Using the touchbar, both align left and align justify send a beforeinput event with the 'formatJustifyLeft' inputType.

Using the Safari Tech Preview, whether I press Left Align in the touch bar or Justify Align, a beforeinput event is sent with the event type 'formatJustifyLeft'. 

Note that right align and center align do 'formatJustifyRight' and 'formatJustifyCenter' respectively.

This is problematic as developers can't differentiate which alignment option was selected.

Test bed: https://jsfiddle.net/L8qzozom/

[Radar WebKit Bug Importer]

<rdar://problem/30639155>

[Wenson Hsieh]

Currently, the input events spec only has "formatJustifyCenter", "formatJustifyRight", and "formatJustifyLeft" input types. As you pointed out, the spec needs a way of differentiating left-aligned justified alignment from left-aligned unjustified alignment. Perhaps we need input types for "formatAlignLeft", "formatAlignCenter" and "formatAlignRight"?

[Wenson Hsieh]

I filed <https://github.com/w3c/input-events/issues/68> regarding how we can't distinguish between justifying and just aligning text. Would "formatAlign{Left|Center|Right}" and a separate "formatJustify" inputType be more appropriate here?

[Wenson Hsieh]

From https://github.com/w3c/input-events/issues/68, Johannes proposed adding a new "formatJustifyFull" input type to capture the behavior of the rightmost "justify" button in the touch bar's rich text editing UI, so the alignment controls on the touch bar would emit (from left to right): "formatJustifyLeft", "formatJustifyCenter", "formatJustifyRight" and "formatJustifyFull".

Does this sound reasonable?

[Wenson Hsieh]

Created attachment 319087 [details]
Patch

[WebKit Commit Bot]

Comment on attachment 319087 [details]
Patch

Clearing flags on attachment: 319087

Committed r221199: <http://trac.webkit.org/changeset/221199>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Lucas Forschler]

Mass move bugs into the DOM component.