2019-01-18 18:03:45 +01:00
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import { ApplicationRef, Injectable, NgZone } from '@angular/core';
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2019-01-31 11:29:35 +01:00
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import { FormArray, FormGroup } from '@angular/forms';
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import { isNumeric } from 'rxjs/internal/util/isNumeric';
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2019-01-18 18:03:45 +01:00
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import { Rule } from '../../../../core/model/dataset-profile-definition/rule';
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import { VisibilityRule } from './models/visibility-rule';
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import { VisibilityRulesContext } from './models/visibility-rules-context';
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2018-05-28 11:50:42 +02:00
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@Injectable()
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export class VisibilityRulesService {
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2019-01-31 11:29:35 +01:00
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2019-01-18 18:03:45 +01:00
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private visibilityRuleContext: VisibilityRulesContext;
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2018-10-05 17:00:54 +02:00
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private elementVisibilityMap = new Map<String, boolean>();
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2019-01-18 18:03:45 +01:00
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constructor(
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public applicationReference: ApplicationRef,
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public ngZone: NgZone
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) {
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2018-10-05 17:00:54 +02:00
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}
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public checkElementVisibility(id: string): boolean {
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2019-01-28 14:47:31 +01:00
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if (this.visibilityRuleContext.rules.filter(item => item.targetControlId === id).length === 0) { return true; }
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2019-01-29 08:47:50 +01:00
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return this.elementVisibilityMap.has(id) ? this.elementVisibilityMap.get(id) : false;
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2018-10-05 17:00:54 +02:00
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}
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public buildVisibilityRules(item: Array<Rule>) {
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this.visibilityRuleContext = new VisibilityRulesContext();
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2019-01-18 18:03:45 +01:00
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this.visibilityRuleContext.buildVisibilityRuleContext(item || []);
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2018-10-05 17:00:54 +02:00
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}
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2019-01-28 14:47:31 +01:00
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public updateValueAndVisibility(id: string, value: any) {
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2018-10-05 17:00:54 +02:00
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const visibilityRules = this.visibilityRuleContext.rules.filter(item => item.sourceVisibilityRules.filter(source => source.sourceControlId === id).length > 0);
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2019-01-28 14:47:31 +01:00
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visibilityRules.forEach(item => this.evaluateVisibility(item, value));
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2018-10-05 17:00:54 +02:00
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}
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2019-01-28 14:47:31 +01:00
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private evaluateVisibility(visibilityRule: VisibilityRule, value: any) {
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2018-10-05 17:00:54 +02:00
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for (let i = 0; i < visibilityRule.sourceVisibilityRules.length; i++) {
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2019-01-29 08:47:50 +01:00
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if (value != null && (this.parseValue(value) !== this.parseValue(visibilityRule.sourceVisibilityRules[i].sourceControlValue))) {
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2019-01-28 14:47:31 +01:00
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this.elementVisibilityMap.set(visibilityRule.targetControlId, false);
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return;
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2018-10-05 17:00:54 +02:00
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}
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}
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this.elementVisibilityMap.set(visibilityRule.targetControlId, true);
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}
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2018-10-22 11:37:55 +02:00
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parseValue(value: any) {
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if (typeof value === 'string') {
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2019-01-29 08:47:50 +01:00
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if (isNumeric(value)) { return value; }
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else if (value === 'true') {
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return true;
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}
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else if (value === 'false') {
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return false;
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}
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else { return this.translate(value); }
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2018-10-22 11:37:55 +02:00
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} else { return value; }
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}
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2018-10-05 17:00:54 +02:00
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2019-01-31 11:29:35 +01:00
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search(path, obj, target) {
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for (const k in obj) {
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if (obj.hasOwnProperty(k)) {
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if (obj[k] === target) {
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return path + '.' + k;
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} else if (typeof obj[k] === 'object') {
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const result = this.search(path + '.' + k, obj[k], target);
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if (result) {
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return result;
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}
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}
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}
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}
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return false;
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}
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2019-01-28 14:47:31 +01:00
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2019-01-31 11:29:35 +01:00
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scanIfChildsOfCompositeFieldHasVisibleItems(compositeFieldParent: FormGroup): boolean {
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let isVisible = false;
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(<FormArray>(compositeFieldParent.get('fields'))).controls.forEach(element => {
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if (this.checkElementVisibility(element.get('id').value)) {
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isVisible = true;
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}
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});
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return isVisible;
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}
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2018-11-01 17:02:15 +01:00
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private translate(item: any) {
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try {
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return JSON.parse(item).value;
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} catch (error) {
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return item;
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}
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}
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2018-05-28 11:50:42 +02:00
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}
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