Function compilePreInjectScript

src/app/service/content/utils.ts:224–246

(
  script: ScriptLoadInfo,
  scriptCode: string,
  autoDeleteMountFunction: boolean = false
)

 * 将脚本函数编译为预注入脚本代码
 */
export function compilePreInjectScript(
  script: ScriptLoadInfo,
  scriptCode: string,
  autoDeleteMountFunction: boolean = false
): string {
  const scriptEnvTag = isInjectIntoContent(script.metadata) ? ScriptEnvTag.content : ScriptEnvTag.inject;
  const eventNamePrefix = `evt${process.env.SC_RANDOM_KEY}.${scriptEnvTag}`; // 仅用于early-start初始化
  const flag = `${script.flag}`;
  const scriptInfo = trimScriptInfo(script);
  const scriptInfoJSON = `${JSON.stringify(scriptInfo)}`;
  const autoDeleteMountCode = autoDeleteMountFunction ? `try{delete window['${flag}']}catch(e){}` : "";
  const evScriptLoad = `${eventNamePrefix}${DefinedFlags.scriptLoadComplete}`;
  const evEnvLoad = `${eventNamePrefix}${DefinedFlags.envLoadComplete}`;
  return `window['${flag}'] = function(){${autoDeleteMountCode}${scriptCode}};
{
  let o = { cancelable: true, detail: { scriptFlag: '${flag}', scriptInfo: (${scriptInfoJSON}) } },
  c = typeof cloneInto === "function" ? cloneInto(o, performance) : o,
  f = () => performance.dispatchEvent(new CustomEvent('${evScriptLoad}', c)),
  needWait = f();
  if (needWait) performance.addEventListener('${evEnvLoad}', f, { once: true });
}
`;
}

export function addStyle(css: string): HTMLStyleElement {
  const dom = document.createElement("style");