net/systemeD/potlatch2/TagViewer.mxml

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <mx:VBox
   3         xmlns:mx="http://www.adobe.com/2006/mxml"
   4         xmlns:flexlib="flexlib.containers.*"
   5     backgroundColor="white"
   6     initialize="loadFeatures()">
   7
   8 <mx:ViewStack id="sidebar" width="100%" height="100%" creationPolicy="all">
   9   <mx:VBox id="dndPanel" width="100%" height="100%">
  10     <!-- FIXME the panel text is repeated below for mouseOut -->
  11     <mx:Text id="dndPanelText" text="Drag and Drop Points of Interest" />
  12     <mx:TileList id="poiGrid" dataProvider="{MapFeatures.getInstance().pois}" width="100%" height="100%">
  13       <mx:itemRenderer>
  14         <mx:Component>
  15           <mx:VBox mouseOver="parentDocument.dndPanelText.text = data.name"
  16                    mouseOut="parentDocument.dndPanelText.text = 'Drag and Drop Points of Interest'">
  17             <mx:Script><![CDATA[
  18               import mx.events.DragEvent;
  19               import mx.managers.DragManager;
  20               import mx.core.DragSource;
  21
  22               private function dragPOI(event:MouseEvent, tags:Array):void {
  23                   // Get the drag initiator component from the event object.
  24                   var dragInitiator:Image = event.currentTarget as Image;
  25                   var dragSource:DragSource = new DragSource();
  26                   dragSource.addData(tags, 'tags');
  27
  28                   var dragProxy:Image = new Image();
  29                   dragProxy.source = dragInitiator.source;
  30                   dragProxy.width = dragInitiator.width;   // must set width and height explicitly
  31                   dragProxy.height = dragInitiator.height; // for non-embedded images
  32                   DragManager.doDrag(dragInitiator, dragSource, event, dragProxy);
  33               }
  34             ]]></mx:Script>
  35             <mx:Image id="foo" source="{data.image}" height="25" width="25" mouseMove="dragPOI(event, data.tags)" toolTip="{data.name}" />
  36           </mx:VBox>
  37         </mx:Component>
  38       </mx:itemRenderer>
  39     </mx:TileList>
  40   </mx:VBox>
  41
  42   <mx:VBox id="tagsPanel" width="100%" height="100%" creationPolicy="auto">
  43     <mx:ViewStack id="stack" width="100%" height="100%">
  44       <mx:VBox width="100%" height="100%" label="Simple" id="editorContainer" creationComplete="initEditorStackUIs()">
  45         <mx:HBox borderStyle="inset" verticalAlign="middle" width="100%" paddingLeft="3" id="iconContainer">
  46             <mx:Image id="iconImage"/>
  47             <mx:VBox width="100%" verticalGap="1">
  48               <mx:PopUpButton id="popupChange" creationComplete="initFeatureBox()" openAlways="true" width="100%"/>
  49               <mx:Text condenseWhite="true" width="100%" id="iconText"/>
  50             </mx:VBox>
  51             <mx:LinkButton label="?" click="openDescription()" id="helpLabel"/>
  52         </mx:HBox>
  53       </mx:VBox>
  54       <mx:VBox width="100%" height="100%" label="Advanced" initialize="checkAdvanced()" verticalGap="1">
  55         <mx:Label id="advancedID">
  56           <mx:htmlText><![CDATA[<i>No Selection</i>]]></mx:htmlText>
  57         </mx:Label>
  58
  59         <mx:DataGrid editable="true" width="100%" height="75%" id="advancedTagGrid">
  60                 <mx:columns>
  61                     <mx:DataGridColumn editable="true" dataField="key" headerText="Key"/>
  62                     <mx:DataGridColumn editable="true" dataField="value" headerText="Value"/>
  63                 </mx:columns>
  64         </mx:DataGrid>
  65
  66         <mx:HBox horizontalAlign="right" width="100%">
  67           <mx:LinkButton label="Delete" click="removeTag()" enabled="{advancedTagGrid.selectedItem != null? true : false}"/>
  68           <mx:LinkButton label="Add" click="addNewTag()"/>
  69         </mx:HBox>
  70
  71         <mx:DataGrid editable="true" width="100%" height="25%" id="relationsGrid"
  72             doubleClickEnabled="true"
  73             itemDoubleClick="editRelation(relationsGrid.selectedItem.id)">
  74             <mx:columns>
  75                 <mx:DataGridColumn editable="false" dataField="description" headerText="Relation"/>
  76                 <mx:DataGridColumn editable="false" dataField="id_idx" headerText="ID"/>
  77                 <mx:DataGridColumn editable="true" dataField="role" headerText="Role"/>
  78             </mx:columns>
  79         </mx:DataGrid>
  80
  81         <mx:HBox horizontalAlign="right" width="100%">
  82           <mx:LinkButton label="Remove from" click="removeFromRelation(relationsGrid.selectedItem.id, relationsGrid.selectedItem.index)"
  83                           enabled="{relationsGrid.selectedItem != null? true : false}"/>
  84           <mx:LinkButton label="Add to" click="addToRelation()"/>
  85         </mx:HBox>
  86
  87       </mx:VBox>
  88
  89       <mx:VBox width="100%" height="100%" label="Members" id="membersVBox" initialize="checkMembers()" verticalGap="1">
  90         <mx:Label id="membersText" text="Relation Members"/>
  91         <mx:DataGrid editable="true" width="100%" height="100%" id="membersGrid"
  92                       dragEnabled="true" dragMoveEnabled="true" dropEnabled="true">
  93           <mx:columns>
  94             <mx:DataGridColumn editable="false" dataField="type" headerText="Type"/>
  95             <mx:DataGridColumn editable="false" dataField="id" headerText="ID"/>
  96             <mx:DataGridColumn editable="true" dataField="role" headerText="Role"/>
  97           </mx:columns>
  98         </mx:DataGrid>
  99       </mx:VBox>
 100
 101       </mx:ViewStack>
 102
 103           <mx:HBox width="100%">
 104                 <mx:LinkBar dataProvider="{stack}"/>
 105                 <mx:Spacer width="100%"/>
 106                 <mx:LinkButton
 107                         icon="@Embed('../../../embedded/view_tabbed.png')"
 108                         disabledIcon="@Embed('../../../embedded/view_tabbed_disabled.png')"
 109                         click="setEditorStackUI(true)" id="tabNavigatorLabel" paddingTop="6"
 110                         enabled="{editorStack is Accordion &amp;&amp; stack.selectedIndex==0}" />
 111                 <mx:LinkButton
 112                         icon="@Embed('../../../embedded/view_accordion.png')"
 113                         disabledIcon="@Embed('../../../embedded/view_accordion_disabled.png')"
 114                         click="setEditorStackUI(false)" id="accordionLabel" paddingTop="6"
 115                         enabled="{editorStack is SuperTabNavigator &amp;&amp; stack.selectedIndex==0}" />
 116           </mx:HBox>
 117   </mx:VBox>
 118 </mx:ViewStack>
 119
 120   <mx:Script><![CDATA[
 121       import net.systemeD.halcyon.connection.*;
 122       import net.systemeD.potlatch2.mapfeatures.*;
 123
 124       import mx.collections.*;
 125       import mx.containers.*;
 126       import mx.events.*;
 127       import mx.core.*;
 128       import mx.managers.PopUpManager;
 129       import flash.geom.Point;
 130       import flash.net.*;
 131       import mx.events.DragEvent;
 132       import mx.managers.DragManager;
 133       import mx.core.DragSource;
 134       import flexlib.containers.SuperTabNavigator;
 135
 136       private var editorStackTabNavigator:SuperTabNavigator;
 137       private var editorStackAccordion:Accordion;
 138       [Bindable] private var editorStack:Container;
 139
 140       private var mapFeatures:MapFeatures;
 141       private var selectedEntity:Entity;
 142       private var tagDataProvider:ArrayCollection;
 143       private var tw:CategorySelector = null;
 144       private var feature:Feature = null;
 145
 146       public function setEntity(entity:Entity):void {
 147           UIComponent.suspendBackgroundProcessing();
 148           if ( selectedEntity != entity ) {
 149               if ( selectedEntity != null )
 150                   selectedEntity.removeEventListener(Connection.TAG_CHANGED, tagChanged);
 151               selectedEntity = entity;
 152               if ( selectedEntity != null )
 153                   selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged);
 154           }
 155
 156           if ( advancedID != null )
 157               setupAdvanced(entity);
 158           if (entity is Relation) {
 159               stack.addChild(membersVBox);
 160           }
 161           refreshFeatureIcon();
 162           if (selectedEntity == null) {
 163             sidebar.selectedChild = dndPanel;
 164           } else {
 165             initialiseEditors();
 166             sidebar.selectedChild = tagsPanel;
 167           }
 168           UIComponent.resumeBackgroundProcessing();
 169       }
 170
 171       private function refreshFeatureIcon():void {
 172           var oldFeature:Feature = feature;
 173           feature = selectedEntity == null ? null : mapFeatures.findMatchingFeature(selectedEntity);
 174           if ( feature != oldFeature ) {
 175               if ( oldFeature != null )
 176                   oldFeature.removeEventListener("imageChanged", featureImageChanged);
 177               if ( feature != null )
 178                   feature.addEventListener("imageChanged", featureImageChanged);
 179           }
 180
 181           if ( feature != null ) {
 182               setFeatureIcon(selectedEntity, feature);
 183           } else {
 184               blankFeatureIcon(selectedEntity);
 185           }
 186       }
 187
 188       private function featureImageChanged(event:Event):void {
 189           setFeatureIcon(selectedEntity, feature);
 190       }
 191
 192       private function setFeatureIcon(entity:Entity, feature:Feature):void {
 193           //blankFeatureIcon(entity);
 194
 195           iconImage.source = feature.image;
 196
 197           var txt:String = feature.htmlDetails(entity);
 198           iconText.htmlText = txt;
 199           popupChange.label = feature.name;
 200           setLimitTypes(entity);
 201           tw.setSelectedFeature(feature);
 202           helpLabel.visible = feature.hasHelpURL();
 203       }
 204
 205       private function setLimitTypes(entity:Entity):void {
 206           var type:String = null;
 207           if ( entity is Node )
 208               type = "point";
 209           else if ( entity is Way )
 210               type = Way(entity).isArea() ? "area" : "line";
 211           else if ( entity is Relation )
 212               type = "relation";
 213           tw.setLimitTypes(type);
 214       }
 215
 216       private function blankFeatureIcon(entity:Entity):void {
 217           iconImage.source = null;
 218           popupChange.label = "unknown";
 219           setLimitTypes(entity);
 220                   if (entity == null) {
 221                         iconText.htmlText = "<i>Nothing selected</i>";
 222             tw.setNoSelectedFeature();
 223                   } else if (entity.hasTags()) {
 224                         iconText.htmlText = "<b>Not recognised</b><br/>Try looking at the tags under the advanced properties";
 225             tw.setSelectedFeature(null);
 226                   } else {
 227                         iconText.htmlText = "<b>No tags set</b><br/>Use the menu above to say what this "+entity.getType()+" is";
 228             tw.setSelectedFeature(null);
 229           }
 230           helpLabel.visible = false;
 231       }
 232
 233       private var tabComponents:Object = {};
 234
 235       private function initialiseEditors():void {
 236           editorStack.removeAllChildren();
 237           if ( selectedEntity == null || feature == null )
 238               return;
 239
 240           var editorBox:VBox = createEditorBox();
 241           editorBox.label = "Basic";
 242           editorStack.addChild(editorBox);
 243
 244           var tabs:Object = {};
 245           tabComponents = {};
 246
 247           for each (var factory:EditorFactory in feature.editors) {
 248               if ( factory.presence.isEditorPresent(factory, selectedEntity, null) ) {
 249                   var editor:DisplayObject = factory.createEditorInstance(selectedEntity);
 250                   if ( editor != null )
 251                       editorBox.addChild(editor);
 252               }
 253               var category:String = factory.category;
 254               var tab:VBox = tabs[category];
 255               if ( tab == null ) {
 256                   tab = createEditorBox();
 257                   tab.label = category;
 258                   editorStack.addChild(tab);
 259                   tabs[category] = tab;
 260                   tabComponents[tab] = [];
 261               }
 262               var catEditor:DisplayObject = factory.createEditorInstance(selectedEntity);
 263               if ( catEditor != null )
 264                   tabComponents[tab].push(catEditor);
 265               //    tab.addChild(catEditor);
 266           }
 267       }
 268
 269       private function createEditorBox():VBox {
 270           var box:VBox = new VBox();
 271           box.percentWidth = 100;
 272           box.percentHeight = 100;
 273           return box;
 274       }
 275
 276       private function ensureEditorsPopulated(tab:VBox):void {
 277           var components:Array = tabComponents[tab];
 278           if ( components == null || tab == null || tab.numChildren >= components.length )
 279               return;
 280           for each (var component:DisplayObject in components ) {
 281               tab.addChild(component);
 282           }
 283       }
 284
 285         private function initEditorStackUIs():void {
 286                 editorStackTabNavigator = new SuperTabNavigator();
 287                 editorStackTabNavigator.allowTabSqueezing=false;
 288                 editorStackTabNavigator.minTabWidth=10;
 289                 editorStackTabNavigator.closePolicy="close_never";
 290                 editorStackTabNavigator.scrollSpeed=20;
 291                 editorStackTabNavigator.creationPolicy="auto";
 292                 editorStackTabNavigator.percentWidth=100;
 293                 editorStackTabNavigator.percentHeight=100;
 294
 295                 editorStackAccordion = new Accordion();
 296                 editorStackAccordion.percentWidth=100;
 297                 editorStackAccordion.percentHeight=100;
 298                 editorStackAccordion.creationPolicy="auto";
 299
 300                 setEditorStackUI(true);
 301         }
 302
 303         private function setEditorStackUI(isTabbed:Boolean):void {
 304                 var children:Array=[]; var i:uint;
 305
 306                 if (editorStack) {
 307                         // blank existing component
 308                         editorStack.removeEventListener("change",editorStackUIChange);
 309                         editorStack.removeEventListener("updateComplete",editorStackUIUpdate);
 310                         editorStack.removeAllChildren();
 311                         editorContainer.removeChildAt(1);
 312                 }
 313
 314                 // replace with new component
 315                 editorStack = (isTabbed ? editorStackTabNavigator : editorStackAccordion) as Container;
 316                 editorContainer.addChild(editorStack);
 317
 318                 // re-add children and listeners
 319                 initialiseEditors();
 320                 editorStack.addEventListener("change",editorStackUIChange);
 321                 editorStack.addEventListener("updateComplete",editorStackUIUpdate);
 322         }
 323
 324         private function editorStackUIChange(event:Event):void {
 325                 ensureEditorsPopulated(IndexChangedEvent(event).relatedObject as VBox);
 326         }
 327
 328         private function editorStackUIUpdate(event:Event):void {
 329                 if (editorStack is SuperTabNavigator) {
 330                         var e:SuperTabNavigator = editorStack as SuperTabNavigator;
 331                         if (e.selectedIndex<0) { return; }
 332                         for (var i:uint=0; i<e.numChildren; i++) {
 333                                 e.getTabAt(i).selected=(i==e.selectedIndex);
 334                         }
 335                 }
 336         }
 337
 338
 339       private function checkAdvanced():void {
 340           if ( selectedEntity != null )
 341              setupAdvanced(selectedEntity);
 342       }
 343
 344       private var listeningToRelations:Array = [];
 345
 346       private function setupAdvanced(entity:Entity):void {
 347           if ( tagDataProvider == null ) {
 348               tagDataProvider = new ArrayCollection();
 349               advancedTagGrid.dataProvider = tagDataProvider;
 350           }
 351
 352           tagDataProvider.removeAll();
 353
 354           if ( entity == null ) {
 355               advancedID.htmlText = "";
 356           } else {
 357               var entityText:String = "xx";
 358               if ( entity is Node ) entityText = "Node";
 359               else if ( entity is Way ) entityText = "Way";
 360               else if ( entity is Relation ) entityText = "Relation";
 361               advancedID.htmlText = entityText+": <b>"+entity.id+"</b>";
 362
 363               var tags:Array = entity.getTagArray();
 364               tags.sortOn("key");
 365               for each(var tag:Tag in tags)
 366                   tagDataProvider.addItem(tag);
 367           }
 368
 369           removeRelationListeners();
 370           if ( selectedEntity != null ) {
 371               selectedEntity.removeEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 372               selectedEntity.removeEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 373           }
 374
 375           if ( entity == null ) {
 376               relationsGrid.dataProvider = null;
 377           } else {
 378               resetRelationsGrid(entity);
 379               entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 380               entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 381           }
 382       }
 383
 384       private function addedToRelation(event:RelationMemberEvent):void {
 385          resetRelationsGrid(selectedEntity);
 386       }
 387
 388       private function removedFromRelation(event:RelationMemberEvent):void {
 389          resetRelationsGrid(selectedEntity);
 390       }
 391
 392       private function removeRelationListeners():void {
 393           for each( var rel:Relation in listeningToRelations ) {
 394               rel.removeEventListener(Connection.TAG_CHANGED, relationTagChanged);
 395               rel.removeEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 396               rel.removeEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 397           }
 398           listeningToRelations = [];
 399           relationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 400       }
 401
 402       private function resetRelationsGrid(entity:Entity):void {
 403           removeRelationListeners();
 404           var relations:Array = [];
 405           for each( var rel:Relation in entity.parentRelations ) {
 406               for each( var memberIndex:int in rel.findEntityMemberIndexes(entity)) {
 407                   var props:Object = {};
 408                   props["relation"] = rel;
 409                   props["id"] = rel.id;
 410                   props["index"] = memberIndex;
 411                   props["role"] = rel.getMember(memberIndex).role;
 412                   props["description"] = rel.getDescription();
 413                   props["id_idx"] = rel.id + "/"+memberIndex;
 414
 415                   relations.push(props);
 416               }
 417
 418               rel.addEventListener(Connection.TAG_CHANGED, relationTagChanged);
 419               rel.addEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 420               rel.addEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 421               listeningToRelations.push(rel);
 422           }
 423           relationsGrid.dataProvider = relations;
 424           relationsGrid.addEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged, false, -100);
 425       }
 426
 427       private function relationRoleChanged(event:DataGridEvent):void {
 428                 if (event.dataField != 'role') { return; }      // shouldn't really happen
 429
 430                 var relations:Array=event.currentTarget.dataProvider.toArray();
 431                 var props:Object=relations[event.rowIndex];
 432
 433                 var relation:Relation=props['relation'];
 434                 var index:uint=props['index'];
 435                 var newRole:String=event.itemRenderer.data['role'];
 436
 437                 relation.setMember(index, new RelationMember(selectedEntity,newRole));
 438       }
 439
 440       private function relationTagChanged(event:TagEvent):void {
 441           resetRelationsGrid(selectedEntity);
 442       }
 443
 444       private function entityRelationMemberChanged(event:RelationMemberEvent):void {
 445           resetRelationsGrid(selectedEntity);
 446       }
 447
 448       private function checkMembers():void {
 449           if (selectedEntity is Relation) {
 450             setupMembers(selectedEntity as Relation);
 451           }
 452       }
 453
 454       private function setupMembers(rel:Relation):void {
 455           var members:Array = [];
 456           for (var i:int=0 ; i<rel.length; i++) {
 457             var props:Object = {};
 458             var member:RelationMember = rel.getMember(i);
 459             props["id"] = member.entity.id;
 460             props["type"] = member.entity.getType();
 461             props["role"] = member.role;
 462
 463             members.push(props);
 464           }
 465           membersGrid.dataProvider = members;
 466           membersGrid.dataProvider.addEventListener('collectionChange', membersChange);
 467       }
 468
 469       private function membersChange(event:Event):void {
 470           // Dropping all the members and re-adding them isn't exactly optimal
 471           // but is at least robust for any kind of change.
 472           // Figuring out a better way is someone else's FIXME
 473
 474           var conn:Connection = Connection.getConnectionInstance();
 475           var rel:Relation = selectedEntity as Relation
 476
 477           // drop members
 478           trace("Dropping "+rel.length+" members");
 479           for (var i:int=rel.length-1 ; i>=0; i--) {
 480             rel.removeMemberByIndex(i);
 481           }
 482
 483           // add members in new order
 484           for each(var memberObject:Object in membersGrid.dataProvider) {
 485             var e:Entity;
 486             var id:Number = memberObject.id;
 487             if(memberObject.type == 'node') {
 488               e = conn.getNode(id);
 489             } else if (memberObject.type == 'way') {
 490               e = conn.getWay(id);
 491             } else if (memberObject.type == 'relation') {
 492               e = conn.getRelation(id);
 493             }
 494             rel.appendMember(new RelationMember(e, memberObject.role));
 495             trace("added member "+memberObject.type+" "+id+" in role "+memberObject.role);
 496           }
 497           trace("complete: relation "+rel.id+" now has "+rel.length+" members");
 498       }
 499
 500       private function editRelation(id:Number):void {
 501           var panel:RelationEditorPanel = RelationEditorPanel(
 502               PopUpManager.createPopUp(Application(Application.application), RelationEditorPanel, true));
 503           panel.setRelation(Connection.getConnectionInstance().getRelation(id));
 504           PopUpManager.centerPopUp(panel);
 505       }
 506
 507       private function tagChanged(event:TagEvent):void {
 508           refreshFeatureIcon();
 509
 510           if ( tagDataProvider != null ) {
 511               // check to see if the key is already in our list
 512               var exists:Boolean = false;
 513               var tag:Tag = null;
 514               var i:uint;
 515               for ( i = 0; i < tagDataProvider.length && !exists; i++ ) {
 516                   tag = Tag(tagDataProvider.getItemAt(i));
 517                   exists = tag.key == event.key;
 518               }
 519               if ( !exists ) {
 520                   tag = new Tag(selectedEntity, event.key, event.newValue);
 521                   tagDataProvider.addItem(tag);
 522                   tagDataProvider.refresh();
 523               } else {
 524                   if ( event.newValue == null ) {
 525                       tagDataProvider.removeItemAt(i-1);
 526                       tagDataProvider.refresh();
 527                   } else {
 528                       tagDataProvider.itemUpdated(tag, "value");
 529                   }
 530               }
 531           }
 532       }
 533
 534       public function loadFeatures():void {
 535           mapFeatures = MapFeatures.getInstance();
 536           stack.removeChild(membersVBox); // remove by default, will be added if relation
 537       }
 538
 539       public function openDescription():void {
 540           trace("open description here");
 541           if ( feature != null && feature.hasHelpURL() )
 542               navigateToURL(new URLRequest(feature.helpURL), "potlatch_help");
 543       }
 544
 545       public function addNewTag():void {
 546           var newKey:String = "(new tag)";
 547           var newTag:Tag = new Tag(selectedEntity, newKey, "(new value)");
 548           tagDataProvider.addItem(newTag);
 549           advancedTagGrid.editedItemPosition = {rowIndex: tagDataProvider.getItemIndex(newTag), columnIndex: 0};
 550       }
 551
 552       public function removeTag():void {
 553           var k:String = advancedTagGrid.selectedItem.key;
 554           selectedEntity.setTag(k, null, MainUndoStack.getGlobalStack().addAction);
 555       }
 556
 557       public function addToRelation():void {
 558           new RelationSelectPanel().init(selectedEntity,new Object());
 559       }
 560
 561       public function removeFromRelation(id:Number, index:int):void {
 562           Connection.getConnectionInstance().getRelation(id).removeMemberByIndex(index);
 563       }
 564
 565       public function initFeatureBox():void {
 566           tw = new CategorySelector();
 567           tw.addEventListener("selectedType", changeFeatureType);
 568           popupChange.popUp = tw;
 569       }
 570
 571       public function changeFeatureType(event:Event):void {
 572           if ( selectedEntity == null )
 573               return;
 574
 575           UIComponent.suspendBackgroundProcessing();
 576           var newFeature:Feature = tw.selectedType;
 577           var undoStack:Function = MainUndoStack.getGlobalStack().addAction;
 578           var action:CompositeUndoableAction = new CompositeUndoableAction(
 579                   "Set "+selectedEntity.getType()+" "+selectedEntity.id+" to "+newFeature.name);
 580                   selectedEntity.suspend();
 581
 582           // remove tags from the current feature
 583           if ( feature != null ) {
 584               for each( var oldtag:Object in feature.tags ) {
 585                   selectedEntity.setTag(oldtag["k"], null, action.push);
 586               }
 587           }
 588
 589           // set tags for new feature
 590           if ( newFeature != null ) {
 591               for each( var newtag:Object in newFeature.tags ) {
 592                   selectedEntity.setTag(newtag["k"], newtag["v"], action.push);
 593               }
 594           }
 595
 596                   selectedEntity.resume();
 597           undoStack(action);
 598           popupChange.close();
 599           initialiseEditors();
 600           UIComponent.resumeBackgroundProcessing();
 601       }
 602
 603       private function dragPOI(event:MouseEvent, tags:Array):void {
 604           // Get the drag initiator component from the event object.
 605           var dragInitiator:Image = event.currentTarget as Image;
 606           var dragSource:DragSource = new DragSource();
 607           dragSource.addData(tags, 'tags');
 608
 609           var dragProxy:Image = new Image();
 610           dragProxy.source = event.currentTarget.source;
 611
 612           DragManager.doDrag(dragInitiator, dragSource, event, dragProxy);
 613       }
 614   ]]></mx:Script>
 615 </mx:VBox>
 616