Detailed explanation of the use of pointer-events in css3

This time I will bring you a detailed explanation of the use of css3 pointer-events. What are the precautions when using css3 pointer-events? Here are practical cases, let’s take a look.

What are pointer-events?

As the name suggests, pointer-events is an attribute used for HTML pointer events.

pointer-events can disable hover/focus/active and other dynamic effects of HTML elements.

The default value is auto, syntax:

pointer-events: auto | none | visiblepainted | visiblefill | visiblestroke | visible | painted | fill | stroke | all;

us Commonly used auto | none attributes. It should be noted that other attributes are only applicable to SVG elements.

auto: Pointer events can be used.

none: Disable pointer events. It should be noted that when the element with pointer disabled has child/parent elements, the event will be triggered on its child/parent elements during the time bubbling/capture phase.

Common scenarios

1. Disable a label event effect

When doing tab switching, when the current item is selected, the event of the current label is disabled , only when switching other tabs, new data will be requested again.

<!--CSS-->
 <style>
     .active{
         pointer-events: none;
     }
 </style>
 <!--HTML-->
 <ul>
     <li><a class="tab"></a></li>
     <li><a class="tab active"></a></li>
     <li><a class="tab"></a></li>
 </ul>

2. Switch on/offButtonState

When clicking the submit button, in order to prevent the user from clicking the button all the time, send a request. Before the request returns a result, add pointer-events: none to the button to prevent this situation. This situation is also very common in business.

<!--CSS-->
 .j-pro{
     pointer-events: none;
 }
 <!--HTML-->
 <button r-model={this.submit()} r-class={{"j-pro": flag}}>提交</button>
 <!--JS-->
 submit: function(){
     this.data.flag = true;
     this.$request(url, {
         // ...
         onload: function(json){
             if(json.retCode == 200){
                 this.data.flag = false;
             }
         }.bind(this)
         // ...
     });
 }

3. Prevent transparent elements and clickable elements from overlapping and not being clickable

In order to achieve some good-looking css effects in the display area of ​​some content, when there are other elements above the element to cover it, in order not to affect For the events of the lower element, adding pointer-events: none; to the covered element can be solved.

<!--CSS-->
 .layer{
     backround: linear-gradient(180deg, #fff, transparent);
 }
 .j-pro{
     poninter-events: none;
 }
 <!--HTML-->
 <ul>
     <li class="layer j-pro"></li>
     <li class="item"></li>
     <li class="item"></li>
     <li class="item"></li>
 </ul>

poninter-events Compatibility

I believe you have mastered the method after reading the case in this article. For more exciting things, please pay attention to php Other related articles on the Chinese website!

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