net/systemeD/potlatch2/mapfeatures/editors/RelationMemberEditor.as

   1 package net.systemeD.potlatch2.mapfeatures.editors {
   2
   3     import net.systemeD.halcyon.connection.*;
   4     import net.systemeD.potlatch2.mapfeatures.*;
   5     import mx.containers.VBox;
   6     import flash.events.*;
   7
   8         public class RelationMemberEditor extends VBox {
   9
  10       protected var _factory:RelationMemberEditorFactory;
  11       protected var _entity:Entity;
  12
  13       [Bindable(event="factory_set")]
  14       public function get fieldName():String {
  15           return _factory == null ? "" : _factory.name;
  16       }
  17
  18       [Bindable(event="factory_set")]
  19       public function get fieldDescription():String {
  20           return _factory == null ? "" : _factory.description;
  21       }
  22
  23       [Bindable(event="relations_changed")]
  24       public function get matchedRelations():Array {
  25           if (_entity == null)
  26               return [];
  27
  28           var relationTags:Object = _factory.relationTags;
  29           var matched:Array = [];
  30           for each(var relation:Relation in _entity.parentRelations) {
  31               var addable:Boolean = true;
  32               for ( var k:String in relationTags ) {
  33                   var relVal:String = relation.getTag(k);
  34                   if ( relVal != relationTags[k] )
  35                       addable = false;
  36               }
  37               if (addable) {
  38                   for each( var memberIndex:int in relation.findEntityMemberIndexes(_entity)) {
  39                       var props:Object = {};
  40                       props["relation"] = relation;
  41                       props["id"] = relation.id;
  42                       props["index"] = memberIndex;
  43                       props["role"] = relation.getMember(memberIndex).role;
  44                       props["entity"] = _entity;
  45                       matched.push(props);
  46                   }
  47               }
  48           }
  49           return matched;
  50       }
  51
  52       public function addMember(relation:Relation, role:String):void {
  53           if (_entity != null && !_entity.hasParent(relation))
  54               relation.appendMember(new RelationMember(_entity, role));
  55       }
  56
  57       public function set factory(factory:RelationMemberEditorFactory):void {
  58           _factory = factory;
  59           dispatchEvent(new Event("factory_set"));
  60       }
  61
  62       public function set entity(entity:Entity):void {
  63           _entity = entity;
  64
  65           entity.addEventListener(Connection.ADDED_TO_RELATION, relationsChanged);
  66           entity.addEventListener(Connection.REMOVED_FROM_RELATION, relationsChanged);
  67           dispatchEvent(new Event("relations_changed"));
  68       }
  69
  70       protected function relationsChanged(event:Event):void {
  71           dispatchEvent(new Event("relations_changed"));
  72       }
  73
  74     }
  75
  76 }
  77
  78