WCSS
Access Key Extension
Specifying Keypad
Shortcuts for Elements (-wap-accesskey Property)
Only
one WCSS property, -wap-accesskey, is included in the access key
extension. The -wap-accesskey property is used to specify a keypad
shortcut for an XHTML MP element. Valid property values are *, #, 0,
1, 2, 3, 4, 5, 6, 7, 8, and 9.
Here
are some WAP CSS examples:
a.wcss_class_1
{-wap-accesskey: 1}
input.wcss_class_1
{-wap-accesskey: 4}
a.wcss_class_2
{-wap-accesskey: *}
input.wcss_class_2
{-wap-accesskey: #}
Note:
Specifying directly the * and # characters to a property actually
violates the CSS2 (and thus WAP CSS) syntax. To follow the CSS2
syntax, you have to use Unicode escape sequences instead. The Unicode
escape sequences of * and # are \2a and \23 respectively. Examples:
"-wap-accesskey: \2a", "-wap-accesskey: \23".
However, in practice, some WAP browsers (e.g. some Sony Ericsson WAP
browsers) require the form "-wap-accesskey: \2a" and
"-wap-accesskey: \23", while some others (e.g. Openwave
Mobile Browser 6.2.2) require the form "-wap-accesskey: *"
and "-wap-accesskey: #".
If
you read our XHTML
MP tutorial, you will remember that some XHTML MP tags
such as <a> and <input> contain the accesskey attribute
that can also help you define a shortcut key in mobile phone
browsers. You can achieve the same outcome by using either the
-wap-accesskey property or the accesskey attribute. If the
-wap-accesskey property is applied to an XHTML MP tag of which the
accesskey attribute has been specified, the -wap-accesskey property
value will override the accesskey attribute value.
In
XHTML MP, only four elements (<a>, <input>, <label>
and <textarea>) contain the accesskey attribute. If you apply
the -wap-accesskey style to any element other than these four, there
will be no effect when the keypad shortcut is pressed. For example,
let's say you specify the WCSS style statement "p
{-wap-accesskey: 1}" in a cascading style sheet. Nothing will
happen if you press the "1" key of the keypad.
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