Some refactoring

projects/common-map/src/fm-map/components/map/map.component.ts

@@ -1,8 +1,8 @@
-import { Component, OnInit, OnDestroy, HostListener, Inject, ViewChild, AfterViewInit,ChangeDetectorRef,NgZone } from '@angular/core';
+import { Component, OnInit, OnDestroy, HostListener, ViewChild, AfterViewInit,NgZone } from '@angular/core';
 import { Location } from '@angular/common';
-import { Observable, Subject, Subscription,combineLatest, from,interval  } from 'rxjs';
+import { Observable, Subject, Subscription, from,of  } from 'rxjs';
-import { debounce, withLatestFrom, first, combineAll,throttle  } from 'rxjs/operators';
+import { withLatestFrom, switchMap  } from 'rxjs/operators';
-import { Router, ActivatedRoute, ParamMap, Event } from '@angular/router';
+import { Router, ActivatedRoute, ParamMap } from '@angular/router';
 import { Store } from '@ngrx/store';
 //import { proj,Map } from 'openlayers';
 
@@ -16,7 +16,6 @@ import { IQueryState } from '@farmmaps/common';
 import { IPeriodState } from '../../models/period.state';
 import {IStyles} from '../../models/style.cache';
 import { IDroppedFile } from '../aol/file-drop-target/file-drop-target.component';
-import { IMetaData } from '../meta-data-modal/meta-data-modal.component';
 import { StateSerializerService } from '@farmmaps/common';
 import { GeolocationService} from '../../services/geolocation.service';
 import {DeviceOrientationService} from '../../services/device-orientation.service';
@@ -30,7 +29,6 @@ import {commonActions} from '@farmmaps/common';
 import {Feature} from 'ol';
 import {Extent,createEmpty,extend } from 'ol/extent';
 import {transform} from 'ol/proj';
-import { query } from '@angular/animations';
 import { tassign } from 'tassign';
 import * as style from 'ol/style';
 
@@ -57,7 +55,7 @@ export class MapComponent implements OnInit, OnDestroy,AfterViewInit {
   public droppedFile$: Subject<IDroppedFile>  = new Subject<IDroppedFile>();
   private paramSub: Subscription;
   private itemTypeSub: Subscription;
-  private mapStateSub: Subscription;
+  private stateSub: Subscription;
   private queryStateSub: Subscription;
   private querySub: Subscription;
   public parentCode$: Observable<string> =this.store.select(mapReducers.selectGetParentCode);
@@ -67,6 +65,7 @@ export class MapComponent implements OnInit, OnDestroy,AfterViewInit {
   public clickedFeature: Subject<Feature> = new Subject<Feature>();
   public selectedItem$: Observable<IItem> = this.store.select(mapReducers.selectGetSelectedItem);
   public queryState$: Observable<IQueryState> = this.store.select(mapReducers.selectGetQueryState);
+  public state$:Observable<{mapState:IMapState,queryState:IQueryState,setStateCount:number}> = this.store.select(mapReducers.selectGetState);
   public period$: Observable<IPeriodState> = this.store.select(mapReducers.selectGetPeriod);
   public clearEnabled$: Observable<boolean> = this.store.select(mapReducers.selectGetClearEnabled);
   public searchCollapsed$: Observable<boolean> = this.store.select(mapReducers.selectGetSearchCollapsed);
@@ -80,6 +79,7 @@ export class MapComponent implements OnInit, OnDestroy,AfterViewInit {
   public extent$: Observable<Extent> = this.store.select(mapReducers.selectGetExtent);
   public styles$:Observable<IStyles> = this.store.select(mapReducers.selectGetStyles);
   private setStateCount$:Observable<number> =  this.store.select(mapReducers.selectgetSetStateCount);
+  private lastUrl = "";
 
   @ViewChild('map') map;
   
@@ -122,18 +122,6 @@ export class MapComponent implements OnInit, OnDestroy,AfterViewInit {
           }
         }
       });        
-      this.mapStateSub = this.mapState$.pipe(withLatestFrom(this.queryState$),withLatestFrom(this.setStateCount$)).subscribe(([[mapState,queryState],setStateCount]) =>{
-        if(setStateCount>0) {
-          console.debug(`Mapstate ${setStateCount}`);
-          this.replaceUrl(mapState,queryState,true);
-        }
-      });    
-      this.queryStateSub = this.queryState$.pipe(withLatestFrom(this.mapState$),withLatestFrom(this.setStateCount$)).subscribe(([[queryState,mapState],setStateCount]) =>{
-        if(setStateCount>0) {
-          console.debug(`Querystate ${setStateCount}`);
-          this.replaceUrl(mapState,queryState,true);
-        }
-      })      
   }
 
   @HostListener('document:keyup', ['$event'])
@@ -173,7 +161,6 @@ export class MapComponent implements OnInit, OnDestroy,AfterViewInit {
     this.store.dispatch(new mapActions.Clear());
     this.selectedFeatures$.next({x:0,y:0,features:[]});
     this.selectedFeatures$.next(null);      
-    
   }
 
   initCustomStyles() {
@@ -195,47 +182,107 @@ export class MapComponent implements OnInit, OnDestroy,AfterViewInit {
     })));
   }
 
+  round(value:number,decimals:number):number {
+    let d = Math.pow(10, decimals);
+    return Math.round((value + Number.EPSILON)*d)/d;
+  }
+
+  getMapStateFromUrl(params:ParamMap):IMapState {
+    var hasUrlmapState = params.has("xCenter") && params.has("yCenter");
+    if (hasUrlmapState) {
+      let xCenter = parseFloat(params.get("xCenter"));
+      let yCenter = parseFloat(params.get("yCenter"));
+      let zoom = parseFloat(params.get("zoom"));
+      let rotation = parseFloat(params.get("rotation"));
+      let baseLayer = params.get("baseLayer")?params.get("baseLayer"):"";
+      var newMapState = {zoom: zoom, rotation: rotation, xCenter: xCenter, yCenter: yCenter, baseLayerCode: baseLayer };
+      return newMapState;
+    } else {
+      return null;
+    }
+  }
+
+  normalizeMapState(mapState:IMapState):IMapState {
+    if(!mapState) return null;
+    return {zoom: this.round(mapState.zoom,0), 
+      rotation: this.round(mapState.rotation,2), 
+      xCenter: this.round(mapState.xCenter,5),
+      yCenter: this.round(mapState.yCenter,5),
+      baseLayerCode: mapState.baseLayerCode };
+  }
+
+  serializeMapState(mapState:IMapState):string {
+    return JSON.stringify(this.normalizeMapState(mapState));
+  }
+
+  getQueryStateFromUrl(params:ParamMap):IQueryState {
+    if (params.has("queryState")) {
+      let queryState = params.get("queryState");
+      var newQueryState = tassign(mapReducers.initialQueryState);
+      if (queryState != "") {
+        newQueryState = this.serializeService.deserialize(queryState);          
+      }
+      return newQueryState;
+    } else {
+      return null;
+    }
+  }
+
   ngAfterViewInit() {    
     console.debug("View init");
     this.initCustomStyles();   
-    this.paramSub = this.route.paramMap.pipe(withLatestFrom(this.setStateCount$),withLatestFrom(this.queryState$),withLatestFrom(this.mapState$)).subscribe( ([[[params,setStateCount],lastQueryState],lastMapState]) => {
+
-      console.debug(`Url change ${setStateCount}`);
+    // url to state
-      var newMapState: IMapState = lastMapState;
+
-      var newQueryState: IQueryState = lastQueryState;
+    this.paramSub = this.route.paramMap.pipe(withLatestFrom(this.state$),switchMap(([params,state]) => {
-      var hasUrlmapState = params.has("xCenter") && params.has("yCenter");
+      var newMapState: IMapState = state.mapState;
+      var newQueryState: IQueryState = state.queryState;
+     
       var queryStateChanged = false;
-      if (hasUrlmapState) {
+      var mapStateChanged = false;
-        let xCenter = parseFloat(params.get("xCenter"));
+      let urlMapState = this.getMapStateFromUrl(params);
-        let yCenter = parseFloat(params.get("yCenter"));
+      if(urlMapState) {
-        let zoom = parseFloat(params.get("zoom"));
+        newMapState = urlMapState;
-        let rotation = parseFloat(params.get("rotation"));
+        mapStateChanged = this.serializeMapState(state.mapState) != this.serializeMapState(newMapState);
-        let baseLayer = params.get("baseLayer")?params.get("baseLayer"):"";
-        newMapState = { xCenter: xCenter, yCenter: yCenter, zoom: zoom, rotation: rotation, baseLayerCode: baseLayer }
-        window.localStorage.setItem("FarmMapsCommonMap_mapState",JSON.stringify(newMapState));
       }
-      if (params.has("queryState")) {
+
-        let queryState = params.get("queryState");
+      let urlQueryState = this.getQueryStateFromUrl(params);
-        newQueryState = tassign(mapReducers.initialQueryState);
+      if(urlQueryState) {
-        if (queryState != "") {
+        newQueryState = urlQueryState;
-          newQueryState = this.serializeService.deserialize(queryState);          
+        queryStateChanged = this.serializeService.serialize(state.queryState) !=  this.serializeService.serialize(urlQueryState);
-          queryState = this.serializeService.serialize(newQueryState);
-        }
-        queryStateChanged = this.serializeService.serialize(lastQueryState) !=  queryState;
       }
-      console.debug(newQueryState);
+  
-      console.debug(queryStateChanged?"Changed":"");
+      if(queryStateChanged || mapStateChanged) {
-      let t =0;
+        return of(new mapActions.SetState(newMapState,newQueryState));
-      if(setStateCount==0) t=600;
+      } else {
-      setTimeout(() => {
+        return of(null);
-        this.zone.run(()=> {
+      }
-          if (setStateCount ==0) {
+    })).subscribe((action) => {
-            this.store.dispatch(new mapActions.SetState(newMapState,newQueryState));
+       if(action) {
-          } else if(queryStateChanged) {
+         window.localStorage.setItem("FarmMapsCommonMap_mapState",this.serializeMapState(action.mapState));
-            this.store.dispatch(new mapActions.SetQueryState(newQueryState));
+         console.debug("Url to state");
-          } 
+         this.store.dispatch(action);
-        })
+       }
-      },t);                
     });
+
+    // state to url
+    
+    this.stateSub = this.state$.pipe(withLatestFrom(this.route.paramMap),switchMap(([state,params]) => {
+      let newUrl = this.serializeMapState(state.mapState) + "_" + this.serializeService.serialize(state.queryState);
+      if(this.lastUrl!=newUrl && state.setStateCount>0) {
+        this.lastUrl=newUrl;
+        return of(state);
+      }
+      else {
+        return of(null);
+      }          
+      })).subscribe((newUrlState) =>{
+        if(newUrlState) {
+          console.debug(`State to url ${newUrlState.setStateCount}`);
+          this.replaceUrl(newUrlState.mapState,newUrlState.queryState,true);
+        }
+      });  
+
     setTimeout(() => {
       this.map.instance.updateSize();
     }, 500);
@@ -278,7 +325,7 @@ export class MapComponent implements OnInit, OnDestroy,AfterViewInit {
       if(mapState.baseLayerCode!="") {
         parts.push(mapState.baseLayerCode);
         parts.push( this.serializeService.serialize(queryState));
-        console.debug("Replace url",mapState,queryState,replace);
+        console.debug("Replace url",parts);
         this.router.navigate(parts, { replaceUrl: replace,relativeTo:this.route.parent });
       }      
   }
@@ -296,7 +343,7 @@ export class MapComponent implements OnInit, OnDestroy,AfterViewInit {
       let state = { mapState: mapState, extent: extent };
       let source = from([state]);
       source.pipe(withLatestFrom(this.selectedBaseLayer$),withLatestFrom(this.setStateCount$)).subscribe(([[state, baselayer],setStateCount]) => {
-        if (mapState && baselayer && setStateCount > 0) { // do not react on first move
+        if (mapState && baselayer) { // do not react on first move
           let newMapState = tassign(state.mapState, { baseLayerCode: baselayer.item.code });
           this.store.dispatch(new mapActions.SetMapState(newMapState));
           this.store.dispatch(new mapActions.SetViewExtent(state.extent));
@@ -350,7 +397,7 @@ export class MapComponent implements OnInit, OnDestroy,AfterViewInit {
   ngOnDestroy() {
     if (this.paramSub) this.paramSub.unsubscribe();
     if (this.itemTypeSub) this.itemTypeSub.unsubscribe();
-    if (this.mapStateSub) this.mapStateSub.unsubscribe();
+    if (this.stateSub) this.stateSub.unsubscribe();
     if (this.queryStateSub) this.queryStateSub.unsubscribe();  
     if (this.querySub) this.querySub.unsubscribe();
   }

projects/common-map/src/fm-map/effects/map.effects.ts

@@ -27,6 +27,7 @@ import {FeatureIconService} from '../services/feature-icon.service';
 import * as style from 'ol/style';
 
 import { ItemTypeService } from '@farmmaps/common';
+import { IQueryState } from 'dist/common/public-api';
 
 
 @Injectable()
@@ -248,23 +249,27 @@ export class MapEffects {
       }
     }));
 
+  getActionFromQueryState(queryState:IQueryState, inSearch:boolean):Observable<Action>|[] {
+    if(!inSearch && (queryState.itemType || queryState.parentCode || queryState.itemType)) {
+      var newAction:Action;     
+      if (queryState.itemCode && queryState.itemCode != "") {         
+        newAction= new mapActions.SelectItem(queryState.itemCode);          
+      } else {
+        newAction= new mapActions.StartSearch(queryState);
+      }
+      return of(newAction);  
+    } else {
+      return [];
+    }
+  } 
+
   @Effect()
   setQueryState$: Observable<Action> = this.actions$.pipe(
     ofType(mapActions.SETQUERYSTATE),
     withLatestFrom(this.store$.select(mapReducers.selectGetInSearch)),
     switchMap(([action,inSearch]) => {
-        if(!inSearch) {
+      let a = action as mapActions.SetQueryState;
-          let a = action as mapActions.SetQueryState;
+       return this.getActionFromQueryState(a.queryState,inSearch);
-          var newAction:Action;
-          if (a.queryState.itemCode && a.queryState.itemCode != "") {         
-            newAction= new mapActions.SelectItem(a.queryState.itemCode);          
-          } else {
-            newAction= new mapActions.StartSearch(a.queryState);
-          }
-          return of(newAction);  
-        } else {
-          return [];
-        }
       }));
 
   @Effect()
@@ -272,18 +277,8 @@ export class MapEffects {
     ofType(mapActions.SETSTATE),
     withLatestFrom(this.store$.select(mapReducers.selectGetInSearch)),
     switchMap(([action,inSearch]) => {
-      if(!inSearch) {
+      let a = action as mapActions.SetState;
-        let a = action as mapActions.SetQueryState;
+      return this.getActionFromQueryState(a.queryState,inSearch);
-        var newAction:Action;
-        if (a.queryState.itemCode && a.queryState.itemCode != "") {         
-          newAction= new mapActions.SelectItem(a.queryState.itemCode);          
-        } else {
-          newAction= new mapActions.StartSearch(a.queryState);
-        }
-        return of(newAction);  
-      } else {
-        return [];
-      }
     }));
 
     constructor(private actions$: Actions, private store$: Store<mapReducers.State>, private folderService$: FolderService, private itemService$: ItemService,private featureIconService$:FeatureIconService,private itemTypeService$:ItemTypeService) {

projects/common-map/src/fm-map/reducers/map.reducer.ts

@@ -467,10 +467,6 @@ export function reducer(state = initialState, action: mapActions.Actions | commo
       let a = action as mapActions.ShowLayerSwitcher;
       return tassign(state,{showLayerSwitcher:a.show});
     }  
-   
-    case commonActions.INITUSER: {
-      return tassign(state,{setStateCount:0,features:[],selectedFeature:null,selectedItem:null});
-    }
     default: {
       return state;
     }
@@ -501,6 +497,7 @@ export const getStyles = (state:State) => state.styles;
 export const getShowLayerSwitcher = (state:State) => state.showLayerSwitcher;
 export const getSetStateCount = (state:State) => state.setStateCount;
 export const getInSearch = (state:State) => state.inSearch;
+export const getState = (state:State) => {return {mapState:state.mapState,queryState:state.queryState,setStateCount:state.setStateCount};}
 
 export const selectMapState = createFeatureSelector<State>(MODULE_NAME);
 export const selectGetMapState= createSelector(selectMapState, getMapState);
@@ -527,5 +524,6 @@ export const selectGetStyles = createSelector(selectMapState, getStyles);
 export const selectGetShowLayerSwitcher = createSelector(selectMapState,getShowLayerSwitcher);
 export const selectgetSetStateCount = createSelector(selectMapState,getSetStateCount);
 export const selectGetInSearch = createSelector(selectMapState,getInSearch);
+export const selectGetState = createSelector(selectMapState,getState);