Merge pull request #361 from adobe/rlim/handle-dropped-folder

Allow folder drop on top of Brackets app.

Author: bchintx

appshell/cef_main_window.cpp

@@ -366,14 +366,57 @@ void cef_main_window::RestoreWindowPlacement(int showCmd)
 BOOL cef_main_window::HandleCopyData(HWND, PCOPYDATASTRUCT lpCopyData) 
 {
     if ((lpCopyData) && (lpCopyData->dwData == ID_WM_COPYDATA_SENDOPENFILECOMMAND) && (lpCopyData->cbData > 0)) {
-        // another Brackets instance requests that we open the given filename
+        // another Brackets instance requests that we open the given files/folders
         std::wstring wstrFilename = (LPCWSTR)lpCopyData->lpData;
+        std::wstring wstrFileArray = L"[";
+        bool hasMultipleFiles = false;
+        
+        if (wstrFilename.find('"') != std::wstring::npos) {
+            if (wstrFilename.find(L"\" ") != std::wstring::npos ||
+               (wstrFilename.front() != '"' || wstrFilename.back() != '"')) {
+                hasMultipleFiles = true;
+            }
+        } else {
+            hasMultipleFiles = (wstrFilename.find(L" ") != std::wstring::npos);
+        }
 
-        // Windows Explorer might enclose the filename in double-quotes.  We need to strip these off.
-        if ((wstrFilename.front() == '\"') && wstrFilename.back() == '\"')
-            wstrFilename = wstrFilename.substr(1, wstrFilename.length() - 2);
+        if (hasMultipleFiles) {
+            std::size_t curFilePathEnd1 = wstrFilename.find(L" ");
+            std::size_t curFilePathEnd2 = wstrFilename.find(L"\" ");
+            std::size_t nextQuoteIndex  = wstrFilename.find(L"\"");
+ 
+            while ((nextQuoteIndex == 0 && curFilePathEnd2 != std::wstring::npos) || 
+                   (nextQuoteIndex != 0 && curFilePathEnd1 != std::wstring::npos)) {
+
+                if (nextQuoteIndex == 0 && curFilePathEnd2 != std::wstring::npos) {
+                    // Appending a file path that is already wrapped in double-quotes.
+                    wstrFileArray += (wstrFilename.substr(0, curFilePathEnd2 + 1) + L",");
+
+                    // Strip the current file path and move index to next file path.
+                    wstrFilename = wstrFilename.substr(curFilePathEnd2 + 2);
+                } else {
+                    // Explicitly wrap a file path in double-quotes and append it to the file array.
+                    wstrFileArray += (L"\"" + wstrFilename.substr(0, curFilePathEnd1) + L"\",");
+
+                    // Strip the current file path and move index to next file path.
+                    wstrFilename = wstrFilename.substr(curFilePathEnd1 + 1);
+                }
+
+                curFilePathEnd1 = wstrFilename.find(L" ");
+                curFilePathEnd2 = wstrFilename.find(L"\" ");
+                nextQuoteIndex = wstrFilename.find(L"\"");
+            }
+        }
+
+        // Add the last file or the only file into the file array.
+        if (wstrFilename.front() == '"' && wstrFilename.back() == '"') {
+            wstrFileArray += wstrFilename;
+        } else if (wstrFilename.length()) {
+            wstrFileArray += (L"\"" + wstrFilename + L"\"");
+        }
+        wstrFileArray += L"]";
 
-        g_handler->SendOpenFileCommand(g_handler->GetBrowser(), CefString(wstrFilename.c_str()));
+        g_handler->SendOpenFileCommand(g_handler->GetBrowser(), CefString(wstrFileArray.c_str()));
         return TRUE;
     }
 

appshell/cefclient_mac.mm

@@ -647,8 +647,17 @@ - (BOOL)application:(NSApplication *)theApplication openFiles:(NSArray *)filenam
     NSWindow* targetWindow = [clientApp findTargetWindow];
     if (targetWindow) {
       CefRefPtr<CefBrowser> browser = ClientHandler::GetBrowserForNativeWindow(targetWindow);
-      for (NSUInteger i = 0; i < [filenames count]; i++) {
-        g_handler->SendOpenFileCommand(browser, CefString([[filenames objectAtIndex:i] UTF8String]));
+      NSUInteger count = [filenames count];
+      if (count) {
+        std::string files = "[";
+        for (NSUInteger i = 0; i < count; i++) {
+          if (i > 0) {
+            files += ", ";
+          }
+          files += ("\"" + std::string([[filenames objectAtIndex:i] UTF8String]) + "\"");
+        }
+        files += "]";
+        g_handler->SendOpenFileCommand(browser, CefString(files));
       }
     }
   } else {

appshell/client_handler.cpp

@@ -349,10 +349,10 @@ bool ClientHandler::SendJSCommand(CefRefPtr<CefBrowser> browser, const CefString
   return browser->SendProcessMessage(PID_RENDERER, message);
 }
 
-void ClientHandler::SendOpenFileCommand(CefRefPtr<CefBrowser> browser, const CefString &filename) {
-  std::string filenameStr(filename);
+void ClientHandler::SendOpenFileCommand(CefRefPtr<CefBrowser> browser, const CefString &fileArray) {
+  std::string fileArrayStr(fileArray);
   // FIXME: Use SendJSCommand once it supports parameters
-  std::string cmd = "require('command/CommandManager').execute('file.addToWorkingSet',{fullPath:'" + filenameStr + "'})";
+  std::string cmd = "require('command/CommandManager').execute('file.openDroppedFiles'," + fileArrayStr + ")";
   browser->GetMainFrame()->ExecuteJavaScript(CefString(cmd.c_str()),
                                 browser->GetMainFrame()->GetURL(), 0);
 }