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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 SERVICES_SHELL_PUBLIC_CPP_APPLICATION_RUNNER_H_ | |
| 6 #define SERVICES_SHELL_PUBLIC_CPP_APPLICATION_RUNNER_H_ | |
| 7 | |
| 8 #include <memory> | |
| 9 | |
| 10 #include "base/message_loop/message_loop.h" | |
| 11 #include "mojo/public/cpp/system/core.h" | |
| 12 | |
| 13 namespace shell { | |
| 14 | |
| 15 class Service; | |
| 16 class ServiceContext; | |
| 17 | |
| 18 // A utility for running a chromium based mojo Application. The typical use | |
| 19 // case is to use when writing your MojoMain: | |
| 20 // | |
| 21 // MojoResult MojoMain(MojoHandle shell_handle) { | |
| 22 // shell::ApplicationRunner runner(new MyDelegate()); | |
| 23 // return runner.Run(shell_handle); | |
| 24 // } | |
| 25 // | |
| 26 // ApplicationRunner takes care of chromium environment initialization and | |
| 27 // shutdown, and starting a MessageLoop from which your application can run and | |
| 28 // ultimately Quit(). | |
| 29 class ApplicationRunner { | |
| 30 public: | |
| 31 // Takes ownership of |client|. | |
| 32 explicit ApplicationRunner(Service* client); | |
| 33 ~ApplicationRunner(); | |
| 34 | |
| 35 static void InitBaseCommandLine(); | |
| 36 | |
| 37 void set_message_loop_type(base::MessageLoop::Type type); | |
| 38 | |
| 39 // Once the various parameters have been set above, use Run to initialize an | |
| 40 // ServiceContext wired to the provided delegate, and run a MessageLoop until | |
| 41 // the application exits. | |
| 42 // | |
| 43 // Iff |init_base| is true, the runner will perform some initialization of | |
| 44 // base globals (e.g. CommandLine and AtExitManager) before starting the | |
| 45 // application. | |
| 46 MojoResult Run(MojoHandle shell_handle, bool init_base); | |
| 47 | |
| 48 // Calls Run above with |init_base| set to |true|. | |
| 49 MojoResult Run(MojoHandle shell_handle); | |
| 50 | |
| 51 // Allows the caller to shut down the connection with the Service Manager. | |
| 52 // After the Service Manager notices the pipe has closed, it will no longer | |
| 53 // track an instance of this service, though this service may continue to run | |
| 54 // and handle requests from others. | |
| 55 void DestroyServiceContext(); | |
| 56 | |
| 57 // Allows the caller to explicitly quit the application. Must be called from | |
| 58 // the thread which created the ApplicationRunner. | |
| 59 void Quit(); | |
| 60 | |
| 61 private: | |
| 62 std::unique_ptr<ServiceContext> context_; | |
| 63 std::unique_ptr<Service> client_; | |
| 64 | |
| 65 // MessageLoop type. TYPE_CUSTOM is default (MessagePumpMojo will be used as | |
| 66 // the underlying message pump). | |
| 67 base::MessageLoop::Type message_loop_type_; | |
| 68 // Whether Run() has been called. | |
| 69 bool has_run_; | |
| 70 | |
| 71 DISALLOW_COPY_AND_ASSIGN(ApplicationRunner); | |
| 72 }; | |
| 73 | |
| 74 } // namespace shell | |
| 75 | |
| 76 #endif // SERVICES_SHELL_PUBLIC_CPP_APPLICATION_RUNNER_H_ | |
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