From adf4c39caf9db139241b7ca19031eb8d78ca45ba Mon Sep 17 00:00:00 2001
From: siam <31573022+siam-ese@users.noreply.github.com>
Date: Thu, 23 Jan 2025 16:45:21 +0800
Subject: [PATCH] feat: paste image if no excel html (#4558)

---
 .../services/clipboard/clipboard.service.ts   | 18 ++++++------
 .../sheets-ui/src/services/clipboard/utils.ts | 28 ++++++++++++++-----
 2 files changed, 31 insertions(+), 15 deletions(-)

diff --git a/packages/sheets-ui/src/services/clipboard/clipboard.service.ts b/packages/sheets-ui/src/services/clipboard/clipboard.service.ts
index d38a508cd3c..7e85426ec0b 100644
--- a/packages/sheets-ui/src/services/clipboard/clipboard.service.ts
+++ b/packages/sheets-ui/src/services/clipboard/clipboard.service.ts
@@ -75,7 +75,7 @@ import { UniverPastePlugin } from './html-to-usm/paste-plugins/plugin-univer';
 import { WordPastePlugin } from './html-to-usm/paste-plugins/plugin-word';
 import { COPY_TYPE } from './type';
 import { USMToHtmlService } from './usm-to-html/convertor';
-import { clipboardItemIsFromExcel, convertTextToTable, discreteRangeContainsRange, mergeSetRangeValues, rangeIntersectWithDiscreteRange } from './utils';
+import { convertTextToTable, discreteRangeContainsRange, htmlIsFromExcel, mergeSetRangeValues, rangeIntersectWithDiscreteRange } from './utils';
 
 export const PREDEFINED_HOOK_NAME = {
     DEFAULT_COPY: 'default-copy',
@@ -259,9 +259,11 @@ export class SheetClipboardService extends Disposable implements ISheetClipboard
                 ? await item.getType(HTML_CLIPBOARD_MIME_TYPE).then((blob) => blob && blob.text())
                 : '';
 
-        const imageIndex = types.findIndex((type) => imageMimeTypeSet.has(type));
+        const isFromExcel = htmlIsFromExcel(html);
 
-        if (imageIndex !== -1) {
+        // clipboard item from excel may contain image, so we need to check if the clipboard item is from excel
+        const imageIndex = types.findIndex((type) => imageMimeTypeSet.has(type));
+        if (imageIndex !== -1 && !isFromExcel) {
             const imageMimeType = types[imageIndex]!;
             const imageBlob = await item.getType(imageMimeType);
 
@@ -277,7 +279,7 @@ export class SheetClipboardService extends Disposable implements ISheetClipboard
 
         if (html) {
             // Firstly see if the html content is from Excel
-            if (this._platformService.isWindows && (await clipboardItemIsFromExcel(html))) {
+            if (this._platformService.isWindows && isFromExcel) {
                 this._notificationService.show({
                     type: 'warning',
                     title: this._localeService.t('clipboard.shortCutNotify.title'),
@@ -299,8 +301,10 @@ export class SheetClipboardService extends Disposable implements ISheetClipboard
         return false;
     }
 
-    legacyPaste(html?: string, text?: string, files?: File[]): Promise<boolean> {
-        if (files) {
+    async legacyPaste(html?: string, text?: string, files?: File[]): Promise<boolean> {
+        const isFromExcel = htmlIsFromExcel(html ?? '');
+
+        if (files && !isFromExcel) {
             return this._pasteFiles(files, PREDEFINED_HOOK_NAME.DEFAULT_PASTE);
         } else if (html) {
             return this._pasteHTML(html, PREDEFINED_HOOK_NAME.DEFAULT_PASTE);
@@ -314,8 +318,6 @@ export class SheetClipboardService extends Disposable implements ISheetClipboard
         } else {
             return this._pasteUnrecognized();
         }
-
-        // return Promise.resolve(false);
     }
 
     rePasteWithPasteType(type: IPasteHookKeyType): boolean {
diff --git a/packages/sheets-ui/src/services/clipboard/utils.ts b/packages/sheets-ui/src/services/clipboard/utils.ts
index b2b03e26f5d..d56c4a6a85a 100644
--- a/packages/sheets-ui/src/services/clipboard/utils.ts
+++ b/packages/sheets-ui/src/services/clipboard/utils.ts
@@ -14,11 +14,11 @@
  * limitations under the License.
  */
 
-import { ObjectMatrix } from '@univerjs/core';
-import { SetRangeValuesMutation } from '@univerjs/sheets';
 import type { ICellData, IMutationInfo, IObjectMatrixPrimitiveType, IRange, Nullable } from '@univerjs/core';
 import type { ISetRangeValuesMutationParams } from '@univerjs/sheets';
 import type { IDiscreteRange } from '../../controllers/utils/range-tools';
+import { ObjectMatrix } from '@univerjs/core';
+import { SetRangeValuesMutation } from '@univerjs/sheets';
 
 /**
  *
@@ -95,13 +95,27 @@ export const getRepeatRange = (sourceRange: IRange, targetRange: IRange, isStric
     return repeatList;
 };
 
-export async function clipboardItemIsFromExcel(html: string): Promise<boolean> {
-    if (html) {
-        const regex = /<td[^>]*class=".*?xl.*?"[^>]*>.*?<\/td>/;
-        return regex.test(html);
+export function htmlIsFromExcel(html: string): boolean {
+    if (!html) {
+        return false;
     }
 
-    return false;
+    const excelMarkers = [
+        // Excel class names
+        /<td[^>]*class=".*?xl.*?"[^>]*>/i,
+        // Excel namespace
+        /xmlns:x="urn:schemas-microsoft-com:office:excel"/i,
+        // Excel ProgID
+        /ProgId="Excel.Sheet"/i,
+        // Office specific namespace
+        /xmlns:o="urn:schemas-microsoft-com:office:office"/i,
+        // Excel specific style markers
+        /@mso-|mso-excel/i,
+        // Excel workbook metadata
+        /<x:ExcelWorkbook>/i,
+    ];
+
+    return excelMarkers.some((marker) => marker.test(html));
 }
 
 export function mergeCellValues(...cellValues: IObjectMatrixPrimitiveType<Nullable<ICellData>>[]) {