1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/ds/nsHashPropertyBag.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,257 @@
1.4 +/* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* vim:set ts=4 sw=4 sts=4: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "nsHashPropertyBag.h"
1.11 +#include "nsArray.h"
1.12 +#include "nsArrayEnumerator.h"
1.13 +#include "nsIVariant.h"
1.14 +#include "nsIProperty.h"
1.15 +#include "nsVariant.h"
1.16 +#include "mozilla/Attributes.h"
1.17 +
1.18 +nsresult
1.19 +NS_NewHashPropertyBag(nsIWritablePropertyBag* *_retval)
1.20 +{
1.21 + nsRefPtr<nsHashPropertyBag> hpb = new nsHashPropertyBag();
1.22 + hpb.forget(_retval);
1.23 + return NS_OK;
1.24 +}
1.25 +
1.26 +/*
1.27 + * nsHashPropertyBag impl
1.28 + */
1.29 +
1.30 +NS_IMPL_ADDREF(nsHashPropertyBag)
1.31 +NS_IMPL_RELEASE(nsHashPropertyBag)
1.32 +NS_INTERFACE_MAP_BEGIN(nsHashPropertyBag)
1.33 + NS_INTERFACE_MAP_ENTRY(nsIWritablePropertyBag)
1.34 + NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIPropertyBag, nsIWritablePropertyBag)
1.35 + NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIWritablePropertyBag)
1.36 + NS_INTERFACE_MAP_ENTRY(nsIPropertyBag2)
1.37 + NS_INTERFACE_MAP_ENTRY(nsIWritablePropertyBag2)
1.38 +NS_INTERFACE_MAP_END
1.39 +
1.40 +NS_IMETHODIMP
1.41 +nsHashPropertyBag::HasKey(const nsAString& name, bool *aResult)
1.42 +{
1.43 + *aResult = mPropertyHash.Get(name, nullptr);
1.44 +
1.45 + return NS_OK;
1.46 +}
1.47 +
1.48 +NS_IMETHODIMP
1.49 +nsHashPropertyBag::Get(const nsAString& name, nsIVariant* *_retval)
1.50 +{
1.51 + if (!mPropertyHash.Get(name, _retval))
1.52 + *_retval = nullptr;
1.53 +
1.54 + return NS_OK;
1.55 +}
1.56 +
1.57 +NS_IMETHODIMP
1.58 +nsHashPropertyBag::GetProperty(const nsAString& name, nsIVariant* *_retval)
1.59 +{
1.60 + bool isFound = mPropertyHash.Get(name, _retval);
1.61 + if (!isFound)
1.62 + return NS_ERROR_FAILURE;
1.63 +
1.64 + return NS_OK;
1.65 +}
1.66 +
1.67 +NS_IMETHODIMP
1.68 +nsHashPropertyBag::SetProperty(const nsAString& name, nsIVariant *value)
1.69 +{
1.70 + if (NS_WARN_IF(!value))
1.71 + return NS_ERROR_INVALID_ARG;
1.72 +
1.73 + mPropertyHash.Put(name, value);
1.74 +
1.75 + return NS_OK;
1.76 +}
1.77 +
1.78 +NS_IMETHODIMP
1.79 +nsHashPropertyBag::DeleteProperty(const nsAString& name)
1.80 +{
1.81 + // is it too much to ask for ns*Hashtable to return
1.82 + // a boolean indicating whether RemoveEntry succeeded
1.83 + // or not?!?!
1.84 + bool isFound = mPropertyHash.Get(name, nullptr);
1.85 + if (!isFound)
1.86 + return NS_ERROR_FAILURE;
1.87 +
1.88 + // then from the hash
1.89 + mPropertyHash.Remove(name);
1.90 +
1.91 + return NS_OK;
1.92 +}
1.93 +
1.94 +
1.95 +//
1.96 +// nsSimpleProperty class and impl; used for GetEnumerator
1.97 +//
1.98 +
1.99 +class nsSimpleProperty MOZ_FINAL : public nsIProperty {
1.100 +public:
1.101 + nsSimpleProperty(const nsAString& aName, nsIVariant* aValue)
1.102 + : mName(aName), mValue(aValue)
1.103 + {
1.104 + }
1.105 +
1.106 + NS_DECL_ISUPPORTS
1.107 + NS_DECL_NSIPROPERTY
1.108 +protected:
1.109 + nsString mName;
1.110 + nsCOMPtr<nsIVariant> mValue;
1.111 +};
1.112 +
1.113 +NS_IMPL_ISUPPORTS(nsSimpleProperty, nsIProperty)
1.114 +
1.115 +NS_IMETHODIMP
1.116 +nsSimpleProperty::GetName(nsAString& aName)
1.117 +{
1.118 + aName.Assign(mName);
1.119 + return NS_OK;
1.120 +}
1.121 +
1.122 +NS_IMETHODIMP
1.123 +nsSimpleProperty::GetValue(nsIVariant* *aValue)
1.124 +{
1.125 + NS_IF_ADDREF(*aValue = mValue);
1.126 + return NS_OK;
1.127 +}
1.128 +
1.129 +// end nsSimpleProperty
1.130 +
1.131 +static PLDHashOperator
1.132 +PropertyHashToArrayFunc (const nsAString &aKey,
1.133 + nsIVariant* aData,
1.134 + void *userArg)
1.135 +{
1.136 + nsIMutableArray *propertyArray =
1.137 + static_cast<nsIMutableArray *>(userArg);
1.138 + nsSimpleProperty *sprop = new nsSimpleProperty(aKey, aData);
1.139 + propertyArray->AppendElement(sprop, false);
1.140 + return PL_DHASH_NEXT;
1.141 +}
1.142 +
1.143 +
1.144 +NS_IMETHODIMP
1.145 +nsHashPropertyBag::GetEnumerator(nsISimpleEnumerator* *_retval)
1.146 +{
1.147 + nsCOMPtr<nsIMutableArray> propertyArray = nsArray::Create();
1.148 + if (!propertyArray)
1.149 + return NS_ERROR_OUT_OF_MEMORY;
1.150 +
1.151 + mPropertyHash.EnumerateRead(PropertyHashToArrayFunc, propertyArray.get());
1.152 +
1.153 + return NS_NewArrayEnumerator(_retval, propertyArray);
1.154 +}
1.155 +
1.156 +#define IMPL_GETSETPROPERTY_AS(Name, Type) \
1.157 +NS_IMETHODIMP \
1.158 +nsHashPropertyBag::GetPropertyAs ## Name (const nsAString & prop, Type *_retval) \
1.159 +{ \
1.160 + nsIVariant* v = mPropertyHash.GetWeak(prop); \
1.161 + if (!v) \
1.162 + return NS_ERROR_NOT_AVAILABLE; \
1.163 + return v->GetAs ## Name(_retval); \
1.164 +} \
1.165 +\
1.166 +NS_IMETHODIMP \
1.167 +nsHashPropertyBag::SetPropertyAs ## Name (const nsAString & prop, Type value) \
1.168 +{ \
1.169 + nsCOMPtr<nsIWritableVariant> var = new nsVariant(); \
1.170 + var->SetAs ## Name(value); \
1.171 + return SetProperty(prop, var); \
1.172 +}
1.173 +
1.174 +IMPL_GETSETPROPERTY_AS(Int32, int32_t)
1.175 +IMPL_GETSETPROPERTY_AS(Uint32, uint32_t)
1.176 +IMPL_GETSETPROPERTY_AS(Int64, int64_t)
1.177 +IMPL_GETSETPROPERTY_AS(Uint64, uint64_t)
1.178 +IMPL_GETSETPROPERTY_AS(Double, double)
1.179 +IMPL_GETSETPROPERTY_AS(Bool, bool)
1.180 +
1.181 +
1.182 +NS_IMETHODIMP
1.183 +nsHashPropertyBag::GetPropertyAsAString(const nsAString & prop, nsAString & _retval)
1.184 +{
1.185 + nsIVariant* v = mPropertyHash.GetWeak(prop);
1.186 + if (!v)
1.187 + return NS_ERROR_NOT_AVAILABLE;
1.188 + return v->GetAsAString(_retval);
1.189 +}
1.190 +
1.191 +NS_IMETHODIMP
1.192 +nsHashPropertyBag::GetPropertyAsACString(const nsAString & prop, nsACString & _retval)
1.193 +{
1.194 + nsIVariant* v = mPropertyHash.GetWeak(prop);
1.195 + if (!v)
1.196 + return NS_ERROR_NOT_AVAILABLE;
1.197 + return v->GetAsACString(_retval);
1.198 +}
1.199 +
1.200 +NS_IMETHODIMP
1.201 +nsHashPropertyBag::GetPropertyAsAUTF8String(const nsAString & prop, nsACString & _retval)
1.202 +{
1.203 + nsIVariant* v = mPropertyHash.GetWeak(prop);
1.204 + if (!v)
1.205 + return NS_ERROR_NOT_AVAILABLE;
1.206 + return v->GetAsAUTF8String(_retval);
1.207 +}
1.208 +
1.209 +NS_IMETHODIMP
1.210 +nsHashPropertyBag::GetPropertyAsInterface(const nsAString & prop,
1.211 + const nsIID & aIID,
1.212 + void** _retval)
1.213 +{
1.214 + nsIVariant* v = mPropertyHash.GetWeak(prop);
1.215 + if (!v)
1.216 + return NS_ERROR_NOT_AVAILABLE;
1.217 + nsCOMPtr<nsISupports> val;
1.218 + nsresult rv = v->GetAsISupports(getter_AddRefs(val));
1.219 + if (NS_FAILED(rv))
1.220 + return rv;
1.221 + if (!val) {
1.222 + // We have a value, but it's null
1.223 + *_retval = nullptr;
1.224 + return NS_OK;
1.225 + }
1.226 + return val->QueryInterface(aIID, _retval);
1.227 +}
1.228 +
1.229 +NS_IMETHODIMP
1.230 +nsHashPropertyBag::SetPropertyAsAString(const nsAString & prop, const nsAString & value)
1.231 +{
1.232 + nsCOMPtr<nsIWritableVariant> var = new nsVariant();
1.233 + var->SetAsAString(value);
1.234 + return SetProperty(prop, var);
1.235 +}
1.236 +
1.237 +NS_IMETHODIMP
1.238 +nsHashPropertyBag::SetPropertyAsACString(const nsAString & prop, const nsACString & value)
1.239 +{
1.240 + nsCOMPtr<nsIWritableVariant> var = new nsVariant();
1.241 + var->SetAsACString(value);
1.242 + return SetProperty(prop, var);
1.243 +}
1.244 +
1.245 +NS_IMETHODIMP
1.246 +nsHashPropertyBag::SetPropertyAsAUTF8String(const nsAString & prop, const nsACString & value)
1.247 +{
1.248 + nsCOMPtr<nsIWritableVariant> var = new nsVariant();
1.249 + var->SetAsAUTF8String(value);
1.250 + return SetProperty(prop, var);
1.251 +}
1.252 +
1.253 +NS_IMETHODIMP
1.254 +nsHashPropertyBag::SetPropertyAsInterface(const nsAString & prop, nsISupports* value)
1.255 +{
1.256 + nsCOMPtr<nsIWritableVariant> var = new nsVariant();
1.257 + var->SetAsISupports(value);
1.258 + return SetProperty(prop, var);
1.259 +}
1.260 +
