Files
vue-flow/packages/core/src/container/NodeRenderer/NodeRenderer.vue
T

108 lines
2.9 KiB
Vue

<script lang="ts" setup>
import { NodeWrapper } from '../../components'
import type { GraphNode, HandleConnectable, NodeComponent } from '../../types'
const slots = inject(Slots)
const {
nodesDraggable,
nodesFocusable,
elementsSelectable,
nodesConnectable,
getNodes,
getNodeTypes,
updateNodeDimensions,
emits,
} = $(useVueFlow())
const draggable = (d?: boolean) => (typeof d === 'undefined' ? nodesDraggable : d)
const selectable = (s?: boolean) => (typeof s === 'undefined' ? elementsSelectable : s)
const connectable = (c?: HandleConnectable) => (typeof c === 'undefined' ? nodesConnectable : c)
const focusable = (f?: boolean) => (typeof f === 'undefined' ? nodesFocusable : f)
const resizeObserver = ref<ResizeObserver>()
onMounted(() => {
const readyNodes = []
let initialized = false
const isReady = (id: string) => {
readyNodes.push(id)
if (readyNodes.length === getNodes.length) {
nextTick(() => {
initialized = true
emits.nodesInitialized()
})
}
}
resizeObserver.value = new ResizeObserver((entries) => {
const updates = entries.map((entry: ResizeObserverEntry) => {
const id = entry.target.getAttribute('data-id') as string
// if nodes initialized hasn't been emitted yet, add the node to the readyNodes array
if (!initialized) isReady(id)
return {
id,
nodeElement: entry.target as HTMLDivElement,
}
})
updateNodeDimensions(updates)
})
})
onBeforeUnmount(() => resizeObserver.value?.disconnect())
const getType = (type?: string, template?: GraphNode['template']) => {
const name = type || 'default'
let nodeType = template ?? getNodeTypes[name]
const instance = getCurrentInstance()
if (typeof nodeType === 'string') {
if (instance) {
const components = Object.keys(instance.appContext.components)
if (components && components.includes(name)) {
nodeType = resolveComponent(name, false) as NodeComponent
}
}
}
if (typeof nodeType !== 'string') return nodeType
const slot = slots?.[`node-${name}`]
if (!slot?.({})) {
warn(`Node type "${type}" not found and no node-slot detected. Using fallback type "default".`)
return false
}
return slot
}
</script>
<script lang="ts">
export default {
name: 'Nodes',
}
</script>
<template>
<div class="vue-flow__nodes vue-flow__container">
<template v-if="resizeObserver">
<NodeWrapper
v-for="node of getNodes"
:id="node.id"
:key="node.id"
:resize-observer="resizeObserver"
:type="getType(node.type, node.template)"
:name="node.type || 'default'"
:draggable="draggable(node.draggable)"
:selectable="selectable(node.selectable)"
:connectable="connectable(node.connectable)"
:focusable="focusable(node.focusable)"
:node="node"
/>
</template>
</div>
</template>