command_line_pref_store.h revision 513209b27ff55e2841eac0e4120199c23acce758 
1// Copyright (c) 2010 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 CHROME_BROWSER_PREFS_COMMAND_LINE_PREF_STORE_H_
6#define CHROME_BROWSER_PREFS_COMMAND_LINE_PREF_STORE_H_
7#pragma once
8
9#include "base/basictypes.h"
10#include "base/command_line.h"
11#include "base/scoped_ptr.h"
12#include "chrome/common/pref_store.h"
13
14class DictionaryValue;
15
16// This PrefStore keeps track of preferences set by command-line switches,
17// such as proxy settings.
18class CommandLinePrefStore : public PrefStore {
19 public:
20  explicit CommandLinePrefStore(const CommandLine* command_line);
21  virtual ~CommandLinePrefStore();
22
23  // PrefStore methods:
24  virtual PrefReadError ReadPrefs();
25  virtual DictionaryValue* prefs() const { return prefs_.get(); }
26
27 protected:
28  // Logs a message and returns false if the proxy switches are
29  // self-contradictory. Protected so it can be used in unit testing.
30  bool ValidateProxySwitches();
31
32 private:
33  struct StringSwitchToPreferenceMapEntry {
34    const char* switch_name;
35    const char* preference_path;
36  };
37
38  // |set_value| indicates what the preference should be set to if the switch
39  // is present.
40  struct BooleanSwitchToPreferenceMapEntry {
41    const char* switch_name;
42    const char* preference_path;
43    bool set_value;
44  };
45  static const BooleanSwitchToPreferenceMapEntry boolean_switch_map_[];
46
47  // Using the string and boolean maps, apply command-line switches to their
48  // corresponding preferences in this pref store.
49  void ApplySimpleSwitches();
50
51  // Weak reference.
52  const CommandLine* command_line_;
53
54  scoped_ptr<DictionaryValue> prefs_;
55
56  static const StringSwitchToPreferenceMapEntry string_switch_map_[];
57
58  DISALLOW_COPY_AND_ASSIGN(CommandLinePrefStore);
59};
60
61#endif  // CHROME_BROWSER_PREFS_COMMAND_LINE_PREF_STORE_H_
62