API: (bug 17563) Fix regression from r46845 that changed the output for list=backlink...
[lhc/web/wiklou.git] / includes / ImagePage.php
index b2cade2..9eed236 100644 (file)
@@ -22,6 +22,12 @@ class ImagePage extends Article {
                $this->dupes = null;
                $this->repo = null;
        }
+       
+       public function setFile( $file ) {
+               $this->displayImg = $file;
+               $this->img = $file;
+               $this->fileLoaded = true;
+       }
 
        protected function loadFile() {
                if( $this->fileLoaded ) {
@@ -57,7 +63,7 @@ class ImagePage extends Article {
                global $wgOut, $wgShowEXIF, $wgRequest, $wgUser;
                $this->loadFile();
 
-               if( $this->mTitle->getNamespace() == NS_IMAGE && $this->img->getRedirected() ) {
+               if( $this->mTitle->getNamespace() == NS_FILE && $this->img->getRedirected() ) {
                        if( $this->mTitle->getDBkey() == $this->img->getName() ) {
                                // mTitle is the same as the redirect target so ask Article
                                // to perform the redirect for us.
@@ -66,7 +72,7 @@ class ImagePage extends Article {
                                // mTitle is not the same as the redirect target so it is 
                                // probably the redirect page itself. Fake the redirect symbol
                                $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
-                               $wgOut->addHTML( $this->viewRedirect( Title::makeTitle( NS_IMAGE, $this->img->getName() ),
+                               $wgOut->addHTML( $this->viewRedirect( Title::makeTitle( NS_FILE, $this->img->getName() ),
                                        /* $appendSubtitle */ true, /* $forceKnown */ true ) );
                                $this->viewUpdates();
                                return;
@@ -76,7 +82,7 @@ class ImagePage extends Article {
                $diff = $wgRequest->getVal( 'diff' );
                $diffOnly = $wgRequest->getBool( 'diffonly', $wgUser->getOption( 'diffonly' ) );
 
-               if( $this->mTitle->getNamespace() != NS_IMAGE || ( isset( $diff ) && $diffOnly ) )
+               if( $this->mTitle->getNamespace() != NS_FILE || ( isset( $diff ) && $diffOnly ) )
                        return Article::view();
 
                if( $wgShowEXIF && $this->displayImg->exists() ) {
@@ -87,10 +93,11 @@ class ImagePage extends Article {
                        $showmeta = false;
                }
 
-               if( $this->displayImg->exists() )
+               if( !$diff && $this->displayImg->exists() )
                        $wgOut->addHTML( $this->showTOC($showmeta) );
 
-               $this->openShowImage();
+               if( !$diff )
+                       $this->openShowImage();
 
                # No need to display noarticletext, we use our own message, output in openShowImage()
                if( $this->getID() ) {
@@ -110,8 +117,6 @@ class ImagePage extends Article {
                                $wgOut->addWikiText( $fol );
                        }
                        $wgOut->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . '</div>' );
-               } else {
-                       $this->checkSharedConflict();
                }
 
                $this->closeShowImage();
@@ -122,17 +127,13 @@ class ImagePage extends Article {
                        array( 'id' => 'filelinks' ),
                        wfMsg( 'imagelinks' ) ) . "\n" );
                $this->imageDupes();
-               // TODO: We may want to find local images redirecting to a foreign 
-               // file: "The following local files redirect to this file"
-               if( $this->img->isLocal() ) {
-                       $this->imageRedirects();
-               }
+               $this->imageRedirects();
                $this->imageLinks();
 
                if( $showmeta ) {
                        global $wgStylePath, $wgStyleVersion;
-                       $expand = htmlspecialchars( wfEscapeJsString( wfMsg( 'metadata-expand' ) ) );
-                       $collapse = htmlspecialchars( wfEscapeJsString( wfMsg( 'metadata-collapse' ) ) );
+                       $expand = htmlspecialchars( Xml::escapeJsString( wfMsg( 'metadata-expand' ) ) );
+                       $collapse = htmlspecialchars( Xml::escapeJsString( wfMsg( 'metadata-collapse' ) ) );
                        $wgOut->addHTML( Xml::element( 'h2', array( 'id' => 'metadata' ), wfMsg( 'metadata' ) ). "\n" );
                        $wgOut->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
                        $wgOut->addScriptFile( 'metadata.js' );
@@ -152,7 +153,7 @@ class ImagePage extends Article {
                if( $from == $to ) {
                        return null; 
                }
-               return $this->mRedirectTarget = Title::makeTitle( NS_IMAGE, $to );
+               return $this->mRedirectTarget = Title::makeTitle( NS_FILE, $to );
        }
        public function followRedirect() {
                $this->loadFile();
@@ -164,7 +165,7 @@ class ImagePage extends Article {
                if( $from == $to ) {
                        return false; 
                }
-               return Title::makeTitle( NS_IMAGE, $to );       
+               return Title::makeTitle( NS_FILE, $to );        
        }
        public function isRedirect( $text = false ) {
                $this->loadFile();
@@ -222,7 +223,7 @@ class ImagePage extends Article {
        protected function showTOC( $metadata ) {
                global $wgLang;
                $r = '<ul id="filetoc">
-                       <li><a href="#file">' . $wgLang->getNsText( NS_IMAGE ) . '</a></li>
+                       <li><a href="#file">' . $wgLang->getNsText( NS_FILE ) . '</a></li>
                        <li><a href="#filehistory">' . wfMsgHtml( 'filehist' ) . '</a></li>
                        <li><a href="#filelinks">' . wfMsgHtml( 'imagelinks' ) . '</a></li>' .
                        ($metadata ? ' <li><a href="#metadata">' . wfMsgHtml( 'metadata' ) . '</a></li>' : '') . '
@@ -243,6 +244,7 @@ class ImagePage extends Article {
                $r .= "{| id=mw_metadata class=mw_metadata\n";
                foreach ( $metadata as $type => $stuff ) {
                        foreach ( $stuff as $v ) {
+                               # FIXME, why is this using escapeId for a class?!
                                $class = Sanitizer::escapeId( $v['id'] );
                                if( $type == 'collapsed' ) {
                                        $class .= ' collapsable';
@@ -479,17 +481,18 @@ EOT
 
                $descUrl = $this->img->getDescriptionUrl();
                $descText = $this->img->getDescriptionText();
-               $s = "<div class='sharedUploadNotice'>" . wfMsgWikiHtml( 'sharedupload' );
+               $msg = '';
                if( $descUrl ) {
                        $sk = $wgUser->getSkin();
                        $link = $sk->makeExternalLink( $descUrl, wfMsg( 'shareduploadwiki-linktext' ) );
                        $msg = ( $descText ) ? 'shareduploadwiki-desc' : 'shareduploadwiki';
                        $msg = wfMsgExt( $msg, array( 'parseinline', 'replaceafter' ), $link );
-                       if( $msg != '-' ) {
-                               # Show message only if not voided by local sysops
-                               $s .= $msg;
+                       if( $msg == '-' ) {
+                               $msg = '';
                        }
                }
+               $s  = "<div class='sharedUploadNotice'>";
+               $s .= wfMsgWikiHtml( 'sharedupload', $this->img->getRepo()->getDisplayName(), $msg );
                $s .= "</div>";
                $wgOut->addHTML( $s );
 
@@ -498,58 +501,10 @@ EOT
                }
        }
 
-       /*
-        * Check for files with the same name on the foreign repos.
-        */
-       protected function checkSharedConflict() {
-               global $wgOut, $wgUser;
-               
-               $repoGroup = RepoGroup::singleton();
-               if( !$repoGroup->hasForeignRepos() ) {
-                       return;
-               }
-               
-               $this->loadFile();
-               if( !$this->img->isLocal() ) {
-                       return;
-               }
-
-               $this->dupFile = null;
-               $repoGroup->forEachForeignRepo( array( $this, 'checkSharedConflictCallback' ) );
-               
-               if( !$this->dupFile )
-                       return;
-               $dupfile = $this->dupFile;
-               $same = (
-                       ($this->img->getSha1() == $dupfile->getSha1()) &&
-                       ($this->img->getSize() == $dupfile->getSize())
-               );
-
-               $sk = $wgUser->getSkin();
-               $descUrl = $dupfile->getDescriptionUrl();
-               if( $same ) {
-                       $link = $sk->makeExternalLink( $descUrl, wfMsg( 'shareduploadduplicate-linktext' ) );
-                       $wgOut->addHTML( '<div id="shared-image-dup">' . wfMsgWikiHtml( 'shareduploadduplicate', $link ) . '</div>' );
-               } else {
-                       $link = $sk->makeExternalLink( $descUrl, wfMsg( 'shareduploadconflict-linktext' ) );
-                       $wgOut->addHTML( '<div id="shared-image-conflict">' . wfMsgWikiHtml( 'shareduploadconflict', $link ) . '</div>' );
-               }
-       }
-
-       protected function checkSharedConflictCallback( $repo ) {
-               $this->loadFile();
-               $dupfile = $repo->newFile( $this->img->getTitle() );
-               if( $dupfile && $dupfile->exists() ) {
-                       $this->dupFile = $dupfile;
-                       return $dupfile->exists();
-               }
-               return false;
-       }
-
        public function getUploadUrl() {
                $this->loadFile();
                $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
-               return $uploadTitle->getFullUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
+               return $uploadTitle->getFullUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) . '&wpForReUpload=1' );
        }
 
        /**
@@ -573,10 +528,6 @@ EOT
                        $wgOut->addHTML( "<li><div class='plainlinks'>{$ulink}</div></li>" );
                }
 
-               # Link to Special:FileDuplicateSearch
-               $dupeLink = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'FileDuplicateSearch', $this->mTitle->getDBkey() ), wfMsgHtml( 'imagepage-searchdupe' ) );
-               $wgOut->addHTML( "<li>{$dupeLink}</li>" );
-
                # External editing link
                $elink = $sk->makeKnownLinkObj( $this->mTitle, wfMsgHtml( 'edit-externally' ), 'action=edit&externaledit=true&mode=file' );
                $wgOut->addHTML( '<li>' . $elink . ' <small>' . wfMsgExt( 'edit-externally-help', array( 'parseinline' ) ) . '</small></li>' );
@@ -594,20 +545,8 @@ EOT
                global $wgOut, $wgUseExternalEditor;
 
                $this->loadFile();
-               $s = '';
-               if( $this->img->exists() ) {
-                       $list = new ImageHistoryList( $this );
-                       $file = $this->img;
-                       $s = $list->beginImageHistoryList();
-                       $s .= $list->imageHistoryLine( true, $file );
-                       // old image versions
-                       $hist = $this->img->getHistory();
-                       foreach( $hist as $file ) {
-                               $s .= $list->imageHistoryLine( false, $file );
-                       }
-                       $s .= $list->endImageHistoryList();
-               }
-               $wgOut->addHTML( $s );
+               $pager = new ImageHistoryPseudoPager( $this );
+               $wgOut->addHTML( $pager->getBody() );
 
                $this->img->resetHistory(); // free db resources
 
@@ -674,7 +613,7 @@ EOT
        protected function imageRedirects() {
                global $wgUser, $wgOut, $wgLang;
 
-               $redirects = $this->getTitle()->getRedirectsHere( NS_IMAGE );
+               $redirects = $this->getTitle()->getRedirectsHere( NS_FILE );
                if( count( $redirects ) == 0 ) return;
 
                $wgOut->addHTML( "<div id='mw-imagepage-section-redirectstofile'>\n" );
@@ -702,19 +641,21 @@ EOT
 
                $wgOut->addHTML( "<div id='mw-imagepage-section-duplicates'>\n" );
                $wgOut->addWikiMsg( 'duplicatesoffile',
-                       $wgLang->formatNum( count( $dupes ) )
+                       $wgLang->formatNum( count( $dupes ) ), $this->mTitle->getDBkey()
                );
                $wgOut->addHTML( "<ul class='mw-imagepage-duplicates'>\n" );
 
                $sk = $wgUser->getSkin();
                foreach ( $dupes as $file ) {
+                       $fromSrc = '';
                        if( $file->isLocal() )
                                $link = $sk->makeKnownLinkObj( $file->getTitle(), "" );
                        else {
                                $link = $sk->makeExternalLink( $file->getDescriptionUrl(),
                                        $file->getTitle()->getPrefixedText() );
+                               $fromSrc = wfMsg( 'shared-repo-from', $file->getRepo()->getDisplayName() );
                        }
-                       $wgOut->addHTML( "<li>{$link}</li>\n" );
+                       $wgOut->addHTML( "<li>{$link} {$fromSrc}</li>\n" );
                }
                $wgOut->addHTML( "</ul></div>\n" );
        }
@@ -803,10 +744,11 @@ class ImageHistoryList {
                return $this->img;
        }
 
-       public function beginImageHistoryList() {
+       public function beginImageHistoryList( $navLinks = '' ) {
                global $wgOut, $wgUser;
                return Xml::element( 'h2', array( 'id' => 'filehistory' ), wfMsg( 'filehist' ) )
                        . $wgOut->parse( wfMsgNoTrans( 'filehist-help' ) )
+                       . $navLinks
                        . Xml::openElement( 'table', array( 'class' => 'filehistory' ) ) . "\n"
                        . '<tr><td></td>'
                        . ( $this->current->isLocal() && ($wgUser->isAllowed('delete') || $wgUser->isAllowed('deleterevision') ) ? '<td></td>' : '' )
@@ -818,8 +760,8 @@ class ImageHistoryList {
                        . "</tr>\n";
        }
 
-       public function endImageHistoryList() {
-               return "</table>\n";
+       public function endImageHistoryList( $navLinks = '' ) {
+               return "</table>\n$navLinks\n";
        }
 
        public function imageHistoryLine( $iscur, $file ) {
@@ -925,7 +867,8 @@ class ImageHistoryList {
                                'alt' => wfMsg( 'filehist-thumbtext', $wgLang->timeAndDate( $timestamp, true ) ),
                                'file-link' => true,
                        );
-                       $row .= '</td><td>' . $thumbnail->toHtml( $options );
+                       $row .= '</td><td>' . ( $thumbnail ? $thumbnail->toHtml( $options ) : 
+                                                                                                       wfMsgHtml( 'filehist-nothumb' ) );
                } else {
                        $row .= '</td><td>' . wfMsgHtml( 'filehist-nothumb' );
                }
@@ -966,3 +909,128 @@ class ImageHistoryList {
                return "<tr{$classAttr}>{$row}</tr>\n";
        }
 }
+
+class ImageHistoryPseudoPager extends ReverseChronologicalPager {
+       function __construct( $imagePage ) {
+               parent::__construct();
+               $this->mImagePage = $imagePage;
+               $this->mTitle = clone( $imagePage->getTitle() );
+               $this->mTitle->setFragment( '#filehistory' );
+               $this->mImg = NULL;
+               $this->mHist = array();
+               $this->mRange = array( 0, 0 ); // display range
+       }
+       
+       function getTitle() {
+               return $this->mTitle;
+       }
+
+       function getQueryInfo() {
+               return false;
+       }
+
+       function getIndexField() {
+               return '';
+       }
+
+       function formatRow( $row ) {
+               return '';
+       }
+       
+       function getBody() {
+               $s = '';
+               $this->doQuery();
+               if( count($this->mHist) ) {
+                       $list = new ImageHistoryList( $this->mImagePage );
+                       # Generate prev/next links
+                       $navLink = $this->getNavigationBar();
+                       $s = $list->beginImageHistoryList($navLink);
+                       // Skip rows there just for paging links
+                       for( $i = $this->mRange[0]; $i <= $this->mRange[1]; $i++ ) {
+                               $file = $this->mHist[$i];
+                               $s .= $list->imageHistoryLine( !$file->isOld(), $file );
+                       }
+                       $s .= $list->endImageHistoryList($navLink);
+               }
+               return $s;
+       }
+
+       function doQuery() {
+               if( $this->mQueryDone ) return;
+               $this->mImg = $this->mImagePage->getFile(); // ensure loading
+               if( !$this->mImg->exists() ) {
+                       return;
+               }
+               $queryLimit = $this->mLimit + 1; // limit plus extra row
+               if( $this->mIsBackwards ) {
+                       // Fetch the file history
+                       $this->mHist = $this->mImg->getHistory($queryLimit,null,$this->mOffset,false);
+                       // The current rev may not meet the offset/limit
+                       $numRows = count($this->mHist);
+                       if( $numRows <= $this->mLimit && $this->mImg->getTimestamp() > $this->mOffset ) {
+                               $this->mHist = array_merge( array($this->mImg), $this->mHist );
+                       }
+               } else {
+                       // The current rev may not meet the offset
+                       if( !$this->mOffset || $this->mImg->getTimestamp() < $this->mOffset ) {
+                               $this->mHist[] = $this->mImg;
+                       }
+                       // Old image versions (fetch extra row for nav links)
+                       $oiLimit = count($this->mHist) ? $this->mLimit : $this->mLimit+1;
+                       // Fetch the file history
+                       $this->mHist = array_merge( $this->mHist,
+                               $this->mImg->getHistory($oiLimit,$this->mOffset,null,false) );
+               }
+               $numRows = count($this->mHist); // Total number of query results
+               if( $numRows ) {
+                       # Index value of top item in the list
+                       $firstIndex = $this->mIsBackwards ?
+                               $this->mHist[$numRows-1]->getTimestamp() : $this->mHist[0]->getTimestamp();
+                       # Discard the extra result row if there is one
+                       if( $numRows > $this->mLimit && $numRows > 1 ) {
+                               if( $this->mIsBackwards ) {
+                                       # Index value of item past the index
+                                       $this->mPastTheEndIndex = $this->mHist[0]->getTimestamp();
+                                       # Index value of bottom item in the list
+                                       $lastIndex = $this->mHist[1]->getTimestamp();
+                                       # Display range
+                                       $this->mRange = array( 1, $numRows-1 );
+                               } else {
+                                       # Index value of item past the index
+                                       $this->mPastTheEndIndex = $this->mHist[$numRows-1]->getTimestamp();
+                                       # Index value of bottom item in the list
+                                       $lastIndex = $this->mHist[$numRows-2]->getTimestamp();
+                                       # Display range
+                                       $this->mRange = array( 0, $numRows-2 );
+                               }
+                       } else {
+                               # Setting indexes to an empty string means that they will be
+                               # omitted if they would otherwise appear in URLs. It just so
+                               # happens that this  is the right thing to do in the standard
+                               # UI, in all the relevant cases.
+                               $this->mPastTheEndIndex = '';
+                               # Index value of bottom item in the list
+                               $lastIndex = $this->mIsBackwards ?
+                                       $this->mHist[0]->getTimestamp() : $this->mHist[$numRows-1]->getTimestamp();
+                               # Display range
+                               $this->mRange = array( 0, $numRows-1 );
+                       }
+               } else {
+                       $firstIndex = '';
+                       $lastIndex = '';
+                       $this->mPastTheEndIndex = '';
+               }
+               if( $this->mIsBackwards ) {
+                       $this->mIsFirst = ( $numRows < $queryLimit );
+                       $this->mIsLast = ( $this->mOffset == '' );
+                       $this->mLastShown = $firstIndex;
+                       $this->mFirstShown = $lastIndex;
+               } else {
+                       $this->mIsFirst = ( $this->mOffset == '' );
+                       $this->mIsLast = ( $numRows < $queryLimit );
+                       $this->mLastShown = $lastIndex;
+                       $this->mFirstShown = $firstIndex;
+               }
+               $this->mQueryDone = true;
+       }
+}