Home | History | Annotate | Download | only in shell 
      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_SHELL_DYNAMIC_SERVICE_RUNNER_H_
      6 #define MOJO_SHELL_DYNAMIC_SERVICE_RUNNER_H_
      7 
      8 #include "base/callback_forward.h"
      9 #include "base/macros.h"
     10 #include "base/memory/scoped_ptr.h"
     11 #include "mojo/public/cpp/system/core.h"
     12 
     13 namespace base {
     14 class FilePath;
     15 }
     16 
     17 namespace mojo {
     18 namespace shell {
     19 
     20 class Context;
     21 
     22 // Abstraction for loading a service (from the file system) and running it (on
     23 // another thread or in a separate process).
     24 class DynamicServiceRunner {
     25  public:
     26   virtual ~DynamicServiceRunner() {}
     27 
     28   // Takes ownership of the file at |app_path|. Loads the app in that file and
     29   // runs it on some other thread/process. |app_completed_callback| is posted
     30   // (to the thread on which |Start()| was called) after |MojoMain()| completes.
     31   virtual void Start(const base::FilePath& app_path,
     32                      ScopedMessagePipeHandle service_handle,
     33                      const base::Closure& app_completed_callback) = 0;
     34 };
     35 
     36 class DynamicServiceRunnerFactory {
     37  public:
     38   virtual ~DynamicServiceRunnerFactory() {}
     39   virtual scoped_ptr<DynamicServiceRunner> Create(Context* context) = 0;
     40 };
     41 
     42 // A generic factory.
     43 template <class DynamicServiceRunnerImpl>
     44 class DynamicServiceRunnerFactoryImpl : public DynamicServiceRunnerFactory {
     45  public:
     46   DynamicServiceRunnerFactoryImpl() {}
     47   virtual ~DynamicServiceRunnerFactoryImpl() {}
     48   virtual scoped_ptr<DynamicServiceRunner> Create(Context* context) OVERRIDE {
     49     return scoped_ptr<DynamicServiceRunner>(
     50         new DynamicServiceRunnerImpl(context));
     51   }
     52 };
     53 
     54 }  // namespace shell
     55 }  // namespace mojo
     56 
     57 #endif  // MOJO_SHELL_DYNAMIC_SERVICE_RUNNER_H_
     58