1 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
---|
2 | * full list of contributors). Published under the Clear BSD license. |
---|
3 | * See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
---|
4 | * full text of the license. */ |
---|
5 | |
---|
6 | /** |
---|
7 | * @requires OpenLayers/Feature.js |
---|
8 | */ |
---|
9 | |
---|
10 | /** |
---|
11 | * Class: OpenLayers.Feature.WFS |
---|
12 | * WFS handling class, for use as a featureClass on the WFS layer for handling |
---|
13 | * 'point' WFS types. Good for subclassing when creating a custom WFS like |
---|
14 | * XML application. |
---|
15 | * |
---|
16 | * Inherits from: |
---|
17 | * - <OpenLayers.Feature> |
---|
18 | */ |
---|
19 | OpenLayers.Feature.WFS = OpenLayers.Class(OpenLayers.Feature, { |
---|
20 | |
---|
21 | /** |
---|
22 | * Constructor: OpenLayers.Feature.WFS |
---|
23 | * Create a WFS feature. |
---|
24 | * |
---|
25 | * Parameters: |
---|
26 | * layer - {<OpenLayers.Layer>} |
---|
27 | * xmlNode - {XMLNode} |
---|
28 | */ |
---|
29 | initialize: function(layer, xmlNode) { |
---|
30 | var newArguments = arguments; |
---|
31 | var data = this.processXMLNode(xmlNode); |
---|
32 | newArguments = new Array(layer, data.lonlat, data); |
---|
33 | OpenLayers.Feature.prototype.initialize.apply(this, newArguments); |
---|
34 | this.createMarker(); |
---|
35 | this.layer.addMarker(this.marker); |
---|
36 | }, |
---|
37 | |
---|
38 | /** |
---|
39 | * Method: destroy |
---|
40 | * nullify references to prevent circular references and memory leaks |
---|
41 | */ |
---|
42 | destroy: function() { |
---|
43 | if (this.marker != null) { |
---|
44 | this.layer.removeMarker(this.marker); |
---|
45 | } |
---|
46 | OpenLayers.Feature.prototype.destroy.apply(this, arguments); |
---|
47 | }, |
---|
48 | |
---|
49 | /** |
---|
50 | * Method: processXMLNode |
---|
51 | * When passed an xmlNode, parses it for a GML point, and passes |
---|
52 | * back an object describing that point. |
---|
53 | * |
---|
54 | * For subclasses of Feature.WFS, this is the feature to change. |
---|
55 | * |
---|
56 | * Parameters: |
---|
57 | * xmlNode - {XMLNode} |
---|
58 | * |
---|
59 | * Returns: |
---|
60 | * {Object} Data Object with 'id', 'lonlat', and private properties set |
---|
61 | */ |
---|
62 | processXMLNode: function(xmlNode) { |
---|
63 | //this should be overridden by subclasses |
---|
64 | // must return an Object with 'id' and 'lonlat' values set |
---|
65 | var point = OpenLayers.Ajax.getElementsByTagNameNS(xmlNode, "http://www.opengis.net/gml", "gml", "Point"); |
---|
66 | var text = OpenLayers.Util.getXmlNodeValue(OpenLayers.Ajax.getElementsByTagNameNS(point[0], "http://www.opengis.net/gml","gml", "coordinates")[0]); |
---|
67 | var floats = text.split(","); |
---|
68 | return {lonlat: new OpenLayers.LonLat(parseFloat(floats[0]), |
---|
69 | parseFloat(floats[1])), |
---|
70 | id: null}; |
---|
71 | |
---|
72 | }, |
---|
73 | |
---|
74 | CLASS_NAME: "OpenLayers.Feature.WFS" |
---|
75 | }); |
---|
76 | |
---|
77 | |
---|
78 | |
---|
79 | |
---|
80 | |
---|