feat(ComboWidget): add ability to have mapped inputs (#6585)

## Summary

1. Add a `getOptionLabel` option to `ComboWidget` so users of it can map
of custom labels to widget values. (e.g., `"My Photo" ->
"my_photo_1235.png"`).
2. Utilize this ability in Cloud environment to map user uploaded
filenames to their corresponding input asset.
3. Copious unit tests to make sure I didn't (AFAIK) break anything
during the refactoring portion of development.
4. Bonus: Scope model browser to only show in cloud distributions until
it's released elsewhere; should prevent some undesired UI behavior if a
user accidentally enables the assetAPI.

## Review Focus

Widget code: please double check the work there.

## Screenshots (if applicable)



https://github.com/user-attachments/assets/a94b3203-c87f-4285-b692-479996859a5a


┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6585-Feat-input-mapping-2a26d73d365081faa667e49892c8d45a)
by [Unito](https://www.unito.io)

Author: arjansingh

src/lib/litegraph/src/types/widgets.ts

@@ -29,6 +29,8 @@ export interface IWidgetOptions<TValues = unknown[]> {
   canvasOnly?: boolean
 
   values?: TValues
+  /** Optional function to format values for display (e.g., hash → human-readable name) */
+  getOptionLabel?: (value?: string | null) => string
   callback?: IWidget['callback']
 }
 

src/lib/litegraph/src/widgets/ComboWidget.ts

@@ -34,6 +34,18 @@ export class ComboWidget
 
   override get _displayValue() {
     if (this.computedDisabled) return ''
+
+    if (this.options.getOptionLabel) {
+      try {
+        return this.options.getOptionLabel(
+          this.value ? String(this.value) : null
+        )
+      } catch (e) {
+        console.error('Failed to map value:', e)
+        return this.value ? String(this.value) : ''
+      }
+    }
+
     const { values: rawValues } = this.options
     if (rawValues) {
       const values = typeof rawValues === 'function' ? rawValues() : rawValues
@@ -131,7 +143,31 @@ export class ComboWidget
     const values = this.getValues(node)
     const values_list = toArray(values)
 
-    // Handle center click - show dropdown menu
+    // Use addItem to solve duplicate filename issues
+    if (this.options.getOptionLabel) {
+      const menuOptions = {
+        scale: Math.max(1, canvas.ds.scale),
+        event: e,
+        className: 'dark',
+        callback: (value: string) => {
+          this.setValue(value, { e, node, canvas })
+        }
+      }
+      const menu = new LiteGraph.ContextMenu([], menuOptions)
+
+      for (const value of values_list) {
+        try {
+          const label = this.options.getOptionLabel(String(value))
+          menu.addItem(label, value, menuOptions)
+        } catch (err) {
+          console.error('Failed to map value:', err)
+          menu.addItem(String(value), value, menuOptions)
+        }
+      }
+      return
+    }
+
+    // Show dropdown menu when user clicks on widget label
     const text_values = values != values_list ? Object.values(values) : values
     new LiteGraph.ContextMenu(text_values, {
       scale: Math.max(1, canvas.ds.scale),

src/platform/assets/services/assetService.ts

@@ -194,20 +194,31 @@ function createAssetService() {
   /**
    * Gets assets filtered by a specific tag
    *
-   * @param tag - The tag to filter by (e.g., 'models')
+   * @param tag - The tag to filter by (e.g., 'models', 'input')
    * @param includePublic - Whether to include public assets (default: true)
+   * @param options - Pagination options
+   * @param options.limit - Maximum number of assets to return (default: 500)
+   * @param options.offset - Number of assets to skip (default: 0)
    * @returns Promise<AssetItem[]> - Full asset objects filtered by tag, excluding missing assets
    */
   async function getAssetsByTag(
     tag: string,
-    includePublic: boolean = true
+    includePublic: boolean = true,
+    {
+      limit = DEFAULT_LIMIT,
+      offset = 0
+    }: { limit?: number; offset?: number } = {}
   ): Promise<AssetItem[]> {
     const queryParams = new URLSearchParams({
       include_tags: tag,
-      limit: DEFAULT_LIMIT.toString(),
+      limit: limit.toString(),
       include_public: includePublic ? 'true' : 'false'
     })
 
+    if (offset > 0) {
+      queryParams.set('offset', offset.toString())
+    }
+
     const data = await handleAssetRequest(
       `${ASSETS_ENDPOINT}?${queryParams.toString()}`,
       `assets for tag ${tag}`

src/renderer/extensions/vueNodes/widgets/composables/useComboWidget.ts

@@ -11,6 +11,7 @@ import {
   assetItemSchema
 } from '@/platform/assets/schemas/assetSchema'
 import { assetService } from '@/platform/assets/services/assetService'
+import { isCloud } from '@/platform/distribution/types'
 import { useSettingStore } from '@/platform/settings/settingStore'
 import { transformInputSpecV2ToV1 } from '@/schemas/nodeDef/migration'
 import { isComboInputSpec } from '@/schemas/nodeDef/nodeDefSchemaV2'
@@ -22,6 +23,8 @@ import { ComponentWidgetImpl, addWidget } from '@/scripts/domWidget'
 import type { BaseDOMWidget } from '@/scripts/domWidget'
 import { addValueControlWidgets } from '@/scripts/widgets'
 import type { ComfyWidgetConstructorV2 } from '@/scripts/widgets'
+import { useAssetsStore } from '@/stores/assetsStore'
+import { getMediaTypeFromFilename } from '@/utils/formatUtil'
 
 import { useRemoteWidget } from './useRemoteWidget'
 
@@ -32,6 +35,20 @@ const getDefaultValue = (inputSpec: ComboInputSpec) => {
   return undefined
 }
 
+// Map node types to expected media types
+const NODE_MEDIA_TYPE_MAP: Record<string, 'image' | 'video' | 'audio'> = {
+  LoadImage: 'image',
+  LoadVideo: 'video',
+  LoadAudio: 'audio'
+}
+
+// Map node types to placeholder i18n keys
+const NODE_PLACEHOLDER_MAP: Record<string, string> = {
+  LoadImage: 'widgets.uploadSelect.placeholderImage',
+  LoadVideo: 'widgets.uploadSelect.placeholderVideo',
+  LoadAudio: 'widgets.uploadSelect.placeholderAudio'
+}
+
 const addMultiSelectWidget = (
   node: LGraphNode,
   inputSpec: ComboInputSpec
@@ -55,94 +72,176 @@ const addMultiSelectWidget = (
   return widget
 }
 
-const addComboWidget = (
+const createAssetBrowserWidget = (
   node: LGraphNode,
-  inputSpec: ComboInputSpec
+  inputSpec: ComboInputSpec,
+  defaultValue: string | undefined
 ): IBaseWidget => {
-  const settingStore = useSettingStore()
-  const isUsingAssetAPI = settingStore.get('Comfy.Assets.UseAssetAPI')
-  const isEligible = assetService.isAssetBrowserEligible(
-    node.comfyClass,
-    inputSpec.name
-  )
+  const currentValue = defaultValue
+  const displayLabel = currentValue ?? t('widgets.selectModel')
+  const assetBrowserDialog = useAssetBrowserDialog()
+
+  const widget = node.addWidget(
+    'asset',
+    inputSpec.name,
+    displayLabel,
+    async function (this: IBaseWidget) {
+      if (!isAssetWidget(widget)) {
+        throw new Error(`Expected asset widget but received ${widget.type}`)
+      }
+      await assetBrowserDialog.show({
+        nodeType: node.comfyClass || '',
+        inputName: inputSpec.name,
+        currentValue: widget.value,
+        onAssetSelected: (asset) => {
+          const validatedAsset = assetItemSchema.safeParse(asset)
 
-  if (isUsingAssetAPI && isEligible) {
-    const currentValue = getDefaultValue(inputSpec)
-    const displayLabel = currentValue ?? t('widgets.selectModel')
+          if (!validatedAsset.success) {
+            console.error(
+              'Invalid asset item:',
+              validatedAsset.error.errors,
+              'Received:',
+              asset
+            )
+            return
+          }
 
-    const assetBrowserDialog = useAssetBrowserDialog()
+          const filename = validatedAsset.data.user_metadata?.filename
+          const validatedFilename = assetFilenameSchema.safeParse(filename)
 
-    const widget = node.addWidget(
-      'asset',
-      inputSpec.name,
-      displayLabel,
-      async function (this: IBaseWidget) {
-        if (!isAssetWidget(widget)) {
-          throw new Error(`Expected asset widget but received ${widget.type}`)
-        }
-        await assetBrowserDialog.show({
-          nodeType: node.comfyClass || '',
-          inputName: inputSpec.name,
-          currentValue: widget.value,
-          onAssetSelected: (asset) => {
-            const validatedAsset = assetItemSchema.safeParse(asset)
-
-            if (!validatedAsset.success) {
-              console.error(
-                'Invalid asset item:',
-                validatedAsset.error.errors,
-                'Received:',
-                asset
-              )
-              return
-            }
-
-            const filename = validatedAsset.data.user_metadata?.filename
-            const validatedFilename = assetFilenameSchema.safeParse(filename)
-
-            if (!validatedFilename.success) {
-              console.error(
-                'Invalid asset filename:',
-                validatedFilename.error.errors,
-                'for asset:',
-                validatedAsset.data.id
-              )
-              return
-            }
-
-            const oldValue = widget.value
-            this.value = validatedFilename.data
-            node.onWidgetChanged?.(
-              widget.name,
-              validatedFilename.data,
-              oldValue,
-              widget
+          if (!validatedFilename.success) {
+            console.error(
+              'Invalid asset filename:',
+              validatedFilename.error.errors,
+              'for asset:',
+              validatedAsset.data.id
             )
+            return
           }
-        })
+
+          const oldValue = widget.value
+          this.value = validatedFilename.data
+          node.onWidgetChanged?.(
+            widget.name,
+            validatedFilename.data,
+            oldValue,
+            widget
+          )
+        }
+      })
+    }
+  )
+
+  return widget
+}
+
+const createInputMappingWidget = (
+  node: LGraphNode,
+  inputSpec: ComboInputSpec,
+  defaultValue: string | undefined
+): IBaseWidget => {
+  const assetsStore = useAssetsStore()
+
+  const widget = node.addWidget(
+    'combo',
+    inputSpec.name,
+    defaultValue ?? '',
+    () => {},
+    {
+      values: [],
+      getOptionLabel: (value?: string | null) => {
+        if (!value) {
+          const placeholderKey =
+            NODE_PLACEHOLDER_MAP[node.comfyClass ?? ''] ??
+            'widgets.uploadSelect.placeholder'
+          return t(placeholderKey)
+        }
+        return assetsStore.getInputName(value)
       }
-    )
+    }
+  )
 
-    return widget
+  if (assetsStore.inputAssets.length === 0 && !assetsStore.inputLoading) {
+    void assetsStore.updateInputs().then(() => {
+      // edge for users using nodes with 0 prior inputs
+      // force canvas refresh the first time they add an asset
+      // so they see filenames instead of hashes.
+      node.setDirtyCanvas(true, false)
+    })
   }
 
-  // Create normal combo widget
+  const origOptions = widget.options
+  widget.options = new Proxy(origOptions, {
+    get(target, prop) {
+      if (prop !== 'values') {
+        return target[prop as keyof typeof target]
+      }
+      return assetsStore.inputAssets
+        .filter(
+          (asset) =>
+            getMediaTypeFromFilename(asset.name) ===
+            NODE_MEDIA_TYPE_MAP[node.comfyClass ?? '']
+        )
+        .map((asset) => asset.asset_hash)
+        .filter((hash): hash is string => !!hash)
+    }
+  })
+
+  if (inputSpec.control_after_generate) {
+    if (!isComboWidget(widget)) {
+      throw new Error(`Expected combo widget but received ${widget.type}`)
+    }
+    widget.linkedWidgets = addValueControlWidgets(
+      node,
+      widget,
+      undefined,
+      undefined,
+      transformInputSpecV2ToV1(inputSpec)
+    )
+  }
+
+  return widget
+}
+
+const addComboWidget = (
+  node: LGraphNode,
+  inputSpec: ComboInputSpec
+): IBaseWidget => {
   const defaultValue = getDefaultValue(inputSpec)
-  const comboOptions = inputSpec.options ?? []
+
+  if (isCloud) {
+    const settingStore = useSettingStore()
+    const isUsingAssetAPI = settingStore.get('Comfy.Assets.UseAssetAPI')
+    const isEligible = assetService.isAssetBrowserEligible(
+      node.comfyClass,
+      inputSpec.name
+    )
+
+    if (isUsingAssetAPI && isEligible) {
+      return createAssetBrowserWidget(node, inputSpec, defaultValue)
+    }
+
+    if (NODE_MEDIA_TYPE_MAP[node.comfyClass ?? '']) {
+      return createInputMappingWidget(node, inputSpec, defaultValue)
+    }
+  }
+
+  // Standard combo widget
   const widget = node.addWidget(
     'combo',
     inputSpec.name,
     defaultValue,
     () => {},
     {
-      values: comboOptions
+      values: inputSpec.options ?? []
     }
   )
 
   if (inputSpec.remote) {
     if (!isComboWidget(widget)) {
       throw new Error(`Expected combo widget but received ${widget.type}`)
     }
+
     const remoteWidget = useRemoteWidget({
       remoteConfig: inputSpec.remote,
       defaultValue,
@@ -166,6 +265,7 @@ const addComboWidget = (
     if (!isComboWidget(widget)) {
       throw new Error(`Expected combo widget but received ${widget.type}`)
     }
+
     widget.linkedWidgets = addValueControlWidgets(
       node,
       widget,