video upload support

winsdkfb/winsdkfb/winsdkfb.Shared/FBVideo.cpp.tt

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+<#@ template debug="false" hostspecific="false" language="C#" #>
+<# string classDefFile = "..\\winsdkfb.Shared\\FBVideo.xml"; #>
+<#@ include file="FBGraphObjectImplementation.ttinclude" #>

winsdkfb/winsdkfb/winsdkfb.Shared/FBVideo.h.tt

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+<#@ template debug="false" hostspecific="false" language="C#" #>
+<# string classDefFile = "..\\winsdkfb.Shared\\FBVideo.xml"; #>
+<#@ include file="FBGraphObjectHeader.ttinclude" #>

winsdkfb/winsdkfb/winsdkfb.Shared/FBVideo.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<class name="FBVideo" bindable="no">
+    <property name="id" type="string" />
+    <property name="post_id" type="string" />
+    <property name="upload_session_id" type="string" />
+    <property name="video_id" type="string" />
+    <property name="start_offset" type="string" />
+    <property name="end_offset" type="string" />
+    <property name="success" type="bool" />
+</class>

winsdkfb/winsdkfb/winsdkfb.Shared/FBVideoContentStream.cpp

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+//******************************************************************************
+//
+// Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+//
+// This code is licensed under the MIT License (MIT).
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+//******************************************************************************
+
+#include "pch.h"
+#include "FBVideoContentStream.h"
+
+using namespace concurrency;
+using namespace Windows::Storage::Streams;
+using namespace Windows::Foundation;
+
+FBVideoContentStream::FBVideoContentStream(
+        IRandomAccessStream^ stream,
+        Platform::String^ contentType
+    ) :
+    _contentType{contentType},
+    _stream{stream}
+{
+}
+
+IAsyncOperationWithProgress<IBuffer^, unsigned int>^ FBVideoContentStream::ReadAsync(
+    Windows::Storage::Streams::IBuffer^ buffer,
+    unsigned int count,
+    Windows::Storage::Streams::InputStreamOptions options
+    )
+{
+    return _stream->ReadAsync(buffer, count, options);
+}
+
+IAsyncOperationWithProgress<unsigned int, unsigned int>^ FBVideoContentStream::WriteAsync(Windows::Storage::Streams::IBuffer^ buffer)
+{
+    return _stream->WriteAsync(buffer);
+}
+
+IAsyncOperation<bool>^ FBVideoContentStream::FlushAsync()
+{
+    return _stream->FlushAsync();
+}
+
+bool FBVideoContentStream::CanRead::get()
+{
+    return _stream->CanRead;
+}
+
+bool FBVideoContentStream::CanWrite::get()
+{
+    return _stream->CanWrite;
+}
+
+unsigned long long FBVideoContentStream::Position::get()
+{
+    return _stream->Position;
+}
+
+unsigned long long FBVideoContentStream::Size::get()
+{
+    return _stream->Size;
+}
+
+void FBVideoContentStream::Size::set(unsigned long long value)
+{
+    _stream->Size = value;
+}
+
+IInputStream^ FBVideoContentStream::GetInputStreamAt(unsigned long long position)
+{
+    return _stream->GetInputStreamAt(position);
+}
+
+IOutputStream^ FBVideoContentStream::GetOutputStreamAt(unsigned long long position)
+{
+    return _stream->GetOutputStreamAt(position);
+}
+
+void FBVideoContentStream::Seek(unsigned long long position)
+{
+    _stream->Seek(position);
+}
+
+IRandomAccessStream^ FBVideoContentStream::CloneStream()
+{
+    return ref new FBVideoContentStream(_stream->CloneStream(), _contentType);
+}
+
+Platform::String^ FBVideoContentStream::ContentType::get()
+{
+    return _contentType;
+}
+
+FBVideoContentStream::~FBVideoContentStream()
+{
+}
+
+IAsyncOperation<FBVideoContentStream^>^ FBVideoContentStream::TruncateCloneStreamAsync(unsigned long long position, unsigned int size)
+{
+    unsigned long long oldPosition = _stream->Position;
+    _stream->Seek(position);
+    IBuffer^ buffer = ref new Buffer(size);
+
+    task<FBVideoContentStream^> workTask = create_task(_stream->ReadAsync(buffer, size, InputStreamOptions::None)).then([=](IBuffer^ filledBuffer)
+    {
+        _stream->Seek(oldPosition);
+        InMemoryRandomAccessStream^ memoryStream = ref new InMemoryRandomAccessStream();
+        return create_task(memoryStream->WriteAsync(filledBuffer)).then([=](unsigned int count)
+        {
+            memoryStream->Seek(0);
+            return ref new FBVideoContentStream(memoryStream, _contentType);
+        });
+    });
+    return create_async([=]()
+    {
+        return workTask;
+    });
+}

winsdkfb/winsdkfb/winsdkfb.Shared/FBVideoContentStream.h

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+//******************************************************************************
+//
+// Copyright (c) 2016 Microsoft Corporation. All rights reserved.
+//
+// This code is licensed under the MIT License (MIT).
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+//******************************************************************************
+
+#pragma once
+
+using namespace Windows::Storage::Streams;
+
+ref class FBVideoContentStream sealed : IRandomAccessStreamWithContentType
+{
+public:
+
+    FBVideoContentStream(
+        IRandomAccessStream^ stream,
+        Platform::String^ contentType
+    );
+
+    // Inherited via IRandomAccessStream
+    virtual Windows::Foundation::IAsyncOperationWithProgress<Windows::Storage::Streams::IBuffer^, unsigned int>^
+    ReadAsync(
+        Windows::Storage::Streams::IBuffer^buffer,
+        unsigned int count,
+        Windows::Storage::Streams::InputStreamOptions options
+        );
+
+    virtual Windows::Foundation::IAsyncOperationWithProgress<unsigned int, unsigned int>^
+    WriteAsync(
+        Windows::Storage::Streams::IBuffer^buffer
+        );
+
+    virtual Windows::Foundation::IAsyncOperation<bool>^ FlushAsync();
+
+    virtual property bool CanRead
+    {
+        bool get();
+    }
+
+    virtual property bool CanWrite
+    {
+        bool get();
+    }
+
+    virtual property unsigned long long Position
+    {
+        unsigned long long get();
+    }
+
+    virtual property unsigned long long Size
+    {
+        unsigned long long get();
+        void set(unsigned long long);
+    }
+
+    virtual Windows::Storage::Streams::IInputStream^ GetInputStreamAt(
+        unsigned long long position
+        );
+
+    virtual Windows::Storage::Streams::IOutputStream^ GetOutputStreamAt(
+        unsigned long long position
+        );
+
+    virtual void Seek(
+        unsigned long long position
+        );
+
+    virtual Windows::Storage::Streams::IRandomAccessStream^ CloneStream();
+
+    // Inherited via IContentTypeProvider
+    virtual property Platform::String^ ContentType
+    {
+        Platform::String^ get();
+    }
+
+    virtual ~FBVideoContentStream();
+
+    /**
+     * Clones a portion of the stream into another object.
+     * @param position The position in the stream to start the clone at
+     * @param size The amount of bytes to clone
+     * @return The cloned, truncated FBVideoContentStream
+     */
+    Windows::Foundation::IAsyncOperation<FBVideoContentStream^>^ TruncateCloneStreamAsync(
+        unsigned long long position,
+        unsigned int size
+        );
+private:
+    Platform::String^ _contentType;
+    IRandomAccessStream^ _stream;
+};