diff options
Diffstat (limited to 'dom/file/File.cpp')
| -rw-r--r-- | dom/file/File.cpp | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/dom/file/File.cpp b/dom/file/File.cpp new file mode 100644 index 0000000000..9995d35c52 --- /dev/null +++ b/dom/file/File.cpp @@ -0,0 +1,202 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "File.h" +#include "FileBlobImpl.h" +#include "MemoryBlobImpl.h" +#include "MultipartBlobImpl.h" +#include "mozilla/dom/BlobBinding.h" +#include "mozilla/dom/FileBinding.h" +#include "mozilla/dom/FileCreatorHelper.h" +#include "mozilla/dom/FileSystemUtils.h" +#include "mozilla/dom/Promise.h" +#include "nsIFile.h" +#include "nsContentUtils.h" +#include "nsXULAppAPI.h" + +namespace mozilla::dom { + +File::File(nsIGlobalObject* aGlobal, BlobImpl* aImpl) : Blob(aGlobal, aImpl) { + MOZ_ASSERT(aImpl->IsFile()); +} + +File::~File() = default; + +/* static */ +File* File::Create(nsIGlobalObject* aGlobal, BlobImpl* aImpl) { + MOZ_ASSERT(aImpl); + MOZ_ASSERT(aImpl->IsFile()); + + MOZ_ASSERT(aGlobal); + if (NS_WARN_IF(!aGlobal)) { + return nullptr; + } + + return new File(aGlobal, aImpl); +} + +/* static */ +already_AddRefed<File> File::CreateMemoryFileWithCustomLastModified( + nsIGlobalObject* aGlobal, void* aMemoryBuffer, uint64_t aLength, + const nsAString& aName, const nsAString& aContentType, + int64_t aLastModifiedDate) { + RefPtr<MemoryBlobImpl> blobImpl = + MemoryBlobImpl::CreateWithCustomLastModified( + aMemoryBuffer, aLength, aName, aContentType, aLastModifiedDate); + MOZ_ASSERT(blobImpl); + + RefPtr<File> file = File::Create(aGlobal, blobImpl); + return file.forget(); +} + +/* static */ +already_AddRefed<File> File::CreateMemoryFileWithLastModifiedNow( + nsIGlobalObject* aGlobal, void* aMemoryBuffer, uint64_t aLength, + const nsAString& aName, const nsAString& aContentType) { + MOZ_ASSERT(aGlobal); + + RefPtr<MemoryBlobImpl> blobImpl = MemoryBlobImpl::CreateWithLastModifiedNow( + aMemoryBuffer, aLength, aName, aContentType, aGlobal->GetRTPCallerType()); + MOZ_ASSERT(blobImpl); + + RefPtr<File> file = File::Create(aGlobal, blobImpl); + return file.forget(); +} + +/* static */ +already_AddRefed<File> File::CreateFromFile(nsIGlobalObject* aGlobal, + nsIFile* aFile) { + MOZ_DIAGNOSTIC_ASSERT(XRE_IsParentProcess()); + + MOZ_ASSERT(aGlobal); + if (NS_WARN_IF(!aGlobal)) { + return nullptr; + } + + RefPtr<File> file = new File(aGlobal, new FileBlobImpl(aFile)); + return file.forget(); +} + +/* static */ +already_AddRefed<File> File::CreateFromFile(nsIGlobalObject* aGlobal, + nsIFile* aFile, + const nsAString& aName, + const nsAString& aContentType) { + MOZ_DIAGNOSTIC_ASSERT(XRE_IsParentProcess()); + + MOZ_ASSERT(aGlobal); + if (NS_WARN_IF(!aGlobal)) { + return nullptr; + } + + RefPtr<File> file = + new File(aGlobal, new FileBlobImpl(aFile, aName, aContentType)); + return file.forget(); +} + +JSObject* File::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) { + return File_Binding::Wrap(aCx, this, aGivenProto); +} + +void File::GetName(nsAString& aFileName) const { mImpl->GetName(aFileName); } + +void File::GetRelativePath(nsAString& aPath) const { + aPath.Truncate(); + + nsAutoString path; + mImpl->GetDOMPath(path); + + // WebkitRelativePath doesn't start with '/' + if (!path.IsEmpty()) { + MOZ_ASSERT(path[0] == FILESYSTEM_DOM_PATH_SEPARATOR_CHAR); + aPath.Assign(Substring(path, 1)); + } +} + +int64_t File::GetLastModified(ErrorResult& aRv) { + return mImpl->GetLastModified(aRv); +} + +void File::GetMozFullPath(nsAString& aFilename, + SystemCallerGuarantee aGuarantee, ErrorResult& aRv) { + mImpl->GetMozFullPath(aFilename, aGuarantee, aRv); +} + +void File::GetMozFullPathInternal(nsAString& aFileName, ErrorResult& aRv) { + mImpl->GetMozFullPathInternal(aFileName, aRv); +} + +/* static */ +already_AddRefed<File> File::Constructor(const GlobalObject& aGlobal, + const Sequence<BlobPart>& aData, + const nsAString& aName, + const FilePropertyBag& aBag, + ErrorResult& aRv) { + RefPtr<MultipartBlobImpl> impl = new MultipartBlobImpl(aName); + + nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports()); + MOZ_ASSERT(global); + + nsAutoString type(aBag.mType); + MakeValidBlobType(type); + impl->InitializeBlob(aData, type, aBag.mEndings == EndingType::Native, + global->GetRTPCallerType(), aRv); + if (aRv.Failed()) { + return nullptr; + } + MOZ_ASSERT(impl->IsFile()); + + if (aBag.mLastModified.WasPassed()) { + impl->SetLastModified(aBag.mLastModified.Value()); + } + + RefPtr<File> file = new File(global, impl); + return file.forget(); +} + +/* static */ +already_AddRefed<Promise> File::CreateFromNsIFile( + const GlobalObject& aGlobal, nsIFile* aData, + const ChromeFilePropertyBag& aBag, SystemCallerGuarantee aGuarantee, + ErrorResult& aRv) { + nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports()); + + MOZ_ASSERT(global); + if (NS_WARN_IF(!global)) { + aRv.Throw(NS_ERROR_FAILURE); + return nullptr; + } + + RefPtr<Promise> promise = + FileCreatorHelper::CreateFile(global, aData, aBag, true, aRv); + return promise.forget(); +} + +/* static */ +already_AddRefed<Promise> File::CreateFromFileName( + const GlobalObject& aGlobal, const nsAString& aPath, + const ChromeFilePropertyBag& aBag, SystemCallerGuarantee aGuarantee, + ErrorResult& aRv) { + nsCOMPtr<nsIFile> file; + aRv = NS_NewLocalFile(aPath, false, getter_AddRefs(file)); + if (NS_WARN_IF(aRv.Failed())) { + return nullptr; + } + + nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports()); + + MOZ_ASSERT(global); + if (NS_WARN_IF(!global)) { + aRv.Throw(NS_ERROR_FAILURE); + return nullptr; + } + + RefPtr<Promise> promise = + FileCreatorHelper::CreateFile(global, file, aBag, false, aRv); + return promise.forget(); +} + +} // namespace mozilla::dom |