touch-packages team mailing list archive

[Michi Henning <michi.henning@xxxxxxxxxxxxx>]

It looks like all that's really needed on the scopes side is a
documentation update. I've documented a "art-fallback" in the
"components" dictionary of the category renderer. That allows a scope to
specify a category-specific fallback image. I think this should be
enough of a hook, but the shell will need to actually use the field if
it cannot retrieve the artwork for a particular result. If no fallback
image is specified, or the URI for the fallback image cannot be
resolved, I guess the shell should display some universal placeholder
image, so there is at least something on screen, instead of nothing at
all.

** Branch linked: lp:~michihenning/unity-scopes-api/fallback-image

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https://bugs.launchpad.net/bugs/1324142

Title:
  Support providing fallback images

Status in Thumbnail generator for all kinds of files:
  New
Status in unity-scopes-api package in Ubuntu:
  In Progress
Status in unity-scopes-shell package in Ubuntu:
  New
Status in unity8 package in Ubuntu:
  Triaged

Bug description:
  If the URI for a scope result icon can not be loaded, the scope result
  is not easily visible.

  To counter this, the shell should replace the result image with a
  fallback image if the Image QML component changes to the Error state.
  At a minimum a single standard fallback image would be sufficient, but
  letting the scope pick a custom fallback via the category renderer
  template would be better.

  One reason I'd like to see this is so we can switch the album art
  image provider to stop returning a fallback image.  This has been
  requested by the music-app guys, and seems sensible since we might
  want different fallbacks in different contexts:

  https://code.launchpad.net/~jamesh/thumbnailer/no-fallback-
  albumart/+merge/219460

  It might also be useful for remote scopes using http: URIs for result
  icons.

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