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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef __com_sun_star_form_validation_XValidatableFormComponent_idl__
#define __com_sun_star_form_validation_XValidatableFormComponent_idl__
#include <com/sun/star/form/validation/XValidatable.idl>
#include <com/sun/star/lang/NoSupportException.idl>
#include <com/sun/star/lang/NullPointerException.idl>
module com { module sun { module star { module form { module validation {
interface XFormComponentValidityListener;
/** is a convenience interface for accessing several aspects of a form component
which supports validation.
<p>A validatable form component has two aspects which other parties might
be interested in:
<ul>
<li>The pure validity flag: Whatever the user enters in the component, this is
either valid (relative to the active validator), or invalid.</li>
<li>The current value: Even if the validity flag does not change with the user
input (e.g. because the user replaces one invalid value with another invalid
value), observers might be interested in the current value, for example to
include it in a feedback message to the user.</li>
</ul>
</p>
<p>An XValidatableFormComponent allows to easily access both of these aspects.</p>
<p>Note that all of the information provided at this interface can also obtained by other means,
but much more inconveniently.</p>
@see XValidatable
@see XValidator
*/
interface XValidatableFormComponent : XValidatable
{
/** determines whether the current value of the component passed the validity test
at the validator.
<p>Calling this is equal to calling XValidator::isValid() with
the current value (see getCurrentValue()) of the component, where
the validator is obtained via XValidatable::getValidator().</p>
<p>If no validator has been set (XValidatable::setValidator()), this method
returns true.</p>
*/
boolean isValid();
/** retrieves the current value of the component.
<p>The type of the current value, as well as it's semantics, depend on the service
implementing this interface.</p>
<p>Again, this is a convenience method. For example, for a com::sun::star::form::component::FormattedField,
calling this method is equivalent to retrieving the
com::sun::star::awt::UnoControlFormattedFieldModel::EffectiveValue.</p>
<p>If no validator has been set (XValidatable::setValidator()), the value returned
here is defined by the service implementing this interface.</p>
*/
any getCurrentValue();
/** registers the given listener.
<p>XFormComponentValidityListeners are called whenever <em>any</em> of the aspects
of the validatable form component (the validity flag, or the value) changed.</p>
@throws com::sun::star::lang::NullPointerException
if the given listener is `NULL`
*/
void addFormComponentValidityListener( [in] XFormComponentValidityListener Listener )
raises( com::sun::star::lang::NullPointerException );
/** registers the given listener.
@throws com::sun::star::lang::NullPointerException
if the given listener is `NULL`
*/
void removeFormComponentValidityListener( [in] XFormComponentValidityListener Listener )
raises( com::sun::star::lang::NullPointerException );
};
}; }; }; }; };
#endif
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