Indicator when data is being sent

[skiwi2]

There should be some form of indicator when data is being sent to the OLog instance and whether this is succesful or not.

[skiwi2]

@ShipsWithCannons Could you add some input on this issue?

[ShipsWithCannons]

There's a small square next to the "OLog Settings" button which could be used for this, or an overlay somewhere in in the top left of the corner.

Basic colors should suffice, the following are an example:

• Red

An attempt to send data was made but did not succeed.

• Green

Data was send successfully.

• Yellow

An attempt to send data was made but whether the transaction was successful can't be confirmed. Possibly due to corrupt data, time-out, etc.

A 4th colour (grey?) could be added if the server couldn't be reached.

[skiwi2]

How long should these colors be shown?

I think it's best to create an image that looks like all the other icons and use some kind of CSS filter to create an red/green/yellow overlay on top of it.

[ShipsWithCannons]

How long would depend on where we place the notification. If it's pop-up style, 1.5 seconds would be a good default (make it a setting). If we place it next to the Settings button a little longer would be better to accommodate for being far down the menu.

As for the implementation, whatever comes most natural. An overlay would have preference over loading images.