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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.
#if defined(ENABLE_PEPPER_CDMS)
#include "content/renderer/media/crypto/pepper_cdm_wrapper_impl.h"
#include "content/renderer/pepper/pepper_plugin_instance_impl.h"
#include "content/renderer/pepper/pepper_webplugin_impl.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/web/WebDocument.h"
#include "third_party/WebKit/public/web/WebFrame.h"
#include "third_party/WebKit/public/web/WebHelperPlugin.h"
#include "third_party/WebKit/public/web/WebPlugin.h"
#include "third_party/WebKit/public/web/WebView.h"
namespace content {
void WebHelperPluginDeleter::operator()(blink::WebHelperPlugin* plugin) const {
plugin->destroy();
}
scoped_ptr<PepperCdmWrapper> PepperCdmWrapperImpl::Create(
blink::WebLocalFrame* frame,
const std::string& pluginType) {
DCHECK(frame);
ScopedHelperPlugin helper_plugin(blink::WebHelperPlugin::create(
blink::WebString::fromUTF8(pluginType), frame));
if (!helper_plugin)
return scoped_ptr<PepperCdmWrapper>();
blink::WebPlugin* plugin = helper_plugin->getPlugin();
DCHECK(!plugin->isPlaceholder()); // Prevented by Blink.
// Only Pepper plugins are supported, so it must ultimately be a ppapi object.
PepperWebPluginImpl* ppapi_plugin = static_cast<PepperWebPluginImpl*>(plugin);
scoped_refptr<PepperPluginInstanceImpl> plugin_instance =
ppapi_plugin->instance();
if (!plugin_instance)
return scoped_ptr<PepperCdmWrapper>();
if (!plugin_instance->GetContentDecryptorDelegate())
return scoped_ptr<PepperCdmWrapper>();
return scoped_ptr<PepperCdmWrapper>(
new PepperCdmWrapperImpl(helper_plugin.Pass(), plugin_instance));
}
PepperCdmWrapperImpl::PepperCdmWrapperImpl(
ScopedHelperPlugin helper_plugin,
const scoped_refptr<PepperPluginInstanceImpl>& plugin_instance)
: helper_plugin_(helper_plugin.Pass()),
plugin_instance_(plugin_instance) {
DCHECK(helper_plugin_);
DCHECK(plugin_instance_);
// Plugin must be a CDM.
DCHECK(plugin_instance_->GetContentDecryptorDelegate());
}
PepperCdmWrapperImpl::~PepperCdmWrapperImpl() {
// Destroy the nested objects in reverse order.
plugin_instance_ = NULL;
helper_plugin_.reset();
}
ContentDecryptorDelegate* PepperCdmWrapperImpl::GetCdmDelegate() {
return plugin_instance_->GetContentDecryptorDelegate();
}
} // namespace content
#endif // defined(ENABLE_PEPPER_CDMS)
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