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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 CHROME_FRAME_POLICY_SETTINGS_H_ | |
6 #define CHROME_FRAME_POLICY_SETTINGS_H_ | |
7 | |
8 #include <string> | |
9 #include <vector> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/command_line.h" | |
13 #include "base/memory/singleton.h" | |
14 | |
15 // A simple class that reads and caches policy settings for Chrome Frame. | |
16 // TODO(tommi): Support refreshing when new settings are pushed. | |
17 // TODO(tommi): Use Chrome's classes for this (and the notification service). | |
18 class PolicySettings { | |
19 public: | |
20 enum RendererForUrl { | |
21 RENDERER_NOT_SPECIFIED = -1, | |
22 RENDER_IN_HOST, | |
23 RENDER_IN_CHROME_FRAME, | |
24 }; | |
25 | |
26 enum SkipMetadataCheck { | |
27 SKIP_METADATA_CHECK_NOT_SPECIFIED = -1, | |
28 SKIP_METADATA_CHECK_NO, | |
29 SKIP_METADATA_CHECK_YES, | |
30 }; | |
31 | |
32 static PolicySettings* GetInstance(); | |
33 | |
34 RendererForUrl default_renderer() const { | |
35 return default_renderer_; | |
36 } | |
37 | |
38 SkipMetadataCheck skip_metadata_check() const { | |
39 return skip_metadata_check_; | |
40 } | |
41 | |
42 RendererForUrl GetRendererForUrl(const wchar_t* url); | |
43 | |
44 RendererForUrl GetRendererForContentType(const wchar_t* content_type); | |
45 | |
46 // Returns the policy-configured Chrome app locale, or an empty string if none | |
47 // is configured. | |
48 const std::wstring& ApplicationLocale() const { | |
49 return application_locale_; | |
50 } | |
51 | |
52 // Contains additional parameters that can optionally be configured for the | |
53 // current user via the policy settings. The program part of this command | |
54 // line object must not be used when appending to another command line. | |
55 const CommandLine& AdditionalLaunchParameters() const; | |
56 | |
57 // Returns true if the Chrome Frame turndown prompt should be suppressed. | |
58 bool suppress_turndown_prompt() const { | |
59 return suppress_turndown_prompt_; | |
60 } | |
61 | |
62 // Helper functions for reading settings from the registry | |
63 static void ReadUrlSettings(RendererForUrl* default_renderer, | |
64 std::vector<std::wstring>* renderer_exclusion_list); | |
65 static void ReadMetadataCheckSettings(SkipMetadataCheck* skip_metadata_check); | |
66 static void ReadContentTypeSetting( | |
67 std::vector<std::wstring>* content_type_list); | |
68 static void ReadStringSetting(const char* value_name, std::wstring* value); | |
69 static void ReadBoolSetting(const char* value_name, bool* value); | |
70 | |
71 protected: | |
72 PolicySettings() | |
73 : default_renderer_(RENDERER_NOT_SPECIFIED), | |
74 skip_metadata_check_(SKIP_METADATA_CHECK_NOT_SPECIFIED), | |
75 additional_launch_parameters_(CommandLine::NO_PROGRAM), | |
76 suppress_turndown_prompt_(false) { | |
77 RefreshFromRegistry(); | |
78 } | |
79 | |
80 ~PolicySettings() { | |
81 } | |
82 | |
83 // Protected for now since the class is not thread safe. | |
84 void RefreshFromRegistry(); | |
85 | |
86 protected: | |
87 RendererForUrl default_renderer_; | |
88 SkipMetadataCheck skip_metadata_check_; | |
89 std::vector<std::wstring> renderer_exclusion_list_; | |
90 std::vector<std::wstring> content_type_list_; | |
91 std::wstring application_locale_; | |
92 CommandLine additional_launch_parameters_; | |
93 bool suppress_turndown_prompt_; | |
94 | |
95 private: | |
96 // This ensures no construction is possible outside of the class itself. | |
97 friend struct DefaultSingletonTraits<PolicySettings>; | |
98 DISALLOW_COPY_AND_ASSIGN(PolicySettings); | |
99 }; | |
100 | |
101 #endif // CHROME_FRAME_POLICY_SETTINGS_H_ | |
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