Lechapt-Calmon : amélioration du sélecteur de matériau

src/app/calculators/lechapt-calmon/lechapt-calmon.config.json

@@ -8,6 +8,9 @@
                 "id": "select_material",
                 "type": "select",
                 "select": [
+                    {
+                        "id": "select_material_0"
+                    },
                     {
                         "id": "select_material_1"
                     },

src/app/calculators/lechapt-calmon/lechapt-calmon.en.json

 {
     "fs_materiau": "Type of material",
     "select_material": "Choice of material",
+    "select_material_0": "",
     "select_material_1": "Unlined cast iron - Coarse concrete (corrosive water)",
     "select_material_2": "Cast steel or uncoated - Coarse concrete (somewhat corrosive water)",
     "select_material_3": "Cast steel or cement coating",

src/app/calculators/lechapt-calmon/lechapt-calmon.fr.json

 {
     "fs_materiau": "Type du matériau",
     "select_material": "Choix du matériau",
+    "select_material_0": "",
     "select_material_1": "Fonte ou acier non revêtus - Béton grossier (eau corrosive)",
     "select_material_2": "Fonte ou acier non revêtus - Béton grossier (eau peu corrosive)",
     "select_material_3": "Fonte ou acier revêtement ciment",

src/app/formulaire/definition/concrete/form-lechapt-calmon.ts

 import { Observer } from "jalhyd";
 import { SelectField } from "../../select-field";
 import { FormulaireBase } from "./form-base";
+import { NgParamInputComponent } from "../../../components/ngparam-input/ngparam-input.component";
 
 export class FormulaireLechaptCalmon extends FormulaireBase implements Observer {
 
@@ -8,6 +9,10 @@ export class FormulaireLechaptCalmon extends FormulaireBase implements Observer
         super.completeParse(json);
         // abonnement au changement de valeur du select de matériau
         this.getFormulaireNodeById("select_material").addObserver(this);
+        // abonnement au changement de valeur de l'un dex trois champs affectés par le changement de matériau
+        this.getParamFromSymbol("L").addObserver(this);
+        this.getParamFromSymbol("M").addObserver(this);
+        this.getParamFromSymbol("N").addObserver(this);
     }
 
     // interface Observer
@@ -19,5 +24,13 @@ export class FormulaireLechaptCalmon extends FormulaireBase implements Observer
                 this.reset();
             }
         }
+        if (sender instanceof NgParamInputComponent) {
+            if (data.action === "ngparamAfterValue") {
+                // value of L, M or N changed
+                const materialSelect = this.getFormulaireNodeById("select_material") as SelectField;
+                // reset material select field to "" (empty)
+                materialSelect.setValue(materialSelect.entries[0]);
+            }
+        }
     }
 }