gecko-dev/dom/devicestorage/DeviceStorageRequestChild.cpp

142 lines
3.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "DeviceStorageRequestChild.h"
#include "nsDeviceStorage.h"
#include "nsDOMFile.h"
#include "mozilla/dom/ipc/Blob.h"
namespace mozilla {
namespace dom {
namespace devicestorage {
DeviceStorageRequestChild::DeviceStorageRequestChild()
: mCallback(nullptr)
{
MOZ_COUNT_CTOR(DeviceStorageRequestChild);
}
DeviceStorageRequestChild::DeviceStorageRequestChild(DOMRequest* aRequest,
DeviceStorageFile* aFile)
: mRequest(aRequest)
, mFile(aFile)
, mCallback(nullptr)
{
MOZ_COUNT_CTOR(DeviceStorageRequestChild);
}
DeviceStorageRequestChild::~DeviceStorageRequestChild() {
MOZ_COUNT_DTOR(DeviceStorageRequestChild);
}
bool
DeviceStorageRequestChild::Recv__delete__(const DeviceStorageResponseValue& aValue)
{
if (mCallback) {
mCallback->RequestComplete();
mCallback = nullptr;
}
switch (aValue.type()) {
case DeviceStorageResponseValue::TErrorResponse:
{
ErrorResponse r = aValue;
mRequest->FireError(r.error());
break;
}
case DeviceStorageResponseValue::TSuccessResponse:
{
nsString compositePath;
mFile->GetCompositePath(compositePath);
AutoJSContext cx;
JS::Rooted<JS::Value> result(cx,
StringToJsval(mRequest->GetOwner(), compositePath));
mRequest->FireSuccess(result);
break;
}
case DeviceStorageResponseValue::TBlobResponse:
{
BlobResponse r = aValue;
BlobChild* actor = static_cast<BlobChild*>(r.blobChild());
nsCOMPtr<nsIDOMBlob> blob = actor->GetBlob();
nsCOMPtr<nsIDOMFile> file = do_QueryInterface(blob);
AutoJSContext cx;
JS::Rooted<JS::Value> result(cx,
InterfaceToJsval(mRequest->GetOwner(), file, &NS_GET_IID(nsIDOMFile)));
mRequest->FireSuccess(result);
break;
}
case DeviceStorageResponseValue::TFreeSpaceStorageResponse:
{
FreeSpaceStorageResponse r = aValue;
AutoJSContext cx;
JS::Rooted<JS::Value> result(cx, JS_NumberValue(double(r.freeBytes())));
mRequest->FireSuccess(result);
break;
}
case DeviceStorageResponseValue::TUsedSpaceStorageResponse:
{
UsedSpaceStorageResponse r = aValue;
AutoJSContext cx;
JS::Rooted<JS::Value> result(cx, JS_NumberValue(double(r.usedBytes())));
mRequest->FireSuccess(result);
break;
}
case DeviceStorageResponseValue::TAvailableStorageResponse:
{
AvailableStorageResponse r = aValue;
AutoJSContext cx;
JS::Rooted<JS::Value> result(
cx, StringToJsval(mRequest->GetOwner(), r.mountState()));
mRequest->FireSuccess(result);
break;
}
case DeviceStorageResponseValue::TEnumerationResponse:
{
EnumerationResponse r = aValue;
nsDOMDeviceStorageCursor* cursor = static_cast<nsDOMDeviceStorageCursor*>(mRequest.get());
uint32_t count = r.paths().Length();
for (uint32_t i = 0; i < count; i++) {
nsRefPtr<DeviceStorageFile> dsf = new DeviceStorageFile(r.type(),
r.paths()[i].storageName(),
r.rootdir(),
r.paths()[i].name());
cursor->mFiles.AppendElement(dsf);
}
nsCOMPtr<ContinueCursorEvent> event = new ContinueCursorEvent(cursor);
event->Continue();
break;
}
default:
{
NS_RUNTIMEABORT("not reached");
break;
}
}
return true;
}
void
DeviceStorageRequestChild::SetCallback(DeviceStorageRequestChildCallback *aCallback)
{
mCallback = aCallback;
}
} // namespace devicestorage
} // namespace dom
} // namespace mozilla