mirror of
https://github.com/rn10950/RetroZilla.git
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308 lines
8.5 KiB
C++
308 lines
8.5 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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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Oracle Corporation code.
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*
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* The Initial Developer of the Original Code is
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* Oracle Corporation
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* Portions created by the Initial Developer are Copyright (C) 2004
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir.vukicevic@oracle.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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 "nsComponentManagerUtils.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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nsresult
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NS_NewHashPropertyBag(nsIWritablePropertyBag* *_retval)
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{
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nsHashPropertyBag *hpb = new nsHashPropertyBag();
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if (!hpb)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(hpb);
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nsresult rv = hpb->Init();
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if (NS_FAILED(rv)) {
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NS_RELEASE(hpb);
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return rv;
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}
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*_retval = hpb;
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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_THREADSAFE_ADDREF(nsHashPropertyBag)
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NS_IMPL_THREADSAFE_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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nsresult
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nsHashPropertyBag::Init()
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{
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// we can only assume that Init will fail only due to OOM.
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if (!mPropertyHash.Init())
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return NS_ERROR_OUT_OF_MEMORY;
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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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PRBool 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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NS_ENSURE_ARG_POINTER(value);
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PRBool success = mPropertyHash.Put(name, value);
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if (!success)
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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::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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PRBool isFound = mPropertyHash.Get(name, nsnull);
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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 : 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_ISUPPORTS1(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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PR_STATIC_CALLBACK(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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NS_STATIC_CAST(nsIMutableArray *, userArg);
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nsSimpleProperty *sprop = new nsSimpleProperty(aKey, aData);
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propertyArray->AppendElement(sprop, PR_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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nsresult rv;
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nsCOMPtr<nsIMutableArray> propertyArray;
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rv = NS_NewArray (getter_AddRefs(propertyArray));
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if (NS_FAILED(rv))
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return rv;
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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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if (!var) \
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return NS_ERROR_OUT_OF_MEMORY; \
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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, PRInt32)
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IMPL_GETSETPROPERTY_AS(Uint32, PRUint32)
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IMPL_GETSETPROPERTY_AS(Int64, PRInt64)
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IMPL_GETSETPROPERTY_AS(Uint64, PRUint64)
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IMPL_GETSETPROPERTY_AS(Double, double)
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IMPL_GETSETPROPERTY_AS(Bool, PRBool)
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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 = nsnull;
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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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if (!var)
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return NS_ERROR_OUT_OF_MEMORY;
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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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if (!var)
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return NS_ERROR_OUT_OF_MEMORY;
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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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if (!var)
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return NS_ERROR_OUT_OF_MEMORY;
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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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if (!var)
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return NS_ERROR_OUT_OF_MEMORY;
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var->SetAsISupports(value);
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return SetProperty(prop, var);
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}
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