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         xmlns:controls="net.systemeD.controls.*"
   6         xmlns:potlatch2="net.systemeD.potlatch2.*"
   7     xmlns:sidepanel="net.systemeD.potlatch2.panels.*"
   8         horizontalScrollPolicy="off"
   9     backgroundColor="white"
  10     initialize="loadFeatures()">
  11
  12 <mx:ViewStack id="sidebar" width="100%" height="100%" creationPolicy="all">
  13
  14   <!-- Drag & drop icon panel -->
  15
  16   <mx:VBox id="dndPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
  17     <mx:Text id="dndPanelText" text="{dndPrompt}" width="100%" styleName="helpInfo" />
  18         <mx:Repeater id="dndRep" dataProvider="{MapFeatures.getInstance().getCategoriesForType('point')}" styleName="dndRepeater">
  19                 <mx:HBox width="100%" styleName="dndPanelCategory">
  20                         <mx:Label text="{dndRep.currentItem.name}:" styleName="dndPanelCategoryLabel"/>
  21                 </mx:HBox>
  22
  23                 <mx:TileList dataProvider="{dndRep.currentItem.getFeaturesForType('point', true)}" width="100%" height="1"
  24                                      rowHeight="32" columnWidth="32" updateComplete="resizePOIGrid(event)" styleName="dndPanelTileList">
  25                         <mx:itemRenderer>
  26                                 <mx:Component>
  27                                         <mx:VBox toolTip="{data.name}">
  28                                                 <mx:Script><![CDATA[
  29                                                         import mx.events.DragEvent;
  30                                                         import mx.managers.DragManager;
  31                                                         import mx.core.DragSource;
  32
  33                                                         private function dragPOI(event:MouseEvent, tags:Array):void {
  34                                                                 // Get the drag initiator component from the event object.
  35                                                                 var dragInitiator:Image = event.currentTarget as Image;
  36                                                                 var dragSource:DragSource = new DragSource();
  37                                                                 dragSource.addData(tags, 'tags');
  38                                                                 dragSource.addData(event.target.parent.parent.parent.parent, 'container');
  39
  40                                                                 var dragProxy:Image = new Image();
  41                                                                 dragProxy.source = dragInitiator.source;
  42                                                                 dragProxy.width = dragInitiator.width;   // must set width and height explicitly
  43                                                                 dragProxy.height = dragInitiator.height; // for non-embedded images
  44                                                                 DragManager.doDrag(dragInitiator, dragSource, event, dragProxy);
  45                                                         }
  46                                                 ]]></mx:Script>
  47                                                 <mx:Image id="foo" source="{data.dndimage}" height="24" width="24" mouseMove="dragPOI(event, data.tags)" toolTip="{data.name}" />
  48                                         </mx:VBox>
  49                                 </mx:Component>
  50                         </mx:itemRenderer>
  51                 </mx:TileList>
  52         </mx:Repeater>
  53   </mx:VBox>
  54
  55   <!-- Standard tagging panel -->
  56
  57   <mx:VBox id="tagsPanel" width="100%" height="100%" creationPolicy="auto">
  58     <mx:ViewStack id="stack" width="100%" height="100%">
  59       <mx:VBox width="100%" height="100%" label="Simple" id="editorContainer" creationComplete="initEditorStackUIs()" styleName="dndPanelVbox">
  60         <mx:VBox width="100%" verticalGap="1" styleName="dndTagHeader">
  61           <mx:HBox width="100%" id="iconContainer" styleName="featureSelector">
  62             <mx:Image id="iconImage"/>
  63             <mx:Text condenseWhite="true" width="100%" id="iconText" styleName="dndIconText"/>
  64           </mx:HBox>
  65           <mx:HBox width="100%">
  66             <mx:PopUpButton id="popupChange" openAlways="true" width="100%" styleName="dndTagPopUpMenu" closeDuration="0" />
  67             <mx:LinkButton icon="@Embed('../../../embedded/information.svg')" click="openDescription()" id="helpLabel" styleName="helpInfo"/>
  68           </mx:HBox>
  69         </mx:VBox>
  70       </mx:VBox>
  71       <mx:VBox width="100%" height="100%" label="Advanced" id="advancedContainer" initialize="checkAdvanced()" verticalGap="1">
  72         <mx:Label id="advancedID" click="openEntityPage()">
  73           <mx:htmlText><![CDATA[<i>No Selection</i>]]></mx:htmlText>
  74         </mx:Label>
  75
  76                 <potlatch2:TagGrid id="advancedTagGrid" width="100%" height="75%" />
  77
  78         <mx:HBox horizontalAlign="right" width="100%">
  79           <mx:LinkButton label="Delete" click="advancedTagGrid.removeTag()" id="advancedDeleteButton" enabled="{advancedTagGrid.selectedItem != null? true : false}"/>
  80           <mx:LinkButton label="Add" click="advancedTagGrid.addNewTag()" id="advancedAddButton"/>
  81         </mx:HBox>
  82
  83         <mx:DataGrid editable="true" width="100%" height="25%" id="relationsGrid"
  84             doubleClickEnabled="true"
  85             itemDoubleClick="editRelation(relationsGrid.selectedItem.id)"
  86             doubleClick="if (event.target.parent==relationsGrid) { addToRelation(); }">
  87             <mx:columns>
  88                 <mx:DataGridColumn editable="false" dataField="description" headerText="Relation"/>
  89                 <mx:DataGridColumn editable="false" dataField="id_idx" headerText="ID"/>
  90                 <mx:DataGridColumn editable="true" dataField="role" headerText="Role">
  91                     <mx:itemEditor><mx:Component><mx:TextInput restrict="&#x0020;-&#x10FFFF;" /></mx:Component></mx:itemEditor>
  92                 </mx:DataGridColumn>
  93                                 <mx:DataGridColumn width="20" editable="false">
  94                                         <mx:itemRenderer>
  95                                                 <mx:Component>
  96                                     <mx:HBox horizontalAlign="center" verticalAlign="middle">
  97                                                                 <mx:PopUpButton arrowButtonWidth="12" paddingLeft="0" paddingRight="0" width="12" height="12"
  98                                                                                 open="{outerDocument.updateRelationMenu(event);}"
  99                                                                                 creationComplete="{outerDocument.createRelationMenu(PopUpButton(event.target));}"/>
 100                                                         </mx:HBox>
 101                                                 </mx:Component>
 102                                         </mx:itemRenderer>
 103                                 </mx:DataGridColumn>
 104             </mx:columns>
 105         </mx:DataGrid>
 106
 107         <mx:HBox horizontalAlign="right" width="100%">
 108           <mx:LinkButton label="Remove from" click="removeFromRelation(relationsGrid.selectedItem.id, relationsGrid.selectedItem.index)"
 109                           enabled="{relationsGrid.selectedItem != null? true : false}"/>
 110           <mx:LinkButton label="Add to" click="addToRelation()"/>
 111         </mx:HBox>
 112
 113       </mx:VBox>
 114
 115       <mx:VBox width="100%" height="100%" label="Members" id="membersVBox" initialize="checkMembers()" verticalGap="1">
 116         <mx:Label id="membersText" text="Relation Members"/>
 117         <mx:DataGrid editable="true" width="100%" height="100%" id="membersGrid"
 118                       dragEnabled="true" dragMoveEnabled="true" dropEnabled="true">
 119           <mx:columns>
 120             <mx:DataGridColumn editable="false" dataField="type" headerText="Type"/>
 121             <mx:DataGridColumn editable="false" dataField="id" headerText="ID"/>
 122             <mx:DataGridColumn editable="true" dataField="role" headerText="Role">
 123                                 <mx:itemEditor><mx:Component><mx:TextInput restrict="&#x0020;-&#x10FFFF;" /></mx:Component></mx:itemEditor>
 124                         </mx:DataGridColumn>
 125           </mx:columns>
 126         </mx:DataGrid>
 127       </mx:VBox>
 128
 129       </mx:ViewStack>
 130
 131           <mx:HBox width="100%">
 132                 <mx:LinkBar dataProvider="{stack}"/>
 133                 <mx:Spacer width="100%"/>
 134                 <mx:LinkButton
 135                         icon="@Embed('../../../embedded/view_tabbed.png')"
 136                         disabledIcon="@Embed('../../../embedded/view_tabbed_disabled.png')"
 137                         click="setEditorStackUI(true)" id="tabNavigatorLabel" paddingTop="6"
 138                         toolTip="Show in tabs"
 139                         enabled="{editorStack is Accordion &amp;&amp; stack.selectedIndex==0}" />
 140                 <mx:LinkButton
 141                         icon="@Embed('../../../embedded/view_accordion.png')"
 142                         disabledIcon="@Embed('../../../embedded/view_accordion_disabled.png')"
 143                         click="setEditorStackUI(false)" id="accordionLabel" paddingTop="6"
 144                         toolTip="Show in sliding windows"
 145                         enabled="{editorStack is SuperTabNavigator &amp;&amp; stack.selectedIndex==0}" />
 146           </mx:HBox>
 147   </mx:VBox>
 148
 149   <!-- Multiple selection -->
 150
 151   <mx:VBox id="multiplePanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 152     <potlatch2:TagGrid id="multiAdvancedTagGrid" width="100%" height="75%" />
 153         <mx:HBox horizontalAlign="right" width="100%">
 154           <mx:LinkButton label="Delete" click="multiAdvancedTagGrid.removeTag()" enabled="{multiAdvancedTagGrid.selectedItem != null? true : false}"/>
 155           <mx:LinkButton label="Add" click="multiAdvancedTagGrid.addNewTag()" />
 156         </mx:HBox>
 157
 158     <mx:DataGrid editable="true" width="100%" height="25%" id="multiRelationsGrid"
 159         doubleClickEnabled="true"
 160         itemDoubleClick="editRelation(multiRelationsGrid.selectedItem.id)"
 161         doubleClick="if (event.target.parent==multiRelationsGrid) { addToRelation(); }">
 162         <mx:columns>
 163             <mx:DataGridColumn editable="false" dataField="description" headerText="Relation"/>
 164             <mx:DataGridColumn editable="false" dataField="id_idx" headerText="ID"/>
 165             <mx:DataGridColumn editable="true" dataField="role" headerText="Role">
 166                 <mx:itemEditor><mx:Component><mx:TextInput restrict="&#x0020;-&#x10FFFF;" /></mx:Component></mx:itemEditor>
 167             </mx:DataGridColumn>
 168                         <mx:DataGridColumn width="20" editable="false">
 169                                 <mx:itemRenderer>
 170                                         <mx:Component>
 171                             <mx:HBox horizontalAlign="center" verticalAlign="middle">
 172                                                         <mx:PopUpButton arrowButtonWidth="12" paddingLeft="0" paddingRight="0" width="12" height="12"
 173                                                                         open="{outerDocument.updateRelationMenu(event);}"
 174                                                                         creationComplete="{outerDocument.createRelationMenu(PopUpButton(event.target));}"/>
 175                                                 </mx:HBox>
 176                                         </mx:Component>
 177                                 </mx:itemRenderer>
 178                         </mx:DataGridColumn>
 179         </mx:columns>
 180     </mx:DataGrid>
 181     <mx:HBox horizontalAlign="right" width="100%">
 182       <mx:LinkButton label="Remove from" click="removeFromRelation(multiRelationsGrid.selectedItem.id)"
 183                       enabled="{multiRelationsGrid.selectedItem != null? true : false}"/>
 184       <mx:LinkButton label="Add to" click="addToRelation()"/>
 185     </mx:HBox>
 186
 187   </mx:VBox>
 188
 189   <!-- Multiple selection but items cannot be edited -->
 190
 191   <mx:VBox id="multipleInvalidPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 192         <mx:Text id="multipleInvalidPanelText" text="You have selected multiple items." width="100%" styleName="helpInfo" />
 193   </mx:VBox>
 194
 195   <!-- Generic marker panel -->
 196
 197   <mx:VBox id="markerPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 198     <sidepanel:MarkerPanel id="markerPanelContents" width="100%"/>
 199   </mx:VBox>
 200
 201   <!-- Bug editing panel -->
 202
 203   <mx:VBox id="bugPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 204     <sidepanel:BugPanel id="bugPanelContents" width="100%"/>
 205   </mx:VBox>
 206
 207   <!-- Background layer selection -->
 208
 209   <mx:VBox id="backgroundPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 210     <sidepanel:BackgroundPanel id="backgroundPanelContents" width="100%"/>
 211   </mx:VBox>
 212
 213   <!-- merge tags from background layer -->
 214
 215   <mx:VBox id="backgroundMergePanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 216     <sidepanel:BackgroundMergePanel id="backgroundMergePanelContents" width="100%" />
 217   </mx:VBox>
 218
 219 </mx:ViewStack>
 220
 221   <mx:Script><![CDATA[
 222       import net.systemeD.halcyon.connection.*;
 223       import net.systemeD.halcyon.MapPaint;
 224       import net.systemeD.potlatch2.EditController;
 225       import net.systemeD.potlatch2.mapfeatures.*;
 226       import net.systemeD.potlatch2.utils.*;
 227
 228       import mx.collections.*;
 229       import mx.containers.*;
 230       import mx.events.*;
 231       import mx.core.*;
 232       import mx.managers.PopUpManager;
 233       import mx.controls.Menu;
 234       import mx.controls.Alert;
 235       import flash.geom.Point;
 236       import flash.net.*;
 237       import mx.events.DragEvent;
 238       import mx.managers.DragManager;
 239       import mx.core.DragSource;
 240       import mx.controls.TabBar;
 241       import flexlib.containers.SuperTabNavigator;
 242
 243       [Bindable]
 244       public var dndPrompt:String="Add new points by dragging them onto the map";
 245
 246       private var editorStackTabNavigator:SuperTabNavigator;
 247       private var editorStackAccordion:Accordion;
 248       [Bindable] private var editorStack:Container;
 249
 250       public var mapFeatures:MapFeatures;
 251       public var controller:EditController;
 252       private var selectedEntity:Entity;
 253       private var connection:Connection;
 254       private var currentCategorySelector:CategorySelector;
 255       private var categorySelectors:Object = {};        // hash of categorySelectors for each limitType
 256       private var feature:Feature = null;
 257
 258       private var rowData:Object;               // relation membership reference, needed so it's accessible from relation actions menu
 259
 260           public function setEntity(entities:Array, layer:MapPaint=null):void {
 261                 UIComponent.suspendBackgroundProcessing();
 262                 connection=null;
 263
 264                 var firstSelected:Entity=null;
 265                 if (entities.length==1) { firstSelected=entities[0]; }
 266
 267                 if (selectedEntity!=firstSelected && selectedEntity!=null) {
 268                         selectedEntity.removeEventListener(Connection.TAG_CHANGED, tagChanged);
 269                         selectedEntity.removeEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 270                         selectedEntity.removeEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 271                 }
 272
 273                 if (entities.length==0) {
 274                         // Nothing selected, so show drag-and-drop panel
 275                         sidebar.selectedChild = dndPanel;
 276
 277                 } else if (entities.length==1) {
 278                         // Single entity selected, so show tag panel
 279                         selectedEntity=firstSelected;
 280                         connection=firstSelected.connection;
 281                         if (selectedEntity!=null) { selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged); }
 282                         if (advancedID!=null) { setupAdvanced(firstSelected); }
 283                         if (firstSelected is Relation) { stack.addChild(membersVBox); }
 284             if (selectedEntity is Marker && connection is BugConnection) {
 285               bugPanelContents.init(selectedEntity, BugConnection(connection));
 286               sidebar.selectedChild = bugPanel;
 287             } else if (selectedEntity is Marker) {
 288               markerPanelContents.init(selectedEntity, layer);
 289               sidebar.selectedChild = markerPanel;
 290             } else if (connection is SnapshotConnection) {
 291               backgroundPanelContents.init(selectedEntity, layer);
 292               sidebar.selectedChild = backgroundPanel;
 293             } else {
 294               refreshFeatureIcon();
 295               initialiseEditors();
 296               sidebar.selectedChild = tagsPanel;
 297             }
 298
 299         } else if (entities.length==2
 300                       && xor(entities[0].connection is SnapshotConnection, entities[1].connection is SnapshotConnection)
 301                       && xor(!controller.map.getLayerForEntity(entities[0]).isBackground, !controller.map.getLayerForEntity(entities[1]).isBackground) ) {
 302             backgroundMergePanelContents.init(entities);
 303             sidebar.selectedChild = backgroundMergePanel;
 304
 305                 } else if(isMultipleEditable(entities)) {
 306                         selectedEntity = new EntityCollection(entities);
 307                         selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged);
 308             sidebar.selectedChild = multiplePanel;
 309                         setupMultiAdvanced(selectedEntity);
 310                         connection=entities[0].connection;
 311
 312                 } else {
 313                         //The selection contains elements which can't be edited all together.
 314                         sidebar.selectedChild = multipleInvalidPanel;
 315                 }
 316                 UIComponent.resumeBackgroundProcessing();
 317       }
 318
 319       private function xor(a:Boolean, b:Boolean):Boolean {
 320           return ( a || b) && !(a && b);
 321       }
 322
 323       private function refreshFeatureIcon():void {
 324           var oldFeature:Feature = feature;
 325           feature = selectedEntity == null ? null : mapFeatures.findMatchingFeature(selectedEntity);
 326           if ( feature != oldFeature ) {
 327               if ( oldFeature != null )
 328                   oldFeature.removeEventListener("imageChanged", featureImageChanged);
 329               if ( feature != null )
 330                   feature.addEventListener("imageChanged", featureImageChanged);
 331           }
 332           setCategorySelector(selectedEntity, feature);
 333       }
 334
 335       private function featureImageChanged(event:Event):void {
 336           setCategorySelector(selectedEntity, feature);
 337       }
 338
 339       /** Set the icon, categorySelector and help text for the current entity. */
 340       private function setCategorySelector(entity:Entity, feature:Feature):void {
 341                         // Remove the "user has selected something" event listener from previous categorySelector,
 342                         // and make it invisible because Flex is crap at updating click areas otherwise
 343                         if (currentCategorySelector) {
 344                                 currentCategorySelector.removeEventListener("selectedType", changeFeatureType);
 345                                 currentCategorySelector.visible=false;
 346                         }
 347
 348                         // Have we cached the categorySelector for this limitType? If not, create one
 349                         var lt:String=limitType(entity);
 350                         if (!categorySelectors[lt]) {
 351                                 categorySelectors[lt]=new CategorySelector();
 352                                 categorySelectors[lt].setLimitTypes(lt);
 353                         }
 354                         currentCategorySelector=categorySelectors[lt];
 355                         currentCategorySelector.addEventListener("selectedType", changeFeatureType, false, 0, true);
 356
 357                         // Update surrounding icon/text display
 358                         if (feature) {
 359                                 iconImage.source = feature.image;
 360                                 iconText.htmlText = feature.htmlDetails(entity);
 361                                 popupChange.label = feature.name;
 362                                 helpLabel.visible = feature.hasHelpURL();
 363                                 currentCategorySelector.setSelectedFeature(feature);
 364                         } else {
 365                                 iconImage.source = null;
 366                                 popupChange.label = "unknown";
 367                                 helpLabel.visible = false;
 368                                 if (entity==null) {
 369                                         iconText.htmlText = "<i>Nothing selected</i>";
 370                                 } else if (entity.hasTags()) {
 371                                         iconText.htmlText = "<b>Not recognised</b><br/><font size='10pt'>Try looking at the tags under the advanced properties</font>";
 372                                 } else {
 373                                         iconText.htmlText = "<b>No tags set</b><br/><font size='10pt'>Please use the menu below to define what this "+entity.getType()+" is</font>";
 374                                 }
 375                                 currentCategorySelector.setSelectedFeature(null);
 376                         }
 377
 378                         // Set it as the popup, and make sure it's visible
 379                         popupChange.popUp=currentCategorySelector;
 380                         currentCategorySelector.visible=true;
 381       }
 382
 383           private function isMultipleEditable(entities:Array):Boolean {
 384                 for each(var entity:Entity in entities) {
 385                         if(!(entity is Node || entity is Way))
 386                                 return false;
 387                 }
 388                 return true;
 389           }
 390
 391       private function limitType(entity:Entity):String {
 392           if      (entity is Node    ) return "point";
 393           else if (entity is Way     ) return Way(entity).isArea() ? "area" : "line";
 394           else if (entity is Relation) return "relation";
 395           return null;
 396       }
 397
 398       private var tabComponents:Object = {};
 399
 400       private function initialiseEditors():void {
 401           // reset tab to 0 to work around TabNavigator bug (#3444)
 402           if (editorStack is TabNavigator) {
 403               try {
 404                   var tabBar:TabBar=TabBar(TabNavigator(editorStack).getTabAt(0).parent);
 405                   tabBar.selectedIndex=0;
 406                   tabBar.validateNow();
 407               } catch(errObject:Error) {}
 408           }
 409
 410           editorStack.removeAllChildren();
 411           if ( selectedEntity == null || feature == null )
 412               return;
 413
 414           var editorBox:VBox = createEditorBox();
 415           editorBox.label = "Basic";
 416           editorStack.addChild(editorBox);
 417
 418           var tabs:Object = {};
 419           tabComponents = {};
 420
 421           for each (var factory:EditorFactory in feature.editors) {
 422               if ( factory.presence.isEditorPresent(factory, selectedEntity, null) ) {
 423                   var editor:DisplayObject = factory.createEditorInstance(selectedEntity);
 424                   if ( editor != null )
 425                       editorBox.addChild(editor);
 426               }
 427               var category:String = factory.category;
 428               if (category!='') {
 429                       var tab:VBox = tabs[category];
 430                       if ( tab == null) {
 431                           tab = createEditorBox();
 432                           tab.label = category;
 433                           editorStack.addChild(tab);
 434                           tabs[category] = tab;
 435                           tabComponents[tab] = [];
 436                       }
 437                       var catEditor:DisplayObject = factory.createEditorInstance(selectedEntity);
 438                       if ( catEditor != null )
 439                           tabComponents[tab].push(catEditor);
 440                       //    tab.addChild(catEditor);
 441               }
 442           }
 443       }
 444
 445       private function createEditorBox():VBox {
 446           var box:VBox = new VBox();
 447           box.percentWidth = 100;
 448           box.percentHeight = 100;
 449           box.styleName = "dndEditorContainer";
 450           return box;
 451       }
 452
 453       private function ensureEditorsPopulated(tab:VBox):void {
 454           var components:Array = tabComponents[tab];
 455           if ( components == null || tab == null || tab.numChildren >= components.length )
 456               return;
 457           for each (var component:DisplayObject in components ) {
 458               tab.addChild(component);
 459           }
 460       }
 461
 462         private function initEditorStackUIs():void {
 463                 editorStackTabNavigator = new SuperTabNavigator();
 464                 editorStackTabNavigator.allowTabSqueezing=false;
 465                 editorStackTabNavigator.minTabWidth=10;
 466                 editorStackTabNavigator.closePolicy="close_never";
 467                 editorStackTabNavigator.scrollSpeed=20;
 468                 editorStackTabNavigator.creationPolicy="auto";
 469                 editorStackTabNavigator.percentWidth=100;
 470                 editorStackTabNavigator.percentHeight=100;
 471                 editorStackTabNavigator.styleName="dndStackTab";
 472                 editorStackTabNavigator.popUpButtonPolicy="off"
 473
 474
 475                 editorStackAccordion = new Accordion();
 476                 editorStackAccordion.percentWidth=100;
 477                 editorStackAccordion.percentHeight=100;
 478                 editorStackAccordion.creationPolicy="auto";
 479                 editorStackAccordion.styleName="dndStackAccordion";
 480
 481                 setEditorStackUI(true);
 482         }
 483
 484         private function setEditorStackUI(isTabbed:Boolean):void {
 485                 var children:Array=[]; var i:uint;
 486
 487                 if (editorStack) {
 488                         // blank existing component
 489                         editorStack.removeEventListener("change",editorStackUIChange);
 490                         editorStack.removeEventListener("updateComplete",editorStackUIUpdate);
 491                         editorStack.removeAllChildren();
 492                         editorContainer.removeChildAt(1);
 493                 }
 494
 495                 // replace with new component
 496                 editorStack = (isTabbed ? editorStackTabNavigator : editorStackAccordion) as Container;
 497                 editorContainer.addChild(editorStack);
 498
 499                 // re-add children and listeners
 500                 initialiseEditors();
 501                 editorStack.addEventListener("change",editorStackUIChange);
 502                 editorStack.addEventListener("updateComplete",editorStackUIUpdate);
 503         }
 504
 505         private function editorStackUIChange(event:Event):void {
 506                 ensureEditorsPopulated(IndexChangedEvent(event).relatedObject as VBox);
 507         }
 508
 509         private function editorStackUIUpdate(event:Event):void {
 510                 if (editorStack is SuperTabNavigator) {
 511                         var e:SuperTabNavigator = editorStack as SuperTabNavigator;
 512                         if (e.selectedIndex<0) { return; }
 513                         for (var i:uint=0; i<e.numChildren; i++) {
 514                                 e.getTabAt(i).selected=(i==e.selectedIndex);
 515                         }
 516                 }
 517         }
 518
 519
 520         public function togglePanel():void {
 521                 if (stack.selectedChild==editorContainer && selectedEntity!=null) {
 522                         stack.selectedChild=advancedContainer;
 523                 } else if (stack.selectedChild!=editorContainer) {
 524                         stack.selectedChild=editorContainer;
 525                 }
 526         }
 527
 528         public function selectAdvancedPanel():void {
 529                 checkAdvanced();
 530                 stack.selectedChild=advancedContainer;
 531         }
 532
 533       private function checkAdvanced():void {
 534           if ( selectedEntity != null )
 535              setupAdvanced(selectedEntity);
 536       }
 537
 538       private var listeningToRelations:Array = [];
 539
 540       private function setupAdvanced(entity:Entity):void {
 541                 if (!advancedTagGrid) advancedContainer.createComponentsFromDescriptors();      // if Flex hasn't created it, force it
 542                 advancedTagGrid.init(entity);
 543
 544                 if ( entity == null ) {
 545                         advancedID.htmlText = "";
 546                 } else {
 547                         var entityText:String = "xx";
 548                         if      ( entity is Node     ) entityText = "Node";
 549                         else if ( entity is Way      ) entityText = "Way";
 550                         else if ( entity is Relation ) entityText = "Relation";
 551                         advancedID.htmlText = entityText+": <b>"+entity.id+"</b>";
 552                 }
 553
 554                 removeRelationListeners();
 555
 556                 if ( entity == null ) {
 557                         relationsGrid.dataProvider = null;
 558                 } else {
 559                         resetRelationsGrid(entity);
 560                         entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 561                         entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 562                 }
 563       }
 564
 565           private function setupMultiAdvanced(entity:Entity):void {
 566                 multiAdvancedTagGrid.init(entity);
 567                 resetRelationsGrid(entity);
 568                 entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation, false, 0, true);
 569                 entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation, false, 0, true);
 570       }
 571
 572           public function addNewTag():void {
 573                 if (stack.selectedChild!=advancedContainer) { return; }
 574                 advancedTagGrid.addNewTag();
 575           }
 576
 577       private function addedToRelation(event:RelationMemberEvent):void {
 578          resetRelationsGrid(selectedEntity);
 579       }
 580
 581       private function removedFromRelation(event:RelationMemberEvent):void {
 582          resetRelationsGrid(selectedEntity);
 583       }
 584
 585       private function removeRelationListeners():void {
 586           for each( var rel:Relation in listeningToRelations ) {
 587               rel.removeEventListener(Connection.TAG_CHANGED, relationTagChanged);
 588               rel.removeEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 589               rel.removeEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 590           }
 591           listeningToRelations = [];
 592           if (relationsGrid) relationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 593           if (multiRelationsGrid) multiRelationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 594       }
 595
 596       private function resetRelationsGrid(entity:Entity):void {
 597           removeRelationListeners();
 598
 599           var instance:DataGrid=relationsGrid;
 600           if (entity is EntityCollection) instance=multiRelationsGrid;
 601           var memberships:Array = entity.getRelationMemberships();
 602           for each (var m:Object in memberships) {
 603               m.relation.addEventListener(Connection.TAG_CHANGED, relationTagChanged);
 604               m.relation.addEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 605               m.relation.addEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 606               listeningToRelations.push(m.relation);
 607           }
 608           instance.dataProvider = memberships;
 609           instance.addEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged, false, -100);
 610       }
 611
 612       private function relationRoleChanged(event:DataGridEvent):void {
 613                 if (event.dataField != 'role') { return; }      // shouldn't really happen
 614
 615                 var relations:Array=event.currentTarget.dataProvider.toArray();
 616                 var props:Object=relations[event.rowIndex];
 617
 618                 var relation:Relation=props['relation'];
 619                 var newRole:String=event.itemRenderer.data['role'];
 620
 621                 if (selectedEntity is EntityCollection) {
 622                         for each (var entity:Entity in EntityCollection(selectedEntity).entities) {
 623                                 var indexes:Array=relation.findEntityMemberIndexes(entity);
 624                                 for each (var index:int in indexes) {
 625                                         relation.setMember(index, new RelationMember(entity,newRole), MainUndoStack.getGlobalStack().addAction);
 626                                 }
 627                         }
 628                 } else {
 629                         relation.setMember(props['index'], new RelationMember(selectedEntity,newRole), MainUndoStack.getGlobalStack().addAction);
 630                 }
 631       }
 632
 633       private function relationTagChanged(event:TagEvent):void {
 634           resetRelationsGrid(selectedEntity);
 635       }
 636
 637       private function entityRelationMemberChanged(event:RelationMemberEvent):void {
 638           resetRelationsGrid(selectedEntity);
 639       }
 640
 641       private function checkMembers():void {
 642           if (selectedEntity is Relation) {
 643             setupMembers(selectedEntity as Relation);
 644           }
 645       }
 646
 647       private function setupMembers(rel:Relation):void {
 648           var members:Array = [];
 649           for (var i:int=0 ; i<rel.length; i++) {
 650             var props:Object = {};
 651             var member:RelationMember = rel.getMember(i);
 652             props["id"] = member.entity.id;
 653             props["type"] = member.entity.getType();
 654             props["role"] = member.role;
 655
 656             members.push(props);
 657           }
 658           membersGrid.dataProvider = members;
 659           membersGrid.dataProvider.addEventListener('collectionChange', membersChange);
 660       }
 661
 662       private function membersChange(event:Event):void {
 663           // Dropping all the members and re-adding them isn't exactly optimal
 664           // but is at least robust for any kind of change.
 665           // Figuring out a better way is someone else's FIXME
 666
 667           var rel:Relation = selectedEntity as Relation;
 668           var action:CompositeUndoableAction = new CompositeUndoableAction("Rearrange relation members for "+rel);
 669
 670           // drop members
 671           for (var i:int=rel.length-1 ; i>=0; i--) {
 672             rel.removeMemberByIndex(i, action.push);
 673           }
 674
 675           // add members in new order
 676           for each(var memberObject:Object in membersGrid.dataProvider) {
 677             var e:Entity;
 678             var id:Number = memberObject.id;
 679                         switch (memberObject.type) {
 680                                 case 'node':            e = connection.getNode(id); break;
 681                 case 'way':                     e = connection.getWay(id); break;
 682                                 case 'relation':        e = connection.getRelation(id); break;
 683             }
 684             rel.appendMember(new RelationMember(e, memberObject.role), action.push);
 685           }
 686           MainUndoStack.getGlobalStack().addAction(action);
 687       }
 688
 689       private function editRelation(id:Number):void {
 690           var panel:RelationEditorPanel = RelationEditorPanel(
 691               PopUpManager.createPopUp(Application(Application.application), RelationEditorPanel, true));
 692           panel.setRelation(connection.getRelation(id));
 693           PopUpManager.centerPopUp(panel);
 694       }
 695
 696         /** Create relation actions menu */
 697
 698         public function createRelationMenu(button:PopUpButton):void {
 699                 var menu:Menu = new Menu();
 700                 var dp:Object = [ {label: "Select all members"},
 701                                                   {label: "Deselect all members"},
 702                                                   {label: "Add selection to this relation", enabled: false},
 703                                                   {label: "Delete relation"} ];
 704                 menu.dataProvider = dp;
 705                 menu.addEventListener("itemClick", selectRelationMenu);
 706                 button.popUp = menu;
 707         }
 708
 709         /** Enable 'add selection to...' entry only if some of the selection isn't in the relation.
 710             Called each time the menu is clicked. */
 711
 712         public function updateRelationMenu(event:Event):void {
 713                 rowData=event.target.parent.data;       // this makes it accessible from selectRelationMenu
 714                 var menu:Menu = Menu(event.target.popUp);
 715                 var enable:Boolean = false;
 716                 if (selectedEntity != null && selectedEntity is EntityCollection) {
 717                         // Enable only if some entities aren't a member of the relation
 718                         enable=!rowData.universal;
 719                 }
 720                 if (enable==menu.dataProvider[2].enabled) return;
 721                 menu.dataProvider[2].enabled=enable;
 722                 menu.invalidateList();
 723         }
 724
 725         /** Do the action selected in the relation actions menu */
 726
 727         public function selectRelationMenu(event:MenuEvent):void {
 728                 var rel:Relation=rowData.relation;
 729                 var entities:Array;
 730                 var controller:EditController=Application.application.theController;
 731                 switch (event.index) {
 732                         case 0: // Select all members
 733                                 entities=selectedEntity.entities.concat(rel.memberEntities);
 734                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return arr.indexOf(e) == i } );      // remove duplicates
 735                                 // ** FIXME: This is a really horrible way of changing the controller state
 736                                 controller.setState(controller.findStateForSelection(entities));
 737                                 break;
 738
 739                         case 1: // Deselect all members
 740                                 entities=selectedEntity.entities;
 741                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return !e.hasParent(rel) } );
 742                                 controller.setState(controller.findStateForSelection(entities));
 743                                 break;
 744
 745                         case 2: // Add selection to this relation
 746                                 var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 747                                 for each (var entity:Entity in selectedEntity.entities) {
 748                                         if (!entity.hasParent(rel)) {
 749                                                 rel.appendMember(new RelationMember(entity,''), undo.push);
 750                                         }
 751                                 }
 752                                 MainUndoStack.getGlobalStack().addAction(undo);
 753                                 break;
 754
 755                         case 3: // Delete relation
 756                                 Alert.show("Do you really want to delete the relation?","Are you sure?",Alert.YES | Alert.CANCEL,null,
 757                                         function(event:CloseEvent):void {
 758                                                 if (event.detail==Alert.CANCEL) return;
 759                                                 rel.remove(MainUndoStack.getGlobalStack().addAction);
 760                                         } );
 761                                 break;
 762                 }
 763         }
 764
 765       private function tagChanged(event:TagEvent):void {
 766           refreshFeatureIcon();
 767       }
 768
 769       public function loadFeatures():void {
 770           mapFeatures = MapFeatures.getInstance();
 771           stack.removeChild(membersVBox); // remove by default, will be added if relation
 772       }
 773
 774       /** Open up a new browser page, showing the help page as defined in Map Features XML file .*/
 775       public function openDescription():void {
 776           if ( feature != null && feature.hasHelpURL() )
 777               navigateToURL(new URLRequest(feature.helpURL), "potlatch_help");
 778       }
 779
 780       /** Open up a new browser page showing OSM's view of the current entity. */
 781       public function openEntityPage():void {
 782           if (selectedEntity != null && selectedEntity.id >= 0) {
 783               // This is slightly hard-coded, but not drastically. The ../s could be changed for string manipulation of the apiBase
 784               var urlBase:String = connection.apiBase + '../../browse/'
 785               navigateToURL(new URLRequest(urlBase+selectedEntity.getType()+'/'+selectedEntity.id), "potlatch_browse");
 786           }
 787       }
 788
 789       public function addToRelation():void {
 790           new RelationSelectPanel().init(selectedEntity,new Object());
 791       }
 792
 793       private function removeFromRelation(id:Number, index:int=-1):void {
 794                 var rel:Relation=connection.getRelation(id);
 795                 if (index>-1) {
 796                         rel.removeMemberByIndex(index, MainUndoStack.getGlobalStack().addAction);
 797                 } else if (selectedEntity is EntityCollection) {
 798                         var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 799                         for each (var e:Entity in EntityCollection(selectedEntity).entities) rel.removeMember(e,undo.push);
 800                         MainUndoStack.getGlobalStack().addAction(undo);
 801                 }
 802       }
 803
 804       public function changeFeatureType(event:Event):void {
 805           if ( selectedEntity == null )
 806               return;
 807
 808           UIComponent.suspendBackgroundProcessing();
 809           var newFeature:Feature = currentCategorySelector.selectedType;
 810           var undoStack:Function = MainUndoStack.getGlobalStack().addAction;
 811           var action:CompositeUndoableAction = new CompositeUndoableAction(
 812                   "Set "+selectedEntity.getType()+" "+selectedEntity.id+" to "+newFeature.name);
 813                   selectedEntity.suspend();
 814
 815           // remove tags from the current feature
 816           if ( feature != null ) {
 817               for each( var oldtag:Object in feature.tags ) {
 818                   selectedEntity.setTag(oldtag["k"], null, action.push);
 819               }
 820           }
 821
 822           // set tags for new feature
 823           if ( newFeature != null ) {
 824               for each( var newtag:Object in newFeature.tags ) {
 825                   selectedEntity.setTag(newtag["k"], newtag["v"], action.push);
 826               }
 827           }
 828
 829                   selectedEntity.resume();
 830           undoStack(action);
 831           popupChange.close();
 832           initialiseEditors();
 833           UIComponent.resumeBackgroundProcessing();
 834       }
 835
 836         private function resizePOIGrid(event:Event):void {
 837                 var rows:Number=event.target.dataProvider.length/event.target.columnCount;
 838                 if (rows!=Math.floor(rows)) { rows=Math.floor(rows+1); }
 839                 event.target.height=rows*(event.target.rowHeight+1);
 840         }
 841   ]]></mx:Script>
 842 </mx:VBox>
 843