled`]: disabled,
});
warning(
autosize === undefined,
'Input.TextArea',
'autosize is deprecated, please use autoSize instead.',
);
const style = {
...props.style,
...textareaStyles,
...(resizing ? { overflow: 'hidden' } : null),
};
// Fix https://github.com/ant-design/ant-design/issues/6776
// Make sure it could be reset when using form.getFieldDecorator
if ('value' in otherProps) {
otherProps.value = otherProps.value || '';
}
return (
<ResizeObserver onResize={this.resizeOnNextFrame} disabled={!(autoSize || autosize)}>
<textarea
{...otherProps}
className={cls}
style={style}
onKeyDown={this.handleKeyDown}
onChange={this.handleTextareaChange}
ref={this.saveTextAreaRef}
/>
</ResizeObserver>
);
};
render() {
return <ConfigConsumer>{this.renderTextArea}</ConfigConsumer>;
}
}
polyfill(TextArea);
export default TextArea;