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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef MOJO_PUBLIC_CPP_APPLICATION_LAZY_INTERFACE_PTR_H_ | 5 #ifndef MOJO_PUBLIC_CPP_APPLICATION_LAZY_INTERFACE_PTR_H_ |
| 6 #define MOJO_PUBLIC_CPP_APPLICATION_LAZY_INTERFACE_PTR_H_ | 6 #define MOJO_PUBLIC_CPP_APPLICATION_LAZY_INTERFACE_PTR_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 | 9 |
| 10 #include "mojo/public/cpp/application/connect.h" | 10 #include "mojo/public/cpp/application/connect.h" |
| 11 #include "mojo/public/interfaces/service_provider/service_provider.mojom.h" | 11 #include "mojo/public/interfaces/application/service_provider.mojom.h" |
| 12 | 12 |
| 13 namespace mojo { | 13 namespace mojo { |
| 14 | 14 |
| 15 template<typename Interface> | 15 template<typename Interface> |
| 16 class LazyInterfacePtr : InterfacePtr<Interface> { | 16 class LazyInterfacePtr : InterfacePtr<Interface> { |
| 17 public: | 17 public: |
| 18 LazyInterfacePtr(ServiceProvider* service_provider) | 18 LazyInterfacePtr(ServiceProvider* service_provider) |
| 19 : service_provider_(service_provider) { | 19 : service_provider_(service_provider) { |
| 20 } | 20 } |
| 21 | 21 |
| 22 Interface* get() const { | 22 Interface* get() const { |
| 23 if (!InterfacePtr<Interface>::get()) { | 23 if (!InterfacePtr<Interface>::get()) { |
| 24 mojo::ConnectToService<Interface>( | 24 mojo::ConnectToService<Interface>( |
| 25 service_provider_, | 25 service_provider_, |
| 26 const_cast<LazyInterfacePtr<Interface>*>(this)); | 26 const_cast<LazyInterfacePtr<Interface>*>(this)); |
| 27 } | 27 } |
| 28 return InterfacePtr<Interface>::get(); | 28 return InterfacePtr<Interface>::get(); |
| 29 } | 29 } |
| 30 Interface* operator->() const { return get(); } | 30 Interface* operator->() const { return get(); } |
| 31 Interface& operator*() const { return *get(); } | 31 Interface& operator*() const { return *get(); } |
| 32 | 32 |
| 33 private: | 33 private: |
| 34 ServiceProvider* service_provider_; | 34 ServiceProvider* service_provider_; |
| 35 }; | 35 }; |
| 36 | 36 |
| 37 } // namespace mojo | 37 } // namespace mojo |
| 38 | 38 |
| 39 #endif // MOJO_PUBLIC_CPP_APPLICATION_LAZY_INTERFACE_PTR_H_ | 39 #endif // MOJO_PUBLIC_CPP_APPLICATION_LAZY_INTERFACE_PTR_H_ |
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