gecko-dev/layout/style/ServoStyleSet.cpp

267 строки
7.3 KiB
C++
Исходник Обычный вид История

/* -*- 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/. */
#include "mozilla/ServoStyleSet.h"
#include "nsCSSAnonBoxes.h"
#include "nsCSSPseudoElements.h"
#include "nsStyleContext.h"
#include "nsStyleSet.h"
using namespace mozilla;
using namespace mozilla::dom;
ServoStyleSet::ServoStyleSet()
: mPresContext(nullptr)
, mRawSet(Servo_InitStyleSet())
, mBatching(0)
{
}
void
ServoStyleSet::Init(nsPresContext* aPresContext)
{
mPresContext = aPresContext;
}
void
ServoStyleSet::BeginShutdown()
{
}
void
ServoStyleSet::Shutdown()
{
mRawSet = nullptr;
}
bool
ServoStyleSet::GetAuthorStyleDisabled() const
{
return false;
}
nsresult
ServoStyleSet::SetAuthorStyleDisabled(bool aStyleDisabled)
{
MOZ_CRASH("stylo: not implemented");
}
void
ServoStyleSet::BeginUpdate()
{
++mBatching;
}
nsresult
ServoStyleSet::EndUpdate()
{
MOZ_ASSERT(mBatching > 0);
if (--mBatching > 0) {
return NS_OK;
}
// ... do something ...
return NS_OK;
}
// resolve a style context
already_AddRefed<nsStyleContext>
ServoStyleSet::ResolveStyleFor(Element* aElement,
nsStyleContext* aParentContext)
{
RefPtr<ServoComputedValues> computedValues = dont_AddRef(Servo_GetComputedValues(aElement));
MOZ_ASSERT(computedValues);
// XXXbholley: nsStyleSet does visited handling here.
// XXXbholley: Figure out the correct thing to pass here. Does this fixup
// duplicate something that servo already does?
bool skipFixup = false;
return NS_NewStyleContext(aParentContext, mPresContext, nullptr,
CSSPseudoElementType::NotPseudo,
computedValues.forget(), skipFixup);
}
already_AddRefed<nsStyleContext>
ServoStyleSet::ResolveStyleFor(Element* aElement,
nsStyleContext* aParentContext,
TreeMatchContext& aTreeMatchContext)
{
MOZ_CRASH("stylo: not implemented");
}
already_AddRefed<nsStyleContext>
ServoStyleSet::ResolveStyleForNonElement(nsStyleContext* aParentContext,
nsIAtom* aPseudoTag)
{
MOZ_CRASH("stylo: not implemented");
}
already_AddRefed<nsStyleContext>
ServoStyleSet::ResolvePseudoElementStyle(Element* aParentElement,
CSSPseudoElementType aType,
nsStyleContext* aParentContext,
Element* aPseudoElement)
{
MOZ_CRASH("stylo: not implemented");
}
// aFlags is an nsStyleSet flags bitfield
already_AddRefed<nsStyleContext>
ServoStyleSet::ResolveAnonymousBoxStyle(nsIAtom* aPseudoTag,
nsStyleContext* aParentContext,
uint32_t aFlags)
{
MOZ_ASSERT(nsCSSAnonBoxes::IsAnonBox(aPseudoTag));
MOZ_ASSERT(aFlags == 0 ||
aFlags == nsStyleSet::eSkipParentDisplayBasedStyleFixup);
bool skipFixup = aFlags & nsStyleSet::eSkipParentDisplayBasedStyleFixup;
ServoComputedValues* parentStyle =
aParentContext ? aParentContext->StyleSource().AsServoComputedValues()
: nullptr;
RefPtr<ServoComputedValues> computedValues =
dont_AddRef(Servo_GetComputedValuesForAnonymousBox(parentStyle, aPseudoTag));
MOZ_ASSERT(computedValues);
return NS_NewStyleContext(aParentContext, mPresContext, nullptr,
CSSPseudoElementType::AnonBox,
computedValues.forget(), skipFixup);
}
// manage the set of style sheets in the style set
nsresult
ServoStyleSet::AppendStyleSheet(SheetType aType,
ServoStyleSheet* aSheet)
{
MOZ_ASSERT(aSheet);
MOZ_ASSERT(aSheet->IsApplicable());
MOZ_ASSERT(nsStyleSet::IsCSSSheetType(aType));
mSheets[aType].RemoveElement(aSheet);
mSheets[aType].AppendElement(aSheet);
// Maintain a mirrored list of sheets on the servo side.
Servo_AppendStyleSheet(aSheet->RawSheet(), mRawSet.get());
return NS_OK;
}
nsresult
ServoStyleSet::PrependStyleSheet(SheetType aType,
ServoStyleSheet* aSheet)
{
MOZ_ASSERT(aSheet);
MOZ_ASSERT(aSheet->IsApplicable());
MOZ_ASSERT(nsStyleSet::IsCSSSheetType(aType));
mSheets[aType].RemoveElement(aSheet);
mSheets[aType].InsertElementAt(0, aSheet);
// Maintain a mirrored list of sheets on the servo side.
Servo_PrependStyleSheet(aSheet->RawSheet(), mRawSet.get());
return NS_OK;
}
nsresult
ServoStyleSet::RemoveStyleSheet(SheetType aType,
ServoStyleSheet* aSheet)
{
MOZ_ASSERT(aSheet);
MOZ_ASSERT(aSheet->IsApplicable());
MOZ_ASSERT(nsStyleSet::IsCSSSheetType(aType));
mSheets[aType].RemoveElement(aSheet);
// Maintain a mirrored list of sheets on the servo side.
Servo_RemoveStyleSheet(aSheet->RawSheet(), mRawSet.get());
return NS_OK;
}
nsresult
ServoStyleSet::ReplaceSheets(SheetType aType,
const nsTArray<RefPtr<ServoStyleSheet>>& aNewSheets)
{
MOZ_CRASH("stylo: not implemented");
}
nsresult
ServoStyleSet::InsertStyleSheetBefore(SheetType aType,
ServoStyleSheet* aNewSheet,
ServoStyleSheet* aReferenceSheet)
{
MOZ_CRASH("stylo: not implemented");
}
int32_t
ServoStyleSet::SheetCount(SheetType aType) const
{
MOZ_ASSERT(nsStyleSet::IsCSSSheetType(aType));
return mSheets[aType].Length();
}
ServoStyleSheet*
ServoStyleSet::StyleSheetAt(SheetType aType,
int32_t aIndex) const
{
MOZ_ASSERT(nsStyleSet::IsCSSSheetType(aType));
return mSheets[aType][aIndex];
}
nsresult
ServoStyleSet::RemoveDocStyleSheet(ServoStyleSheet* aSheet)
{
MOZ_CRASH("stylo: not implemented");
}
nsresult
ServoStyleSet::AddDocStyleSheet(ServoStyleSheet* aSheet,
nsIDocument* aDocument)
{
// XXXbholley: Implement this.
NS_ERROR("stylo: no support for adding doc stylesheets to ServoStyleSet");
return NS_OK;
}
already_AddRefed<nsStyleContext>
ServoStyleSet::ProbePseudoElementStyle(Element* aParentElement,
CSSPseudoElementType aType,
nsStyleContext* aParentContext)
{
MOZ_CRASH("stylo: not implemented");
}
already_AddRefed<nsStyleContext>
ServoStyleSet::ProbePseudoElementStyle(Element* aParentElement,
CSSPseudoElementType aType,
nsStyleContext* aParentContext,
TreeMatchContext& aTreeMatchContext,
Element* aPseudoElement)
{
MOZ_CRASH("stylo: not implemented");
}
nsRestyleHint
ServoStyleSet::HasStateDependentStyle(dom::Element* aElement,
EventStates aStateMask)
{
MOZ_CRASH("stylo: not implemented");
}
nsRestyleHint
ServoStyleSet::HasStateDependentStyle(dom::Element* aElement,
CSSPseudoElementType aPseudoType,
dom::Element* aPseudoElement,
EventStates aStateMask)
{
MOZ_CRASH("stylo: not implemented");
}