Lazy load fonts in a FontGroup
The first commit message explains this so I'll just copy it here:
---
This is a step towards fixing #17267. To fix that, we need to be able to
try various different fallback fonts in turn, which would become
unweildy with the prior eager-loading strategy.
Prior to this change, FontGroup loaded up all Font instances, including
the fallback font, before any of them were checked for the presence of
the glyphs we're trying to render.
So for the following CSS:
font-family: Helvetica, Arial;
The FontGroup would contain a Font instance for Helvetica, and a Font
instance for Arial, and a Font instance for the fallback font.
It may be that Helvetica contains glyphs for every character in the
document, and therefore Arial and the fallback font are not needed at
all.
This change makes the strategy lazy, so that we'll only create a Font
for Arial if we cannot find a glyph within Helvetica. I've also
substantially refactored the existing code in the process and added
some documentation along the way.
---
I've added some tests in the second commit, but it required quite a bit of gymnastics to make it possible to write such a test. I'm not sure if the added complexity to the production code is worth it?
On the other hand, having this infrastructure in place may be useful for testing future changes in this area, and also possibly brings us a step closer to extracting a library as discussed in #4901. (What I mean by that is: it reduces coupling between `FontCacheThread` and `FontContext` -- the latter would have a place in such a library, the former wouldn't.)
Source-Repo: https://github.com/servo/servo
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I found some typo, so I fixed them.
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… no text)
This is my first layout fix and a naive approach to fix#18831.
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Source-Revision: ec8975b18d043fd0c97678b93d6e8f56c504cee7
It's kind of a mess. See individual commits for details.
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See #19676
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This feels more idiomatic in modern Rust, and replaces code like this:
`flow::base(&**root_flow).restyle_damage`
with this:
`root_flow.base().restyle_damage`.
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Source-Revision: 53968fef6112a3c934d527e4034d53b7a6174721
style: Make all keywords CamelCase for consistency.
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Source-Revision: b24778202a4d886a990ee493adfb6851ac4be40c
See #18809
Still haven't had time to test it but it should fix the tests failures that appeared in m-c
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Source-Revision: 2b03a9974c61d1481d4b40351ff1305ad0b26588
It still needs dependencies update to remove all the other bitflags
versions.
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Source-Revision: fe16c1d5c3c9084da0ccb85af599d6ec0f8ab20b
Casting `*const T` to `*const U` with `U: Sized` is allowed even if `T: ?Sized`. This safely extracts the data pointer out of a trait object, without relying on the memory representation of trait objects.
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Source-Revision: b2df99cb65a585907e59f70081c3b3c15317b11a
```
implement size hint for
more iterators because why
not we like fast things
```
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Source-Revision: bb2030a49314433c1b31f853e4fa50afa241b596
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Automatically verify that derive() lists are alphabetically ordered #18172
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This is a better approach than relying on
contains_positioned_fragments, because in the future other properties
will create absolute containing blocks.
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Source-Revision: 7806784eb4761bf9018d342d29594eb6c9058fc3
Various refactorings of the code for traversing flow trees, including:
* Add a generic inorder traversal method
* Remove unused `traverse_postorder_absolute_flows` method
* Combine `compute_absolute_position` and `build_display_list` into a single traversal
* Move all generic traversal code into the `layout::traversal` module
And some changes to add documentation and more-accurate names:
* Fix spelling of `bottom_up_flow`
* Rename `compute_absolute_position` to `compute_stacking_relative_position`
* Change the mis-named `traverse_flow_tree_preorder` to `reflow`
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Source-Revision: ed3c2b95573c355c11c99eb43320d604fc95a5e9
The `stylearc` alias is left there temporarilly and will be removed completely in a later commit/PR where also `components/style/gecko/generated/structs_{debug|release}.rs` are re-generated (they still use the old alias).
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Removed IS_ABSOLUTELY_POSITIONED from use flow::{self, BaseFlow, Flow, FlowClass, ForceNonfloatedFlag, IS_ABSOLUTELY_POSITIONED};
components/layout/inline.rs
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Source-Revision: 9c3c14cbd1a655748e2e2cce88d017f591ba6540
No need to do in-order traversal for children of InlineFlow, since
they are either inline-block or absolutely positioned elements, which
are guaranteed to be block formatting context.
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Source-Revision: 95bad3f33a9f0af9511011d4a83a9c95322784d5
std::ptr::eq and Arc::ptr_eq are now usuable, and we can replace a
panic!() with abort().
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Source-Revision: bb9391ba2cacc2976d546c42cb339fa3e7cbf35c
- [x] `./mach build -d` does not report any errors (kinda, need webrender published and Cargo.toml fixed up)
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Source-Revision: 18653f69581693a5bae1ce4e350e78bc16159b08
A single value sets the text-overflow on the _end_ of the text, not both start and end.
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Source-Revision: f3a694a7b442abad8af02475b944aeac7a09d539
Depends on https://github.com/servo/unicode-bidi/pull/27 , which
upgrades `unicode-bidi` crate to `0.3.0`.
Summary of changes:
* Use `unicode_bidi::Level` (instead of `u8`) in all relevant places and
replace magic computations with (inline) method calls to Level API.
* Doing so required adding `unicode-bidi` crate dependency to two more
components here: `style` and `gfx`. IMHO, totally makes sense, as
replaces local integer manipulations/checks with well-tested ones
already available in a common dependency.
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Source-Revision: edd6c2cecb2c245f9f8bcab04ff8e57f1c5d1333
This is on top of #15888. Only the second commit needs review.
We put the more recently used item last, so iterating then from left to right is
pointless.
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Source-Revision: 7fa4a94bb154449702e5ae9422c3008a5195c714
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According to https://github.com/servo/servo/pull/3069 the cached thread local context is introduced for green threads. Now green threads has gone, and the existence of cache force us to create a `LayoutContext`, an `AssignISizes` and an `AssignBSizes` for each flow during parallel layout, so the pull request tries to remove it. And it also switch `assign_inline_sizes()` to accept a `LayoutContext` parameter, as according to my current design we need to do full layout to some flex items for column flexbox during assign isize traversal.
Part of #14123.
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Source-Revision: c75946c3ed52d262aae585055023becd5a2e9769
This patch allows Servo to incrementally reflow truncated fragments correctly.
* The untruncated version of a fragment is preserved, and when incrementally reflowing, the untruncated version is what gets reflowed. If it needs truncated, it will get truncated again.
* The ellipsis fragments are skipped when incrementally reflowing a line. If it is still needed, it will be recreated.
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Collect scroll roots during the collect_stacking_context phase instead
of during display list construction. This will be useful in order to
collect containing block scroll roots as well as to give scroll roots
sequential ids in the future. This change also pulls stacking context
children out of the StackingContext struct itself, which should reduce
very slightly the memory used by the finished display list. This also
simplifies the DisplayListBuilder because it no longer has to maintain
a stack of ScrollRootIds and StackingContextIds and can instead just
rely on the program stack.
Source-Repo: https://github.com/servo/servo
Source-Revision: dabb79c7878fce31b8b979dd5fcfdfb8713a9d80
Style no forced docs for the properties code and similar, but I ran out of time, and I think it's a nice improvement.
I'd appreciate a fast-ish turn-around time because this is pretty much prone to bitrot.
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Source-Revision: bd67163438317daa711b2411ce302aaf5bf4136a
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cc @Manishearth
The lorem-ipsum example from MDN works as expected.
Source-Repo: https://github.com/servo/servo
Source-Revision: a91f48ee05933784630fdf918fc4b66037dba9f1
We need to hang both snapshots and restyle damage off of ElementData, and so we need them to be concrete to avoid infecting ElementData with the trait hierarchy.
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Migrated the trace-layout code from old `rustc-serialize` to `serde_json`. This will help us iterate faster on the layout viewer (#13432), #13436, #12675 and fix#12936.
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Source-Revision: 1c26f44cbb23e7da3b9d63f0223c8d5d43eec958
This creates a sharp distinction between `Arc<Flow>`s, which may be
owned by anyone, and `FlowRef`s, which may only be owned by the
traversal code. By checking the reference count, we ensure that a `Flow`
cannot be pointed to by `Arc`s and `FlowRef`s simultaneously.
This is not a complete fix for #6503, though it is a necessary start
(enforcing the no-aliasing rule of `FlowRef::deref_mut` will require far
more work).
---
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Source-Repo: https://github.com/servo/servo
Source-Revision: 3a3f3192a87dbcd5d05efb82a1f4dde23f9c4cf7
This removes paint threads, rust-layers dependency, and changes
optional webrender types to be required.
The use_webrender option has been removed, however I've left
the "-w" command line option in place for now so that wpt
runner can continue to pass that. Once it's removed from there
we can also remove the -w option.
Once this stage is complete, it should be fine to change the
display list building code to generate webrender display
lists directly and avoid the conversion step.
Source-Repo: https://github.com/servo/servo
Source-Revision: f96718d03da969510dc992699cb6f25c2e21ae1e
Clipping region computation now follows a simple process: (1) in the
parent's coordinate system, parents store appropriate clipping regions
into children; (2) each child moves its clipping region to its own
coordinate system if necessary.
Because clipping region computation is now based on stacking-relative
border box positions and the `transform_rect` method, it can handle
`position: relative` offsets and more types of transforms, such as
scaling.
Improves etsy.com.
Closes#13753.
Source-Repo: https://github.com/servo/servo
Source-Revision: c1abd8797c5b257c9339fbaf6ca4b7480c43a755
