You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

38 lines
1.2 KiB

import { getCurrentPage } from '../common/utils';
const onPageScroll = function (event) {
const page = getCurrentPage();
if (!page)
return;
const { pageScroller } = page;
pageScroller.forEach((scroller) => {
if (typeof scroller === 'function') {
scroller(event);
}
});
};
export default (scroller) => {
return Behavior({
attached() {
const page = getCurrentPage();
if (!page)
return;
const bindScroller = scroller.bind(this);
if (Array.isArray(page.pageScroller)) {
page.pageScroller.push(bindScroller);
}
else {
page.pageScroller =
typeof page.onPageScroll === 'function' ? [page.onPageScroll.bind(page), bindScroller] : [bindScroller];
}
page.onPageScroll = onPageScroll;
},
detached() {
var _a;
const page = getCurrentPage();
if (!page)
return;
page.pageScroller = ((_a = page.pageScroller) === null || _a === void 0 ? void 0 : _a.filter((item) => item !== scroller)) || [];
},
});
};