Add srcObject attribute of type MediaStream to HTMLMediaElement.

third_party/WebKit/Source/modules/mediastream/HTMLMediaElementMediaStream.cpp

+// Copyright 2015 The Chromium Authors. All rights reserved.

[haraken, 2016/03/18 23:37:40]

2016

[Guido Urdaneta, 2016/03/20 12:16:30]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "modules/mediastream/HTMLMediaElementMediaStream.h"
+
+#include "modules/mediastream/MediaStream.h"
+#include "modules/mediastream/URLMediaStream.h"
+
+namespace blink {
+
+HTMLMediaElementMediaStream::HTMLMediaElementMediaStream()
+    : m_srcObject(nullptr)
+{
+}
+
+// static
+MediaStream* HTMLMediaElementMediaStream::srcObject(HTMLMediaElement& element)
+{
+    HTMLMediaElementMediaStream& thisElement = HTMLMediaElementMediaStream::from(element);
+    return thisElement.m_srcObject;
+}
+
+// static
+void HTMLMediaElementMediaStream::setSrcObject(HTMLMediaElement& element, MediaStream* mediaStream)
+{
+    HTMLMediaElementMediaStream& thisElement = HTMLMediaElementMediaStream::from(element);
+    thisElement.m_srcObject = mediaStream;
+    AtomicString url(URLMediaStream::createObjectURL(element.getExecutionContext(), mediaStream));
+    element.setSrcObjectURL(url);
+}
+
+HTMLMediaElementMediaStream& HTMLMediaElementMediaStream::from(HTMLMediaElement& element)
+{
+    HTMLMediaElementMediaStream* supplement = static_cast<HTMLMediaElementMediaStream*>(WillBeHeapSupplement<HTMLMediaElement>::from(element, supplementName()));
+    if (!supplement) {
+        supplement = new HTMLMediaElementMediaStream();
+        provideTo(element, supplementName(), adoptPtrWillBeNoop(supplement));
+    }
+    return *supplement;
+}
+
+const char* HTMLMediaElementMediaStream::supplementName()
+{
+    return "HTMLMediaElementMediaStream";
+}
+
+DEFINE_TRACE(HTMLMediaElementMediaStream)
+{
+    visitor->trace(m_srcObject);
+    WillBeHeapSupplement<HTMLMediaElement>::trace(visitor);
+}
+
+} // namespace blink