antd/es/input/TextArea.js

An enterprise-class UI design language and React-based implementation

import _extends from 'babel-runtime/helpers/extends';
import _defineProperty from 'babel-runtime/helpers/defineProperty';
import _classCallCheck from 'babel-runtime/helpers/classCallCheck';
import _createClass from 'babel-runtime/helpers/createClass';
import _possibleConstructorReturn from 'babel-runtime/helpers/possibleConstructorReturn';
import _inherits from 'babel-runtime/helpers/inherits';
import * as React from 'react';
import omit from 'omit.js';
import classNames from 'classnames';
import calculateNodeHeight from './calculateNodeHeight';
function onNextFrame(cb) {
    if (window.requestAnimationFrame) {
        return window.requestAnimationFrame(cb);
    }
    return window.setTimeout(cb, 1);
}
function clearNextFrameAction(nextFrameId) {
    if (window.cancelAnimationFrame) {
        window.cancelAnimationFrame(nextFrameId);
    } else {
        window.clearTimeout(nextFrameId);
    }
}

var TextArea = function (_React$Component) {
    _inherits(TextArea, _React$Component);

    function TextArea() {
        _classCallCheck(this, TextArea);

        var _this = _possibleConstructorReturn(this, (TextArea.__proto__ || Object.getPrototypeOf(TextArea)).apply(this, arguments));

        _this.state = {
            textareaStyles: {}
        };
        _this.resizeTextarea = function () {
            var autosize = _this.props.autosize;

            if (!autosize || !_this.textAreaRef) {
                return;
            }
            var minRows = autosize ? autosize.minRows : null;
            var maxRows = autosize ? autosize.maxRows : null;
            var textareaStyles = calculateNodeHeight(_this.textAreaRef, false, minRows, maxRows);
            _this.setState({ textareaStyles: textareaStyles });
        };
        _this.handleTextareaChange = function (e) {
            if (!('value' in _this.props)) {
                _this.resizeTextarea();
            }
            var onChange = _this.props.onChange;

            if (onChange) {
                onChange(e);
            }
        };
        _this.handleKeyDown = function (e) {
            var _this$props = _this.props,
                onPressEnter = _this$props.onPressEnter,
                onKeyDown = _this$props.onKeyDown;

            if (e.keyCode === 13 && onPressEnter) {
                onPressEnter(e);
            }
            if (onKeyDown) {
                onKeyDown(e);
            }
        };
        _this.saveTextAreaRef = function (textArea) {
            _this.textAreaRef = textArea;
        };
        return _this;
    }

    _createClass(TextArea, [{
        key: 'componentDidMount',
        value: function componentDidMount() {
            this.resizeTextarea();
        }
    }, {
        key: 'componentWillReceiveProps',
        value: function componentWillReceiveProps(nextProps) {
            // Re-render with the new content then recalculate the height as required.
            if (this.props.value !== nextProps.value) {
                if (this.nextFrameActionId) {
                    clearNextFrameAction(this.nextFrameActionId);
                }
                this.nextFrameActionId = onNextFrame(this.resizeTextarea);
            }
        }
    }, {
        key: 'focus',
        value: function focus() {
            this.textAreaRef.focus();
        }
    }, {
        key: 'blur',
        value: function blur() {
            this.textAreaRef.blur();
        }
    }, {
        key: 'getTextAreaClassName',
        value: function getTextAreaClassName() {
            var _props = this.props,
                prefixCls = _props.prefixCls,
                className = _props.className,
                disabled = _props.disabled;

            return classNames(prefixCls, className, _defineProperty({}, prefixCls + '-disabled', disabled));
        }
    }, {
        key: 'render',
        value: function render() {
            var props = this.props;
            var otherProps = omit(props, ['prefixCls', 'onPressEnter', 'autosize']);
            var style = _extends({}, props.style, this.state.textareaStyles);
            // 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 React.createElement('textarea', _extends({}, otherProps, { className: this.getTextAreaClassName(), style: style, onKeyDown: this.handleKeyDown, onChange: this.handleTextareaChange, ref: this.saveTextAreaRef }));
        }
    }]);

    return TextArea;
}(React.Component);

export default TextArea;

TextArea.defaultProps = {
    prefixCls: 'ant-input'
};