windows复制文件到剪切板

src/main/common/windowsClipboard.ts

@@ -0,0 +1,91 @@
+import { clipboard } from 'electron';
+import path from 'path';
+
+type ClipboardExModule = typeof import('electron-clipboard-ex');
+
+const DROPFILES_HEADER_SIZE = 20;
+
+let clipboardExModule: ClipboardExModule | null = null;
+
+const ensureClipboardEx = (): ClipboardExModule | null => {
+  if (process.platform !== 'win32') return null;
+  if (clipboardExModule) return clipboardExModule;
+  try {
+    // eslint-disable-next-line global-require, @typescript-eslint/no-var-requires
+    clipboardExModule = require('electron-clipboard-ex');
+  } catch {
+    clipboardExModule = null;
+  }
+  return clipboardExModule;
+};
+
+const buildWindowsFileListPayload = (files: string[]): Buffer =>
+  Buffer.from(`${files.join('\0')}\0\0`, 'utf16le');
+
+const buildWindowsFileDropBuffer = (files: string[]): Buffer => {
+  const payload = buildWindowsFileListPayload(files);
+  const header = Buffer.alloc(DROPFILES_HEADER_SIZE);
+  header.writeUInt32LE(DROPFILES_HEADER_SIZE, 0);
+  header.writeInt32LE(0, 4);
+  header.writeInt32LE(0, 8);
+  header.writeUInt32LE(0, 12);
+  header.writeUInt32LE(1, 16);
+
+  const result = Buffer.alloc(header.length + payload.length);
+  for (let i = 0; i < header.length; i += 1) {
+    result[i] = header[i];
+  }
+  for (let i = 0; i < payload.length; i += 1) {
+    result[header.length + i] = payload[i];
+  }
+  return result;
+};
+
+const buildDropEffectBuffer = (effect: 'copy' | 'move' | 'link' = 'copy') => {
+  const effectMap = {
+    copy: 1,
+    move: 2,
+    link: 4,
+  } as const;
+  const buffer = Buffer.alloc(4);
+  buffer.writeUInt32LE(effectMap[effect], 0);
+  return buffer;
+};
+
+const writeWindowsBuffers = (files: string[]): boolean => {
+  try {
+    clipboard.writeBuffer('CF_HDROP', buildWindowsFileDropBuffer(files));
+    clipboard.writeBuffer('FileNameW', buildWindowsFileListPayload(files));
+    clipboard.writeBuffer('Preferred DropEffect', buildDropEffectBuffer('copy'));
+    return clipboard.readBuffer('CF_HDROP').length > 0;
+  } catch {
+    return false;
+  }
+};
+
+const writeWithClipboardEx = (files: string[]): boolean => {
+  const clipboardEx = ensureClipboardEx();
+  if (!clipboardEx) return false;
+  try {
+    clipboardEx.writeFilePaths(files);
+    if (typeof clipboardEx.readFilePaths === 'function') {
+      const result = clipboardEx.readFilePaths();
+      return Array.isArray(result) && result.length === files.length;
+    }
+    return true;
+  } catch {
+    return false;
+  }
+};
+
+export const copyFilesToWindowsClipboard = (files: string[]): boolean => {
+  const normalizedFiles = files
+    .map((filePath) => path.normalize(filePath))
+    .filter(Boolean);
+  if (!normalizedFiles.length) return false;
+  if (writeWithClipboardEx(normalizedFiles)) {
+    return true;
+  }
+  return writeWindowsBuffers(normalizedFiles);
+};
+