1 // Copyright (c) 2012 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.
5 #ifndef CHROME_BROWSER_EXTENSIONS_API_MESSAGING_NATIVE_PROCESS_LAUNCHER_H_
6 #define CHROME_BROWSER_EXTENSIONS_API_MESSAGING_NATIVE_PROCESS_LAUNCHER_H_
8 #include "base/callback_forward.h"
9 #include "base/memory/scoped_ptr.h"
10 #include "base/platform_file.h"
11 #include "base/process/process.h"
12 #include "ui/gfx/native_widget_types.h"
21 namespace extensions {
23 class NativeProcessLauncher {
30 RESULT_FAILED_TO_START,
33 // Callback that's called after the process has been launched. |result| is set
34 // to false in case of a failure. Handler must take ownership of the IO
36 typedef base::Callback<void (LaunchResult result,
37 base::ProcessHandle process_handle,
38 base::PlatformFile read_file,
39 base::PlatformFile write_file)> LaunchedCallback;
41 static scoped_ptr<NativeProcessLauncher> CreateDefault(
42 gfx::NativeView native_view);
44 NativeProcessLauncher() {}
45 virtual ~NativeProcessLauncher() {}
47 // Finds native messaging host with the specified name and launches it
48 // asynchronously. Also checks that the specified |origin| is permitted to
49 // access the host. |callback| is called after the process has been started.
50 // If the launcher is destroyed before the callback is called then the call is
51 // canceled and the process is stopped if it has been started already (by
53 virtual void Launch(const GURL& origin,
54 const std::string& native_host_name,
55 LaunchedCallback callback) const = 0;
58 // The following two methods are platform specific and are implemented in
59 // platform-specific .cc files.
61 // Finds manifest file for the native messaging host |native_host_name|.
62 static base::FilePath FindManifest(const std::string& native_host_name,
63 std::string* error_message);
65 // Launches native messaging process.
66 static bool LaunchNativeProcess(const CommandLine& command_line,
67 base::ProcessHandle* process_handle,
68 base::PlatformFile* read_file,
69 base::PlatformFile* write_file);
72 DISALLOW_COPY_AND_ASSIGN(NativeProcessLauncher);
75 } // namespace extensions
77 #endif // CHROME_BROWSER_EXTENSIONS_API_MESSAGING_NATIVE_PROCESS_LAUNCHER_H_