Bug 591737 - Add DetailsFrame. r=bz

dom/base/nsGkAtomList.h

@@ -1959,6 +1959,7 @@ GK_ATOM(columnSetFrame, "ColumnSetFrame")
 GK_ATOM(comboboxControlFrame, "ComboboxControlFrame")
 GK_ATOM(comboboxDisplayFrame, "ComboboxDisplayFrame")
 GK_ATOM(deckFrame, "DeckFrame")
+GK_ATOM(detailsFrame, "DetailsFrame")
 GK_ATOM(fieldSetFrame, "FieldSetFrame")
 GK_ATOM(flexContainerFrame, "FlexContainerFrame")
 GK_ATOM(formControlFrame, "FormControlFrame") // radio or checkbox

layout/generic/DetailsFrame.cpp

@@ -0,0 +1,43 @@
+/* -*- 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/. */
+
+#include "DetailsFrame.h"
+
+#include "mozilla/Attributes.h"
+#include "mozilla/dom/HTMLDetailsElement.h"
+#include "mozilla/dom/HTMLSummaryElement.h"
+#include "nsContentUtils.h"
+#include "nsPlaceholderFrame.h"
+#include "nsTextNode.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+NS_IMPL_FRAMEARENA_HELPERS(DetailsFrame)
+
+NS_QUERYFRAME_HEAD(DetailsFrame)
+  NS_QUERYFRAME_ENTRY(DetailsFrame)
+NS_QUERYFRAME_TAIL_INHERITING(nsBlockFrame)
+
+DetailsFrame*
+NS_NewDetailsFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
+{
+  return new (aPresShell) DetailsFrame(aContext);
+}
+
+DetailsFrame::DetailsFrame(nsStyleContext* aContext)
+  : nsBlockFrame(aContext)
+{
+}
+
+DetailsFrame::~DetailsFrame()
+{
+}
+
+nsIAtom*
+DetailsFrame::GetType() const
+{
+  return nsGkAtoms::detailsFrame;
+}

layout/generic/DetailsFrame.h

@@ -0,0 +1,41 @@
+/* -*- 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 DetailsFrame_h
+#define DetailsFrame_h
+
+#include "nsBlockFrame.h"
+
+class nsContainerFrame;
+class nsStyleContext;
+
+// DetailsFrame is generated by HTMLDetailsElement. See
+// nsCSSFrameConstructor::ConstructDetailsFrame for the structure of a
+// DetailsFrame.
+//
+class DetailsFrame final : public nsBlockFrame
+{
+public:
+  NS_DECL_FRAMEARENA_HELPERS
+  NS_DECL_QUERYFRAME_TARGET(DetailsFrame)
+  NS_DECL_QUERYFRAME
+
+  explicit DetailsFrame(nsStyleContext* aContext);
+
+  virtual ~DetailsFrame();
+
+  nsIAtom* GetType() const override;
+
+#ifdef DEBUG_FRAME_DUMP
+  nsresult GetFrameName(nsAString& aResult) const override
+  {
+    return MakeFrameName(NS_LITERAL_STRING("Details"), aResult);
+  }
+#endif
+
+};
+
+#endif // DetailsFrame_h

layout/generic/moz.build

@@ -112,6 +112,7 @@ EXPORTS.mozilla.layout += [
 
 UNIFIED_SOURCES += [
     'AsyncScrollBase.cpp',
+    'DetailsFrame.cpp',
     'FrameChildList.cpp',
     'MathMLTextRunFactory.cpp',
     'nsAbsoluteContainingBlock.cpp',

layout/generic/nsFrameIdList.h

@@ -3,6 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 FRAME_ID(BRFrame)
+FRAME_ID(DetailsFrame)
 FRAME_ID(nsAutoRepeatBoxFrame)
 FRAME_ID(nsBCTableCellFrame)
 FRAME_ID(nsBackdropFrame)

layout/generic/nsHTMLParts.h

@@ -175,6 +175,9 @@ nsIFrame*
 NS_NewRangeFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
 nsIFrame*
 NS_NewNumberControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
+class DetailsFrame;
+DetailsFrame*
+NS_NewDetailsFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
 
 // Table frame factories
 class nsTableOuterFrame;