<!DOCTYPE html>
<html>
<head>
<title>vue select2 封装</title>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="external nofollow" rel="stylesheet" />
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<style type="text/css">
.content{
text-align: center;
padding:50px;
}
.content *{
text-align: left;
}
.select{
width: 350px;
}
</style>
</head>
<body>
<div class="content" id="vue-example">
<select class="select" v-select2='options' v-model="selectValue"></select>
<br/>
<span>结果:{{ selectValue }}</span>
</div>
</body>
<script type="text/javascript">
Vue.directive('select2', {
inserted: function (el, binding, vnode) {
let options = binding.value || {};
$(el).select2(options).on("select2:select", (e) => {
// v-model looks for
// - an event named "change"
// - a value with property path "$event.target.value"
el.dispatchEvent(new Event('change', { target: e.target })); //说好的双向绑定,竟然不安套路
});
},
update: function(el, binding, vnode) {
$(el).trigger("change");
}
});
var vueApp = new Vue({
el: "#vue-example",
data: {
selectValue: '你还没有选值',
options: {
data: [
{ id: 0, text: 'enhancement' },
{ id: 1, text: 'bug' },
{ id: 2, text: 'duplicate' },
{ id: 3, text: 'invalid' },
{ id: 4, text: 'wontfix' }
]
}
}
});
</script>
</html>
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