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Merge pull request #3217 from glennw/layout-fixes

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Fix inline size bubbling with fixed width block. Improve intrinsic inline size calculation for text fragments.
This commit is contained in:
Josh Matthews 2014-09-05 10:05:14 -04:00
commit 64a9075535
9 changed files with 180 additions and 11 deletions
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23
src/components/layout/block.rs
View file

@ -1450,6 +1450,14 @@ impl Flow for BlockFlow {
flags.set_has_left_floated_descendants(false);
flags.set_has_right_floated_descendants(false);
// If this block has a fixed width, just use that for the minimum
// and preferred width, rather than bubbling up children inline
// width.
let fixed_width = match self.fragment.style().get_box().width {
LPA_Length(_) => true,
_ => false,
};
// Find the maximum inline-size from children.
let mut intrinsic_inline_sizes = IntrinsicISizes::new();
for child_ctx in self.base.child_iter() {
@ -1458,12 +1466,15 @@ impl Flow for BlockFlow {
child_ctx.is_table_kind());
let child_base = flow::mut_base(child_ctx);
intrinsic_inline_sizes.minimum_inline_size =
geometry::max(intrinsic_inline_sizes.minimum_inline_size,
child_base.intrinsic_inline_sizes.total_minimum_inline_size());
intrinsic_inline_sizes.preferred_inline_size =
geometry::max(intrinsic_inline_sizes.preferred_inline_size,
child_base.intrinsic_inline_sizes.total_preferred_inline_size());
if !fixed_width {
intrinsic_inline_sizes.minimum_inline_size =
geometry::max(intrinsic_inline_sizes.minimum_inline_size,
child_base.intrinsic_inline_sizes.total_minimum_inline_size());
intrinsic_inline_sizes.preferred_inline_size =
geometry::max(intrinsic_inline_sizes.preferred_inline_size,
child_base.intrinsic_inline_sizes.total_preferred_inline_size());
}
flags.union_floated_descendants_flags(child_base.flags);
}

8
src/components/layout/fragment.rs
View file

@ -1105,11 +1105,9 @@ impl Fragment {
let range = &text_fragment_info.range;
let min_line_inline_size = text_fragment_info.run.min_width_for_range(range);
let mut max_line_inline_size = Au::new(0);
for line_range in text_fragment_info.run.iter_natural_lines_for_range(range) {
let line_metrics = text_fragment_info.run.metrics_for_range(&line_range);
max_line_inline_size = Au::max(max_line_inline_size, line_metrics.advance_width);
}
// See http://dev.w3.org/csswg/css-sizing/#max-content-inline-size.
// TODO: Account for soft wrap opportunities.
let max_line_inline_size = text_fragment_info.run.metrics_for_range(range).advance_width;
result.minimum_inline_size = geometry::max(result.minimum_inline_size, min_line_inline_size);
result.preferred_inline_size = geometry::max(result.preferred_inline_size, max_line_inline_size);

3
src/test/ref/basic.list
View file

@ -107,3 +107,6 @@ flaky_gpu,flaky_linux == acid2_noscroll.html acid2_ref_broken.html
!= inline_background_a.html inline_background_ref.html
== inline_element_border_a.html inline_element_border_ref.html
== float_intrinsic_width_a.html float_intrinsic_width_ref.html
== float_right_intrinsic_width_a.html float_right_intrinsic_width_ref.html
== fixed_width_overrides_child_intrinsic_width_a.html fixed_width_overrides_child_intrinsic_width_ref.html

33
src/test/ref/fixed_width_overrides_child_intrinsic_width_a.html Normal file
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@ -0,0 +1,33 @@
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
@font-face {
font-family: 'ahem';
src: url('fonts/ahem/ahem.ttf');
}
body {
font-family: 'ahem';
font-size: 100px;
margin: 0;
line-height: 1;
}
.fr {
float: right;
}
.green {
color: green;
}
.fixed {
width: 100px;
}
</style>
</head>
<body>
<div class="fr">
<div class="fixed">
<span class="green">X X</span>
</div>
</div>
</body>
</html>

23
src/test/ref/fixed_width_overrides_child_intrinsic_width_ref.html Normal file
View file

@ -0,0 +1,23 @@
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
.fr {
float: right;
}
.green {
background-color: green;
}
.fixed {
width: 100px;
height: 200px;
}
body {
margin: 0;
}
</style>
</head>
<body>
<div class="fr green fixed"></div>
</body>
</html>

26
src/test/ref/float_intrinsic_width_a.html Normal file
View file

@ -0,0 +1,26 @@
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
@font-face {
font-family: 'ahem';
src: url('fonts/ahem/ahem.ttf');
}
body {
font-family: 'ahem';
font-size: 100px;
margin: 0;
line-height: 1;
}
.fl {
float: left;
}
.green {
color: green;
}
</style>
</head>
<body>
<div class="fl green">X X</div>
</body>
</html>

25
src/test/ref/float_intrinsic_width_ref.html Normal file
View file

@ -0,0 +1,25 @@
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
.fl {
float: left;
}
.green {
background-color: green;
}
.fixed {
width: 100px;
height: 100px;
}
body {
margin: 0;
}
</style>
</head>
<body>
<div class="fl green fixed"></div>
<div class="fl fixed"></div>
<div class="fl green fixed"></div>
</body>
</html>

25
src/test/ref/float_right_intrinsic_width_a.html Normal file
View file

@ -0,0 +1,25 @@
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
@font-face {
font-family: 'ahem';
src: url(fonts/ahem/ahem.ttf);
}
.fr {
float: right;
}
.green {
color: green;
}
body {
font-family: 'ahem';
font-size: 100px;
margin: 0;
}
</style>
</head>
<body>
<div class="fr green">X X</div>
</body>
</html>

25
src/test/ref/float_right_intrinsic_width_ref.html Normal file
View file

@ -0,0 +1,25 @@
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
.fr {
float: right;
}
.green {
background-color: green;
}
.fixed {
width: 100px;
height: 100px;
}
body {
margin: 0;
}
</style>
</head>
<body>
<div class="fr green fixed"></div>
<div class="fr fixed"></div>
<div class="fr green fixed"></div>
</body>
</html>