Dash - the "Decade" and "Size" dash filter category widgets are broken

[John Lea]

There are a number of issues with the"Decade" and "Size" dash filter category widgets.

As this widget follows the same design pattern as used by the musicovery.com decade filter, the first step to understanding these issues is to have a good play with the musicovery.com implementation. To find this widget in musicovery.com, click on anything inside the mood box on the home page (e.g. the word 'dark') and then look at the decade range filter that is then presented underneath the mood box. Specifically examine how this widget responds to both cursor drag and click interactions.

Desired Resolution:

- Implement drag interactions.

1) Dragging from a selected segment to a non-selected segment increases the selected range.

| |###|###|###| | | - pointer over item, button pressed
              ^

| |###|###|###|###| | - pointer dragged 1 to the right with button pressed
                  ^

2) Dragging from the selected segments at the far left or right of the range back over other selected segments, deselects the segments the pointer passes over (but not the segment the pointer is over at the moment the left button is released)

| |###|###|###|###| | - selection before user interaction

| |###|###|###|###| | - pointer over last item, button pressed
                  ^

| |###|###|###| | | - pointer dragged 1 to the left with button pressed
              ^

- Correct the height of this widget to match the design

- Correct the corner radius of this widget to match the design.

- Correct the click interactions. Clicking on a item in the range should select only that item, and deselect all other items.

Nick Dedekind - Split into new bug https://bugs.launchpad.net/ayatana-design/+bug/1092872
- Remove the ellipsising ("...") of filters too long to fit into their box. Each notch's box only needs to be length of it's label (they don't all need to be the same width). See the visual design.

Refer to the visual designs that are available @ https://chinstrap.canonical.com/~sabdfl/12_10/desktop_and_netbook/dash/

[Andrea Cimitan (cimi)]

Extension of this bug (related to visual pixel perfection), here:
https://bugs.launchpad.net/unity/+bug/897627

[Nick Dedekind (nick-dedekind)]

Unfortunately it doesnt seem spotify has the same radio interface anymore, so it would be useful to get the exact required behaviour.

[John Lea (johnlea)]

@nick-dedekind; updated bug description to reference the 'segmented range select widget' that is used on musicovery.com

The behaviour of the widget on the musicovery.com website is identical to previous behaviour of this widget in the spotify app, and is the target we are aiming for.

[Nick Dedekind (nick-dedekind)]

Getting rid of the ellipse is a bit of an issue.
The range labels may look ok in english, but translated strings may be longer and cause the filter widget to require space greater than the filter bar width.

I think we need a new design for the range widget which is scalable to any situation. An example of this would be a dual control slider which allows you to drag two grippers between the values.

[Nick Dedekind (nick-dedekind)]

I've started a new bug for the text size issue.
https://bugs.launchpad.net/ayatana-design/+bug/1092872

[Launchpad Janitor (janitor)]

This bug was fixed in the package unity - 6.12.0daily13.02.19.1-0ubuntu1

---------------
unity (6.12.0daily13.02.19.1-0ubuntu1) raring; urgency=low

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  [ Automatic PS uploader ]
  * Automatic snapshot from revision 3163
 -- Automatic PS uploader <email address hidden> Tue, 19 Feb 2013 14:26:14 +0000

[Stephen M. Webb (bregma)]

Fix Released in Unity Unity 7.0.0 "R series".