fune/dom/html/HTMLAreaElement.h
Emilio Cobos Álvarez 51758cfc9b Bug 1829189 - Make OnAttrSetButNotChanged and AfterSetAttr infallible. r=smaug
Same rg + sed shenanigans as the first patch.

There were two that could fail, both due to OOM:

 * HTMLInputElement::AfterSetAttr: If we fail (only in the type=range
   case) we end up with an old value without it being clamped by
   min/max/step.

 * HTMLBodyElement::AfterSetAttr: If we fail we won't peek up the
   DocShell's frame margins and styling could be incorrect.

That seems better than having to deal with broken states after we've
already set the attribute.

Depends on D176069

Differential Revision: https://phabricator.services.mozilla.com/D176070
2023-04-21 08:56:27 +00:00

175 lines
5.4 KiB
C++

/* -*- 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 mozilla_dom_HTMLAreaElement_h
#define mozilla_dom_HTMLAreaElement_h
#include "mozilla/Attributes.h"
#include "mozilla/dom/AnchorAreaFormRelValues.h"
#include "mozilla/dom/Link.h"
#include "nsGenericHTMLElement.h"
#include "nsGkAtoms.h"
namespace mozilla {
class EventChainPostVisitor;
class EventChainPreVisitor;
namespace dom {
class HTMLAreaElement final : public nsGenericHTMLElement,
public Link,
public AnchorAreaFormRelValues {
public:
explicit HTMLAreaElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
// CC
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLAreaElement,
nsGenericHTMLElement)
NS_DECL_ADDSIZEOFEXCLUDINGTHIS
NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLAreaElement, area)
virtual int32_t TabIndexDefault() override;
void GetEventTargetParent(EventChainPreVisitor& aVisitor) override;
MOZ_CAN_RUN_SCRIPT
nsresult PostHandleEvent(EventChainPostVisitor& aVisitor) override;
void GetLinkTarget(nsAString& aTarget) override;
already_AddRefed<nsIURI> GetHrefURI() const override;
virtual nsresult BindToTree(BindContext&, nsINode& aParent) override;
virtual void UnbindFromTree(bool aNullParent = true) override;
virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
virtual ElementState IntrinsicState() const override;
// WebIDL
void GetAlt(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::alt, aValue); }
void SetAlt(const nsAString& aAlt, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::alt, aAlt, aError);
}
void GetCoords(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::coords, aValue); }
void SetCoords(const nsAString& aCoords, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::coords, aCoords, aError);
}
// argument type nsAString for HTMLImageMapAccessible
void GetShape(nsAString& aValue) { GetHTMLAttr(nsGkAtoms::shape, aValue); }
void SetShape(const nsAString& aShape, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::shape, aShape, aError);
}
// argument type nsAString for nsContextMenuInfo
void GetHref(nsAString& aValue) {
GetURIAttr(nsGkAtoms::href, nullptr, aValue);
}
void SetHref(const nsAString& aHref, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::href, aHref, aError);
}
void GetTarget(DOMString& aValue);
void SetTarget(const nsAString& aTarget, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::target, aTarget, aError);
}
void GetDownload(DOMString& aValue) {
GetHTMLAttr(nsGkAtoms::download, aValue);
}
void SetDownload(const nsAString& aDownload, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::download, aDownload, aError);
}
void GetPing(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::ping, aValue); }
void SetPing(const nsAString& aPing, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::ping, aPing, aError);
}
void GetRel(DOMString& aValue) { GetHTMLAttr(nsGkAtoms::rel, aValue); }
void SetRel(const nsAString& aRel, ErrorResult& aError) {
SetHTMLAttr(nsGkAtoms::rel, aRel, aError);
}
nsDOMTokenList* RelList();
void SetReferrerPolicy(const nsAString& aValue, mozilla::ErrorResult& rv) {
SetHTMLAttr(nsGkAtoms::referrerpolicy, aValue, rv);
}
void GetReferrerPolicy(nsAString& aReferrer) {
GetEnumAttr(nsGkAtoms::referrerpolicy, "", aReferrer);
}
// The Link::GetOrigin is OK for us
// Link::Link::GetProtocol is OK for us
// Link::Link::SetProtocol is OK for us
// The Link::GetUsername is OK for us
// The Link::SetUsername is OK for us
// The Link::GetPassword is OK for us
// The Link::SetPassword is OK for us
// Link::Link::GetHost is OK for us
// Link::Link::SetHost is OK for us
// Link::Link::GetHostname is OK for us
// Link::Link::SetHostname is OK for us
// Link::Link::GetPort is OK for us
// Link::Link::SetPort is OK for us
// Link::Link::GetPathname is OK for us
// Link::Link::SetPathname is OK for us
// Link::Link::GetSearch is OK for us
// Link::Link::SetSearch is OK for us
// Link::Link::GetHash is OK for us
// Link::Link::SetHash is OK for us
// The Link::GetSearchParams is OK for us
bool NoHref() const { return GetBoolAttr(nsGkAtoms::nohref); }
void SetNoHref(bool aValue, ErrorResult& aError) {
SetHTMLBoolAttr(nsGkAtoms::nohref, aValue, aError);
}
void ToString(nsAString& aSource);
void Stringify(nsAString& aResult) { GetHref(aResult); }
void NodeInfoChanged(Document* aOldDoc) final {
ClearHasPendingLinkUpdate();
nsGenericHTMLElement::NodeInfoChanged(aOldDoc);
}
protected:
virtual ~HTMLAreaElement();
virtual JSObject* WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
virtual void AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) override;
RefPtr<nsDOMTokenList> mRelList;
};
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_HTMLAreaElement_h */