mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 05:35:31 +00:00
160 lines
6.3 KiB
C++
160 lines
6.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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/. */
|
|
|
|
/* base class for DOM objects for element.style and cssStyleRule.style */
|
|
|
|
#ifndef nsDOMCSSDeclaration_h___
|
|
#define nsDOMCSSDeclaration_h___
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsICSSDeclaration.h"
|
|
#include "nsIDOMCSS2Properties.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "mozilla/dom/CSS2PropertiesBinding.h"
|
|
|
|
class nsCSSParser;
|
|
class nsIURI;
|
|
class nsIPrincipal;
|
|
class nsIDocument;
|
|
|
|
namespace mozilla {
|
|
namespace css {
|
|
class Declaration;
|
|
class Loader;
|
|
class Rule;
|
|
}
|
|
}
|
|
|
|
class nsDOMCSSDeclaration : public nsICSSDeclaration,
|
|
public nsIDOMCSS2Properties
|
|
{
|
|
public:
|
|
// Only implement QueryInterface; subclasses have the responsibility
|
|
// of implementing AddRef/Release.
|
|
NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr);
|
|
|
|
// Declare addref and release so they can be called on us, but don't
|
|
// implement them. Our subclasses must handle their own
|
|
// refcounting.
|
|
NS_IMETHOD_(nsrefcnt) AddRef() = 0;
|
|
NS_IMETHOD_(nsrefcnt) Release() = 0;
|
|
|
|
NS_DECL_NSICSSDECLARATION
|
|
using nsICSSDeclaration::GetLength;
|
|
|
|
// Require subclasses to implement |GetParentRule|.
|
|
//NS_DECL_NSIDOMCSSSTYLEDECLARATION
|
|
NS_IMETHOD GetCssText(nsAString & aCssText);
|
|
NS_IMETHOD SetCssText(const nsAString & aCssText) MOZ_OVERRIDE;
|
|
NS_IMETHOD GetPropertyValue(const nsAString & propertyName,
|
|
nsAString & _retval) MOZ_OVERRIDE;
|
|
NS_IMETHOD GetPropertyCSSValue(const nsAString & propertyName,
|
|
nsIDOMCSSValue **_retval) MOZ_OVERRIDE;
|
|
NS_IMETHOD RemoveProperty(const nsAString & propertyName,
|
|
nsAString & _retval);
|
|
NS_IMETHOD GetPropertyPriority(const nsAString & propertyName,
|
|
nsAString & _retval) MOZ_OVERRIDE;
|
|
NS_IMETHOD SetProperty(const nsAString & propertyName,
|
|
const nsAString & value, const nsAString & priority) MOZ_OVERRIDE;
|
|
NS_IMETHOD GetLength(uint32_t *aLength) MOZ_OVERRIDE;
|
|
NS_IMETHOD GetParentRule(nsIDOMCSSRule * *aParentRule) MOZ_OVERRIDE = 0;
|
|
|
|
// We implement this as a shim which forwards to GetPropertyValue
|
|
// and SetPropertyValue; subclasses need not.
|
|
NS_DECL_NSIDOMCSS2PROPERTIES
|
|
|
|
// WebIDL interface for CSS2Properties
|
|
#define CSS_PROP_DOMPROP_PREFIXED(prop_) Moz ## prop_
|
|
#define CSS_PROP(name_, id_, method_, flags_, pref_, parsevariant_, \
|
|
kwtable_, stylestruct_, stylestructoffset_, animtype_) \
|
|
void \
|
|
Get##method_(nsAString& aValue, mozilla::ErrorResult& rv) \
|
|
{ \
|
|
rv = GetPropertyValue(eCSSProperty_##id_, aValue); \
|
|
} \
|
|
\
|
|
void \
|
|
Set##method_(const nsAString& aValue, mozilla::ErrorResult& rv) \
|
|
{ \
|
|
rv = SetPropertyValue(eCSSProperty_##id_, aValue); \
|
|
}
|
|
|
|
#define CSS_PROP_LIST_EXCLUDE_INTERNAL
|
|
#define CSS_PROP_SHORTHAND(name_, id_, method_, flags_, pref_) \
|
|
CSS_PROP(name_, id_, method_, flags_, pref_, X, X, X, X, X)
|
|
#include "nsCSSPropList.h"
|
|
|
|
#define CSS_PROP_ALIAS(aliasname_, propid_, aliasmethod_, pref_) \
|
|
CSS_PROP(X, propid_, aliasmethod_, X, pref_, X, X, X, X, X)
|
|
#include "nsCSSPropAliasList.h"
|
|
#undef CSS_PROP_ALIAS
|
|
|
|
#undef CSS_PROP_SHORTHAND
|
|
#undef CSS_PROP_LIST_EXCLUDE_INTERNAL
|
|
#undef CSS_PROP
|
|
#undef CSS_PROP_DOMPROP_PREFIXED
|
|
|
|
virtual void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aPropName);
|
|
|
|
virtual JSObject* WrapObject(JSContext *cx, JSObject *scope,
|
|
bool *triedToWrap)
|
|
{
|
|
return mozilla::dom::CSS2PropertiesBinding::Wrap(cx, scope, this,
|
|
triedToWrap);
|
|
}
|
|
|
|
protected:
|
|
// This method can return null regardless of the value of aAllocate;
|
|
// however, a null return should only be considered a failure
|
|
// if aAllocate is true.
|
|
virtual mozilla::css::Declaration* GetCSSDeclaration(bool aAllocate) = 0;
|
|
virtual nsresult SetCSSDeclaration(mozilla::css::Declaration* aDecl) = 0;
|
|
// Document that we must call BeginUpdate/EndUpdate on around the
|
|
// calls to SetCSSDeclaration and the style rule mutation that leads
|
|
// to it.
|
|
virtual nsIDocument* DocToUpdate() = 0;
|
|
|
|
// Information neded to parse a declaration. We need the mSheetURI
|
|
// for error reporting, mBaseURI to resolve relative URIs,
|
|
// mPrincipal for subresource loads, and mCSSLoader for determining
|
|
// whether we're in quirks mode. mBaseURI needs to be a strong
|
|
// pointer because of xml:base possibly creating base URIs on the
|
|
// fly. This is why we don't use CSSParsingEnvironment as a return
|
|
// value, to avoid multiple-refcounting of mBaseURI.
|
|
struct CSSParsingEnvironment {
|
|
nsIURI* mSheetURI;
|
|
nsCOMPtr<nsIURI> mBaseURI;
|
|
nsIPrincipal* mPrincipal;
|
|
mozilla::css::Loader* mCSSLoader;
|
|
};
|
|
|
|
// On failure, mPrincipal should be set to null in aCSSParseEnv.
|
|
// If mPrincipal is null, the other members may not be set to
|
|
// anything meaningful.
|
|
virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) = 0;
|
|
|
|
// An implementation for GetCSSParsingEnvironment for callers wrapping
|
|
// an css::Rule.
|
|
static void GetCSSParsingEnvironmentForRule(mozilla::css::Rule* aRule,
|
|
CSSParsingEnvironment& aCSSParseEnv);
|
|
|
|
nsresult ParsePropertyValue(const nsCSSProperty aPropID,
|
|
const nsAString& aPropValue,
|
|
bool aIsImportant);
|
|
|
|
// Prop-id based version of RemoveProperty. Note that this does not
|
|
// return the old value; it just does a straight removal.
|
|
nsresult RemoveProperty(const nsCSSProperty aPropID);
|
|
|
|
protected:
|
|
virtual ~nsDOMCSSDeclaration();
|
|
nsDOMCSSDeclaration()
|
|
{
|
|
SetIsDOMBinding();
|
|
}
|
|
};
|
|
|
|
#endif // nsDOMCSSDeclaration_h___
|