Re: New magnifier UI: Input requested

El Viernes 14 de febrero de 2014 17:25, Joseph Scheuhammer <[email protected]> escribió:

Improvements to the magnifier preferences dialog have been suggested.  
>A  mockup, courtesy of Allan Day, can be found at the following URL:
>https://raw.github.com/gnome-design-team/gnome-mockups/master/system-settings/universal-access/zoom-and-filters.png
>
>One of the additions is a check box labelled "Keep keyboard focus in  
>view" that is on the left hand "Zoom" panel.  This is for toggling the 
>activation of focus/caret tracking.
>
>The gnome-shell magnifier supports tracking modes for widget focus,  
>caret focus, and mouse pointer movement.  Furthermore, these are 
>independent of each other.  However, the proposed dialog combines 
>them.   The radio buttons above the check box list different mouse 
>tracking  modes, i.e. "Push with pointer", "Follow pointer", and "Keep 
>pointer  centered".  Whatever mode is set for the mouse will be used for 
>both  focus and caret tracking.
>
>The question is what do magnifier users want or need regarding tracking 
>types?  Are there use cases for having the types of tracking independent 
>of each other?  Or, if the user chooses "centered" for one,  that 
>applies to all? We would really like user input.
>
>To give a better idea of what this is about, I'll be the use case, 
>since  I use a magnifier on occasion, and at a low magnification factor 
>(1.75x).  My preference is "push" for mouse and caret tracking, but  
>"centered" for focus tracking.
>
>With respect to the mouse, I prefer it behave as close as possible to  
>the non-magnifier experience.  On a standard desktop, the mouse moves,  
>not the contents.  The mouse tracking mode that comes the closest to  
>that experience is "push", where the contents do not move in the  
>magnified view until the mouse abuts up against an edge. When it does,  
>the contents do move, but only enough to bring them into view.
>
>For myself, the text caret works in a similar way.  When using a word  
>processor, the caret generally moves in small increments -- left, 
>right,  up, and down --  and I prefer that the contents not move until 
>they need to.
>
>However, when using the keyboard to tab-navigate around the UI, widget 
>focus frequently jumps over large distances.  For example, I may be 
>near  the bottom of the screen editing a text document when I use 
>alt+tab to  use the task switcher.  Focus moves (warps) to the centre of 
>the screen,  far from where I was typing.  I need to reorientto the new 
>screen contents (my point of regard, so to speak),  and, in my case, 
>that is helped by centering the widget that just  acquired focus -- I 
>prefer "centered" tracking for changes in widget  focus.  Trying to 
>preserve little or no movement in the contents is  pointless here since 
>focus is likely to move large distances.
>
>Now, that's just me, and I stress that I am **not**putting my 
>preferences  forward as any kind of standard.  In fact, quite the 
>opposite.  Those  are my user preferences.  I fully expect other 
>magnifier users to have different ones, and we would like to know yours 
>so that we fully understand the needs and can incorporate them into the 
>UI being designed: Do you use the same tracking mode for focus, caret, 
>and mouse or different modes for each? And if you use different modes, why?
>



Hi Joseph !

I don't think you are the only one who prefers different tracking options. The only case I know uses push for the mount pointer and center/smart for the text caret and menu options. 


I think we need more flexibility options in this feature because it can be used for a wide range of people: cognitive problem like cerebral palsy that make difficult to focus, different grades of low vision, people who can't use the mouse or the keyboard as usual, etc.

Cheers,

   -- Juanjo Marin