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<?php
if ( ! defined( 'MEDIAWIKI' ) )
die( 1 );
/**
* @package MediaWiki
*/
/**
* Image gallery
*
* Add images to the gallery using add(), then render that list to HTML using toHTML().
*
* @package MediaWiki
*/
class ImageGallery
{
var $mImages, $mShowBytes, $mShowFilename;
var $mCaption = false;
var $mSkin = false;
/**
* Is the gallery on a wiki page (i.e. not a special page)
*/
var $mParsing;
/**
* Create a new image gallery object.
*/
function ImageGallery( ) {
$this->mImages = array();
$this->mShowBytes = true;
$this->mShowFilename = true;
$this->mParsing = false;
}
/**
* Set the "parse" bit so we know to hide "bad" images
*/
function setParsing( $val = true ) {
$this->mParsing = $val;
}
/**
* Set the caption (as plain text)
*
* @param $caption Caption
*/
function setCaption( $caption ) {
$this->mCaption = htmlspecialchars( $caption );
}
/**
* Set the caption (as HTML)
*
* @param $caption Caption
*/
function setCaptionHtml( $caption ) {
$this->mCaption = $caption;
}
/**
* Instruct the class to use a specific skin for rendering
*
* @param $skin Skin object
*/
function useSkin( $skin ) {
$this->mSkin =& $skin;
}
/**
* Return the skin that should be used
*
* @return Skin object
*/
function getSkin() {
if( !$this->mSkin ) {
global $wgUser;
$skin =& $wgUser->getSkin();
} else {
$skin =& $this->mSkin;
}
return $skin;
}
/**
* Add an image to the gallery.
*
* @param $image Image object that is added to the gallery
* @param $html String: additional HTML text to be shown. The name and size of the image are always shown.
*/
function add( $image, $html='' ) {
$this->mImages[] = array( &$image, $html );
wfDebug( "ImageGallery::add " . $image->getName() . "\n" );
}
/**
* Add an image at the beginning of the gallery.
*
* @param $image Image object that is added to the gallery
* @param $html String: Additional HTML text to be shown. The name and size of the image are always shown.
*/
function insert( $image, $html='' ) {
array_unshift( $this->mImages, array( &$image, $html ) );
}
/**
* isEmpty() returns true if the gallery contains no images
*/
function isEmpty() {
return empty( $this->mImages );
}
/**
* Enable/Disable showing of the file size of an image in the gallery.
* Enabled by default.
*
* @param $f Boolean: set to false to disable.
*/
function setShowBytes( $f ) {
$this->mShowBytes = ( $f == true);
}
/**
* Enable/Disable showing of the filename of an image in the gallery.
* Enabled by default.
*
* @param $f Boolean: set to false to disable.
*/
function setShowFilename( $f ) {
$this->mShowFilename = ( $f == true);
}
/**
* Return a HTML representation of the image gallery
*
* For each image in the gallery, display
* - a thumbnail
* - the image name
* - the additional text provided when adding the image
* - the size of the image
*
*/
function toHTML() {
global $wgLang, $wgGenerateThumbnailOnParse;
$sk = $this->getSkin();
$s = '<table class="gallery" cellspacing="0" cellpadding="0">';
if( $this->mCaption )
$s .= '<td class="galleryheader" colspan="4"><big>' . $this->mCaption . '</big></td>';
$i = 0;
foreach ( $this->mImages as $pair ) {
$img =& $pair[0];
$text = $pair[1];
$nt = $img->getTitle();
if( $nt->getNamespace() != NS_IMAGE ) {
# We're dealing with a non-image, spit out the name and be done with it.
$thumbhtml = '<div style="height: 152px;">' . htmlspecialchars( $nt->getText() ) . '</div>';
}
else if( $this->mParsing && wfIsBadImage( $nt->getDBkey() ) ) {
# The image is blacklisted, just show it as a text link.
$thumbhtml = '<div style="height: 152px;">'
. $sk->makeKnownLinkObj( $nt, htmlspecialchars( $nt->getText() ) ) . '</div>';
} else if( !( $thumb = $img->getThumbnail( 120, 120, $wgGenerateThumbnailOnParse ) ) ) {
# Error generating thumbnail.
$thumbhtml = '<div style="height: 152px;">'
. htmlspecialchars( $img->getLastError() ) . '</div>';
}
else {
$vpad = floor( ( 150 - $thumb->height ) /2 ) - 2;
$thumbhtml = '<div class="thumb" style="padding: ' . $vpad . 'px 0;">'
. $sk->makeKnownLinkObj( $nt, $thumb->toHtml() ) . '</div>';
}
//TODO
//$ul = $sk->makeLink( $wgContLang->getNsText( Namespace::getUser() ) . ":{$ut}", $ut );
if( $this->mShowBytes ) {
if( $img->exists() ) {
$nb = wfMsgExt( 'nbytes', array( 'parsemag', 'escape'),
$wgLang->formatNum( $img->getSize() ) );
} else {
$nb = wfMsgHtml( 'filemissing' );
}
$nb = "$nb<br />\n";
} else {
$nb = '';
}
$textlink = $this->mShowFilename ?
$sk->makeKnownLinkObj( $nt, htmlspecialchars( $wgLang->truncate( $nt->getText(), 20, '...' ) ) ) . "<br />\n" :
'' ;
# ATTENTION: The newline after <div class="gallerytext"> is needed to accommodate htmltidy which
# in version 4.8.6 generated crackpot html in its absence, see:
# http://bugzilla.wikimedia.org/show_bug.cgi?id=1765 -Ævar
$s .= ($i%4==0) ? '<tr>' : '';
$s .= '<td><div class="gallerybox">' . $thumbhtml
. '<div class="gallerytext">' . "\n" . $textlink . $text . $nb
. "</div></div></td>\n";
$s .= ($i%4==3) ? '</tr>' : '';
$i++;
}
if( $i %4 != 0 ) {
$s .= "</tr>\n";
}
$s .= '</table>';
return $s;
}
/**
* @return int Number of images in the gallery
*/
public function count() {
return count( $this->mImages );
}
} //class
?>
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