update(examples): Add Unidirectional and updatable edge example

2021-10-22 10:46:54 +02:00
parent 3ee3843af6
commit 0cc7ef4805
4 changed files with 297 additions and 0 deletions
@@ -0,0 +1,204 @@
+<script lang="ts" setup>
+import CustomNode from './CustomNode.vue'
+import Flow, {
+  NodeType,
+  addEdge,
+  useZoomPanHelper,
+  Elements,
+  Connection,
+  Edge,
+  ElementId,
+  Node,
+  ConnectionLineType,
+  ConnectionMode,
+  updateEdge,
+  ArrowHeadType,
+} from '~/index'
+
+const initialElements: Elements = [
+  {
+    id: '00',
+    type: 'custom',
+    position: { x: 300, y: 250 },
+  },
+  {
+    id: '01',
+    type: 'custom',
+    position: { x: 100, y: 50 },
+  },
+  {
+    id: '02',
+    type: 'custom',
+    position: { x: 500, y: 50 },
+  },
+  {
+    id: '03',
+    type: 'custom',
+    position: { x: 500, y: 500 },
+  },
+  {
+    id: '04',
+    type: 'custom',
+    position: { x: 100, y: 500 },
+  },
+  {
+    id: '10',
+    type: 'custom',
+    position: { x: 300, y: 5 },
+  },
+  {
+    id: '20',
+    type: 'custom',
+    position: { x: 600, y: 250 },
+  },
+  {
+    id: '30',
+    type: 'custom',
+    position: { x: 300, y: 600 },
+  },
+  {
+    id: '40',
+    type: 'custom',
+    position: { x: 5, y: 250 },
+  },
+  {
+    id: 'e0-1a',
+    source: '00',
+    target: '01',
+    sourceHandle: 'left',
+    targetHandle: 'bottom',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-1b',
+    source: '00',
+    target: '01',
+    sourceHandle: 'top',
+    targetHandle: 'right',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-2a',
+    source: '00',
+    target: '02',
+    sourceHandle: 'top',
+    targetHandle: 'left',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-2b',
+    source: '00',
+    target: '02',
+    sourceHandle: 'right',
+    targetHandle: 'bottom',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-3a',
+    source: '00',
+    target: '03',
+    sourceHandle: 'right',
+    targetHandle: 'top',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-3b',
+    source: '00',
+    target: '03',
+    sourceHandle: 'bottom',
+    targetHandle: 'left',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-4a',
+    source: '00',
+    target: '04',
+    sourceHandle: 'bottom',
+    targetHandle: 'right',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-4b',
+    source: '00',
+    target: '04',
+    sourceHandle: 'left',
+    targetHandle: 'top',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-10',
+    source: '00',
+    target: '10',
+    sourceHandle: 'top',
+    targetHandle: 'bottom',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-20',
+    source: '00',
+    target: '20',
+    sourceHandle: 'right',
+    targetHandle: 'left',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-30',
+    source: '00',
+    target: '30',
+    sourceHandle: 'bottom',
+    targetHandle: 'top',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+  {
+    id: 'e0-40',
+    source: '00',
+    target: '40',
+    sourceHandle: 'left',
+    targetHandle: 'right',
+    type: 'smoothstep',
+    arrowHeadType: ArrowHeadType.Arrow,
+  },
+] as Elements
+
+const nodeTypes: Record<string, NodeType> = {
+  custom: CustomNode,
+}
+
+let id = 4
+const getId = (): ElementId => `${id++}`
+
+const elements = ref(initialElements)
+const onConnect = (params: Connection | Edge) => (elements.value = addEdge({ ...params, type: 'smoothstep' }, elements.value))
+const { project } = useZoomPanHelper()
+const onEdgeUpdate = (oldEdge: Edge, newConnection: Connection) =>
+  (elements.value = updateEdge(oldEdge, newConnection, elements.value))
+
+const onPaneClick = (evt: MouseEvent) =>
+  (elements.value = elements.value.concat({
+    id: getId(),
+    position: project({ x: evt.clientX, y: evt.clientY - 40 }),
+    type: 'custom',
+  } as Node))
+</script>
+<template>
+  <Flow
+    :elements="elements"
+    :node-types="nodeTypes"
+    :connection-line-type="ConnectionLineType.SmoothStep"
+    :connection-mode="ConnectionMode.Loose"
+    @connect="onConnect"
+    @pane-click="onPaneClick"
+    @edge-pdate="onEdgeUpdate"
+  />
+</template>