97 lines
2.3 KiB
Vue
97 lines
2.3 KiB
Vue
<template lang="html">
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<!--use value for immutable, list for auto-updating children -->
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<draggable
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class="drag-area"
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:value="children"
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:group="group"
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:animation="200"
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:move="move"
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ghost-class="ghost"
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draggable=".item"
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handle=".handle"
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@change="change"
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>
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<tree-node
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v-for="child in children"
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:key="child.node._id"
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class="item"
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:node="child.node"
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:children="child.children"
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:group="group"
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:selected-node-id="selectedNodeId"
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:selected="selectedNodeId === child.node._id"
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:organize="organize"
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:lazy="lazy"
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@selected="e => $emit('selected', e)"
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@reordered="e => $emit('reordered', e)"
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@reorganized="e => $emit('reorganized', e)"
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@dragstart.native="e => e.dataTransfer.setData('cow', child.node && child.node.name)"
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/>
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</draggable>
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</template>
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<script>
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import draggable from 'vuedraggable';
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import TreeNode from '/imports/ui/components/tree/TreeNode.vue';
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import { isParentAllowed } from '/imports/api/parenting/parenting.js';
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export default {
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components: {
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draggable,
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TreeNode,
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},
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props: {
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node: Object,
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group: String,
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organize: Boolean,
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lazy: Boolean,
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children: {
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type: Array,
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default: () => [],
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},
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selectedNodeId: String,
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},
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data(){ return {
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expanded: false,
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}},
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computed: {
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hasChildren(){
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return this.children && this.children.length;
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},
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showExpanded(){
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return this.expanded && (this.organize || this.hasChildren)
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},
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},
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methods: {
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change({added, moved}){
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let event = moved || added;
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if (event){
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let doc = event.element.node;
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let newIndex;
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if (event.newIndex === 0){
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newIndex = 0;
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} else {
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let childBeforeNewIndex = this.children[event.newIndex - 1];
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newIndex = childBeforeNewIndex.node.order + 1;
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}
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if (moved){
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this.$emit('reordered', {doc, newIndex});
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} else if (added){
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this.$emit('reorganized', {doc, parent: this.node, newIndex});
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}
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}
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},
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move(evt){
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let parentNode = evt.relatedContext.component.$parent.node
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let parentType = parentNode && parentNode.type || 'root';
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let childType = evt.draggedContext.element.node.type;
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let allowed = isParentAllowed({parentType, childType});
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return allowed;
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},
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},
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};
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</script>
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<style lang="css" scoped>
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</style>
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