# HG changeset patch
# User Jet Villegas <jet@mozilla.com>
# Date 1363691791 -3600
# Node ID 1eadead0d6ccbcedf6c2ef47d8f56a022a8ba249
# Parent  b2636816c7fdd53110d877c57d7fcbb1c4396bdc
Bug 850805 - Implement DOMPoint/WebKitPoint

diff --git a/dom/bindings/Bindings.conf b/dom/bindings/Bindings.conf
--- a/dom/bindings/Bindings.conf
+++ b/dom/bindings/Bindings.conf
@@ -232,16 +232,20 @@ DOMInterfaces = {
 'DOMParser': {
     'nativeType': 'nsDOMParser',
 },
 
 'DocumentFragment': {
     'resultNotAddRefed': [ 'querySelector' ]
 },
 
+'DOMPoint': {
+    'nativeOwnership': 'refcounted',
+},
+
 'DOMSettableTokenList': {
     'nativeType': 'nsDOMSettableTokenList',
 },
 
 'DOMStringMap': {
     'nativeType': 'nsDOMStringMap'
 },
 
diff --git a/dom/webidl/DOMPoint.webidl b/dom/webidl/DOMPoint.webidl
new file mode 100644
--- /dev/null
+++ b/dom/webidl/DOMPoint.webidl
@@ -0,0 +1,15 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/.
+ */
+
+
+[Constructor(optional float x = 0, optional float y = 0),
+ NamedConstructor=WebKitPoint(optional float x = 0, optional float y = 0)]
+interface DOMPoint {
+
+  attribute float x;
+  attribute float y;
+};
+
diff --git a/dom/webidl/WebIDL.mk b/dom/webidl/WebIDL.mk
--- a/dom/webidl/WebIDL.mk
+++ b/dom/webidl/WebIDL.mk
@@ -39,16 +39,17 @@ webidl_files = \
   CSSValueList.webidl \
   DelayNode.webidl \
   Document.webidl \
   DocumentFragment.webidl \
   DocumentType.webidl \
   DOMCursor.webidl \
   DOMImplementation.webidl \
   DOMParser.webidl \
+  DOMPoint.webidl \
   DOMRequest.webidl \
   DOMSettableTokenList.webidl \
   DOMStringMap.webidl \
   DOMTokenList.webidl \
   DOMTransaction.webidl \
   DummyBinding.webidl \
   DynamicsCompressorNode.webidl \
   Element.webidl \
diff --git a/layout/style/DOMPoint.cpp b/layout/style/DOMPoint.cpp
new file mode 100644
--- /dev/null
+++ b/layout/style/DOMPoint.cpp
@@ -0,0 +1,62 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* 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/. */
+
+/* DOM object representing a CSS pixel's position. */
+
+#include "DOMPoint.h"
+#include "nsContentUtils.h"
+#include "mozilla/dom/DOMPointBinding.h"
+#include "mozilla/Preferences.h"
+
+namespace mozilla {
+namespace dom {
+
+/* static */ already_AddRefed<DOMPoint>
+DOMPoint::Constructor(const GlobalObject& aGlobal, float aX, float aY, ErrorResult& aError)
+{
+  if (!PrefEnabled()) {
+    aError.Throw(NS_ERROR_UNEXPECTED);
+    return nullptr;
+  }
+
+  nsRefPtr<DOMPoint> pt = new DOMPoint(aX, aY);
+
+  return pt.forget();
+}
+
+/* static */ already_AddRefed<DOMPoint>
+DOMPoint::WebKitPoint(const GlobalObject& aGlobal, float aX, float aY, ErrorResult& aError)
+{
+  return Constructor(aGlobal, aX, aY, aError);
+}
+
+DOMPoint::DOMPoint(float aX, float aY)
+: mX(aX), mY(aY)
+{
+  SetIsDOMBinding();
+}
+
+DOMPoint::~DOMPoint()
+{
+
+}
+
+JSObject*
+DOMPoint::WrapObject(JSContext *aCx, JSObject *aScope)
+{
+  return dom::DOMPointBinding::Wrap(aCx, aScope, this);
+}
+
+/* static */ bool
+DOMPoint::PrefEnabled()
+{
+  return Preferences::GetBool("layout.css.dompoint.enabled", true);
+}
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(DOMPoint)
+NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(DOMPoint, AddRef)
+NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(DOMPoint, Release)
+
+} // namespace dom
+} // namespace mozilla
diff --git a/layout/style/DOMPoint.h b/layout/style/DOMPoint.h
new file mode 100644
--- /dev/null
+++ b/layout/style/DOMPoint.h
@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+/* DOM object representing a CSS pixel's position. */
+
+#ifndef DOMPoint_h__
+#define DOMPoint_h__
+
+#include "nsAutoPtr.h"
+#include "mozilla/Attributes.h"
+// #include "nsISupports.h" //NonRefcountedDOMObject.h"
+#include "nsWrapperCache.h"
+ 
+namespace mozilla {
+
+class ErrorResult;
+
+namespace dom {
+
+class GlobalObject;
+
+class DOMPoint MOZ_FINAL : public nsWrapperCache
+{
+public:
+
+  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(DOMPoint)
+
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(DOMPoint)
+
+  static already_AddRefed<DOMPoint>
+  Constructor(const GlobalObject& aGlobal, float aX, float aY, ErrorResult& aError);
+  
+  static already_AddRefed<DOMPoint>
+  WebKitPoint(const GlobalObject& aGlobal, float aX, float aY, ErrorResult& aError);
+
+  DOMPoint(float aX, float aY);
+
+  ~DOMPoint();
+
+  // DOMPoint webidl interface
+  void SetX(float aX) // to-do: add error handling here
+  {
+    mX = aX;
+  }
+
+  void SetY(float aY)
+  {
+    mY = aY;
+  }
+
+  float X()
+  {
+    return mX;
+  }
+
+  float Y()
+  {
+    return mY;
+  }
+
+  nsISupports* GetParentObject() const
+  {
+    return nullptr;
+  }
+
+  static bool PrefEnabled();
+
+  JSObject* WrapObject(JSContext *cx, JSObject *scope);
+
+private:
+  float mX;  // to_do: move this to a real internal point struct
+  float mY;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // DOMPoint_h__
diff --git a/layout/style/Makefile.in b/layout/style/Makefile.in
--- a/layout/style/Makefile.in
+++ b/layout/style/Makefile.in
@@ -82,24 +82,26 @@ EXPORTS_mozilla/css = \
 		NameSpaceRule.h \
 		Rule.h \
 		StyleRule.h \
 		$(NULL)
 
 EXPORTS_mozilla/dom = \
 		CSS.h \
 		CSSValue.h \
+		DOMPoint.h \
 		$(NULL)
 
 CPPSRCS		= \
 		AnimationCommon.cpp \
 		CSS.cpp \
 		nsCSSAnonBoxes.cpp \
 		nsCSSDataBlock.cpp \
 		Declaration.cpp \
+		DOMPoint.cpp \
 		ErrorReporter.cpp \
 		nsCSSKeywords.cpp \
 		ImageLoader.cpp \
 		Loader.cpp \
 		nsAnimationManager.cpp \
 		nsCSSParser.cpp \
 		nsCSSProps.cpp \
 		nsCSSPseudoClasses.cpp \