mirror of
https://github.com/mozilla/gecko-dev.git
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258 lines
6.6 KiB
C++
258 lines
6.6 KiB
C++
/* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:set ts=4 sw=4 sts=4: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsHashPropertyBag.h"
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#include "nsArray.h"
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#include "nsArrayEnumerator.h"
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#include "nsIVariant.h"
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#include "nsIProperty.h"
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#include "nsVariant.h"
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#include "mozilla/Attributes.h"
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nsresult
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NS_NewHashPropertyBag(nsIWritablePropertyBag* *_retval)
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{
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nsRefPtr<nsHashPropertyBag> hpb = new nsHashPropertyBag();
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hpb.forget(_retval);
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return NS_OK;
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}
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/*
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* nsHashPropertyBag impl
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*/
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NS_IMPL_ADDREF(nsHashPropertyBag)
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NS_IMPL_RELEASE(nsHashPropertyBag)
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NS_INTERFACE_MAP_BEGIN(nsHashPropertyBag)
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NS_INTERFACE_MAP_ENTRY(nsIWritablePropertyBag)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIPropertyBag, nsIWritablePropertyBag)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIWritablePropertyBag)
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NS_INTERFACE_MAP_ENTRY(nsIPropertyBag2)
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NS_INTERFACE_MAP_ENTRY(nsIWritablePropertyBag2)
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NS_INTERFACE_MAP_END
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NS_IMETHODIMP
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nsHashPropertyBag::HasKey(const nsAString& name, bool *aResult)
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{
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*aResult = mPropertyHash.Get(name, nullptr);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHashPropertyBag::Get(const nsAString& name, nsIVariant* *_retval)
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{
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if (!mPropertyHash.Get(name, _retval))
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*_retval = nullptr;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHashPropertyBag::GetProperty(const nsAString& name, nsIVariant* *_retval)
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{
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bool isFound = mPropertyHash.Get(name, _retval);
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if (!isFound)
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return NS_ERROR_FAILURE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHashPropertyBag::SetProperty(const nsAString& name, nsIVariant *value)
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{
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if (NS_WARN_IF(!value))
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return NS_ERROR_INVALID_ARG;
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mPropertyHash.Put(name, value);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHashPropertyBag::DeleteProperty(const nsAString& name)
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{
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// is it too much to ask for ns*Hashtable to return
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// a boolean indicating whether RemoveEntry succeeded
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// or not?!?!
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bool isFound = mPropertyHash.Get(name, nullptr);
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if (!isFound)
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return NS_ERROR_FAILURE;
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// then from the hash
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mPropertyHash.Remove(name);
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return NS_OK;
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}
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//
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// nsSimpleProperty class and impl; used for GetEnumerator
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//
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class nsSimpleProperty MOZ_FINAL : public nsIProperty {
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public:
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nsSimpleProperty(const nsAString& aName, nsIVariant* aValue)
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: mName(aName), mValue(aValue)
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{
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}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIPROPERTY
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protected:
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nsString mName;
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nsCOMPtr<nsIVariant> mValue;
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};
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NS_IMPL_ISUPPORTS(nsSimpleProperty, nsIProperty)
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NS_IMETHODIMP
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nsSimpleProperty::GetName(nsAString& aName)
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{
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aName.Assign(mName);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsSimpleProperty::GetValue(nsIVariant* *aValue)
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{
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NS_IF_ADDREF(*aValue = mValue);
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return NS_OK;
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}
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// end nsSimpleProperty
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static PLDHashOperator
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PropertyHashToArrayFunc (const nsAString &aKey,
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nsIVariant* aData,
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void *userArg)
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{
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nsIMutableArray *propertyArray =
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static_cast<nsIMutableArray *>(userArg);
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nsSimpleProperty *sprop = new nsSimpleProperty(aKey, aData);
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propertyArray->AppendElement(sprop, false);
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return PL_DHASH_NEXT;
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}
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NS_IMETHODIMP
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nsHashPropertyBag::GetEnumerator(nsISimpleEnumerator* *_retval)
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{
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nsCOMPtr<nsIMutableArray> propertyArray = nsArray::Create();
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if (!propertyArray)
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return NS_ERROR_OUT_OF_MEMORY;
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mPropertyHash.EnumerateRead(PropertyHashToArrayFunc, propertyArray.get());
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return NS_NewArrayEnumerator(_retval, propertyArray);
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}
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#define IMPL_GETSETPROPERTY_AS(Name, Type) \
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NS_IMETHODIMP \
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nsHashPropertyBag::GetPropertyAs ## Name (const nsAString & prop, Type *_retval) \
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{ \
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nsIVariant* v = mPropertyHash.GetWeak(prop); \
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if (!v) \
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return NS_ERROR_NOT_AVAILABLE; \
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return v->GetAs ## Name(_retval); \
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} \
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\
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NS_IMETHODIMP \
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nsHashPropertyBag::SetPropertyAs ## Name (const nsAString & prop, Type value) \
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{ \
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nsCOMPtr<nsIWritableVariant> var = new nsVariant(); \
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var->SetAs ## Name(value); \
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return SetProperty(prop, var); \
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}
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IMPL_GETSETPROPERTY_AS(Int32, int32_t)
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IMPL_GETSETPROPERTY_AS(Uint32, uint32_t)
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IMPL_GETSETPROPERTY_AS(Int64, int64_t)
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IMPL_GETSETPROPERTY_AS(Uint64, uint64_t)
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IMPL_GETSETPROPERTY_AS(Double, double)
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IMPL_GETSETPROPERTY_AS(Bool, bool)
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NS_IMETHODIMP
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nsHashPropertyBag::GetPropertyAsAString(const nsAString & prop, nsAString & _retval)
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{
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nsIVariant* v = mPropertyHash.GetWeak(prop);
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if (!v)
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return NS_ERROR_NOT_AVAILABLE;
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return v->GetAsAString(_retval);
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}
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NS_IMETHODIMP
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nsHashPropertyBag::GetPropertyAsACString(const nsAString & prop, nsACString & _retval)
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{
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nsIVariant* v = mPropertyHash.GetWeak(prop);
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if (!v)
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return NS_ERROR_NOT_AVAILABLE;
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return v->GetAsACString(_retval);
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}
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NS_IMETHODIMP
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nsHashPropertyBag::GetPropertyAsAUTF8String(const nsAString & prop, nsACString & _retval)
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{
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nsIVariant* v = mPropertyHash.GetWeak(prop);
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if (!v)
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return NS_ERROR_NOT_AVAILABLE;
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return v->GetAsAUTF8String(_retval);
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}
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NS_IMETHODIMP
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nsHashPropertyBag::GetPropertyAsInterface(const nsAString & prop,
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const nsIID & aIID,
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void** _retval)
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{
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nsIVariant* v = mPropertyHash.GetWeak(prop);
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if (!v)
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return NS_ERROR_NOT_AVAILABLE;
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nsCOMPtr<nsISupports> val;
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nsresult rv = v->GetAsISupports(getter_AddRefs(val));
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if (NS_FAILED(rv))
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return rv;
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if (!val) {
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// We have a value, but it's null
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*_retval = nullptr;
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return NS_OK;
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}
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return val->QueryInterface(aIID, _retval);
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}
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NS_IMETHODIMP
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nsHashPropertyBag::SetPropertyAsAString(const nsAString & prop, const nsAString & value)
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{
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nsCOMPtr<nsIWritableVariant> var = new nsVariant();
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var->SetAsAString(value);
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return SetProperty(prop, var);
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}
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NS_IMETHODIMP
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nsHashPropertyBag::SetPropertyAsACString(const nsAString & prop, const nsACString & value)
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{
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nsCOMPtr<nsIWritableVariant> var = new nsVariant();
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var->SetAsACString(value);
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return SetProperty(prop, var);
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}
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NS_IMETHODIMP
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nsHashPropertyBag::SetPropertyAsAUTF8String(const nsAString & prop, const nsACString & value)
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{
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nsCOMPtr<nsIWritableVariant> var = new nsVariant();
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var->SetAsAUTF8String(value);
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return SetProperty(prop, var);
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}
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NS_IMETHODIMP
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nsHashPropertyBag::SetPropertyAsInterface(const nsAString & prop, nsISupports* value)
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{
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nsCOMPtr<nsIWritableVariant> var = new nsVariant();
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var->SetAsISupports(value);
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return SetProperty(prop, var);
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}
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