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 </mx:ViewStack>
 208
 209   <mx:Script><![CDATA[
 210       import net.systemeD.halcyon.connection.*;
 211       import net.systemeD.halcyon.VectorLayer;
 212       import net.systemeD.potlatch2.mapfeatures.*;
 213
 214       import mx.collections.*;
 215       import mx.containers.*;
 216       import mx.events.*;
 217       import mx.core.*;
 218       import mx.managers.PopUpManager;
 219       import mx.controls.Menu;
 220       import mx.controls.Alert;
 221       import flash.geom.Point;
 222       import flash.net.*;
 223       import mx.events.DragEvent;
 224       import mx.managers.DragManager;
 225       import mx.core.DragSource;
 226       import flexlib.containers.SuperTabNavigator;
 227
 228       [Bindable]
 229       public var dndPrompt:String="Add new points by dragging them onto the map";
 230
 231       private var editorStackTabNavigator:SuperTabNavigator;
 232       private var editorStackAccordion:Accordion;
 233       [Bindable] private var editorStack:Container;
 234
 235       public var mapFeatures:MapFeatures;
 236       private var selectedEntity:Entity;
 237       private var currentCategorySelector:CategorySelector;
 238       private var categorySelectors:Object = {};        // hash of categorySelectors for each limitType
 239       private var feature:Feature = null;
 240
 241       private var rowData:Object;               // relation membership reference, needed so it's accessible from relation actions menu
 242
 243           public function setEntity(entities:Array, layer:VectorLayer=null):void {
 244                 UIComponent.suspendBackgroundProcessing();
 245
 246                 var firstSelected:Entity=null;
 247                 if (entities.length==1) { firstSelected=entities[0]; }
 248
 249                 if (selectedEntity!=firstSelected && selectedEntity!=null) {
 250                         selectedEntity.removeEventListener(Connection.TAG_CHANGED, tagChanged);
 251                         selectedEntity.removeEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 252                         selectedEntity.removeEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 253                 }
 254
 255                 if (entities.length==0) {
 256                         // Nothing selected, so show drag-and-drop panel
 257                         sidebar.selectedChild = dndPanel;
 258
 259                 } else if (entities.length==1) {
 260                         // Single entity selected, so show tag panel
 261                         selectedEntity=firstSelected;
 262                         if (selectedEntity!=null) { selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged); }
 263                         if (advancedID!=null) { setupAdvanced(firstSelected); }
 264                         if (firstSelected is Relation) { stack.addChild(membersVBox); }
 265             if (selectedEntity is Marker && layer is BugLayer) {
 266               bugPanelContents.init(selectedEntity, layer);
 267               sidebar.selectedChild = bugPanel;
 268             } else if (selectedEntity is Marker) {
 269               markerPanelContents.init(selectedEntity, layer);
 270               sidebar.selectedChild = markerPanel;
 271             } else {
 272               refreshFeatureIcon();
 273               initialiseEditors();
 274               sidebar.selectedChild = tagsPanel;
 275             }
 276
 277                 } else if(isMultipleEditable(entities)) {
 278                         selectedEntity = new EntityCollection(entities);
 279                         selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged);
 280             sidebar.selectedChild = multiplePanel;
 281                         setupMultiAdvanced(selectedEntity);
 282
 283                 } else {
 284                         //The selection contains elements which can't be edited all together.
 285                         sidebar.selectedChild = multipleInvalidPanel;
 286                 }
 287                 UIComponent.resumeBackgroundProcessing();
 288       }
 289
 290       private function refreshFeatureIcon():void {
 291           var oldFeature:Feature = feature;
 292           feature = selectedEntity == null ? null : mapFeatures.findMatchingFeature(selectedEntity);
 293           if ( feature != oldFeature ) {
 294               if ( oldFeature != null )
 295                   oldFeature.removeEventListener("imageChanged", featureImageChanged);
 296               if ( feature != null )
 297                   feature.addEventListener("imageChanged", featureImageChanged);
 298           }
 299           setCategorySelector(selectedEntity, feature);
 300       }
 301
 302       private function featureImageChanged(event:Event):void {
 303           setCategorySelector(selectedEntity, feature);
 304       }
 305
 306       /** Set the icon, categorySelector and help text for the current entity. */
 307       private function setCategorySelector(entity:Entity, feature:Feature):void {
 308                         // Remove the "user has selected something" event listener from previous categorySelector,
 309                         // and make it invisible because Flex is crap at updating click areas otherwise
 310                         if (currentCategorySelector) {
 311                                 currentCategorySelector.removeEventListener("selectedType", changeFeatureType);
 312                                 currentCategorySelector.visible=false;
 313                         }
 314
 315                         // Have we cached the categorySelector for this limitType? If not, create one
 316                         var lt:String=limitType(entity);
 317                         if (!categorySelectors[lt]) {
 318                                 categorySelectors[lt]=new CategorySelector();
 319                                 categorySelectors[lt].setLimitTypes(lt);
 320                         }
 321                         currentCategorySelector=categorySelectors[lt];
 322                         currentCategorySelector.addEventListener("selectedType", changeFeatureType, false, 0, true);
 323
 324                         // Update surrounding icon/text display
 325                         if (feature) {
 326                                 iconImage.source = feature.image;
 327                                 iconText.htmlText = feature.htmlDetails(entity);
 328                                 popupChange.label = feature.name;
 329                                 helpLabel.visible = feature.hasHelpURL();
 330                                 currentCategorySelector.setSelectedFeature(feature);
 331                         } else {
 332                                 iconImage.source = null;
 333                                 popupChange.label = "unknown";
 334                                 helpLabel.visible = false;
 335                                 if (entity==null) {
 336                                         iconText.htmlText = "<i>Nothing selected</i>";
 337                                 } else if (entity.hasTags()) {
 338                                         iconText.htmlText = "<b>Not recognised</b><br/><font size='10pt'>Try looking at the tags under the advanced properties</font>";
 339                                 } else {
 340                                         iconText.htmlText = "<b>No tags set</b><br/><font size='10pt'>Please use the menu below to define what this "+entity.getType()+" is</font>";
 341                                 }
 342                                 currentCategorySelector.setSelectedFeature(null);
 343                         }
 344
 345                         // Set it as the popup, and make sure it's visible
 346                         popupChange.popUp=currentCategorySelector;
 347                         currentCategorySelector.visible=true;
 348       }
 349
 350           private function isMultipleEditable(entities:Array):Boolean {
 351                 for each(var entity:Entity in entities) {
 352                         if(!(entity is Node || entity is Way))
 353                                 return false;
 354                 }
 355                 return true;
 356           }
 357
 358       private function limitType(entity:Entity):String {
 359           if      (entity is Node    ) return "point";
 360           else if (entity is Way     ) return Way(entity).isArea() ? "area" : "line";
 361           else if (entity is Relation) return "relation";
 362           return null;
 363       }
 364
 365       private var tabComponents:Object = {};
 366
 367       private function initialiseEditors():void {
 368           editorStack.removeAllChildren();
 369           if ( selectedEntity == null || feature == null )
 370               return;
 371
 372           var editorBox:VBox = createEditorBox();
 373           editorBox.label = "Basic";
 374           editorStack.addChild(editorBox);
 375
 376           var tabs:Object = {};
 377           tabComponents = {};
 378
 379           for each (var factory:EditorFactory in feature.editors) {
 380               if ( factory.presence.isEditorPresent(factory, selectedEntity, null) ) {
 381                   var editor:DisplayObject = factory.createEditorInstance(selectedEntity);
 382                   if ( editor != null )
 383                       editorBox.addChild(editor);
 384               }
 385               var category:String = factory.category;
 386               if (category!='') {
 387                       var tab:VBox = tabs[category];
 388                       if ( tab == null) {
 389                           tab = createEditorBox();
 390                           tab.label = category;
 391                           editorStack.addChild(tab);
 392                           tabs[category] = tab;
 393                           tabComponents[tab] = [];
 394                       }
 395                       var catEditor:DisplayObject = factory.createEditorInstance(selectedEntity);
 396                       if ( catEditor != null )
 397                           tabComponents[tab].push(catEditor);
 398                       //    tab.addChild(catEditor);
 399               }
 400           }
 401       }
 402
 403       private function createEditorBox():VBox {
 404           var box:VBox = new VBox();
 405           box.percentWidth = 100;
 406           box.percentHeight = 100;
 407           box.styleName = "dndEditorContainer";
 408           return box;
 409       }
 410
 411       private function ensureEditorsPopulated(tab:VBox):void {
 412           var components:Array = tabComponents[tab];
 413           if ( components == null || tab == null || tab.numChildren >= components.length )
 414               return;
 415           for each (var component:DisplayObject in components ) {
 416               tab.addChild(component);
 417           }
 418       }
 419
 420         private function initEditorStackUIs():void {
 421                 editorStackTabNavigator = new SuperTabNavigator();
 422                 editorStackTabNavigator.allowTabSqueezing=false;
 423                 editorStackTabNavigator.minTabWidth=10;
 424                 editorStackTabNavigator.closePolicy="close_never";
 425                 editorStackTabNavigator.scrollSpeed=20;
 426                 editorStackTabNavigator.creationPolicy="auto";
 427                 editorStackTabNavigator.percentWidth=100;
 428                 editorStackTabNavigator.percentHeight=100;
 429                 editorStackTabNavigator.styleName="dndStackTab";
 430                 editorStackTabNavigator.popUpButtonPolicy="off"
 431
 432
 433                 editorStackAccordion = new Accordion();
 434                 editorStackAccordion.percentWidth=100;
 435                 editorStackAccordion.percentHeight=100;
 436                 editorStackAccordion.creationPolicy="auto";
 437                 editorStackAccordion.styleName="dndStackAccordion";
 438
 439                 setEditorStackUI(true);
 440         }
 441
 442         private function setEditorStackUI(isTabbed:Boolean):void {
 443                 var children:Array=[]; var i:uint;
 444
 445                 if (editorStack) {
 446                         // blank existing component
 447                         editorStack.removeEventListener("change",editorStackUIChange);
 448                         editorStack.removeEventListener("updateComplete",editorStackUIUpdate);
 449                         editorStack.removeAllChildren();
 450                         editorContainer.removeChildAt(1);
 451                 }
 452
 453                 // replace with new component
 454                 editorStack = (isTabbed ? editorStackTabNavigator : editorStackAccordion) as Container;
 455                 editorContainer.addChild(editorStack);
 456
 457                 // re-add children and listeners
 458                 initialiseEditors();
 459                 editorStack.addEventListener("change",editorStackUIChange);
 460                 editorStack.addEventListener("updateComplete",editorStackUIUpdate);
 461         }
 462
 463         private function editorStackUIChange(event:Event):void {
 464                 ensureEditorsPopulated(IndexChangedEvent(event).relatedObject as VBox);
 465         }
 466
 467         private function editorStackUIUpdate(event:Event):void {
 468                 if (editorStack is SuperTabNavigator) {
 469                         var e:SuperTabNavigator = editorStack as SuperTabNavigator;
 470                         if (e.selectedIndex<0) { return; }
 471                         for (var i:uint=0; i<e.numChildren; i++) {
 472                                 e.getTabAt(i).selected=(i==e.selectedIndex);
 473                         }
 474                 }
 475         }
 476
 477
 478         public function togglePanel():void {
 479                 if (stack.selectedChild==editorContainer && selectedEntity!=null) {
 480                         stack.selectedChild=advancedContainer;
 481                 } else if (stack.selectedChild!=editorContainer) {
 482                         stack.selectedChild=editorContainer;
 483                 }
 484         }
 485
 486         public function selectAdvancedPanel():void {
 487                 checkAdvanced();
 488                 stack.selectedChild=advancedContainer;
 489         }
 490
 491       private function checkAdvanced():void {
 492           if ( selectedEntity != null )
 493              setupAdvanced(selectedEntity);
 494       }
 495
 496       private var listeningToRelations:Array = [];
 497
 498       private function setupAdvanced(entity:Entity):void {
 499                 if (!advancedTagGrid) advancedContainer.createComponentsFromDescriptors();      // if Flex hasn't created it, force it
 500                 advancedTagGrid.init(entity);
 501
 502                 if ( entity == null ) {
 503                         advancedID.htmlText = "";
 504                 } else {
 505                         var entityText:String = "xx";
 506                         if      ( entity is Node     ) entityText = "Node";
 507                         else if ( entity is Way      ) entityText = "Way";
 508                         else if ( entity is Relation ) entityText = "Relation";
 509                         advancedID.htmlText = entityText+": <b>"+entity.id+"</b>";
 510                 }
 511
 512                 removeRelationListeners();
 513
 514                 if ( entity == null ) {
 515                         relationsGrid.dataProvider = null;
 516                 } else {
 517                         resetRelationsGrid(entity);
 518                         entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 519                         entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 520                 }
 521       }
 522
 523           private function setupMultiAdvanced(entity:Entity):void {
 524                 multiAdvancedTagGrid.init(entity);
 525                 resetRelationsGrid(entity);
 526                 entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation, false, 0, true);
 527                 entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation, false, 0, true);
 528       }
 529
 530           public function addNewTag():void {
 531                 if (stack.selectedChild!=advancedContainer) { return; }
 532                 advancedTagGrid.addNewTag();
 533           }
 534
 535       private function addedToRelation(event:RelationMemberEvent):void {
 536          resetRelationsGrid(selectedEntity);
 537       }
 538
 539       private function removedFromRelation(event:RelationMemberEvent):void {
 540          resetRelationsGrid(selectedEntity);
 541       }
 542
 543       private function removeRelationListeners():void {
 544           for each( var rel:Relation in listeningToRelations ) {
 545               rel.removeEventListener(Connection.TAG_CHANGED, relationTagChanged);
 546               rel.removeEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 547               rel.removeEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 548           }
 549           listeningToRelations = [];
 550           if (relationsGrid) relationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 551           if (multiRelationsGrid) multiRelationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 552       }
 553
 554       private function resetRelationsGrid(entity:Entity):void {
 555           removeRelationListeners();
 556
 557           var instance:DataGrid=relationsGrid;
 558           if (entity is EntityCollection) instance=multiRelationsGrid;
 559           var memberships:Array = entity.getRelationMemberships();
 560           for each (var m:Object in memberships) {
 561               m.relation.addEventListener(Connection.TAG_CHANGED, relationTagChanged);
 562               m.relation.addEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 563               m.relation.addEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 564               listeningToRelations.push(m.relation);
 565           }
 566           instance.dataProvider = memberships;
 567           instance.addEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged, false, -100);
 568       }
 569
 570       private function relationRoleChanged(event:DataGridEvent):void {
 571                 if (event.dataField != 'role') { return; }      // shouldn't really happen
 572
 573                 var relations:Array=event.currentTarget.dataProvider.toArray();
 574                 var props:Object=relations[event.rowIndex];
 575
 576                 var relation:Relation=props['relation'];
 577                 var newRole:String=event.itemRenderer.data['role'];
 578
 579                 if (selectedEntity is EntityCollection) {
 580                         for each (var entity:Entity in EntityCollection(selectedEntity).entities) {
 581                                 var indexes:Array=relation.findEntityMemberIndexes(entity);
 582                                 for each (var index:int in indexes) {
 583                                         relation.setMember(index, new RelationMember(entity,newRole), MainUndoStack.getGlobalStack().addAction);
 584                                 }
 585                         }
 586                 } else {
 587                         relation.setMember(props['index'], new RelationMember(selectedEntity,newRole), MainUndoStack.getGlobalStack().addAction);
 588                 }
 589       }
 590
 591       private function relationTagChanged(event:TagEvent):void {
 592           resetRelationsGrid(selectedEntity);
 593       }
 594
 595       private function entityRelationMemberChanged(event:RelationMemberEvent):void {
 596           resetRelationsGrid(selectedEntity);
 597       }
 598
 599       private function checkMembers():void {
 600           if (selectedEntity is Relation) {
 601             setupMembers(selectedEntity as Relation);
 602           }
 603       }
 604
 605       private function setupMembers(rel:Relation):void {
 606           var members:Array = [];
 607           for (var i:int=0 ; i<rel.length; i++) {
 608             var props:Object = {};
 609             var member:RelationMember = rel.getMember(i);
 610             props["id"] = member.entity.id;
 611             props["type"] = member.entity.getType();
 612             props["role"] = member.role;
 613
 614             members.push(props);
 615           }
 616           membersGrid.dataProvider = members;
 617           membersGrid.dataProvider.addEventListener('collectionChange', membersChange);
 618       }
 619
 620       private function membersChange(event:Event):void {
 621           // Dropping all the members and re-adding them isn't exactly optimal
 622           // but is at least robust for any kind of change.
 623           // Figuring out a better way is someone else's FIXME
 624
 625           var conn:Connection = Connection.getConnectionInstance();
 626           var rel:Relation = selectedEntity as Relation
 627           var action:CompositeUndoableAction = new CompositeUndoableAction("Rearrange relation members for "+rel);
 628
 629           // drop members
 630           for (var i:int=rel.length-1 ; i>=0; i--) {
 631             rel.removeMemberByIndex(i, action.push);
 632           }
 633
 634           // add members in new order
 635           for each(var memberObject:Object in membersGrid.dataProvider) {
 636             var e:Entity;
 637             var id:Number = memberObject.id;
 638             if(memberObject.type == 'node') {
 639               e = conn.getNode(id);
 640             } else if (memberObject.type == 'way') {
 641               e = conn.getWay(id);
 642             } else if (memberObject.type == 'relation') {
 643               e = conn.getRelation(id);
 644             }
 645             rel.appendMember(new RelationMember(e, memberObject.role), action.push);
 646           }
 647           MainUndoStack.getGlobalStack().addAction(action);
 648       }
 649
 650       private function editRelation(id:Number):void {
 651           var panel:RelationEditorPanel = RelationEditorPanel(
 652               PopUpManager.createPopUp(Application(Application.application), RelationEditorPanel, true));
 653           panel.setRelation(Connection.getConnectionInstance().getRelation(id));
 654           PopUpManager.centerPopUp(panel);
 655       }
 656
 657         /** Create relation actions menu */
 658
 659         public function createRelationMenu(button:PopUpButton):void {
 660                 var menu:Menu = new Menu();
 661                 var dp:Object = [ {label: "Select all members"},
 662                                                   {label: "Deselect all members"},
 663                                                   {label: "Add selection to this relation", enabled: false},
 664                                                   {label: "Delete relation"} ];
 665                 menu.dataProvider = dp;
 666                 menu.addEventListener("itemClick", selectRelationMenu);
 667                 button.popUp = menu;
 668         }
 669
 670         /** Enable 'add selection to...' entry only if some of the selection isn't in the relation.
 671             Called each time the menu is clicked. */
 672
 673         public function updateRelationMenu(event:Event):void {
 674                 rowData=event.target.parent.data;       // this makes it accessible from selectRelationMenu
 675                 var menu:Menu = Menu(event.target.popUp);
 676                 var enable:Boolean = false;
 677                 if (selectedEntity != null && selectedEntity is EntityCollection) {
 678                         // Enable only if some entities aren't a member of the relation
 679                         enable=!rowData.universal;
 680                 }
 681                 if (enable==menu.dataProvider[2].enabled) return;
 682                 menu.dataProvider[2].enabled=enable;
 683                 menu.invalidateList();
 684         }
 685
 686         /** Do the action selected in the relation actions menu */
 687
 688         public function selectRelationMenu(event:MenuEvent):void {
 689                 var rel:Relation=rowData.relation;
 690                 var entities:Array;
 691                 var controller:EditController=Application.application.theController;
 692                 switch (event.index) {
 693                         case 0: // Select all members
 694                                 entities=selectedEntity.entities.concat(rel.memberEntities);
 695                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return arr.indexOf(e) == i } );      // remove duplicates
 696                                 // ** FIXME: This is a really horrible way of changing the controller state
 697                                 controller.setState(controller.findStateForSelection(entities));
 698                                 break;
 699
 700                         case 1: // Deselect all members
 701                                 entities=selectedEntity.entities;
 702                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return !e.hasParent(rel) } );
 703                                 controller.setState(controller.findStateForSelection(entities));
 704                                 break;
 705
 706                         case 2: // Add selection to this relation
 707                                 var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 708                                 for each (var entity:Entity in selectedEntity.entities) {
 709                                         if (!entity.hasParent(rel)) {
 710                                                 rel.appendMember(new RelationMember(entity,''), undo.push);
 711                                         }
 712                                 }
 713                                 MainUndoStack.getGlobalStack().addAction(undo);
 714                                 break;
 715
 716                         case 3: // Delete relation
 717                                 Alert.show("Do you really want to delete the relation?","Are you sure?",Alert.YES | Alert.CANCEL,null,
 718                                         function(event:CloseEvent):void {
 719                                                 if (event.detail==Alert.CANCEL) return;
 720                                                 rel.remove(MainUndoStack.getGlobalStack().addAction);
 721                                         } );
 722                                 break;
 723                 }
 724         }
 725
 726       private function tagChanged(event:TagEvent):void {
 727           refreshFeatureIcon();
 728       }
 729
 730       public function loadFeatures():void {
 731           mapFeatures = MapFeatures.getInstance();
 732           stack.removeChild(membersVBox); // remove by default, will be added if relation
 733       }
 734
 735       /** Open up a new browser page, showing the help page as defined in Map Features XML file .*/
 736       public function openDescription():void {
 737           if ( feature != null && feature.hasHelpURL() )
 738               navigateToURL(new URLRequest(feature.helpURL), "potlatch_help");
 739       }
 740
 741       /** Open up a new browser page showing OSM's view of the current entity. */
 742       public function openEntityPage():void {
 743           if (selectedEntity != null && selectedEntity.id >= 0) {
 744               // This is slightly hard-coded, but not drastically. The ../s could be changed for string manipulation of the apiBase
 745               var urlBase:String = Connection.getConnectionInstance().apiBase + '../../browse/'
 746               navigateToURL(new URLRequest(urlBase+selectedEntity.getType()+'/'+selectedEntity.id), "potlatch_browse");
 747           }
 748       }
 749
 750       public function addToRelation():void {
 751           new RelationSelectPanel().init(selectedEntity,new Object());
 752       }
 753
 754       private function removeFromRelation(id:Number, index:int=-1):void {
 755                 var rel:Relation=Connection.getConnectionInstance().getRelation(id);
 756                 if (index>-1) {
 757                         rel.removeMemberByIndex(index, MainUndoStack.getGlobalStack().addAction);
 758                 } else if (selectedEntity is EntityCollection) {
 759                         var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 760                         for each (var e:Entity in EntityCollection(selectedEntity).entities) rel.removeMember(e,undo.push);
 761                         MainUndoStack.getGlobalStack().addAction(undo);
 762                 }
 763       }
 764
 765       public function changeFeatureType(event:Event):void {
 766           if ( selectedEntity == null )
 767               return;
 768
 769           UIComponent.suspendBackgroundProcessing();
 770           var newFeature:Feature = currentCategorySelector.selectedType;
 771           var undoStack:Function = MainUndoStack.getGlobalStack().addAction;
 772           var action:CompositeUndoableAction = new CompositeUndoableAction(
 773                   "Set "+selectedEntity.getType()+" "+selectedEntity.id+" to "+newFeature.name);
 774                   selectedEntity.suspend();
 775
 776           // remove tags from the current feature
 777           if ( feature != null ) {
 778               for each( var oldtag:Object in feature.tags ) {
 779                   selectedEntity.setTag(oldtag["k"], null, action.push);
 780               }
 781           }
 782
 783           // set tags for new feature
 784           if ( newFeature != null ) {
 785               for each( var newtag:Object in newFeature.tags ) {
 786                   selectedEntity.setTag(newtag["k"], newtag["v"], action.push);
 787               }
 788           }
 789
 790                   selectedEntity.resume();
 791           undoStack(action);
 792           popupChange.close();
 793           initialiseEditors();
 794           UIComponent.resumeBackgroundProcessing();
 795       }
 796
 797         private function resizePOIGrid(event:Event):void {
 798                 var rows:Number=event.target.dataProvider.length/event.target.columnCount;
 799                 if (rows!=Math.floor(rows)) { rows=Math.floor(rows+1); }
 800                 event.target.height=rows*(event.target.rowHeight+1);
 801         }
 802   ]]></mx:Script>
 803 </mx:VBox>
 804