WikiActivity Extension

ActivityHelper.php

<?php
/* Various helper functions for the main script. */
class ActivityHelper {
	/* Return a given message as plain text. */
	public static function getMessage ( $name, ...$params) {
		return wfMessage( $name, $params)->plain();
	}
	
	/* Get an HTML link to user's page from username. */
	public static function userLink ( $user ) {
		return "<a href=\"/User:$user\">$user</a>";
	}
	
	/* Get age of a timestamp in plain text. */
	public static function elapsedTime( $user, $timestamp ) {
		$now = new DateTime();
		$old = DateTime::createFromFormat( 'U', wfTimestamp( TS_UNIX, $timestamp ));
		$interval = $now->diff($old);
		$msg = "wa-editedby-";
		$span = NULL;
		$value = 0;
		
		if      ( $value = $interval->y ) { $msg .= 'year'; }
		else if ( $value = $interval->m ) { $msg .= 'month'; }
		else if ( $value = $interval->d ) { $msg .= 'day'; }
		else if ( $value = $interval->h ) { $msg .= 'hour'; }
		else if ( $value = $interval->i ) { $msg .= 'minute'; }
		else if ( $value = $interval->s ) { $msg .= 'second'; }
		
		$userlink = ActivityHelper::userLink( $user );
		if ( $value > 1 ) {
			$msg .= 's';
			return ActivityHelper::getMessage($msg, $userlink, $value);
		} else {
			return ActivityHelper::getMessage($msg, $userlink);
		}
	}
	
	/* Return the HTML for an OOUI icon. */
	public static function getIcon ( $name, $page, $blue ) {
		$icon = new OOUI\IconWidget( [
			'icon' => $name,
			'title' => $page ? $page : ucfirst($name),
			'flags' => $blue ? 'progressive' : ''
		] );
		
		if ($page) {
			return "<a href=\"/$page\">$icon</a>";
		} else {
			return $icon;
		}
	}
}

extension.json

{
	"name": "WikiActivity",
	"version": "0.0.0",
	"author": "PukupukuDragon",
	"descriptionmsg": "wikiactivity-desc",
	"license-name": "GPL-2.0-or-later",
	"type": "other",
	"manifest_version": 1,

	"AutoloadClasses": {
		"WikiActivity": "WikiActivity.php",
		"ActivityHelper": "ActivityHelper.php"
	},

	"SpecialPages": {
		"WikiActivity": "WikiActivity"
	},

	"MessagesDirs": {
		"WikiActivity": [
			"i18n"
		]
	},

	"ExtensionMessagesFiles": {
		"WikiActivityAlias": "i18n/WikiActivity.i18n.alias.php"
	},
	
	"ResourceModules": {
		"ext.WikiActivity": {
			"styles": "WikiActivity.css",
			"dependencies": "oojs-ui"
		}
	},

	"ResourceFileModulePaths": {
		"localBasePath": "",
		"remoteExtPath": "WikiActivity"
	}
}

WikiActivity.css

cite {
	color: #54595d;
	font-size: 12px;
	font-style: normal;
}

li {
	border-top: 1px solid #a2a9b1;
	padding-bottom: 7px;
	padding-top: 10px;
}

span {
	margin-left: -28px;
	margin-right: 8px;
}

ul {
	list-style: none;
}

.wa-title {
	font-weight: bold;
}

WikiActivity.php

<?php
class WikiActivity extends SpecialPage {
	function __construct() {
		global $wgShowExceptionDetails, $wgShowDBErrorBacktrace, $wgShowSQLErrors;

		$wgShowExceptionDetails = true;
		$wgShowDBErrorBacktrace = true;
		$wgShowSQLErrors = true;
		parent::__construct( 'WikiActivity' );
	}

	/* Main entrance point of extension. */
	function execute( $par ) {
		$out = $this->getOutput();
		$out->enableOOUI();
		$out->addModuleStyles ( [
			'ext.WikiActivity',
			'oojs-ui.styles.icons-moderation',
			'oojs-ui.styles.icons-editing-core',
			'oojs-ui.styles.icons-content' ] );
		$this->setHeaders();
		
		# Get request data from GET message
		# $request = $this->getRequest();
		# $param = $request->getText( 'param' );
		
		# SELECT rc_user, rc_user_text, rc_title, rc_namespace, rc_timestamp FROM `recentchanges` ORDER BY  `rc_timestamp` DESC LIMIT 50
		$dbr = wfGetDB( DB_REPLICA );
		$res = $dbr->select(
			'recentchanges',
			array(  'rc_user',
					'rc_user_text',
					'rc_title',
					'rc_namespace',
					'rc_timestamp',
					'rc_this_oldid',
					'rc_last_oldid' ),
			'',
			__METHOD__,
			array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => '100' )
		);

		$this->listStart( $out );
		foreach ( $res as $row) {
			$this->listItem( $out,  $row );
		}
		$this->listEnd( $out );
	}
	
	/* Add header to wiki activity list. */
	function listStart( $out ) {
		$out->addWikitext( 'This is a work-in-progress extension being developed by [[User:PukupukuDragon|PukupukuDragon]] that will replicate Special:WikiActivity from the old site.<br>' );
		$out->addHTML('<ul>');
	}
	
	/* Add footer to wiki activity list. */
	function listEnd( $out ) {
		$out->addHTML('</ul>');
	}
	
	/* Add header to wiki activity list. */
	function listItem( $out, $row ) {
		$item = '<li>%s</li>';
		
		# Add page title to item
		$html = '<a class="wa-title" href="/%s">%s%s</a><br>%%s';
		$namespace = MWNamespace::getCanonicalName( $row->rc_namespace );
		$title = $namespace ? $namespace . ':' . $row->rc_title : $row->rc_title;
		$icon = ActivityHelper::getIcon( 'edit' );
		$html = sprintf( $html, $title, $icon, $title );
		$item = sprintf( $item, $html );

		# Add editor to item
		$html = '<cite>%s %%s</cite>';
		$time = ActivityHelper::elapsedTime( $row->rc_user_text, $row->rc_timestamp );
		$html = sprintf( $html, $time );
		$item = sprintf( $item, $html );
		
		# Add revision icon to item
		$html = '<a href="/%s?diff=%d&oldid=%d">%s</a>';
		$icon = ActivityHelper::getIcon( 'articleSearch', '', true );
		$html = sprintf( $html, $title, $row->rc_this_oldid, $row->rc_last_oldid, $icon );
		$item = sprintf( $item, $html);
		
		$out->addHTML($item);
	}

	/* Get name of extension as it appears in Special:Version */
	function getGroupName( $out ) {
		return 'changes';
	}
}