yunjiwong-slider/es/Element.js

banner-anim animation component for react

import _extends from 'babel-runtime/helpers/extends';
import _typeof from 'babel-runtime/helpers/typeof';
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 React, { Component } from 'react';
import PropTypes from 'prop-types';
import ReactDOM from 'react-dom';
import BgElement from './BgElement';
import TweenOne from 'rc-tween-one';
import ticker from 'rc-tween-one/es/ticker';
import ease from 'tween-functions';
import { getGsapType, isConvert, stylesToCss, checkStyleName } from 'style-utils';
import { currentScrollTop, currentScrollLeft, dataToArray, toArrayChildren } from './utils';

function noop() {}

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

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

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

    _this.onMouseMove = function (e) {
      _this.domRect = _this.dom.getBoundingClientRect();
      _this.enterMouse = _this.enterMouse || { x: _this.domRect.width / 2, y: _this.domRect.height / 2 };
      _this.domWH = {
        w: _this.domRect.width,
        h: _this.domRect.height
      };
      _this.offsetTop = _this.domRect.top + currentScrollTop();
      _this.offsetLeft = _this.domRect.left + currentScrollLeft();
      var mouseXY = {
        x: e.pageX - _this.offsetLeft,
        y: e.pageY - _this.offsetTop
      };
      _this.setTicker(_this.followParallax, mouseXY);
    };

    _this.setTicker = function (followParallax, mouseXY) {
      var callback = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : noop;

      ticker.clear(_this.tickerId);
      _this.tickerId = 'bannerElementTicker' + (Date.now() + Math.random());
      var startFrame = ticker.frame;
      var startX = _this.enterMouse.x;
      var startY = _this.enterMouse.y;
      var duration = followParallax.duration || 450;
      var easeFunc = ease[followParallax.ease || 'easeOutQuad'];
      var start = typeof followParallax.minMove === 'number' ? followParallax.minMove : 0.08;
      ticker.wake(_this.tickerId, function () {
        var moment = (ticker.frame - startFrame) * ticker.perFrame;
        var ratio = easeFunc(moment, start, 1, duration);
        _this.enterMouse.x = startX + (mouseXY.x - startX) * ratio;
        _this.enterMouse.y = startY + (mouseXY.y - startY) * ratio;
        _this.setFollowStyle(_this.domWH);
        if (moment >= duration) {
          ticker.clear(_this.tickerId);
          callback();
        }
      });
    };

    _this.getFollowMouseMove = function () {
      var onMouseMove = void 0;
      if (_this.followParallax) {
        if (_this.followParallax.delay) {
          onMouseMove = !_this.delayTimeout ? null : _this.state.onMouseMove;
          _this.delayTimeout = _this.delayTimeout || ticker.timeout(function () {
            _this.setState({
              onMouseMove: _this.onMouseMove
            });
          }, _this.followParallax.delay);
        } else {
          onMouseMove = _this.onMouseMove;
        }
      }
      return onMouseMove;
    };

    _this.getFollowStyle = function (data, domWH) {
      var style = {};
      dataToArray(data.type).forEach(function (type) {
        var mouseData = _this.enterMouse.x;
        var domData = domWH.w;
        var value = data.value;
        if ((type.indexOf('y') >= 0 || type.indexOf('Y') >= 0) && type !== 'opacity') {
          mouseData = _this.enterMouse.y;
          domData = domWH.h;
        }
        var d = (mouseData - domData / 2) / (domData / 2) * value;
        var _type = getGsapType(type);
        var cssName = isConvert(_type);
        if (cssName === 'transform') {
          var transform = checkStyleName('transform');
          style[transform] = style[transform] || {};
          style[transform][_type] = stylesToCss(_type, d).trim();
        } else if (cssName === 'filter') {
          var filter = checkStyleName('filter');
          style[filter] = style[filter] || {};
          style[filter][_type] = stylesToCss(_type, d).trim();
        } else {
          style[cssName] = stylesToCss(_type, d).trim();
        }
      });
      return style;
    };

    _this.setFollowStyle = function (domWH) {
      _this.doms.map(function (item, i) {
        if (!item) {
          return;
        }
        var data = _this.followParallax.data[i];
        var style = _this.getFollowStyle(data, domWH);
        Object.keys(style).forEach(function (key) {
          if (_typeof(style[key]) === 'object') {
            var styleStr = '';
            Object.keys(style[key]).forEach(function (_key) {
              styleStr += (' ' + _key + '(' + style[key][_key] + ')').trim();
            });
            item.style[key] = styleStr;
            return;
          }
          item.style[key] = key.indexOf('backgroundPosition') >= 0 ? 'calc(' + (data.bgPosition || '0%') + ' + ' + style[key] + ' )' : style[key];
        });
      });
    };

    _this.getChildren = function () {
      return toArrayChildren(_this.props.children).map(function (item) {
        if (item.type === BgElement) {
          return React.cloneElement(item, { show: _this.state.show });
        }
        return item;
      });
    };

    _this.reFollowParallax = function () {
      _this.setTicker(_this.followParallax, {
        x: _this.domRect.width / 2 - _this.offsetLeft,
        y: _this.domRect.height / 2 - _this.offsetTop
      }, function () {
        _this.followParallax = null;
      });
    };

    _this.animEnd = function () {
      var type = _this.state.show ? 'enter' : 'leave';
      _this.props.callBack(type);
      _this.setState({ show: _this.props.show });
    };

    _this.animChildren = function (props, style, bgElem) {
      if (_this.tickerId) {
        ticker.clear(_this.tickerId);
      }
      if (_this.delayTimeout) {
        ticker.clear(_this.delayTimeout);
        _this.delayTimeout = null;
      }
      style.display = 'block';
      props.component = _this.props.component;
      _this.show = _this.state.show;
      style.zIndex = _this.state.show ? 1 : 0;
      props.children = _this.props.show && !_this.props.sync ? bgElem : _this.getChildren();
      var childrenToRender = React.createElement(TweenOne, props);
      var type = _this.state.show ? 'enter' : 'leave';
      return _this.props.animType(childrenToRender, type, _this.props.direction, {
        ease: _this.props.ease,
        duration: _this.props.duration,
        delay: _this.props.delay,
        onComplete: _this.animEnd
      }, _this.props.elemOffset, _this.props.leaveChildHide);
    };

    _this.state = {
      show: _this.props.show
    };
    _this.tickerId = -1;
    _this.enterMouse = null;
    _this.delayTimeout = null;
    _this.show = _this.state.show;
    _this.followParallax = _this.props.followParallax;
    _this.transform = checkStyleName('transform');
    return _this;
  }

  _createClass(Element, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      this.dom = ReactDOM.findDOMNode(this);
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      var show = nextProps.show;
      if (this.tickerId !== -1) {
        ticker.clear(this.tickerId);
        this.tickerId = -1;
      }
      var followParallax = nextProps.followParallax;
      if (this.followParallax && !followParallax) {
        this.reFollowParallax();
      } else {
        this.followParallax = followParallax;
      }
      this.setState({ show: show });
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      if (this.followParallax) {
        this.doms = this.followParallax.data.map(function (item) {
          return document.getElementById(item.id);
        });
      }
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      ticker.clear(this.timeoutID);
      ticker.clear(this.delayTimeout);
      this.delayTimeout = -1;
      this.timeoutID = -1;
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var props = _extends({}, this.props);
      var style = _extends({}, props.style);
      style.display = props.show ? 'block' : 'none';
      style.position = 'absolute';
      style.width = '100%';
      props.style = style;
      props.className = ('banner-anim-elem ' + (this.props.prefixCls || '')).trim();
      var bgElem = toArrayChildren(this.props.children).filter(function (item) {
        return item.type.isBannerAnimBgElement;
      }).map(function (item) {
        return React.cloneElement(item, { show: _this2.state.show });
      });
      ['prefixCls', 'callBack', 'animType', 'duration', 'delay', 'ease', 'elemOffset', 'followParallax', 'show', 'type', 'direction', 'leaveChildHide', 'sync'].forEach(function (key) {
        return delete props[key];
      });
      if (this.show === this.state.show) {
        style[this.transform] = null;
        if (!this.state.show) {
          this.enterMouse = null;
          return React.createElement(TweenOne, props, bgElem);
        }
        if (this.props.followParallax) {
          props.onMouseMove = this.getFollowMouseMove();
        }
        return React.createElement(TweenOne, props, this.getChildren());
      }
      return this.animChildren(props, style, bgElem);
    }
  }]);

  return Element;
}(Component);

Element.propTypes = {
  children: PropTypes.any,
  style: PropTypes.object,
  prefixCls: PropTypes.string,
  component: PropTypes.any,
  elemOffset: PropTypes.object,
  type: PropTypes.string,
  animType: PropTypes.func,
  ease: PropTypes.string,
  duration: PropTypes.number,
  delay: PropTypes.number,
  direction: PropTypes.string,
  callBack: PropTypes.func,
  followParallax: PropTypes.any,
  show: PropTypes.bool,
  leaveChildHide: PropTypes.bool,
  sync: PropTypes.bool
};
Element.defaultProps = {
  component: 'div',
  callBack: noop
};

Element.BgElement = BgElement;
Element.isBannerAnimElement = true;
export default Element;