1 package net.systemeD.halcyon.connection {
5 import flash.events.EventDispatcher;
6 import flash.events.Event;
8 public class Connection extends EventDispatcher {
10 private static var connectionInstance:Connection = null;
12 protected static var policyURL:String;
13 protected static var apiBaseURL:String;
14 protected static var params:Object;
16 public static function getConnection(initparams:Object=null):Connection {
17 if ( connectionInstance == null ) {
19 params = initparams == null ? new Object() : initparams;
20 policyURL = getParam("policy", "http://127.0.0.1:3000/api/crossdomain.xml");
21 apiBaseURL = getParam("api", "http://127.0.0.1:3000/api/0.6/");
22 var connectType:String = getParam("connection", "XML");
24 if ( connectType == "XML" )
25 connectionInstance = new XMLConnection();
27 connectionInstance = new AMFConnection();
29 return connectionInstance;
32 public static function getParam(name:String, defaultValue:String):String {
33 trace("Returning param "+name+" as "+(params[name] == null ? defaultValue : params[name]));
34 return params[name] == null ? defaultValue : params[name];
37 public static function get apiBase():String {
41 public static function get serverName():String {
42 return getParam("serverName", "Localhost");
45 public static function getConnectionInstance():Connection {
46 return connectionInstance;
49 public function getEnvironment(responder:Responder):void {}
52 public static var LOAD_STARTED:String = "load_started";
53 public static var LOAD_COMPLETED:String = "load_completed";
54 public static var SAVE_STARTED:String = "save_started";
55 public static var SAVE_COMPLETED:String = "save_completed";
56 public static var NEW_CHANGESET:String = "new_changeset";
57 public static var NEW_CHANGESET_ERROR:String = "new_changeset_error";
58 public static var NEW_NODE:String = "new_node";
59 public static var NEW_WAY:String = "new_way";
60 public static var NEW_RELATION:String = "new_relation";
61 public static var NEW_POI:String = "new_poi";
62 public static var TAG_CHANGED:String = "tag_change";
63 public static var NODE_MOVED:String = "node_moved";
64 public static var WAY_NODE_ADDED:String = "way_node_added";
65 public static var WAY_NODE_REMOVED:String = "way_node_removed";
66 public static var NODE_DELETED:String = "node_deleted";
67 public static var WAY_DELETED:String = "way_deleted";
68 public static var RELATION_DELETED:String = "relation_deleted";
69 public static var RELATION_MEMBER_ADDED:String = "relation_member_added";
70 public static var RELATION_MEMBER_REMOVED:String = "relation_member_deleted";
71 public static var ADDED_TO_RELATION:String = "added_to_relation";
72 public static var REMOVED_FROM_RELATION:String = "removed_from_relation";
73 public static var SUSPEND_REDRAW:String = "suspend_redraw";
74 public static var RESUME_REDRAW:String = "resume_redraw";
76 // store the data we download
77 private var negativeID:Number = -1;
78 private var nodes:Object = {};
79 private var ways:Object = {};
80 private var relations:Object = {};
81 private var pois:Array = [];
82 private var changeset:Changeset = null;
84 protected function get nextNegative():Number {
88 protected function setNode(node:Node,queue:Boolean):void {
89 nodes[node.id] = node;
90 if (node.loaded) { sendEvent(new EntityEvent(NEW_NODE, node),queue); }
93 protected function setWay(way:Way,queue:Boolean):void {
95 if (way.loaded) { sendEvent(new EntityEvent(NEW_WAY, way),queue); }
98 protected function setRelation(relation:Relation,queue:Boolean):void {
99 relations[relation.id] = relation;
100 if (relation.loaded) { sendEvent(new EntityEvent(NEW_RELATION, relation),queue); }
103 protected function renumberNode(oldID:Number, node:Node):void {
104 nodes[node.id] = node;
108 protected function renumberWay(oldID:Number, way:Way):void {
113 protected function renumberRelation(oldID:Number, relation:Relation):void {
114 relations[relation.id] = relation;
115 delete relations[oldID];
119 public function sendEvent(e:*,queue:Boolean):void {
120 // queue is only used for AMFConnection
124 public function registerPOI(node:Node):void {
125 if ( pois.indexOf(node) < 0 ) {
127 sendEvent(new EntityEvent(NEW_POI, node),false);
131 protected function unregisterPOI(node:Node):void {
132 var index:uint = pois.indexOf(node);
134 pois.splice(index,1);
138 protected function setActiveChangeset(changeset:Changeset):void {
139 this.changeset = changeset;
140 sendEvent(new EntityEvent(NEW_CHANGESET, changeset),false);
143 public function getNode(id:Number):Node {
147 public function getWay(id:Number):Way {
151 public function getRelation(id:Number):Relation {
152 return relations[id];
155 public function createNode(tags:Object, lat:Number, lon:Number):Node {
156 var node:Node = new Node(nextNegative, 0, tags, true, lat, lon);
161 public function createWay(tags:Object, nodes:Array):Way {
162 var way:Way = new Way(nextNegative, 0, tags, true, nodes.concat());
167 public function createRelation(tags:Object, members:Array):Relation {
168 var relation:Relation = new Relation(nextNegative, 0, tags, true, members.concat());
169 setRelation(relation,false);
173 public function getAllNodeIDs():Array {
175 for each (var node:Node in nodes)
180 public function getAllWayIDs():Array {
182 for each (var way:Way in ways)
187 public function getAllRelationIDs():Array {
189 for each (var relation:Relation in relations)
190 list.push(relation.id);
194 public function getActiveChangeset():Changeset {
198 // these are functions that the Connection implementation is expected to
199 // provide. This class has some generic helpers for the implementation.
200 public function loadBbox(left:Number, right:Number,
201 top:Number, bottom:Number):void {
204 public function setAppID(id:Object):void {}
205 public function setAuthToken(id:Object):void {}
206 public function createChangeset(tags:Object):void {}
207 public function uploadChanges():void {}