PingChuan
34 lines
1005 B
TypeScript
34 lines
1005 B
TypeScript
/**
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* Collabora 导航/跳转功能模块
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*
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* @encoding UTF-8
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*/
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import { sendUnoCommand } from '../Uno';
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/**
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* 滚动到文档开头 (带焦点请求)
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* @param iframeWindow - iframe 的 contentWindow
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*/
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export async function unoScrollToTop(iframeWindow: Window): Promise<void> {
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// 1. 先请求 iframe 获取焦点
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const focusMessage = {
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MessageId: 'custompostMessage',
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Values: {
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Command: 'REQUEST_FOCUS',
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Args: {},
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},
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};
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console.log('[custompostMessage] 请求焦点 (滚动到顶部)');
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iframeWindow.postMessage(JSON.stringify(focusMessage), '*');
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// 2. 等待焦点激活
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await new Promise((resolve) => setTimeout(resolve, 100));
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// 3. 发送滚动命令，要发三次，有时候卡在表格里面就是需要多发几次
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sendUnoCommand(iframeWindow, '.uno:GoToStartOfDoc', {});
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sendUnoCommand(iframeWindow, '.uno:GoToStartOfDoc', {});
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sendUnoCommand(iframeWindow, '.uno:GoToStartOfDoc', {});
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}
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