87 lines
2.2 KiB
Vue
87 lines
2.2 KiB
Vue
<template>
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<div class="dndflow">
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<div class="revueflow-wrapper" @drop="onDrop">
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<RevueFlow v-model="elements" @elementsRemove="onElementsRemove" @load="onLoad" @connect="onConnect" @dragover="onDragOver">
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<Controls />
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</RevueFlow>
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</div>
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<Sidebar />
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</div>
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</template>
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<script lang="ts">
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import RevueFlow, {
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addEdge,
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removeElements,
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Controls,
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OnLoadParams,
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Elements,
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Connection,
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Edge,
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ElementId,
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Node
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} from '../../src';
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import Sidebar from './Sidebar';
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import './dnd.css';
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import { defineComponent, ref } from 'vue';
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const DnDFlow = defineComponent({
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components: { RevueFlow, Controls, Sidebar },
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setup() {
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const revueFlowInstance = ref<OnLoadParams>();
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const elements = ref<Elements>([
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{
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id: '1',
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type: 'input',
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data: { label: 'input node' },
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position: { x: 250, y: 5 }
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}
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] as Elements);
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let id = 0;
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const getId = (): ElementId => `dndnode_${id++}`;
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const onDragOver = (event: DragEvent) => {
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event.preventDefault();
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if (event.dataTransfer) {
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event.dataTransfer.dropEffect = 'move';
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}
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};
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const onConnect = (params: Connection | Edge) => (elements.value = addEdge(params, elements.value as Elements));
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const onElementsRemove = (elementsToRemove: Elements) =>
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(elements.value = removeElements(elementsToRemove, elements.value as Elements));
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const onLoad = (instance: OnLoadParams) => (revueFlowInstance.value = instance);
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const onDrop = (event: DragEvent) => {
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event.preventDefault();
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if (revueFlowInstance.value) {
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console.log(event.dataTransfer?.getData('application/revueflow'));
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const type = event.dataTransfer?.getData('application/revueflow');
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const position = revueFlowInstance.value.project({ x: event.clientX, y: event.clientY - 40 });
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const newNode = {
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id: getId(),
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type,
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position,
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data: { label: `${type} node` }
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} as Node;
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elements.value.push(newNode);
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}
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};
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return {
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onConnect,
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onElementsRemove,
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onLoad,
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onDrop,
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onDragOver,
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elements
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};
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}
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});
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export default DnDFlow;
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</script>
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