base-param-input.component.ts 3.72 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 } from "jalhyd";
import { I18nService } from "../../services/internationalisation/internationalisation.service";
import { GenericInputComponent } from "../generic-input/generic-input.component";
import { ServiceFactory } from "../../services/service-factory";
import { NgParameter } from "../../formulaire/ngparam";
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 param() {
        return this._param;
    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 checkMin(min: number): boolean {
        return this._param.checkMin(min);
    public checkMax(max: number): boolean {
        return this._param.checkMax(max);
    public checkStep(step: number): boolean {
        return this._param.checkStep(step);
    public setValue(val: number) {
        this._param.setValue(val);
        this.notifyObservers(val);
    public get value() {
        return this.getValue();
    public set value(val: number) {
        this.setValue(val);
    public validateModelValue(v: any): { isValid: boolean, message: string } {
        let msg: string;
        let valid = false;
        if (v === null || v === "") {
            // NULL values are always invalid
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msg = ServiceFactory.instance.i18nService.localizeText("ERROR_PARAM_NULL"); } else { try { this._param.checkValue(v); valid = true; } catch (e) { if (e instanceof Message) { // ici au début le service de localisation n'a pas encore chargé ses messages… msg = ServiceFactory.instance.i18nService.localizeMessage(e); } else { msg = "invalid value"; } } } return { isValid: valid, message: msg }; } } @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(): NgParameter { return this._model as NgParameter; } /** * 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) { this._tmp = v; try { this._paramDef.setValue(null, v); } catch (e) { // géré par validateModelValue() } } protected validateModelValue(v: any): { isValid: boolean, message: string } { if (this._model instanceof NgBaseParam) { return this._model.validateModelValue(v); } } }