1 files changed, 54 insertions, 0 deletions
diff --git a/widget/nsPrimitiveHelpers.h b/widget/nsPrimitiveHelpers.h
new file mode 100644
index 0000000000..54a903b444
--- /dev/null
+++ b/widget/nsPrimitiveHelpers.h
@@ -0,0 +1,54 @@
+/* -*- 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"
+#include "nsString.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 nsACString& 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 nsACString& 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(bool aIsSingleByteChars,
+                                                 void** ioData,
+                                                 int32_t* ioLengthInBytes);
+
+};  // class nsLinebreakHelpers
+
+#endif  // nsPrimitiveHelpers_h___