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Browse Mode: Remove horizontal scrollbar during screen transitions #51189

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andrewserong
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@andrewserong andrewserong commented Jun 2, 2023

What?

Remove the overflow-x: unset; rule for the browse mode sidebar content, as it resulted in horizontal scrollbars appearing during screen transitions in browsers that are set to always display scrollbars.

Why?

To improve how it feels to navigate between screens on browsers / OSes that are set to always display scrollbars

How?

  • Remove the overflow-x: unset; rule for the sidebar content

Testing Instructions

Set your OS's accessibility settings to always show scrollbars (if on a Mac). Here's how it looks in Monterey:

image
  1. Open up the site editor browse mode and navigate between screens. Without this PR applied, you'll sometimes see a horizontal scrollbar at the bottom — it's most noticeable when going to the Template screen
  2. With this PR applied there should be no scrollbar

A question for the reviewer: was this rule needed? Will this removal break anything? I see the rule was added in #45100 by @oandregal, but removing it doesn't immediately appear to break anything, but I might have missed something!

Screenshots or screencast

Look for the flash of horizontal scrollbar during screen transitions below:

Before After
2023-06-02 14 52 38 2023-06-02 14 53 19

@andrewserong andrewserong added [Type] Bug An existing feature does not function as intended [Feature] Site Editor Related to the overarching Site Editor (formerly "full site editing") labels Jun 2, 2023
@andrewserong andrewserong self-assigned this Jun 2, 2023
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github-actions bot commented Jun 2, 2023

Size Change: -12 B (0%)

Total Size: 1.39 MB

Filename Size Change
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build/edit-site/style.css 10.9 kB -6 B (0%)
ℹ️ View Unchanged
Filename Size
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@tellthemachines tellthemachines left a comment

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Thanks for fixing this! The flashing scrollbar is quite annoying 😄

The style seems to have been added in this commit to make the sidebar heading sticky. Testing these changes, the heading is still behaving stickily so we should be fine! (I'd expect overflow-y to have more of an influence in the sticky behaviour than overflow-x, anyway.)

@jasmussen
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Judging from the before/after, this looks good, thank you for providing those visuals for a quick sanity check.

@oandregal
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oandregal commented Jun 2, 2023

I've tested this on a different OS (linux) using chrome and firefox: I can repro the horizontal scrollbar is present in trunk and it's gone in this PR. Thanks!

As for what that rule was for: I cannot provide much insight. It was a very collaborative PR and I see it was introduced at d61d0c2 and it seems it has to do with sticking the header #45100 (comment) As far as I can see, it still works as expected. cc @youknowriad in case he remembers any other thing that could break with this.

@youknowriad
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I don't remember to be honest. I tested quickly and I don't see any obvious regression here.

@andrewserong
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Thanks for testing and confirming, folks! I'll merge this in, but it's an easy revert if we run into any issues 🙂

@andrewserong andrewserong merged commit 08f084f into trunk Jun 4, 2023
@andrewserong andrewserong deleted the fix/scrollbar-when-transitioning-screens-in-browse-mode branch June 4, 2023 23:21
@github-actions github-actions bot added this to the Gutenberg 16.0 milestone Jun 4, 2023
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5 participants