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<?php
namespace dokuwiki\Ui\Media;
use dokuwiki\File\MediaFile;
class Display
{
/** @var MediaFile */
protected $mediaFile;
/** @var string should IDs be shown relative to this namespace? Used in search results */
protected $relativeDisplay;
/** @var bool scroll to this file on display? */
protected $scrollIntoView = false;
/**
* Display constructor.
* @param MediaFile $mediaFile
*/
public function __construct(MediaFile $mediaFile)
{
$this->mediaFile = $mediaFile;
}
/**
* Get the HTML to display a preview image if possible, otherwise show an icon
*
* @param int $w bounding box width to resize pixel based images to
* @param int $h bounding box height to resize pixel based images to
* @return string
*/
public function getPreviewHtml($w, $h)
{
if ($this->mediaFile->isImage()) {
$src = ml($this->mediaFile->getId(), ['w' => $w, 'h' => $h]);
} else {
$src = $this->getIconUrl();
}
$attr = [
'alt' => $this->mediaFile->getDisplayName(),
'loading' => 'lazy',
'width' => $w,
'height' => $h,
];
return '<img src="' . $src . '" ' . buildAttributes($attr) . ' />';
}
/**
* Return the URL to the icon for this file
*
* @return string
*/
public function getIconUrl()
{
$link = 'lib/images/fileicons/svg/' . $this->mediaFile->getIcoClass() . '.svg';
if (!file_exists(DOKU_INC . $link)) $link = 'lib/images/fileicons/svg/file.svg';
return DOKU_BASE . $link;
}
/**
* Show IDs relative to this namespace
*
* @param string|null $ns Use null to disable
*/
public function relativeDisplay($ns)
{
$this->relativeDisplay = $ns;
}
/**
* Scroll to this file on display?
*
* @param bool $set
*/
public function scrollIntoView($set = true)
{
$this->scrollIntoView = $set;
}
/** @return string */
protected function formatDate()
{
return dformat($this->mediaFile->getLastModified());
}
/**
* Output the image dimension if any
*
* @param string $empty what to show when no dimensions are available
* @return string
*/
protected function formatDimensions($empty = ' ')
{
$w = $this->mediaFile->getWidth();
$h = $this->mediaFile->getHeight();
if ($w && $h) {
return $w . '×' . $h;
} else {
return $empty;
}
}
/** @return string */
protected function formatFileSize()
{
return filesize_h($this->mediaFile->getFileSize());
}
/** @return string */
protected function formatDisplayName()
{
if ($this->relativeDisplay !== null) {
$id = $this->mediaFile->getId();
if (str_starts_with($id, $this->relativeDisplay)) {
$id = substr($id, strlen($this->relativeDisplay));
}
return ltrim($id, ':');
} else {
return $this->mediaFile->getDisplayName();
}
}
}
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