{"id":18905067,"url":"https://github.com/kenberkeley/vue-drag-drop-sort-demo","last_synced_at":"2025-04-15T04:12:44.794Z","repository":{"id":143891853,"uuid":"73776403","full_name":"kenberkeley/vue-drag-drop-sort-demo","owner":"kenberkeley","description":"Vue demo for drag drop sort (for Vue.js 2.x see https://github.com/kenberkeley/vue2-drag-and-drop-demo)","archived":false,"fork":false,"pushed_at":"2018-01-10T08:15:43.000Z","size":5,"stargazers_count":40,"open_issues_count":0,"forks_count":12,"subscribers_count":4,"default_branch":"master","last_synced_at":"2025-04-15T04:12:40.990Z","etag":null,"topics":["dnd","drag","drop","vue"],"latest_commit_sha":null,"homepage":"","language":"Vue","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/kenberkeley.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2016-11-15T04:33:57.000Z","updated_at":"2023-03-29T03:48:54.000Z","dependencies_parsed_at":null,"dependency_job_id":"bad7ba7f-ac43-4c65-b8d0-ad3b345e8231","html_url":"https://github.com/kenberkeley/vue-drag-drop-sort-demo","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kenberkeley%2Fvue-drag-drop-sort-demo","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kenberkeley%2Fvue-drag-drop-sort-demo/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kenberkeley%2Fvue-drag-drop-sort-demo/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kenberkeley%2Fvue-drag-drop-sort-demo/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/kenberkeley","download_url":"https://codeload.github.com/kenberkeley/vue-drag-drop-sort-demo/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":249003956,"owners_count":21196793,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["dnd","drag","drop","vue"],"created_at":"2024-11-08T09:10:34.662Z","updated_at":"2025-04-15T04:12:44.788Z","avatar_url":"https://github.com/kenberkeley.png","language":"Vue","funding_links":[],"categories":[],"sub_categories":[],"readme":"For Vue.js 2.x see https://github.com/kenberkeley/vue2-drag-and-drop-demo\r\n\r\n***\r\n\r\n# Vue Demo : Drag + Drop + Sort ([JS Bin](http://jsbin.com/gupebi/embed?html,js,output))\r\nThanks to [@bramblex](https://github.com/bramblex), the original post is [here](https://www.v2ex.com/t/300047)\r\n\r\n`TreeNode.vue` ↓↓↓ (Practical usage: [vue-datatable-component - HeaderSettings.vue](https://github.com/kenberkeley/vue-datatable-component/blob/master/src/DataTable/HeaderSettings.vue))\r\n\r\n```vue\r\n\u003ctemplate\u003e\r\n  \u003c!-- [:draggable=\"{Boolean}\"] 空节点不能被拖动，判断依据是是否存在 node.name --\u003e\r\n  \u003c!-- [@dragover.prevent] 必须设置，否则浏览器默认是禁用拖动的 --\u003e\r\n  \u003cdiv class=\"tree-node\" :class=\"{ 'empty-node': !node.name }\"\r\n    :draggable=\"!!node.name\"\r\n    @dragover.prevent\r\n    @dragstart.stop=\"handleDragStart\"\r\n    @drop.stop=\"handleDrop\"\r\n    @dragenter.stop=\"handleDragEnter\"\r\n    @dragleave.stop=\"handleDragLeave\"\r\n    @dragend.prevent=\"handleDragEnd\"\u003e\r\n    {{ node.name }}\r\n    \u003cdiv v-if=\"children \u0026\u0026 children.length\" class=\"tree-node-children\"\u003e\r\n      \u003ctree-node v-for=\"child in children\"\r\n        :vm.sync=\"vm\" :node=\"child\" :idx=\"$index\"\u003e\r\n      \u003c/tree-node\u003e\r\n    \u003c/div\u003e\r\n  \u003c/div\u003e\r\n\u003c/template\u003e\r\n\u003cscript\u003e\r\nexport default {\r\n  name: 'tree-node', // 递归组件需指明 name\r\n  props: {\r\n    vm: { twoWay: true }, // 正在拖动的节点实例（TreeNode 组件通用，须双向绑定）\r\n    node: Object, // 节点数据，形如 { name: 'xxx', children: [] }\r\n    idx: Number // v-for 的索引，用于相邻节点的判别\r\n  },\r\n  computed: {\r\n    children () { // 为每个子节点前后都生成空节点，便于实现兄弟节点间的“插入排序”\r\n      // 举例：原本是 [N1, N2, N3]\r\n      let { children } = this.node\r\n      if (!children || !children.length) return []\r\n      \r\n      let _children = []\r\n      children.forEach(child =\u003e _children.push({}, child))\r\n      _children.push({})\r\n\r\n      // 最后生成 [E1, N1, E2, N2, E3, N3, E4]（其中 N 表示节点，E 表示空节点）\r\n      return _children\r\n    },\r\n    isParent () { // 拖放限制 1：判断“我”是否为被拖动节点的父节点\r\n      return this === this.vm.$parent\r\n    },\r\n    isNextToMe () { // 拖放限制 2：判断“我”是否为被拖动节点的相邻节点\r\n      return this.$parent === this.vm.$parent \u0026\u0026 Math.abs(this.idx - this.vm.idx) === 1\r\n    },\r\n    isMeOrMyAncestor () { // 拖放限制 3：判断被拖动节点是否为“我”自身或“我”的祖先\r\n      var p = this\r\n      while (p) {\r\n        if (this.vm === p) return true\r\n        p = p.$parent\r\n      }\r\n    },\r\n    isAllowToDrop () { // 上述拖放限制条件的综合\r\n      return !(this.isParent || this.isNextToMe || this.isMeOrMyAncestor)\r\n    }\r\n  },\r\n  methods: {\r\n    clearBgColor () { // 清理样式\r\n      this.$el.style.backgroundColor = ''\r\n    },\r\n    handleDragStart () {\r\n      this.vm = this // 设置本组件为当前正在拖动的实例，此举将同步 sync 到所有 TreeNode 实例\r\n      this.$el.style.backgroundColor = 'silver'\r\n    },\r\n    handleDrop () {\r\n      this.clearBgColor() // 此时 this 为目的地节点，vm 才是被拖动节点\r\n      if (!this.isAllowToDrop) return\r\n\r\n      // 无论如何都直接删除被拖动节点\r\n      this.vm.$parent.node.children.$remove(this.vm.node)\r\n\r\n      // 情况 1：拖入空节点，成其兄弟（使用 splice 插入节点）\r\n      if (!this.node.name)\r\n        return this.$parent.node.children.splice(this.idx / 2, 0, this.vm.node)\r\n\r\n      // 情况2：拖入普通节点，成为其子\r\n      if (!this.node.children) this.$set('node.children', []) // 须用 $set 引入双向绑定\r\n      this.node.children.push(this.vm.node)\r\n    },\r\n    handleDragEnter () { // 允许拖放才会显示样式\r\n      if (!this.isAllowToDrop) return\r\n      this.$el.style.backgroundColor = 'yellow'\r\n    },\r\n    handleDragLeave () {\r\n      this.clearBgColor()\r\n    },\r\n    handleDragEnd () {\r\n      this.clearBgColor()\r\n    }\r\n  }\r\n}\r\n\u003c/script\u003e\r\n\u003cstyle\u003e\r\n/* 普通节点 */\r\n.tree-node {\r\n  display: list-item;\r\n  list-style: none;\r\n  border-left: 1px dashed gray;\r\n}\r\n/* 空节点 */\r\n.tree-node.empty-node {\r\n  height: .5em;\r\n  list-style-type: none;\r\n}\r\n/* 层次缩进 */\r\n.tree-node-children {\r\n  margin-left: 2em;\r\n}\r\n\u003c/style\u003e\r\n```\r\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkenberkeley%2Fvue-drag-drop-sort-demo","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkenberkeley%2Fvue-drag-drop-sort-demo","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkenberkeley%2Fvue-drag-drop-sort-demo/lists"}