Section 508 Requirement for link components that use javascript events.
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Key: MYFACES-274
URL: http://issues.apache.org/jira/browse/MYFACES-274
Project: MyFaces
Type: Improvement
Versions: Nightly Build, 1.0.7 beta, 1.0.8 beta, 1.0.9 beta
Reporter: Mark Faine
Priority: Trivial
A corresponding redundant event handler should be added to all components that
use javascript events. The event mappings are listed below.
OnClick -> OnKeyPress
OnMouseDown -> OnKeyDown
OnMouseUp -> OnKeyUp
OnMouseOver -> OnFocus
OnMouseOut -> OnBlur
OnDblClick -> OnKeyDown
OnMouseMove -> (no equivalent)
OnDragDrop -> (no equivalent)
This is a change that would help support Section 508 requirements when using
Myfaces:
WCAG Priority 2 : Checkpoint 6.4/9.3 [priority 2]
Section 508 : Section 1194.22 - Paragraph L
This element uses a device-dependent event handler that does not have a
redundant device-dependent event handler, as required by both the Section 508
and WCAG standards. This may be inaccessible to some users of assistive
technologies who cannot trigger the event because, for example, they do not use
a mouse. An event handler is a script that runs upon a specified event, such as
when the mouse is clicked or is moved into a certain region of the page. Some
event handlers produce purely cosmetic effects. But if an event handler results
in some substantial information or function, such as displaying a pull-down
menu, it is important that a redundant input mechanism be provided for this
element. This is most commonly done by assigning a keyboard-based event handler
for every mouse-based event handler. Further, event handlers should not rely on
mouse coordinates, which prevents device-independent input. For scripts and
applets, page authors should ensure that event handlers are input
device-independent. For scripts, specify logical event handlers rather than
device-dependent event handlers. Alternatively, page authors should remove the
event handlers if they do not wish to add a redundant device-dependent one.
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