54 lines
1.3 KiB
Vue
54 lines
1.3 KiB
Vue
<script lang="ts" setup>
|
|
import Sidebar from './Sidebar.vue'
|
|
import { VueFlow, Controls, FlowInstance, Node, useVueFlow, useElementsState } from '~/index'
|
|
|
|
let id = 0
|
|
const getId = () => `dndnode_${id++}`
|
|
|
|
const flowInstance = ref<FlowInstance>()
|
|
|
|
const { onPaneReady, onConnect } = useVueFlow()
|
|
const { nodes, edges, addEdges, addNodes } = useElementsState({
|
|
nodes: [
|
|
{
|
|
id: '1',
|
|
type: 'input',
|
|
label: 'input node',
|
|
position: { x: 250, y: 5 },
|
|
},
|
|
],
|
|
})
|
|
onPaneReady((instance) => (flowInstance.value = instance))
|
|
const onDragOver = (event: DragEvent) => {
|
|
event.preventDefault()
|
|
if (event.dataTransfer) {
|
|
event.dataTransfer.dropEffect = 'move'
|
|
}
|
|
}
|
|
|
|
onConnect((params) => addEdges([params]))
|
|
|
|
const onDrop = (event: DragEvent) => {
|
|
if (flowInstance.value) {
|
|
const type = event.dataTransfer?.getData('application/vueflow')
|
|
const position = flowInstance.value.project({ x: event.clientX, y: event.clientY - 40 })
|
|
const newNode = {
|
|
id: getId(),
|
|
type,
|
|
position,
|
|
label: `${type} node`,
|
|
} as Node
|
|
addNodes([newNode])
|
|
}
|
|
}
|
|
</script>
|
|
<template>
|
|
<div class="dndflow" @drop="onDrop">
|
|
<VueFlow @dragover="onDragOver" />
|
|
<Sidebar />
|
|
</div>
|
|
</template>
|
|
<style>
|
|
@import './dnd.css';
|
|
</style>
|