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// Copyright 2013 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_PEPPER_HOST_RESOURCE_VAR_H_
#define CONTENT_RENDERER_PEPPER_HOST_RESOURCE_VAR_H_
#include <memory>
#include "base/macros.h"
#include "ipc/ipc_message.h"
#include "ppapi/c/pp_resource.h"
#include "ppapi/shared_impl/resource_var.h"
#include "ppapi/shared_impl/var.h"
namespace content {
// Represents a resource var, usable on the host side. Can either have a
// plugin-side resource or a pending resource host.
class HostResourceVar : public ppapi::ResourceVar {
public:
// Makes a null resource var.
HostResourceVar();
// Makes a resource var with an existing plugin-side resource.
explicit HostResourceVar(PP_Resource pp_resource);
// Makes a resource var with a pending resource host.
// The |pending_renderer_host_id| is a pending resource host ID in the
// renderer to attach from the plugin. Depending on the type of resource, this
// may be 0. The |creation_message| contains additional data needed to create
// the plugin-side resource. Its type depends on the type of resource.
HostResourceVar(int pending_renderer_host_id,
const IPC::Message& creation_message);
// ResourceVar override.
PP_Resource GetPPResource() const override;
int GetPendingRendererHostId() const override;
int GetPendingBrowserHostId() const override;
const IPC::Message* GetCreationMessage() const override;
bool IsPending() const override;
void set_pending_browser_host_id(int id) { pending_browser_host_id_ = id; }
protected:
~HostResourceVar() override;
private:
// Real resource ID in the plugin. 0 if one has not yet been created
// (indicating that there is a pending resource host).
PP_Resource pp_resource_;
// Pending resource host ID in the renderer.
int pending_renderer_host_id_;
// Pending resource host ID in the browser.
int pending_browser_host_id_;
// If the plugin-side resource has not yet been created, carries a message to
// create a resource of the specific type on the plugin side. Otherwise, NULL.
std::unique_ptr<IPC::Message> creation_message_;
DISALLOW_COPY_AND_ASSIGN(HostResourceVar);
};
} // namespace content
#endif // CONTENT_RENDERER_PEPPER_HOST_RESOURCE_VAR_H_
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