Yes, that makes sense. However, I think what is missing from that description is that the arrow keys not only map to an increase and decrease of value but there is also a corresponding spatial mapping on the screen to that value continuum, even though that spatial mapping doesn't matter to a non-sighted user. It is not enough that the keys map to an increase and decrease in value but they also map to the actual direction on the screen.
Or maybe the recommendation is that spatial orientation of values along the continuum should always map to the culturally appropriate orientation for increasing and decreasing values and that the arrow key bindings map to that spatial orientation. Whew, is that jargon-y. As for the double thumb, I think that is what is expected and correct. What would be nice is if the audible feedback could provide cues when the indicator reaches either limit and perhaps why. Interesting problem. - Eli On Apr 18, 2008, at 11:40 AM, Joseph Scheuhammer wrote: > Thanks Eli, > > Does this come close? Admittedly, it's for a single-range (single- > thumb?) slider: > http://dev.aol.com/dhtml_style_guide#slider > > There is one wrinkle in the double-thumb slider and that is movement > of one of the thumbs is constrained to not go beyond the other > thumb. All movement of a particular thumb would be restricted to > the range defined by the other thumb (did that make sense?). >> As for the keystrokes, I think that it makes sense if it is a tab >> and arrowkey combination. Tab to the element and then move the >> element using the directional keys. Similar to reordering an item >> in a list. I always like arrows for movement, it seems natural. >> >> I would also allow for larger jumps than single step increments. >> Most layout and drawing applications use the arrow key alone to >> move by 1 (whatever 1 means in the context) and then shift-arrow to >> mean move by 1x (where x is usually 10 or the next grid step or, >> again, whatever makes sense in the context). > -- > ;;;;joseph > > 'This is not war -- this is pest control!' > - "Doomsday", Dalek Leader - > . . . . . . . . . . . . . . . . . . . Eli Cochran user interaction developer ETS, UC Berkeley _______________________________________________ fluid-work mailing list fluid-work@fluidproject.org http://fluidproject.org/mailman/listinfo/fluid-work
