feat(context): choose to remove or not all layers on context change (#…

…406) * feat(context): choose to remove or not all layers on context change * Update layer-context.directive.ts * package
infra-geo-ouverte · Sep 11, 2019 · 8b2929e · 8b2929e
1 parent 2a8ca55
commit 8b2929e
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Showing 2 changed files with 9 additions and 3 deletions.
diff --git a/packages/context/src/lib/context-manager/shared/context.interface.ts b/packages/context/src/lib/context-manager/shared/context.interface.ts
@@ -26,6 +26,7 @@ export interface DetailedContext extends Context {
   layers?: LayerOptions[];
   tools?: Tool[];
   toolbar?: string[];
+  removeLayersOnContextChange?: boolean;
 }
 
 export interface ContextMapView extends MapViewOptions {

diff --git a/packages/context/src/lib/context-manager/shared/layer-context.directive.ts b/packages/context/src/lib/context-manager/shared/layer-context.directive.ts
@@ -1,4 +1,4 @@
-import { Directive, OnInit, OnDestroy, Optional } from '@angular/core';
+import { Directive, OnInit, OnDestroy, Optional, Input } from '@angular/core';
 
 import { Subscription, of, zip } from 'rxjs';
 import { withLatestFrom, skip, filter } from 'rxjs/operators';
@@ -25,6 +25,8 @@ export class LayerContextDirective implements OnInit, OnDestroy {
 
   private contextLayers: Layer[] = [];
 
+  @Input() removeLayersOnContextChange: boolean = true;
+
   get map(): IgoMap {
     return this.component.map;
   }
@@ -62,8 +64,11 @@ export class LayerContextDirective implements OnInit, OnDestroy {
 
   private handleContextChange(context: DetailedContext) {
     if (context.layers === undefined) { return; }
-
-    this.map.removeLayers(this.contextLayers);
+    if (this.removeLayersOnContextChange === true) {
+      this.map.removeAllLayers();
+    } else {
+      this.map.removeLayers(this.contextLayers);
+    }
     this.contextLayers = [];
 
     const layersAndIndex$ = zip(...context.layers.map((layerOptions: LayerOptions, index: number) => {