[Edge] Focus is lost when opening a color panel

[Piotrek Koszuliński]

Follow up of #12858.

1. Open any inline sample.
2. Focus editor.
3. Click the color button.
4. Focus is lost (toolbar disappears).

It may not be a problem of inline editor only, because focus lost will not be visible in the classic editor.

[Jakub Ś]

I think it works the same as in other browsers. Point 3 -> visible cursor is gone but (and it works the same everywhere)

Click on the color button, press Esc - cursor is back and you can write in editor.

Click on the color button, click on color button once more to hide it - cursor is gone for good.

[Piotrek Koszuliński]

Kuba, you sure you tested Spartan? On none other browser toolbar is hidden (what indicates that focus is lost).

[Jakub Ś]

Kuba, you sure you tested Spartan?

Thank you for putting so much faith into me ;) but stupid mistakes may happen so it is always worth to ask.

Yes I'm sure I have tested Spartan - Win 10 with IE12 the preview version. I have tested 4.4.7 and dev version.
In my case clicking on the color button doesn't hide the toolbar.

[Piotrek Koszuliński]

Yes I'm sure I have tested Spartan - Win 10 with IE12 the preview version

I'm asking because this is totally confusing. By default, even in the Win 10 technical preview, IE will work as IE11. Please read #12858's description if you haven't yet. You should be able to see "Edge" in the dev tools, not IE11. I want to be sure about this before we start checking what other differences we have (like - did you check latest major which changed a lot).

[Jakub Ś]

(like - did you check latest major which changed a lot).

I have the edge not IE11 shown. I have double-checked it before testing. You have however pointed the right area. I have not checked latest major. I have checked latest master instead.

This issue can be reproduced in latest major. It doesn't occur in latest master or 4.4.7. I should have paid more attention to version you have selected.

[Olek Nowodziński]

The problem is reflected in failed ATs:

• ​http://tests.ckeditor.dev:1030/tests/plugins/font/font all tests fail
• ​http://tests.ckeditor.dev:1030/tests/core/focusmanager/editor#tests%2Fcore%2Ffocusmanager%2Feditor%20-%20test%20editor%20focus%20-%20combo%20opened fails

[Piotrek Koszuliński]

We are still unable to work on such issues due to Edge's instability.

[Tade0]

Changes pushed to ​branch:t/13143.

Test mentioned in comment:8 are green both in Edge and IE11(Edge mode).

[Olek Nowodziński]

Merged ​git:f79b703 into master.