ferngully-aurelia-tools/dist/es2017/services/validation/validation-event-aggregator.js

Ferngully Tools for Aurelia

var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { transient } from "aurelia-framework";
import { includeEventsIn } from "aurelia-event-aggregator";
let ValidationEventAggregator = class ValidationEventAggregator {
    constructor() {
        this.instanceErrors = new Map();
        includeEventsIn(this);
    }
    render(instruction) {
        this.groupInstanceErrors(instruction);
        let changed = new Set();
        for (let errorInfo of instruction.render.concat(instruction.unrender)) {
            changed.add(errorInfo.result.object);
        }
        this._notify(changed);
    }
    groupInstanceErrors(renderInstruction) {
        for (let { result } of renderInstruction.unrender) {
            let instance = result.object;
            let errorSet = this.instanceErrors.get(instance);
            if (errorSet) {
                if (errorSet.has(result)) {
                    errorSet.delete(result);
                    if (errorSet.size === 0) {
                        this.instanceErrors.delete(instance);
                    }
                }
            }
        }
        for (let { result } of renderInstruction.render) {
            let instance = result.object;
            let errorSet = this.instanceErrors.get(instance);
            if (!errorSet) {
                errorSet = new Set();
                this.instanceErrors.set(instance, errorSet);
            }
            if (!result.valid) {
                errorSet.add(result);
            }
        }
    }
    _notify(instances) {
        instances.forEach((instance) => {
            let errorSet = this.instanceErrors.get(instance);
            this.publish("validationChanged", { instance: instance, errors: Array.from(errorSet || []) });
        });
    }
    get invalidInstances() {
        let instances = new Set();
        if (this.instanceErrors) {
            this.instanceErrors.forEach((errorSet, instance) => {
                instances.add(instance);
            });
        }
        return Array.from(instances);
    }
};
ValidationEventAggregator = __decorate([
    transient(),
    __metadata("design:paramtypes", [])
], ValidationEventAggregator);
export { ValidationEventAggregator };
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