http://www.mediawiki.org/wiki/Special:Code/MediaWiki/71872
Revision: 71872
Author: jeroendedauw
Date: 2010-08-29 05:48:07 +0000 (Sun, 29 Aug 2010)
Log Message:
-----------
follow up to r71871 - forgot to svn-add this file o_O
Added Paths:
-----------
trunk/extensions/Maps/ParserHooks/Maps_Geodistance.php
Added: trunk/extensions/Maps/ParserHooks/Maps_Geodistance.php
===================================================================
--- trunk/extensions/Maps/ParserHooks/Maps_Geodistance.php
(rev 0)
+++ trunk/extensions/Maps/ParserHooks/Maps_Geodistance.php 2010-08-29
05:48:07 UTC (rev 71872)
@@ -0,0 +1,148 @@
+<?php
+
+/**
+ * Class for the 'geodistance' parser hooks,
+ * which can transform the notation of a distance.
+ *
+ * @since 0.7
+ *
+ * @file Maps_Geodistance.php
+ * @ingroup Maps
+ *
+ * @author Jeroen De Dauw
+ */
+class MapsGeodistance extends ParserHook {
+
+ /**
+ * No LST in pre-5.3 PHP *sigh*.
+ * This is to be refactored as soon as php >=5.3 becomes acceptable.
+ */
+ public static function staticMagic( array &$magicWords, $langCode ) {
+ $className = __CLASS__;
+ $instance = new $className();
+ return $instance->magic( $magicWords, $langCode );
+ }
+
+ /**
+ * No LST in pre-5.3 PHP *sigh*.
+ * This is to be refactored as soon as php >=5.3 becomes acceptable.
+ */
+ public static function staticInit( Parser &$wgParser ) {
+ $className = __CLASS__;
+ $instance = new $className();
+ return $instance->init( $wgParser );
+ }
+
+ /**
+ * Gets the name of the parser hook.
+ * @see ParserHook::getName
+ *
+ * @since 0.7
+ *
+ * @return string
+ */
+ protected function getName() {
+ return 'geodistance';
+ }
+
+ /**
+ * Returns an array containing the parameter info.
+ * @see ParserHook::getParameterInfo
+ *
+ * @since 0.7
+ *
+ * @return array
+ */
+ protected function getParameterInfo() {
+ global $egMapsDistanceUnit, $egMapsDistanceDecimals;
+
+ return array(
+ 'location1' => array(
+ 'required' => true,
+ 'tolower' => false,
+ 'aliases' => array( 'from' )
+ ),
+ 'location2' => array(
+ 'required' => true,
+ 'tolower' => false,
+ 'aliases' => array( 'to' )
+ ),
+ 'unit' => array(
+ 'criteria' => array(
+ 'in_array' =>
MapsDistanceParser::getUnits()
+ ),
+ 'default' => $egMapsDistanceUnit
+ ),
+ 'decimals' => array(
+ 'type' => 'integer',
+ 'default' => $egMapsDistanceDecimals
+ )
+ );
+ }
+
+ /**
+ * Returns the list of default parameters.
+ * @see ParserHook::getDefaultParameters
+ *
+ * @since 0.7
+ *
+ * @return array
+ */
+ protected function getDefaultParameters() {
+ return array( 'location1', 'location2', 'unit', 'decimals' );
+ }
+
+ /**
+ * Renders and returns the output.
+ * @see ParserHook::render
+ *
+ * @since 0.7
+ *
+ * @param array $parameters
+ *
+ * @return string
+ */
+ public function render( array $parameters ) {
+ $canGeocode = MapsMapper::geocoderIsAvailable();
+
+ if ( $canGeocode ) {
+ $start = MapsGeocoder::attemptToGeocode(
$parameters['location1'] );
+ $end = MapsGeocoder::attemptToGeocode(
$parameters['location2'] );
+ } else {
+ $start = MapsCoordinateParser::parseCoordinates(
$parameters['location1'] );
+ $end = MapsCoordinateParser::parseCoordinates(
$parameters['location2'] );
+ }
+
+ if ( $start && $end ) {
+ $output = MapsDistanceParser::formatDistance(
MapsGeoFunctions::calculateDistance( $start, $end ), $parameters['unit'],
$parameters['decimals'] );
+ } else {
+ // TODO: use ParserHook class methods to handle errors
+ global $egValidatorFatalLevel;
+
+ $fails = array();
+ if ( !$start ) $fails[] = $parameters['location1'];
+ if ( !$end ) $fails[] = $parameters['location2'];
+
+ switch ( $egValidatorFatalLevel ) {
+ case Validator_ERRORS_NONE:
+ $output = '';
+ break;
+ case Validator_ERRORS_WARN:
+ $output = '<b>' . htmlspecialchars(
wfMsgExt( 'validator_warning_parameters', array( 'parsemag' ), count( $fails )
) ) . '</b>';
+ break;
+ case Validator_ERRORS_SHOW: default:
+ global $wgLang;
+
+ if ( $canGeocode ) {
+ $output = htmlspecialchars(
wfMsgExt( 'maps_geocoding_failed', array( 'parsemag' ), $wgLang->listToText(
$fails ), count( $fails ) ) );
+ } else {
+ $output = htmlspecialchars(
wfMsgExt( 'maps_unrecognized_coords', array( 'parsemag' ), $wgLang->listToText(
$fails ), count( $fails ) ) );
+ }
+ break;
+ }
+ }
+
+ return $output;
+ }
+
+}
\ No newline at end of file
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