This is needed to support min() / max() / clamp(), etc, as those need to be a
tree of values and thus need heap storage.
This unfortunately grows LengthPercentage to be two pointers, which is bad as
it blows up the size of nsStylePosition enough to trigger the size assertions.
This patch comments out the assertion for now, the follow-up patches will
uncomment them.
Differential Revision: https://phabricator.services.mozilla.com/D58700
It is unexpected (see bug) that a -moz-box is affected by baseline alignment.
Make -moz-box be block-outside, and -moz-inline-box be inline-outside, instead
of the bespoke thing we have now.
This is more similar to everything else, and fixes the bug.
Differential Revision: https://phabricator.services.mozilla.com/D58726
This cleans up and also allows us to keep the distinction between content: none
and content: normal, which allows us to fix the computed style we return from
getComputedStyle().
Do this last bit from the resolved value instead of StyleAdjuster, because
otherwise we need to tweak every initial struct for ::before / ::after.
Differential Revision: https://phabricator.services.mozilla.com/D58276
Do the same we do for classes for now. We could be more precise and achieve a
bit more sharing with some more effort (left a comment there), but it seems
unlikely to matter in practice (and if we did that, we'd probably want to do the
same for classes).
Differential Revision: https://phabricator.services.mozilla.com/D58453
This matches the new servo layout engine too, and thus removes some #[cfg]
gunk. Just use `flow` since it doesn't simplify the layout code as much.
Differential Revision: https://phabricator.services.mozilla.com/D45973
Initial implementation of GPUComputePipeline
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Added WebIDL bindings for `GPUComputePipeline`.
Implemented the `createComputePipeline` function of `GPUDevice`.
This pull request is based on: #25677
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Add support for some basic queries to layout_2020
These queries will make it easier to track progressions in the layout_2020 code.
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Filter file: and about: responses opaquely
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file: and about: schemes were being treated like data: for cors purposes, when in fact they should have been subject to opaque response filtering. A comment indicated that this was necessary for some CSS tests, but I think the comment was out of date; the only tests depending on the unfiltered responses are unit tests that do not test any CSS functionality. I've updated those tests to now test for the opaque-filtering itself.
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Initial implementation of GPUShaderModule
Added WebIDL bindings for `GPUShaderModule`.
Implemented the `createShaderModule` function of `GPUDevice`.
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Make CanvasRenderingContext2D.createPattern() return null for incomplete images
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`createPattern()` should return `null` if the passed `image` argument is not usable.
References:
- https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-createpattern
- https://html.spec.whatwg.org/multipage/canvas.html#check-the-usability-of-the-image-argument
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Improve position:fixed support in layout_2020
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This makes it so that position:fixed elements do not scroll with the
rest of the contents, but does not tackle the rest of the issues with
their positioning.
Improve the name the NodeGeometryQuery
This query is used to get the clientTop, clientWidth, clientHeight,
clientLeft properties of DOM objects. "NodeGeometry" doesn't really
capture what these properties do as they often are returning the width
of an element's border.
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Make HTMLFormControlsCollection rooted at the form's root, not rooted at the form itself
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We'd been misreading the first line of https://html.spec.whatwg.org/#dom-form-elements. The collection needs to be rooted higher than the form itself, so it can contain form controls elsewhere in the document with a form= content attribute. It is, as far as I can tell, unspecified whether "rooted at the form's root" is meant to live-update to a new root if the form is moved to another tree, and I'm assuming it doesn't have to.
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Add usability checks to CanvasRenderingContext2D.drawImage()
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These changes add the usability checks performed on an image to be drawn to the canvas.
References:
- https://html.spec.whatwg.org/multipage/canvas.html#drawing-images
- https://html.spec.whatwg.org/multipage/canvas.html#check-the-usability-of-the-image-argument
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Let EventSource fail fast on bad schemes
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EventSource went into an infinite reconnect loop in some cases where tests wanted it to go into a hard error state; this addresses the cases where that happens because the url isn't even http(s) and will thus definitely never result in an event stream.
https://github.com/web-platform-tests/wpt/issues/4311 suggests the tests might just be too picky here; the spec does use the word "may" on relevant behavior.
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Expose DOMHighResTimeStamps at lower res
As explained in https://www.w3.org/TR/hr-time-2/#clock-resolution and tested in a few WPT tests, we're not supposed to show Javascript the full resolution of OS timestamps. This fixes that on all the DOMHighResTimeStamp interfaces that weren't already limiting themselves to integer milliseconds.
The specific choice of how to coarsen the resolution is extremely bikesheddable; I commented the reasoning for my arbitrary choice but I admit it's arbitrary.
A couple tests of timing resolution still fail, but because they're seeing undefined and NaN values due to unimplemented attributes (#25658).
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Mechanism to allow Servo to prompt the user
This blocks the embedder thread (compositor thread). Not ideal. I don't think it's too much work to only block script, I'll do that in a follow up bug.
Fix#23376
@Manishearth we have a few new APIs. Hopefully this will cover your needs. A thing I haven't implemented yet is a way to ask the user to pick from a list. Let me know if it's something you'll need.
Remove dependency of constellation on canvas
move `ConstellationCanvasMsg` to canvas_traits and start canvas paint thread
to components/servo. This, however, does not remove dependency for conditional
compilation options.
5f55cd5d71/components/constellation/Cargo.toml (L13-L15)
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move `ConstellationCanvasMsg` to canvas_traits and start canvas paint thread
to components/servo. This, however, does not remove dependency for conditional
compilation options.
This query is used to get the clientTop, clientWidth, clientHeight,
clientLeft properties of DOM objects. "NodeGeometry" doesn't really
capture what these properties do as they often are returning the width
of element border.
Update user agent info
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GitHub is again giving warnings in Servo due to using an outdated Firefox version in the user agent string. This updates the version numbers as well as the OS versions to the latest supported releases.
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Add support for overflow:scroll and overflow:hidden to layout_2020
This adds clipping and interactive scrolling support, but scrolling from
script is still not functional.
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Do not include request progress/total values on XHR timeout
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Do not include request progress/total values on XHR timeout as [the specification]( https://xhr.spec.whatwg.org/#request-error-steps) states that upload events when errors occur should always pass 0 for both values.
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