CTRL + A on selected image moves the caret to the beginning of the editor

[Mgsy]

Steps to reproduce

1. Open a sample with an image.
2. Select the image.
3. Press CTRL + A.

Current result

Selection shows up for a moment, then breaks and the caret moves to the beginning of the editor.

GIF

Other information

OS: Windows 10, MacOS X
Browser: Chrome, Safari, Firefox, Edge, Opera
Release: 0.10.0

[Reinmar]

That's because when the user presses Ctrl+A the browser creates such a selection:

<p>[foo</p>
<image/>
<div hidden-selection-container>image widget]</div>

And then we remove the hidden selection container because we notice that the fake selection is gone.

I can imagine a couple of solutions:

• Intercepting the keystroke early and handling it on our own. This will be needed for https://github.com/ckeditor/ckeditor5-image/issues/55 anyway, so maybe we should handle it everywhere just to make it consistent. We'll also need to handle selecting the entire content when widget is the first/last element in the editable (I can't find a ticket for it now ;|).
• Fixing the selection which ends in/after the hidden selection container when removing it.
• Some hybrid solution combining intercepting the "select all" action and fixing the selection.

[szymonkups]

Moved to https://github.com/ckeditor/ckeditor5-widget/issues/23.