magic-hover/dist/index.js

Transform perspective/tilt/rotate effect for nested react components.

"use strict";

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

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 _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 _react = require("react");

var _react2 = _interopRequireDefault(_react);

var _reactDom = require("react-dom");

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

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 MagicHover = function (_Component) {
  _inherits(MagicHover, _Component);

  function MagicHover(props) {
    _classCallCheck(this, MagicHover);

    var _this = _possibleConstructorReturn(this, (MagicHover.__proto__ || Object.getPrototypeOf(MagicHover)).call(this, props));

    _this.state = {
      style: {}
    };
    var defaultSettings = {
      reverse: true,
      rotate: 0,
      max: 35,
      perspective: 1000,
      easing: "cubic-bezier(.03,.98,.52,.99)",
      scale: { x: 1, y: 1, z: 1 },
      translate: { x: 0, y: 0 },
      speed: "1000",
      transition: true,
      axis: null,
      reset: true
    };
    _this.width = null;
    _this.height = null;
    _this.left = null;
    _this.top = null;
    _this.transitionTimeout = null;
    _this.updateCall = null;
    _this.element = null;
    _this.settings = _extends({}, defaultSettings, _this.props.options);
    _this.reverse = _this.settings.reverse ? -1 : 1;
    _this.handleMouseEnter = _this.handleMouseEnter.bind(_this, _this.props.handleMouseEnter);
    _this.handleMouseMove = _this.handleMouseMove.bind(_this, _this.props.handleMouseMove);
    _this.handleMouseLeave = _this.handleMouseLeave.bind(_this, _this.props.handleMouseLeave);
    return _this;
  }

  _createClass(MagicHover, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this.element = (0, _reactDom.findDOMNode)(this);
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      clearTimeout(this.transitionTimeout);
      cancelAnimationFrame(this.updateCall);
    }
  }, {
    key: "handleMouseEnter",
    value: function handleMouseEnter() {
      var cb = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : function () {};
      var e = arguments[1];

      this.updateElementPosition();
      this.setTransition();
      return cb(e);
    }
  }, {
    key: "reset",
    value: function reset() {
      var _this2 = this;

      window.requestAnimationFrame(function () {
        _this2.setState(function (prevState) {
          return {
            style: _extends({}, prevState.style, {
              transform: "perspective(" + _this2.settings.perspective + "px) rotateX(0deg) rotateY(0deg) scale3d(1, 1, 1) translate(0, 0) rotate(0)"
            })
          };
        });
      });
    }
  }, {
    key: "handleMouseMove",
    value: function handleMouseMove() {
      var cb = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : function () {};
      var e = arguments[1];

      e.persist();
      if (this.updateCall !== null) {
        window.cancelAnimationFrame(this.updateCall);
      }
      this.event = e;
      this.updateCall = requestAnimationFrame(this.update.bind(this, e));
      return cb(e);
    }
  }, {
    key: "setTransition",
    value: function setTransition() {
      var _this3 = this;

      clearTimeout(this.transitionTimeout);
      this.setState(function (prevState) {
        return {
          style: _extends({}, prevState.style, {
            transition: _this3.settings.speed + "ms " + _this3.settings.easing
          })
        };
      });
      this.transitionTimeout = setTimeout(function () {
        _this3.setState(function (prevState) {
          return {
            style: _extends({}, prevState.style, {
              transition: ""
            })
          };
        });
      }, this.settings.speed);
    }
  }, {
    key: "handleMouseLeave",
    value: function handleMouseLeave() {
      var cb = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : function () {};
      var e = arguments[1];

      this.setTransition();
      if (this.settings.reset) {
        this.reset();
      }
      return cb(e);
    }
  }, {
    key: "getValues",
    value: function getValues(e) {
      var x = (e.nativeEvent.clientX - this.left) / this.width;
      var y = (e.nativeEvent.clientY - this.top) / this.height;
      var _x = Math.min(Math.max(x, 0), 1);
      var _y = Math.min(Math.max(y, 0), 1);
      var tiltX = (this.reverse * (this.settings.max / 2 - _x * this.settings.max)).toFixed(2);
      var tiltY = (this.reverse * (_y * this.settings.max - this.settings.max / 2)).toFixed(2);
      var percentageX = _x * 100;
      var percentageY = _y * 100;
      return {
        tiltX: tiltX,
        tiltY: tiltY,
        percentageX: percentageX,
        percentageY: percentageY
      };
    }
  }, {
    key: "updateElementPosition",
    value: function updateElementPosition() {
      var rect = this.element.getBoundingClientRect();
      this.width = this.element.offsetWidth;
      this.height = this.element.offsetHeight;
      this.left = rect.left;
      this.top = rect.top;
    }
  }, {
    key: "update",
    value: function update(e) {
      var _this4 = this;

      var values = this.getValues(e);
      this.setState(function (prevState) {
        return {
          style: _extends({}, prevState.style, {
            transform: "\n        perspective(" + _this4.settings.perspective + "px) \n        rotateX(" + (-_this4.settings.axis === "x" ? 0 : values.tiltY / 2) + "deg) \n        rotateY(" + (-_this4.settings.axis === "y" ? 0 : values.tiltX / 2) + "deg)\n        scale3d(" + _this4.settings.scale.x + ", " + _this4.settings.scale.y + ", " + _this4.settings.scale.z + ")\n        translate(" + _this4.settings.translate.x + "px, " + _this4.settings.translate.y + "px)\n        rotate(" + _this4.settings.rotate + "deg)\n         "
          })
        };
      });
      this.updateCall = null;
    }
  }, {
    key: "render",
    value: function render() {
      var style = _extends({}, this.props.style, this.state.style);
      return _react2.default.createElement(
        "div",
        {
          style: style,
          className: this.props.className,
          onMouseEnter: this.handleMouseEnter,
          onMouseMove: this.handleMouseMove,
          onMouseLeave: this.handleMouseLeave
        },
        this.props.children
      );
    }
  }]);

  return MagicHover;
}(_react.Component);

exports.default = MagicHover;