42 lines
1.4 KiB
JavaScript
42 lines
1.4 KiB
JavaScript
import { getCurrentPage } from '../common/utils';
|
|
const onPageScroll = function (event) {
|
|
const page = getCurrentPage();
|
|
if (!page)
|
|
return;
|
|
const { pageScroller } = page;
|
|
pageScroller === null || pageScroller === void 0 ? void 0 : pageScroller.forEach((scroller) => {
|
|
if (typeof scroller === 'function') {
|
|
scroller(event);
|
|
}
|
|
});
|
|
};
|
|
export default (funcName = 'onScroll') => {
|
|
return Behavior({
|
|
attached() {
|
|
var _a;
|
|
const page = getCurrentPage();
|
|
if (!page)
|
|
return;
|
|
const bindScroller = (_a = this[funcName]) === null || _a === void 0 ? void 0 : _a.bind(this);
|
|
if (bindScroller) {
|
|
this._pageScroller = bindScroller;
|
|
}
|
|
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 !== this._pageScroller)) || [];
|
|
},
|
|
});
|
|
};
|