| // Copyright 2017 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_COMMON_POSSIBLY_ASSOCIATED_INTERFACE_PTR_INFO_H_ |
| #define CONTENT_COMMON_POSSIBLY_ASSOCIATED_INTERFACE_PTR_INFO_H_ |
| |
| #include "base/macros.h" |
| #include "mojo/public/cpp/bindings/associated_interface_ptr_info.h" |
| #include "mojo/public/cpp/bindings/interface_ptr_info.h" |
| |
| namespace content { |
| |
| // PossiblyAssociatedInterfacePtrInfo<T> contains mojo::InterfacePtrInfo<T> or |
| // mojo::AssociatedInterfacePtrInfo<T>, but not both. Mojo-related functions in |
| // mojo::InterfacePtrInfo<T> and mojo::AssociatedInterfacePtrInfo<T> are not |
| // accessible, but a user can Bind this object into a |
| // PossiblyAssociatedInterfacePtr. |
| template <typename T> |
| class PossiblyAssociatedInterfacePtrInfo final { |
| public: |
| PossiblyAssociatedInterfacePtrInfo() {} |
| PossiblyAssociatedInterfacePtrInfo(std::nullptr_t) {} |
| PossiblyAssociatedInterfacePtrInfo( |
| mojo::InterfacePtrInfo<T> independent_ptr_info) |
| : independent_ptr_info_(std::move(independent_ptr_info)) {} |
| PossiblyAssociatedInterfacePtrInfo( |
| mojo::AssociatedInterfacePtrInfo<T> associated_ptr_info) |
| : associated_ptr_info_(std::move(associated_ptr_info)) {} |
| |
| PossiblyAssociatedInterfacePtrInfo( |
| PossiblyAssociatedInterfacePtrInfo&& other) = default; |
| ~PossiblyAssociatedInterfacePtrInfo() {} |
| |
| PossiblyAssociatedInterfacePtrInfo& operator=( |
| PossiblyAssociatedInterfacePtrInfo&& other) = default; |
| |
| mojo::InterfacePtrInfo<T> TakeIndependentPtrInfo() { |
| return std::move(independent_ptr_info_); |
| } |
| |
| mojo::AssociatedInterfacePtrInfo<T> TakeAssociatedPtrInfo() { |
| return std::move(associated_ptr_info_); |
| } |
| |
| explicit operator bool() const { |
| return independent_ptr_info_.is_valid() || associated_ptr_info_.is_valid(); |
| } |
| |
| private: |
| mojo::InterfacePtrInfo<T> independent_ptr_info_; |
| mojo::AssociatedInterfacePtrInfo<T> associated_ptr_info_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PossiblyAssociatedInterfacePtrInfo); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_COMMON_POSSIBLY_ASSOCIATED_INTERFACE_PTR_INFO_H_ |