Add m-esr52 at 52.6.0

1 files changed, 63 insertions, 0 deletions

diff --git a/layout/base/TouchManager.h b/layout/base/TouchManager.h
new file mode 100644
index 000000000..7c0d51734
--- /dev/null
+++ b/layout/base/TouchManager.h
@@ -0,0 +1,63 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=2 sw=2 et tw=78:
+ * 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/.
+ */
+
+/* Description of TouchManager class.
+ * Incapsulate code related with work of touch events.
+ */
+
+#ifndef TouchManager_h_
+#define TouchManager_h_
+
+#include "mozilla/BasicEvents.h"
+#include "mozilla/dom/Touch.h"
+#include "mozilla/TouchEvents.h"
+#include "nsRefPtrHashtable.h"
+
+class PresShell;
+class nsIDocument;
+
+namespace mozilla {
+
+class TouchManager {
+public:
+  // Initialize and release static variables
+  static void InitializeStatics();
+  static void ReleaseStatics();
+
+  void Init(PresShell* aPresShell, nsIDocument* aDocument);
+  void Destroy();
+
+  bool PreHandleEvent(mozilla::WidgetEvent* aEvent,
+                      nsEventStatus* aStatus,
+                      bool& aTouchIsNew,
+                      bool& aIsHandlingUserInput,
+                      nsCOMPtr<nsIContent>& aCurrentEventContent);
+
+  static already_AddRefed<nsIContent> GetAnyCapturedTouchTarget();
+  static bool HasCapturedTouch(int32_t aId);
+  static already_AddRefed<dom::Touch> GetCapturedTouch(int32_t aId);
+
+private:
+  void EvictTouches();
+  static void EvictTouchPoint(RefPtr<dom::Touch>& aTouch,
+                              nsIDocument* aLimitToDocument = nullptr);
+  static void AppendToTouchList(WidgetTouchEvent::TouchArray* aTouchList);
+
+  RefPtr<PresShell>   mPresShell;
+  nsCOMPtr<nsIDocument> mDocument;
+
+  struct TouchInfo
+  {
+    RefPtr<mozilla::dom::Touch> mTouch;
+    nsCOMPtr<nsIContent> mNonAnonymousTarget;
+  };
+  static nsDataHashtable<nsUint32HashKey, TouchInfo>* sCaptureTouchList;
+};
+
+} // namespace mozilla
+
+#endif /* !defined(TouchManager_h_) */