зеркало из https://github.com/mozilla/gecko-dev.git
78 строки
2.1 KiB
C++
78 строки
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "DOMFileHandle.h"
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#include "nsIFileStreams.h"
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#include "nsDOMClassInfoID.h"
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#include "nsNetUtil.h"
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#include "File.h"
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#include "LockedFile.h"
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USING_FILE_NAMESPACE
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// static
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already_AddRefed<DOMFileHandle>
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DOMFileHandle::Create(nsPIDOMWindow* aWindow,
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nsIFileStorage* aFileStorage,
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nsIFile* aFile)
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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nsRefPtr<DOMFileHandle> newFile(new DOMFileHandle);
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newFile->BindToOwner(aWindow);
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newFile->mFileStorage = aFileStorage;
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nsresult rv = aFile->GetLeafName(newFile->mName);
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NS_ENSURE_SUCCESS(rv, nullptr);
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newFile->mFile = aFile;
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newFile->mFileName = newFile->mName;
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return newFile.forget();
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}
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already_AddRefed<nsISupports>
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DOMFileHandle::CreateStream(nsIFile* aFile, bool aReadOnly)
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{
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nsresult rv;
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if (aReadOnly) {
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nsCOMPtr<nsIInputStream> stream;
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rv = NS_NewLocalFileInputStream(getter_AddRefs(stream), aFile, -1, -1,
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nsIFileInputStream::DEFER_OPEN);
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NS_ENSURE_SUCCESS(rv, nullptr);
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return stream.forget();
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}
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nsCOMPtr<nsIFileStream> stream;
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rv = NS_NewLocalFileStream(getter_AddRefs(stream), aFile, -1, -1,
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nsIFileStream::DEFER_OPEN);
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NS_ENSURE_SUCCESS(rv, nullptr);
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return stream.forget();
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}
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already_AddRefed<nsIDOMFile>
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DOMFileHandle::CreateFileObject(LockedFile* aLockedFile, uint32_t aFileSize)
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{
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nsCOMPtr<nsIDOMFile> file =
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new File(mName, mType, aFileSize, mFile, aLockedFile);
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return file.forget();
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}
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DOMFileHandle)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(DOMFileHandle)
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NS_INTERFACE_MAP_END_INHERITING(FileHandle)
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NS_IMPL_ADDREF_INHERITED(DOMFileHandle, FileHandle)
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NS_IMPL_RELEASE_INHERITED(DOMFileHandle, FileHandle)
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DOMCI_DATA(DOMFileHandle, DOMFileHandle)
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