gecko-dev/dom/filehandle/MetadataHelper.cpp
Jan Varga 6c4d8f4644 Bug 975696 - Split ArchiveReader and FileHandle implementation into separate dirs. r=bent f=baku
--HG--
rename : dom/file/ArchiveEvent.cpp => dom/archivereader/ArchiveEvent.cpp
rename : dom/file/ArchiveEvent.h => dom/archivereader/ArchiveEvent.h
rename : dom/file/ArchiveReader.cpp => dom/archivereader/ArchiveReader.cpp
rename : dom/file/ArchiveReader.h => dom/archivereader/ArchiveReader.h
rename : dom/file/ArchiveRequest.cpp => dom/archivereader/ArchiveRequest.cpp
rename : dom/file/ArchiveRequest.h => dom/archivereader/ArchiveRequest.h
rename : dom/file/ArchiveZipEvent.cpp => dom/archivereader/ArchiveZipEvent.cpp
rename : dom/file/ArchiveZipEvent.h => dom/archivereader/ArchiveZipEvent.h
rename : dom/file/ArchiveZipFile.cpp => dom/archivereader/ArchiveZipFile.cpp
rename : dom/file/ArchiveZipFile.h => dom/archivereader/ArchiveZipFile.h
rename : dom/file/test/test_archivereader.html => dom/archivereader/test/test_basic.html
rename : dom/file/test/test_archivereader_nonUnicode.html => dom/archivereader/test/test_nonUnicode.html
rename : dom/file/test/test_archivereader_zip_in_zip.html => dom/archivereader/test/test_zip_in_zip.html
rename : dom/file/test/test_bug_793311.html => dom/base/test/test_bug793311.html
rename : dom/file/AsyncHelper.cpp => dom/filehandle/AsyncHelper.cpp
rename : dom/file/AsyncHelper.h => dom/filehandle/AsyncHelper.h
rename : dom/file/File.cpp => dom/filehandle/File.cpp
rename : dom/file/File.h => dom/filehandle/File.h
rename : dom/file/FileHandle.cpp => dom/filehandle/FileHandle.cpp
rename : dom/file/FileHandle.h => dom/filehandle/FileHandle.h
rename : dom/file/FileHelper.cpp => dom/filehandle/FileHelper.cpp
rename : dom/file/FileHelper.h => dom/filehandle/FileHelper.h
rename : dom/file/FileRequest.cpp => dom/filehandle/FileRequest.cpp
rename : dom/file/FileRequest.h => dom/filehandle/FileRequest.h
rename : dom/file/FileService.cpp => dom/filehandle/FileService.cpp
rename : dom/file/FileService.h => dom/filehandle/FileService.h
rename : dom/file/FileStreamWrappers.cpp => dom/filehandle/FileStreamWrappers.cpp
rename : dom/file/FileStreamWrappers.h => dom/filehandle/FileStreamWrappers.h
rename : dom/file/LockedFile.cpp => dom/filehandle/LockedFile.cpp
rename : dom/file/LockedFile.h => dom/filehandle/LockedFile.h
rename : dom/file/MemoryStreams.cpp => dom/filehandle/MemoryStreams.cpp
rename : dom/file/MemoryStreams.h => dom/filehandle/MemoryStreams.h
rename : dom/file/MetadataHelper.cpp => dom/filehandle/MetadataHelper.cpp
rename : dom/file/MetadataHelper.h => dom/filehandle/MetadataHelper.h
rename : dom/file/moz.build => dom/filehandle/moz.build
rename : dom/file/nsIFileStorage.h => dom/filehandle/nsIFileStorage.h
rename : dom/file/test/dummy_worker.js => dom/filehandle/test/dummy_worker.js
rename : dom/file/test/helpers.js => dom/filehandle/test/helpers.js
rename : dom/file/test/mochitest.ini => dom/filehandle/test/mochitest.ini
rename : dom/file/test/moz.build => dom/filehandle/test/moz.build
rename : dom/file/test/test_append_read_data.html => dom/filehandle/test/test_append_read_data.html
rename : dom/file/test/test_getFile.html => dom/filehandle/test/test_getFile.html
rename : dom/file/test/test_getFileId.html => dom/filehandle/test/test_getFileId.html
rename : dom/file/test/test_location.html => dom/filehandle/test/test_location.html
rename : dom/file/test/test_lockedfile_lifetimes.html => dom/filehandle/test/test_lockedfile_lifetimes.html
rename : dom/file/test/test_lockedfile_lifetimes_nested.html => dom/filehandle/test/test_lockedfile_lifetimes_nested.html
rename : dom/file/test/test_lockedfile_ordering.html => dom/filehandle/test/test_lockedfile_ordering.html
rename : dom/file/test/test_overlapping_lockedfiles.html => dom/filehandle/test/test_overlapping_lockedfiles.html
rename : dom/file/test/test_progress_events.html => dom/filehandle/test/test_progress_events.html
rename : dom/file/test/test_readonly_lockedfiles.html => dom/filehandle/test/test_readonly_lockedfiles.html
rename : dom/file/test/test_request_readyState.html => dom/filehandle/test/test_request_readyState.html
rename : dom/file/test/test_stream_tracking.html => dom/filehandle/test/test_stream_tracking.html
rename : dom/file/test/test_success_events_after_abort.html => dom/filehandle/test/test_success_events_after_abort.html
rename : dom/file/test/test_truncate.html => dom/filehandle/test/test_truncate.html
rename : dom/file/test/test_workers.html => dom/filehandle/test/test_workers.html
rename : dom/file/test/test_write_read_data.html => dom/filehandle/test/test_write_read_data.html
2014-05-07 16:32:12 +02:00

108 lines
2.8 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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 "MetadataHelper.h"
#include "js/Value.h"
#include "js/RootingAPI.h"
#include "jsapi.h"
#include "LockedFile.h"
#include "mozilla/dom/FileModeBinding.h"
#include "nsDebug.h"
#include "nsIFileStreams.h"
#include "nsIOutputStream.h"
namespace mozilla {
namespace dom {
nsresult
MetadataHelper::DoAsyncRun(nsISupports* aStream)
{
bool readWrite = mLockedFile->mMode == FileMode::Readwrite;
nsRefPtr<AsyncMetadataGetter> getter =
new AsyncMetadataGetter(aStream, mParams, readWrite);
nsresult rv = getter->AsyncWork(this, nullptr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
MetadataHelper::GetSuccessResult(JSContext* aCx,
JS::MutableHandle<JS::Value> aVal)
{
JS::Rooted<JSObject*> obj(aCx, JS_NewObject(aCx, nullptr, JS::NullPtr(),
JS::NullPtr()));
NS_ENSURE_TRUE(obj, NS_ERROR_OUT_OF_MEMORY);
if (mParams->SizeRequested()) {
JS::Rooted<JS::Value> val(aCx, JS_NumberValue(mParams->Size()));
if (!JS_DefineProperty(aCx, obj, "size", val, JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
}
if (mParams->LastModifiedRequested()) {
double msec = mParams->LastModified();
JSObject *date = JS_NewDateObjectMsec(aCx, msec);
NS_ENSURE_TRUE(date, NS_ERROR_OUT_OF_MEMORY);
JS::Rooted<JS::Value> dateRoot(aCx, JS::ObjectValue(*date));
if (!JS_DefineProperty(aCx, obj, "lastModified", dateRoot,
JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
}
aVal.setObject(*obj);
return NS_OK;
}
nsresult
MetadataHelper::AsyncMetadataGetter::DoStreamWork(nsISupports* aStream)
{
nsresult rv;
if (mReadWrite) {
// Force a flush (so all pending writes are flushed to the disk and file
// metadata is updated too).
nsCOMPtr<nsIOutputStream> ostream = do_QueryInterface(aStream);
NS_ASSERTION(ostream, "This should always succeed!");
rv = ostream->Flush();
NS_ENSURE_SUCCESS(rv, rv);
}
nsCOMPtr<nsIFileMetadata> metadata = do_QueryInterface(aStream);
if (mParams->SizeRequested()) {
int64_t size;
rv = metadata->GetSize(&size);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(size >= 0, NS_ERROR_FAILURE);
mParams->mSize = uint64_t(size);
}
if (mParams->LastModifiedRequested()) {
int64_t lastModified;
rv = metadata->GetLastModified(&lastModified);
NS_ENSURE_SUCCESS(rv, rv);
mParams->mLastModified = lastModified;
}
return NS_OK;
}
} // namespace dom
} // namespace mozilla