Merge branch 'master' into history
[potlatch2.git] / 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="new HistoryDialog().init(selectedEntity);">
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.history.HistoryDialog;
221       import net.systemeD.potlatch2.utils.*;
222       import net.systemeD.controls.CollapsiblePanel;
223
224       import mx.collections.*;
225       import mx.containers.*;
226       import mx.events.*;
227       import mx.core.*;
228       import mx.managers.PopUpManager;
229       import mx.controls.Menu;
230       import mx.controls.Alert;
231       import flash.geom.Point;
232       import flash.net.*;
233       import mx.events.DragEvent;
234       import mx.managers.DragManager;
235       import mx.core.DragSource;
236       import mx.controls.TabBar;
237 //    import flexlib.containers.SuperTabNavigator;
238
239       [Bindable] [Embed(source="../../../embedded/tab_basic.png"       )] private var tabIconBasic:Class;
240       [Bindable] [Embed(source="../../../embedded/tab_address.png"     )] private var tabIconAddress:Class;
241       [Bindable] [Embed(source="../../../embedded/tab_cycle.png"       )] private var tabIconCycle:Class;
242       [Bindable] [Embed(source="../../../embedded/tab_details.png"     )] private var tabIconDetails:Class;
243       [Bindable] [Embed(source="../../../embedded/tab_restrictions.png")] private var tabIconRestrictions:Class;
244       [Bindable] [Embed(source="../../../embedded/tab_transport.png"   )] private var tabIconTransport:Class;
245       [Bindable] [Embed(source="../../../embedded/tab_walk.png"        )] private var tabIconWalk:Class;
246       private var tabIcons:Object= { Basic:tabIconBasic, Details:tabIconDetails, Address:tabIconAddress, Walk:tabIconWalk, Cycle:tabIconCycle, 
247                                          Transport:tabIconTransport, Restrictions:tabIconRestrictions};
248
249       [Bindable]
250       public var dndPrompt:String="Add new points by dragging them onto the map";
251
252       private var editorStackTabNavigator:TabNavigator;
253       private var editorStackAccordion:Accordion;
254       [Bindable] private var editorStack:Container;
255
256       public var mapFeatures:MapFeatures;
257       private var selectedEntity:Entity;
258       private var connection:Connection;
259       private var currentCategorySelector:CategorySelector;
260       private var categorySelectors:Object = {};        // hash of categorySelectors for each limitType
261       private var feature:Feature = null;
262
263       private var rowData:Object;               // relation membership reference, needed so it's accessible from relation actions menu
264
265           public function setEntity(entities:Array, layer:MapPaint=null):void {
266                 UIComponent.suspendBackgroundProcessing();
267                 connection=null;
268
269                 var firstSelected:Entity=null;
270                 if (entities.length==1) { firstSelected=entities[0]; }
271
272                 if (selectedEntity!=firstSelected && selectedEntity!=null) {
273                         selectedEntity.removeEventListener(Connection.TAG_CHANGED, tagChanged);
274                         selectedEntity.removeEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
275                         selectedEntity.removeEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
276                 }
277
278                 if (entities.length==0) {
279                         // Nothing selected, so show drag-and-drop panel
280                         sidebar.selectedChild = dndPanel;
281
282                 } else if (entities.length==1) {
283                         // Single entity selected, so show tag panel
284                         selectedEntity=firstSelected;
285                         connection=firstSelected.connection;
286                         if (selectedEntity!=null) { selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged); }
287                         if (advancedID!=null) { setupAdvanced(firstSelected); }
288                         if (firstSelected is Relation) { stack.addChild(membersVBox); }
289             if (selectedEntity is Marker && connection is BugConnection) {
290               bugPanelContents.init(selectedEntity, BugConnection(connection));
291               sidebar.selectedChild = bugPanel;
292             } else if (selectedEntity is Marker) {
293               markerPanelContents.init(selectedEntity, layer);
294               sidebar.selectedChild = markerPanel;
295             } else if (connection is SnapshotConnection) {
296               backgroundPanelContents.init(selectedEntity, layer);
297               sidebar.selectedChild = backgroundPanel;
298             } else {
299               refreshFeatureIcon();
300               initialiseEditors();
301               sidebar.selectedChild = tagsPanel;
302             }
303
304                 } else if(isMultipleEditable(entities)) {
305                         selectedEntity = new EntityCollection(entities);
306                         selectedEntity.addEventListener(Connection.TAG_CHANGED, tagChanged);
307             sidebar.selectedChild = multiplePanel;
308                         setupMultiAdvanced(selectedEntity);
309                         connection=entities[0].connection;
310                         
311                 } else {
312                         //The selection contains elements which can't be edited all together.
313                         sidebar.selectedChild = multipleInvalidPanel;
314                 }
315                 UIComponent.resumeBackgroundProcessing();
316       }
317
318       private function refreshFeatureIcon():void {
319           var oldFeature:Feature = feature;
320           feature = selectedEntity == null ? null : mapFeatures.findMatchingFeature(selectedEntity);
321           if ( feature != oldFeature ) {
322               if ( oldFeature != null )
323                   oldFeature.removeEventListener("imageChanged", featureImageChanged);
324               if ( feature != null )
325                   feature.addEventListener("imageChanged", featureImageChanged);
326           }
327           setCategorySelector(selectedEntity, feature);
328       }
329
330       private function featureImageChanged(event:Event):void {
331           setCategorySelector(selectedEntity, feature);
332       }
333
334       /** Set the icon, categorySelector and help text for the current entity. */
335       private function setCategorySelector(entity:Entity, feature:Feature):void {
336                         // Remove the "user has selected something" event listener from previous categorySelector,
337                         // and make it invisible because Flex is crap at updating click areas otherwise
338                         if (currentCategorySelector) { 
339                                 currentCategorySelector.removeEventListener("selectedType", changeFeatureType);
340                                 currentCategorySelector.visible=false;
341                         }
342                         
343                         // Have we cached the categorySelector for this limitType? If not, create one
344                         var lt:String=limitType(entity);
345                         if (!categorySelectors[lt]) {
346                                 categorySelectors[lt]=new CategorySelector();
347                                 categorySelectors[lt].setLimitTypes(lt);
348                         }
349                         currentCategorySelector=categorySelectors[lt];
350                         currentCategorySelector.addEventListener("selectedType", changeFeatureType, false, 0, true);
351
352                         // Update surrounding icon/text display
353                         if (feature) {
354                                 iconImage.source = feature.image;
355                                 iconText.htmlText = feature.htmlDetails(entity);
356                                 popupChange.label = feature.name;
357                                 helpLabel.visible = feature.hasHelpURL();
358                                 currentCategorySelector.setSelectedFeature(feature);
359                         } else {
360                                 iconImage.source = null;
361                                 popupChange.label = "unknown";
362                                 helpLabel.visible = false;
363                                 if (entity==null) {
364                                         iconText.htmlText = "<i>Nothing selected</i>";
365                                 } else if (entity.hasTags()) {
366                                         iconText.htmlText = "<b>Not recognised</b><br/><font size='10pt'>Try looking at the tags under the advanced properties</font>";
367                                 } else {
368                                         iconText.htmlText = "<b>No tags set</b><br/><font size='10pt'>Please use the menu below to define what this "+entity.getType()+" is</font>";
369                                 }
370                                 currentCategorySelector.setSelectedFeature(null);
371                         }
372
373                         // Set it as the popup, and make sure it's visible
374                         popupChange.popUp=currentCategorySelector;
375                         currentCategorySelector.visible=true;
376       }
377
378           private function isMultipleEditable(entities:Array):Boolean {
379                 for each(var entity:Entity in entities) {
380                         if(!(entity is Node || entity is Way))
381                                 return false;
382                 }
383                 return true;
384           }
385
386       private function limitType(entity:Entity):String {
387           if      (entity is Node    ) return "point";
388           else if (entity is Way     ) return Way(entity).isArea() ? "area" : "line";
389           else if (entity is Relation) return "relation";
390           return null;
391       }
392
393       private var tabComponents:Object = {};
394       private var subpanelComponents:Object = {};
395
396       private function initialiseEditors():void {
397                 editorStack.removeAllChildren();
398                 if ( selectedEntity == null || feature == null )
399                         return;
400
401                 var basicEditorBox:VBox = createEditorBox();
402                 basicEditorBox.label = "Basic";
403                 basicEditorBox.icon=tabIconBasic;
404                 editorStack.addChild(basicEditorBox);
405
406                 var tabs:Object = {};
407                 var tabList:Array = [];
408                 tabComponents = {};
409                 var subpanels:Object = {};
410                 subpanelComponents = {};
411
412                 // First create the tabs
413                 for each (var factory:EditorFactory in feature.editors) {
414                         var category:String = factory.category;
415                         if (category!='') {
416                                 var tab:VBox = tabs[category];
417                                 if ( tab == null) {
418                                         tab = createEditorBox();
419                                         tab.label = category;
420                                         if (tabIcons[category]) tab.icon=tabIcons[category];
421                                         tabs[category] = tab;
422                                         tabList.push(tab);      
423                                 }
424                         }
425                 }
426
427                 // Put the tabs on-screen in order
428                 tabList.sort(sortCategories,16);
429                 for each (tab in tabList) {
430                         editorStack.addChild(tab);
431                         tabComponents[tab] = [];
432                 }
433
434                 // Then add the individual editors to them
435                 for each (factory in feature.editors) {
436
437                         // Add to basic editor box first
438                         if ( factory.presence.isEditorPresent(factory, selectedEntity, null) ) {
439                                 var editor:DisplayObject = factory.createEditorInstance(selectedEntity);
440                                 if (editor) basicEditorBox.addChild(editor);
441                         }
442
443                         // Then prepare to add to category panel
444                         category=factory.category;
445                         if (factory.category=='') continue;
446                         var catEditor:DisplayObject = factory.createEditorInstance(selectedEntity);
447                         if (!catEditor) continue;
448                         tab=tabs[category];
449                         
450                         // Create subcategory panel if needed
451                         if (factory.subcategory) {
452                                 var subcategory:String = factory.subcategory;
453                                 if (!subpanels[category]) { subpanels[category]={}; }
454                                 var subpanel:CollapsiblePanel = subpanels[category][subcategory];
455                                 if (!subpanel) {
456                                         subpanel=new CollapsiblePanel(false);
457                                         subpanel.percentWidth=100;
458                                         subpanel.styleName="subcategoryPanel";
459                                         subpanel.title=subcategory;
460                                         subpanels[category][subcategory]=subpanel;
461                                         tabComponents[tab].push(subpanel);
462                                 }
463                                 subpanel.addChild(catEditor);
464                         } else {
465                                 tabComponents[tab].push(catEditor);
466                         }
467                 }
468       }
469
470         // ** FIXME: Order probably shouldn't be hard-coded, but configurable
471         private static var categoryOrder:Array=["Restrictions","Transport","Cycle","Walk","Address","Details"]; // reverse order
472         private function sortCategories(a:VBox,b:VBox):int {
473                 var a1:int=categoryOrder.indexOf(a.label);
474                 var a2:int=categoryOrder.indexOf(b.label);
475                 if (a1<a2) { return 1; }
476                 else if (a1>a2) { return -1; }
477                 return 0;
478         }
479         
480       private function createEditorBox():VBox {
481           var box:VBox = new VBox();
482           box.percentWidth = 100;
483           box.percentHeight = 100;
484           box.styleName = "dndEditorContainer";
485           return box;
486       }
487
488       private function ensureEditorsPopulated(tab:VBox):void {
489           var components:Array = tabComponents[tab];
490           if ( components == null || tab == null || tab.numChildren >= components.length )
491               return;
492           for each (var component:DisplayObject in components ) {
493               tab.addChild(component);
494           }
495       }
496
497         private function initEditorStackUIs():void {
498                 editorStackTabNavigator = new TabNavigator();
499 //              editorStackTabNavigator.allowTabSqueezing=false;
500 //              editorStackTabNavigator.minTabWidth=10;
501 //              editorStackTabNavigator.closePolicy="close_never";
502 //              editorStackTabNavigator.scrollSpeed=20;
503                 editorStackTabNavigator.creationPolicy="auto";
504                 editorStackTabNavigator.percentWidth=100;
505                 editorStackTabNavigator.percentHeight=100;
506                 editorStackTabNavigator.styleName="dndStackTab";
507 //              editorStackTabNavigator.popUpButtonPolicy="off"
508
509
510                 editorStackAccordion = new Accordion();
511                 editorStackAccordion.percentWidth=100;
512                 editorStackAccordion.percentHeight=100;
513                 editorStackAccordion.creationPolicy="auto";
514                 editorStackAccordion.styleName="dndStackAccordion";
515                 /* FIXME: the accordion icons should be right-aligned. See:
516                 http://www.kristoferjoseph.com/blog/2008/11/06/positioning-the-flex-accordion-header-icon
517                 http://blog.flexexamples.com/2007/09/13/changing-text-alignment-in-an-flex-accordion-header/
518                 */
519
520                 setEditorStackUI(true);
521         }
522
523         private function setEditorStackUI(isTabbed:Boolean):void {
524                 var children:Array=[]; var i:uint;
525
526                 if (editorStack) {
527                         // blank existing component
528                         editorStack.removeEventListener("change",editorStackUIChange);
529                         editorStack.removeEventListener("updateComplete",editorStackUIUpdate);
530                         editorStack.removeAllChildren();
531                         editorContainer.removeChildAt(1);
532                 }
533
534                 // replace with new component
535                 editorStack = (isTabbed ? editorStackTabNavigator : editorStackAccordion) as Container;
536                 editorContainer.addChild(editorStack);
537
538                 // re-add children and listeners
539                 initialiseEditors();
540                 editorStack.addEventListener("change",editorStackUIChange);
541                 editorStack.addEventListener("updateComplete",editorStackUIUpdate);
542         }
543
544         private function editorStackUIChange(event:Event):void {
545                 ensureEditorsPopulated(IndexChangedEvent(event).relatedObject as VBox);
546         }
547
548         private function editorStackUIUpdate(event:Event):void {
549                 if (editorStack is TabNavigator) {
550                         var e:TabNavigator = editorStack as TabNavigator;
551                         if (e.selectedIndex<0) { return; }
552                         for (var i:uint=0; i<e.numChildren; i++) {
553                                 e.getTabAt(i).selected=(i==e.selectedIndex);
554                         }
555                 }
556         }
557
558
559         public function togglePanel():void {
560                 if (stack.selectedChild==editorContainer && selectedEntity!=null) {
561                         stack.selectedChild=advancedContainer;
562                 } else if (stack.selectedChild!=editorContainer) {
563                         stack.selectedChild=editorContainer;
564                 }
565         }
566
567         public function selectAdvancedPanel():void {
568                 checkAdvanced();
569                 stack.selectedChild=advancedContainer;
570         }
571
572       private function checkAdvanced():void {
573           if ( selectedEntity != null )
574              setupAdvanced(selectedEntity);
575       }
576
577       private var listeningToRelations:Array = [];
578
579       private function setupAdvanced(entity:Entity):void {
580                 if (!advancedTagGrid) advancedContainer.createComponentsFromDescriptors();      // if Flex hasn't created it, force it
581                 advancedTagGrid.init(entity);
582
583                 if ( entity == null ) {
584                         advancedID.htmlText = "";
585                 } else {
586                         var entityText:String = "xx";
587                         if      ( entity is Node     ) entityText = "Node";
588                         else if ( entity is Way      ) entityText = "Way";
589                         else if ( entity is Relation ) entityText = "Relation";
590                         advancedID.htmlText = entityText+": <b>"+entity.id+"</b>";
591                 }
592
593                 removeRelationListeners();
594
595                 if ( entity == null ) {
596                         relationsGrid.dataProvider = null;
597                 } else {
598                         resetRelationsGrid(entity);
599                         entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation);
600                         entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation);
601                 }
602       }
603
604           private function setupMultiAdvanced(entity:Entity):void {
605                 multiAdvancedTagGrid.init(entity);
606                 resetRelationsGrid(entity);
607                 entity.addEventListener(Connection.ADDED_TO_RELATION, addedToRelation, false, 0, true);
608                 entity.addEventListener(Connection.REMOVED_FROM_RELATION, removedFromRelation, false, 0, true);
609       }
610
611           public function addNewTag():void {
612                 if (stack.selectedChild!=advancedContainer) { return; }
613                 advancedTagGrid.addNewTag();
614           }
615
616       private function addedToRelation(event:RelationMemberEvent):void {
617          resetRelationsGrid(selectedEntity);
618       }
619
620       private function removedFromRelation(event:RelationMemberEvent):void {
621          resetRelationsGrid(selectedEntity);
622       }
623
624       private function removeRelationListeners():void {
625           for each( var rel:Relation in listeningToRelations ) {
626               rel.removeEventListener(Connection.TAG_CHANGED, relationTagChanged);
627               rel.removeEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
628               rel.removeEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
629           }
630           listeningToRelations = [];
631           if (relationsGrid) relationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
632           if (multiRelationsGrid) multiRelationsGrid.removeEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged);
633       }
634
635       private function resetRelationsGrid(entity:Entity):void {
636           removeRelationListeners();
637
638           var instance:DataGrid=relationsGrid;
639           if (entity is EntityCollection) instance=multiRelationsGrid;
640           var memberships:Array = entity.getRelationMemberships();
641           for each (var m:Object in memberships) {
642               m.relation.addEventListener(Connection.TAG_CHANGED, relationTagChanged);
643               m.relation.addEventListener(Connection.RELATION_MEMBER_ADDED, entityRelationMemberChanged);
644               m.relation.addEventListener(Connection.RELATION_MEMBER_REMOVED, entityRelationMemberChanged);
645               listeningToRelations.push(m.relation);
646           }
647           instance.dataProvider = memberships;
648           instance.addEventListener(DataGridEvent.ITEM_EDIT_END, relationRoleChanged, false, -100);
649       }
650
651       private function relationRoleChanged(event:DataGridEvent):void {
652                 if (event.dataField != 'role') { return; }      // shouldn't really happen
653
654                 var relations:Array=event.currentTarget.dataProvider.toArray();
655                 var props:Object=relations[event.rowIndex];
656
657                 var relation:Relation=props['relation'];
658                 var newRole:String=event.itemRenderer.data['role'];
659
660                 if (selectedEntity is EntityCollection) {
661                         for each (var entity:Entity in EntityCollection(selectedEntity).entities) {
662                                 var indexes:Array=relation.findEntityMemberIndexes(entity);
663                                 for each (var index:int in indexes) {
664                                         relation.setMember(index, new RelationMember(entity,newRole), MainUndoStack.getGlobalStack().addAction);
665                                 }
666                         }
667                 } else {
668                         relation.setMember(props['index'], new RelationMember(selectedEntity,newRole), MainUndoStack.getGlobalStack().addAction);
669                 }
670       }
671
672       private function relationTagChanged(event:TagEvent):void {
673           resetRelationsGrid(selectedEntity);
674       }
675
676       private function entityRelationMemberChanged(event:RelationMemberEvent):void {
677           resetRelationsGrid(selectedEntity);
678       }
679
680       private function checkMembers():void {
681           if (selectedEntity is Relation) {
682             setupMembers(selectedEntity as Relation);
683           }
684       }
685
686       private function setupMembers(rel:Relation):void {
687           var members:Array = [];
688           for (var i:int=0 ; i<rel.length; i++) {
689             var props:Object = {};
690             var member:RelationMember = rel.getMember(i);
691             props["id"] = member.entity.id;
692             props["type"] = member.entity.getType();
693             props["role"] = member.role;
694
695             members.push(props);
696           }
697           membersGrid.dataProvider = members;
698           membersGrid.dataProvider.addEventListener('collectionChange', membersChange);
699       }
700
701       private function membersChange(event:Event):void {
702           // Dropping all the members and re-adding them isn't exactly optimal
703           // but is at least robust for any kind of change.
704           // Figuring out a better way is someone else's FIXME
705
706           var rel:Relation = selectedEntity as Relation;
707           var action:CompositeUndoableAction = new CompositeUndoableAction("Rearrange relation members for "+rel);
708
709           // drop members
710           for (var i:int=rel.length-1 ; i>=0; i--) {
711             rel.removeMemberByIndex(i, action.push);
712           }
713
714           // add members in new order
715           for each(var memberObject:Object in membersGrid.dataProvider) {
716             var e:Entity;
717             var id:Number = memberObject.id;
718                         switch (memberObject.type) {
719                                 case 'node':            e = connection.getNode(id); break;
720                 case 'way':                     e = connection.getWay(id); break;
721                                 case 'relation':        e = connection.getRelation(id); break;
722             }
723             rel.appendMember(new RelationMember(e, memberObject.role), action.push);
724           }
725           MainUndoStack.getGlobalStack().addAction(action);
726       }
727
728       private function editRelation(id:Number):void {
729           var panel:RelationEditorPanel = RelationEditorPanel(
730               PopUpManager.createPopUp(Application(FlexGlobals.topLevelApplication), RelationEditorPanel, true));
731           panel.setRelation(connection.getRelation(id));
732           PopUpManager.centerPopUp(panel);
733       }
734
735         /** Create relation actions menu */
736
737         public function createRelationMenu(button:PopUpButton):void {
738                 var menu:Menu = new Menu(); 
739                 var dp:Object = [ {label: "Select all members"}, 
740                                                   {label: "Deselect all members"}, 
741                                                   {label: "Add selection to this relation", enabled: false},
742                                                   {label: "Delete relation"} ]; 
743                 menu.dataProvider = dp; 
744                 menu.addEventListener("itemClick", selectRelationMenu); 
745                 button.popUp = menu;
746         }
747
748         /** Enable 'add selection to...' entry only if some of the selection isn't in the relation.
749             Called each time the menu is clicked. */
750         
751         public function updateRelationMenu(event:Event):void {
752                 rowData=event.target.parent.data;       // this makes it accessible from selectRelationMenu
753                 var menu:Menu = Menu(event.target.popUp);
754                 var enable:Boolean = false;
755                 if (selectedEntity != null && selectedEntity is EntityCollection) {
756                         // Enable only if some entities aren't a member of the relation
757                         enable=!rowData.universal;
758                 }
759                 if (enable==menu.dataProvider[2].enabled) return;
760                 menu.dataProvider[2].enabled=enable;
761                 menu.invalidateList();
762         }
763
764         /** Do the action selected in the relation actions menu */
765
766         public function selectRelationMenu(event:MenuEvent):void {
767                 var rel:Relation=rowData.relation;
768                 var entities:Array;
769                 var controller:EditController=FlexGlobals.topLevelApplication.theController;
770                 switch (event.index) {
771                         case 0: // Select all members
772                                 entities=selectedEntity.entities.concat(rel.memberEntities);
773                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return arr.indexOf(e) == i } );      // remove duplicates
774                                 // ** FIXME: This is a really horrible way of changing the controller state
775                                 controller.setState(controller.findStateForSelection(entities));
776                                 break;
777
778                         case 1: // Deselect all members
779                                 entities=selectedEntity.entities;
780                                 entities=entities.filter(function(e:*, i:int, arr:Array):Boolean { return !e.hasParent(rel) } );
781                                 controller.setState(controller.findStateForSelection(entities));
782                                 break;
783
784                         case 2: // Add selection to this relation
785                                 var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
786                                 for each (var entity:Entity in selectedEntity.entities) {
787                                         if (!entity.hasParent(rel)) {
788                                                 rel.appendMember(new RelationMember(entity,''), undo.push);
789                                         }
790                                 }
791                                 MainUndoStack.getGlobalStack().addAction(undo);
792                                 break;
793                         
794                         case 3: // Delete relation
795                                 Alert.show("Do you really want to delete the relation?","Are you sure?",Alert.YES | Alert.CANCEL,null,
796                                         function(event:CloseEvent):void { 
797                                                 if (event.detail==Alert.CANCEL) return;
798                                                 rel.remove(MainUndoStack.getGlobalStack().addAction);
799                                         } );
800                                 break;
801                 }
802         }
803
804       private function tagChanged(event:TagEvent):void {
805           refreshFeatureIcon();
806       }
807
808       public function loadFeatures():void {
809           mapFeatures = MapFeatures.getInstance();
810           stack.removeChild(membersVBox); // remove by default, will be added if relation
811       }
812
813       /** Open up a new browser page, showing the help page as defined in Map Features XML file .*/
814       public function openDescription():void {
815           if ( feature != null && feature.hasHelpURL() )
816               navigateToURL(new URLRequest(feature.helpURL), "potlatch_help");
817       }
818
819       public function addToRelation():void {
820           new RelationSelectPanel().init(selectedEntity,new Object());
821       }
822
823       private function removeFromRelation(id:Number, index:int=-1):void {
824                 var rel:Relation=connection.getRelation(id);
825                 if (index>-1) {
826                         rel.removeMemberByIndex(index, MainUndoStack.getGlobalStack().addAction);
827                 } else if (selectedEntity is EntityCollection) {
828                         var undo:CompositeUndoableAction=new CompositeUndoableAction("Remove selection from relations");
829                         for each (var e:Entity in EntityCollection(selectedEntity).entities) rel.removeMember(e,undo.push);
830                         MainUndoStack.getGlobalStack().addAction(undo);
831                 }
832       }
833
834       public function changeFeatureType(event:Event):void {
835           if ( selectedEntity == null )
836               return;
837
838           UIComponent.suspendBackgroundProcessing();
839           var newFeature:Feature = currentCategorySelector.selectedType;
840           var undoStack:Function = MainUndoStack.getGlobalStack().addAction;
841           var action:CompositeUndoableAction = new CompositeUndoableAction(
842                   "Set "+selectedEntity.getType()+" "+selectedEntity.id+" to "+newFeature.name);
843                   selectedEntity.suspend();
844
845           // remove tags from the current feature
846           if ( feature != null ) {
847               for each( var oldtag:Object in feature.tags ) {
848                   selectedEntity.setTag(oldtag["k"], null, action.push);
849               }
850           }
851
852           // set tags for new feature
853           if ( newFeature != null ) {
854               for each( var newtag:Object in newFeature.tags ) {
855                   selectedEntity.setTag(newtag["k"], newtag["v"], action.push);
856               }
857           }
858
859                   selectedEntity.resume();
860           undoStack(action);
861           popupChange.close();
862           initialiseEditors();
863           UIComponent.resumeBackgroundProcessing();
864       }
865
866         private function resizePOIGrid(event:Event):void {
867                 var rows:Number=event.target.dataProvider.length/event.target.columnCount;
868                 if (rows!=Math.floor(rows)) { rows=Math.floor(rows+1); }
869                 event.target.height=rows*(event.target.rowHeight+1);
870         }
871   ]]></fx:Script>
872 </mx:VBox>
873