Extend Watch Recording 'jump' to all groups

[Roger Siddons <dizygotheca@…>]

Ticket ​https://code.mythtv.org/trac/ticket/12157 introduced a very useful feature for navigating between the groups containing a specific recording. However it is currently limited to title groups.

If the group filter does not contain titles then the menu for recordings in "All Programmes" still shows a "List Recorded Episodes" button that performs no action.

For recordings in other groups (watchlist, category, search rules etc) it will navigate to "All Programmes" but then there is no convenient way of returning to the original group.

This patch reimplements the feature as a cyclic search that navigates between all displayed groups (in order of display).

If the group filter contains only titles (typical configuration?) then the behaviour is unchanged, ie. it will toggle between "All Programmes" and the Title group (although the menu options "List All Recordings"/"List Recorded Episodes" are replaced by "Show Next Group").

However, when the group filter also contains other groups (showing the recording), it will cycle through them all of them. For example. for a group filter of Titles, Watchlist & Category (where the title group is shown before the Category group) the navigation will be Watchlist -> the Title Group -> the Category -> All Programmes -> Watchlist etc.

This is much more useful to Watchlist users in particular.

[Karl Egly]

Roger, assigning your open patches to yourself. Feel free to unassign if you prefer a review.

[Stuart Auchterlonie]

Closing all old tickets in trac.

If your issue still persists, please open an issue in Github ​https://github.com/MythTV/mythtv/issues

and reference the existing trac ticket.