Clear canvas thread state on recreation.
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The canvas rendering context is cleared when it is recreated, but not the matching state in the canvas paint thread.
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Clean up HTMLImageElement::handle_event
Area::hit_test now uses a reference instead of taking ownership
Fix trailing whitespace
Unalign => in match
Fix Area::hit_test tests to reflect updated function signature
Implement the InputEvent
Add WebIDL, from UI Events working draft.
Implement script type for event.
Note that actually firing InputEvents is not part of this commit.
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As part of my effort to improve [keyboard handling](https://groups.google.com/forum/#!topic/mozilla.dev.servo/e6R7eBDjo4M) it is necessary to introduce the InputEvent. While I have a working prototype using the input event this still needs a lot of work before it can be merged into servo.
cc @jdm
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Copied w3c css-paint-api wpt test suite into tests/wpt/mozilla
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As a stop-gap until #17416 lands, copy the css-paint-api wpt tests into the mozilla directory.
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Add support for subgrids and fix some other grid properties
This covers the `subgrid <line-name-lists>?` for `grid-template` (for gecko, and hence, stylo).
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Don't return window proxy if it has been discarded
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tests: Rename privatize.rs to deny_public_fields.rs
Privatize is no longer mentioned in the codebase, as of 8bcf36b9a5, so
rename the relevant test to avoid confusion.
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Use a binding's field identifier to produce more descriptive output.
Fall back to a binding's identifier if a field identifier is not
available.
Additionally, make the privatize.rs compiletest more specific and
wrap the identifier in backticks to aid readability.
Custom element creation
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This implements the CE-related steps when creating elements. `is` is now support by `document.createElement` and is stored on `Element`s. Only synchronously created autonomous elements are supported as async element creation and customized built-in elements both require custom element upgrade reactions.
Spec: https://dom.spec.whatwg.org/#concept-create-element
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Force HTMLStyleElement to create a new CSSStyleSheet when re-parsing.
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- [X] These changes do not require tests because I'm pushing to find out what test results this changes; this is part of a series of PRs to fix bug #17182
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Re-enabled iframe-append-to-child-document.html
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Re-enabled a WPT test. Don't get too excited, the test FAILs.
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Added exception-handling to worker wpt tests.
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Added exception-handling to worker wpt tests.
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Fix several bugs related to scrolling
* scrollLeft/scrollTop returned values of parent or even document root
Only the scroll of the node itself is returned. Otherwise 0.0.
* Scrolling via script had set viewport.
This resulted in other nodes appearing scrolled.
Now scroll_offsets are updated with correct node id.
These bugs caused other odd behavior like both body and
document.documentElement being scrolled or the view for scrolled
elements jumping.
Also try scrolling this [example page](https://pyfisch.org/stuff/scrolltest.html) in servo with and without this change.
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We already call Document::invalidate_style_sheets and set
the stylesheet member to a new Stylesheet. This matches the behavior of
Firefox, and means the new CSSStyleSheet you get from accessing .sheet
from JS will be correct instead of stale.
(::get_cssom_stylesheet already tries to use the new Stylesheet, but
MutNullableJS::or_init is called, so if we already created a
CSSStyleSheet we will continue to return that one).
