mute.php

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<?php
$entity = elgg_extract('entity', $vars);
$recipient = elgg_extract('recipient', $vars);
if (!$entity instanceof \ElggEntity || !$recipient instanceof \ElggUser) {
    return;
}

$get_language_key = function(\ElggEntity $entity, string $default_postfix) {
    $keys = [
        "notifications:mute:{$entity->type}:{$entity->subtype}",
        "notifications:mute:{$entity->type}",
        "notifications:mute:{$default_postfix}",
    ];
    
    foreach ($keys as $key) {
        if (elgg_language_key_exists($key)) {
            return $key;
        }
    }
};

$checkboxes = '';
$mute_guids = [];

if ($entity instanceof \ElggComment) {
    $commented_entity = $entity->getContainerEntity();
    $mute_guids[] = $commented_entity->guid;
    
    $checkboxes .= elgg_view_field([
        '#type' => 'checkbox',
        '#label' => elgg_echo($get_language_key($commented_entity, 'entity'), [$commented_entity->getDisplayName()]),
        'name' => "mute[{$commented_entity->guid}]",
        'value' => 1,
        'switch' => true,
        'checked' => $commented_entity->hasMutedNotifications($recipient->guid),
    ]);
} elseif (!elgg_is_empty($entity->getDisplayName())) {
    $mute_guids[] = $entity->guid;
    
    $checkboxes .= elgg_view_field([
        '#type' => 'checkbox',
        '#label' => elgg_echo($get_language_key($entity, 'entity'), [$entity->getDisplayName()]),
        'name' => "mute[{$entity->guid}]",
        'value' => 1,
        'switch' => true,
        'checked' => $entity->hasMutedNotifications($recipient->guid),
    ]);
}

$container = ($entity instanceof ElggComment) ? $entity->getContainerEntity()->getContainerEntity() : $entity->getContainerEntity();
if (($container instanceof \ElggGroup || $container instanceof \ElggUser) && !in_array($container->guid, $mute_guids)) {
    $mute_guids[] = $container->guid;
    
    $checkboxes .= elgg_view_field([
        '#type' => 'checkbox',
        '#label' => elgg_echo($get_language_key($container, 'container'), [$container->getDisplayName()]),
        'name' => "mute[{$container->guid}]",
        'value' => 1,
        'switch' => true,
        'checked' => $container->hasMutedNotifications($recipient->guid),
    ]);
}

$owner = $entity->getOwnerEntity();
if (($owner instanceof \ElggGroup || $owner instanceof \ElggUser) && !in_array($owner->guid, $mute_guids)) {
    $mute_guids[] = $owner->guid;
    
    $checkboxes .= elgg_view_field([
        '#type' => 'checkbox',
        '#label' => elgg_echo($get_language_key($owner, 'owner'), [$owner->getDisplayName()]),
        'name' => "mute[{$owner->guid}]",
        'value' => 1,
        'switch' => true,
        'checked' => $owner->hasMutedNotifications($recipient->guid),
    ]);
}

$actor = elgg_extract('actor', $vars);
if (($actor instanceof \ElggGroup || $actor instanceof \ElggUser) && !in_array($actor->guid, $mute_guids)) {
    $mute_guids[] = $actor->guid;
    
    $checkboxes .= elgg_view_field([
        '#type' => 'checkbox',
        '#label' => elgg_echo($get_language_key($actor, 'actor'), [$actor->getDisplayName()]),
        'name' => "mute[{$actor->guid}]",
        'value' => 1,
        'switch' => true,
        'checked' => $actor->hasMutedNotifications($recipient->guid),
    ]);
}

if (empty($checkboxes)) {
    // no content to show
    return;
}

echo elgg_view_field([
    '#type' => 'hidden',
    'name' => 'entity_guid',
    'value' => $entity->guid,
]);

echo elgg_view_field([
    '#type' => 'hidden',
    'name' => 'recipient_guid',
    'value' => $recipient->guid,
]);

// protect form from manipulation between requests
$hmac = elgg_build_hmac([
    'entity_guid' => $entity->guid,
    'recipient_guid' => $recipient->guid,
]);
echo elgg_view_field([
    '#type' => 'hidden',
    'name' => 'hmac_token',
    'value' => $hmac->getToken(),
]);

echo elgg_view('output/longtext', [
    'value' => elgg_echo('notifications:mute:description'),
]);

echo $checkboxes;

$footer = elgg_view_field([
    '#type' => 'submit',
    'text' => elgg_echo('save'),
]);

elgg_set_form_footer($footer);