gecko-dev/dom/svg/SVGScriptElement.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

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3.0 KiB
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/* -*- 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 DOM_SVG_SVGSCRIPTELEMENT_H_
#define DOM_SVG_SVGSCRIPTELEMENT_H_
#include "SVGAnimatedString.h"
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/dom/ScriptElement.h"
#include "mozilla/dom/SVGElement.h"
nsresult NS_NewSVGScriptElement(
nsIContent** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
mozilla::dom::FromParser aFromParser);
namespace mozilla::dom {
using SVGScriptElementBase = SVGElement;
class SVGScriptElement final : public SVGScriptElementBase,
public ScriptElement {
protected:
friend nsresult(::NS_NewSVGScriptElement(
nsIContent** aResult,
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
mozilla::dom::FromParser aFromParser));
SVGScriptElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
FromParser aFromParser);
JSObject* WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
public:
// interfaces:
NS_DECL_ISUPPORTS_INHERITED
// nsIScriptElement
bool GetScriptType(nsAString& type) override;
void GetScriptText(nsAString& text) const override;
void GetScriptCharset(nsAString& charset) override;
void FreezeExecutionAttrs(Document* aOwnerDoc) override;
CORSMode GetCORSMode() const override;
// ScriptElement
bool HasScriptContent() override;
// nsIContent specializations:
nsresult BindToTree(BindContext&, nsINode& aParent) override;
void AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
const nsAttrValue* aValue, const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal, bool aNotify) override;
bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) override;
nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
// WebIDL
void GetType(nsAString& aType);
void SetType(const nsAString& aType, ErrorResult& rv);
void GetCrossOrigin(nsAString& aCrossOrigin);
void SetCrossOrigin(const nsAString& aCrossOrigin, ErrorResult& aError);
already_AddRefed<DOMSVGAnimatedString> Href();
protected:
~SVGScriptElement() = default;
StringAttributesInfo GetStringInfo() override;
// SVG Script elements don't have the ability to set async properties on
// themselves, so this will always return false.
bool GetAsyncState() override { return false; }
enum { HREF, XLINK_HREF };
SVGAnimatedString mStringAttributes[2];
static StringInfo sStringInfo[2];
};
} // namespace mozilla::dom
#endif // DOM_SVG_SVGSCRIPTELEMENT_H_