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feat(nodes): add option to pass a valid target pos / valid source pos func to nodes

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* edge updater cannot discern a valid connection by itself so we allow an option to pass a valid connection func to nodes which will then be used to determine if updating connection is valid
* it is optional, by default all connections are valid

Signed-off-by: Braks <78412429+bcakmakoglu@users.noreply.github.com>
This commit is contained in:
Braks
2021-11-25 15:21:36 +01:00
parent 95fc013613
commit 9e941966a4
13 changed files with 83 additions and 42 deletions
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examples/Validation/ValidationExample.vue
+15 -7
View File
@@ -1,24 +1,32 @@
<script lang="ts" setup>
import CustomInput from './CustomInput.vue'
import CustomNode from './CustomNode.vue'
import { VueFlow, addEdge, Connection, Elements, Edge, OnConnectStartParams, FlowInstance } from '~/index'
import { VueFlow, addEdge, Connection, Elements, OnConnectStartParams, FlowInstance } from '~/index'
import './validation.css'
const initialElements: Elements = [
{ id: '0', type: 'custominput', position: { x: 0, y: 150 } },
{ id: 'A', type: 'customnode', position: { x: 250, y: 0 } },
{ id: 'B', type: 'customnode', position: { x: 250, y: 150 } },
{ id: 'C', type: 'customnode', position: { x: 250, y: 300 } },
{ id: '0', type: 'custominput', position: { x: 0, y: 150 }, isValidTargetPos: (connection) => connection.target === 'B' },
{
id: 'A',
type: 'customnode',
position: { x: 250, y: 0 },
isValidSourcePos: (connection) => {
console.log(connection)
return false
},
},
{ id: 'B', type: 'customnode', position: { x: 250, y: 150 }, isValidSourcePos: (connection) => connection.target === 'B' },
{ id: 'C', type: 'customnode', position: { x: 250, y: 300 }, isValidSourcePos: (connection) => connection.target === 'B' },
]
const onLoad = (reactFlowInstance: FlowInstance) => reactFlowInstance.fitView()
const onLoad = (flowInstance: FlowInstance) => flowInstance.fitView()
const onConnectStart = ({ nodeId, handleType }: OnConnectStartParams) => console.log('on connect start', { nodeId, handleType })
const onConnectStop = (event: MouseEvent) => console.log('on connect stop', event)
const onConnectEnd = (event: MouseEvent) => console.log('on connect end', event)
const elements = ref<Elements>(initialElements)
const onConnect = (params: Connection | Edge) => {
const onConnect = (params: Connection) => {
console.log('on connect', params)
elements.value = addEdge(params, elements.value)
}