Mouseover or hover vue.js

2020-05-11 10:50发布

站内问答 / JavaScript
740 11 4

I would like to show a div when hovering over an element in vue.js. But I can't seem to get it working.

It looks like there is no event for hover or mouseover in vue.js. Is this really true?

Would it be possible to combine jquery hover and vue methods?

11条回答
不美不萌又怎样
2楼-- · 2020-05-11 11:22

There's no need for a method here.

HTML

<div v-if="active">
    <h2>Hello World!</h2>
 </div>

 <div v-on:mouseover="active = !active">
    <h1>Hover me!</h1>
 </div>

JS

new Vue({
  el: 'body',
  data: {
    active: false
  }
})
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傲
3楼-- · 2020-05-11 11:23

With mouseover only the element stays visible when mouse leaves the hovered element, so I added this:

@mouseover="active = !active" @mouseout="active = !active"

<script>
export default {
  data(){
   return {
     active: false
   }
 }
</script>
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叼着烟拽天下
4楼-- · 2020-05-11 11:28

Here is a working example of what I think you are asking for.

http://jsfiddle.net/1cekfnqw/3017/

 <div id="demo">
        <div v-show="active">Show</div>
        <div @mouseover="mouseOver">Hover over me!</div>
    </div>

var demo = new Vue({
    el: '#demo',
    data: {
        active: false
    },
    methods: {
        mouseOver: function(){
            this.active = !this.active;   
        }
    }
});
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等我变得足够好
5楼-- · 2020-05-11 11:29

Please take a look at the vue-mouseover package if you are not satisfied how does this code look:

<div
    @mouseover="isMouseover = true"
    @mouseleave="isMouseover = false"
/>

vue-mouseover provides a v-mouseover directive that automaticaly updates the specified data context property when the cursor enters or leaves an HTML element the directive is attached to.

By default in the next example isMouseover property will be true when the cursor is over an HTML element and false otherwise:

<div v-mouseover="isMouseover" />

Also by default isMouseover will be initially assigned when v-mouseover is attached to the div element, so it will not remain unassigned before the first mouseenter/mouseleave event.

You can specify custom values via v-mouseover-value directive:

<div
    v-mouseover="isMouseover"
    v-mouseover-value="customMouseenterValue"/>

or

<div
    v-mouseover="isMouseover"
    v-mouseover-value="{
        mouseenter: customMouseenterValue,
        mouseleave: customMouseleaveValue
    }"
/>

Custom default values can be passed to the package via options object during setup.

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Lonely孤独者°
6楼-- · 2020-05-11 11:31

To show child or sibling elements it's possible with CSS only. If you use :hover before combinators (+, ~, >, space). Then the style applies not to hovered element.

HTML

<body>
  <div class="trigger">
    Hover here.
  </div>
  <div class="hidden">
    This message shows up.
  </div>
</body>

CSS

.hidden { display: none; }
.trigger:hover + .hidden { display: inline; }
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