#8539 Config preferences backend restructure
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A procedural macro for generating static structures for use as the backend for config preferences, as well a mapping from string names to accessors.
Preferences can be accessed and updated via a map-like interface with `String` keys, and now also via a convenience macro: `get_pref!(path.to.pref)`. Various `serde`-compatible field attributes are also supported, including renaming the string keys. This could be useful when changing the backend structure without breaking existing usages.
I have added the choice to use `i64` as well as `f64` for storing numbers. As it turns out, none of the existing preferences used non-integer values. Setting a floating point value from a command-line argument requires a decimal point in order to parse correctly.
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I have a few outstanding problems or questions:
1. I am unable to get rid of this warning:
```
warning: unnecessary path disambiguator
--> components/config/prefs.rs:130:51
|
130 | accessor_type = crate::pref_util::Accessor::<Prefs, crate::pref_util::PrefValue>,
| ^^ try removing `::`
```
See: https://stackoverflow.com/questions/54710797/how-to-disable-unnecessary-path-disambiguator-warning
2. Several of the preferences in use were not represented in `prefs.json`. Some of these may be in error, but it is hard to tell. For example `js.offthread_compilation.enabled` vs `js.ion.offthread_compilation.enabled` could be different preferences or could be intended to have the same value.
3. Previously, several pieces of code provided default values when accessing a preference that may not be present. For example:
```Rust
let DBL_CLICK_TIMEOUT = Duration::from_millis(
PREFS
.get("dom.document.dblclick_timeout")
.as_u64()
.unwrap_or(300),
);
```
Fallback values don't really make sense now and I've added these defaults to `prefs.json`. Does this sound right?
4. I have kept `PrefValue::Missing`, though it doesn't seem very useful any more. An error might be more appropriate now for an incorrect preference key. I've kept this partly because [`webdriver_server` uses it](https://github.com/servo/servo/blob/master/components/webdriver_server/lib.rs#L224).
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Update StyleSheet.insertRule WebIDL to make index optional.
Update wpt metadata to show the new passes.
Add one test as crashing since currently passing an \@import rule to insertRule
leads to "Expected a stylesheet loader for \@import"
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- [x] ./mach test-wpt css/cssom passes with these changes
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Implement CDATASection interface and createCDATASection method
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Assert fail #18439
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This PR addresses #18439 by removing an assert statement that forces a panic whenever `LoadBlocker` is dropped during a GC sweep and receives a `None` `SCRIPT_THREAD_ROOT` value from `mark_document_with_no_blocked_loads()`. Instead of panicking on the assert, we remove it and let the None value pass silently.
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Remove 'on' prefix from event handler macros
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Remove 'on' prefix from event handler macros
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- removed unused import in document_loader.rs
- limit unsafe block in mark_document_with_no_blocked_loads in script_thread.rs
- changed name of if let value to load in Drop for LoadBlocker in document_loader.rs
Update wpt metadata to show the new passes.
Add one test as crashing since currently passing an @import rule to insertRule
leads to "Expected a stylesheet loader for @import"
Fixes#23025
Remove pipeline visibility checks
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This includes the following changes/clean-ups:
- Remove ```is_visible``` field from ```Pipeline``` struct
- Remove ```SetVisible``` script message, and related message sending/handling.
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Implement WebDriver FindElementFromElement command
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In BC event-loop, only run tasks related to fully-active documents
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Simplify VideoTrackList::set_selected
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Make blank target imply noopener, implement "opener" link type
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Remove an unnecessary synchronous full reflow.
We already reflow any nodes that are dirtied during any turn of the event loop. There is no reason to synchronously reflow the entire document, especially when we don't even modify it in this method.
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Fix replacement logic when navigating nested browsing contexts
These changes also fix a bug where traversing the session history in a nested browsing context did not update the iframe's contentWindow appropriately.
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