gnu-social/components/Collection/Util/MetaCollectionTrait.php

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<?php
declare(strict_types = 1);
// {{{ License
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
// }}}
/**
* Collections for GNU social
*
* @package GNUsocial
* @category Plugin
*
* @author Phablulo <phablulo@gmail.com>
* @copyright 2018-2019, 2021 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
namespace Component\Collection\Util;
use App\Core\DB;
use App\Core\Event;
use App\Core\Form;
use function App\Core\I18n\_m;
use App\Entity\Actor;
use App\Util\Common;
use App\Util\Exception\RedirectException;
use App\Util\Formatting;
use EventResult;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\HttpFoundation\Request;
/**
* @template T
* */
trait MetaCollectionTrait
{
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//protected const SLUG = 'collection';
//protected const PLURAL_SLUG = 'collections';
/**
* create a collection owned by Actor $owner.
*
* @param Actor $owner The collection's owner
* @param array<string, mixed> $vars Page vars sent by AppendRightPanelBlock event
* @param string $name Collection's name
*/
abstract protected function createCollection(Actor $owner, array $vars, string $name): void;
/**
* remove item from collections.
*
* @param Actor $owner Current user
* @param array<string, mixed> $vars Page vars sent by AppendRightPanelBlock event
* @param int[] $items Array of collections's ids to remove the current item from
* @param int[] $collections List of ids of collections owned by $owner
*/
abstract protected function removeItem(Actor $owner, array $vars, array $items, array $collections): bool;
/**
* add item to collections.
*
* @param Actor $owner Current user
* @param array<string, mixed> $vars Page vars sent by AppendRightPanelBlock event
* @param int[] $items Array of collections's ids to add the current item to
* @param int[] $collections List of ids of collections owned by $owner
*/
abstract protected function addItem(Actor $owner, array $vars, array $items, array $collections): void;
/**
* Check the route to determine whether the widget should be added
*
* @param array<string, mixed> $vars
*/
abstract protected function shouldAddToRightPanel(Actor $user, array $vars, Request $request): bool;
/**
* Get array of collections's owned by $actor
*
* @param Actor $owner Collection's owner
* @param null|array<string, mixed> $vars Page vars sent by AppendRightPanelBlock event
* @param bool $ids_only if true, the function must return only the primary key or each collections
*
* @return int[]|T[]
*/
abstract protected function getCollectionsBy(Actor $owner, ?array $vars = null, bool $ids_only = false): array;
/**
* Append Collections widget to the right panel.
* It's compose of two forms: one to select collections to add
* the current item to, and another to create a new collection.
*
* @param array<string, mixed> $vars
* @param string[] $res
*/
public function onAppendRightPanelBlock(Request $request, array $vars, array &$res): EventResult
{
$user = Common::actor();
if (\is_null($user)) {
return Event::next;
}
if (!$this->shouldAddToRightPanel($user, $vars, $request)) {
return Event::next;
}
$collections = $this->getCollectionsBy($user);
// form: add to collection
$choices = [];
foreach ($collections as $col) {
$choices[$col->getName()] = $col->getId();
}
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$collections = array_map(fn ($x) => $x->getId(), $collections);
$already_selected = $this->getCollectionsBy($user, $vars, true);
$add_form = Form::create([
['collections', ChoiceType::class, [
'choices' => $choices,
'multiple' => true,
'required' => false,
'choice_attr' => function ($id) use ($already_selected) {
if (\in_array($id, $already_selected)) {
return ['selected' => 'selected'];
}
return [];
},
]],
['add', SubmitType::class, [
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'label' => _m('Add to ' . static::PLURAL_SLUG),
'attr' => [
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'title' => _m('Add to ' . static::PLURAL_SLUG),
],
]],
]);
$add_form->handleRequest($request);
if ($add_form->isSubmitted() && $add_form->isValid()) {
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$selected = $add_form->getData()['collections'];
$removed = array_filter($already_selected, fn ($x) => !\in_array($x, $selected));
$added = array_filter($selected, fn ($x) => !\in_array($x, $already_selected));
if (\count($removed) > 0) {
$this->removeItem($user, $vars, $removed, $collections);
}
if (\count($added) > 0) {
$this->addItem($user, $vars, $added, $collections);
}
DB::flush();
throw new RedirectException();
}
// form: add to new collection
$create_form = Form::create([
['name', TextType::class, [
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'label' => _m('Add to a new ' . static::SLUG),
'attr' => [
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'placeholder' => _m('New ' . static::SLUG . ' name'),
'required' => 'required',
],
'data' => '',
]],
['create', SubmitType::class, [
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'label' => _m('Create a new ' . static::SLUG),
'attr' => [
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'title' => _m('Create a new ' . static::SLUG),
],
]],
]);
$create_form->handleRequest($request);
if ($create_form->isSubmitted() && $create_form->isValid()) {
$name = $create_form->getData()['name'];
$this->createCollection($user, $vars, $name);
DB::flush();
throw new RedirectException();
}
$res[] = Formatting::twigRenderFile(
'collection/widget_add_to.html.twig',
[
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'ctitle' => _m('Add to ' . static::PLURAL_SLUG),
'user' => $user,
'has_collections' => \count($collections) > 0,
'add_form' => $add_form->createView(),
'create_form' => $create_form->createView(),
],
);
return Event::next;
}
/**
* @param string[] $styles
*/
public function onEndShowStyles(array &$styles, string $route): EventResult
{
$styles[] = 'components/Collection/assets/css/widget.css';
$styles[] = 'components/Collection/assets/css/pages.css';
return Event::next;
}
}