vue-flow/.changeset/five-readers-teach.md

@vue-flow/core

@vue-flow/core
patch

Add EdgeLabelRenderer component export

Usage

• You can use the EdgeLabelRenderer component to render the label of an edge outside the SVG context of edges.
• The EdgeLabelRenderer component is a component that handles teleporting your edge label into a HTML context
• This is useful if you want to use HTML elements in your edge label, like buttons

<script lang="ts" setup>
import type { EdgeProps, Position } from '@vue-flow/core'
import { EdgeLabelRenderer, getBezierPath, useVueFlow } from '@vue-flow/core'
import type { CSSProperties } from 'vue'

interface CustomEdgeProps<T = any> extends EdgeProps<T> {
  id: string
  sourceX: number
  sourceY: number
  targetX: number
  targetY: number
  sourcePosition: Position
  targetPosition: Position
  data: T
  markerEnd: string
  style: CSSProperties
}

const props = defineProps<CustomEdgeProps>()

const { removeEdges } = useVueFlow()

const path = $computed(() => getBezierPath(props))
</script>

<script lang="ts">
export default {
  inheritAttrs: false,
}
</script>

<template>
  <path :id="id" :style="style" class="vue-flow__edge-path" :d="path[0]" :marker-end="markerEnd" />

  <EdgeLabelRenderer>
    <div
      :style="{
        pointerEvents: 'all',
        position: 'absolute',
        transform: `translate(-50%, -50%) translate(${path[1]}px,${path[2]}px)`,
      }"
      class="nodrag nopan"
    >
      <button class="edgebutton" @click="removeEdges([id])">×</button>
    </div>
  </EdgeLabelRenderer>
</template>

<style>
.edgebutton {
  border-radius: 999px;
  cursor: pointer;
}
.edgebutton:hover {
  box-shadow: 0 0 0 2px pink, 0 0 0 4px #f05f75;
}
</style>