layout/generic/CSSOrderAwareFrameIterator.cpp
author Nika Layzell <nika@thelayzells.com>
Tue, 25 Sep 2018 17:34:53 +0200
changeset 507828 5e6dae0c1e5a4939ccd406f14607f7fafffd45a7
parent 402006 f6cc0dd3e7b8d90d0b1d29d5835a1bc4075211e4
child 508163 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1448426 - Wrap windows.h to avoid problematic define statements, r=froydnj,glandium By default, windows.h exposes a large number of problematic define statements which are UpperCamelCase, such as a define from `CreateWindow` to `CreateWindow{A,W}`. As many of these names are generic (e.g. CreateFile, CreateWindow), they can mess up Gecko code that may legitimately have its own methods with the same names. The header also defines some traditional SCREAMING_SNAKE_CASE defines which can mess up our code by conflicting with local values. This patch adds a simple code generator which generates wrappers for these defines, and uses them to wrap the windows.h wrapper using the `stl_wrappers` mechanism, allowing us to use windows.h in more places. Differential Revision: https://phabricator.services.mozilla.com/D10932

/* -*- 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"

namespace mozilla {

template<>
bool
CSSOrderAwareFrameIterator::CSSOrderComparator(nsIFrame* const& a,
                                               nsIFrame* const& b)
{ return a->StylePosition()->mOrder < b->StylePosition()->mOrder; }

template<>
bool
CSSOrderAwareFrameIterator::CSSBoxOrdinalGroupComparator(nsIFrame* const& a,
                                                         nsIFrame* const& b)
{ return a->StyleXUL()->mBoxOrdinal < b->StyleXUL()->mBoxOrdinal; }

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<>
bool
ReverseCSSOrderAwareFrameIterator::CSSOrderComparator(nsIFrame* const& a,
                                                      nsIFrame* const& b)
{ return a->StylePosition()->mOrder > b->StylePosition()->mOrder; }

template<>
bool
ReverseCSSOrderAwareFrameIterator::CSSBoxOrdinalGroupComparator(nsIFrame* const& a,
                                                                nsIFrame* const& b)
{ return a->StyleXUL()->mBoxOrdinal > b->StyleXUL()->mBoxOrdinal; }

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