Vue实现开关按钮拖拽效果
编程学习 2021-07-04 14:06www.dzhlxh.cn编程入门
这篇文章主要为大家详细介绍了Vue实现开关按钮拖拽效果，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了Vue实现开关按钮拖拽效果的具体代码，供大家参考，具体内容如下
css:
<style>
.box {
position: absolute;
left: 100px;
top: 100px;
width: 100px;
height: 100px;
background: red;
}
.box2 {
position: absolute;
left: 400px;
top: 100px;
width: 100px;
height: 100px;
background: green;
}
</style>
html:
<div id="app">
<div class="box" v-drag="isDrag"></div>
<div class="box2" v-drag:fn.limit.b="isDrag"></div>
<button @click="isDrag = !isDrag">{{isDrag}}</button>
</div>
js:
<script src="vue.js"></script>
<script>
// 组件
Vue.directive('drag', {
bind(el, {value, arg, modifiers}) {
console.log(value, arg, modifiers)
el._value = value;
el._isDrag = false;
el.addEventListener('mousedown', function(e) {
if (!el._value) return;
el._isDrag = true;
el._x = e.clientX - el.offsetLeft;
el._y = e.clientY - el.offsetTop;
e.preventDefault();
});
document.addEventListener('mousemove', function(e) {
if (el._isDrag) {
let l = e.clientX - el._x;
let t = e.clientY - el._y;
if (modifiers.limit) {
if (l < 0) {
l = 0;
}
if (t < 0) {
t = 0;
}
}
el.style.left = l + 'px';
el.style.top = t + 'px';
}
});
document.addEventListener('mouseup', function(e) {
el._isDrag = false;
});
},
componentUpdated(el, {value}) {
console.log('更新了', value);
el._value = value;
}
});
let app = new Vue({
el: '#app',
data: {
isDrag: false
}
});
</script>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持狼蚁SEO。