[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Michi Henning]

** Changed in: unity-scopes-api (Ubuntu)
   Status: Fix Committed => Fix Released

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  [Scopes] Scope result models are cleared on updates

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Pat McGowan]

** Changed in: canonical-devices-system-image
   Status: Fix Committed => Fix Released

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  [Scopes] Scope result models are cleared on updates

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Launchpad Bug Tracker]

This bug was fixed in the package unity-scopes-shell -
0.5.5+16.04.2015-0ubuntu1

---
unity-scopes-shell (0.5.5+16.04.2015-0ubuntu1) xenial; urgency=medium

  [ CI Train Bot ]
  * debian/libscope-harness.symbols.in: update to released version.
  * Resync trunk.

  [ Pawel Stolowski ]
  * Apply updates to results model instead of clearing. Removed obsolete
code which deals with special categories. (LP: #1238979)

 -- Michael Zanetti   Wed, 11 Nov 2015
09:31:47 +

** Changed in: unity-scopes-shell (Ubuntu)
   Status: In Progress => Fix Released

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  [Scopes] Scope result models are cleared on updates

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Jean-Baptiste Lallement]

** Changed in: canonical-devices-system-image
   Status: In Progress => Fix Committed

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Alejandro J. Cura]

** Changed in: canonical-devices-system-image
Milestone: ww46-2015 => ww02-2016

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Michi Henning]

** Changed in: unity-scopes-api (Ubuntu)
   Status: In Progress => Fix Committed

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Michi Henning]

Closing for scopes API. Doc update branch is here:
https://code.launchpad.net/~michihenning/unity-scopes-api/category-
doc/+merge/276079

** Changed in: unity-scopes-api (Ubuntu)
   Status: Confirmed => In Progress

** Branch linked: lp:~michihenning/unity-scopes-api/category-doc

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Pawel Stolowski]

Michi, yes, you're right, I discussed this with Albert, the thumbnailer
is not involved here.

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: unity-scopes-api (Ubuntu)
   Status: New => Confirmed

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Paty Davila]

I’ve tested silo 20 and I have to say that these changes -mainly no
clearing results when updating the model but rather as the results
arrive- have a great positive impact on the overall experience when
using scopes, so great work¡ : )

Also, the flickering/jumping of results has been palliated, or at least,
with a good network connection, it *feels* faster.

We definitely want to avoid accidental activation by tapping results
while these are updating, however, if there’s no way of “enforcing
physical location when a new item arrives”, I would NOT recommend to
make results “inactive”, even for a small amount of time. I don’t know
what the most appropriated solution could be with the challenges of the
current architecture, but I will think of/design some alternatives for
this issue.

Some other things to consider:

- Missing icons problem (see screenshot attached) - Pawel pointed that
this is not scope’s fault but rather the shell requesting icons via
thumbnailer. I’ve experienced this in several occasions, is there any
technical limitation that prevent us from solving this issue and
optimising the experience?

- We also need to account for the empty dash use cases, where some
queries provide no results at all (i.e.: try searching for ‘coffee’ in
the News aggregator = 0 results and no feedback to the user). In order
to design for this screen, I need to understand what’s happening behind
the scenes. Isn’t there a single result for this query, really?

- Also, for accessibility reasons, instead of delivering results for a
partial string we should wait for a natural pause when user is typing to
trigger the query - currently the timer is set to 300ms. My
recommendation would be to wait (at least) 700ms for user input before
firing the query, provided some feedback is presented that results are
being returned.

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Paty Davila]

** Attachment added: "Missing icons problem"
   
https://bugs.launchpad.net/unity-scope-mediascanner/+bug/1238979/+attachment/4501135/+files/screenshot20151020_123936344.png

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Paty Davila]

** Attachment added: "Missing icons problem"
   
https://bugs.launchpad.net/unity-scope-mediascanner/+bug/1238979/+attachment/4501136/+files/screenshot20151020_123936344.png

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Paty Davila]

** Changed in: ubuntu-ux
   Status: Fix Committed => Fix Released

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Pawel Stolowski]

Yeah, as discussed on IRC, the problem with missing icons is not new and is 
unrelated to changes in this MP - could be a timeout when fetching the icons 
from network, not sure (michi?).
I suggest we consider the case of 'no results' separately and not try to mix it 
with the improvements from this MP, as this is a separate feature.
Regarding typing timeout, I've just increased it with this MP for testing.

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Michi Henning]

> Yeah, as discussed on IRC, the problem with missing icons is not new
and is unrelated to changes in this MP - could be a timeout when
fetching the icons from network, not sure (michi?).

Looking at the image, it shows the weather scope without icons. Is the
shell *really* going through the thumbnailer for those? It seems
unlikely to me, seeing that the thumbnailer normally is used only to
generate thumbnails for local photos and videos, or to fetch album
covers and artist images from dash.ubuntu.com. In other words, the
thumbnailer clients are camera, gallery, and music apps, as well as the
photo, video, and music scopes. The telegram app also uses it. I'm not
aware of any other clients at the moment.

I's say the problem here is the weather scope rather than the
thumbnailer.

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Pawel Stolowski]

** Branch linked: lp:~aacid/unity8/dash_reset_instead_of_fatal

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Michi Henning]

Added scopes api because it needs a documentation update. (See comments
for the attached diff branch.)

** Also affects: unity-scopes-api (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: unity-scopes-api (Ubuntu)
   Importance: Undecided => High

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Pat McGowan]

** Also affects: canonical-devices-system-image
   Importance: Undecided
   Status: New

** Changed in: canonical-devices-system-image
   Importance: Undecided => High

** Changed in: canonical-devices-system-image
   Status: New => In Progress

** Changed in: canonical-devices-system-image
Milestone: None => ww46-2015

** Changed in: canonical-devices-system-image
 Assignee: (unassigned) => Alejandro J. Cura (alecu)

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Paty Davila]

** Changed in: ubuntu-ux
 Assignee: James Mulholland (jamesjosephmulholland) => Paty Davila 
(dizzypaty)

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Pawel Stolowski]

I've linked a new MP - diff-updates branch - which IMHO improves current
dash interactions *a lot*

It gets rid of results model clearing and instead only updates the model
as results arrive, after a small delay (to have a chance of accumulating
some results).  Now, whether we should still consider disabling the view
while waiting for new search to finish is an open question, but I think
it's not necessary - the bouncing bar above OSK gives clear indication
that things are about to change. While some jumping may in theory
happen, in practice it works very well (I've played with several
scopes). These changes are currently available in silo 20 for testing.

Note, the suggestion to "enforce that an existing item cannot change
physical location when a new item arrives" is not really possible to
accomplish - the order of results is up to the scope, a new search may
return the same items as previous one, only in different order, in which
case we will just move items around.

** Branch unlinked: lp:~stolowski/unity-scopes-shell/delay-clear

** Branch unlinked: lp:~stolowski/unity-api/results-enabled-flag

** Branch unlinked: lp:~aacid/unity8/results-enabled-flag

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Pawel Stolowski]

** Branch linked: lp:~stolowski/unity-scopes-shell/diff-updates

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[Alejandro J. Cura]

** Changed in: unity-scopes-shell (Ubuntu)
   Importance: Medium = High

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[James Mulholland]

As Cimi said, graphical changes to the UI are likely to introduce more
visual noise/clutter and make things less clear (and in the case of slow
connections or devices, reduce utility).

Michi's suggestion (...enforce that an existing item cannot change
physical location when a new item arrives) would give a far more
stable/ predictable user experience and is, in my opinion, the way to
go.

** Changed in: ubuntu-ux
   Status: Triaged = Fix Committed

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[Bug 1238979] Re: [Scopes] Scope result models are cleared on updates

[James Mulholland]

** Summary changed:

- [dash] Scope result models are cleared on updates
+ [Scopes] Scope result models are cleared on updates

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