NAME
HTML::DOM::Collection::Options - A subclass of HTML::DOM::Collection for 'option' elements
SYNOPSIS
use HTML::DOM;
$doc = HTML::DOM->new;
$doc->write('
<form name=theform>
<select name=choice>
<option>
<option>
</select>
</form>
');
$doc->close;
$options = $doc->forms->{theform}{choice}->options;
# returns an HTML::DOM::Collection::Options object
$options->[0]; # first option
$options->item(0); # same
$options->
$elements->{r}; # an array of buttons named 'r'
$elements->namedItem('r'); # same
() = $elements->namedItem('r'); # list, not array
$elements->length; # same as $#$elements
DESCRIPTION
This inherits from HTML::DOM::Collection and adds a few extra methods for compatibility with WWW::Mechanize. This is used to represent a 'select' element's list of options.
CONSTRUCTOR
Normally you would simply call HTML::DOM::Element::Select's options
method (as in the "SYNOPSIS"). But if you wall to call the constructor anyway, here is the syntax:
$elements = HTML::DOM::Collection::Options->new($nodelist)
$nodelist should be a node list (HTML::DOM::NodeList) object.
METHODS
- $options->length
-
Returns the number of items in the collection.
- $options->item($index)
-
Returns item number
$index
, numbered from 0. Note that you call also use$elements->[$index]
for short. - $options->namedItem($name)
-
Returns the item named
$name
. You can also write$collection->{$name}
.
These last few are provided for WWW::Mechanize compatibility.
- $options->type
-
Returns the string 'option'.
- $options->name
-
Returns the name of the 'select' element.
- $options->possible_values
-
Returns the a list of the options' values. Provided for WWW::Mechanize compatibility.
- $options->value
- $options->value('new_value');
-
Selects the option with the value given and returns the old value, or simply returns the value if there is no argument.
- $options->disabled
-
Returns true if all the options are disabled, false otherwise.
- $options->form_name_value;
-
Returns a list consisting of (0) the name of the 'select' element and (1) the value of the selected option.
BUGS
The name
and form_name_value
methods currently die if there are no options.
SEE ALSO
The source of HTML/DOM/Element/Form.pm, where this is implemented.