1 files changed, 105 insertions, 0 deletions
diff --git a/dom/events/Touch.h b/dom/events/Touch.h
new file mode 100644
index 0000000000..43c5534808
--- /dev/null
+++ b/dom/events/Touch.h
@@ -0,0 +1,105 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef mozilla_dom_Touch_h_
+#define mozilla_dom_Touch_h_
+
+#include "mozilla/Attributes.h"
+#include "mozilla/EventForwards.h"
+#include "mozilla/MouseEvents.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/TouchBinding.h"
+#include "nsWrapperCache.h"
+#include "Units.h"
+
+class nsPresContext;
+
+namespace mozilla::dom {
+
+class EventTarget;
+
+class Touch final : public nsISupports,
+                    public nsWrapperCache,
+                    public WidgetPointerHelper {
+ public:
+  static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal);
+
+  static already_AddRefed<Touch> Constructor(const GlobalObject& aGlobal,
+                                             const TouchInit& aParam);
+
+  Touch(EventTarget* aTarget, int32_t aIdentifier, int32_t aPageX,
+        int32_t aPageY, int32_t aScreenX, int32_t aScreenY, int32_t aClientX,
+        int32_t aClientY, int32_t aRadiusX, int32_t aRadiusY,
+        float aRotationAngle, float aForce);
+  Touch(int32_t aIdentifier, LayoutDeviceIntPoint aPoint,
+        LayoutDeviceIntPoint aRadius, float aRotationAngle, float aForce);
+  Touch(int32_t aIdentifier, LayoutDeviceIntPoint aPoint,
+        LayoutDeviceIntPoint aRadius, float aRotationAngle, float aForce,
+        int32_t aTiltX, int32_t aTiltY, int32_t aTwist);
+  Touch(const Touch& aOther);
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Touch)
+
+  void InitializePoints(nsPresContext* aPresContext, WidgetEvent* aEvent);
+
+  // Note, this sets both mOriginalTarget and mTarget.
+  void SetTouchTarget(EventTarget* aTarget);
+
+  bool Equals(Touch* aTouch) const;
+
+  // Update this touch's touch area to be the same as aTouch
+  void SetSameAs(const Touch* aTouch);
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+  nsIGlobalObject* GetParentObject() const;
+
+  // WebIDL
+  int32_t Identifier() const { return mIdentifier; }
+  EventTarget* GetTarget() const;
+  int32_t ScreenX(CallerType aCallerType) const;
+  int32_t ScreenY(CallerType aCallerType) const;
+  int32_t ClientX() const { return mClientPoint.x; }
+  int32_t ClientY() const { return mClientPoint.y; }
+  int32_t PageX() const { return mPagePoint.x; }
+  int32_t PageY() const { return mPagePoint.y; }
+  int32_t RadiusX(CallerType aCallerType) const;
+  int32_t RadiusY(CallerType aCallerType) const;
+  float RotationAngle(CallerType aCallerType) const;
+  float Force(CallerType aCallerType) const;
+
+  EventTarget* GetOriginalTarget() const;
+
+  nsCOMPtr<EventTarget> mOriginalTarget;
+  nsCOMPtr<EventTarget> mTarget;
+  LayoutDeviceIntPoint mRefPoint;
+  bool mChanged;
+
+  // Is this touch instance being suppressed to dispatch touch event to content.
+  // We can't remove touch instance from WidgetTouchEvent::mTouches because we
+  // still need it when dispatching pointer events.
+  bool mIsTouchEventSuppressed;
+
+  uint32_t mMessage;
+  int32_t mIdentifier;
+  CSSIntPoint mPagePoint;
+  CSSIntPoint mClientPoint;
+  CSSIntPoint mScreenPoint;
+  LayoutDeviceIntPoint mRadius;
+  float mRotationAngle;
+  float mForce;
+
+ protected:
+  ~Touch();
+
+  bool mPointsInitialized;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_Touch_h_