feat(svelte): make edges selectable

packages/svelte/src/lib/actions/drag/utils.ts

@@ -108,7 +108,7 @@ export function calcNextPosition(
             ]
           : currentExtent;
     } else {
-      devWarn('005', errorMessages['005']());
+      devWarn('005', errorMessages['error005']());
       currentExtent = nodeExtent;
     }
   } else if (node.extent && node.parentNode) {

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

@@ -14,7 +14,6 @@
   export let markerEnd: $$Props['markerEnd'] = undefined;
   export let style: $$Props['style'] = undefined;
   export let interactionWidth: $$Props['interactionWidth'] = 20;
-
 </script>
 
 <path

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

@@ -23,6 +23,7 @@
   export let targetPosition: $$Props['targetPosition'] = Position.Top;
   export let animated: $$Props['animated'] = false;
   export let selected: $$Props['selected'] = false;
+  export let selectable: $$Props['selectable'] = true;
   export let label: $$Props['label'] = undefined;
   export let labelStyle: $$Props['labelStyle'] = undefined;
   export let markerStart: $$Props['markerStart'] = undefined;
@@ -32,7 +33,7 @@
   
    // @ todo: support edge updates
 
-  const { edges, edgeTypes, flowId } = useStore();
+  const { edges, edgeTypes, flowId, addSelectedEdges } = useStore();
   const dispatch = createEventDispatcher();
 
   const edgeComponent: typeof SvelteComponentTyped<EdgeProps> = $edgeTypes[type!] || BezierEdge;
@@ -41,6 +42,10 @@
   $: markerEndUrl = markerEnd ? `url(#${getMarkerId(markerEnd, $flowId)})` : undefined;
 
   function onClick() {
+    if (selectable) {
+      addSelectedEdges([id]);
+    }
+
     const edge = $edges.find(e => e.id === id);
     dispatch('edge:click', edge);
   }
@@ -50,6 +55,7 @@
 <g
   class="svelte-flow__edge"
   class:animated
+  class:selected
   data-id={id}
   on:click={onClick}
 >
@@ -83,13 +89,17 @@
     cursor: pointer;
   }
 
-  .svelte-flow__edge :global(path) {
+  .svelte-flow__edge :global(.svelte-flow__edge-path) {
     stroke: #ccc;
     stroke-width: 1;
     fill: none;
   }
 
-  .animated :global(path) {
+  .selected :global(.svelte-flow__edge-path) {
+    stroke: #555;
+  }
+
+  .animated :global(.svelte-flow__edge-path) {
     stroke-dasharray: 5;
     animation: dashdraw 0.5s linear infinite;
   }

packages/svelte/src/lib/components/NodeWrapper/NodeWrapper.svelte

@@ -15,6 +15,7 @@
   export let data: NodeWrapperProps['data'] = {};
   export let selected: NodeWrapperProps['selected'] = false;
   export let draggable: NodeWrapperProps['draggable'] = undefined;
+  export let selectable: NodeWrapperProps['selectable'] = undefined;
   export let connectable: NodeWrapperProps['connectable'] = true;
   export let dragging: boolean = false;
   export let resizeObserver: NodeWrapperProps['resizeObserver'] = null;
@@ -36,13 +37,12 @@
   const nodeTypeValid = !!$nodeTypes[type!];
 
   if (!nodeTypeValid) {
-    console.warn('003', errorMessages['003'](type!));
+    console.warn('003', errorMessages['error003'](type!));
     type = 'default';
   }
 
   const nodeComponent: typeof SvelteComponentTyped<Partial<NodeProps>> =
     $nodeTypes[type!] || DefaultNode;
-  const isSelectable = true;
   const selectNodesOnDrag = false;
   const dispatch = createEventDispatcher();
 
@@ -63,7 +63,7 @@
   }
 
   function onSelectNodeHandler(event: MouseEvent) {
-    if (isSelectable && (!selectNodesOnDrag || !draggable)) {
+    if (selectable && (!selectNodesOnDrag || !draggable)) {
       // this handler gets called within the drag start event when selectNodesOnDrag=true
       addSelectedNodes([id]);
     }

packages/svelte/src/lib/components/NodeWrapper/types.ts

@@ -11,6 +11,7 @@ export type NodeWrapperProps = Pick<
   | 'dragging'
   | 'positionAbsolute'
   | 'selected'
+  | 'selectable'
   | 'style'
   | 'type'
   | 'width'

packages/svelte/src/lib/container/NodeRenderer/NodeRenderer.svelte

@@ -39,6 +39,7 @@
       data={node.data}
       selected={node.selected}
       draggable={node.draggable || node.draggable === undefined}
+      selectable={node.selectable || node.selectable === undefined}
       connectable={node.connectable || node.connectable === undefined}
       positionAbsolute={node.positionAbsolute}
       positionOrigin={posOrigin}

packages/svelte/src/lib/store/edges-layouted.ts

@@ -45,6 +45,7 @@ export function getEdgesLayouted(store: SvelteFlowStoreState) {
 
       res.push({
         ...edge,
+        selectable: edge.selectable || typeof edge.selectable === 'undefined',
         type: edgeType,
         sourceX,
         sourceY,

packages/svelte/src/lib/store/index.ts

@@ -251,6 +251,21 @@ export function createStore(params: CreateStoreParams): SvelteFlowStore {
     );
   }
 
+  function addSelectedEdges(ids: string[]) {
+    if (get(store.multiselectionKeyPressed)) {
+      // @todo handle multiselection key
+    }
+
+    store.edges.update((edges) =>
+      edges.map((edge) => {
+        return {
+          ...edge,
+          selected: ids.includes(edge.id)
+        };
+      })
+    );
+  }
+
   function panBy(delta: XYPosition) {
     const { zoom: d3Zoom, selection: d3Selection } = get(store.d3);
     const transform = get(store.transform);
@@ -335,6 +350,7 @@ export function createStore(params: CreateStoreParams): SvelteFlowStore {
     setMaxZoom,
     resetSelectedElements,
     addSelectedNodes,
+    addSelectedEdges,
     panBy,
     updateConnection,
     cancelConnection,

packages/svelte/src/lib/store/types.ts

@@ -27,6 +27,7 @@ export type SvelteFlowStoreActions = {
   updateNodeDimensions: (updates: NodeDimensionUpdate[]) => void;
   resetSelectedElements: () => void;
   addSelectedNodes: (ids: string[]) => void;
+  addSelectedEdges: (ids: string[]) => void;
   panBy: (delta: XYPosition) => void;
   updateConnection: (connection: Partial<ConnectionData>) => void;
   cancelConnection: () => void;

packages/svelte/src/routes/overview/+page.svelte

@@ -34,7 +34,8 @@
       id: '2',
       type: 'default',
       data: { label: 'Node' },
-      position: { x: 0, y: 150 }
+      position: { x: 0, y: 150 },
+      selectable: false,
     },
     {
       id: 'A',
@@ -83,7 +84,8 @@
       id: '1-3',
       type: 'smoothstep',
       source: '1',
-      target: '3'
+      target: '3',
+      selectable: false
     },
     {
       id: '2-4',