1 files changed, 155 insertions, 0 deletions
diff --git a/dom/html/HTMLFrameSetElement.h b/dom/html/HTMLFrameSetElement.h
new file mode 100644
index 0000000000..4468123c58
--- /dev/null
+++ b/dom/html/HTMLFrameSetElement.h
@@ -0,0 +1,155 @@
+/* -*- 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 HTMLFrameSetElement_h
+#define HTMLFrameSetElement_h
+
+#include "mozilla/Attributes.h"
+#include "mozilla/UniquePtr.h"
+#include "nsGenericHTMLElement.h"
+
+/**
+ * The nsFramesetUnit enum is used to denote the type of each entry
+ * in the row or column spec.
+ */
+enum nsFramesetUnit {
+  eFramesetUnit_Fixed = 0,
+  eFramesetUnit_Percent,
+  eFramesetUnit_Relative
+};
+
+/**
+ * The nsFramesetSpec struct is used to hold a single entry in the
+ * row or column spec.
+ */
+struct nsFramesetSpec {
+  nsFramesetUnit mUnit;
+  nscoord mValue;
+};
+
+/**
+ * The maximum number of entries allowed in the frame set element row
+ * or column spec.
+ */
+#define NS_MAX_FRAMESET_SPEC_COUNT 16000
+
+//----------------------------------------------------------------------
+
+namespace mozilla::dom {
+
+class OnBeforeUnloadEventHandlerNonNull;
+
+class HTMLFrameSetElement final : public nsGenericHTMLElement {
+ public:
+  explicit HTMLFrameSetElement(
+      already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
+      : nsGenericHTMLElement(std::move(aNodeInfo)),
+        mNumRows(0),
+        mNumCols(0),
+        mCurrentRowColHint(NS_STYLE_HINT_REFLOW) {
+    SetHasWeirdParserInsertionMode();
+  }
+
+  NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLFrameSetElement, frameset)
+
+  // nsISupports
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLFrameSetElement,
+                                       nsGenericHTMLElement)
+
+  void GetCols(DOMString& aCols) { GetHTMLAttr(nsGkAtoms::cols, aCols); }
+  void SetCols(const nsAString& aCols, ErrorResult& aError) {
+    SetHTMLAttr(nsGkAtoms::cols, aCols, aError);
+  }
+  void GetRows(DOMString& aRows) { GetHTMLAttr(nsGkAtoms::rows, aRows); }
+  void SetRows(const nsAString& aRows, ErrorResult& aError) {
+    SetHTMLAttr(nsGkAtoms::rows, aRows, aError);
+  }
+
+  virtual bool IsEventAttributeNameInternal(nsAtom* aName) override;
+
+  // Event listener stuff; we need to declare only the ones we need to
+  // forward to window that don't come from nsIDOMHTMLFrameSetElement.
+#define EVENT(name_, id_, type_, \
+              struct_) /* nothing; handled by the superclass */
+#define WINDOW_EVENT_HELPER(name_, type_) \
+  type_* GetOn##name_();                  \
+  void SetOn##name_(type_* handler);
+#define WINDOW_EVENT(name_, id_, type_, struct_) \
+  WINDOW_EVENT_HELPER(name_, EventHandlerNonNull)
+#define BEFOREUNLOAD_EVENT(name_, id_, type_, struct_) \
+  WINDOW_EVENT_HELPER(name_, OnBeforeUnloadEventHandlerNonNull)
+#include "mozilla/EventNameList.h"  // IWYU pragma: keep
+#undef BEFOREUNLOAD_EVENT
+#undef WINDOW_EVENT
+#undef WINDOW_EVENT_HELPER
+#undef EVENT
+
+  /**
+   * GetRowSpec is used to get the "rows" spec.
+   * @param out int32_t aNumValues The number of row sizes specified.
+   * @param out nsFramesetSpec* aSpecs The array of size specifications.
+            This is _not_ owned by the caller, but by the nsFrameSetElement
+            implementation.  DO NOT DELETE IT.
+   */
+  nsresult GetRowSpec(int32_t* aNumValues, const nsFramesetSpec** aSpecs);
+  /**
+   * GetColSpec is used to get the "cols" spec
+   * @param out int32_t aNumValues The number of row sizes specified.
+   * @param out nsFramesetSpec* aSpecs The array of size specifications.
+            This is _not_ owned by the caller, but by the nsFrameSetElement
+            implementation.  DO NOT DELETE IT.
+   */
+  nsresult GetColSpec(int32_t* aNumValues, const nsFramesetSpec** aSpecs);
+
+  virtual bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
+                              const nsAString& aValue,
+                              nsIPrincipal* aMaybeScriptedPrincipal,
+                              nsAttrValue& aResult) override;
+  virtual nsChangeHint GetAttributeChangeHint(const nsAtom* aAttribute,
+                                              int32_t aModType) const override;
+
+  virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
+
+ protected:
+  virtual ~HTMLFrameSetElement();
+
+  virtual JSObject* WrapNode(JSContext* aCx,
+                             JS::Handle<JSObject*> aGivenProto) override;
+
+  virtual nsresult BeforeSetAttr(int32_t aNamespaceID, nsAtom* aName,
+                                 const nsAttrValueOrString* aValue,
+                                 bool aNotify) override;
+
+ private:
+  nsresult ParseRowCol(const nsAString& aValue, int32_t& aNumSpecs,
+                       UniquePtr<nsFramesetSpec[]>* aSpecs);
+
+  /**
+   * The number of size specs in our "rows" attr
+   */
+  int32_t mNumRows;
+  /**
+   * The number of size specs in our "cols" attr
+   */
+  int32_t mNumCols;
+  /**
+   * The style hint to return for the rows/cols attrs in
+   * GetAttributeChangeHint
+   */
+  nsChangeHint mCurrentRowColHint;
+  /**
+   * The parsed representation of the "rows" attribute
+   */
+  UniquePtr<nsFramesetSpec[]> mRowSpecs;  // parsed, non-computed dimensions
+  /**
+   * The parsed representation of the "cols" attribute
+   */
+  UniquePtr<nsFramesetSpec[]> mColSpecs;  // parsed, non-computed dimensions
+};
+
+}  // namespace mozilla::dom
+
+#endif  // HTMLFrameSetElement_h