silverstripe-framework/Forms/HTMLEditor/HTMLEditorField_Embed.php

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<?php
namespace SilverStripe\Forms\HTMLEditor;
use SilverStripe\Assets\File;
use SilverStripe\Control\Controller;
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use SilverStripe\Control\HTTPResponse_Exception;
use SilverStripe\Forms\FieldList;
use SilverStripe\Forms\TextField;
use Embed\Adapters\AdapterInterface;
use Embed\Embed;
/**
* Encapsulation of an embed tag, linking to an external media source.
*
* @see Embed
*/
class HTMLEditorField_Embed extends HTMLEditorField_File
{
private static $casting = array(
'Type' => 'Varchar',
'Info' => 'Varchar'
);
/**
* Embed result
*
* @var Embed
*/
protected $embed;
public function __construct($url, File $file = null)
{
parent::__construct($url, $file);
$this->embed = Embed::create($url);
if (!$this->embed) {
$controller = Controller::curr();
$response = $controller->getResponse();
$response->addHeader('X-Status',
rawurlencode(_t(
'HTMLEditorField.URLNOTANOEMBEDRESOURCE',
"The URL '{url}' could not be turned into a media resource.",
"The given URL is not a valid Oembed resource; the embed element couldn't be created.",
array('url' => $url)
)));
$response->setStatusCode(404);
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throw new HTTPResponse_Exception($response);
}
}
/**
* Get file-edit fields for this filed
*
* @return FieldList
*/
public function getFields()
{
$fields = parent::getFields();
if ($this->Type === 'photo') {
$fields->insertBefore('CaptionText', new TextField(
'AltText',
_t('HTMLEditorField.IMAGEALTTEXT', 'Alternative text (alt) - shown if image can\'t be displayed'),
$this->Title,
80
));
$fields->insertBefore('CaptionText', new TextField(
'Title',
_t('HTMLEditorField.IMAGETITLE', 'Title text (tooltip) - for additional information about the image')
));
}
return $fields;
}
/**
* Get width of this Embed
*
* @return int
*/
public function getWidth()
{
return $this->embed->width ?: 100;
}
/**
* Get height of this Embed
*
* @return int
*/
public function getHeight()
{
return $this->embed->height ?: 100;
}
public function getPreviewURL()
{
// Use thumbnail url
if ($this->embed->image) {
return $this->embed->image;
}
// Use direct image type
if ($this->getType() == 'photo' && !empty($this->embed->url)) {
return $this->embed->url;
}
// Default media
return FRAMEWORK_DIR . '/client/dist/images/src/default_media.png';
}
public function getName()
{
if ($this->embed->title) {
return $this->embed->title;
} else {
return parent::getName();
}
}
/**
* Get Embed type
*
* @return string
*/
public function getType()
{
return $this->embed->type;
}
/**
* Get filetype
*
* @return string
*/
public function getFileType()
{
return $this->getType()
?: parent::getFileType();
}
/**
* @return AdapterInterface
*/
public function getEmbed()
{
return $this->embed;
}
public function appCategory()
{
return 'embed';
}
/**
* Info for this Embed
*
* @return string
*/
public function getInfo()
{
return $this->embed->info;
}
}