win8/delegate_execute/delegate_execute_operation.h

   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/process/process.h"
  14 #include "base/strings/string16.h"
  15
  16 namespace base {
  17 class CommandLine;
  18 }
  19
  20 namespace delegate_execute {
  21
  22 // Parses a portion of the DelegateExecute handler's command line to determine
  23 // the desired operation. The operation type is decided by looking at the
  24 // command line. The operations are:
  25 // DELEGATE_EXECUTE:
  26 //   When the delegate_execute.exe is invoked by windows when a chrome
  27 //   activation via the shell, possibly using ShellExecute. Control must
  28 //   be given to ATLs WinMain.
  29 // RELAUNCH_CHROME:
  30 //   When the delegate_execute.exe is launched by chrome, when chrome needs
  31 //   to re-launch itself. The required command line parameters are:
  32 //     --relaunch-shortcut=<PathToShortcut>
  33 //     --wait-for-mutex=<MutexNamePid>
  34 //   The PathToShortcut must be the fully qualified file name to the chrome
  35 //   shortcut that has the appId and other 'metro ready' parameters.
  36 //   The MutexNamePid is a mutex name that also encodes the process id and
  37 //   must follow the format <A>.<B>.<pid> where A and B are arbitray strings
  38 //   (usually chrome.relaunch) and pid is the process id of chrome.
  39 class DelegateExecuteOperation {
  40  public:
  41   enum OperationType {
  42     DELEGATE_EXECUTE,
  43     RELAUNCH_CHROME,
  44   };
  45
  46   DelegateExecuteOperation();
  47   ~DelegateExecuteOperation();
  48
  49   bool Init(const base::CommandLine* cmd_line);
  50
  51   OperationType operation_type() const {
  52     return operation_type_;
  53   }
  54
  55   const base::string16& relaunch_flags() const {
  56     return relaunch_flags_;
  57   }
  58
  59   const base::string16& mutex() const {
  60     return mutex_;
  61   }
  62
  63   // Returns the parent process.
  64   base::Process GetParent() const;
  65
  66   const base::FilePath& shortcut() const {
  67     return relaunch_shortcut_;
  68   }
  69
  70  private:
  71   OperationType operation_type_;
  72   base::string16 relaunch_flags_;
  73   base::FilePath relaunch_shortcut_;
  74   base::string16 mutex_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(DelegateExecuteOperation);
  77 };
  78
  79 }  // namespace delegate_execute
  80
  81 #endif  // WIN8_DELEGATE_EXECUTE_DELEGATE_EXECUTE_OPERATION_H_