HTML-Object
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lib/HTML/Object/DOM/Element/TextArea.pm view on Meta::CPAN
__END__
=encoding utf-8
=head1 NAME
HTML::Object::DOM::Element::TextArea - HTML Object DOM TextArea Class
=head1 SYNOPSIS
use HTML::Object::DOM::Element::TextArea;
my $textarea = HTML::Object::DOM::Element::TextArea->new ||
die( HTML::Object::DOM::Element::TextArea->error, "\n" );
=head1 VERSION
v0.2.0
=head1 DESCRIPTION
This interface provides special properties and methods for manipulating the layout and presentation of <textarea> elements.
=head1 INHERITANCE
+-----------------------+ +---------------------------+ +-------------------------+ +----------------------------+ +--------------------------------------+
| HTML::Object::Element | --> | HTML::Object::EventTarget | --> | HTML::Object::DOM::Node | --> | HTML::Object::DOM::Element | --> | HTML::Object::DOM::Element::TextArea |
+-----------------------+ +---------------------------+ +-------------------------+ +----------------------------+ +--------------------------------------+
=head1 PROPERTIES
Inherits properties from its parent L<HTML::Object::DOM::Element>
=head1 METHODS
Inherits methods from its parent L<HTML::Object::DOM::Element>
=head1 EVENTS
Event listeners for those events can also be found by prepending C<on> before the event type:
C<click> event listeners can be set also with C<onclick> method:
$e->onclick(sub{ # do something });
# or as an lvalue method
$e->onclick = sub{ # do something };
=head2 input
Fires when the value of an L<input|HTML::Object::DOM::Element::Input>, L<select|HTML::Object::DOM::Element::Select>, or L<textarea|HTML::Object::DOM::Element::TextArea> element has been changed.
Example:
<input placeholder="Enter some text" name="name"/>
<p id="values"></p>
my $input = $doc->querySelector('$input');
my $log = $doc->getElementById('values');
$input->addEventListener( input => \&updateValue );
sub updateValue
{
my $e = shift( @_ );
$log->textContent = $e->target->value;
}
See also L<Mozilla documentation|https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/input_event>
=head2 selectionchange
Under perl, this does not do anything of course, but you can fire yourself the event.
Under JavaScript, this fires when the text selection in a L<textarea|HTML::Object::DOM::Element::TextArea> element has been changed.
Example:
<div>Enter and select text here:<br><textarea id="mytext" rows="2" cols="20"></textarea></div>
<div>selectionStart: <span id="start"></span></div>
<div>selectionEnd: <span id="end"></span></div>
<div>selectionDirection: <span id="direction"></span></div>
my $myinput = $doc->getElementById( 'mytext' );
$myinput->addEventListener( selectionchange => sub
{
$doc->getElementById( 'start' )->textContent = $mytext->selectionStart;
$doc->getElementById( 'end' )->textContent = $mytext->selectionEnd;
$doc->getElementById( 'direction' )->textContent = $mytext->selectionDirection;
});
See also L<Mozilla documentation|https://developer.mozilla.org/en-US/docs/Web/API/HTMLTextAreaElement/selectionchange_event>
=head2 EVENT HANDLERS
=head2 oninput
Property to handle event of type C<input>. Those events are not automatically fired, but you can trigger them yourself.
=head2 onselectionchange
Property to handle event of type C<selectionchange>. Those events are not automatically fired, but you can trigger them yourself.
=head1 AUTHOR
Jacques Deguest E<lt>F<jack@deguest.jp>E<gt>
=head1 SEE ALSO
L<Mozilla documentation|https://developer.mozilla.org/en-US/docs/Web/API/HTMLTextAreaElement>, L<Mozilla documentation on textarea element|https://developer.mozilla.org/en-US/docs/Web/HTML/Element/textarea>
=head1 COPYRIGHT & LICENSE
Copyright(c) 2022 DEGUEST Pte. Ltd.
All rights reserved
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
=cut
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