[wp-trac] [WordPress Trac] #46195: is_block_editor() returns false in the block editor

[WordPress Trac]

#46195: is_block_editor() returns false in the block editor
--------------------------+-----------------------------
 Reporter:  Chouby        |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Editor        |    Version:  5.0
 Severity:  normal        |   Keywords:
  Focuses:                |
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 The `current_screen` action is supposed to be fired after the necessary
 elements to identify a screen are set up. So I would expect that
 `$screen->is_block_editor()` returns the right value in a function hooked
 to `current_screen`. But in fact `$screen->is_block_editor()` always
 return false even if are in the block editor.

 That's because the property `is_block_editor` is set much later, after
 `current_screen` action is fired.

 This small code snippet allows to reproduce the issue:
 {{{
 add_action( 'current_screen', function( $screen ) {
   error_log( var_export( $screen->is_block_editor(), true ) );
 } );
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/46195>
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