potlatch2.mxml

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <mx:Application
   3     xmlns:fx="http://ns.adobe.com/mxml/2009"
   4         xmlns:mx="library://ns.adobe.com/flex/mx"
   5     xmlns:s="library://ns.adobe.com/flex/spark"
   6         xmlns:halcyon="net.systemeD.halcyon.*"
   7         xmlns:potlatch2="net.systemeD.potlatch2.*"
   8         layout="vertical"
   9         horizontalScrollPolicy="off"
  10         verticalScrollPolicy="off"
  11         horizontalAlign="center"
  12         addedToStage="startInit()"
  13         preloader="net.systemeD.potlatch2.Preloader">
  14
  15
  16
  17         <fx:Style source="styles/Application.css"/>
  18
  19     <fx:Declarations>
  20         <map:LocalizationMap xmlns:map="l10n.map.*" />
  21         <mx:Glow id="glowImage" duration="100"
  22             alphaFrom="0.3" alphaTo="1.0"
  23             blurXFrom="0.0" blurXTo="5.0"
  24             blurYFrom="0.0" blurYTo="5.0"
  25             color="0xFF8000"/>
  26         <mx:Glow id="unglowImage" duration="100"
  27             alphaFrom="1.0" alphaTo="0.3"
  28             blurXFrom="5.0" blurXTo="0.0"
  29             blurYFrom="5.0" blurYTo="0.0"
  30             color="0xFF8000"/>
  31         <mx:WipeLeft id="wipeOut" duration="250"/>
  32         <mx:WipeRight id="wipeIn" duration="250"/>
  33     </fx:Declarations>
  34
  35     <mx:ApplicationControlBar id="controlbar" dock="true" tabChildren="false" >
  36         <mx:Button label="Save" icon="@Embed('embedded/upload.svg')" disabledIcon="@Embed('embedded/upload_disabled.svg')" styleName="appBarButton"
  37                         click="SaveManager.saveChanges(theMap.editableLayer.connection);" id="saveButton" enabled="false"/>
  38         <mx:Button id="helpButton" label="Help" click="new HelpDialog().init();" styleName="appBarButton" />
  39         <mx:Spacer width="40"/>
  40         <mx:Button id="undo" label="Undo" click="MainUndoStack.getGlobalStack().undo();" styleName="appBarButton"
  41             enabled="{MainUndoStack.getGlobalStack().canUndo()}"
  42             toolTip="{MainUndoStack.getGlobalStack().getUndoDescription() ? 'Undo '+MainUndoStack.getGlobalStack().getUndoDescription() : 'Undo last action'}" />
  43         <mx:Button id="redo" label="Redo" click="MainUndoStack.getGlobalStack().redo();" styleName="appBarButton"
  44             enabled="{MainUndoStack.getGlobalStack().canRedo()}"
  45             toolTip="{MainUndoStack.getGlobalStack().getRedoDescription() ? 'Redo '+MainUndoStack.getGlobalStack().getRedoDescription() : 'Redo last action'}" />
  46         <mx:Spacer width="100%"/>
  47         <mx:PopUpButton id="bgButton" label="Background" openAlways="true" styleName="appBarButton"
  48             creationComplete="bgButton.popUp = new BackgroundSelector();"/>
  49         <mx:PopUpButton id="styleButton" label="Map Style" openAlways="true" styleName="appBarButton"
  50             creationComplete="styleButton.popUp = new StyleSelector();"/>
  51                 <mx:PopUpMenuButton id="gpsButton" label="GPS" styleName="appBarButton"
  52                     itemClick="if (event.index==0) { trackLoader.load(); }
  53                           else if (event.index==1) { new MyGpxDialog().init(); }
  54                                               else { mx.controls.Menu(gpsButton.popUp).selectedIndex=0;
  55                                                      mx.controls.Menu(gpsButton.popUp).selectedIndex=0; /* Yes, we do need to call it twice */
  56                                                      theMap.removeLayerByName('GPS tracks'); }">
  57                         <mx:dataProvider>
  58                                 <fx:Array>
  59                                         <fx:Object label="GPS data" id="gpsData" />
  60                                         <fx:Object label="My tracks" id="myTracks" />
  61                                         <fx:Object label="Clear" id="clearGps" />
  62                                 </fx:Array>
  63                         </mx:dataProvider>
  64                 </mx:PopUpMenuButton>
  65         <mx:Button id="optionsButton" label="Options" click="new OptionsDialog().init();" styleName="appBarButton" />
  66     </mx:ApplicationControlBar>
  67
  68     <mx:HDividedBox width="100%" height="100%">
  69
  70           <!-- Tag viewer -->
  71           <potlatch2:TagViewer width="25%" height="100%" id="tagViewer"/>
  72
  73       <mx:Canvas width="75%" height="100%">
  74         <mx:Canvas id="map_area" resize="onResizeMap()"
  75             top="0" left="0" width="100%" height="100%" dragEnter="dragEnterHandler(event);" dragDrop="dragDropHandler(event);">
  76         </mx:Canvas>
  77         <mx:Image source="@Embed('embedded/zoomIn.svg')" left="5" top="5" click="theMap.zoomIn();"
  78             rollOverEffect="glowImage" rollOutEffect="unglowImage" toolTip="{'Zoom in - currently z'+getScale()}" />
  79         <mx:Image source="@Embed('embedded/zoomOut.svg')" left="5" top="22" click="theMap.zoomOut();"
  80             rollOverEffect="glowImage" rollOutEffect="unglowImage" toolTip="{'Zoom out - currently z'+getScale()}" />
  81         <mx:Image source="@Embed('embedded/search.svg')" left="5" top="42" click="new FindDialog().init();"
  82             rollOverEffect="glowImage" rollOutEffect="unglowImage" toolTip="Find place" />
  83         <mx:TextArea id="dataWorking" text="" right="5" top="5" disabledColor="black" backgroundDisabledColor="0xFFFFEA" height="18"
  84             enabled="false" borderThickness="0"
  85             showEffect="{wipeIn}" hideEffect="{wipeOut}"/>
  86         <mx:TextArea id="coordsbox" left="25" top="5" disabledColor="black" backgroundDisabledColor="0xFFFFEA" height="33"
  87             width="57" enabled="false" borderThickness="0" visible="false"/>
  88
  89     </mx:Canvas>
  90
  91     </mx:HDividedBox>
  92
  93         <fx:Script><![CDATA[
  94                 import net.systemeD.halcyon.*;
  95                 import net.systemeD.halcyon.connection.*;
  96                 import net.systemeD.potlatch2.*;
  97                 import net.systemeD.potlatch2.save.SaveManager;
  98                 import net.systemeD.potlatch2.find.*;
  99                 import net.systemeD.potlatch2.collections.*;
 100                 import net.systemeD.potlatch2.controller.*;
 101                 import net.systemeD.potlatch2.help.*;
 102                 import net.systemeD.potlatch2.dialogs.*;
 103                 import net.systemeD.potlatch2.utils.*;
 104                 import net.systemeD.controls.FloatingAlert;
 105                 import net.systemeD.controls.Spinner;
 106                 import mx.managers.PopUpManager;
 107                 import flash.system.Security;
 108                 import flash.net.*;
 109                 import flash.utils.Timer;
 110                 import flash.events.TimerEvent;
 111                 import flash.events.MouseEvent;
 112                 import flash.display.Sprite;
 113                 import mx.core.IChildList;
 114         import mx.containers.Canvas;
 115                 import mx.core.Application;
 116                 import mx.core.FlexGlobals;
 117         import mx.events.DragEvent;
 118         import mx.events.CloseEvent;
 119         import mx.managers.DragManager;
 120         import mx.core.DragSource;
 121         import mx.controls.Alert;
 122         import org.babelfx.events.LocaleEvent;
 123
 124         public var theMap:Map;
 125         public var theController:EditController;
 126                 public var trackLoader:TrackLoader;
 127                 public var toolbox:Toolbox;
 128         public var bugLoader:BugLoader;
 129         public var bikeShopLoader:BikeShopLoader;
 130
 131                 private var savecount:uint=0;
 132                 private var loadcount:uint=0;
 133                 private var spinner:Spinner;
 134                 private var saveLabel:String='Save';
 135                 private var saveTimer:Timer;
 136
 137         include "version.as";
 138
 139                 private function startInit():void {
 140                         var loader:Loader = new Loader();
 141                         loader.contentLoaderInfo.addEventListener(Event.COMPLETE, startApp);
 142             if (loaderInfo.parameters['font_library']) {
 143                             loader.load(new URLRequest(loaderInfo.parameters['font_library']));
 144             } else {
 145                             loader.load(new URLRequest("FontLibrary.swf"));
 146             }
 147
 148             if (loaderInfo.parameters['locale'] && loaderInfo.parameters['locale']!='en_US') {
 149                 // we don't bother with localisation if the user is en_US, as P2 is in English by default
 150                 Globals.vars.locale = loaderInfo.parameters['locale'];
 151                 Globals.vars.locale_paths = loaderInfo.parameters['locale_paths'];
 152                 dispatchEvent(new LocaleEvent(LocaleEvent.LOAD_LOCALE, loaderInfo.parameters['locale']));
 153                 dispatchEvent(new LocaleEvent(LocaleEvent.LOAD_LOCALE, 'en_US')); // think en_US is default
 154                 resourceManager.localeChain = [loaderInfo.parameters['locale'], 'en_US'];
 155             }
 156                 }
 157
 158                 private function startApp(event:Event):void {
 159                         controlbar.setStyle('dropShadowEnabled',"false");       // Flex 4 doesn't permit this in Application.css
 160
 161                         // Set font
 162                         var FontLibrary:Class = event.target.applicationDomain.getDefinition("FontLibrary") as Class;
 163                         Font.registerFont(FontLibrary.DejaVu);
 164
 165                         Globals.vars.map_area = map_area;
 166                         Globals.vars.root = map_area.rawChildren;                       // set up global reference to root level
 167                         var _root:IChildList = map_area.rawChildren;            // convenient local shorthand
 168                         Globals.vars.nocache = loaderInfo.parameters['nocache'] == 'true';
 169                         Globals.vars.flashvars = loaderInfo.parameters;
 170
 171                         // Remember localised Save text, because we change this dynamically
 172                         saveLabel=saveButton.label;
 173
 174                         // populate sharedObject with loaderInfo parameters if supplied
 175                         var obj:SharedObject = SharedObject.getLocal("user_state","/");
 176                         var objChanged:Boolean = false;
 177                         if (loaderInfo.parameters['tileurl']) {
 178                                 obj.setProperty('background_url',loaderInfo.parameters['tileurl']);
 179                                 obj.setProperty('background_name','Custom');
 180                                 objChanged=true;
 181                         }
 182                         if (loaderInfo.parameters['style']) {
 183                                 obj.setProperty('stylesheet_url',loaderInfo.parameters['style']);
 184                                 obj.setProperty('stylesheet_name','Custom');
 185                                 objChanged=true;
 186                         }
 187                         if (objChanged) { obj.flush(); }
 188
 189                         // map backdrop object
 190             var w:uint = map_area.width;
 191             var h:uint = map_area.height;
 192             var b:Sprite = new Sprite();
 193             b.height=h; b.width=w;
 194             b.graphics.beginFill(0xFFFFEA,100);
 195             b.graphics.drawRect(0,0,w,h);
 196             b.graphics.endFill();
 197                         _root.addChild(b);
 198
 199                         // pass additional parameters to map
 200                         var params:Object={}; var k:String;
 201                         for (k in this.loaderInfo.parameters) params[k]=this.loaderInfo.parameters[k];
 202                         for (k in SharedObject.getLocal('user_state',"/").data) params[k]=SharedObject.getLocal('user_state',"/").data[k];
 203
 204                         // Create map
 205                         theMap=new Map();
 206                         theMap.backdrop=b;
 207             theMap.updateSize(w,h);
 208                         theMap.addEventListener(MapEvent.SCALE, scaleHandler);
 209                         _root.addChild(theMap);
 210
 211                         // Initialise stylesheets
 212                         Stylesheets.instance().init();
 213                         Stylesheets.instance().addEventListener(CollectionEvent.SELECT,
 214                                 function(e:CollectionEvent):void { theMap.editableLayer.setStyle(String(e.data)); }
 215                         );
 216
 217                         // Add core data layer
 218                         var conn:Connection = new XMLConnection("Main", params['api'], params['policy'], params);
 219             conn.addEventListener(Connection.LOAD_STARTED, onDataStart);
 220             conn.addEventListener(Connection.LOAD_COMPLETED, onDataComplete);
 221             conn.addEventListener(Connection.SAVE_STARTED, onDataStart);
 222             conn.addEventListener(Connection.SAVE_COMPLETED, onDataComplete);
 223             conn.addEventListener(Connection.DATA_DIRTY, onDataDirty);
 224             conn.addEventListener(Connection.DATA_CLEAN, onDataClean);
 225                         conn.addEventListener(MapEvent.ERROR, onMapError);
 226                         conn.addEventListener(AttentionEvent.ATTENTION, onAttention);
 227                         conn.addEventListener(AttentionEvent.ALERT, onAlert);
 228                         if (params['licence_status']) conn.statusFetcher=new StatusFetcher("http://wtfe.gryph.de/api/0.6/problems",conn);
 229                         theMap.addLayer(conn, Stylesheets.instance().selected.url, false, true);
 230
 231             // Auto-load vector backgrounds from config
 232             theMap.addEventListener(MapEvent.INITIALISED, function(e:Event):void { VectorBackgrounds.instance().init(theMap); });
 233
 234                         // Add loading 'spinner' indicator
 235                         spinner=new Spinner();
 236                         _root.addChild(spinner);
 237                         spinner.x=dataWorking.x-20;
 238                         spinner.y=dataWorking.y+dataWorking.height/2;
 239
 240                         // Set start position of map
 241                         // ** FIXME: if lat/lon/zoom aren't supplied, we need to keep the map in a non-loading state
 242                         //           until the user has decided where to start editing (e.g. when the first GPX loads)
 243                         theMap.init(params['lat'], params['lon'], params['zoom']);
 244
 245                         // add attribution/logo sprite
 246                         var overlay:Sprite=new Sprite();
 247                         var attribution:TextField=new TextField();
 248                         attribution.width=220; attribution.height=300;
 249                         attribution.multiline=true;
 250                         attribution.wordWrap=true;
 251                         attribution.selectable=false;
 252                         attribution.defaultTextFormat=new TextFormat("_sans", 9, 0, false, false, false);
 253                         overlay.addChild(attribution);
 254                         var terms:TextField=new TextField();
 255                         terms.width=200; terms.height=15;
 256                         terms.selectable=false;
 257                         terms.defaultTextFormat=new TextFormat("_sans", 9, 0, false, false, true);
 258                         overlay.addChild(terms);
 259                         _root.addChild(overlay);
 260
 261                         // mouse-up handler attached to stage, so the user can release outside the map
 262                         stage.addEventListener(MouseEvent.MOUSE_UP, theMap.mouseUpHandler);
 263                         Globals.vars.map_area.addEventListener(MouseEvent.MOUSE_MOVE, theMap.mouseMoveHandler);
 264                         Globals.vars.map_area.addEventListener(MouseEvent.MOUSE_DOWN, theMap.mouseDownHandler);
 265
 266                         // initialise imagery
 267                         theMap.tileset.blocks=[/google\./i];    // hard-coded block on Google tiles
 268                         theMap.tileset.setDimming(params['background_dim']    ==null ? true  : params['background_dim']);
 269                         theMap.tileset.setSharpen(params['background_sharpen']==null ? false : params['background_sharpen']);
 270                         var imagery:Imagery = Imagery.instance();
 271                         imagery.init(theMap, overlay);
 272                         imagery.addEventListener(MapEvent.BUMP, bumpHandler);
 273                         imagery.addEventListener(CollectionEvent.SELECT,
 274                                 function(e:CollectionEvent):void { theMap.tileset.init(e.data, e.data!=''); }
 275                         );
 276                         theMap.tileset.init(imagery.selected, imagery.selected != '');
 277
 278                         // keyboard event attached to stage
 279                         stage.addEventListener(KeyboardEvent.KEY_UP, theMap.keyUpHandler);
 280
 281                         // mouse-position listener for co-ordinate display
 282             theMap.addEventListener(MapEvent.MOUSE_MOVE, mouseoverHandler);
 283
 284                         // position toolbox
 285                         toolbox=Toolbox(PopUpManager.createPopUp(this,Toolbox,false));
 286                         toolbox.init(theController);
 287                         toolbox.x=stage.stageWidth-toolbox.width-5;
 288                         toolbox.y=stage.stageHeight-toolbox.height-5;
 289
 290                         // add debug field
 291                         var t:TextField=new TextField();
 292                         t.width=500; t.height=150; t.border=true;
 293                         t.multiline=true;
 294                         _root.addChild(t);
 295                         Globals.vars.debug=t;
 296             t.visible = loaderInfo.parameters["show_debug"] == 'true';
 297                         Globals.vars.root=theMap;       // just for the addDebug function
 298
 299                         // create controller
 300             theController = new EditController(theMap, tagViewer, toolbox);
 301             theController.setActive();
 302                         theController.addEventListener(AttentionEvent.ATTENTION, onAttention);
 303                         theController.addEventListener(AttentionEvent.ALERT, onAlert);
 304
 305             // set the access token from saved cookie
 306             var tokenObject:SharedObject = SharedObject.getLocal("access_token","/");
 307             conn.setAccessToken(tokenObject.data["oauth_token"], tokenObject.data["oauth_token_secret"]);
 308
 309             // Load any requested GPX track
 310             if (loaderInfo.parameters['gpx']) {
 311                 var id:Number = loaderInfo.parameters['gpx'];
 312                 if (conn.hasAccessToken()) {
 313                     loadTrace(id);
 314                 } else {
 315                     SaveManager.ensureAccess(function ():void { loadTrace(id); }, conn);
 316                 }
 317             }
 318
 319                         // Load arbitrary GPX from provided URL
 320                         if (loaderInfo.parameters['gpx_url']) {
 321
 322                 var gpx_url:String = loaderInfo.parameters['gpx_url'];
 323
 324                 var connection:Connection = new Connection(name, gpx_url, null, null);
 325                 var gpx:GpxImporter=new GpxImporter(connection, theMap,
 326                                                 function(connection:Connection,options:Object,success:Boolean,message:String=null):void {
 327                                                     if (!success) return;
 328                                                     var paint:MapPaint = theMap.addLayer(connection, "stylesheets/gpx.css");
 329                                                     paint.updateEntityUIs(false, false);
 330                                                     dispatchEvent(new Event("layers_changed"));
 331                                                 }, false);
 332                                 gpx.importFromRemoteFiles([gpx_url]);
 333                         }
 334
 335                         // create GPS trackloader
 336                         trackLoader=new TrackLoader(theMap,conn.apiBase);
 337
 338             // Force authentication on startup, if required
 339             // force_auth == force => checks for access token, and displays OAuth panel if needed
 340             var force_auth:String = loaderInfo.parameters["force_auth"];
 341             if (!conn.hasAccessToken() && force_auth == 'force') {
 342               SaveManager.ensureAccess(onAccessChecked, conn);
 343             }
 344
 345             // show help dialog on startup, if required
 346             // show_help == always => on every startup
 347             // show_help == once => show on first startup only
 348             var show_help:String = loaderInfo.parameters["show_help"];
 349
 350             if (show_help == 'always' || (show_help == 'once' && obj.data["help_shown"] != "true")) {
 351               new HelpDialog().init();
 352             }
 353
 354             // Check if Tiger highlighting should be enabled from saved object
 355             Globals.vars.highlightTiger = obj.data['tiger_highlighted'];
 356                 }
 357
 358                 public function onMapError(mapEvent:MapEvent):void {
 359                         var buttons:uint=0;
 360                         if (mapEvent.params.yes             ) buttons|=mx.controls.Alert.YES;
 361                         if (mapEvent.params.no              ) buttons|=mx.controls.Alert.NO;
 362                         if (mapEvent.params.cancel          ) buttons|=mx.controls.Alert.CANCEL;
 363                         if (mapEvent.params.ok || buttons==0) buttons|=mx.controls.Alert.OK;
 364                         Alert.show(mapEvent.params.message, 'Error', buttons, null, function(closeEvent:CloseEvent):void {
 365                                 switch (closeEvent.detail) {
 366                                         case mx.controls.Alert.CANCEL:  mapEvent.params.cancel(); break; //fixme? this gets called if user presses escape, even if there's no cancel button.
 367                                         case mx.controls.Alert.YES:             mapEvent.params.yes(); break;
 368                                         case mx.controls.Alert.NO:              mapEvent.params.no(); break;
 369                                         default:                                                if (mapEvent.params.ok) mapEvent.params.ok();
 370                                 }
 371                         });
 372                 }
 373
 374                 /** Highlight an entity in response to an 'attention' event */
 375
 376                 public function onAttention(event:AttentionEvent):void {
 377                         var entity:Entity=event.entity;
 378                         if (entity is Relation) {
 379                                 // If it's a relation, just bring up the editor panel
 380                                 var panel:RelationEditorPanel = RelationEditorPanel(
 381                                         PopUpManager.createPopUp(Application(FlexGlobals.topLevelApplication), RelationEditorPanel, true));
 382                                 panel.setRelation(entity as Relation);
 383                                 PopUpManager.centerPopUp(panel);
 384                                 return;
 385                         }
 386
 387                         var lat:Number, lon:Number;
 388                         var panTo:Boolean=true;
 389                         if (entity is Way) {
 390                                 // If it's a way, find if it's on-screen
 391                                 for (var i:uint=0; i<Way(entity).length; i++) {
 392                                         var node:Node=Way(entity).getNode(i)
 393                                         if (node.within(theMap.edge_l,theMap.edge_r,theMap.edge_t,theMap.edge_b)) { panTo=false; }
 394                                         lat=node.lat; lon=node.lon;
 395                                 }
 396                         } else if (entity is Node) {
 397                                 // If it's a node, check if it's on-screen
 398                                 if (entity.within(theMap.edge_l,theMap.edge_r,theMap.edge_t,theMap.edge_b)) { panTo=false; }
 399                                 lat=Node(entity).lat; lon=Node(entity).lon;
 400                         }
 401                         // Pan if required, and select the object
 402                         if (panTo) { theMap.moveMapFromLatLon(lat,lon); }
 403                         theController.setState(theController.findStateForSelection([entity]));
 404                 }
 405
 406                 /** Display floating warning in response to an 'alert' event */
 407
 408                 public function onAlert(event:AttentionEvent):void {
 409                         var alert:FloatingAlert=new FloatingAlert(event.message);
 410                         stage.addChild(alert);
 411                 }
 412
 413         public function onResizeMap():void {
 414             if ( theMap != null )
 415                 theMap.updateSize(map_area.width, map_area.height);
 416
 417                         if (toolbox) {
 418                                 toolbox.x=Math.min(toolbox.x,stage.stageWidth-toolbox.width-5);
 419                                 toolbox.y=Math.min(toolbox.y,stage.stageHeight-toolbox.height-5);
 420                         }
 421         }
 422                 private function bumpHandler(e:MapEvent):void {
 423                         if (toolbox) {
 424                                 toolbox.y=Math.min(toolbox.y,stage.stageHeight-toolbox.height-10-e.params.y);
 425                         }
 426                 }
 427
 428         private function mouseoverHandler(e:MapEvent):void {
 429             if (coordsbox.visible) {
 430                 coordsbox.text= Number(e.params.x).toFixed(5) + "\n " + Number(e.params.y).toFixed(5); // Not sure if 5 dp's really required.
 431             }
 432         }
 433
 434         private function onDataStart(event:Event):void {
 435                         switch (event.type) {
 436                                 case Connection.LOAD_STARTED:   loadcount++; break;
 437                                 case Connection.SAVE_STARTED:   savecount++; break;
 438                         }
 439                         updateDataWorking();
 440         }
 441         private function onDataComplete(event:Event):void {
 442                         switch (event.type) {
 443                                 case Connection.LOAD_COMPLETED: loadcount--; break;
 444                                 case Connection.SAVE_COMPLETED: savecount--; break;
 445                         }
 446             updateDataWorking();
 447         }
 448                 private function updateDataWorking():void {
 449                         var t:String;
 450                         if (loadcount>0 && savecount>0) { t="Loading/saving#..."; }
 451                         else if (loadcount>0)           { t="Loading data#..."; }
 452                         else if (savecount>0)           { t="Saving data..."; }
 453                         else                            { t=""; }
 454                         dataWorking.text=t.replace("#",(loadcount>1) ? (" ("+loadcount+")") : "");
 455
 456                         var previousState:Boolean=dataWorking.visible;
 457                         var newState:Boolean=(dataWorking.text!="");
 458                         if (!previousState && newState) spinner.start();
 459                         if (previousState && !newState) spinner.stop();
 460                         dataWorking.visible=newState;
 461                 }
 462         private function onDataDirty(event:Event):void {
 463                         saveButton.enabled=true;
 464             if (ExternalInterface.available) {
 465               ExternalInterface.call("markChanged", false);
 466             }
 467                         if (!saveTimer || !saveTimer.running) {
 468                                 saveTimer=new Timer(60*1000,0);
 469                                 saveTimer.addEventListener(TimerEvent.TIMER,saveTimeUpdate);
 470                                 saveTimer.start();
 471                         }
 472                 }
 473                 private function onDataClean(event:Event):void {
 474                         saveButton.enabled=false;
 475             if (ExternalInterface.available) {
 476               ExternalInterface.call("markChanged", true);
 477             }
 478             if (saveTimer && saveTimer.running) {
 479                                 saveTimer.stop();
 480                                 saveTimer.removeEventListener(TimerEvent.TIMER,saveTimeUpdate);
 481                                 saveTimeWrite(0);
 482                         }
 483                 }
 484                 private function saveTimeUpdate(event:TimerEvent):void {
 485                         var timer:Timer=Timer(event.target);
 486                         saveTimeWrite(uint(timer.delay*timer.currentCount/1000/60));
 487                 }
 488                 private function saveTimeWrite(minutes:uint):void {
 489                         if (minutes<5) {
 490                                 saveButton.label=saveLabel;
 491                         } else {
 492                                 saveButton.label=saveLabel+" ("+minutes+"m"+")";
 493                                 if (minutes>=20 && minutes/5==int(minutes/5)) {
 494                                         theController.dispatchEvent(new AttentionEvent(AttentionEvent.ALERT, null, minutes+"m since last save - please save regularly"));
 495                                 }
 496                         }
 497                 }
 498
 499                 private function scaleHandler(event:MapEvent):void {
 500                         dispatchEvent(new Event("rescale"));
 501                 }
 502
 503                 [Bindable(event="rescale")]
 504                 private function getScale():String {
 505                         return String(theMap.scale);
 506                 }
 507
 508         private function dragEnterHandler(event:DragEvent):void {
 509             // Get the drop target component from the event object.
 510             var dropTarget:Canvas=event.currentTarget as Canvas;
 511             // Accept the drag only if the user is dragging poi with tags
 512             if (event.dragSource.hasFormat('tags'))
 513             {
 514                 DragManager.acceptDragDrop(dropTarget);
 515             }
 516         }
 517
 518         private function dragDropHandler(event:DragEvent):void {
 519                         // Deselect the dragged icon
 520                         if (event.dragSource.dataForFormat('container')) {
 521                                 event.dragSource.dataForFormat('container').selectedItem=-1;
 522                         }
 523
 524                         // Get the tags
 525             var tags:Array = event.dragSource.dataForFormat('tags') as Array;
 526
 527             // If you dnd quick enough, this exposes a flex bug and event.stageX/Y become negative.
 528             // Take the mouse positions from a displayObject's stage for consistent results.
 529             var mapLoc:Point = Globals.vars.root.globalToLocal(new Point(event.target.stage.mouseX, event.target.stage.mouseY));
 530             var lat:Number = Globals.vars.root.coord2lat(mapLoc.y);
 531             var lon:Number = Globals.vars.root.coord2lon(mapLoc.x);
 532
 533             var createAction:CompositeUndoableAction = new CompositeUndoableAction("Create POI");
 534
 535                         var conn:Connection = theMap.editableLayer.connection;
 536             var node:Node = conn.createNode({}, lat, lon, createAction.push);
 537             for each ( var tag:Object in tags ) {
 538                 node.setTag(tag.k, tag.v, createAction.push);
 539             }
 540                         conn.registerPOI(node);
 541                         MainUndoStack.getGlobalStack().addAction(createAction);
 542             theController.setState(new SelectedPOINode(node));
 543         }
 544
 545         /* Called when forcing an initial access token check. */
 546         private function onAccessChecked():void {
 547             // Floaty panel message "You now have access";
 548         }
 549
 550         private function loadTrace(id:Number):void {
 551                         var conn:Connection = theMap.editableLayer.connection;
 552                         conn.addEventListener(Connection.TRACES_LOADED, function (e:Event):void {
 553                                 var t:Trace = conn.findTrace(id);
 554                                 if (!t) { t=new Trace(conn,id); conn.addTrace(t); }
 555                                 t.addToMap();
 556                                 conn.removeEventListener(Connection.TRACES_LOADED, arguments.callee);
 557                         });
 558                         conn.fetchUserTraces();
 559         }
 560
 561         ]]></fx:Script>
 562
 563 </mx:Application>
 564