Tab moves focus message not consistently displayed

[seanmcbreen]

#3246

This message [red in status bar] was not always displayed e.g. when I closed all editor windows it would go away - the tab would still shift focus but this was not what I expected.

[seanmcbreen]

no file in focus

file in focus

[joaomoreno]

I believe Tab moves focus is only relevant when an editor is in fact open, since it makes Tab move focus away from the editor itself. @alexandrudima is this correct?

[alexdima]

The editor is trapping Tab by default. This means that when inside an editor, by default, pressing the Tab key will not move focus and will insert a tab character or spaces for indentation. This is OK, as Tab is used a lot while coding.

However, we must have a way to escape the Tab trap and move focus to the next element in the focus ring. To do so, you can press Ctrl+M which now toggles this specific editor that it no longer traps Tab. Think of it similar to "insert/overwrite" mode (which we don't yet support, but which would have a similar status bar behaviour).