From 636e04a13a96f11c67d82aebfb4ee9fd51b61110 Mon Sep 17 00:00:00 2001
From: Antoine Beaupré <anarcat@koumbit.org>
Date: Sat, 25 Aug 2012 08:53:30 -0400
Subject: make layers an array

this simplifies the code, make the configuration more intuitive, at
the cost of making the labels on the layers automatically generated
and therefore less customizable
---
 IkiWiki/Plugin/osm.pm        | 14 ++------------
 underlays/osm/ikiwiki/osm.js | 29 ++++++++++++-----------------
 2 files changed, 14 insertions(+), 29 deletions(-)

diff --git a/IkiWiki/Plugin/osm.pm b/IkiWiki/Plugin/osm.pm
index 4c50fec53..2c555f372 100644
--- a/IkiWiki/Plugin/osm.pm
+++ b/IkiWiki/Plugin/osm.pm
@@ -69,17 +69,8 @@ sub getsetup () {
 		},
 		osm_layers => {
 			type => "string",
-			example => { OSM => 1,
-				     Google => 'Hybrid',
-			},
-			description => "Layers to use in the map. If the value is 1, use the default for the map, otherwise the argument is a URL (for OSM layers, e.g. http://a.tile.stamen.com/toner/\${z}/\${x}/\${y}.png) or a type option for Google maps (Normal, Satellite, Hybrid or Physical).",
-			safe => 0,
-			rebuild => 1,
-		},
-		osm_layers_order => {
-			type => "string",
-			example => { 'OSM', 'Google' },
-			description => "Display order for the layers. The first layer is the default layer, must match exactly the left side of the osm_layers hash.",
+			example => { 'OSM', 'GoogleSattelite' },
+			description => "Layers to use in the map. Can be either the 'OSM' string or a type option for Google maps (GoogleNormal, GoogleSatellite, GoogleHybrid or GooglePhysical). It can also be an arbitrary URL in a syntax acceptable for OpenLayers.Layer.OSM.url parameter.",
 			safe => 0,
 			rebuild => 1,
 		},
@@ -590,7 +581,6 @@ sub map_setup_code($;@) {
 		$options{'mapurl'} = $mapurl;
 	}
         $options{'layers'} = $config{osm_layers};
-        $options{'layers_order'} = $config{osm_layers_order};
 
 	return "mapsetup('mapdiv-$name', " . to_json(\%options) . ");";
 }
diff --git a/underlays/osm/ikiwiki/osm.js b/underlays/osm/ikiwiki/osm.js
index 8b2170706..5ba3223ad 100644
--- a/underlays/osm/ikiwiki/osm.js
+++ b/underlays/osm/ikiwiki/osm.js
@@ -41,23 +41,22 @@ function mapsetup(divname, options) {
 		numZoomLevels: 19
 	});
 
-	for (x in options.layers_order) {
-		layer = options.layers_order[x];
-		console.log("setting up layer: " + layer + " with argument : " + options.layers[layer]);
+	for (x in options.layers) {
+		layer = options.layers[x];
+		console.log("setting up layer: " + layer);
 		if (layer.indexOf("Google") >= 0) {
 			if (options.google_apikey && options.google_apikey != 'null') {
 				var gtype = G_NORMAL_MAP;
-				var gtext = "";
-				if (options.layers[layer] == "Satellite") {
+				if (layer.indexOf("Satellite") >= 0) {
 					gtype = G_SATELLITE_MAP;
-				} else if (options.layers[layer] == "Hybrid") {
+				} else if (layer.indexOf("Hybrid") >= 0) {
 					gtype = G_HYBRID_MAP // the normal map overlaying the satellite photographs
-				} else if (options.layers[layer] == "Physical") {
+				} else if (layer.indexOf("Physical") >= 0) {
 					gtype = G_PHYSICAL_MAP // terrain information
 				}
 				// this nightmare is possible through http://docs.openlayers.org/library/spherical_mercator.html
 				googleLayer = new OpenLayers.Layer.Google(
-					"Google (" + options.layers[layer] + ")",
+					layer,
 					{type: gtype,
 					 'sphericalMercator': true,
 					 'maxExtent': new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34),
@@ -67,15 +66,11 @@ function mapsetup(divname, options) {
 			} else {
 				console.log("no API key defined for Google layer, skipping");
 			}
-		} else { // OSM
-			if (options.layers[layer] != 1) {
-				l = options.layers[layer];
-				fqdn = l.split("/")[2].split(".");
-				text = fqdn[fqdn.length-2] + "." + fqdn[fqdn.length-1];
-				map.addLayer(new OpenLayers.Layer.OSM(layer + " (" + text + ")", l));
-			} else {
-				map.addLayer(new OpenLayers.Layer.OSM(layer + " (Mapnik)"));
-			}
+		} else if (layer == 'OSM') { // OSM default layer
+			map.addLayer(new OpenLayers.Layer.OSM("OSM (Mapnik)"));
+		} else { // assumed to be a URL
+			text = layer.match(/([^.\/]*\.[^.\/]*(\/[^\$]*)?)\/.*$/i) // take the first two parts of the FQDN and everything before the first $
+			map.addLayer(new OpenLayers.Layer.OSM("OSM (" + text[1]  + ")", layer));
 		}
 	}
 
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