1// Copyright 2013 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_CONTENT_SETTINGS_CONTENT_SETTINGS_USAGES_STATE_H_
6#define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_USAGES_STATE_H_
7
8#include <map>
9#include <set>
10
11#include "components/content_settings/core/common/content_settings.h"
12#include "components/content_settings/core/common/content_settings_types.h"
13#include "url/gurl.h"
14
15class Profile;
16
17namespace content {
18struct LoadCommittedDetails;
19}
20
21// This class manages a content setting state per tab for a given
22// |ContentSettingsType|, and provides information and presentation data about
23// the content setting usage.
24class ContentSettingsUsagesState {
25 public:
26  ContentSettingsUsagesState(Profile* profile, ContentSettingsType type);
27  virtual ~ContentSettingsUsagesState();
28
29  typedef std::map<GURL, ContentSetting> StateMap;
30  const StateMap& state_map() const {
31    return state_map_;
32  }
33
34  // Sets the state for |requesting_origin|.
35  void OnPermissionSet(const GURL& requesting_origin, bool allowed);
36
37  // Delegated by WebContents to indicate a navigation has happened and we
38  // may need to clear our settings.
39  void DidNavigate(const content::LoadCommittedDetails& details);
40
41  void ClearStateMap();
42
43  enum TabState {
44    TABSTATE_NONE = 0,
45    // There's at least one entry with non-default setting.
46    TABSTATE_HAS_EXCEPTION = 1 << 1,
47    // There's at least one entry with a non-ASK setting.
48    TABSTATE_HAS_ANY_ICON = 1 << 2,
49    // There's at least one entry with ALLOWED setting.
50    TABSTATE_HAS_ANY_ALLOWED = 1 << 3,
51    // There's at least one entry that doesn't match the saved setting.
52    TABSTATE_HAS_CHANGED = 1 << 4,
53  };
54
55  // Maps ContentSetting to a set of hosts formatted for presentation.
56  typedef std::map<ContentSetting, std::set<std::string> >
57      FormattedHostsPerState;
58
59  // Returns an (optional) |formatted_hosts_per_state| and a mask of TabState.
60  void GetDetailedInfo(FormattedHostsPerState* formatted_hosts_per_state,
61                       unsigned int* tab_state_flags) const;
62
63 private:
64  std::string GURLToFormattedHost(const GURL& url) const;
65
66  Profile* profile_;
67  ContentSettingsType type_;
68  StateMap state_map_;
69  GURL embedder_url_;
70
71  DISALLOW_COPY_AND_ASSIGN(ContentSettingsUsagesState);
72};
73
74#endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_USAGES_STATE_H_
75