add clearlayers action

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

@@ -33,6 +33,7 @@ export const SETVISIBILITY = '[Map] SetVisibility';
 export const SETOPACITY = '[Map] SetOpacity';
 export const SETLAYERINDEX = '[Map] SetLayerIndex';
 export const REMOVELAYER = '[Map] RemoveLayer';
+export const CLEARLAYERS = '[Map] ClearLayers';
 export const LOADBASELAYERS = '[Map] LoadLayers';
 export const LOADBASELAYERSSUCCESS = '[Map] LoadLayersSuccess';
 export const SELECTBASELAYER = '[Map] SelectBaseLayers';
@@ -212,6 +213,12 @@ export class RemoveLayer implements Action {
   constructor(public itemLayer: IItemLayer) { }
 }
 
+export class ClearLayers implements Action {
+  readonly type = CLEARLAYERS;
+
+  constructor() { }
+}
+
 export class LoadBaseLayers implements Action {
   readonly type = LOADBASELAYERS;
 
@@ -292,6 +299,7 @@ export type Actions = SetMapState
   | SetTimeSpan
   | AddLayer
   | RemoveLayer
+  | ClearLayers
   | SetVisibility
   | SetOpacity
   | SetLayerIndex

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

@@ -328,7 +328,7 @@ export function reducer(state = initialState, action: mapActions.Actions | commo
     case mapActions.SETEXTENT: {
       let a = action as mapActions.SetExtent;
       return tassign(state, { extent: a.extent });
-    }   
+    }
     case mapActions.ADDLAYER: {
       let a = action as mapActions.AddLayer;
       let itemLayers = state.overlayLayers.slice(0);
@@ -355,6 +355,9 @@ export function reducer(state = initialState, action: mapActions.Actions | commo
       newLayers.splice(i, 1);
       return tassign(state, { overlayLayers: newLayers, selectedOverlayLayer: selectedOverlayLayer });
     }
+    case mapActions.CLEARLAYERS: {
+      return tassign(state, {overlayLayers: [], selectedOverlayLayer: null});
+    }
     case mapActions.SETVISIBILITY: {
       let a = action as mapActions.SetVisibility;
       let newLayers = state.overlayLayers.slice(0);
@@ -448,7 +451,7 @@ export function reducer(state = initialState, action: mapActions.Actions | commo
       let a = action as mapActions.SelectOverlayLayer;
       return tassign(state, { selectedOverlayLayer: a.itemLayer });
     }
-  
+
     case mapActions.CLEAR: {
       let newQueryState = tassign(state.queryState, { query: null, tags: null, itemCode: null, parentCode: null, itemType: null });
       return tassign(state, {
@@ -480,7 +483,7 @@ export function reducer(state = initialState, action: mapActions.Actions | commo
     case mapActions.SETREPLACEURL: {
       let a= action as mapActions.SetReplaceUrl;
       return tassign(state,{replaceUrl:a.replaceUrl});
-    }   
+    }
     default: {
       return state;
     }