gecko/content/base/src/nsStyledElement.h

90 lines
2.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set tw=80 expandtab softtabstop=2 ts=2 sw=2: */
/* 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 "nsString.h"
#include "nsGenericElement.h"
namespace mozilla {
namespace css {
class StyleRule;
}
}
typedef nsGenericElement nsStyledElementBase;
class nsStyledElementNotElementCSSInlineStyle : public nsStyledElementBase
{
protected:
inline nsStyledElementNotElementCSSInlineStyle(already_AddRefed<nsINodeInfo> aNodeInfo)
: nsStyledElementBase(aNodeInfo)
{}
public:
// nsIContent interface methods
virtual nsIAtom* GetClassAttributeName() const;
virtual nsIAtom* GetIDAttributeName() const;
virtual nsIAtom* DoGetID() const;
virtual const nsAttrValue* DoGetClasses() const;
virtual mozilla::css::StyleRule* GetInlineStyleRule();
virtual nsresult SetInlineStyleRule(mozilla::css::StyleRule* aStyleRule,
const nsAString* aSerialized,
bool aNotify);
virtual nsresult UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
bool aNotify);
virtual nsresult AfterSetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
const nsAttrValue* aValue, bool aNotify);
nsIDOMCSSStyleDeclaration* GetStyle(nsresult* retval);
protected:
/**
* 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 aResult the resulting HTMLValue [OUT]
*/
void ParseStyleAttribute(const nsAString& aValue,
nsAttrValue& aResult,
bool aForceInDataDoc);
virtual bool ParseAttribute(PRInt32 aNamespaceID, nsIAtom* aAttribute,
const nsAString& aValue, nsAttrValue& aResult);
friend class nsGenericElement;
/**
* 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);
};
class nsStyledElement : public nsStyledElementNotElementCSSInlineStyle {
protected:
inline nsStyledElement(already_AddRefed<nsINodeInfo> aNodeInfo)
: nsStyledElementNotElementCSSInlineStyle(aNodeInfo)
{}
};
#endif // __NS_STYLEDELEMENT_H_