Merge branch 'next' into svelte-on-init

packages/svelte/src/lib/components/BaseEdge/BaseEdge.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
   import cc from 'classcat';
-  import { EdgeLabelRenderer } from '$lib/components/EdgeLabelRenderer';
   import type { BaseEdgeProps } from './types';
+  import EdgeLabel from '../EdgeLabel/EdgeLabel.svelte';
 
   type $$Props = BaseEdgeProps;
 
@@ -18,7 +18,6 @@
   let className: $$Props['class'] = undefined;
   export { className as class };
 
-  // @todo, why is interactionWidth undefined after first re-render?
   let interactionWidthValue = interactionWidth === undefined ? 20 : interactionWidth;
 </script>
 
@@ -43,13 +42,7 @@
 {/if}
 
 {#if label}
-  <EdgeLabelRenderer>
-    <div
-      class="svelte-flow__edge-label"
-      style:transform="translate(-50%, -50%) translate({labelX}px,{labelY}px)"
-      style={labelStyle}
-    >
-      {label}
-    </div>
-  </EdgeLabelRenderer>
+  <EdgeLabel x={labelX} y={labelY} style={labelStyle}>
+    {label}
+  </EdgeLabel>
 {/if}

packages/svelte/src/lib/components/EdgeLabel/EdgeLabel.svelte

@@ -0,0 +1,28 @@
+<script lang="ts">
+  import { getContext } from 'svelte';
+
+  import { EdgeLabelRenderer } from '$lib/components/EdgeLabelRenderer';
+  import { useHandleEdgeSelect } from '$lib/hooks/useHandleEdgeSelect';
+  import type { BaseEdgeProps } from '$lib/components/BaseEdge/types';
+
+  export let style: BaseEdgeProps['labelStyle'] = undefined;
+  export let x: BaseEdgeProps['labelX'] = undefined;
+  export let y: BaseEdgeProps['labelY'] = undefined;
+
+  const handleEdgeSelect = useHandleEdgeSelect();
+
+  const id = getContext<string>('svelteflow__edge_id');
+</script>
+
+<EdgeLabelRenderer>
+  <div
+    class="svelte-flow__edge-label"
+    style:transform="translate(-50%, -50%) translate({x}px,{y}px)"
+    style={'pointer-events: all;' + style}
+    on:click={() => {
+      if (id) handleEdgeSelect(id);
+    }}
+  >
+    <slot />
+  </div>
+</EdgeLabelRenderer>

packages/svelte/src/lib/components/EdgeLabel/index.ts

@@ -0,0 +1 @@
+export { default as EdgeLabel } from './EdgeLabel.svelte';

packages/svelte/src/lib/components/EdgeWrapper/EdgeWrapper.svelte

@@ -1,14 +1,14 @@
 <svelte:options immutable />
 
 <script lang="ts">
+  import { createEventDispatcher, setContext } from 'svelte';
   import cc from 'classcat';
-  import { createEventDispatcher } from 'svelte';
-  import { errorMessages, getMarkerId } from '@xyflow/system';
+  import { getMarkerId } from '@xyflow/system';
 
   import { useStore } from '$lib/store';
   import { BezierEdgeInternal } from '$lib/components/edges';
   import type { EdgeLayouted, Edge } from '$lib/types';
-  import { get } from 'svelte/store';
+  import { useHandleEdgeSelect } from '$lib/hooks/useHandleEdgeSelect';
 
   type $$Props = EdgeLayouted;
 
@@ -22,7 +22,6 @@
 
   export let animated: $$Props['animated'] = false;
   export let selected: $$Props['selected'] = false;
-  export let selectable: $$Props['selectable'] = true;
   export let hidden: $$Props['hidden'] = false;
   export let label: $$Props['label'] = undefined;
   export let labelStyle: $$Props['labelStyle'] = undefined;
@@ -43,16 +42,9 @@
   let className: string = '';
   export { className as class };
 
-  const {
-    edges,
-    edgeTypes,
-    flowId,
-    selectionRect,
-    selectionRectMode,
-    multiselectionKeyPressed,
-    addSelectedEdges,
-    unselectNodesAndEdges
-  } = useStore();
+  setContext('svelteflow__edge_id', id);
+
+  const { edgeLookup, edgeTypes, flowId } = useStore();
   const dispatch = createEventDispatcher<{
     edgeclick: { edge: Edge; event: MouseEvent | TouchEvent };
     edgecontextmenu: { edge: Edge; event: MouseEvent };
@@ -62,30 +54,19 @@
   $: markerStartUrl = markerStart ? `url(#${getMarkerId(markerStart, $flowId)})` : undefined;
   $: markerEndUrl = markerEnd ? `url(#${getMarkerId(markerEnd, $flowId)})` : undefined;
 
+  const handleEdgeSelect = useHandleEdgeSelect();
+
   function onClick(event: MouseEvent | TouchEvent) {
-    const edge = $edges.find((e) => e.id === id);
+    const edge = $edgeLookup.get(id);
 
-    if (!edge) {
-      console.warn('012', errorMessages['error012'](id));
-      return;
+    if (edge) {
+      handleEdgeSelect(id);
+      dispatch('edgeclick', { event, edge });
     }
-
-    if (selectable) {
-      selectionRect.set(null);
-      selectionRectMode.set(null);
-
-      if (!edge.selected) {
-        addSelectedEdges([id]);
-      } else if (edge.selected && get(multiselectionKeyPressed)) {
-        unselectNodesAndEdges({ nodes: [], edges: [edge] });
-      }
-    }
-
-    dispatch('edgeclick', { event, edge });
   }
 
   function onContextMenu(event: MouseEvent) {
-    const edge = $edges.find((e) => e.id === id);
+    const edge = $edgeLookup.get(id);
 
     if (edge) {
       dispatch('edgecontextmenu', { event, edge });

packages/svelte/src/lib/components/Handle/Handle.svelte

@@ -126,6 +126,10 @@
   // @todo implement connectablestart, connectableend
 </script>
 
+<!--
+@component
+The Handle component is the part of a node that can be used to connect nodes.
+-->
 <div
   data-handleid={handleId}
   data-nodeid={nodeId}