gecko/layout/style/nsCSSValue.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
2012-05-21 04:12:37 -07:00
/* 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/. */
/* representation of simple property values within CSS declarations */
#include "nsCSSValue.h"
#include "imgIRequest.h"
#include "nsIPrincipal.h"
#include "nsCSSProps.h"
#include "nsContentUtils.h"
#include "nsStyleUtil.h"
#include "CSSCalc.h"
#include "nsNetUtil.h"
#include "mozilla/css/ImageLoader.h"
namespace css = mozilla::css;
nsCSSValue::nsCSSValue(int32_t aValue, nsCSSUnit aUnit)
: mUnit(aUnit)
{
NS_ABORT_IF_FALSE(aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
aUnit == eCSSUnit_EnumColor, "not an int value");
if (aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
aUnit == eCSSUnit_EnumColor) {
mValue.mInt = aValue;
}
else {
mUnit = eCSSUnit_Null;
mValue.mInt = 0;
}
}
nsCSSValue::nsCSSValue(float aValue, nsCSSUnit aUnit)
: mUnit(aUnit)
{
NS_ABORT_IF_FALSE(eCSSUnit_Percent <= aUnit, "not a float value");
if (eCSSUnit_Percent <= aUnit) {
mValue.mFloat = aValue;
}
else {
mUnit = eCSSUnit_Null;
mValue.mInt = 0;
}
}
nsCSSValue::nsCSSValue(const nsString& aValue, nsCSSUnit aUnit)
: mUnit(aUnit)
{
NS_ABORT_IF_FALSE(UnitHasStringValue(), "not a string value");
if (UnitHasStringValue()) {
mValue.mString = BufferFromString(aValue).get();
if (NS_UNLIKELY(!mValue.mString)) {
// XXXbz not much we can do here; just make sure that our promise of a
// non-null mValue.mString holds for string units.
mUnit = eCSSUnit_Null;
}
}
else {
mUnit = eCSSUnit_Null;
mValue.mInt = 0;
}
}
nsCSSValue::nsCSSValue(nsCSSValue::Array* aValue, nsCSSUnit aUnit)
: mUnit(aUnit)
{
NS_ABORT_IF_FALSE(UnitHasArrayValue(), "bad unit");
mValue.mArray = aValue;
mValue.mArray->AddRef();
}
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
nsCSSValue::nsCSSValue(mozilla::css::URLValue* aValue)
: mUnit(eCSSUnit_URL)
{
mValue.mURL = aValue;
mValue.mURL->AddRef();
}
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
nsCSSValue::nsCSSValue(mozilla::css::ImageValue* aValue)
: mUnit(eCSSUnit_Image)
{
mValue.mImage = aValue;
mValue.mImage->AddRef();
}
nsCSSValue::nsCSSValue(nsCSSValueGradient* aValue)
: mUnit(eCSSUnit_Gradient)
{
mValue.mGradient = aValue;
mValue.mGradient->AddRef();
}
nsCSSValue::nsCSSValue(const nsCSSValue& aCopy)
: mUnit(aCopy.mUnit)
{
if (mUnit <= eCSSUnit_DummyInherit) {
// nothing to do, but put this important case first
}
else if (eCSSUnit_Percent <= mUnit) {
mValue.mFloat = aCopy.mValue.mFloat;
}
else if (UnitHasStringValue()) {
mValue.mString = aCopy.mValue.mString;
mValue.mString->AddRef();
}
else if (eCSSUnit_Integer <= mUnit && mUnit <= eCSSUnit_EnumColor) {
mValue.mInt = aCopy.mValue.mInt;
}
else if (eCSSUnit_Color == mUnit) {
mValue.mColor = aCopy.mValue.mColor;
}
else if (UnitHasArrayValue()) {
mValue.mArray = aCopy.mValue.mArray;
mValue.mArray->AddRef();
}
else if (eCSSUnit_URL == mUnit) {
mValue.mURL = aCopy.mValue.mURL;
mValue.mURL->AddRef();
}
else if (eCSSUnit_Image == mUnit) {
mValue.mImage = aCopy.mValue.mImage;
mValue.mImage->AddRef();
}
else if (eCSSUnit_Gradient == mUnit) {
mValue.mGradient = aCopy.mValue.mGradient;
mValue.mGradient->AddRef();
}
else if (eCSSUnit_Pair == mUnit) {
mValue.mPair = aCopy.mValue.mPair;
mValue.mPair->AddRef();
}
else if (eCSSUnit_Triplet == mUnit) {
mValue.mTriplet = aCopy.mValue.mTriplet;
mValue.mTriplet->AddRef();
}
else if (eCSSUnit_Rect == mUnit) {
mValue.mRect = aCopy.mValue.mRect;
mValue.mRect->AddRef();
}
else if (eCSSUnit_List == mUnit) {
mValue.mList = aCopy.mValue.mList;
mValue.mList->AddRef();
}
else if (eCSSUnit_ListDep == mUnit) {
mValue.mListDependent = aCopy.mValue.mListDependent;
}
else if (eCSSUnit_PairList == mUnit) {
mValue.mPairList = aCopy.mValue.mPairList;
mValue.mPairList->AddRef();
}
else if (eCSSUnit_PairListDep == mUnit) {
mValue.mPairListDependent = aCopy.mValue.mPairListDependent;
}
else {
NS_ABORT_IF_FALSE(false, "unknown unit");
}
}
nsCSSValue& nsCSSValue::operator=(const nsCSSValue& aCopy)
{
if (this != &aCopy) {
Reset();
new (this) nsCSSValue(aCopy);
}
return *this;
}
bool nsCSSValue::operator==(const nsCSSValue& aOther) const
{
NS_ABORT_IF_FALSE(mUnit != eCSSUnit_ListDep &&
aOther.mUnit != eCSSUnit_ListDep &&
mUnit != eCSSUnit_PairListDep &&
aOther.mUnit != eCSSUnit_PairListDep,
"don't use operator== with dependent lists");
if (mUnit == aOther.mUnit) {
if (mUnit <= eCSSUnit_DummyInherit) {
return true;
}
else if (UnitHasStringValue()) {
return (NS_strcmp(GetBufferValue(mValue.mString),
GetBufferValue(aOther.mValue.mString)) == 0);
}
else if ((eCSSUnit_Integer <= mUnit) && (mUnit <= eCSSUnit_EnumColor)) {
return mValue.mInt == aOther.mValue.mInt;
}
else if (eCSSUnit_Color == mUnit) {
return mValue.mColor == aOther.mValue.mColor;
}
else if (UnitHasArrayValue()) {
return *mValue.mArray == *aOther.mValue.mArray;
}
else if (eCSSUnit_URL == mUnit) {
return *mValue.mURL == *aOther.mValue.mURL;
}
else if (eCSSUnit_Image == mUnit) {
return *mValue.mImage == *aOther.mValue.mImage;
}
else if (eCSSUnit_Gradient == mUnit) {
return *mValue.mGradient == *aOther.mValue.mGradient;
}
else if (eCSSUnit_Pair == mUnit) {
return *mValue.mPair == *aOther.mValue.mPair;
}
else if (eCSSUnit_Triplet == mUnit) {
return *mValue.mTriplet == *aOther.mValue.mTriplet;
}
else if (eCSSUnit_Rect == mUnit) {
return *mValue.mRect == *aOther.mValue.mRect;
}
else if (eCSSUnit_List == mUnit) {
return *mValue.mList == *aOther.mValue.mList;
}
else if (eCSSUnit_PairList == mUnit) {
return *mValue.mPairList == *aOther.mValue.mPairList;
}
else {
return mValue.mFloat == aOther.mValue.mFloat;
}
}
return false;
}
double nsCSSValue::GetAngleValueInRadians() const
{
double angle = GetFloatValue();
switch (GetUnit()) {
case eCSSUnit_Radian: return angle;
case eCSSUnit_Turn: return angle * 2 * M_PI;
case eCSSUnit_Degree: return angle * M_PI / 180.0;
case eCSSUnit_Grad: return angle * M_PI / 200.0;
default:
NS_ABORT_IF_FALSE(false, "unrecognized angular unit");
return 0.0;
}
}
imgIRequest* nsCSSValue::GetImageValue(nsIDocument* aDocument) const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_Image, "not an Image value");
return mValue.mImage->mRequests.GetWeak(aDocument);
}
nscoord nsCSSValue::GetFixedLength(nsPresContext* aPresContext) const
{
NS_ABORT_IF_FALSE(mUnit == eCSSUnit_PhysicalMillimeter,
"not a fixed length unit");
float inches = mValue.mFloat / MM_PER_INCH_FLOAT;
return NSToCoordFloorClamped(inches *
float(aPresContext->DeviceContext()->AppUnitsPerPhysicalInch()));
}
nscoord nsCSSValue::GetPixelLength() const
{
NS_ABORT_IF_FALSE(IsPixelLengthUnit(), "not a fixed length unit");
double scaleFactor;
switch (mUnit) {
case eCSSUnit_Pixel: return nsPresContext::CSSPixelsToAppUnits(mValue.mFloat);
case eCSSUnit_Pica: scaleFactor = 16.0; break;
case eCSSUnit_Point: scaleFactor = 4/3.0; break;
case eCSSUnit_Inch: scaleFactor = 96.0; break;
case eCSSUnit_Millimeter: scaleFactor = 96/25.4; break;
case eCSSUnit_Centimeter: scaleFactor = 96/2.54; break;
default:
NS_ERROR("should never get here");
return 0;
}
return nsPresContext::CSSPixelsToAppUnits(float(mValue.mFloat*scaleFactor));
}
void nsCSSValue::DoReset()
{
if (UnitHasStringValue()) {
mValue.mString->Release();
} else if (UnitHasArrayValue()) {
mValue.mArray->Release();
} else if (eCSSUnit_URL == mUnit) {
mValue.mURL->Release();
} else if (eCSSUnit_Image == mUnit) {
mValue.mImage->Release();
} else if (eCSSUnit_Gradient == mUnit) {
mValue.mGradient->Release();
} else if (eCSSUnit_Pair == mUnit) {
mValue.mPair->Release();
} else if (eCSSUnit_Triplet == mUnit) {
mValue.mTriplet->Release();
} else if (eCSSUnit_Rect == mUnit) {
mValue.mRect->Release();
} else if (eCSSUnit_List == mUnit) {
mValue.mList->Release();
} else if (eCSSUnit_PairList == mUnit) {
mValue.mPairList->Release();
}
mUnit = eCSSUnit_Null;
}
void nsCSSValue::SetIntValue(int32_t aValue, nsCSSUnit aUnit)
{
NS_ABORT_IF_FALSE(aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
aUnit == eCSSUnit_EnumColor, "not an int value");
Reset();
if (aUnit == eCSSUnit_Integer || aUnit == eCSSUnit_Enumerated ||
aUnit == eCSSUnit_EnumColor) {
mUnit = aUnit;
mValue.mInt = aValue;
}
}
void nsCSSValue::SetPercentValue(float aValue)
{
Reset();
mUnit = eCSSUnit_Percent;
mValue.mFloat = aValue;
}
void nsCSSValue::SetFloatValue(float aValue, nsCSSUnit aUnit)
{
NS_ABORT_IF_FALSE(eCSSUnit_Number <= aUnit, "not a float value");
Reset();
if (eCSSUnit_Number <= aUnit) {
mUnit = aUnit;
mValue.mFloat = aValue;
}
}
void nsCSSValue::SetStringValue(const nsString& aValue,
nsCSSUnit aUnit)
{
Reset();
mUnit = aUnit;
NS_ABORT_IF_FALSE(UnitHasStringValue(), "not a string unit");
if (UnitHasStringValue()) {
mValue.mString = BufferFromString(aValue).get();
if (NS_UNLIKELY(!mValue.mString)) {
// XXXbz not much we can do here; just make sure that our promise of a
// non-null mValue.mString holds for string units.
mUnit = eCSSUnit_Null;
}
} else
mUnit = eCSSUnit_Null;
}
void nsCSSValue::SetColorValue(nscolor aValue)
{
Reset();
mUnit = eCSSUnit_Color;
mValue.mColor = aValue;
}
void nsCSSValue::SetArrayValue(nsCSSValue::Array* aValue, nsCSSUnit aUnit)
{
Reset();
mUnit = aUnit;
NS_ABORT_IF_FALSE(UnitHasArrayValue(), "bad unit");
mValue.mArray = aValue;
mValue.mArray->AddRef();
}
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
void nsCSSValue::SetURLValue(mozilla::css::URLValue* aValue)
{
Reset();
mUnit = eCSSUnit_URL;
mValue.mURL = aValue;
mValue.mURL->AddRef();
}
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
void nsCSSValue::SetImageValue(mozilla::css::ImageValue* aValue)
{
Reset();
mUnit = eCSSUnit_Image;
mValue.mImage = aValue;
mValue.mImage->AddRef();
}
void nsCSSValue::SetGradientValue(nsCSSValueGradient* aValue)
{
Reset();
mUnit = eCSSUnit_Gradient;
mValue.mGradient = aValue;
mValue.mGradient->AddRef();
}
void nsCSSValue::SetPairValue(const nsCSSValuePair* aValue)
{
// pairs should not be used for null/inherit/initial values
NS_ABORT_IF_FALSE(aValue &&
aValue->mXValue.GetUnit() != eCSSUnit_Null &&
aValue->mYValue.GetUnit() != eCSSUnit_Null &&
aValue->mXValue.GetUnit() != eCSSUnit_Inherit &&
aValue->mYValue.GetUnit() != eCSSUnit_Inherit &&
aValue->mXValue.GetUnit() != eCSSUnit_Initial &&
aValue->mYValue.GetUnit() != eCSSUnit_Initial,
"missing or inappropriate pair value");
Reset();
mUnit = eCSSUnit_Pair;
mValue.mPair = new nsCSSValuePair_heap(aValue->mXValue, aValue->mYValue);
mValue.mPair->AddRef();
}
void nsCSSValue::SetPairValue(const nsCSSValue& xValue,
const nsCSSValue& yValue)
{
NS_ABORT_IF_FALSE(xValue.GetUnit() != eCSSUnit_Null &&
yValue.GetUnit() != eCSSUnit_Null &&
xValue.GetUnit() != eCSSUnit_Inherit &&
yValue.GetUnit() != eCSSUnit_Inherit &&
xValue.GetUnit() != eCSSUnit_Initial &&
yValue.GetUnit() != eCSSUnit_Initial,
"inappropriate pair value");
Reset();
mUnit = eCSSUnit_Pair;
mValue.mPair = new nsCSSValuePair_heap(xValue, yValue);
mValue.mPair->AddRef();
}
void nsCSSValue::SetTripletValue(const nsCSSValueTriplet* aValue)
{
// triplet should not be used for null/inherit/initial values
NS_ABORT_IF_FALSE(aValue &&
aValue->mXValue.GetUnit() != eCSSUnit_Null &&
aValue->mYValue.GetUnit() != eCSSUnit_Null &&
aValue->mZValue.GetUnit() != eCSSUnit_Null &&
aValue->mXValue.GetUnit() != eCSSUnit_Inherit &&
aValue->mYValue.GetUnit() != eCSSUnit_Inherit &&
aValue->mZValue.GetUnit() != eCSSUnit_Inherit &&
aValue->mXValue.GetUnit() != eCSSUnit_Initial &&
aValue->mYValue.GetUnit() != eCSSUnit_Initial &&
aValue->mZValue.GetUnit() != eCSSUnit_Initial,
"missing or inappropriate triplet value");
Reset();
mUnit = eCSSUnit_Triplet;
mValue.mTriplet = new nsCSSValueTriplet_heap(aValue->mXValue, aValue->mYValue, aValue->mZValue);
mValue.mTriplet->AddRef();
}
void nsCSSValue::SetTripletValue(const nsCSSValue& xValue,
const nsCSSValue& yValue,
const nsCSSValue& zValue)
{
// Only allow Null for the z component
NS_ABORT_IF_FALSE(xValue.GetUnit() != eCSSUnit_Null &&
yValue.GetUnit() != eCSSUnit_Null &&
xValue.GetUnit() != eCSSUnit_Inherit &&
yValue.GetUnit() != eCSSUnit_Inherit &&
zValue.GetUnit() != eCSSUnit_Inherit &&
xValue.GetUnit() != eCSSUnit_Initial &&
yValue.GetUnit() != eCSSUnit_Initial &&
zValue.GetUnit() != eCSSUnit_Initial,
"inappropriate triplet value");
Reset();
mUnit = eCSSUnit_Triplet;
mValue.mTriplet = new nsCSSValueTriplet_heap(xValue, yValue, zValue);
mValue.mTriplet->AddRef();
}
nsCSSRect& nsCSSValue::SetRectValue()
{
Reset();
mUnit = eCSSUnit_Rect;
mValue.mRect = new nsCSSRect_heap;
mValue.mRect->AddRef();
return *mValue.mRect;
}
nsCSSValueList* nsCSSValue::SetListValue()
{
Reset();
mUnit = eCSSUnit_List;
mValue.mList = new nsCSSValueList_heap;
mValue.mList->AddRef();
return mValue.mList;
}
void nsCSSValue::SetDependentListValue(nsCSSValueList* aList)
{
Reset();
if (aList) {
mUnit = eCSSUnit_ListDep;
mValue.mListDependent = aList;
}
}
nsCSSValuePairList* nsCSSValue::SetPairListValue()
{
Reset();
mUnit = eCSSUnit_PairList;
mValue.mPairList = new nsCSSValuePairList_heap;
mValue.mPairList->AddRef();
return mValue.mPairList;
}
void nsCSSValue::SetDependentPairListValue(nsCSSValuePairList* aList)
{
Reset();
if (aList) {
mUnit = eCSSUnit_PairListDep;
mValue.mPairListDependent = aList;
}
}
void nsCSSValue::SetAutoValue()
{
Reset();
mUnit = eCSSUnit_Auto;
}
void nsCSSValue::SetInheritValue()
{
Reset();
mUnit = eCSSUnit_Inherit;
}
void nsCSSValue::SetInitialValue()
{
Reset();
mUnit = eCSSUnit_Initial;
}
void nsCSSValue::SetNoneValue()
{
Reset();
mUnit = eCSSUnit_None;
}
void nsCSSValue::SetAllValue()
{
Reset();
mUnit = eCSSUnit_All;
}
void nsCSSValue::SetNormalValue()
{
Reset();
mUnit = eCSSUnit_Normal;
}
void nsCSSValue::SetSystemFontValue()
{
Reset();
mUnit = eCSSUnit_System_Font;
}
void nsCSSValue::SetDummyValue()
{
Reset();
mUnit = eCSSUnit_Dummy;
}
void nsCSSValue::SetDummyInheritValue()
{
Reset();
mUnit = eCSSUnit_DummyInherit;
}
void nsCSSValue::StartImageLoad(nsIDocument* aDocument) const
{
NS_ABORT_IF_FALSE(eCSSUnit_URL == mUnit, "Not a URL value!");
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
mozilla::css::ImageValue* image =
new mozilla::css::ImageValue(mValue.mURL->GetURI(),
mValue.mURL->mString,
mValue.mURL->mReferrer,
mValue.mURL->mOriginPrincipal,
aDocument);
if (image) {
nsCSSValue* writable = const_cast<nsCSSValue*>(this);
writable->SetImageValue(image);
}
}
bool nsCSSValue::IsNonTransparentColor() const
{
// We have the value in the form it was specified in at this point, so we
// have to look for both the keyword 'transparent' and its equivalent in
// rgba notation.
nsDependentString buf;
return
(mUnit == eCSSUnit_Color && NS_GET_A(GetColorValue()) > 0) ||
(mUnit == eCSSUnit_Ident &&
!nsGkAtoms::transparent->Equals(GetStringValue(buf))) ||
(mUnit == eCSSUnit_EnumColor);
}
nsCSSValue::Array*
nsCSSValue::InitFunction(nsCSSKeyword aFunctionId, uint32_t aNumArgs)
{
nsRefPtr<nsCSSValue::Array> func = Array::Create(aNumArgs + 1);
func->Item(0).SetIntValue(aFunctionId, eCSSUnit_Enumerated);
SetArrayValue(func, eCSSUnit_Function);
return func;
}
bool
nsCSSValue::EqualsFunction(nsCSSKeyword aFunctionId) const
{
if (mUnit != eCSSUnit_Function) {
return false;
}
nsCSSValue::Array* func = mValue.mArray;
NS_ABORT_IF_FALSE(func && func->Count() >= 1 &&
func->Item(0).GetUnit() == eCSSUnit_Enumerated,
"illegally structured function value");
nsCSSKeyword thisFunctionId =
static_cast<nsCSSKeyword>(func->Item(0).GetIntValue());
return thisFunctionId == aFunctionId;
}
// static
already_AddRefed<nsStringBuffer>
nsCSSValue::BufferFromString(const nsString& aValue)
{
nsStringBuffer* buffer = nsStringBuffer::FromString(aValue);
if (buffer) {
buffer->AddRef();
return buffer;
}
nsString::size_type length = aValue.Length();
// NOTE: Alloc prouduces a new, already-addref'd (refcnt = 1) buffer.
// NOTE: String buffer allocation is currently fallible.
buffer = nsStringBuffer::Alloc((length + 1) * sizeof(PRUnichar));
if (NS_UNLIKELY(!buffer)) {
NS_RUNTIMEABORT("out of memory");
}
PRUnichar* data = static_cast<PRUnichar*>(buffer->Data());
nsCharTraits<PRUnichar>::copy(data, aValue.get(), length);
// Null-terminate.
data[length] = 0;
return buffer;
}
namespace {
struct CSSValueSerializeCalcOps {
CSSValueSerializeCalcOps(nsCSSProperty aProperty, nsAString& aResult)
: mProperty(aProperty),
mResult(aResult)
{
}
typedef nsCSSValue input_type;
typedef nsCSSValue::Array input_array_type;
static nsCSSUnit GetUnit(const input_type& aValue) {
return aValue.GetUnit();
}
void Append(const char* aString)
{
mResult.AppendASCII(aString);
}
void AppendLeafValue(const input_type& aValue)
{
NS_ABORT_IF_FALSE(aValue.GetUnit() == eCSSUnit_Percent ||
aValue.IsLengthUnit(), "unexpected unit");
aValue.AppendToString(mProperty, mResult);
}
void AppendNumber(const input_type& aValue)
{
NS_ABORT_IF_FALSE(aValue.GetUnit() == eCSSUnit_Number, "unexpected unit");
aValue.AppendToString(mProperty, mResult);
}
private:
nsCSSProperty mProperty;
nsAString &mResult;
};
} // anonymous namespace
void
nsCSSValue::AppendToString(nsCSSProperty aProperty, nsAString& aResult) const
{
// eCSSProperty_UNKNOWN gets used for some recursive calls below.
NS_ABORT_IF_FALSE((0 <= aProperty &&
aProperty <= eCSSProperty_COUNT_no_shorthands) ||
aProperty == eCSSProperty_UNKNOWN,
"property ID out of range");
nsCSSUnit unit = GetUnit();
if (unit == eCSSUnit_Null) {
return;
}
if (eCSSUnit_String <= unit && unit <= eCSSUnit_Attr) {
if (unit == eCSSUnit_Attr) {
aResult.AppendLiteral("attr(");
}
nsAutoString buffer;
GetStringValue(buffer);
if (unit == eCSSUnit_String) {
nsStyleUtil::AppendEscapedCSSString(buffer, aResult);
} else if (unit == eCSSUnit_Families) {
// XXX We really need to do *some* escaping.
aResult.Append(buffer);
} else {
nsStyleUtil::AppendEscapedCSSIdent(buffer, aResult);
}
}
else if (eCSSUnit_Array <= unit && unit <= eCSSUnit_Steps) {
switch (unit) {
case eCSSUnit_Counter: aResult.AppendLiteral("counter("); break;
case eCSSUnit_Counters: aResult.AppendLiteral("counters("); break;
case eCSSUnit_Cubic_Bezier: aResult.AppendLiteral("cubic-bezier("); break;
case eCSSUnit_Steps: aResult.AppendLiteral("steps("); break;
default: break;
}
nsCSSValue::Array *array = GetArrayValue();
bool mark = false;
for (size_t i = 0, i_end = array->Count(); i < i_end; ++i) {
if (mark && array->Item(i).GetUnit() != eCSSUnit_Null) {
if (unit == eCSSUnit_Array &&
eCSSProperty_transition_timing_function != aProperty)
aResult.AppendLiteral(" ");
else
aResult.AppendLiteral(", ");
}
if (unit == eCSSUnit_Steps && i == 1) {
NS_ABORT_IF_FALSE(array->Item(i).GetUnit() == eCSSUnit_Enumerated &&
(array->Item(i).GetIntValue() ==
NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_START ||
array->Item(i).GetIntValue() ==
NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_END),
"unexpected value");
if (array->Item(i).GetIntValue() ==
NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_START) {
aResult.AppendLiteral("start");
} else {
aResult.AppendLiteral("end");
}
continue;
}
nsCSSProperty prop =
((eCSSUnit_Counter <= unit && unit <= eCSSUnit_Counters) &&
i == array->Count() - 1)
? eCSSProperty_list_style_type : aProperty;
if (array->Item(i).GetUnit() != eCSSUnit_Null) {
array->Item(i).AppendToString(prop, aResult);
mark = true;
}
}
if (eCSSUnit_Array == unit &&
aProperty == eCSSProperty_transition_timing_function) {
aResult.AppendLiteral(")");
}
}
/* Although Function is backed by an Array, we'll handle it separately
* because it's a bit quirky.
*/
else if (eCSSUnit_Function == unit) {
const nsCSSValue::Array* array = GetArrayValue();
NS_ABORT_IF_FALSE(array->Count() >= 1,
"Functions must have at least one element for the name.");
/* Append the function name. */
const nsCSSValue& functionName = array->Item(0);
if (functionName.GetUnit() == eCSSUnit_Enumerated) {
// We assume that the first argument is always of nsCSSKeyword type.
const nsCSSKeyword functionId =
static_cast<nsCSSKeyword>(functionName.GetIntValue());
nsStyleUtil::AppendEscapedCSSIdent(
NS_ConvertASCIItoUTF16(nsCSSKeywords::GetStringValue(functionId)),
aResult);
} else {
functionName.AppendToString(aProperty, aResult);
}
aResult.AppendLiteral("(");
/* Now, step through the function contents, writing each of them as we go. */
for (size_t index = 1; index < array->Count(); ++index) {
array->Item(index).AppendToString(aProperty, aResult);
/* If we're not at the final element, append a comma. */
if (index + 1 != array->Count())
aResult.AppendLiteral(", ");
}
/* Finally, append the closing parenthesis. */
aResult.AppendLiteral(")");
}
else if (IsCalcUnit()) {
NS_ABORT_IF_FALSE(GetUnit() == eCSSUnit_Calc, "unexpected unit");
CSSValueSerializeCalcOps ops(aProperty, aResult);
css::SerializeCalc(*this, ops);
}
else if (eCSSUnit_Integer == unit) {
aResult.AppendInt(GetIntValue(), 10);
}
else if (eCSSUnit_Enumerated == unit) {
if (eCSSProperty_text_decoration_line == aProperty) {
int32_t intValue = GetIntValue();
if (NS_STYLE_TEXT_DECORATION_LINE_NONE == intValue) {
AppendASCIItoUTF16(nsCSSProps::LookupPropertyValue(aProperty, intValue),
aResult);
} else {
// Ignore the "override all" internal value.
// (It doesn't have a string representation.)
intValue &= ~NS_STYLE_TEXT_DECORATION_LINE_OVERRIDE_ALL;
nsStyleUtil::AppendBitmaskCSSValue(
aProperty, intValue,
NS_STYLE_TEXT_DECORATION_LINE_UNDERLINE,
NS_STYLE_TEXT_DECORATION_LINE_PREF_ANCHORS,
aResult);
}
}
else if (eCSSProperty_marks == aProperty) {
int32_t intValue = GetIntValue();
if (intValue == NS_STYLE_PAGE_MARKS_NONE) {
AppendASCIItoUTF16(nsCSSProps::LookupPropertyValue(aProperty, intValue),
aResult);
} else {
nsStyleUtil::AppendBitmaskCSSValue(aProperty, intValue,
NS_STYLE_PAGE_MARKS_CROP,
NS_STYLE_PAGE_MARKS_REGISTER,
aResult);
}
}
else {
const nsAFlatCString& name = nsCSSProps::LookupPropertyValue(aProperty, GetIntValue());
AppendASCIItoUTF16(name, aResult);
}
}
else if (eCSSUnit_EnumColor == unit) {
// we can lookup the property in the ColorTable and then
// get a string mapping the name
nsAutoCString str;
if (nsCSSProps::GetColorName(GetIntValue(), str)){
AppendASCIItoUTF16(str, aResult);
} else {
NS_ABORT_IF_FALSE(false, "bad color value");
}
}
else if (eCSSUnit_Color == unit) {
nscolor color = GetColorValue();
if (color == NS_RGBA(0, 0, 0, 0)) {
// Use the strictest match for 'transparent' so we do correct
// round-tripping of all other rgba() values.
aResult.AppendLiteral("transparent");
} else {
uint8_t a = NS_GET_A(color);
if (a < 255) {
aResult.AppendLiteral("rgba(");
} else {
aResult.AppendLiteral("rgb(");
}
NS_NAMED_LITERAL_STRING(comma, ", ");
aResult.AppendInt(NS_GET_R(color), 10);
aResult.Append(comma);
aResult.AppendInt(NS_GET_G(color), 10);
aResult.Append(comma);
aResult.AppendInt(NS_GET_B(color), 10);
if (a < 255) {
aResult.Append(comma);
aResult.AppendFloat(nsStyleUtil::ColorComponentToFloat(a));
}
aResult.Append(PRUnichar(')'));
}
}
else if (eCSSUnit_URL == unit || eCSSUnit_Image == unit) {
aResult.Append(NS_LITERAL_STRING("url("));
nsStyleUtil::AppendEscapedCSSString(
nsDependentString(GetOriginalURLValue()), aResult);
aResult.Append(NS_LITERAL_STRING(")"));
}
else if (eCSSUnit_Element == unit) {
aResult.Append(NS_LITERAL_STRING("-moz-element(#"));
nsAutoString tmpStr;
GetStringValue(tmpStr);
nsStyleUtil::AppendEscapedCSSIdent(tmpStr, aResult);
aResult.Append(NS_LITERAL_STRING(")"));
}
else if (eCSSUnit_Percent == unit) {
aResult.AppendFloat(GetPercentValue() * 100.0f);
}
else if (eCSSUnit_Percent < unit) { // length unit
aResult.AppendFloat(GetFloatValue());
}
else if (eCSSUnit_Gradient == unit) {
nsCSSValueGradient* gradient = GetGradientValue();
if (gradient->mIsLegacySyntax) {
aResult.AppendLiteral("-moz-");
}
if (gradient->mIsRepeating) {
aResult.AppendLiteral("repeating-");
}
if (gradient->mIsRadial) {
aResult.AppendLiteral("radial-gradient(");
} else {
aResult.AppendLiteral("linear-gradient(");
}
bool needSep = false;
if (gradient->mIsRadial && !gradient->mIsLegacySyntax) {
if (!gradient->mIsExplicitSize) {
if (gradient->GetRadialShape().GetUnit() != eCSSUnit_None) {
NS_ABORT_IF_FALSE(gradient->GetRadialShape().GetUnit() ==
eCSSUnit_Enumerated,
"bad unit for radial gradient shape");
int32_t intValue = gradient->GetRadialShape().GetIntValue();
NS_ABORT_IF_FALSE(intValue != NS_STYLE_GRADIENT_SHAPE_LINEAR,
"radial gradient with linear shape?!");
AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
nsCSSProps::kRadialGradientShapeKTable),
aResult);
needSep = true;
}
if (gradient->GetRadialSize().GetUnit() != eCSSUnit_None) {
if (needSep) {
aResult.AppendLiteral(" ");
}
NS_ABORT_IF_FALSE(gradient->GetRadialSize().GetUnit() ==
eCSSUnit_Enumerated,
"bad unit for radial gradient size");
int32_t intValue = gradient->GetRadialSize().GetIntValue();
AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
nsCSSProps::kRadialGradientSizeKTable),
aResult);
needSep = true;
}
} else {
NS_ABORT_IF_FALSE(gradient->GetRadiusX().GetUnit() != eCSSUnit_None,
"bad unit for radial gradient explicit size");
gradient->GetRadiusX().AppendToString(aProperty, aResult);
if (gradient->GetRadiusY().GetUnit() != eCSSUnit_None) {
aResult.AppendLiteral(" ");
gradient->GetRadiusY().AppendToString(aProperty, aResult);
}
needSep = true;
}
}
if (!gradient->mIsRadial && !gradient->mIsLegacySyntax) {
if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None ||
gradient->mBgPos.mYValue.GetUnit() != eCSSUnit_None) {
MOZ_ASSERT(gradient->mAngle.GetUnit() == eCSSUnit_None);
NS_ABORT_IF_FALSE(gradient->mBgPos.mXValue.GetUnit() == eCSSUnit_Enumerated &&
gradient->mBgPos.mYValue.GetUnit() == eCSSUnit_Enumerated,
"unexpected unit");
aResult.AppendLiteral("to");
if (!(gradient->mBgPos.mXValue.GetIntValue() & NS_STYLE_BG_POSITION_CENTER)) {
aResult.AppendLiteral(" ");
gradient->mBgPos.mXValue.AppendToString(eCSSProperty_background_position,
aResult);
}
if (!(gradient->mBgPos.mYValue.GetIntValue() & NS_STYLE_BG_POSITION_CENTER)) {
aResult.AppendLiteral(" ");
gradient->mBgPos.mYValue.AppendToString(eCSSProperty_background_position,
aResult);
}
needSep = true;
} else if (gradient->mAngle.GetUnit() != eCSSUnit_None) {
gradient->mAngle.AppendToString(aProperty, aResult);
needSep = true;
}
} else if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None ||
gradient->mBgPos.mYValue.GetUnit() != eCSSUnit_None ||
gradient->mAngle.GetUnit() != eCSSUnit_None) {
if (needSep) {
aResult.AppendLiteral(" ");
}
if (gradient->mIsRadial && !gradient->mIsLegacySyntax) {
aResult.AppendLiteral("at ");
}
if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None) {
gradient->mBgPos.mXValue.AppendToString(eCSSProperty_background_position,
aResult);
aResult.AppendLiteral(" ");
}
if (gradient->mBgPos.mXValue.GetUnit() != eCSSUnit_None) {
gradient->mBgPos.mYValue.AppendToString(eCSSProperty_background_position,
aResult);
aResult.AppendLiteral(" ");
}
if (gradient->mAngle.GetUnit() != eCSSUnit_None) {
NS_ABORT_IF_FALSE(gradient->mIsLegacySyntax,
"angle is allowed only for legacy syntax");
gradient->mAngle.AppendToString(aProperty, aResult);
}
needSep = true;
}
if (gradient->mIsRadial && gradient->mIsLegacySyntax &&
(gradient->GetRadialShape().GetUnit() != eCSSUnit_None ||
gradient->GetRadialSize().GetUnit() != eCSSUnit_None)) {
MOZ_ASSERT(!gradient->mIsExplicitSize);
if (needSep) {
aResult.AppendLiteral(", ");
}
if (gradient->GetRadialShape().GetUnit() != eCSSUnit_None) {
NS_ABORT_IF_FALSE(gradient->GetRadialShape().GetUnit() ==
eCSSUnit_Enumerated,
"bad unit for radial gradient shape");
int32_t intValue = gradient->GetRadialShape().GetIntValue();
NS_ABORT_IF_FALSE(intValue != NS_STYLE_GRADIENT_SHAPE_LINEAR,
"radial gradient with linear shape?!");
AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
nsCSSProps::kRadialGradientShapeKTable),
aResult);
aResult.AppendLiteral(" ");
}
if (gradient->GetRadialSize().GetUnit() != eCSSUnit_None) {
NS_ABORT_IF_FALSE(gradient->GetRadialSize().GetUnit() ==
eCSSUnit_Enumerated,
"bad unit for radial gradient size");
int32_t intValue = gradient->GetRadialSize().GetIntValue();
AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(intValue,
nsCSSProps::kRadialGradientSizeKTable),
aResult);
}
needSep = true;
}
if (needSep) {
aResult.AppendLiteral(", ");
}
for (uint32_t i = 0 ;;) {
gradient->mStops[i].mColor.AppendToString(aProperty, aResult);
if (gradient->mStops[i].mLocation.GetUnit() != eCSSUnit_None) {
aResult.AppendLiteral(" ");
gradient->mStops[i].mLocation.AppendToString(aProperty, aResult);
}
if (++i == gradient->mStops.Length()) {
break;
}
aResult.AppendLiteral(", ");
}
aResult.AppendLiteral(")");
} else if (eCSSUnit_Pair == unit) {
GetPairValue().AppendToString(aProperty, aResult);
} else if (eCSSUnit_Triplet == unit) {
GetTripletValue().AppendToString(aProperty, aResult);
} else if (eCSSUnit_Rect == unit) {
GetRectValue().AppendToString(aProperty, aResult);
} else if (eCSSUnit_List == unit || eCSSUnit_ListDep == unit) {
GetListValue()->AppendToString(aProperty, aResult);
} else if (eCSSUnit_PairList == unit || eCSSUnit_PairListDep == unit) {
switch (aProperty) {
case eCSSProperty_font_feature_settings:
nsStyleUtil::AppendFontFeatureSettings(*this, aResult);
break;
default:
GetPairListValue()->AppendToString(aProperty, aResult);
break;
}
}
switch (unit) {
case eCSSUnit_Null: break;
case eCSSUnit_Auto: aResult.AppendLiteral("auto"); break;
case eCSSUnit_Inherit: aResult.AppendLiteral("inherit"); break;
case eCSSUnit_Initial: aResult.AppendLiteral("-moz-initial"); break;
case eCSSUnit_None: aResult.AppendLiteral("none"); break;
case eCSSUnit_Normal: aResult.AppendLiteral("normal"); break;
case eCSSUnit_System_Font: aResult.AppendLiteral("-moz-use-system-font"); break;
case eCSSUnit_All: aResult.AppendLiteral("all"); break;
case eCSSUnit_Dummy:
case eCSSUnit_DummyInherit:
NS_ABORT_IF_FALSE(false, "should never serialize");
break;
case eCSSUnit_String: break;
case eCSSUnit_Ident: break;
case eCSSUnit_Families: break;
case eCSSUnit_URL: break;
case eCSSUnit_Image: break;
case eCSSUnit_Element: break;
case eCSSUnit_Array: break;
case eCSSUnit_Attr:
case eCSSUnit_Cubic_Bezier:
case eCSSUnit_Steps:
case eCSSUnit_Counter:
case eCSSUnit_Counters: aResult.Append(PRUnichar(')')); break;
case eCSSUnit_Local_Font: break;
case eCSSUnit_Font_Format: break;
case eCSSUnit_Function: break;
case eCSSUnit_Calc: break;
case eCSSUnit_Calc_Plus: break;
case eCSSUnit_Calc_Minus: break;
case eCSSUnit_Calc_Times_L: break;
case eCSSUnit_Calc_Times_R: break;
case eCSSUnit_Calc_Divided: break;
case eCSSUnit_Integer: break;
case eCSSUnit_Enumerated: break;
case eCSSUnit_EnumColor: break;
case eCSSUnit_Color: break;
case eCSSUnit_Percent: aResult.Append(PRUnichar('%')); break;
case eCSSUnit_Number: break;
case eCSSUnit_Gradient: break;
case eCSSUnit_Pair: break;
case eCSSUnit_Triplet: break;
case eCSSUnit_Rect: break;
case eCSSUnit_List: break;
case eCSSUnit_ListDep: break;
case eCSSUnit_PairList: break;
case eCSSUnit_PairListDep: break;
case eCSSUnit_Inch: aResult.AppendLiteral("in"); break;
case eCSSUnit_Millimeter: aResult.AppendLiteral("mm"); break;
case eCSSUnit_PhysicalMillimeter: aResult.AppendLiteral("mozmm"); break;
case eCSSUnit_Centimeter: aResult.AppendLiteral("cm"); break;
case eCSSUnit_Point: aResult.AppendLiteral("pt"); break;
case eCSSUnit_Pica: aResult.AppendLiteral("pc"); break;
case eCSSUnit_EM: aResult.AppendLiteral("em"); break;
case eCSSUnit_XHeight: aResult.AppendLiteral("ex"); break;
case eCSSUnit_Char: aResult.AppendLiteral("ch"); break;
case eCSSUnit_RootEM: aResult.AppendLiteral("rem"); break;
case eCSSUnit_Pixel: aResult.AppendLiteral("px"); break;
case eCSSUnit_Degree: aResult.AppendLiteral("deg"); break;
case eCSSUnit_Grad: aResult.AppendLiteral("grad"); break;
case eCSSUnit_Radian: aResult.AppendLiteral("rad"); break;
case eCSSUnit_Turn: aResult.AppendLiteral("turn"); break;
case eCSSUnit_Hertz: aResult.AppendLiteral("Hz"); break;
case eCSSUnit_Kilohertz: aResult.AppendLiteral("kHz"); break;
case eCSSUnit_Seconds: aResult.Append(PRUnichar('s')); break;
case eCSSUnit_Milliseconds: aResult.AppendLiteral("ms"); break;
}
}
size_t
nsCSSValue::SizeOfExcludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = 0;
switch (GetUnit()) {
// No value: nothing extra to measure.
case eCSSUnit_Null:
case eCSSUnit_Auto:
case eCSSUnit_Inherit:
case eCSSUnit_Initial:
case eCSSUnit_None:
case eCSSUnit_Normal:
case eCSSUnit_System_Font:
case eCSSUnit_All:
case eCSSUnit_Dummy:
case eCSSUnit_DummyInherit:
break;
// String
case eCSSUnit_String:
case eCSSUnit_Ident:
case eCSSUnit_Families:
case eCSSUnit_Attr:
case eCSSUnit_Local_Font:
case eCSSUnit_Font_Format:
case eCSSUnit_Element:
n += mValue.mString->SizeOfIncludingThisIfUnshared(aMallocSizeOf);
break;
// Array
case eCSSUnit_Array:
case eCSSUnit_Counter:
case eCSSUnit_Counters:
case eCSSUnit_Cubic_Bezier:
case eCSSUnit_Steps:
case eCSSUnit_Function:
case eCSSUnit_Calc:
case eCSSUnit_Calc_Plus:
case eCSSUnit_Calc_Minus:
case eCSSUnit_Calc_Times_L:
case eCSSUnit_Calc_Times_R:
case eCSSUnit_Calc_Divided:
break;
// URL
case eCSSUnit_URL:
n += mValue.mURL->SizeOfIncludingThis(aMallocSizeOf);
break;
// Image
case eCSSUnit_Image:
// Not yet measured. Measurement may be added later if DMD finds it
// worthwhile.
break;
// Gradient
case eCSSUnit_Gradient:
n += mValue.mGradient->SizeOfIncludingThis(aMallocSizeOf);
break;
// Pair
case eCSSUnit_Pair:
n += mValue.mPair->SizeOfIncludingThis(aMallocSizeOf);
break;
// Triplet
case eCSSUnit_Triplet:
n += mValue.mTriplet->SizeOfIncludingThis(aMallocSizeOf);
break;
// Rect
case eCSSUnit_Rect:
n += mValue.mRect->SizeOfIncludingThis(aMallocSizeOf);
break;
// List
case eCSSUnit_List:
n += mValue.mList->SizeOfIncludingThis(aMallocSizeOf);
break;
// ListDep: not measured because it's non-owning.
case eCSSUnit_ListDep:
break;
// PairList
case eCSSUnit_PairList:
n += mValue.mPairList->SizeOfIncludingThis(aMallocSizeOf);
break;
// PairListDep: not measured because it's non-owning.
case eCSSUnit_PairListDep:
break;
// Int: nothing extra to measure.
case eCSSUnit_Integer:
case eCSSUnit_Enumerated:
case eCSSUnit_EnumColor:
break;
// Color: nothing extra to measure.
case eCSSUnit_Color:
break;
// Float: nothing extra to measure.
case eCSSUnit_Percent:
case eCSSUnit_Number:
case eCSSUnit_PhysicalMillimeter:
case eCSSUnit_EM:
case eCSSUnit_XHeight:
case eCSSUnit_Char:
case eCSSUnit_RootEM:
case eCSSUnit_Point:
case eCSSUnit_Inch:
case eCSSUnit_Millimeter:
case eCSSUnit_Centimeter:
case eCSSUnit_Pica:
case eCSSUnit_Pixel:
case eCSSUnit_Degree:
case eCSSUnit_Grad:
case eCSSUnit_Turn:
case eCSSUnit_Radian:
case eCSSUnit_Hertz:
case eCSSUnit_Kilohertz:
case eCSSUnit_Seconds:
case eCSSUnit_Milliseconds:
break;
default:
NS_ABORT_IF_FALSE(false, "bad nsCSSUnit");
break;
}
return n;
}
// --- nsCSSValueList -----------------
nsCSSValueList::~nsCSSValueList()
{
MOZ_COUNT_DTOR(nsCSSValueList);
NS_CSS_DELETE_LIST_MEMBER(nsCSSValueList, this, mNext);
}
nsCSSValueList*
nsCSSValueList::Clone() const
{
nsCSSValueList* result = new nsCSSValueList(*this);
nsCSSValueList* dest = result;
const nsCSSValueList* src = this->mNext;
while (src) {
dest->mNext = new nsCSSValueList(*src);
dest = dest->mNext;
src = src->mNext;
}
return result;
}
void
nsCSSValueList::CloneInto(nsCSSValueList* aList) const
{
NS_ASSERTION(!aList->mNext, "Must be an empty list!");
aList->mValue = mValue;
aList->mNext = mNext ? mNext->Clone() : nullptr;
}
void
nsCSSValueList::AppendToString(nsCSSProperty aProperty, nsAString& aResult) const
{
const nsCSSValueList* val = this;
for (;;) {
val->mValue.AppendToString(aProperty, aResult);
val = val->mNext;
if (!val)
break;
if (nsCSSProps::PropHasFlags(aProperty,
CSS_PROPERTY_VALUE_LIST_USES_COMMAS))
aResult.Append(PRUnichar(','));
aResult.Append(PRUnichar(' '));
}
}
bool
nsCSSValueList::operator==(const nsCSSValueList& aOther) const
{
if (this == &aOther)
return true;
const nsCSSValueList *p1 = this, *p2 = &aOther;
for ( ; p1 && p2; p1 = p1->mNext, p2 = p2->mNext) {
if (p1->mValue != p2->mValue)
return false;
}
return !p1 && !p2; // true if same length, false otherwise
}
size_t
nsCSSValueList::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = 0;
const nsCSSValueList* v = this;
while (v) {
n += aMallocSizeOf(v);
n += v->mValue.SizeOfExcludingThis(aMallocSizeOf);
v = v->mNext;
}
return n;
}
size_t
nsCSSValueList_heap::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += mValue.SizeOfExcludingThis(aMallocSizeOf);
n += mNext ? mNext->SizeOfIncludingThis(aMallocSizeOf) : 0;
return n;
}
// --- nsCSSRect -----------------
nsCSSRect::nsCSSRect(void)
{
MOZ_COUNT_CTOR(nsCSSRect);
}
nsCSSRect::nsCSSRect(const nsCSSRect& aCopy)
: mTop(aCopy.mTop),
mRight(aCopy.mRight),
mBottom(aCopy.mBottom),
mLeft(aCopy.mLeft)
{
MOZ_COUNT_CTOR(nsCSSRect);
}
nsCSSRect::~nsCSSRect()
{
MOZ_COUNT_DTOR(nsCSSRect);
}
void
nsCSSRect::AppendToString(nsCSSProperty aProperty, nsAString& aResult) const
{
NS_ABORT_IF_FALSE(mTop.GetUnit() != eCSSUnit_Null &&
mTop.GetUnit() != eCSSUnit_Inherit &&
mTop.GetUnit() != eCSSUnit_Initial,
"parser should have used a bare value");
if (eCSSProperty_border_image_slice == aProperty ||
eCSSProperty_border_image_width == aProperty ||
eCSSProperty_border_image_outset == aProperty) {
NS_NAMED_LITERAL_STRING(space, " ");
mTop.AppendToString(aProperty, aResult);
aResult.Append(space);
mRight.AppendToString(aProperty, aResult);
aResult.Append(space);
mBottom.AppendToString(aProperty, aResult);
aResult.Append(space);
mLeft.AppendToString(aProperty, aResult);
} else {
NS_NAMED_LITERAL_STRING(comma, ", ");
aResult.AppendLiteral("rect(");
mTop.AppendToString(aProperty, aResult);
aResult.Append(comma);
mRight.AppendToString(aProperty, aResult);
aResult.Append(comma);
mBottom.AppendToString(aProperty, aResult);
aResult.Append(comma);
mLeft.AppendToString(aProperty, aResult);
aResult.Append(PRUnichar(')'));
}
}
void nsCSSRect::SetAllSidesTo(const nsCSSValue& aValue)
{
mTop = aValue;
mRight = aValue;
mBottom = aValue;
mLeft = aValue;
}
size_t
nsCSSRect_heap::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += mTop .SizeOfExcludingThis(aMallocSizeOf);
n += mRight .SizeOfExcludingThis(aMallocSizeOf);
n += mBottom.SizeOfExcludingThis(aMallocSizeOf);
n += mLeft .SizeOfExcludingThis(aMallocSizeOf);
return n;
}
MOZ_STATIC_ASSERT(NS_SIDE_TOP == 0 && NS_SIDE_RIGHT == 1 &&
NS_SIDE_BOTTOM == 2 && NS_SIDE_LEFT == 3,
"box side constants not top/right/bottom/left == 0/1/2/3");
/* static */ const nsCSSRect::side_type nsCSSRect::sides[4] = {
&nsCSSRect::mTop,
&nsCSSRect::mRight,
&nsCSSRect::mBottom,
&nsCSSRect::mLeft,
};
// --- nsCSSValuePair -----------------
void
nsCSSValuePair::AppendToString(nsCSSProperty aProperty,
nsAString& aResult) const
{
mXValue.AppendToString(aProperty, aResult);
if (mYValue.GetUnit() != eCSSUnit_Null) {
aResult.Append(PRUnichar(' '));
mYValue.AppendToString(aProperty, aResult);
}
}
size_t
nsCSSValuePair::SizeOfExcludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = 0;
n += mXValue.SizeOfExcludingThis(aMallocSizeOf);
n += mYValue.SizeOfExcludingThis(aMallocSizeOf);
return n;
}
size_t
nsCSSValuePair_heap::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += mXValue.SizeOfExcludingThis(aMallocSizeOf);
n += mYValue.SizeOfExcludingThis(aMallocSizeOf);
return n;
}
// --- nsCSSValueTriplet -----------------
void
nsCSSValueTriplet::AppendToString(nsCSSProperty aProperty,
nsAString& aResult) const
{
mXValue.AppendToString(aProperty, aResult);
if (mYValue.GetUnit() != eCSSUnit_Null) {
aResult.Append(PRUnichar(' '));
mYValue.AppendToString(aProperty, aResult);
if (mZValue.GetUnit() != eCSSUnit_Null) {
aResult.Append(PRUnichar(' '));
mZValue.AppendToString(aProperty, aResult);
}
}
}
size_t
nsCSSValueTriplet_heap::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += mXValue.SizeOfExcludingThis(aMallocSizeOf);
n += mYValue.SizeOfExcludingThis(aMallocSizeOf);
n += mZValue.SizeOfExcludingThis(aMallocSizeOf);
return n;
}
// --- nsCSSValuePairList -----------------
nsCSSValuePairList::~nsCSSValuePairList()
{
MOZ_COUNT_DTOR(nsCSSValuePairList);
NS_CSS_DELETE_LIST_MEMBER(nsCSSValuePairList, this, mNext);
}
nsCSSValuePairList*
nsCSSValuePairList::Clone() const
{
nsCSSValuePairList* result = new nsCSSValuePairList(*this);
nsCSSValuePairList* dest = result;
const nsCSSValuePairList* src = this->mNext;
while (src) {
dest->mNext = new nsCSSValuePairList(*src);
dest = dest->mNext;
src = src->mNext;
}
return result;
}
void
nsCSSValuePairList::AppendToString(nsCSSProperty aProperty,
nsAString& aResult) const
{
const nsCSSValuePairList* item = this;
for (;;) {
NS_ABORT_IF_FALSE(item->mXValue.GetUnit() != eCSSUnit_Null,
"unexpected null unit");
item->mXValue.AppendToString(aProperty, aResult);
if (item->mXValue.GetUnit() != eCSSUnit_Inherit &&
item->mXValue.GetUnit() != eCSSUnit_Initial &&
item->mYValue.GetUnit() != eCSSUnit_Null) {
aResult.Append(PRUnichar(' '));
item->mYValue.AppendToString(aProperty, aResult);
}
item = item->mNext;
if (!item)
break;
if (nsCSSProps::PropHasFlags(aProperty,
CSS_PROPERTY_VALUE_LIST_USES_COMMAS))
aResult.Append(PRUnichar(','));
aResult.Append(PRUnichar(' '));
}
}
bool
nsCSSValuePairList::operator==(const nsCSSValuePairList& aOther) const
{
if (this == &aOther)
return true;
const nsCSSValuePairList *p1 = this, *p2 = &aOther;
for ( ; p1 && p2; p1 = p1->mNext, p2 = p2->mNext) {
if (p1->mXValue != p2->mXValue ||
p1->mYValue != p2->mYValue)
return false;
}
return !p1 && !p2; // true if same length, false otherwise
}
size_t
nsCSSValuePairList::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = 0;
const nsCSSValuePairList* v = this;
while (v) {
n += aMallocSizeOf(v);
n += v->mXValue.SizeOfExcludingThis(aMallocSizeOf);
n += v->mYValue.SizeOfExcludingThis(aMallocSizeOf);
v = v->mNext;
}
return n;
}
size_t
nsCSSValuePairList_heap::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += mXValue.SizeOfExcludingThis(aMallocSizeOf);
n += mYValue.SizeOfExcludingThis(aMallocSizeOf);
n += mNext ? mNext->SizeOfIncludingThis(aMallocSizeOf) : 0;
return n;
}
size_t
nsCSSValue::Array::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
for (size_t i = 0; i < mCount; i++) {
n += mArray[i].SizeOfExcludingThis(aMallocSizeOf);
}
return n;
}
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
css::URLValue::URLValue(nsIURI* aURI, nsStringBuffer* aString,
nsIURI* aReferrer, nsIPrincipal* aOriginPrincipal)
: mURI(aURI),
mString(aString),
mReferrer(aReferrer),
mOriginPrincipal(aOriginPrincipal),
mURIResolved(true)
{
NS_ABORT_IF_FALSE(aOriginPrincipal, "Must have an origin principal");
mString->AddRef();
}
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
css::URLValue::URLValue(nsStringBuffer* aString, nsIURI* aBaseURI,
nsIURI* aReferrer, nsIPrincipal* aOriginPrincipal)
: mURI(aBaseURI),
mString(aString),
mReferrer(aReferrer),
mOriginPrincipal(aOriginPrincipal),
mURIResolved(false)
{
NS_ABORT_IF_FALSE(aOriginPrincipal, "Must have an origin principal");
mString->AddRef();
}
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
css::URLValue::~URLValue()
{
mString->Release();
}
bool
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
css::URLValue::operator==(const URLValue& aOther) const
{
bool eq;
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
return NS_strcmp(nsCSSValue::GetBufferValue(mString),
nsCSSValue::GetBufferValue(aOther.mString)) == 0 &&
(GetURI() == aOther.GetURI() || // handles null == null
(mURI && aOther.mURI &&
NS_SUCCEEDED(mURI->Equals(aOther.mURI, &eq)) &&
eq)) &&
2007-07-18 15:17:30 -07:00
(mOriginPrincipal == aOther.mOriginPrincipal ||
(NS_SUCCEEDED(mOriginPrincipal->Equals(aOther.mOriginPrincipal,
&eq)) && eq));
}
bool
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
css::URLValue::URIEquals(const URLValue& aOther) const
2007-07-18 15:17:30 -07:00
{
NS_ABORT_IF_FALSE(mURIResolved && aOther.mURIResolved,
"How do you know the URIs aren't null?");
bool eq;
// Worth comparing GetURI() to aOther.GetURI() and mOriginPrincipal to
2007-07-18 15:17:30 -07:00
// aOther.mOriginPrincipal, because in the (probably common) case when this
// value was one of the ones that in fact did not change this will be our
// fast path to equality
return (mURI == aOther.mURI ||
(NS_SUCCEEDED(mURI->Equals(aOther.mURI, &eq)) && eq)) &&
(mOriginPrincipal == aOther.mOriginPrincipal ||
(NS_SUCCEEDED(mOriginPrincipal->Equals(aOther.mOriginPrincipal,
&eq)) && eq));
}
nsIURI*
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
css::URLValue::GetURI() const
{
if (!mURIResolved) {
mURIResolved = true;
// Be careful to not null out mURI before we've passed it as the base URI
nsCOMPtr<nsIURI> newURI;
NS_NewURI(getter_AddRefs(newURI),
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
NS_ConvertUTF16toUTF8(nsCSSValue::GetBufferValue(mString)),
nullptr, mURI);
newURI.swap(mURI);
}
return mURI;
}
size_t
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
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css::URLValue::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
// This string is unshared.
n += mString->SizeOfIncludingThisMustBeUnshared(aMallocSizeOf);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mURI
// - mReferrer
// - mOriginPrincipal
return n;
}
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
css::ImageValue::ImageValue(nsIURI* aURI, nsStringBuffer* aString,
nsIURI* aReferrer, nsIPrincipal* aOriginPrincipal,
nsIDocument* aDocument)
: URLValue(aURI, aString, aReferrer, aOriginPrincipal)
{
if (aDocument->GetOriginalDocument()) {
aDocument = aDocument->GetOriginalDocument();
}
mRequests.Init();
aDocument->StyleImageLoader()->LoadImage(aURI, aOriginPrincipal, aReferrer,
this);
}
static PLDHashOperator
ClearRequestHashtable(nsISupports* aKey, nsCOMPtr<imgIRequest>& aValue,
void* aClosure)
{
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
mozilla::css::ImageValue* image =
static_cast<mozilla::css::ImageValue*>(aClosure);
nsIDocument* doc = static_cast<nsIDocument*>(aKey);
#ifdef DEBUG
{
nsCOMPtr<nsIDocument> slowDoc = do_QueryInterface(aKey);
MOZ_ASSERT(slowDoc == doc);
}
#endif
if (doc) {
doc->StyleImageLoader()->DeregisterCSSImage(image);
}
if (aValue) {
aValue->CancelAndForgetObserver(NS_BINDING_ABORTED);
}
return PL_DHASH_REMOVE;
}
Bug 783162: Make mapped attributes hold the image alive. r=bz The nsCSSValue in nsGenericHTMLElement::MapBackgroundInto is a temporary. This causes a problem after Bug 697230 landed, because the nsCSSValue::Image we put into that value is destroyed once we're done doing style stuff. Previously the nsImageLoader would grab the request off the nsCSSValue::Image and hold it alive. Bug 697230 changed the behavior here; now when the nsCSSValue::Image is destroyed it tells the image loader to drop the request. The result is that all the references to the request are dropped and the frame is never told it has a background. The solution is to keep the nsCSSValue::Image alive longer. This patch adds two new types of nsAttrValue. The first is an nsCSSValue::URL. A ParseBackgroundAttribute method is added on nsGenericHTMLElement that the relevant elements (body/td/th/table/tr/tbody/thead/tfoot) call that parses background into an nsCSSValue::URL. The second is an nsCSSValue::Image. nsGenericHTMLElement::MapBackgroundInto attempts to convert the nsCSSValue::URL into an nsCSSValue::Image by kicking off the image load. The result is that image loads are only started when the element is actually visible. This also mirrors the way background-image works. This also allows us to fix two longstanding bugs in this code. Since MapBackgroundInto doesn't have a pointer to the actual element, it relied on grabbing the principal of the document. Now we can grab the principal of the node in ParseBackgroundAttribute. MapBackgroundInto also has no way to get at the element's base URI (to honor xml:base), which is now possible in ParseBackgroundAttribute. nsCSSValue::[Image|URL] have also been moved to be mozilla::css::[Image|URL]Value. nsAttrValue.h is included in external linkage code, so it can't include nsCSSValue.h to get the declarations of nsCSSValue::[Image|URL], and nested classes can't be forward declared. Moving the classes to a namespace solves the problem. Finally some old inoperative quirks mode code was removed. This code has done nothing since Bug 273078 was landed in 2004.
2012-08-24 10:50:49 -07:00
css::ImageValue::~ImageValue()
{
mRequests.Enumerate(&ClearRequestHashtable, this);
}
nsCSSValueGradientStop::nsCSSValueGradientStop()
: mLocation(eCSSUnit_None),
mColor(eCSSUnit_Null)
{
MOZ_COUNT_CTOR(nsCSSValueGradientStop);
}
nsCSSValueGradientStop::nsCSSValueGradientStop(const nsCSSValueGradientStop& aOther)
: mLocation(aOther.mLocation),
mColor(aOther.mColor)
{
MOZ_COUNT_CTOR(nsCSSValueGradientStop);
}
nsCSSValueGradientStop::~nsCSSValueGradientStop()
{
MOZ_COUNT_DTOR(nsCSSValueGradientStop);
}
size_t
nsCSSValueGradientStop::SizeOfExcludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = 0;
n += mLocation.SizeOfExcludingThis(aMallocSizeOf);
n += mColor .SizeOfExcludingThis(aMallocSizeOf);
return n;
}
nsCSSValueGradient::nsCSSValueGradient(bool aIsRadial,
bool aIsRepeating)
: mIsRadial(aIsRadial),
mIsRepeating(aIsRepeating),
mIsLegacySyntax(false),
mIsExplicitSize(false),
mBgPos(eCSSUnit_None),
mAngle(eCSSUnit_None)
{
mRadialValues[0].SetNoneValue();
mRadialValues[1].SetNoneValue();
}
size_t
nsCSSValueGradient::SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += mBgPos.SizeOfExcludingThis(aMallocSizeOf);
n += mAngle.SizeOfExcludingThis(aMallocSizeOf);
n += mRadialValues[0].SizeOfExcludingThis(aMallocSizeOf);
n += mRadialValues[1].SizeOfExcludingThis(aMallocSizeOf);
n += mStops.SizeOfExcludingThis(aMallocSizeOf);
for (uint32_t i = 0; i < mStops.Length(); i++) {
n += mStops[i].SizeOfExcludingThis(aMallocSizeOf);
}
return n;
}
// --- nsCSSCornerSizes -----------------
nsCSSCornerSizes::nsCSSCornerSizes(void)
{
MOZ_COUNT_CTOR(nsCSSCornerSizes);
}
nsCSSCornerSizes::nsCSSCornerSizes(const nsCSSCornerSizes& aCopy)
: mTopLeft(aCopy.mTopLeft),
mTopRight(aCopy.mTopRight),
mBottomRight(aCopy.mBottomRight),
mBottomLeft(aCopy.mBottomLeft)
{
MOZ_COUNT_CTOR(nsCSSCornerSizes);
}
nsCSSCornerSizes::~nsCSSCornerSizes()
{
MOZ_COUNT_DTOR(nsCSSCornerSizes);
}
void
nsCSSCornerSizes::Reset()
{
NS_FOR_CSS_FULL_CORNERS(corner) {
this->GetCorner(corner).Reset();
}
}
MOZ_STATIC_ASSERT(NS_CORNER_TOP_LEFT == 0 && NS_CORNER_TOP_RIGHT == 1 &&
NS_CORNER_BOTTOM_RIGHT == 2 && NS_CORNER_BOTTOM_LEFT == 3,
"box corner constants not tl/tr/br/bl == 0/1/2/3");
/* static */ const nsCSSCornerSizes::corner_type
nsCSSCornerSizes::corners[4] = {
&nsCSSCornerSizes::mTopLeft,
&nsCSSCornerSizes::mTopRight,
&nsCSSCornerSizes::mBottomRight,
&nsCSSCornerSizes::mBottomLeft,
};