Avoid panic when reloading a page with mouse event handlers
This PR fixes issue #16057, by nullifying `topmost_mouse_over_target` inside of the `handle_exit_pipeline_msg` method, in case owner document is the same as the pipeline document that is being destroyed.
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
Testing was done manually, by running `./mach run (-r|-d) "http://localhost:8000/minimal.html" `, where `minimal.html` contains `<div onmouseover="location.reload()" onmouseout="this.clientLeft">hi there</div>`.
r?@jdm
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This commit also removes the old restyle_hints module and splits it into
multiple modules under components/style/invalidation/element/.
The basic approach is to walk down the tree using compound selectors as needed,
in order to do as little selector-matching as possible.
Bug: 1368240
MozReview-Commit-ID: 2YO8fKFygZI
This patch renames TNode::parent_element to traversal_parent, since it returns
the parent from the perspective of traversal (which in Gecko uses the
flattened tree). It also renames TNode::children to traversal_children
for the saem reason.
We keep parent_element and children functions on TNode to use for selector
matching, which must be done on the real DOM tree structure.
Removed root browsing context from constellation
<!-- Please describe your changes on the following line: -->
Removed the special root browsing context from the constellation.
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Count number of braces on a line when checking spec links in test-tidy
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Allow more than one brace per line when checking spec links in test-tidy.
We had problems caused by `if unsafe { ... } {`.
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- [X] These changes have tests.
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The pref `webgl.testing.context_creation_error` will cause creation of a new WebGLRenderingContext to fail, iff set to true.
Also update test expectation of `context_creation_error.html` to pass.
Implement custom element registry
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Implements https://html.spec.whatwg.org/multipage/#customelementregistry
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This file has become quite bloated lately. This commit deletes that file in
favor of a set of submodules.
The only noticeable change apart from code move, is converting deep_clone_foo
methods into a trait.
It also unifies logic related to different style rules in the same place.
There's some missing work, specially related to font-face and counter-style, but
I think this is worth landing in the meantime.
Redirect document loads manually
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- [X] These changes fix#14596 .
r? @jdm
I ran some tests at random from the `navigating-across-documents` folder, and they are passing.
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Based on a link's active state and the visited handling mode, pull in link,
vlink, and alink preshint declaration blocks from Gecko as needed.
MozReview-Commit-ID: A6udMYbzQnK
Bring back clipboard support
Brings back clipboard support.
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- [x] These changes fix#17065
- [x] These changes fix#12805
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Implement "update the image data"
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Spec compliant implementation of the [update the image data algorithm](https://html.spec.whatwg.org/multipage/embedded-content.html#update-the-image-data).
Currently still a work in progress, the ['async src complete test`](https://github.com/servo/servo/blob/master/tests/wpt/web-platform-tests/html/semantics/embedded-content/the-img-element/img.complete.html#L33) is still passing as it was before, even though I switched to the new code, so I guess that's something.
@jdm I will be picking this up next weekend, I left a bunch of TODO and NOTES in the code, if you or someone else have time this week I would appreciate an initial scan and feedback.
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- [ ] These changes fix#11517 (github issue number if applicable).
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Webdriver browsing contexts not pipelines
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At the moment, a webdriver session stores a `pipeline_id`s, which causes a mismatch with the spec, which asks a session to store a browsing context and a top-level browsing context. This PR fixes this mismatch.
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