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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_MEDIA_CRYPTO_PEPPER_CDM_WRAPPER_IMPL_H_
#define CONTENT_RENDERER_MEDIA_CRYPTO_PEPPER_CDM_WRAPPER_IMPL_H_
#if !defined(ENABLE_PEPPER_CDMS)
#error This file should only be included when ENABLE_PEPPER_CDMS is defined
#endif
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "content/renderer/media/crypto/pepper_cdm_wrapper.h"
// TODO(dcheng): Temporary. Convert back to a forward declare.
#include "third_party/WebKit/public/web/WebLocalFrame.h"
namespace blink {
class WebHelperPlugin;
}
namespace content {
class ContentDecryptorDelegate;
class PepperPluginInstanceImpl;
// Deleter for blink::WebHelperPlugin.
struct WebHelperPluginDeleter {
void operator()(blink::WebHelperPlugin* plugin) const;
};
// Implements a wrapper on blink::WebHelperPlugin so that the plugin gets
// destroyed properly. It owns all the objects derived from WebHelperPlugin
// (WebPlugin, PepperPluginInstanceImpl, ContentDecryptionDelegate), and will
// free them as necessary when this wrapper is destroyed. In particular, it
// takes a reference to PepperPluginInstanceImpl so it won't go away until
// this object is destroyed.
//
// Implemented so that lower layers in Chromium don't need to be aware of
// blink:: objects.
class PepperCdmWrapperImpl : public PepperCdmWrapper {
public:
static scoped_ptr<PepperCdmWrapper> Create(blink::WebLocalFrame* frame,
const std::string& pluginType);
virtual ~PepperCdmWrapperImpl();
// Returns the ContentDecryptorDelegate* associated with this plugin.
virtual ContentDecryptorDelegate* GetCdmDelegate() OVERRIDE;
private:
typedef scoped_ptr<blink::WebHelperPlugin, WebHelperPluginDeleter>
ScopedHelperPlugin;
// Takes ownership of |helper_plugin| and |plugin_instance|.
PepperCdmWrapperImpl(
ScopedHelperPlugin helper_plugin,
const scoped_refptr<PepperPluginInstanceImpl>& plugin_instance);
ScopedHelperPlugin helper_plugin_;
scoped_refptr<PepperPluginInstanceImpl> plugin_instance_;
DISALLOW_COPY_AND_ASSIGN(PepperCdmWrapperImpl);
};
} // namespace content
#endif // CONTENT_RENDERER_MEDIA_CRYPTO_PEPPER_CDM_WRAPPER_IMPL_H_
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