feat: 完成显示docx, pptx, xlsx文件

frontend/package.json

@@ -63,6 +63,7 @@
     "codemirror": "^6.0.2",
     "date-fns": "^4.1.0",
     "docx": "^9.6.1",
+    "docx-preview": "^0.3.7",
     "dotenv": "^17.2.3",
     "embla-carousel-react": "^8.6.0",
     "gsap": "^3.13.0",
@@ -79,6 +80,7 @@
     "nextra-theme-docs": "^4.6.1",
     "nuxt-og-image": "^5.1.13",
     "ogl": "^1.0.11",
+    "pptx-preview": "^1.0.7",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
     "react-resizable-panels": "^4.4.1",
@@ -94,6 +96,7 @@
     "unist-util-visit": "^5.0.0",
     "use-stick-to-bottom": "^1.1.1",
     "uuid": "^13.0.0",
+    "xlsx": "^0.18.5",
     "zod": "^3.24.2"
   },
   "devDependencies": {

frontend/pnpm-lock.yaml

@@ -137,6 +137,9 @@ importers:
       docx:
         specifier: ^9.6.1
         version: 9.6.1
+      docx-preview:
+        specifier: ^0.3.7
+        version: 0.3.7
       dotenv:
         specifier: ^17.2.3
         version: 17.2.4
@@ -185,6 +188,9 @@ importers:
       ogl:
         specifier: ^1.0.11
         version: 1.0.11
+      pptx-preview:
+        specifier: ^1.0.7
+        version: 1.0.7
       react:
         specifier: ^19.0.0
         version: 19.2.4
@@ -230,6 +236,9 @@ importers:
       uuid:
         specifier: ^13.0.0
         version: 13.0.0
+      xlsx:
+        specifier: ^0.18.5
+        version: 0.18.5
       zod:
         specifier: ^3.24.2
         version: 3.25.76
@@ -2548,6 +2557,10 @@ packages:
     engines: {node: '>=0.4.0'}
     hasBin: true
 
+  adler-32@1.3.1:
+    resolution: {integrity: sha512-ynZ4w/nUUv5rrsR8UUGoe1VC9hZj6V5hU9Qw1HlMDJGEJw5S7TfTErWTjMys6M7vr0YWcPqs3qAr4ss0nDfP+A==}
+    engines: {node: '>=0.8'}
+
   ai@6.0.78:
     resolution: {integrity: sha512-eriIX/NLWfWNDeE/OJy8wmIp9fyaH7gnxTOCPT5bp0MNkvORstp1TwRUql9au8XjXzH7o2WApqbwgxJDDV0Rbw==}
     engines: {node: '>=18'}
@@ -2803,6 +2816,10 @@ packages:
   ccount@2.0.1:
     resolution: {integrity: sha512-eyrF0jiFpY+3drT6383f1qhkbGsLSifNAjA61IUjZjmLCWjItY6LB9ft9YhoDgwfmclB2zhu51Lc7+95b8NRAg==}
 
+  cfb@1.2.2:
+    resolution: {integrity: sha512-KfdUZsSOw19/ObEWasvBP/Ac4reZvAGauZhs6S/gqNhXhI7cKwvlH7ulj+dOEYnca4bm4SGo8C1bTAQvnTjgQA==}
+    engines: {node: '>=0.8'}
+
   chalk@4.1.2:
     resolution: {integrity: sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==}
     engines: {node: '>=10'}
@@ -2875,6 +2892,10 @@ packages:
   codemirror@6.0.2:
     resolution: {integrity: sha512-VhydHotNW5w1UGK0Qj96BwSk/Zqbp9WbnyK2W/eVMv4QyF41INRGpjUhFJY7/uDNuudSc33a/PKr4iDqRduvHw==}
 
+  codepage@1.15.0:
+    resolution: {integrity: sha512-3g6NUTPd/YtuuGrhMnOMRjFc+LJw/bnMp3+0r/Wcz3IXUuCosKRJvMphm5+Q+bvTVGcJJuRvVLuYba+WojaFaA==}
+    engines: {node: '>=0.8'}
+
   collapse-white-space@2.1.0:
     resolution: {integrity: sha512-loKTxY1zCOuG4j9f6EPnuyyYkf58RnhhWTvRoZEokgB+WbdXehfjFviyOVYkqzEWz1Q5kRiZdBYS5SwxbQYwzw==}
 
@@ -2934,6 +2955,11 @@ packages:
   cose-base@2.2.0:
     resolution: {integrity: sha512-AzlgcsCbUMymkADOJtQm3wO9S3ltPfYOFD5033keQn9NJzIbtnZj+UdBJe7DYml/8TdbtHJW3j58SOnKhWY/5g==}
 
+  crc-32@1.2.2:
+    resolution: {integrity: sha512-ROmzCKrTnOwybPcJApAA6WBWij23HVfGVNKqqrZpuyZOHqK2CwHSvpGuyt/UNNvaIjEd8X5IFGp4Mh+Ie1IHJQ==}
+    engines: {node: '>=0.8'}
+    hasBin: true
+
   crelt@1.0.6:
     resolution: {integrity: sha512-VQ2MBenTq1fWZUH9DJNGti7kKv6EeAuYr3cLwxUWhIu1baTaXh4Ib5W2CqHVqib4/MqbYGJqiL3Zb8GJZr3l4g==}
 
@@ -3206,6 +3232,9 @@ packages:
     resolution: {integrity: sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==}
     engines: {node: '>=0.10.0'}
 
+  docx-preview@0.3.7:
+    resolution: {integrity: sha512-Lav69CTA/IYZPJTsKH7oYeoZjyg96N0wEJMNslGJnZJ+dMUZK85Lt5ASC79yUlD48ecWjuv+rkcmFt6EVPV0Xg==}
+
   docx@9.6.1:
     resolution: {integrity: sha512-ZJja9/KBUuFC109sCMzovoq2GR2wCG/AuxivjA+OHj/q0TEgJIm3S7yrlUxIy3B+bV8YDj/BiHfWyrRFmyWpDQ==}
     engines: {node: '>=10'}
@@ -3221,6 +3250,9 @@ packages:
     resolution: {integrity: sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==}
     engines: {node: '>= 0.4'}
 
+  echarts@5.6.0:
+    resolution: {integrity: sha512-oTbVTsXfKuEhxftHqL5xprgLoc0k7uScAwtryCgWF6hPYFLRwOUHiFmHGCBKP5NPFNkDVopOieyUqYGH8Fa3kA==}
+
   embla-carousel-react@8.6.0:
     resolution: {integrity: sha512-0/PjqU7geVmo6F734pmPqpyHqiM99olvyecY7zdweCw+6tKEXnrE90pBiBbMMU8s5tICemzpQ3hi5EpxzGW+JA==}
     peerDependencies:
@@ -3553,6 +3585,10 @@ packages:
     resolution: {integrity: sha512-wzsgA6WOq+09wrU1tsJ09udeR/YZRaeArL9e1wPbFg3GG2yDnC2ldKpxs4xunpFF9DgqCqOIra3bc1HWrJ37Ww==}
     engines: {node: '>=0.4.x'}
 
+  frac@1.1.2:
+    resolution: {integrity: sha512-w/XBfkibaTl3YDqASwfDUqkna4Z2p9cFSr1aHDt0WoMTECnRfBOv2WArlZILlqgWlmdIlALXGpM2AOhEk5W3IA==}
+    engines: {node: '>=0.8'}
+
   framer-motion@12.34.0:
     resolution: {integrity: sha512-+/H49owhzkzQyxtn7nZeF4kdH++I2FWrESQ184Zbcw5cEqNHYkE5yxWxcTLSj5lNx3NWdbIRy5FHqUvetD8FWg==}
     peerDependencies:
@@ -4190,6 +4226,9 @@ packages:
   lodash.merge@4.6.2:
     resolution: {integrity: sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==}
 
+  lodash@4.18.1:
+    resolution: {integrity: sha512-dMInicTPVE8d1e5otfwmmjlxkZoUpiVLwyeTdUsi/Caj/gfzzblBcCE5sRHV/AsjuCmxWrte2TNGSYuCeCq+0Q==}
+
   longest-streak@3.1.0:
     resolution: {integrity: sha512-9Ri+o0JYgehTaVBBDoMqIl8GXtbWg711O3srftcHhZ0dqnETqLaoIK0x17fUw9rFSlK/0NlsKe0Ahhyl5pXE2g==}
 
@@ -4818,6 +4857,9 @@ packages:
     resolution: {integrity: sha512-OW/rX8O/jXnm82Ey1k44pObPtdblfiuWnrd8X7GJ7emImCOstunGbXUpp7HdBrFQX6rJzn3sPT397Wp5aCwCHg==}
     engines: {node: ^10 || ^12 || >=14}
 
+  pptx-preview@1.0.7:
+    resolution: {integrity: sha512-YByocJuyxAR4YB4Q3+VAxdLfEvA5LojG1gAJsx2Mw0QU5FJPps/2fkJOupJ6oBbA+KdWRpuAk6G6T34rKCHVxw==}
+
   prelude-ls@1.2.1:
     resolution: {integrity: sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==}
     engines: {node: '>= 0.8.0'}
@@ -5274,6 +5316,10 @@ packages:
     resolution: {integrity: sha512-SBMgkuJYvP4F62daRfBNwYC2nXTEhNXAfsBZ/BB7Ly85/KnbnjmKM7/45ZrFbH6jIMiAliDUDPSZFUuXDvcg6A==}
     hasBin: true
 
+  ssf@0.11.2:
+    resolution: {integrity: sha512-+idbmIXoYET47hH+d7dfm2epdOMUDjqcB4648sTZ+t2JwoyBFL/insLfB/racrDmsKB3diwsDA696pZMieAC5g==}
+    engines: {node: '>=0.8'}
+
   stable-hash@0.0.5:
     resolution: {integrity: sha512-+L3ccpzibovGXFK+Ap/f8LOS0ahMrHTf3xu7mMLSpEGU0EO9ucaysSylKo9eRDFNhWve/y275iPmIZ4z39a9iA==}
 
@@ -5449,6 +5495,9 @@ packages:
   tsconfig-paths@3.15.0:
     resolution: {integrity: sha512-2Ac2RgzDe/cn48GvOe3M+o82pEFewD3UPbyoUHHdKasHwJKjds4fLXWf/Ux5kATBKN20oaFGu+jbElp1pos0mg==}
 
+  tslib@2.3.0:
+    resolution: {integrity: sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg==}
+
   tslib@2.8.1:
     resolution: {integrity: sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==}
 
@@ -5800,10 +5849,23 @@ packages:
   wicked-good-xpath@1.3.0:
     resolution: {integrity: sha512-Gd9+TUn5nXdwj/hFsPVx5cuHHiF5Bwuc30jZ4+ronF1qHK5O7HD0sgmXWSEgwKquT3ClLoKPVbO6qGwVwLzvAw==}
 
+  wmf@1.0.2:
+    resolution: {integrity: sha512-/p9K7bEh0Dj6WbXg4JG0xvLQmIadrner1bi45VMJTfnbVHsc7yIajZyoSoK60/dtVBs12Fm6WkUI5/3WAVsNMw==}
+    engines: {node: '>=0.8'}
+
   word-wrap@1.2.5:
     resolution: {integrity: sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==}
     engines: {node: '>=0.10.0'}
 
+  word@0.3.0:
+    resolution: {integrity: sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA==}
+    engines: {node: '>=0.8'}
+
+  xlsx@0.18.5:
+    resolution: {integrity: sha512-dmg3LCjBPHZnQp5/F/+nnTa+miPJxUXB6vtk42YjBBKayDNagxGEeIdWApkYPOf3Z3pm3k62Knjzp7lMeTEtFQ==}
+    engines: {node: '>=0.8'}
+    hasBin: true
+
   xml-js@1.6.11:
     resolution: {integrity: sha512-7rVi2KMfwfWFl+GpPg6m80IVMWXLRjO+PxTq7V2CDhoGak0wzYzFgUY2m4XJ47OGdXd8eLE8EmwfAmdjw7lC1g==}
     hasBin: true
@@ -5836,6 +5898,9 @@ packages:
   zod@4.3.6:
     resolution: {integrity: sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==}
 
+  zrender@5.6.1:
+    resolution: {integrity: sha512-OFXkDJKcrlx5su2XbzJvj/34Q3m6PvyCZkVPHGYpcCJ52ek4U/ymZyfuV1nKE23AyBJ51E/6Yr0mhZ7xGTO4ag==}
+
   zustand@4.5.7:
     resolution: {integrity: sha512-CHOUy7mu3lbD6o6LJLfllpjkzhHXSBlX8B9+qPddUsIfeF5S/UZ5q0kmCsnRqT1UHFQZchNFDDzMbQsuesHWlw==}
     engines: {node: '>=12.7.0'}
@@ -8234,6 +8299,8 @@ snapshots:
 
   acorn@8.15.0: {}
 
+  adler-32@1.3.1: {}
+
   ai@6.0.78(zod@3.25.76):
     dependencies:
       '@ai-sdk/gateway': 3.0.39(zod@3.25.76)
@@ -8476,6 +8543,11 @@ snapshots:
 
   ccount@2.0.1: {}
 
+  cfb@1.2.2:
+    dependencies:
+      adler-32: 1.3.1
+      crc-32: 1.2.2
+
   chalk@4.1.2:
     dependencies:
       ansi-styles: 4.3.0
@@ -8564,6 +8636,8 @@ snapshots:
       '@codemirror/state': 6.5.4
       '@codemirror/view': 6.39.13
 
+  codepage@1.15.0: {}
+
   collapse-white-space@2.1.0: {}
 
   color-convert@2.0.1:
@@ -8609,6 +8683,8 @@ snapshots:
     dependencies:
       layout-base: 2.0.1
 
+  crc-32@1.2.2: {}
+
   crelt@1.0.6: {}
 
   cross-spawn@7.0.6:
@@ -8899,6 +8975,10 @@ snapshots:
     dependencies:
       esutils: 2.0.3
 
+  docx-preview@0.3.7:
+    dependencies:
+      jszip: 3.10.1
+
   docx@9.6.1:
     dependencies:
       '@types/node': 25.5.0
@@ -8920,6 +9000,11 @@ snapshots:
       es-errors: 1.3.0
       gopd: 1.2.0
 
+  echarts@5.6.0:
+    dependencies:
+      tslib: 2.3.0
+      zrender: 5.6.1
+
   embla-carousel-react@8.6.0(react@19.2.4):
     dependencies:
       embla-carousel: 8.6.0
@@ -9449,6 +9534,8 @@ snapshots:
 
   format@0.2.2: {}
 
+  frac@1.1.2: {}
+
   framer-motion@12.34.0(react-dom@19.2.4(react@19.2.4))(react@19.2.4):
     dependencies:
       motion-dom: 12.34.0
@@ -10154,6 +10241,8 @@ snapshots:
 
   lodash.merge@4.6.2: {}
 
+  lodash@4.18.1: {}
+
   longest-streak@3.1.0: {}
 
   loose-envify@1.4.0:
@@ -11179,6 +11268,14 @@ snapshots:
       picocolors: 1.1.1
       source-map-js: 1.2.1
 
+  pptx-preview@1.0.7:
+    dependencies:
+      echarts: 5.6.0
+      jszip: 3.10.1
+      lodash: 4.18.1
+      tslib: 2.8.1
+      uuid: 10.0.0
+
   prelude-ls@1.2.1: {}
 
   prettier-plugin-tailwindcss@0.6.14(prettier@3.8.1):
@@ -11771,6 +11868,10 @@ snapshots:
       commander: 13.1.0
       wicked-good-xpath: 1.3.0
 
+  ssf@0.11.2:
+    dependencies:
+      frac: 1.1.2
+
   stable-hash@0.0.5: {}
 
   stackblur-canvas@2.7.0:
@@ -11966,6 +12067,8 @@ snapshots:
       minimist: 1.2.8
       strip-bom: 3.0.0
 
+  tslib@2.3.0: {}
+
   tslib@2.8.1: {}
 
   tw-animate-css@1.4.0: {}
@@ -12335,8 +12438,22 @@ snapshots:
 
   wicked-good-xpath@1.3.0: {}
 
+  wmf@1.0.2: {}
+
   word-wrap@1.2.5: {}
 
+  word@0.3.0: {}
+
+  xlsx@0.18.5:
+    dependencies:
+      adler-32: 1.3.1
+      cfb: 1.2.2
+      codepage: 1.15.0
+      crc-32: 1.2.2
+      ssf: 0.11.2
+      wmf: 1.0.2
+      word: 0.3.0
+
   xml-js@1.6.11:
     dependencies:
       sax: 1.6.0
@@ -12357,6 +12474,10 @@ snapshots:
 
   zod@4.3.6: {}
 
+  zrender@5.6.1:
+    dependencies:
+      tslib: 2.3.0
+
   zustand@4.5.7(@types/react@19.2.13)(react@19.2.4):
     dependencies:
       use-sync-external-store: 1.6.0(react@19.2.4)

frontend/src/components/ai-elements/chain-of-thought.tsx

@@ -116,6 +116,7 @@ export const ChainOfThoughtHeader = memo(
 export type ChainOfThoughtStepProps = ComponentProps<"div"> & {
   icon?: LucideIcon | React.ReactElement;
   label: ReactNode;
+  action?: ReactNode;
   description?: ReactNode;
   status?: "complete" | "active" | "pending";
 };
@@ -125,6 +126,7 @@ export const ChainOfThoughtStep = memo(
     className,
     icon: Icon = DotIcon,
     label,
+    action,
     description,
     status = "complete",
     children,
@@ -151,7 +153,10 @@ export const ChainOfThoughtStep = memo(
           <div className="bg-border absolute top-7 bottom-0 left-1/2 -mx-px w-px" />
         </div>
         <div className="flex-1 space-y-2 overflow-hidden">
-          <div>{label}</div>
+          <div className="flex items-start justify-between gap-2">
+            <div>{label}</div>
+            {action && <div className="shrink-0">{action}</div>}
+          </div>
           {description && (
             <div className="text-muted-foreground text-xs">{description}</div>
           )}

frontend/src/components/workspace/artifacts/artifact-file-detail.tsx

@@ -8,12 +8,15 @@ import {
   useCallback,
   useEffect,
   useMemo,
+  useRef,
   useState,
+  type CSSProperties,
   type ComponentProps,
   type HTMLAttributes,
 } from "react";
 import { toast } from "sonner";
 import { Streamdown } from "streamdown";
+import * as XLSX from "xlsx";
 
 import {
   Artifact,
@@ -489,13 +492,22 @@ export function ArtifactFileDetail({
           </div>
         )}
         {!isCodeFile && (
-          <PreviewIframe
+          isOfficePreviewKind(artifactPreviewKind) ? (
-            className="size-full border-0"
+            <ArtifactOfficePreview
-            containerClassName="h-full mb-[207px]"
+              className="h-full mb-[207px]"
-            srcDoc={artifactViewerSrcDoc}
+              kind={artifactPreviewKind}
-            sandbox="allow-same-origin allow-scripts allow-downloads"
+              artifactUrl={artifactUrl}
-            title={`Artifact preview: ${fileName}`}
+              fileName={fileName}
-          />
+            />
+          ) : (
+            <PreviewIframe
+              className="size-full border-0"
+              containerClassName="h-full mb-[207px]"
+              srcDoc={artifactViewerSrcDoc}
+              sandbox="allow-same-origin allow-scripts allow-downloads"
+              title={`Artifact preview: ${fileName}`}
+            />
+          )
         )}
       </ArtifactContent>
     </Artifact>
@@ -522,7 +534,7 @@ export function ArtifactFilePreview({
     return (
       <div
         className={cn("w-full bg-white  mb-[207px] p-[20px]")}
-        style={{ "--zoom-scale": zoomScale } as React.CSSProperties}
+        style={{ "--zoom-scale": zoomScale } as CSSProperties}
       >
         <Streamdown
           className="w-full"
@@ -588,6 +600,270 @@ function PreviewIframe({
   );
 }
 
+function ArtifactOfficePreview({
+  className,
+  kind,
+  artifactUrl,
+  fileName,
+}: {
+  className?: string;
+  kind: ArtifactPreviewKind;
+  artifactUrl: string;
+  fileName: string;
+}) {
+  const [isLoading, setIsLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+  const [xlsxHtml, setXlsxHtml] = useState<string>("");
+  const [sheetNames, setSheetNames] = useState<string[]>([]);
+  const [activeSheet, setActiveSheet] = useState<string>("");
+  const docxContainerRef = useRef<HTMLDivElement | null>(null);
+  const pptxContainerRef = useRef<HTMLDivElement | null>(null);
+  const workbookRef = useRef<XLSX.WorkBook | null>(null);
+
+  const canRenderDocx = kind === "docx";
+  const canRenderXlsx = kind === "xlsx";
+  const canRenderPptx = kind === "pptx";
+
+  useEffect(() => {
+    let disposed = false;
+
+    async function renderDocx() {
+      if (!canRenderDocx || !artifactUrl || !docxContainerRef.current) {
+        return;
+      }
+      setIsLoading(true);
+      setError(null);
+      try {
+        const response = await fetch(artifactUrl);
+        if (!response.ok) {
+          throw new Error(`HTTP ${response.status}`);
+        }
+        const blob = await response.blob();
+        const { renderAsync } = await import("docx-preview");
+        if (disposed || !docxContainerRef.current) {
+          return;
+        }
+        docxContainerRef.current.innerHTML = "";
+        await renderAsync(blob, docxContainerRef.current, undefined, {
+          ignoreWidth: false,
+          ignoreHeight: false,
+          breakPages: true,
+          inWrapper: true,
+        });
+      } catch (err) {
+        console.error("Failed to render docx preview:", err);
+        if (!disposed) {
+          setError("无法预览该 DOCX 文件。");
+        }
+      } finally {
+        if (!disposed) {
+          setIsLoading(false);
+        }
+      }
+    }
+
+    void renderDocx();
+    return () => {
+      disposed = true;
+    };
+  }, [artifactUrl, canRenderDocx]);
+
+  useEffect(() => {
+    let disposed = false;
+
+    async function parseXlsx() {
+      if (!canRenderXlsx || !artifactUrl) {
+        return;
+      }
+      setIsLoading(true);
+      setError(null);
+      workbookRef.current = null;
+      try {
+        const response = await fetch(artifactUrl);
+        if (!response.ok) {
+          throw new Error(`HTTP ${response.status}`);
+        }
+        const bytes = await response.arrayBuffer();
+        const workbook = XLSX.read(bytes, { type: "array" });
+        workbookRef.current = workbook;
+        const names = workbook.SheetNames ?? [];
+        if (names.length === 0) {
+          throw new Error("Empty workbook");
+        }
+        if (disposed) return;
+        setSheetNames(names);
+        const first = names[0] ?? "";
+        setActiveSheet(first);
+        const sheet = workbook.Sheets[first];
+        const html = sheet
+          ? XLSX.utils.sheet_to_html(sheet, { id: "artifact-xlsx-preview" })
+          : "";
+        setXlsxHtml(html);
+      } catch (err) {
+        console.error("Failed to render xlsx preview:", err);
+        if (!disposed) {
+          setError("无法预览该 Excel 文件。");
+        }
+      } finally {
+        if (!disposed) {
+          setIsLoading(false);
+        }
+      }
+    }
+
+    void parseXlsx();
+    return () => {
+      disposed = true;
+    };
+  }, [artifactUrl, canRenderXlsx]);
+
+  useEffect(() => {
+    if (!canRenderXlsx || !activeSheet || !workbookRef.current) {
+      return;
+    }
+    try {
+      const sheet = workbookRef.current.Sheets[activeSheet];
+      if (!sheet) return;
+      setXlsxHtml(XLSX.utils.sheet_to_html(sheet, { id: "artifact-xlsx-preview" }));
+    } catch (err) {
+      console.error("Failed to switch xlsx sheet:", err);
+      setError("切换工作表失败。");
+    }
+  }, [activeSheet, canRenderXlsx]);
+  useEffect(() => {
+    let disposed = false;
+
+    type PptxPreviewModule = {
+      init: (
+        container: HTMLElement,
+        options: { width: number; height: number },
+      ) => {
+        preview: (buffer: ArrayBuffer) => Promise<void> | void;
+      };
+    };
+
+    async function renderPptx() {
+      if (!canRenderPptx || !artifactUrl || !pptxContainerRef.current) {
+        return;
+      }
+      setIsLoading(true);
+      setError(null);
+      try {
+        const response = await fetch(artifactUrl);
+        if (!response.ok) {
+          throw new Error(`HTTP ${response.status}`);
+        }
+        const bytes = await response.arrayBuffer();
+        const pptxModule = (await import("pptx-preview")) as unknown as PptxPreviewModule;
+        if (disposed || !pptxContainerRef.current) {
+          return;
+        }
+        const container = pptxContainerRef.current;
+        container.innerHTML = "";
+        const previewer = pptxModule.init(container, { width: 960, height: 540 });
+        await Promise.resolve(previewer.preview(bytes));
+      } catch (err) {
+        console.error("Failed to render pptx preview:", err);
+        if (!disposed) {
+          setError("无法预览该 PPT 文件。");
+        }
+      } finally {
+        if (!disposed) {
+          setIsLoading(false);
+        }
+      }
+    }
+
+    void renderPptx();
+    return () => {
+      disposed = true;
+    };
+  }, [artifactUrl, canRenderPptx]);
+
+  return (
+    <div className={cn("relative h-full overflow-hidden bg-white", className)}>
+      {canRenderXlsx && sheetNames.length > 0 && (
+        <div className="border-border flex items-center gap-1 overflow-x-auto border-b p-2">
+          {sheetNames.map((sheetName) => (
+            <button
+              key={sheetName}
+              type="button"
+              className={cn(
+                "rounded px-2 py-1 text-xs whitespace-nowrap",
+                activeSheet === sheetName
+                  ? "bg-primary text-primary-foreground"
+                  : "bg-muted text-muted-foreground hover:text-foreground",
+              )}
+              onClick={() => setActiveSheet(sheetName)}
+            >
+              {sheetName}
+            </button>
+          ))}
+        </div>
+      )}
+
+      <div className="h-full overflow-auto p-4">
+        {canRenderDocx && (
+          <div
+            ref={docxContainerRef}
+            className="docx-preview-wrap mx-auto max-w-5xl"
+          />
+        )}
+        {canRenderXlsx && xlsxHtml && (
+          <div
+            className="artifact-xlsx-preview overflow-auto"
+            dangerouslySetInnerHTML={{ __html: xlsxHtml }}
+          />
+        )}
+        {canRenderPptx && (
+          <div
+            ref={pptxContainerRef}
+            className="pptx-preview-wrap mx-auto w-full overflow-auto"
+          />
+        )}
+      </div>
+
+      {error && (
+        <ArtifactPreviewFallback
+          fileName={fileName}
+          artifactUrl={artifactUrl}
+          message={error}
+        />
+      )}
+      {isLoading && (
+        <div className="absolute inset-0 z-10 flex items-center justify-center bg-white/85">
+          <LoaderIcon className="text-muted-foreground size-5 animate-spin" />
+        </div>
+      )}
+    </div>
+  );
+}
+
+function ArtifactPreviewFallback({
+  message,
+  fileName,
+  artifactUrl,
+}: {
+  message: string;
+  fileName: string;
+  artifactUrl: string;
+}) {
+  return (
+    <div className="absolute inset-0 z-20 grid place-content-center bg-white p-6 text-center">
+      <p className="text-foreground mb-2 text-sm font-medium">{fileName}</p>
+      <p className="text-muted-foreground mb-3 text-xs">{message}</p>
+      <a
+        className="text-primary text-sm font-medium underline"
+        href={artifactUrl}
+        target="_blank"
+        rel="noreferrer"
+      >
+        在新标签页打开
+      </a>
+    </div>
+  );
+}
+
 function rewriteArtifactImagePaths(content: string, threadId?: string) {
   if (!threadId || !/\/?mnt\/user-data\//.test(content)) {
     return content;
@@ -626,6 +902,9 @@ type ArtifactPreviewKind =
   | "video"
   | "audio"
   | "pdf"
+  | "docx"
+  | "xlsx"
+  | "pptx"
   | "other";
 
 function getArtifactPreviewKind(filepath: string): ArtifactPreviewKind {
@@ -636,9 +915,22 @@ function getArtifactPreviewKind(filepath: string): ArtifactPreviewKind {
   if (/\.(mp4|webm|ogg|mov|m4v)$/.test(lower)) return "video";
   if (/\.(mp3|wav|ogg|m4a|aac|flac)$/.test(lower)) return "audio";
   if (lower.endsWith(".pdf")) return "pdf";
+  if (/\.(docx?)$/.test(lower)) return "docx";
+  if (/\.(xlsx?)$/.test(lower)) return "xlsx";
+  if (/\.(pptx?)$/.test(lower)) return "pptx";
   return "other";
 }
 
+const OFFICE_PREVIEW_KINDS = new Set<ArtifactPreviewKind>([
+  "docx",
+  "xlsx",
+  "pptx",
+]);
+
+function isOfficePreviewKind(kind: ArtifactPreviewKind) {
+  return OFFICE_PREVIEW_KINDS.has(kind);
+}
+
 function escapeHtml(value: string): string {
   return value
     .replaceAll("&", "&amp;")

frontend/src/components/workspace/messages/message-group.tsx

@@ -39,6 +39,8 @@ import { Tooltip } from "../tooltip";
 
 import { MarkdownContent } from "./markdown-content";
 
+const TOOL_CONTENT_COLLAPSE_THRESHOLD = 320;
+
 export function MessageGroup({
   className,
   messages,
@@ -212,6 +214,33 @@ function ToolCall({
   const { t } = useI18n();
   const { setOpen, autoOpen, autoSelect, selectedArtifact, select } =
     useArtifacts();
+  const [isCommandExpanded, setIsCommandExpanded] = useState(false);
+
+  const ExpandableToolContent = ({
+    content,
+    language = "bash",
+    expanded = false,
+  }: {
+    content: string;
+    language?: string;
+    expanded?: boolean;
+  }) => {
+    const shouldCollapse = content.length > TOOL_CONTENT_COLLAPSE_THRESHOLD;
+    const shouldShowCodeBlock = !shouldCollapse || expanded;
+
+    return (
+      <div className="space-y-1">
+        {shouldShowCodeBlock && (
+          <CodeBlock
+            className="mx-0 cursor-pointer border-none px-0"
+            showLineNumbers={false}
+            language={language}
+            code={content}
+          />
+        )}
+      </div>
+    );
+  };
 
   if (name === "web_search") {
     let label: React.ReactNode = t.toolCalls.searchForRelatedInfo;
@@ -386,19 +415,31 @@ function ToolCall({
       return t.toolCalls.executeCommand;
     }
     const command: string | undefined = (args as { command: string })?.command;
+    const shouldCollapse = !!command && command.length > TOOL_CONTENT_COLLAPSE_THRESHOLD;
     return (
       <ChainOfThoughtStep
         key={id}
         label={description}
         icon={SquareTerminalIcon}
+        action={shouldCollapse
+          ? (
+            <Button
+              className="h-7 px-0 text-xs"
+              variant="ghost"
+              onClick={(event) => {
+                event.stopPropagation();
+                setIsCommandExpanded((prev) => !prev);
+              }}
+            >
+              {isCommandExpanded
+                ? t.toolCalls.collapseContent
+                : t.toolCalls.expandContent}
+            </Button>
+          )
+          : undefined}
       >
         {command && (
-          <CodeBlock
+          <ExpandableToolContent content={command} expanded={isCommandExpanded} />
-            className="mx-0 cursor-pointer border-none px-0"
-            showLineNumbers={false}
-            language="bash"
-            code={command}
-          />
         )}
       </ChainOfThoughtStep>
     );

frontend/src/core/i18n/locales/en-US.ts

@@ -277,6 +277,8 @@ export const enUS: Translations = {
     writeFile: "Write file",
     clickToViewContent: "Click to view file content",
     writeTodos: "Update to-do list",
+    expandContent: "Expand",
+    collapseContent: "Collapse",
     skillInstallTooltip: "Install skill and make it available to DeerFlow",
   },
 

frontend/src/core/i18n/locales/types.ts

@@ -208,6 +208,8 @@ export interface Translations {
     writeFile: string;
     clickToViewContent: string;
     writeTodos: string;
+    expandContent: string;
+    collapseContent: string;
     skillInstallTooltip: string;
   };
 

frontend/src/core/i18n/locales/zh-CN.ts

@@ -265,6 +265,8 @@ export const zhCN: Translations = {
     writeFile: "写入文件",
     clickToViewContent: "点击查看文件内容",
     writeTodos: "更新 To-do 列表",
+    expandContent: "展开",
+    collapseContent: "收起",
     skillInstallTooltip: "安装技能并使其可在 DeerFlow 中使用",
   },
 

frontend/src/styles/globals.css

@@ -491,3 +491,11 @@ pre {
   overflow: hidden;
   contain: paint;
 }
+
+.pptx-preview-wrap {
+  height: 100%;
+}
+
+.pptx-preview-wrap .pptx-preview-wrapper {
+  height: 100% !important;
+}