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3d5bc9089c
After Bug 1781129, aChild is no longer needed to allocate Shmem, but aParent is still needed to grant access for file in https://searchfox.org/mozilla-central/rev/b579290e6b830d1b3f0a941203b0c0e1e56c42a3/dom/base/nsContentUtils.cpp#8171-8182. Differential Revision: https://phabricator.services.mozilla.com/D170063
97 lines
3.4 KiB
C++
97 lines
3.4 KiB
C++
/* -*- 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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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/BrowserChild.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/net/CookieJarSettings.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/Unused.h"
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#include "nsContentUtils.h"
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using mozilla::CSSIntRegion;
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using mozilla::LayoutDeviceIntRect;
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using mozilla::Maybe;
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using mozilla::Nothing;
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using mozilla::Some;
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using mozilla::dom::BrowserChild;
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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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using mozilla::ipc::Shmem;
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nsDragServiceProxy::nsDragServiceProxy() = default;
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nsDragServiceProxy::~nsDragServiceProxy() = default;
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nsresult nsDragServiceProxy::InvokeDragSessionImpl(
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nsIArray* aArrayTransferables, const Maybe<CSSIntRegion>& aRegion,
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uint32_t aActionType) {
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NS_ENSURE_STATE(mSourceDocument->GetDocShell());
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BrowserChild* child = BrowserChild::GetFrom(mSourceDocument->GetDocShell());
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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, nullptr);
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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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nsCOMPtr<nsIContentSecurityPolicy> csp;
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if (mSourceDocument) {
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csp = mSourceDocument->GetCsp();
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// XXX why do we need this here? Shouldn't they be set properly in
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// nsBaseDragService already?
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mSourceWindowContext = mSourceDocument->GetWindowContext();
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mSourceTopWindowContext = mSourceWindowContext
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? mSourceWindowContext->TopWindowContext()
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: nullptr;
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}
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nsCOMPtr<nsICookieJarSettings> cookieJarSettings;
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cookieJarSettings = mSourceDocument->CookieJarSettings();
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mozilla::net::CookieJarSettingsArgs csArgs;
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mozilla::net::CookieJarSettings::Cast(cookieJarSettings)->Serialize(csArgs);
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LayoutDeviceIntRect dragRect;
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if (mHasImage || mSelection) {
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nsPresContext* pc;
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RefPtr<SourceSurface> surface;
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DrawDrag(mSourceNode, aRegion, mScreenPosition, &dragRect, &surface, &pc);
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if (surface) {
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RefPtr<DataSourceSurface> dataSurface = surface->GetDataSurface();
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if (dataSurface) {
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size_t length;
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int32_t stride;
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auto surfaceData =
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nsContentUtils::GetSurfaceData(*dataSurface, &length, &stride);
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if (surfaceData.isNothing()) {
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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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mozilla::Unused << child->SendInvokeDragSession(
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std::move(dataTransfers), aActionType, std::move(surfaceData),
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stride, dataSurface->GetFormat(), dragRect, principal, csp, csArgs,
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mSourceWindowContext, mSourceTopWindowContext);
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StartDragSession();
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return NS_OK;
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}
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}
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}
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mozilla::Unused << child->SendInvokeDragSession(
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std::move(dataTransfers), aActionType, Nothing(), 0,
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static_cast<SurfaceFormat>(0), dragRect, principal, csp, csArgs,
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mSourceWindowContext, mSourceTopWindowContext);
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StartDragSession();
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return NS_OK;
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}
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