class ImageFormatter extends FormatterBase {
public function settingsForm(array $form, array &$form_state) {
$image_styles = image_style_options(FALSE);
$element['image_style'] = array(
'#title' => t('Image style'),
'#type' => 'select',
'#default_value' => $this
->getSetting('image_style'),
'#empty_option' => t('None (original image)'),
'#options' => $image_styles,
);
$link_types = array(
'content' => t('Content'),
'file' => t('File'),
);
$element['image_link'] = array(
'#title' => t('Link image to'),
'#type' => 'select',
'#default_value' => $this
->getSetting('image_link'),
'#empty_option' => t('Nothing'),
'#options' => $link_types,
);
return $element;
}
public function settingsSummary() {
$summary = array();
$image_styles = image_style_options(FALSE);
unset($image_styles['']);
$image_style_setting = $this
->getSetting('image_style');
if (isset($image_styles[$image_style_setting])) {
$summary[] = t('Image style: @style', array(
'@style' => $image_styles[$image_style_setting],
));
}
else {
$summary[] = t('Original image');
}
$link_types = array(
'content' => t('Linked to content'),
'file' => t('Linked to file'),
);
$image_link_setting = $this
->getSetting('image_link');
if (isset($link_types[$image_link_setting])) {
$summary[] = $link_types[$image_link_setting];
}
return implode('<br />', $summary);
}
public function viewElements(EntityInterface $entity, $langcode, array $items) {
$elements = array();
$image_link_setting = $this
->getSetting('image_link');
if ($image_link_setting == 'content') {
$uri = $entity
->uri();
}
elseif ($image_link_setting == 'file') {
$link_file = TRUE;
}
$image_style_setting = $this
->getSetting('image_style');
foreach ($items as $delta => $item) {
if (isset($link_file)) {
$uri = array(
'path' => file_create_url($item['uri']),
'options' => array(),
);
}
$elements[$delta] = array(
'#theme' => 'image_formatter',
'#item' => $item,
'#image_style' => $image_style_setting,
'#path' => isset($uri) ? $uri : '',
);
}
return $elements;
}
}