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auto merge of #4937 : glennw/servo/pc-height, r=pcwalton

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This allows using standard CSS techniques to place a footer at the bottom of the page.
This commit is contained in:
bors-servo 2015-02-16 13:19:02 -07:00
commit c7d3ea1c65
4 changed files with 50 additions and 4 deletions
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16
components/layout/block.rs
View file

@ -1299,8 +1299,16 @@ impl BlockFlow {
// Calculate non-auto block size to pass to children.
let content_block_size = self.fragment.style().content_block_size();
let explicit_content_size = match (content_block_size,
self.base.block_container_explicit_block_size) {
let parent_container_size = if self.is_root() {
let screen_size = LogicalSize::from_physical(self.fragment.style.writing_mode,
layout_context.shared.screen_size);
Some(screen_size.block)
} else {
self.base.block_container_explicit_block_size
};
let explicit_content_size = match (content_block_size, parent_container_size) {
(LengthOrPercentageOrAuto::Percentage(percent), Some(container_size)) => {
Some(container_size.scale_by(percent))
}
@ -1688,10 +1696,10 @@ impl Flow for BlockFlow {
}
} else if self.is_root() || self.base.flags.is_float() || self.is_inline_block() {
// Root element margins should never be collapsed according to CSS § 8.3.1.
debug!("assign_block_size: assigning block_size for root flow");
debug!("assign_block_size: assigning block_size for root flow {:?}", flow::base(self).debug_id());
self.assign_block_size_block_base(ctx, MarginsMayCollapseFlag::MarginsMayNotCollapse);
} else {
debug!("assign_block_size: assigning block_size for block");
debug!("assign_block_size: assigning block_size for block {:?}", flow::base(self).debug_id());
self.assign_block_size_block_base(ctx, MarginsMayCollapseFlag::MarginsMayCollapse);
}
}

1
tests/ref/basic.list
View file

@ -247,3 +247,4 @@ fragment=top != ../html/acid2.html acid2_ref.html
== text_justify_none_a.html text_justify_none_ref.html
== text_overflow_basic_a.html text_overflow_basic_ref.html
== text_align_complex_a.html text_align_complex_ref.html
== percentage_height_root.html percentage_height_root_ref.html

19
tests/ref/percentage_height_root.html Normal file
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@ -0,0 +1,19 @@
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
html, body {
margin: 0;
padding: 0;
height: 100%;
}
div {
height: 100%;
background-color: green;
}
</style>
</head>
<body>
<div></div>
</body>
</html>

18
tests/ref/percentage_height_root_ref.html Normal file
View file

@ -0,0 +1,18 @@
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
div {
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
background-color: green;
}
</style>
</head>
<body>
<div></div>
</body>
</html>