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      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 "chrome/common/content_settings.h"
     12 #include "chrome/common/content_settings_types.h"
     13 #include "url/gurl.h"
     14 
     15 class Profile;
     16 
     17 namespace content {
     18 struct 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.
     24 class 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