2015-04-08 18:48:11 +00:00
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsDragServiceProxy.h"
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2019-01-02 13:05:23 +00:00
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#include "mozilla/dom/Document.h"
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2015-04-08 18:48:11 +00:00
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#include "nsISupportsPrimitives.h"
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#include "mozilla/dom/TabChild.h"
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#include "mozilla/gfx/2D.h"
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2015-04-14 10:50:59 +00:00
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#include "mozilla/UniquePtr.h"
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2016-08-23 04:09:32 +00:00
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#include "mozilla/Unused.h"
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2015-04-08 18:48:11 +00:00
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#include "nsContentUtils.h"
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2018-11-14 17:03:36 +00:00
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using mozilla::CSSIntRegion;
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2016-06-15 12:49:13 +00:00
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using mozilla::LayoutDeviceIntRect;
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using mozilla::Maybe;
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using mozilla::dom::OptionalShmem;
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using mozilla::dom::TabChild;
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2018-11-14 17:03:36 +00:00
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using mozilla::gfx::DataSourceSurface;
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using mozilla::gfx::SourceSurface;
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using mozilla::gfx::SurfaceFormat;
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2017-10-12 16:03:35 +00:00
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using mozilla::ipc::Shmem;
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2016-06-15 12:49:13 +00:00
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2015-04-08 18:48:11 +00:00
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nsDragServiceProxy::nsDragServiceProxy() {}
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nsDragServiceProxy::~nsDragServiceProxy() {}
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2016-10-18 18:56:20 +00:00
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nsresult nsDragServiceProxy::InvokeDragSessionImpl(
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2018-08-07 13:32:08 +00:00
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nsIArray* aArrayTransferables, const Maybe<CSSIntRegion>& aRegion,
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2015-10-21 09:16:40 +00:00
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uint32_t aActionType) {
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2018-05-11 17:46:15 +00:00
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NS_ENSURE_STATE(mSourceDocument->GetDocShell());
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TabChild* child = TabChild::GetFrom(mSourceDocument->GetDocShell());
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2015-04-08 18:48:11 +00:00
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NS_ENSURE_STATE(child);
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nsTArray<mozilla::dom::IPCDataTransfer> dataTransfers;
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nsContentUtils::TransferablesToIPCTransferables(
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aArrayTransferables, dataTransfers, false, child->Manager(), nullptr);
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2019-01-04 03:16:46 +00:00
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nsCOMPtr<nsIPrincipal> principal;
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if (mSourceNode) {
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principal = mSourceNode->NodePrincipal();
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}
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2018-02-09 01:43:53 +00:00
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2016-10-19 19:01:39 +00:00
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LayoutDeviceIntRect dragRect;
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2015-04-08 18:48:11 +00:00
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if (mHasImage || mSelection) {
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nsPresContext* pc;
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2018-11-14 17:03:36 +00:00
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RefPtr<SourceSurface> surface;
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2016-10-19 19:01:39 +00:00
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DrawDrag(mSourceNode, aRegion, mScreenPosition, &dragRect, &surface, &pc);
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2015-04-08 18:48:11 +00:00
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if (surface) {
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2018-11-14 17:03:36 +00:00
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RefPtr<DataSourceSurface> dataSurface = surface->GetDataSurface();
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2016-05-03 14:04:21 +00:00
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if (dataSurface) {
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size_t length;
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int32_t stride;
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2017-05-15 10:15:48 +00:00
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Maybe<Shmem> maybeShm = nsContentUtils::GetSurfaceData(
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dataSurface, &length, &stride, child);
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if (maybeShm.isNothing()) {
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return NS_ERROR_FAILURE;
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}
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auto surfaceData = maybeShm.value();
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2016-06-15 12:49:13 +00:00
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// Save the surface data to shared memory.
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if (!surfaceData.IsReadable() || !surfaceData.get<char>()) {
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NS_WARNING("Failed to create shared memory for drag session.");
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return NS_ERROR_FAILURE;
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}
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2015-04-14 10:50:59 +00:00
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2016-06-15 12:49:13 +00:00
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mozilla::Unused << child->SendInvokeDragSession(
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dataTransfers, aActionType, surfaceData, stride,
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2019-01-04 03:16:46 +00:00
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dataSurface->GetFormat(), dragRect, IPC::Principal(principal));
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2016-05-03 14:04:21 +00:00
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StartDragSession();
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return NS_OK;
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}
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2015-04-08 18:48:11 +00:00
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}
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}
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2018-11-14 17:03:36 +00:00
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mozilla::Unused << child->SendInvokeDragSession(
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dataTransfers, aActionType, mozilla::void_t(), 0,
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2019-01-04 03:16:46 +00:00
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static_cast<SurfaceFormat>(0), dragRect, IPC::Principal(principal));
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2015-04-08 18:48:11 +00:00
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StartDragSession();
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return NS_OK;
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}
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