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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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
#ifndef nsCommandParams_h
#define nsCommandParams_h
#include "mozilla/ErrorResult.h"
#include "nsString.h"
#include "nsICommandParams.h"
#include "nsCOMPtr.h"
#include "PLDHashTable.h"
class nsCommandParams : public nsICommandParams {
using ErrorResult = mozilla::ErrorResult;
using IgnoredErrorResult = mozilla::IgnoredErrorResult;
public:
nsCommandParams();
NS_DECL_ISUPPORTS
NS_DECL_NSICOMMANDPARAMS
bool GetBool(const char* aName, ErrorResult& aRv) const;
inline bool GetBool(const char* aName) const {
IgnoredErrorResult error;
return GetBool(aName, error);
}
int32_t GetInt(const char* aName, ErrorResult& aRv) const;
inline int32_t GetInt(const char* aName) const {
IgnoredErrorResult error;
return GetInt(aName, error);
}
double GetDouble(const char* aName, ErrorResult& aRv) const;
inline double GetDouble(const char* aName) const {
IgnoredErrorResult error;
return GetDouble(aName, error);
}
nsresult GetString(const char* aName, nsAString& aValue) const;
nsresult GetCString(const char* aName, nsACString& aValue) const;
already_AddRefed<nsISupports> GetISupports(const char* aName,
ErrorResult& aRv) const;
inline already_AddRefed<nsISupports> GetISupports(const char* aName) const {
IgnoredErrorResult error;
return GetISupports(aName, error);
}
nsresult SetBool(const char* aName, bool aValue);
nsresult SetInt(const char* aName, int32_t aValue);
nsresult SetDouble(const char* aName, double aValue);
nsresult SetString(const char* aName, const nsAString& aValue);
nsresult SetCString(const char* aName, const nsACString& aValue);
nsresult SetISupports(const char* aName, nsISupports* aValue);
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), mData() {
Reset(mEntryType);
}
explicit 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) const;
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;
};
nsCommandParams* nsICommandParams::AsCommandParams() {
return static_cast<nsCommandParams*>(this);
}
const nsCommandParams* nsICommandParams::AsCommandParams() const {
return static_cast<const nsCommandParams*>(this);
}
#endif // nsCommandParams_h