import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/events/TouchEvent.h

@@ -0,0 +1,145 @@
+/* -*- 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_TouchEvent_h_
+#define mozilla_dom_TouchEvent_h_
+
+#include "mozilla/dom/Touch.h"
+#include "mozilla/dom/TouchEventBinding.h"
+#include "mozilla/dom/UIEvent.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/EventForwards.h"
+#include "mozilla/TouchEvents.h"
+#include "nsJSEnvironment.h"
+#include "nsWrapperCache.h"
+
+class nsAString;
+
+namespace mozilla {
+namespace dom {
+
+class TouchList final : public nsISupports
+                      , public nsWrapperCache
+{
+public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TouchList)
+
+  explicit TouchList(nsISupports* aParent)
+    : mParent(aParent)
+  {
+    nsJSContext::LikelyShortLivingObjectCreated();
+  }
+  TouchList(nsISupports* aParent,
+            const WidgetTouchEvent::TouchArray& aTouches)
+    : mParent(aParent)
+    , mPoints(aTouches)
+  {
+    nsJSContext::LikelyShortLivingObjectCreated();
+  }
+
+  void Append(Touch* aPoint)
+  {
+    mPoints.AppendElement(aPoint);
+  }
+
+  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+  nsISupports* GetParentObject() const
+  {
+    return mParent;
+  }
+
+  static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal);
+
+  uint32_t Length() const
+  {
+    return mPoints.Length();
+  }
+  Touch* Item(uint32_t aIndex) const
+  {
+    return mPoints.SafeElementAt(aIndex);
+  }
+  Touch* IndexedGetter(uint32_t aIndex, bool& aFound) const
+  {
+    aFound = aIndex < mPoints.Length();
+    if (!aFound) {
+      return nullptr;
+    }
+    return mPoints[aIndex];
+  }
+
+protected:
+  ~TouchList() {}
+
+  nsCOMPtr<nsISupports> mParent;
+  WidgetTouchEvent::TouchArray mPoints;
+};
+
+class TouchEvent : public UIEvent
+{
+public:
+  TouchEvent(EventTarget* aOwner,
+             nsPresContext* aPresContext,
+             WidgetTouchEvent* aEvent);
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TouchEvent, UIEvent)
+
+  virtual JSObject* WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override
+  {
+    return TouchEventBinding::Wrap(aCx, this, aGivenProto);
+  }
+
+  already_AddRefed<TouchList>
+  CopyTouches(const Sequence<OwningNonNull<Touch>>& aTouches);
+
+  TouchList* Touches();
+  TouchList* TargetTouches();
+  TouchList* ChangedTouches();
+
+  bool AltKey();
+  bool MetaKey();
+  bool CtrlKey();
+  bool ShiftKey();
+
+  void InitTouchEvent(const nsAString& aType,
+                      bool aCanBubble,
+                      bool aCancelable,
+                      nsGlobalWindow* aView,
+                      int32_t aDetail,
+                      bool aCtrlKey,
+                      bool aAltKey,
+                      bool aShiftKey,
+                      bool aMetaKey,
+                      TouchList* aTouches,
+                      TouchList* aTargetTouches,
+                      TouchList* aChangedTouches);
+
+  static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal);
+  static bool PrefEnabled(nsIDocShell* aDocShell);
+
+  static already_AddRefed<Event> Constructor(const GlobalObject& aGlobal,
+                                             const nsAString& aType,
+                                             const TouchEventInit& aParam,
+                                             ErrorResult& aRv);
+
+protected:
+  ~TouchEvent() {}
+
+  RefPtr<TouchList> mTouches;
+  RefPtr<TouchList> mTargetTouches;
+  RefPtr<TouchList> mChangedTouches;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+already_AddRefed<mozilla::dom::TouchEvent>
+NS_NewDOMTouchEvent(mozilla::dom::EventTarget* aOwner,
+                    nsPresContext* aPresContext,
+                    mozilla::WidgetTouchEvent* aEvent);
+
+#endif // mozilla_dom_TouchEvent_h_