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Diffstat (limited to 'misc/openlayers/lib/OpenLayers/Format/GeoRSS.js')
| -rw-r--r-- | misc/openlayers/lib/OpenLayers/Format/GeoRSS.js | 409 |
1 files changed, 0 insertions, 409 deletions
diff --git a/misc/openlayers/lib/OpenLayers/Format/GeoRSS.js b/misc/openlayers/lib/OpenLayers/Format/GeoRSS.js deleted file mode 100644 index cbbb4d8..0000000 --- a/misc/openlayers/lib/OpenLayers/Format/GeoRSS.js +++ /dev/null @@ -1,409 +0,0 @@ -/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for - * full list of contributors). Published under the 2-clause BSD license. - * See license.txt in the OpenLayers distribution or repository for the - * full text of the license. */ - -/** - * @requires OpenLayers/Format/XML.js - * @requires OpenLayers/Feature/Vector.js - * @requires OpenLayers/Geometry/Point.js - * @requires OpenLayers/Geometry/LineString.js - * @requires OpenLayers/Geometry/Polygon.js - */ - -/** - * Class: OpenLayers.Format.GeoRSS - * Read/write GeoRSS parser. Create a new instance with the - * <OpenLayers.Format.GeoRSS> constructor. - * - * Inherits from: - * - <OpenLayers.Format.XML> - */ -OpenLayers.Format.GeoRSS = OpenLayers.Class(OpenLayers.Format.XML, { - - /** - * APIProperty: rssns - * {String} RSS namespace to use. Defaults to - * "http://backend.userland.com/rss2" - */ - rssns: "http://backend.userland.com/rss2", - - /** - * APIProperty: featurens - * {String} Feature Attributes namespace. Defaults to - * "http://mapserver.gis.umn.edu/mapserver" - */ - featureNS: "http://mapserver.gis.umn.edu/mapserver", - - /** - * APIProperty: georssns - * {String} GeoRSS namespace to use. Defaults to - * "http://www.georss.org/georss" - */ - georssns: "http://www.georss.org/georss", - - /** - * APIProperty: geons - * {String} W3C Geo namespace to use. Defaults to - * "http://www.w3.org/2003/01/geo/wgs84_pos#" - */ - geons: "http://www.w3.org/2003/01/geo/wgs84_pos#", - - /** - * APIProperty: featureTitle - * {String} Default title for features. Defaults to "Untitled" - */ - featureTitle: "Untitled", - - /** - * APIProperty: featureDescription - * {String} Default description for features. Defaults to "No Description" - */ - featureDescription: "No Description", - - /** - * Property: gmlParse - * {Object} GML Format object for parsing features - * Non-API and only created if necessary - */ - gmlParser: null, - - /** - * APIProperty: xy - * {Boolean} Order of the GML coordinate: true:(x,y) or false:(y,x) - * For GeoRSS the default is (y,x), therefore: false - */ - xy: false, - - /** - * Constructor: OpenLayers.Format.GeoRSS - * Create a new parser for GeoRSS. - * - * Parameters: - * options - {Object} An optional object whose properties will be set on - * this instance. - */ - - /** - * Method: createGeometryFromItem - * Return a geometry from a GeoRSS Item. - * - * Parameters: - * item - {DOMElement} A GeoRSS item node. - * - * Returns: - * {<OpenLayers.Geometry>} A geometry representing the node. - */ - createGeometryFromItem: function(item) { - var point = this.getElementsByTagNameNS(item, this.georssns, "point"); - var lat = this.getElementsByTagNameNS(item, this.geons, 'lat'); - var lon = this.getElementsByTagNameNS(item, this.geons, 'long'); - - var line = this.getElementsByTagNameNS(item, - this.georssns, - "line"); - var polygon = this.getElementsByTagNameNS(item, - this.georssns, - "polygon"); - var where = this.getElementsByTagNameNS(item, - this.georssns, - "where"); - var box = this.getElementsByTagNameNS(item, - this.georssns, - "box"); - - if (point.length > 0 || (lat.length > 0 && lon.length > 0)) { - var location; - if (point.length > 0) { - location = OpenLayers.String.trim( - point[0].firstChild.nodeValue).split(/\s+/); - if (location.length !=2) { - location = OpenLayers.String.trim( - point[0].firstChild.nodeValue).split(/\s*,\s*/); - } - } else { - location = [parseFloat(lat[0].firstChild.nodeValue), - parseFloat(lon[0].firstChild.nodeValue)]; - } - - var geometry = new OpenLayers.Geometry.Point(location[1], location[0]); - - } else if (line.length > 0) { - var coords = OpenLayers.String.trim(this.getChildValue(line[0])).split(/\s+/); - var components = []; - var point; - for (var i=0, len=coords.length; i<len; i+=2) { - point = new OpenLayers.Geometry.Point(coords[i+1], coords[i]); - components.push(point); - } - geometry = new OpenLayers.Geometry.LineString(components); - } else if (polygon.length > 0) { - var coords = OpenLayers.String.trim(this.getChildValue(polygon[0])).split(/\s+/); - var components = []; - var point; - for (var i=0, len=coords.length; i<len; i+=2) { - point = new OpenLayers.Geometry.Point(coords[i+1], coords[i]); - components.push(point); - } - geometry = new OpenLayers.Geometry.Polygon([new OpenLayers.Geometry.LinearRing(components)]); - } else if (where.length > 0) { - if (!this.gmlParser) { - this.gmlParser = new OpenLayers.Format.GML({'xy': this.xy}); - } - var feature = this.gmlParser.parseFeature(where[0]); - geometry = feature.geometry; - } else if (box.length > 0) { - var coords = OpenLayers.String.trim(box[0].firstChild.nodeValue).split(/\s+/); - var components = []; - var point; - if (coords.length > 3) { - point = new OpenLayers.Geometry.Point(coords[1], coords[0]); - components.push(point); - point = new OpenLayers.Geometry.Point(coords[1], coords[2]); - components.push(point); - point = new OpenLayers.Geometry.Point(coords[3], coords[2]); - components.push(point); - point = new OpenLayers.Geometry.Point(coords[3], coords[0]); - components.push(point); - point = new OpenLayers.Geometry.Point(coords[1], coords[0]); - components.push(point); - } - geometry = new OpenLayers.Geometry.Polygon([new OpenLayers.Geometry.LinearRing(components)]); - } - - if (geometry && this.internalProjection && this.externalProjection) { - geometry.transform(this.externalProjection, - this.internalProjection); - } - - return geometry; - }, - - /** - * Method: createFeatureFromItem - * Return a feature from a GeoRSS Item. - * - * Parameters: - * item - {DOMElement} A GeoRSS item node. - * - * Returns: - * {<OpenLayers.Feature.Vector>} A feature representing the item. - */ - createFeatureFromItem: function(item) { - var geometry = this.createGeometryFromItem(item); - - /* Provide defaults for title and description */ - var title = this._getChildValue(item, "*", "title", this.featureTitle); - - /* First try RSS descriptions, then Atom summaries */ - var description = this._getChildValue( - item, "*", "description", - this._getChildValue(item, "*", "content", - this._getChildValue(item, "*", "summary", this.featureDescription))); - - /* If no link URL is found in the first child node, try the - href attribute */ - var link = this._getChildValue(item, "*", "link"); - if(!link) { - try { - link = this.getElementsByTagNameNS(item, "*", "link")[0].getAttribute("href"); - } catch(e) { - link = null; - } - } - - var id = this._getChildValue(item, "*", "id", null); - - var data = { - "title": title, - "description": description, - "link": link - }; - var feature = new OpenLayers.Feature.Vector(geometry, data); - feature.fid = id; - return feature; - }, - - /** - * Method: _getChildValue - * - * Parameters: - * node - {DOMElement} - * nsuri - {String} Child node namespace uri ("*" for any). - * name - {String} Child node name. - * def - {String} Optional string default to return if no child found. - * - * Returns: - * {String} The value of the first child with the given tag name. Returns - * default value or empty string if none found. - */ - _getChildValue: function(node, nsuri, name, def) { - var value; - var eles = this.getElementsByTagNameNS(node, nsuri, name); - if(eles && eles[0] && eles[0].firstChild - && eles[0].firstChild.nodeValue) { - value = this.getChildValue(eles[0]); - } else { - value = (def == undefined) ? "" : def; - } - return value; - }, - - /** - * APIMethod: read - * Return a list of features from a GeoRSS doc - * - * Parameters: - * doc - {Element} - * - * Returns: - * {Array(<OpenLayers.Feature.Vector>)} - */ - read: function(doc) { - if (typeof doc == "string") { - doc = OpenLayers.Format.XML.prototype.read.apply(this, [doc]); - } - - /* Try RSS items first, then Atom entries */ - var itemlist = null; - itemlist = this.getElementsByTagNameNS(doc, '*', 'item'); - if (itemlist.length == 0) { - itemlist = this.getElementsByTagNameNS(doc, '*', 'entry'); - } - - var numItems = itemlist.length; - var features = new Array(numItems); - for(var i=0; i<numItems; i++) { - features[i] = this.createFeatureFromItem(itemlist[i]); - } - return features; - }, - - - /** - * APIMethod: write - * Accept Feature Collection, and return a string. - * - * Parameters: - * features - {Array(<OpenLayers.Feature.Vector>)} List of features to serialize into a string. - */ - write: function(features) { - var georss; - if(OpenLayers.Util.isArray(features)) { - georss = this.createElementNS(this.rssns, "rss"); - for(var i=0, len=features.length; i<len; i++) { - georss.appendChild(this.createFeatureXML(features[i])); - } - } else { - georss = this.createFeatureXML(features); - } - return OpenLayers.Format.XML.prototype.write.apply(this, [georss]); - }, - - /** - * Method: createFeatureXML - * Accept an <OpenLayers.Feature.Vector>, and build a geometry for it. - * - * Parameters: - * feature - {<OpenLayers.Feature.Vector>} - * - * Returns: - * {DOMElement} - */ - createFeatureXML: function(feature) { - var geometryNode = this.buildGeometryNode(feature.geometry); - var featureNode = this.createElementNS(this.rssns, "item"); - var titleNode = this.createElementNS(this.rssns, "title"); - titleNode.appendChild(this.createTextNode(feature.attributes.title ? feature.attributes.title : "")); - var descNode = this.createElementNS(this.rssns, "description"); - descNode.appendChild(this.createTextNode(feature.attributes.description ? feature.attributes.description : "")); - featureNode.appendChild(titleNode); - featureNode.appendChild(descNode); - if (feature.attributes.link) { - var linkNode = this.createElementNS(this.rssns, "link"); - linkNode.appendChild(this.createTextNode(feature.attributes.link)); - featureNode.appendChild(linkNode); - } - for(var attr in feature.attributes) { - if (attr == "link" || attr == "title" || attr == "description") { continue; } - var attrText = this.createTextNode(feature.attributes[attr]); - var nodename = attr; - if (attr.search(":") != -1) { - nodename = attr.split(":")[1]; - } - var attrContainer = this.createElementNS(this.featureNS, "feature:"+nodename); - attrContainer.appendChild(attrText); - featureNode.appendChild(attrContainer); - } - featureNode.appendChild(geometryNode); - return featureNode; - }, - - /** - * Method: buildGeometryNode - * builds a GeoRSS node with a given geometry - * - * Parameters: - * geometry - {<OpenLayers.Geometry>} - * - * Returns: - * {DOMElement} A gml node. - */ - buildGeometryNode: function(geometry) { - if (this.internalProjection && this.externalProjection) { - geometry = geometry.clone(); - geometry.transform(this.internalProjection, - this.externalProjection); - } - var node; - // match Polygon - if (geometry.CLASS_NAME == "OpenLayers.Geometry.Polygon") { - node = this.createElementNS(this.georssns, 'georss:polygon'); - - node.appendChild(this.buildCoordinatesNode(geometry.components[0])); - } - // match LineString - else if (geometry.CLASS_NAME == "OpenLayers.Geometry.LineString") { - node = this.createElementNS(this.georssns, 'georss:line'); - - node.appendChild(this.buildCoordinatesNode(geometry)); - } - // match Point - else if (geometry.CLASS_NAME == "OpenLayers.Geometry.Point") { - node = this.createElementNS(this.georssns, 'georss:point'); - node.appendChild(this.buildCoordinatesNode(geometry)); - } else { - throw "Couldn't parse " + geometry.CLASS_NAME; - } - return node; - }, - - /** - * Method: buildCoordinatesNode - * - * Parameters: - * geometry - {<OpenLayers.Geometry>} - */ - buildCoordinatesNode: function(geometry) { - var points = null; - - if (geometry.components) { - points = geometry.components; - } - - var path; - if (points) { - var numPoints = points.length; - var parts = new Array(numPoints); - for (var i = 0; i < numPoints; i++) { - parts[i] = points[i].y + " " + points[i].x; - } - path = parts.join(" "); - } else { - path = geometry.y + " " + geometry.x; - } - return this.createTextNode(path); - }, - - CLASS_NAME: "OpenLayers.Format.GeoRSS" -}); |