third_party/WebKit/Source/modules/mediasource/MediaSourceRegistry.cpp

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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#include "modules/mediasource/MediaSourceRegistry.h"

#include "modules/mediasource/MediaSource.h"
#include "platform/weborigin/KURL.h"

namespace blink {

MediaSourceRegistry& MediaSourceRegistry::Registry() {
  DCHECK(IsMainThread());
  DEFINE_STATIC_LOCAL(MediaSourceRegistry, instance, ());
  return instance;
}

void MediaSourceRegistry::RegisterURL(SecurityOrigin*,
                                      const KURL& url,
                                      URLRegistrable* registrable) {
  DCHECK_EQ(&registrable->Registry(), this);
  DCHECK(IsMainThread());

  MediaSource* source = static_cast<MediaSource*>(registrable);
  source->AddedToRegistry();
  media_sources_.Set(url.GetString(), source);
}

void MediaSourceRegistry::UnregisterURL(const KURL& url) {
  DCHECK(IsMainThread());
  PersistentHeapHashMap<String, Member<MediaSource>>::iterator iter =
      media_sources_.find(url.GetString());
  if (iter == media_sources_.end())
    return;

  MediaSource* source = iter->value;
  media_sources_.erase(iter);
  source->RemovedFromRegistry();
}

URLRegistrable* MediaSourceRegistry::Lookup(const String& url) {
  DCHECK(IsMainThread());
  return url.IsNull() ? nullptr : media_sources_.at(url);
}

MediaSourceRegistry::MediaSourceRegistry() {
  HTMLMediaSource::SetRegistry(this);
}

}  // namespace blink