javascript - 我怎样才能获得多种模式？

Question

我正在使用循环从 YML 文件生成元素，对于每个元素，我希望能够单击它们并在 YML 文件中概述不同的内容。但是，当单击第一个元素时，它可以工作，但是当单击页面中的任何其他元素时，模式甚至不再出现。

{% for company in site.data.stories %}
    <div class="col-md-6 col-sm-6  col-xs-12 company" style="height: 600px;">
        <div class="img-container">

            <!-- Trigger/Open The Modal -->
            <button id="myBtn">
            <img class="center" style="width: 486px; height: 364.5px;" id="{{company.image_url}}" src="/assets/img/stories/{{company.image_url}}.png" alt="{{company.name}}"></button>

            <!-- The Modal -->
            <div id="myModal" class="modal">
            <!-- Modal content -->
            <div class="modal-content">
            <div class="modal-header">
                <span class="close">&times;</span>
                <h2>{{company.name}}</h2>
            </div>
            <div class="modal-body">
                <strong>Date of Event: </strong>{{company.date_of_event}}
                <p>{{company.fullstory}}</p>
            </div>
            <div class="modal-footer">
            <h3>The End</h3>
            </div>
            </div>
            </div>
        </div>

            <h3><a href="{{company.site_url}}" class="center">{{company.name}}</a></h3> 
            <p><b>Date of Event: </b> {{company.date_of_event}}</p>
            <p>{{company.description}}</p>
    </div>
    {% endfor %}

Java 脚本:

<script> // Modal Script
// Get the modal
var modal = document.getElementById('myModal');
// Get the button that opens the modal
var btn = document.getElementById("myBtn");
// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];
// When the user clicks the button, open the modal 
btn.onclick = function() {modal.style.display = "block";}
// When the user clicks on <span> (x), close the modal
span.onclick = function() {modal.style.display = "none";}
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {if (event.target == modal) {modal.style.display = "none";}}
</script>

YML 文件中的每个元素的概述如下:

name: The Delgado Household Story
  description: The Joy Project helps a single mother of eight with time and donations.
  image_url: delgado_photo2
  site_url: #
  date_of_event: Coming Soon...
  width: 90
  margin: 5
  fullstory: 

Answer 1

您必须将每个模态 ID 重命名为不同的名称，现在它们都是动态生成的 ID myModal 。此外，触发每个模式的按钮也必须知道要触发哪个模式。您可以将模式的 ID 设置为每组数据特定的内容，例如 name或为每条记录添加唯一的 ID 属性。

为了节省加载一堆模态...而不是根据数据动态创建模态(重用 ID myModal )，尝试重用单个模态并动态添加可能是个好主意该模式的内容取决于单击的内容。您仍然可以一一加载所有公司数据(将模态保留在 html 中的 for 循环之外)，然后当单击模态按钮时，注入(inject)要在模态中显示的其余数据。

{% for company in site.data.stories %}
<div class="col-md-6 col-sm-6  col-xs-12 company" style="height: 600px;">
    <div class="img-container">

        <!-- Trigger/Open The Modal -->
        <button id="{{company.uniqueID}}">
        <img class="center" style="width: 486px; height: 364.5px;" id="{{company.image_url}}" src="/assets/img/stories/{{company.image_url}}.png" alt="{{company.name}}"></button>
    </div>

        <h3><a href="{{company.site_url}}" class="center">{{company.name}}</a></h3> 
        <p><b>Date of Event: </b> {{company.date_of_event}}</p>
        <p>{{company.description}}</p>
</div>
{% endfor %}


<!-- The Modal -->
<div id="myModal" class="modal">
    <!-- Modal content -->
    <div class="modal-content">
        <div class="modal-header">
            <span class="close">&times;</span>
            <h2>{{company.name}}</h2>
        </div>
        <div class="modal-body">
            <strong>Date of Event: </strong>{{company.date_of_event}}
            <p>{{company.fullstory}}</p>
        </div>
        <div class="modal-footer">
            <h3>The End</h3>
        </div>
    </div>
</div>

注意:您可能需要考虑如何以不同的方式构建数据。也许给每个按钮一个唯一的 ID，并获取与该唯一 ID 相关的数据，<button id="{{company.uniqueID}}"> 。

您还可以根据名称“Delgado Household Story”等设置 ID 获取... <button id="{{company.name}}"> ，然后根据按钮 ID 进行注入(inject)，例如 get button ID name, find and match name in dataset, then set modal data based off of properties in that 'name'