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Skip anonymous table objects (and our extra cell content box) when finding parents for style contexts of their descendants during style reresolution. b=289517 Patch from Boris Zbarsky <bzbarsky@mit.edu>. r+sr=dbaron

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This commit is contained in:
dbaron%dbaron.org 2005-12-17 18:58:47 +00:00
parent b58e8b8430
commit 22d6401242
1 changed files with 27 additions and 8 deletions
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35
layout/generic/nsFrame.cpp
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@ -4529,6 +4529,20 @@ GetIBSpecialSibling(nsPresContext* aPresContext,
return NS_OK;
}
static PRBool
IsTablePseudo(nsIAtom* aPseudo)
{
return
aPseudo == nsCSSAnonBoxes::tableOuter ||
aPseudo == nsCSSAnonBoxes::table ||
aPseudo == nsCSSAnonBoxes::tableRowGroup ||
aPseudo == nsCSSAnonBoxes::tableRow ||
aPseudo == nsCSSAnonBoxes::tableCell ||
aPseudo == nsCSSAnonBoxes::cellContent ||
aPseudo == nsCSSAnonBoxes::tableColGroup ||
aPseudo == nsCSSAnonBoxes::tableCol;
}
/**
* Get the parent, corrected for the mangled frame tree resulting from
* having a block within an inline. The result only differs from the
@ -4546,17 +4560,22 @@ GetCorrectedParent(nsPresContext* aPresContext, nsIFrame* aFrame,
nsIFrame *parent = aFrame->GetParent();
*aSpecialParent = parent;
if (parent) {
nsIAtom* parentPseudo = parent->GetStyleContext()->GetPseudoType();
nsIAtom* pseudo = aFrame->GetStyleContext()->GetPseudoType();
// if this frame itself is not scrolled-content, then skip any scrolled-content
// parents since they're basically anonymous as far as the style system goes
if (parentPseudo == nsCSSAnonBoxes::scrolledContent) {
nsIAtom* pseudo = aFrame->GetStyleContext()->GetPseudoType();
if (pseudo != nsCSSAnonBoxes::scrolledContent) {
do {
parent = parent->GetParent();
parentPseudo = parent->GetStyleContext()->GetPseudoType();
} while (parentPseudo == nsCSSAnonBoxes::scrolledContent);
if (pseudo != nsCSSAnonBoxes::scrolledContent) {
while (parent->GetStyleContext()->GetPseudoType() ==
nsCSSAnonBoxes::scrolledContent) {
parent = parent->GetParent();
}
}
// If the frame is not a table pseudo frame, we want to move up
// the tree till we get to a non-table-pseudo frame.
if (!IsTablePseudo(pseudo)) {
while (IsTablePseudo(parent->GetStyleContext()->GetPseudoType())) {
parent = parent->GetParent();
}
}