Add Vue Image Preview widget (#4116)

src/components/graph/widgets/ImagePreviewWidget.vue

@@ -0,0 +1,210 @@
+<template>
+  <div class="image-preview-widget relative w-full">
+    <!-- Single image or grid view -->
+    <div
+      v-if="images.length > 0"
+      class="relative rounded-lg overflow-hidden bg-gray-100 dark-theme:bg-gray-800"
+      :style="{ minHeight: `${minHeight}px` }"
+    >
+      <!-- Single image view -->
+      <div
+        v-if="selectedImageIndex !== null && images[selectedImageIndex]"
+        class="relative flex items-center justify-center w-full h-full"
+      >
+        <img
+          :src="images[selectedImageIndex].src"
+          :alt="`Preview ${selectedImageIndex + 1}`"
+          class="max-w-full max-h-full object-contain"
+          @error="handleImageError"
+        />
+
+        <!-- Action buttons overlay -->
+        <div class="absolute top-2 right-2 flex gap-1">
+          <Button
+            v-if="images.length > 1"
+            icon="pi pi-times"
+            size="small"
+            severity="secondary"
+            class="w-8 h-8 rounded-lg bg-black/60 text-white border-none hover:bg-black/80"
+            @click="showGrid"
+          />
+          <Button
+            icon="pi pi-pencil"
+            size="small"
+            severity="secondary"
+            class="w-8 h-8 rounded-lg bg-black/60 text-white border-none hover:bg-black/80"
+            @click="handleEdit"
+          />
+          <Button
+            icon="pi pi-sun"
+            size="small"
+            severity="secondary"
+            class="w-8 h-8 rounded-lg bg-black/60 text-white border-none hover:bg-black/80"
+            @click="handleBrightness"
+          />
+          <Button
+            icon="pi pi-download"
+            size="small"
+            severity="secondary"
+            class="w-8 h-8 rounded-lg bg-black/60 text-white border-none hover:bg-black/80"
+            @click="handleSave"
+          />
+        </div>
+
+        <!-- Navigation for multiple images -->
+        <div
+          v-if="images.length > 1"
+          class="absolute bottom-2 right-2 bg-black/60 text-white px-2 py-1 rounded text-sm cursor-pointer hover:bg-black/80"
+          @click="nextImage"
+        >
+          {{ selectedImageIndex + 1 }}/{{ images.length }}
+        </div>
+      </div>
+
+      <!-- Grid view for multiple images -->
+      <div
+        v-else-if="allowBatch && images.length > 1"
+        class="grid gap-1 p-2"
+        :style="gridStyle"
+      >
+        <div
+          v-for="(image, index) in images"
+          :key="index"
+          class="relative aspect-square bg-gray-200 dark-theme:bg-gray-700 rounded cursor-pointer overflow-hidden hover:ring-2 hover:ring-blue-500"
+          @click="selectImage(index)"
+        >
+          <img
+            :src="image.src"
+            :alt="`Thumbnail ${index + 1}`"
+            class="w-full h-full object-cover"
+            @error="handleImageError"
+          />
+        </div>
+      </div>
+
+      <!-- Single image in grid mode -->
+      <div v-else-if="images.length === 1" class="p-2">
+        <div
+          class="relative bg-gray-200 dark-theme:bg-gray-700 rounded cursor-pointer overflow-hidden"
+          @click="selectImage(0)"
+        >
+          <img
+            :src="images[0].src"
+            :alt="'Preview'"
+            class="w-full h-auto object-contain"
+            @error="handleImageError"
+          />
+        </div>
+      </div>
+    </div>
+
+    <!-- Empty state -->
+    <div
+      v-else
+      class="flex items-center justify-center w-full bg-gray-100 dark-theme:bg-gray-800 rounded-lg"
+      :style="{ minHeight: `${minHeight}px` }"
+    >
+      <div class="text-gray-500 text-sm">No images to preview</div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import Button from 'primevue/button'
+import { computed, ref } from 'vue'
+
+import type { ComponentWidget } from '@/scripts/domWidget'
+
+interface ImageData {
+  src: string
+  width?: number
+  height?: number
+}
+
+const modelValue = defineModel<string | string[]>({ required: true })
+const { widget } = defineProps<{
+  widget: ComponentWidget<string | string[]>
+}>()
+
+// Widget configuration
+const inputSpec = widget.inputSpec
+const allowBatch = computed(() => Boolean(inputSpec.allow_batch))
+const imageFolder = computed(() => inputSpec.image_folder || 'input')
+
+// State
+const selectedImageIndex = ref<number | null>(null)
+const minHeight = 320
+
+// Convert model value to image data
+const images = computed<ImageData[]>(() => {
+  const value = modelValue.value
+  if (!value) return []
+
+  const paths = Array.isArray(value) ? value : [value]
+  return paths.map((path) => ({
+    src: path.startsWith('http')
+      ? path
+      : `api/view?filename=${encodeURIComponent(path)}&type=${imageFolder.value}`, // TODO: add subfolder
+    width: undefined,
+    height: undefined
+  }))
+})
+
+// Grid layout for batch images
+const gridStyle = computed(() => {
+  const count = images.value.length
+  if (count <= 1) return {}
+
+  const cols = Math.ceil(Math.sqrt(count))
+  return {
+    gridTemplateColumns: `repeat(${cols}, 1fr)`
+  }
+})
+
+// Methods
+const selectImage = (index: number) => {
+  selectedImageIndex.value = index
+}
+
+const showGrid = () => {
+  selectedImageIndex.value = null
+}
+
+const nextImage = () => {
+  if (images.value.length === 0) return
+
+  const current = selectedImageIndex.value ?? -1
+  const next = (current + 1) % images.value.length
+  selectedImageIndex.value = next
+}
+
+const handleImageError = (event: Event) => {
+  const img = event.target as HTMLImageElement
+  img.style.display = 'none'
+  console.warn('Failed to load image:', img.src)
+}
+
+// Stub button handlers for now
+const handleEdit = () => {
+  console.log('Edit button clicked - functionality to be implemented')
+}
+
+const handleBrightness = () => {
+  console.log('Brightness button clicked - functionality to be implemented')
+}
+
+const handleSave = () => {
+  console.log('Save button clicked - functionality to be implemented')
+}
+
+// Initialize to show first image if available
+if (images.value.length === 1) {
+  selectedImageIndex.value = 0
+}
+</script>
+
+<style scoped>
+.image-preview-widget {
+  /* Ensure proper dark theme styling */
+}
+</style>

src/components/graph/widgets/MediaLoaderWidget.vue

@@ -1,5 +1,5 @@
 <template>
-  <div class="media-loader-widget w-full px-2">
+  <div class="media-loader-widget w-full px-2 max-h-44">
     <div
       class="upload-area border-2 border-dashed border-surface-300 dark-theme:border-surface-600 rounded-lg p-6 text-center bg-surface-50 dark-theme:bg-surface-800 hover:bg-surface-100 dark-theme:hover:bg-surface-700 transition-colors cursor-pointer"
       :class="{

src/composables/node/useNodeImagePreview.ts

@@ -0,0 +1,77 @@
+import type { LGraphNode } from '@comfyorg/litegraph'
+
+import { useImagePreviewWidget } from '@/composables/widgets/useImagePreviewWidget'
+import type { InputSpec } from '@/schemas/nodeDef/nodeDefSchemaV2'
+
+const IMAGE_PREVIEW_WIDGET_NAME = '$$node-image-preview'
+
+/**
+ * Composable for handling node-level operations for ImagePreview widget
+ */
+export function useNodeImagePreview() {
+  const imagePreviewWidget = useImagePreviewWidget()
+
+  const findImagePreviewWidget = (node: LGraphNode) =>
+    node.widgets?.find((w) => w.name === IMAGE_PREVIEW_WIDGET_NAME)
+
+  const addImagePreviewWidget = (
+    node: LGraphNode,
+    inputSpec?: Partial<InputSpec>
+  ) =>
+    imagePreviewWidget(node, {
+      name: IMAGE_PREVIEW_WIDGET_NAME,
+      type: 'IMAGEPREVIEW',
+      allow_batch: true,
+      image_folder: 'input',
+      ...inputSpec
+    } as InputSpec)
+
+  /**
+   * Shows image preview widget for a node
+   * @param node The graph node to show the widget for
+   * @param images The images to display (can be single image or array)
+   * @param options Configuration options
+   */
+  function showImagePreview(
+    node: LGraphNode,
+    images: string | string[],
+    options: {
+      allow_batch?: boolean
+      image_folder?: string
+      imageInputName?: string
+    } = {}
+  ) {
+    const widget =
+      findImagePreviewWidget(node) ??
+      addImagePreviewWidget(node, {
+        allow_batch: options.allow_batch,
+        image_folder: options.image_folder || 'input'
+      })
+
+    // Set the widget value
+    widget.value = images
+    node.setDirtyCanvas?.(true)
+  }
+
+  /**
+   * Removes image preview widget from a node
+   * @param node The graph node to remove the widget from
+   */
+  function removeImagePreview(node: LGraphNode) {
+    if (!node.widgets) return
+
+    const widgetIdx = node.widgets.findIndex(
+      (w) => w.name === IMAGE_PREVIEW_WIDGET_NAME
+    )
+
+    if (widgetIdx > -1) {
+      node.widgets[widgetIdx].onRemove?.()
+      node.widgets.splice(widgetIdx, 1)
+    }
+  }
+
+  return {
+    showImagePreview,
+    removeImagePreview
+  }
+}

src/composables/node/useNodeImageUpload.ts

@@ -2,7 +2,6 @@ import type { LGraphNode } from '@comfyorg/litegraph'
 
 import { useNodeDragAndDrop } from '@/composables/node/useNodeDragAndDrop'
 import { useNodeFileInput } from '@/composables/node/useNodeFileInput'
-import { useNodeMediaUpload } from '@/composables/node/useNodeMediaUpload'
 import { useNodePaste } from '@/composables/node/useNodePaste'
 import { api } from '@/scripts/api'
 import { useToastStore } from '@/stores/toastStore'
@@ -37,28 +36,16 @@ interface ImageUploadOptions {
    * @example 'image/png,image/jpeg,image/webp,video/webm,video/mp4'
    */
   accept?: string
-  /**
-   * Whether to use the new Vue MediaLoader widget instead of traditional drag/drop/paste
-   * @default true
-   */
-  useMediaLoaderWidget?: boolean
 }
 
 /**
  * Adds image upload to a node via drag & drop, paste, and file input.
- * Optionally can use the new Vue MediaLoader widget.
  */
 export const useNodeImageUpload = (
   node: LGraphNode,
   options: ImageUploadOptions
 ) => {
-  const {
+  const { fileFilter, onUploadComplete, allow_batch, accept } = options
-    fileFilter,
-    onUploadComplete,
-    allow_batch,
-    accept,
-    useMediaLoaderWidget = true
-  } = options
 
   const isPastedFile = (file: File): boolean =>
     file.name === 'image.png' &&
@@ -81,21 +68,8 @@ export const useNodeImageUpload = (
     return validPaths
   }
 
-  // If using the new MediaLoader widget, set it up and return early
+  // Note: MediaLoader widget functionality is handled directly by
-  if (useMediaLoaderWidget) {
+  // useImageUploadMediaWidget.ts to avoid circular dependencies
-    const { showMediaLoader } = useNodeMediaUpload()
-    const widget = showMediaLoader(node, {
-      fileFilter,
-      onUploadComplete,
-      allow_batch,
-      accept
-    })
-    return {
-      openFileSelection: () => {},
-      handleUpload,
-      mediaLoaderWidget: widget
-    }
-  }
 
   // Traditional approach: Handle drag & drop
   useNodeDragAndDrop(node, {

src/composables/node/useNodeMediaUpload.ts

@@ -1,10 +1,31 @@
 import type { LGraphNode } from '@comfyorg/litegraph'
 
-import { useNodeImageUpload } from '@/composables/node/useNodeImageUpload'
 import { useMediaLoaderWidget } from '@/composables/widgets/useMediaLoaderWidget'
 import type { InputSpec } from '@/schemas/nodeDef/nodeDefSchemaV2'
+import { api } from '@/scripts/api'
+import { useToastStore } from '@/stores/toastStore'
 
 const MEDIA_LOADER_WIDGET_NAME = '$$node-media-loader'
+const PASTED_IMAGE_EXPIRY_MS = 2000
+
+const uploadFile = async (file: File, isPasted: boolean) => {
+  const body = new FormData()
+  body.append('image', file)
+  if (isPasted) body.append('subfolder', 'pasted')
+
+  const resp = await api.fetchApi('/upload/image', {
+    method: 'POST',
+    body
+  })
+
+  if (resp.status !== 200) {
+    useToastStore().addAlert(resp.status + ' - ' + resp.statusText)
+    return
+  }
+
+  const data = await resp.json()
+  return data.subfolder ? `${data.subfolder}/${data.name}` : data.name
+}
 
 interface MediaUploadOptions {
   fileFilter?: (file: File) => boolean
@@ -26,8 +47,19 @@ export function useNodeMediaUpload() {
     node: LGraphNode,
     options: MediaUploadOptions
   ) => {
-    // Set up the file upload handling using existing logic
+    const isPastedFile = (file: File): boolean =>
-    const { handleUpload } = useNodeImageUpload(node, options)
+      file.name === 'image.png' &&
+      file.lastModified - Date.now() < PASTED_IMAGE_EXPIRY_MS
+
+    const handleUpload = async (file: File) => {
+      try {
+        const path = await uploadFile(file, isPastedFile(file))
+        if (!path) return
+        return path
+      } catch (error) {
+        useToastStore().addAlert(String(error))
+      }
+    }
 
     // Create the MediaLoader widget
     const widget = mediaLoaderWidget(node, {
@@ -38,7 +70,11 @@ export function useNodeMediaUpload() {
     // Connect the widget to the upload handler
     if (widget.options) {
       ;(widget.options as any).onFilesSelected = async (files: File[]) => {
-        const paths = await Promise.all(files.map(handleUpload))
+        const filteredFiles = options.fileFilter
+          ? files.filter(options.fileFilter)
+          : files
+
+        const paths = await Promise.all(filteredFiles.map(handleUpload))
         const validPaths = paths.filter((p): p is string => !!p)
         if (validPaths.length) {
           options.onUploadComplete(validPaths)

src/composables/widgets/useBadgedNumberInput.ts

@@ -43,7 +43,7 @@ export const useBadgedNumberInput = (
   const {
     defaultValue = 0,
     disabled = false,
-    minHeight = 40,
+    minHeight = 32,
     serialize = true,
     mode = 'int'
   } = options
@@ -117,6 +117,8 @@ export const useBadgedNumberInput = (
 
         // Optional: minimum height for the widget
         getMinHeight: () => minHeight + PADDING,
+        // Lock maximum height to prevent oversizing
+        getMaxHeight: () => 45,
 
         // Optional: whether to serialize this widget's value
         serialize

src/composables/widgets/useComboWidget.ts

@@ -29,7 +29,13 @@ const addMultiSelectWidget = (node: LGraphNode, inputSpec: ComboInputSpec) => {
       getValue: () => widgetValue.value,
       setValue: (value: string[]) => {
         widgetValue.value = value
-      }
+      },
+      // Optional: minimum height for the widget (multiselect needs minimal height)
+      getMinHeight: () => 32,
+      // Lock maximum height to prevent oversizing
+      getMaxHeight: () => 45,
+      // Optional: whether to serialize this widget's value
+      serialize: true
     }
   })
   addWidget(node, widget as BaseDOMWidget<object | string>)

src/composables/widgets/useDropdownComboWidget.ts

@@ -13,8 +13,6 @@ import { addValueControlWidgets } from '@/scripts/widgets'
 
 import { useRemoteWidget } from './useRemoteWidget'
 
-const PADDING = 8
-
 const getDefaultValue = (inputSpec: ComboInputSpec) => {
   if (inputSpec.default) return inputSpec.default
   if (inputSpec.options?.length) return inputSpec.options[0]
@@ -51,8 +49,10 @@ export const useDropdownComboWidget = (
           widgetValue.value = value
         },
 
-        // Optional: minimum height for the widget (dropdown needs some height)
+        // Optional: minimum height for the widget (dropdown needs minimal height)
-        getMinHeight: () => 48 + PADDING,
+        getMinHeight: () => 48,
+        // Lock maximum height to prevent oversizing
+        getMaxHeight: () => 64,
 
         // Optional: whether to serialize this widget's value
         serialize: true

src/composables/widgets/useImagePreviewWidget.ts

@@ -1,317 +1,53 @@
-import {
+import type { LGraphNode } from '@comfyorg/litegraph'
-  BaseWidget,
+import { ref } from 'vue'
-  type CanvasPointer,
-  type LGraphNode,
-  LiteGraph
-} from '@comfyorg/litegraph'
-import type {
-  IBaseWidget,
-  IWidgetOptions
-} from '@comfyorg/litegraph/dist/types/widgets'
 
+import ImagePreviewWidget from '@/components/graph/widgets/ImagePreviewWidget.vue'
 import type { InputSpec } from '@/schemas/nodeDef/nodeDefSchemaV2'
-import { app } from '@/scripts/app'
+import { ComponentWidgetImpl, addWidget } from '@/scripts/domWidget'
-import { calculateImageGrid } from '@/scripts/ui/imagePreview'
+import { type ComfyWidgetConstructorV2 } from '@/scripts/widgetTypes'
-import { ComfyWidgetConstructorV2 } from '@/scripts/widgetTypes'
-import { useCanvasStore } from '@/stores/graphStore'
-import { useSettingStore } from '@/stores/settingStore'
-import { is_all_same_aspect_ratio } from '@/utils/imageUtil'
 
-const renderPreview = (
+const PADDING = 8
-  ctx: CanvasRenderingContext2D,
+
-  node: LGraphNode,
+export const useImagePreviewWidget = (
-  shiftY: number
+  options: { defaultValue?: string | string[] } = {}
 ) => {
-  const canvas = useCanvasStore().getCanvas()
-  const mouse = canvas.graph_mouse
-
-  if (!canvas.pointer_is_down && node.pointerDown) {
-    if (
-      mouse[0] === node.pointerDown.pos[0] &&
-      mouse[1] === node.pointerDown.pos[1]
-    ) {
-      node.imageIndex = node.pointerDown.index
-    }
-    node.pointerDown = null
-  }
-
-  const imgs = node.imgs ?? []
-  let { imageIndex } = node
-  const numImages = imgs.length
-  if (numImages === 1 && !imageIndex) {
-    // This skips the thumbnail render section below
-    node.imageIndex = imageIndex = 0
-  }
-
-  const settingStore = useSettingStore()
-  const allowImageSizeDraw = settingStore.get('Comfy.Node.AllowImageSizeDraw')
-  const IMAGE_TEXT_SIZE_TEXT_HEIGHT = allowImageSizeDraw ? 15 : 0
-  const dw = node.size[0]
-  const dh = node.size[1] - shiftY - IMAGE_TEXT_SIZE_TEXT_HEIGHT
-
-  if (imageIndex == null) {
-    // No image selected; draw thumbnails of all
-    let cellWidth: number
-    let cellHeight: number
-    let shiftX: number
-    let cell_padding: number
-    let cols: number
-
-    const compact_mode = is_all_same_aspect_ratio(imgs)
-    if (!compact_mode) {
-      // use rectangle cell style and border line
-      cell_padding = 2
-      // Prevent infinite canvas2d scale-up
-      const largestDimension = imgs.reduce(
-        (acc, current) =>
-          Math.max(acc, current.naturalWidth, current.naturalHeight),
-        0
-      )
-      const fakeImgs = []
-      fakeImgs.length = imgs.length
-      fakeImgs[0] = {
-        naturalWidth: largestDimension,
-        naturalHeight: largestDimension
-      }
-      ;({ cellWidth, cellHeight, cols, shiftX } = calculateImageGrid(
-        fakeImgs,
-        dw,
-        dh
-      ))
-    } else {
-      cell_padding = 0
-      ;({ cellWidth, cellHeight, cols, shiftX } = calculateImageGrid(
-        imgs,
-        dw,
-        dh
-      ))
-    }
-
-    let anyHovered = false
-    node.imageRects = []
-    for (let i = 0; i < numImages; i++) {
-      const img = imgs[i]
-      const row = Math.floor(i / cols)
-      const col = i % cols
-      const x = col * cellWidth + shiftX
-      const y = row * cellHeight + shiftY
-      if (!anyHovered) {
-        anyHovered = LiteGraph.isInsideRectangle(
-          mouse[0],
-          mouse[1],
-          x + node.pos[0],
-          y + node.pos[1],
-          cellWidth,
-          cellHeight
-        )
-        if (anyHovered) {
-          node.overIndex = i
-          let value = 110
-          if (canvas.pointer_is_down) {
-            if (!node.pointerDown || node.pointerDown.index !== i) {
-              node.pointerDown = { index: i, pos: [...mouse] }
-            }
-            value = 125
-          }
-          ctx.filter = `contrast(${value}%) brightness(${value}%)`
-          canvas.canvas.style.cursor = 'pointer'
-        }
-      }
-      node.imageRects.push([x, y, cellWidth, cellHeight])
-
-      const wratio = cellWidth / img.width
-      const hratio = cellHeight / img.height
-      const ratio = Math.min(wratio, hratio)
-
-      const imgHeight = ratio * img.height
-      const imgY = row * cellHeight + shiftY + (cellHeight - imgHeight) / 2
-      const imgWidth = ratio * img.width
-      const imgX = col * cellWidth + shiftX + (cellWidth - imgWidth) / 2
-
-      ctx.drawImage(
-        img,
-        imgX + cell_padding,
-        imgY + cell_padding,
-        imgWidth - cell_padding * 2,
-        imgHeight - cell_padding * 2
-      )
-      if (!compact_mode) {
-        // rectangle cell and border line style
-        ctx.strokeStyle = '#8F8F8F'
-        ctx.lineWidth = 1
-        ctx.strokeRect(
-          x + cell_padding,
-          y + cell_padding,
-          cellWidth - cell_padding * 2,
-          cellHeight - cell_padding * 2
-        )
-      }
-
-      ctx.filter = 'none'
-    }
-
-    if (!anyHovered) {
-      node.pointerDown = null
-      node.overIndex = null
-    }
-
-    return
-  }
-  // Draw individual
-  const img = imgs[imageIndex]
-  let w = img.naturalWidth
-  let h = img.naturalHeight
-
-  const scaleX = dw / w
-  const scaleY = dh / h
-  const scale = Math.min(scaleX, scaleY, 1)
-
-  w *= scale
-  h *= scale
-
-  const x = (dw - w) / 2
-  const y = (dh - h) / 2 + shiftY
-  ctx.drawImage(img, x, y, w, h)
-
-  // Draw image size text below the image
-  if (allowImageSizeDraw) {
-    ctx.fillStyle = LiteGraph.NODE_TEXT_COLOR
-    ctx.textAlign = 'center'
-    ctx.font = '10px sans-serif'
-    const sizeText = `${Math.round(img.naturalWidth)} × ${Math.round(img.naturalHeight)}`
-    const textY = y + h + 10
-    ctx.fillText(sizeText, x + w / 2, textY)
-  }
-
-  const drawButton = (
-    x: number,
-    y: number,
-    sz: number,
-    text: string
-  ): boolean => {
-    const hovered = LiteGraph.isInsideRectangle(
-      mouse[0],
-      mouse[1],
-      x + node.pos[0],
-      y + node.pos[1],
-      sz,
-      sz
-    )
-    let fill = '#333'
-    let textFill = '#fff'
-    let isClicking = false
-    if (hovered) {
-      canvas.canvas.style.cursor = 'pointer'
-      if (canvas.pointer_is_down) {
-        fill = '#1e90ff'
-        isClicking = true
-      } else {
-        fill = '#eee'
-        textFill = '#000'
-      }
-    }
-
-    ctx.fillStyle = fill
-    ctx.beginPath()
-    ctx.roundRect(x, y, sz, sz, [4])
-    ctx.fill()
-    ctx.fillStyle = textFill
-    ctx.font = '12px Arial'
-    ctx.textAlign = 'center'
-    ctx.fillText(text, x + 15, y + 20)
-
-    return isClicking
-  }
-
-  if (!(numImages > 1)) return
-
-  const imageNum = (node.imageIndex ?? 0) + 1
-  if (drawButton(dw - 40, dh + shiftY - 40, 30, `${imageNum}/${numImages}`)) {
-    const i = imageNum >= numImages ? 0 : imageNum
-    if (!node.pointerDown || node.pointerDown.index !== i) {
-      node.pointerDown = { index: i, pos: [...mouse] }
-    }
-  }
-
-  if (drawButton(dw - 40, shiftY + 10, 30, `x`)) {
-    if (!node.pointerDown || node.pointerDown.index !== null) {
-      node.pointerDown = { index: null, pos: [...mouse] }
-    }
-  }
-}
-
-class ImagePreviewWidget extends BaseWidget {
-  constructor(
-    node: LGraphNode,
-    name: string,
-    options: IWidgetOptions<string | object>
-  ) {
-    const widget: IBaseWidget = {
-      name,
-      options,
-      type: 'custom',
-      /** Dummy value to satisfy type requirements. */
-      value: '',
-      y: 0
-    }
-    super(widget, node)
-
-    // Don't serialize the widget value
-    this.serialize = false
-  }
-
-  override drawWidget(ctx: CanvasRenderingContext2D): void {
-    renderPreview(ctx, this.node, this.y)
-  }
-
-  override onPointerDown(pointer: CanvasPointer, node: LGraphNode): boolean {
-    pointer.onDragStart = () => {
-      const { canvas } = app
-      const { graph } = canvas
-      canvas.emitBeforeChange()
-      graph?.beforeChange()
-      // Ensure that dragging is properly cleaned up, on success or failure.
-      pointer.finally = () => {
-        canvas.isDragging = false
-        graph?.afterChange()
-        canvas.emitAfterChange()
-      }
-
-      canvas.processSelect(node, pointer.eDown)
-      canvas.isDragging = true
-    }
-
-    pointer.onDragEnd = (e) => {
-      const { canvas } = app
-      if (e.shiftKey || LiteGraph.alwaysSnapToGrid)
-        canvas.graph?.snapToGrid(canvas.selectedItems)
-
-      canvas.setDirty(true, true)
-    }
-
-    return true
-  }
-
-  override onClick(): void {}
-
-  override computeLayoutSize() {
-    return {
-      minHeight: 220,
-      minWidth: 1
-    }
-  }
-}
-
-export const useImagePreviewWidget = () => {
   const widgetConstructor: ComfyWidgetConstructorV2 = (
     node: LGraphNode,
     inputSpec: InputSpec
   ) => {
-    return node.addCustomWidget(
+    // Initialize widget value
-      new ImagePreviewWidget(node, inputSpec.name, {
+    const widgetValue = ref<string | string[]>(
-        serialize: false
+      options.defaultValue ?? (inputSpec.allow_batch ? [] : '')
-      })
     )
+
+    // Create the Vue-based widget instance
+    const widget = new ComponentWidgetImpl<string | string[]>({
+      node,
+      name: inputSpec.name,
+      component: ImagePreviewWidget,
+      inputSpec,
+      options: {
+        // Required: getter for widget value
+        getValue: () => widgetValue.value,
+
+        // Required: setter for widget value
+        setValue: (value: string | string[]) => {
+          widgetValue.value = value
+        },
+
+        // Optional: minimum height for the widget
+        getMinHeight: () => 320 + PADDING,
+        getMaxHeight: () => 512 + PADDING,
+
+        // Optional: whether to serialize this widget's value
+        serialize: false
+      }
+    })
+
+    // Register the widget with the node
+    addWidget(node, widget as any)
+
+    return widget
   }
 
   return widgetConstructor

src/composables/widgets/useImageUploadMediaWidget.ts

@@ -1,21 +1,44 @@
 import type { LGraphNode } from '@comfyorg/litegraph'
 import { IComboWidget } from '@comfyorg/litegraph/dist/types/widgets'
+import { ref } from 'vue'
 
 import MediaLoaderWidget from '@/components/graph/widgets/MediaLoaderWidget.vue'
 import { useNodeImage, useNodeVideo } from '@/composables/node/useNodeImage'
-import { useNodeImageUpload } from '@/composables/node/useNodeImageUpload'
+import { useNodeImagePreview } from '@/composables/node/useNodeImagePreview'
 import { useValueTransform } from '@/composables/useValueTransform'
 import type { ResultItem } from '@/schemas/apiSchema'
 import { transformInputSpecV1ToV2 } from '@/schemas/nodeDef/migration'
 import type { InputSpec } from '@/schemas/nodeDefSchema'
+import { api } from '@/scripts/api'
 import { ComponentWidgetImpl, addWidget } from '@/scripts/domWidget'
 import type { ComfyWidgetConstructor } from '@/scripts/widgets'
 import { useNodeOutputStore } from '@/stores/imagePreviewStore'
+import { useToastStore } from '@/stores/toastStore'
 import { createAnnotatedPath } from '@/utils/formatUtil'
 import { addToComboValues } from '@/utils/litegraphUtil'
 
 const ACCEPTED_IMAGE_TYPES = 'image/png,image/jpeg,image/webp'
 const ACCEPTED_VIDEO_TYPES = 'video/webm,video/mp4'
+const PASTED_IMAGE_EXPIRY_MS = 2000
+
+const uploadFile = async (file: File, isPasted: boolean) => {
+  const body = new FormData()
+  body.append('image', file)
+  if (isPasted) body.append('subfolder', 'pasted')
+
+  const resp = await api.fetchApi('/upload/image', {
+    method: 'POST',
+    body
+  })
+
+  if (resp.status !== 200) {
+    useToastStore().addAlert(resp.status + ' - ' + resp.statusText)
+    return
+  }
+
+  const data = await resp.json()
+  return data.subfolder ? `${data.subfolder}/${data.name}` : data.name
+}
 
 type InternalFile = string | ResultItem
 type InternalValue = InternalFile | InternalFile[]
@@ -43,6 +66,7 @@ export const useImageUploadMediaWidget = () => {
     const isVideo = !!inputOptions.video_upload
     const accept = isVideo ? ACCEPTED_VIDEO_TYPES : ACCEPTED_IMAGE_TYPES
     const { showPreview } = isVideo ? useNodeVideo(node) : useNodeImage(node)
+    const { showImagePreview } = useNodeImagePreview()
 
     const fileFilter = isVideo ? isVideoFile : isImageFile
     // @ts-expect-error InputSpec is not typed correctly
@@ -72,7 +96,8 @@ export const useImageUploadMediaWidget = () => {
 
     // Handle widget dimensions based on input options
     const getMinHeight = () => {
-      let baseHeight = 200
+      // Use smaller height for MediaLoader upload widget
+      let baseHeight = 176
 
       // Handle multiline attribute for expanded height
       if (inputOptions.multiline) {
@@ -92,6 +117,19 @@ export const useImageUploadMediaWidget = () => {
       return baseHeight + 8 // Add padding
     }
 
+    const getMaxHeight = () => {
+      // Lock maximum height to prevent oversizing of upload widget
+      if (inputOptions.multiline || inputOptions.min_height) {
+        // Allow more height for special cases
+        return Math.max(200, getMinHeight())
+      }
+      // Lock standard upload widget to ~80px max
+      return 80
+    }
+
+    // State for MediaLoader widget
+    const uploadedFiles = ref<string[]>([])
+
     // Create the MediaLoader widget directly
     const uploadWidget = new ComponentWidgetImpl<string[], { accept?: string }>(
       {
@@ -103,33 +141,48 @@ export const useImageUploadMediaWidget = () => {
           accept
         },
         options: {
-          getValue: () => [],
+          getValue: () => uploadedFiles.value,
-          setValue: () => {},
+          setValue: (value: string[]) => {
+            uploadedFiles.value = value
+          },
           getMinHeight,
+          getMaxHeight, // Lock maximum height to prevent oversizing
           serialize: false,
           onFilesSelected: async (files: File[]) => {
-            // Use the existing upload infrastructure
+            const isPastedFile = (file: File): boolean =>
-            const { handleUpload } = useNodeImageUpload(node, {
+              file.name === 'image.png' &&
-              // @ts-expect-error InputSpec is not typed correctly
+              file.lastModified - Date.now() < PASTED_IMAGE_EXPIRY_MS
-              allow_batch,
-              fileFilter,
-              accept,
-              onUploadComplete: (output) => {
-                output.forEach((path) =>
-                  addToComboValues(fileComboWidget, path)
-                )
-                // @ts-expect-error litegraph combo value type does not support arrays yet
-                fileComboWidget.value = output
-                fileComboWidget.callback?.(output)
-              }
-            })
 
-            // Handle each file
+            const handleUpload = async (file: File) => {
-            for (const file of files) {
+              try {
-              if (fileFilter(file)) {
+                const path = await uploadFile(file, isPastedFile(file))
-                await handleUpload(file)
+                if (!path) return
+                return path
+              } catch (error) {
+                useToastStore().addAlert(String(error))
               }
             }
+
+            // Filter and upload files
+            const filteredFiles = files.filter(fileFilter)
+            const paths = await Promise.all(filteredFiles.map(handleUpload))
+            const validPaths = paths.filter((p): p is string => !!p)
+
+            if (validPaths.length) {
+              validPaths.forEach((path) =>
+                addToComboValues(fileComboWidget, path)
+              )
+
+              const output = allow_batch ? validPaths : validPaths[0]
+              // @ts-expect-error litegraph combo value type does not support arrays yet
+              fileComboWidget.value = output
+
+              // Update widget value to show file names
+              uploadedFiles.value = Array.isArray(output) ? output : [output]
+
+              // Trigger the combo widget callback to update all dependent widgets
+              fileComboWidget.callback?.(output)
+            }
           }
         } as any
       }
@@ -138,11 +191,27 @@ export const useImageUploadMediaWidget = () => {
     // Register the widget with the node
     addWidget(node, uploadWidget as any)
 
+    // Store the original callback if it exists
+    const originalCallback = fileComboWidget.callback
+
     // Add our own callback to the combo widget to render an image when it changes
-    fileComboWidget.callback = function () {
+    fileComboWidget.callback = function (value?: any) {
+      // Call original callback first if it exists
+      originalCallback?.call(this, value)
+
       nodeOutputStore.setNodeOutputs(node, fileComboWidget.value, {
         isAnimated
       })
+
+      // Use Vue widget for image preview, fallback to DOM widget for video
+      if (!isVideo) {
+        showImagePreview(node, fileComboWidget.value, {
+          allow_batch: allow_batch as boolean,
+          image_folder: image_folder as string,
+          imageInputName: imageInputName as string
+        })
+      }
+
       node.graph?.setDirtyCanvas(true)
     }
 
@@ -153,7 +222,17 @@ export const useImageUploadMediaWidget = () => {
       nodeOutputStore.setNodeOutputs(node, fileComboWidget.value, {
         isAnimated
       })
-      showPreview({ block: false })
+
+      // Use appropriate preview method
+      if (isVideo) {
+        showPreview({ block: false })
+      } else {
+        showImagePreview(node, fileComboWidget.value, {
+          allow_batch: allow_batch as boolean,
+          image_folder: image_folder as string,
+          imageInputName: imageInputName as string
+        })
+      }
     })
 
     return { widget: uploadWidget }

src/composables/widgets/useImageUploadWidget.ts

@@ -2,6 +2,7 @@ import type { LGraphNode } from '@comfyorg/litegraph'
 import { IComboWidget } from '@comfyorg/litegraph/dist/types/widgets'
 
 import { useNodeImage, useNodeVideo } from '@/composables/node/useNodeImage'
+import { useNodeImagePreview } from '@/composables/node/useNodeImagePreview'
 import { useNodeImageUpload } from '@/composables/node/useNodeImageUpload'
 import { useValueTransform } from '@/composables/useValueTransform'
 import { t } from '@/i18n'
@@ -41,6 +42,7 @@ export const useImageUploadWidget = () => {
     const isVideo = !!inputOptions.video_upload
     const accept = isVideo ? ACCEPTED_VIDEO_TYPES : ACCEPTED_IMAGE_TYPES
     const { showPreview } = isVideo ? useNodeVideo(node) : useNodeImage(node)
+    const { showImagePreview } = useNodeImagePreview()
 
     const fileFilter = isVideo ? isVideoFile : isImageFile
     // @ts-expect-error InputSpec is not typed correctly
@@ -96,6 +98,16 @@ export const useImageUploadWidget = () => {
       nodeOutputStore.setNodeOutputs(node, fileComboWidget.value, {
         isAnimated
       })
+
+      // Use Vue widget for image preview, fallback to DOM widget for video
+      if (!isVideo) {
+        showImagePreview(node, fileComboWidget.value, {
+          allow_batch: allow_batch as boolean,
+          image_folder: image_folder as string,
+          imageInputName: imageInputName as string
+        })
+      }
+
       node.graph?.setDirtyCanvas(true)
     }
 
@@ -106,7 +118,17 @@ export const useImageUploadWidget = () => {
       nodeOutputStore.setNodeOutputs(node, fileComboWidget.value, {
         isAnimated
       })
-      showPreview({ block: false })
+
+      // Use appropriate preview method
+      if (isVideo) {
+        showPreview({ block: false })
+      } else {
+        showImagePreview(node, fileComboWidget.value, {
+          allow_batch: allow_batch as boolean,
+          image_folder: image_folder as string,
+          imageInputName: imageInputName as string
+        })
+      }
     })
 
     return { widget: uploadWidget }

src/composables/widgets/useMediaLoaderWidget.ts

@@ -50,7 +50,9 @@ export const useMediaLoaderWidget = (options: MediaLoaderOptions = {}) => {
         },
 
         // Optional: minimum height for the widget
-        getMinHeight: () => (options.minHeight ?? 500) + PADDING,
+        // getMinHeight: () => (options.minHeight ?? 64) + PADDING,
+        getMaxHeight: () => 225 + PADDING,
+        getMinHeight: () => 176 + PADDING,
 
         // Optional: whether to serialize this widget's value
         serialize: true,

src/scripts/widgets.ts

@@ -9,6 +9,7 @@ import { useBadgedNumberInput } from '@/composables/widgets/useBadgedNumberInput
 import { useBooleanWidget } from '@/composables/widgets/useBooleanWidget'
 import { useColorPickerWidget } from '@/composables/widgets/useColorPickerWidget'
 import { useComboWidget } from '@/composables/widgets/useComboWidget'
+import { useImagePreviewWidget } from '@/composables/widgets/useImagePreviewWidget'
 import { useImageUploadMediaWidget } from '@/composables/widgets/useImageUploadMediaWidget'
 import { useMarkdownWidget } from '@/composables/widgets/useMarkdownWidget'
 import { useMediaLoaderWidget } from '@/composables/widgets/useMediaLoaderWidget'
@@ -292,5 +293,6 @@ export const ComfyWidgets: Record<string, ComfyWidgetConstructor> = {
   COLOR: transformWidgetConstructorV2ToV1(useColorPickerWidget()),
   IMAGEUPLOAD: useImageUploadMediaWidget(),
   MEDIA_LOADER: transformWidgetConstructorV2ToV1(useMediaLoaderWidget()),
+  IMAGEPREVIEW: transformWidgetConstructorV2ToV1(useImagePreviewWidget()),
   BADGED_NUMBER: transformWidgetConstructorV2ToV1(useBadgedNumberInput())
 }

src/services/litegraphService.ts

@@ -552,7 +552,13 @@ export const useLitegraphService = () => {
         showAnimatedPreview(this)
       } else {
         removeAnimatedPreview(this)
-        showCanvasImagePreview(this)
+        // Only show canvas image preview if we don't already have a Vue image preview widget
+        const hasVueImagePreview = this.widgets?.some(
+          (w) => w.name === '$$node-image-preview' || w.type === 'IMAGEPREVIEW'
+        )
+        if (!hasVueImagePreview) {
+          showCanvasImagePreview(this)
+        }
       }
     }
 

tests-ui/composables/useImagePreviewWidget.test.ts

@@ -0,0 +1,55 @@
+import type { LGraphNode } from '@comfyorg/litegraph'
+import { describe, expect, it, vi } from 'vitest'
+
+import { useImagePreviewWidget } from '@/composables/widgets/useImagePreviewWidget'
+import type { InputSpec } from '@/schemas/nodeDef/nodeDefSchemaV2'
+
+// Mock dependencies
+vi.mock('@/scripts/domWidget', () => ({
+  ComponentWidgetImpl: vi.fn().mockImplementation(() => ({
+    name: 'test-widget',
+    value: ''
+  })),
+  addWidget: vi.fn()
+}))
+
+describe('useImagePreviewWidget', () => {
+  const mockNode = {
+    id: 'test-node',
+    widgets: []
+  } as unknown as LGraphNode
+
+  const mockInputSpec: InputSpec = {
+    name: 'image_preview',
+    type: 'IMAGEPREVIEW',
+    allow_batch: true,
+    image_folder: 'input'
+  }
+
+  it('creates widget constructor with default options', () => {
+    const constructor = useImagePreviewWidget()
+    expect(constructor).toBeDefined()
+    expect(typeof constructor).toBe('function')
+  })
+
+  it('creates widget with custom default value', () => {
+    const constructor = useImagePreviewWidget({
+      defaultValue: 'test-image.png'
+    })
+    expect(constructor).toBeDefined()
+  })
+
+  it('creates widget with array default value for batch mode', () => {
+    const constructor = useImagePreviewWidget({
+      defaultValue: ['image1.png', 'image2.png']
+    })
+    expect(constructor).toBeDefined()
+  })
+
+  it('calls constructor with node and inputSpec', () => {
+    const constructor = useImagePreviewWidget()
+    const widget = constructor(mockNode, mockInputSpec)
+
+    expect(widget).toBeDefined()
+  })
+})

tests-ui/composables/useNodeImagePreview.test.ts

@@ -0,0 +1,69 @@
+import type { LGraphNode } from '@comfyorg/litegraph'
+import { describe, expect, it, vi } from 'vitest'
+
+import { useNodeImagePreview } from '@/composables/node/useNodeImagePreview'
+
+// Mock dependencies
+vi.mock('@/composables/widgets/useImagePreviewWidget', () => ({
+  useImagePreviewWidget: vi.fn(() =>
+    vi.fn(() => ({
+      name: '$$node-image-preview',
+      value: '',
+      onRemove: vi.fn()
+    }))
+  )
+}))
+
+describe('useNodeImagePreview', () => {
+  const mockNode = {
+    id: 'test-node',
+    widgets: [],
+    setDirtyCanvas: vi.fn()
+  } as unknown as LGraphNode
+
+  it('provides showImagePreview and removeImagePreview functions', () => {
+    const { showImagePreview, removeImagePreview } = useNodeImagePreview()
+
+    expect(showImagePreview).toBeDefined()
+    expect(removeImagePreview).toBeDefined()
+    expect(typeof showImagePreview).toBe('function')
+    expect(typeof removeImagePreview).toBe('function')
+  })
+
+  it('shows image preview for single image', () => {
+    const { showImagePreview } = useNodeImagePreview()
+
+    showImagePreview(mockNode, 'test-image.png')
+
+    expect(mockNode.setDirtyCanvas).toHaveBeenCalledWith(true)
+  })
+
+  it('shows image preview for multiple images', () => {
+    const { showImagePreview } = useNodeImagePreview()
+
+    showImagePreview(mockNode, ['image1.png', 'image2.png'], {
+      allow_batch: true
+    })
+
+    expect(mockNode.setDirtyCanvas).toHaveBeenCalledWith(true)
+  })
+
+  it('removes image preview widget', () => {
+    const mockWidget = {
+      name: '$$node-image-preview',
+      onRemove: vi.fn()
+    }
+
+    const nodeWithWidget = {
+      ...mockNode,
+      widgets: [mockWidget]
+    } as unknown as LGraphNode
+
+    const { removeImagePreview } = useNodeImagePreview()
+
+    removeImagePreview(nodeWithWidget)
+
+    expect(mockWidget.onRemove).toHaveBeenCalled()
+    expect(nodeWithWidget.widgets).toHaveLength(0)
+  })
+})