net/systemeD/potlatch2/TagViewer.mxml

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <mx:VBox
   3     xmlns:fx="http://ns.adobe.com/mxml/2009"
   4         xmlns:mx="library://ns.adobe.com/flex/mx"
   5         xmlns:flexlib="flexlib.containers.*"
   6         xmlns:controls="net.systemeD.controls.*"
   7         xmlns:potlatch2="net.systemeD.potlatch2.*"
   8     xmlns:sidepanel="net.systemeD.potlatch2.panels.*"
   9         horizontalScrollPolicy="off"
  10     backgroundColor="white"
  11     initialize="loadFeatures()">
  12
  13 <mx:ViewStack id="sidebar" width="100%" height="100%" creationPolicy="all">
  14
  15   <!-- Drag & drop icon panel -->
  16
  17   <mx:VBox id="dndPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
  18     <mx:Text id="dndPanelText" text="{dndPrompt}" width="100%" styleName="helpInfo" />
  19         <mx:Repeater id="dndRep" dataProvider="{MapFeatures.getInstance().getCategoriesForType('point')}" styleName="dndRepeater">
  20                 <mx:HBox width="100%" styleName="dndPanelCategory">
  21                         <mx:Label text="{dndRep.currentItem.name}:" styleName="dndPanelCategoryLabel"/>
  22                 </mx:HBox>
  23
  24                 <mx:TileList dataProvider="{dndRep.currentItem.getFeaturesForType('point', true)}" width="100%" height="1"
  25                                      rowHeight="32" columnWidth="32" updateComplete="resizePOIGrid(event)" styleName="dndPanelTileList">
  26                         <mx:itemRenderer>
  27                                 <fx:Component>
  28                                         <mx:VBox toolTip="{data.name}">
  29                                                 <fx:Script><![CDATA[
  30                                                         import mx.events.DragEvent;
  31                                                         import mx.managers.DragManager;
  32                                                         import mx.core.DragSource;
  33
  34                                                         private function dragPOI(event:MouseEvent, tags:Array):void {
  35                                                                 // Get the drag initiator component from the event object.
  36                                                                 var dragInitiator:Image = event.currentTarget as Image;
  37                                                                 var dragSource:DragSource = new DragSource();
  38                                                                 dragSource.addData(tags, 'tags');
  39                                                                 dragSource.addData(event.target.parent.parent.parent.parent, 'container');
  40
  41                                                                 var dragProxy:Image = new Image();
  42                                                                 dragProxy.source = dragInitiator.source;
  43                                                                 dragProxy.width = dragInitiator.width;   // must set width and height explicitly
  44                                                                 dragProxy.height = dragInitiator.height; // for non-embedded images
  45                                                                 DragManager.doDrag(dragInitiator, dragSource, event, dragProxy);
  46                                                         }
  47                                                 ]]></fx:Script>
  48                                                 <mx:Image id="foo" source="{data.dndimage}" height="24" width="24" mouseMove="dragPOI(event, data.tags)" toolTip="{data.name}" />
  49                                         </mx:VBox>
  50                                 </fx:Component>
  51                         </mx:itemRenderer>
  52                 </mx:TileList>
  53         </mx:Repeater>
  54   </mx:VBox>
  55
  56   <!-- Standard tagging panel -->
  57
  58   <mx:VBox id="tagsPanel" width="100%" height="100%" creationPolicy="auto">
  59     <mx:ViewStack id="stack" width="100%" height="100%">
  60       <mx:VBox width="100%" height="100%" label="Simple" id="editorContainer" creationComplete="initEditorStackUIs()" styleName="dndPanelVbox">
  61         <mx:VBox width="100%" verticalGap="1" styleName="dndTagHeader">
  62           <mx:HBox width="100%" id="iconContainer" styleName="featureSelector">
  63             <mx:Image id="iconImage"/>
  64             <mx:Text condenseWhite="true" width="100%" id="iconText" styleName="dndIconText"/>
  65           </mx:HBox>
  66           <mx:HBox width="100%">
  67             <mx:PopUpButton id="popupChange" openAlways="true" width="100%" styleName="dndTagPopUpMenu" closeDuration="0" />
  68             <mx:LinkButton icon="@Embed('../../../embedded/information.svg')" click="openDescription()" id="helpLabel" styleName="helpInfo"/>
  69           </mx:HBox>
  70         </mx:VBox>
  71       </mx:VBox>
  72       <mx:VBox width="100%" height="100%" label="Advanced" id="advancedContainer" initialize="checkAdvanced()" verticalGap="1">
  73         <mx:Label id="advancedID" click="openEntityPage()">
  74           <mx:htmlText><![CDATA[<i>No Selection</i>]]></mx:htmlText>
  75         </mx:Label>
  76
  77                 <potlatch2:TagGrid id="advancedTagGrid" width="100%" height="75%" />
  78
  79         <mx:HBox horizontalAlign="right" width="100%">
  80           <mx:LinkButton label="Delete" click="advancedTagGrid.removeTag()" id="advancedDeleteButton" enabled="{advancedTagGrid.selectedItem != null? true : false}"/>
  81           <mx:LinkButton label="Add" click="advancedTagGrid.addNewTag()" id="advancedAddButton"/>
  82         </mx:HBox>
  83
  84         <mx:DataGrid editable="true" width="100%" height="25%" id="relationsGrid"
  85             doubleClickEnabled="true"
  86             itemDoubleClick="editRelation(relationsGrid.selectedItem.id)"
  87             doubleClick="if (event.target.parent==relationsGrid) { addToRelation(); }">
  88             <mx:columns>
  89                 <mx:DataGridColumn editable="false" dataField="description" headerText="Relation"/>
  90                 <mx:DataGridColumn editable="false" dataField="id_idx" headerText="ID"/>
  91                 <mx:DataGridColumn editable="true" dataField="role" headerText="Role">
  92                     <mx:itemEditor><fx:Component><mx:TextInput restrict="&#x0020;-&#x10FFFF;" /></fx:Component></mx:itemEditor>
  93                 </mx:DataGridColumn>
  94                                 <mx:DataGridColumn width="20" editable="false">
  95                                         <mx:itemRenderer>
  96                                                 <fx:Component>
  97                                     <mx:HBox horizontalAlign="center" verticalAlign="middle">
  98                                                                 <mx:PopUpButton arrowButtonWidth="12" paddingLeft="0" paddingRight="0" width="12" height="12"
  99                                                                                 open="{outerDocument.updateRelationMenu(event);}"
 100                                                                                 creationComplete="{outerDocument.createRelationMenu(PopUpButton(event.target));}"/>
 101                                                         </mx:HBox>
 102                                                 </fx:Component>
 103                                         </mx:itemRenderer>
 104                                 </mx:DataGridColumn>
 105             </mx:columns>
 106         </mx:DataGrid>
 107
 108         <mx:HBox horizontalAlign="right" width="100%">
 109           <mx:LinkButton label="Remove from" click="removeFromRelation(relationsGrid.selectedItem.id, relationsGrid.selectedItem.index)"
 110                           enabled="{relationsGrid.selectedItem != null? true : false}"/>
 111           <mx:LinkButton label="Add to" click="addToRelation()"/>
 112         </mx:HBox>
 113
 114       </mx:VBox>
 115
 116       <mx:VBox width="100%" height="100%" label="Members" id="membersVBox" initialize="checkMembers()" verticalGap="1">
 117         <mx:Label id="membersText" text="Relation Members"/>
 118         <mx:DataGrid editable="true" width="100%" height="100%" id="membersGrid"
 119                       dragEnabled="true" dragMoveEnabled="true" dropEnabled="true">
 120           <mx:columns>
 121             <mx:DataGridColumn editable="false" dataField="type" headerText="Type"/>
 122             <mx:DataGridColumn editable="false" dataField="id" headerText="ID"/>
 123             <mx:DataGridColumn editable="true" dataField="role" headerText="Role">
 124                                 <mx:itemEditor><fx:Component><mx:TextInput restrict="&#x0020;-&#x10FFFF;" /></fx:Component></mx:itemEditor>
 125                         </mx:DataGridColumn>
 126           </mx:columns>
 127         </mx:DataGrid>
 128       </mx:VBox>
 129
 130       </mx:ViewStack>
 131
 132           <mx:HBox width="100%">
 133                 <mx:LinkBar dataProvider="{stack}"/>
 134                 <mx:Spacer width="100%"/>
 135                 <mx:LinkButton
 136                         icon="@Embed('../../../embedded/view_tabbed.png')"
 137                         disabledIcon="@Embed('../../../embedded/view_tabbed_disabled.png')"
 138                         click="setEditorStackUI(true)" id="tabNavigatorLabel" paddingTop="6"
 139                         toolTip="Show in tabs"
 140                         enabled="{editorStack is Accordion &amp;&amp; stack.selectedIndex==0}" />
 141                 <mx:LinkButton
 142                         icon="@Embed('../../../embedded/view_accordion.png')"
 143                         disabledIcon="@Embed('../../../embedded/view_accordion_disabled.png')"
 144                         click="setEditorStackUI(false)" id="accordionLabel" paddingTop="6"
 145                         toolTip="Show in sliding windows"
 146                         enabled="{editorStack is TabNavigator &amp;&amp; stack.selectedIndex==0}" />
 147           </mx:HBox>
 148   </mx:VBox>
 149
 150   <!-- Multiple selection -->
 151
 152   <mx:VBox id="multiplePanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 153     <potlatch2:TagGrid id="multiAdvancedTagGrid" width="100%" height="75%" />
 154         <mx:HBox horizontalAlign="right" width="100%">
 155           <mx:LinkButton label="Delete" click="multiAdvancedTagGrid.removeTag()" enabled="{multiAdvancedTagGrid.selectedItem != null? true : false}"/>
 156           <mx:LinkButton label="Add" click="multiAdvancedTagGrid.addNewTag()" />
 157         </mx:HBox>
 158
 159     <mx:DataGrid editable="true" width="100%" height="25%" id="multiRelationsGrid"
 160         doubleClickEnabled="true"
 161         itemDoubleClick="editRelation(multiRelationsGrid.selectedItem.id)"
 162         doubleClick="if (event.target.parent==multiRelationsGrid) { addToRelation(); }">
 163         <mx:columns>
 164             <mx:DataGridColumn editable="false" dataField="description" headerText="Relation"/>
 165             <mx:DataGridColumn editable="false" dataField="id_idx" headerText="ID"/>
 166             <mx:DataGridColumn editable="true" dataField="role" headerText="Role">
 167                 <mx:itemEditor><fx:Component><mx:TextInput restrict="&#x0020;-&#x10FFFF;" /></fx:Component></mx:itemEditor>
 168             </mx:DataGridColumn>
 169                         <mx:DataGridColumn width="20" editable="false">
 170                                 <mx:itemRenderer>
 171                                         <fx:Component>
 172                             <mx:HBox horizontalAlign="center" verticalAlign="middle">
 173                                                         <mx:PopUpButton arrowButtonWidth="12" paddingLeft="0" paddingRight="0" width="12" height="12"
 174                                                                         open="{outerDocument.updateRelationMenu(event);}"
 175                                                                         creationComplete="{outerDocument.createRelationMenu(PopUpButton(event.target));}"/>
 176                                                 </mx:HBox>
 177                                         </fx:Component>
 178                                 </mx:itemRenderer>
 179                         </mx:DataGridColumn>
 180         </mx:columns>
 181     </mx:DataGrid>
 182     <mx:HBox horizontalAlign="right" width="100%">
 183       <mx:LinkButton label="Remove from" click="removeFromRelation(multiRelationsGrid.selectedItem.id)"
 184                       enabled="{multiRelationsGrid.selectedItem != null? true : false}"/>
 185       <mx:LinkButton label="Add to" click="addToRelation()"/>
 186     </mx:HBox>
 187
 188   </mx:VBox>
 189
 190   <!-- Multiple selection but items cannot be edited -->
 191
 192   <mx:VBox id="multipleInvalidPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 193         <mx:Text id="multipleInvalidPanelText" text="You have selected multiple items." width="100%" styleName="helpInfo" />
 194   </mx:VBox>
 195
 196   <!-- Generic marker panel -->
 197
 198   <mx:VBox id="markerPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 199     <sidepanel:MarkerPanel id="markerPanelContents" width="100%"/>
 200   </mx:VBox>
 201
 202   <!-- Bug editing panel -->
 203
 204   <mx:VBox id="bugPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 205     <sidepanel:BugPanel id="bugPanelContents" width="100%"/>
 206   </mx:VBox>
 207
 208   <!-- Background layer selection -->
 209
 210   <mx:VBox id="backgroundPanel" width="100%" height="100%" horizontalScrollPolicy="off" styleName="dndPanelVbox">
 211     <sidepanel:BackgroundPanel id="backgroundPanelContents" width="100%"/>
 212   </mx:VBox>
 213
 214 </mx:ViewStack>
 215
 216   <fx:Script><![CDATA[
 217       import net.systemeD.halcyon.connection.*;
 218       import net.systemeD.halcyon.MapPaint;
 219       import net.systemeD.potlatch2.mapfeatures.*;
 220       import net.systemeD.potlatch2.utils.*;
 221
 222       import mx.collections.*;
 223       import mx.containers.*;
 224       import mx.events.*;
 225       import mx.core.*;
 226       import mx.managers.PopUpManager;
 227       import mx.controls.Menu;
 228       import mx.controls.Alert;
 229       import flash.geom.Point;
 230       import flash.net.*;
 231       import mx.events.DragEvent;
 232       import mx.managers.DragManager;
 233       import mx.core.DragSource;
 234       import mx.controls.TabBar;
 235 //    import flexlib.containers.SuperTabNavigator;
 236
 237       [Bindable] [Embed(source="../../../embedded/tab_basic.png"       )] private var tabIconBasic:Class;
 238       [Bindable] [Embed(source="../../../embedded/tab_address.png"     )] private var tabIconAddress:Class;
 239       [Bindable] [Embed(source="../../../embedded/tab_cycle.png"       )] private var tabIconCycle:Class;
 240       [Bindable] [Embed(source="../../../embedded/tab_details.png"     )] private var tabIconDetails:Class;
 241       [Bindable] [Embed(source="../../../embedded/tab_restrictions.png")] private var tabIconRestrictions:Class;
 242       [Bindable] [Embed(source="../../../embedded/tab_transport.png"   )] private var tabIconTransport:Class;
 243       [Bindable] [Embed(source="../../../embedded/tab_walk.png"        )] private var tabIconWalk:Class;
 244       private var tabIcons:Object= { Basic:tabIconBasic, Details:tabIconDetails, Address:tabIconAddress, Walk:tabIconWalk, Cycle:tabIconCycle,
 245                                          Transport:tabIconTransport, Restrictions:tabIconRestrictions};
 246
 247       [Bindable]
 248       public var dndPrompt:String="Add new points by dragging them onto the map";
 249
 250       private var editorStackTabNavigator:TabNavigator;
 251       private var editorStackAccordion:Accordion;
 252       [Bindable] private var editorStack:Container;
 253
 254       public var mapFeatures:MapFeatures;
 255       private var selectedEntity:Entity;
 256       private var connection:Connection;
 257       private var currentCategorySelector:CategorySelector;
 258       private var categorySelectors:Object = {};        // hash of categorySelectors for each limitType
 259       private var feature:Feature = null;
 260
 261       private var rowData:Object;               // relation membership reference, needed so it's accessible from relation actions menu
 262
 263           public function setEntity(entities:Array, layer:MapPaint=null):void {
 264                 UIComponent.suspendBackgroundProcessing();
 265                 connection=null;
 266
 267                 var firstSelected:Entity=null;
 268                 if (entities.length==1) { firstSelected=entities[0]; }
 269
 270                 if (selectedEntity!=firstSelected && selectedEntity!=null) {
 271                         selectedEntity.removeEventListener(Connection.TAG_CHANGED, tagChanged);
 272                         selectedEntity.removeEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 273                         selectedEntity.removeEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 274                 }
 275
 276                 if (entities.length==0) {
 277                         // Nothing selected, so show drag-and-drop panel
 278                         sidebar.selectedChild = dndPanel;
 279
 280                 } else if (entities.length==1) {
 281                         // Single entity selected, so show tag panel
 282                         selectedEntity=firstSelected;
 283                         connection=firstSelected.connection;
 284                         if (selectedEntity!=null) { selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged); }
 285                         if (advancedID!=null) { setupAdvanced(firstSelected); }
 286                         if (firstSelected is Relation) { stack.addChild(membersVBox); }
 287             if (selectedEntity is Marker && connection is BugConnection) {
 288               bugPanelContents.init(selectedEntity, BugConnection(connection));
 289               sidebar.selectedChild = bugPanel;
 290             } else if (selectedEntity is Marker) {
 291               markerPanelContents.init(selectedEntity, layer);
 292               sidebar.selectedChild = markerPanel;
 293             } else if (connection is SnapshotConnection) {
 294               backgroundPanelContents.init(selectedEntity, layer);
 295               sidebar.selectedChild = backgroundPanel;
 296             } else {
 297               refreshFeatureIcon();
 298               initialiseEditors();
 299               sidebar.selectedChild = tagsPanel;
 300             }
 301
 302                 } else if(isMultipleEditable(entities)) {
 303                         selectedEntity = new EntityCollection(entities);
 304                         selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged);
 305             sidebar.selectedChild = multiplePanel;
 306                         setupMultiAdvanced(selectedEntity);
 307                         connection=entities[0].connection;
 308
 309                 } else {
 310                         //The selection contains elements which can't be edited all together.
 311                         sidebar.selectedChild = multipleInvalidPanel;
 312                 }
 313                 UIComponent.resumeBackgroundProcessing();
 314       }
 315
 316       private function refreshFeatureIcon():void {
 317           var oldFeature:Feature = feature;
 318           feature = selectedEntity == null ? null : mapFeatures.findMatchingFeature(selectedEntity);
 319           if ( feature != oldFeature ) {
 320               if ( oldFeature != null )
 321                   oldFeature.removeEventListener("imageChanged", featureImageChanged);
 322               if ( feature != null )
 323                   feature.addEventListener("imageChanged", featureImageChanged);
 324           }
 325           setCategorySelector(selectedEntity, feature);
 326       }
 327
 328       private function featureImageChanged(event:Event):void {
 329           setCategorySelector(selectedEntity, feature);
 330       }
 331
 332       /** Set the icon, categorySelector and help text for the current entity. */
 333       private function setCategorySelector(entity:Entity, feature:Feature):void {
 334                         // Remove the "user has selected something" event listener from previous categorySelector,
 335                         // and make it invisible because Flex is crap at updating click areas otherwise
 336                         if (currentCategorySelector) {
 337                                 currentCategorySelector.removeEventListener("selectedType", changeFeatureType);
 338                                 currentCategorySelector.visible=false;
 339                         }
 340
 341                         // Have we cached the categorySelector for this limitType? If not, create one
 342                         var lt:String=limitType(entity);
 343                         if (!categorySelectors[lt]) {
 344                                 categorySelectors[lt]=new CategorySelector();
 345                                 categorySelectors[lt].setLimitTypes(lt);
 346                         }
 347                         currentCategorySelector=categorySelectors[lt];
 348                         currentCategorySelector.addEventListener("selectedType", changeFeatureType, false, 0, true);
 349
 350                         // Update surrounding icon/text display
 351                         if (feature) {
 352                                 iconImage.source = feature.image;
 353                                 iconText.htmlText = feature.htmlDetails(entity);
 354                                 popupChange.label = feature.name;
 355                                 helpLabel.visible = feature.hasHelpURL();
 356                                 currentCategorySelector.setSelectedFeature(feature);
 357                         } else {
 358                                 iconImage.source = null;
 359                                 popupChange.label = "unknown";
 360                                 helpLabel.visible = false;
 361                                 if (entity==null) {
 362                                         iconText.htmlText = "<i>Nothing selected</i>";
 363                                 } else if (entity.hasTags()) {
 364                                         iconText.htmlText = "<b>Not recognised</b><br/><font size='10pt'>Try looking at the tags under the advanced properties</font>";
 365                                 } else {
 366                                         iconText.htmlText = "<b>No tags set</b><br/><font size='10pt'>Please use the menu below to define what this "+entity.getType()+" is</font>";
 367                                 }
 368                                 currentCategorySelector.setSelectedFeature(null);
 369                         }
 370
 371                         // Set it as the popup, and make sure it's visible
 372                         popupChange.popUp=currentCategorySelector;
 373                         currentCategorySelector.visible=true;
 374       }
 375
 376           private function isMultipleEditable(entities:Array):Boolean {
 377                 for each(var entity:Entity in entities) {
 378                         if(!(entity is Node || entity is Way))
 379                                 return false;
 380                 }
 381                 return true;
 382           }
 383
 384       private function limitType(entity:Entity):String {
 385           if      (entity is Node    ) return "point";
 386           else if (entity is Way     ) return Way(entity).isArea() ? "area" : "line";
 387           else if (entity is Relation) return "relation";
 388           return null;
 389       }
 390
 391       private var tabComponents:Object = {};
 392
 393       private function initialiseEditors():void {
 394           editorStack.removeAllChildren();
 395           if ( selectedEntity == null || feature == null )
 396               return;
 397
 398           var editorBox:VBox = createEditorBox();
 399           editorBox.label = "Basic";
 400           editorBox.icon=tabIconBasic;
 401           editorStack.addChild(editorBox);
 402
 403           var tabs:Object = {};
 404           tabComponents = {};
 405
 406           // ** FIXME: we should do this so that the tabs are always in the same order
 407           for each (var factory:EditorFactory in feature.editors) {
 408               if ( factory.presence.isEditorPresent(factory, selectedEntity, null) ) {
 409                   var editor:DisplayObject = factory.createEditorInstance(selectedEntity);
 410                   if ( editor != null )
 411                       editorBox.addChild(editor);
 412               }
 413               var category:String = factory.category;
 414               if (category!='') {
 415                       var tab:VBox = tabs[category];
 416                       if ( tab == null) {
 417                           tab = createEditorBox();
 418                           tab.label = category;
 419                           if (tabIcons[category]) tab.icon=tabIcons[category];
 420                           editorStack.addChild(tab);
 421                           tabs[category] = tab;
 422                           tabComponents[tab] = [];
 423                       }
 424                       var catEditor:DisplayObject = factory.createEditorInstance(selectedEntity);
 425                       if ( catEditor != null )
 426                           tabComponents[tab].push(catEditor);
 427                       //    tab.addChild(catEditor);
 428               }
 429           }
 430       }
 431
 432       private function createEditorBox():VBox {
 433           var box:VBox = new VBox();
 434           box.percentWidth = 100;
 435           box.percentHeight = 100;
 436           box.styleName = "dndEditorContainer";
 437           return box;
 438       }
 439
 440       private function ensureEditorsPopulated(tab:VBox):void {
 441           var components:Array = tabComponents[tab];
 442           if ( components == null || tab == null || tab.numChildren >= components.length )
 443               return;
 444           for each (var component:DisplayObject in components ) {
 445               tab.addChild(component);
 446           }
 447       }
 448
 449         private function initEditorStackUIs():void {
 450                 editorStackTabNavigator = new TabNavigator();
 451 //              editorStackTabNavigator.allowTabSqueezing=false;
 452 //              editorStackTabNavigator.minTabWidth=10;
 453 //              editorStackTabNavigator.closePolicy="close_never";
 454 //              editorStackTabNavigator.scrollSpeed=20;
 455                 editorStackTabNavigator.creationPolicy="auto";
 456                 editorStackTabNavigator.percentWidth=100;
 457                 editorStackTabNavigator.percentHeight=100;
 458                 editorStackTabNavigator.styleName="dndStackTab";
 459 //              editorStackTabNavigator.popUpButtonPolicy="off"
 460
 461
 462                 editorStackAccordion = new Accordion();
 463                 editorStackAccordion.percentWidth=100;
 464                 editorStackAccordion.percentHeight=100;
 465                 editorStackAccordion.creationPolicy="auto";
 466                 editorStackAccordion.styleName="dndStackAccordion";
 467                 /* FIXME: the accordion icons should be right-aligned. See:
 468                 http://www.kristoferjoseph.com/blog/2008/11/06/positioning-the-flex-accordion-header-icon
 469                 http://blog.flexexamples.com/2007/09/13/changing-text-alignment-in-an-flex-accordion-header/
 470                 */
 471
 472                 setEditorStackUI(true);
 473         }
 474
 475         private function setEditorStackUI(isTabbed:Boolean):void {
 476                 var children:Array=[]; var i:uint;
 477
 478                 if (editorStack) {
 479                         // blank existing component
 480                         editorStack.removeEventListener("change",editorStackUIChange);
 481                         editorStack.removeEventListener("updateComplete",editorStackUIUpdate);
 482                         editorStack.removeAllChildren();
 483                         editorContainer.removeChildAt(1);
 484                 }
 485
 486                 // replace with new component
 487                 editorStack = (isTabbed ? editorStackTabNavigator : editorStackAccordion) as Container;
 488                 editorContainer.addChild(editorStack);
 489
 490                 // re-add children and listeners
 491                 initialiseEditors();
 492                 editorStack.addEventListener("change",editorStackUIChange);
 493                 editorStack.addEventListener("updateComplete",editorStackUIUpdate);
 494         }
 495
 496         private function editorStackUIChange(event:Event):void {
 497                 ensureEditorsPopulated(IndexChangedEvent(event).relatedObject as VBox);
 498         }
 499
 500         private function editorStackUIUpdate(event:Event):void {
 501                 if (editorStack is TabNavigator) {
 502                         var e:TabNavigator = editorStack as TabNavigator;
 503                         if (e.selectedIndex<0) { return; }
 504                         for (var i:uint=0; i<e.numChildren; i++) {
 505                                 e.getTabAt(i).selected=(i==e.selectedIndex);
 506                         }
 507                 }
 508         }
 509
 510
 511         public function togglePanel():void {
 512                 if (stack.selectedChild==editorContainer && selectedEntity!=null) {
 513                         stack.selectedChild=advancedContainer;
 514                 } else if (stack.selectedChild!=editorContainer) {
 515                         stack.selectedChild=editorContainer;
 516                 }
 517         }
 518
 519         public function selectAdvancedPanel():void {
 520                 checkAdvanced();
 521                 stack.selectedChild=advancedContainer;
 522         }
 523
 524       private function checkAdvanced():void {
 525           if ( selectedEntity != null )
 526              setupAdvanced(selectedEntity);
 527       }
 528
 529       private var listeningToRelations:Array = [];
 530
 531       private function setupAdvanced(entity:Entity):void {
 532                 if (!advancedTagGrid) advancedContainer.createComponentsFromDescriptors();      // if Flex hasn't created it, force it
 533                 advancedTagGrid.init(entity);
 534
 535                 if ( entity == null ) {
 536                         advancedID.htmlText = "";
 537                 } else {
 538                         var entityText:String = "xx";
 539                         if      ( entity is Node     ) entityText = "Node";
 540                         else if ( entity is Way      ) entityText = "Way";
 541                         else if ( entity is Relation ) entityText = "Relation";
 542                         advancedID.htmlText = entityText+": <b>"+entity.id+"</b>";
 543                 }
 544
 545                 removeRelationListeners();
 546
 547                 if ( entity == null ) {
 548                         relationsGrid.dataProvider = null;
 549                 } else {
 550                         resetRelationsGrid(entity);
 551                         entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
 552                         entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
 553                 }
 554       }
 555
 556           private function setupMultiAdvanced(entity:Entity):void {
 557                 multiAdvancedTagGrid.init(entity);
 558                 resetRelationsGrid(entity);
 559                 entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation, false, 0, true);
 560                 entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation, false, 0, true);
 561       }
 562
 563           public function addNewTag():void {
 564                 if (stack.selectedChild!=advancedContainer) { return; }
 565                 advancedTagGrid.addNewTag();
 566           }
 567
 568       private function addedToRelation(event:RelationMemberEvent):void {
 569          resetRelationsGrid(selectedEntity);
 570       }
 571
 572       private function removedFromRelation(event:RelationMemberEvent):void {
 573          resetRelationsGrid(selectedEntity);
 574       }
 575
 576       private function removeRelationListeners():void {
 577           for each( var rel:Relation in listeningToRelations ) {
 578               rel.removeEventListener(Connection.TAG_CHANGED, relationTagChanged);
 579               rel.removeEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 580               rel.removeEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 581           }
 582           listeningToRelations = [];
 583           if (relationsGrid) relationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 584           if (multiRelationsGrid) multiRelationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
 585       }
 586
 587       private function resetRelationsGrid(entity:Entity):void {
 588           removeRelationListeners();
 589
 590           var instance:DataGrid=relationsGrid;
 591           if (entity is EntityCollection) instance=multiRelationsGrid;
 592           var memberships:Array = entity.getRelationMemberships();
 593           for each (var m:Object in memberships) {
 594               m.relation.addEventListener(Connection.TAG_CHANGED, relationTagChanged);
 595               m.relation.addEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
 596               m.relation.addEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
 597               listeningToRelations.push(m.relation);
 598           }
 599           instance.dataProvider = memberships;
 600           instance.addEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged, false, -100);
 601       }
 602
 603       private function relationRoleChanged(event:DataGridEvent):void {
 604                 if (event.dataField != 'role') { return; }      // shouldn't really happen
 605
 606                 var relations:Array=event.currentTarget.dataProvider.toArray();
 607                 var props:Object=relations[event.rowIndex];
 608
 609                 var relation:Relation=props['relation'];
 610                 var newRole:String=event.itemRenderer.data['role'];
 611
 612                 if (selectedEntity is EntityCollection) {
 613                         for each (var entity:Entity in EntityCollection(selectedEntity).entities) {
 614                                 var indexes:Array=relation.findEntityMemberIndexes(entity);
 615                                 for each (var index:int in indexes) {
 616                                         relation.setMember(index, new RelationMember(entity,newRole), MainUndoStack.getGlobalStack().addAction);
 617                                 }
 618                         }
 619                 } else {
 620                         relation.setMember(props['index'], new RelationMember(selectedEntity,newRole), MainUndoStack.getGlobalStack().addAction);
 621                 }
 622       }
 623
 624       private function relationTagChanged(event:TagEvent):void {
 625           resetRelationsGrid(selectedEntity);
 626       }
 627
 628       private function entityRelationMemberChanged(event:RelationMemberEvent):void {
 629           resetRelationsGrid(selectedEntity);
 630       }
 631
 632       private function checkMembers():void {
 633           if (selectedEntity is Relation) {
 634             setupMembers(selectedEntity as Relation);
 635           }
 636       }
 637
 638       private function setupMembers(rel:Relation):void {
 639           var members:Array = [];
 640           for (var i:int=0 ; i<rel.length; i++) {
 641             var props:Object = {};
 642             var member:RelationMember = rel.getMember(i);
 643             props["id"] = member.entity.id;
 644             props["type"] = member.entity.getType();
 645             props["role"] = member.role;
 646
 647             members.push(props);
 648           }
 649           membersGrid.dataProvider = members;
 650           membersGrid.dataProvider.addEventListener('collectionChange', membersChange);
 651       }
 652
 653       private function membersChange(event:Event):void {
 654           // Dropping all the members and re-adding them isn't exactly optimal
 655           // but is at least robust for any kind of change.
 656           // Figuring out a better way is someone else's FIXME
 657
 658           var rel:Relation = selectedEntity as Relation;
 659           var action:CompositeUndoableAction = new CompositeUndoableAction("Rearrange relation members for "+rel);
 660
 661           // drop members
 662           for (var i:int=rel.length-1 ; i>=0; i--) {
 663             rel.removeMemberByIndex(i, action.push);
 664           }
 665
 666           // add members in new order
 667           for each(var memberObject:Object in membersGrid.dataProvider) {
 668             var e:Entity;
 669             var id:Number = memberObject.id;
 670                         switch (memberObject.type) {
 671                                 case 'node':            e = connection.getNode(id); break;
 672                 case 'way':                     e = connection.getWay(id); break;
 673                                 case 'relation':        e = connection.getRelation(id); break;
 674             }
 675             rel.appendMember(new RelationMember(e, memberObject.role), action.push);
 676           }
 677           MainUndoStack.getGlobalStack().addAction(action);
 678       }
 679
 680       private function editRelation(id:Number):void {
 681           var panel:RelationEditorPanel = RelationEditorPanel(
 682               PopUpManager.createPopUp(Application(FlexGlobals.topLevelApplication), RelationEditorPanel, true));
 683           panel.setRelation(connection.getRelation(id));
 684           PopUpManager.centerPopUp(panel);
 685       }
 686
 687         /** Create relation actions menu */
 688
 689         public function createRelationMenu(button:PopUpButton):void {
 690                 var menu:Menu = new Menu();
 691                 var dp:Object = [ {label: "Select all members"},
 692                                                   {label: "Deselect all members"},
 693                                                   {label: "Add selection to this relation", enabled: false},
 694                                                   {label: "Delete relation"} ];
 695                 menu.dataProvider = dp;
 696                 menu.addEventListener("itemClick", selectRelationMenu);
 697                 button.popUp = menu;
 698         }
 699
 700         /** Enable 'add selection to...' entry only if some of the selection isn't in the relation.
 701             Called each time the menu is clicked. */
 702
 703         public function updateRelationMenu(event:Event):void {
 704                 rowData=event.target.parent.data;       // this makes it accessible from selectRelationMenu
 705                 var menu:Menu = Menu(event.target.popUp);
 706                 var enable:Boolean = false;
 707                 if (selectedEntity != null && selectedEntity is EntityCollection) {
 708                         // Enable only if some entities aren't a member of the relation
 709                         enable=!rowData.universal;
 710                 }
 711                 if (enable==menu.dataProvider[2].enabled) return;
 712                 menu.dataProvider[2].enabled=enable;
 713                 menu.invalidateList();
 714         }
 715
 716         /** Do the action selected in the relation actions menu */
 717
 718         public function selectRelationMenu(event:MenuEvent):void {
 719                 var rel:Relation=rowData.relation;
 720                 var entities:Array;
 721                 var controller:EditController=FlexGlobals.topLevelApplication.theController;
 722                 switch (event.index) {
 723                         case 0: // Select all members
 724                                 entities=selectedEntity.entities.concat(rel.memberEntities);
 725                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return arr.indexOf(e) == i } );      // remove duplicates
 726                                 // ** FIXME: This is a really horrible way of changing the controller state
 727                                 controller.setState(controller.findStateForSelection(entities));
 728                                 break;
 729
 730                         case 1: // Deselect all members
 731                                 entities=selectedEntity.entities;
 732                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return !e.hasParent(rel) } );
 733                                 controller.setState(controller.findStateForSelection(entities));
 734                                 break;
 735
 736                         case 2: // Add selection to this relation
 737                                 var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 738                                 for each (var entity:Entity in selectedEntity.entities) {
 739                                         if (!entity.hasParent(rel)) {
 740                                                 rel.appendMember(new RelationMember(entity,''), undo.push);
 741                                         }
 742                                 }
 743                                 MainUndoStack.getGlobalStack().addAction(undo);
 744                                 break;
 745
 746                         case 3: // Delete relation
 747                                 Alert.show("Do you really want to delete the relation?","Are you sure?",Alert.YES | Alert.CANCEL,null,
 748                                         function(event:CloseEvent):void {
 749                                                 if (event.detail==Alert.CANCEL) return;
 750                                                 rel.remove(MainUndoStack.getGlobalStack().addAction);
 751                                         } );
 752                                 break;
 753                 }
 754         }
 755
 756       private function tagChanged(event:TagEvent):void {
 757           refreshFeatureIcon();
 758       }
 759
 760       public function loadFeatures():void {
 761           mapFeatures = MapFeatures.getInstance();
 762           stack.removeChild(membersVBox); // remove by default, will be added if relation
 763       }
 764
 765       /** Open up a new browser page, showing the help page as defined in Map Features XML file .*/
 766       public function openDescription():void {
 767           if ( feature != null && feature.hasHelpURL() )
 768               navigateToURL(new URLRequest(feature.helpURL), "potlatch_help");
 769       }
 770
 771       /** Open up a new browser page showing OSM's view of the current entity. */
 772       public function openEntityPage():void {
 773           if (selectedEntity != null && selectedEntity.id >= 0) {
 774               // This is slightly hard-coded, but not drastically. The ../s could be changed for string manipulation of the apiBase
 775               var urlBase:String = connection.apiBase + '../../browse/'
 776               navigateToURL(new URLRequest(urlBase+selectedEntity.getType()+'/'+selectedEntity.id), "potlatch_browse");
 777           }
 778       }
 779
 780       public function addToRelation():void {
 781           new RelationSelectPanel().init(selectedEntity,new Object());
 782       }
 783
 784       private function removeFromRelation(id:Number, index:int=-1):void {
 785                 var rel:Relation=connection.getRelation(id);
 786                 if (index>-1) {
 787                         rel.removeMemberByIndex(index, MainUndoStack.getGlobalStack().addAction);
 788                 } else if (selectedEntity is EntityCollection) {
 789                         var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
 790                         for each (var e:Entity in EntityCollection(selectedEntity).entities) rel.removeMember(e,undo.push);
 791                         MainUndoStack.getGlobalStack().addAction(undo);
 792                 }
 793       }
 794
 795       public function changeFeatureType(event:Event):void {
 796           if ( selectedEntity == null )
 797               return;
 798
 799           UIComponent.suspendBackgroundProcessing();
 800           var newFeature:Feature = currentCategorySelector.selectedType;
 801           var undoStack:Function = MainUndoStack.getGlobalStack().addAction;
 802           var action:CompositeUndoableAction = new CompositeUndoableAction(
 803                   "Set "+selectedEntity.getType()+" "+selectedEntity.id+" to "+newFeature.name);
 804                   selectedEntity.suspend();
 805
 806           // remove tags from the current feature
 807           if ( feature != null ) {
 808               for each( var oldtag:Object in feature.tags ) {
 809                   selectedEntity.setTag(oldtag["k"], null, action.push);
 810               }
 811           }
 812
 813           // set tags for new feature
 814           if ( newFeature != null ) {
 815               for each( var newtag:Object in newFeature.tags ) {
 816                   selectedEntity.setTag(newtag["k"], newtag["v"], action.push);
 817               }
 818           }
 819
 820                   selectedEntity.resume();
 821           undoStack(action);
 822           popupChange.close();
 823           initialiseEditors();
 824           UIComponent.resumeBackgroundProcessing();
 825       }
 826
 827         private function resizePOIGrid(event:Event):void {
 828                 var rows:Number=event.target.dataProvider.length/event.target.columnCount;
 829                 if (rows!=Math.floor(rows)) { rows=Math.floor(rows+1); }
 830                 event.target.height=rows*(event.target.rowHeight+1);
 831         }
 832   ]]></fx:Script>
 833 </mx:VBox>
 834