as the title: what is the trigger condition of appear-cancelled in Vue animation? What are the application scenarios? Thank you for the answer ~
as the title: what is the trigger condition of appear-cancelled in Vue animation? What are the application scenarios? Thank you for the answer ~
the following example is the perfect answer to your question
<template>
<div>
<transition
appear
v-on:before-appear="customBeforeAppearHook"
v-on:appear="customAppearHook"
v-on:after-appear="customAfterAppearHook"
v-on:appear-cancelled="customAppearCancelledHook">
<div ref="div" v-if="show">hello world</div>
</transition>
</div>
</template>
<script>
export default {
data(){
return {
show: true
}
},
methods: {
customBeforeAppearHook(val){
this.show = false
console.log('customBeforeAppearHook')
},
customAppearHook(val){
// this.show = false
console.log('customAppearHook')
},
customAfterAppearHook(val){
console.log('customAfterAppearHook')
},
customAppearCancelledHook(){
console.log('customAppearCancelledHook')
}
},
mounted(){
console.log('mounted')
}
}
</script>
to sum up, the trigger condition is customBeforeAppearHook / customAppearHook two hook functions that do not display the operation v-if / v-show will trigger the appear-cancelled hook function. There are not many actual scenes, and some operations can be performed after the animation is cancelled by the user during the execution of the animation.
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