editpage.php

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		#if ( "no" == $redirect ) { $q .= "&redirect=no"; }
		$action = $this->mTitle->escapeLocalURL( $q );

		$summary = wfMsg('summary');
		$subject = wfMsg('subject');
		$minor   = wfMsgExt('minoredit', array('parseinline'));
		$watchthis = wfMsgExt('watchthis', array('parseinline'));

		$cancel = $sk->makeKnownLink( $this->mTitle->getPrefixedText(),
				wfMsgExt('cancel', array('parseinline')) );
		$edithelpurl = $sk->makeInternalOrExternalUrl( wfMsgForContent( 'edithelppage' ));
		$edithelp = '<a target="helpwindow" href="'.$edithelpurl.'">'.
			htmlspecialchars( wfMsg( 'edithelp' ) ).'</a> '.
			htmlspecialchars( wfMsg( 'newwindow' ) );

		global $wgRightsText;
		$copywarn = "<div id=\"editpage-copywarn\">\n" .
			wfMsg( $wgRightsText ? 'copyrightwarning' : 'copyrightwarning2',
				'[[' . wfMsgForContent( 'copyrightpage' ) . ']]',
				$wgRightsText ) . "\n</div>";

		if( $wgUser->getOption('showtoolbar') and !$this->isCssJsSubpage ) {
			# prepare toolbar for edit buttons
			$toolbar = $this->getEditToolbar();
		} else {
			$toolbar = '';
		}

		// activate checkboxes if user wants them to be always active
		if( !$this->preview && !$this->diff ) {
			# Sort out the "watch" checkbox
			if( $wgUser->getOption( 'watchdefault' ) ) {
				# Watch all edits
				$this->watchthis = true;
			} elseif( $wgUser->getOption( 'watchcreations' ) && !$this->mTitle->exists() ) {
				# Watch creations
				$this->watchthis = true;
			} elseif( $this->mTitle->userIsWatching() ) {
				# Already watched
				$this->watchthis = true;
			}
			
			if( $wgUser->getOption( 'minordefault' ) ) $this->minoredit = true;
		}

		$minoredithtml = '';

		if ( $wgUser->isAllowed('minoredit') ) {
			$minoredithtml =
				"<input tabindex='3' type='checkbox' value='1' name='wpMinoredit'".($this->minoredit?" checked='checked'":"").
				" accesskey='".wfMsg('accesskey-minoredit')."' id='wpMinoredit' />\n".
				"<label for='wpMinoredit' title='".wfMsg('tooltip-minoredit')."'>{$minor}</label>\n";
		}

		$watchhtml = '';

		if ( $wgUser->isLoggedIn() ) {
			$watchhtml = "<input tabindex='4' type='checkbox' name='wpWatchthis'".
				($this->watchthis?" checked='checked'":"").
				" accesskey=\"".htmlspecialchars(wfMsg('accesskey-watch'))."\" id='wpWatchthis'  />\n".
				"<label for='wpWatchthis' title=\"" .
					htmlspecialchars(wfMsg('tooltip-watch'))."\">{$watchthis}</label>\n";
		}

		$checkboxhtml = $minoredithtml . $watchhtml;

		if ( $wgUser->getOption( 'previewontop' ) ) {

			if ( 'preview' == $this->formtype ) {
				$this->showPreview();
			} else {
				$wgOut->addHTML( '<div id="wikiPreview"></div>' );
			}

			if ( 'diff' == $this->formtype ) {
				$wgOut->addHTML( $this->getDiff() );
			}
		}


		# if this is a comment, show a subject line at the top, which is also the edit summary.
		# Otherwise, show a summary field at the bottom
		$summarytext = htmlspecialchars( $wgContLang->recodeForEdit( $this->summary ) ); # FIXME
		if( $this->section == 'new' ) {
			$commentsubject="<span id='wpSummaryLabel'><label for='wpSummary'>{$subject}:</label></span>\n<div class='editOptions'>\n<input tabindex='1' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' /><br />";
			$editsummary = '';
		} else {
			$commentsubject = '';
			$editsummary="<span id='wpSummaryLabel'><label for='wpSummary'>{$summary}:</label></span>\n<div class='editOptions'>\n<input tabindex='2' type='text' value=\"$summarytext\" name='wpSummary' id='wpSummary' maxlength='200' size='60' /><br />";
		}

		# Set focus to the edit box on load, except on preview or diff, where it would interfere with the display
		if( !$this->preview && !$this->diff ) {
			$wgOut->setOnloadHandler( 'document.editform.wpTextbox1.focus()' );
		}
		$templates = $this->formatTemplates();

		global $wgUseMetadataEdit ;
		if ( $wgUseMetadataEdit ) {
			$metadata = $this->mMetaData ;
			$metadata = htmlspecialchars( $wgContLang->recodeForEdit( $metadata ) ) ;
			$top = wfMsgWikiHtml( 'metadata_help' );
			$metadata = $top . "<textarea name='metadata' rows='3' cols='{$cols}'{$ew}>{$metadata}</textarea>" ;
		}
		else $metadata = "" ;

		$hidden = '';
		$recreate = '';
		if ($this->deletedSinceEdit) {
			if ( 'save' != $this->formtype ) {
				$wgOut->addWikiText( wfMsg('deletedwhileediting'));
			} else {
				// Hide the toolbar and edit area, use can click preview to get it back
				// Add an confirmation checkbox and explanation.
				$toolbar = '';
				$hidden = 'type="hidden" style="display:none;"';
				$recreate = $wgOut->parse( wfMsg( 'confirmrecreate',  $this->lastDelete->user_name , $this->lastDelete->log_comment ));
				$recreate .=
					"<br /><input tabindex='1' type='checkbox' value='1' name='wpRecreate' id='wpRecreate' />".
					"<label for='wpRecreate' title='".wfMsg('tooltip-recreate')."'>". wfMsg('recreate')."</label>";
			}
		}

		$temp = array(
			'id'        => 'wpSave',
			'name'      => 'wpSave',
			'type'      => 'submit',
			'tabindex'  => '5',
			'value'     => wfMsg('savearticle'),
			'accesskey' => wfMsg('accesskey-save'),
			'title'     => wfMsg('tooltip-save'),
		);
		$buttons['save'] = wfElement('input', $temp, '');
		$temp = array(
			'id'        => 'wpDiff',
			'name'      => 'wpDiff',
			'type'      => 'submit',
			'tabindex'  => '7',
			'value'     => wfMsg('showdiff'),
			'accesskey' => wfMsg('accesskey-diff'),
			'title'     => wfMsg('tooltip-diff'),
		);
		$buttons['diff'] = wfElement('input', $temp, '');

		global $wgLivePreview;
		if ( $wgLivePreview && $wgUser->getOption( 'uselivepreview' ) ) {
			$temp = array(
				'id'        => 'wpPreview',
				'name'      => 'wpPreview',
				'type'      => 'submit',
				'tabindex'  => '6',
				'value'     => wfMsg('showpreview'),
				'accesskey' => '',
				'title'     => wfMsg('tooltip-preview'),
				'style'     => 'display: none;',
			);
			$buttons['preview'] = wfElement('input', $temp, '');
			$temp = array(
				'id'        => 'wpLivePreview',
				'name'      => 'wpLivePreview',
				'type'      => 'submit',
				'tabindex'  => '6',
				'value'     => wfMsg('showlivepreview'),
				'accesskey' => wfMsg('accesskey-preview'),
				'title'     => '',
				'onclick'   => $this->doLivePreviewScript(),
			);
			$buttons['live'] = wfElement('input', $temp, '');
		} else {
			$temp = array(
				'id'        => 'wpPreview',
				'name'      => 'wpPreview',
				'type'      => 'submit',
				'tabindex'  => '6',
				'value'     => wfMsg('showpreview'),
				'accesskey' => wfMsg('accesskey-preview'),
				'title'     => wfMsg('tooltip-preview'),
			);
			$buttons['preview'] = wfElement('input', $temp, '');
			$buttons['live'] = '';
		}

		$safemodehtml = $this->checkUnicodeCompliantBrowser()
			? ""
			: "<input type='hidden' name=\"safemode\" value='1' />\n";

		$wgOut->addHTML( <<<END
{$toolbar}
<form id="editform" name="editform" method="post" action="$action" enctype="multipart/form-data">
END
);

		if( is_callable( $formCallback ) ) {
			call_user_func_array( $formCallback, array( &$wgOut ) );
		}

		// Put these up at the top to ensure they aren't lost on early form submission
		$wgOut->addHTML( "
<input type='hidden' value=\"" . htmlspecialchars( $this->section ) . "\" name=\"wpSection\" />
<input type='hidden' value=\"{$this->starttime}\" name=\"wpStarttime\" />\n
<input type='hidden' value=\"{$this->edittime}\" name=\"wpEdittime\" />\n
<input type='hidden' value=\"{$this->scrolltop}\" name=\"wpScrolltop\" id=\"wpScrolltop\" />\n" );

		$wgOut->addHTML( <<<END
$recreate
{$commentsubject}
<textarea tabindex='1' accesskey="," name="wpTextbox1" id="wpTextbox1" rows='{$rows}'
cols='{$cols}'{$ew} $hidden>
END
. htmlspecialchars( $this->safeUnicodeOutput( $this->textbox1 ) ) .
"
</textarea>
		" );

		$wgOut->addWikiText( $copywarn );
		$wgOut->addHTML( "
{$metadata}
{$editsummary}
{$checkboxhtml}
{$safemodehtml}
");

		$wgOut->addHTML(
"<div class='editButtons'>
	{$buttons['save']}
	{$buttons['preview']}
	{$buttons['live']}
	{$buttons['diff']}
	<span class='editHelp'>{$cancel} | {$edithelp}</span>
</div><!-- editButtons -->
</div><!-- editOptions -->");

		$wgOut->addWikiText( wfMsgForContent( 'edittools' ) );

		$wgOut->addHTML( "
<div class='templatesUsed'>
{$templates}
</div>
" );

		if ( $wgUser->isLoggedIn() ) {
			/**
			 * To make it harder for someone to slip a user a page
			 * which submits an edit form to the wiki without their
			 * knowledge, a random token is associated with the login
			 * session. If it's not passed back with the submission,
			 * we won't save the page, or render user JavaScript and
			 * CSS previews.
			 */
			$token = htmlspecialchars( $wgUser->editToken() );
			$wgOut->addHTML( "\n<input type='hidden' value=\"$token\" name=\"wpEditToken\" />\n" );
		}

		# If a blank edit summary was previously provided, and the appropriate
		# user preference is active, pass a hidden tag here. This will stop the
		# user being bounced back more than once in the event that a summary
		# is not required.
		if( $this->missingSummary ) {
			$wgOut->addHTML( "<input type=\"hidden\" name=\"wpIgnoreBlankSummary\" value=\"1\" />\n" );
		}
		
		# For a bit more sophisticated detection of blank summaries, hash the
		# automatic one and pass that in a hidden field.
		$autosumm = $this->autoSumm ? $this->autoSumm : md5( $this->summary );
		$wgOut->addHtml( wfHidden( 'wpAutoSummary', $autosumm ) );

		if ( $this->isConflict ) {
			require_once( "DifferenceEngine.php" );
			$wgOut->addWikiText( '==' . wfMsg( "yourdiff" ) . '==' );

			$de = new DifferenceEngine( $this->mTitle );
			$de->setText( $this->textbox2, $this->textbox1 );
			$de->showDiff( wfMsg( "yourtext" ), wfMsg( "storedversion" ) );

			$wgOut->addWikiText( '==' . wfMsg( "yourtext" ) . '==' );
			$wgOut->addHTML( "<textarea tabindex=6 id='wpTextbox2' name=\"wpTextbox2\" rows='{$rows}' cols='{$cols}' wrap='virtual'>"
				. htmlspecialchars( $this->safeUnicodeOutput( $this->textbox2 ) ) . "\n</textarea>" );
		}
		$wgOut->addHTML( "</form>\n" );
		if ( !$wgUser->getOption( 'previewontop' ) ) {

			if ( $this->formtype == 'preview') {
				$this->showPreview();
			} else {
				$wgOut->addHTML( '<div id="wikiPreview"></div>' );
			}
		
			if ( $this->formtype == 'diff') {
				$wgOut->addHTML( $this->getDiff() );
			}

		}

		wfProfileOut( $fname );
	}

	/**
	 * Append preview output to $wgOut.
	 * Includes category rendering if this is a category page.
	 * @private
	 */
	function showPreview() {
		global $wgOut;
		$wgOut->addHTML( '<div id="wikiPreview">' );
		if($this->mTitle->getNamespace() == NS_CATEGORY) {
			$this->mArticle->openShowCategory();
		}
		$previewOutput = $this->getPreviewText();
		$wgOut->addHTML( $previewOutput );
		if($this->mTitle->getNamespace() == NS_CATEGORY) {
			$this->mArticle->closeShowCategory();
		}
		$wgOut->addHTML( "<br style=\"clear:both;\" />\n" );
		$wgOut->addHTML( '</div>' );
	}

	/**
	 * Prepare a list of templates used by this page. Returns HTML.
	 */
	function formatTemplates() {
		global $wgUser;

		$fname = 'EditPage::formatTemplates';
		wfProfileIn( $fname );

		$sk =& $wgUser->getSkin();

		$outText = '';
		$templates = $this->mArticle->getUsedTemplates();
		if ( count( $templates ) > 0 ) {
			# Do a batch existence check
			$batch = new LinkBatch;
			foreach( $templates as $title ) {
				$batch->addObj( $title );
			}
			$batch->execute();

			# Construct the HTML
			$outText = '<br />'. wfMsgExt( 'templatesused', array( 'parseinline' ) ) . '<ul>';
			foreach ( $templates as $titleObj ) {
				$outText .= '<li>' . $sk->makeLinkObj( $titleObj ) . '</li>';
			}
			$outText .= '</ul>';
		}
		wfProfileOut( $fname );
		return $outText;
	}

	/**
	 * Live Preview lets us fetch rendered preview page content and
	 * add it to the page without refreshing the whole page.
	 * If not supported by the browser it will fall through to the normal form
	 * submission method.
	 *
	 * This function outputs a script tag to support live preview, and
	 * returns an onclick handler which should be added to the attributes
	 * of the preview button
	 */
	function doLivePreviewScript() {
		global $wgStylePath, $wgJsMimeType, $wgOut, $wgTitle;
		$wgOut->addHTML( '<script type="'.$wgJsMimeType.'" src="' .
			htmlspecialchars( $wgStylePath . '/common/preview.js' ) .
			'"></script>' . "\n" );
		$liveAction = $wgTitle->getLocalUrl( 'action=submit&wpPreview=true&live=true' );
		return "return !livePreview(" .
			"getElementById('wikiPreview')," .
			"editform.wpTextbox1.value," .
			'"' . $liveAction . '"' . ")";
	}

	function getLastDelete() {
		$dbr =& wfGetDB( DB_SLAVE );
		$fname = 'EditPage::getLastDelete';
		$res = $dbr->select(
			array( 'logging', 'user' ),
			array( 'log_type',
			       'log_action',
			       'log_timestamp',
			       'log_user',
			       'log_namespace',
			       'log_title',
			       'log_comment',
			       'log_params',
			       'user_name', ),
			array( 'log_namespace' => $this->mTitle->getNamespace(),
			       'log_title' => $this->mTitle->getDBkey(),
			       'log_type' => 'delete',
			       'log_action' => 'delete',
			       'user_id=log_user' ),
			$fname,
			array( 'LIMIT' => 1, 'ORDER BY' => 'log_timestamp DESC' ) );

		if($dbr->numRows($res) == 1) {
			while ( $x = $dbr->fetchObject ( $res ) )
				$data = $x;
			$dbr->freeResult ( $res ) ;
		} else {
			$data = null;
		}
		return $data;
	}

	/**
	 * @todo document
	 */
	function getPreviewText() {
		global $wgOut, $wgUser, $wgTitle, $wgParser;

		$fname = 'EditPage::getPreviewText';
		wfProfileIn( $fname );

		if ( $this->mTriedSave && !$this->mTokenOk ) {
			$msg = 'session_fail_preview';
		} else {
			$msg = 'previewnote';
		}
		$previewhead = '<h2>' . htmlspecialchars( wfMsg( 'preview' ) ) . "</h2>\n" .
			"<div class='previewnote'>" . $wgOut->parse( wfMsg( $msg ) ) . "</div>\n";
		if ( $this->isConflict ) {
			$previewhead.='<h2>' . htmlspecialchars( wfMsg( 'previewconflict' ) ) . "</h2>\n";
		}

		$parserOptions = ParserOptions::newFromUser( $wgUser );
		$parserOptions->setEditSection( false );

		global $wgRawHtml;
		if( $wgRawHtml && !$this->mTokenOk ) {
			// Could be an offsite preview attempt. This is very unsafe if
			// HTML is enabled, as it could be an attack.
			return $wgOut->parse( "<div class='previewnote'>" .
				wfMsg( 'session_fail_preview_html' ) . "</div>" );
		}

		# don't parse user css/js, show message about preview
		# XXX: stupid php bug won't let us use $wgTitle->isCssJsSubpage() here
		
		if ( $this->isCssJsSubpage ) {
			if(preg_match("/\\.css$/", $wgTitle->getText() ) ) {
				$previewtext = wfMsg('usercsspreview');
			} else if(preg_match("/\\.js$/", $wgTitle->getText() ) ) {
				$previewtext = wfMsg('userjspreview');
			}
			$parserOptions->setTidy(true);
			$parserOutput = $wgParser->parse( $previewtext , $wgTitle, $parserOptions );
			$wgOut->addHTML( $parserOutput->mText );
			wfProfileOut( $fname );
			return $previewhead;
		} else {
			# if user want to see preview when he edit an article
			if( $wgUser->getOption('previewonfirst') and ($this->textbox1 == '')) {
				$this->textbox1 = $this->getContent();
			}

			$toparse = $this->textbox1;

			# If we're adding a comment, we need to show the
			# summary as the headline
			if($this->section=="new" && $this->summary!="") {
				$toparse="== {$this->summary} ==\n\n".$toparse;
			}

			if ( $this->mMetaData != "" ) $toparse .= "\n" . $this->mMetaData ;
			$parserOptions->setTidy(true);
			$parserOutput = $wgParser->parse( $this->mArticle->preSaveTransform( $toparse ) ."\n\n",
					$wgTitle, $parserOptions );

			$previewHTML = $parserOutput->getText();