gecko-dev/dom/mathml/nsMathMLElement.h
Frédéric Wang 8f3b2a9292 Bug 1575542 - Add counter and warnings for deprecated MathML lengths. r=emilio
This commit introduces new counters and deprecation warnings for the following
MathML features:
* mathspace names (bug 1575542)
* mathsize names (bug 1548527)
* linethickness names (bug 1548529)

Note: helper parsing functions for mfrac and mpadded are changed to non-static
in order to pass the document parameter needed to log warnings to the console.

Change manually tested with
    <math>
      <mspace width="thinmathspace"></mspace>
      <mpadded width="2thickmathspace"></mpadded>
      <mfrac linethickness="thin"><mn>1</mn><mn>2</mn></mfrac>
      <mtext mathsize="big">3</mtext>
    </math>

Differential Revision: https://phabricator.services.mozilla.com/D42890

--HG--
extra : moz-landing-system : lando
2019-08-22 06:29:26 +00:00

106 lines
3.9 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 nsMathMLElement_h
#define nsMathMLElement_h
#include "mozilla/Attributes.h"
#include "mozilla/dom/Element.h"
#include "nsMappedAttributeElement.h"
#include "Link.h"
#include "mozilla/dom/DOMRect.h"
class nsCSSValue;
typedef nsMappedAttributeElement nsMathMLElementBase;
namespace mozilla {
class EventChainPostVisitor;
class EventChainPreVisitor;
} // namespace mozilla
/*
* The base class for MathML elements.
*/
class nsMathMLElement final : public nsMathMLElementBase,
public mozilla::dom::Link {
public:
explicit nsMathMLElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
explicit nsMathMLElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
// Implementation of nsISupports is inherited from nsMathMLElementBase
NS_DECL_ISUPPORTS_INHERITED
nsresult BindToTree(BindContext&, nsINode& aParent) override;
virtual void UnbindFromTree(bool aNullParent = true) override;
virtual bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) override;
NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction()
const override;
enum {
PARSE_ALLOW_UNITLESS = 0x01, // unitless 0 will be turned into 0px
PARSE_ALLOW_NEGATIVE = 0x02,
PARSE_SUPPRESS_WARNINGS = 0x04,
CONVERT_UNITLESS_TO_PERCENT = 0x08
};
static bool ParseNamedSpaceValue(const nsString& aString,
nsCSSValue& aCSSValue, uint32_t aFlags,
const Document& aDocument);
static bool ParseNumericValue(const nsString& aString, nsCSSValue& aCSSValue,
uint32_t aFlags, Document* aDocument);
static void MapMathMLAttributesInto(const nsMappedAttributes* aAttributes,
mozilla::MappedDeclarations&);
void GetEventTargetParent(mozilla::EventChainPreVisitor& aVisitor) override;
MOZ_CAN_RUN_SCRIPT
nsresult PostHandleEvent(mozilla::EventChainPostVisitor& aVisitor) override;
nsresult Clone(mozilla::dom::NodeInfo*, nsINode** aResult) const override;
virtual mozilla::EventStates IntrinsicState() const override;
virtual bool IsNodeOfType(uint32_t aFlags) const override;
// Set during reflow as necessary. Does a style change notification,
// aNotify must be true.
void SetIncrementScriptLevel(bool aIncrementScriptLevel, bool aNotify);
bool GetIncrementScriptLevel() const { return mIncrementScriptLevel; }
virtual bool IsFocusableInternal(int32_t* aTabIndex,
bool aWithMouse) override;
virtual bool IsLink(nsIURI** aURI) const override;
virtual void GetLinkTarget(nsAString& aTarget) override;
virtual already_AddRefed<nsIURI> GetHrefURI() const override;
virtual void NodeInfoChanged(Document* aOldDoc) override {
ClearHasPendingLinkUpdate();
nsMathMLElementBase::NodeInfoChanged(aOldDoc);
}
protected:
virtual ~nsMathMLElement() {}
virtual JSObject* WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) override;
private:
bool mIncrementScriptLevel;
};
#endif // nsMathMLElement_h