Closed
Conversation
Don't preload italic font faces because they aren't used on all pages, and when they are used, they are used sparingly so it's okay if they are slower to load.
jsha
added
T-rustdoc
Contributor
|
(rust-highfive has picked a reviewer for you, use r? to override) |
rust-highfive
added
the
S-waiting-on-review
Collaborator
|
The job Click to see the possible cause of the failure (guessed by this bot) |
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Nov 24, 2021
…eGomez Fix toggle-click-deadspace rustdoc-gui test In rust-lang#91103 I introduced a rustdoc-gui test for clicks on toggles. I introduced some documentation on a method in lib2/struct.Foo.html so there would be something to toggle, but accidentally left the test checking test_docs/struct.Foo.html. That caused the test to reliably fail. I'm not sure how that test got past GitHub Actions and bors, but it's manifesting in test failures at rust-lang#91062 (comment) and rust-lang#91170 (comment). This fixes by pointing at the right file. r? `@GuillaumeGomez`
Contributor
Author
|
@GuillaumeGomez ping on this. :-) |
Member
|
This is indeed much nicer, thanks a lot! @bors: r+ |
Collaborator
|
📌 Commit 4198fac has been approved by |
bors
added
S-waiting-on-bors
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Dec 3, 2021
rustdoc: preload fonts Follow-up from rust-lang#82315. I noticed that font loading was so slow that even when loading from local disk, we get a flash of unstyled text (FOUT) followed by a reflow when the fonts load. With this change, we reliably get the appropriate fonts in the first render pass when loading locally, and we get it some of the time when loading from a website. This only preloads woff2 versions. According to https://caniuse.com/?search=preload and https://caniuse.com/?search=woff2, all browsers that support preload also support woff2, so this is fine; we will never load two copies of a font. Don't preload italic font faces because they aren't used on all pages. Demo: https://rustdoc.crud.net/jsha/preload-fonts/std/string/struct.String.html
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Dec 3, 2021
rustdoc: preload fonts Follow-up from rust-lang#82315. I noticed that font loading was so slow that even when loading from local disk, we get a flash of unstyled text (FOUT) followed by a reflow when the fonts load. With this change, we reliably get the appropriate fonts in the first render pass when loading locally, and we get it some of the time when loading from a website. This only preloads woff2 versions. According to https://caniuse.com/?search=preload and https://caniuse.com/?search=woff2, all browsers that support preload also support woff2, so this is fine; we will never load two copies of a font. Don't preload italic font faces because they aren't used on all pages. Demo: https://rustdoc.crud.net/jsha/preload-fonts/std/string/struct.String.html
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Dec 3, 2021
…askrgr Rollup of 10 pull requests Successful merges: - rust-lang#88906 (Implement write() method for Box<MaybeUninit<T>>) - rust-lang#90269 (Make `Option::expect` unstably const) - rust-lang#90854 (Type can be unsized and uninhabited) - rust-lang#91170 (rustdoc: preload fonts) - rust-lang#91273 (Fix ICE rust-lang#91268 by checking that the snippet ends with a `)`) - rust-lang#91381 (Android: -ldl must appear after -lgcc when linking) - rust-lang#91453 (Document Windows TLS drop behaviour) - rust-lang#91462 (Use try_normalize_erasing_regions in needs_drop) - rust-lang#91474 (suppress warning about set_errno being unused on DragonFly) - rust-lang#91483 (Sync rustfmt subtree) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
Collaborator
|
☔ The latest upstream changes (presumably #91486) made this pull request unmergeable. Please resolve the merge conflicts. |
bors
added
S-waiting-on-author
Member
|
This has been merged into master by bors (in #91486), but GitHub didn't detect it for whatever reason. Closing. |
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Nov 7, 2023
…GuillaumeGomez rustdoc: stop preloading Source Serif 4 Bold According to rust-lang#91170, italic fonts are not preloaded because they're rarely used, but bold fonts are. This seems to be true of bold Source Code Pro and bold Fira Sans, but bold and italic Source Serif Pro seem to be equally heavily used. This is, I assume, the result of using Fira Sans Bold and Source Code Bold headings, so you only get bold Serif text when the doc author uses strong `**` emphasis (or within certain kinds of tooltip, which shouldn't be preloaded because they only show up long after the page is loaded). To check this, run these two commands in the browser console to measure how much they're used. The measurement is extremely rough, but it gets the idea across: the two styles are about equally popular. // count bold elements Array.prototype.slice.call(document.querySelectorAll("*")).filter(x => { const y = document.defaultView.getComputedStyle(x); return y.fontFamily.indexOf("Source Serif 4") !== -1 && y.fontWeight > 400 }).length // count italic elements Array.prototype.slice.call(document.querySelectorAll("*")).filter(x => { const y = document.defaultView.getComputedStyle(x); return y.fontFamily.indexOf("Source Serif 4") !== -1 && y.fontStyle == "italic" }).length | URL | Bold | Italic | |--------------|-----:|-------:| | [std] | 2 | 9 | | [Vec] | 8 | 89 | | [regex] | 33 | 17 | | [test_suite] | 0 | 0 | [std]: https://doc.rust-lang.org/nightly/std/index.html [Vec]: https://doc.rust-lang.org/nightly/std/vec/struct.Vec.html [regex]: https://docs.rs/regex/1.9.5/regex/index.html [test_suite]: https://docs.rs/test-suite/3.2.9/test_suite/
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
7 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Follow-up from #82315.
I noticed that font loading was so slow that even when loading from local disk, we get a flash of unstyled text (FOUT) followed by a reflow when the fonts load. With this change, we reliably get the appropriate fonts in the first render pass when loading locally, and we get it some of the time when loading from a website.
This only preloads woff2 versions. According to https://caniuse.com/?search=preload and https://caniuse.com/?search=woff2, all browsers that support preload also support woff2, so this is fine; we will never load two copies of a font.
Don't preload italic font faces because they aren't used on all pages.
Demo: https://rustdoc.crud.net/jsha/preload-fonts/std/string/struct.String.html