MyOPACのログインフォームを改善したりいろいろ

Better_MyOPAC.user.js

// ==UserScript==
// @name        Better MyOPAC
// @namespace   http://d-poppo.nazo.cc/
// @description MyOPACのログインフォーム等を改善する
// @include     https://opac.dl.itc.u-tokyo.ac.jp/myopac/
// @include     https://opac.dl.itc.u-tokyo.ac.jp/myopac/index.php*
// @include     https://opac.dl.itc.u-tokyo.ac.jp/opac/opac_list.cgi
// @include     https://opac.dl.itc.u-tokyo.ac.jp/optsrv/opac_list.php*
// @version     5
// @grant       none
// @author      ARATA Mizuki
// @license     MIT http://opensource.org/licenses/mit-license.php
// ==/UserScript==

'use strict';

function getElementByXPath(x,root) {
  var r = document.evaluate(x, root || document, null, XPathResult.ANY_UNORDERED_NODE_TYPE, null);
  return r.singleNodeValue;
}

// 「ログイン」
function better_login_form() {
  var loginspace = document.getElementById("loginspace");
  if (loginspace) {
    var login_button = getElementByXPath(".//a[@onclick='submit_check(); return false;']", loginspace);
    if (login_button) {
      var submit = document.createElement("button");
      submit.setAttribute("type", "submit");
      submit.style.display = 'none';
      login_button.parentNode.insertBefore(submit, login_button);
      login_button.addEventListener("click", function() { submit.click(); }, false);
    }

    window.chk_key = function() {};
    window.submit_check = function() {};

    var LOGIN_USERID = document.getElementById("LOGIN_USERID");
    if (LOGIN_USERID) {
      LOGIN_USERID.required = true;
    }
    var LOGIN_PASS = document.getElementById("LOGIN_PASS");
    if (LOGIN_PASS) {
      LOGIN_PASS.required = true;
    }
    /*
    var frm1 = document.getElementById("frm1");
    if (frm1) {
      frm1.addEventListener("submit", function(event) {
        if (LOGIN_USERID.value === "" || LOGIN_PASS.value === "") {
          alert(MSG_NOTHAVE_INPUT);
          event.preventDefault();
        }
      }, false);
    }
    */
  }
}

// 「検索」
function better_search_form() {
  var opacsearch = document.getElementById("opacsearch");
  var frm_opacsearch = opacsearch && getElementByXPath("./form[@name='frm_opacsearch']", opacsearch);
  if (frm_opacsearch) {
    frm_opacsearch.action = "/myopac/insert_op.php";
    frm_opacsearch.target = "opacsearch";
    var opackywd = document.getElementById("opackywd");
    if (opackywd) {
      opackywd.name = "kywd";
      opackywd.required = true;
      frm_opacsearch.opackywd = opackywd;
    }
    var lang = getElementByXPath(".//input[@type='hidden' and @name='LANG']", opacsearch);
    if (lang) {
      lang.name = "lang";
      frm_opacsearch.LANG = lang;
    }
    var search_button = getElementByXPath(".//a[@onclick='opac_search(); return false;']", opacsearch);
    if (search_button) {
      var submit = document.createElement("button");
      submit.setAttribute("type", "submit");
      submit.style.display = 'none';
      search_button.parentNode.insertBefore(submit, search_button);
      search_button.addEventListener("click", function() { submit.click(); }, false);
      window.chk_key = function() {};
      window.opac_search = function() {};
    }
    /*
    frm_opacsearch.addEventListener("submit", function(event) {
      if (opackywd.value === "") {
        alert(MSG_NOTINPUT_KEYWORD);
        event.preventDefault();
      }
    }, false);
    */
  }
}

// 検索結果
function better_search_result() {
  var main_list = document.getElementById("main_list");
  if (main_list) {
    var links = document.evaluate("./table[@class='result_list']/tbody/tr/td[@class='list_result']/span/a[starts-with(@href,\"javascript:DisplayWindow('\")]", main_list, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    // .//div[@id='main_list']/table[@class='result_list']/tbody/tr/td[@class='list_result']/span/a[starts-with(@href,\"javascript:DisplayWindow('\") and ends-with(@href,\"','1');\")]
    console.log('search result links:', links ? links.snapshotLength : null);
    for (var i = 0; i < links.snapshotLength; ++i) {
      var item = links.snapshotItem(i);
      var href = item.getAttribute("href");
      var m = href.match(/^javascript\:DisplayWindow\((.*?)\,\'1\'\)\;$/);
      if (m) {
        var url = eval(m[1]);
        item.setAttribute("href", url);
        item.setAttribute("target", "_blank");
      }
    }
  }
}
  
// 検索結果の「所蔵館」を冊数順に並べ替える
function better_search_result_department() {
  var facet_block = document.getElementById("facet_block");
  var facet_list = facet_block ? getElementByXPath("./table/tbody/tr/td/div[@class='facet_list']", facet_block) : null;
  var isElementNode = function(e) { return e.nodeType === Node.ELEMENT_NODE; };
  if (facet_block && facet_list) {
    var facet_list_observer = new MutationObserver(function(mutations) {
      mutations.forEach(function(mutation) {
        var facet_item1 = Array.prototype.filter.call(mutation.addedNodes, function(e) { return isElementNode(e) && e.id === "facet_item1"; })[0];
        if (facet_item1) {
          facet_list_observer.disconnect();
          var facet_item1_observer = new MutationObserver(function(mutations) {
            mutations.forEach(function(mutation) {
              var table = Array.prototype.filter.call(mutation.addedNodes, function(e) { return isElementNode(e) && e.tagName === "TABLE"; })[0];
              if (table) {
                facet_item1_observer.disconnect();
                setTimeout(function() {
                  var dptidpl_block = getElementByXPath("./tbody/tr/td/div[@class='dptidpl_block']", table);
                  var facets1 = getElementByXPath("./ul[@class='facet_item']", dptidpl_block);
                  var facets2 = getElementByXPath("./div[@id='dptidpl_list']/ul[@class='facet_item']", dptidpl_block);
                  if (facets1 && facets2) {
                    var list1 = Array.prototype.filter.call(facets1.childNodes, isElementNode);
                    var list2 = Array.prototype.filter.call(facets2.childNodes, isElementNode);
                    list1.forEach(function(e) { facets1.removeChild(e); });
                    list2.forEach(function(e) { facets2.removeChild(e); });
                    var all = list1.concat(list2).map(function(elem) {
                      var m = elem.lastChild.textContent.match(/\((\d+)\)/);
                      return {elem: elem, count: m ? parseInt(m[1]) : -1};
                    });
                    all.sort(function(x,y) { return y.count - x.count; });
                    all.forEach(function(e,i) {
                      if (i < list1.length) {
                        facets1.appendChild(e.elem);
                      } else {
                        facets2.appendChild(e.elem);
                      }
                    });
                  }
                }, 0);
              }
            });
          });
          facet_item1_observer.observe(facet_item1, {childList: true});
        }
      });
    });
    facet_list_observer.observe(facet_list, {childList: true});
  }
}

function init() {
  console.log("Better MyOPAC is running");
  better_login_form();
  better_search_form();
  better_search_result();
  better_search_result_department();
}

if (document.readyState === "interactive" || document.readyState === "complete") {
  init();
} else {
  window.addEventListener('load', init, false);
}