Implement HTMLMediaElement::srcObject.

Source/core/html/MediaProvider.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
-#include "core/dom/custom/CustomElementAsyncImportMicrotaskQueue.h"
+#include "core/html/MediaProvider.h"
 
-#include "core/dom/custom/CustomElementMicrotaskImportStep.h"
+#include "core/dom/DOMURL.h"
+#include "modules/mediasource/MediaSource.h"
+#include "modules/mediastream/MediaStream.h"
+#include "wtf/PassRefPtr.h"
 
 namespace blink {
 
-void CustomElementAsyncImportMicrotaskQueue::enqueue(PassOwnPtrWillBeRawPtr<CustomElementMicrotaskStep> step)
+MediaProvider::MediaProvider(PassRefPtrWillBeRawPtr<MediaStream> stream)
+    : m_mediastream(stream.get())
 {
-    m_queue.append(step);
 }
 
-void CustomElementAsyncImportMicrotaskQueue::doDispatch()
+MediaProvider::MediaProvider(PassRefPtrWillBeRawPtr<MediaSource> source)
+    : m_mediasource(source.get())
 {
-    WillBeHeapVector<OwnPtrWillBeMember<CustomElementMicrotaskStep> > remaining;
-
-    for (unsigned i = 0; i < m_queue.size(); ++i) {
-        if (CustomElementMicrotaskStep::Processing == m_queue[i]->process())
-            remaining.append(m_queue[i].release());
-    }
-
-    m_queue.swap(remaining);
 }
 
-} // namespace blink
+MediaStream* MediaProvider::mediaStream() const {
+    return m_mediastream.get();
+}
+
+MediaSource* MediaProvider::mediaSource() const {
+    return m_mediasource.get();
+}
+
+String MediaProvider::createObjectUrl() {
+    blink::ExecutionContext* context = NULL;
+    URLRegistrable* registrable = NULL;
+    if (m_mediastream) {
+        context = m_mediastream->executionContext();
+        registrable = m_mediastream.get();
+    } else if (m_mediasource) {
+        context = m_mediasource->executionContext();
+        registrable = m_mediasource.get();
+    }
+    return DOMURL::createPublicURL(context, registrable);
+}
+
+PassRefPtrWillBeRawPtr<MediaProvider> MediaProvider::createFromMediaStream(PassRefPtrWillBeRawPtr<MediaStream> stream)
+{
+    if (!stream)
+        return nullptr;
+    return adoptRefWillBeNoop(new MediaProvider(stream));
+}
+
+PassRefPtrWillBeRawPtr<MediaProvider> MediaProvider::createFromMediaSource(PassRefPtrWillBeRawPtr<MediaSource> source)
+{
+    if (!source)
+        return nullptr;
+    return adoptRefWillBeNoop(new MediaProvider(source));
+}
+
+void MediaProvider::trace(Visitor* visitor)
+{
+    visitor->trace(m_mediastream);
+}
+
+}  // namespace blink