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diff --git a/widget/headless/HeadlessKeyBindingsCocoa.mm b/widget/headless/HeadlessKeyBindingsCocoa.mm
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+/* -*- 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 "HeadlessKeyBindings.h"
+#import <Cocoa/Cocoa.h>
+#include "nsCocoaUtils.h"
+#include "NativeKeyBindings.h"
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/NativeKeyBindingsType.h"
+#include "mozilla/WritingModes.h"
+
+namespace mozilla {
+namespace widget {
+
+HeadlessKeyBindings& HeadlessKeyBindings::GetInstance() {
+ static UniquePtr<HeadlessKeyBindings> sInstance;
+ if (!sInstance) {
+ sInstance.reset(new HeadlessKeyBindings());
+ ClearOnShutdown(&sInstance);
+ }
+ return *sInstance;
+}
+
+nsresult HeadlessKeyBindings::AttachNativeKeyEvent(WidgetKeyboardEvent& aEvent) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ aEvent.mNativeKeyEvent = nsCocoaUtils::MakeNewCococaEventFromWidgetEvent(aEvent, 0, nil);
+
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+void HeadlessKeyBindings::GetEditCommands(NativeKeyBindingsType aType,
+ const WidgetKeyboardEvent& aEvent,
+ const Maybe<WritingMode>& aWritingMode,
+ nsTArray<CommandInt>& aCommands) {
+ // Convert the widget keyboard into a cocoa event so it can be translated
+ // into commands in the NativeKeyBindings.
+ WidgetKeyboardEvent modifiedEvent(aEvent);
+ modifiedEvent.mNativeKeyEvent = nsCocoaUtils::MakeNewCococaEventFromWidgetEvent(aEvent, 0, nil);
+
+ NativeKeyBindings* keyBindings = NativeKeyBindings::GetInstance(aType);
+ keyBindings->GetEditCommands(modifiedEvent, aWritingMode, aCommands);
+}
+
+} // namespace widget
+} // namespace mozilla