selectors: Simplify :visited by only using the "is inside link" information.
Right now we go through a lot of hoops to see if we ever see a relevant link.
However, that information is not needed: if the element is a link, we'll always
need to compute its visited style because its its own relevant link.
If the element inherits from a link, we need to also compute the visited style
anyway.
So the "has a relevant link been found" is pretty useless when we know what are
we inheriting from.
The branches at the beginning of matches_complex_selector_internal were
affecting performance, and there are no good reasons to keep them.
I've verified that this passes all the visited tests in mozilla central, and
that the test-cases too-flaky to be landed still pass.
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Right now we go through a lot of hoops to see if we ever see a relevant link.
However, that information is not needed: if the element is a link, we'll always
need to compute its visited style because its its own relevant link.
If the element inherits from a link, we need to also compute the visited style
anyway.
So the "has a relevant link been found" is pretty useless when we know what are
we inheriting from.
The branches at the beginning of matches_complex_selector_internal were
affecting performance, and there are no good reasons to keep them.
I've verified that this passes all the visited tests in mozilla central, and
that the test-cases too-flaky to be landed still pass.
Defend against bugs in SelectorFlagsMap
Some defensive programming:
* Make `SelectorFlagsMap::apply_flags` private so it's easier to ensure it is called from the correct thread.
* Clear the cache and the map at the same time; otherwise `apply_flags` leaves `SelectorFlagsMap` in an inconsistent state.
---
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- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because they do not change behavior
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* Make `SelectorFlagsMap::apply_flags` private so it's easier to ensure
it is called from the correct thread.
* Clear the cache and the map at the same time; otherwise it leaves
`SelectorFlagsMap` in an inconsistent state.
Improve LRU cache behavior in SelectorFlagsMap
This code used to insert duplicate entries to avoid expensive shuffling of the LRU cache. With uluru this is no longer necessary, because reordering the cache is cheap.
Now it uses the `LRUCache::find` method from uluru 0.2 to update entries in-place. This should increase cache hits by eliminating unnecessary evictions.
This PR also updates `arrayvec` because `uluru` depends on it, and `immeta` because it depends on `arrayvec`.
---
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- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because they don't change behavior
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Print url of recorded PWM
This makes it a bit easier to compare results with other browsers.
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- [X] `./mach test-tidy` does not report any errors
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This code used to insert duplicate entries to avoid expensive shuffling
of the LRU cache. With uluru this is no longer necessary, because
reordering the cache is cheap.
Now it uses the `LRUCache::find` method from uluru 0.2 to update entries
in-place. This should improve the hit rate, because it eliminates
unnecessary evictions.
Fix float conversion of paint timing metrics
This is a follow up of #19077
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- [X] `./mach test-tidy` does not report any errors
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Remove support for <input type=datetime>
It has been removed from the spec: https://github.com/whatwg/html/issues/336
See also https://github.com/servo/servo/pull/19471#pullrequestreview-80711878
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Expand InputType to cover all possible types
This came out of a conversation with nox in IRC:
https://mozilla.logbot.info/servo/20171201#c13946454-c13946594
The code I was working on which motivated this change is here:
https://github.com/servo/servo/pull/19461
Previously, InputType::Text was used to represent several different
values of the type attribute on an input element.
If an input element doesn't have a type attribute, or its type attribute
doesn't contain a recognised value, then the input's type defaults to
"text".
Before this change, there were a number of checks in the code which
directly looked at the type attribute. If those checks matched against
the value "text", then they were potentially buggy, since an input with
type=invalid should also behave like an input with type=text.
Rather than have every conditional which cares about the input type also
have to deal with invalid input types, we can convert the type attribute
to an InputType enum once, and then match against the enum.
A secondary benefit is that the compiler can tell us whether we've
missed branches in a match expression. While working on this I
discovered that the HTMLInputElement::value_mode() method misses a case
for inputs with type=hidden (this resulted in a failing WPT test
passing).
I've also implemented the Default trait for InputType, so we now only
have one place in the code which knows that InputType::Text is the
default, where previously there were several.
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This came out of a conversation with nox in IRC:
https://mozilla.logbot.info/servo/20171201#c13946454-c13946594
The code I was working on which motivated this change is here:
https://github.com/servo/servo/pull/19461
Previously, InputType::Text was used to represent several different
values of the type attribute on an input element.
If an input element doesn't have a type attribute, or its type attribute
doesn't contain a recognised value, then the input's type defaults to
"text".
Before this change, there were a number of checks in the code which
directly looked at the type attribute. If those checks matched against
the value "text", then they were potentially buggy, since an input with
type=invalid should also behave like an input with type=text.
Rather than have every conditional which cares about the input type also
have to deal with invalid input types, we can convert the type attribute
to an InputType enum once, and then match against the enum.
A secondary benefit is that the compiler can tell us whether we've
missed branches in a match expression. While working on this I
discovered that the HTMLInputElement::value_mode() method misses a case
for inputs with type=hidden (this resulted in a failing WPT test
passing).
I've also implemented the Default trait for InputType, so we now only
have one place in the code which knows that InputType::Text is the
default, where previously there were several.
Sometimes, we got a crash message:
"called `Result::unwrap()` on an `Err` value: FailedAllocationError {
reason: "out of memory when allocating RawTable" }" on stylo, but
this is not enough to debug, so let's add one more field in
FailedAllocationError, so we can know the size we are allocating.
style: Add internal overflow-clip-box-block/-inline properties and make overflow-clip-box a shorthand.
These are the changes from bug 1422839. First commit is reviewed by me, the second is a fixup to that.
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use entry global's origin in `is_origin_clean` check for canvas rendering
use entry global's origin in `is_origin_clean` check for canvas rendering
There is no change with:
```
./mach test-wpt tests/wpt/web-platform-tests/2dcontext
./mach test-wpt tests/wpt/web-platform-tests/html/semantics/embedded-content/the-canvas-element
```
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- [X] These changes fix #19480 (github issue number if applicable).
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stylo: Implement FontFaceSet and Font Descriptors parsers
This is the inter-dependent patches for Bug 1408303. We implement the FFI for the
parsers of font descriptors and FontFaceSet APIs.
---
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- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix [Bug 1408303](https://bugzilla.mozilla.org/show_bug.cgi?id=1408303).
- [X] These changes do not require tests because this is for Gecko and we have tests there.
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According to the spec, this parser should follow what we do for
@font_face rule, so we use the same type to parse the input, instead of
using the parser of their specified values.
Prevent an unused import warning on non desktop platforms
opts is not used on Android for instance.
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