Re: [STYLEGUIDE] Tab Panel discussion

Hi Becky;

Feeback on aspects of your proposal start EJ.

Earl

>  
> ctrl-up arrow -with focus anywhere within the tab panel, pressing ctrl-up 
> arrow will move focus to the tab for that panel. This is not standard 
> behavior - is this something we want to implement? Is it necessary if we 
> provide a mechanism to change the active tab? Similar to 
> ctrl-pageup/pagedown in Firefox to switch tabs?
>  
EJ	Why not Alt+up. Alt+down is the reverse standard. These are 
the standard on most desktop gtabbed pane components. It's also 
used to post/dismiss the menu on the option box element.

> alt-del - When deletion is allowed, with focus anywhere within the tab 
> panel, pressing alt-del will delete the current tab and tab panel from the 
> tabbed interface control. If additional tabs remain in the tabbed 
> interface, focus goes to the next tab in the tab list. An alternative to 
> providing a keystroke to close a tab is to provide a context menu that is 
> associated with the tab title. When focus is on the tab, pressing 
> shift-F10 or pressing the right mouse button will open a context menu with 
> the close choice 
> 
EJ	Cntrl+W closes firefox tabs, how about using Alt+W for the 
tabbed pane to maintain "W"'s association with close.

	Shouldn't the focus move to the n-1 tab? In current proposal, 
deleting last tab moves focus around to the first [i.e. n+1], 
this seems odd.

	Probably not an issue but alt+del is close to cntl+alt+del

> NEW ctrl-pageup - When focus is inside of a tab panel, pressing 
> ctrl-pageup moves focus to the tab of the previous tab in the tab list and 
> activates that tab. When focus is in the first tab panel in the tab list, 
> pressing ctrl-pageup will move focus to the last tab in the tab list and 
> activate that tab. 

> NEW ctrl-pagedown - When focus is inside of a tab panel, pressing 
> ctrl-pagedown moves focus to the tab of the next tab in the tab list and 
> activates that tab. When focus is in the last tab panel in the tab list, 
> pressing ctrl-pageup will move focus to the first tab in the tab list and 
> activate that tab. 
> Regarding ctrl-pageup/pagedown. This is currently implement in Firefox to 
> move between browser tabs. Firefox also supports ctrl-tab and 
> ctrl-shift-tab to move between tabs. Internet Explorer 7 also uses 
> ctrl-tab and ctrl-shift-tab. I (Becky) see advantages to using 
> ctrl-pageup/pagedown as the keys to change tabs since it is a recognizable 
> keystroke to at least Firefox users and is also supported by the Windows 
> operating system to move between panels in a tabbed dialog. The problem is 
> that if the user is within a tabbed interface control on a Web page, they 
> can not easily switch browser tabs without first moving focus outside of 
> the tabbed interface control. This may be acceptable. The other issue is 
> if the entire Web page is a tabbed interface control - in that case the 
> user could not ever switch browser tabs unless the control on the Web page 
> ignored the ctlr-pageup/pagedown keypress (and thus letting the browser 
> access it) when the first or last tab was reached. 

EJ	If ctrl-pageup/pagedown is what most browser users use to 
close a browser tab then choose Cntrl+tab. Reason: more people 
use browser tabs than do Dojo or other Javascript tabbed panes; 
these shouldn't be forced to learn to use different keysequences 
when they have a Dojo tabbed pane on the page they are viewing.

	Generally, I propose the Dojo widget be the one that use the 
new, hopefully similar [or less used] key sequence in situations 
where there is a conflict like this.

> I am looking for feedback for the last three proposals: using ctrl-up 
> arrow to move focus from within the tab panel back to the tab; Using 
> alt-del or a context menu to delete a tab from the tab list; using 
> ctrl-pageup and ctrl-pagedown to move between keys. 
> I prefer to implement  ctrl-pageup and ctrl-pagedown to move between keys 
> and to not implement ctrl-up arrow behavior.  I also prefer the idea of 
> using a context menu to provide a close or delete option for tabs rather 
> than inventing the new alt-del key sequence.   Are there other suggestions 
> or feedback? 
> thanks.
> 
> [1] http://weba11y.com/styleguide/index.php?title=Tab_Panel
> 
> Becky Gibson
> Web Accessibility Architect
>                                                        
> IBM Emerging Internet Technologies
> 5 Technology Park Drive
> Westford, MA 01886
> Voice: 978 399-6101; t/l 333-6101
> Email: gibsonb@us.ibm.com
> 
> 
>

Received on Friday, 1 June 2007 03:24:43 UTC