Don't mark the first/last fragment of an {ib} split as FIRST/LAST_FRAGMENT_OF_ELEMENT.
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This change allows inline margins, borders, and padding to interact correctly with {ib} splits.
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Instead annotate all flows with their owning ScrollRoots. When
processing the display list items into a flattened display list, we add
PushScrollRoot and PopScrollRoot to signal when scrolling regions start
and end. It is possible for content from different scrolling regions to
intersect and when they do, the stack of scrolling regions is
duplicated. When these duplicated scrolling regions stacks reach
WebRender, it will scroll them in tandem.
The PushScrollRoot and PopScrollRoot items are currently represented as
StackingContexts in WebRender, but eventually these will be replaced
with special WebRender display items.
Fixes#13529.
Fixed#13298.
Implement matchMedia and MediaQueryList
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Fixes#13376.
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Remove stacking context nesting from WebRender display construction
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It's an intermittent failure, that has become a permanent timeout when
trying to land a webrender update. The test loads a very large # of
images so I suspect some kind of race condition in the image loading
or reftest image framework.
border box positions and transforms into account.
Clipping region computation now follows a simple process: (1) in the
parent's coordinate system, parents store appropriate clipping regions
into children; (2) each child moves its clipping region to its own
coordinate system if necessary.
Because clipping region computation is now based on stacking-relative
border box positions and the `transform_rect` method, it can handle
`position: relative` offsets and more types of transforms, such as
scaling.
Improves etsy.com.
Closes#13753.
fragments if `overflow` is not `visible` per CSS 2.1 § 10.8.1.
Additionally, this patch reverts the change introduced in #12642 in
favor of the spec-compliant behavior described above. This patch also
removes the `inline_block_overflow.html` reftest introduced in #3725, as
the behavior it expected contradicted CSS 2.1 (and in fact the test
fails in Gecko).
The changes that this patch makes to `input_selection_a.html` and
`input_selection_incremental_a.html` are necessary workarounds to make
the tests pass in light of the fact that Servo's UA stylesheet applies
`overflow: hidden` to `<input>` elements. I believe that the changes are
not necessary in other rendering engines because they hard-code
`overflow: hidden`-like behavior for `<input>` elements, while Servo
uses the actual CSS `overflow: hidden` behavior. As far as I can tell,
Servo's behavior is arguably more spec-compliant, but it remains to be
seen how Web compatible it is.
Improves the Google results pages.
Closes#13707.
10.8, and implement `vertical-align: middle` per CSS 2.1 § 10.8.1.
`InlineMetrics` has been split into `InlineMetrics` for fragments and
`LineMetrics` for lines. Both structures' fields have been renamed in
order to more clearly delineate the difference between *space* and
*content*. Vertical positioning of fragments has been reworked to take
margins and borders into account only for replaced content.
This patch fixes the `vertical_align_super_a.html` reftest. Servo now
matches the rendering that Gecko and WebKit produce.
Additionally, this includes a test for the popular inline-block
centering technique described here:
https://s.codepen.io/shshaw/fullpage/gEiDt?#Inline-Block
Implement sequential fallback to float speculation
This shouldn't impact any pages that are already rendering correctly, but it is a very naive implementation of this pass.
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Style input-text pseudo with user-agent CSS
This changes the input-text pseudo-element to be styled with user-agent CSS rather than having a hard-coded style, as part of #8570
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Account for percentages in fixed table layout
Don't just use the minimum length all the time.
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Move collapse through margin to the top of block flow
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Based on the spec, a collapse through box should be put on the top edge of the flow. This fixed ~110 reftests
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Handle row borders in border collapsing logic.
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Handle table row border when collapsing borders for a table row. The row border is combined with the cell's border using the already implemented conflict resolution logic.
This is a screenshot of the following test:
```html
<!doctype html>
<html><body>
<style>
table {
border-collapse: collapse;
}
tr {
border: 1px solid black;
}
</style>
<table>
<tr><td>Lorem</td><td>Ipsum</td><td>Sit</td><td>Dolor</td></tr>
<tr><td>Lorem</td><td>Ipsum</td><td>Sit</td><td>Dolor</td></tr>
<tr><td>Lorem</td><td>Ipsum</td><td>Sit</td><td>Dolor</td></tr>
<tr><td>Lorem</td><td>Ipsum</td><td>Sit</td><td>Dolor</td></tr>
</table>
</body>
</html>
```
<img src="https://dl.dropboxusercontent.com/u/10962672/Screenshots%20Servo/servo_tr_border_collapse.png"/>
The top border is missing, but I think that's a different bug, since it also does not show up when the border is in the cells, and not the rows. Also, when debugging the border collapsing structures, they seem ok (the top border seems to be there). I can look at that bug in a separate issue (or in this one too if you prefer).
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Fixes#11527.
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Fix wrong calculation of inline element's block size
Border, padding and margin properties' top and bottom values of inline elements were affecting the element's height. It shouldn't affect it normally. Fixed it and added a test.
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This was the underlying cause of the restyle_hints_state.html failure.
It was uncovered only when fixing the HAS_EDGE_CHILD_SELECTOR flags because this
was the series of events happening.
* <script> starts executing.
* All the restyle hint processing takes place.
* <script> ends executing, gets appended to the body (I think this is also a bug).
* <body> receives children_changed notification, with an Append mutation.
* <body> had the HAS_EDGE_CHILD_SELECTOR flag, so due to its bogus value, it
restyled the whole tree after <body>, fixing any mishandling of restyle
hints.
