<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Form\ChoiceList\Factory;
use Symfony\Component\Form\ChoiceList\ChoiceListInterface;
use Symfony\Component\Form\ChoiceList\Loader\ChoiceLoaderInterface;
use Symfony\Component\Form\ChoiceList\View\ChoiceListView;
/**
* Creates {@link ChoiceListInterface} instances.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
interface ChoiceListFactoryInterface
{
/**
* Creates a choice list for the given choices.
*
* The choices should be passed in the values of the choices array.
*
* Optionally, a callable can be passed for generating the choice values.
* The callable receives the choice as only argument.
* Null may be passed when the choice list contains the empty value.
*
* @param callable|null $filter The callable filtering the choices
*
* @return ChoiceListInterface
*/
public function createListFromChoices(iterable $choices, callable $value = null/* , callable $filter = null */);
/**
* Creates a choice list that is loaded with the given loader.
*
* Optionally, a callable can be passed for generating the choice values.
* The callable receives the choice as only argument.
* Null may be passed when the choice list contains the empty value.
*
* @param callable|null $filter The callable filtering the choices
*
* @return ChoiceListInterface
*/
public function createListFromLoader(ChoiceLoaderInterface $loader, callable $value = null/* , callable $filter = null */);
/**
* Creates a view for the given choice list.
*
* Callables may be passed for all optional arguments. The callables receive
* the choice as first and the array key as the second argument.
*
* * The callable for the label and the name should return the generated
* label/choice name.
* * The callable for the preferred choices should return true or false,
* depending on whether the choice should be preferred or not.
* * The callable for the grouping should return the group name or null if
* a choice should not be grouped.
* * The callable for the attributes should return an array of HTML
* attributes that will be inserted in the tag of the choice.
*
* If no callable is passed, the labels will be generated from the choice
* keys. The view indices will be generated using an incrementing integer
* by default.
*
* The preferred choices can also be passed as array. Each choice that is
* contained in that array will be marked as preferred.
*
* The attributes can be passed as multi-dimensional array. The keys should
* match the keys of the choices. The values should be arrays of HTML
* attributes that should be added to the respective choice.
*
* @param array|callable|null $preferredChoices The preferred choices
* @param callable|false|null $label The callable generating the choice labels;
* pass false to discard the label
* @param array|callable|null $attr The callable generating the HTML attributes
* @param array|callable $labelTranslationParameters The parameters used to translate the choice labels
*
* @return ChoiceListView
*/
public function createView(ChoiceListInterface $list, $preferredChoices = null, $label = null, callable $index = null, callable $groupBy = null, $attr = null/* , $labelTranslationParameters = [] */);
}