jiti-meet/react/features/base/premeeting/components/web/InputField.js

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2020-05-20 08:25:31 +00:00
// @flow
import React, { PureComponent } from 'react';
import { getFieldValue } from '../../../react';
type Props = {
/**
* Class name to be appended to the default class list.
*/
className?: string,
/**
* Callback for the onChange event of the field.
*/
onChange: Function,
/**
* Callback to be used when the user hits Enter in the field.
*/
onSubmit?: Function,
/**
* Placeholder text for the field.
*/
placeHolder: string,
/**
* The field type (e.g. text, password...etc).
*/
type: string,
/**
* Externally provided value.
*/
value?: string
};
type State = {
/**
* True if the field is focused, false otherwise.
*/
focused: boolean,
/**
* The current value of the field.
*/
value: string
}
/**
* Implements a pre-styled input field to be used on pre-meeting screens.
*/
export default class InputField extends PureComponent<Props, State> {
static defaultProps: {
className: '',
type: 'text'
};
/**
* Instantiates a new component.
*
* @inheritdoc
*/
constructor(props: Props) {
super(props);
this.state = {
focused: false,
value: props.value || ''
};
this._onBlur = this._onBlur.bind(this);
this._onChange = this._onChange.bind(this);
this._onFocus = this._onFocus.bind(this);
this._onKeyDown = this._onKeyDown.bind(this);
}
/**
* Implements {@code PureComponent.getDerivedStateFromProps}.
*
* @inheritdoc
*/
static getDerivedStateFromProps(props: Props, state: State) {
const { value } = props;
if (state.value !== value) {
return {
...state,
value
};
}
return null;
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}
/**
* Implements {@code PureComponent#render}.
*
* @inheritdoc
*/
render() {
return (
<input
className = { `field ${this.state.focused ? 'focused' : ''} ${this.props.className || ''}` }
onBlur = { this._onBlur }
onChange = { this._onChange }
onFocus = { this._onFocus }
onKeyDown = { this._onKeyDown }
placeholder = { this.props.placeHolder }
type = { this.props.type }
value = { this.state.value } />
);
}
_onBlur: () => void;
/**
* Callback for the onBlur event of the field.
*
* @returns {void}
*/
_onBlur() {
this.setState({
focused: false
});
}
_onChange: Object => void;
/**
* Callback for the onChange event of the field.
*
* @param {Object} evt - The static event.
* @returns {void}
*/
_onChange(evt) {
const value = getFieldValue(evt);
this.setState({
value
});
const { onChange } = this.props;
onChange && onChange(value);
}
_onFocus: () => void;
/**
* Callback for the onFocus event of the field.
*
* @returns {void}
*/
_onFocus() {
this.setState({
focused: true
});
}
_onKeyDown: Object => void;
/**
* Joins the conference on 'Enter'.
*
* @param {Event} event - Key down event object.
* @returns {void}
*/
_onKeyDown(event) {
const { onSubmit } = this.props;
onSubmit && event.key === 'Enter' && onSubmit();
}
}