// ==UserScript==
// @name      Google & baidu Switcher (ALL in One)
// @namespace  https://openuserjs.org/scripts/t3xtf0rm4tgmail.com/Google_baidu_Switcher_(ALL_in_One)
// @author    F9y4ng
// @version    1.4.3.4
// @description  分别在百度和google的搜索结果页面增加搜索跳转按钮，使用到外链微软CDN的jquery-1.7.2.min.js，不懂跳墙使用GOOGLE的同学请自动忽略。自动判断百度和google对JQUERY的载入，并动态载入Jquery.js。
// @include         /^https?\:\/\/[a-zA-Z0-9]*.google.[^\/]+/
// @include        http://www.baidu.com/*
// @include        https://www.baidu.com/*
// @license        MPL-2.0
// @copyright      2015+, f9y4ng
// @grant          none

// @downloadURL none
// ==/UserScript==

if ("undefined" == typeof (jQuery)) {
  loadJs("for_google", "https://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7.2.min.js", callbackFunction);
}
else {

  $(document).ready(function () {
    function baiduswitchgoogle() {
      $('.s_btn_wr').after('<div class="s_btn_wr bg" style="display:inline-block;margin-left:10px\
      "><input type="button" id="ggyx" value="Google一下" class="bg s_btn" ></div>');
      $('#ggyx').on({
        click: function () {
          window.open("https://www.google.com/search?newwindow=1&hl=zh-CN&source=hp&q=" + encodeURIComponent($('#kw').val()));
          return false;
        }
      });
    }
    if (GetUrlParam("wd").length > 0 || window.location.href.lastIndexOf("/s?") > 0) {
      baiduswitchgoogle();
    }
    //2018/11/07 F9y4ng 检测从baidu首页进入的搜索（修正自动提交的Bug，百度太贱）
    if (/^http(s)?:\/\/(www\.)?baidu\.com\/$/ig.test(window.location.href)) {
      $("#kw").on("blur", function () {
        if ($('#kw').val().length > 0) {
          setTimeout(function () {
            if ($('#ggyx').length < 1 && GetUrlParam("wd").length > 0) {
              baiduswitchgoogle();
            }
          }, 600);
        }
      });

    }

  });
}

function callbackFunction() {
  $(document).ready(function () {
    function googleswitchbaidu() {
      $('#tsf').prepend('<div id="sfdiv_bd" style="display:inline-block;position:relative;height:10px;width:110px;right:-115px;top:6px;float:right;">\
        <button id="bdyx" class="lsbb kpbb" style="height:45px;margin-top:4px;cursor:pointer"><span class="sbico" style="color:#fff;margin-top:-4px">\
        <svg focusable="false" style="fill: #fff;" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M15.5 14h-.79l-.28-.27A6.471 6.471 0\
        0 0 16 9.5 6.5 6.5 0 1 0 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 \
        9.5 11.99 14 9.5 14z"></path></svg></span><span style="font-size:16px;">百度一下</span></button></div>');
      $('input[name="q"]').click(function () {
        $("#sfdiv_bd").off("click");
      });
      $('#sfdiv_bd').on({
        click: function () {
          var kw = $('input[name="q"]').val();
          //获取属性标签不是很稳妥，下面继续容错
          if ("undefined" == typeof (kw)) {
            kw = GetUrlParam("q");
          }
          window.open("https://www.baidu.com/s?ie=utf-8&rqlang=cn&wd=" + encodeURIComponent(kw));
          return false;
        }
      });
    }
    if (window.location.hash.lastIndexOf("q=") > 0 || window.location.search.lastIndexOf("q=") > 0) {
      googleswitchbaidu();
    }
    //2018/11/07 F9y4ng GOOGLE首页自动提交搜索修正
    if (/^http(s)?:\/\/(www\.)?google\.\w+(\.\w+)?\/$/ig.test(window.location.href) || GetUrlParam("q") === null || GetUrlParam("q") === "") {
      var gfm = $('input[name="q"]');
      if ("undefined" == typeof (gfm)) {
        gfm = $("#lst-ib");
      }
      gfm.off('click').on({
        blur: function () {
          if (gfm.val().length > 0) {
            $("form").submit();
          }
        }
      });
    }
  });
}

function loadJs(sid, jsurl, callback) {
  var nodeHead = document.getElementsByTagName('head')[0];
  var nodeScript = null;
  if (document.getElementById(sid) === null) {
    nodeScript = document.createElement('script');
    nodeScript.setAttribute('type', 'text/javascript');
    nodeScript.setAttribute('src', jsurl);
    nodeScript.setAttribute('id', sid);
    if (callback !== null) {
      nodeScript.onload = nodeScript.onreadystatechange = function () {
        if (nodeScript.ready) {
          return false;
        }
        if (!nodeScript.readyState || nodeScript.readyState == "loaded" || nodeScript.readyState == 'complete') {
          nodeScript.ready = true;
          callback();
        }
      };
    }
    nodeHead.appendChild(nodeScript);
  }
  else {
    if (callback !== null) {
      callback();
    }
  }
}

function GetUrlParam(paraName) {
  var url = document.location.toString();
  var arrObj = url.split("?");
  if (arrObj.length > 1) {
    var arrPara = arrObj[1].split("&");
    var arr;
    for (var i = 0; i < arrPara.length; i++) {
      arr = arrPara[i].split("=");
      if (arr !== null && arr[0] == paraName) {
        return arr[1];
      }
    }
    return "";
  }
  else {
    return "";
  }
}