…ily.

This also lets us set up keyboard shortcuts for the buttons, etc.

We also threaded the limit through the constructors so that the extension has sole control over the limit.

The info color does not match well with the hardcoded status bar colors, especially in dark mode.

…idget for inactive logs.

… highlighted

This allows the log console icons to look nice in all themes.

This is for testing purposes. It probably should be reverted later as logging all notebook outputs is rather noisy in the log.

…nt messages have been displayed.

…at current messages have been displayed."

This reverts commit fbfd865.

It works great when you manually adjust the heights of the widgets as they are laid out. Once we figure out how to get the scrolling widget to have the appropriate height, I think this is good to go!

We have two basic approaches - we can have the scrolling behavior at the MainAreaWidget level (one intersection observer for the entire log console, but harder api since there is another wrapper around the content), or the scrolling behavior at the output area level (inside log console, which means an intersection observer for each output area, but simpler top-level api). I’m opting for the latter, and a bonus is that perhaps the scroll position can be preserved across different logs.

We could also make a new main area widget with the scrolling behavior, but that seems a bit too specialized.

Now if we are tailing a log, it will continue tailing the log when we switch back.

…y tracking.

This should fix the display issues we were seeing with notifications not being properly triggered.

…ary code.

There are some subtle issues fixed here.

1. LogConsolePanel is now more careful and complete in emitting sourceDisplayed signal so that we don’t have to have a message hook anymore.

2. Because we more carefully account for displayed messages, we remove the flashEnabled checks in the status bar updates, which makes the flashing work more correctly. For example, with flashing enabled, now we will see the indicator flash when the console is open but not visible (for example, it may be hidden behind another tab).

* reorder class methods/attributes to public/protected/private
* alphabetically sort imports and some other lists of attributes

Notebook output logging made it easier to test the logging console extension. I think it is too much noise for production, though, unless it is behind a option and turned off by default. See jupyterlab#7386