Support SVG element
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minimal SVG element implementation
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Honor SERVO_ENABLE_DEBUG_ASSERTIONS on the build machines.
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As part of #13127.
cc @aneeshusa
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It's not possible to implement a Ref::map equivalent method on AtomicRefCell
while having AtomicRefCell implemented on top of RwArc. We could potentially
reimplement AtomicRefCell to be more like RefCell and add a Ref::map equivalent
method, but I (and pcwalton) think we should try just cloning a few extra
Arcs at these callsites instead.
MozReview-Commit-ID: 6H8vAWguO3z
Otherwise we might mix writing modes. Not totally sure this change is correct in
the case we're mixing them, we might need to just not checking that operation.
Implement `word-break: keep-all` (#9673)
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Implement the `keep-all` value for the `word-break` property, as specified in [CSS](https://drafts.csswg.org/css-text-3/#word-break-property).
The relevant CSSWG tests (in `tests/wpt/css-tests/css-text-3_dev/html/word-break-keep-all-*.htm`) do not currently pass. As far as I can tell, this is because the tests use some JavaScript code that is not working properly. (But then, it seems that most tests in this directory are failing at the moment. I'm not sure what can be done here for now.)
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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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Simplify stacking context collection
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Simplify the way that stacking contexts are collected. Instead of
passing the StackingContextId down the tree, pass the parent
StackingContext itself. This will allow future patches to get more
information about the parent stacking context (such as location).
Also remove the return value of collect_stacking_contexts, which was
unused.
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layout: Improve the interaction between baseline-offset-of-last-line-in-flow logic and inline absolute hypothetical boxes.
See commits for details. These changes place the heart icon on Twitter in the right place.
r? @notriddle
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and an inline flow has no applicable lines, continue checking previous
sibling flows.
Improves Twitter by placing the favorite icon in the right place.
Simplify the way that stacking contexts are collected. Instead of
passing the StackingContextId down the tree, pass the parent
StackingContext itself. This will allow future patches to get more
information about the parent stacking context (such as location).
Also remove the return value of collect_stacking_contexts, which was
unused.
layout: Make some major improvements to incremental layout to improve CNN.
CNN is still too slow to be usable, but this is a partial solution.
r? @notriddle (feel free to reassign if you like)
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Separating out `REPOSITION` from `REPAINT` allows us to compute
stacking-context-relative positions without rebuilding the display list.
This saves a lot of time when responding to script-to-layout queries.
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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This updates webrender to include the webgl related changes
needed for this patch. There was an additional commit in
webrender before these landed, so also copy the shaders
for that change across. There is an interface change to
webrender push_image. For now, just pass zero, which is a
no-op to this function. A follow up commit will introduce
the servo specific changes to use this new interface.
sizes if the block formatting contexts have negative margins.
The heuristics that determine how and whether floats flow into the
margins are not valid in that case.
Closes#13299.
Create separate layout trace file for each reflow
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Currently only the layout trace from the last reflow is dumped to the file. But the interesting reflow may not be the last one. So we are dumping each of them with filename `layout_trace-{generation}.json`.
This will be used by a GUI viewer to visualize the layout process, which I will check-in later.
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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 root flow's size at the browser window's size
When `<body>` needs to calculate its size based on `<html>`'s size, that should be the size of the browser window itself.
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