Launcher - auto-scroll needs to be more progressive

[John Lea]

When a user enters the scrolling zone at the top or bottom or the launcher (both when dragging a icon or with just the cursor) a auto-scroll starts. This auto scroll needs to be made more progressive. At the moment the autoscroll is too slow.

Desired solution:
- Make the auto-scroll more progressive, e.g. the scroll speed starts slower when the cursor enters the scroll zone, and becomes faster when the cursor is at the far end of the scrolling zone.

Considering a playback of 30fps, the formula should look like:

SCROLL_AREA_HEIGHT = 24px;
speed = (SCROLL_AREA_HEIGHT - mouseY) / SCROLL_AREA_HEIGHT * 30;

[Stéphane Guillou (stephane-guillou)]

This bug should be a duplicate of Bug #747874 , shouldn't it?

[Daniel van Vugt (vanvugt)]

Yes, I agree...

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 747874, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

[Stéphane Guillou (stephane-guillou)]

This is a big concern for netbooks. I have more than 20 icons on my launcher and it takes ages to scroll from top to bottom to reach the desired icon. An option is to reveal the launcher from the bottom so it opens the "stacked" part, but it is still unintuitive and the user needs to know exactly how the icons are organised.

[Christopher Townsend (townsend)]

@John Lea,

I'm working on implementing this and have it working in my test branch. I would like to ask if the 12 pixel scroll zone is still what is required? I ask for 2 reasons:

1) The current scroll zone is 24 pixels and;
2) 12 pixels seems small in my use testing in that the resolution to scroll faster and faster seems hard to control.

Thanks for your input!

[John Lea (johnlea)]

@townsend; 24px sounds good for me. Feel free to test and adapt until you are 100% happy with the feeling and behaviour, and then ping me when it lands so I can test and double check.

thanks,
John

[PS Jenkins bot (ps-jenkins)]

Fix committed into lp:unity at revision None, scheduled for release in unity, milestone backlog

[Launchpad Janitor (janitor)]

This bug was fixed in the package unity - 6.12.0daily13.03.20-0ubuntu1

---------------
unity (6.12.0daily13.03.20-0ubuntu1) raring; urgency=low

  [ Stephen M. Webb ]
  * ‘No Image Available’ in previews isn’t translatable (LP: #1106849)

  [ Brandon Schaefer ]
  * Unity unit tests take too long to finish (LP: #1053163)
  * Unity FTBFS xgettext unicode TrashLauncherIcon.cpp:91 (LP: #1156931)
  * HUD's item which is being mouse-hovered is selected, making fast
    typing and clicking Enter unsafe (LP: #1066442)

  [ Marco Trevisan (Treviño) ]
  * Icons edges are not visible on the 13.04 unity launcher (LP:
    #1156698)
  * Clicking on a device (volume) icon doesn't always bring nautilus to
    focus (LP: #1154792)
  * [Regression] No "filter result" label in the dash. (LP: #1155550)
  * Launcher icon edges become invisible when loading an application
    (LP: #1157303)
  * [regression] Tooltip label is not centered (LP: #1155553)
  * Clicking on trash icon doesn't always bring nautilus to focus (LP:
    #1154862)
  * Shutdown dialogue should close the overlays when activated from
    power button (LP: #1155610)
  * New shutdown Dialogs, shutdown/restart should change order. (LP:
    #1154578)
  * Shut Down dialog spells "Shut Down" incorrectly (LP: #1156641)
  * New shutdown dialog had no default option selected (LP: #1155562)
  * alt-tab - the 'pips' the indicate a application has multiple windows
    open look pixelated (LP: #863331)
  * Log Out dialog spells "Log Out" incorrectly (LP: #1156638)
  * Launching an application from the "Appname" quicklist could not
    bring it to focus (LP: #1155225)

  [ Mathieu Trudel-Lapierre ]
  * gcalctool desktop file got renamed (LP: #1156810)

  [ Chris Townsend ]
  * Launcher - auto-scroll needs to be more progressive (LP: #765732)

  [ Andrea Azzarone ]
  * Tooltip timeout should not be resetted on each mouse movement. (LP:
    #1155659)
  * The sharp white line between dash and launcher is missing (LP:
    #1125346)
  * Reduce launcher tooltip timeout. (LP: #1155665)
  * Launcher tooltips need fade animation on show/hide. (LP: #1155672)

  [ Ubuntu daily release ]
  * Automatic snapshot from revision 3239
 -- Ubuntu daily release <email address hidden> Wed, 20 Mar 2013 04:03:16 +0000