{

public function getConfig()

{

return include sprintf('%s/config/module.config.php', __DIR__);

}

public function onBootstrap(MvcEvent $event)

{

parent::onBootstrap($event);

$acl = $this->getServiceLocator()->get('Omeka\Acl');

$acl->allow(null, ['Sharing\Controller\Index', 'Sharing\Controller\Oembed']);

}

public function install(ServiceLocatorInterface $serviceLocator)

{

$messenger = $serviceLocator->get('ControllerPluginManager')->get('messenger');

$messenger->addSuccess('Sharing options are site-specific. Site owners will need to set the options for their sites.'); // @translate

}

public function attachListeners(SharedEventManagerInterface $sharedEventManager)

{

// Add site settings.

$sharedEventManager->attach(

'Omeka\Form\SiteSettingsForm',

'form.add_elements',

[$this, 'addSiteSettingsForm']

);

$sharedEventManager->attach(

'Omeka\Form\SiteSettingsForm',

'form.add_input_filters',

[$this, 'addSiteSettingsFormFilters']

);

// Add sharing methods to public pages.

$resources = [

'Omeka\Controller\Site\Item',

'Omeka\Controller\Site\Media',

'Omeka\Controller\Site\Page',

];

foreach ($resources as $resource) {

$sharedEventManager->attach(

$resource,

'view.show.before',

[$this, 'addSharingMethods']

);

$sharedEventManager->attach(

$resource,

'view.show.after',

[$this, 'addSharingMethods']

);

}

// Add Open Graph head meta to public pages.

$resources = [

'Omeka\Controller\Site\Item',

'Omeka\Controller\Site\Media',

'Omeka\Controller\Site\Index',

'Omeka\Controller\Site\Page',

];

foreach ($resources as $resource) {

$sharedEventManager->attach(

$resource,

'view.show.after',

[$this, 'addOpenGraphHeadMeta']

);

}

// Add discoverable oEmbed head links to public pages.

$resources = [

'Omeka\Controller\Site\Item',

'Omeka\Controller\Site\Media',

'Omeka\Controller\Site\Page',

];

foreach ($resources as $resource) {

$sharedEventManager->attach(

$resource,

'view.show.after',

[$this, 'addOembedHeadLink']

);

}

}

public function addSiteSettingsForm(Event $event)

{

$siteSettings = $this->getServiceLocator()->get('Omeka\Settings\Site');

$form = $event->getTarget();

$groups = $form->getOption('element_groups');

$groups['sharing'] = 'Sharing'; // @translate

$form->setOption('element_groups', $groups);

$enabledMethods = $siteSettings->get('sharing_methods', []);

$placement = $siteSettings->get('sharing_placement', 'view.show.before');

$form->add([

'name' => 'sharing_methods',

'type' => 'multiCheckbox',

'options' => [

'element_group' => 'sharing',

'label' => 'Enable Sharing module for these methods', // @translate

'value_options' => [

'fb' => [

'label' => 'Facebook', // @translate

'value' => 'fb',

'selected' => in_array('fb', $enabledMethods),

],

'twitter' => [

'label' => 'Twitter', // @translate

'value' => 'twitter',

'selected' => in_array('twitter', $enabledMethods),

],

'tumblr' => [

'label' => 'Tumblr', // @translate

'value' => 'tumblr',

'selected' => in_array('tumblr', $enabledMethods),

],

'pinterest' => [

'label' => 'Pinterest', // @translate

'value' => 'pinterest',

'selected' => in_array('pinterest', $enabledMethods),

],

'email' => [

'label' => 'Email', // @translate

'value' => 'email',

'selected' => in_array('email', $enabledMethods),

],

'embed' => [

'label' => 'Embed codes', // @translate

'value' => 'embed',

'selected' => in_array('embed', $enabledMethods),

],

],

],

'attributes' => [

'required' => false,

],

]);

$form->add([

'name' => 'sharing_placement',

'type' => 'radio',

'options' => [

'element_group' => 'sharing',

'label' => "Sharing buttons placement on the page", // @translate

'value_options' => [

'top' => [

'label' => 'Top', // @translate

'value' => 'view.show.before',

],

'bottom' => [

'label' => 'Bottom', //@translate

'value' => 'view.show.after',

],

],

],

'attributes' => [

'required' => false,

'value' => $placement,

],

]);

}

public function addSiteSettingsFormFilters(Event $event)

{

$inputFilter = $event->getParam('inputFilter');

$inputFilter->add([

'name' => 'sharing_methods',

'required' => false,

]);

}

public function addSharingMethods(Event $event)

{

$siteSettings = $this->getServiceLocator()->get('Omeka\Settings\Site');

$enabledMethods = $siteSettings->get('sharing_methods');

$placement = $siteSettings->get('sharing_placement', 'view.show.before');

$eventName = $event->getName();

if (!empty($enabledMethods) && ($eventName == $placement)) {

$view = $event->getTarget();

$view->headScript()->appendFile('https://platform.twitter.com/widgets.js');

$view->headScript()->appendFile($view->assetUrl('js/sharing.js', 'Sharing'));

$view->headLink()->appendStylesheet($view->assetUrl('css/sharing.css', 'Sharing'));

$siteSlug = $this->getServiceLocator()->get('Application')

->getMvcEvent()->getRouteMatch()->getParam('site-slug');

echo $view->partial('share-buttons', [

'enabledMethods' => $enabledMethods,

'itemId' => isset($view->item) ? $view->item->id() : false,

'mediaId' => isset($view->media) ? $view->media->id() : false,

'pageId' => isset($view->page) ? $view->page->id() : false,

'siteSlug' => $siteSlug,

]);

$fbJavascript = "

<script>

window.fbAsyncInit = function() {

FB.init({

xfbml : true,

version : 'v2.5'

});

};

(function(d, s, id){

var js, fjs = d.getElementsByTagName(s)[0];

if (d.getElementById(id)) {return;}

js = d.createElement(s); js.id = id;

js.src = '//connect.facebook.net/en_US/sdk.js';

fjs.parentNode.insertBefore(js, fjs);

}(document, 'script', 'facebook-jssdk'));

</script>

";

$pinterestJavascript = '

<script

type="text/javascript"

async defer

src="//assets.pinterest.com/js/pinit.js"

></script>

';

$tumblrJavascript = '

<script id="tumblr-js" async src="https://assets.tumblr.com/share-button.js"></script>

';

foreach ($enabledMethods as $method) {

$js = $method . 'Javascript';

if (isset($$js)) {

echo $$js;

}

}

}

}

/**

* Add Open Graph head meta.

*

* @see https://ogp.me/

* @param Event $event

*/

public function addOpenGraphHeadMeta(Event $event)

{

$status = $this->getServiceLocator()->get('Omeka\Status');

$view = $event->getTarget();

$controller = $status->getRouteMatch()->getParam('controller');

$metaProperties = [

'og:type' => 'website',

'og:site_name' => $view->site->title(),

'og:title' => $view->headTitle()->renderTitle(),

'og:url' => $view->serverUrl(true),

];

switch ($controller) {

case 'Omeka\Controller\Site\Item':

case 'Omeka\Controller\Site\Media':

$metaProperties['og:description'] = $view->resource->displayDescription();

if ($primaryMedia = $view->resource->primaryMedia()) {

$metaProperties['og:image'] = $primaryMedia->thumbnailUrl('large');

$mediaType = $primaryMedia->mediaType();

if ($mediaType === null) {

break;

}

$mediaMainType = strstr($mediaType, '/', true);

switch ($mediaMainType) {

case 'audio':

$metaProperties['og:audio'] = $primaryMedia->originalUrl();

break;

case 'video':

$metaProperties['og:video'] = $primaryMedia->originalUrl();

break;

}

}

break;

case 'Omeka\Controller\Site\Page':

foreach ($view->page->blocks() as $block) {

foreach ($block->attachments() as $attachment) {

$item = $attachment->item();

if ($item && ($primaryMedia = $item->primaryMedia())) {

$metaProperties['og:image'] = $primaryMedia->thumbnailUrl('large');

break 2;

}

}

}

break;

}

foreach ($metaProperties as $metaProperty => $metaContent) {

if ($metaContent) {

$view->headMeta()->appendProperty($metaProperty, $metaContent);

}

}

}

/**

* Add oEmbed head link.

*

* @see https://oembed.com/

* @param Event $event

*/

public function addOembedHeadLink(Event $event)

{

$status = $this->getServiceLocator()->get('Omeka\Status');

$view = $event->getTarget();

$controller = $status->getRouteMatch()->getParam('controller');

$href = $view->url('oembed', [], ['force_canonical' => true, 'query' => ['url' => $view->serverUrl(true)]]);

$view->headLink([

'rel' => 'alternate',

'type' => 'application/json+oembed',

'title' => $view->headTitle()->renderTitle(),

'href' => $href,

]);

}