[feat] Vue node lifecycle management implementation

Implements reactive position tracking, viewport culling, and event-driven
node management for Vue-based node rendering system.

Ready for demo and developer handoff.
This commit is contained in:
bymyself
2025-07-02 02:59:59 -07:00
parent 065e292b1c
commit 992d79b52f
11 changed files with 1002 additions and 253 deletions

View File

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/**
* Vue node lifecycle management for LiteGraph integration
* Provides event-driven reactivity with performance optimizations
*/
import type { LGraph, LGraphNode } from '@comfyorg/litegraph'
import { nextTick, reactive, readonly } from 'vue'
export interface NodeState {
visible: boolean
dirty: boolean
lastUpdate: number
culled: boolean
}
export interface NodeMetadata {
lastRenderTime: number
cachedBounds: DOMRect | null
lodLevel: 'high' | 'medium' | 'low'
spatialIndex?: any
}
export interface PerformanceMetrics {
frameTime: number
updateTime: number
nodeCount: number
culledCount: number
adaptiveQuality: boolean
}
export interface SafeWidgetData {
name: string
type: string
value: unknown
options?: Record<string, unknown>
callback?: ((value: unknown) => void) | undefined
}
export interface VueNodeData {
id: string
title: string
type: string
mode: number
selected: boolean
executing: boolean
widgets?: SafeWidgetData[]
inputs?: unknown[]
outputs?: unknown[]
}
export interface GraphNodeManager {
// Reactive state - safe data extracted from LiteGraph nodes
vueNodeData: ReadonlyMap<string, VueNodeData>
nodeState: ReadonlyMap<string, NodeState>
nodePositions: ReadonlyMap<string, { x: number; y: number }>
nodeSizes: ReadonlyMap<string, { width: number; height: number }>
// Access to original LiteGraph nodes (non-reactive)
getNode(id: string): LGraphNode | undefined
// Lifecycle methods
setupEventListeners(): () => void
cleanup(): void
// Update methods
scheduleUpdate(
nodeId?: string,
priority?: 'critical' | 'normal' | 'low'
): void
forceSync(): void
detectChangesInRAF(): void
// Performance
performanceMetrics: PerformanceMetrics
}
export const useGraphNodeManager = (graph: LGraph): GraphNodeManager => {
console.log('[useGraphNodeManager] Initializing with graph:', graph)
// Safe reactive data extracted from LiteGraph nodes
const vueNodeData = reactive(new Map<string, VueNodeData>())
const nodeState = reactive(new Map<string, NodeState>())
const nodePositions = reactive(new Map<string, { x: number; y: number }>())
const nodeSizes = reactive(
new Map<string, { width: number; height: number }>()
)
// Non-reactive storage for original LiteGraph nodes
const nodeRefs = new Map<string, LGraphNode>()
// WeakMap for heavy data that auto-GCs when nodes are removed
const nodeMetadata = new WeakMap<LGraphNode, NodeMetadata>()
// Performance tracking
const performanceMetrics = reactive<PerformanceMetrics>({
frameTime: 0,
updateTime: 0,
nodeCount: 0,
culledCount: 0,
adaptiveQuality: false
})
// Update batching
const pendingUpdates = new Set<string>()
const criticalUpdates = new Set<string>()
const lowPriorityUpdates = new Set<string>()
let updateScheduled = false
let batchTimeoutId: number | null = null
// Change detection state
const lastNodesSnapshot = new Map<
string,
{ pos: [number, number]; size: [number, number] }
>()
const attachMetadata = (node: LGraphNode) => {
nodeMetadata.set(node, {
lastRenderTime: performance.now(),
cachedBounds: null,
lodLevel: 'high',
spatialIndex: undefined
})
}
// Extract safe data from LiteGraph node for Vue consumption
const extractVueNodeData = (node: LGraphNode): VueNodeData => {
// Extract safe widget data
const safeWidgets = node.widgets?.map((widget) => {
try {
let value = widget.value
// For combo widgets, if value is undefined, use the first option as default
if (
value === undefined &&
widget.type === 'combo' &&
widget.options?.values &&
Array.isArray(widget.options.values) &&
widget.options.values.length > 0
) {
value = widget.options.values[0]
}
return {
name: widget.name,
type: widget.type,
value: value,
options: widget.options ? { ...widget.options } : undefined,
callback: widget.callback
}
} catch (error) {
console.warn(
'[useGraphNodeManager] Error extracting widget data for',
widget.name,
':',
error
)
return {
name: widget.name || 'unknown',
type: widget.type || 'text',
value: undefined,
options: undefined,
callback: undefined
}
}
})
return {
id: String(node.id),
title: node.title || 'Untitled',
type: node.type || 'Unknown',
mode: node.mode || 0,
selected: node.selected || false,
executing: false, // Will be updated separately based on execution state
widgets: safeWidgets,
inputs: node.inputs ? [...node.inputs] : undefined,
outputs: node.outputs ? [...node.outputs] : undefined
}
}
// Get access to original LiteGraph node (non-reactive)
const getNode = (id: string): LGraphNode | undefined => {
return nodeRefs.get(id)
}
// Uncomment when needed for future features
// const getNodeMetadata = (node: LGraphNode): NodeMetadata => {
// let metadata = nodeMetadata.get(node)
// if (!metadata) {
// attachMetadata(node)
// metadata = nodeMetadata.get(node)!
// }
// return metadata
// }
const scheduleUpdate = (
nodeId?: string,
priority: 'critical' | 'normal' | 'low' = 'normal'
) => {
if (nodeId) {
const state = nodeState.get(nodeId)
if (state) state.dirty = true
// Priority queuing
if (priority === 'critical') {
criticalUpdates.add(nodeId)
flush() // Immediate flush for critical updates
return
} else if (priority === 'low') {
lowPriorityUpdates.add(nodeId)
} else {
pendingUpdates.add(nodeId)
}
}
if (!updateScheduled) {
updateScheduled = true
// Adaptive batching strategy
if (pendingUpdates.size > 10) {
// Many updates - batch in nextTick
void nextTick(() => flush())
} else {
// Few updates - small delay for more batching
batchTimeoutId = window.setTimeout(() => flush(), 4)
}
}
}
const flush = () => {
const startTime = performance.now()
if (batchTimeoutId !== null) {
clearTimeout(batchTimeoutId)
batchTimeoutId = null
}
// Clear all pending updates
criticalUpdates.clear()
pendingUpdates.clear()
lowPriorityUpdates.clear()
updateScheduled = false
// Sync with graph state
syncWithGraph()
const endTime = performance.now()
performanceMetrics.updateTime = endTime - startTime
}
const syncWithGraph = () => {
if (!graph?._nodes) return
const currentNodes = new Set(graph._nodes.map((n) => String(n.id)))
// Remove deleted nodes
for (const [id] of vueNodeData) {
if (!currentNodes.has(id)) {
nodeRefs.delete(id)
vueNodeData.delete(id)
nodeState.delete(id)
nodePositions.delete(id)
nodeSizes.delete(id)
lastNodesSnapshot.delete(id)
}
}
// Add/update existing nodes
graph._nodes.forEach((node) => {
const id = String(node.id)
// Store non-reactive reference
nodeRefs.set(id, node)
// Extract and store safe data for Vue
vueNodeData.set(id, extractVueNodeData(node))
if (!nodeState.has(id)) {
nodeState.set(id, {
visible: true,
dirty: false,
lastUpdate: performance.now(),
culled: false
})
nodePositions.set(id, { x: node.pos[0], y: node.pos[1] })
nodeSizes.set(id, { width: node.size[0], height: node.size[1] })
attachMetadata(node)
}
})
// Update performance metrics
performanceMetrics.nodeCount = vueNodeData.size
performanceMetrics.culledCount = Array.from(nodeState.values()).filter(
(s) => s.culled
).length
}
// Most performant: Direct position sync without re-setting entire node
const detectChangesInRAF = () => {
if (!graph?._nodes) return
// Update reactive positions and sizes
for (const node of graph._nodes) {
const id = String(node.id)
const currentPos = nodePositions.get(id)
const currentSize = nodeSizes.get(id)
if (
!currentPos ||
currentPos.x !== node.pos[0] ||
currentPos.y !== node.pos[1]
) {
nodePositions.set(id, { x: node.pos[0], y: node.pos[1] })
}
if (
!currentSize ||
currentSize.width !== node.size[0] ||
currentSize.height !== node.size[1]
) {
nodeSizes.set(id, { width: node.size[0], height: node.size[1] })
}
}
// Update performance metrics
performanceMetrics.frameTime = performance.now()
performanceMetrics.updateTime++
}
const setupEventListeners = (): (() => void) => {
// Store original callbacks
const originalOnNodeAdded = graph.onNodeAdded
const originalOnNodeRemoved = graph.onNodeRemoved
// Override callbacks
graph.onNodeAdded = (node: LGraphNode) => {
console.log('[useGraphNodeManager] onNodeAdded:', node.id)
const id = String(node.id)
// Store non-reactive reference to original node
nodeRefs.set(id, node)
// Extract safe data for Vue
vueNodeData.set(id, extractVueNodeData(node))
// Set up reactive tracking
nodeState.set(id, {
visible: true,
dirty: false,
lastUpdate: performance.now(),
culled: false
})
nodePositions.set(id, { x: node.pos[0], y: node.pos[1] })
nodeSizes.set(id, { width: node.size[0], height: node.size[1] })
attachMetadata(node)
if (originalOnNodeAdded) {
void originalOnNodeAdded(node)
}
}
graph.onNodeRemoved = (node: LGraphNode) => {
const id = String(node.id)
nodeRefs.delete(id)
vueNodeData.delete(id)
nodeState.delete(id)
nodePositions.delete(id)
nodeSizes.delete(id)
lastNodesSnapshot.delete(id)
originalOnNodeRemoved?.(node)
}
// Initial sync
syncWithGraph()
// Return cleanup function
return () => {
// Restore original callbacks
graph.onNodeAdded = originalOnNodeAdded
graph.onNodeRemoved = originalOnNodeRemoved
// Clear pending updates
if (batchTimeoutId !== null) {
clearTimeout(batchTimeoutId)
batchTimeoutId = null
}
// Clear state
nodeRefs.clear()
vueNodeData.clear()
nodeState.clear()
nodePositions.clear()
nodeSizes.clear()
lastNodesSnapshot.clear()
pendingUpdates.clear()
criticalUpdates.clear()
lowPriorityUpdates.clear()
}
}
// Set up event listeners immediately
const cleanup = setupEventListeners()
return {
vueNodeData: readonly(vueNodeData) as ReadonlyMap<string, VueNodeData>,
nodeState: readonly(nodeState) as ReadonlyMap<string, NodeState>,
nodePositions: readonly(nodePositions) as ReadonlyMap<
string,
{ x: number; y: number }
>,
nodeSizes: readonly(nodeSizes) as ReadonlyMap<
string,
{ width: number; height: number }
>,
getNode,
setupEventListeners,
cleanup,
scheduleUpdate,
forceSync: syncWithGraph,
detectChangesInRAF,
performanceMetrics
}
}