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Diffstat (limited to 'dom/html/HTMLFrameSetElement.h')
| -rw-r--r-- | dom/html/HTMLFrameSetElement.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/dom/html/HTMLFrameSetElement.h b/dom/html/HTMLFrameSetElement.h new file mode 100644 index 0000000000..d0c735621a --- /dev/null +++ b/dom/html/HTMLFrameSetElement.h @@ -0,0 +1,153 @@ +/* -*- 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); + } + + 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); + + bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute, + const nsAString& aValue, + nsIPrincipal* aMaybeScriptedPrincipal, + nsAttrValue& aResult) override; + nsChangeHint GetAttributeChangeHint(const nsAtom* aAttribute, + int32_t aModType) const override; + + nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override; + + protected: + virtual ~HTMLFrameSetElement(); + + JSObject* WrapNode(JSContext*, JS::Handle<JSObject*> aGivenProto) override; + + void BeforeSetAttr(int32_t aNamespaceID, nsAtom* aName, + const nsAttrValue* aValue, bool aNotify) override; + + private: + nsresult ParseRowCol(const nsAttrValue& 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 |