Support geojson and topojson as file types for the file layer.

src/Bundle/Resources/config/config.yml

@@ -38,6 +38,13 @@ parameters:
     - 'circle'
     - 'circleMarker'
 
+  netzmacht.contao_leaflet.file_formats:
+    gpx: ['gpx']
+    kml: ['kml']
+    wkt: ['wkt']
+    geojson: ['json', 'geojson']
+    topojson: ['json', 'topojson']
+
   # When creating a GeoJSON feature of a map object a feature.properties.model object is passed.
   # Define the properties you always want to set.
   #

src/Bundle/Resources/config/listeners.yml

@@ -39,6 +39,7 @@ services:
       - '%netzmacht.contao_leaflet.layers%'
       - '%netzmacht.contao_leaflet.providers%'
       - '%netzmacht.contao_leaflet.amenities%'
+      - '%netzmacht.contao_leaflet.file_formats%'
 
   netzmacht.contao_leaflet.listeners.dca.marker:
     class: Netzmacht\Contao\Leaflet\Listener\Dca\MarkerDcaListener

src/Bundle/Resources/contao/config/config.php

@@ -49,6 +49,10 @@ array_insert(
     ]
 );
 
+if (TL_MODE === 'BE') {
+    $GLOBALS['TL_CSS'][] = 'bundles/netzmachtcontaoleaflet/css/backend_hacks.css';
+}
+
 /*
  * Models.
  */

src/Bundle/Resources/contao/dca/tl_leaflet_layer.php

@@ -219,7 +219,7 @@ $GLOBALS['TL_DCA']['tl_leaflet_layer'] = [
         ],
 
         'file extends default' => [
-            '+config' => ['file', 'boundsMode'],
+            '+config' => ['boundsMode', 'fileFormat'],
             '+expert' => [
                 'onEachFeature',
                 'pointToLayer',
@@ -235,6 +235,9 @@ $GLOBALS['TL_DCA']['tl_leaflet_layer'] = [
             'MapBox' => ['tile_provider_key'],
             'HERE'   => ['tile_provider_key', 'tile_provider_code'],
         ],
+        'fileFormat' => [
+            '!' => ['file']
+        ]
     ],
 
     'metasubpalettes' => [
@@ -861,15 +864,34 @@ $GLOBALS['TL_DCA']['tl_leaflet_layer'] = [
             ],
             'sql'       => 'mediumtext NULL',
         ],
+        'fileFormat' => [
+            'label'            => &$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormat'],
+            'exclude'          => true,
+            'inputType'        => 'select',
+            'filter'           => true,
+            'eval'             => [
+                'mandatory'          => true,
+                'tl_class'           => 'w50',
+                'includeBlankOption' => true,
+                'submitOnChange'     => true,
+                'chosen'             => true,
+                'helpwizard'         => true,
+            ],
+            'options_callback' => ['netzmacht.contao_leaflet.listeners.dca.layer', 'getFileFormats'],
+            'reference'        => &$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats'],
+            'sql'              => "varchar(32) NOT NULL default ''",
+        ],
         'file'                           => [
             'label'     => &$GLOBALS['TL_LANG']['tl_leaflet_layer']['file'],
             'exclude'   => true,
             'inputType' => 'fileTree',
+            'load_callback' => [
+                ['netzmacht.contao_leaflet.listeners.dca.layer', 'prepareFileWidget'],
+            ],
             'eval'      => [
                 'filesOnly'  => true,
                 'fieldType'  => 'radio',
                 'mandatory'  => true,
-                'extensions' => 'gpx,kml,wkt',
                 'tl_class'   => 'clr',
             ],
             'sql'       => 'binary(16) NULL',

src/Bundle/Resources/contao/languages/en/tl_leaflet_layer.php

@@ -145,14 +145,27 @@ $GLOBALS['TL_LANG']['tl_leaflet_layer']['amenity'][0]                    = 'Amen
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['amenity'][1]                    = 'OSM amenity.';
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['amenityIcon'][1]                = 'Icon';
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['amenityIcon'][0]                = 'Icon style';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormat'][0]                 = 'File formats';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormat'][1]                 = 'Choose which file format is used.';
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['file'][0]                       = 'File';
-$GLOBALS['TL_LANG']['tl_leaflet_layer']['file'][1]                       = 'Choose a file containing geodata. Supported formats are gpx,kml and wkt.';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['file'][1]                       = 'Choose a file containing geodata. Supported formats are: %s.';
 
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['groupTypes']['layer'][0]   = 'Layer group';
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['groupTypes']['layer'][1]   = 'Basic layer group. <br> See <a href="http://leafletjs.com/reference.html#layergroup" target="_blank">http://leafletjs.com/reference.html#layergroup</a>';
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['groupTypes']['feature'][0] = 'Feature group';
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['groupTypes']['feature'][1] = 'Extended layer group with events and popup support. <br>See <a href="http://leafletjs.com/reference.html#featuregroup" target="_blank">http://leafletjs.com/reference.html#featuregroup</a>';
 
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['gpx'][0]      = 'GPX';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['gpx'][1]      = 'GPS Exchange format. <a href="https://github.com/mapbox/togeojson#gpx-feature-support" target="_blank">Read the documentation</a> for more information.';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['kml'][0]      = 'KML';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['kml'][1]      = 'Keyhole Markup Language. <a href="https://github.com/mapbox/togeojson#kml-feature-support" target="_blank">Read the documentation</a> for more information.';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['wkt'][0]      = 'WKT';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['wkt'][1]      = 'Well-known text  <a href="https://github.com/mapbox/togeojson#kml-feature-support" target="_blank">Read the documentation</a> for more information.';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['topojson'][0] = 'TopoJSON';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['topojson'][1] = 'TopoJSON is a topological geospatial data interchange format based on GeoJSON. <a href="https://github.com/topojson/topojson#api-reference" target="_blank">Read the documentation</a> for more information.';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['geojson'][0]  = 'GeoJSON';
+$GLOBALS['TL_LANG']['tl_leaflet_layer']['fileFormats']['geojson'][1]  = 'GeoJSON is a format for encoding a variety of geographic data structures. <a href="https://github.com/mapbox/wellknown" target="_blank">Read the documentation</a> for more information.';
+
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['pasteinto'][1]  = 'Paste into layer %s';
 $GLOBALS['TL_LANG']['tl_leaflet_layer']['pasteafter'][1] = 'Paste after layer %s';
 

src/Bundle/Resources/public/css/backend_hacks.css

@@ -0,0 +1,3 @@
+.tl_help_table a {
+    color: #77ac45
+}