Introduced three new events:
* CONNECTING - fired just before starting the connection process
* DISCONNECTING - fired just before starting the (active) disconnection
process
* PRINTER_STATE_CHANGED - fired every time the printer state changes
Also introduced new GCODE script beforePrinterDisconnected, which will
get sent just before the printer gets (actively) disconnected. Also enabled
communication object to wait for the send queue to be emptied before
closing it, in order to allow sending all lines from the disconnect script.
That should fix user settings across multiple SessionUser wrappers. User settings were
previously only copied upon initialization of the SessionUser, with no update later on,
leading to them becoming out of sync with the underlying User instance.
This commit changes SessionUser to delegate method and attribute access for anything
but its own members to delegate to the wrapped User instance instead.
On MacOS, `tempfile.mkdtemp()` doesn't necessarily return a canonical
path (it uses `/private/var` instead of `/var`, but they are the same
thing). Since the `filemanager.storage` module canonicalizes paths,
tests were erroneously failing due to prefix match failures.
Finally found a replacement for the word "responsive", which these
days is almost inclusively understood as "viewport adjusting"
instead of its original meaning "reacting quickly".
Thanks to the javascript world, even "reactive" isn't an option
anymore, this term has now been hijacked as well.
* Show when settings are saving
* Show when settings are being retrieved
* Disable Send/Cancel buttons while settings are saving
* Prevent concurrent retrieval
The class knows about which pip versions support --process-dependency-links, which
need --no-use-wheel and which are broken altogether and adds/removes these parameters
accordingly or outright reports the broken pip version.
Depending on the pip version pip might first fetch the full index of packages available
on PyPI instead of just directly processing the provided link.
Display corresponding message to user from backend to make sure they don't
think something broke.
Also migrate for any config version < 4 (incl. None) and make sure
the other migrations may happen on top of that if necessary. Added
some comments to explain necessary migrations.
Capturing is now queue based, rendering will not start until all images have been captured,
and timed postroll does not depend on system time anymore.
Also refactored some of the names to be python naming compliant while at it.
