gecko-dev/layout/style/nsStyleStructInlines.h

188 строки
5.7 KiB
C

/* 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::SetSubImage(uint8_t aIndex, imgIContainer* aSubImage) const
{
const_cast<nsStyleImage*>(this)->mSubImages.ReplaceObjectAt(aSubImage, aIndex);
}
inline imgIContainer*
nsStyleImage::GetSubImage(uint8_t aIndex) const
{
imgIContainer* subImage = nullptr;
if (aIndex < mSubImages.Count())
subImage = mSubImages[aIndex];
return subImage;
}
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();
}
bool
nsStyleText::WhiteSpaceCanWrap(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleText() == this, "unexpected aContextFrame");
return WhiteSpaceCanWrapStyle() && !aContextFrame->IsSVGText();
}
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();
}
uint8_t
nsStyleDisplay::GetDisplay(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this, "unexpected aContextFrame");
if (aContextFrame->IsSVGText() &&
mDisplay != NS_STYLE_DISPLAY_NONE) {
return aContextFrame->GetType() == nsGkAtoms::blockFrame ?
NS_STYLE_DISPLAY_BLOCK :
NS_STYLE_DISPLAY_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);
}
bool
nsStyleDisplay::IsFixedPosContainingBlock(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this,
"unexpected aContextFrame");
return (HasTransform(aContextFrame) || HasPerspectiveStyle() ||
aContextFrame->StyleSVGReset()->HasFilters()) &&
!aContextFrame->IsSVGText();
}
bool
nsStyleDisplay::IsAbsPosContainingBlock(const nsIFrame* aContextFrame) const
{
NS_ASSERTION(aContextFrame->StyleDisplay() == this,
"unexpected aContextFrame");
return ((IsAbsolutelyPositionedStyle() || IsRelativelyPositionedStyle()) &&
!aContextFrame->IsSVGText()) || IsFixedPosContainingBlock(aContextFrame);
}
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
nsStyleVisibility::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->StyleVisibility()->mPointerEvents;
}
}
return mPointerEvents;
}
#endif /* !defined(nsStyleStructInlines_h_) */