-
<?php
-/**
- * @package MediaWiki
- */
+if ( ! defined( 'MEDIAWIKI' ) )
+ die( 1 );
/**
- * This is not a valid entry point, perform no further processing unless MEDIAWIKI is defined
*/
-if( defined( 'MEDIAWIKI' ) ) {
-
/**
* Image gallery
- *
+ *
* Add images to the gallery using add(), then render that list to HTML using toHTML().
*
- * @package MediaWiki
+ * @addtogroup Media
*/
class ImageGallery
{
var $mImages, $mShowBytes, $mShowFilename;
+ var $mCaption = false;
+ var $mSkin = false;
+ var $mRevisionId = 0;
+
+ /**
+ * Is the gallery on a wiki page (i.e. not a special page)
+ */
+ var $mParsing;
+
+ /**
+ * Contextual title, used when images are being screened
+ * against the bad image list
+ */
+ private $contextTitle = false;
+
+ private $mPerRow = 4; // How many images wide should the gallery be?
+ private $mWidths = 120, $mHeights = 120; // How wide/tall each thumbnail should be
- /**
+ /**
* Create a new image gallery object.
*/
- function ImageGallery( ) {
+ function __construct( ) {
$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
+ */
+ public function setCaptionHtml( $caption ) {
+ $this->mCaption = $caption;
+ }
+
+ /**
+ * Set how many images will be displayed per row.
+ *
+ * @param int $num > 0; invalid numbers will be rejected
+ */
+ public function setPerRow( $num ) {
+ if ($num > 0) {
+ $this->mPerRow = (int)$num;
+ }
+ }
+
+ /**
+ * Set how wide each image will be, in pixels.
+ *
+ * @param int $num > 0; invalid numbers will be ignored
+ */
+ public function setWidths( $num ) {
+ if ($num > 0) {
+ $this->mWidths = (int)$num;
+ }
+ }
+
+ /**
+ * Set how high each image will be, in pixels.
+ *
+ * @param int $num > 0; invalid numbers will be ignored
+ */
+ public function setHeights( $num ) {
+ if ($num > 0) {
+ $this->mHeights = (int)$num;
+ }
+ }
+
+ /**
+ * 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 Image object that is added to the gallery
- * @param string $text Additional text to be shown. The name and size of the image are always shown.
+ * @param $title Title object of the image 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, $text='' ) {
- $this->mImages[] = array( &$image, $text );
+ function add( $title, $html='' ) {
+ if ( $title instanceof File ) {
+ // Old calling convention
+ $title = $title->getTitle();
+ }
+ $this->mImages[] = array( $title, $html );
+ wfDebug( "ImageGallery::add " . $title->getText() . "\n" );
+ }
+
+ /**
+ * Add an image at the beginning of the gallery.
+ *
+ * @param $title Title object of the image 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( $title, $html='' ) {
+ if ( $title instanceof File ) {
+ // Old calling convention
+ $title = $title->getTitle();
+ }
+ array_unshift( $this->mImages, array( &$title, $html ) );
}
+
/**
- * isEmpty() returns false iff the gallery doesn't contain any images
+ * 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 boolean $f set to false to disable
+ *
+ * @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 boolean $f set to false to disable
+ *
+ * @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
*
*/
function toHTML() {
- global $wgLang, $wgContLang, $wgUser;
+ global $wgLang;
- $sk = $wgUser->getSkin();
+ $sk = $this->getSkin();
- $s = '<table style="border:solid 1px #DDDDDD; cellspacing:0; cellpadding:0; margin:1em;">';
+ $s = '<table class="gallery" cellspacing="0" cellpadding="0">';
+ if( $this->mCaption )
+ $s .= "\n\t<caption>{$this->mCaption}</caption>";
+
+ $params = array( 'width' => $this->mWidths, 'height' => $this->mHeights );
$i = 0;
foreach ( $this->mImages as $pair ) {
- $img =& $pair[0];
+ $nt = $pair[0];
$text = $pair[1];
+
+ # Give extensions a chance to select the file revision for us
+ $time = false;
+ wfRunHooks( 'BeforeGalleryFindFile', array( &$this, &$nt, &$time ) );
+
+ $img = wfFindFile( $nt, $time );
- $name = $img->getName();
- $nt = $img->getTitle();
+ if( $nt->getNamespace() != NS_IMAGE || !$img ) {
+ # We're dealing with a non-image, spit out the name and be done with it.
+ $thumbhtml = "\n\t\t\t".'<div style="height: '.($this->mHeights*1.25+2).'px;">'
+ . htmlspecialchars( $nt->getText() ) . '</div>';
+ } elseif( $this->mParsing && wfIsBadImage( $nt->getDBkey(), $this->getContextTitle() ) ) {
+ # The image is blacklisted, just show it as a text link.
+ $thumbhtml = "\n\t\t\t".'<div style="height: '.($this->mHeights*1.25+2).'px;">'
+ . $sk->makeKnownLinkObj( $nt, htmlspecialchars( $nt->getText() ) ) . '</div>';
+ } elseif( !( $thumb = $img->transform( $params ) ) ) {
+ # Error generating thumbnail.
+ $thumbhtml = "\n\t\t\t".'<div style="height: '.($this->mHeights*1.25+2).'px;">'
+ . htmlspecialchars( $img->getLastError() ) . '</div>';
+ } else {
+ $vpad = floor( ( 1.25*$this->mHeights - $thumb->height ) /2 ) - 2;
+ $thumbhtml = "\n\t\t\t".'<div class="thumb" style="padding: ' . $vpad . 'px 0; width: '.($this->mWidths+30).'px;">'
+ . $sk->makeKnownLinkObj( $nt, $thumb->toHtml() ) . '</div>';
+ }
//TODO
//$ul = $sk->makeLink( $wgContLang->getNsText( Namespace::getUser() ) . ":{$ut}", $ut );
- $nb = $this->mShowBytes ?
- wfMsg( "nbytes", $wgLang->formatNum( $img->getSize() ) ) . '<br />' :
- '' ;
+ if( $this->mShowBytes ) {
+ if( $img ) {
+ $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, Language::truncate( $nt->getText(), 20, '...' ) ) . '<br />' :
+ $sk->makeKnownLinkObj( $nt, htmlspecialchars( $wgLang->truncate( $nt->getText(), 20, '...' ) ) ) . "<br />\n" :
'' ;
- $s .= ($i%4==0) ? '<tr>' : '';
- $s .= '<td valign="top" width="150px" style="background-color:#F0F0F0;">' .
- '<table width="100%" height="150px">'.
- '<tr><td align="center" valign="center" style="background-color:#F8F8F8;border:solid 1px #888888;">' .
- $sk->makeKnownLinkObj( $nt, '<img src="'.$img->createThumb(120,120).'" alt="">' ) . '</td></tr></table> ' .
- $textlink . $text . $nb;
-
- $s .= '</td>' . (($i%4==3) ? '</tr>' : '');
+ # 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
- $i++;
+ if ( $i % $this->mPerRow == 0 ) {
+ $s .= "\n\t<tr>";
+ }
+ $s .=
+ "\n\t\t" . '<td><div class="gallerybox" style="width: '.($this->mWidths*1.25).'px;">'
+ . $thumbhtml
+ . "\n\t\t\t" . '<div class="gallerytext">' . "\n"
+ . $textlink . $text . $nb
+ . "\n\t\t\t</div>"
+ . "\n\t\t</div></td>";
+ if ( $i % $this->mPerRow == $this->mPerRow - 1 ) {
+ $s .= "\n\t</tr>";
+ }
+ ++$i;
+ }
+ if( $i % $this->mPerRow != 0 ) {
+ $s .= "\n\t</tr>";
}
- $s .= '</table>';
+ $s .= "\n</table>";
return $s;
}
/**
- * Transparently generates an image gallery from a text with one line per image.
- * text labels may be given by using |-style alternative text. E.g.
- * Image:one.jpg|The number "1"
- * Image:tree.jpg|A tree
- * given as text will return a gallery with two images, labeled 'The number "1"' and
- * 'A tree'.
- */
- function newFromTextList( $text ) {
- $ig = new ImageGallery();
- $ig->setShowBytes( false );
- $ig->setShowFilename( false );
- $lines = explode( "\n", $text );
- foreach ( $lines as $line ) {
- preg_match( "/^([^|]+)(\\|(.*))?$/", $line, $matches );
- # Skip empty lines
- if ( count( $matches ) == 0 ) {
- continue;
- }
- $nt = Title::newFromURL( $matches[1] );
- if ( isset( $matches[3] ) ) {
- $label = $matches[3];
- } else {
- $label = '';
- }
- $ig->add( Image::newFromTitle( $nt ), $label );
- }
- return $ig;
+ * @return int Number of images in the gallery
+ */
+ public function count() {
+ return count( $this->mImages );
+ }
+
+ /**
+ * Set the contextual title
+ *
+ * @param Title $title Contextual title
+ */
+ public function setContextTitle( $title ) {
+ $this->contextTitle = $title;
+ }
+
+ /**
+ * Get the contextual title, if applicable
+ *
+ * @return mixed Title or false
+ */
+ public function getContextTitle() {
+ return is_object( $this->contextTitle ) && $this->contextTitle instanceof Title
+ ? $this->contextTitle
+ : false;
}
-
} //class
-
-
-
-
-} // defined( 'MEDIAWIKI' )
?>