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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 */
#include "nsROCSSPrimitiveValue.h"
#include "mozilla/ErrorResult.h"
#include "nsPresContext.h"
#include "nsStyleUtil.h"
#include "nsIURI.h"
#include "nsError.h"
using namespace mozilla;
using namespace mozilla::dom;
nsROCSSPrimitiveValue::nsROCSSPrimitiveValue() : CSSValue(), mType(CSS_PX) {
mValue.mFloat = 0.0f;
}
nsROCSSPrimitiveValue::~nsROCSSPrimitiveValue() { Reset(); }
void nsROCSSPrimitiveValue::GetCssText(nsString& aCssText, ErrorResult& aRv) {
nsAutoString tmpStr;
aCssText.Truncate();
switch (mType) {
case CSS_PX: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
tmpStr.AppendLiteral("px");
break;
}
case CSS_STRING: {
tmpStr.Append(mValue.mString);
break;
}
case CSS_URI: {
if (mValue.mURI) {
nsAutoCString specUTF8;
nsresult rv = mValue.mURI->GetSpec(specUTF8);
if (NS_FAILED(rv)) {
aRv.ThrowInvalidStateError("Can't get URL string for url()");
return;
}
tmpStr.AssignLiteral("url(");
nsStyleUtil::AppendEscapedCSSString(NS_ConvertUTF8toUTF16(specUTF8),
tmpStr);
tmpStr.Append(')');
} else {
// http://dev.w3.org/csswg/css3-values/#attr defines
// 'about:invalid' as the default value for url attributes,
// so let's also use it here as the default computed value
// for invalid URLs.
tmpStr.AssignLiteral(u"url(about:invalid)");
}
break;
}
case CSS_PERCENTAGE: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat * 100, tmpStr);
tmpStr.Append(char16_t('%'));
break;
}
case CSS_NUMBER: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
break;
}
case CSS_NUMBER_INT32: {
tmpStr.AppendInt(mValue.mInt32);
break;
}
case CSS_NUMBER_UINT32: {
tmpStr.AppendInt(mValue.mUint32);
break;
}
case CSS_DEG: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
tmpStr.AppendLiteral("deg");
break;
}
case CSS_S: {
nsStyleUtil::AppendCSSNumber(mValue.mFloat, tmpStr);
tmpStr.Append('s');
break;
}
case CSS_CM:
case CSS_MM:
case CSS_IN:
case CSS_PT:
case CSS_PC:
case CSS_UNKNOWN:
case CSS_EMS:
case CSS_EXS:
case CSS_MS:
case CSS_HZ:
case CSS_KHZ:
case CSS_DIMENSION:
NS_ERROR("We have a bogus value set. This should not happen");
aRv.ThrowInvalidAccessError("Unexpected value in computed style");
return;
}
aCssText.Assign(tmpStr);
}
uint16_t nsROCSSPrimitiveValue::CssValueType() const {
return CSSValue::CSS_PRIMITIVE_VALUE;
}
void nsROCSSPrimitiveValue::SetNumber(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_NUMBER;
}
void nsROCSSPrimitiveValue::SetNumber(int32_t aValue) {
Reset();
mValue.mInt32 = aValue;
mType = CSS_NUMBER_INT32;
}
void nsROCSSPrimitiveValue::SetNumber(uint32_t aValue) {
Reset();
mValue.mUint32 = aValue;
mType = CSS_NUMBER_UINT32;
}
void nsROCSSPrimitiveValue::SetPercent(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_PERCENTAGE;
}
void nsROCSSPrimitiveValue::SetDegree(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_DEG;
}
void nsROCSSPrimitiveValue::SetAppUnits(nscoord aValue) {
SetPixels(nsPresContext::AppUnitsToFloatCSSPixels(aValue));
}
void nsROCSSPrimitiveValue::SetPixels(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_PX;
}
void nsROCSSPrimitiveValue::SetAppUnits(float aValue) {
SetAppUnits(NSToCoordRound(aValue));
}
void nsROCSSPrimitiveValue::SetString(const nsACString& aString) {
Reset();
mValue.mString = ToNewUnicode(aString, mozilla::fallible);
if (mValue.mString) {
mType = CSS_STRING;
} else {
// XXXcaa We should probably let the caller know we are out of memory
mType = CSS_UNKNOWN;
}
}
void nsROCSSPrimitiveValue::SetString(const nsAString& aString) {
Reset();
mValue.mString = ToNewUnicode(aString, mozilla::fallible);
if (mValue.mString) {
mType = CSS_STRING;
} else {
// XXXcaa We should probably let the caller know we are out of memory
mType = CSS_UNKNOWN;
}
}
void nsROCSSPrimitiveValue::SetURI(nsIURI* aURI) {
Reset();
mValue.mURI = aURI;
NS_IF_ADDREF(mValue.mURI);
mType = CSS_URI;
}
void nsROCSSPrimitiveValue::SetTime(float aValue) {
Reset();
mValue.mFloat = aValue;
mType = CSS_S;
}
void nsROCSSPrimitiveValue::Reset() {
switch (mType) {
case CSS_STRING:
NS_ASSERTION(mValue.mString, "Null string should never happen");
free(mValue.mString);
mValue.mString = nullptr;
break;
case CSS_URI:
NS_IF_RELEASE(mValue.mURI);
break;
}
mType = CSS_UNKNOWN;
}
uint16_t nsROCSSPrimitiveValue::PrimitiveType() {
// New value types were introduced but not added to CSS OM.
// Return CSS_UNKNOWN to avoid exposing CSS_TURN to content.
if (mType > CSS_RGBCOLOR) {
if (mType == CSS_NUMBER_INT32 || mType == CSS_NUMBER_UINT32) {
return CSS_NUMBER;
}
return CSS_UNKNOWN;
}
return mType;
}
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