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9f27533bfc
This change stores the subject principal in the URLExtraData when parsing style attributes, which causes it to be used as the triggering principal for those loads rather than defaulting to the document principal. MozReview-Commit-ID: 22tmNRRCgaj --HG-- extra : rebase_source : d025870431a457a417523ff57bd8eac3b41d65d0
99 lines
3.5 KiB
C++
99 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* nsStyledElement is the base for elements supporting styling via the
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* id/class/style attributes; it is a common base for their support in HTML,
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* SVG and MathML.
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*/
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#ifndef __NS_STYLEDELEMENT_H_
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#define __NS_STYLEDELEMENT_H_
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#include "mozilla/Attributes.h"
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#include "nsString.h"
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#include "mozilla/dom/Element.h"
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namespace mozilla {
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class DeclarationBlock;
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} // namespace mozilla
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// IID for nsStyledElement interface
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#define NS_STYLED_ELEMENT_IID \
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{ 0xacbd9ea6, 0x15aa, 0x4f37, \
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{ 0x8c, 0xe0, 0x35, 0x1e, 0xd7, 0x21, 0xca, 0xe9 } }
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typedef mozilla::dom::Element nsStyledElementBase;
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class nsStyledElement : public nsStyledElementBase
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{
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protected:
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inline explicit nsStyledElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
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: nsStyledElementBase(aNodeInfo)
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{}
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public:
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// We don't want to implement AddRef/Release because that would add an extra
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// function call for those on pretty much all elements. But we do need QI, so
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// we can QI to nsStyledElement.
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NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) override;
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// Element interface methods
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virtual nsresult SetInlineStyleDeclaration(mozilla::DeclarationBlock* aDeclaration,
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const nsAString* aSerialized,
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bool aNotify) override;
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nsICSSDeclaration* Style();
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_STYLED_ELEMENT_IID)
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protected:
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nsICSSDeclaration* GetExistingStyle();
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/**
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* Parse a style attr value into a CSS rulestruct (or, if there is no
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* document, leave it as a string) and return as nsAttrValue.
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*
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* @param aValue the value to parse
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* @param aMaybeScriptedPrincipal if available, the scripted principal
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* responsible for this attribute value, as passed to
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* Element::ParseAttribute.
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* @param aResult the resulting HTMLValue [OUT]
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*/
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void ParseStyleAttribute(const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult,
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bool aForceInDataDoc);
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virtual bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult) override;
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friend class mozilla::dom::Element;
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/**
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* Create the style struct from the style attr. Used when an element is
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* first put into a document. Only has an effect if the old value is a
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* string. If aForceInDataDoc is true, will reparse even if we're in a data
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* document. If aForceIfAlreadyParsed is set, this will always reparse even
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* if the value has already been parsed.
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*/
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nsresult ReparseStyleAttribute(bool aForceInDataDoc, bool aForceIfAlreadyParsed);
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virtual void NodeInfoChanged(nsIDocument* aOldDoc) override;
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virtual nsresult BeforeSetAttr(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValueOrString* aValue,
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bool aNotify) override;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsStyledElement, NS_STYLED_ELEMENT_IID)
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#endif // __NS_STYLEDELEMENT_H_
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