使用 css/jquery 的多个内联下拉菜单

Question

我使用this question 中的代码帮助我在页面上显示内联下拉菜单。不过，我需要将其中四个放在一个页面上，而且它们都将使用相同的教学策略列表。我已经尝试了所有我能想到的方法，例如为第二个菜单重命名所有元素，但没有成功。

我知道这可能简单明了，但我不明白。我可能正在改变我不应该改变的事情。我对 javascript 和 jquery 还很陌生（尽管多年来一直在使用 HTML、CSS 和一点 PHP），虽然我通常可以很好地掌握一些东西，但像这样简单的事情让我陷入了困境。

这是我此时的代码： http://jsfiddle.net/8npjQ/

<script type='text/javascript' src='http://code.jquery.com/jquery-1.6.4.js'></script>
<div id="somecontent"><span id="sort" href="#">Click for Strategies</span></div>
<div id="pop">
<div class="link" data-sort="dq1-1" >DQ1-1: Providing Clear Learning Goals and Scales (Rubrics)</div>
<div class="link" data-sort="dq1-2">DQ1-2: Tracking Student Progress</div>
<div class="link" data-sort="dq1-3">DQ1-3: Celebrating Success</div>
<div class="link" data-sort="dq6-4">DQ6-4: Establishing Classroom Routines</div>
<div class="link" data-sort="dq6-5">DQ6-5: Organizing the Physical Layout of the Classroom</div>
<div class="link" data-sort="dq2-6">DQ2-6: Identifying Critical Information</div>
<div class="link" data-sort="dq2-7">DQ2-7: Organizing Students to Interact with New Knowledge</div>
<div class="link" data-sort="dq2-8">DQ2-8: Previewing New Content</div>
<div class="link" data-sort="dq2-9">DQ2-9: Chunking Content into "Digestible Bites"</div>
<div class="link" data-sort="dq2-10">DQ2-10: Processing of New Information</div>
<div class="link" data-sort="dq2-11">DQ2-11: Elaborating on New Information</div>
<div class="link" data-sort="dq2-12">DQ2-12: Recording and Representing Knowledge</div>
<div class="link" data-sort="dq2-13">DQ2-13: Reflecting on Learning</div>
</div>

<script type="application/javascript">
var $menu = $('#pop');

$('#sort').click(function(e) {
$menu.css({
    "left": e.offsetX + "px",
    "top": e.offSetY + "px"
}).show();
 });

$('#pop .link').click(function(e) {
    var ele = $(this);
    var sortKey = ele.attr('data-sort'); // save it somewhere
$('#sort').html(ele.html()
);

$menu.hide();
});
</script>

<style type="text/css">
#sort{
 color: black;
 border-bottom: 1px dotted blue;  
}

#pop2{
 color: #444;   
 width: 205px;
 border: 1px solid #ccc;
 padding: 5px;
 display: none;
 position: absolute;
line-height:140%;
background:#FFFFFF;
}

.link:hover {
 color: red;
 cursor: pointer;
}

</style>

感谢您的任何帮助！

Answer 1

我将您的处理程序分配包装到一个函数中，并将预期元素的 id 作为参数，以便您可以将其分配给多个菜单。请注意，我还更改了一些标记；具体来说，通过摆脱“点击获取策略”范围内的 id="sort" 来降低特异性（呵呵）。相反，我使用 data-sort-for 属性将元素链接到它的内联列表。

    <div id="somecontent"><span class="sort" href="#" data-sort-for="pop">Click for Strategies</span></div>
<div id="pop">
    <div class="link" data-sort="dq1-1" >DQ1-1: Providing Clear Learning Goals and Scales (Rubrics)</div>
    <div class="link" data-sort="dq1-2">DQ1-2: Tracking Student Progress</div>
    <div class="link" data-sort="dq1-3">DQ1-3: Celebrating Success</div>
    <div class="link" data-sort="dq6-4">DQ6-4: Establishing Classroom Routines</div>
    <div class="link" data-sort="dq6-5">DQ6-5: Organizing the Physical Layout of the Classroom</div>
    <div class="link" data-sort="dq2-6">DQ2-6: Identifying Critical Information</div>
    <div class="link" data-sort="dq2-7">DQ2-7: Organizing Students to Interact with New Knowledge</div>
    <div class="link" data-sort="dq2-8">DQ2-8: Previewing New Content</div>
    <div class="link" data-sort="dq2-9">DQ2-9: Chunking Content into "Digestible Bites"</div>
    <div class="link" data-sort="dq2-10">DQ2-10: Processing of New Information</div>
    <div class="link" data-sort="dq2-11">DQ2-11: Elaborating on New Information</div>
    <div class="link" data-sort="dq2-12">DQ2-12: Recording and Representing Knowledge</div>
    <div class="link" data-sort="dq2-13">DQ2-13: Reflecting on Learning</div>
</div>
<div id="someothercontent"><span class="sort" href="#" data-sort-for="popTwo">Click for Strategies</span></div>
<div id="popTwo">
    <div class="link" data-sort="dq1-1" >DQ1-1: Providing Clear Learning Goals and Scales (Rubrics)</div>
    <div class="link" data-sort="dq1-2">DQ1-2: Tracking Student Progress</div>
    <div class="link" data-sort="dq1-3">DQ1-3: Celebrating Success</div>
    <div class="link" data-sort="dq6-4">DQ6-4: Establishing Classroom Routines</div>
    <div class="link" data-sort="dq6-5">DQ6-5: Organizing the Physical Layout of the Classroom</div>
    <div class="link" data-sort="dq2-6">DQ2-6: Identifying Critical Information</div>
    <div class="link" data-sort="dq2-7">DQ2-7: Organizing Students to Interact with New Knowledge</div>
</div>

​Javascript：

makeDropdown( '#pop' );
makeDropdown( '#popTwo' );
function makeDropdown( menu ) {
    var $menu = $( menu );
    var sorter = 'span.sort[data-sort-for='+ $menu.attr('id') +']';
    $( sorter ).click(function(e) {
        $menu.css({
            "left": e.offsetX + "px",
            "top": e.offSetY + "px"
        }).show();
    });

    $( menu + ' .link' ).click(function(e) {
        var ele = $(this);
        var sortKey = ele.attr('data-sort'); // save it somewhere
        $( sorter ).html( ele.html() );
        $menu.hide();
    });
}

风格：

.sort{
 color: black;
 border-bottom: 1px dotted blue;  
}

#pop2{
 color: #444;   
 width: 205px;
 border: 1px solid #ccc;
 padding: 5px;
 display: none;
 position: absolute;
line-height:140%;
background:#FFFFFF;
}

.link:hover {
 color: red;
 cursor: pointer;
}​

在这里测试：http://jsfiddle.net/cgspicer/2WxQa/