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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef MOJO_PUBLIC_APPLICATION_APPLICATION_IMPL_H_ | |
| 6 #define MOJO_PUBLIC_APPLICATION_APPLICATION_IMPL_H_ | |
| 7 #include <vector> | |
| 8 | |
| 9 #include "mojo/public/cpp/application/application_connection.h" | |
| 10 #include "mojo/public/cpp/application/lib/service_connector.h" | |
| 11 #include "mojo/public/cpp/application/lib/service_registry.h" | |
| 12 #include "mojo/public/cpp/system/core.h" | |
| 13 #include "mojo/public/interfaces/application/application.mojom.h" | |
| 14 #include "mojo/public/interfaces/application/shell.mojom.h" | |
| 15 | |
| 16 namespace mojo { | |
| 17 | |
| 18 class ApplicationDelegate; | |
| 19 | |
| 20 // Utility class for communicating with the Shell, and providing Services | |
| 21 // to clients. | |
| 22 // | |
| 23 // To use define a class that implements your specific server api, e.g. FooImpl | |
| 24 // to implement a service named Foo. | |
| 25 // That class must subclass an InterfaceImpl specialization. | |
| 26 // | |
| 27 // If there is context that is to be shared amongst all instances, define a | |
| 28 // constructor with that class as its only argument, otherwise define an empty | |
| 29 // constructor. | |
| 30 // | |
| 31 // class FooImpl : public InterfaceImpl<Foo> { | |
| 32 // public: | |
| 33 // FooImpl(ApplicationContext* app_context) {} | |
| 34 // }; | |
| 35 // | |
| 36 // or | |
| 37 // | |
| 38 // class BarImpl : public InterfaceImpl<Bar> { | |
| 39 // public: | |
| 40 // // contexts will remain valid for the lifetime of BarImpl. | |
| 41 // BarImpl(ApplicationContext* app_context, BarContext* service_context) | |
| 42 // : app_context_(app_context), servicecontext_(context) {} | |
| 43 // | |
| 44 // Create an ApplicationImpl instance that collects any service implementations. | |
| 45 // | |
| 46 // ApplicationImpl app(service_provider_handle); | |
| 47 // app.AddService<FooImpl>(); | |
| 48 // | |
| 49 // BarContext context; | |
| 50 // app.AddService<BarImpl>(&context); | |
| 51 // | |
| 52 // | |
| 53 class ApplicationImpl : public InterfaceImpl<Application> { | |
| 54 public: | |
| 55 ApplicationImpl(ApplicationDelegate* delegate, | |
| 56 ScopedMessagePipeHandle shell_handle); | |
| 57 ApplicationImpl(ApplicationDelegate* delegate, MojoHandle shell_handle); | |
| 58 ~ApplicationImpl() override; | |
| 59 | |
| 60 Shell* shell() const { return shell_.get(); } | |
| 61 | |
| 62 // Returns any initial configuration arguments, passed by the Shell. | |
| 63 const std::vector<std::string>& args() const { return args_; } | |
| 64 bool HasArg(const std::string& arg) const; | |
| 65 | |
| 66 // Establishes a new connection to an application. Caller does not own. | |
| 67 ApplicationConnection* ConnectToApplication(const String& application_url); | |
| 68 | |
| 69 // Connect to application identified by |application_url| and connect to the | |
| 70 // service implementation of the interface identified by |Interface|. | |
| 71 template <typename Interface> | |
| 72 void ConnectToService(const std::string& application_url, | |
| 73 InterfacePtr<Interface>* ptr) { | |
| 74 ConnectToApplication(application_url)->ConnectToService(ptr); | |
| 75 } | |
| 76 | |
| 77 // Wait for the ShellPtr's Initialize message. | |
| 78 bool WaitForInitialize(); | |
| 79 | |
| 80 // Unbind the shell from this application and return its handle. | |
| 81 ScopedMessagePipeHandle UnbindShell(); | |
| 82 | |
| 83 // Application implementation. | |
| 84 void Initialize(Array<String> args) override; | |
| 85 | |
| 86 // Quits the main run loop for this application. | |
| 87 static void Terminate(); | |
| 88 | |
| 89 private: | |
| 90 class ShellPtrWatcher; | |
| 91 | |
| 92 void BindShell(ScopedMessagePipeHandle shell_handle); | |
| 93 void ClearConnections(); | |
| 94 void OnShellError() { | |
| 95 ClearConnections(); | |
| 96 Terminate(); | |
| 97 } | |
| 98 | |
| 99 // Application implementation. | |
| 100 void AcceptConnection(const String& requestor_url, | |
| 101 InterfaceRequest<ServiceProvider> services, | |
| 102 ServiceProviderPtr exposed_services) override; | |
| 103 | |
| 104 typedef std::vector<internal::ServiceRegistry*> ServiceRegistryList; | |
| 105 | |
| 106 bool initialized_; | |
| 107 ServiceRegistryList incoming_service_registries_; | |
| 108 ServiceRegistryList outgoing_service_registries_; | |
| 109 ApplicationDelegate* delegate_; | |
| 110 ShellPtr shell_; | |
| 111 ShellPtrWatcher* shell_watch_; | |
| 112 std::vector<std::string> args_; | |
| 113 | |
| 114 MOJO_DISALLOW_COPY_AND_ASSIGN(ApplicationImpl); | |
| 115 }; | |
| 116 | |
| 117 } // namespace mojo | |
| 118 | |
| 119 #endif // MOJO_PUBLIC_APPLICATION_APPLICATION_IMPL_H_ | |
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