1 files changed, 55 insertions, 0 deletions
diff --git a/widget/nsPrimitiveHelpers.h b/widget/nsPrimitiveHelpers.h
new file mode 100644
index 0000000000..952803a660
--- /dev/null
+++ b/widget/nsPrimitiveHelpers.h
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsPrimitiveHelpers_h___
+#define nsPrimitiveHelpers_h___
+
+#include "nsError.h"
+#include "nscore.h"
+
+class nsISupports;
+
+
+class nsPrimitiveHelpers
+{
+public:
+
+    // Given some data and the flavor it corresponds to, creates the appropriate
+    // nsISupports* wrapper for passing across IDL boundaries. The length parameter
+    // should not include the null if the data is null terminated.
+  static void CreatePrimitiveForData ( const char* aFlavor, const void* aDataBuff,
+                                         uint32_t aDataLen, nsISupports** aPrimitive ) ;
+
+    // A specific case of CreatePrimitive for windows CF_HTML handling in DataTransfer
+  static void CreatePrimitiveForCFHTML ( const void* aDataBuff,
+                                         uint32_t* aDataLen, nsISupports** aPrimitive ) ;
+
+    // Given a nsISupports* primitive and the flavor it represents, creates a new data
+    // buffer with the data in it. This data will be null terminated, but the length
+    // parameter does not reflect that.
+  static void CreateDataFromPrimitive ( const char* aFlavor, nsISupports* aPrimitive, 
+                                         void** aDataBuff, uint32_t aDataLen ) ;
+
+}; // class nsPrimitiveHelpers
+
+
+
+class nsLinebreakHelpers
+{
+public:
+
+    // Given some data, convert from the platform linebreaks into the LF expected by the
+    // DOM. This will attempt to convert the data in place, but the buffer may still need to
+    // be reallocated regardless (disposing the old buffer is taken care of internally, see
+    // the note below).
+    //
+    // NOTE: this assumes that it can use 'free' to dispose of the old buffer.
+  static nsresult ConvertPlatformToDOMLinebreaks ( const char* inFlavor, void** ioData, int32_t* ioLengthInBytes ) ;
+
+}; // class nsLinebreakHelpers
+
+
+#endif // nsPrimitiveHelpers_h___