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