javascript - 如何在 jQuery Accordions 中实现即时搜索

Question

我对 JavaScript 很陌生，我正在尝试将 Json 数据绑定(bind)到 Accordion ，但到目前为止，我似乎还无法正确执行此操作。 jsfiddle

另外我如何能够立即在 Accordion 中搜索？

var contacts = [{
    "Title": "Change Management",
    "Definition": "Collective term for all approaches to prepare and support individuals, teams, and organizations in making organizational change. The most common change drivers include: technological evolution, process reviews, crisis, and consumer habit changes; pressure from new business entrants, acquisitions, mergers, and organizational restructuring. It includes methods that redirect or redefine the use of resources, business process, budget allocations, or other modes of operation that significantly change a company or organization. Organizational change management (OCM) considers the full organization and what needs to change,[3] while change management may be used solely to refer to how people and teams are affected by such organizational transition. It deals with many different disciplines, from behavioral and social sciences to information technology and business solutions. In a project-management context, the term "change management" may be used as an alternative to change control processes where in changes to the scope of a project are formally introduced and approved."
  },
  {
    "Title": "Testing glossary",
    "Definition": "Testing Text 1 Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum"
  },
  {
    "Title": "More info",
    "Definition": "Testing Text 1 but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but occasionally circumstances occur in which toil and pain"
  },
  {
    "Title": "Category 2",
    "Definition": "Testing Text 1 Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat."
  }
];

var departmentlist = new Array();
$.each(contacts, function(i, contact) {
  //insert the departments
  if (contact.Title != null && $('#' + contact.Title).length == 0) {
    $('#accordion').append('<h3 id=' + contact.Title + '><a href="#">' + contact.Title + '</a></h3>');
    departmentlist.push(contact.Title);
  }
  //insert contacts in the accordion
  $('#' + contact.Title).after('<p><a' + contact.Definition + '</a></p>');
});
$.each(departmentlist, function(i, list) {
$("#" + list).nextUntil("h3").wrapAll("<div></div>");
});
});
$(function() {
      $("#accordion").accordion({
        collapsible: true,
        active: false,
      });

<link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/themes/base/jquery-ui.css" rel="stylesheet"/>

<div id="contactlist">
  <div id="accordion">

  </div>
</div>

更新2

具有以下code worked作者:@Twisty。这是我目前在 SharePoint Site 中看到的似乎唯一仍然不起作用的是搜索/突出显示。

Answer 1

考虑以下可能的解决方案。

工作示例:https://jsfiddle.net/Twisty/6v4h7fL3/73/

将 Fiddle 切换为使用 jQuery 3.3.1 和 jQuery UI 1.12.1。如果可能的话最好使用最新版本。代码应该适用于一些未经测试的旧版本。

HTML

<div id="contactlist">
  <form id="search-form" class="ui-widget">
    <p class="ui-widget-content">
      <label for="term">Search:</label> <input type="text" id="term" class="ui-widget ui-corner-all" /> <button type="submit" id="btn-go" class="ui-widget ui-button ui-corner-all">Find</button>
    </p>
  </form>
  <div id="accordion">
  </div>
</div>

添加了搜索字段表单。使用 submit 的表单事件回调允许用户按 Enter 或单击按钮。我怀疑很多像我这样的用户输入一些内容并点击 Enter。

JavaScript

$(function() {
  var departmentlist = [];
  var a = $("#accordion");

  function wrapText(term, obj) {
    var myText = obj.html().toString();
    var re = new RegExp(term, "g");
    var wObj = $("<span>", {
      class: "found ui-state-highlight"
    }).html(term);
    var w = wObj.prop("outerHTML");
    var newText = myText.replace(re, w);
    console.log("Wrap:", re, myText, newText);
    obj.html(newText);
  }

  $.each(contacts, function(i, contact) {
    //insert the departments
    if (contact.Title != null && $('#' + contact.Title).length == 0) {
      var header = $("<h3>", {
        id: contact.Title
      }).html(contact.Title).appendTo(a);
      var details = $("<div>").appendTo(a);
      $("<p>").html(contact.Definition).appendTo(details);
      departmentlist.push(contact.Title);
    }
  });

  a.accordion({
    collapsible: true,
    active: false,
  });

  $("#search-form").submit(function(e) {
    e.preventDefault();
    var q = $("#term").val();
    $.each(contacts, function(k, v) {
      if (v.Definition.indexOf(q) >= 0) {
        // Found
        console.log("'" + q + "' found under " + v.Title + " (" + k + ")");
        // Collapse all
        a.accordion("option", "active", false);
        // Active Section with found item
        a.accordion("option", "active", k);
        a.find(".found").removeClass("found ui-state-highlight");
        wrapText(q, $(".ui-accordion-content-active"));
        return false;
      }
    });
  });
});

wrapText()对搜索的文本进行一些基本的替换，并将其用 <span> 括起来。用于突出显示。它接受术语和一个 jQuery 对象，该对象包含应搜索和突出显示的文本。

我改进了您使用的构造代码，使其更像 jQuery。一旦一切都构建完成，我们应用 .accordion() .

当输入搜索并提交表单时，我们会查找第一个出现的查询，打开它的容器并突出显示文本。

这有点快速而且肮脏。如果您需要的话，可以通过多种方式对其进行改进。例如，现在它不区分大小写。因此，如果您搜索 testing你不会得到任何结果，但如果你搜索 Testing ，它会起作用的。

更新

这是一个更加独立的功能，如果您在 SharePoint 中运行它，而您对 HTML 没有太多控制权，那么这会很有帮助。

$(function() {

  function GetItems() {
    var siteURL = _spPageContextInfo.webServerRelativeUrl;
    //var siteURL = "https://reqres.in/api/unknown" //Non-SharePoint URL
    $.ajax({
      url: siteURL + "/_api/web/lists/GetByTitle('glossary of terms')/items", //change the list name
      type: "GET",
      dataType: "json",
      headers: {
        Accept: "application/json;odata=verbose"
      },
      success: function(data) {
        if (data.d.results.length > 0) {
          GenerateAccordionFromJson(data.d.results, true, $("#accordion"));
          $("#accordion").accordion({
            collapsible: true,
            active: false,
          });
        } else {
          $('#accordion').append("<span>No Records Found.</span>");
        }
      },
      error: function(error) {
        console.log(JSON.stringify(error));
      }
    });
  }

  function wrapText(term, tObj) {
    var oldText = tObj.html();
    var re = new RegExp(term, "g");
    var newText = oldText.replace(term, "<span class='found highlight'>" + term + "</span>");
    tObj.html(newText);
  }

  function GenerateAccordionFromJson(json, search, tObj) {
    if (search == undefined) {
      search = false;
    }
    if (tObj == undefined || tObj.length < 1) {
      tObj = $("<div>", {
        class: "items",
        id: "accordion" + ($("#accordion").length ? "-" + $("#accordion").length : "")
      }).appendTo($("body"));
    }
    if (search) {
      var form = $("<form>", {
        class: "search-form"
      }).submit(function(e) {
        e.preventDefault();
        var q = $(".search-term", this).val();
        var aObj = $(this).next("div");
        var stacks = [];

        $(".found").removeClass("found highlight");

        $(".ui-accordion-content", aObj).each(function(ind, el) {
          stacks.push($(el).text().trim());
        });
        $.each(stacks, function(i, s) {
          if (s.indexOf(q) >= 0) {
            aObj.accordion("option", "active", false);
            aObj.accordion("option", "active", i);
            wrapText(q, $(".ui-accordion-content-active", aObj));
          }
        });
      }).insertBefore(tObj);
      $("<p>").html("Search:").appendTo(form);
      $("<input>", {
        type: "text",
        class: "search-term"
      }).appendTo($("p", form));
      $("<button>", {
        type: "submit",
        class: "search-btn-go"
      }).appendTo($("p", form));
    }
    $.each(json, function(key, row) {
      $("<h3>").html(row.Title).appendTo(tObj);
      $("<div>").html("<p>" + row.Definition + "</p>").appendTo(tObj);
    });
  }
});

更新2

确保您在头部加载正确的库。您表明您正在使用:

<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script> 

这会加载相同的库两次，只是首先加载“最小”版本。我会删除两者中的第二个。

不知道SP是否使用jQuery。如果它尚未加载，您需要确保将其包含在 header 中。

如果没有，您可以执行以下操作:

<script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js" integrity="sha256-VazP97ZCwtekAsvgPBSUwPFKdrwD3unUfSGVYrahUqU=" crossorigin="anonymous"></script>

正如您所提到的，在评论中，我忘记包含初始函数的最终运行:

GetItems();

在关闭最终包装器之前添加此内容以确保它得到执行。

更新3

尝试以下脚本代码:

$(function() {
  var n = new Date();

  function log(msg) {
    var t = new Date();
    var d = t - n;
    console.log(d, msg);
  }

  function GetItems() {
    var siteURL = _spPageContextInfo.webServerRelativeUrl;
    log("GetItems: Start: " + siteURL);
    $.ajax({
      url: siteURL + "/_api/web/lists/GetByTitle('glossary of terms')/items", //change the list name
      type: "GET",
      dataType: "json",
      headers: {
        Accept: "application/json;odata=verbose"
      },
      success: function(data) {
        if (data.d.results.length > 0) {
          $('#accordion').append(GenerateAccordionFromJson(data.d.results));
          $("#accordion").accordion({
            collapsible: true,
            active: false,
          });
        } else {
          $('#accordion').append("<span>No Records Found.</span>");
        }
      },
      error: function(error) {
        log("GetItems: Error: " + JSON.stringify(error));
      }
    });
    log("GetItems: Complete");
  }

  function GenerateAccordionFromJson(objArray) {
    log("GenAccord: Started");
    var accordionContent = "";
    for (var i = 0; i < objArray.length; i++) {
      accordionContent += '<h3>' + objArray[i].Title + '</h3>';
      accordionContent += '<div><p>' + objArray[i].Definition + '</p></div>';
    }
    log("GenAccord: Complete");
    return accordionContent;
  }

  GetItems();
});

然后您可以查看控制台并应该看到所有正在运行的操作。如果没有详细信息，请查找警报或错误。

希望有帮助。