net/systemeD/potlatch2/TagViewer.mxml

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <mx:VBox
   3     xmlns:fx="http://ns.adobe.com/mxml/2009"
   4         xmlns:mx="library://ns.adobe.com/flex/mx"
   5         xmlns:flexlib="flexlib.containers.*"
   6         xmlns:controls="net.systemeD.controls.*"
   7         xmlns:potlatch2="net.systemeD.potlatch2.*"
   8     xmlns:sidepanel="net.systemeD.potlatch2.panels.*"
   9         horizontalScrollPolicy="off"
  10     backgroundColor="white"
  11     initialize="loadFeatures()">
  12
  13 <mx:ViewStack id="sidebar" width="100%" height="100%" creationPolicy="all">
  14
  15   <!-- Drag & drop icon panel -->
  16
  17   <mx:VBox id="dndPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
  18     <mx:Text id="dndPanelText" text="{dndPrompt}" width="100%" styleName="helpInfo" />
  19         <mx:Repeater id="dndRep" dataProvider="{MapFeatures.getInstance().getCategoriesForType('point')}" styleName="dndRepeater">
  20                 <mx:HBox width="100%" styleName="dndPanelCategory">
  21                         <mx:Label text="{dndRep.currentItem.name}:" styleName="dndPanelCategoryLabel"/>
  22                 </mx:HBox>
  23
  24                 <mx:TileList dataProvider="{dndRep.currentItem.getFeaturesForType('point', true)}" width="100%" height="1"
  25                                      rowHeight="32" columnWidth="32" updateComplete="resizePOIGrid(event)" styleName="dndPanelTileList">
  26                         <mx:itemRenderer>
  27                                 <fx:Component>
  28                                         <mx:VBox toolTip="{data.name}">
  29                                                 <fx:Script><![CDATA[
  30                                                         import mx.events.DragEvent;
  31                                                         import mx.managers.DragManager;
  32                                                         import mx.core.DragSource;
  33
  34                                                         private function dragPOI(event:MouseEvent, tags:Array):void {
  35                                                                 // Get the drag initiator component from the event object.
  36                                                                 var dragInitiator:Image = event.currentTarget as Image;
  37                                                                 var dragSource:DragSource = new DragSource();
  38                                                                 dragSource.addData(tags, 'tags');
  39                                                                 dragSource.addData(event.target.parent.parent.parent.parent, 'container');
  40
  41                                                                 var dragProxy:Image = new Image();
  42                                                                 dragProxy.source = dragInitiator.source;
  43                                                                 dragProxy.width = dragInitiator.width;   // must set width and height explicitly
  44                                                                 dragProxy.height = dragInitiator.height; // for non-embedded images
  45                                                                 DragManager.doDrag(dragInitiator, dragSource, event, dragProxy);
  46                                                         }
  47                                                 ]]></fx:Script>
  48                                                 <mx:Image id="foo" source="{data.dndimage}" height="24" width="24" mouseMove="dragPOI(event, data.tags)" toolTip="{data.name}" />
  49                                         </mx:VBox>
  50                                 </fx:Component>
  51                         </mx:itemRenderer>
  52                 </mx:TileList>
  53         </mx:Repeater>
  54   </mx:VBox>
  55
  56   <!-- Standard tagging panel -->
  57
  58   <mx:VBox id="tagsPanel" width="100%" height="100%" creationPolicy="auto">
  59     <mx:ViewStack id="stack" width="100%" height="100%">
  60       <mx:VBox width="100%" height="100%" label="Simple" id="editorContainer" creationComplete="initEditorStackUIs()" styleName="dndPanelVbox">
  61         <mx:VBox width="100%" verticalGap="1" styleName="dndTagHeader">
  62           <mx:HBox width="100%" id="iconContainer" styleName="featureSelector">
  63             <mx:Image id="iconImage"/>
  64             <mx:Text condenseWhite="true" width="100%" id="iconText" styleName="dndIconText"/>
  65           </mx:HBox>
  66           <mx:HBox width="100%">
  67             <mx:PopUpButton id="popupChange" openAlways="true" width="100%" styleName="dndTagPopUpMenu" closeDuration="0" />
  68             <mx:LinkButton icon="@Embed('../../../embedded/information.svg')" click="openDescription()" id="helpLabel" styleName="helpInfo"/>
  69           </mx:HBox>
  70         </mx:VBox>
  71       </mx:VBox>
  72       <mx:VBox width="100%" height="100%" label="Advanced" id="advancedContainer" initialize="checkAdvanced()" verticalGap="1">
  73         <mx:Label id="advancedID" click="openEntityPage()">
  74           <mx:htmlText><![CDATA[<i>No Selection</i>]]></mx:htmlText>
  75         </mx:Label>
  76
  77                 <potlatch2:TagGrid id="advancedTagGrid" width="100%" height="75%" />
  78
  79         <mx:HBox horizontalAlign="right" width="100%">
  80           <mx:LinkButton label="Delete" click="advancedTagGrid.removeTag()" id="advancedDeleteButton" enabled="{advancedTagGrid.selectedItem != null? true : false}"/>
  81           <mx:LinkButton label="Add" click="advancedTagGrid.addNewTag()" id="advancedAddButton"/>
  82         </mx:HBox>
  83
  84         <mx:DataGrid editable="true" width="100%" height="25%" id="relationsGrid"
  85             doubleClickEnabled="true"
  86             itemDoubleClick="editRelation(relationsGrid.selectedItem.id)"
  87             doubleClick="if (event.target.parent==relationsGrid) { addToRelation(); }">
  88             <mx:columns>
  89                 <mx:DataGridColumn editable="false" dataField="description" headerText="Relation"/>
  90                 <mx:DataGridColumn editable="false" dataField="id_idx" headerText="ID"/>
  91                 <mx:DataGridColumn editable="true" dataField="role" headerText="Role">
  92                     <mx:itemEditor><fx:Component><mx:TextInput restrict="&#x0020;-&#x10FFFF;" /></fx:Component></mx:itemEditor>
  93                 </mx:DataGridColumn>
  94                                 <mx:DataGridColumn width="20" editable="false">
  95                                         <mx:itemRenderer>
  96                                                 <fx:Component>
  97                                     <mx:HBox horizontalAlign="center" verticalAlign="middle">
  98                                                                 <mx:PopUpButton arrowButtonWidth="12" paddingLeft="0" paddingRight="0" width="12" height="12"
  99                                                                                 open="{outerDocument.updateRelationMenu(event);}"
 100                                                                                 creationComplete="{outerDocument.createRelationMenu(PopUpButton(event.target));}"/>
 101                                                         </mx:HBox>
 102                                                 </fx:Component>
 103                                         </mx:itemRenderer>
 104                                 </mx:DataGridColumn>
 105             </mx:columns>
 106         </mx:DataGrid>
 107
 108         <mx:HBox horizontalAlign="right" width="100%">
 109           <mx:LinkButton label="Remove from" click="removeFromRelation(relationsGrid.selectedItem.id, relationsGrid.selectedItem.index)"
 110                           enabled="{relationsGrid.selectedItem != null? true : false}"/>
 111           <mx:LinkButton label="Add to" click="addToRelation()"/>
 112         </mx:HBox>
 113
 114       </mx:VBox>
 115
 116       <mx:VBox width="100%" height="100%" label="Members" id="membersVBox" initialize="checkMembers()" verticalGap="1">
 117         <mx:Label id="membersText" text="Relation Members"/>
 118         <mx:DataGrid editable="true" width="100%" height="100%" id="membersGrid"
 119                       dragEnabled="true" dragMoveEnabled="true" dropEnabled="true">
 120           <mx:columns>
 121             <mx:DataGridColumn editable="false" dataField="type" headerText="Type"/>
 122             <mx:DataGridColumn editable="false" dataField="id" headerText="ID"/>
 123             <mx:DataGridColumn editable="true" dataField="role" headerText="Role">
 124                                 <mx:itemEditor><fx:Component><mx:TextInput restrict="&#x0020;-&#x10FFFF;" /></fx:Component></mx:itemEditor>
 125                         </mx:DataGridColumn>
 126           </mx:columns>
 127         </mx:DataGrid>
 128       </mx:VBox>
 129
 130       </mx:ViewStack>
 131
 132           <mx:HBox width="100%">
 133                 <mx:LinkBar dataProvider="{stack}"/>
 134                 <mx:Spacer width="100%"/>
 135                 <mx:LinkButton
 136                         icon="@Embed('../../../embedded/view_tabbed.png')"
 137                         disabledIcon="@Embed('../../../embedded/view_tabbed_disabled.png')"
 138                         click="setEditorStackUI(true)" id="tabNavigatorLabel" paddingTop="6"
 139                         toolTip="Show in tabs"
 140                         enabled="{editorStack is Accordion &amp;&amp; stack.selectedIndex==0}" />
 141                 <mx:LinkButton
 142                         icon="@Embed('../../../embedded/view_accordion.png')"
 143                         disabledIcon="@Embed('../../../embedded/view_accordion_disabled.png')"
 144                         click="setEditorStackUI(false)" id="accordionLabel" paddingTop="6"
 145                         toolTip="Show in sliding windows"
 146                         enabled="{editorStack is TabNavigator &amp;&amp; stack.selectedIndex==0}" />
 147           </mx:HBox>
 148   </mx:VBox>
 149
 150   <!-- Multiple selection -->
 151
 152   <mx:VBox id="multiplePanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 153     <potlatch2:TagGrid id="multiAdvancedTagGrid" width="100%" height="75%" />
 154         <mx:HBox horizontalAlign="right" width="100%">
 155           <mx:LinkButton label="Delete" click="multiAdvancedTagGrid.removeTag()" enabled="{multiAdvancedTagGrid.selectedItem != null? true : false}"/>
 156           <mx:LinkButton label="Add" click="multiAdvancedTagGrid.addNewTag()" />
 157         </mx:HBox>
 158
 159     <mx:DataGrid editable="true" width="100%" height="25%" id="multiRelationsGrid"
 160         doubleClickEnabled="true"
 161         itemDoubleClick="editRelation(multiRelationsGrid.selectedItem.id)"
 162         doubleClick="if (event.target.parent==multiRelationsGrid) { addToRelation(); }">
 163         <mx:columns>
 164             <mx:DataGridColumn editable="false" dataField="description" headerText="Relation"/>
 165             <mx:DataGridColumn editable="false" dataField="id_idx" headerText="ID"/>
 166             <mx:DataGridColumn editable="true" dataField="role" headerText="Role">
 167                 <mx:itemEditor><fx:Component><mx:TextInput restrict="&#x0020;-&#x10FFFF;" /></fx:Component></mx:itemEditor>
 168             </mx:DataGridColumn>
 169                         <mx:DataGridColumn width="20" editable="false">
 170                                 <mx:itemRenderer>
 171                                         <fx:Component>
 172                             <mx:HBox horizontalAlign="center" verticalAlign="middle">
 173                                                         <mx:PopUpButton arrowButtonWidth="12" paddingLeft="0" paddingRight="0" width="12" height="12"
 174                                                                         open="{outerDocument.updateRelationMenu(event);}"
 175                                                                         creationComplete="{outerDocument.createRelationMenu(PopUpButton(event.target));}"/>
 176                                                 </mx:HBox>
 177                                         </fx:Component>
 178                                 </mx:itemRenderer>
 179                         </mx:DataGridColumn>
 180         </mx:columns>
 181     </mx:DataGrid>
 182     <mx:HBox horizontalAlign="right" width="100%">
 183       <mx:LinkButton label="Remove from" click="removeFromRelation(multiRelationsGrid.selectedItem.id)"
 184                       enabled="{multiRelationsGrid.selectedItem != null? true : false}"/>
 185       <mx:LinkButton label="Add to" click="addToRelation()"/>
 186     </mx:HBox>
 187
 188   </mx:VBox>
 189
 190   <!-- Multiple selection but items cannot be edited -->
 191
 192   <mx:VBox id="multipleInvalidPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 193         <mx:Text id="multipleInvalidPanelText" text="You have selected multiple items." width="100%" styleName="helpInfo" />
 194   </mx:VBox>
 195
 196   <!-- Generic marker panel -->
 197
 198   <mx:VBox id="markerPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 199     <sidepanel:MarkerPanel id="markerPanelContents" width="100%"/>
 200   </mx:VBox>
 201
 202   <!-- Bug editing panel -->
 203
 204   <mx:VBox id="bugPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 205     <sidepanel:BugPanel id="bugPanelContents" width="100%"/>
 206   </mx:VBox>
 207
 208   <!-- Background layer selection -->
 209
 210   <mx:VBox id="backgroundPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 211     <sidepanel:BackgroundPanel id="backgroundPanelContents" width="100%"/>
 212   </mx:VBox>
 213
 214   <!-- merge tags from background layer -->
 215
 216   <mx:VBox id="backgroundMergePanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 217     <sidepanel:BackgroundMergePanel id="backgroundMergePanelContents" width="100%" />
 218   </mx:VBox>
 219
 220 </mx:ViewStack>
 221
 222   <fx:Script><![CDATA[
 223       import net.systemeD.halcyon.connection.*;
 224       import net.systemeD.halcyon.MapPaint;
 225       import net.systemeD.potlatch2.EditController;
 226       import net.systemeD.potlatch2.mapfeatures.*;
 227       import net.systemeD.potlatch2.utils.*;
 228       import net.systemeD.controls.CollapsiblePanel;
 229
 230       import mx.collections.*;
 231       import mx.containers.*;
 232       import mx.events.*;
 233       import mx.core.*;
 234       import mx.managers.PopUpManager;
 235       import mx.controls.Menu;
 236       import mx.controls.Alert;
 237       import flash.geom.Point;
 238       import flash.net.*;
 239       import mx.events.DragEvent;
 240       import mx.managers.DragManager;
 241       import mx.core.DragSource;
 242       import mx.controls.TabBar;
 243 //    import flexlib.containers.SuperTabNavigator;
 244
 245       [Bindable] [Embed(source="../../../embedded/tab_basic.png"       )] private var tabIconBasic:Class;
 246       [Bindable] [Embed(source="../../../embedded/tab_address.png"     )] private var tabIconAddress:Class;
 247       [Bindable] [Embed(source="../../../embedded/tab_cycle.png"       )] private var tabIconCycle:Class;
 248       [Bindable] [Embed(source="../../../embedded/tab_details.png"     )] private var tabIconDetails:Class;
 249       [Bindable] [Embed(source="../../../embedded/tab_restrictions.png")] private var tabIconRestrictions:Class;
 250       [Bindable] [Embed(source="../../../embedded/tab_transport.png"   )] private var tabIconTransport:Class;
 251       [Bindable] [Embed(source="../../../embedded/tab_walk.png"        )] private var tabIconWalk:Class;
 252       private var tabIcons:Object= { Basic:tabIconBasic, Details:tabIconDetails, Address:tabIconAddress, Walk:tabIconWalk, Cycle:tabIconCycle,
 253                                          Transport:tabIconTransport, Restrictions:tabIconRestrictions};
 254
 255       [Bindable]
 256       public var dndPrompt:String="Add new points by dragging them onto the map";
 257
 258       private var editorStackTabNavigator:TabNavigator;
 259       private var editorStackAccordion:Accordion;
 260       [Bindable] private var editorStack:Container;
 261
 262       public var mapFeatures:MapFeatures;
 263       public var controller:EditController;
 264       private var selectedEntity:Entity;
 265       private var connection:Connection;
 266       private var currentCategorySelector:CategorySelector;
 267       private var categorySelectors:Object = {};        // hash of categorySelectors for each limitType
 268       private var feature:Feature = null;
 269
 270       private var rowData:Object;               // relation membership reference, needed so it's accessible from relation actions menu
 271
 272           public function setEntity(entities:Array, layer:MapPaint=null):void {
 273                 UIComponent.suspendBackgroundProcessing();
 274                 connection=null;
 275
 276                 var firstSelected:Entity=null;
 277                 if (entities.length==1) { firstSelected=entities[0]; }
 278
 279                 if (selectedEntity!=firstSelected && selectedEntity!=null) {
 280                         selectedEntity.removeEventListener(Connection.TAG_CHANGED, tagChanged);
 281                         selectedEntity.removeEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 282                         selectedEntity.removeEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 283                 }
 284
 285                 if (entities.length==0) {
 286                         // Nothing selected, so show drag-and-drop panel
 287                         sidebar.selectedChild = dndPanel;
 288
 289                 } else if (entities.length==1) {
 290                         // Single entity selected, so show tag panel
 291                         selectedEntity=firstSelected;
 292                         connection=firstSelected.connection;
 293                         if (selectedEntity!=null) { selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged); }
 294                         if (advancedID!=null) { setupAdvanced(firstSelected); }
 295                         if (firstSelected is Relation) { stack.addChild(membersVBox); }
 296             if (selectedEntity is Marker && connection is BugConnection) {
 297               bugPanelContents.init(selectedEntity, BugConnection(connection));
 298               sidebar.selectedChild = bugPanel;
 299             } else if (selectedEntity is Marker) {
 300               markerPanelContents.init(selectedEntity, layer);
 301               sidebar.selectedChild = markerPanel;
 302             } else if (connection is SnapshotConnection) {
 303               backgroundPanelContents.init(selectedEntity, layer);
 304               sidebar.selectedChild = backgroundPanel;
 305             } else {
 306               refreshFeatureIcon();
 307               initialiseEditors();
 308               sidebar.selectedChild = tagsPanel;
 309             }
 310
 311         } else if (entities.length==2
 312                       && xor(entities[0].connection is SnapshotConnection, entities[1].connection is SnapshotConnection)
 313                       && xor(!controller.map.getLayerForEntity(entities[0]).isBackground, !controller.map.getLayerForEntity(entities[1]).isBackground) ) {
 314             backgroundMergePanelContents.init(entities);
 315             sidebar.selectedChild = backgroundMergePanel;
 316
 317                 } else if(isMultipleEditable(entities)) {
 318                         selectedEntity = new EntityCollection(entities);
 319                         selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged);
 320             sidebar.selectedChild = multiplePanel;
 321                         setupMultiAdvanced(selectedEntity);
 322                         connection=entities[0].connection;
 323
 324                 } else {
 325                         //The selection contains elements which can't be edited all together.
 326                         sidebar.selectedChild = multipleInvalidPanel;
 327                 }
 328                 UIComponent.resumeBackgroundProcessing();
 329       }
 330
 331       private function xor(a:Boolean, b:Boolean):Boolean {
 332           return ( a || b) && !(a && b);
 333       }
 334
 335       private function refreshFeatureIcon():void {
 336           var oldFeature:Feature = feature;
 337           feature = selectedEntity == null ? null : mapFeatures.findMatchingFeature(selectedEntity);
 338           if ( feature != oldFeature ) {
 339               if ( oldFeature != null )
 340                   oldFeature.removeEventListener("imageChanged", featureImageChanged);
 341               if ( feature != null )
 342                   feature.addEventListener("imageChanged", featureImageChanged);
 343           }
 344           setCategorySelector(selectedEntity, feature);
 345       }
 346
 347       private function featureImageChanged(event:Event):void {
 348           setCategorySelector(selectedEntity, feature);
 349       }
 350
 351       /** Set the icon, categorySelector and help text for the current entity. */
 352       private function setCategorySelector(entity:Entity, feature:Feature):void {
 353                         // Remove the "user has selected something" event listener from previous categorySelector,
 354                         // and make it invisible because Flex is crap at updating click areas otherwise
 355                         if (currentCategorySelector) {
 356                                 currentCategorySelector.removeEventListener("selectedType", changeFeatureType);
 357                                 currentCategorySelector.visible=false;
 358                         }
 359
 360                         // Have we cached the categorySelector for this limitType? If not, create one
 361                         var lt:String=limitType(entity);
 362                         if (!categorySelectors[lt]) {
 363                                 categorySelectors[lt]=new CategorySelector();
 364                                 categorySelectors[lt].setLimitTypes(lt);
 365                         }
 366                         currentCategorySelector=categorySelectors[lt];
 367                         currentCategorySelector.addEventListener("selectedType", changeFeatureType, false, 0, true);
 368
 369                         // Update surrounding icon/text display
 370                         if (feature) {
 371                                 iconImage.source = feature.image;
 372                                 iconText.htmlText = feature.htmlDetails(entity);
 373                                 popupChange.label = feature.name;
 374                                 helpLabel.visible = feature.hasHelpURL();
 375                                 currentCategorySelector.setSelectedFeature(feature);
 376                         } else {
 377                                 iconImage.source = null;
 378                                 popupChange.label = "unknown";
 379                                 helpLabel.visible = false;
 380                                 if (entity==null) {
 381                                         iconText.htmlText = "<i>Nothing selected</i>";
 382                                 } else if (entity.hasTags()) {
 383                                         iconText.htmlText = "<b>Not recognised</b><br/><font size='10pt'>Try looking at the tags under the advanced properties</font>";
 384                                 } else {
 385                                         iconText.htmlText = "<b>No tags set</b><br/><font size='10pt'>Please use the menu below to define what this "+entity.getType()+" is</font>";
 386                                 }
 387                                 currentCategorySelector.setSelectedFeature(null);
 388                         }
 389
 390                         // Set it as the popup, and make sure it's visible
 391                         popupChange.popUp=currentCategorySelector;
 392                         currentCategorySelector.visible=true;
 393       }
 394
 395           private function isMultipleEditable(entities:Array):Boolean {
 396                 for each(var entity:Entity in entities) {
 397                         if(!(entity is Node || entity is Way))
 398                                 return false;
 399                 }
 400                 return true;
 401           }
 402
 403       private function limitType(entity:Entity):String {
 404           if      (entity is Node    ) return "point";
 405           else if (entity is Way     ) return Way(entity).isArea() ? "area" : "line";
 406           else if (entity is Relation) return "relation";
 407           return null;
 408       }
 409
 410       private var tabComponents:Object = {};
 411       private var subpanelComponents:Object = {};
 412
 413       private function initialiseEditors():void {
 414                 editorStack.removeAllChildren();
 415                 if ( selectedEntity == null || feature == null )
 416                         return;
 417
 418                 var basicEditorBox:VBox = createEditorBox();
 419                 basicEditorBox.label = "Basic";
 420                 basicEditorBox.icon=tabIconBasic;
 421                 editorStack.addChild(basicEditorBox);
 422
 423                 var tabs:Object = {};
 424                 var tabList:Array = [];
 425                 tabComponents = {};
 426                 var subpanels:Object = {};
 427                 subpanelComponents = {};
 428
 429                 // First create the tabs
 430                 for each (var factory:EditorFactory in feature.editors) {
 431                         var category:String = factory.category;
 432                         if (category!='') {
 433                                 var tab:VBox = tabs[category];
 434                                 if ( tab == null) {
 435                                         tab = createEditorBox();
 436                                         tab.label = category;
 437                                         if (tabIcons[category]) tab.icon=tabIcons[category];
 438                                         tabs[category] = tab;
 439                                         tabList.push(tab);
 440                                 }
 441                         }
 442                 }
 443
 444                 // Put the tabs on-screen in order
 445                 tabList.sort(sortCategories,16);
 446                 for each (tab in tabList) {
 447                         editorStack.addChild(tab);
 448                         tabComponents[tab] = [];
 449                 }
 450
 451                 // Then add the individual editors to them
 452                 for each (factory in feature.editors) {
 453
 454                         // Add to basic editor box first
 455                         if ( factory.presence.isEditorPresent(factory, selectedEntity, null) ) {
 456                                 var editor:DisplayObject = factory.createEditorInstance(selectedEntity);
 457                                 if (editor) basicEditorBox.addChild(editor);
 458                         }
 459
 460                         // Then prepare to add to category panel
 461                         category=factory.category;
 462                         if (factory.category=='') continue;
 463                         var catEditor:DisplayObject = factory.createEditorInstance(selectedEntity);
 464                         if (!catEditor) continue;
 465                         tab=tabs[category];
 466
 467                         // Create subcategory panel if needed
 468                         if (factory.subcategory) {
 469                                 var subcategory:String = factory.subcategory;
 470                                 if (!subpanels[category]) { subpanels[category]={}; }
 471                                 var subpanel:CollapsiblePanel = subpanels[category][subcategory];
 472                                 if (!subpanel) {
 473                                         subpanel=new CollapsiblePanel(false);
 474                                         subpanel.percentWidth=100;
 475                                         subpanel.styleName="subcategoryPanel";
 476                                         subpanel.title=subcategory;
 477                                         subpanels[category][subcategory]=subpanel;
 478                                         tabComponents[tab].push(subpanel);
 479                                 }
 480                                 subpanel.addChild(catEditor);
 481                         } else {
 482                                 tabComponents[tab].push(catEditor);
 483                         }
 484                 }
 485       }
 486
 487         // ** FIXME: Order probably shouldn't be hard-coded, but configurable
 488         private static var categoryOrder:Array=["Restrictions","Transport","Cycle","Walk","Address","Details"]; // reverse order
 489         private function sortCategories(a:VBox,b:VBox):int {
 490                 var a1:int=categoryOrder.indexOf(a.label);
 491                 var a2:int=categoryOrder.indexOf(b.label);
 492                 if (a1<a2) { return 1; }
 493                 else if (a1>a2) { return -1; }
 494                 return 0;
 495         }
 496
 497       private function createEditorBox():VBox {
 498           var box:VBox = new VBox();
 499           box.percentWidth = 100;
 500           box.percentHeight = 100;
 501           box.styleName = "dndEditorContainer";
 502           return box;
 503       }
 504
 505       private function ensureEditorsPopulated(tab:VBox):void {
 506           var components:Array = tabComponents[tab];
 507           if ( components == null || tab == null || tab.numChildren >= components.length )
 508               return;
 509           for each (var component:DisplayObject in components ) {
 510               tab.addChild(component);
 511           }
 512       }
 513
 514         private function initEditorStackUIs():void {
 515                 editorStackTabNavigator = new TabNavigator();
 516 //              editorStackTabNavigator.allowTabSqueezing=false;
 517 //              editorStackTabNavigator.minTabWidth=10;
 518 //              editorStackTabNavigator.closePolicy="close_never";
 519 //              editorStackTabNavigator.scrollSpeed=20;
 520                 editorStackTabNavigator.creationPolicy="auto";
 521                 editorStackTabNavigator.percentWidth=100;
 522                 editorStackTabNavigator.percentHeight=100;
 523                 editorStackTabNavigator.styleName="dndStackTab";
 524 //              editorStackTabNavigator.popUpButtonPolicy="off"
 525
 526
 527                 editorStackAccordion = new Accordion();
 528                 editorStackAccordion.percentWidth=100;
 529                 editorStackAccordion.percentHeight=100;
 530                 editorStackAccordion.creationPolicy="auto";
 531                 editorStackAccordion.styleName="dndStackAccordion";
 532                 /* FIXME: the accordion icons should be right-aligned. See:
 533                 http://www.kristoferjoseph.com/blog/2008/11/06/positioning-the-flex-accordion-header-icon
 534                 http://blog.flexexamples.com/2007/09/13/changing-text-alignment-in-an-flex-accordion-header/
 535                 */
 536
 537                 setEditorStackUI(true);
 538         }
 539
 540         private function setEditorStackUI(isTabbed:Boolean):void {
 541                 var children:Array=[]; var i:uint;
 542
 543                 if (editorStack) {
 544                         // blank existing component
 545                         editorStack.removeEventListener("change",editorStackUIChange);
 546                         editorStack.removeEventListener("updateComplete",editorStackUIUpdate);
 547                         editorStack.removeAllChildren();
 548                         editorContainer.removeChildAt(1);
 549                 }
 550
 551                 // replace with new component
 552                 editorStack = (isTabbed ? editorStackTabNavigator : editorStackAccordion) as Container;
 553                 editorContainer.addChild(editorStack);
 554
 555                 // re-add children and listeners
 556                 initialiseEditors();
 557                 editorStack.addEventListener("change",editorStackUIChange);
 558                 editorStack.addEventListener("updateComplete",editorStackUIUpdate);
 559         }
 560
 561         private function editorStackUIChange(event:Event):void {
 562                 ensureEditorsPopulated(IndexChangedEvent(event).relatedObject as VBox);
 563         }
 564
 565         private function editorStackUIUpdate(event:Event):void {
 566                 if (editorStack is TabNavigator) {
 567                         var e:TabNavigator = editorStack as TabNavigator;
 568                         if (e.selectedIndex<0) { return; }
 569                         for (var i:uint=0; i<e.numChildren; i++) {
 570                                 e.getTabAt(i).selected=(i==e.selectedIndex);
 571                         }
 572                 }
 573         }
 574
 575
 576         public function togglePanel():void {
 577                 if (stack.selectedChild==editorContainer && selectedEntity!=null) {
 578                         stack.selectedChild=advancedContainer;
 579                 } else if (stack.selectedChild!=editorContainer) {
 580                         stack.selectedChild=editorContainer;
 581                 }
 582         }
 583
 584         public function selectAdvancedPanel():void {
 585                 checkAdvanced();
 586                 stack.selectedChild=advancedContainer;
 587         }
 588
 589       private function checkAdvanced():void {
 590           if ( selectedEntity != null )
 591              setupAdvanced(selectedEntity);
 592       }
 593
 594       private var listeningToRelations:Array = [];
 595
 596       private function setupAdvanced(entity:Entity):void {
 597                 if (!advancedTagGrid) advancedContainer.createComponentsFromDescriptors();      // if Flex hasn't created it, force it
 598                 advancedTagGrid.init(entity);
 599
 600                 if ( entity == null ) {
 601                         advancedID.htmlText = "";
 602                 } else {
 603                         var entityText:String = "xx";
 604                         if      ( entity is Node     ) entityText = "Node";
 605                         else if ( entity is Way      ) entityText = "Way";
 606                         else if ( entity is Relation ) entityText = "Relation";
 607                         advancedID.htmlText = entityText+": <b>"+entity.id+"</b>";
 608                 }
 609
 610                 removeRelationListeners();
 611
 612                 if ( entity == null ) {
 613                         relationsGrid.dataProvider = null;
 614                 } else {
 615                         resetRelationsGrid(entity);
 616                         entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 617                         entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 618                 }
 619       }
 620
 621           private function setupMultiAdvanced(entity:Entity):void {
 622                 multiAdvancedTagGrid.init(entity);
 623                 resetRelationsGrid(entity);
 624                 entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation, false, 0, true);
 625                 entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation, false, 0, true);
 626       }
 627
 628           public function addNewTag():void {
 629                 if (stack.selectedChild!=advancedContainer) { return; }
 630                 advancedTagGrid.addNewTag();
 631           }
 632
 633       private function addedToRelation(event:RelationMemberEvent):void {
 634          resetRelationsGrid(selectedEntity);
 635       }
 636
 637       private function removedFromRelation(event:RelationMemberEvent):void {
 638          resetRelationsGrid(selectedEntity);
 639       }
 640
 641       private function removeRelationListeners():void {
 642           for each( var rel:Relation in listeningToRelations ) {
 643               rel.removeEventListener(Connection.TAG_CHANGED, relationTagChanged);
 644               rel.removeEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 645               rel.removeEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 646           }
 647           listeningToRelations = [];
 648           if (relationsGrid) relationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 649           if (multiRelationsGrid) multiRelationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 650       }
 651
 652       private function resetRelationsGrid(entity:Entity):void {
 653           removeRelationListeners();
 654
 655           var instance:DataGrid=relationsGrid;
 656           if (entity is EntityCollection) instance=multiRelationsGrid;
 657           var memberships:Array = entity.getRelationMemberships();
 658           for each (var m:Object in memberships) {
 659               m.relation.addEventListener(Connection.TAG_CHANGED, relationTagChanged);
 660               m.relation.addEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 661               m.relation.addEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 662               listeningToRelations.push(m.relation);
 663           }
 664           instance.dataProvider = memberships;
 665           instance.addEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged, false, -100);
 666       }
 667
 668       private function relationRoleChanged(event:DataGridEvent):void {
 669                 if (event.dataField != 'role') { return; }      // shouldn't really happen
 670
 671                 var relations:Array=event.currentTarget.dataProvider.toArray();
 672                 var props:Object=relations[event.rowIndex];
 673
 674                 var relation:Relation=props['relation'];
 675                 var newRole:String=event.itemRenderer.data['role'];
 676
 677                 if (selectedEntity is EntityCollection) {
 678                         for each (var entity:Entity in EntityCollection(selectedEntity).entities) {
 679                                 var indexes:Array=relation.findEntityMemberIndexes(entity);
 680                                 for each (var index:int in indexes) {
 681                                         relation.setMember(index, new RelationMember(entity,newRole), MainUndoStack.getGlobalStack().addAction);
 682                                 }
 683                         }
 684                 } else {
 685                         relation.setMember(props['index'], new RelationMember(selectedEntity,newRole), MainUndoStack.getGlobalStack().addAction);
 686                 }
 687       }
 688
 689       private function relationTagChanged(event:TagEvent):void {
 690           resetRelationsGrid(selectedEntity);
 691       }
 692
 693       private function entityRelationMemberChanged(event:RelationMemberEvent):void {
 694           resetRelationsGrid(selectedEntity);
 695       }
 696
 697       private function checkMembers():void {
 698           if (selectedEntity is Relation) {
 699             setupMembers(selectedEntity as Relation);
 700           }
 701       }
 702
 703       private function setupMembers(rel:Relation):void {
 704           var members:Array = [];
 705           for (var i:int=0 ; i<rel.length; i++) {
 706             var props:Object = {};
 707             var member:RelationMember = rel.getMember(i);
 708             props["id"] = member.entity.id;
 709             props["type"] = member.entity.getType();
 710             props["role"] = member.role;
 711
 712             members.push(props);
 713           }
 714           membersGrid.dataProvider = members;
 715           membersGrid.dataProvider.addEventListener('collectionChange', membersChange);
 716       }
 717
 718       private function membersChange(event:Event):void {
 719           // Dropping all the members and re-adding them isn't exactly optimal
 720           // but is at least robust for any kind of change.
 721           // Figuring out a better way is someone else's FIXME
 722
 723           var rel:Relation = selectedEntity as Relation;
 724           var action:CompositeUndoableAction = new CompositeUndoableAction("Rearrange relation members for "+rel);
 725
 726           // drop members
 727           for (var i:int=rel.length-1 ; i>=0; i--) {
 728             rel.removeMemberByIndex(i, action.push);
 729           }
 730
 731           // add members in new order
 732           for each(var memberObject:Object in membersGrid.dataProvider) {
 733             var e:Entity;
 734             var id:Number = memberObject.id;
 735                         switch (memberObject.type) {
 736                                 case 'node':            e = connection.getNode(id); break;
 737                 case 'way':                     e = connection.getWay(id); break;
 738                                 case 'relation':        e = connection.getRelation(id); break;
 739             }
 740             rel.appendMember(new RelationMember(e, memberObject.role), action.push);
 741           }
 742           MainUndoStack.getGlobalStack().addAction(action);
 743       }
 744
 745       private function editRelation(id:Number):void {
 746           var panel:RelationEditorPanel = RelationEditorPanel(
 747               PopUpManager.createPopUp(Application(FlexGlobals.topLevelApplication), RelationEditorPanel, true));
 748           panel.setRelation(connection.getRelation(id));
 749           PopUpManager.centerPopUp(panel);
 750       }
 751
 752         /** Create relation actions menu */
 753
 754         public function createRelationMenu(button:PopUpButton):void {
 755                 var menu:Menu = new Menu();
 756                 var dp:Object = [ {label: "Select all members"},
 757                                                   {label: "Deselect all members"},
 758                                                   {label: "Add selection to this relation", enabled: false},
 759                                                   {label: "Delete relation"} ];
 760                 menu.dataProvider = dp;
 761                 menu.addEventListener("itemClick", selectRelationMenu);
 762                 button.popUp = menu;
 763         }
 764
 765         /** Enable 'add selection to...' entry only if some of the selection isn't in the relation.
 766             Called each time the menu is clicked. */
 767
 768         public function updateRelationMenu(event:Event):void {
 769                 rowData=event.target.parent.data;       // this makes it accessible from selectRelationMenu
 770                 var menu:Menu = Menu(event.target.popUp);
 771                 var enable:Boolean = false;
 772                 if (selectedEntity != null && selectedEntity is EntityCollection) {
 773                         // Enable only if some entities aren't a member of the relation
 774                         enable=!rowData.universal;
 775                 }
 776                 if (enable==menu.dataProvider[2].enabled) return;
 777                 menu.dataProvider[2].enabled=enable;
 778                 menu.invalidateList();
 779         }
 780
 781         /** Do the action selected in the relation actions menu */
 782
 783         public function selectRelationMenu(event:MenuEvent):void {
 784                 var rel:Relation=rowData.relation;
 785                 var entities:Array;
 786                 var controller:EditController=FlexGlobals.topLevelApplication.theController;
 787                 switch (event.index) {
 788                         case 0: // Select all members
 789                                 entities=selectedEntity.entities.concat(rel.memberEntities);
 790                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return arr.indexOf(e) == i } );      // remove duplicates
 791                                 // ** FIXME: This is a really horrible way of changing the controller state
 792                                 controller.setState(controller.findStateForSelection(entities));
 793                                 break;
 794
 795                         case 1: // Deselect all members
 796                                 entities=selectedEntity.entities;
 797                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return !e.hasParent(rel) } );
 798                                 controller.setState(controller.findStateForSelection(entities));
 799                                 break;
 800
 801                         case 2: // Add selection to this relation
 802                                 var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 803                                 for each (var entity:Entity in selectedEntity.entities) {
 804                                         if (!entity.hasParent(rel)) {
 805                                                 rel.appendMember(new RelationMember(entity,''), undo.push);
 806                                         }
 807                                 }
 808                                 MainUndoStack.getGlobalStack().addAction(undo);
 809                                 break;
 810
 811                         case 3: // Delete relation
 812                                 Alert.show("Do you really want to delete the relation?","Are you sure?",Alert.YES | Alert.CANCEL,null,
 813                                         function(event:CloseEvent):void {
 814                                                 if (event.detail==Alert.CANCEL) return;
 815                                                 rel.remove(MainUndoStack.getGlobalStack().addAction);
 816                                         } );
 817                                 break;
 818                 }
 819         }
 820
 821       private function tagChanged(event:TagEvent):void {
 822           refreshFeatureIcon();
 823       }
 824
 825       public function loadFeatures():void {
 826           mapFeatures = MapFeatures.getInstance();
 827           stack.removeChild(membersVBox); // remove by default, will be added if relation
 828       }
 829
 830       /** Open up a new browser page, showing the help page as defined in Map Features XML file .*/
 831       public function openDescription():void {
 832           if ( feature != null && feature.hasHelpURL() )
 833               navigateToURL(new URLRequest(feature.helpURL), "potlatch_help");
 834       }
 835
 836       /** Open up a new browser page showing OSM's view of the current entity. */
 837       public function openEntityPage():void {
 838           if (selectedEntity != null && selectedEntity.id >= 0) {
 839               // This is slightly hard-coded, but not drastically. The ../s could be changed for string manipulation of the apiBase
 840               var urlBase:String = connection.apiBase + '../../browse/'
 841               navigateToURL(new URLRequest(urlBase+selectedEntity.getType()+'/'+selectedEntity.id), "potlatch_browse");
 842           }
 843       }
 844
 845       public function addToRelation():void {
 846           new RelationSelectPanel().init(selectedEntity,new Object());
 847       }
 848
 849       private function removeFromRelation(id:Number, index:int=-1):void {
 850                 var rel:Relation=connection.getRelation(id);
 851                 if (index>-1) {
 852                         rel.removeMemberByIndex(index, MainUndoStack.getGlobalStack().addAction);
 853                 } else if (selectedEntity is EntityCollection) {
 854                         var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 855                         for each (var e:Entity in EntityCollection(selectedEntity).entities) rel.removeMember(e,undo.push);
 856                         MainUndoStack.getGlobalStack().addAction(undo);
 857                 }
 858       }
 859
 860       public function changeFeatureType(event:Event):void {
 861           if ( selectedEntity == null )
 862               return;
 863
 864           UIComponent.suspendBackgroundProcessing();
 865           var newFeature:Feature = currentCategorySelector.selectedType;
 866           var undoStack:Function = MainUndoStack.getGlobalStack().addAction;
 867           var action:CompositeUndoableAction = new CompositeUndoableAction(
 868                   "Set "+selectedEntity.getType()+" "+selectedEntity.id+" to "+newFeature.name);
 869                   selectedEntity.suspend();
 870
 871           // remove tags from the current feature
 872           if ( feature != null ) {
 873               for each( var oldtag:Object in feature.tags ) {
 874                   selectedEntity.setTag(oldtag["k"], null, action.push);
 875               }
 876           }
 877
 878           // set tags for new feature
 879           if ( newFeature != null ) {
 880               for each( var newtag:Object in newFeature.tags ) {
 881                   selectedEntity.setTag(newtag["k"], newtag["v"], action.push);
 882               }
 883           }
 884
 885                   selectedEntity.resume();
 886           undoStack(action);
 887           popupChange.close();
 888           initialiseEditors();
 889           UIComponent.resumeBackgroundProcessing();
 890       }
 891
 892         private function resizePOIGrid(event:Event):void {
 893                 var rows:Number=event.target.dataProvider.length/event.target.columnCount;
 894                 if (rows!=Math.floor(rows)) { rows=Math.floor(rows+1); }
 895                 event.target.height=rows*(event.target.rowHeight+1);
 896         }
 897   ]]></fx:Script>
 898 </mx:VBox>
 899