mirror of
https://github.com/mozilla/gecko-dev.git
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133 lines
3.2 KiB
C++
133 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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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 Communicator client code,
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* released March 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998-1999 Netscape Communications Corporation. All Rights
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* Reserved.
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*
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* Contributors:
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* Doug Turner <dougt@netscape.com>
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*/
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#include "nsIComponentManager.h"
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#include "nsIDirEnumeratorImpl.h"
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#include "nsIDirEnumeratorImplWin.h"
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#include "nsFileUtils.h"
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nsIDirEnumeratorImpl::nsIDirEnumeratorImpl()
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{
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NS_INIT_REFCNT();
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mDir = nsnull;
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}
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nsIDirEnumeratorImpl::~nsIDirEnumeratorImpl()
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{
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if (mDir)
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PR_CloseDir(mDir);
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}
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/* nsISupports interface implementation. */
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NS_IMPL_ISUPPORTS1(nsIDirEnumeratorImpl, nsIDirectoryEnumerator)
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NS_METHOD
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nsIDirEnumeratorImpl::Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr)
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{
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NS_ENSURE_ARG_POINTER(aInstancePtr);
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NS_ENSURE_PROPER_AGGREGATION(outer, aIID);
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nsIDirEnumeratorImpl* inst = new nsIDirEnumeratorImpl();
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if (inst == NULL)
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return NS_ERROR_OUT_OF_MEMORY;
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nsresult rv = inst->QueryInterface(aIID, aInstancePtr);
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if (NS_FAILED(rv))
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{
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delete inst;
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return rv;
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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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nsIDirEnumeratorImpl::Init(nsIFile *parent, PRBool resolveSymlinks)
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{
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char* filepath;
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parent->GetPath(nsIFile::NSPR_PATH, &filepath);
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if (filepath == nsnull)
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return NS_ERROR_OUT_OF_MEMORY;
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mDir = PR_OpenDir(filepath);
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if (mDir == nsnull) // not a directory
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return NS_ERROR_FAILURE;
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nsAllocator::Free(filepath);
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mParent = parent;
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mResolveSymlinks = resolveSymlinks;
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return NS_NewFile(&mNext);
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}
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/* boolean HasMoreElements (); */
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NS_IMETHODIMP
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nsIDirEnumeratorImpl::HasMoreElements(PRBool *result)
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{
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nsresult rv;
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*result = PR_FALSE;
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if (mDir)
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{
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PRDirEntry* entry = PR_ReadDir(mDir, PR_SKIP_BOTH);
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if (entry == nsnull)
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return NS_OK;
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mNext->InitWithFile(mParent);
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rv = mNext->AppendPath(entry->name);
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if (NS_FAILED(rv))
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return rv;
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}
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*result = PR_TRUE;
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return NS_OK;
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}
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/* nsISupports GetNext (); */
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NS_IMETHODIMP
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nsIDirEnumeratorImpl::GetNext(nsISupports **_retval)
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{
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nsresult rv;
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PRBool hasMore;
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rv = HasMoreElements(&hasMore);
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if (NS_FAILED(rv))
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return rv;
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nsIFile *file;
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rv = NS_NewFile(&file);
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if (NS_FAILED(rv))
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return rv;
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rv = file->InitWithFile(mNext);
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*_retval = file; // TODO: QI needed?
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return rv;
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} |