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gecko-dev/layout/style/nsComputedDOMStyle.cpp

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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 returned from element.getComputedStyle() */
#include "nsComputedDOMStyle.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/Preferences.h"
#include "nsError.h"
#include "nsIDOMCSSPrimitiveValue.h"
#include "nsIFrame.h"
#include "nsIFrameInlines.h"
#include "nsStyleContext.h"
#include "nsIScrollableFrame.h"
#include "nsContentUtils.h"
#include "nsIContent.h"
#include "nsDOMCSSRect.h"
#include "nsDOMCSSRGBColor.h"
#include "nsDOMCSSValueList.h"
#include "nsFlexContainerFrame.h"
#include "nsGridContainerFrame.h"
#include "nsGkAtoms.h"
#include "mozilla/ReflowInput.h"
#include "nsStyleUtil.h"
#include "nsStyleStructInlines.h"
#include "nsROCSSPrimitiveValue.h"
#include "nsPresContext.h"
#include "nsIDocument.h"
#include "nsCSSPseudoElements.h"
#include "mozilla/StyleSetHandle.h"
#include "mozilla/StyleSetHandleInlines.h"
#include "mozilla/GeckoRestyleManager.h"
#include "mozilla/RestyleManagerInlines.h"
#include "imgIRequest.h"
#include "nsLayoutUtils.h"
#include "nsCSSKeywords.h"
#include "nsStyleCoord.h"
#include "nsDisplayList.h"
#include "nsDOMCSSDeclaration.h"
#include "nsStyleTransformMatrix.h"
#include "mozilla/dom/Element.h"
#include "prtime.h"
#include "nsWrapperCacheInlines.h"
#include "mozilla/AppUnits.h"
#include <algorithm>
using namespace mozilla;
using namespace mozilla::dom;
#if defined(DEBUG_bzbarsky) || defined(DEBUG_caillon)
#define DEBUG_ComputedDOMStyle
#endif
/*
* This is the implementation of the readonly CSSStyleDeclaration that is
* returned by the getComputedStyle() function.
*/
already_AddRefed<nsComputedDOMStyle>
NS_NewComputedDOMStyle(dom::Element* aElement, const nsAString& aPseudoElt,
nsIPresShell* aPresShell,
nsComputedDOMStyle::AnimationFlag aFlag)
{
RefPtr<nsComputedDOMStyle> computedStyle;
computedStyle = new nsComputedDOMStyle(aElement, aPseudoElt,
aPresShell, aFlag);
return computedStyle.forget();
}
static nsDOMCSSValueList*
GetROCSSValueList(bool aCommaDelimited)
{
return new nsDOMCSSValueList(aCommaDelimited, true);
}
template<typename T>
already_AddRefed<CSSValue>
GetBackgroundList(T nsStyleImageLayers::Layer::* aMember,
uint32_t nsStyleImageLayers::* aCount,
const nsStyleImageLayers& aLayers,
const nsCSSProps::KTableEntry aTable[])
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (uint32_t i = 0, i_end = aLayers.*aCount; i < i_end; ++i) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(aLayers.mLayers[i].*aMember, aTable));
valueList->AppendCSSValue(val.forget());
}
return valueList.forget();
}
/**
* An object that represents the ordered set of properties that are exposed on
* an nsComputedDOMStyle object and how their computed values can be obtained.
*/
struct nsComputedStyleMap
{
friend class nsComputedDOMStyle;
struct Entry
{
// Create a pointer-to-member-function type.
typedef already_AddRefed<CSSValue> (nsComputedDOMStyle::*ComputeMethod)();
nsCSSPropertyID mProperty;
ComputeMethod mGetter;
bool IsLayoutFlushNeeded() const
{
return nsCSSProps::PropHasFlags(mProperty,
CSS_PROPERTY_GETCS_NEEDS_LAYOUT_FLUSH);
}
bool IsEnabled() const
{
return nsCSSProps::IsEnabled(mProperty, CSSEnabledState::eForAllContent);
}
};
// We define this enum just to count the total number of properties that can
// be exposed on an nsComputedDOMStyle, including properties that may be
// disabled.
enum {
#define COMPUTED_STYLE_PROP(prop_, method_) \
eComputedStyleProperty_##prop_,
#include "nsComputedDOMStylePropertyList.h"
#undef COMPUTED_STYLE_PROP
eComputedStyleProperty_COUNT
};
/**
* Returns the number of properties that should be exposed on an
* nsComputedDOMStyle, ecxluding any disabled properties.
*/
uint32_t Length()
{
Update();
return mExposedPropertyCount;
}
/**
* Returns the property at the given index in the list of properties
* that should be exposed on an nsComputedDOMStyle, excluding any
* disabled properties.
*/
nsCSSPropertyID PropertyAt(uint32_t aIndex)
{
Update();
return kEntries[EntryIndex(aIndex)].mProperty;
}
/**
* Searches for and returns the computed style map entry for the given
* property, or nullptr if the property is not exposed on nsComputedDOMStyle
* or is currently disabled.
*/
const Entry* FindEntryForProperty(nsCSSPropertyID aPropID)
{
Update();
for (uint32_t i = 0; i < mExposedPropertyCount; i++) {
const Entry* entry = &kEntries[EntryIndex(i)];
if (entry->mProperty == aPropID) {
return entry;
}
}
return nullptr;
}
/**
* Records that mIndexMap needs updating, due to prefs changing that could
* affect the set of properties exposed on an nsComputedDOMStyle.
*/
void MarkDirty() { mExposedPropertyCount = 0; }
// The member variables are public so that we can use an initializer in
// nsComputedDOMStyle::GetComputedStyleMap. Use the member functions
// above to get information from this object.
/**
* An entry for each property that can be exposed on an nsComputedDOMStyle.
*/
const Entry kEntries[eComputedStyleProperty_COUNT];
/**
* The number of properties that should be exposed on an nsComputedDOMStyle.
* This will be less than eComputedStyleProperty_COUNT if some property
* prefs are disabled. A value of 0 indicates that it and mIndexMap are out
* of date.
*/
uint32_t mExposedPropertyCount;
/**
* A map of indexes on the nsComputedDOMStyle object to indexes into kEntries.
*/
uint32_t mIndexMap[eComputedStyleProperty_COUNT];
private:
/**
* Returns whether mExposedPropertyCount and mIndexMap are out of date.
*/
bool IsDirty() { return mExposedPropertyCount == 0; }
/**
* Updates mExposedPropertyCount and mIndexMap to take into account properties
* whose prefs are currently disabled.
*/
void Update();
/**
* Maps an nsComputedDOMStyle indexed getter index to an index into kEntries.
*/
uint32_t EntryIndex(uint32_t aIndex) const
{
MOZ_ASSERT(aIndex < mExposedPropertyCount);
return mIndexMap[aIndex];
}
};
void
nsComputedStyleMap::Update()
{
if (!IsDirty()) {
return;
}
uint32_t index = 0;
for (uint32_t i = 0; i < eComputedStyleProperty_COUNT; i++) {
if (kEntries[i].IsEnabled()) {
mIndexMap[index++] = i;
}
}
mExposedPropertyCount = index;
}
nsComputedDOMStyle::nsComputedDOMStyle(dom::Element* aElement,
const nsAString& aPseudoElt,
nsIPresShell* aPresShell,
AnimationFlag aFlag)
: mDocumentWeak(nullptr)
, mOuterFrame(nullptr)
, mInnerFrame(nullptr)
, mPresShell(nullptr)
, mStyleContextGeneration(0)
, mExposeVisitedStyle(false)
, mResolvedStyleContext(false)
, mAnimationFlag(aFlag)
{
MOZ_ASSERT(aElement && aPresShell);
mDocumentWeak = do_GetWeakReference(aPresShell->GetDocument());
mContent = aElement;
mPseudo = nsCSSPseudoElements::GetPseudoAtom(aPseudoElt);
MOZ_ASSERT(aPresShell->GetPresContext());
}
nsComputedDOMStyle::~nsComputedDOMStyle()
{
ClearStyleContext();
}
NS_IMPL_CYCLE_COLLECTION_CLASS(nsComputedDOMStyle)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsComputedDOMStyle)
tmp->ClearStyleContext(); // remove observer before clearing mContent
NS_IMPL_CYCLE_COLLECTION_UNLINK(mContent)
NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsComputedDOMStyle)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mContent)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(nsComputedDOMStyle)
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(nsComputedDOMStyle)
return tmp->HasKnownLiveWrapper();
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_END
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_BEGIN(nsComputedDOMStyle)
return tmp->HasKnownLiveWrapper();
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_END
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(nsComputedDOMStyle)
return tmp->HasKnownLiveWrapper();
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END
// QueryInterface implementation for nsComputedDOMStyle
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsComputedDOMStyle)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsIMutationObserver)
NS_INTERFACE_MAP_END_INHERITING(nsDOMCSSDeclaration)
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsComputedDOMStyle)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsComputedDOMStyle)
NS_IMETHODIMP
nsComputedDOMStyle::GetPropertyValue(const nsCSSPropertyID aPropID,
nsAString& aValue)
{
// This is mostly to avoid code duplication with GetPropertyCSSValue(); if
// perf ever becomes an issue here (doubtful), we can look into changing
// this.
return GetPropertyValue(
NS_ConvertASCIItoUTF16(nsCSSProps::GetStringValue(aPropID)),
aValue);
}
NS_IMETHODIMP
nsComputedDOMStyle::SetPropertyValue(const nsCSSPropertyID aPropID,
const nsAString& aValue)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsComputedDOMStyle::GetCssText(nsAString& aCssText)
{
aCssText.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsComputedDOMStyle::SetCssText(const nsAString& aCssText)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsComputedDOMStyle::GetLength(uint32_t* aLength)
{
NS_PRECONDITION(aLength, "Null aLength! Prepare to die!");
uint32_t length = GetComputedStyleMap()->Length();
// Make sure we have up to date style so that we can include custom
// properties.
UpdateCurrentStyleSources(false);
if (mStyleContext) {
length += StyleVariables()->mVariables.Count();
}
*aLength = length;
ClearCurrentStyleSources();
return NS_OK;
}
NS_IMETHODIMP
nsComputedDOMStyle::GetParentRule(nsIDOMCSSRule** aParentRule)
{
*aParentRule = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsComputedDOMStyle::GetPropertyValue(const nsAString& aPropertyName,
nsAString& aReturn)
{
aReturn.Truncate();
ErrorResult error;
RefPtr<CSSValue> val = GetPropertyCSSValue(aPropertyName, error);
if (error.Failed()) {
return error.StealNSResult();
}
if (val) {
nsString text;
val->GetCssText(text, error);
aReturn.Assign(text);
return error.StealNSResult();
}
return NS_OK;
}
NS_IMETHODIMP
nsComputedDOMStyle::GetAuthoredPropertyValue(const nsAString& aPropertyName,
nsAString& aReturn)
{
// Authored style doesn't make sense to return from computed DOM style,
// so just return whatever GetPropertyValue() returns.
return GetPropertyValue(aPropertyName, aReturn);
}
/* static */
already_AddRefed<nsStyleContext>
nsComputedDOMStyle::GetStyleContext(Element* aElement,
nsIAtom* aPseudo,
nsIPresShell* aPresShell)
{
// If the content has a pres shell, we must use it. Otherwise we'd
// potentially mix rule trees by using the wrong pres shell's style
// set. Using the pres shell from the content also means that any
// content that's actually *in* a document will get the style from the
// correct document.
nsCOMPtr<nsIPresShell> presShell = GetPresShellForContent(aElement);
if (!presShell) {
presShell = aPresShell;
if (!presShell)
return nullptr;
}
presShell->FlushPendingNotifications(FlushType::Style);
return GetStyleContextNoFlush(aElement, aPseudo, presShell);
}
namespace {
class MOZ_STACK_CLASS StyleResolver final
{
public:
StyleResolver(nsPresContext* aPresContext,
nsComputedDOMStyle::AnimationFlag aAnimationFlag)
: mAnimationFlag(aAnimationFlag)
{
MOZ_ASSERT(aPresContext);
// Nothing to do if we are going to resolve style *with* animation.
if (mAnimationFlag == nsComputedDOMStyle::eWithAnimation) {
return;
}
// Set SkipAnimationRules flag if we are going to resolve style without
// animation.
if (aPresContext->RestyleManager()->IsGecko()) {
mRestyleManager = aPresContext->RestyleManager()->AsGecko();
mOldSkipAnimationRules = mRestyleManager->SkipAnimationRules();
mRestyleManager->SetSkipAnimationRules(true);
} else {
NS_WARNING("stylo: can't skip animaition rules yet");
}
}
already_AddRefed<nsStyleContext>
ResolveWithAnimation(StyleSetHandle aStyleSet,
Element* aElement,
CSSPseudoElementType aType,
nsStyleContext* aParentContext,
bool aInDocWithShell)
{
MOZ_ASSERT(mAnimationFlag == nsComputedDOMStyle::eWithAnimation,
"AnimationFlag should be eWithAnimation");
RefPtr<nsStyleContext> result;
if (aType != CSSPseudoElementType::NotPseudo) {
nsIFrame* frame = nsLayoutUtils::GetStyleFrame(aElement);
Element* pseudoElement =
frame && aInDocWithShell ? frame->GetPseudoElement(aType) : nullptr;
result = aStyleSet->ResolvePseudoElementStyle(aElement, aType,
aParentContext,
pseudoElement);
} else {
result = aStyleSet->ResolveStyleFor(aElement, aParentContext,
LazyComputeBehavior::Allow);
}
return result.forget();
}
already_AddRefed<nsStyleContext>
ResolveWithoutAnimation(StyleSetHandle aStyleSet,
Element* aElement,
CSSPseudoElementType aType,
nsStyleContext* aParentContext,
bool aInDocWithShell)
{
MOZ_ASSERT(!aStyleSet->IsServo(),
"Servo backend should not use this function");
MOZ_ASSERT(mAnimationFlag == nsComputedDOMStyle::eWithoutAnimation,
"AnimationFlag should be eWithoutAnimation");
RefPtr<nsStyleContext> result;
if (aType != CSSPseudoElementType::NotPseudo) {
nsIFrame* frame = nsLayoutUtils::GetStyleFrame(aElement);
Element* pseudoElement =
frame && aInDocWithShell ? frame->GetPseudoElement(aType) : nullptr;
result =
aStyleSet->AsGecko()->ResolvePseudoElementStyleWithoutAnimation(
aElement, aType,
aParentContext,
pseudoElement);
} else {
result =
aStyleSet->AsGecko()->ResolveStyleWithoutAnimation(aElement,
aParentContext);
}
return result.forget();
}
~StyleResolver()
{
if (mRestyleManager) {
mRestyleManager->SetSkipAnimationRules(mOldSkipAnimationRules);
}
}
private:
GeckoRestyleManager* mRestyleManager = nullptr;
bool mOldSkipAnimationRules = false;
nsComputedDOMStyle::AnimationFlag mAnimationFlag;
};
}
/**
* The following function checks whether we need to explicitly resolve the style
* again, even though we have a style context coming from the frame.
*
* This basically checks whether the style is or may be under a ::first-line or
* ::first-letter frame, in which case we can't return the frame style, and we
* need to resolve it. See bug 505515.
*/
static bool
MustReresolveStyle(const nsStyleContext* aContext)
{
MOZ_ASSERT(aContext);
if (aContext->HasPseudoElementData()) {
if (!aContext->GetPseudo() ||
aContext->StyleSource().IsServoComputedValues()) {
// TODO(emilio): When ::first-line is supported in Servo, we may want to
// fix this to avoid re-resolving pseudo-element styles.
return true;
}
return aContext->GetParent() &&
aContext->GetParent()->HasPseudoElementData();
}
return false;
}
already_AddRefed<nsStyleContext>
nsComputedDOMStyle::DoGetStyleContextNoFlush(Element* aElement,
nsIAtom* aPseudo,
nsIPresShell* aPresShell,
AnimationFlag aAnimationFlag)
{
MOZ_ASSERT(aElement, "NULL element");
// If the content has a pres shell, we must use it. Otherwise we'd
// potentially mix rule trees by using the wrong pres shell's style
// set. Using the pres shell from the content also means that any
// content that's actually *in* a document will get the style from the
// correct document.
nsIPresShell *presShell = GetPresShellForContent(aElement);
bool inDocWithShell = true;
if (!presShell) {
inDocWithShell = false;
presShell = aPresShell;
if (!presShell)
return nullptr;
}
// XXX the !aElement->IsHTMLElement(nsGkAtoms::area)
// check is needed due to bug 135040 (to avoid using
// mPrimaryFrame). Remove it once that's fixed.
if (inDocWithShell &&
!aElement->IsHTMLElement(nsGkAtoms::area)) {
nsIFrame* frame = nullptr;
if (aPseudo == nsCSSPseudoElements::before) {
frame = nsLayoutUtils::GetBeforeFrame(aElement);
} else if (aPseudo == nsCSSPseudoElements::after) {
frame = nsLayoutUtils::GetAfterFrame(aElement);
} else if (!aPseudo) {
frame = nsLayoutUtils::GetStyleFrame(aElement);
}
if (frame) {
nsStyleContext* result = frame->StyleContext();
// Don't use the style context if it was influenced by
// pseudo-elements, since then it's not the primary style
// for this element / pseudo.
if (!MustReresolveStyle(result)) {
// The existing style context may have animation styles so check if we
// need to remove them.
if (aAnimationFlag == eWithoutAnimation) {
nsPresContext* presContext = presShell->GetPresContext();
MOZ_ASSERT(presContext, "Should have a prescontext if we have a frame");
if (presContext && presContext->StyleSet()->IsGecko()) {
nsStyleSet* styleSet = presContext->StyleSet()->AsGecko();
return styleSet->ResolveStyleByRemovingAnimation(
aElement, result, eRestyle_AllHintsWithAnimations);
} else {
NS_WARNING("stylo: Getting the unanimated style context is not yet"
" supported for Servo");
return nullptr;
}
}
// this function returns an addrefed style context
RefPtr<nsStyleContext> ret = result;
return ret.forget();
}
}
}
// No frame has been created, or we have a pseudo, or we're looking
// for the default style, so resolve the style ourselves.
nsPresContext* presContext = presShell->GetPresContext();
if (!presContext)
return nullptr;
StyleSetHandle styleSet = presShell->StyleSet();
auto type = CSSPseudoElementType::NotPseudo;
if (aPseudo) {
type = nsCSSPseudoElements::
GetPseudoType(aPseudo, CSSEnabledState::eIgnoreEnabledState);
if (type >= CSSPseudoElementType::Count) {
return nullptr;
}
}
// For Servo, compute the result directly without recursively building up
// a throwaway style context chain.
if (ServoStyleSet* servoSet = styleSet->GetAsServo()) {
return servoSet->ResolveTransientStyle(aElement, aPseudo, type);
}
RefPtr<nsStyleContext> parentContext;
nsIContent* parent = aPseudo ? aElement : aElement->GetParent();
// Don't resolve parent context for document fragments.
if (parent && parent->IsElement()) {
parentContext = GetStyleContextNoFlush(parent->AsElement(), nullptr,
aPresShell);
}
StyleResolver styleResolver(presContext, aAnimationFlag);
if (aAnimationFlag == eWithAnimation) {
return styleResolver.ResolveWithAnimation(styleSet,
aElement, type,
parentContext,
inDocWithShell);
}
return styleResolver.ResolveWithoutAnimation(styleSet,
aElement, type,
parentContext,
inDocWithShell);
}
nsMargin
nsComputedDOMStyle::GetAdjustedValuesForBoxSizing()
{
// We want the width/height of whatever parts 'width' or 'height' controls,
// which can be different depending on the value of the 'box-sizing' property.
const nsStylePosition* stylePos = StylePosition();
nsMargin adjustment;
if (stylePos->mBoxSizing == StyleBoxSizing::Border) {
adjustment = mInnerFrame->GetUsedBorderAndPadding();
}
return adjustment;
}
/* static */
nsIPresShell*
nsComputedDOMStyle::GetPresShellForContent(nsIContent* aContent)
{
nsIDocument* composedDoc = aContent->GetComposedDoc();
if (!composedDoc)
return nullptr;
return composedDoc->GetShell();
}
// nsDOMCSSDeclaration abstract methods which should never be called
// on a nsComputedDOMStyle object, but must be defined to avoid
// compile errors.
DeclarationBlock*
nsComputedDOMStyle::GetCSSDeclaration(Operation)
{
NS_RUNTIMEABORT("called nsComputedDOMStyle::GetCSSDeclaration");
return nullptr;
}
nsresult
nsComputedDOMStyle::SetCSSDeclaration(DeclarationBlock*)
{
NS_RUNTIMEABORT("called nsComputedDOMStyle::SetCSSDeclaration");
return NS_ERROR_FAILURE;
}
nsIDocument*
nsComputedDOMStyle::DocToUpdate()
{
NS_RUNTIMEABORT("called nsComputedDOMStyle::DocToUpdate");
return nullptr;
}
void
nsComputedDOMStyle::GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv)
{
NS_RUNTIMEABORT("called nsComputedDOMStyle::GetCSSParsingEnvironment");
// Just in case NS_RUNTIMEABORT ever stops killing us for some reason
aCSSParseEnv.mPrincipal = nullptr;
}
URLExtraData*
nsComputedDOMStyle::GetURLData() const
{
NS_RUNTIMEABORT("called nsComputedDOMStyle::GetURLData");
return nullptr;
}
void
nsComputedDOMStyle::ClearStyleContext()
{
if (mResolvedStyleContext) {
mResolvedStyleContext = false;
mContent->RemoveMutationObserver(this);
}
mStyleContext = nullptr;
}
void
nsComputedDOMStyle::SetResolvedStyleContext(RefPtr<nsStyleContext>&& aContext)
{
if (!mResolvedStyleContext) {
mResolvedStyleContext = true;
mContent->AddMutationObserver(this);
}
mStyleContext = aContext;
}
void
nsComputedDOMStyle::SetFrameStyleContext(nsStyleContext* aContext)
{
ClearStyleContext();
mStyleContext = aContext;
}
void
nsComputedDOMStyle::UpdateCurrentStyleSources(bool aNeedsLayoutFlush)
{
nsCOMPtr<nsIDocument> document = do_QueryReferent(mDocumentWeak);
if (!document) {
ClearStyleContext();
return;
}
document->FlushPendingLinkUpdates();
// Flush _before_ getting the presshell, since that could create a new
// presshell. Also note that we want to flush the style on the document
// we're computing style in, not on the document mContent is in -- the two
// may be different.
document->FlushPendingNotifications(
aNeedsLayoutFlush ? FlushType::Layout : FlushType::Style);
#ifdef DEBUG
mFlushedPendingReflows = aNeedsLayoutFlush;
#endif
mPresShell = document->GetShell();
if (!mPresShell || !mPresShell->GetPresContext()) {
ClearStyleContext();
return;
}
uint64_t currentGeneration =
mPresShell->GetPresContext()->GetRestyleGeneration();
if (mStyleContext) {
if (mStyleContextGeneration == currentGeneration) {
// Our cached style context is still valid.
return;
}
// We've processed some restyles, so the cached style context might
// be out of date.
mStyleContext = nullptr;
}
// XXX the !mContent->IsHTMLElement(nsGkAtoms::area)
// check is needed due to bug 135040 (to avoid using
// mPrimaryFrame). Remove it once that's fixed.
if (!mContent->IsHTMLElement(nsGkAtoms::area)) {
mOuterFrame = nullptr;
if (!mPseudo) {
mOuterFrame = mContent->GetPrimaryFrame();
} else if (mPseudo == nsCSSPseudoElements::before ||
mPseudo == nsCSSPseudoElements::after) {
nsIAtom* property = mPseudo == nsCSSPseudoElements::before
? nsGkAtoms::beforePseudoProperty
: nsGkAtoms::afterPseudoProperty;
auto* pseudo = static_cast<Element*>(mContent->GetProperty(property));
mOuterFrame = pseudo ? pseudo->GetPrimaryFrame() : nullptr;
}
mInnerFrame = mOuterFrame;
if (mOuterFrame) {
LayoutFrameType type = mOuterFrame->Type();
if (type == LayoutFrameType::TableWrapper) {
// If the frame is a table wrapper frame then we should get the style
// from the inner table frame.
mInnerFrame = mOuterFrame->PrincipalChildList().FirstChild();
NS_ASSERTION(mInnerFrame, "table wrapper must have an inner");
NS_ASSERTION(!mInnerFrame->GetNextSibling(),
"table wrapper frames should have just one child, "
"the inner table");
}
SetFrameStyleContext(mInnerFrame->StyleContext());
NS_ASSERTION(mStyleContext, "Frame without style context?");
}
}
if (!mStyleContext || MustReresolveStyle(mStyleContext)) {
#ifdef DEBUG
if (mStyleContext && mStyleContext->StyleSource().IsGeckoRuleNodeOrNull()) {
// We want to check that going through this path because of
// HasPseudoElementData is rare, because it slows us down a good
// bit. So check that we're really inside something associated
// with a pseudo-element that contains elements. (We also allow
// the element to be NAC, just in case some chrome JS calls
// getComputedStyle on a NAC-implemented pseudo.)
nsStyleContext* topWithPseudoElementData = mStyleContext;
while (topWithPseudoElementData->GetParent()->HasPseudoElementData()) {
topWithPseudoElementData = topWithPseudoElementData->GetParent();
}
CSSPseudoElementType pseudo = topWithPseudoElementData->GetPseudoType();
nsIAtom* pseudoAtom = nsCSSPseudoElements::GetPseudoAtom(pseudo);
nsAutoString assertMsg(
NS_LITERAL_STRING("we should be in a pseudo-element that is expected to contain elements ("));
assertMsg.Append(nsDependentString(pseudoAtom->GetUTF16String()));
assertMsg.Append(')');
NS_ASSERTION(nsCSSPseudoElements::PseudoElementContainsElements(pseudo) ||
mContent->IsNativeAnonymous(),
NS_LossyConvertUTF16toASCII(assertMsg).get());
}
#endif
// Need to resolve a style context
RefPtr<nsStyleContext> resolvedStyleContext =
nsComputedDOMStyle::GetStyleContext(mContent->AsElement(),
mPseudo,
mPresShell);
if (!resolvedStyleContext) {
ClearStyleContext();
return;
}
// No need to re-get the generation, even though GetStyleContext
// will flush, since we flushed style at the top of this function.
NS_ASSERTION(mPresShell &&
currentGeneration ==
mPresShell->GetPresContext()->GetRestyleGeneration(),
"why should we have flushed style again?");
SetResolvedStyleContext(Move(resolvedStyleContext));
NS_ASSERTION(mPseudo || !mStyleContext->HasPseudoElementData(),
"should not have pseudo-element data");
}
if (mAnimationFlag == eWithoutAnimation) {
// We will support Servo in bug 1311257.
MOZ_ASSERT(mPresShell->StyleSet()->IsGecko(),
"eWithoutAnimationRules support Gecko only");
nsStyleSet* styleSet = mPresShell->StyleSet()->AsGecko();
RefPtr<nsStyleContext> unanimatedStyleContext =
styleSet->ResolveStyleByRemovingAnimation(
mContent->AsElement(), mStyleContext, eRestyle_AllHintsWithAnimations);
SetResolvedStyleContext(Move(unanimatedStyleContext));
}
// mExposeVisitedStyle is set to true only by testing APIs that
// require chrome privilege.
MOZ_ASSERT(!mExposeVisitedStyle || nsContentUtils::IsCallerChrome(),
"mExposeVisitedStyle set incorrectly");
if (mExposeVisitedStyle && mStyleContext->RelevantLinkVisited()) {
nsStyleContext *styleIfVisited = mStyleContext->GetStyleIfVisited();
if (styleIfVisited) {
mStyleContext = styleIfVisited;
}
}
}
void
nsComputedDOMStyle::ClearCurrentStyleSources()
{
mOuterFrame = nullptr;
mInnerFrame = nullptr;
mPresShell = nullptr;
// Release the current style context if we got it off the frame.
// For a style context we resolved, keep it around so that we
// can re-use it next time this object is queried.
if (!mResolvedStyleContext) {
mStyleContext = nullptr;
}
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetPropertyCSSValue(const nsAString& aPropertyName, ErrorResult& aRv)
{
nsCSSPropertyID prop =
nsCSSProps::LookupProperty(aPropertyName, CSSEnabledState::eForAllContent);
bool needsLayoutFlush;
nsComputedStyleMap::Entry::ComputeMethod getter;
if (prop == eCSSPropertyExtra_variable) {
needsLayoutFlush = false;
getter = nullptr;
} else {
// We don't (for now, anyway, though it may make sense to change it
// for all aliases, including those in nsCSSPropAliasList) want
// aliases to be enumerable (via GetLength and IndexedGetter), so
// handle them here rather than adding entries to
// GetQueryablePropertyMap.
if (prop != eCSSProperty_UNKNOWN &&
nsCSSProps::PropHasFlags(prop, CSS_PROPERTY_IS_ALIAS)) {
const nsCSSPropertyID* subprops = nsCSSProps::SubpropertyEntryFor(prop);
MOZ_ASSERT(subprops[1] == eCSSProperty_UNKNOWN,
"must have list of length 1");
prop = subprops[0];
}
const nsComputedStyleMap::Entry* propEntry =
GetComputedStyleMap()->FindEntryForProperty(prop);
if (!propEntry) {
#ifdef DEBUG_ComputedDOMStyle
NS_WARNING(PromiseFlatCString(NS_ConvertUTF16toUTF8(aPropertyName) +
NS_LITERAL_CSTRING(" is not queryable!")).get());
#endif
// NOTE: For branches, we should flush here for compatibility!
return nullptr;
}
needsLayoutFlush = propEntry->IsLayoutFlushNeeded();
getter = propEntry->mGetter;
}
UpdateCurrentStyleSources(needsLayoutFlush);
if (!mStyleContext) {
aRv.Throw(NS_ERROR_NOT_AVAILABLE);
return nullptr;
}
RefPtr<CSSValue> val;
if (prop == eCSSPropertyExtra_variable) {
val = DoGetCustomProperty(aPropertyName);
} else {
// Call our pointer-to-member-function.
val = (this->*getter)();
}
ClearCurrentStyleSources();
return val.forget();
}
NS_IMETHODIMP
nsComputedDOMStyle::RemoveProperty(const nsAString& aPropertyName,
nsAString& aReturn)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsComputedDOMStyle::GetPropertyPriority(const nsAString& aPropertyName,
nsAString& aReturn)
{
aReturn.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsComputedDOMStyle::SetProperty(const nsAString& aPropertyName,
const nsAString& aValue,
const nsAString& aPriority)
{
return NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR;
}
NS_IMETHODIMP
nsComputedDOMStyle::Item(uint32_t aIndex, nsAString& aReturn)
{
return nsDOMCSSDeclaration::Item(aIndex, aReturn);
}
void
nsComputedDOMStyle::IndexedGetter(uint32_t aIndex,
bool& aFound,
nsAString& aPropName)
{
nsComputedStyleMap* map = GetComputedStyleMap();
uint32_t length = map->Length();
if (aIndex < length) {
aFound = true;
CopyASCIItoUTF16(nsCSSProps::GetStringValue(map->PropertyAt(aIndex)),
aPropName);
return;
}
// Custom properties are exposed with indexed properties just after all
// of the built-in properties.
UpdateCurrentStyleSources(false);
if (!mStyleContext) {
aFound = false;
return;
}
const nsStyleVariables* variables = StyleVariables();
if (aIndex - length < variables->mVariables.Count()) {
aFound = true;
nsString varName;
variables->mVariables.GetVariableAt(aIndex - length, varName);
aPropName.AssignLiteral("--");
aPropName.Append(varName);
} else {
aFound = false;
}
ClearCurrentStyleSources();
}
// Property getters...
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBinding()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleDisplay* display = StyleDisplay();
if (display->mBinding) {
val->SetURI(display->mBinding->GetURI());
} else {
val->SetIdent(eCSSKeyword_none);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetClear()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mBreakType,
nsCSSProps::kClearKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFloat()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mFloat,
nsCSSProps::kFloatKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBottom()
{
return GetOffsetWidthFor(eSideBottom);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStackSizing()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(StyleXUL()->mStretchStack ? eCSSKeyword_stretch_to_fit :
eCSSKeyword_ignore);
return val.forget();
}
void
nsComputedDOMStyle::SetToRGBAColor(nsROCSSPrimitiveValue* aValue,
nscolor aColor)
{
nsROCSSPrimitiveValue *red = new nsROCSSPrimitiveValue;
nsROCSSPrimitiveValue *green = new nsROCSSPrimitiveValue;
nsROCSSPrimitiveValue *blue = new nsROCSSPrimitiveValue;
nsROCSSPrimitiveValue *alpha = new nsROCSSPrimitiveValue;
uint8_t a = NS_GET_A(aColor);
nsDOMCSSRGBColor *rgbColor =
new nsDOMCSSRGBColor(red, green, blue, alpha, a < 255);
red->SetNumber(NS_GET_R(aColor));
green->SetNumber(NS_GET_G(aColor));
blue->SetNumber(NS_GET_B(aColor));
alpha->SetNumber(nsStyleUtil::ColorComponentToFloat(a));
aValue->SetColor(rgbColor);
}
void
nsComputedDOMStyle::SetValueFromComplexColor(nsROCSSPrimitiveValue* aValue,
const StyleComplexColor& aColor)
{
SetToRGBAColor(aValue, StyleColor()->CalcComplexColor(aColor));
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetToRGBAColor(val, StyleColor()->mColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColorAdjust()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleVisibility()->mColorAdjust,
nsCSSProps::kColorAdjustKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOpacity()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StyleEffects()->mOpacity);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColumnCount()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleColumn* column = StyleColumn();
if (column->mColumnCount == NS_STYLE_COLUMN_COUNT_AUTO) {
val->SetIdent(eCSSKeyword_auto);
} else {
val->SetNumber(column->mColumnCount);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColumnWidth()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
// XXX fix the auto case. When we actually have a column frame, I think
// we should return the computed column width.
SetValueToCoord(val, StyleColumn()->mColumnWidth, true);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColumnGap()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleColumn* column = StyleColumn();
if (column->mColumnGap.GetUnit() == eStyleUnit_Normal) {
val->SetAppUnits(StyleFont()->mFont.size);
} else {
SetValueToCoord(val, StyleColumn()->mColumnGap, true);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColumnFill()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleColumn()->mColumnFill,
nsCSSProps::kColumnFillKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColumnSpan()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleColumn()->mColumnSpan,
nsCSSProps::kColumnSpanKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColumnRuleWidth()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetAppUnits(StyleColumn()->GetComputedColumnRuleWidth());
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColumnRuleStyle()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleColumn()->mColumnRuleStyle,
nsCSSProps::kBorderStyleKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColumnRuleColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueFromComplexColor(val, StyleColumn()->mColumnRuleColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetContent()
{
const nsStyleContent *content = StyleContent();
if (content->ContentCount() == 0) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
if (content->ContentCount() == 1 &&
content->ContentAt(0).GetType() == eStyleContentType_AltContent) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword__moz_alt_content);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
for (uint32_t i = 0, i_end = content->ContentCount(); i < i_end; ++i) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleContentData &data = content->ContentAt(i);
nsStyleContentType type = data.GetType();
switch (type) {
case eStyleContentType_String: {
nsAutoString str;
nsStyleUtil::AppendEscapedCSSString(
nsDependentString(data.GetString()), str);
val->SetString(str);
break;
}
case eStyleContentType_Image: {
nsCOMPtr<nsIURI> uri;
if (imgRequestProxy* image = data.GetImage()) {
image->GetURI(getter_AddRefs(uri));
}
val->SetURI(uri);
break;
}
case eStyleContentType_Attr: {
nsAutoString str;
nsStyleUtil::AppendEscapedCSSIdent(
nsDependentString(data.GetString()), str);
val->SetString(str, nsIDOMCSSPrimitiveValue::CSS_ATTR);
break;
}
case eStyleContentType_Counter:
case eStyleContentType_Counters: {
/* FIXME: counters should really use an object */
nsAutoString str;
if (type == eStyleContentType_Counter) {
str.AppendLiteral("counter(");
}
else {
str.AppendLiteral("counters(");
}
// WRITE ME
nsCSSValue::Array* a = data.GetCounters();
nsStyleUtil::AppendEscapedCSSIdent(
nsDependentString(a->Item(0).GetStringBufferValue()), str);
int32_t typeItem = 1;
if (type == eStyleContentType_Counters) {
typeItem = 2;
str.AppendLiteral(", ");
nsStyleUtil::AppendEscapedCSSString(
nsDependentString(a->Item(1).GetStringBufferValue()), str);
}
MOZ_ASSERT(eCSSUnit_None != a->Item(typeItem).GetUnit(),
"'none' should be handled as identifier value");
nsString type;
a->Item(typeItem).AppendToString(eCSSProperty_list_style_type,
type, nsCSSValue::eNormalized);
if (!type.LowerCaseEqualsLiteral("decimal")) {
str.AppendLiteral(", ");
str.Append(type);
}
str.Append(char16_t(')'));
val->SetString(str, nsIDOMCSSPrimitiveValue::CSS_COUNTER);
break;
}
case eStyleContentType_OpenQuote:
val->SetIdent(eCSSKeyword_open_quote);
break;
case eStyleContentType_CloseQuote:
val->SetIdent(eCSSKeyword_close_quote);
break;
case eStyleContentType_NoOpenQuote:
val->SetIdent(eCSSKeyword_no_open_quote);
break;
case eStyleContentType_NoCloseQuote:
val->SetIdent(eCSSKeyword_no_close_quote);
break;
case eStyleContentType_AltContent:
default:
NS_NOTREACHED("unexpected type");
break;
}
valueList->AppendCSSValue(val.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetCounterIncrement()
{
const nsStyleContent *content = StyleContent();
if (content->CounterIncrementCount() == 0) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
for (uint32_t i = 0, i_end = content->CounterIncrementCount(); i < i_end; ++i) {
RefPtr<nsROCSSPrimitiveValue> name = new nsROCSSPrimitiveValue;
RefPtr<nsROCSSPrimitiveValue> value = new nsROCSSPrimitiveValue;
const nsStyleCounterData& data = content->CounterIncrementAt(i);
nsAutoString escaped;
nsStyleUtil::AppendEscapedCSSIdent(data.mCounter, escaped);
name->SetString(escaped);
value->SetNumber(data.mValue); // XXX This should really be integer
valueList->AppendCSSValue(name.forget());
valueList->AppendCSSValue(value.forget());
}
return valueList.forget();
}
/* Convert the stored representation into a list of two values and then hand
* it back.
*/
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTransformOrigin()
{
/* We need to build up a list of two values. We'll call them
* width and height.
*/
/* Store things as a value list */
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
/* Now, get the values. */
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsROCSSPrimitiveValue> width = new nsROCSSPrimitiveValue;
SetValueToCoord(width, display->mTransformOrigin[0], false,
&nsComputedDOMStyle::GetFrameBoundsWidthForTransform);
valueList->AppendCSSValue(width.forget());
RefPtr<nsROCSSPrimitiveValue> height = new nsROCSSPrimitiveValue;
SetValueToCoord(height, display->mTransformOrigin[1], false,
&nsComputedDOMStyle::GetFrameBoundsHeightForTransform);
valueList->AppendCSSValue(height.forget());
if (display->mTransformOrigin[2].GetUnit() != eStyleUnit_Coord ||
display->mTransformOrigin[2].GetCoordValue() != 0) {
RefPtr<nsROCSSPrimitiveValue> depth = new nsROCSSPrimitiveValue;
SetValueToCoord(depth, display->mTransformOrigin[2], false,
nullptr);
valueList->AppendCSSValue(depth.forget());
}
return valueList.forget();
}
/* Convert the stored representation into a list of two values and then hand
* it back.
*/
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPerspectiveOrigin()
{
/* We need to build up a list of two values. We'll call them
* width and height.
*/
/* Store things as a value list */
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
/* Now, get the values. */
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsROCSSPrimitiveValue> width = new nsROCSSPrimitiveValue;
SetValueToCoord(width, display->mPerspectiveOrigin[0], false,
&nsComputedDOMStyle::GetFrameBoundsWidthForTransform);
valueList->AppendCSSValue(width.forget());
RefPtr<nsROCSSPrimitiveValue> height = new nsROCSSPrimitiveValue;
SetValueToCoord(height, display->mPerspectiveOrigin[1], false,
&nsComputedDOMStyle::GetFrameBoundsHeightForTransform);
valueList->AppendCSSValue(height.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPerspective()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StyleDisplay()->mChildPerspective, false);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackfaceVisibility()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mBackfaceVisibility,
nsCSSProps::kBackfaceVisibilityKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTransformStyle()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mTransformStyle,
nsCSSProps::kTransformStyleKTable));
return val.forget();
}
/* If the property is "none", hand back "none" wrapped in a value.
* Otherwise, compute the aggregate transform matrix and hands it back in a
* "matrix" wrapper.
*/
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTransform()
{
/* First, get the display data. We'll need it. */
const nsStyleDisplay* display = StyleDisplay();
/* If there are no transforms, then we should construct a single-element
* entry and hand it back.
*/
if (!display->mSpecifiedTransform) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
/* Set it to "none." */
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
/* Otherwise, we need to compute the current value of the transform matrix,
* store it in a string, and hand it back to the caller.
*/
/* Use the inner frame for the reference box. If we don't have an inner
* frame we use empty dimensions to allow us to continue (and percentage
* values in the transform will simply give broken results).
* TODO: There is no good way for us to represent the case where there's no
* frame, which is problematic. The reason is that when we have percentage
* transforms, there are a total of four stored matrix entries that influence
* the transform based on the size of the element. However, this poses a
* problem, because only two of these values can be explicitly referenced
* using the named transforms. Until a real solution is found, we'll just
* use this approach.
*/
nsStyleTransformMatrix::TransformReferenceBox refBox(mInnerFrame,
nsSize(0, 0));
RuleNodeCacheConditions dummy;
bool dummyBool;
gfx::Matrix4x4 matrix =
nsStyleTransformMatrix::ReadTransforms(display->mSpecifiedTransform->mHead,
mStyleContext,
mStyleContext->PresContext(),
dummy,
refBox,
float(mozilla::AppUnitsPerCSSPixel()),
&dummyBool);
return MatrixToCSSValue(matrix);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTransformBox()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mTransformBox,
nsCSSProps::kTransformBoxKTable));
return val.forget();
}
/* static */ already_AddRefed<nsROCSSPrimitiveValue>
nsComputedDOMStyle::MatrixToCSSValue(const mozilla::gfx::Matrix4x4& matrix)
{
bool is3D = !matrix.Is2D();
nsAutoString resultString(NS_LITERAL_STRING("matrix"));
if (is3D) {
resultString.AppendLiteral("3d");
}
resultString.Append('(');
resultString.AppendFloat(matrix._11);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._12);
resultString.AppendLiteral(", ");
if (is3D) {
resultString.AppendFloat(matrix._13);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._14);
resultString.AppendLiteral(", ");
}
resultString.AppendFloat(matrix._21);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._22);
resultString.AppendLiteral(", ");
if (is3D) {
resultString.AppendFloat(matrix._23);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._24);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._31);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._32);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._33);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._34);
resultString.AppendLiteral(", ");
}
resultString.AppendFloat(matrix._41);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._42);
if (is3D) {
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._43);
resultString.AppendLiteral(", ");
resultString.AppendFloat(matrix._44);
}
resultString.Append(')');
/* Create a value to hold our result. */
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetString(resultString);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetCounterReset()
{
const nsStyleContent *content = StyleContent();
if (content->CounterResetCount() == 0) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
for (uint32_t i = 0, i_end = content->CounterResetCount(); i < i_end; ++i) {
RefPtr<nsROCSSPrimitiveValue> name = new nsROCSSPrimitiveValue;
RefPtr<nsROCSSPrimitiveValue> value = new nsROCSSPrimitiveValue;
const nsStyleCounterData& data = content->CounterResetAt(i);
nsAutoString escaped;
nsStyleUtil::AppendEscapedCSSIdent(data.mCounter, escaped);
name->SetString(escaped);
value->SetNumber(data.mValue); // XXX This should really be integer
valueList->AppendCSSValue(name.forget());
valueList->AppendCSSValue(value.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetQuotes()
{
const auto& quotePairs = StyleList()->GetQuotePairs();
if (quotePairs.IsEmpty()) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
for (const auto& quotePair : quotePairs) {
RefPtr<nsROCSSPrimitiveValue> openVal = new nsROCSSPrimitiveValue;
RefPtr<nsROCSSPrimitiveValue> closeVal = new nsROCSSPrimitiveValue;
nsAutoString s;
nsStyleUtil::AppendEscapedCSSString(quotePair.first, s);
openVal->SetString(s);
s.Truncate();
nsStyleUtil::AppendEscapedCSSString(quotePair.second, s);
closeVal->SetString(s);
valueList->AppendCSSValue(openVal.forget());
valueList->AppendCSSValue(closeVal.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontFamily()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleFont* font = StyleFont();
nsAutoString fontlistStr;
nsStyleUtil::AppendEscapedCSSFontFamilyList(font->mFont.fontlist,
fontlistStr);
val->SetString(fontlistStr);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontSize()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
// Note: StyleFont()->mSize is the 'computed size';
// StyleFont()->mFont.size is the 'actual size'
val->SetAppUnits(StyleFont()->mSize);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontSizeAdjust()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleFont *font = StyleFont();
if (font->mFont.sizeAdjust >= 0.0f) {
val->SetNumber(font->mFont.sizeAdjust);
} else {
val->SetIdent(eCSSKeyword_none);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOsxFontSmoothing()
{
if (nsContentUtils::ShouldResistFingerprinting(
mPresShell->GetPresContext()->GetDocShell()))
return nullptr;
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleFont()->mFont.smoothing,
nsCSSProps::kFontSmoothingKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontStretch()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleFont()->mFont.stretch,
nsCSSProps::kFontStretchKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontStyle()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleFont()->mFont.style,
nsCSSProps::kFontStyleKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontWeight()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleFont* font = StyleFont();
uint16_t weight = font->mFont.weight;
NS_ASSERTION(weight % 100 == 0, "unexpected value of font-weight");
val->SetNumber(weight);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontFeatureSettings()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleFont* font = StyleFont();
if (font->mFont.fontFeatureSettings.IsEmpty()) {
val->SetIdent(eCSSKeyword_normal);
} else {
nsAutoString result;
nsStyleUtil::AppendFontFeatureSettings(font->mFont.fontFeatureSettings,
result);
val->SetString(result);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontVariationSettings()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleFont* font = StyleFont();
if (font->mFont.fontVariationSettings.IsEmpty()) {
val->SetIdent(eCSSKeyword_normal);
} else {
nsAutoString result;
nsStyleUtil::AppendFontVariationSettings(font->mFont.fontVariationSettings,
result);
val->SetString(result);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontKerning()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleFont()->mFont.kerning,
nsCSSProps::kFontKerningKTable));
return val.forget();
}
static void
SerializeLanguageOverride(uint32_t aLanguageOverride, nsAString& aResult)
{
aResult.Truncate();
uint32_t i;
for (i = 0; i < 4 ; i++) {
char16_t ch = aLanguageOverride >> 24;
MOZ_ASSERT(nsCRT::IsAscii(ch),
"Invalid tags, we should've handled this during computing!");
aResult.Append(ch);
aLanguageOverride = aLanguageOverride << 8;
}
// strip trailing whitespaces
while (i > 0 && aResult[i - 1] == ' ') {
i--;
}
aResult.Truncate(i);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontLanguageOverride()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleFont* font = StyleFont();
if (font->mFont.languageOverride == 0) {
val->SetIdent(eCSSKeyword_normal);
} else {
nsAutoString serializedStr, escapedStr;
SerializeLanguageOverride(font->mFont.languageOverride, serializedStr);
nsStyleUtil::AppendEscapedCSSString(serializedStr, escapedStr);
val->SetString(escapedStr);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontSynthesis()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t intValue = StyleFont()->mFont.synthesis;
if (0 == intValue) {
val->SetIdent(eCSSKeyword_none);
} else {
nsAutoString valueStr;
nsStyleUtil::AppendBitmaskCSSValue(eCSSProperty_font_synthesis,
intValue, NS_FONT_SYNTHESIS_WEIGHT,
NS_FONT_SYNTHESIS_STYLE, valueStr);
val->SetString(valueStr);
}
return val.forget();
}
// return a value *only* for valid longhand values from CSS 2.1, either
// normal or small-caps only
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontVariant()
{
const nsFont& f = StyleFont()->mFont;
// if any of the other font-variant subproperties other than
// font-variant-caps are not normal then can't calculate a computed value
if (f.variantAlternates || f.variantEastAsian || f.variantLigatures ||
f.variantNumeric || f.variantPosition) {
return nullptr;
}
nsCSSKeyword keyword;
switch (f.variantCaps) {
case 0:
keyword = eCSSKeyword_normal;
break;
case NS_FONT_VARIANT_CAPS_SMALLCAPS:
keyword = eCSSKeyword_small_caps;
break;
default:
return nullptr;
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(keyword);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontVariantAlternates()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t intValue = StyleFont()->mFont.variantAlternates;
if (0 == intValue) {
val->SetIdent(eCSSKeyword_normal);
return val.forget();
}
// first, include enumerated values
nsAutoString valueStr;
nsStyleUtil::AppendBitmaskCSSValue(eCSSProperty_font_variant_alternates,
intValue & NS_FONT_VARIANT_ALTERNATES_ENUMERATED_MASK,
NS_FONT_VARIANT_ALTERNATES_HISTORICAL,
NS_FONT_VARIANT_ALTERNATES_HISTORICAL, valueStr);
// next, include functional values if present
if (intValue & NS_FONT_VARIANT_ALTERNATES_FUNCTIONAL_MASK) {
nsStyleUtil::SerializeFunctionalAlternates(StyleFont()->mFont.alternateValues,
valueStr);
}
val->SetString(valueStr);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontVariantCaps()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t intValue = StyleFont()->mFont.variantCaps;
if (0 == intValue) {
val->SetIdent(eCSSKeyword_normal);
} else {
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(intValue,
nsCSSProps::kFontVariantCapsKTable));
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontVariantEastAsian()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t intValue = StyleFont()->mFont.variantEastAsian;
if (0 == intValue) {
val->SetIdent(eCSSKeyword_normal);
} else {
nsAutoString valueStr;
nsStyleUtil::AppendBitmaskCSSValue(eCSSProperty_font_variant_east_asian,
intValue, NS_FONT_VARIANT_EAST_ASIAN_JIS78,
NS_FONT_VARIANT_EAST_ASIAN_RUBY, valueStr);
val->SetString(valueStr);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontVariantLigatures()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t intValue = StyleFont()->mFont.variantLigatures;
if (0 == intValue) {
val->SetIdent(eCSSKeyword_normal);
} else if (NS_FONT_VARIANT_LIGATURES_NONE == intValue) {
val->SetIdent(eCSSKeyword_none);
} else {
nsAutoString valueStr;
nsStyleUtil::AppendBitmaskCSSValue(eCSSProperty_font_variant_ligatures,
intValue, NS_FONT_VARIANT_LIGATURES_NONE,
NS_FONT_VARIANT_LIGATURES_NO_CONTEXTUAL, valueStr);
val->SetString(valueStr);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontVariantNumeric()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t intValue = StyleFont()->mFont.variantNumeric;
if (0 == intValue) {
val->SetIdent(eCSSKeyword_normal);
} else {
nsAutoString valueStr;
nsStyleUtil::AppendBitmaskCSSValue(eCSSProperty_font_variant_numeric,
intValue, NS_FONT_VARIANT_NUMERIC_LINING,
NS_FONT_VARIANT_NUMERIC_ORDINAL, valueStr);
val->SetString(valueStr);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFontVariantPosition()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t intValue = StyleFont()->mFont.variantPosition;
if (0 == intValue) {
val->SetIdent(eCSSKeyword_normal);
} else {
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(intValue,
nsCSSProps::kFontVariantPositionKTable));
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundAttachment()
{
return GetBackgroundList(&nsStyleImageLayers::Layer::mAttachment,
&nsStyleImageLayers::mAttachmentCount,
StyleBackground()->mImage,
nsCSSProps::kImageLayerAttachmentKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundClip()
{
return GetBackgroundList(&nsStyleImageLayers::Layer::mClip,
&nsStyleImageLayers::mClipCount,
StyleBackground()->mImage,
nsCSSProps::kBackgroundClipKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueFromComplexColor(val, StyleBackground()->mBackgroundColor);
return val.forget();
}
static void
SetValueToCalc(const nsStyleCoord::CalcValue* aCalc,
nsROCSSPrimitiveValue* aValue)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString tmp, result;
result.AppendLiteral("calc(");
val->SetAppUnits(aCalc->mLength);
val->GetCssText(tmp);
result.Append(tmp);
if (aCalc->mHasPercent) {
result.AppendLiteral(" + ");
val->SetPercent(aCalc->mPercent);
val->GetCssText(tmp);
result.Append(tmp);
}
result.Append(')');
aValue->SetString(result); // not really SetString
}
static void
AppendCSSGradientLength(const nsStyleCoord& aValue,
nsROCSSPrimitiveValue* aPrimitive,
nsAString& aString)
{
nsAutoString tokenString;
if (aValue.IsCalcUnit())
SetValueToCalc(aValue.GetCalcValue(), aPrimitive);
else if (aValue.GetUnit() == eStyleUnit_Coord)
aPrimitive->SetAppUnits(aValue.GetCoordValue());
else
aPrimitive->SetPercent(aValue.GetPercentValue());
aPrimitive->GetCssText(tokenString);
aString.Append(tokenString);
}
static void
AppendCSSGradientToBoxPosition(const nsStyleGradient* aGradient,
nsAString& aString,
bool& aNeedSep)
{
// This function only supports box position keywords. Make sure we're not
// calling it with inputs that would have coordinates that aren't
// representable with box-position keywords.
MOZ_ASSERT(aGradient->mShape == NS_STYLE_GRADIENT_SHAPE_LINEAR &&
!(aGradient->mLegacySyntax && aGradient->mMozLegacySyntax),
"Only call me for linear-gradient and -webkit-linear-gradient");
float xValue = aGradient->mBgPosX.GetPercentValue();
float yValue = aGradient->mBgPosY.GetPercentValue();
if (yValue == 1.0f && xValue == 0.5f) {
// omit "to bottom"
return;
}
NS_ASSERTION(yValue != 0.5f || xValue != 0.5f, "invalid box position");
if (!aGradient->mLegacySyntax) {
// Modern syntax explicitly includes the word "to". Old syntax does not
// (and is implicitly "from" the given position instead).
aString.AppendLiteral("to ");
}
if (xValue == 0.0f) {
aString.AppendLiteral("left");
} else if (xValue == 1.0f) {
aString.AppendLiteral("right");
} else if (xValue != 0.5f) { // do not write "center" keyword
NS_NOTREACHED("invalid box position");
}
if (xValue != 0.5f && yValue != 0.5f) {
// We're appending both an x-keyword and a y-keyword.
// Add a space between them here.
aString.AppendLiteral(" ");
}
if (yValue == 0.0f) {
aString.AppendLiteral("top");
} else if (yValue == 1.0f) {
aString.AppendLiteral("bottom");
} else if (yValue != 0.5f) { // do not write "center" keyword
NS_NOTREACHED("invalid box position");
}
aNeedSep = true;
}
void
nsComputedDOMStyle::GetCSSGradientString(const nsStyleGradient* aGradient,
nsAString& aString)
{
if (!aGradient->mLegacySyntax) {
aString.Truncate();
} else {
if (aGradient->mMozLegacySyntax) {
aString.AssignLiteral("-moz-");
} else {
aString.AssignLiteral("-webkit-");
}
}
if (aGradient->mRepeating) {
aString.AppendLiteral("repeating-");
}
bool isRadial = aGradient->mShape != NS_STYLE_GRADIENT_SHAPE_LINEAR;
if (isRadial) {
aString.AppendLiteral("radial-gradient(");
} else {
aString.AppendLiteral("linear-gradient(");
}
bool needSep = false;
nsAutoString tokenString;
RefPtr<nsROCSSPrimitiveValue> tmpVal = new nsROCSSPrimitiveValue;
if (isRadial && !aGradient->mLegacySyntax) {
if (aGradient->mSize != NS_STYLE_GRADIENT_SIZE_EXPLICIT_SIZE) {
if (aGradient->mShape == NS_STYLE_GRADIENT_SHAPE_CIRCULAR) {
aString.AppendLiteral("circle");
needSep = true;
}
if (aGradient->mSize != NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER) {
if (needSep) {
aString.Append(' ');
}
AppendASCIItoUTF16(nsCSSProps::
ValueToKeyword(aGradient->mSize,
nsCSSProps::kRadialGradientSizeKTable),
aString);
needSep = true;
}
} else {
AppendCSSGradientLength(aGradient->mRadiusX, tmpVal, aString);
if (aGradient->mShape != NS_STYLE_GRADIENT_SHAPE_CIRCULAR) {
aString.Append(' ');
AppendCSSGradientLength(aGradient->mRadiusY, tmpVal, aString);
}
needSep = true;
}
}
if (aGradient->mBgPosX.GetUnit() != eStyleUnit_None) {
MOZ_ASSERT(aGradient->mBgPosY.GetUnit() != eStyleUnit_None);
if (!isRadial &&
!(aGradient->mLegacySyntax && aGradient->mMozLegacySyntax)) {
// linear-gradient() or -webkit-linear-gradient()
AppendCSSGradientToBoxPosition(aGradient, aString, needSep);
} else if (aGradient->mBgPosX.GetUnit() != eStyleUnit_Percent ||
aGradient->mBgPosX.GetPercentValue() != 0.5f ||
aGradient->mBgPosY.GetUnit() != eStyleUnit_Percent ||
aGradient->mBgPosY.GetPercentValue() != (isRadial ? 0.5f : 1.0f)) {
if (isRadial && !aGradient->mLegacySyntax) {
if (needSep) {
aString.Append(' ');
}
aString.AppendLiteral("at ");
needSep = false;
}
AppendCSSGradientLength(aGradient->mBgPosX, tmpVal, aString);
if (aGradient->mBgPosY.GetUnit() != eStyleUnit_None) {
aString.Append(' ');
AppendCSSGradientLength(aGradient->mBgPosY, tmpVal, aString);
}
needSep = true;
}
}
if (aGradient->mAngle.GetUnit() != eStyleUnit_None) {
MOZ_ASSERT(!isRadial || aGradient->mLegacySyntax);
if (needSep) {
aString.Append(' ');
}
nsStyleUtil::AppendAngleValue(aGradient->mAngle, aString);
needSep = true;
}
if (isRadial && aGradient->mLegacySyntax &&
(aGradient->mShape == NS_STYLE_GRADIENT_SHAPE_CIRCULAR ||
aGradient->mSize != NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER)) {
MOZ_ASSERT(aGradient->mSize != NS_STYLE_GRADIENT_SIZE_EXPLICIT_SIZE);
if (needSep) {
aString.AppendLiteral(", ");
needSep = false;
}
if (aGradient->mShape == NS_STYLE_GRADIENT_SHAPE_CIRCULAR) {
aString.AppendLiteral("circle");
needSep = true;
}
if (aGradient->mSize != NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER) {
if (needSep) {
aString.Append(' ');
}
AppendASCIItoUTF16(nsCSSProps::
ValueToKeyword(aGradient->mSize,
nsCSSProps::kRadialGradientSizeKTable),
aString);
}
needSep = true;
}
// color stops
for (uint32_t i = 0; i < aGradient->mStops.Length(); ++i) {
if (needSep) {
aString.AppendLiteral(", ");
}
const auto& stop = aGradient->mStops[i];
if (!stop.mIsInterpolationHint) {
SetToRGBAColor(tmpVal, stop.mColor);
tmpVal->GetCssText(tokenString);
aString.Append(tokenString);
}
if (stop.mLocation.GetUnit() != eStyleUnit_None) {
if (!stop.mIsInterpolationHint) {
aString.Append(' ');
}
AppendCSSGradientLength(stop.mLocation, tmpVal, aString);
}
needSep = true;
}
aString.Append(')');
}
// -moz-image-rect(<uri>, <top>, <right>, <bottom>, <left>)
void
nsComputedDOMStyle::GetImageRectString(nsIURI* aURI,
const nsStyleSides& aCropRect,
nsString& aString)
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
// <uri>
RefPtr<nsROCSSPrimitiveValue> valURI = new nsROCSSPrimitiveValue;
valURI->SetURI(aURI);
valueList->AppendCSSValue(valURI.forget());
// <top>, <right>, <bottom>, <left>
NS_FOR_CSS_SIDES(side) {
RefPtr<nsROCSSPrimitiveValue> valSide = new nsROCSSPrimitiveValue;
SetValueToCoord(valSide, aCropRect.Get(side), false);
valueList->AppendCSSValue(valSide.forget());
}
nsAutoString argumentString;
valueList->GetCssText(argumentString);
aString = NS_LITERAL_STRING("-moz-image-rect(") +
argumentString +
NS_LITERAL_STRING(")");
}
void
nsComputedDOMStyle::SetValueToStyleImage(const nsStyleImage& aStyleImage,
nsROCSSPrimitiveValue* aValue)
{
switch (aStyleImage.GetType()) {
case eStyleImageType_Image:
{
nsCOMPtr<nsIURI> uri = aStyleImage.GetImageURI();
if (!uri) {
aValue->SetIdent(eCSSKeyword_none);
break;
}
const UniquePtr<nsStyleSides>& cropRect = aStyleImage.GetCropRect();
if (cropRect) {
nsAutoString imageRectString;
GetImageRectString(uri, *cropRect, imageRectString);
aValue->SetString(imageRectString);
} else {
aValue->SetURI(uri);
}
break;
}
case eStyleImageType_Gradient:
{
nsAutoString gradientString;
GetCSSGradientString(aStyleImage.GetGradientData(),
gradientString);
aValue->SetString(gradientString);
break;
}
case eStyleImageType_Element:
{
nsAutoString elementId;
nsStyleUtil::AppendEscapedCSSIdent(
nsDependentAtomString(aStyleImage.GetElementId()),
elementId);
nsAutoString elementString = NS_LITERAL_STRING("-moz-element(#") +
elementId +
NS_LITERAL_STRING(")");
aValue->SetString(elementString);
break;
}
case eStyleImageType_Null:
aValue->SetIdent(eCSSKeyword_none);
break;
case eStyleImageType_URL:
SetValueToURLValue(aStyleImage.GetURLValue(), aValue);
break;
default:
NS_NOTREACHED("unexpected image type");
break;
}
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetImageLayerImage(const nsStyleImageLayers& aLayers)
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (uint32_t i = 0, i_end = aLayers.mImageCount; i < i_end; ++i) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToStyleImage(aLayers.mLayers[i].mImage, val);
valueList->AppendCSSValue(val.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetImageLayerPosition(const nsStyleImageLayers& aLayers)
{
if (aLayers.mPositionXCount != aLayers.mPositionYCount) {
// No value to return. We can't express this combination of
// values as a shorthand.
return nullptr;
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (uint32_t i = 0, i_end = aLayers.mPositionXCount; i < i_end; ++i) {
RefPtr<nsDOMCSSValueList> itemList = GetROCSSValueList(false);
SetValueToPosition(aLayers.mLayers[i].mPosition, itemList);
valueList->AppendCSSValue(itemList.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetImageLayerPositionX(const nsStyleImageLayers& aLayers)
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (uint32_t i = 0, i_end = aLayers.mPositionXCount; i < i_end; ++i) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToPositionCoord(aLayers.mLayers[i].mPosition.mXPosition, val);
valueList->AppendCSSValue(val.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetImageLayerPositionY(const nsStyleImageLayers& aLayers)
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (uint32_t i = 0, i_end = aLayers.mPositionYCount; i < i_end; ++i) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToPositionCoord(aLayers.mLayers[i].mPosition.mYPosition, val);
valueList->AppendCSSValue(val.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetImageLayerRepeat(const nsStyleImageLayers& aLayers)
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (uint32_t i = 0, i_end = aLayers.mRepeatCount; i < i_end; ++i) {
RefPtr<nsDOMCSSValueList> itemList = GetROCSSValueList(false);
RefPtr<nsROCSSPrimitiveValue> valX = new nsROCSSPrimitiveValue;
const uint8_t& xRepeat = aLayers.mLayers[i].mRepeat.mXRepeat;
const uint8_t& yRepeat = aLayers.mLayers[i].mRepeat.mYRepeat;
bool hasContraction = true;
unsigned contraction;
if (xRepeat == yRepeat) {
contraction = xRepeat;
} else if (xRepeat == NS_STYLE_IMAGELAYER_REPEAT_REPEAT &&
yRepeat == NS_STYLE_IMAGELAYER_REPEAT_NO_REPEAT) {
contraction = NS_STYLE_IMAGELAYER_REPEAT_REPEAT_X;
} else if (xRepeat == NS_STYLE_IMAGELAYER_REPEAT_NO_REPEAT &&
yRepeat == NS_STYLE_IMAGELAYER_REPEAT_REPEAT) {
contraction = NS_STYLE_IMAGELAYER_REPEAT_REPEAT_Y;
} else {
hasContraction = false;
}
RefPtr<nsROCSSPrimitiveValue> valY;
if (hasContraction) {
valX->SetIdent(nsCSSProps::ValueToKeywordEnum(contraction,
nsCSSProps::kImageLayerRepeatKTable));
} else {
valY = new nsROCSSPrimitiveValue;
valX->SetIdent(nsCSSProps::ValueToKeywordEnum(xRepeat,
nsCSSProps::kImageLayerRepeatKTable));
valY->SetIdent(nsCSSProps::ValueToKeywordEnum(yRepeat,
nsCSSProps::kImageLayerRepeatKTable));
}
itemList->AppendCSSValue(valX.forget());
if (valY) {
itemList->AppendCSSValue(valY.forget());
}
valueList->AppendCSSValue(itemList.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetImageLayerSize(const nsStyleImageLayers& aLayers)
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (uint32_t i = 0, i_end = aLayers.mSizeCount; i < i_end; ++i) {
const nsStyleImageLayers::Size &size = aLayers.mLayers[i].mSize;
switch (size.mWidthType) {
case nsStyleImageLayers::Size::eContain:
case nsStyleImageLayers::Size::eCover: {
MOZ_ASSERT(size.mWidthType == size.mHeightType,
"unsynced types");
nsCSSKeyword keyword = size.mWidthType == nsStyleImageLayers::Size::eContain
? eCSSKeyword_contain
: eCSSKeyword_cover;
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(keyword);
valueList->AppendCSSValue(val.forget());
break;
}
default: {
RefPtr<nsDOMCSSValueList> itemList = GetROCSSValueList(false);
RefPtr<nsROCSSPrimitiveValue> valX = new nsROCSSPrimitiveValue;
RefPtr<nsROCSSPrimitiveValue> valY = new nsROCSSPrimitiveValue;
if (size.mWidthType == nsStyleImageLayers::Size::eAuto) {
valX->SetIdent(eCSSKeyword_auto);
} else {
MOZ_ASSERT(size.mWidthType ==
nsStyleImageLayers::Size::eLengthPercentage,
"bad mWidthType");
if (!size.mWidth.mHasPercent &&
// negative values must have come from calc()
size.mWidth.mLength >= 0) {
MOZ_ASSERT(size.mWidth.mPercent == 0.0f,
"Shouldn't have mPercent");
valX->SetAppUnits(size.mWidth.mLength);
} else if (size.mWidth.mLength == 0 &&
// negative values must have come from calc()
size.mWidth.mPercent >= 0.0f) {
valX->SetPercent(size.mWidth.mPercent);
} else {
SetValueToCalc(&size.mWidth, valX);
}
}
if (size.mHeightType == nsStyleImageLayers::Size::eAuto) {
valY->SetIdent(eCSSKeyword_auto);
} else {
MOZ_ASSERT(size.mHeightType ==
nsStyleImageLayers::Size::eLengthPercentage,
"bad mHeightType");
if (!size.mHeight.mHasPercent &&
// negative values must have come from calc()
size.mHeight.mLength >= 0) {
MOZ_ASSERT(size.mHeight.mPercent == 0.0f,
"Shouldn't have mPercent");
valY->SetAppUnits(size.mHeight.mLength);
} else if (size.mHeight.mLength == 0 &&
// negative values must have come from calc()
size.mHeight.mPercent >= 0.0f) {
valY->SetPercent(size.mHeight.mPercent);
} else {
SetValueToCalc(&size.mHeight, valY);
}
}
itemList->AppendCSSValue(valX.forget());
itemList->AppendCSSValue(valY.forget());
valueList->AppendCSSValue(itemList.forget());
break;
}
}
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundImage()
{
const nsStyleImageLayers& layers = StyleBackground()->mImage;
return DoGetImageLayerImage(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundBlendMode()
{
return GetBackgroundList(&nsStyleImageLayers::Layer::mBlendMode,
&nsStyleImageLayers::mBlendModeCount,
StyleBackground()->mImage,
nsCSSProps::kBlendModeKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundOrigin()
{
return GetBackgroundList(&nsStyleImageLayers::Layer::mOrigin,
&nsStyleImageLayers::mOriginCount,
StyleBackground()->mImage,
nsCSSProps::kBackgroundOriginKTable);
}
void
nsComputedDOMStyle::SetValueToPositionCoord(
const Position::Coord& aCoord,
nsROCSSPrimitiveValue* aValue)
{
if (!aCoord.mHasPercent) {
MOZ_ASSERT(aCoord.mPercent == 0.0f,
"Shouldn't have mPercent!");
aValue->SetAppUnits(aCoord.mLength);
} else if (aCoord.mLength == 0) {
aValue->SetPercent(aCoord.mPercent);
} else {
SetValueToCalc(&aCoord, aValue);
}
}
void
nsComputedDOMStyle::SetValueToPosition(
const Position& aPosition,
nsDOMCSSValueList* aValueList)
{
RefPtr<nsROCSSPrimitiveValue> valX = new nsROCSSPrimitiveValue;
SetValueToPositionCoord(aPosition.mXPosition, valX);
aValueList->AppendCSSValue(valX.forget());
RefPtr<nsROCSSPrimitiveValue> valY = new nsROCSSPrimitiveValue;
SetValueToPositionCoord(aPosition.mYPosition, valY);
aValueList->AppendCSSValue(valY.forget());
}
void
nsComputedDOMStyle::SetValueToURLValue(const css::URLValueData* aURL,
nsROCSSPrimitiveValue* aValue)
{
if (!aURL) {
aValue->SetIdent(eCSSKeyword_none);
return;
}
// If we have a usable nsIURI in the URLValueData, and the url() wasn't
// a fragment-only URL, serialize the nsIURI.
if (!aURL->IsLocalRef()) {
if (nsIURI* uri = aURL->GetURI()) {
aValue->SetURI(uri);
return;
}
}
// Otherwise, serialize the specified URL value.
nsAutoString source;
aURL->GetSourceString(source);
nsAutoString url;
url.AppendLiteral(u"url(");
nsStyleUtil::AppendEscapedCSSString(source, url, '"');
url.Append(')');
aValue->SetString(url);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundPosition()
{
const nsStyleImageLayers& layers = StyleBackground()->mImage;
return DoGetImageLayerPosition(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundPositionX()
{
const nsStyleImageLayers& layers = StyleBackground()->mImage;
return DoGetImageLayerPositionX(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundPositionY()
{
const nsStyleImageLayers& layers = StyleBackground()->mImage;
return DoGetImageLayerPositionY(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundRepeat()
{
const nsStyleImageLayers& layers = StyleBackground()->mImage;
return DoGetImageLayerRepeat(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBackgroundSize()
{
const nsStyleImageLayers& layers = StyleBackground()->mImage;
return DoGetImageLayerSize(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridTemplateAreas()
{
const css::GridTemplateAreasValue* areas =
StylePosition()->mGridTemplateAreas;
if (!areas) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
MOZ_ASSERT(!areas->mTemplates.IsEmpty(),
"Unexpected empty array in GridTemplateAreasValue");
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
for (uint32_t i = 0; i < areas->mTemplates.Length(); i++) {
nsAutoString str;
nsStyleUtil::AppendEscapedCSSString(areas->mTemplates[i], str);
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetString(str);
valueList->AppendCSSValue(val.forget());
}
return valueList.forget();
}
void
nsComputedDOMStyle::AppendGridLineNames(nsString& aResult,
const nsTArray<nsString>& aLineNames)
{
uint32_t numLines = aLineNames.Length();
if (numLines == 0) {
return;
}
for (uint32_t i = 0;;) {
nsStyleUtil::AppendEscapedCSSIdent(aLineNames[i], aResult);
if (++i == numLines) {
break;
}
aResult.Append(' ');
}
}
void
nsComputedDOMStyle::AppendGridLineNames(nsDOMCSSValueList* aValueList,
const nsTArray<nsString>& aLineNames,
bool aSuppressEmptyList)
{
if (aLineNames.IsEmpty() && aSuppressEmptyList) {
return;
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString lineNamesString;
lineNamesString.Assign('[');
AppendGridLineNames(lineNamesString, aLineNames);
lineNamesString.Append(']');
val->SetString(lineNamesString);
aValueList->AppendCSSValue(val.forget());
}
void
nsComputedDOMStyle::AppendGridLineNames(nsDOMCSSValueList* aValueList,
const nsTArray<nsString>& aLineNames1,
const nsTArray<nsString>& aLineNames2)
{
if (aLineNames1.IsEmpty() && aLineNames2.IsEmpty()) {
return;
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString lineNamesString;
lineNamesString.Assign('[');
if (!aLineNames1.IsEmpty()) {
AppendGridLineNames(lineNamesString, aLineNames1);
}
if (!aLineNames2.IsEmpty()) {
if (!aLineNames1.IsEmpty()) {
lineNamesString.Append(' ');
}
AppendGridLineNames(lineNamesString, aLineNames2);
}
lineNamesString.Append(']');
val->SetString(lineNamesString);
aValueList->AppendCSSValue(val.forget());
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetGridTrackSize(const nsStyleCoord& aMinValue,
const nsStyleCoord& aMaxValue)
{
if (aMinValue.GetUnit() == eStyleUnit_None) {
// A fit-content() function.
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString argumentStr, fitContentStr;
fitContentStr.AppendLiteral("fit-content(");
MOZ_ASSERT(aMaxValue.IsCoordPercentCalcUnit(),
"unexpected unit for fit-content() argument value");
SetValueToCoord(val, aMaxValue, true);
val->GetCssText(argumentStr);
fitContentStr.Append(argumentStr);
fitContentStr.Append(char16_t(')'));
val->SetString(fitContentStr);
return val.forget();
}
if (aMinValue == aMaxValue) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, aMinValue, true,
nullptr, nsCSSProps::kGridTrackBreadthKTable);
return val.forget();
}
// minmax(auto, <flex>) is equivalent to (and is our internal representation
// of) <flex>, and both compute to <flex>
if (aMinValue.GetUnit() == eStyleUnit_Auto &&
aMaxValue.GetUnit() == eStyleUnit_FlexFraction) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, aMaxValue, true);
return val.forget();
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString argumentStr, minmaxStr;
minmaxStr.AppendLiteral("minmax(");
SetValueToCoord(val, aMinValue, true,
nullptr, nsCSSProps::kGridTrackBreadthKTable);
val->GetCssText(argumentStr);
minmaxStr.Append(argumentStr);
minmaxStr.AppendLiteral(", ");
SetValueToCoord(val, aMaxValue, true,
nullptr, nsCSSProps::kGridTrackBreadthKTable);
val->GetCssText(argumentStr);
minmaxStr.Append(argumentStr);
minmaxStr.Append(char16_t(')'));
val->SetString(minmaxStr);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetGridTemplateColumnsRows(
const nsStyleGridTemplate& aTrackList,
const ComputedGridTrackInfo* aTrackInfo)
{
if (aTrackList.mIsSubgrid) {
// XXX TODO: add support for repeat(auto-fill) for 'subgrid' (bug 1234311)
NS_ASSERTION(aTrackList.mMinTrackSizingFunctions.IsEmpty() &&
aTrackList.mMaxTrackSizingFunctions.IsEmpty(),
"Unexpected sizing functions with subgrid");
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
RefPtr<nsROCSSPrimitiveValue> subgridKeyword = new nsROCSSPrimitiveValue;
subgridKeyword->SetIdent(eCSSKeyword_subgrid);
valueList->AppendCSSValue(subgridKeyword.forget());
for (uint32_t i = 0, len = aTrackList.mLineNameLists.Length(); ; ++i) {
if (MOZ_UNLIKELY(aTrackList.IsRepeatAutoIndex(i))) {
MOZ_ASSERT(aTrackList.mIsAutoFill, "subgrid can only have 'auto-fill'");
MOZ_ASSERT(aTrackList.mRepeatAutoLineNameListAfter.IsEmpty(),
"mRepeatAutoLineNameListAfter isn't used for subgrid");
RefPtr<nsROCSSPrimitiveValue> start = new nsROCSSPrimitiveValue;
start->SetString(NS_LITERAL_STRING("repeat(auto-fill,"));
valueList->AppendCSSValue(start.forget());
AppendGridLineNames(valueList, aTrackList.mRepeatAutoLineNameListBefore,
/*aSuppressEmptyList*/ false);
RefPtr<nsROCSSPrimitiveValue> end = new nsROCSSPrimitiveValue;
end->SetString(NS_LITERAL_STRING(")"));
valueList->AppendCSSValue(end.forget());
}
if (i == len) {
break;
}
AppendGridLineNames(valueList, aTrackList.mLineNameLists[i],
/*aSuppressEmptyList*/ false);
}
return valueList.forget();
}
uint32_t numSizes = aTrackList.mMinTrackSizingFunctions.Length();
MOZ_ASSERT(aTrackList.mMaxTrackSizingFunctions.Length() == numSizes,
"Different number of min and max track sizing functions");
if (aTrackInfo) {
DebugOnly<bool> isAutoFill =
aTrackList.HasRepeatAuto() && aTrackList.mIsAutoFill;
DebugOnly<bool> isAutoFit =
aTrackList.HasRepeatAuto() && !aTrackList.mIsAutoFill;
DebugOnly<uint32_t> numExplicitTracks = aTrackInfo->mNumExplicitTracks;
MOZ_ASSERT(numExplicitTracks == numSizes ||
(isAutoFill && numExplicitTracks >= numSizes) ||
(isAutoFit && numExplicitTracks + 1 >= numSizes),
"expected all explicit tracks (or possibly one less, if there's "
"an 'auto-fit' track, since that can collapse away)");
numSizes = aTrackInfo->mSizes.Length();
}
// An empty <track-list> without repeats is represented as "none" in syntax.
if (numSizes == 0 && !aTrackList.HasRepeatAuto()) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
if (aTrackInfo) {
// We've done layout on the grid and have resolved the sizes of its tracks,
// so we'll return those sizes here. The grid spec says we MAY use
// repeat(<positive-integer>, Npx) here for consecutive tracks with the same
// size, but that doesn't seem worth doing since even for repeat(auto-*)
// the resolved size might differ for the repeated tracks.
const nsTArray<nscoord>& trackSizes = aTrackInfo->mSizes;
const uint32_t numExplicitTracks = aTrackInfo->mNumExplicitTracks;
const uint32_t numLeadingImplicitTracks = aTrackInfo->mNumLeadingImplicitTracks;
MOZ_ASSERT(numSizes >= numLeadingImplicitTracks + numExplicitTracks);
// Add any leading implicit tracks.
for (uint32_t i = 0; i < numLeadingImplicitTracks; ++i) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetAppUnits(trackSizes[i]);
valueList->AppendCSSValue(val.forget());
}
// Then add any explicit tracks and removed auto-fit tracks.
if (numExplicitTracks || aTrackList.HasRepeatAuto()) {
int32_t endOfRepeat = 0; // first index after any repeat() tracks
int32_t offsetToLastRepeat = 0;
if (aTrackList.HasRepeatAuto()) {
// offsetToLastRepeat is -1 if all repeat(auto-fit) tracks are empty
offsetToLastRepeat = numExplicitTracks + 1 - aTrackList.mLineNameLists.Length();
endOfRepeat = aTrackList.mRepeatAutoIndex + offsetToLastRepeat + 1;
}
uint32_t repeatIndex = 0;
uint32_t numRepeatTracks = aTrackInfo->mRemovedRepeatTracks.Length();
enum LinePlacement { LinesPrecede, LinesFollow, LinesBetween };
auto AppendRemovedAutoFits = [this, aTrackInfo, &valueList, aTrackList,
&repeatIndex,
numRepeatTracks](LinePlacement aPlacement)
{
// Add in removed auto-fit tracks and lines here, if necessary
bool atLeastOneTrackReported = false;
while (repeatIndex < numRepeatTracks &&
aTrackInfo->mRemovedRepeatTracks[repeatIndex]) {
if ((aPlacement == LinesPrecede) ||
((aPlacement == LinesBetween) && atLeastOneTrackReported)) {
// Precede it with the lines between repeats.
AppendGridLineNames(valueList,
aTrackList.mRepeatAutoLineNameListAfter,
aTrackList.mRepeatAutoLineNameListBefore);
}
// Removed 'auto-fit' tracks are reported as 0px.
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetAppUnits(0);
valueList->AppendCSSValue(val.forget());
atLeastOneTrackReported = true;
if (aPlacement == LinesFollow) {
// Follow it with the lines between repeats.
AppendGridLineNames(valueList,
aTrackList.mRepeatAutoLineNameListAfter,
aTrackList.mRepeatAutoLineNameListBefore);
}
repeatIndex++;
}
repeatIndex++;
};
for (int32_t i = 0;; i++) {
if (aTrackList.HasRepeatAuto()) {
if (i == aTrackList.mRepeatAutoIndex) {
const nsTArray<nsString>& lineNames = aTrackList.mLineNameLists[i];
if (i == endOfRepeat) {
// All auto-fit tracks are empty, but we report them anyway.
AppendGridLineNames(valueList, lineNames,
aTrackList.mRepeatAutoLineNameListBefore);
AppendRemovedAutoFits(LinesBetween);
AppendGridLineNames(valueList,
aTrackList.mRepeatAutoLineNameListAfter,
aTrackList.mLineNameLists[i + 1]);
} else {
AppendGridLineNames(valueList, lineNames,
aTrackList.mRepeatAutoLineNameListBefore);
AppendRemovedAutoFits(LinesFollow);
}
} else if (i == endOfRepeat) {
// Before appending the last line, finish off any removed auto-fits.
AppendRemovedAutoFits(LinesPrecede);
const nsTArray<nsString>& lineNames =
aTrackList.mLineNameLists[aTrackList.mRepeatAutoIndex + 1];
AppendGridLineNames(valueList,
aTrackList.mRepeatAutoLineNameListAfter,
lineNames);
} else if (i > aTrackList.mRepeatAutoIndex && i < endOfRepeat) {
AppendGridLineNames(valueList,
aTrackList.mRepeatAutoLineNameListAfter,
aTrackList.mRepeatAutoLineNameListBefore);
AppendRemovedAutoFits(LinesFollow);
} else {
uint32_t j = i > endOfRepeat ? i - offsetToLastRepeat : i;
const nsTArray<nsString>& lineNames = aTrackList.mLineNameLists[j];
AppendGridLineNames(valueList, lineNames);
}
} else {
const nsTArray<nsString>& lineNames = aTrackList.mLineNameLists[i];
AppendGridLineNames(valueList, lineNames);
}
if (uint32_t(i) == numExplicitTracks) {
break;
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetAppUnits(trackSizes[i + numLeadingImplicitTracks]);
valueList->AppendCSSValue(val.forget());
}
}
// Add any trailing implicit tracks.
for (uint32_t i = numLeadingImplicitTracks + numExplicitTracks;
i < numSizes; ++i) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetAppUnits(trackSizes[i]);
valueList->AppendCSSValue(val.forget());
}
} else {
// We don't have a frame. So, we'll just return a serialization of
// the tracks from the style (without resolved sizes).
for (uint32_t i = 0;; i++) {
const nsTArray<nsString>& lineNames = aTrackList.mLineNameLists[i];
if (!lineNames.IsEmpty()) {
AppendGridLineNames(valueList, lineNames);
}
if (i == numSizes) {
break;
}
if (MOZ_UNLIKELY(aTrackList.IsRepeatAutoIndex(i))) {
RefPtr<nsROCSSPrimitiveValue> start = new nsROCSSPrimitiveValue;
start->SetString(aTrackList.mIsAutoFill ? NS_LITERAL_STRING("repeat(auto-fill,")
: NS_LITERAL_STRING("repeat(auto-fit,"));
valueList->AppendCSSValue(start.forget());
if (!aTrackList.mRepeatAutoLineNameListBefore.IsEmpty()) {
AppendGridLineNames(valueList, aTrackList.mRepeatAutoLineNameListBefore);
}
valueList->AppendCSSValue(
GetGridTrackSize(aTrackList.mMinTrackSizingFunctions[i],
aTrackList.mMaxTrackSizingFunctions[i]));
if (!aTrackList.mRepeatAutoLineNameListAfter.IsEmpty()) {
AppendGridLineNames(valueList, aTrackList.mRepeatAutoLineNameListAfter);
}
RefPtr<nsROCSSPrimitiveValue> end = new nsROCSSPrimitiveValue;
end->SetString(NS_LITERAL_STRING(")"));
valueList->AppendCSSValue(end.forget());
} else {
valueList->AppendCSSValue(
GetGridTrackSize(aTrackList.mMinTrackSizingFunctions[i],
aTrackList.mMaxTrackSizingFunctions[i]));
}
}
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridAutoFlow()
{
nsAutoString str;
nsStyleUtil::AppendBitmaskCSSValue(eCSSProperty_grid_auto_flow,
StylePosition()->mGridAutoFlow,
NS_STYLE_GRID_AUTO_FLOW_ROW,
NS_STYLE_GRID_AUTO_FLOW_DENSE,
str);
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetString(str);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridAutoColumns()
{
return GetGridTrackSize(StylePosition()->mGridAutoColumnsMin,
StylePosition()->mGridAutoColumnsMax);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridAutoRows()
{
return GetGridTrackSize(StylePosition()->mGridAutoRowsMin,
StylePosition()->mGridAutoRowsMax);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridTemplateColumns()
{
const ComputedGridTrackInfo* info = nullptr;
nsGridContainerFrame* gridFrame =
nsGridContainerFrame::GetGridFrameWithComputedInfo(
mContent->GetPrimaryFrame());
if (gridFrame) {
info = gridFrame->GetComputedTemplateColumns();
}
return GetGridTemplateColumnsRows(StylePosition()->mGridTemplateColumns, info);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridTemplateRows()
{
const ComputedGridTrackInfo* info = nullptr;
nsGridContainerFrame* gridFrame =
nsGridContainerFrame::GetGridFrameWithComputedInfo(
mContent->GetPrimaryFrame());
if (gridFrame) {
info = gridFrame->GetComputedTemplateRows();
}
return GetGridTemplateColumnsRows(StylePosition()->mGridTemplateRows, info);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetGridLine(const nsStyleGridLine& aGridLine)
{
if (aGridLine.IsAuto()) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_auto);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
if (aGridLine.mHasSpan) {
RefPtr<nsROCSSPrimitiveValue> span = new nsROCSSPrimitiveValue;
span->SetIdent(eCSSKeyword_span);
valueList->AppendCSSValue(span.forget());
}
if (aGridLine.mInteger != 0) {
RefPtr<nsROCSSPrimitiveValue> integer = new nsROCSSPrimitiveValue;
integer->SetNumber(aGridLine.mInteger);
valueList->AppendCSSValue(integer.forget());
}
if (!aGridLine.mLineName.IsEmpty()) {
RefPtr<nsROCSSPrimitiveValue> lineName = new nsROCSSPrimitiveValue;
nsString escapedLineName;
nsStyleUtil::AppendEscapedCSSIdent(aGridLine.mLineName, escapedLineName);
lineName->SetString(escapedLineName);
valueList->AppendCSSValue(lineName.forget());
}
NS_ASSERTION(valueList->Length() > 0,
"Should have appended at least one value");
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridColumnStart()
{
return GetGridLine(StylePosition()->mGridColumnStart);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridColumnEnd()
{
return GetGridLine(StylePosition()->mGridColumnEnd);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridRowStart()
{
return GetGridLine(StylePosition()->mGridRowStart);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridRowEnd()
{
return GetGridLine(StylePosition()->mGridRowEnd);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridColumnGap()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StylePosition()->mGridColumnGap, true);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetGridRowGap()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StylePosition()->mGridRowGap, true);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPaddingTop()
{
return GetPaddingWidthFor(eSideTop);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPaddingBottom()
{
return GetPaddingWidthFor(eSideBottom);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPaddingLeft()
{
return GetPaddingWidthFor(eSideLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPaddingRight()
{
return GetPaddingWidthFor(eSideRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderCollapse()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleTableBorder()->mBorderCollapse,
nsCSSProps::kBorderCollapseKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderSpacing()
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
RefPtr<nsROCSSPrimitiveValue> xSpacing = new nsROCSSPrimitiveValue;
RefPtr<nsROCSSPrimitiveValue> ySpacing = new nsROCSSPrimitiveValue;
const nsStyleTableBorder *border = StyleTableBorder();
xSpacing->SetAppUnits(border->mBorderSpacingCol);
ySpacing->SetAppUnits(border->mBorderSpacingRow);
valueList->AppendCSSValue(xSpacing.forget());
valueList->AppendCSSValue(ySpacing.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetCaptionSide()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleTableBorder()->mCaptionSide,
nsCSSProps::kCaptionSideKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetEmptyCells()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleTableBorder()->mEmptyCells,
nsCSSProps::kEmptyCellsKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTableLayout()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleTable()->mLayoutStrategy,
nsCSSProps::kTableLayoutKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderTopStyle()
{
return GetBorderStyleFor(eSideTop);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderBottomStyle()
{
return GetBorderStyleFor(eSideBottom);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderLeftStyle()
{
return GetBorderStyleFor(eSideLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderRightStyle()
{
return GetBorderStyleFor(eSideRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderBottomColors()
{
return GetBorderColorsFor(eSideBottom);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderLeftColors()
{
return GetBorderColorsFor(eSideLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderRightColors()
{
return GetBorderColorsFor(eSideRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderTopColors()
{
return GetBorderColorsFor(eSideTop);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderBottomLeftRadius()
{
return GetEllipseRadii(StyleBorder()->mBorderRadius,
eCornerBottomLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderBottomRightRadius()
{
return GetEllipseRadii(StyleBorder()->mBorderRadius,
eCornerBottomRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderTopLeftRadius()
{
return GetEllipseRadii(StyleBorder()->mBorderRadius,
eCornerTopLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderTopRightRadius()
{
return GetEllipseRadii(StyleBorder()->mBorderRadius,
eCornerTopRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderTopWidth()
{
return GetBorderWidthFor(eSideTop);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderBottomWidth()
{
return GetBorderWidthFor(eSideBottom);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderLeftWidth()
{
return GetBorderWidthFor(eSideLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderRightWidth()
{
return GetBorderWidthFor(eSideRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderTopColor()
{
return GetBorderColorFor(eSideTop);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderBottomColor()
{
return GetBorderColorFor(eSideBottom);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderLeftColor()
{
return GetBorderColorFor(eSideLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderRightColor()
{
return GetBorderColorFor(eSideRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMarginTopWidth()
{
return GetMarginWidthFor(eSideTop);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMarginBottomWidth()
{
return GetMarginWidthFor(eSideBottom);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMarginLeftWidth()
{
return GetMarginWidthFor(eSideLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMarginRightWidth()
{
return GetMarginWidthFor(eSideRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOrient()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mOrient,
nsCSSProps::kOrientKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetScrollBehavior()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mScrollBehavior,
nsCSSProps::kScrollBehaviorKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetScrollSnapType()
{
const nsStyleDisplay* display = StyleDisplay();
if (display->mScrollSnapTypeX != display->mScrollSnapTypeY) {
// No value to return. We can't express this combination of
// values as a shorthand.
return nullptr;
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mScrollSnapTypeX,
nsCSSProps::kScrollSnapTypeKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetScrollSnapTypeX()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mScrollSnapTypeX,
nsCSSProps::kScrollSnapTypeKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetScrollSnapTypeY()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mScrollSnapTypeY,
nsCSSProps::kScrollSnapTypeKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetScrollSnapPoints(const nsStyleCoord& aCoord)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
if (aCoord.GetUnit() == eStyleUnit_None) {
val->SetIdent(eCSSKeyword_none);
} else {
nsAutoString argumentString;
SetCssTextToCoord(argumentString, aCoord);
nsAutoString tmp;
tmp.AppendLiteral("repeat(");
tmp.Append(argumentString);
tmp.Append(')');
val->SetString(tmp);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetScrollSnapPointsX()
{
return GetScrollSnapPoints(StyleDisplay()->mScrollSnapPointsX);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetScrollSnapPointsY()
{
return GetScrollSnapPoints(StyleDisplay()->mScrollSnapPointsY);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetScrollSnapDestination()
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
SetValueToPosition(StyleDisplay()->mScrollSnapDestination, valueList);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetScrollSnapCoordinate()
{
const nsStyleDisplay* sd = StyleDisplay();
if (sd->mScrollSnapCoordinate.IsEmpty()) {
// Having no snap coordinates is interpreted as "none"
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
} else {
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (size_t i = 0, i_end = sd->mScrollSnapCoordinate.Length(); i < i_end; ++i) {
RefPtr<nsDOMCSSValueList> itemList = GetROCSSValueList(false);
SetValueToPosition(sd->mScrollSnapCoordinate[i], itemList);
valueList->AppendCSSValue(itemList.forget());
}
return valueList.forget();
}
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOutlineWidth()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleOutline* outline = StyleOutline();
nscoord width;
if (outline->mOutlineStyle == NS_STYLE_BORDER_STYLE_NONE) {
NS_ASSERTION(outline->GetOutlineWidth() == 0, "unexpected width");
width = 0;
} else {
width = outline->GetOutlineWidth();
}
val->SetAppUnits(width);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOutlineStyle()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleOutline()->mOutlineStyle,
nsCSSProps::kOutlineStyleKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOutlineOffset()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetAppUnits(StyleOutline()->mOutlineOffset);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOutlineRadiusBottomLeft()
{
return GetEllipseRadii(StyleOutline()->mOutlineRadius,
eCornerBottomLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOutlineRadiusBottomRight()
{
return GetEllipseRadii(StyleOutline()->mOutlineRadius,
eCornerBottomRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOutlineRadiusTopLeft()
{
return GetEllipseRadii(StyleOutline()->mOutlineRadius,
eCornerTopLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOutlineRadiusTopRight()
{
return GetEllipseRadii(StyleOutline()->mOutlineRadius,
eCornerTopRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOutlineColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueFromComplexColor(val, StyleOutline()->mOutlineColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetEllipseRadii(const nsStyleCorners& aRadius,
Corner aFullCorner)
{
nsStyleCoord radiusX = aRadius.Get(FullToHalfCorner(aFullCorner, false));
nsStyleCoord radiusY = aRadius.Get(FullToHalfCorner(aFullCorner, true));
// for compatibility, return a single value if X and Y are equal
if (radiusX == radiusY) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, radiusX, true);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
RefPtr<nsROCSSPrimitiveValue> valX = new nsROCSSPrimitiveValue;
RefPtr<nsROCSSPrimitiveValue> valY = new nsROCSSPrimitiveValue;
SetValueToCoord(valX, radiusX, true);
SetValueToCoord(valY, radiusY, true);
valueList->AppendCSSValue(valX.forget());
valueList->AppendCSSValue(valY.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetCSSShadowArray(nsCSSShadowArray* aArray,
const nscolor& aDefaultColor,
bool aIsBoxShadow)
{
if (!aArray) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
static nscoord nsCSSShadowItem::* const shadowValuesNoSpread[] = {
&nsCSSShadowItem::mXOffset,
&nsCSSShadowItem::mYOffset,
&nsCSSShadowItem::mRadius
};
static nscoord nsCSSShadowItem::* const shadowValuesWithSpread[] = {
&nsCSSShadowItem::mXOffset,
&nsCSSShadowItem::mYOffset,
&nsCSSShadowItem::mRadius,
&nsCSSShadowItem::mSpread
};
nscoord nsCSSShadowItem::* const * shadowValues;
uint32_t shadowValuesLength;
if (aIsBoxShadow) {
shadowValues = shadowValuesWithSpread;
shadowValuesLength = ArrayLength(shadowValuesWithSpread);
} else {
shadowValues = shadowValuesNoSpread;
shadowValuesLength = ArrayLength(shadowValuesNoSpread);
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (nsCSSShadowItem *item = aArray->ShadowAt(0),
*item_end = item + aArray->Length();
item < item_end; ++item) {
RefPtr<nsDOMCSSValueList> itemList = GetROCSSValueList(false);
// Color is either the specified shadow color or the foreground color
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nscolor shadowColor;
if (item->mHasColor) {
shadowColor = item->mColor;
} else {
shadowColor = aDefaultColor;
}
SetToRGBAColor(val, shadowColor);
itemList->AppendCSSValue(val.forget());
// Set the offsets, blur radius, and spread if available
for (uint32_t i = 0; i < shadowValuesLength; ++i) {
val = new nsROCSSPrimitiveValue;
val->SetAppUnits(item->*(shadowValues[i]));
itemList->AppendCSSValue(val.forget());
}
if (item->mInset && aIsBoxShadow) {
// This is an inset box-shadow
val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(
uint8_t(StyleBoxShadowType::Inset),
nsCSSProps::kBoxShadowTypeKTable));
itemList->AppendCSSValue(val.forget());
}
valueList->AppendCSSValue(itemList.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBoxDecorationBreak()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleBorder()->mBoxDecorationBreak,
nsCSSProps::kBoxDecorationBreakKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBoxShadow()
{
return GetCSSShadowArray(StyleEffects()->mBoxShadow,
StyleColor()->mColor,
true);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetZIndex()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StylePosition()->mZIndex, false);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetListStyleImage()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsCOMPtr<nsIURI> uri = StyleList()->GetListStyleImageURI();
if (!uri) {
val->SetIdent(eCSSKeyword_none);
} else {
val->SetURI(uri);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetListStylePosition()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleList()->mListStylePosition,
nsCSSProps::kListStylePositionKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetListStyleType()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
CounterStyle* style = StyleList()->GetCounterStyle();
AnonymousCounterStyle* anonymous = style->AsAnonymous();
nsAutoString tmp;
if (!anonymous) {
// want SetIdent
nsString type;
StyleList()->GetListStyleType(type);
nsStyleUtil::AppendEscapedCSSIdent(type, tmp);
} else if (anonymous->IsSingleString()) {
const nsTArray<nsString>& symbols = anonymous->GetSymbols();
MOZ_ASSERT(symbols.Length() == 1);
nsStyleUtil::AppendEscapedCSSString(symbols[0], tmp);
} else {
tmp.AppendLiteral("symbols(");
uint8_t system = anonymous->GetSystem();
NS_ASSERTION(system == NS_STYLE_COUNTER_SYSTEM_CYCLIC ||
system == NS_STYLE_COUNTER_SYSTEM_NUMERIC ||
system == NS_STYLE_COUNTER_SYSTEM_ALPHABETIC ||
system == NS_STYLE_COUNTER_SYSTEM_SYMBOLIC ||
system == NS_STYLE_COUNTER_SYSTEM_FIXED,
"Invalid system for anonymous counter style.");
if (system != NS_STYLE_COUNTER_SYSTEM_SYMBOLIC) {
AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(
system, nsCSSProps::kCounterSystemKTable), tmp);
tmp.Append(' ');
}
const nsTArray<nsString>& symbols = anonymous->GetSymbols();
NS_ASSERTION(symbols.Length() > 0,
"No symbols in the anonymous counter style");
for (size_t i = 0, iend = symbols.Length(); i < iend; i++) {
nsStyleUtil::AppendEscapedCSSString(symbols[i], tmp);
tmp.Append(' ');
}
tmp.Replace(tmp.Length() - 1, 1, char16_t(')'));
}
val->SetString(tmp);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetImageRegion()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleList* list = StyleList();
if (list->mImageRegion.width <= 0 || list->mImageRegion.height <= 0) {
val->SetIdent(eCSSKeyword_auto);
} else {
// create the cssvalues for the sides, stick them in the rect object
nsROCSSPrimitiveValue *topVal = new nsROCSSPrimitiveValue;
nsROCSSPrimitiveValue *rightVal = new nsROCSSPrimitiveValue;
nsROCSSPrimitiveValue *bottomVal = new nsROCSSPrimitiveValue;
nsROCSSPrimitiveValue *leftVal = new nsROCSSPrimitiveValue;
nsDOMCSSRect * domRect = new nsDOMCSSRect(topVal, rightVal,
bottomVal, leftVal);
topVal->SetAppUnits(list->mImageRegion.y);
rightVal->SetAppUnits(list->mImageRegion.width + list->mImageRegion.x);
bottomVal->SetAppUnits(list->mImageRegion.height + list->mImageRegion.y);
leftVal->SetAppUnits(list->mImageRegion.x);
val->SetRect(domRect);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetInitialLetter()
{
const nsStyleTextReset* textReset = StyleTextReset();
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
if (textReset->mInitialLetterSink == 0) {
val->SetIdent(eCSSKeyword_normal);
return val.forget();
} else {
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
val->SetNumber(textReset->mInitialLetterSize);
valueList->AppendCSSValue(val.forget());
RefPtr<nsROCSSPrimitiveValue> second = new nsROCSSPrimitiveValue;
second->SetNumber(textReset->mInitialLetterSink);
valueList->AppendCSSValue(second.forget());
return valueList.forget();
}
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetLineHeight()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nscoord lineHeight;
if (GetLineHeightCoord(lineHeight)) {
val->SetAppUnits(lineHeight);
} else {
SetValueToCoord(val, StyleText()->mLineHeight, true,
nullptr, nsCSSProps::kLineHeightKTable);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetRubyAlign()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(
StyleText()->mRubyAlign, nsCSSProps::kRubyAlignKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetRubyPosition()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(
StyleText()->mRubyPosition, nsCSSProps::kRubyPositionKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetVerticalAlign()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StyleDisplay()->mVerticalAlign, false,
nullptr, nsCSSProps::kVerticalAlignKTable);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::CreateTextAlignValue(uint8_t aAlign, bool aAlignTrue,
const KTableEntry aTable[])
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(aAlign, aTable));
if (!aAlignTrue) {
return val.forget();
}
RefPtr<nsROCSSPrimitiveValue> first = new nsROCSSPrimitiveValue;
first->SetIdent(eCSSKeyword_unsafe);
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
valueList->AppendCSSValue(first.forget());
valueList->AppendCSSValue(val.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextAlign()
{
const nsStyleText* style = StyleText();
return CreateTextAlignValue(style->mTextAlign, style->mTextAlignTrue,
nsCSSProps::kTextAlignKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextAlignLast()
{
const nsStyleText* style = StyleText();
return CreateTextAlignValue(style->mTextAlignLast, style->mTextAlignLastTrue,
nsCSSProps::kTextAlignLastKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextCombineUpright()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
uint8_t tch = StyleText()->mTextCombineUpright;
if (tch <= NS_STYLE_TEXT_COMBINE_UPRIGHT_ALL) {
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(tch,
nsCSSProps::kTextCombineUprightKTable));
} else if (tch <= NS_STYLE_TEXT_COMBINE_UPRIGHT_DIGITS_2) {
val->SetString(NS_LITERAL_STRING("digits 2"));
} else if (tch <= NS_STYLE_TEXT_COMBINE_UPRIGHT_DIGITS_3) {
val->SetString(NS_LITERAL_STRING("digits 3"));
} else {
val->SetString(NS_LITERAL_STRING("digits 4"));
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextDecoration()
{
const nsStyleTextReset* textReset = StyleTextReset();
bool isInitialStyle =
textReset->mTextDecorationStyle == NS_STYLE_TEXT_DECORATION_STYLE_SOLID;
StyleComplexColor color = textReset->mTextDecorationColor;
if (isInitialStyle && color.IsCurrentColor()) {
return DoGetTextDecorationLine();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
valueList->AppendCSSValue(DoGetTextDecorationLine());
if (!isInitialStyle) {
valueList->AppendCSSValue(DoGetTextDecorationStyle());
}
if (!color.IsCurrentColor()) {
valueList->AppendCSSValue(DoGetTextDecorationColor());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextDecorationColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueFromComplexColor(val, StyleTextReset()->mTextDecorationColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextDecorationLine()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t intValue = StyleTextReset()->mTextDecorationLine;
if (NS_STYLE_TEXT_DECORATION_LINE_NONE == intValue) {
val->SetIdent(eCSSKeyword_none);
} else {
nsAutoString decorationLineString;
// Clear the OVERRIDE_ALL bits -- we don't want these to appear in
// the computed style.
intValue &= ~NS_STYLE_TEXT_DECORATION_LINE_OVERRIDE_ALL;
nsStyleUtil::AppendBitmaskCSSValue(eCSSProperty_text_decoration_line,
intValue, NS_STYLE_TEXT_DECORATION_LINE_UNDERLINE,
NS_STYLE_TEXT_DECORATION_LINE_BLINK, decorationLineString);
val->SetString(decorationLineString);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextDecorationStyle()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleTextReset()->mTextDecorationStyle,
nsCSSProps::kTextDecorationStyleKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextEmphasisColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueFromComplexColor(val, StyleText()->mTextEmphasisColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextEmphasisPosition()
{
auto position = StyleText()->mTextEmphasisPosition;
MOZ_ASSERT(!(position & NS_STYLE_TEXT_EMPHASIS_POSITION_OVER) !=
!(position & NS_STYLE_TEXT_EMPHASIS_POSITION_UNDER));
RefPtr<nsROCSSPrimitiveValue> first = new nsROCSSPrimitiveValue;
first->SetIdent((position & NS_STYLE_TEXT_EMPHASIS_POSITION_OVER) ?
eCSSKeyword_over : eCSSKeyword_under);
MOZ_ASSERT(!(position & NS_STYLE_TEXT_EMPHASIS_POSITION_LEFT) !=
!(position & NS_STYLE_TEXT_EMPHASIS_POSITION_RIGHT));
RefPtr<nsROCSSPrimitiveValue> second = new nsROCSSPrimitiveValue;
second->SetIdent((position & NS_STYLE_TEXT_EMPHASIS_POSITION_LEFT) ?
eCSSKeyword_left : eCSSKeyword_right);
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
valueList->AppendCSSValue(first.forget());
valueList->AppendCSSValue(second.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextEmphasisStyle()
{
auto style = StyleText()->mTextEmphasisStyle;
if (style == NS_STYLE_TEXT_EMPHASIS_STYLE_NONE) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
if (style == NS_STYLE_TEXT_EMPHASIS_STYLE_STRING) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString tmp;
nsStyleUtil::AppendEscapedCSSString(
StyleText()->mTextEmphasisStyleString, tmp);
val->SetString(tmp);
return val.forget();
}
RefPtr<nsROCSSPrimitiveValue> fillVal = new nsROCSSPrimitiveValue;
if ((style & NS_STYLE_TEXT_EMPHASIS_STYLE_FILL_MASK) ==
NS_STYLE_TEXT_EMPHASIS_STYLE_FILLED) {
fillVal->SetIdent(eCSSKeyword_filled);
} else {
MOZ_ASSERT((style & NS_STYLE_TEXT_EMPHASIS_STYLE_FILL_MASK) ==
NS_STYLE_TEXT_EMPHASIS_STYLE_OPEN);
fillVal->SetIdent(eCSSKeyword_open);
}
RefPtr<nsROCSSPrimitiveValue> shapeVal = new nsROCSSPrimitiveValue;
shapeVal->SetIdent(nsCSSProps::ValueToKeywordEnum(
style & NS_STYLE_TEXT_EMPHASIS_STYLE_SHAPE_MASK,
nsCSSProps::kTextEmphasisStyleShapeKTable));
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
valueList->AppendCSSValue(fillVal.forget());
valueList->AppendCSSValue(shapeVal.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextIndent()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StyleText()->mTextIndent, false);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextJustify()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleText()->mTextJustify,
nsCSSProps::kTextJustifyKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextOrientation()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleVisibility()->mTextOrientation,
nsCSSProps::kTextOrientationKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextOverflow()
{
const nsStyleTextReset *style = StyleTextReset();
RefPtr<nsROCSSPrimitiveValue> first = new nsROCSSPrimitiveValue;
const nsStyleTextOverflowSide *side = style->mTextOverflow.GetFirstValue();
if (side->mType == NS_STYLE_TEXT_OVERFLOW_STRING) {
nsAutoString str;
nsStyleUtil::AppendEscapedCSSString(side->mString, str);
first->SetString(str);
} else {
first->SetIdent(
nsCSSProps::ValueToKeywordEnum(side->mType,
nsCSSProps::kTextOverflowKTable));
}
side = style->mTextOverflow.GetSecondValue();
if (!side) {
return first.forget();
}
RefPtr<nsROCSSPrimitiveValue> second = new nsROCSSPrimitiveValue;
if (side->mType == NS_STYLE_TEXT_OVERFLOW_STRING) {
nsAutoString str;
nsStyleUtil::AppendEscapedCSSString(side->mString, str);
second->SetString(str);
} else {
second->SetIdent(
nsCSSProps::ValueToKeywordEnum(side->mType,
nsCSSProps::kTextOverflowKTable));
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
valueList->AppendCSSValue(first.forget());
valueList->AppendCSSValue(second.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextShadow()
{
return GetCSSShadowArray(StyleText()->mTextShadow,
StyleColor()->mColor,
false);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextSizeAdjust()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleText()->mTextSizeAdjust,
nsCSSProps::kTextSizeAdjustKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextTransform()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleText()->mTextTransform,
nsCSSProps::kTextTransformKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTabSize()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StyleText()->mTabSize, true);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetLetterSpacing()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StyleText()->mLetterSpacing, false);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWordSpacing()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StyleText()->mWordSpacing, false);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWhiteSpace()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleText()->mWhiteSpace,
nsCSSProps::kWhitespaceKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWindowDragging()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleUIReset()->mWindowDragging,
nsCSSProps::kWindowDraggingKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWindowShadow()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleUIReset()->mWindowShadow,
nsCSSProps::kWindowShadowKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWordBreak()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleText()->mWordBreak,
nsCSSProps::kWordBreakKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowWrap()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleText()->mOverflowWrap,
nsCSSProps::kOverflowWrapKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetHyphens()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleText()->mHyphens,
nsCSSProps::kHyphensKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWebkitTextFillColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueFromComplexColor(val, StyleText()->mWebkitTextFillColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWebkitTextStrokeColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueFromComplexColor(val, StyleText()->mWebkitTextStrokeColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWebkitTextStrokeWidth()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetAppUnits(StyleText()->mWebkitTextStrokeWidth);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPointerEvents()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleUserInterface()->mPointerEvents,
nsCSSProps::kPointerEventsKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetVisibility()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleVisibility()->mVisible,
nsCSSProps::kVisibilityKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWritingMode()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleVisibility()->mWritingMode,
nsCSSProps::kWritingModeKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetDirection()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleVisibility()->mDirection,
nsCSSProps::kDirectionKTable));
return val.forget();
}
static_assert(NS_STYLE_UNICODE_BIDI_NORMAL == 0,
"unicode-bidi style constants not as expected");
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetUnicodeBidi()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleTextReset()->mUnicodeBidi,
nsCSSProps::kUnicodeBidiKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetCaretColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueFromComplexColor(val, StyleUserInterface()->mCaretColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetCursor()
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
const nsStyleUserInterface *ui = StyleUserInterface();
for (const nsCursorImage& item : ui->mCursorImages) {
RefPtr<nsDOMCSSValueList> itemList = GetROCSSValueList(false);
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToURLValue(item.mImage->GetImageValue(), val);
itemList->AppendCSSValue(val.forget());
if (item.mHaveHotspot) {
RefPtr<nsROCSSPrimitiveValue> valX = new nsROCSSPrimitiveValue;
RefPtr<nsROCSSPrimitiveValue> valY = new nsROCSSPrimitiveValue;
valX->SetNumber(item.mHotspotX);
valY->SetNumber(item.mHotspotY);
itemList->AppendCSSValue(valX.forget());
itemList->AppendCSSValue(valY.forget());
}
valueList->AppendCSSValue(itemList.forget());
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(ui->mCursor,
nsCSSProps::kCursorKTable));
valueList->AppendCSSValue(val.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAppearance()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mAppearance,
nsCSSProps::kAppearanceKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMozAppearance()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mMozAppearance,
nsCSSProps::kMozAppearanceKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBoxAlign()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleXUL()->mBoxAlign,
nsCSSProps::kBoxAlignKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBoxDirection()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleXUL()->mBoxDirection,
nsCSSProps::kBoxDirectionKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBoxFlex()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StyleXUL()->mBoxFlex);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBoxOrdinalGroup()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StyleXUL()->mBoxOrdinal);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBoxOrient()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleXUL()->mBoxOrient,
nsCSSProps::kBoxOrientKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBoxPack()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleXUL()->mBoxPack,
nsCSSProps::kBoxPackKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBoxSizing()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StylePosition()->mBoxSizing,
nsCSSProps::kBoxSizingKTable));
return val.forget();
}
/* Border image properties */
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderImageSource()
{
const nsStyleBorder* border = StyleBorder();
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleImage& image = border->mBorderImageSource;
SetValueToStyleImage(image, val);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderImageSlice()
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
const nsStyleBorder* border = StyleBorder();
// Four slice numbers.
NS_FOR_CSS_SIDES (side) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, border->mBorderImageSlice.Get(side), true, nullptr);
valueList->AppendCSSValue(val.forget());
}
// Fill keyword.
if (NS_STYLE_BORDER_IMAGE_SLICE_FILL == border->mBorderImageFill) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_fill);
valueList->AppendCSSValue(val.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderImageWidth()
{
const nsStyleBorder* border = StyleBorder();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
NS_FOR_CSS_SIDES (side) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, border->mBorderImageWidth.Get(side),
true, nullptr);
valueList->AppendCSSValue(val.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderImageOutset()
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
const nsStyleBorder* border = StyleBorder();
// four slice numbers
NS_FOR_CSS_SIDES (side) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, border->mBorderImageOutset.Get(side),
true, nullptr);
valueList->AppendCSSValue(val.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetBorderImageRepeat()
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
const nsStyleBorder* border = StyleBorder();
// horizontal repeat
RefPtr<nsROCSSPrimitiveValue> valX = new nsROCSSPrimitiveValue;
valX->SetIdent(
nsCSSProps::ValueToKeywordEnum(border->mBorderImageRepeatH,
nsCSSProps::kBorderImageRepeatKTable));
valueList->AppendCSSValue(valX.forget());
// vertical repeat
RefPtr<nsROCSSPrimitiveValue> valY = new nsROCSSPrimitiveValue;
valY->SetIdent(
nsCSSProps::ValueToKeywordEnum(border->mBorderImageRepeatV,
nsCSSProps::kBorderImageRepeatKTable));
valueList->AppendCSSValue(valY.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFlexBasis()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
// XXXdholbert We could make this more automagic and resolve percentages
// if we wanted, by passing in a PercentageBaseGetter instead of nullptr
// below. Logic would go like this:
// if (i'm a flex item) {
// if (my flex container is horizontal) {
// percentageBaseGetter = &nsComputedDOMStyle::GetCBContentWidth;
// } else {
// percentageBaseGetter = &nsComputedDOMStyle::GetCBContentHeight;
// }
// }
SetValueToCoord(val, StylePosition()->mFlexBasis, true,
nullptr, nsCSSProps::kWidthKTable);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFlexDirection()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StylePosition()->mFlexDirection,
nsCSSProps::kFlexDirectionKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFlexGrow()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StylePosition()->mFlexGrow);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFlexShrink()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StylePosition()->mFlexShrink);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFlexWrap()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StylePosition()->mFlexWrap,
nsCSSProps::kFlexWrapKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOrder()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StylePosition()->mOrder);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAlignContent()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString str;
auto align = StylePosition()->mAlignContent;
nsCSSValue::AppendAlignJustifyValueToString(align & NS_STYLE_ALIGN_ALL_BITS, str);
auto fallback = align >> NS_STYLE_ALIGN_ALL_SHIFT;
if (fallback) {
str.Append(' ');
nsCSSValue::AppendAlignJustifyValueToString(fallback, str);
}
val->SetString(str);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAlignItems()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString str;
auto align = StylePosition()->mAlignItems;
nsCSSValue::AppendAlignJustifyValueToString(align, str);
val->SetString(str);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAlignSelf()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString str;
auto align = StylePosition()->mAlignSelf;
nsCSSValue::AppendAlignJustifyValueToString(align, str);
val->SetString(str);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetJustifyContent()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString str;
auto justify = StylePosition()->mJustifyContent;
nsCSSValue::AppendAlignJustifyValueToString(justify & NS_STYLE_JUSTIFY_ALL_BITS, str);
auto fallback = justify >> NS_STYLE_JUSTIFY_ALL_SHIFT;
if (fallback) {
MOZ_ASSERT(nsCSSProps::ValueToKeywordEnum(fallback & ~NS_STYLE_JUSTIFY_FLAG_BITS,
nsCSSProps::kAlignSelfPosition)
!= eCSSKeyword_UNKNOWN, "unknown fallback value");
str.Append(' ');
nsCSSValue::AppendAlignJustifyValueToString(fallback, str);
}
val->SetString(str);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetJustifyItems()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString str;
auto justify =
StylePosition()->ComputedJustifyItems(mStyleContext->GetParentAllowServo());
nsCSSValue::AppendAlignJustifyValueToString(justify, str);
val->SetString(str);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetJustifySelf()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString str;
auto justify = StylePosition()->mJustifySelf;
nsCSSValue::AppendAlignJustifyValueToString(justify, str);
val->SetString(str);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFloatEdge()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(uint8_t(StyleBorder()->mFloatEdge),
nsCSSProps::kFloatEdgeKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetForceBrokenImageIcon()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StyleUIReset()->mForceBrokenImageIcon);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetImageOrientation()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString string;
nsStyleImageOrientation orientation = StyleVisibility()->mImageOrientation;
if (orientation.IsFromImage()) {
string.AppendLiteral("from-image");
} else {
nsStyleUtil::AppendAngleValue(orientation.AngleAsCoord(), string);
if (orientation.IsFlipped()) {
string.AppendLiteral(" flip");
}
}
val->SetString(string);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetIMEMode()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleUIReset()->mIMEMode,
nsCSSProps::kIMEModeKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetUserFocus()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(uint8_t(StyleUserInterface()->mUserFocus),
nsCSSProps::kUserFocusKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetUserInput()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleUserInterface()->mUserInput,
nsCSSProps::kUserInputKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetUserModify()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleUserInterface()->mUserModify,
nsCSSProps::kUserModifyKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetUserSelect()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleUIReset()->mUserSelect,
nsCSSProps::kUserSelectKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetDisplay()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mDisplay,
nsCSSProps::kDisplayKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetContain()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t mask = StyleDisplay()->mContain;
if (mask == 0) {
val->SetIdent(eCSSKeyword_none);
} else if (mask & NS_STYLE_CONTAIN_STRICT) {
NS_ASSERTION(mask == (NS_STYLE_CONTAIN_STRICT | NS_STYLE_CONTAIN_ALL_BITS),
"contain: strict should imply contain: layout style paint");
val->SetIdent(eCSSKeyword_strict);
} else {
nsAutoString valueStr;
nsStyleUtil::AppendBitmaskCSSValue(eCSSProperty_contain,
mask, NS_STYLE_CONTAIN_LAYOUT,
NS_STYLE_CONTAIN_PAINT, valueStr);
val->SetString(valueStr);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPosition()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mPosition,
nsCSSProps::kPositionKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetClip()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleEffects* effects = StyleEffects();
if (effects->mClipFlags == NS_STYLE_CLIP_AUTO) {
val->SetIdent(eCSSKeyword_auto);
} else {
// create the cssvalues for the sides, stick them in the rect object
nsROCSSPrimitiveValue *topVal = new nsROCSSPrimitiveValue;
nsROCSSPrimitiveValue *rightVal = new nsROCSSPrimitiveValue;
nsROCSSPrimitiveValue *bottomVal = new nsROCSSPrimitiveValue;
nsROCSSPrimitiveValue *leftVal = new nsROCSSPrimitiveValue;
nsDOMCSSRect * domRect = new nsDOMCSSRect(topVal, rightVal,
bottomVal, leftVal);
if (effects->mClipFlags & NS_STYLE_CLIP_TOP_AUTO) {
topVal->SetIdent(eCSSKeyword_auto);
} else {
topVal->SetAppUnits(effects->mClip.y);
}
if (effects->mClipFlags & NS_STYLE_CLIP_RIGHT_AUTO) {
rightVal->SetIdent(eCSSKeyword_auto);
} else {
rightVal->SetAppUnits(effects->mClip.width + effects->mClip.x);
}
if (effects->mClipFlags & NS_STYLE_CLIP_BOTTOM_AUTO) {
bottomVal->SetIdent(eCSSKeyword_auto);
} else {
bottomVal->SetAppUnits(effects->mClip.height + effects->mClip.y);
}
if (effects->mClipFlags & NS_STYLE_CLIP_LEFT_AUTO) {
leftVal->SetIdent(eCSSKeyword_auto);
} else {
leftVal->SetAppUnits(effects->mClip.x);
}
val->SetRect(domRect);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWillChange()
{
const nsCOMArray<nsIAtom>& willChange = StyleDisplay()->mWillChange;
if (willChange.IsEmpty()) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_auto);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (const nsIAtom* ident : willChange) {
RefPtr<nsROCSSPrimitiveValue> property = new nsROCSSPrimitiveValue;
property->SetString(nsDependentAtomString(ident));
valueList->AppendCSSValue(property.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflow()
{
const nsStyleDisplay* display = StyleDisplay();
if (display->mOverflowX != display->mOverflowY) {
// No value to return. We can't express this combination of
// values as a shorthand.
return nullptr;
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(display->mOverflowX,
nsCSSProps::kOverflowKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowX()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mOverflowX,
nsCSSProps::kOverflowSubKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowY()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mOverflowY,
nsCSSProps::kOverflowSubKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetOverflowClipBox()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mOverflowClipBox,
nsCSSProps::kOverflowClipBoxKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetResize()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mResize,
nsCSSProps::kResizeKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPageBreakAfter()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleDisplay *display = StyleDisplay();
if (display->mBreakAfter) {
val->SetIdent(eCSSKeyword_always);
} else {
val->SetIdent(eCSSKeyword_auto);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPageBreakBefore()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleDisplay *display = StyleDisplay();
if (display->mBreakBefore) {
val->SetIdent(eCSSKeyword_always);
} else {
val->SetIdent(eCSSKeyword_auto);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPageBreakInside()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mBreakInside,
nsCSSProps::kPageBreakInsideKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTouchAction()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
int32_t intValue = StyleDisplay()->mTouchAction;
// None and Auto and Manipulation values aren't allowed
// to be in conjunction with other values.
// But there are all checks in CSSParserImpl::ParseTouchAction
nsAutoString valueStr;
nsStyleUtil::AppendBitmaskCSSValue(eCSSProperty_touch_action, intValue,
NS_STYLE_TOUCH_ACTION_NONE, NS_STYLE_TOUCH_ACTION_MANIPULATION,
valueStr);
val->SetString(valueStr);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetHeight()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
bool calcHeight = false;
if (mInnerFrame) {
calcHeight = true;
const nsStyleDisplay* displayData = StyleDisplay();
if (displayData->mDisplay == mozilla::StyleDisplay::Inline &&
!(mInnerFrame->IsFrameOfType(nsIFrame::eReplaced)) &&
// An outer SVG frame should behave the same as eReplaced in this case
!mInnerFrame->IsSVGOuterSVGFrame()) {
calcHeight = false;
}
}
if (calcHeight) {
AssertFlushedPendingReflows();
nsMargin adjustedValues = GetAdjustedValuesForBoxSizing();
val->SetAppUnits(mInnerFrame->GetContentRect().height +
adjustedValues.TopBottom());
} else {
const nsStylePosition *positionData = StylePosition();
nscoord minHeight =
StyleCoordToNSCoord(positionData->mMinHeight,
&nsComputedDOMStyle::GetCBContentHeight, 0, true);
nscoord maxHeight =
StyleCoordToNSCoord(positionData->mMaxHeight,
&nsComputedDOMStyle::GetCBContentHeight,
nscoord_MAX, true);
SetValueToCoord(val, positionData->mHeight, true, nullptr,
nsCSSProps::kWidthKTable, minHeight, maxHeight);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetWidth()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
bool calcWidth = false;
if (mInnerFrame) {
calcWidth = true;
const nsStyleDisplay *displayData = StyleDisplay();
if (displayData->mDisplay == mozilla::StyleDisplay::Inline &&
!(mInnerFrame->IsFrameOfType(nsIFrame::eReplaced)) &&
// An outer SVG frame should behave the same as eReplaced in this case
!mInnerFrame->IsSVGOuterSVGFrame()) {
calcWidth = false;
}
}
if (calcWidth) {
AssertFlushedPendingReflows();
nsMargin adjustedValues = GetAdjustedValuesForBoxSizing();
val->SetAppUnits(mInnerFrame->GetContentRect().width +
adjustedValues.LeftRight());
} else {
const nsStylePosition *positionData = StylePosition();
nscoord minWidth =
StyleCoordToNSCoord(positionData->mMinWidth,
&nsComputedDOMStyle::GetCBContentWidth, 0, true);
nscoord maxWidth =
StyleCoordToNSCoord(positionData->mMaxWidth,
&nsComputedDOMStyle::GetCBContentWidth,
nscoord_MAX, true);
SetValueToCoord(val, positionData->mWidth, true, nullptr,
nsCSSProps::kWidthKTable, minWidth, maxWidth);
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaxHeight()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StylePosition()->mMaxHeight, true,
nullptr, nsCSSProps::kWidthKTable);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaxWidth()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StylePosition()->mMaxWidth, true,
nullptr, nsCSSProps::kWidthKTable);
return val.forget();
}
bool
nsComputedDOMStyle::ShouldHonorMinSizeAutoInAxis(PhysicalAxis aAxis)
{
// A {flex,grid} item's min-{width|height} "auto" value gets special
// treatment in getComputedStyle().
// https://drafts.csswg.org/css-flexbox-1/#valdef-min-width-auto
// https://drafts.csswg.org/css-grid/#min-size-auto
// In most cases, "min-{width|height}: auto" is mapped to "0px", unless
// we're a flex item (and the min-size is in the flex container's main
// axis), or we're a grid item, AND we also have overflow:visible.
// Note: We only need to bother checking one "overflow" subproperty for
// "visible", because a non-"visible" value in either axis would force the
// other axis to also be non-"visible" as well.
if (mOuterFrame) {
nsIFrame* containerFrame = mOuterFrame->GetParent();
if (containerFrame &&
StyleDisplay()->mOverflowX == NS_STYLE_OVERFLOW_VISIBLE) {
if (containerFrame->IsFlexContainerFrame() &&
(static_cast<nsFlexContainerFrame*>(containerFrame)->IsHorizontal() ==
(aAxis == eAxisHorizontal))) {
return true;
}
if (containerFrame->IsGridContainerFrame()) {
return true;
}
}
}
return false;
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMinHeight()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsStyleCoord minHeight = StylePosition()->mMinHeight;
if (eStyleUnit_Auto == minHeight.GetUnit() &&
!ShouldHonorMinSizeAutoInAxis(eAxisVertical)) {
minHeight.SetCoordValue(0);
}
SetValueToCoord(val, minHeight, true, nullptr, nsCSSProps::kWidthKTable);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMinWidth()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsStyleCoord minWidth = StylePosition()->mMinWidth;
if (eStyleUnit_Auto == minWidth.GetUnit() &&
!ShouldHonorMinSizeAutoInAxis(eAxisHorizontal)) {
minWidth.SetCoordValue(0);
}
SetValueToCoord(val, minWidth, true, nullptr, nsCSSProps::kWidthKTable);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMixBlendMode()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleEffects()->mMixBlendMode,
nsCSSProps::kBlendModeKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetIsolation()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleDisplay()->mIsolation,
nsCSSProps::kIsolationKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetObjectFit()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StylePosition()->mObjectFit,
nsCSSProps::kObjectFitKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetObjectPosition()
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
SetValueToPosition(StylePosition()->mObjectPosition, valueList);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetLeft()
{
return GetOffsetWidthFor(eSideLeft);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetRight()
{
return GetOffsetWidthFor(eSideRight);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTop()
{
return GetOffsetWidthFor(eSideTop);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetOffsetWidthFor(mozilla::Side aSide)
{
const nsStyleDisplay* display = StyleDisplay();
AssertFlushedPendingReflows();
uint8_t position = display->mPosition;
if (!mOuterFrame) {
// GetRelativeOffset and GetAbsoluteOffset don't handle elements
// without frames in any sensible way. GetStaticOffset, however,
// is perfect for that case.
position = NS_STYLE_POSITION_STATIC;
}
switch (position) {
case NS_STYLE_POSITION_STATIC:
return GetStaticOffset(aSide);
case NS_STYLE_POSITION_RELATIVE:
return GetRelativeOffset(aSide);
case NS_STYLE_POSITION_STICKY:
return GetStickyOffset(aSide);
case NS_STYLE_POSITION_ABSOLUTE:
case NS_STYLE_POSITION_FIXED:
return GetAbsoluteOffset(aSide);
default:
NS_ERROR("Invalid position");
return nullptr;
}
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetAbsoluteOffset(mozilla::Side aSide)
{
MOZ_ASSERT(mOuterFrame, "need a frame, so we can call GetContainingBlock()");
nsIFrame* container = mOuterFrame->GetContainingBlock();
nsMargin margin = mOuterFrame->GetUsedMargin();
nsMargin border = container->GetUsedBorder();
nsMargin scrollbarSizes(0, 0, 0, 0);
nsRect rect = mOuterFrame->GetRect();
nsRect containerRect = container->GetRect();
if (container->IsViewportFrame()) {
// For absolutely positioned frames scrollbars are taken into
// account by virtue of getting a containing block that does
// _not_ include the scrollbars. For fixed positioned frames,
// the containing block is the viewport, which _does_ include
// scrollbars. We have to do some extra work.
// the first child in the default frame list is what we want
nsIFrame* scrollingChild = container->PrincipalChildList().FirstChild();
nsIScrollableFrame *scrollFrame = do_QueryFrame(scrollingChild);
if (scrollFrame) {
scrollbarSizes = scrollFrame->GetActualScrollbarSizes();
}
}
nscoord offset = 0;
switch (aSide) {
case eSideTop:
offset = rect.y - margin.top - border.top - scrollbarSizes.top;
break;
case eSideRight:
offset = containerRect.width - rect.width -
rect.x - margin.right - border.right - scrollbarSizes.right;
break;
case eSideBottom:
offset = containerRect.height - rect.height -
rect.y - margin.bottom - border.bottom - scrollbarSizes.bottom;
break;
case eSideLeft:
offset = rect.x - margin.left - border.left - scrollbarSizes.left;
break;
default:
NS_ERROR("Invalid side");
break;
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetAppUnits(offset);
return val.forget();
}
static_assert(eSideTop == 0 && eSideRight == 1 &&
eSideBottom == 2 && eSideLeft == 3,
"box side constants not as expected for NS_OPPOSITE_SIDE");
#define NS_OPPOSITE_SIDE(s_) mozilla::Side(((s_) + 2) & 3)
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetRelativeOffset(mozilla::Side aSide)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStylePosition* positionData = StylePosition();
int32_t sign = 1;
nsStyleCoord coord = positionData->mOffset.Get(aSide);
NS_ASSERTION(coord.GetUnit() == eStyleUnit_Coord ||
coord.GetUnit() == eStyleUnit_Percent ||
coord.GetUnit() == eStyleUnit_Auto ||
coord.IsCalcUnit(),
"Unexpected unit");
if (coord.GetUnit() == eStyleUnit_Auto) {
coord = positionData->mOffset.Get(NS_OPPOSITE_SIDE(aSide));
sign = -1;
}
PercentageBaseGetter baseGetter;
if (aSide == eSideLeft || aSide == eSideRight) {
baseGetter = &nsComputedDOMStyle::GetCBContentWidth;
} else {
baseGetter = &nsComputedDOMStyle::GetCBContentHeight;
}
val->SetAppUnits(sign * StyleCoordToNSCoord(coord, baseGetter, 0, false));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetStickyOffset(mozilla::Side aSide)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStylePosition* positionData = StylePosition();
nsStyleCoord coord = positionData->mOffset.Get(aSide);
NS_ASSERTION(coord.GetUnit() == eStyleUnit_Coord ||
coord.GetUnit() == eStyleUnit_Percent ||
coord.GetUnit() == eStyleUnit_Auto ||
coord.IsCalcUnit(),
"Unexpected unit");
if (coord.GetUnit() == eStyleUnit_Auto) {
val->SetIdent(eCSSKeyword_auto);
return val.forget();
}
PercentageBaseGetter baseGetter;
if (aSide == eSideLeft || aSide == eSideRight) {
baseGetter = &nsComputedDOMStyle::GetScrollFrameContentWidth;
} else {
baseGetter = &nsComputedDOMStyle::GetScrollFrameContentHeight;
}
val->SetAppUnits(StyleCoordToNSCoord(coord, baseGetter, 0, false));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetStaticOffset(mozilla::Side aSide)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StylePosition()->mOffset.Get(aSide), false);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetPaddingWidthFor(mozilla::Side aSide)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
if (!mInnerFrame) {
SetValueToCoord(val, StylePadding()->mPadding.Get(aSide), true);
} else {
AssertFlushedPendingReflows();
val->SetAppUnits(mInnerFrame->GetUsedPadding().Side(aSide));
}
return val.forget();
}
bool
nsComputedDOMStyle::GetLineHeightCoord(nscoord& aCoord)
{
AssertFlushedPendingReflows();
nscoord blockHeight = NS_AUTOHEIGHT;
if (StyleText()->mLineHeight.GetUnit() == eStyleUnit_Enumerated) {
if (!mInnerFrame)
return false;
if (nsLayoutUtils::IsNonWrapperBlock(mInnerFrame)) {
blockHeight = mInnerFrame->GetContentRect().height;
} else {
GetCBContentHeight(blockHeight);
}
}
// lie about font size inflation since we lie about font size (since
// the inflation only applies to text)
aCoord = ReflowInput::CalcLineHeight(mContent, mStyleContext,
blockHeight, 1.0f);
// CalcLineHeight uses font->mFont.size, but we want to use
// font->mSize as the font size. Adjust for that. Also adjust for
// the text zoom, if any.
const nsStyleFont* font = StyleFont();
float fCoord = float(aCoord);
if (font->mAllowZoom) {
fCoord /= mPresShell->GetPresContext()->EffectiveTextZoom();
}
if (font->mFont.size != font->mSize) {
fCoord = fCoord * (float(font->mSize) / float(font->mFont.size));
}
aCoord = NSToCoordRound(fCoord);
return true;
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetBorderColorsFor(mozilla::Side aSide)
{
const nsStyleBorder *border = StyleBorder();
if (border->mBorderColors) {
nsBorderColors* borderColors = border->mBorderColors[aSide];
if (borderColors) {
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
do {
RefPtr<nsROCSSPrimitiveValue> primitive = new nsROCSSPrimitiveValue;
SetToRGBAColor(primitive, borderColors->mColor);
valueList->AppendCSSValue(primitive.forget());
borderColors = borderColors->mNext;
} while (borderColors);
return valueList.forget();
}
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetBorderWidthFor(mozilla::Side aSide)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nscoord width;
if (mInnerFrame) {
AssertFlushedPendingReflows();
width = mInnerFrame->GetUsedBorder().Side(aSide);
} else {
width = StyleBorder()->GetComputedBorderWidth(aSide);
}
val->SetAppUnits(width);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetBorderColorFor(mozilla::Side aSide)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueFromComplexColor(val, StyleBorder()->mBorderColor[aSide]);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetMarginWidthFor(mozilla::Side aSide)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
if (!mInnerFrame) {
SetValueToCoord(val, StyleMargin()->mMargin.Get(aSide), false);
} else {
AssertFlushedPendingReflows();
// For tables, GetUsedMargin always returns an empty margin, so we
// should read the margin from the table wrapper frame instead.
val->SetAppUnits(mOuterFrame->GetUsedMargin().Side(aSide));
NS_ASSERTION(mOuterFrame == mInnerFrame ||
mInnerFrame->GetUsedMargin() == nsMargin(0, 0, 0, 0),
"Inner tables must have zero margins");
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetBorderStyleFor(mozilla::Side aSide)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleBorder()->GetBorderStyle(aSide),
nsCSSProps::kBorderStyleKTable));
return val.forget();
}
void
nsComputedDOMStyle::SetValueToCoord(nsROCSSPrimitiveValue* aValue,
const nsStyleCoord& aCoord,
bool aClampNegativeCalc,
PercentageBaseGetter aPercentageBaseGetter,
const KTableEntry aTable[],
nscoord aMinAppUnits,
nscoord aMaxAppUnits)
{
NS_PRECONDITION(aValue, "Must have a value to work with");
switch (aCoord.GetUnit()) {
case eStyleUnit_Normal:
aValue->SetIdent(eCSSKeyword_normal);
break;
case eStyleUnit_Auto:
aValue->SetIdent(eCSSKeyword_auto);
break;
case eStyleUnit_Percent:
{
nscoord percentageBase;
if (aPercentageBaseGetter &&
(this->*aPercentageBaseGetter)(percentageBase)) {
nscoord val = NSCoordSaturatingMultiply(percentageBase,
aCoord.GetPercentValue());
aValue->SetAppUnits(std::max(aMinAppUnits, std::min(val, aMaxAppUnits)));
} else {
aValue->SetPercent(aCoord.GetPercentValue());
}
}
break;
case eStyleUnit_Factor:
aValue->SetNumber(aCoord.GetFactorValue());
break;
case eStyleUnit_Coord:
{
nscoord val = aCoord.GetCoordValue();
aValue->SetAppUnits(std::max(aMinAppUnits, std::min(val, aMaxAppUnits)));
}
break;
case eStyleUnit_Integer:
aValue->SetNumber(aCoord.GetIntValue());
break;
case eStyleUnit_Enumerated:
NS_ASSERTION(aTable, "Must have table to handle this case");
aValue->SetIdent(nsCSSProps::ValueToKeywordEnum(aCoord.GetIntValue(),
aTable));
break;
case eStyleUnit_None:
aValue->SetIdent(eCSSKeyword_none);
break;
case eStyleUnit_Calc:
nscoord percentageBase;
if (!aCoord.CalcHasPercent()) {
nscoord val = nsRuleNode::ComputeCoordPercentCalc(aCoord, 0);
if (aClampNegativeCalc && val < 0) {
MOZ_ASSERT(aCoord.IsCalcUnit(),
"parser should have rejected value");
val = 0;
}
aValue->SetAppUnits(std::max(aMinAppUnits, std::min(val, aMaxAppUnits)));
} else if (aPercentageBaseGetter &&
(this->*aPercentageBaseGetter)(percentageBase)) {
nscoord val =
nsRuleNode::ComputeCoordPercentCalc(aCoord, percentageBase);
if (aClampNegativeCalc && val < 0) {
MOZ_ASSERT(aCoord.IsCalcUnit(),
"parser should have rejected value");
val = 0;
}
aValue->SetAppUnits(std::max(aMinAppUnits, std::min(val, aMaxAppUnits)));
} else {
nsStyleCoord::Calc *calc = aCoord.GetCalcValue();
SetValueToCalc(calc, aValue);
}
break;
case eStyleUnit_Degree:
aValue->SetDegree(aCoord.GetAngleValue());
break;
case eStyleUnit_Grad:
aValue->SetGrad(aCoord.GetAngleValue());
break;
case eStyleUnit_Radian:
aValue->SetRadian(aCoord.GetAngleValue());
break;
case eStyleUnit_Turn:
aValue->SetTurn(aCoord.GetAngleValue());
break;
case eStyleUnit_FlexFraction: {
nsAutoString tmpStr;
nsStyleUtil::AppendCSSNumber(aCoord.GetFlexFractionValue(), tmpStr);
tmpStr.AppendLiteral("fr");
aValue->SetString(tmpStr);
break;
}
default:
NS_ERROR("Can't handle this unit");
break;
}
}
nscoord
nsComputedDOMStyle::StyleCoordToNSCoord(const nsStyleCoord& aCoord,
PercentageBaseGetter aPercentageBaseGetter,
nscoord aDefaultValue,
bool aClampNegativeCalc)
{
NS_PRECONDITION(aPercentageBaseGetter, "Must have a percentage base getter");
if (aCoord.GetUnit() == eStyleUnit_Coord) {
return aCoord.GetCoordValue();
}
if (aCoord.GetUnit() == eStyleUnit_Percent || aCoord.IsCalcUnit()) {
nscoord percentageBase;
if ((this->*aPercentageBaseGetter)(percentageBase)) {
nscoord result =
nsRuleNode::ComputeCoordPercentCalc(aCoord, percentageBase);
if (aClampNegativeCalc && result < 0) {
// It's expected that we can get a negative value here with calc().
// We can also get a negative value with a percentage value if
// percentageBase is negative; this isn't expected, but can happen
// when large length values overflow.
NS_WARNING_ASSERTION(
percentageBase >= 0,
"percentage base value overflowed to become negative for a property "
"that disallows negative values");
MOZ_ASSERT(aCoord.IsCalcUnit() ||
(aCoord.HasPercent() && percentageBase < 0),
"parser should have rejected value");
result = 0;
}
return result;
}
// Fall through to returning aDefaultValue if we have no percentage base.
}
return aDefaultValue;
}
bool
nsComputedDOMStyle::GetCBContentWidth(nscoord& aWidth)
{
if (!mOuterFrame) {
return false;
}
AssertFlushedPendingReflows();
nsIFrame* container = mOuterFrame->GetContainingBlock();
aWidth = container->GetContentRect().width;
return true;
}
bool
nsComputedDOMStyle::GetCBContentHeight(nscoord& aHeight)
{
if (!mOuterFrame) {
return false;
}
AssertFlushedPendingReflows();
nsIFrame* container = mOuterFrame->GetContainingBlock();
aHeight = container->GetContentRect().height;
return true;
}
bool
nsComputedDOMStyle::GetScrollFrameContentWidth(nscoord& aWidth)
{
if (!mOuterFrame) {
return false;
}
AssertFlushedPendingReflows();
nsIScrollableFrame* scrollableFrame =
nsLayoutUtils::GetNearestScrollableFrame(mOuterFrame->GetParent(),
nsLayoutUtils::SCROLLABLE_SAME_DOC |
nsLayoutUtils::SCROLLABLE_INCLUDE_HIDDEN);
if (!scrollableFrame) {
return false;
}
aWidth =
scrollableFrame->GetScrolledFrame()->GetContentRectRelativeToSelf().width;
return true;
}
bool
nsComputedDOMStyle::GetScrollFrameContentHeight(nscoord& aHeight)
{
if (!mOuterFrame) {
return false;
}
AssertFlushedPendingReflows();
nsIScrollableFrame* scrollableFrame =
nsLayoutUtils::GetNearestScrollableFrame(mOuterFrame->GetParent(),
nsLayoutUtils::SCROLLABLE_SAME_DOC |
nsLayoutUtils::SCROLLABLE_INCLUDE_HIDDEN);
if (!scrollableFrame) {
return false;
}
aHeight =
scrollableFrame->GetScrolledFrame()->GetContentRectRelativeToSelf().height;
return true;
}
bool
nsComputedDOMStyle::GetFrameBorderRectWidth(nscoord& aWidth)
{
if (!mInnerFrame) {
return false;
}
AssertFlushedPendingReflows();
aWidth = mInnerFrame->GetSize().width;
return true;
}
bool
nsComputedDOMStyle::GetFrameBorderRectHeight(nscoord& aHeight)
{
if (!mInnerFrame) {
return false;
}
AssertFlushedPendingReflows();
aHeight = mInnerFrame->GetSize().height;
return true;
}
bool
nsComputedDOMStyle::GetFrameBoundsWidthForTransform(nscoord& aWidth)
{
// We need a frame to work with.
if (!mInnerFrame) {
return false;
}
AssertFlushedPendingReflows();
aWidth = nsStyleTransformMatrix::TransformReferenceBox(mInnerFrame).Width();
return true;
}
bool
nsComputedDOMStyle::GetFrameBoundsHeightForTransform(nscoord& aHeight)
{
// We need a frame to work with.
if (!mInnerFrame) {
return false;
}
AssertFlushedPendingReflows();
aHeight = nsStyleTransformMatrix::TransformReferenceBox(mInnerFrame).Height();
return true;
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetFallbackValue(const nsStyleSVGPaint* aPaint)
{
RefPtr<nsROCSSPrimitiveValue> fallback = new nsROCSSPrimitiveValue;
if (aPaint->GetFallbackType() == eStyleSVGFallbackType_Color) {
SetToRGBAColor(fallback, aPaint->GetFallbackColor());
} else {
fallback->SetIdent(eCSSKeyword_none);
}
return fallback.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetSVGPaintFor(bool aFill)
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
const nsStyleSVG* svg = StyleSVG();
const nsStyleSVGPaint* paint = aFill ? &svg->mFill : &svg->mStroke;
nsAutoString paintString;
switch (paint->Type()) {
case eStyleSVGPaintType_None:
val->SetIdent(eCSSKeyword_none);
break;
case eStyleSVGPaintType_Color:
SetToRGBAColor(val, paint->GetColor());
break;
case eStyleSVGPaintType_Server: {
SetValueToURLValue(paint->GetPaintServer(), val);
if (paint->GetFallbackType() != eStyleSVGFallbackType_NotSet) {
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
RefPtr<CSSValue> fallback = GetFallbackValue(paint);
valueList->AppendCSSValue(val.forget());
valueList->AppendCSSValue(fallback.forget());
return valueList.forget();
}
break;
}
case eStyleSVGPaintType_ContextFill:
case eStyleSVGPaintType_ContextStroke: {
val->SetIdent(paint->Type() == eStyleSVGPaintType_ContextFill ?
eCSSKeyword_context_fill : eCSSKeyword_context_stroke);
if (paint->GetFallbackType() != eStyleSVGFallbackType_NotSet) {
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
RefPtr<CSSValue> fallback = GetFallbackValue(paint);
valueList->AppendCSSValue(val.forget());
valueList->AppendCSSValue(fallback.forget());
return valueList.forget();
}
break;
}
}
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFill()
{
return GetSVGPaintFor(true);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStroke()
{
return GetSVGPaintFor(false);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMarkerEnd()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToURLValue(StyleSVG()->mMarkerEnd, val);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMarkerMid()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToURLValue(StyleSVG()->mMarkerMid, val);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMarkerStart()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToURLValue(StyleSVG()->mMarkerStart, val);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStrokeDasharray()
{
const nsStyleSVG* svg = StyleSVG();
if (svg->mStrokeDasharray.IsEmpty()) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (uint32_t i = 0; i < svg->mStrokeDasharray.Length(); i++) {
RefPtr<nsROCSSPrimitiveValue> dash = new nsROCSSPrimitiveValue;
SetValueToCoord(dash, svg->mStrokeDasharray[i], true);
valueList->AppendCSSValue(dash.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStrokeDashoffset()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StyleSVG()->mStrokeDashoffset, false);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStrokeWidth()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToCoord(val, StyleSVG()->mStrokeWidth, true);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetVectorEffect()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(StyleSVGReset()->mVectorEffect,
nsCSSProps::kVectorEffectKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFillOpacity()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StyleSVG()->mFillOpacity);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFloodOpacity()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StyleSVGReset()->mFloodOpacity);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStopOpacity()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StyleSVGReset()->mStopOpacity);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStrokeMiterlimit()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StyleSVG()->mStrokeMiterlimit);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStrokeOpacity()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetNumber(StyleSVG()->mStrokeOpacity);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetClipRule()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(
StyleSVG()->mClipRule, nsCSSProps::kFillRuleKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFillRule()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(
StyleSVG()->mFillRule, nsCSSProps::kFillRuleKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStrokeLinecap()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleSVG()->mStrokeLinecap,
nsCSSProps::kStrokeLinecapKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStrokeLinejoin()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleSVG()->mStrokeLinejoin,
nsCSSProps::kStrokeLinejoinKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextAnchor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleSVG()->mTextAnchor,
nsCSSProps::kTextAnchorKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColorInterpolation()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleSVG()->mColorInterpolation,
nsCSSProps::kColorInterpolationKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetColorInterpolationFilters()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleSVG()->mColorInterpolationFilters,
nsCSSProps::kColorInterpolationKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetDominantBaseline()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleSVGReset()->mDominantBaseline,
nsCSSProps::kDominantBaselineKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetImageRendering()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleVisibility()->mImageRendering,
nsCSSProps::kImageRenderingKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetShapeRendering()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleSVG()->mShapeRendering,
nsCSSProps::kShapeRenderingKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTextRendering()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleText()->mTextRendering,
nsCSSProps::kTextRenderingKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFloodColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetToRGBAColor(val, StyleSVGReset()->mFloodColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetLightingColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetToRGBAColor(val, StyleSVGReset()->mLightingColor);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetStopColor()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetToRGBAColor(val, StyleSVGReset()->mStopColor);
return val.forget();
}
void
nsComputedDOMStyle::BoxValuesToString(nsAString& aString,
const nsTArray<nsStyleCoord>& aBoxValues)
{
MOZ_ASSERT(aBoxValues.Length() == 4, "wrong number of box values");
nsAutoString value1, value2, value3, value4;
SetCssTextToCoord(value1, aBoxValues[0]);
SetCssTextToCoord(value2, aBoxValues[1]);
SetCssTextToCoord(value3, aBoxValues[2]);
SetCssTextToCoord(value4, aBoxValues[3]);
// nsROCSSPrimitiveValue do not have binary comparison operators.
// Compare string results instead.
aString.Append(value1);
if (value1 != value2 || value1 != value3 || value1 != value4) {
aString.Append(' ');
aString.Append(value2);
if (value1 != value3 || value2 != value4) {
aString.Append(' ');
aString.Append(value3);
if (value2 != value4) {
aString.Append(' ');
aString.Append(value4);
}
}
}
}
void
nsComputedDOMStyle::BasicShapeRadiiToString(nsAString& aCssText,
const nsStyleCorners& aCorners)
{
nsTArray<nsStyleCoord> horizontal, vertical;
nsAutoString horizontalString, verticalString;
NS_FOR_CSS_FULL_CORNERS(corner) {
horizontal.AppendElement(
aCorners.Get(FullToHalfCorner(corner, false)));
vertical.AppendElement(
aCorners.Get(FullToHalfCorner(corner, true)));
}
BoxValuesToString(horizontalString, horizontal);
BoxValuesToString(verticalString, vertical);
aCssText.Append(horizontalString);
if (horizontalString == verticalString) {
return;
}
aCssText.AppendLiteral(" / ");
aCssText.Append(verticalString);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::CreatePrimitiveValueForBasicShape(
const StyleBasicShape* aStyleBasicShape)
{
MOZ_ASSERT(aStyleBasicShape, "Expect a valid basic shape pointer!");
StyleBasicShapeType type = aStyleBasicShape->GetShapeType();
// Shape function name and opening parenthesis.
nsAutoString shapeFunctionString;
AppendASCIItoUTF16(nsCSSKeywords::GetStringValue(
aStyleBasicShape->GetShapeTypeName()),
shapeFunctionString);
shapeFunctionString.Append('(');
switch (type) {
case StyleBasicShapeType::Polygon: {
bool hasEvenOdd = aStyleBasicShape->GetFillRule() ==
StyleFillRule::Evenodd;
if (hasEvenOdd) {
shapeFunctionString.AppendLiteral("evenodd");
}
for (size_t i = 0;
i < aStyleBasicShape->Coordinates().Length(); i += 2) {
nsAutoString coordString;
if (i > 0 || hasEvenOdd) {
shapeFunctionString.AppendLiteral(", ");
}
SetCssTextToCoord(coordString,
aStyleBasicShape->Coordinates()[i]);
shapeFunctionString.Append(coordString);
shapeFunctionString.Append(' ');
SetCssTextToCoord(coordString,
aStyleBasicShape->Coordinates()[i + 1]);
shapeFunctionString.Append(coordString);
}
break;
}
case StyleBasicShapeType::Circle:
case StyleBasicShapeType::Ellipse: {
const nsTArray<nsStyleCoord>& radii = aStyleBasicShape->Coordinates();
MOZ_ASSERT(radii.Length() ==
(type == StyleBasicShapeType::Circle ? 1 : 2),
"wrong number of radii");
for (size_t i = 0; i < radii.Length(); ++i) {
nsAutoString radius;
RefPtr<nsROCSSPrimitiveValue> value = new nsROCSSPrimitiveValue;
bool clampNegativeCalc = true;
SetValueToCoord(value, radii[i], clampNegativeCalc, nullptr,
nsCSSProps::kShapeRadiusKTable);
value->GetCssText(radius);
shapeFunctionString.Append(radius);
shapeFunctionString.Append(' ');
}
shapeFunctionString.AppendLiteral("at ");
RefPtr<nsDOMCSSValueList> position = GetROCSSValueList(false);
nsAutoString positionString;
SetValueToPosition(aStyleBasicShape->GetPosition(), position);
position->GetCssText(positionString);
shapeFunctionString.Append(positionString);
break;
}
case StyleBasicShapeType::Inset: {
BoxValuesToString(shapeFunctionString, aStyleBasicShape->Coordinates());
if (aStyleBasicShape->HasRadius()) {
shapeFunctionString.AppendLiteral(" round ");
nsAutoString radiiString;
BasicShapeRadiiToString(radiiString, aStyleBasicShape->GetRadius());
shapeFunctionString.Append(radiiString);
}
break;
}
default:
NS_NOTREACHED("unexpected type");
}
shapeFunctionString.Append(')');
RefPtr<nsROCSSPrimitiveValue> functionValue = new nsROCSSPrimitiveValue;
functionValue->SetString(shapeFunctionString);
return functionValue.forget();
}
template<typename ReferenceBox>
already_AddRefed<CSSValue>
nsComputedDOMStyle::CreatePrimitiveValueForShapeSource(
const StyleBasicShape* aStyleBasicShape,
ReferenceBox aReferenceBox,
const KTableEntry aBoxKeywordTable[])
{
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
if (aStyleBasicShape) {
valueList->AppendCSSValue(
CreatePrimitiveValueForBasicShape(aStyleBasicShape));
}
if (aReferenceBox == ReferenceBox::NoBox) {
return valueList.forget();
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(nsCSSProps::ValueToKeywordEnum(aReferenceBox, aBoxKeywordTable));
valueList->AppendCSSValue(val.forget());
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::GetShapeSource(
const StyleShapeSource& aShapeSource,
const KTableEntry aBoxKeywordTable[])
{
switch (aShapeSource.GetType()) {
case StyleShapeSourceType::Shape:
return CreatePrimitiveValueForShapeSource(aShapeSource.GetBasicShape(),
aShapeSource.GetReferenceBox(),
aBoxKeywordTable);
case StyleShapeSourceType::Box:
return CreatePrimitiveValueForShapeSource(nullptr,
aShapeSource.GetReferenceBox(),
aBoxKeywordTable);
case StyleShapeSourceType::URL: {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToURLValue(aShapeSource.GetURL(), val);
return val.forget();
}
case StyleShapeSourceType::None: {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
default:
NS_NOTREACHED("unexpected type");
}
return nullptr;
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetClipPath()
{
return GetShapeSource(StyleSVGReset()->mClipPath,
nsCSSProps::kClipPathGeometryBoxKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetShapeOutside()
{
return GetShapeSource(StyleDisplay()->mShapeOutside,
nsCSSProps::kShapeOutsideShapeBoxKTable);
}
void
nsComputedDOMStyle::SetCssTextToCoord(nsAString& aCssText,
const nsStyleCoord& aCoord)
{
RefPtr<nsROCSSPrimitiveValue> value = new nsROCSSPrimitiveValue;
bool clampNegativeCalc = true;
SetValueToCoord(value, aCoord, clampNegativeCalc);
value->GetCssText(aCssText);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::CreatePrimitiveValueForStyleFilter(
const nsStyleFilter& aStyleFilter)
{
RefPtr<nsROCSSPrimitiveValue> value = new nsROCSSPrimitiveValue;
// Handle url().
if (aStyleFilter.GetType() == NS_STYLE_FILTER_URL) {
MOZ_ASSERT(aStyleFilter.GetURL() &&
aStyleFilter.GetURL()->GetURI());
SetValueToURLValue(aStyleFilter.GetURL(), value);
return value.forget();
}
// Filter function name and opening parenthesis.
nsAutoString filterFunctionString;
AppendASCIItoUTF16(
nsCSSProps::ValueToKeyword(aStyleFilter.GetType(),
nsCSSProps::kFilterFunctionKTable),
filterFunctionString);
filterFunctionString.Append('(');
nsAutoString argumentString;
if (aStyleFilter.GetType() == NS_STYLE_FILTER_DROP_SHADOW) {
// Handle drop-shadow()
RefPtr<CSSValue> shadowValue =
GetCSSShadowArray(aStyleFilter.GetDropShadow(),
StyleColor()->mColor,
false);
ErrorResult dummy;
shadowValue->GetCssText(argumentString, dummy);
} else {
// Filter function argument.
SetCssTextToCoord(argumentString, aStyleFilter.GetFilterParameter());
}
filterFunctionString.Append(argumentString);
// Filter function closing parenthesis.
filterFunctionString.Append(')');
value->SetString(filterFunctionString);
return value.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetFilter()
{
const nsTArray<nsStyleFilter>& filters = StyleEffects()->mFilters;
if (filters.IsEmpty()) {
RefPtr<nsROCSSPrimitiveValue> value = new nsROCSSPrimitiveValue;
value->SetIdent(eCSSKeyword_none);
return value.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(false);
for(uint32_t i = 0; i < filters.Length(); i++) {
RefPtr<CSSValue> value = CreatePrimitiveValueForStyleFilter(filters[i]);
valueList->AppendCSSValue(value.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMask()
{
const nsStyleSVGReset* svg = StyleSVGReset();
const nsStyleImageLayers::Layer& firstLayer = svg->mMask.mLayers[0];
// Mask is now a shorthand, but it used to be a longhand, so that we
// need to support computed style for the cases where it used to be
// a longhand.
if (svg->mMask.mImageCount > 1 ||
firstLayer.mClip != StyleGeometryBox::BorderBox ||
firstLayer.mOrigin != StyleGeometryBox::BorderBox ||
firstLayer.mComposite != NS_STYLE_MASK_COMPOSITE_ADD ||
firstLayer.mMaskMode != NS_STYLE_MASK_MODE_MATCH_SOURCE ||
!nsStyleImageLayers::IsInitialPositionForLayerType(
firstLayer.mPosition, nsStyleImageLayers::LayerType::Mask) ||
!firstLayer.mRepeat.IsInitialValue() ||
!firstLayer.mSize.IsInitialValue() ||
!(firstLayer.mImage.GetType() == eStyleImageType_Null ||
firstLayer.mImage.GetType() == eStyleImageType_Image ||
firstLayer.mImage.GetType() == eStyleImageType_URL)) {
return nullptr;
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
SetValueToURLValue(firstLayer.mImage.GetURLValue(), val);
return val.forget();
}
#ifdef MOZ_ENABLE_MASK_AS_SHORTHAND
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskClip()
{
return GetBackgroundList(&nsStyleImageLayers::Layer::mClip,
&nsStyleImageLayers::mClipCount,
StyleSVGReset()->mMask,
nsCSSProps::kMaskClipKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskComposite()
{
return GetBackgroundList(&nsStyleImageLayers::Layer::mComposite,
&nsStyleImageLayers::mCompositeCount,
StyleSVGReset()->mMask,
nsCSSProps::kImageLayerCompositeKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskImage()
{
const nsStyleImageLayers& layers = StyleSVGReset()->mMask;
return DoGetImageLayerImage(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskMode()
{
return GetBackgroundList(&nsStyleImageLayers::Layer::mMaskMode,
&nsStyleImageLayers::mMaskModeCount,
StyleSVGReset()->mMask,
nsCSSProps::kImageLayerModeKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskOrigin()
{
return GetBackgroundList(&nsStyleImageLayers::Layer::mOrigin,
&nsStyleImageLayers::mOriginCount,
StyleSVGReset()->mMask,
nsCSSProps::kMaskOriginKTable);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskPosition()
{
const nsStyleImageLayers& layers = StyleSVGReset()->mMask;
return DoGetImageLayerPosition(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskPositionX()
{
const nsStyleImageLayers& layers = StyleSVGReset()->mMask;
return DoGetImageLayerPositionX(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskPositionY()
{
const nsStyleImageLayers& layers = StyleSVGReset()->mMask;
return DoGetImageLayerPositionY(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskRepeat()
{
const nsStyleImageLayers& layers = StyleSVGReset()->mMask;
return DoGetImageLayerRepeat(layers);
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskSize()
{
const nsStyleImageLayers& layers = StyleSVGReset()->mMask;
return DoGetImageLayerSize(layers);
}
#endif
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetMaskType()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(
nsCSSProps::ValueToKeywordEnum(StyleSVGReset()->mMaskType,
nsCSSProps::kMaskTypeKTable));
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetContextProperties()
{
const nsTArray<nsCOMPtr<nsIAtom>>& contextProps = StyleSVG()->mContextProps;
if (contextProps.IsEmpty()) {
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetIdent(eCSSKeyword_none);
return val.forget();
}
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
for (const nsIAtom* ident : contextProps) {
RefPtr<nsROCSSPrimitiveValue> property = new nsROCSSPrimitiveValue;
property->SetString(nsDependentAtomString(ident));
valueList->AppendCSSValue(property.forget());
}
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetPaintOrder()
{
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
nsAutoString string;
uint8_t paintOrder = StyleSVG()->mPaintOrder;
nsStyleUtil::AppendPaintOrderValue(paintOrder, string);
val->SetString(string);
return val.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTransitionDelay()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mTransitionDelayCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleTransition *transition = &display->mTransitions[i];
RefPtr<nsROCSSPrimitiveValue> delay = new nsROCSSPrimitiveValue;
delay->SetTime((float)transition->GetDelay() / (float)PR_MSEC_PER_SEC);
valueList->AppendCSSValue(delay.forget());
} while (++i < display->mTransitionDelayCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTransitionDuration()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mTransitionDurationCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleTransition *transition = &display->mTransitions[i];
RefPtr<nsROCSSPrimitiveValue> duration = new nsROCSSPrimitiveValue;
duration->SetTime((float)transition->GetDuration() / (float)PR_MSEC_PER_SEC);
valueList->AppendCSSValue(duration.forget());
} while (++i < display->mTransitionDurationCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTransitionProperty()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mTransitionPropertyCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleTransition *transition = &display->mTransitions[i];
RefPtr<nsROCSSPrimitiveValue> property = new nsROCSSPrimitiveValue;
nsCSSPropertyID cssprop = transition->GetProperty();
if (cssprop == eCSSPropertyExtra_all_properties)
property->SetIdent(eCSSKeyword_all);
else if (cssprop == eCSSPropertyExtra_no_properties)
property->SetIdent(eCSSKeyword_none);
else if (cssprop == eCSSProperty_UNKNOWN ||
cssprop == eCSSPropertyExtra_variable)
{
nsAutoString escaped;
nsStyleUtil::AppendEscapedCSSIdent(
nsDependentAtomString(transition->GetUnknownProperty()), escaped);
property->SetString(escaped); // really want SetIdent
}
else
property->SetString(nsCSSProps::GetStringValue(cssprop));
valueList->AppendCSSValue(property.forget());
} while (++i < display->mTransitionPropertyCount);
return valueList.forget();
}
void
nsComputedDOMStyle::AppendTimingFunction(nsDOMCSSValueList *aValueList,
const nsTimingFunction& aTimingFunction)
{
RefPtr<nsROCSSPrimitiveValue> timingFunction = new nsROCSSPrimitiveValue;
nsAutoString tmp;
switch (aTimingFunction.mType) {
case nsTimingFunction::Type::CubicBezier:
nsStyleUtil::AppendCubicBezierTimingFunction(aTimingFunction.mFunc.mX1,
aTimingFunction.mFunc.mY1,
aTimingFunction.mFunc.mX2,
aTimingFunction.mFunc.mY2,
tmp);
break;
case nsTimingFunction::Type::StepStart:
case nsTimingFunction::Type::StepEnd:
nsStyleUtil::AppendStepsTimingFunction(aTimingFunction.mType,
aTimingFunction.mStepsOrFrames,
tmp);
break;
case nsTimingFunction::Type::Frames:
nsStyleUtil::AppendFramesTimingFunction(aTimingFunction.mStepsOrFrames,
tmp);
break;
default:
nsStyleUtil::AppendCubicBezierKeywordTimingFunction(aTimingFunction.mType,
tmp);
break;
}
timingFunction->SetString(tmp);
aValueList->AppendCSSValue(timingFunction.forget());
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetTransitionTimingFunction()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mTransitionTimingFunctionCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
AppendTimingFunction(valueList,
display->mTransitions[i].GetTimingFunction());
} while (++i < display->mTransitionTimingFunctionCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAnimationName()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mAnimationNameCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleAnimation *animation = &display->mAnimations[i];
RefPtr<nsROCSSPrimitiveValue> property = new nsROCSSPrimitiveValue;
const nsString& name = animation->GetName();
if (name.IsEmpty()) {
property->SetIdent(eCSSKeyword_none);
} else {
nsAutoString escaped;
nsStyleUtil::AppendEscapedCSSIdent(animation->GetName(), escaped);
property->SetString(escaped); // really want SetIdent
}
valueList->AppendCSSValue(property.forget());
} while (++i < display->mAnimationNameCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAnimationDelay()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mAnimationDelayCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleAnimation *animation = &display->mAnimations[i];
RefPtr<nsROCSSPrimitiveValue> delay = new nsROCSSPrimitiveValue;
delay->SetTime((float)animation->GetDelay() / (float)PR_MSEC_PER_SEC);
valueList->AppendCSSValue(delay.forget());
} while (++i < display->mAnimationDelayCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAnimationDuration()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mAnimationDurationCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleAnimation *animation = &display->mAnimations[i];
RefPtr<nsROCSSPrimitiveValue> duration = new nsROCSSPrimitiveValue;
duration->SetTime((float)animation->GetDuration() / (float)PR_MSEC_PER_SEC);
valueList->AppendCSSValue(duration.forget());
} while (++i < display->mAnimationDurationCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAnimationTimingFunction()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mAnimationTimingFunctionCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
AppendTimingFunction(valueList,
display->mAnimations[i].GetTimingFunction());
} while (++i < display->mAnimationTimingFunctionCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAnimationDirection()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mAnimationDirectionCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleAnimation *animation = &display->mAnimations[i];
RefPtr<nsROCSSPrimitiveValue> direction = new nsROCSSPrimitiveValue;
direction->SetIdent(
nsCSSProps::ValueToKeywordEnum(
static_cast<int32_t>(animation->GetDirection()),
nsCSSProps::kAnimationDirectionKTable));
valueList->AppendCSSValue(direction.forget());
} while (++i < display->mAnimationDirectionCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAnimationFillMode()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mAnimationFillModeCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleAnimation *animation = &display->mAnimations[i];
RefPtr<nsROCSSPrimitiveValue> fillMode = new nsROCSSPrimitiveValue;
fillMode->SetIdent(
nsCSSProps::ValueToKeywordEnum(
static_cast<int32_t>(animation->GetFillMode()),
nsCSSProps::kAnimationFillModeKTable));
valueList->AppendCSSValue(fillMode.forget());
} while (++i < display->mAnimationFillModeCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAnimationIterationCount()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mAnimationIterationCountCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleAnimation *animation = &display->mAnimations[i];
RefPtr<nsROCSSPrimitiveValue> iterationCount = new nsROCSSPrimitiveValue;
float f = animation->GetIterationCount();
/* Need a nasty hack here to work around an optimizer bug in gcc
4.2 on Mac, which somehow gets confused when directly comparing
a float to the return value of NS_IEEEPositiveInfinity when
building 32-bit builds. */
#ifdef XP_MACOSX
volatile
#endif
float inf = NS_IEEEPositiveInfinity();
if (f == inf) {
iterationCount->SetIdent(eCSSKeyword_infinite);
} else {
iterationCount->SetNumber(f);
}
valueList->AppendCSSValue(iterationCount.forget());
} while (++i < display->mAnimationIterationCountCount);
return valueList.forget();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetAnimationPlayState()
{
const nsStyleDisplay* display = StyleDisplay();
RefPtr<nsDOMCSSValueList> valueList = GetROCSSValueList(true);
MOZ_ASSERT(display->mAnimationPlayStateCount > 0,
"first item must be explicit");
uint32_t i = 0;
do {
const StyleAnimation *animation = &display->mAnimations[i];
RefPtr<nsROCSSPrimitiveValue> playState = new nsROCSSPrimitiveValue;
playState->SetIdent(
nsCSSProps::ValueToKeywordEnum(animation->GetPlayState(),
nsCSSProps::kAnimationPlayStateKTable));
valueList->AppendCSSValue(playState.forget());
} while (++i < display->mAnimationPlayStateCount);
return valueList.forget();
}
static void
MarkComputedStyleMapDirty(const char* aPref, void* aData)
{
static_cast<nsComputedStyleMap*>(aData)->MarkDirty();
}
already_AddRefed<CSSValue>
nsComputedDOMStyle::DoGetCustomProperty(const nsAString& aPropertyName)
{
MOZ_ASSERT(nsCSSProps::IsCustomPropertyName(aPropertyName));
const nsStyleVariables* variables = StyleVariables();
nsString variableValue;
const nsAString& name = Substring(aPropertyName,
CSS_CUSTOM_NAME_PREFIX_LENGTH);
if (!variables->mVariables.Get(name, variableValue)) {
return nullptr;
}
RefPtr<nsROCSSPrimitiveValue> val = new nsROCSSPrimitiveValue;
val->SetString(variableValue);
return val.forget();
}
void
nsComputedDOMStyle::ParentChainChanged(nsIContent* aContent)
{
NS_ASSERTION(mContent == aContent, "didn't we register mContent?");
NS_ASSERTION(mResolvedStyleContext,
"should have only registered an observer when "
"mResolvedStyleContext is true");
ClearStyleContext();
}
/* static */ nsComputedStyleMap*
nsComputedDOMStyle::GetComputedStyleMap()
{
static nsComputedStyleMap map = {
{
#define COMPUTED_STYLE_PROP(prop_, method_) \
{ eCSSProperty_##prop_, &nsComputedDOMStyle::DoGet##method_ },
#include "nsComputedDOMStylePropertyList.h"
#undef COMPUTED_STYLE_PROP
}
};
return &map;
}
/* static */ void
nsComputedDOMStyle::RegisterPrefChangeCallbacks()
{
// Note that this will register callbacks for all properties with prefs, not
// just those that are implemented on computed style objects, as it's not
// easy to grab specific property data from nsCSSPropList.h based on the
// entries iterated in nsComputedDOMStylePropertyList.h.
nsComputedStyleMap* data = GetComputedStyleMap();
#define REGISTER_CALLBACK(pref_) \
if (pref_[0]) { \
Preferences::RegisterCallback(MarkComputedStyleMapDirty, pref_, data); \
}
#define CSS_PROP(prop_, id_, method_, flags_, pref_, parsevariant_, \
kwtable_, stylestruct_, stylestructoffset_, animtype_) \
REGISTER_CALLBACK(pref_)
#define CSS_PROP_LIST_INCLUDE_LOGICAL
#include "nsCSSPropList.h"
#undef CSS_PROP_LIST_INCLUDE_LOGICAL
#undef CSS_PROP
#undef REGISTER_CALLBACK
}
/* static */ void
nsComputedDOMStyle::UnregisterPrefChangeCallbacks()
{
nsComputedStyleMap* data = GetComputedStyleMap();
#define UNREGISTER_CALLBACK(pref_) \
if (pref_[0]) { \
Preferences::UnregisterCallback(MarkComputedStyleMapDirty, pref_, data); \
}
#define CSS_PROP(prop_, id_, method_, flags_, pref_, parsevariant_, \
kwtable_, stylestruct_, stylestructoffset_, animtype_) \
UNREGISTER_CALLBACK(pref_)
#define CSS_PROP_LIST_INCLUDE_LOGICAL
#include "nsCSSPropList.h"
#undef CSS_PROP_LIST_INCLUDE_LOGICAL
#undef CSS_PROP
#undef UNREGISTER_CALLBACK
}
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