ListItemView should react to isEnabled state changes.

[jodator]

Suggested merge commit message (convention)

Other: The ListItemView now can be in disabled state by changing isEnabled property. Closes ckeditor/ckeditor5#5453.

---

Additional information

• requires changes in theme lark: T/ckeditor5 ui/389: Update the listitem styles to reflect changes in UI. ckeditor5-theme-lark#171

[coveralls]

Coverage remained the same at 100.0% when pulling f7c4177 on t/389 into beb9f96 on master.

[oleq]

AFAIR the .ck-enabled class is a dummy class that does nothing. Could you check that and get rid of it across the project if you agree?

Searching 3161 files for "ck-enabled" (case sensitive)

/Users/oleq/CK/5/ckeditor5/docs/framework/guides/architecture/ui-library.md:
   38  					// The value of view#isEnabled will control the presence
   39  					// of the class.
   40: 					bind.if( 'isEnabled', 'ck-enabled' ),
   41  				],
   42  
   ..
  111  
  112  ```html
  113: <input class="foo ck-enabled" type="text" placeholder="Type some text" />
  114  ```
  115  

/Users/oleq/CK/5/ckeditor5/packages/ckeditor5-ui/src/button/buttonview.js:
  119  					'ck',
  120  					'ck-button',
  121: 					bind.to( 'isEnabled', value => value ? 'ck-enabled' : 'ck-disabled' ),
  122  					bind.if( 'isVisible', 'ck-hidden', value => !value ),
  123  					bind.to( 'isOn', value => value ? 'ck-on' : 'ck-off' ),

/Users/oleq/CK/5/ckeditor5/packages/ckeditor5-ui/tests/button/buttonview.js:
   51  				expect( view.element.classList.contains( 'ck' ) ).to.true;
   52  				expect( view.element.classList.contains( 'ck-button' ) ).to.true;
   53: 				expect( view.element.classList.contains( 'ck-enabled' ) ).to.true;
   54  				expect( view.element.classList.contains( 'ck-off' ) ).to.true;
   55  			} );

4 matches across 3 files

[jodator]

It looks like it is a case. I'll remove it.

[oleq]

I think that, just like the ButtonView, a disabled ListItemView should not execute if disabled.