HTML and CSS Reference
In-Depth Information
The color input type
<input type=color>
allows the user to input a colour value via a
picker. So far, it's only implemented on the BlackBerry (
Figure 3.9
).
FIGURE 3.9
<input type=color>
on the
BlackBerry.
As well as new input types, the
input
element has several new
attributes to specify behaviour and constraints:
autocomplete
,
min
,
max
,
multiple
,
pattern
, and
step
.
There's also a new attri-
bute,
list
, that hooks up with a new element to allow a new
data input method.
The list attribute
The
<datalist>
is reminiscent of a select box, but allows users to
enter their own text if they don't want to choose one of the pre-
defined options. The list is contained in a new
<datalist>
element,
the id of which is referenced in the value of the list attribute:
<input id=form-person-title type=text list=mylist>
<datalist id=mylist>
<option label=Mr value=Mr>
<option label=Ms value=Ms>
<option label=Prof value=”Mad Professor”>
</datalist>
<datalist>
has no rendering of its own, but instead shows up
as values in a select-like fi eld.
The previous example uses
type=text
to allow freeform input,
but you can use
<datalist>
with any of the input types men-
tioned previously: for example,
url
,
email
, etc. It's possible also
to dynamically repopulate the options as the user types, replicat-
ing the Google Suggest functionality. See
http://dev.opera.com/
articles/view/an-html5-style-google-suggest/
for more details.
