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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/. */
/* Iterator class for frame lists that respect CSS "order" during layout */
#include "CSSOrderAwareFrameIterator.h"
#include "nsIFrameInlines.h"
static bool CanUse(const nsIFrame* aFrame) {
return aFrame->IsFlexOrGridContainer() ||
(aFrame->GetContent() && aFrame->GetContent()->IsAnyOfXULElements(
nsGkAtoms::treecols, nsGkAtoms::treecol));
}
namespace mozilla {
template <>
bool CSSOrderAwareFrameIterator::CanUse(const nsIFrame* aFrame) {
return ::CanUse(aFrame);
}
template <>
bool ReverseCSSOrderAwareFrameIterator::CanUse(const nsIFrame* aFrame) {
return ::CanUse(aFrame);
}
template <>
int CSSOrderAwareFrameIterator::CSSOrderComparator(nsIFrame* const& a,
nsIFrame* const& b) {
const auto o1 = a->StylePosition()->mOrder;
const auto o2 = b->StylePosition()->mOrder;
return (o1 > o2) - (o1 < o2);
}
template <>
int CSSOrderAwareFrameIterator::CSSBoxOrdinalGroupComparator(
nsIFrame* const& a, nsIFrame* const& b) {
const auto o1 = a->StyleXUL()->mBoxOrdinal;
const auto o2 = b->StyleXUL()->mBoxOrdinal;
return (o1 > o2) - (o1 < o2);
}
template <>
bool CSSOrderAwareFrameIterator::IsForward() const {
return true;
}
template <>
nsFrameList::iterator CSSOrderAwareFrameIterator::begin(
const nsFrameList& aList) {
return aList.begin();
}
template <>
nsFrameList::iterator CSSOrderAwareFrameIterator::end(
const nsFrameList& aList) {
return aList.end();
}
template <>
int ReverseCSSOrderAwareFrameIterator::CSSOrderComparator(nsIFrame* const& a,
nsIFrame* const& b) {
const auto o1 = a->StylePosition()->mOrder;
const auto o2 = b->StylePosition()->mOrder;
return (o2 > o1) - (o2 < o1);
}
template <>
int ReverseCSSOrderAwareFrameIterator::CSSBoxOrdinalGroupComparator(
nsIFrame* const& a, nsIFrame* const& b) {
const auto o1 = a->StyleXUL()->mBoxOrdinal;
const auto o2 = b->StyleXUL()->mBoxOrdinal;
return (o2 > o1) - (o2 < o1);
}
template <>
bool ReverseCSSOrderAwareFrameIterator::IsForward() const {
return false;
}
template <>
nsFrameList::reverse_iterator ReverseCSSOrderAwareFrameIterator::begin(
const nsFrameList& aList) {
return aList.rbegin();
}
template <>
nsFrameList::reverse_iterator ReverseCSSOrderAwareFrameIterator::end(
const nsFrameList& aList) {
return aList.rend();
}
} // namespace mozilla
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