[PATCH v4 1/4] include: Add DataWriter runtimeclass in windows.storage.streams.idl.

[Biswapriyo Nath]

From: Biswapriyo Nath

Required for https://github.com/mozilla/gecko-dev/blob/1b90936792b2c71ef931cb1b8d6baff9d8...
---
 include/windows.storage.streams.idl | 94 +++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)

diff --git a/include/windows.storage.streams.idl b/include/windows.storage.streams.idl
index cc58a037f13..372b4cee591 100644
--- a/include/windows.storage.streams.idl
+++ b/include/windows.storage.streams.idl
@@ -25,10 +25,14 @@ import "eventtoken.idl";
 import "windows.foundation.idl";

namespace Windows.Storage.Streams {
+    typedef enum ByteOrder ByteOrder;
+    typedef enum UnicodeEncoding UnicodeEncoding;
     interface IBuffer;
     interface IBufferFactory;
     interface IBufferStatics;
     interface IContentTypeProvider;
+    interface IDataWriter;
+    interface IDataWriterFactory;
     interface IInputStream;
     interface IInputStreamReference;
     interface IOutputStream;
@@ -38,6 +42,8 @@ namespace Windows.Storage.Streams {
     interface IRandomAccessStreamStatics;
     interface IRandomAccessStreamWithContentType;
     runtimeclass Buffer;
+    runtimeclass DataWriter;
+    runtimeclass DataWriterStoreOperation;
     runtimeclass InMemoryRandomAccessStream;
     runtimeclass RandomAccessStream;
     runtimeclass RandomAccessStreamReference;
@@ -53,6 +59,25 @@ namespace Windows.Storage.Streams {
         interface Windows.Foundation.IAsyncOperation<Windows.Storage.Streams.IRandomAccessStream *>;
     }

+    [
+        contract(Windows.Foundation.UniversalApiContract, 1.0)
+    ]
+    enum ByteOrder
+    {
+        LittleEndian = 0,
+        BigEndian    = 1,
+    };
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 1.0)
+    ]
+    enum UnicodeEncoding
+    {
+        Utf8    = 0,
+        Utf16LE = 1,
+        Utf16BE = 2,
+    };
+
     [
         contract(Windows.Foundation.UniversalApiContract, 1.0),
         uuid(905a0fe0-bc53-11df-8c49-001e4fc686da)
@@ -88,6 +113,53 @@ namespace Windows.Storage.Streams {
                                               [out, retval] Windows.Foundation.MemoryBuffer **value);
     }

+    [
+        contract(Windows.Foundation.UniversalApiContract, 1.0),
+        uuid(64b89265-d341-4922-b38a-dd4af8808c4e)
+    ]
+    interface IDataWriter : IInspectable
+    {
+        [propget] HRESULT UnstoredBufferLength([out, retval] UINT32 *value);
+        [propget] HRESULT UnicodeEncoding([out, retval] Windows.Storage.Streams.UnicodeEncoding *value);
+        [propput] HRESULT UnicodeEncoding([in] Windows.Storage.Streams.UnicodeEncoding value);
+        [propget] HRESULT ByteOrder([out, retval] Windows.Storage.Streams.ByteOrder *value);
+        [propput] HRESULT ByteOrder([in] Windows.Storage.Streams.ByteOrder value);
+        HRESULT WriteByte([in] BYTE value);
+        HRESULT WriteBytes([in] UINT32 value_size, [in, size_is(value_size)] BYTE *value);
+        [overload("WriteBuffer")] HRESULT WriteBuffer([in] Windows.Storage.Streams.IBuffer *buffer);
+        [overload("WriteBuffer")] HRESULT WriteBufferRange([in] Windows.Storage.Streams.IBuffer *buffer, [in] UINT32 start, [in] UINT32 count);
+        HRESULT WriteBoolean([in] boolean value);
+        HRESULT WriteGuid([in] GUID value);
+        HRESULT WriteInt16([in] INT16 value);
+        HRESULT WriteInt32([in] INT32 value);
+        HRESULT WriteInt64([in] INT64 value);
+        HRESULT WriteUInt16([in] UINT16 value);
+        HRESULT WriteUInt32([in] UINT32 value);
+        HRESULT WriteUInt64([in] UINT64 value);
+        HRESULT WriteSingle([in] FLOAT value);
+        HRESULT WriteDouble([in] DOUBLE value);
+        HRESULT WriteDateTime([in] Windows.Foundation.DateTime value);
+        HRESULT WriteTimeSpan([in] Windows.Foundation.TimeSpan value);
+        HRESULT WriteString([in] HSTRING value, [out, retval] UINT32 *code_unit_count);
+        HRESULT MeasureString([in] HSTRING value, [out, retval] UINT32 *code_unit_count);
+        HRESULT StoreAsync([out, retval] Windows.Storage.Streams.DataWriterStoreOperation **operation);
+        HRESULT FlushAsync([out, retval] Windows.Foundation.IAsyncOperation<boolean> **operation);
+        HRESULT DetachBuffer([out, retval] Windows.Storage.Streams.IBuffer **buffer);
+        HRESULT DetachStream([out, retval] Windows.Storage.Streams.IOutputStream **output_stream);
+    }
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 1.0),
+        exclusiveto(Windows.Storage.Streams.DataWriter),
+        uuid(338c67c2-8b84-4c2b-9c50-7b8767847a1f)
+    ]
+    interface IDataWriterFactory : IInspectable
+    {
+        HRESULT CreateDataWriter(
+            [in] Windows.Storage.Streams.IOutputStream *output_stream,
+            [out, retval] Windows.Storage.Streams.DataWriter **data_writer);
+    }
+
     [
         contract(Windows.Foundation.UniversalApiContract, 1.0),
         uuid(905a0fe1-bc53-11df-8c49-001e4fc686da),
@@ -155,6 +227,28 @@ namespace Windows.Storage.Streams {
         [default] interface Windows.Storage.Streams.IBuffer;
     }

+    [
+        activatable(Windows.Foundation.UniversalApiContract, 1.0),
+        activatable(Windows.Storage.Streams.IDataWriterFactory, Windows.Foundation.UniversalApiContract, 1.0),
+        contract(Windows.Foundation.UniversalApiContract, 1.0),
+        marshaling_behavior(agile),
+        threading(both)
+    ]
+    runtimeclass DataWriter
+    {
+        [default] interface Windows.Storage.Streams.IDataWriter;
+        interface Windows.Foundation.IClosable;
+    }
+
+    [
+        contract(Windows.Foundation.UniversalApiContract, 1.0),
+        marshaling_behavior(agile)
+    ]
+    runtimeclass DataWriterStoreOperation
+    {
+        [default] interface Windows.Foundation.IAsyncOperation<UINT32>;
+    }
+
     [
         contract(Windows.Foundation.UniversalApiContract, 1.0),
         marshaling_behavior(agile),