支持复制文件

src/main/common/api.ts

@@ -28,6 +28,120 @@ import getWinPosition from './getWinPosition';
 import path from 'path';
 import commonConst from '@/common/utils/commonConst';
 
+const logCopyFile = (...messages: unknown[]) =>
+  console.log('[copyFile]', ...messages);
+
+const DROPFILES_HEADER_SIZE = 20;
+
+type ClipboardExModule = typeof import('electron-clipboard-ex');
+
+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');
+    logCopyFile('Loaded electron-clipboard-ex successfully');
+  } catch (error) {
+    logCopyFile('Failed to load electron-clipboard-ex', error);
+    clipboardExModule = null;
+  }
+  return clipboardExModule;
+};
+
+const buildWindowsFileListPayload = (files: string[]): Buffer => {
+  return Buffer.from(`${files.join('\0')}\0\0`, 'utf16le');
+};
+
+const parseWindowsFileListPayload = (payload: Buffer): string[] => {
+  if (!payload?.length) return [];
+  const trimmed = payload.toString('utf16le').replace(/\0+$/, '');
+  if (!trimmed) return [];
+  return trimmed.split('\0').filter(Boolean);
+};
+
+const buildWindowsFileDropBuffer = (files: string[]): Buffer => {
+  const payload = buildWindowsFileListPayload(files);
+  const header = Buffer.alloc(DROPFILES_HEADER_SIZE);
+  header.writeUInt32LE(DROPFILES_HEADER_SIZE, 0); // pFiles points to data offset
+  header.writeInt32LE(0, 4); // pt.x
+  header.writeInt32LE(0, 8); // pt.y
+  header.writeUInt32LE(0, 12); // fNC
+  header.writeUInt32LE(1, 16); // fWide => Unicode paths
+
+  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 parseWindowsDropBuffer = (buffer: Buffer): string[] => {
+  if (!buffer?.length || buffer.length < DROPFILES_HEADER_SIZE) {
+    return [];
+  }
+  const offset = buffer.readUInt32LE(0);
+  if (!offset || offset >= buffer.length) {
+    return [];
+  }
+  const payload = buffer.subarray(offset);
+  return parseWindowsFileListPayload(payload);
+};
+
+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 logAvailableFormats = (type: 'clipboard' | 'selection') => {
+  try {
+    logCopyFile(`availableFormats(${type})`, clipboard.availableFormats(type));
+  } catch (error) {
+    logCopyFile(`availableFormats(${type}) read failed`, error);
+  }
+};
+
+const debugWindowsClipboard = (phase = 'afterWrite') => {
+  logCopyFile('---- clipboard debug phase ----', phase);
+  logAvailableFormats('clipboard');
+  logAvailableFormats('selection');
+  try {
+    const drop = clipboard.readBuffer('CF_HDROP');
+    logCopyFile('CF_HDROP length', drop.length);
+    logCopyFile('CF_HDROP parsed', parseWindowsDropBuffer(drop));
+  } catch (error) {
+    logCopyFile('read CF_HDROP failed', error);
+  }
+  try {
+    const fileNameW = clipboard.readBuffer('FileNameW');
+    logCopyFile('FileNameW length', fileNameW.length);
+    logCopyFile('FileNameW parsed', parseWindowsFileListPayload(fileNameW));
+  } catch (error) {
+    logCopyFile('read FileNameW failed', error);
+  }
+  try {
+    const dropEffect = clipboard.readBuffer('Preferred DropEffect');
+    logCopyFile('DropEffect length', dropEffect.length);
+    logCopyFile(
+      'DropEffect value',
+      dropEffect.length ? dropEffect.readUInt32LE(0) : undefined
+    );
+  } catch (error) {
+    logCopyFile('read Preferred DropEffect failed', error);
+  }
+};
+
 const runnerInstance = runner();
 const detachInstance = detach();
 
@@ -230,13 +344,111 @@ class API extends DBInstance {
   }
 
   public copyFile({ data }) {
-    if (data.file && fs.existsSync(data.file)) {
-      clipboard.writeBuffer(
-        'NSFilenamesPboardType',
-        Buffer.from(plist.build([data.file]))
-      );
+    const input = data?.file;
+    logCopyFile('Input received', { input, platform: process.platform });
+    const candidateFiles = Array.isArray(input)
+      ? input
+      : typeof input === 'string'
+      ? [input]
+      : [];
+    logCopyFile('Candidate files', candidateFiles);
+
+    const targetFiles = candidateFiles
+      .map((filePath) =>
+        typeof filePath === 'string' ? filePath.trim() : ''
+      )
+      .filter((filePath) => {
+        if (!filePath) return false;
+        try {
+          return fs.existsSync(filePath);
+        } catch {
+          return false;
+        }
+      });
+
+    if (!targetFiles.length) {
+      logCopyFile('No valid files detected, abort copy');
+      return false;
+    }
+
+    if (process.platform === 'darwin') {
+      try {
+        clipboard.writeBuffer(
+          'NSFilenamesPboardType',
+          Buffer.from(plist.build(targetFiles))
+        );
+        logCopyFile('macOS clipboard write succeeded', targetFiles);
+      } catch (error) {
+        logCopyFile('macOS clipboard write failed', error);
+        return false;
+      }
       return true;
     }
+
+    if (process.platform === 'win32') {
+      const normalizedFiles = targetFiles.map((filePath) => {
+        const normalized = path.normalize(filePath);
+        logCopyFile('Normalized path', { original: filePath, normalized });
+        return normalized;
+      });
+
+      const clipboardExInstance = ensureClipboardEx();
+      if (clipboardExInstance) {
+        try {
+          const writeResult = clipboardExInstance.writeFilePaths(normalizedFiles);
+          logCopyFile('clipboard-ex write result', writeResult);
+          const readBack = clipboardExInstance.readFilePaths();
+          logCopyFile('clipboard-ex readback', readBack);
+          if (writeResult.length === normalizedFiles.length) {
+            logCopyFile('clipboard-ex copied all files, skipping Electron fallback');
+            return true;
+          }
+          logCopyFile(
+            'clipboard-ex copied fewer files than requested, continue with Electron fallback'
+          );
+        } catch (error) {
+          logCopyFile('clipboard-ex write failed, continue with Electron fallback', error);
+        }
+      } else {
+        logCopyFile('clipboard-ex not available, continue with Electron fallback');
+      }
+
+      try {
+        clipboard.writeBuffer(
+          'CF_HDROP',
+          buildWindowsFileDropBuffer(normalizedFiles)
+        );
+        clipboard.writeBuffer(
+          'FileNameW',
+          buildWindowsFileListPayload(normalizedFiles)
+        );
+        clipboard.writeBuffer(
+          'Preferred DropEffect',
+          buildDropEffectBuffer('copy')
+        );
+        logCopyFile('Electron clipboard write finished', normalizedFiles);
+      } catch (error) {
+        logCopyFile('Electron clipboard write failed', error);
+      }
+
+      debugWindowsClipboard('afterElectronWrite');
+
+      let dropBufferLength = 0;
+      try {
+        dropBufferLength = clipboard.readBuffer('CF_HDROP').length;
+      } catch (error) {
+        logCopyFile('Failed to read CF_HDROP after Electron write', error);
+        return false;
+      }
+      if (!dropBufferLength) {
+        logCopyFile('CF_HDROP buffer is empty after Electron write, copy failed');
+        return false;
+      }
+      logCopyFile('CF_HDROP buffer detected after Electron write, copy succeeded');
+      return true;
+    }
+
+    logCopyFile('Current platform is not supported yet');
     return false;
   }