backpack-ui/dist/components/textarea/index.js

Lonely Planet's Components

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = require("babel-runtime/core-js/object/get-prototype-of");

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck");

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require("babel-runtime/helpers/createClass");

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require("babel-runtime/helpers/possibleConstructorReturn");

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require("babel-runtime/helpers/inherits");

var _inherits3 = _interopRequireDefault(_inherits2);

var _extends2 = require("babel-runtime/helpers/extends");

var _extends3 = _interopRequireDefault(_extends2);

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _propTypes = require("prop-types");

var _propTypes2 = _interopRequireDefault(_propTypes);

var _radium = require("radium");

var _radium2 = _interopRequireDefault(_radium);

var _propTypes3 = require("../../utils/propTypes");

var _propTypes4 = _interopRequireDefault(_propTypes3);

var _input = require("../input");

var _input2 = _interopRequireDefault(_input);

var _validReactAttributes = require("../../utils/validReactAttributes");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var styles = (0, _extends3.default)({}, _input2.default.styles, {
  resize: "vertical"
});

var Textarea = function (_React$Component) {
  (0, _inherits3.default)(Textarea, _React$Component);

  function Textarea(props) {
    (0, _classCallCheck3.default)(this, Textarea);

    var _this = (0, _possibleConstructorReturn3.default)(this, (Textarea.__proto__ || (0, _getPrototypeOf2.default)(Textarea)).call(this, props));

    _this.state = {
      height: _input2.default.height,
      hideOverflow: true,
      currentValue: props.value
    };

    _this.onInput = _this.onInput.bind(_this);
    _this.disableEnterKey = _this.disableEnterKey.bind(_this);
    _this.autoGrow = _this.autoGrow.bind(_this);
    _this.handleChange = _this.handleChange.bind(_this);
    return _this;
  }

  (0, _createClass3.default)(Textarea, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      if (this.props.autofocus) {
        this.textarea.focus();
      }

      if (this.props.autogrow) {
        this.autoGrow();
      }

      if (this.props.disableEnter && this.props.autogrow) {
        document.addEventListener("keydown", this.disableEnterKey);
      }
    }
  }, {
    key: "shouldComponentUpdate",
    value: function shouldComponentUpdate(nextProps, nextState) {
      // eslint-disable-line class-methods-use-this
      return nextState.height !== nextState.maxHeight;
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate() {
      if (this.props.disableEnter && this.props.autogrow) {
        document.addEventListener("keydown", this.disableEnterKey);
      } else {
        document.removeEventListener("keydown", this.disableEnterKey);
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      if (this.props.autofocus) {
        this.textarea.blur();
      }

      if (this.props.disableEnter && this.props.autogrow) {
        document.removeEventListener("keydown", this.disableEnterKey);
      }
    }
  }, {
    key: "onInput",
    value: function onInput() {
      if (this.props.onInput && typeof this.props.onInput === "function") {
        this.props.onInput();
      }

      if (this.props.autogrow) {
        this.autoGrow();
      }
    }
  }, {
    key: "disableEnterKey",
    value: function disableEnterKey(event) {
      var hasFocus = this.textarea === document.activeElement || false;

      if (hasFocus && event.keyCode === 13) {
        event.preventDefault();
      }
    }
  }, {
    key: "handleChange",
    value: function handleChange(e) {
      if (this.props.onChange && typeof this.props.onChange === "function") {
        this.props.onChange(e);
      }
      this.setState({ currentValue: e.target.value });
    }
  }, {
    key: "autoGrow",
    value: function autoGrow() {
      var _this2 = this;

      var maxHeight = this.props.maxLines * _input2.default.lineHeight + _input2.default.height;

      this.textarea.style.height = _input2.default.styles.height;

      this.setState({
        height: Math.min(this.textarea.scrollHeight, maxHeight),
        hideOverflow: Math.min(this.textarea.scrollHeight, maxHeight) < maxHeight
      }, function () {
        _this2.textarea.style.height = _this2.state.height + "px";
        _this2.textarea.style.overflow = _this2.state.hideOverflow ? "hidden" : null;
      });
    }
  }, {
    key: "render",
    value: function render() {
      var _this3 = this;

      var sanitizedProps = (0, _validReactAttributes.validReactAttributes)(this.props);

      return _react2.default.createElement("textarea", (0, _extends3.default)({}, sanitizedProps, {
        value: this.state.currentValue,
        ref: function ref(node) {
          _this3.textarea = node;
        },
        onInput: this.onInput,
        onChange: this.handleChange,
        style: [styles, !this.props.autogrow && {
          height: "auto"
        }, this.props.autogrow && {
          overflow: "hidden",
          resize: "none"
        }, this.props.style]
      }));
    }
  }]);
  return Textarea;
}(_react2.default.Component);

Textarea.propTypes = {
  autogrow: _propTypes2.default.bool,
  autofocus: _propTypes2.default.bool,
  maxLines: _propTypes2.default.number,
  onInput: _propTypes2.default.func,
  disableEnter: _propTypes2.default.bool,
  style: _propTypes4.default.style,
  onChange: _propTypes2.default.func,
  value: _propTypes2.default.string
};

Textarea.defaultProps = {
  autogrow: false,
  autofocus: false,
  maxLines: 3,
  onInput: null,
  disableEnter: false,
  style: null,
  onChange: null
};

exports.default = (0, _radium2.default)(Textarea);