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/* -*- Mode: C++; tab-width: 4; 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 "nsDragServiceProxy.h"
#include "nsIDocument.h"
#include "nsISupportsPrimitives.h"
#include "mozilla/dom/TabChild.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/UniquePtr.h"
#include "mozilla/Unused.h"
#include "nsContentUtils.h"
using mozilla::ipc::Shmem;
using mozilla::dom::TabChild;
using mozilla::dom::OptionalShmem;
NS_IMPL_ISUPPORTS_INHERITED0(nsDragServiceProxy, nsBaseDragService)
nsDragServiceProxy::nsDragServiceProxy()
{
}
nsDragServiceProxy::~nsDragServiceProxy()
{
}
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;
}
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