mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
121 lines
3.2 KiB
C++
121 lines
3.2 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 "IDBFileHandle.h"
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#include "nsIStandardFileStream.h"
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#include "mozilla/dom/file/File.h"
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#include "nsDOMClassInfoID.h"
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#include "FileStream.h"
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#include "IDBDatabase.h"
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USING_INDEXEDDB_NAMESPACE
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namespace {
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inline
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already_AddRefed<nsIFile>
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GetFileFor(FileInfo* aFileInfo)
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{
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FileManager* fileManager = aFileInfo->Manager();
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nsCOMPtr<nsIFile> directory = fileManager->GetDirectory();
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NS_ENSURE_TRUE(directory, nullptr);
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nsCOMPtr<nsIFile> file = fileManager->GetFileForId(directory,
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aFileInfo->Id());
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NS_ENSURE_TRUE(file, nullptr);
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return file.forget();
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}
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} // anonymous namespace
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// static
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already_AddRefed<IDBFileHandle>
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IDBFileHandle::Create(IDBDatabase* aDatabase,
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const nsAString& aName,
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const nsAString& aType,
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already_AddRefed<FileInfo> aFileInfo)
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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nsRefPtr<FileInfo> fileInfo(aFileInfo);
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NS_ASSERTION(fileInfo, "Null pointer!");
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nsRefPtr<IDBFileHandle> newFile = new IDBFileHandle();
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newFile->BindToOwner(aDatabase);
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newFile->mFileStorage = aDatabase;
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newFile->mName = aName;
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newFile->mType = aType;
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newFile->mFile = GetFileFor(fileInfo);
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NS_ENSURE_TRUE(newFile->mFile, nullptr);
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newFile->mFileName.AppendInt(fileInfo->Id());
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fileInfo.swap(newFile->mFileInfo);
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return newFile.forget();
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}
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already_AddRefed<nsISupports>
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IDBFileHandle::CreateStream(nsIFile* aFile, bool aReadOnly)
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{
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nsRefPtr<FileStream> stream = new FileStream();
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nsString streamMode;
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if (aReadOnly) {
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streamMode.AssignLiteral("rb");
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}
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else {
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streamMode.AssignLiteral("r+b");
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}
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nsresult rv = stream->Init(aFile, streamMode,
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nsIStandardFileStream::FLAGS_DEFER_OPEN);
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NS_ENSURE_SUCCESS(rv, nullptr);
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nsCOMPtr<nsISupports> result =
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NS_ISUPPORTS_CAST(nsIStandardFileStream*, stream);
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return result.forget();
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}
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already_AddRefed<nsIDOMFile>
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IDBFileHandle::CreateFileObject(mozilla::dom::file::LockedFile* aLockedFile,
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PRUint32 aFileSize)
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{
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nsCOMPtr<nsIDOMFile> file = new mozilla::dom::file::File(
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mName, mType, aFileSize, mFile, aLockedFile, mFileInfo);
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return file.forget();
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}
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(IDBFileHandle)
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NS_INTERFACE_MAP_ENTRY(nsIIDBFileHandle)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(IDBFileHandle)
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NS_INTERFACE_MAP_END_INHERITING(FileHandle)
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NS_IMPL_ADDREF_INHERITED(IDBFileHandle, FileHandle)
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NS_IMPL_RELEASE_INHERITED(IDBFileHandle, FileHandle)
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DOMCI_DATA(IDBFileHandle, IDBFileHandle)
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NS_IMETHODIMP
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IDBFileHandle::GetDatabase(nsIIDBDatabase** aDatabase)
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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nsCOMPtr<nsIIDBDatabase> database = do_QueryInterface(mFileStorage);
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NS_ASSERTION(database, "This should always succeed!");
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database.forget(aDatabase);
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return NS_OK;
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}
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