Add m-esr52 at 52.6.0

1 files changed, 215 insertions, 0 deletions

diff --git a/dom/base/DOMRect.h b/dom/base/DOMRect.h
new file mode 100644
index 0000000000..d3d1030007
--- /dev/null
+++ b/dom/base/DOMRect.h
@@ -0,0 +1,215 @@
+/* -*- 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_DOMRECT_H_
+#define MOZILLA_DOMRECT_H_
+
+#include "nsIDOMClientRect.h"
+#include "nsIDOMClientRectList.h"
+#include "nsTArray.h"
+#include "nsCOMPtr.h"
+#include "nsWrapperCache.h"
+#include "nsCycleCollectionParticipant.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/ErrorResult.h"
+#include <algorithm>
+
+struct nsRect;
+
+namespace mozilla {
+namespace dom {
+
+class DOMRectReadOnly : public nsISupports
+                      , public nsWrapperCache
+{
+protected:
+  virtual ~DOMRectReadOnly() {}
+
+public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMRectReadOnly)
+
+  explicit DOMRectReadOnly(nsISupports* aParent)
+    : mParent(aParent)
+  {
+  }
+
+  nsISupports* GetParentObject() const
+  {
+    MOZ_ASSERT(mParent);
+    return mParent;
+  }
+  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+  virtual double X() const = 0;
+  virtual double Y() const = 0;
+  virtual double Width() const = 0;
+  virtual double Height() const = 0;
+
+  double Left() const
+  {
+    double x = X(), w = Width();
+    return std::min(x, x + w);
+  }
+  double Top() const
+  {
+    double y = Y(), h = Height();
+    return std::min(y, y + h);
+  }
+  double Right() const
+  {
+    double x = X(), w = Width();
+    return std::max(x, x + w);
+  }
+  double Bottom() const
+  {
+    double y = Y(), h = Height();
+    return std::max(y, y + h);
+  }
+
+protected:
+  nsCOMPtr<nsISupports> mParent;
+};
+
+class DOMRect final : public DOMRectReadOnly
+                    , public nsIDOMClientRect
+{
+public:
+  explicit DOMRect(nsISupports* aParent, double aX = 0, double aY = 0,
+                   double aWidth = 0, double aHeight = 0)
+    : DOMRectReadOnly(aParent)
+    , mX(aX)
+    , mY(aY)
+    , mWidth(aWidth)
+    , mHeight(aHeight)
+  {
+  }
+  
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_NSIDOMCLIENTRECT
+
+  static already_AddRefed<DOMRect>
+  Constructor(const GlobalObject& aGlobal, ErrorResult& aRV);
+  static already_AddRefed<DOMRect>
+  Constructor(const GlobalObject& aGlobal, double aX, double aY,
+              double aWidth, double aHeight, ErrorResult& aRV);
+
+  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+  void SetRect(float aX, float aY, float aWidth, float aHeight) {
+    mX = aX; mY = aY; mWidth = aWidth; mHeight = aHeight;
+  }
+  void SetLayoutRect(const nsRect& aLayoutRect);
+
+  virtual double X() const override
+  {
+    return mX;
+  }
+  virtual double Y() const override
+  {
+    return mY;
+  }
+  virtual double Width() const override
+  {
+    return mWidth;
+  }
+  virtual double Height() const override
+  {
+    return mHeight;
+  }
+
+  void SetX(double aX)
+  {
+    mX = aX;
+  }
+  void SetY(double aY)
+  {
+    mY = aY;
+  }
+  void SetWidth(double aWidth)
+  {
+    mWidth = aWidth;
+  }
+  void SetHeight(double aHeight)
+  {
+    mHeight = aHeight;
+  }
+
+protected:
+  double mX, mY, mWidth, mHeight;
+
+private:
+  ~DOMRect() {};
+};
+
+class DOMRectList final : public nsIDOMClientRectList,
+                          public nsWrapperCache
+{
+  ~DOMRectList() {}
+
+public:
+  explicit DOMRectList(nsISupports *aParent) : mParent(aParent)
+  {
+  }
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMRectList)
+
+  NS_DECL_NSIDOMCLIENTRECTLIST
+  
+  virtual JSObject* WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override;
+
+  nsISupports* GetParentObject()
+  {
+    return mParent;
+  }
+
+  void Append(DOMRect* aElement) { mArray.AppendElement(aElement); }
+
+  static DOMRectList* FromSupports(nsISupports* aSupports)
+  {
+#ifdef DEBUG
+    {
+      nsCOMPtr<nsIDOMClientRectList> list_qi = do_QueryInterface(aSupports);
+
+      // If this assertion fires the QI implementation for the object in
+      // question doesn't use the nsIDOMClientRectList pointer as the nsISupports
+      // pointer. That must be fixed, or we'll crash...
+      NS_ASSERTION(list_qi == static_cast<nsIDOMClientRectList*>(aSupports),
+                   "Uh, fix QI!");
+    }
+#endif
+
+    return static_cast<DOMRectList*>(aSupports);
+  }
+
+  uint32_t Length()
+  {
+    return mArray.Length();
+  }
+  DOMRect* Item(uint32_t aIndex)
+  {
+    return mArray.SafeElementAt(aIndex);
+  }
+  DOMRect* IndexedGetter(uint32_t aIndex, bool& aFound)
+  {
+    aFound = aIndex < mArray.Length();
+    if (!aFound) {
+      return nullptr;
+    }
+    return mArray[aIndex];
+  }
+
+protected:
+  nsTArray<RefPtr<DOMRect> > mArray;
+  nsCOMPtr<nsISupports> mParent;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif /*MOZILLA_DOMRECT_H_*/