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/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
/* 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/. */
/*
* Inline methods that belong in nsStyleStruct.h, except that they
* require more headers.
*/
#ifndef nsStyleStructInlines_h_
#define nsStyleStructInlines_h_
#include "nsIFrame.h"
#include "nsStyleStruct.h"
#include "nsIContent.h" // for GetParent()
#include "nsTextFrame.h" // for nsTextFrame::ShouldSuppressLineBreak
inline void
nsStyleImage::EnsureCachedBIData() const
{
if (!mCachedBIData) {
const_cast<nsStyleImage*>(this)->mCachedBIData =
mozilla::MakeUnique<CachedBorderImageData>();
}
}
inline void
nsStyleImage::SetSubImage(uint8_t aIndex, imgIContainer* aSubImage) const
{
EnsureCachedBIData();
mCachedBIData->SetSubImage(aIndex, aSubImage);
}
inline imgIContainer*
nsStyleImage::GetSubImage(uint8_t aIndex) const
{
return (mCachedBIData) ? mCachedBIData->GetSubImage(aIndex) : nullptr;
}
bool
nsStyleText::HasTextShadow() const
{
return mTextShadow;
}
nsCSSShadowArray*
nsStyleText::GetTextShadow() const
{
return mTextShadow;
}
bool
nsStyleText::NewlineIsSignificant(const nsTextFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return NewlineIsSignificantStyle() &&
!aContextFrame->ShouldSuppressLineBreak() &&
!aContextFrame->StyleContext()->IsTextCombined();
}
bool
nsStyleText::WhiteSpaceCanWrap(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return WhiteSpaceCanWrapStyle() && !aContextFrame->IsSVGText() &&
!aContextFrame->StyleContext()->IsTextCombined();
}
bool
nsStyleText::WordCanWrap(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return WordCanWrapStyle() && !aContextFrame->IsSVGText();
}
bool
nsStyleDisplay::IsBlockInside(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText()) {
return aContextFrame->GetType() == nsGkAtoms::blockFrame;
}
return IsBlockInsideStyle();
}
bool
nsStyleDisplay::IsBlockOutside(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText()) {
return aContextFrame->GetType() == nsGkAtoms::blockFrame;
}
return IsBlockOutsideStyle();
}
bool
nsStyleDisplay::IsInlineOutside(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText()) {
return aContextFrame->GetType() != nsGkAtoms::blockFrame;
}
return IsInlineOutsideStyle();
}
bool
nsStyleDisplay::IsOriginalDisplayInlineOutside(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText()) {
return aContextFrame->GetType() != nsGkAtoms::blockFrame;
}
return IsOriginalDisplayInlineOutsideStyle();
}
mozilla::StyleDisplay
nsStyleDisplay::GetDisplay(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText() && mDisplay != mozilla::StyleDisplay::None) {
return aContextFrame->GetType() == nsGkAtoms::blockFrame ?
mozilla::StyleDisplay::Block : mozilla::StyleDisplay::Inline;
}
return mDisplay;
}
bool
nsStyleDisplay::IsFloating(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
return IsFloatingStyle() && !aContextFrame->IsSVGText();
}
// If you change this function, also change the corresponding block in
// nsCSSFrameConstructor::ConstructFrameFromItemInternal that references
// this function in comments.
bool
nsStyleDisplay::HasTransform(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
return HasTransformStyle() && aContextFrame->IsFrameOfType(nsIFrame::eSupportsCSSTransforms);
}
template<class StyleContextLike>
bool
nsStyleDisplay::HasFixedPosContainingBlockStyleInternal(
StyleContextLike* aStyleContext) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_FIXPOS_CB set on them.
NS_ASSERTION(aStyleContext->StyleDisplay() == this,
"unexpected aStyleContext");
return IsContainPaint() ||
HasPerspectiveStyle() ||
(mWillChangeBitField & NS_STYLE_WILL_CHANGE_FIXPOS_CB) ||
aStyleContext->StyleEffects()->HasFilters();
}
template<class StyleContextLike>
bool
nsStyleDisplay::IsFixedPosContainingBlockForAppropriateFrame(
StyleContextLike* aStyleContext) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_FIXPOS_CB set on them.
return HasFixedPosContainingBlockStyleInternal(aStyleContext) ||
HasTransformStyle();
}
bool
nsStyleDisplay::IsFixedPosContainingBlock(const nsIFrame* aContextFrame) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_FIXPOS_CB set on them.
if (!HasFixedPosContainingBlockStyleInternal(aContextFrame->StyleContext()) &&
!HasTransform(aContextFrame)) {
return false;
}
return !aContextFrame->IsSVGText();
}
template<class StyleContextLike>
bool
nsStyleDisplay::HasAbsPosContainingBlockStyleInternal(
StyleContextLike* aStyleContext) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_ABSPOS_CB set on them.
NS_ASSERTION(aStyleContext->StyleDisplay() == this,
"unexpected aStyleContext");
return IsAbsolutelyPositionedStyle() ||
IsRelativelyPositionedStyle() ||
(mWillChangeBitField & NS_STYLE_WILL_CHANGE_ABSPOS_CB);
}
template<class StyleContextLike>
bool
nsStyleDisplay::IsAbsPosContainingBlockForAppropriateFrame(StyleContextLike* aStyleContext) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_ABSPOS_CB set on them.
return HasAbsPosContainingBlockStyleInternal(aStyleContext) ||
IsFixedPosContainingBlockForAppropriateFrame(aStyleContext);
}
bool
nsStyleDisplay::IsAbsPosContainingBlock(const nsIFrame* aContextFrame) const
{
// NOTE: Any CSS properties that influence the output of this function
// should have the CSS_PROPERTY_ABSPOS_CB set on them.
nsStyleContext* sc = aContextFrame->StyleContext();
if (!HasAbsPosContainingBlockStyleInternal(sc) &&
!HasFixedPosContainingBlockStyleInternal(sc) &&
!HasTransform(aContextFrame)) {
return false;
}
return !aContextFrame->IsSVGText();
}
bool
nsStyleDisplay::IsRelativelyPositioned(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
return IsRelativelyPositionedStyle() && !aContextFrame->IsSVGText();
}
bool
nsStyleDisplay::IsAbsolutelyPositioned(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
return IsAbsolutelyPositionedStyle() && !aContextFrame->IsSVGText();
}
uint8_t
nsStyleUserInterface::GetEffectivePointerEvents(nsIFrame* aFrame) const
{
if (aFrame->GetContent() && !aFrame->GetContent()->GetParent()) {
// The root element has a cluster of frames associated with it
// (root scroll frame, canvas frame, the actual primary frame). Make
// those take their pointer-events value from the root element's primary
// frame.
nsIFrame* f = aFrame->GetContent()->GetPrimaryFrame();
if (f) {
return f->StyleUserInterface()->mPointerEvents;
}
}
return mPointerEvents;
}
bool
nsStyleBackground::HasLocalBackground() const
{
NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(i, mImage) {
const nsStyleImageLayers::Layer& layer = mImage.mLayers[i];
if (!layer.mImage.IsEmpty() &&
layer.mAttachment == NS_STYLE_IMAGELAYER_ATTACHMENT_LOCAL) {
return true;
}
}
return false;
}
#endif /* !defined(nsStyleStructInlines_h_) */
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