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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef PPAPI_CONTENT_RENDERER_PEPPER_HOST_RESOURCE_VAR_H_ |
| 6 #define PPAPI_CONTENT_RENDERER_PEPPER_HOST_RESOURCE_VAR_H_ |
| 7 |
| 8 #include "base/memory/scoped_ptr.h" |
| 9 #include "ipc/ipc_message.h" |
| 10 #include "ppapi/c/pp_resource.h" |
| 11 #include "ppapi/shared_impl/resource_var.h" |
| 12 #include "ppapi/shared_impl/var.h" |
| 13 |
| 14 namespace content { |
| 15 |
| 16 // Represents a resource var, usable on the host side. Can either have a |
| 17 // plugin-side resource or a pending resource host. |
| 18 class HostResourceVar : public ppapi::ResourceVar { |
| 19 public: |
| 20 // Makes a null resource var. |
| 21 HostResourceVar(); |
| 22 |
| 23 // Makes a resource var with an existing plugin-side resource. |
| 24 explicit HostResourceVar(PP_Resource pp_resource); |
| 25 |
| 26 // Makes a resource var with a pending resource host. |
| 27 // The |creation_message| contains data needed to create the plugin-side |
| 28 // resource. Its type depends on the type of resource. |
| 29 explicit HostResourceVar(const IPC::Message& creation_message); |
| 30 |
| 31 // ResourceVar override. |
| 32 virtual PP_Resource GetPPResource() const OVERRIDE; |
| 33 virtual const IPC::Message* GetCreationMessage() const OVERRIDE; |
| 34 virtual bool IsPending() const OVERRIDE; |
| 35 |
| 36 protected: |
| 37 virtual ~HostResourceVar(); |
| 38 |
| 39 private: |
| 40 // Real resource ID in the plugin. 0 if one has not yet been created |
| 41 // (indicating that there is a pending host resource). |
| 42 PP_Resource pp_resource_; |
| 43 |
| 44 // If the plugin-side resource has not yet been created, carries a message to |
| 45 // create a resource of the specific type on the plugin side. Otherwise, NULL. |
| 46 scoped_ptr<IPC::Message> creation_message_; |
| 47 |
| 48 DISALLOW_COPY_AND_ASSIGN(HostResourceVar); |
| 49 }; |
| 50 |
| 51 } // namespace content |
| 52 |
| 53 #endif |
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