choerodon-ui/es/input/TextArea.js

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

import _extends from "@babel/runtime/helpers/extends";
import _objectSpread from "@babel/runtime/helpers/objectSpread2";
import _defineProperty from "@babel/runtime/helpers/defineProperty";
import _classCallCheck from "@babel/runtime/helpers/classCallCheck";
import _createClass from "@babel/runtime/helpers/createClass";
import _inherits from "@babel/runtime/helpers/inherits";
import _possibleConstructorReturn from "@babel/runtime/helpers/possibleConstructorReturn";
import _getPrototypeOf from "@babel/runtime/helpers/getPrototypeOf";

function _createSuper(Derived) {
  function isNativeReflectConstruct() {
    if (typeof Reflect === "undefined" || !Reflect.construct) return false;
    if (Reflect.construct.sham) return false;
    if (typeof Proxy === "function") return true;

    try {
      Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));
      return true;
    } catch (e) {
      return false;
    }
  }

  return function () {
    var Super = _getPrototypeOf(Derived),
        result;

    if (isNativeReflectConstruct()) {
      var NewTarget = _getPrototypeOf(this).constructor;

      result = Reflect.construct(Super, arguments, NewTarget);
    } else {
      result = Super.apply(this, arguments);
    }

    return _possibleConstructorReturn(this, result);
  };
}

import React, { Component } from 'react';
import omit from 'lodash/omit';
import classNames from 'classnames';
import calculateNodeHeight from './calculateNodeHeight';
import { getPrefixCls as _getPrefixCls } from '../configure';

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 =
/*#__PURE__*/
function (_Component) {
  _inherits(TextArea, _Component);

  var _super = _createSuper(TextArea);

  function TextArea() {
    var _this;

    _classCallCheck(this, TextArea);

    _this = _super.apply(this, arguments);
    _this.state = {
      textareaStyles: {},
      inputLength: 0,
      focused: false
    };

    _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.handleInput = function () {
      _this.setState({
        inputLength: _this.textAreaRef.value.length
      });
    };

    _this.saveTextAreaRef = function (textArea) {
      _this.textAreaRef = textArea;
    };

    _this.handleFocus = function (e) {
      var onFocus = _this.props.onFocus;

      _this.setState({
        focused: true
      });

      if (onFocus) {
        onFocus(e);
      }
    };

    _this.handleBlur = function (e) {
      var onBlur = _this.props.onBlur;

      _this.setState({
        focused: false
      });

      if (onBlur) {
        onBlur(e);
      }
    };

    return _this;
  }

  _createClass(TextArea, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this.resizeTextarea();

      if (this.textAreaRef.value) {
        this.setState({
          inputLength: this.textAreaRef.value.length
        });
      }

      var autoFocus = this.props.autoFocus;

      if (autoFocus) {
        this.setState({
          focused: true
        });
      }
    }
  }, {
    key: "componentWillReceiveProps",
    value: function componentWillReceiveProps(nextProps) {
      // Re-render with the new content then recalculate the height as required.
      if (this.textAreaRef.value !== nextProps.value) {
        var inputLength = nextProps.value && nextProps.value.length;
        this.setState({
          inputLength: inputLength || 0
        });
      }

      if (nextProps.autoFocus) {
        this.setState({
          focused: true
        });
      }

      var value = this.props.value;

      if (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: "getPrefixCls",
    value: function getPrefixCls() {
      var prefixCls = this.props.prefixCls;
      return _getPrefixCls('input', prefixCls);
    }
  }, {
    key: "getTextAreaClassName",
    value: function getTextAreaClassName() {
      var className = this.props.className;
      var prefixCls = this.getPrefixCls();
      return classNames(prefixCls, "".concat(prefixCls, "-textarea-element"), className);
    }
  }, {
    key: "getWrapperClassName",
    value: function getWrapperClassName() {
      var _classNames;

      var _this$props2 = this.props,
          disabled = _this$props2.disabled,
          label = _this$props2.label,
          border = _this$props2.border;
      var _this$state = this.state,
          inputLength = _this$state.inputLength,
          focused = _this$state.focused;
      var prefixCls = this.getPrefixCls();
      return classNames("".concat(prefixCls, "-wrapper"), "".concat(prefixCls, "-textarea"), (_classNames = {}, _defineProperty(_classNames, "".concat(prefixCls, "-has-value"), inputLength !== 0), _defineProperty(_classNames, "".concat(prefixCls, "-focused"), focused), _defineProperty(_classNames, "".concat(prefixCls, "-disabled"), disabled), _defineProperty(_classNames, "".concat(prefixCls, "-has-label"), !!label), _defineProperty(_classNames, "".concat(prefixCls, "-has-border"), border), _classNames));
    }
  }, {
    key: "getLengthInfo",
    value: function getLengthInfo() {
      var _this$props3 = this.props,
          maxLength = _this$props3.maxLength,
          showLengthInfo = _this$props3.showLengthInfo;
      var prefixCls = this.getPrefixCls();
      var inputLength = this.state.inputLength;
      return maxLength && showLengthInfo || maxLength && maxLength > 0 && inputLength === maxLength ? React.createElement("div", {
        className: "".concat(prefixCls, "-length-info")
      }, "".concat(inputLength, "/").concat(maxLength)) : null;
    }
  }, {
    key: "getLabel",
    value: function getLabel() {
      var _this$props4 = this.props,
          placeholder = _this$props4.placeholder,
          label = _this$props4.label;
      var _this$state2 = this.state,
          inputLength = _this$state2.inputLength,
          focused = _this$state2.focused;

      if (inputLength === 0 && !focused && placeholder) {
        return placeholder;
      }

      return label;
    }
  }, {
    key: "renderFloatLabel",
    value: function renderFloatLabel() {
      var label = this.getLabel();

      if (label) {
        var prefixCls = this.getPrefixCls();
        return React.createElement("div", {
          className: "".concat(prefixCls, "-label-wrapper")
        }, React.createElement("div", {
          className: "".concat(prefixCls, "-label")
        }, label));
      }
    }
  }, {
    key: "render",
    value: function render() {
      var props = this.props;
      var textareaStyles = this.state.textareaStyles;
      var prefixCls = this.getPrefixCls();
      var otherProps = omit(props, ['prefixCls', 'onPressEnter', 'autosize', 'placeholder', 'focused', 'showLengthInfo']);

      var style = _objectSpread({}, props.style, {}, textareaStyles); // Make sure it could be reset when using form.getFieldDecorator


      if ('value' in otherProps) {
        otherProps.value = otherProps.value || '';
      }

      otherProps.onInput = this.handleInput;
      return React.createElement("span", {
        className: this.getWrapperClassName()
      }, React.createElement("div", {
        className: "".concat(prefixCls, "-rendered-wrapper")
      }, React.createElement("textarea", _extends({}, otherProps, {
        className: this.getTextAreaClassName(),
        style: style,
        onKeyDown: this.handleKeyDown,
        onChange: this.handleTextareaChange,
        ref: this.saveTextAreaRef,
        onInput: this.handleInput,
        onBlur: this.handleBlur,
        onFocus: this.handleFocus
      })), this.renderFloatLabel()), this.getLengthInfo());
    }
  }]);

  return TextArea;
}(Component);

export { TextArea as default };
TextArea.displayName = 'TextArea';
TextArea.defaultProps = {
  showLengthInfo: true,
  border: true
};
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