text: // Copyright (c) 2012 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef RLZ_MAC_LIB_RLZ_VALUE_STORE_MAC_H_
  #define RLZ_MAC_LIB_RLZ_VALUE_STORE_MAC_H_
  
  #include "rlz/lib/rlz_value_store.h"
  #include "base/compiler_specific.h"
  #include "base/memory/scoped_nsobject.h"
  
  @class NSDictionary;
  @class NSMutableDictionary;
  
  namespace rlz_lib {
  
  // An implementation of RlzValueStore for mac. It stores information in a
  // plist file in the user's Application Support folder.
  class RlzValueStoreMac : public RlzValueStore {
   public:
    virtual bool HasAccess(AccessType type) OVERRIDE;
  
    virtual bool WritePingTime(Product product, int64 time) OVERRIDE;
    virtual bool ReadPingTime(Product product, int64* time) OVERRIDE;
    virtual bool ClearPingTime(Product product) OVERRIDE;
  
    virtual bool WriteAccessPointRlz(AccessPoint access_point,
                                     const char* new_rlz) OVERRIDE;
    virtual bool ReadAccessPointRlz(AccessPoint access_point,
                                    char* rlz,
                                    size_t rlz_size) OVERRIDE;
    virtual bool ClearAccessPointRlz(AccessPoint access_point) OVERRIDE;
  
    virtual bool AddProductEvent(Product product, const char* event_rlz) OVERRIDE;
    virtual bool ReadProductEvents(Product product,
                                   std::vector<std::string>* events) OVERRIDE;
    virtual bool ClearProductEvent(Product product,
                                   const char* event_rlz) OVERRIDE;
    virtual bool ClearAllProductEvents(Product product) OVERRIDE;
  
    virtual bool AddStatefulEvent(Product product,
                                  const char* event_rlz) OVERRIDE;
    virtual bool IsStatefulEvent(Product product,
                                 const char* event_rlz) OVERRIDE;
    virtual bool ClearAllStatefulEvents(Product product) OVERRIDE;
  
    virtual void CollectGarbage() OVERRIDE;
  
   private:
    // |dict| is the dictionary that backs all data. plist_path is the name of the
    // plist file, used solely for implementing HasAccess().
    RlzValueStoreMac(NSMutableDictionary* dict, NSString* plist_path);
    virtual ~RlzValueStoreMac();
    friend class ScopedRlzValueStoreLock;
  
    // Returns the backing dictionary that should be written to disk.
    NSDictionary* dictionary();
  
    // Returns the dictionary to which all data should be written. Usually, this
    // is just |dictionary()|, but if supplementary branding is used, it's a
    // subdirectory at key "brand_<supplementary branding code>".
    // Note that windows stores data at
    //    rlz/name (e.g. "pingtime")/supplementalbranding/productcode
    // Mac on the other hand does
    //    supplementalbranding/productcode/pingtime.
    NSMutableDictionary* WorkingDict();
  
    // Returns the subdirectory of |WorkingDict()| used to store data for
    // product p.
    NSMutableDictionary* ProductDict(Product p);
  
    scoped_nsobject<NSMutableDictionary> dict_;
    scoped_nsobject<NSString> plist_path_;
  
    DISALLOW_COPY_AND_ASSIGN(RlzValueStoreMac);
  };
  
  }  // namespace rlz_lib
  
  #endif  // RLZ_MAC_LIB_RLZ_VALUE_STORE_MAC_H_
  