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Side by Side Diff: chrome/browser/content_settings/content_settings_provider.h

Issue 579673003: Move content_settings_observer.h, content_settings_provider.h, content_settings_rule.* to the compo… (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: last comment Created 6 years, 3 months ago
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1 // Copyright (c) 2011 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 // Interface for objects providing content setting rules.
6
7 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PROVIDER_H_
8 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PROVIDER_H_
9
10 #define NO_RESOURCE_IDENTIFIER std::string()
11
12 #include <string>
13 #include <vector>
14
15 #include "base/values.h"
16 #include "components/content_settings/core/common/content_settings_types.h"
17
18 class ContentSettingsPattern;
19
20 namespace content_settings {
21
22 struct Rule;
23 class RuleIterator;
24
25 typedef std::string ResourceIdentifier;
26
27 class ProviderInterface {
28 public:
29 virtual ~ProviderInterface() {}
30
31 // Returns a |RuleIterator| over the content setting rules stored by this
32 // provider. If |incognito| is true, the iterator returns only the content
33 // settings which are applicable to the incognito mode and differ from the
34 // normal mode. Otherwise, it returns the content settings for the normal
35 // mode. The caller takes the ownership of the returned |RuleIterator|. It is
36 // not allowed to call other |ProviderInterface| functions (including
37 // |GetRuleIterator|) for the same provider until the |RuleIterator| is
38 // destroyed.
39 virtual RuleIterator* GetRuleIterator(
40 ContentSettingsType content_type,
41 const ResourceIdentifier& resource_identifier,
42 bool incognito) const = 0;
43
44 // Asks the provider to set the website setting for a particular
45 // |primary_pattern|, |secondary_pattern|, |content_type| tuple. If the
46 // provider accepts the setting it returns true and takes the ownership of the
47 // |value|. Otherwise false is returned and the ownership of the |value| stays
48 // with the caller.
49 //
50 // This should only be called on the UI thread, and not after
51 // ShutdownOnUIThread has been called.
52 virtual bool SetWebsiteSetting(
53 const ContentSettingsPattern& primary_pattern,
54 const ContentSettingsPattern& secondary_pattern,
55 ContentSettingsType content_type,
56 const ResourceIdentifier& resource_identifier,
57 base::Value* value) = 0;
58
59 // Resets all content settings for the given |content_type| and empty resource
60 // identifier to CONTENT_SETTING_DEFAULT.
61 //
62 // This should only be called on the UI thread, and not after
63 // ShutdownOnUIThread has been called.
64 virtual void ClearAllContentSettingsRules(
65 ContentSettingsType content_type) = 0;
66
67 // Detaches the Provider from all Profile-related objects like PrefService.
68 // This methods needs to be called before destroying the Profile.
69 // Afterwards, none of the methods above that should only be called on the UI
70 // thread should be called anymore.
71 virtual void ShutdownOnUIThread() = 0;
72 };
73
74 } // namespace content_settings
75
76 #endif // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PROVIDER_H_
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