1 files changed, 113 insertions, 0 deletions
diff --git a/widget/ClipboardWriteRequestParent.cpp b/widget/ClipboardWriteRequestParent.cpp
new file mode 100644
index 0000000000..751befbe05
--- /dev/null
+++ b/widget/ClipboardWriteRequestParent.cpp
@@ -0,0 +1,113 @@
+/* -*- Mode: C++; tab-width: 2; 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 "mozilla/ClipboardWriteRequestParent.h"
+
+#include "mozilla/dom/ContentParent.h"
+#include "mozilla/net/CookieJarSettings.h"
+#include "nsComponentManagerUtils.h"
+#include "nsIClipboard.h"
+#include "nsITransferable.h"
+#include "nsWidgetsCID.h"
+
+static NS_DEFINE_CID(kCClipboardCID, NS_CLIPBOARD_CID);
+
+using mozilla::dom::ContentParent;
+using mozilla::ipc::IPCResult;
+
+namespace mozilla {
+
+NS_IMPL_ISUPPORTS(ClipboardWriteRequestParent, nsIAsyncClipboardRequestCallback)
+
+ClipboardWriteRequestParent::ClipboardWriteRequestParent(
+    ContentParent* aManager)
+    : mManager(aManager) {}
+
+ClipboardWriteRequestParent::~ClipboardWriteRequestParent() = default;
+
+nsresult ClipboardWriteRequestParent::Init(const int32_t& aClipboardType) {
+  nsCOMPtr<nsIClipboard> clipboard(do_GetService(kCClipboardCID));
+  if (!clipboard) {
+    Unused << PClipboardWriteRequestParent::Send__delete__(this,
+                                                           NS_ERROR_FAILURE);
+    return NS_ERROR_FAILURE;
+  }
+
+  nsresult rv = clipboard->AsyncSetData(aClipboardType, this,
+                                        getter_AddRefs(mAsyncSetClipboardData));
+  if (NS_FAILED(rv)) {
+    Unused << PClipboardWriteRequestParent::Send__delete__(this, rv);
+    return rv;
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP ClipboardWriteRequestParent::OnComplete(nsresult aResult) {
+  nsCOMPtr<nsIAsyncSetClipboardData> clipboardData =
+      std::move(mAsyncSetClipboardData);
+  if (clipboardData) {
+    Unused << PClipboardWriteRequestParent::Send__delete__(this, aResult);
+  }
+  return NS_OK;
+}
+
+IPCResult ClipboardWriteRequestParent::RecvSetData(
+    const IPCTransferable& aTransferable) {
+  if (!mManager->ValidatePrincipal(
+          aTransferable.requestingPrincipal(),
+          {ContentParent::ValidatePrincipalOptions::AllowNullPtr,
+           ContentParent::ValidatePrincipalOptions::AllowExpanded,
+           ContentParent::ValidatePrincipalOptions::AllowSystem})) {
+    ContentParent::LogAndAssertFailedPrincipalValidationInfo(
+        aTransferable.requestingPrincipal(), __func__);
+  }
+
+  if (!mAsyncSetClipboardData) {
+    return IPC_OK();
+  }
+
+  nsresult rv = NS_ERROR_FAILURE;
+  nsCOMPtr<nsITransferable> trans =
+      do_CreateInstance("@mozilla.org/widget/transferable;1", &rv);
+  if (NS_FAILED(rv)) {
+    mAsyncSetClipboardData->Abort(rv);
+    return IPC_OK();
+  }
+
+  trans->Init(nullptr);
+  rv = nsContentUtils::IPCTransferableToTransferable(
+      aTransferable, true /* aAddDataFlavor */, trans,
+      true /* aFilterUnknownFlavors */);
+  if (NS_FAILED(rv)) {
+    mAsyncSetClipboardData->Abort(rv);
+    return IPC_OK();
+  }
+
+  mAsyncSetClipboardData->SetData(trans, nullptr);
+  return IPC_OK();
+}
+
+IPCResult ClipboardWriteRequestParent::Recv__delete__(nsresult aReason) {
+#ifndef FUZZING_SNAPSHOT
+  MOZ_DIAGNOSTIC_ASSERT(NS_FAILED(aReason));
+#endif
+  nsCOMPtr<nsIAsyncSetClipboardData> clipboardData =
+      std::move(mAsyncSetClipboardData);
+  if (clipboardData) {
+    clipboardData->Abort(aReason);
+  }
+  return IPC_OK();
+}
+
+void ClipboardWriteRequestParent::ActorDestroy(ActorDestroyReason aReason) {
+  nsCOMPtr<nsIAsyncSetClipboardData> clipboardData =
+      std::move(mAsyncSetClipboardData);
+  if (clipboardData) {
+    clipboardData->Abort(NS_ERROR_ABORT);
+  }
+}
+
+}  // namespace mozilla