链接在点击事件的<li>上无法正常运行

时间：2018-02-21 12:05:51

标签： javascript jquery html css

我正在使用Javascript创建一个搜索+下拉列表，并且出于某种原因，单击Tree元素时没有触发像它应该的链接。回到我在codepen上找到的样本后，它有同样的问题：search-box-with-suggestions

我使用了一些过滤逻辑和<li>将列表项添加为链接。

我非常感谢任何帮助！我也试过使用jQuery.append()事件无济于事。

以下是我的一些代码：

＆＃13;
＆＃13; 
onclick()
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// Search Bar Filter Logic
function searchPlayers() {
  var input, filter, ul, li, a, i;
  input = document.getElementById("searchBarInput");
  filter = input.value.toUpperCase();
  div = document.getElementById("dropdownItems");
  li = div.getElementsByTagName("li");

  // remove all current items
  for (i = li.length - 1; i > -1; i--) {
    div.removeChild(li[i]);
  }

  // check for min length
  if (filter.length < 3) {
    $('#dropdownItems').append("<li><a>Please input at least 3 characters.</a></li>");
  } else {
    // Here I add filtered items to the drop dwon
    $('#dropdownItems').append("<li><a href='playerPage.html?playerID=" + "playerID" + "'>" + "Player Name" + " - " + "Player Position" + "</a></li>");
  }
}  

// Search Bar focus lost
$(document).on("focusout", "#searchBarInput input", function() {
  var div = document.getElementById("dropdownItems");
  var li = div.getElementsByTagName("li");

  // remove all current items
  for (i = li.length - 1; i > -1; i--) {
    div.removeChild(li[i]);
  }
});
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/* * Copyright (c) 2012 Thibaut Courouble
 * Licensed under the MIT License
   ================================================== */
a {
    color: #1e7ad3;
    text-decoration: none;
	font-size: 12px;
}

a:hover { text-decoration: underline }

input {
    font-size: 13px;
    color: #555860;
}
.search {
    position: relative;
    margin: 0 auto;
}
   
.search input {
    height: 26px;
    width: 100%;
    padding: 0 12px 0 25px;
    background: white url("https://cssdeck.com/uploads/media/items/5/5JuDgOa.png") 8px 6px no-repeat;
    border-width: 1px;
    border-style: solid;
    border-color: #a8acbc #babdcc #c0c3d2;
    border-radius: 13px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
    -o-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
    -moz-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
    -ms-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
    -o-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
    box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
}

.search input:focus {
    outline: none;
    border-color: #66b1ee;
    -webkit-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
    -moz-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
    -ms-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
    -o-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
    box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
}

.search input:focus + .results { display: block }

.search .results {
    display: none;
    position: absolute;
    top: 35px;
    left: 0;
    right: 0;
    z-index: 10;
    padding: 0;
    margin: 0;
    border-width: 1px;
    border-style: solid;
    border-color: #cbcfe2 #c8cee7 #c4c7d7;
    border-radius: 3px;
    background-color: #fdfdfd;
    background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #fdfdfd), color-stop(100%, #eceef4));
    background-image: -webkit-linear-gradient(top, #fdfdfd, #eceef4);
    background-image: -moz-linear-gradient(top, #fdfdfd, #eceef4);
    background-image: -ms-linear-gradient(top, #fdfdfd, #eceef4);
    background-image: -o-linear-gradient(top, #fdfdfd, #eceef4);
    background-image: linear-gradient(top, #fdfdfd, #eceef4);
    -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    -moz-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    -ms-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    -o-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.search .results li {
	display: block;
}

.search .results li:first-child { margin-top: -1px }

.search .results li:first-child:before, .search .results li:first-child:after {
    display: block;
    content: '';
    width: 0;
    height: 0;
    position: absolute;
    left: 50%;
    margin-left: -5px;
    border: 5px outset transparent;
}

.search .results li:first-child:before {
    border-bottom: 5px solid #c4c7d7;
    top: -11px;
}

.search .results li:first-child:after {
    border-bottom: 5px solid #fdfdfd;
    top: -10px;
}

.search .results li:first-child:hover:before, .search .results li:first-child:hover:after { display: none }

.search .results li:last-child { margin-bottom: -1px }

.search .results a {
    display: block;
    position: relative;
    margin: 0 -1px;
    padding: 6px 40px 6px 10px;
    color: #808394;
	text-color: #808394;
    font-weight: 500;
    text-shadow: 0 1px #fff;
    border: 1px solid transparent;
    border-radius: 3px;
}

.search .results a span { font-weight: 200 }

.search .results a:before {
    content: '';
    width: 18px;
    height: 18px;
    position: absolute;
    top: 50%;
    right: 10px;
    margin-top: -9px;
    background: url("https://cssdeck.com/uploads/media/items/7/7BNkBjd.png") 0 0 no-repeat;
}

.search .results a:hover {
    text-decoration: none;
    color: #fff;
    text-shadow: 0 -1px rgba(0, 0, 0, 0.3);
    border-color: #2380dd #2179d5 #1a60aa;
    background-color: #338cdf;
    background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #59aaf4), color-stop(100%, #338cdf));
    background-image: -webkit-linear-gradient(top, #59aaf4, #338cdf);
    background-image: -moz-linear-gradient(top, #59aaf4, #338cdf);
    background-image: -ms-linear-gradient(top, #59aaf4, #338cdf);
    background-image: -o-linear-gradient(top, #59aaf4, #338cdf);
    background-image: linear-gradient(top, #59aaf4, #338cdf);
    -webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
    -moz-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
    -ms-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
    -o-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
}

:-moz-placeholder {
    color: #a7aabc;
    font-weight: 200;
}

::-webkit-input-placeholder {
    color: #a7aabc;
    font-weight: 200;
}

.lt-ie9 .search input { line-height: 26px }
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＆＃13;

1 个答案:

答案 0 :(得分：2)

仅当输入字段具有:focus时（即，当用户在输入字段内单击时），该链接才可见。您需要调整显示结果列表的css选择器以在结果列表中包含:hover（因此在填充列表后，用户将鼠标移到列表上，当用户单击该列表时，列表仍然可见输入并输入结果）：

.search input:focus + .results,
.search .results:hover { display: block }


// Search Bar Filter Logic
function searchPlayers() {
  var input, filter, ul, li, a, i;
  input = document.getElementById("searchBarInput");
  filter = input.value.toUpperCase();
  div = document.getElementById("dropdownItems");
  li = div.getElementsByTagName("li");

  // remove all current items
  for (i = li.length - 1; i > -1; i--) {
    div.removeChild(li[i]);
  }

  // check for min length
  if (filter.length < 3) {
    $('#dropdownItems').append("<li><a>Please input at least 3 characters.</a></li>");
  } else {
    // Here I add filtered items to the drop dwon
    $('#dropdownItems').append("<li><a href='playerPage.html?playerID=" + "playerID" + "'>" + "Player Name" + " - " + "Player Position" + "</a></li>");
  }
}  

// Search Bar focus lost
$(document).on("focusout", "#searchBarInput input", function() {
  var div = document.getElementById("dropdownItems");
  var li = div.getElementsByTagName("li");

  // remove all current items
  for (i = li.length - 1; i > -1; i--) {
    div.removeChild(li[i]);
  }
});
/* * Copyright (c) 2012 Thibaut Courouble
 * Licensed under the MIT License
   ================================================== */
a {
    color: #1e7ad3;
    text-decoration: none;
	font-size: 12px;
}

a:hover { text-decoration: underline }

input {
    font-size: 13px;
    color: #555860;
}
.search {
    position: relative;
    margin: 0 auto;
}
   
.search input {
    height: 26px;
    width: 100%;
    padding: 0 12px 0 25px;
    background: white url("https://cssdeck.com/uploads/media/items/5/5JuDgOa.png") 8px 6px no-repeat;
    border-width: 1px;
    border-style: solid;
    border-color: #a8acbc #babdcc #c0c3d2;
    border-radius: 13px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
    -o-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
    -moz-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
    -ms-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
    -o-box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
    box-shadow: inset 0 1px #e5e7ed, 0 1px 0 #fcfcfc;
}

.search input:focus {
    outline: none;
    border-color: #66b1ee;
    -webkit-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
    -moz-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
    -ms-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
    -o-box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
    box-shadow: 0 0 2px rgba(85, 168, 236, 0.9);
}

.search input:focus + .results,
.search .results:hover { display: block }

.search .results {
    display: none;
    position: absolute;
    top: 35px;
    left: 0;
    right: 0;
    z-index: 10;
    padding: 0;
    margin: 0;
    border-width: 1px;
    border-style: solid;
    border-color: #cbcfe2 #c8cee7 #c4c7d7;
    border-radius: 3px;
    background-color: #fdfdfd;
    background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #fdfdfd), color-stop(100%, #eceef4));
    background-image: -webkit-linear-gradient(top, #fdfdfd, #eceef4);
    background-image: -moz-linear-gradient(top, #fdfdfd, #eceef4);
    background-image: -ms-linear-gradient(top, #fdfdfd, #eceef4);
    background-image: -o-linear-gradient(top, #fdfdfd, #eceef4);
    background-image: linear-gradient(top, #fdfdfd, #eceef4);
    -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    -moz-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    -ms-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    -o-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.search .results li {
	display: block;
}

.search .results li:first-child { margin-top: -1px }

.search .results li:first-child:before, .search .results li:first-child:after {
    display: block;
    content: '';
    width: 0;
    height: 0;
    position: absolute;
    left: 50%;
    margin-left: -5px;
    border: 5px outset transparent;
}

.search .results li:first-child:before {
    border-bottom: 5px solid #c4c7d7;
    top: -11px;
}

.search .results li:first-child:after {
    border-bottom: 5px solid #fdfdfd;
    top: -10px;
}

.search .results li:first-child:hover:before, .search .results li:first-child:hover:after { display: none }

.search .results li:last-child { margin-bottom: -1px }

.search .results a {
    display: block;
    position: relative;
    margin: 0 -1px;
    padding: 6px 40px 6px 10px;
    color: #808394;
	text-color: #808394;
    font-weight: 500;
    text-shadow: 0 1px #fff;
    border: 1px solid transparent;
    border-radius: 3px;
}

.search .results a span { font-weight: 200 }

.search .results a:before {
    content: '';
    width: 18px;
    height: 18px;
    position: absolute;
    top: 50%;
    right: 10px;
    margin-top: -9px;
    background: url("https://cssdeck.com/uploads/media/items/7/7BNkBjd.png") 0 0 no-repeat;
}

.search .results a:hover {
    text-decoration: none;
    color: #fff;
    text-shadow: 0 -1px rgba(0, 0, 0, 0.3);
    border-color: #2380dd #2179d5 #1a60aa;
    background-color: #338cdf;
    background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #59aaf4), color-stop(100%, #338cdf));
    background-image: -webkit-linear-gradient(top, #59aaf4, #338cdf);
    background-image: -moz-linear-gradient(top, #59aaf4, #338cdf);
    background-image: -ms-linear-gradient(top, #59aaf4, #338cdf);
    background-image: -o-linear-gradient(top, #59aaf4, #338cdf);
    background-image: linear-gradient(top, #59aaf4, #338cdf);
    -webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
    -moz-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
    -ms-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
    -o-box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.2), 0 1px rgba(0, 0, 0, 0.08);
}

:-moz-placeholder {
    color: #a7aabc;
    font-weight: 200;
}

::-webkit-input-placeholder {
    color: #a7aabc;
    font-weight: 200;
}

.lt-ie9 .search input { line-height: 26px }
<!DOCTYPE html>
<html>

<head>
  <link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
</head>

<body>


  <!-- Page Content -->
  <header class="w3-display-container w3-content w3-wide" style="max-width:1500px;" id="home">
    <img class="w3-image w3-black" src="http://www.sportssabermetrics.net/html/images/header_image.jpg" alt="Header Image" width="100%">
    <div class="w3-display-middle w3-center" style="width:60%;">
      <!-- Search Bar -->
      <section class="main">
        <div id="myDropdown" style="margin: auto; font-size: 14px;">
          <form class="search" method="post"><input type="text" id="searchBarInput" placeholder="Search for NFL Player" onkeyup="searchPlayers()" />
            <ul id="dropdownItems" class="results">
            </ul>
        </div>
      </section>
    </div>
  </header>

</body>

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