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Don't try to remove whitespace twice if it's the only node.

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Fixes a failure on Wikipedia.
This commit is contained in:
Patrick Walton 2013-05-29 18:30:40 -07:00
parent 02c57728c5
commit dcfabb71d1
1 changed files with 23 additions and 20 deletions
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43
src/components/main/layout/box_builder.rs
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@ -370,43 +370,46 @@ pub impl LayoutTreeBuilder {
// of its RenderBox or FlowContext children, and possibly keep alive other junk
let parent_flow = parent_ctx.default_collector.flow;
let (first_child, last_child) = do parent_flow.with_base |parent_node| {
(parent_node.first_child, parent_node.last_child)
};
// check first/last child for whitespace-ness
let first_child = do parent_flow.with_base |parent_node| {
parent_node.first_child
};
for first_child.each |first_flow| {
if first_flow.starts_inline_flow() {
// FIXME: workaround for rust#6393
let mut do_remove = false;
{
let boxes = &first_flow.inline().boxes;
if boxes.len() == 1 && boxes[0].is_whitespace_only() {
debug!("LayoutTreeBuilder: pruning whitespace-only first child flow \
f%d from parent f%d",
first_flow.id(),
parent_flow.id());
do_remove = true;
}
let boxes = &first_flow.inline().boxes;
if boxes.len() == 1 && boxes[0].is_whitespace_only() {
debug!("LayoutTreeBuilder: pruning whitespace-only first child \
flow f%d from parent f%d",
first_flow.id(),
parent_flow.id());
do_remove = true;
}
}
if (do_remove) {
parent_flow.remove_child(*first_flow);
}
}
}
let last_child = do parent_flow.with_base |parent_node| {
parent_node.last_child
};
for last_child.each |last_flow| {
if last_flow.starts_inline_flow() {
// FIXME: workaround for rust#6393
let mut do_remove = false;
{
let boxes = &last_flow.inline().boxes;
if boxes.len() == 1 && boxes.last().is_whitespace_only() {
debug!("LayoutTreeBuilder: pruning whitespace-only last child flow \
f%d from parent f%d",
last_flow.id(),
parent_flow.id());
do_remove = true;
}
let boxes = &last_flow.inline().boxes;
if boxes.len() == 1 && boxes.last().is_whitespace_only() {
debug!("LayoutTreeBuilder: pruning whitespace-only last child \
flow f%d from parent f%d",
last_flow.id(),
parent_flow.id());
do_remove = true;
}
}
if (do_remove) {
parent_flow.remove_child(*last_flow);