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.core.FlexGlobals;
 112         import mx.events.DragEvent;
 113         import mx.events.CloseEvent;
 114         import mx.managers.DragManager;
 115         import mx.core.DragSource;
 116         import mx.controls.Alert;
 117         import com.mindspace.l10n.events.LocaleEvent;
 118
 119         public var theMap:Map;
 120         public var theController:EditController;
 121                 public var yahoo:Yahoo;
 122                 public var trackLoader:TrackLoader;
 123                 public var toolbox:Toolbox;
 124         public var bugLoader:BugLoader;
 125         public var bikeShopLoader:BikeShopLoader;
 126
 127                 private var savecount:uint=0;
 128                 private var loadcount:uint=0;
 129                 private var saveLabel:String='Save';
 130                 private var saveTimer:Timer;
 131
 132         include "version.as";
 133
 134                 private function startInit():void {
 135             /* For reasons that I don't yet understand, the en_US locale is the default and doesn't work at all. */
 136             /* Change this to another locale (e.g. fr_FR) to see the differences. */
 137             if (loaderInfo.parameters['locale']) {
 138               dispatchEvent(new LocaleEvent(LocaleEvent.LOAD_LOCALE,loaderInfo.parameters['locale']));
 139             }
 140
 141                         // Load font and don't do anything until that's done
 142                         var loader:Loader = new Loader();
 143                         loader.contentLoaderInfo.addEventListener(Event.COMPLETE, continueInit);
 144                         loader.load(new URLRequest("FontLibrary.swf"));
 145                 }
 146
 147                 private function continueInit(r:Event):void {
 148                         // Set font
 149                         var FontLibrary:Class = r.target.applicationDomain.getDefinition("FontLibrary") as Class;
 150                         Font.registerFont(FontLibrary.DejaVu);
 151
 152                         Globals.vars.map_area = map_area;
 153                         Globals.vars.root = map_area.rawChildren;                       // set up global reference to root level
 154                         var _root:IChildList = map_area.rawChildren;            // convenient local shorthand
 155                         Globals.vars.nocache = loaderInfo.parameters['nocache'] == 'true';
 156                         Globals.vars.flashvars = loaderInfo.parameters;
 157
 158                         // Remember localised Save text, because we change this dynamically
 159                         saveLabel=saveButton.label;
 160
 161                         // populate sharedObject with loaderInfo parameters if supplied
 162                         var obj:SharedObject = SharedObject.getLocal("user_state");
 163                         var objChanged:Boolean = false;
 164                         if (loaderInfo.parameters['tileurl']) {
 165                                 obj.setProperty('background_url',loaderInfo.parameters['tileurl']);
 166                                 obj.setProperty('background_name','Custom');
 167                                 objChanged=true;
 168                         }
 169                         if (loaderInfo.parameters['style']) {
 170                                 obj.setProperty('stylesheet_url',loaderInfo.parameters['style']);
 171                                 obj.setProperty('stylesheet_name','Custom');
 172                                 objChanged=true;
 173                         }
 174                         if (objChanged) { obj.flush(); }
 175
 176                         // map backdrop object
 177             var w:uint = map_area.width;
 178             var h:uint = map_area.height;
 179             var b:Sprite = new Sprite();
 180             b.height=h; b.width=w;
 181             b.graphics.beginFill(0xFFFFEA,100);
 182             b.graphics.drawRect(0,0,w,h);
 183             b.graphics.endFill();
 184                         _root.addChild(b);
 185
 186                         // pass additional parameters to map
 187                         var params:Object={}; var k:String;
 188                         for (k in this.loaderInfo.parameters) params[k]=this.loaderInfo.parameters[k];
 189                         for (k in SharedObject.getLocal('user_state').data) params[k]=SharedObject.getLocal('user_state').data[k];
 190
 191                         // Create map
 192                         theMap=new Map();
 193                         theMap.backdrop=b;
 194             theMap.updateSize(w,h);
 195                         theMap.addEventListener(MapEvent.SCALE, scaleHandler);
 196
 197                         yahoo=new Yahoo(theMap);
 198                         yahoo.hide();
 199                         _root.addChild(yahoo);
 200                         _root.addChild(theMap);
 201
 202                         // Initialise stylesheets
 203                         Stylesheets.instance().init();
 204                         Stylesheets.instance().addEventListener(CollectionEvent.SELECT,
 205                                 function(e:CollectionEvent):void { theMap.editableLayer.setStyle(String(e.data)); }
 206                         );
 207
 208                         // Add core data layer
 209                         var conn:Connection = new XMLConnection("Main", params['api'], params['policy'], params);
 210             conn.addEventListener(Connection.LOAD_STARTED, onDataStart);
 211             conn.addEventListener(Connection.LOAD_COMPLETED, onDataComplete);
 212             conn.addEventListener(Connection.SAVE_STARTED, onDataStart);
 213             conn.addEventListener(Connection.SAVE_COMPLETED, onDataComplete);
 214             conn.addEventListener(Connection.DATA_DIRTY, onDataDirty);
 215             conn.addEventListener(Connection.DATA_CLEAN, onDataClean);
 216                         conn.addEventListener(MapEvent.ERROR, onMapError);
 217                         conn.addEventListener(AttentionEvent.ATTENTION, onAttention);
 218                         conn.addEventListener(AttentionEvent.ALERT, onAlert);
 219                         theMap.addLayer(conn, Stylesheets.instance().selected, false, true);
 220
 221             // Auto-load vector backgrounds from config
 222             theMap.addEventListener(MapEvent.INITIALISED, function(e:Event):void { VectorBackgrounds.instance().init(theMap); });
 223
 224                         // Set start position of map
 225                         // ** FIXME: if lat/lon/zoom aren't supplied, we need to keep the map in a non-loading state
 226                         //           until the user has decided where to start editing (e.g. when the first GPX loads)
 227                         theMap.init(params['lat'], params['lon'], params['zoom']);
 228
 229                         // add attribution/logo sprite
 230                         var overlay:Sprite=new Sprite();
 231                         var attribution:TextField=new TextField();
 232                         attribution.width=220; attribution.height=300;
 233                         attribution.multiline=true;
 234                         attribution.wordWrap=true;
 235                         attribution.selectable=false;
 236                         attribution.defaultTextFormat=new TextFormat("_sans", 9, 0, false, false, false);
 237                         overlay.addChild(attribution);
 238                         var terms:TextField=new TextField();
 239                         terms.width=200; terms.height=15;
 240                         terms.selectable=false;
 241                         terms.defaultTextFormat=new TextFormat("_sans", 9, 0, false, false, true);
 242                         overlay.addChild(terms);
 243                         _root.addChild(overlay);
 244
 245                         // mouse-up handler attached to stage, so the user can release outside the map
 246                         stage.addEventListener(MouseEvent.MOUSE_UP, theMap.mouseUpHandler);
 247                         Globals.vars.map_area.addEventListener(MouseEvent.MOUSE_MOVE, theMap.mouseMoveHandler);
 248                         Globals.vars.map_area.addEventListener(MouseEvent.MOUSE_DOWN, theMap.mouseDownHandler);
 249
 250                         // initialise imagery
 251                         theMap.tileset.blocks=[new RegExp("google","i")];       // hard-coded block on Google tiles
 252                         theMap.tileset.setDimming(params['background_dim']    ==null ? true  : params['background_dim']);
 253                         theMap.tileset.setSharpen(params['background_sharpen']==null ? false : params['background_sharpen']);
 254                         Imagery.instance().init(theMap, overlay, yahoo);
 255                         Imagery.instance().addEventListener(MapEvent.BUMP, bumpHandler);
 256                         Imagery.instance().addEventListener(CollectionEvent.SELECT,
 257                                 function(e:CollectionEvent):void { theMap.tileset.init(e.data, e.data!=''); }
 258                         );
 259
 260                         // keyboard event attached to stage
 261                         stage.addEventListener(KeyboardEvent.KEY_UP, theMap.keyUpHandler);
 262
 263                         // mouse-position listener for co-ordinate display
 264             theMap.addEventListener(MapEvent.MOUSE_MOVE, mouseoverHandler);
 265
 266                         // position toolbox
 267                         toolbox=Toolbox(PopUpManager.createPopUp(this,Toolbox,false));
 268                         toolbox.init(theController);
 269                         toolbox.x=stage.stageWidth-toolbox.width-5;
 270                         toolbox.y=stage.stageHeight-toolbox.height-5;
 271
 272                         // add debug field
 273                         var t:TextField=new TextField();
 274                         t.width=500; t.height=150; t.border=true;
 275                         t.multiline=true;
 276                         _root.addChild(t);
 277                         Globals.vars.debug=t;
 278             t.visible = loaderInfo.parameters["show_debug"] == 'true';
 279                         Globals.vars.root=theMap;       // just for the addDebug function
 280
 281                         // create controller
 282             theController = new EditController(theMap, tagViewer, toolbox);
 283             theController.setActive();
 284                         theController.addEventListener(AttentionEvent.ATTENTION, onAttention);
 285                         theController.addEventListener(AttentionEvent.ALERT, onAlert);
 286
 287             // set the access token from saved cookie
 288             var tokenObject:SharedObject = SharedObject.getLocal("access_token");
 289             conn.setAccessToken(tokenObject.data["oauth_token"], tokenObject.data["oauth_token_secret"]);
 290
 291             // Load any requested GPX track
 292             if (loaderInfo.parameters['gpx']) {
 293                 var id:Number = loaderInfo.parameters['gpx'];
 294                 if (conn.hasAccessToken()) {
 295                     loadTrace(id);
 296                 } else {
 297                     SaveManager.ensureAccess(function ():void { loadTrace(id); }, conn);
 298                 }
 299             }
 300
 301                         // Load arbitrary GPX from provided URL
 302                         if (loaderInfo.parameters['gpx_url']) {
 303
 304                 var gpx_url:String = loaderInfo.parameters['gpx_url'];
 305
 306                 var connection:Connection = new Connection(name, gpx_url, null, null);
 307                 var gpx:GpxImporter=new GpxImporter(connection, theMap, [gpx_url],
 308                                                 function(success:Boolean,message:String=null):void {
 309                                                     if (!success) return;
 310                                                     var paint:MapPaint = theMap.addLayer(connection, "stylesheets/gpx.css");
 311                                                     paint.updateEntityUIs(false, false);
 312                                                     dispatchEvent(new Event("layers_changed"));
 313                                                 }, false);
 314                         }
 315
 316                         // create GPS trackloader
 317                         trackLoader=new TrackLoader(theMap,conn.apiBase);
 318
 319             // Force authentication on startup, if required
 320             // force_auth == force => checks for access token, and displays OAuth panel if needed
 321             var force_auth:String = loaderInfo.parameters["force_auth"];
 322             if (!conn.hasAccessToken() && force_auth == 'force') {
 323               SaveManager.ensureAccess(onAccessChecked, conn);
 324             }
 325
 326             // show help dialog on startup, if required
 327             // show_help == always => on every startup
 328             // show_help == once => show on first startup only
 329             var show_help:String = loaderInfo.parameters["show_help"];
 330
 331             if (show_help == 'always' || (show_help == 'once' && obj.data["help_shown"] != "true")) {
 332               new HelpDialog().init();
 333             }
 334
 335             // Check if Tiger highlighting should be enabled from saved object
 336             Globals.vars.highlightTiger = obj.data['tiger_highlighted'];
 337                 }
 338
 339                 public function onMapError(mapEvent:MapEvent):void {
 340                         var buttons:uint=0;
 341                         if (mapEvent.params.no) { trace("no is set"); }
 342                         if (mapEvent.params.yes             ) buttons|=mx.controls.Alert.YES;
 343                         if (mapEvent.params.no              ) buttons|=mx.controls.Alert.NO;
 344                         if (mapEvent.params.cancel          ) buttons|=mx.controls.Alert.CANCEL;
 345                         if (mapEvent.params.ok || buttons==0) buttons|=mx.controls.Alert.OK;
 346                         trace("showing alert with "+buttons);
 347                         Alert.show(mapEvent.params.message, 'Error', buttons, null, function(closeEvent:CloseEvent):void {
 348                                 switch (closeEvent.detail) {
 349                                         case mx.controls.Alert.CANCEL:  mapEvent.params.cancel(); break; //fixme? this gets called if user presses escape, even if there's no cancel button.
 350                                         case mx.controls.Alert.YES:             mapEvent.params.yes(); break;
 351                                         case mx.controls.Alert.NO:              mapEvent.params.no(); break;
 352                                         default:                                                if (mapEvent.params.ok) mapEvent.params.ok();
 353                                 }
 354                         });
 355                 }
 356
 357                 /** Highlight an entity in response to an 'attention' event */
 358
 359                 public function onAttention(event:AttentionEvent):void {
 360                         var entity:Entity=event.entity;
 361                         if (entity is Relation) {
 362                                 // If it's a relation, just bring up the editor panel
 363                                 var panel:RelationEditorPanel = RelationEditorPanel(
 364                                         PopUpManager.createPopUp(Application(FlexGlobals.topLevelApplication), RelationEditorPanel, true));
 365                                 panel.setRelation(entity as Relation);
 366                                 PopUpManager.centerPopUp(panel);
 367                                 return;
 368                         }
 369
 370                         var lat:Number, lon:Number;
 371                         var panTo:Boolean=true;
 372                         if (entity is Way) {
 373                                 // If it's a way, find if it's on-screen
 374                                 for (var i:uint=0; i<Way(entity).length; i++) {
 375                                         var node:Node=Way(entity).getNode(i)
 376                                         if (node.within(theMap.edge_l,theMap.edge_r,theMap.edge_t,theMap.edge_b)) { panTo=false; }
 377                                         lat=node.lat; lon=node.lon;
 378                                 }
 379                         } else if (entity is Node) {
 380                                 // If it's a node, check if it's on-screen
 381                                 if (entity.within(theMap.edge_l,theMap.edge_r,theMap.edge_t,theMap.edge_b)) { panTo=false; }
 382                                 lat=Node(entity).lat; lon=Node(entity).lon;
 383                         }
 384                         // Pan if required, and select the object
 385                         if (panTo) { theMap.moveMapFromLatLon(lat,lon); }
 386                         theController.setState(theController.findStateForSelection([entity]));
 387                 }
 388
 389                 /** Display floating warning in response to an 'alert' event */
 390
 391                 public function onAlert(event:AttentionEvent):void {
 392                         var alert:FloatingAlert=new FloatingAlert(event.message);
 393                         stage.addChild(alert);
 394                 }
 395
 396         public function onResizeMap():void {
 397             if ( theMap != null )
 398                 theMap.updateSize(map_area.width, map_area.height);
 399
 400                         if (toolbox) {
 401                                 toolbox.x=Math.min(toolbox.x,stage.stageWidth-toolbox.width-5);
 402                                 toolbox.y=Math.min(toolbox.y,stage.stageHeight-toolbox.height-5);
 403                         }
 404         }
 405                 private function bumpHandler(e:MapEvent):void {
 406                         if (toolbox) {
 407                                 toolbox.y=Math.min(toolbox.y,stage.stageHeight-toolbox.height-10-e.params.y);
 408                         }
 409                 }
 410
 411         private function mouseoverHandler(e:MapEvent):void {
 412             if (coordsbox.visible) {
 413                 coordsbox.text= Number(e.params.x).toFixed(5) + "\n " + Number(e.params.y).toFixed(5); // Not sure if 5 dp's really required.
 414             }
 415         }
 416
 417         private function onDataStart(event:Event):void {
 418                         switch (event.type) {
 419                                 case Connection.LOAD_STARTED:   loadcount++; break;
 420                                 case Connection.SAVE_STARTED:   savecount++; break;
 421                         }
 422                         updateDataWorking();
 423         }
 424         private function onDataComplete(event:Event):void {
 425                         switch (event.type) {
 426                                 case Connection.LOAD_COMPLETED: loadcount--; break;
 427                                 case Connection.SAVE_COMPLETED: savecount--; break;
 428                         }
 429             updateDataWorking();
 430         }
 431                 private function updateDataWorking():void {
 432                         if (loadcount>0 && savecount>0) { dataWorking.text="Loading/saving..."; }
 433                         else if (loadcount>0)           { dataWorking.text="Loading data..."; }
 434                         else if (savecount>0)           { dataWorking.text="Saving data..."; }
 435                         else                            { dataWorking.text=""; }
 436                         dataWorking.visible=(dataWorking.text!="");
 437                 }
 438         private function onDataDirty(event:Event):void {
 439                         saveButton.enabled=true;
 440             if (ExternalInterface.available) {
 441               ExternalInterface.call("markChanged", false);
 442             }
 443                         if (!saveTimer || !saveTimer.running) {
 444                                 saveTimer=new Timer(60*1000,0);
 445                                 saveTimer.addEventListener(TimerEvent.TIMER,saveTimeUpdate);
 446                                 saveTimer.start();
 447                         }
 448                 }
 449                 private function onDataClean(event:Event):void {
 450                         saveButton.enabled=false;
 451             if (ExternalInterface.available) {
 452               ExternalInterface.call("markChanged", true);
 453             }
 454             if (saveTimer && saveTimer.running) {
 455                                 saveTimer.stop();
 456                                 saveTimer.removeEventListener(TimerEvent.TIMER,saveTimeUpdate);
 457                                 saveTimeWrite(0);
 458                         }
 459                 }
 460                 private function saveTimeUpdate(event:TimerEvent):void {
 461                         var timer:Timer=Timer(event.target);
 462                         saveTimeWrite(uint(timer.delay*timer.currentCount/1000/60));
 463                 }
 464                 private function saveTimeWrite(minutes:uint):void {
 465                         if (minutes<5) {
 466                                 saveButton.label=saveLabel;
 467                         } else {
 468                                 saveButton.label=saveLabel+" ("+minutes+"m"+")";
 469                                 if (minutes>=20 && minutes/5==int(minutes/5)) {
 470                                         theController.dispatchEvent(new AttentionEvent(AttentionEvent.ALERT, null, minutes+"m since last save - please save regularly"));
 471                                 }
 472                         }
 473                 }
 474
 475                 private function scaleHandler(event:MapEvent):void {
 476                         dispatchEvent(new Event("rescale"));
 477                 }
 478
 479                 [Bindable(event="rescale")]
 480                 private function getScale():String {
 481                         return String(theMap.scale);
 482                 }
 483
 484         private function dragEnterHandler(event:DragEvent):void {
 485             // Get the drop target component from the event object.
 486             var dropTarget:Canvas=event.currentTarget as Canvas;
 487             // Accept the drag only if the user is dragging poi with tags
 488             if (event.dragSource.hasFormat('tags'))
 489             {
 490                 DragManager.acceptDragDrop(dropTarget);
 491             }
 492         }
 493
 494         private function dragDropHandler(event:DragEvent):void {
 495                         // Deselect the dragged icon
 496                         if (event.dragSource.dataForFormat('container')) {
 497                                 event.dragSource.dataForFormat('container').selectedItem=-1;
 498                         }
 499
 500                         // Get the tags
 501             var tags:Array = event.dragSource.dataForFormat('tags') as Array;
 502
 503             // If you dnd quick enough, this exposes a flex bug and event.stageX/Y become negative.
 504             // Take the mouse positions from a displayObject's stage for consistent results.
 505             var mapLoc:Point = Globals.vars.root.globalToLocal(new Point(event.target.stage.mouseX, event.target.stage.mouseY));
 506             var lat:Number = Globals.vars.root.coord2lat(mapLoc.y);
 507             var lon:Number = Globals.vars.root.coord2lon(mapLoc.x);
 508
 509             var createAction:CompositeUndoableAction = new CompositeUndoableAction("Create POI");
 510
 511                         var conn:Connection = theMap.editableLayer.connection;
 512             var node:Node = conn.createNode({}, lat, lon, createAction.push);
 513             for each ( var tag:Object in tags ) {
 514                 node.setTag(tag.k, tag.v, createAction.push);
 515             }
 516                         conn.registerPOI(node);
 517                         MainUndoStack.getGlobalStack().addAction(createAction);
 518             theController.setState(new SelectedPOINode(node));
 519         }
 520
 521         /* Called when forcing an initial access token check. */
 522         private function onAccessChecked():void {
 523             // Floaty panel message "You now have access";
 524         }
 525
 526         private function loadTrace(id:Number):void {
 527             var conn:Connection = theMap.editableLayer.connection;
 528             conn.addEventListener(Connection.TRACES_LOADED, function (e:Event):void {
 529                 for each (var trace:Trace in conn.getTraces()) {
 530                     if (trace.id == id) { trace.addToMap(); }
 531                 }
 532             });
 533             conn.fetchUserTraces();
 534         }
 535
 536         ]]></mx:Script>
 537
 538 </mx:Application>
 539