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Auto merge of #11125 - pcwalton:reddit-block-formatting-context-fix, r=mbrubeck

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layout: Take margins in the inline direction into account when guessing the inline-size of block formatting contexts.

Fixes the layout on reddit.com.

Partially addresses #10571.

r? @mbrubeck

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This commit is contained in:
bors-servo 2016-05-11 00:41:00 -07:00
commit 98863746ae
5 changed files with 100 additions and 14 deletions
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12
components/layout/block.rs
View file

@ -1650,10 +1650,18 @@ impl BlockFlow {
// page set `max-width` in order to avoid hitting floats. The search box on Google
// SERPs falls into this category.)
if self.fragment.style.max_inline_size() == LengthOrPercentageOrNone::None {
let speculated_left_float_size =
max(Au(0),
self.base.speculated_float_placement_in.left -
self.fragment.margin.inline_start);
let speculated_right_float_size =
max(Au(0),
self.base.speculated_float_placement_in.right -
self.fragment.margin.inline_end);
self.fragment.border_box.size.inline =
self.fragment.border_box.size.inline -
self.base.speculated_float_placement_in.left -
self.base.speculated_float_placement_in.right;
speculated_left_float_size -
speculated_right_float_size;
}
}
FormattingContextType::None | FormattingContextType::Other => {}

22
components/layout/floats.rs
View file

@ -475,20 +475,18 @@ impl SpeculatedFloatPlacement {
let block_flow = flow.as_block();
if block_flow.formatting_context_type() != FormattingContextType::None {
*self = block_flow.base.speculated_float_placement_in;
}
if self.left > Au(0) || self.right > Au(0) {
let speculated_inline_content_edge_offsets =
block_flow.fragment.guess_inline_content_edge_offsets();
if self.left > Au(0) && speculated_inline_content_edge_offsets.start > Au(0) {
self.left = self.left + speculated_inline_content_edge_offsets.start
} else {
if self.left > Au(0) || self.right > Au(0) {
let speculated_inline_content_edge_offsets =
block_flow.fragment.guess_inline_content_edge_offsets();
if self.left > Au(0) && speculated_inline_content_edge_offsets.start > Au(0) {
self.left = self.left + speculated_inline_content_edge_offsets.start
}
if self.right > Au(0) && speculated_inline_content_edge_offsets.end > Au(0) {
self.right = self.right + speculated_inline_content_edge_offsets.end
}
}
if self.right > Au(0) && speculated_inline_content_edge_offsets.end > Au(0) {
self.right = self.right + speculated_inline_content_edge_offsets.end
}
}
if block_flow.formatting_context_type() == FormattingContextType::None {
self.left = max(self.left, block_flow.base.speculated_float_placement_in.left);
self.right = max(self.right, block_flow.base.speculated_float_placement_in.right);
}