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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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
*/
#include "nsStyleChangeList.h"
#include "nsIContent.h"
#include "nsIFrame.h"
#include "nsFrameManager.h"
void
nsStyleChangeList::AppendChange(nsIFrame* aFrame, nsIContent* aContent, nsChangeHint aHint)
{
MOZ_ASSERT(aFrame || (aHint & nsChangeHint_ReconstructFrame),
"must have frame");
MOZ_ASSERT(aContent || !(aHint & nsChangeHint_ReconstructFrame),
"must have content");
// XXXbz we should make this take Element instead of nsIContent
MOZ_ASSERT(!aContent || aContent->IsElement() ||
// display:contents elements posts the changes for their children:
(aFrame && aContent->GetParent() &&
aFrame->PresContext()->FrameManager()->
GetDisplayContentsStyleFor(aContent->GetParent())),
"Shouldn't be trying to restyle non-elements directly, "
"except if it's a display:contents child");
MOZ_ASSERT(!(aHint & nsChangeHint_AllReflowHints) ||
(aHint & nsChangeHint_NeedReflow),
"Reflow hint bits set without actually asking for a reflow");
// Filter out all other changes for same content
if (!IsEmpty() && (aHint & nsChangeHint_ReconstructFrame)) {
if (aContent) {
// NOTE: This is captured by reference to please static analysis.
// Capturing it by value as a pointer should be fine in this case.
RemoveElementsBy([&](const nsStyleChangeData& aData) {
return aData.mContent == aContent;
});
}
}
if (!IsEmpty() && aFrame && aFrame == LastElement().mFrame) {
LastElement().mHint |= aHint;
return;
}
AppendElement(nsStyleChangeData { aFrame, aContent, aHint });
}
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