[Mapbender-commits] r6613 - trunk/mapbender/http/plugins

[svn_mapbender at osgeo.org]

Author: verenadiewald
Date: 2010-07-22 14:48:58 +0000 (Thu, 22 Jul 2010)
New Revision: 6613

Added:
   trunk/mapbender/http/plugins/mb_getApi.js
Log:
api for get params

Added: trunk/mapbender/http/plugins/mb_getApi.js
===================================================================
--- trunk/mapbender/http/plugins/mb_getApi.js	                        (rev 0)
+++ trunk/mapbender/http/plugins/mb_getApi.js	2010-07-22 14:48:58 UTC (rev 6613)
@@ -0,0 +1,141 @@
+var $getApi = $(this);
+
+var GetApi = function (o) {
+
+	var getParams = function () {
+		var params = {};
+
+		var getString = document.location.search.substr(1,document.location.search.length);
+		if (getString === '') {
+			return null;
+		}	
+	
+		var gArr = getString.split('&');
+		for (i = 0; i < gArr.length; ++i) {
+			var v = '';
+			vArr = gArr[i].split('=');
+	        	if (vArr.length > 1) {
+				v = vArr[1];
+			}
+			var key = unescape(vArr[0]);
+			params[key] = unescape(v);			
+		}
+		return params;
+	};
+
+	var zoomToBbox = function (zoomBbox) { 
+		options.$target.each(function () {
+			var mapObj = $(this).mapbender();
+			if (mapObj.id.match(/^overview/)) {
+				return;
+			}
+	
+			if (mapObj === null) {
+				var e = new Mb_exception("mb_getApi: unknown map object");
+				return;
+			}
+	
+			if (zoomBbox === "") {
+				var e = new Mapbender.Notice("mb_getApi: no zoomBbox found.");
+				return;
+			}
+			else {
+				var zoomBboxParams = zoomBbox.split(",");
+				var newExtent = new Mapbender.Extent(
+					parseFloat(zoomBboxParams[0]),
+					parseFloat(zoomBboxParams[1]),
+					parseFloat(zoomBboxParams[2]),
+					parseFloat(zoomBboxParams[3])
+				);
+				//check if EPSG param is given with ZOOM parameter
+				if (zoomBboxParams.length === 5 && zoomBboxParams[4].match(/EPSG/)) {
+					mapObj.transformCoords({
+						extent : newExtent,
+						crs : zoomBboxParams[4] 
+					});
+				} 
+				else {
+					mapObj.calculateExtent(newExtent);
+					mapObj.setMapRequest();		
+				}
+			}
+		});
+	};
+
+	var params = getParams();
+	
+	Mapbender.events.init.register(function () {
+		setCRS = function (params) {
+			if (!params.CRS) { 
+				return;
+			}
+			
+			options.$target.each(function () {
+				var mapObj = $(this).mapbender();
+				mapObj.setCrs({
+					crs : params.CRS,
+					callback : function () {
+						setZOOM(params);
+					}
+				}); 
+			});
+	   	}
+		
+		setZOOM = function (params) {
+			if (!params.ZOOM) { 
+				return;
+			}
+			
+			options.$target.each(function () {
+				var mapObj = $(this).mapbender();
+				if (mapObj.id.match(/^overview/)) {
+					return;
+				}
+		
+				if (mapObj === null) {
+					var e = new Mb_exception("mb_getApi: unknown map object");
+					return;
+				}
+		
+				var zoomParams = params.ZOOM.split(",");
+				
+				var epsg = "";
+				if(zoomParams[zoomParams.length -1].match(/EPSG/)){
+					epsg = zoomParams[zoomParams.length -1];
+					zoomParams.pop();
+				}
+				
+				if (zoomParams.length === 4) {
+					var newExtent = new Mapbender.Extent(
+						parseFloat(zoomParams[0]),
+						parseFloat(zoomParams[1]),
+						parseFloat(zoomParams[2]),
+						parseFloat(zoomParams[3])
+					);
+					
+					if (epsg) {
+						mapObj.transformExtent({
+							extent : newExtent,
+							crs : epsg
+						});
+					}
+					else {
+						mapObj.calculateExtent(newExtent);
+						mapObj.setMapRequest();
+					}
+				}
+				
+				//zoomParams contains 2 coordinates + scale (and optional EPSG param)
+				if (zoomParams.length === 3) {
+					mapObj.zoom(true, zoomParams[2], zoomParams[0], zoomParams[1], epsg);
+				} 
+			});
+		}
+		
+		setCRS(params);
+	    setZOOM(params);
+	});
+
+};
+
+$getApi.mapbender(new GetApi(options));