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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/. */
/*
* a list of the recomputation that needs to be done in response to a
* style change
*/
#ifndef nsStyleChangeList_h___
#define nsStyleChangeList_h___
#include "mozilla/Attributes.h"
#include "nsChangeHint.h"
#include "nsCOMPtr.h"
#include "nsTArray.h"
class nsIFrame;
class nsIContent;
struct nsStyleChangeData {
nsIFrame* mFrame; // weak
nsCOMPtr<nsIContent> mContent;
nsChangeHint mHint;
};
class nsStyleChangeList : private AutoTArray<nsStyleChangeData, 10> {
typedef AutoTArray<nsStyleChangeData, 10> base_type;
nsStyleChangeList(const nsStyleChangeList&) = delete;
public:
using base_type::begin;
using base_type::Clear;
using base_type::end;
using base_type::IsEmpty;
using base_type::Length;
using base_type::operator[];
MOZ_COUNTED_DEFAULT_CTOR(nsStyleChangeList)
MOZ_COUNTED_DTOR(nsStyleChangeList)
void AppendChange(nsIFrame* aFrame, nsIContent* aContent, nsChangeHint aHint);
// Starting from the end of the list, removes all changes until the list is
// empty or an element with |mContent != aContent| is found.
void PopChangesForContent(nsIContent* aContent) {
while (!IsEmpty() && LastElement().mContent == aContent) {
RemoveLastElement();
}
}
};
#endif /* nsStyleChangeList_h___ */