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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsCommandParams_h__
#define nsCommandParams_h__
#include "nsString.h"
#include "nsICommandParams.h"
#include "nsCOMPtr.h"
#include "PLDHashTable.h"
class nsCommandParams : public nsICommandParams
{
public:
nsCommandParams();
NS_DECL_ISUPPORTS
NS_DECL_NSICOMMANDPARAMS
protected:
virtual ~nsCommandParams();
struct HashEntry : public PLDHashEntryHdr
{
nsCString mEntryName;
uint8_t mEntryType;
union
{
bool mBoolean;
int32_t mLong;
double mDouble;
nsString* mString;
nsCString* mCString;
} mData;
nsCOMPtr<nsISupports> mISupports;
HashEntry(uint8_t aType, const char* aEntryName)
: mEntryName(aEntryName)
, mEntryType(aType)
{
Reset(mEntryType);
}
HashEntry(const HashEntry& aRHS)
: mEntryType(aRHS.mEntryType)
{
Reset(mEntryType);
switch (mEntryType) {
case eBooleanType:
mData.mBoolean = aRHS.mData.mBoolean;
break;
case eLongType:
mData.mLong = aRHS.mData.mLong;
break;
case eDoubleType:
mData.mDouble = aRHS.mData.mDouble;
break;
case eWStringType:
NS_ASSERTION(aRHS.mData.mString, "Source entry has no string");
mData.mString = new nsString(*aRHS.mData.mString);
break;
case eStringType:
NS_ASSERTION(aRHS.mData.mCString, "Source entry has no string");
mData.mCString = new nsCString(*aRHS.mData.mCString);
break;
case eISupportsType:
mISupports = aRHS.mISupports.get();
break;
default:
NS_ERROR("Unknown type");
}
}
~HashEntry() { Reset(eNoType); }
void Reset(uint8_t aNewType)
{
switch (mEntryType) {
case eNoType:
break;
case eBooleanType:
mData.mBoolean = false;
break;
case eLongType:
mData.mLong = 0;
break;
case eDoubleType:
mData.mDouble = 0.0;
break;
case eWStringType:
delete mData.mString;
mData.mString = nullptr;
break;
case eISupportsType:
mISupports = nullptr;
break;
case eStringType:
delete mData.mCString;
mData.mCString = nullptr;
break;
default:
NS_ERROR("Unknown type");
}
mEntryType = aNewType;
}
};
HashEntry* GetNamedEntry(const char* aName);
HashEntry* GetOrMakeEntry(const char* aName, uint8_t aEntryType);
protected:
static PLDHashNumber HashKey(const void* aKey);
static bool HashMatchEntry(const PLDHashEntryHdr* aEntry, const void* aKey);
static void HashMoveEntry(PLDHashTable* aTable, const PLDHashEntryHdr* aFrom,
PLDHashEntryHdr* aTo);
static void HashClearEntry(PLDHashTable* aTable, PLDHashEntryHdr* aEntry);
PLDHashTable mValuesHash;
static const PLDHashTableOps sHashOps;
};
#endif // nsCommandParams_h__
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