static bool
SendAsyncMessageToParent(void* aCallbackData,
const nsAString& aMessage,
const StructuredCloneData& aData)
{
TabChild* tabChild = static_cast<TabChild*>(aCallbackData);
ContentChild* cc = static_cast<ContentChild*>(tabChild->Manager());
ClonedMessageData data;
SerializedStructuredCloneBuffer& buffer = data.data();
buffer.data = aData.mData;
buffer.dataLength = aData.mDataLength;
const nsTArray<nsCOMPtr<nsIDOMBlob> >& blobs = aData.mClosure.mBlobs;
if (!blobs.IsEmpty()) {
InfallibleTArray<PBlobChild*>& blobChildList = data.blobsChild();
PRUint32 length = blobs.Length();
blobChildList.SetCapacity(length);
for (PRUint32 i = 0; i < length; ++i) {
BlobChild* blobChild = cc->GetOrCreateActorForBlob(blobs[i]);
if (!blobChild) {
return false;
}
blobChildList.AppendElement(blobChild);
}
}
return tabChild->SendAsyncMessage(nsString(aMessage), data);
}
nsresult
nsDragServiceProxy::InvokeDragSessionImpl(nsIArray* aArrayTransferables,
nsIScriptableRegion* aRegion,
uint32_t aActionType)
{
nsCOMPtr<nsIDocument> doc = do_QueryInterface(mSourceDocument);
NS_ENSURE_STATE(doc->GetDocShell());
TabChild* child = TabChild::GetFrom(doc->GetDocShell());
NS_ENSURE_STATE(child);
nsTArray<mozilla::dom::IPCDataTransfer> dataTransfers;
nsContentUtils::TransferablesToIPCTransferables(aArrayTransferables,
dataTransfers,
false,
child->Manager(),
nullptr);
LayoutDeviceIntRect dragRect;
if (mHasImage || mSelection) {
nsPresContext* pc;
RefPtr<mozilla::gfx::SourceSurface> surface;
DrawDrag(mSourceNode, aRegion, mScreenPosition, &dragRect, &surface, &pc);
if (surface) {
RefPtr<mozilla::gfx::DataSourceSurface> dataSurface =
surface->GetDataSurface();
if (dataSurface) {
size_t length;
int32_t stride;
Shmem surfaceData;
nsContentUtils::GetSurfaceData(dataSurface, &length, &stride, child,
&surfaceData);
// Save the surface data to shared memory.
if (!surfaceData.IsReadable() || !surfaceData.get<char>()) {
NS_WARNING("Failed to create shared memory for drag session.");
return NS_ERROR_FAILURE;
}
mozilla::Unused <<
child->SendInvokeDragSession(dataTransfers, aActionType, surfaceData,
stride, static_cast<uint8_t>(dataSurface->GetFormat()),
dragRect);
StartDragSession();
return NS_OK;
}
}
}
mozilla::Unused << child->SendInvokeDragSession(dataTransfers, aActionType,
mozilla::void_t(), 0, 0, dragRect);
StartDragSession();
return NS_OK;
}