llmutelist.h

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#ifndef LL_MUTELIST_H
#define LL_MUTELIST_H

#include "llstring.h"
#include "lluuid.h"

class LLViewerObject;
class LLMessageSystem;
class LLMuteListObserver;

// An entry in the mute list.
class LLMute
{
public:
        // Legacy mutes are BY_NAME and have null UUID.
        enum EType { BY_NAME = 0, AGENT = 1, OBJECT = 2, GROUP = 3, COUNT = 4 };
        
        // Bits in the mute flags.  For backwards compatibility (since any mute list entries that were created before the flags existed
        // will have a flags field of 0), some of the flags are "inverted".
        // Note that it's possible, through flags, to completely disable an entry in the mute list.  The code should detect this case
        // and remove the mute list entry instead.
        enum 
        {
                flagTextChat            = 0x00000001,           // If set, don't mute user's text chat
                flagVoiceChat           = 0x00000002,           // If set, don't mute user's voice chat
                flagParticles           = 0x00000004,           // If set, don't mute user's particles
                flagObjectSounds        = 0x00000008,           // If set, mute user's object sounds
                
                flagAll                         = 0x0000000F            // Mask of all currently defined flags
        };
        
        LLMute(const LLUUID& id, const LLString& name = LLString(), EType type = BY_NAME, U32 flags = 0) 
        : mID(id), mName(name), mType(type),mFlags(flags) { }

        // Returns name + suffix based on type
        // For example:  "James Tester (resident)"
        LLString getDisplayName() const;
        
        // Converts a UI name into just the agent or object name
        // For example: "James Tester (resident)" sets the name to "James Tester"
        // and the type to AGENT.
        void setFromDisplayName(const LLString& display_name);
        
public:
        LLUUID          mID;    // agent or object id
        LLString        mName;  // agent or object name
        EType           mType;  // needed for UI display of existing mutes
        U32                     mFlags; // flags pertaining to this mute entry
};

class LLMuteList
{
public:
        LLMuteList();
        ~LLMuteList();

        void addObserver(LLMuteListObserver* observer);
        void removeObserver(LLMuteListObserver* observer);

        // Add either a normal or a BY_NAME mute, for any or all properties.
        BOOL add(const LLMute& mute, U32 flags = 0);

        // Remove both normal and legacy mutes, for any or all properties.
        BOOL remove(const LLMute& mute, U32 flags = 0);
        
        // Name is required to test against legacy text-only mutes.
        BOOL isMuted(const LLUUID& id, const LLString& name = LLString::null, U32 flags = 0) const;
        
        // Alternate (convenience) form for places we don't need to pass the name, but do need flags
        BOOL isMuted(const LLUUID& id, U32 flags) const { return isMuted(id, LLString::null, flags); };
        
        BOOL isLinden(const LLString& name) const;
        
        BOOL isLoaded() const { return mIsLoaded; }

        std::vector<LLMute> getMutes() const;
        
        // request the mute list
        void requestFromServer(const LLUUID& agent_id);

        // call this method on logout to save everything.
        void cache(const LLUUID& agent_id);

private:
        BOOL loadFromFile(const LLString& filename);
        BOOL saveToFile(const LLString& filename);

        void setLoaded();
        void notifyObservers();

        void updateAdd(const LLMute& mute);
        void updateRemove(const LLMute& mute);

        // TODO: NULL out mute_id in database
        static void processMuteListUpdate(LLMessageSystem* msg, void**);
        static void processUseCachedMuteList(LLMessageSystem* msg, void**);

        static void onFileMuteList(void** user_data, S32 code, LLExtStat ext_status);

private:
        struct compare_by_name
        {
                bool operator()(const LLMute& a, const LLMute& b) const
                {
                        return a.mName < b.mName;
                }
        };
        struct compare_by_id
        {
                bool operator()(const LLMute& a, const LLMute& b) const
                {
                        return a.mID < b.mID;
                }
        };
        typedef std::set<LLMute, compare_by_id> mute_set_t;
        mute_set_t mMutes;
        
        typedef std::set<LLString> string_set_t;
        string_set_t mLegacyMutes;
        
        typedef std::set<LLMuteListObserver*> observer_set_t;
        observer_set_t mObservers;

        BOOL mIsLoaded;

        friend class LLDispatchEmptyMuteList;
};

class LLMuteListObserver
{
public:
        virtual ~LLMuteListObserver() { }
        virtual void onChange() = 0;
};

extern LLMuteList *gMuteListp;

#endif //LL_MUTELIST_H

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