[wp-trac] [WordPress Trac] #56325: Some blocks' RTL stylesheets not loading when RTL language is set

[WordPress Trac]

#56325: Some blocks' RTL stylesheets not loading when RTL language is set
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 Reporter:  zoonini                              |       Owner:  (none)
     Type:  defect (bug)                         |      Status:  new
 Priority:  normal                               |   Milestone:  6.1
Component:  Editor                               |     Version:  6.0
 Severity:  major                                |  Resolution:
 Keywords:  has-patch needs-testing needs-unit-  |     Focuses:  css, rtl
  tests                                          |
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Comment (by SergeyBiryukov):

 In [changeset:"54330" 54330]:
 {{{
 #!CommitTicketReference repository="" revision="54330"
 Editor: Correctly load RTL stylesheets in `register_block_style_handle()`.

 When setting an RTL language under Settings → General, some RTL
 stylesheets were not loaded, with LTR stylesheets being loaded instead,
 meaning that some blocks were not displayed correctly.

 This commit ensures that all appropriate RTL stylesheets are loaded when
 selecting an RTL language.

 Additionally, this commit improves performance by only running a
 `file_exists()` check for an RTL stylesheet if `is_rtl()` returns true,
 i.e. an RTL locale is selected.

 Follow-up to [49982], [50836].

 Props zoonini, sabernhardt, maahrokh, ankit-k-gupta, aristath, poena,
 SergeyBiryukov.
 See #56325.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/56325#comment:9>
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