(window["webpackJsonp_name_"] = window["webpackJsonp_name_"] || []).push([[19],{

/***/ 127:
/***/ (function(module, exports, __webpack_require__) {

"use strict";


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

var _global = __webpack_require__(52);

var _global2 = _interopRequireDefault(_global);

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

function FadeBox(elems) {
    [].forEach.call(elems, function (el) {
        var currentOpacity = 0;
        var setOpacity = function setOpacity(top, bottom) {
            if (top >= _global2.default.wh * .75 && top <= _global2.default.wh) {
                currentOpacity = (_global2.default.wh - top) / (_global2.default.wh - _global2.default.wh * .75);
            } else if (bottom <= _global2.default.wh * .25 && bottom >= 0) {
                currentOpacity = bottom / (_global2.default.wh - _global2.default.wh * .75);
            }
            if (bottom < 0 || top > _global2.default.wh) {
                currentOpacity = 0;
            }
            if (top < _global2.default.wh * .75 && top > _global2.default.wh * .25 || bottom < _global2.default.wh * .75 && bottom > _global2.default.wh * .25) {
                currentOpacity = 1;
            }
            if (top < 0 && bottom > _global2.default.wh) {
                currentOpacity = 1;
            }
            if (top >= 0 && top <= _global2.default.wh) {
                currentOpacity = 1;
            }
            if (bottom >= _global2.default.wh && top < _global2.default.wh * .75) {
                currentOpacity = 1;
            }
            if (top <= 0 && bottom >= _global2.default.wh * .25) {
                currentOpacity = 1;
            }
            el.style.opacity = currentOpacity;
        };
        var pos = el.getBoundingClientRect();
        setOpacity(pos.top, pos.bottom);
        window.addEventListener('resize', function () {
            var pos = el.getBoundingClientRect();
            setOpacity(pos.top, pos.bottom);
        });
        _global2.default.scrollBox && _global2.default.scrollBox.addEventListener('scroll', function () {
            var pos = el.getBoundingClientRect();
            setOpacity(pos.top, pos.bottom);
        });
    });
}

/***/ })

}]);