1 files changed, 77 insertions, 0 deletions
diff --git a/dom/events/PaintRequest.h b/dom/events/PaintRequest.h
new file mode 100644
index 0000000000..72a1e69283
--- /dev/null
+++ b/dom/events/PaintRequest.h
@@ -0,0 +1,77 @@
+/* -*- 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_PaintRequest_h_
+#define mozilla_dom_PaintRequest_h_
+
+#include "nsPresContext.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/Event.h"
+#include "nsWrapperCache.h"
+
+namespace mozilla::dom {
+
+class DOMRect;
+
+class PaintRequest final : public nsISupports, public nsWrapperCache {
+ public:
+  explicit PaintRequest(Event* aParent) : mParent(aParent) {}
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(PaintRequest)
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+  Event* GetParentObject() const { return mParent; }
+
+  already_AddRefed<DOMRect> ClientRect();
+  void GetReason(nsAString& aResult) const { aResult.AssignLiteral("repaint"); }
+
+  void SetRequest(const nsRect& aRequest) { mRequest = aRequest; }
+
+ private:
+  ~PaintRequest() = default;
+
+  RefPtr<Event> mParent;
+  nsRect mRequest;
+};
+
+class PaintRequestList final : public nsISupports, public nsWrapperCache {
+ public:
+  explicit PaintRequestList(Event* aParent) : mParent(aParent) {}
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(PaintRequestList)
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+  nsISupports* GetParentObject() { return mParent; }
+
+  void Append(PaintRequest* aElement) { mArray.AppendElement(aElement); }
+
+  uint32_t Length() { return mArray.Length(); }
+
+  PaintRequest* Item(uint32_t aIndex) { return mArray.SafeElementAt(aIndex); }
+  PaintRequest* IndexedGetter(uint32_t aIndex, bool& aFound) {
+    aFound = aIndex < mArray.Length();
+    if (!aFound) {
+      return nullptr;
+    }
+    return mArray.ElementAt(aIndex);
+  }
+
+ private:
+  ~PaintRequestList() = default;
+
+  nsTArray<RefPtr<PaintRequest> > mArray;
+  RefPtr<Event> mParent;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_PaintRequest_h_