83 lines
2.6 KiB
Vue
83 lines
2.6 KiB
Vue
<script lang="ts" setup>
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import Flow, {
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MiniMap,
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Controls,
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Background,
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Connection,
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Edge,
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Elements,
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FlowElement,
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FlowInstance,
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addEdge,
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isNode,
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removeElements,
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Node,
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} from '~/index'
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const onNodeDragStop = ({ node }: { node: Node }) => console.log('drag stop', node)
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const onElementClick = ({ node }: { node: Node }) => console.log('click', node)
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const elements = ref<Elements>([
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{ id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 } },
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{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 } },
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{ id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 } },
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{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 } },
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{ id: 'e1-2', source: '1', target: '2', animated: true },
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{ id: 'e1-3', source: '1', target: '3' },
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] as Elements)
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const rfInstance = ref<FlowInstance | null>(null)
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const onElementsRemove = (elementsToRemove: Elements) =>
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(elements.value = removeElements(elementsToRemove, elements.value as Elements))
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const onConnect = (params: Edge | Connection) => (elements.value = addEdge(params, elements.value as Elements))
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const onLoad = (flowInstance: FlowInstance) => {
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flowInstance.fitView({ padding: 0.1 })
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rfInstance.value = flowInstance
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}
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const updatePos = () => {
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elements.value = elements.value.map((el: FlowElement) => {
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if (isNode(el)) {
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el.position = {
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x: Math.random() * 400,
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y: Math.random() * 400,
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}
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}
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return el
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})
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}
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const logToObject = () => console.log(rfInstance.value?.toObject())
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const resetTransform = () => rfInstance.value?.setTransform({ x: 0, y: 0, zoom: 1 })
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const toggleClassnames = () => {
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elements.value = elements.value.map((el: FlowElement) => {
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if (isNode(el)) el.className = el.className === 'light' ? 'dark' : 'light'
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return el
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})
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}
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</script>
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<template>
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<Flow
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class="vue-flow-basic-example"
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:elements="elements"
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:default-zoom="1.5"
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:min-zoom="0.2"
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:max-zoom="4"
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@elements-remove="onElementsRemove"
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@connect="onConnect"
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@node-drag-stop="onNodeDragStop"
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@node-click="onElementClick"
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@elementClick="onElementClick"
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@load="onLoad"
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>
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<MiniMap />
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<Controls />
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<Background color="#aaa" :gap="8" />
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<div style="position: absolute; right: 10px; top: 10px; z-index: 4">
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<button style="margin-right: 5px" @click="resetTransform">reset transform</button>
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<button style="margin-right: 5px" @click="updatePos">change pos</button>
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<button style="margin-right: 5px" @click="toggleClassnames">toggle classnames</button>
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<button @click="logToObject">toObject</button>
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</div>
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</Flow>
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</template>
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