24 lines
477 B
TypeScript
24 lines
477 B
TypeScript
import { router } from "../router";
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class Scroller {
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list: Map<string, ((top: number) => void)[]> = new Map();
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// 触发滚动
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emit(top: number) {
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const cbs = this.list.get(router.path()) ?? [];
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cbs.forEach((cb) => {
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cb(top);
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});
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}
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// 监听页面滚动
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on(callback: (top: number) => void) {
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const path = router.path();
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const cbs = this.list.get(path) ?? [];
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cbs.push(callback);
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this.list.set(path, cbs);
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}
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}
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export const scroller = new Scroller();
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