From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- dom/base/nsStyledElement.h | 99 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 dom/base/nsStyledElement.h (limited to 'dom/base/nsStyledElement.h') diff --git a/dom/base/nsStyledElement.h b/dom/base/nsStyledElement.h new file mode 100644 index 0000000000..670c838fc9 --- /dev/null +++ b/dom/base/nsStyledElement.h @@ -0,0 +1,99 @@ +/* -*- 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/. */ + +/** + * nsStyledElement is the base for elements supporting styling via the + * id/class/style attributes; it is a common base for their support in HTML, + * SVG and MathML. + */ + +#ifndef __NS_STYLEDELEMENT_H_ +#define __NS_STYLEDELEMENT_H_ + +#include "mozilla/Attributes.h" +#include "mozilla/dom/Element.h" +#include "nsString.h" + +namespace mozilla { +class DeclarationBlock; +struct MutationClosureData; +} // namespace mozilla + +// IID for nsStyledElement interface +#define NS_STYLED_ELEMENT_IID \ + { \ + 0xacbd9ea6, 0x15aa, 0x4f37, { \ + 0x8c, 0xe0, 0x35, 0x1e, 0xd7, 0x21, 0xca, 0xe9 \ + } \ + } + +using nsStyledElementBase = mozilla::dom::Element; + +class nsStyledElement : public nsStyledElementBase { + protected: + inline explicit nsStyledElement( + already_AddRefed&& aNodeInfo) + : nsStyledElementBase(std::move(aNodeInfo)) {} + + public: + // We don't want to implement AddRef/Release because that would add an extra + // function call for those on pretty much all elements. But we do need QI, so + // we can QI to nsStyledElement. + NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) override; + + // Element interface methods + virtual void InlineStyleDeclarationWillChange( + mozilla::MutationClosureData& aData) override; + virtual nsresult SetInlineStyleDeclaration( + mozilla::DeclarationBlock& aDeclaration, + mozilla::MutationClosureData& aData) override; + virtual nsresult BindToTree(BindContext& aContext, nsINode& aParent) override; + + nsICSSDeclaration* Style(); + + NS_DECLARE_STATIC_IID_ACCESSOR(NS_STYLED_ELEMENT_IID) + NS_IMPL_FROMNODE_HELPER(nsStyledElement, IsStyledElement()); + + bool IsStyledElement() const final { return true; } + + protected: + nsICSSDeclaration* GetExistingStyle(); + + /** + * Parse a style attr value into a CSS rulestruct (or, if there is no + * document, leave it as a string) and return as nsAttrValue. + * + * @param aValue the value to parse + * @param aMaybeScriptedPrincipal if available, the scripted principal + * responsible for this attribute value, as passed to + * Element::ParseAttribute. + * @param aResult the resulting HTMLValue [OUT] + */ + void ParseStyleAttribute(const nsAString& aValue, + nsIPrincipal* aMaybeScriptedPrincipal, + nsAttrValue& aResult, bool aForceInDataDoc); + + bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute, + const nsAString& aValue, + nsIPrincipal* aMaybeScriptedPrincipal, + nsAttrValue& aResult) override; + + friend class mozilla::dom::Element; + + /** + * Create the style struct from the style attr. Used when an element is + * first put into a document. Only has an effect if the old value is a + * string. If aForceInDataDoc is true, will reparse even if we're in a data + * document. + */ + nsresult ReparseStyleAttribute(bool aForceInDataDoc); + + void BeforeSetAttr(int32_t aNamespaceID, nsAtom* aName, + const nsAttrValue* aValue, bool aNotify) override; +}; + +NS_DEFINE_STATIC_IID_ACCESSOR(nsStyledElement, NS_STYLED_ELEMENT_IID) +#endif // __NS_STYLEDELEMENT_H_ -- cgit v1.2.3