// ==UserScript==
// @name         强制所有链接在当前标签打开
// @namespace    https://greasyfork.org/zh-CN/scripts/446917-%E5%BC%BA%E5%88%B6%E6%89%80%E6%9C%89%E9%93%BE%E6%8E%A5%E5%9C%A8%E5%BD%93%E5%89%8D%E6%A0%87%E7%AD%BE%E6%89%93%E5%BC%80
// @version      0.25
// @license MIT
// @description  强制所有链接在当前标签打开。
// @grant unsafeWindow
// @author       meteora
// @include *://*
// @grant        GM_registerMenuCommand
// @grant GM_unregisterMenuCommand
// @downloadURL none
// ==/UserScript==

(function () {
  "use strict";
  //排除iframe
  if (window.self !== window.top) {
    return;
  }
  // 白名单管理
  let enable = localStorage.getItem("8y8Av7o3Rp") === "enable";
  if (!enable) {
    GM_registerMenuCommand("开启", () => {
      localStorage.setItem("8y8Av7o3Rp", "enable");
	    unsafeWindow.location.reload();
    });
    return;
  } else {
    GM_registerMenuCommand("关闭", () => {
      localStorage.setItem("8y8Av7o3Rp", "disable");
	    unsafeWindow.location.reload();
    });
  }
  document.head.appendChild(document.createElement("base")).target = "_self";

  const listener = function (e) {
    let dom = e.target;
    if (dom.nodeName === "A") {
      dom.target = "_self";
      return;
    }
    //循环迭代获取父节点
    for (let i = 0; i < 5; i++) {
      dom = dom.parentNode;
      //如果是a标签
      if (dom.nodeName === "A") {
        dom.target = "_self";
        return;
      }
    }
  };
  document.body.addEventListener("click", listener, true);
  //对于调用window.open跳转的
  const open = unsafeWindow.open;
  const newOpen = function (
    url = false,
    target = "_self",
    windowFeatures = false,
  ) {
    if (url && windowFeatures) {
      open(url, "_self", windowFeatures);
    } else if (url) {
      open(url, "_self");
    } else {
      open();
    }
  };
  Object.defineProperty(unsafeWindow, "open", {
    value: newOpen,
  });
})();