| Index: trunk/extensions/Maps/includes/Maps_Layers.php |
| — | — | @@ -0,0 +1,74 @@ |
| | 2 | +<?php |
| | 3 | + |
| | 4 | +/** |
| | 5 | + * Static class for layer functionality. |
| | 6 | + * |
| | 7 | + * @since 0.7.2 |
| | 8 | + * |
| | 9 | + * @file Maps_Layers.php |
| | 10 | + * @ingroup Maps |
| | 11 | + * |
| | 12 | + * @author Jeroen De Dauw |
| | 13 | + */ |
| | 14 | +class MapsLayers { |
| | 15 | + |
| | 16 | + protected static $classes = array(); |
| | 17 | + protected static $services = array(); |
| | 18 | + |
| | 19 | + /** |
| | 20 | + * Returns a new instance of a layer class for the provided layer type. |
| | 21 | + * |
| | 22 | + * @since 0.7.2 |
| | 23 | + * |
| | 24 | + * @param $string $type |
| | 25 | + * |
| | 26 | + * @return MapsLayer |
| | 27 | + */ |
| | 28 | + public static function getLayer( $type ) { |
| | 29 | + if ( self::hasLayer( $type ) ) { |
| | 30 | + return new self::$classes[$type](); |
| | 31 | + } |
| | 32 | + else { |
| | 33 | + throw new exception( "There is no layer class for layer of type $type." ); |
| | 34 | + } |
| | 35 | + } |
| | 36 | + |
| | 37 | + /** |
| | 38 | + * Returns if there is a layer class for the provided layer type. |
| | 39 | + * |
| | 40 | + * @since 0.7.2 |
| | 41 | + * |
| | 42 | + * @param $string $type |
| | 43 | + * |
| | 44 | + * @return boolean |
| | 45 | + */ |
| | 46 | + public static function hasLayer( $type, $service = null ) { |
| | 47 | + if ( array_key_exists( $type, self::$classes ) && array_key_exists( $type, self::$services ) ) { |
| | 48 | + return is_null( $service ) || in_array( $service, self::$services[$type] ); |
| | 49 | + } |
| | 50 | + else { |
| | 51 | + return false; |
| | 52 | + } |
| | 53 | + } |
| | 54 | + |
| | 55 | + /** |
| | 56 | + * Register a layer. |
| | 57 | + * |
| | 58 | + * @since 0.7.2 |
| | 59 | + */ |
| | 60 | + public static function registerLayer( $type, $layerClass, $serviceIdentifier ) { |
| | 61 | + self::$classes[$type] = $layerClass; |
| | 62 | + self::$services[$type][] = $serviceIdentifier; |
| | 63 | + } |
| | 64 | + |
| | 65 | + /** |
| | 66 | + * Initializes the layers functionality by registering the layer types |
| | 67 | + * by firing the hook. |
| | 68 | + * |
| | 69 | + * @since 0.7.2 |
| | 70 | + */ |
| | 71 | + protected static function initializeLayers() { |
| | 72 | + wfRunHooks( 'MappingLayersInitialization' ); |
| | 73 | + } |
| | 74 | + |
| | 75 | +} |
| \ No newline at end of file |
| Property changes on: trunk/extensions/Maps/includes/Maps_Layers.php |
| ___________________________________________________________________ |
| Added: svn:eol-style |
| 1 | 76 | + native |