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36 lines
702 B
Plaintext
36 lines
702 B
Plaintext
11 months ago
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/**
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* @description 记录 scrollTop
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* @author fangzhicong
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*/
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import Cache from '../../../../utils/data-structure/cache';
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import Editor from '../../../index';
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import { ScrollItem } from '../type';
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export default class ScrollCache extends Cache<ScrollItem> {
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editor: Editor;
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/**
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* 上一次的 scrollTop
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*/
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private last;
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/**
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* 编辑区容器元素节点
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*/
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private target;
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constructor(editor: Editor);
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/**
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* 给编辑区容器绑定 scroll 事件
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*/
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observe(): void;
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/**
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* 保存 scrollTop 值
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*/
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save(): this;
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/**
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* 撤销
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*/
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revoke(): boolean;
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/**
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* 恢复
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*/
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restore(): boolean;
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}
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