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PhabricatorSubscriptionsUIEventListener.php
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PhabricatorSubscriptionsUIEventListener.php
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<?php
final class PhabricatorSubscriptionsUIEventListener
extends PhutilEventListener {
public function register() {
$this->listen(PhabricatorEventType::TYPE_UI_DIDRENDERACTIONS);
}
public function handleEvent(PhutilEvent $event) {
switch ($event->getType()) {
case PhabricatorEventType::TYPE_UI_DIDRENDERACTIONS:
$this->handleActionEvent($event);
break;
}
}
private function handleActionEvent($event) {
$user = $event->getUser();
$object = $event->getValue('object');
if (!$object || !$object->getPHID()) {
// No object, or the object has no PHID yet. No way to subscribe.
return;
}
if (!($object instanceof PhabricatorSubscribableInterface)) {
// This object isn't subscribable.
return;
}
if ($object->isAutomaticallySubscribed($user->getPHID())) {
$sub_action = id(new PhabricatorActionView())
->setWorkflow(true)
->setUser($user)
->setDisabled(true)
->setRenderAsForm(true)
->setHref('/subscriptions/add/'.$object->getPHID().'/')
->setName('Automatically Subscribed')
->setIcon('subscribe-auto');
} else {
$subscribed = false;
if ($user->isLoggedIn()) {
$src_phid = $object->getPHID();
$dst_phid = $user->getPHID();
$edge_type = PhabricatorEdgeConfig::TYPE_OBJECT_HAS_SUBSCRIBER;
$edges = id(new PhabricatorEdgeQuery())
->withSourcePHIDs(array($src_phid))
->withEdgeTypes(array($edge_type))
->withDestinationPHIDs(array($user->getPHID()))
->execute();
$subscribed = isset($edges[$src_phid][$edge_type][$dst_phid]);
}
if ($subscribed) {
$sub_action = id(new PhabricatorActionView())
->setUser($user)
->setWorkflow(true)
->setRenderAsForm(true)
->setHref('/subscriptions/delete/'.$object->getPHID().'/')
->setName('Unsubscribe')
->setIcon('subscribe-delete');
} else {
$sub_action = id(new PhabricatorActionView())
->setUser($user)
->setWorkflow(true)
->setRenderAsForm(true)
->setHref('/subscriptions/add/'.$object->getPHID().'/')
->setName('Subscribe')
->setIcon('subscribe-add');
}
if (!$user->isLoggedIn()) {
$sub_action->setDisabled(true);
}
}
$actions = $event->getValue('actions');
$actions[] = $sub_action;
$event->setValue('actions', $actions);
}
}

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PhabricatorSubscriptionsUIEventListener.php (2 KB)

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