// +----------------------------------------------------------------------
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// | CMS [ CMS赋能开发者，助力企业发展 ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2016~2021 https://www.CMS.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed CMS并不是自由软件，未经许可不能去掉CMS相关版权
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// +----------------------------------------------------------------------
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// | Author: CMS Team <admin@CMS.com>
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// +----------------------------------------------------------------------
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const events = [];
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const $scroll = function(dom, fn) {
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events.push({ dom, fn });
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fn._index = events.length - 1;
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};
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$scroll.remove = function(fn) {
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fn._index && events.splice(fn._index, 1);
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};
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//上拉加载；
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const Scroll = {
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addHandler: function(element, type, handler) {
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if (element.addEventListener)
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element.addEventListener(type, handler, false);
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else if (element.attachEvent) element.attachEvent("on" + type, handler);
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else element["on" + type] = handler;
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},
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listenTouchDirection: function() {
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this.addHandler(window, "scroll", function() {
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const wh = window.innerHeight,
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st = window.scrollY;
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events
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.filter(e => e.dom.scrollHeight && e.dom.scrollHeight > 0)
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.forEach(e => {
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var dh = e.dom.scrollHeight;
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var s = Math.ceil((st / (dh - wh)) * 100);
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if (s > 85) e.fn();
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});
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});
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}
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};
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Scroll.listenTouchDirection();
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export default $scroll;
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export { Scroll };
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