react-paper-ripple/lib/PaperRipple.js

Paper ripple animations inspired by Google Material Design.

'use strict';

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

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

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

var _propTypes2 = _interopRequireDefault(_propTypes);

var _reactDocumentEvents = require('react-document-events');

var _reactDocumentEvents2 = _interopRequireDefault(_reactDocumentEvents);

var _reactMotion = require('react-motion');

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

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var eventTypes = {
  mousedown: 'MouseDown',
  touchstart: 'touchStart'
};

var waveContainerStyles = {
  position: 'absolute',
  top: 0,
  right: 0,
  bottom: 0,
  left: 0,
  overflow: 'hidden'
};

function preventDefault(e) {
  e.preventDefault();
}

function Wave(_ref) {
  var data = _ref.data,
      _ref$style = _ref.style,
      scale = _ref$style.scale,
      opacity = _ref$style.opacity;

  return _react2.default.createElement('div', {
    className: 'paper-ripple-wave',
    style: _extends({}, data, {
      WebkitTransform: 'scale(' + scale + ', ' + scale + ')',
      transform: 'scale3d(' + scale + ', ' + scale + ', 1)',
      opacity: opacity
    })
  });
}

var PaperRipple = function (_Component) {
  _inherits(PaperRipple, _Component);

  function PaperRipple() {
    var _ref2;

    var _temp, _this, _ret;

    _classCallCheck(this, PaperRipple);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, (_ref2 = PaperRipple.__proto__ || Object.getPrototypeOf(PaperRipple)).call.apply(_ref2, [this].concat(args))), _this), _this.state = {
      waves: []
    }, _this._willLeave = function () {
      var rmConfig = _this.props.rmConfig;

      return {
        scale: (0, _reactMotion.spring)(1, rmConfig),
        opacity: (0, _reactMotion.spring)(0, rmConfig)
      };
    }, _this._addWave = function (e) {
      if (_this._waveAdded) return;

      var _this$props = _this.props,
          growRatio = _this$props.growRatio,
          center = _this$props.center,
          color = _this$props.color,
          rmConfig = _this$props.rmConfig;

      var key = Date.now().toString();
      var waves = [].concat(_toConsumableArray(_this.state.waves));
      var rect = _this._parentNode.getBoundingClientRect();
      var offsetTop = rect.top + (window ? window.pageYOffset : 0);
      var offsetLeft = rect.left + (window ? window.pageXOffset : 0);
      var size = Math.max(rect.width, rect.height) * growRatio;
      var halfSize = size / 2;
      var data = {
        width: size,
        height: size,
        backgroundColor: color,
        borderRadius: '100%',
        position: 'absolute',
        pointerEvents: 'none'
      };

      _this._waveAdded = true;
      _this._currentKey = key;

      if (center) {
        data.top = rect.height / 2;
        data.left = rect.width / 2;
        data.marginTop = -halfSize;
        data.marginLeft = -halfSize;
      } else {
        var _ref3 = e.touches && e.touches[0] || e,
            pageX = _ref3.pageX,
            pageY = _ref3.pageY;

        data.top = pageY - offsetTop - halfSize;
        data.left = pageX - offsetLeft - halfSize;
      }

      waves.push({
        key: key,
        data: data,
        style: {
          scale: (0, _reactMotion.spring)(1, rmConfig),
          opacity: (0, _reactMotion.spring)(1, rmConfig)
        }
      });

      _this.setState({ waves: waves });
    }, _this._removeWave = function () {
      if (_this._waveAdded) {
        _this.setState({
          waves: _this.state.waves.filter(function (wave) {
            return wave.key !== _this._currentKey;
          })
        });
        _this._waveAdded = false;
      }
    }, _this._handleEvent = function (e) {
      var eventType = eventTypes[e.type];
      var propEvent = _this.props['on' + eventType];

      _this._addWave(e);

      if (typeof propEvent === 'function') {
        propEvent(e);
      }
    }, _this._handleRef = function (node) {
      _this._parentNode = node && node.parentNode;
    }, _temp), _possibleConstructorReturn(_this, _ret);
  }

  _createClass(PaperRipple, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      if (this.props.filled) {
        this._addWave();
      }
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      if (!this.props.filled && nextProps.filled) {
        this._addWave();
      } else if (this.props.filled && !nextProps.filled) {
        this._removeWave();
      }
    }
  }, {
    key: '_willEnter',
    value: function _willEnter() {
      return {
        scale: 0,
        opacity: 1
      };
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var _props = this.props,
          center = _props.center,
          color = _props.color,
          growRatio = _props.growRatio,
          opacity = _props.opacity,
          filled = _props.filled,
          rmConfig = _props.rmConfig,
          restProps = _objectWithoutProperties(_props, ['center', 'color', 'growRatio', 'opacity', 'filled', 'rmConfig']);

      return _react2.default.createElement(
        _reactMotion.TransitionMotion,
        {
          styles: this.state.waves,
          willEnter: this._willEnter,
          willLeave: this._willLeave
        },
        function (interpolatedWaves) {
          return _react2.default.createElement(
            'div',
            _extends({
              ref: _this2._handleRef,
              className: 'paper-ripple',
              style: _extends({}, waveContainerStyles, { opacity: opacity }),
              onMouseDown: _this2._handleEvent,
              onTouchStart: _this2._handleEvent
            }, restProps),
            interpolatedWaves.map(function (config) {
              return _react2.default.createElement(Wave, config);
            }),
            _react2.default.createElement(_reactDocumentEvents2.default, {
              onMouseup: _this2._removeWave,
              onTouchEnd: _this2._removeWave,
              onTouchCancel: _this2._removeWave
            })
          );
        }
      );
    }
  }]);

  return PaperRipple;
}(_react.Component);

PaperRipple.propTypes = {
  center: _propTypes2.default.bool,
  color: _propTypes2.default.string,
  opacity: _propTypes2.default.number,
  growRatio: _propTypes2.default.number,
  filled: _propTypes2.default.bool,
  rmConfig: _propTypes2.default.objectOf(_propTypes2.default.number)
};
PaperRipple.defaultProps = {
  center: false,
  color: '#fff',
  opacity: 0.25,
  growRatio: 2.25,
  filled: null,
  rmConfig: { stiffness: 100, damping: 20 }
};
exports.default = PaperRipple;