delegate_execute_operation.h revision 7d4cd473f85ac64c3747c96c277f9e506a0d2246 
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.
4
5#ifndef WIN8_DELEGATE_EXECUTE_DELEGATE_EXECUTE_OPERATION_H_
6#define WIN8_DELEGATE_EXECUTE_DELEGATE_EXECUTE_OPERATION_H_
7
8#include <windows.h>
9#include <atldef.h>
10
11#include "base/basictypes.h"
12#include "base/files/file_path.h"
13#include "base/strings/string16.h"
14
15class CommandLine;
16
17namespace delegate_execute {
18
19// Parses a portion of the DelegateExecute handler's command line to determine
20// the desired operation. The operation type is decided by looking at the
21// command line. The operations are:
22// DELEGATE_EXECUTE:
23//   When the delegate_execute.exe is invoked by windows when a chrome
24//   activation via the shell, possibly using ShellExecute. Control must
25//   be given to ATLs WinMain.
26// RELAUNCH_CHROME:
27//   When the delegate_execute.exe is launched by chrome, when chrome needs
28//   to re-launch itself. The required command line parameters are:
29//     --relaunch-shortcut=<PathToShortcut>
30//     --wait-for-mutex=<MutexNamePid>
31//   The PathToShortcut must be the fully qualified file name to the chrome
32//   shortcut that has the appId and other 'metro ready' parameters.
33//   The MutexNamePid is a mutex name that also encodes the process id and
34//   must follow the format <A>.<B>.<pid> where A and B are arbitray strings
35//   (usually chrome.relaunch) and pid is the process id of chrome.
36class DelegateExecuteOperation {
37 public:
38  enum OperationType {
39    DELEGATE_EXECUTE,
40    RELAUNCH_CHROME,
41  };
42
43  DelegateExecuteOperation();
44  ~DelegateExecuteOperation();
45
46  bool Init(const CommandLine* cmd_line);
47
48  OperationType operation_type() const {
49    return operation_type_;
50  }
51
52  const string16& relaunch_flags() const {
53    return relaunch_flags_;
54  }
55
56  const string16& mutex() const {
57    return mutex_;
58  }
59
60  // Returns the process id of the parent or 0 on failure.
61  DWORD GetParentPid() const;
62
63  const base::FilePath& shortcut() const {
64    return relaunch_shortcut_;
65  }
66
67 private:
68  OperationType operation_type_;
69  string16 relaunch_flags_;
70  base::FilePath relaunch_shortcut_;
71  string16 mutex_;
72
73  DISALLOW_COPY_AND_ASSIGN(DelegateExecuteOperation);
74};
75
76}  // namespace delegate_execute
77
78#endif  // WIN8_DELEGATE_EXECUTE_DELEGATE_EXECUTE_OPERATION_H_
79