Add a scope selector in the extension popup with dynamic filtering

[omentic]

Prerequisites

• I verified that this is not a filter issue
  • Filter issues MUST be reported at filter issue tracker
• This is not a support issue or a question
  • Support issues and questions are handled at /r/uBlockOrigin
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
  • Your issue may already be reported.
• I tried to reproduce the issue when...
  • uBlock Origin is the only extension
  • uBlock Origin with default lists/settings
  • using a new, unmodified browser profile
• I am running the latest version of uBlock Origin
• [~] I checked the documentation to understand that the issue I report is not a normal behavior
  • It is, this is a feature request

Description

Currently, when on a URL that has subdomains (as an example, Old Reddit), it is impossible to define Dynamic Filters for that subdomain. This of course can be worked around by manually writing rules, but it would be much appreciated if it could be done in the interface as well.

A specific URL where the issue occurs

https://old.reddit.com

Steps to Reproduce

1. Enable Advanced Mode for Dynamic Filtering
2. [Second Step]
3. [and so on...]

Expected behavior:

My suggestion would be for different parts of the URL under the power button to be clickable to change the scope. The scope in question would be bold.

For example, the default scope is old.reddit.com (even though only old.reddit.com is bolded in the above screenshot - I hope that doesn't serve another purpose). To change the scope to all of old.reddit.com, I would click the reddit part of the url. For all .com domains, old.reddit.com would be clickable.

This would act similar to the scope selector in uMatrix.

Actual behavior:

There is no way that I know of to apply Dynamic Filtering to a subdomain from the UI.

Your environment

• uBlock Origin version: 1.34.0
• Browser Name and version: Ungoogled Chromium 88.0
• Operating System and version: Linux 5.11

[uBlock-user]

Sounds like gorhill/uBlock#3297 ?

[omentic]

Kind of, that seems more about the default setting rather than implementing an actual scope selector. This issue probably supersedes it.

Out of curiosity, are the open issues on the old uBlock tracker still considered active?

[uBlock-user]

Out of curiosity, are the open issues on the old uBlock tracker still considered active?

Yes.

[gorhill]

Duplicate of #730, which has been set as duplicate of gorhill/uBlock#3297.

[omentic]

@gorhill Would you mind leaving this issue open instead, since it's on the new tracker and non-contributors can participate?

[gorhill]

People can freely comment here.

[ccoager]

I can't comment on the old ticket tracker so I'll add my feedback here. I think a feature like this would be very desirable to those that use medium/hard mode and have to modify rules often.

A few more ideas to implement in the UI:

• Use an expanded field on the source domain like the UI is already doing for destination domains. Clicking on the "..." would expand/shrink the list of domains. If you have advanced user enabled, the panel would auto-expand already like it does for destination domains. Then click and highlight the source domain to interact with when adding rules. If you don't highlight a domain, it would default to the domain in the URL.
• Make the source domain a drop-down menu to select which to interact with. Default to the domain in the URL.

Another idea could be to add an advanced setting boolean for source domains to add rules on the root level domain or not. This could also work in conjunction with the default source domain selected for the UI implementation.