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-rw-r--r--widget/nsDragServiceProxy.cpp96
1 files changed, 96 insertions, 0 deletions
diff --git a/widget/nsDragServiceProxy.cpp b/widget/nsDragServiceProxy.cpp
new file mode 100644
index 0000000000..cb273a89fa
--- /dev/null
+++ b/widget/nsDragServiceProxy.cpp
@@ -0,0 +1,96 @@
+/* -*- 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 "mozilla/dom/Document.h"
+#include "mozilla/dom/BrowserChild.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/net/CookieJarSettings.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/Unused.h"
+#include "nsContentUtils.h"
+
+using mozilla::CSSIntRegion;
+using mozilla::LayoutDeviceIntRect;
+using mozilla::Maybe;
+using mozilla::Nothing;
+using mozilla::Some;
+using mozilla::dom::BrowserChild;
+using mozilla::gfx::DataSourceSurface;
+using mozilla::gfx::SourceSurface;
+using mozilla::gfx::SurfaceFormat;
+using mozilla::ipc::Shmem;
+
+nsDragServiceProxy::nsDragServiceProxy() = default;
+
+nsDragServiceProxy::~nsDragServiceProxy() = default;
+
+nsresult nsDragServiceProxy::InvokeDragSessionImpl(
+ nsIArray* aArrayTransferables, const Maybe<CSSIntRegion>& aRegion,
+ uint32_t aActionType) {
+ NS_ENSURE_STATE(mSourceDocument->GetDocShell());
+ BrowserChild* child = BrowserChild::GetFrom(mSourceDocument->GetDocShell());
+ NS_ENSURE_STATE(child);
+ nsTArray<mozilla::dom::IPCTransferableData> transferables;
+ nsContentUtils::TransferablesToIPCTransferableDatas(
+ aArrayTransferables, transferables, false, nullptr);
+
+ nsCOMPtr<nsIPrincipal> principal;
+ if (mSourceNode) {
+ principal = mSourceNode->NodePrincipal();
+ }
+
+ nsCOMPtr<nsIContentSecurityPolicy> csp;
+ if (mSourceDocument) {
+ csp = mSourceDocument->GetCsp();
+ // XXX why do we need this here? Shouldn't they be set properly in
+ // nsBaseDragService already?
+ mSourceWindowContext = mSourceDocument->GetWindowContext();
+ mSourceTopWindowContext = mSourceWindowContext
+ ? mSourceWindowContext->TopWindowContext()
+ : nullptr;
+ }
+
+ nsCOMPtr<nsICookieJarSettings> cookieJarSettings;
+ cookieJarSettings = mSourceDocument->CookieJarSettings();
+ mozilla::net::CookieJarSettingsArgs csArgs;
+ mozilla::net::CookieJarSettings::Cast(cookieJarSettings)->Serialize(csArgs);
+
+ LayoutDeviceIntRect dragRect;
+ if (mHasImage || mSelection) {
+ nsPresContext* pc;
+ RefPtr<SourceSurface> surface;
+ DrawDrag(mSourceNode, aRegion, mScreenPosition, &dragRect, &surface, &pc);
+
+ if (surface) {
+ RefPtr<DataSourceSurface> dataSurface = surface->GetDataSurface();
+ if (dataSurface) {
+ size_t length;
+ int32_t stride;
+ auto surfaceData =
+ nsContentUtils::GetSurfaceData(*dataSurface, &length, &stride);
+ if (surfaceData.isNothing()) {
+ NS_WARNING("Failed to create shared memory for drag session.");
+ return NS_ERROR_FAILURE;
+ }
+
+ mozilla::Unused << child->SendInvokeDragSession(
+ std::move(transferables), aActionType, std::move(surfaceData),
+ stride, dataSurface->GetFormat(), dragRect, principal, csp, csArgs,
+ mSourceWindowContext, mSourceTopWindowContext);
+ StartDragSession();
+ return NS_OK;
+ }
+ }
+ }
+
+ mozilla::Unused << child->SendInvokeDragSession(
+ std::move(transferables), aActionType, Nothing(), 0,
+ static_cast<SurfaceFormat>(0), dragRect, principal, csp, csArgs,
+ mSourceWindowContext, mSourceTopWindowContext);
+ StartDragSession();
+ return NS_OK;
+}