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Bug 1374233 - Part 2: Add NonNegativeAu.

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Add values::computed::NonNegativeAu, so BorderSideWith could be computed
to this non-negative Au, for the following properties:
1. outline-width
2. border-{*}-width
3. column-rule-width
4. -webkit-text-stroke-width

MozReview-Commit-ID: ASHaB2F7VtM
This commit is contained in:
Boris Chiou 2017-07-20 13:11:37 +08:00
parent 4cc97746f2
commit 191c2a282b
16 changed files with 113 additions and 64 deletions
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16
components/layout/query.rs
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@ -450,10 +450,10 @@ impl FragmentBorderBoxIterator for FragmentLocatingFragmentIterator {
border_left_width: left_width,
..
} = *fragment.style.get_border();
self.client_rect.origin.y = top_width.to_px();
self.client_rect.origin.x = left_width.to_px();
self.client_rect.size.width = (border_box.size.width - left_width - right_width).to_px();
self.client_rect.size.height = (border_box.size.height - top_width - bottom_width).to_px();
self.client_rect.origin.y = top_width.0.to_px();
self.client_rect.origin.x = left_width.0.to_px();
self.client_rect.size.width = (border_box.size.width - left_width.0 - right_width.0).to_px();
self.client_rect.size.height = (border_box.size.height - top_width.0 - bottom_width.0).to_px();
}
fn should_process(&mut self, fragment: &Fragment) -> bool {
@ -476,10 +476,10 @@ impl FragmentBorderBoxIterator for UnioningFragmentScrollAreaIterator {
border_left_width: left_border,
..
} = *fragment.style.get_border();
let right_padding = (border_box.size.width - right_border - left_border).to_px();
let bottom_padding = (border_box.size.height - bottom_border - top_border).to_px();
let top_padding = top_border.to_px();
let left_padding = left_border.to_px();
let right_padding = (border_box.size.width - right_border.0 - left_border.0).to_px();
let bottom_padding = (border_box.size.height - bottom_border.0 - top_border.0).to_px();
let top_padding = top_border.0.to_px();
let left_padding = left_border.0.to_px();
match self.level {
Some(start_level) if level <= start_level => { self.is_child = false; }