potlatch2.mxml

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <mx:Application
   3         xmlns:mx="http://www.adobe.com/2006/mxml"
   4         xmlns:halcyon="net.systemeD.halcyon.*"
   5         xmlns:potlatch2="net.systemeD.potlatch2.*"
   6         layout="vertical"
   7         horizontalScrollPolicy="off"
   8         verticalScrollPolicy="off"
   9         horizontalAlign="center"
  10         addedToStage="startInit()"
  11         preloader="net.systemeD.potlatch2.Preloader">
  12
  13     <map:LocalizationMap xmlns:map="l10n.map.*" />
  14
  15         <mx:Style source="styles/Application.css"/>
  16
  17     <mx:Glow id="glowImage" duration="100"
  18         alphaFrom="0.3" alphaTo="1.0"
  19         blurXFrom="0.0" blurXTo="5.0"
  20         blurYFrom="0.0" blurYTo="5.0"
  21         color="0xFF8000"/>
  22     <mx:Glow id="unglowImage" duration="100"
  23         alphaFrom="1.0" alphaTo="0.3"
  24         blurXFrom="5.0" blurXTo="0.0"
  25         blurYFrom="5.0" blurYTo="0.0"
  26         color="0xFF8000"/>
  27     <mx:WipeLeft id="wipeOut" duration="250"/>
  28     <mx:WipeRight id="wipeIn" duration="250"/>
  29
  30     <mx:ApplicationControlBar dock="true">
  31         <mx:PopUpButton id="bgButton" label="Background" openAlways="true" styleName="appBarButton"
  32             creationComplete="bgButton.popUp = new BackgroundSelector();"/>
  33         <mx:PopUpButton id="styleButton" label="Map Style" openAlways="true" styleName="appBarButton"
  34             creationComplete="styleButton.popUp = new StyleSelector();"/>
  35                 <mx:PopUpMenuButton id="gpsButton" styleName="appBarButton"
  36                     itemClick="if (event.index==0) { trackLoader.load(); }
  37                           else if (event.index==1) { new MyGpxDialog().init(); }
  38                                               else { mx.controls.Menu(gpsButton.popUp).selectedIndex=0;
  39                                                      mx.controls.Menu(gpsButton.popUp).selectedIndex=0; /* Yes, we do need to call it twice */
  40                                                      theMap.removeLayerByName('GPS tracks'); }">
  41                         <mx:dataProvider>
  42                                 <mx:Array>
  43                                         <mx:Object label="GPS data" id="gpsData" />
  44                                         <mx:Object label="My tracks" id="myTracks" />
  45                                         <mx:Object label="Clear" id="clearGps" />
  46                                 </mx:Array>
  47                         </mx:dataProvider>
  48                 </mx:PopUpMenuButton>
  49         <mx:Spacer width="100%"/>
  50         <mx:Button id="undo" label="Undo" click="MainUndoStack.getGlobalStack().undo();" styleName="appBarButton"
  51             enabled="{MainUndoStack.getGlobalStack().canUndo()}"
  52             toolTip="{MainUndoStack.getGlobalStack().getUndoDescription() ? 'Undo '+MainUndoStack.getGlobalStack().getUndoDescription() : 'Undo last action'}" />
  53         <mx:Button id="redo" label="Redo" click="MainUndoStack.getGlobalStack().redo();" styleName="appBarButton"
  54             enabled="{MainUndoStack.getGlobalStack().canRedo()}"
  55             toolTip="{MainUndoStack.getGlobalStack().getRedoDescription() ? 'Redo '+MainUndoStack.getGlobalStack().getRedoDescription() : 'Redo last action'}" />
  56         <mx:Spacer width="100%"/>
  57         <mx:Button id="helpButton" label="Help" click="new HelpDialog().init();" styleName="appBarButton" />
  58         <mx:Button id="optionsButton" label="Options" click="new OptionsDialog().init();" styleName="appBarButton" />
  59         <mx:Button label="Save" icon="@Embed('embedded/upload.svg')" disabledIcon="@Embed('embedded/upload_disabled.svg')" styleName="appBarButton"
  60                         click="SaveManager.saveChanges(theMap.editableLayer.connection);" id="saveButton" enabled="false"/>
  61     </mx:ApplicationControlBar>
  62
  63     <mx:HDividedBox width="100%" height="100%">
  64
  65           <!-- Tag viewer -->
  66           <potlatch2:TagViewer width="25%" height="100%" id="tagViewer"/>
  67
  68       <mx:Canvas width="75%" height="100%">
  69         <mx:Canvas id="map_area" resize="onResizeMap()"
  70             top="0" left="0" width="100%" height="100%" dragEnter="dragEnterHandler(event);" dragDrop="dragDropHandler(event);">
  71         </mx:Canvas>
  72         <mx:Image source="@Embed('embedded/zoomIn.svg')" right="3" top="3" click="theMap.zoomIn();"
  73             rollOverEffect="glowImage" rollOutEffect="unglowImage" toolTip="{'Zoom in - currently z'+getScale()}" />
  74         <mx:Image source="@Embed('embedded/zoomOut.svg')" right="3" top="20" click="theMap.zoomOut();"
  75             rollOverEffect="glowImage" rollOutEffect="unglowImage" toolTip="{'Zoom out - currently z'+getScale()}" />
  76         <mx:Image source="@Embed('embedded/search.svg')" right="3" top="40" click="new FindDialog().init();"
  77             rollOverEffect="glowImage" rollOutEffect="unglowImage" toolTip="Find place" />
  78         <mx:TextArea id="dataWorking" text="" right="20" top="3" disabledColor="black" backgroundDisabledColor="0xFFFFEA" height="18"
  79             enabled="false" borderThickness="0"
  80             showEffect="{wipeIn}" hideEffect="{wipeOut}"/>
  81         <mx:TextArea id="coordsbox" left="0" top="0" disabledColor="black" backgroundDisabledColor="0xFFFFEA" height="33"
  82             width="57" enabled="false" borderThickness="0" visible="false"/>
  83
  84     </mx:Canvas>
  85
  86     </mx:HDividedBox>
  87
  88         <mx:Script><![CDATA[
  89                 import net.systemeD.halcyon.*;
  90                 import net.systemeD.halcyon.connection.*;
  91                 import net.systemeD.potlatch2.*;
  92                 import net.systemeD.potlatch2.save.SaveManager;
  93                 import net.systemeD.potlatch2.find.*;
  94                 import net.systemeD.potlatch2.collections.*;
  95                 import net.systemeD.potlatch2.controller.*;
  96                 import net.systemeD.potlatch2.help.*;
  97                 import net.systemeD.potlatch2.options.*;
  98                 import net.systemeD.potlatch2.utils.*;
  99         import net.systemeD.potlatch2.mygpx.*;
 100                 import net.systemeD.controls.FloatingAlert;
 101                 import mx.managers.PopUpManager;
 102                 import flash.system.Security;
 103                 import flash.net.*;
 104                 import flash.utils.Timer;
 105                 import flash.events.TimerEvent;
 106                 import flash.events.MouseEvent;
 107                 import flash.display.Sprite;
 108                 import mx.core.IChildList;
 109         import mx.containers.Canvas;
 110                 import mx.core.Application;
 111         import mx.events.DragEvent;
 112         import mx.events.CloseEvent;
 113         import mx.managers.DragManager;
 114         import mx.core.DragSource;
 115         import mx.controls.Alert;
 116         import com.mindspace.l10n.events.LocaleEvent;
 117
 118         public var theMap:Map;
 119         public var theController:EditController;
 120                 public var yahoo:Yahoo;
 121                 public var trackLoader:TrackLoader;
 122                 public var toolbox:Toolbox;
 123         public var bugLoader:BugLoader;
 124         public var bikeShopLoader:BikeShopLoader;
 125
 126                 private var savecount:uint=0;
 127                 private var loadcount:uint=0;
 128                 private var saveLabel:String='Save';
 129                 private var saveTimer:Timer;
 130
 131         include "version.as";
 132
 133                 private function startInit():void {
 134             /* For reasons that I don't yet understand, the en_US locale is the default and doesn't work at all. */
 135             /* Change this to another locale (e.g. fr_FR) to see the differences. */
 136             if (loaderInfo.parameters['locale']) {
 137               dispatchEvent(new LocaleEvent(LocaleEvent.LOAD_LOCALE,loaderInfo.parameters['locale']));
 138             }
 139
 140                         // Load font and don't do anything until that's done
 141                         var loader:Loader = new Loader();
 142                         loader.contentLoaderInfo.addEventListener(Event.COMPLETE, continueInit);
 143                         loader.load(new URLRequest("FontLibrary.swf"));
 144                 }
 145
 146                 private function continueInit(r:Event):void {
 147                         // Set font
 148                         var FontLibrary:Class = r.target.applicationDomain.getDefinition("FontLibrary") as Class;
 149                         Font.registerFont(FontLibrary.DejaVu);
 150
 151                         Globals.vars.map_area = map_area;
 152                         Globals.vars.root = map_area.rawChildren;                       // set up global reference to root level
 153                         var _root:IChildList = map_area.rawChildren;            // convenient local shorthand
 154                         Globals.vars.nocache = loaderInfo.parameters['nocache'] == 'true';
 155                         Globals.vars.flashvars = loaderInfo.parameters;
 156
 157                         // Remember localised Save text, because we change this dynamically
 158                         saveLabel=saveButton.label;
 159
 160                         // populate sharedObject with loaderInfo parameters if supplied
 161                         var obj:SharedObject = SharedObject.getLocal("user_state");
 162                         var objChanged:Boolean = false;
 163                         if (loaderInfo.parameters['tileurl']) {
 164                                 obj.setProperty('background_url',loaderInfo.parameters['tileurl']);
 165                                 obj.setProperty('background_name','Custom');
 166                                 objChanged=true;
 167                         }
 168                         if (loaderInfo.parameters['style']) {
 169                                 obj.setProperty('stylesheet_url',loaderInfo.parameters['style']);
 170                                 obj.setProperty('stylesheet_name','Custom');
 171                                 objChanged=true;
 172                         }
 173                         if (objChanged) { obj.flush(); }
 174
 175                         // map backdrop object
 176             var w:uint = map_area.width;
 177             var h:uint = map_area.height;
 178             var b:Sprite = new Sprite();
 179             b.height=h; b.width=w;
 180             b.graphics.beginFill(0xFFFFEA,100);
 181             b.graphics.drawRect(0,0,w,h);
 182             b.graphics.endFill();
 183                         _root.addChild(b);
 184
 185                         // pass additional parameters to map
 186                         var params:Object={}; var k:String;
 187                         for (k in this.loaderInfo.parameters) params[k]=this.loaderInfo.parameters[k];
 188                         for (k in SharedObject.getLocal('user_state').data) params[k]=SharedObject.getLocal('user_state').data[k];
 189
 190                         // Create map
 191                         theMap=new Map();
 192                         theMap.backdrop=b;
 193             theMap.updateSize(w,h);
 194                         theMap.addEventListener(MapEvent.SCALE, scaleHandler);
 195
 196                         yahoo=new Yahoo(theMap);
 197                         yahoo.hide();
 198                         _root.addChild(yahoo);
 199                         _root.addChild(theMap);
 200
 201                         // Initialise stylesheets
 202                         Stylesheets.instance().init();
 203                         Stylesheets.instance().addEventListener(CollectionEvent.SELECT,
 204                                 function(e:CollectionEvent):void { theMap.editableLayer.setStyle(String(e.data)); }
 205                         );
 206
 207                         // Add core data layer
 208                         var conn:Connection = new XMLConnection("Main", params['api'], params['policy'], params);
 209             conn.addEventListener(Connection.LOAD_STARTED, onDataStart);
 210             conn.addEventListener(Connection.LOAD_COMPLETED, onDataComplete);
 211             conn.addEventListener(Connection.SAVE_STARTED, onDataStart);
 212             conn.addEventListener(Connection.SAVE_COMPLETED, onDataComplete);
 213             conn.addEventListener(Connection.DATA_DIRTY, onDataDirty);
 214             conn.addEventListener(Connection.DATA_CLEAN, onDataClean);
 215                         conn.addEventListener(MapEvent.ERROR, onMapError);
 216                         conn.addEventListener(AttentionEvent.ATTENTION, onAttention);
 217                         conn.addEventListener(AttentionEvent.ALERT, onAlert);
 218                         theMap.addLayer(conn, Stylesheets.instance().selected, false, true);
 219
 220             // Auto-load vector backgrounds from config
 221             theMap.addEventListener(MapEvent.INITIALISED, function(e:Event):void { VectorBackgrounds.instance().init(theMap); });
 222
 223                         // Set start position of map
 224                         // ** FIXME: if lat/lon/zoom aren't supplied, we need to keep the map in a non-loading state
 225                         //           until the user has decided where to start editing (e.g. when the first GPX loads)
 226                         theMap.init(params['lat'], params['lon'], params['zoom']);
 227
 228                         // add attribution/logo sprite
 229                         var overlay:Sprite=new Sprite();
 230                         var attribution:TextField=new TextField();
 231                         attribution.width=220; attribution.height=300;
 232                         attribution.multiline=true;
 233                         attribution.wordWrap=true;
 234                         attribution.selectable=false;
 235                         attribution.defaultTextFormat=new TextFormat("_sans", 9, 0, false, false, false);
 236                         overlay.addChild(attribution);
 237                         var terms:TextField=new TextField();
 238                         terms.width=200; terms.height=15;
 239                         terms.selectable=false;
 240                         terms.defaultTextFormat=new TextFormat("_sans", 9, 0, false, false, true);
 241                         overlay.addChild(terms);
 242                         _root.addChild(overlay);
 243
 244                         // mouse-up handler attached to stage, so the user can release outside the map
 245                         stage.addEventListener(MouseEvent.MOUSE_UP, theMap.mouseUpHandler);
 246                         Globals.vars.map_area.addEventListener(MouseEvent.MOUSE_MOVE, theMap.mouseMoveHandler);
 247                         Globals.vars.map_area.addEventListener(MouseEvent.MOUSE_DOWN, theMap.mouseDownHandler);
 248
 249                         // initialise imagery
 250                         theMap.tileset.blocks=[new RegExp("google","i")];       // hard-coded block on Google tiles
 251                         theMap.tileset.setDimming(params['background_dim']    ==null ? true  : params['background_dim']);
 252                         theMap.tileset.setSharpen(params['background_sharpen']==null ? false : params['background_sharpen']);
 253                         Imagery.instance().init(theMap, overlay, yahoo);
 254                         Imagery.instance().addEventListener(MapEvent.BUMP, bumpHandler);
 255                         Imagery.instance().addEventListener(CollectionEvent.SELECT,
 256                                 function(e:CollectionEvent):void { theMap.tileset.init(e.data, e.data!=''); }
 257                         );
 258
 259                         // keyboard event attached to stage
 260                         stage.addEventListener(KeyboardEvent.KEY_UP, theMap.keyUpHandler);
 261
 262                         // mouse-position listener for co-ordinate display
 263             theMap.addEventListener(MapEvent.MOUSE_MOVE, mouseoverHandler);
 264
 265                         // position toolbox
 266                         toolbox=Toolbox(PopUpManager.createPopUp(this,Toolbox,false));
 267                         toolbox.init(theController);
 268                         toolbox.x=stage.stageWidth-toolbox.width-5;
 269                         toolbox.y=stage.stageHeight-toolbox.height-5;
 270
 271                         // add debug field
 272                         var t:TextField=new TextField();
 273                         t.width=500; t.height=150; t.border=true;
 274                         t.multiline=true;
 275                         _root.addChild(t);
 276                         Globals.vars.debug=t;
 277             t.visible = loaderInfo.parameters["show_debug"] == 'true';
 278                         Globals.vars.root=theMap;       // just for the addDebug function
 279
 280                         // create controller
 281             theController = new EditController(theMap, tagViewer, toolbox);
 282             theController.setActive();
 283                         theController.addEventListener(AttentionEvent.ATTENTION, onAttention);
 284                         theController.addEventListener(AttentionEvent.ALERT, onAlert);
 285
 286             // set the access token from saved cookie
 287             var tokenObject:SharedObject = SharedObject.getLocal("access_token");
 288             conn.setAccessToken(tokenObject.data["oauth_token"], tokenObject.data["oauth_token_secret"]);
 289
 290             // Load any requested GPX track
 291             if (loaderInfo.parameters['gpx']) {
 292                 var id:Number = loaderInfo.parameters['gpx'];
 293                 if (conn.hasAccessToken()) {
 294                     loadTrace(id);
 295                 } else {
 296                     SaveManager.ensureAccess(function ():void { loadTrace(id); }, conn);
 297                 }
 298             }
 299
 300                         // Load arbitrary GPX from provided URL
 301                         if (loaderInfo.parameters['gpx_url']) {
 302
 303                 var gpx_url:String = loaderInfo.parameters['gpx_url'];
 304
 305                 var connection:Connection = new Connection(name, gpx_url, null, null);
 306                 var gpx:GpxImporter=new GpxImporter(connection, theMap, [gpx_url],
 307                                                 function(success:Boolean,message:String=null):void {
 308                                                     if (!success) return;
 309                                                     var paint:MapPaint = theMap.addLayer(connection, "stylesheets/gpx.css");
 310                                                     paint.updateEntityUIs(false, false);
 311                                                     dispatchEvent(new Event("layers_changed"));
 312                                                 }, false);
 313                         }
 314
 315                         // create GPS trackloader
 316                         trackLoader=new TrackLoader(theMap,conn.apiBase);
 317
 318             // Force authentication on startup, if required
 319             // force_auth == force => checks for access token, and displays OAuth panel if needed
 320             var force_auth:String = loaderInfo.parameters["force_auth"];
 321             if (!conn.hasAccessToken() && force_auth == 'force') {
 322               SaveManager.ensureAccess(onAccessChecked, conn);
 323             }
 324
 325             // show help dialog on startup, if required
 326             // show_help == always => on every startup
 327             // show_help == once => show on first startup only
 328             var show_help:String = loaderInfo.parameters["show_help"];
 329
 330             if (show_help == 'always' || (show_help == 'once' && obj.data["help_shown"] != "true")) {
 331               new HelpDialog().init();
 332             }
 333
 334             // Check if Tiger highlighting should be enabled from saved object
 335             Globals.vars.highlightTiger = obj.data['tiger_highlighted'];
 336                 }
 337
 338                 public function onMapError(mapEvent:MapEvent):void {
 339                         var buttons:uint=0;
 340                         if (mapEvent.params.no) { trace("no is set"); }
 341                         if (mapEvent.params.yes             ) buttons|=mx.controls.Alert.YES;
 342                         if (mapEvent.params.no              ) buttons|=mx.controls.Alert.NO;
 343                         if (mapEvent.params.cancel          ) buttons|=mx.controls.Alert.CANCEL;
 344                         if (mapEvent.params.ok || buttons==0) buttons|=mx.controls.Alert.OK;
 345                         trace("showing alert with "+buttons);
 346                         Alert.show(mapEvent.params.message, 'Error', buttons, null, function(closeEvent:CloseEvent):void {
 347                                 switch (closeEvent.detail) {
 348                                         case mx.controls.Alert.CANCEL:  mapEvent.params.cancel(); break; //fixme? this gets called if user presses escape, even if there's no cancel button.
 349                                         case mx.controls.Alert.YES:             mapEvent.params.yes(); break;
 350                                         case mx.controls.Alert.NO:              mapEvent.params.no(); break;
 351                                         default:                                                if (mapEvent.params.ok) mapEvent.params.ok();
 352                                 }
 353                         });
 354                 }
 355
 356                 /** Highlight an entity in response to an 'attention' event */
 357
 358                 public function onAttention(event:AttentionEvent):void {
 359                         var entity:Entity=event.entity;
 360                         if (entity is Relation) {
 361                                 // If it's a relation, just bring up the editor panel
 362                                 var panel:RelationEditorPanel = RelationEditorPanel(
 363                                         PopUpManager.createPopUp(Application(Application.application), RelationEditorPanel, true));
 364                                 panel.setRelation(entity as Relation);
 365                                 PopUpManager.centerPopUp(panel);
 366                                 return;
 367                         }
 368
 369                         var lat:Number, lon:Number;
 370                         var panTo:Boolean=true;
 371                         if (entity is Way) {
 372                                 // If it's a way, find if it's on-screen
 373                                 for (var i:uint=0; i<Way(entity).length; i++) {
 374                                         var node:Node=Way(entity).getNode(i)
 375                                         if (node.within(theMap.edge_l,theMap.edge_r,theMap.edge_t,theMap.edge_b)) { panTo=false; }
 376                                         lat=node.lat; lon=node.lon;
 377                                 }
 378                         } else if (entity is Node) {
 379                                 // If it's a node, check if it's on-screen
 380                                 if (entity.within(theMap.edge_l,theMap.edge_r,theMap.edge_t,theMap.edge_b)) { panTo=false; }
 381                                 lat=Node(entity).lat; lon=Node(entity).lon;
 382                         }
 383                         // Pan if required, and select the object
 384                         if (panTo) { theMap.moveMapFromLatLon(lat,lon); }
 385                         theController.setState(theController.findStateForSelection([entity]));
 386                 }
 387
 388                 /** Display floating warning in response to an 'alert' event */
 389
 390                 public function onAlert(event:AttentionEvent):void {
 391                         var alert:FloatingAlert=new FloatingAlert(event.message);
 392                         stage.addChild(alert);
 393                 }
 394
 395         public function onResizeMap():void {
 396             if ( theMap != null )
 397                 theMap.updateSize(map_area.width, map_area.height);
 398
 399                         if (toolbox) {
 400                                 toolbox.x=Math.min(toolbox.x,stage.stageWidth-toolbox.width-5);
 401                                 toolbox.y=Math.min(toolbox.y,stage.stageHeight-toolbox.height-5);
 402                         }
 403         }
 404                 private function bumpHandler(e:MapEvent):void {
 405                         if (toolbox) {
 406                                 toolbox.y=Math.min(toolbox.y,stage.stageHeight-toolbox.height-10-e.params.y);
 407                         }
 408                 }
 409
 410         private function mouseoverHandler(e:MapEvent):void {
 411             if (coordsbox.visible) {
 412                 coordsbox.text= Number(e.params.x).toFixed(5) + "\n " + Number(e.params.y).toFixed(5); // Not sure if 5 dp's really required.
 413             }
 414         }
 415
 416         private function onDataStart(event:Event):void {
 417                         switch (event.type) {
 418                                 case Connection.LOAD_STARTED:   loadcount++; break;
 419                                 case Connection.SAVE_STARTED:   savecount++; break;
 420                         }
 421                         updateDataWorking();
 422         }
 423         private function onDataComplete(event:Event):void {
 424                         switch (event.type) {
 425                                 case Connection.LOAD_COMPLETED: loadcount--; break;
 426                                 case Connection.SAVE_COMPLETED: savecount--; break;
 427                         }
 428             updateDataWorking();
 429         }
 430                 private function updateDataWorking():void {
 431                         if (loadcount>0 && savecount>0) { dataWorking.text="Loading/saving..."; }
 432                         else if (loadcount>0)           { dataWorking.text="Loading data..."; }
 433                         else if (savecount>0)           { dataWorking.text="Saving data..."; }
 434                         else                            { dataWorking.text=""; }
 435                         dataWorking.visible=(dataWorking.text!="");
 436                 }
 437         private function onDataDirty(event:Event):void {
 438                         saveButton.enabled=true;
 439             if (ExternalInterface.available) {
 440               ExternalInterface.call("markChanged", false);
 441             }
 442                         if (!saveTimer || !saveTimer.running) {
 443                                 saveTimer=new Timer(60*1000,0);
 444                                 saveTimer.addEventListener(TimerEvent.TIMER,saveTimeUpdate);
 445                                 saveTimer.start();
 446                         }
 447                 }
 448                 private function onDataClean(event:Event):void {
 449                         saveButton.enabled=false;
 450             if (ExternalInterface.available) {
 451               ExternalInterface.call("markChanged", true);
 452             }
 453             if (saveTimer && saveTimer.running) {
 454                                 saveTimer.stop();
 455                                 saveTimer.removeEventListener(TimerEvent.TIMER,saveTimeUpdate);
 456                                 saveTimeWrite(0);
 457                         }
 458                 }
 459                 private function saveTimeUpdate(event:TimerEvent):void {
 460                         var timer:Timer=Timer(event.target);
 461                         saveTimeWrite(uint(timer.delay*timer.currentCount/1000/60));
 462                 }
 463                 private function saveTimeWrite(minutes:uint):void {
 464                         if (minutes<5) {
 465                                 saveButton.label=saveLabel;
 466                         } else {
 467                                 saveButton.label=saveLabel+" ("+minutes+"m"+")";
 468                                 if (minutes>=20 && minutes/5==int(minutes/5)) {
 469                                         theController.dispatchEvent(new AttentionEvent(AttentionEvent.ALERT, null, minutes+"m since last save - please save regularly"));
 470                                 }
 471                         }
 472                 }
 473
 474                 private function scaleHandler(event:MapEvent):void {
 475                         dispatchEvent(new Event("rescale"));
 476                 }
 477
 478                 [Bindable(event="rescale")]
 479                 private function getScale():String {
 480                         return String(theMap.scale);
 481                 }
 482
 483         private function dragEnterHandler(event:DragEvent):void {
 484             // Get the drop target component from the event object.
 485             var dropTarget:Canvas=event.currentTarget as Canvas;
 486             // Accept the drag only if the user is dragging poi with tags
 487             if (event.dragSource.hasFormat('tags'))
 488             {
 489                 DragManager.acceptDragDrop(dropTarget);
 490             }
 491         }
 492
 493         private function dragDropHandler(event:DragEvent):void {
 494                         // Deselect the dragged icon
 495                         if (event.dragSource.dataForFormat('container')) {
 496                                 event.dragSource.dataForFormat('container').selectedItem=-1;
 497                         }
 498
 499                         // Get the tags
 500             var tags:Array = event.dragSource.dataForFormat('tags') as Array;
 501
 502             // If you dnd quick enough, this exposes a flex bug and event.stageX/Y become negative.
 503             // Take the mouse positions from a displayObject's stage for consistent results.
 504             var mapLoc:Point = Globals.vars.root.globalToLocal(new Point(event.target.stage.mouseX, event.target.stage.mouseY));
 505             var lat:Number = Globals.vars.root.coord2lat(mapLoc.y);
 506             var lon:Number = Globals.vars.root.coord2lon(mapLoc.x);
 507
 508             var createAction:CompositeUndoableAction = new CompositeUndoableAction("Create POI");
 509
 510                         var conn:Connection = theMap.editableLayer.connection;
 511             var node:Node = conn.createNode({}, lat, lon, createAction.push);
 512             for each ( var tag:Object in tags ) {
 513                 node.setTag(tag.k, tag.v, createAction.push);
 514             }
 515                         conn.registerPOI(node);
 516                         MainUndoStack.getGlobalStack().addAction(createAction);
 517             theController.setState(new SelectedPOINode(node));
 518         }
 519
 520         /* Called when forcing an initial access token check. */
 521         private function onAccessChecked():void {
 522             // Floaty panel message "You now have access";
 523         }
 524
 525         private function loadTrace(id:Number):void {
 526             var conn:Connection = theMap.editableLayer.connection;
 527             conn.addEventListener(Connection.TRACES_LOADED, function (e:Event):void {
 528                 for each (var trace:Trace in conn.getTraces()) {
 529                     if (trace.id == id) { trace.addToMap(); }
 530                 }
 531             });
 532             conn.fetchUserTraces();
 533         }
 534
 535         ]]></mx:Script>
 536
 537 </mx:Application>
 538