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Re: ARIA Drop Down and Combo button behavior

From: David Poehlman <poehlman1@comcast.net>
Date: Wed, 14 Feb 2007 09:46:10 -0500
Message-Id: <F5B32B92-2E3C-4F4B-88B8-5780D8B989FB@comcast.net>
Cc: <wai-xtech@w3.org>
To: "Schnabel, Stefan" <stefan.schnabel@sap.com>

Hi Stefan,

Off list, how do you approach the conbination button/dropdown on the  
Mac?  it says space triggers and alt down arrow or context opens the  
list.  On the mac osx.4.x, we use space to drop down lists and also  
to activate buttons and toggle checkboxes and to check radio buttons  
if moving to the radio button does not check it.  Context menuu is  
not directly accessable via the keyboard except via VoiceOver that I  
know of. you can control right click, but the mouse is still envolved.
Your input is welcoome and thanks for the information.

Thanks!

On Feb 14, 2007, at 6:28 AM, Schnabel, Stefan wrote:

Hi Becky,
here at SAP we have the following types of controls regarding such  
behaviors of buttons and collapsed lists:
1. Pushbutton: triggers an action. done.
2. Togglebutton: toggles a state. two states, pressed, unpressed.
3. Menubutton: a button that offers a menu. a click on a button opens  
the menu. After a menu item was selected the menu closes and the  
button returns to unpressed state. Alt+Down to open the list is  
optional.
4. Configurable Button: a button with two sections: the clickable  
area with the currently configured default action and a comboboxlike  
extra button to open the menu with the actions that can be used.  
Selecting one of the actions will change the button's default action  
but not trigger. To trigger the button face must be pressed.
Space is used to trigger the button face and Alt+Down or the context  
menu is used to open the menu, mandatory.
5. Dropdownlists: A combobox-like list where the user just selects  
one of the list items. The user cannot overtype and add new items.  
Typing works as "type ahead" so quickly get to the list item of  
interest. (See MS ListControls). Alt+Down to open the list.
6. Combobox: A real combobox, where a list of values is proposed but  
other values can be added by keyboard. Keyboard input is first used  
to autocomplete, if it doesn't match existing values it is handled as  
new value.
(See Microsoft Access comboboxes for the implementation with the best  
user experience and efficiency.)
Alt+Down to open the list.
Oliver Keim / Stefan Schnabel
Interaction Designer, User Interface Design Expert
SAP AG
Robert Bosch Str. 30
69190 Walldorf, Germany
T +49 6227 7-41522
F +49 6227 78-18394
mailto:oliver.keim@sap.com
www.sap.com


Dr. Stefan Schnabel
Accessibility Expert
SAP User Experience Accessibility

SAP AG
Dietmar-Hopp-Allee 16, 69190 Walldorf, Germany
T: +49 (6227) 7-65652
F: +49 (6227) 78-29877

mailto:stefan.schnabel@sap.com
www.sap.com
Sitz der Gesellschaft/Registered Office: Walldorf, Germany
Vorstand/SAP Executive Board: Henning Kagermann (Sprecher/CEO), Shai  
Agassi, Léo Apotheker, Werner Brandt, Claus Heinrich, Gerhard Oswald,  
Peter Zencke
Vorsitzender des Aufsichtsrats/Chairperson of the SAP Supervisory  
Board: Hasso Plattner
Registergericht/Commercial Register Mannheim No HRB 350269

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Received on Wednesday, 14 February 2007 14:46:26 GMT

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