mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-06-03 06:10:13 +02:00
391 lines
12 KiB
C++
391 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Original Author: David W. Hyatt (hyatt@netscape.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 "nsCOMPtr.h"
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#include "nsChromeUIDataSource.h"
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#include "nsIRDFDataSource.h"
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#include "nsIRDFObserver.h"
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#include "nsIRDFRemoteDataSource.h"
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#include "nsCRT.h"
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#include "rdf.h"
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#include "nsIServiceManager.h"
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#include "nsIRDFService.h"
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#include "nsRDFCID.h"
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#include "nsIRDFResource.h"
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#include "nsIRDFDataSource.h"
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#include "nsIRDFContainer.h"
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#include "nsHashtable.h"
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#include "nsString.h"
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#include "nsXPIDLString.h"
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#include "nsISimpleEnumerator.h"
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#include "nsNetUtil.h"
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#include "nsISupportsArray.h"
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#include "nsIIOService.h"
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////////////////////////////////////////////////////////////////////////////////
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static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID);
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nsChromeUIDataSource::nsChromeUIDataSource(nsIRDFDataSource* aComposite)
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{
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mComposite = aComposite;
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mComposite->AddObserver(this);
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nsresult rv;
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rv = CallGetService(kRDFServiceCID, &mRDFService);
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NS_ASSERTION(NS_SUCCEEDED(rv), "unable to get RDF service");
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mRDFService->RegisterDataSource(this, PR_TRUE);
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}
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nsChromeUIDataSource::~nsChromeUIDataSource()
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{
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mRDFService->UnregisterDataSource(this);
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NS_IF_RELEASE(mRDFService);
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}
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// we require a special implementation of Release, which knows about
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// a circular strong reference
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NS_IMPL_ADDREF(nsChromeUIDataSource)
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NS_IMPL_QUERY_INTERFACE2(nsChromeUIDataSource, nsIRDFDataSource, nsIRDFObserver)
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NS_IMETHODIMP_(nsrefcnt)
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nsChromeUIDataSource::Release()
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{
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NS_PRECONDITION(PRInt32(mRefCnt) > 0, "duplicate release");
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--mRefCnt;
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NS_LOG_RELEASE(this, mRefCnt, "nsChromeUIDataSource");
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// delete if the last reference is our strong circular reference
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if (mComposite && PRInt32(mRefCnt) == 1) {
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mComposite->RemoveObserver(this);
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return 0;
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}
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else if (mRefCnt == 0) {
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delete this;
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return 0;
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}
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return mRefCnt;
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}
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//----------------------------------------------------------------------
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//
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// nsIRDFDataSource interface
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//
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NS_IMETHODIMP
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nsChromeUIDataSource::GetURI(char** aURI)
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{
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*aURI = nsCRT::strdup("rdf:chrome");
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if (! *aURI)
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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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nsChromeUIDataSource::GetSource(nsIRDFResource* property,
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nsIRDFNode* target,
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PRBool tv,
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nsIRDFResource** source)
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{
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return mComposite->GetSource(property, target, tv, source);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::GetSources(nsIRDFResource* aProperty,
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nsIRDFNode* aTarget,
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PRBool aTruthValue,
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nsISimpleEnumerator** aResult)
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{
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return mComposite->GetSources(aProperty, aTarget, aTruthValue, aResult);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::GetTarget(nsIRDFResource* aSource,
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nsIRDFResource* aProperty,
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PRBool aTruthValue,
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nsIRDFNode** aResult)
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{
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return mComposite->GetTarget(aSource, aProperty, aTruthValue, aResult);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::GetTargets(nsIRDFResource* aSource,
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nsIRDFResource* aProperty,
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PRBool aTruthValue,
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nsISimpleEnumerator** aResult)
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{
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return mComposite->GetTargets(aSource, aProperty, aTruthValue, aResult);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::Assert(nsIRDFResource* aSource,
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nsIRDFResource* aProperty,
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nsIRDFNode* aTarget,
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PRBool aTruthValue)
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{
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return mComposite->Assert(aSource, aProperty, aTarget, aTruthValue);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::Unassert(nsIRDFResource* aSource,
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nsIRDFResource* aProperty,
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nsIRDFNode* aTarget)
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{
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return mComposite->Unassert(aSource, aProperty, aTarget);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::Change(nsIRDFResource* aSource,
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nsIRDFResource* aProperty,
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nsIRDFNode* aOldTarget,
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nsIRDFNode* aNewTarget)
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{
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return mComposite->Change(aSource, aProperty, aOldTarget, aNewTarget);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::Move(nsIRDFResource* aOldSource,
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nsIRDFResource* aNewSource,
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nsIRDFResource* aProperty,
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nsIRDFNode* aTarget)
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{
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return mComposite->Move(aOldSource, aNewSource, aProperty, aTarget);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::HasAssertion(nsIRDFResource* aSource,
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nsIRDFResource* aProperty,
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nsIRDFNode* aTarget,
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PRBool aTruthValue,
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PRBool* aResult)
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{
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return mComposite->HasAssertion(aSource, aProperty, aTarget, aTruthValue, aResult);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::AddObserver(nsIRDFObserver* aObserver)
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{
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NS_PRECONDITION(aObserver != nsnull, "null ptr");
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if (! aObserver)
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return NS_ERROR_NULL_POINTER;
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// XXX ensure uniqueness?
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mObservers.AppendObject(aObserver);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::RemoveObserver(nsIRDFObserver* aObserver)
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{
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NS_PRECONDITION(aObserver != nsnull, "null ptr");
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if (! aObserver)
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return NS_ERROR_NULL_POINTER;
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mObservers.RemoveObject(aObserver);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::HasArcIn(nsIRDFNode *aNode, nsIRDFResource *aArc, PRBool *result)
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{
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return mComposite->HasArcIn(aNode, aArc, result);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::HasArcOut(nsIRDFResource *aSource, nsIRDFResource *aArc, PRBool *result)
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{
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return mComposite->HasArcOut(aSource, aArc, result);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::ArcLabelsIn(nsIRDFNode* aTarget, nsISimpleEnumerator** aResult)
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{
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return mComposite->ArcLabelsIn(aTarget, aResult);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::ArcLabelsOut(nsIRDFResource* aSource,
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nsISimpleEnumerator** aResult)
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{
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return mComposite->ArcLabelsOut(aSource, aResult);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::GetAllResources(nsISimpleEnumerator** aResult)
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{
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return mComposite->GetAllResources(aResult);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::GetAllCmds(nsIRDFResource* source,
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nsISimpleEnumerator/*<nsIRDFResource>*/** result)
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{
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return mComposite->GetAllCmds(source, result);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::IsCommandEnabled(nsISupportsArray/*<nsIRDFResource>*/* aSources,
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nsIRDFResource* aCommand,
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nsISupportsArray/*<nsIRDFResource>*/* aArguments,
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PRBool* aResult)
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{
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return mComposite->IsCommandEnabled(aSources, aCommand, aArguments, aResult);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::DoCommand(nsISupportsArray/*<nsIRDFResource>*/* aSources,
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nsIRDFResource* aCommand,
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nsISupportsArray/*<nsIRDFResource>*/* aArguments)
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{
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return mComposite->DoCommand(aSources, aCommand, aArguments);
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::BeginUpdateBatch() {
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return mComposite->BeginUpdateBatch();
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::EndUpdateBatch() {
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return mComposite->EndUpdateBatch();
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}
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//////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP
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nsChromeUIDataSource::OnAssert(nsIRDFDataSource* aDataSource,
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nsIRDFResource* aSource,
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nsIRDFResource* aProperty,
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nsIRDFNode* aTarget)
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{
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PRInt32 count = mObservers.Count();
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for (PRInt32 i = count - 1; i >= 0; --i) {
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mObservers[i]->OnAssert(this, aSource, aProperty, aTarget);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::OnUnassert(nsIRDFDataSource* aDataSource,
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nsIRDFResource* aSource,
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nsIRDFResource* aProperty,
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nsIRDFNode* aTarget)
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{
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PRInt32 count = mObservers.Count();
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for (PRInt32 i = count - 1; i >= 0; --i) {
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mObservers[i]->OnUnassert(aDataSource, aSource, aProperty, aTarget);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::OnChange(nsIRDFDataSource* aDataSource,
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nsIRDFResource* aSource,
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nsIRDFResource* aProperty,
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nsIRDFNode* aOldTarget,
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nsIRDFNode* aNewTarget)
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{
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PRInt32 count = mObservers.Count();
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for (PRInt32 i = count - 1; i >= 0; --i) {
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mObservers[i]->OnChange(aDataSource, aSource, aProperty, aOldTarget, aNewTarget);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::OnMove(nsIRDFDataSource* aDataSource,
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nsIRDFResource* aOldSource,
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nsIRDFResource* aNewSource,
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nsIRDFResource* aProperty,
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nsIRDFNode* aTarget)
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{
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PRInt32 count = mObservers.Count();
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for (PRInt32 i = count - 1; i >= 0; --i) {
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mObservers[i]->OnMove(aDataSource, aOldSource, aNewSource, aProperty, aTarget);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::OnBeginUpdateBatch(nsIRDFDataSource* aDataSource)
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{
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PRInt32 count = mObservers.Count();
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for (PRInt32 i = count - 1; i >= 0; --i) {
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mObservers[i]->OnBeginUpdateBatch(aDataSource);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsChromeUIDataSource::OnEndUpdateBatch(nsIRDFDataSource* aDataSource)
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{
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PRInt32 count = mObservers.Count();
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for (PRInt32 i = count - 1; i >= 0; --i) {
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mObservers[i]->OnEndUpdateBatch(aDataSource);
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}
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return NS_OK;
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}
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///////////////////////////////////////////////////////////////////////////////////////////
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nsresult
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NS_NewChromeUIDataSource(nsIRDFDataSource* aComposite, nsIRDFDataSource** aResult)
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{
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NS_PRECONDITION(aResult != nsnull, "null ptr");
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if (! aResult)
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return NS_ERROR_NULL_POINTER;
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nsChromeUIDataSource* ChromeUIDataSource = new nsChromeUIDataSource(aComposite);
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if (ChromeUIDataSource == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(*aResult = ChromeUIDataSource);
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return NS_OK;
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}
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