** Description changed:
- At the moment if a user goes to the Music Lens after a fresh install
- they are faced with an empty dash.
+ Dash - 'default' scope icons in the Dash bottom nav bar (Music, Video,
+ Messages, Photos, Apps, Files) should not be displayed if their 'default
+ view' is empty ('default view' is the content displayed before the user
+ performs a search, e.g. the results of a null search).
- The Gwibber and Photo lenses also faced similar problems, we way we
- solved these problems was by not displaying the icons that represent
- these lenses unless the user had content to search ( see bug #1056231 ).
+ The means that for example the 'Messages' icon should not appear if the
+ Messages scope is not connected to any message services. Or the 'Photo'
+ icon should not appear if the user has no photos, either stored locally
+ or accessed via an online photos service.
- This bug requests that if the Music Lens does not have any content to
- display, the Music Lens icon should not appear on the Dash bottom nav
- bar.
+ Note that the Apps and Files icons would always pass this test,
+ irrespective of internet connectivity, so we probably only need to test
+ the Photos, Messages, Music and Videos default scopes.
+
+ If a default scope fails this test, pressing the keyboard shortcut to
+ jump direct to that scope should perform no action. Ideally the
+ keyboard shortcut overlay should become dynamic and only display
+ keyboard shortcuts to the default scopes that are currently active,
+ however if it is not possible to do this in 13.04 it can wait until
+ 13.10.
+
+
+ Desired resolution:
+
+ - Perform a null search (e.g. try to retrieve the default view) on the
+ Music, Video, Message and Photo default scopes. If any of the Music,
+ Video, Message and Photo searches do not return any results, the icon
+ for these default scopes should not appear in the Dash bottom nav bar.
+
+ - Note the search does not need to retrieve the images, it only needs to
+ try to retrieve a single result from each default master scope. This is
+ because as long as any one of the scopes supplying these default master
+ scopes returns a single result, the icon for that default master scope
+ can be displayed in the Dash bottom nav bar. Therefore the search of
+ each default master scope ccould be terminated as soon as the first
+ result arrives.
+
+
+ - This search should be triggered by the following events:
+
+ 1) 30 seconds after booting into the desktop or when the user first
+ opens the Dash, whichever comes first.
+
+ 2) whenever internet connection is lost
+
+ 3) whenever internet connection is gained
+
+ 4) when an external app or service requests that the search is re-run.
+ For example a future version of the Online Accounts service may wish to
+ request that this search is re-run whenever the user adds or removes
+ account credentials
+
+ 5) when the user presses the F5 key while the Dash is open
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https://bugs.launchpad.net/bugs/1118550
Title:
Dash - 'default' scope icons in the Dash bottom nav bar should not be
displayed if their 'default view' is empty.
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