Merge pull request #5544 from xyflow/edge-toolbar

Add EdgeToolbar Component

examples/svelte/src/components/Header/Header.svelte

@@ -13,6 +13,7 @@
 		'detached-handle',
 		'drag-n-drop',
 		'edges',
+		'edge-toolbar',
 		'figma',
 		'handle-connect',
 		'interaction',

examples/svelte/src/routes/examples/edge-toolbar/+page.svelte

@@ -0,0 +1,60 @@
+<script lang="ts">
+	import { Background, Position, SvelteFlow, type Edge, type Node } from '@xyflow/svelte';
+
+	import '@xyflow/svelte/dist/style.css';
+
+	import CustomEdge from './CustomEdge.svelte';
+
+	const edgeTypes = {
+		custom: CustomEdge
+	};
+
+	const initialNodes: Node[] = [
+		{
+			id: '1',
+			data: { label: 'Node 1', toolbarPosition: Position.Top },
+			position: { x: 0, y: 0 },
+			class: 'svelte-flow__node-default'
+		},
+		{
+			id: '2',
+			data: { label: 'Node 2', toolbarPosition: Position.Top },
+			position: { x: 100, y: 150 },
+			class: 'svelte-flow__node-default'
+		},
+		{
+			id: '3',
+			data: { label: 'Node 3', toolbarPosition: Position.Top },
+			position: { x: 200, y: 0 },
+			class: 'svelte-flow__node-default'
+		}
+	];
+
+	const initialEdges: Edge[] = [
+		{
+			id: 'e1-2',
+			source: '1',
+			target: '2',
+			type: 'custom'
+		},
+		{
+			id: 'e3-2',
+			source: '3',
+			target: '2',
+			type: 'custom'
+		},
+		{
+			id: 'e1-3',
+			source: '1',
+			target: '3',
+			type: 'custom'
+		}
+	];
+
+	let nodes = $state.raw<Node[]>(initialNodes);
+	let edges = $state.raw<Edge[]>(initialEdges);
+</script>
+
+<SvelteFlow bind:nodes bind:edges {edgeTypes} fitView>
+	<Background />
+</SvelteFlow>

examples/svelte/src/routes/examples/edge-toolbar/CustomEdge.svelte

@@ -0,0 +1,26 @@
+<script lang="ts">
+	import { getBezierPath, BaseEdge, type EdgeProps, useSvelteFlow } from '@xyflow/svelte';
+	import { EdgeToolbar } from '@xyflow/svelte';
+
+	const { deleteElements } = useSvelteFlow();
+
+	let { id, sourceX, sourceY, targetX, targetY }: EdgeProps = $props();
+
+	let [edgePath, labelX, labelY] = $derived(
+		getBezierPath({
+			sourceX,
+			sourceY,
+			targetX,
+			targetY
+		})
+	);
+
+	const deleteEdge = () => {
+		deleteElements({ edges: [{ id }] });
+	};
+</script>
+
+<BaseEdge {id} path={edgePath} />
+<EdgeToolbar edgeId={id} x={labelX} y={labelY} isVisible>
+	<button onclick={deleteEdge}>Delete</button>
+</EdgeToolbar>