Add an option to pause crawling

[fawaf]

add option to disable crawling (e.g. the extension) in case of slowof cpu, slow network, other reason, etc.

[daoudclarke]

Also requested in a review: https://addons.mozilla.org/en-GB/android/addon/mwmbl-web-crawler/reviews/1853830/

[daoudclarke]

Since it is likely the user will forget to turn it back on (I know I will) I suggest we allow pausing, but not disabling. We could have two buttons:

1. Pause for +1h. Pressing the button displays the message "Paused until xx:xx". Pressing repeatedly will increment the number of hours it's paused for.
2. Resume. Pressing this button removes the message and resumes crawling.

If they want to turn it off completely they can do that through the Firefox extension UI.

[daoudclarke]

Behaviour for batches in progress: we need to check if pause has been pressed in the middle of processing a batch. If that is the case, then we should send the batch in its current state (even if there are just a few pages crawled) and stop crawling.

[fawaf]

err, i meant pausing mainly yeah, heh. maybe allow for a configurable option insead of just a "pause for +1 hour" button? a dropdown or even a direct textbox

[daoudclarke]

Personally I'd prefer to keep it simple, but I'll leave it to whoever implements it to decide.

[kristianpaul]

yeah, please add this, CPU was killing my laptop (i5,16G) recently and had to disable extension manually… Sorry guys

[xplosionmind]

It would be great to implement a simple keyboard shortcut to toggle crawling on and off (for exampbe cmd + shift + M).

[benob]

Another use case: disable on metered connections.