testing-tool/entrypoints/background.ts

import '../.wxt/types/imports.d.ts';
import { browser } from 'wxt/browser';

export default defineBackground(() => {
  // 监听扩展图标点击事件，打开侧边栏
  browser.action.onClicked.addListener(async (tab) => {
    if (tab.id) {
      try {
        await browser.sidePanel.open({ tabId: tab.id });
      } catch (err) {
        console.error('Failed to open side panel:', err);
      }
    }
  });

  // 监听扩展安装或更新事件
  browser.runtime.onInstalled.addListener(async ({ reason }) => {
    if (reason === 'install') {
      console.log('Extension installed for the first time');
    } else if (reason === 'update') {
      console.log('Extension updated to a new version');
    }

    // 获取所有标签页
    const tabs = await browser.tabs.query({});

    // 过滤不合法或受限制的 URL
    const targetTabs = tabs.filter((tab) => {
      if (!tab.id || !tab.url) return false;
      const restrictedProtocols = [
        'chrome:',
        'chrome-extension:',
        'about:',
        'edge:',
        'view-source:',
      ];
      return !restrictedProtocols.some((protocol) => tab.url!.startsWith(protocol));
    });

    const results = await Promise.allSettled(
      targetTabs.map((tab) =>
        browser.scripting
          .executeScript({
            target: { tabId: tab.id! },
            files: ['/content-scripts/content.js'],
          })
          .catch((err) => {
            console.warn(`Failed to inject script into tab ${tab.id}:`, err.message);
          }),
      ),
    );

    const successCount = results.filter((r) => r.status === 'fulfilled').length;
    console.log(
      `Successfully injected content script into ${successCount}/${targetTabs.length} tabs.`,
    );
  });

  chrome.tabs.onUpdated.addListener((tabId) => {
    console.log('加载完成的 Tab ID:', tabId);
  });
});