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Bug 185357. Collect out-of-flow frames for overflowing placeholders even if the placeholders are indirect (inline) children of the line. r+sr=dbaron

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This commit is contained in:
roc+%cs.cmu.edu 2004-06-27 02:01:06 +00:00
parent 91efac3a92
commit 5d17e16f0a
2 changed files with 86 additions and 44 deletions
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65
layout/generic/nsBlockFrame.cpp
View File

@ -6453,6 +6453,47 @@ nsBlockFrame::ReflowBullet(nsBlockReflowState& aState,
mBullet->DidReflow(aState.mPresContext, &aState.mReflowState, NS_FRAME_REFLOW_FINISHED);
}
// This is used to scan overflow frames for any float placeholders,
// and add their floats to the list represented by aHead and aTail. We
// only search the inline descendants.
static void CollectOverflowFloats(nsIFrame* aFrame, nsIFrame* aBlockParent,
nsIFrame** aHead, nsIFrame** aTail) {
while (aFrame) {
// Don't descend into block children
if (!aFrame->GetStyleDisplay()->IsBlockLevel()) {
if (nsLayoutAtoms::placeholderFrame == aFrame->GetType()) {
nsIFrame *outOfFlowFrame =
NS_STATIC_CAST(nsPlaceholderFrame*, aFrame)->GetOutOfFlowFrame();
// Make sure that its parent is the block we care
// about. Otherwise we don't want to mess around with it because
// it belongs to someone else. I think this could happen if the
// overflow lines contain a block descendant which owns its own
// floats.
if (outOfFlowFrame &&
!outOfFlowFrame->GetStyleDisplay()->IsAbsolutelyPositioned()) {
NS_ASSERTION(outOfFlowFrame->GetParent() == aBlockParent,
"Out of flow frame doesn't have the expected parent");
// It's not an absolute or fixed positioned frame, so it must
// be a float!
// XXX This is a lame-o way of detecting a float, but it's the
// only way apparently
if (!*aHead) {
*aHead = *aTail = outOfFlowFrame;
} else {
(*aTail)->SetNextSibling(outOfFlowFrame);
*aTail = outOfFlowFrame;
}
}
}
CollectOverflowFloats(aFrame->GetFirstChild(nsnull), aBlockParent,
aHead, aTail);
}
aFrame = aFrame->GetNextSibling();
}
}
//XXX get rid of this -- its slow
void
nsBlockFrame::BuildFloatList()
@ -6494,29 +6535,9 @@ nsBlockFrame::BuildFloatList()
head = nsnull;
current = nsnull;
nsIFrame* frame = overflowLines->front()->mFirstChild;
while (frame) {
if (nsLayoutAtoms::placeholderFrame == frame->GetType()) {
nsIFrame *outOfFlowFrame = NS_STATIC_CAST(nsPlaceholderFrame*, frame)->GetOutOfFlowFrame();
if (outOfFlowFrame &&
!outOfFlowFrame->GetStyleDisplay()->IsAbsolutelyPositioned()) {
// It's not an absolute or fixed positioned frame, so it
// must be a float!
// XXX This is a lame-o way of detecting a float, but it's the only way
// apparently
if (!head) {
head = current = outOfFlowFrame;
} else {
current->SetNextSibling(outOfFlowFrame);
current = outOfFlowFrame;
}
}
}
CollectOverflowFloats(overflowLines->front()->mFirstChild,
this, &head, &current);
// XXXldb What about a placeholder within an inline or block descendant?
frame = frame->GetNextSibling();
}
if (current) {
current->SetNextSibling(nsnull);
nsFrameList* frameList = new nsFrameList(head);

65
layout/html/base/src/nsBlockFrame.cpp
View File

@ -6453,6 +6453,47 @@ nsBlockFrame::ReflowBullet(nsBlockReflowState& aState,
mBullet->DidReflow(aState.mPresContext, &aState.mReflowState, NS_FRAME_REFLOW_FINISHED);
}
// This is used to scan overflow frames for any float placeholders,
// and add their floats to the list represented by aHead and aTail. We
// only search the inline descendants.
static void CollectOverflowFloats(nsIFrame* aFrame, nsIFrame* aBlockParent,
nsIFrame** aHead, nsIFrame** aTail) {
while (aFrame) {
// Don't descend into block children
if (!aFrame->GetStyleDisplay()->IsBlockLevel()) {
if (nsLayoutAtoms::placeholderFrame == aFrame->GetType()) {
nsIFrame *outOfFlowFrame =
NS_STATIC_CAST(nsPlaceholderFrame*, aFrame)->GetOutOfFlowFrame();
// Make sure that its parent is the block we care
// about. Otherwise we don't want to mess around with it because
// it belongs to someone else. I think this could happen if the
// overflow lines contain a block descendant which owns its own
// floats.
if (outOfFlowFrame &&
!outOfFlowFrame->GetStyleDisplay()->IsAbsolutelyPositioned()) {
NS_ASSERTION(outOfFlowFrame->GetParent() == aBlockParent,
"Out of flow frame doesn't have the expected parent");
// It's not an absolute or fixed positioned frame, so it must
// be a float!
// XXX This is a lame-o way of detecting a float, but it's the
// only way apparently
if (!*aHead) {
*aHead = *aTail = outOfFlowFrame;
} else {
(*aTail)->SetNextSibling(outOfFlowFrame);
*aTail = outOfFlowFrame;
}
}
}
CollectOverflowFloats(aFrame->GetFirstChild(nsnull), aBlockParent,
aHead, aTail);
}
aFrame = aFrame->GetNextSibling();
}
}
//XXX get rid of this -- its slow
void
nsBlockFrame::BuildFloatList()
@ -6494,29 +6535,9 @@ nsBlockFrame::BuildFloatList()
head = nsnull;
current = nsnull;
nsIFrame* frame = overflowLines->front()->mFirstChild;
while (frame) {
if (nsLayoutAtoms::placeholderFrame == frame->GetType()) {
nsIFrame *outOfFlowFrame = NS_STATIC_CAST(nsPlaceholderFrame*, frame)->GetOutOfFlowFrame();
if (outOfFlowFrame &&
!outOfFlowFrame->GetStyleDisplay()->IsAbsolutelyPositioned()) {
// It's not an absolute or fixed positioned frame, so it
// must be a float!
// XXX This is a lame-o way of detecting a float, but it's the only way
// apparently
if (!head) {
head = current = outOfFlowFrame;
} else {
current->SetNextSibling(outOfFlowFrame);
current = outOfFlowFrame;
}
}
}
CollectOverflowFloats(overflowLines->front()->mFirstChild,
this, &head, &current);
// XXXldb What about a placeholder within an inline or block descendant?
frame = frame->GetNextSibling();
}
if (current) {
current->SetNextSibling(nsnull);
nsFrameList* frameList = new nsFrameList(head);