vue指令实现拖拽

最新推荐文章于 2025-04-02 22:06:05 发布

常德_威少

最新推荐文章于 2025-04-02 22:06:05 发布

阅读量136

点赞数

分类专栏： vue 文章标签： vue js javascript html css

原文链接：https://www.cnblogs.com/r-mp/p/11224156.html

版权

vue 专栏收录该内容

1 篇文章

订阅专栏

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0
        }

        .box {
            width: 100px;
            height: 100px;
            background: red;
        }
    </style>
</head>

<body>
    <div id="app">
        <div class="box" v-drag="flag"></div>
    </div>
    <div data-id="0" id="box"></div>
</body>

</html>
<script src="./增、删、改//vue.js"></script>
<script>
    Vue.directive("drag", (el, { modifiers, value }) => {
        el.style.position = "absolute";
        let { x, y } = modifiers;
        el.addEventListener("mousedown", donw);
        var disX, disY;
        function donw(e) {
            disX = e.offsetX;
            disY = e.offsetY;
            document.addEventListener("mousemove", move);
            document.addEventListener("mouseup", up)
        }
        function move(e) {
            var l = e.clientX - disX;
            var t = e.clientY - disY;
            if (value) {
                if (x) {
                    el.style.left = l + 'px';
                }
                if (y) {
                    el.style.top = t + 'px';
                }
                if (x && y || (!x && !y)) {
                    el.style.left = l + 'px';
                    el.style.top = t + 'px';
                }
            }
        }
        function up(e) {
            document.removeEventListener("mousemove", move);
            document.removeEventListener("mouseup", up);
        }
    })
    new Vue({
        el: "#app",
        data: {
            flag: true,
            msg: "123"
        }
    })
</script>