Combo boxes should not react on hover in read-only mode

[Piotrek Koszuliński]

Regression after v3.

[Garry Yao]

Rich combo should adapt to the new state-ful button styling rules:

cke_combo_button_off{ ...styles for normal combo...}
cke_combo_button_on{ ...styles for opened combo...}
cke_combo_button_disabled{ ...styles for disabled combo...}
cke_combo_button_off:hover{ ...styles for normal combo, when hovered...}

[Frederico Caldeira Knabben]

The way it is done now is correct, applying the status of the combo to the outer element. In this way, other parts of the combo widget can be touched by the status, like the label.

It looks like this fix requires a CSS fix only.

[Garry Yao]

Ok, I've moved up the combo state onto the top element.

[Garry Yao]

Fixed on master with

​https://github.com/ckeditor/ckeditor-dev/commit/65be690e2663469b5a8d34fd0fcc93839e26acd6