#48 ParamLinkComponent : MAJ de la liste des paramètres liables après création d'une calculette

src/app/components/param-link/param-link.component.ts

@@ -2,13 +2,14 @@ import { Component, Input, Output, EventEmitter, OnChanges } from "@angular/core
 
 import { NgParameter } from "../../formulaire/ngparam";
 import { ServiceFactory } from "../../services/service-factory";
-import { ParamValueMode } from "jalhyd";
+import { ParamValueMode, Observer } from "jalhyd";
+import { FormulaireService } from "../../services/formulaire/formulaire.service";
 
 @Component({
     selector: "param-link",
     templateUrl: "./param-link.component.html"
 })
-export class ParamLinkComponent implements OnChanges {
+export class ParamLinkComponent implements OnChanges, Observer {
     @Input("param")
     private _param: NgParameter;
 
@@ -31,8 +32,12 @@ export class ParamLinkComponent implements OnChanges {
      */
     private _linkableParams: any[];
 
+    private _formService: FormulaireService;
+
     constructor() {
         this.onValid = new EventEmitter();
+        this._formService = ServiceFactory.instance.formulaireService;
+        this._formService.addObserver(this);
     }
 
     /**
@@ -94,13 +99,35 @@ export class ParamLinkComponent implements OnChanges {
         }
     }
 
-    public ngOnChanges() {
-        this._linkableParams = ServiceFactory.instance.formulaireService.getLinkableParameters(this._param);
+    private updateParamList() {
+        // liste des paramètres liables
+        this._linkableParams = this._formService.getLinkableParameters(this._param);
+
+        // initialisation de l'indice courant
         if (this._linkableParams.length > 0) {
-            this.linkTo(0);
+            if (this._currentIndex === -1)
+                this.linkTo(0);
             this._message = undefined;
         }
-        else
+        else {
+            this._currentIndex = -1;
             this._message = "Aucun paramètre compatible trouvé";
+        }
+    }
+
+    public ngOnChanges() {
+        this.updateParamList();
+    }
+
+    // interface Observer 
+
+    public update(sender: any, data: any) {
+        if (sender instanceof FormulaireService) {
+            switch (data["action"]) {
+                case "createForm":
+                    this.updateParamList();
+                    break;
+            }
+        }
     }
 }