Comprehensive analysis of the implementation method of Bootstrap pop-up window_javascript skills

1. Structural analysis

The modal pop-up boxes in the Bootstrap framework use the "modal", "modal-dialog" and "modal-content" styles respectively, and the real content of the pop-up window is placed in "modal-content". Its main It also includes three parts:

　☑ The header of the pop-up box, generally represented by "modal-header", mainly includes the title and close button

　☑ The body of the pop-up box, usually represented by "modal-body", the main content of the pop-up box

　☑ The foot of the pop-up box, usually represented by "modal-footer", mainly places the operation buttons

<div class="modal" id="mymodal">
 <div class="modal-dialog">
 <div class="modal-content">
 <div class="modal-header">
 <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
 <h4 class="modal-title">模态弹出窗标题</h4>
 </div>
 <div class="modal-body">
 <p>模态弹出窗主体内容</p>
 </div>
 <div class="modal-footer">
 <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
 <button type="button" class="btn btn-primary">保存</button>
 </div>
 </div><!-- /.modal-content -->
 </div><!-- /.modal-dialog -->
</div><!-- /.modal -->

2. The data-toggle class triggers the pop-up window (no need to write JS)

1. Modal pop-up window declaration , only need to customize two necessary attributes: data-toggle and data-target.

<!-- data-target触发模态弹出窗元素 -->
<button class="btn btn-primary" data-toggle="modal" data-target="#mymodal-data" type="button">通过data-target触发</button>
<!-- 模态弹出窗内容 -->
<div class="modal" id="mymodal-data" tabindex="-1" role="dialog" aria-labelledby="mySmallModalLabel" aria-hidden="true">
 <div class="modal-dialog">
 <div class="modal-content">
 <div class="modal-header">
 <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
 <h4 class="modal-title">模态弹出窗标题</h4>
 </div>
 <div class="modal-body">
 <p>模态弹出窗主体内容</p>
 </div>
 <div class="modal-footer">
 <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
 <button type="button" class="btn btn-primary">保存</button>
 </div>
 </div>
 </div>
</div>

2. data-parameter description

In addition to controlling modal pop-up windows through data-toggle and data-target, the Bootstrap framework also provides other custom data-attributes for modal pop-up boxes to control modal pop-up windows.

3. JS trigger pop-up window (JS needs to be written)

　1. In addition to using custom attributes to trigger modal pop-up boxes, you can also trigger modal pop-up windows through JavaScript methods. Triggered by giving an event to an element. For example, give a button a click event, and then trigger a modal pop-up window.

HTML:

<button class="btn btn-primary" type="button">点击我</button>
<div class="modal" id="mymodal">
 <div class="modal-dialog">
 <div class="modal-content">
 <div class="modal-header">
 <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
 <h4 class="modal-title">模态弹出窗标题</h4>
 </div>
 <div class="modal-body">
 <p>模态弹出窗主体内容</p>
 </div>
 <div class="modal-footer">
 <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
 <button type="button" class="btn btn-primary">保存</button>
 </div>
 </div><!-- /.modal-content -->
 </div><!-- /.modal-dialog -->
</div><!-- /.modal -->

JS:

$(function(){
$(".btn").click(function(){
$("#mymodal").modal("toggle");
});
});

2. When using JavaScript to trigger a modal pop-up window, the Bootstrap framework provides some settings, mainly including

Property settings:

$(function(){
 $(".btn").click(function(){
 $("#mymodal").modal({
  keyboard:false
 });
 });
});

Parameter settings:

Event settings:

$('#myModal').on('hidden.bs.modal', function (e) {
 // 处理代码...
})

4. Pop-up window size

The Bootstrap framework also provides different sizes for modal popups.

One is the large size style "modal-lg".

<divclass="modal-dialog modal-lg">
 <divclass="modal-content"> ... </div>
</div>

The other is the small size style "modal-sm".

<divclass="modal-dialog modal-sm">
 <divclass="modal-content"> ... </div>
</div>

The above is a complete introduction to the implementation method of Bootstrap pop-up window. I hope it will be helpful to everyone's learning.