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/* -*- Mode: C++; tab-width: 8; 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/. */
#ifndef HTMLFrameSetElement_h
#define HTMLFrameSetElement_h
#include "mozilla/Attributes.h"
#include "mozilla/UniquePtr.h"
#include "nsIDOMHTMLFrameSetElement.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 {
namespace dom {
class OnBeforeUnloadEventHandlerNonNull;
class HTMLFrameSetElement final : public nsGenericHTMLElement,
public nsIDOMHTMLFrameSetElement
{
public:
explicit HTMLFrameSetElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
: nsGenericHTMLElement(aNodeInfo),
mNumRows(0),
mNumCols(0),
mCurrentRowColHint(NS_STYLE_HINT_REFLOW)
{
SetHasWeirdParserInsertionMode();
}
NS_IMPL_FROMCONTENT_HTML_WITH_TAG(HTMLFrameSetElement, frameset)
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
// nsIDOMHTMLFrameSetElement
NS_DECL_NSIDOMHTMLFRAMESETELEMENT
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 IsEventAttributeName(nsIAtom *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,
nsIAtom* aAttribute,
const nsAString& aValue,
nsAttrValue& aResult) override;
virtual nsChangeHint GetAttributeChangeHint(const nsIAtom* aAttribute,
int32_t aModType) const override;
virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override;
protected:
virtual ~HTMLFrameSetElement();
virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
virtual nsresult BeforeSetAttr(int32_t aNamespaceID, nsIAtom* 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 dom
} // namespace mozilla
#endif // HTMLFrameSetElement_h
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