gecko-dev/layout/style/nsROCSSPrimitiveValue.h

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/* -*- 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/. */
/* DOM object representing values in DOM computed style */
#ifndef nsROCSSPrimitiveValue_h___
#define nsROCSSPrimitiveValue_h___
#include "mozilla/dom/CSSPrimitiveValueBinding.h"
#include "mozilla/dom/CSSValueBinding.h"
#include "nsCSSKeywords.h"
#include "CSSValue.h"
#include "nsCOMPtr.h"
#include "nsCoord.h"
class nsIURI;
class nsDOMCSSRect;
class nsDOMCSSRGBColor;
/**
* Read-only CSS primitive value - a DOM object representing values in DOM
* computed style.
*/
class nsROCSSPrimitiveValue final : public mozilla::dom::CSSValue
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsROCSSPrimitiveValue)
// CSSValue
void GetCssText(nsString& aText, mozilla::ErrorResult& aRv) final;
void SetCssText(const nsAString& aText, mozilla::ErrorResult& aRv) final;
uint16_t CssValueType() const final;
// CSSPrimitiveValue
uint16_t PrimitiveType();
void SetFloatValue(uint16_t aUnitType, float aValue,
mozilla::ErrorResult& aRv);
float GetFloatValue(uint16_t aUnitType, mozilla::ErrorResult& aRv);
void GetStringValue(nsString& aString, mozilla::ErrorResult& aRv);
void SetStringValue(uint16_t aUnitType, const nsAString& aString,
mozilla::ErrorResult& aRv);
void GetCounterValue(mozilla::ErrorResult& aRv);
nsDOMCSSRect* GetRectValue(mozilla::ErrorResult& aRv);
nsDOMCSSRGBColor *GetRGBColorValue(mozilla::ErrorResult& aRv);
// nsROCSSPrimitiveValue
nsROCSSPrimitiveValue();
nsresult GetCssText(nsAString& aText);
void SetNumber(float aValue);
void SetNumber(int32_t aValue);
void SetNumber(uint32_t aValue);
void SetPercent(float aValue);
void SetDegree(float aValue);
void SetGrad(float aValue);
void SetRadian(float aValue);
void SetTurn(float aValue);
void SetAppUnits(nscoord aValue);
void SetAppUnits(float aValue);
void SetIdent(nsCSSKeyword aKeyword);
// FIXME: CSS_STRING should imply a string with "" and a need for escaping.
void SetString(
const nsACString& aString,
uint16_t aType = mozilla::dom::CSSPrimitiveValueBinding::CSS_STRING);
// FIXME: CSS_STRING should imply a string with "" and a need for escaping.
void SetString(
const nsAString& aString,
uint16_t aType = mozilla::dom::CSSPrimitiveValueBinding::CSS_STRING);
void SetURI(nsIURI *aURI);
void SetColor(nsDOMCSSRGBColor* aColor);
void SetRect(nsDOMCSSRect* aRect);
void SetTime(float aValue);
void Reset();
nsISupports* GetParentObject() const
{
return nullptr;
}
virtual JSObject *WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override;
private:
~nsROCSSPrimitiveValue();
uint16_t mType;
union {
nscoord mAppUnits;
float mFloat;
int32_t mInt32;
uint32_t mUint32;
// These can't be nsCOMPtr/nsRefPtr's because they are used inside a union.
nsDOMCSSRGBColor* MOZ_OWNING_REF mColor;
nsDOMCSSRect* MOZ_OWNING_REF mRect;
char16_t* mString;
nsIURI* MOZ_OWNING_REF mURI;
nsCSSKeyword mKeyword;
} mValue;
};
inline nsROCSSPrimitiveValue*
mozilla::dom::CSSValue::AsPrimitiveValue()
{
return CssValueType() == CSSValueBinding::CSS_PRIMITIVE_VALUE ?
static_cast<nsROCSSPrimitiveValue*>(this) : nullptr;
}
#endif /* nsROCSSPrimitiveValue_h___ */