File->setAllowedCategories('image/supported');
}
public function getCMSFields() {
$path = '/' . dirname($this->getFilename());
$previewLink = Convert::raw2att($this->PreviewLink());
$image = "![](\"{$previewLink}\")
";
$link = $this->Link();
$content = Tab::create('Main',
HeaderField::create('TitleHeader', $this->Title, 1)
->addExtraClass('editor__heading'),
LiteralField::create("ImageFull", $image)
->addExtraClass('editor__file-preview'),
TabSet::create('Editor',
Tab::create('Details',
TextField::create("Title", $this->fieldLabel('Title')),
TextField::create("Name", $this->fieldLabel('Filename')),
ReadonlyField::create(
"Path",
_t('AssetTableField.PATH', 'Path'),
(($path !== '/.') ? $path : '') . '/'
),
HTMLReadonlyField::create(
'ClickableURL',
_t('AssetTableField.URL','URL'),
sprintf('%s',
'font-icon-link btn--icon-large form-control-static__icon', $link, $link)
)
),
Tab::create('Usage',
DatetimeField::create(
"Created",
_t('AssetTableField.CREATED', 'First uploaded')
)->setReadonly(true),
DatetimeField::create(
"LastEdited",
_t('AssetTableField.LASTEDIT', 'Last changed')
)->setReadonly(true)
)
),
HiddenField::create('ID', $this->ID)
);
if ($dimensions = $this->getDimensions()) {
$content->insertAfter(
'TitleHeader',
LiteralField::create(
"DisplaySize",
sprintf('%spx, %s
',
$dimensions, $this->getSize())
)
);
}
$fields = FieldList::create(TabSet::create('Root', $content));
$this->extend('updateCMSFields', $fields);
return $fields;
}
public function getIsImage() {
return true;
}
/**
* Replace"[image id=n]" shortcode with an image reference.
* Permission checks will be enforced by the file routing itself.
*
* @param array $args Arguments passed to the parser
* @param string $content Raw shortcode
* @param ShortcodeParser $parser Parser
* @param string $shortcode Name of shortcode used to register this handler
* @param array $extra Extra arguments
* @return string Result of the handled shortcode
*/
public static function handle_shortcode($args, $content, $parser, $shortcode, $extra = array()) {
// Find appropriate record, with fallback for error handlers
$record = static::find_shortcode_record($args, $errorCode);
if($errorCode) {
$record = static::find_error_record($errorCode);
}
if (!$record) {
return null; // There were no suitable matches at all.
}
// Check if a resize is required
$src = $record->Link();
if($record instanceof Image) {
$width = isset($args['width']) ? $args['width'] : null;
$height = isset($args['height']) ? $args['height'] : null;
$hasCustomDimensions = ($width && $height);
if ($hasCustomDimensions && (($width != $record->getWidth()) || ($height != $record->getHeight()))) {
$resized = $record->ResizedImage($width, $height);
// Make sure that the resized image actually returns an image
if($resized) {
$src = $resized->getURL();
}
}
}
// Build the HTML tag
$attrs = array_merge(
// Set overrideable defaults
['src' => '', 'alt' => $record->Title],
// Use all other shortcode arguments
$args,
// But enforce some values
['id' => '', 'src' => $src]
);
// Clean out any empty attributes
$attrs = array_filter($attrs, function($v) {return (bool)$v;});
// Condense to HTML attribute string
$attrsStr = join(' ', array_map(function($name) use ($attrs) {
return Convert::raw2att($name) . '="' . Convert::raw2att($attrs[$name]) . '"';
}, array_keys($attrs)));
return '![]()
';
}
/**
* Regenerates "[image id=n]" shortcode with new src attribute prior to being edited within the CMS.
*
* @param array $args Arguments passed to the parser
* @param string $content Raw shortcode
* @param ShortcodeParser $parser Parser
* @param string $shortcode Name of shortcode used to register this handler
* @param array $extra Extra arguments
* @return string Result of the handled shortcode
*/
public static function regenerate_shortcode($args, $content, $parser, $shortcode, $extra = array()) {
// Check if there is a suitable record
$record = static::find_shortcode_record($args);
if($record) {
$args['src'] = $record->getURL();
}
// Rebuild shortcode
$parts = array();
foreach($args as $name => $value) {
$htmlValue = Convert::raw2att($value ?: $name);
$parts[] = sprintf('%s="%s"', $name, $htmlValue);
}
return sprintf("[%s %s]", $shortcode, implode(' ', $parts));
}
/**
* Helper method to regenerate all shortcode links.
*
* @param string $value HTML value
* @return string value with links resampled
*/
public static function regenerate_html_links($value) {
// Create a shortcode generator which only regenerates links
$regenerator = ShortcodeParser::get('regenerator');
return $regenerator->parse($value);
}
public function PreviewLink($action = null) {
// Since AbsoluteLink can whitelist protected assets,
// do permission check first
if(!$this->canView()) {
return false;
}
// Size to width / height
$width = (int)$this->config()->get('asset_preview_width');
$height = (int)$this->config()->get('asset_preview_height');
$resized = $this->FitMax($width, $height);
if ($resized && $resized->exists()) {
$link = $resized->getAbsoluteURL();
} else {
$link = $this->getIcon();
}
$this->extend('updatePreviewLink', $link, $action);
return $link;
}
}