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 </mx:ViewStack>
 215
 216   <fx:Script><![CDATA[
 217       import net.systemeD.halcyon.connection.*;
 218       import net.systemeD.halcyon.MapPaint;
 219       import net.systemeD.potlatch2.mapfeatures.*;
 220       import net.systemeD.potlatch2.utils.*;
 221       import net.systemeD.controls.CollapsiblePanel;
 222
 223       import mx.collections.*;
 224       import mx.containers.*;
 225       import mx.events.*;
 226       import mx.core.*;
 227       import mx.managers.PopUpManager;
 228       import mx.controls.Menu;
 229       import mx.controls.Alert;
 230       import flash.geom.Point;
 231       import flash.net.*;
 232       import mx.events.DragEvent;
 233       import mx.managers.DragManager;
 234       import mx.core.DragSource;
 235       import mx.controls.TabBar;
 236 //    import flexlib.containers.SuperTabNavigator;
 237
 238       [Bindable] [Embed(source="../../../embedded/tab_basic.png"       )] private var tabIconBasic:Class;
 239       [Bindable] [Embed(source="../../../embedded/tab_address.png"     )] private var tabIconAddress:Class;
 240       [Bindable] [Embed(source="../../../embedded/tab_cycle.png"       )] private var tabIconCycle:Class;
 241       [Bindable] [Embed(source="../../../embedded/tab_details.png"     )] private var tabIconDetails:Class;
 242       [Bindable] [Embed(source="../../../embedded/tab_restrictions.png")] private var tabIconRestrictions:Class;
 243       [Bindable] [Embed(source="../../../embedded/tab_transport.png"   )] private var tabIconTransport:Class;
 244       [Bindable] [Embed(source="../../../embedded/tab_walk.png"        )] private var tabIconWalk:Class;
 245       private var tabIcons:Object= { Basic:tabIconBasic, Details:tabIconDetails, Address:tabIconAddress, Walk:tabIconWalk, Cycle:tabIconCycle,
 246                                          Transport:tabIconTransport, Restrictions:tabIconRestrictions};
 247
 248       [Bindable]
 249       public var dndPrompt:String="Add new points by dragging them onto the map";
 250
 251       private var editorStackTabNavigator:TabNavigator;
 252       private var editorStackAccordion:Accordion;
 253       [Bindable] private var editorStack:Container;
 254
 255       public var mapFeatures:MapFeatures;
 256       private var selectedEntity:Entity;
 257       private var connection:Connection;
 258       private var currentCategorySelector:CategorySelector;
 259       private var categorySelectors:Object = {};        // hash of categorySelectors for each limitType
 260       private var feature:Feature = null;
 261
 262       private var rowData:Object;               // relation membership reference, needed so it's accessible from relation actions menu
 263
 264           public function setEntity(entities:Array, layer:MapPaint=null):void {
 265                 UIComponent.suspendBackgroundProcessing();
 266                 connection=null;
 267
 268                 var firstSelected:Entity=null;
 269                 if (entities.length==1) { firstSelected=entities[0]; }
 270
 271                 if (selectedEntity!=firstSelected && selectedEntity!=null) {
 272                         selectedEntity.removeEventListener(Connection.TAG_CHANGED, tagChanged);
 273                         selectedEntity.removeEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 274                         selectedEntity.removeEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 275                 }
 276
 277                 if (entities.length==0) {
 278                         // Nothing selected, so show drag-and-drop panel
 279                         sidebar.selectedChild = dndPanel;
 280
 281                 } else if (entities.length==1) {
 282                         // Single entity selected, so show tag panel
 283                         selectedEntity=firstSelected;
 284                         connection=firstSelected.connection;
 285                         if (selectedEntity!=null) { selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged); }
 286                         if (advancedID!=null) { setupAdvanced(firstSelected); }
 287                         if (firstSelected is Relation) { stack.addChild(membersVBox); }
 288             if (selectedEntity is Marker && connection is BugConnection) {
 289               bugPanelContents.init(selectedEntity, BugConnection(connection));
 290               sidebar.selectedChild = bugPanel;
 291             } else if (selectedEntity is Marker) {
 292               markerPanelContents.init(selectedEntity, layer);
 293               sidebar.selectedChild = markerPanel;
 294             } else if (connection is SnapshotConnection) {
 295               backgroundPanelContents.init(selectedEntity, layer);
 296               sidebar.selectedChild = backgroundPanel;
 297             } else {
 298               refreshFeatureIcon();
 299               initialiseEditors();
 300               sidebar.selectedChild = tagsPanel;
 301             }
 302
 303                 } else if(isMultipleEditable(entities)) {
 304                         selectedEntity = new EntityCollection(entities);
 305                         selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged);
 306             sidebar.selectedChild = multiplePanel;
 307                         setupMultiAdvanced(selectedEntity);
 308                         connection=entities[0].connection;
 309
 310                 } else {
 311                         //The selection contains elements which can't be edited all together.
 312                         sidebar.selectedChild = multipleInvalidPanel;
 313                 }
 314                 UIComponent.resumeBackgroundProcessing();
 315       }
 316
 317       private function refreshFeatureIcon():void {
 318           var oldFeature:Feature = feature;
 319           feature = selectedEntity == null ? null : mapFeatures.findMatchingFeature(selectedEntity);
 320           if ( feature != oldFeature ) {
 321               if ( oldFeature != null )
 322                   oldFeature.removeEventListener("imageChanged", featureImageChanged);
 323               if ( feature != null )
 324                   feature.addEventListener("imageChanged", featureImageChanged);
 325           }
 326           setCategorySelector(selectedEntity, feature);
 327       }
 328
 329       private function featureImageChanged(event:Event):void {
 330           setCategorySelector(selectedEntity, feature);
 331       }
 332
 333       /** Set the icon, categorySelector and help text for the current entity. */
 334       private function setCategorySelector(entity:Entity, feature:Feature):void {
 335                         // Remove the "user has selected something" event listener from previous categorySelector,
 336                         // and make it invisible because Flex is crap at updating click areas otherwise
 337                         if (currentCategorySelector) {
 338                                 currentCategorySelector.removeEventListener("selectedType", changeFeatureType);
 339                                 currentCategorySelector.visible=false;
 340                         }
 341
 342                         // Have we cached the categorySelector for this limitType? If not, create one
 343                         var lt:String=limitType(entity);
 344                         if (!categorySelectors[lt]) {
 345                                 categorySelectors[lt]=new CategorySelector();
 346                                 categorySelectors[lt].setLimitTypes(lt);
 347                         }
 348                         currentCategorySelector=categorySelectors[lt];
 349                         currentCategorySelector.addEventListener("selectedType", changeFeatureType, false, 0, true);
 350
 351                         // Update surrounding icon/text display
 352                         if (feature) {
 353                                 iconImage.source = feature.image;
 354                                 iconText.htmlText = feature.htmlDetails(entity);
 355                                 popupChange.label = feature.name;
 356                                 helpLabel.visible = feature.hasHelpURL();
 357                                 currentCategorySelector.setSelectedFeature(feature);
 358                         } else {
 359                                 iconImage.source = null;
 360                                 popupChange.label = "unknown";
 361                                 helpLabel.visible = false;
 362                                 if (entity==null) {
 363                                         iconText.htmlText = "<i>Nothing selected</i>";
 364                                 } else if (entity.hasTags()) {
 365                                         iconText.htmlText = "<b>Not recognised</b><br/><font size='10pt'>Try looking at the tags under the advanced properties</font>";
 366                                 } else {
 367                                         iconText.htmlText = "<b>No tags set</b><br/><font size='10pt'>Please use the menu below to define what this "+entity.getType()+" is</font>";
 368                                 }
 369                                 currentCategorySelector.setSelectedFeature(null);
 370                         }
 371
 372                         // Set it as the popup, and make sure it's visible
 373                         popupChange.popUp=currentCategorySelector;
 374                         currentCategorySelector.visible=true;
 375       }
 376
 377           private function isMultipleEditable(entities:Array):Boolean {
 378                 for each(var entity:Entity in entities) {
 379                         if(!(entity is Node || entity is Way))
 380                                 return false;
 381                 }
 382                 return true;
 383           }
 384
 385       private function limitType(entity:Entity):String {
 386           if      (entity is Node    ) return "point";
 387           else if (entity is Way     ) return Way(entity).isArea() ? "area" : "line";
 388           else if (entity is Relation) return "relation";
 389           return null;
 390       }
 391
 392       private var tabComponents:Object = {};
 393       private var subpanelComponents:Object = {};
 394
 395       private function initialiseEditors():void {
 396                 editorStack.removeAllChildren();
 397                 if ( selectedEntity == null || feature == null )
 398                         return;
 399
 400                 var basicEditorBox:VBox = createEditorBox();
 401                 basicEditorBox.label = "Basic";
 402                 basicEditorBox.icon=tabIconBasic;
 403                 editorStack.addChild(basicEditorBox);
 404
 405                 var tabs:Object = {};
 406                 var tabList:Array = [];
 407                 tabComponents = {};
 408                 var subpanels:Object = {};
 409                 subpanelComponents = {};
 410
 411                 // First create the tabs
 412                 for each (var factory:EditorFactory in feature.editors) {
 413                         var category:String = factory.category;
 414                         if (category!='') {
 415                                 var tab:VBox = tabs[category];
 416                                 if ( tab == null) {
 417                                         tab = createEditorBox();
 418                                         tab.label = category;
 419                                         if (tabIcons[category]) tab.icon=tabIcons[category];
 420                                         tabs[category] = tab;
 421                                         tabList.push(tab);
 422                                 }
 423                         }
 424                 }
 425
 426                 // Put the tabs on-screen in order
 427                 tabList.sort(sortCategories,16);
 428                 for each (tab in tabList) {
 429                         editorStack.addChild(tab);
 430                         tabComponents[tab] = [];
 431                 }
 432
 433                 // Then add the individual editors to them
 434                 for each (factory in feature.editors) {
 435
 436                         // Add to basic editor box first
 437                         if ( factory.presence.isEditorPresent(factory, selectedEntity, null) ) {
 438                                 var editor:DisplayObject = factory.createEditorInstance(selectedEntity);
 439                                 if (editor) basicEditorBox.addChild(editor);
 440                         }
 441
 442                         // Then prepare to add to category panel
 443                         category=factory.category;
 444                         if (factory.category=='') continue;
 445                         var catEditor:DisplayObject = factory.createEditorInstance(selectedEntity);
 446                         if (!catEditor) continue;
 447                         tab=tabs[category];
 448
 449                         // Create subcategory panel if needed
 450                         if (factory.subcategory) {
 451                                 var subcategory:String = factory.subcategory;
 452                                 if (!subpanels[category]) { subpanels[category]={}; }
 453                                 var subpanel:CollapsiblePanel = subpanels[category][subcategory];
 454                                 if (!subpanel) {
 455                                         subpanel=new CollapsiblePanel(false);
 456                                         subpanel.percentWidth=100;
 457                                         subpanel.styleName="subcategoryPanel";
 458                                         subpanel.title=subcategory;
 459                                         subpanels[category][subcategory]=subpanel;
 460                                         tabComponents[tab].push(subpanel);
 461                                 }
 462                                 subpanel.addChild(catEditor);
 463                         } else {
 464                                 tabComponents[tab].push(catEditor);
 465                         }
 466                 }
 467       }
 468
 469         // ** FIXME: Order probably shouldn't be hard-coded, but configurable
 470         private static var categoryOrder:Array=["Restrictions","Transport","Cycle","Walk","Address","Details"]; // reverse order
 471         private function sortCategories(a:VBox,b:VBox):int {
 472                 var a1:int=categoryOrder.indexOf(a.label);
 473                 var a2:int=categoryOrder.indexOf(b.label);
 474                 if (a1<a2) { return 1; }
 475                 else if (a1>a2) { return -1; }
 476                 return 0;
 477         }
 478
 479       private function createEditorBox():VBox {
 480           var box:VBox = new VBox();
 481           box.percentWidth = 100;
 482           box.percentHeight = 100;
 483           box.styleName = "dndEditorContainer";
 484           return box;
 485       }
 486
 487       private function ensureEditorsPopulated(tab:VBox):void {
 488           var components:Array = tabComponents[tab];
 489           if ( components == null || tab == null || tab.numChildren >= components.length )
 490               return;
 491           for each (var component:DisplayObject in components ) {
 492               tab.addChild(component);
 493           }
 494       }
 495
 496         private function initEditorStackUIs():void {
 497                 editorStackTabNavigator = new TabNavigator();
 498 //              editorStackTabNavigator.allowTabSqueezing=false;
 499 //              editorStackTabNavigator.minTabWidth=10;
 500 //              editorStackTabNavigator.closePolicy="close_never";
 501 //              editorStackTabNavigator.scrollSpeed=20;
 502                 editorStackTabNavigator.creationPolicy="auto";
 503                 editorStackTabNavigator.percentWidth=100;
 504                 editorStackTabNavigator.percentHeight=100;
 505                 editorStackTabNavigator.styleName="dndStackTab";
 506 //              editorStackTabNavigator.popUpButtonPolicy="off"
 507
 508
 509                 editorStackAccordion = new Accordion();
 510                 editorStackAccordion.percentWidth=100;
 511                 editorStackAccordion.percentHeight=100;
 512                 editorStackAccordion.creationPolicy="auto";
 513                 editorStackAccordion.styleName="dndStackAccordion";
 514                 /* FIXME: the accordion icons should be right-aligned. See:
 515                 http://www.kristoferjoseph.com/blog/2008/11/06/positioning-the-flex-accordion-header-icon
 516                 http://blog.flexexamples.com/2007/09/13/changing-text-alignment-in-an-flex-accordion-header/
 517                 */
 518
 519                 setEditorStackUI(true);
 520         }
 521
 522         private function setEditorStackUI(isTabbed:Boolean):void {
 523                 var children:Array=[]; var i:uint;
 524
 525                 if (editorStack) {
 526                         // blank existing component
 527                         editorStack.removeEventListener("change",editorStackUIChange);
 528                         editorStack.removeEventListener("updateComplete",editorStackUIUpdate);
 529                         editorStack.removeAllChildren();
 530                         editorContainer.removeChildAt(1);
 531                 }
 532
 533                 // replace with new component
 534                 editorStack = (isTabbed ? editorStackTabNavigator : editorStackAccordion) as Container;
 535                 editorContainer.addChild(editorStack);
 536
 537                 // re-add children and listeners
 538                 initialiseEditors();
 539                 editorStack.addEventListener("change",editorStackUIChange);
 540                 editorStack.addEventListener("updateComplete",editorStackUIUpdate);
 541         }
 542
 543         private function editorStackUIChange(event:Event):void {
 544                 ensureEditorsPopulated(IndexChangedEvent(event).relatedObject as VBox);
 545         }
 546
 547         private function editorStackUIUpdate(event:Event):void {
 548                 if (editorStack is TabNavigator) {
 549                         var e:TabNavigator = editorStack as TabNavigator;
 550                         if (e.selectedIndex<0) { return; }
 551                         for (var i:uint=0; i<e.numChildren; i++) {
 552                                 e.getTabAt(i).selected=(i==e.selectedIndex);
 553                         }
 554                 }
 555         }
 556
 557
 558         public function togglePanel():void {
 559                 if (stack.selectedChild==editorContainer && selectedEntity!=null) {
 560                         stack.selectedChild=advancedContainer;
 561                 } else if (stack.selectedChild!=editorContainer) {
 562                         stack.selectedChild=editorContainer;
 563                 }
 564         }
 565
 566         public function selectAdvancedPanel():void {
 567                 checkAdvanced();
 568                 stack.selectedChild=advancedContainer;
 569         }
 570
 571       private function checkAdvanced():void {
 572           if ( selectedEntity != null )
 573              setupAdvanced(selectedEntity);
 574       }
 575
 576       private var listeningToRelations:Array = [];
 577
 578       private function setupAdvanced(entity:Entity):void {
 579                 if (!advancedTagGrid) advancedContainer.createComponentsFromDescriptors();      // if Flex hasn't created it, force it
 580                 advancedTagGrid.init(entity);
 581
 582                 if ( entity == null ) {
 583                         advancedID.htmlText = "";
 584                 } else {
 585                         var entityText:String = "xx";
 586                         if      ( entity is Node     ) entityText = "Node";
 587                         else if ( entity is Way      ) entityText = "Way";
 588                         else if ( entity is Relation ) entityText = "Relation";
 589                         advancedID.htmlText = entityText+": <b>"+entity.id+"</b>";
 590                 }
 591
 592                 removeRelationListeners();
 593
 594                 if ( entity == null ) {
 595                         relationsGrid.dataProvider = null;
 596                 } else {
 597                         resetRelationsGrid(entity);
 598                         entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 599                         entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 600                 }
 601       }
 602
 603           private function setupMultiAdvanced(entity:Entity):void {
 604                 multiAdvancedTagGrid.init(entity);
 605                 resetRelationsGrid(entity);
 606                 entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation, false, 0, true);
 607                 entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation, false, 0, true);
 608       }
 609
 610           public function addNewTag():void {
 611                 if (stack.selectedChild!=advancedContainer) { return; }
 612                 advancedTagGrid.addNewTag();
 613           }
 614
 615       private function addedToRelation(event:RelationMemberEvent):void {
 616          resetRelationsGrid(selectedEntity);
 617       }
 618
 619       private function removedFromRelation(event:RelationMemberEvent):void {
 620          resetRelationsGrid(selectedEntity);
 621       }
 622
 623       private function removeRelationListeners():void {
 624           for each( var rel:Relation in listeningToRelations ) {
 625               rel.removeEventListener(Connection.TAG_CHANGED, relationTagChanged);
 626               rel.removeEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 627               rel.removeEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 628           }
 629           listeningToRelations = [];
 630           if (relationsGrid) relationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 631           if (multiRelationsGrid) multiRelationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 632       }
 633
 634       private function resetRelationsGrid(entity:Entity):void {
 635           removeRelationListeners();
 636
 637           var instance:DataGrid=relationsGrid;
 638           if (entity is EntityCollection) instance=multiRelationsGrid;
 639           var memberships:Array = entity.getRelationMemberships();
 640           for each (var m:Object in memberships) {
 641               m.relation.addEventListener(Connection.TAG_CHANGED, relationTagChanged);
 642               m.relation.addEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 643               m.relation.addEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 644               listeningToRelations.push(m.relation);
 645           }
 646           instance.dataProvider = memberships;
 647           instance.addEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged, false, -100);
 648       }
 649
 650       private function relationRoleChanged(event:DataGridEvent):void {
 651                 if (event.dataField != 'role') { return; }      // shouldn't really happen
 652
 653                 var relations:Array=event.currentTarget.dataProvider.toArray();
 654                 var props:Object=relations[event.rowIndex];
 655
 656                 var relation:Relation=props['relation'];
 657                 var newRole:String=event.itemRenderer.data['role'];
 658
 659                 if (selectedEntity is EntityCollection) {
 660                         for each (var entity:Entity in EntityCollection(selectedEntity).entities) {
 661                                 var indexes:Array=relation.findEntityMemberIndexes(entity);
 662                                 for each (var index:int in indexes) {
 663                                         relation.setMember(index, new RelationMember(entity,newRole), MainUndoStack.getGlobalStack().addAction);
 664                                 }
 665                         }
 666                 } else {
 667                         relation.setMember(props['index'], new RelationMember(selectedEntity,newRole), MainUndoStack.getGlobalStack().addAction);
 668                 }
 669       }
 670
 671       private function relationTagChanged(event:TagEvent):void {
 672           resetRelationsGrid(selectedEntity);
 673       }
 674
 675       private function entityRelationMemberChanged(event:RelationMemberEvent):void {
 676           resetRelationsGrid(selectedEntity);
 677       }
 678
 679       private function checkMembers():void {
 680           if (selectedEntity is Relation) {
 681             setupMembers(selectedEntity as Relation);
 682           }
 683       }
 684
 685       private function setupMembers(rel:Relation):void {
 686           var members:Array = [];
 687           for (var i:int=0 ; i<rel.length; i++) {
 688             var props:Object = {};
 689             var member:RelationMember = rel.getMember(i);
 690             props["id"] = member.entity.id;
 691             props["type"] = member.entity.getType();
 692             props["role"] = member.role;
 693
 694             members.push(props);
 695           }
 696           membersGrid.dataProvider = members;
 697           membersGrid.dataProvider.addEventListener('collectionChange', membersChange);
 698       }
 699
 700       private function membersChange(event:Event):void {
 701           // Dropping all the members and re-adding them isn't exactly optimal
 702           // but is at least robust for any kind of change.
 703           // Figuring out a better way is someone else's FIXME
 704
 705           var rel:Relation = selectedEntity as Relation;
 706           var action:CompositeUndoableAction = new CompositeUndoableAction("Rearrange relation members for "+rel);
 707
 708           // drop members
 709           for (var i:int=rel.length-1 ; i>=0; i--) {
 710             rel.removeMemberByIndex(i, action.push);
 711           }
 712
 713           // add members in new order
 714           for each(var memberObject:Object in membersGrid.dataProvider) {
 715             var e:Entity;
 716             var id:Number = memberObject.id;
 717                         switch (memberObject.type) {
 718                                 case 'node':            e = connection.getNode(id); break;
 719                 case 'way':                     e = connection.getWay(id); break;
 720                                 case 'relation':        e = connection.getRelation(id); break;
 721             }
 722             rel.appendMember(new RelationMember(e, memberObject.role), action.push);
 723           }
 724           MainUndoStack.getGlobalStack().addAction(action);
 725       }
 726
 727       private function editRelation(id:Number):void {
 728           var panel:RelationEditorPanel = RelationEditorPanel(
 729               PopUpManager.createPopUp(Application(FlexGlobals.topLevelApplication), RelationEditorPanel, true));
 730           panel.setRelation(connection.getRelation(id));
 731           PopUpManager.centerPopUp(panel);
 732       }
 733
 734         /** Create relation actions menu */
 735
 736         public function createRelationMenu(button:PopUpButton):void {
 737                 var menu:Menu = new Menu();
 738                 var dp:Object = [ {label: "Select all members"},
 739                                                   {label: "Deselect all members"},
 740                                                   {label: "Add selection to this relation", enabled: false},
 741                                                   {label: "Delete relation"} ];
 742                 menu.dataProvider = dp;
 743                 menu.addEventListener("itemClick", selectRelationMenu);
 744                 button.popUp = menu;
 745         }
 746
 747         /** Enable 'add selection to...' entry only if some of the selection isn't in the relation.
 748             Called each time the menu is clicked. */
 749
 750         public function updateRelationMenu(event:Event):void {
 751                 rowData=event.target.parent.data;       // this makes it accessible from selectRelationMenu
 752                 var menu:Menu = Menu(event.target.popUp);
 753                 var enable:Boolean = false;
 754                 if (selectedEntity != null && selectedEntity is EntityCollection) {
 755                         // Enable only if some entities aren't a member of the relation
 756                         enable=!rowData.universal;
 757                 }
 758                 if (enable==menu.dataProvider[2].enabled) return;
 759                 menu.dataProvider[2].enabled=enable;
 760                 menu.invalidateList();
 761         }
 762
 763         /** Do the action selected in the relation actions menu */
 764
 765         public function selectRelationMenu(event:MenuEvent):void {
 766                 var rel:Relation=rowData.relation;
 767                 var entities:Array;
 768                 var controller:EditController=FlexGlobals.topLevelApplication.theController;
 769                 switch (event.index) {
 770                         case 0: // Select all members
 771                                 entities=selectedEntity.entities.concat(rel.memberEntities);
 772                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return arr.indexOf(e) == i } );      // remove duplicates
 773                                 // ** FIXME: This is a really horrible way of changing the controller state
 774                                 controller.setState(controller.findStateForSelection(entities));
 775                                 break;
 776
 777                         case 1: // Deselect all members
 778                                 entities=selectedEntity.entities;
 779                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return !e.hasParent(rel) } );
 780                                 controller.setState(controller.findStateForSelection(entities));
 781                                 break;
 782
 783                         case 2: // Add selection to this relation
 784                                 var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 785                                 for each (var entity:Entity in selectedEntity.entities) {
 786                                         if (!entity.hasParent(rel)) {
 787                                                 rel.appendMember(new RelationMember(entity,''), undo.push);
 788                                         }
 789                                 }
 790                                 MainUndoStack.getGlobalStack().addAction(undo);
 791                                 break;
 792
 793                         case 3: // Delete relation
 794                                 Alert.show("Do you really want to delete the relation?","Are you sure?",Alert.YES | Alert.CANCEL,null,
 795                                         function(event:CloseEvent):void {
 796                                                 if (event.detail==Alert.CANCEL) return;
 797                                                 rel.remove(MainUndoStack.getGlobalStack().addAction);
 798                                         } );
 799                                 break;
 800                 }
 801         }
 802
 803       private function tagChanged(event:TagEvent):void {
 804           refreshFeatureIcon();
 805       }
 806
 807       public function loadFeatures():void {
 808           mapFeatures = MapFeatures.getInstance();
 809           stack.removeChild(membersVBox); // remove by default, will be added if relation
 810       }
 811
 812       /** Open up a new browser page, showing the help page as defined in Map Features XML file .*/
 813       public function openDescription():void {
 814           if ( feature != null && feature.hasHelpURL() )
 815               navigateToURL(new URLRequest(feature.helpURL), "potlatch_help");
 816       }
 817
 818       /** Open up a new browser page showing OSM's view of the current entity. */
 819       public function openEntityPage():void {
 820           if (selectedEntity != null && selectedEntity.id >= 0) {
 821               // This is slightly hard-coded, but not drastically. The ../s could be changed for string manipulation of the apiBase
 822               var urlBase:String = connection.apiBase + '../../browse/'
 823               navigateToURL(new URLRequest(urlBase+selectedEntity.getType()+'/'+selectedEntity.id), "potlatch_browse");
 824           }
 825       }
 826
 827       public function addToRelation():void {
 828           new RelationSelectPanel().init(selectedEntity,new Object());
 829       }
 830
 831       private function removeFromRelation(id:Number, index:int=-1):void {
 832                 var rel:Relation=connection.getRelation(id);
 833                 if (index>-1) {
 834                         rel.removeMemberByIndex(index, MainUndoStack.getGlobalStack().addAction);
 835                 } else if (selectedEntity is EntityCollection) {
 836                         var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 837                         for each (var e:Entity in EntityCollection(selectedEntity).entities) rel.removeMember(e,undo.push);
 838                         MainUndoStack.getGlobalStack().addAction(undo);
 839                 }
 840       }
 841
 842       public function changeFeatureType(event:Event):void {
 843           if ( selectedEntity == null )
 844               return;
 845
 846           UIComponent.suspendBackgroundProcessing();
 847           var newFeature:Feature = currentCategorySelector.selectedType;
 848           var undoStack:Function = MainUndoStack.getGlobalStack().addAction;
 849           var action:CompositeUndoableAction = new CompositeUndoableAction(
 850                   "Set "+selectedEntity.getType()+" "+selectedEntity.id+" to "+newFeature.name);
 851                   selectedEntity.suspend();
 852
 853           // remove tags from the current feature
 854           if ( feature != null ) {
 855               for each( var oldtag:Object in feature.tags ) {
 856                   selectedEntity.setTag(oldtag["k"], null, action.push);
 857               }
 858           }
 859
 860           // set tags for new feature
 861           if ( newFeature != null ) {
 862               for each( var newtag:Object in newFeature.tags ) {
 863                   selectedEntity.setTag(newtag["k"], newtag["v"], action.push);
 864               }
 865           }
 866
 867                   selectedEntity.resume();
 868           undoStack(action);
 869           popupChange.close();
 870           initialiseEditors();
 871           UIComponent.resumeBackgroundProcessing();
 872       }
 873
 874         private function resizePOIGrid(event:Event):void {
 875                 var rows:Number=event.target.dataProvider.length/event.target.columnCount;
 876                 if (rows!=Math.floor(rows)) { rows=Math.floor(rows+1); }
 877                 event.target.height=rows*(event.target.rowHeight+1);
 878         }
 879   ]]></fx:Script>
 880 </mx:VBox>
 881