base-param-input.component.ts 3.04 KiB
// cf. https://blog.thoughtram.io/angular/2016/07/27/custom-form-controls-in-angular-2.html
import { Component, ChangeDetectorRef } from "@angular/core";
import { Message, ParamDefinition, ParamDomain, ParamDomainValue, Observable, isNumeric } from "jalhyd";
import { I18nService } from "../../services/internationalisation/internationalisation.service";
import { GenericInputComponent } from "../generic-input/generic-input.component";
export class NgBaseParam extends Observable {
    private _param: ParamDefinition;
    constructor(symb: string, d: ParamDomain | ParamDomainValue, val: number) {
        super();
        this._param = new ParamDefinition(null, symb, d, val);
    public get symbol() {
        return this._param.symbol;
    public get isDefined() {
        return this._param.isDefined;
    public getValue() {
        return this._param.getValue();
    public checkValue(val: number) {
        return this._param.checkValue(val);
    public setValue(val: number) {
        this._param.setValue(val);
        this.notifyObservers(val);
@Component({
    selector: "base-param-input",
    templateUrl: "../generic-input/generic-input.component.html",
export class BaseParamInputComponent extends GenericInputComponent {
    constructor(private intlService: I18nService, cdRef: ChangeDetectorRef) {
        super(cdRef);
    /**
     * paramètre géré
    private get _paramDef(): NgBaseParam {
        return this._model;
    /**
     * valeur intermédiaire nécessitée par le fait que toutes les valeurs numériques ne sont pas légales
     * pour NgParameter (l'affecter peut provoquer une exception) et qui permet de faire fonctionner la validation du modèle
    private _tmp: number;
    protected afterSetModel() {
        this._tmp = this._paramDef.getValue();
    protected getModelValue(): any {
        return this._tmp;
    protected setModelValue(sender: any, v: any) {
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this._tmp = v; try { this._paramDef.setValue(v); } catch (e) { // géré par validateModelValue() } } protected validateModelValue(v: any): { isValid: boolean, message: string } { let msg; let valid = false; try { this._paramDef.checkValue(v); valid = true; } catch (e) { if (e instanceof Message) { msg = this.intlService.localizeMessage(e); } else { msg = "invalid value"; } } return { isValid: valid, message: msg }; } protected modelToUI(v: any): string { return String(v); } protected validateUIValue(ui: string): { isValid: boolean, message: string } { let valid = false; let msg: string; if (! isNumeric(ui)) { msg = "Veuillez entrer une valeur numérique"; } else { valid = true; } return { isValid: valid, message: msg }; } protected uiToModel(ui: string) { return +ui; } }