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63 lines
2.7 KiB
TypeScript
63 lines
2.7 KiB
TypeScript
import { VisibilityRule } from './models/VisibilityRule';
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import { VisibilityRulesContext } from './models/VisibilityRulesContext';
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import { FormGroup } from '@angular/forms';
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import { Injectable } from '@angular/core';
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import { Rule } from '../models/Rule'
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@Injectable()
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export class VisibilityRulesService {
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public formGroup: FormGroup;
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public visibilityRuleContext: VisibilityRulesContext;
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public fieldsPathMemory: any = {};
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private elementVisibilityMap = new Map<String, boolean>();
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public isElementVisible(pathKey: string, id: string) {
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if (!this.fieldsPathMemory[id] && pathKey) this.fieldsPathMemory[id] = pathKey;
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if (this.checkElementVisibility(id)) {
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return true
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} else {
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this.clearValues(pathKey)
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return false;
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}
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}
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public checkElementVisibility(id: string): boolean {
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if (!this.elementVisibilityMap.has(id) || this.elementVisibilityMap.get(id)) return true;
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else return false;
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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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this.visibilityRuleContext.buildVisibilityRuleContext(item);
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this.visibilityRuleContext.rules.forEach(item => this.evaluateVisibility(item))
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}
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public updateValueAndVisibility(id: string) {
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let visibilityRules = this.visibilityRuleContext.rules.filter(item => item.sourceVisibilityRules.filter(source => source.sourceControlId === id).length > 0);
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visibilityRules.forEach(item => this.evaluateVisibility(item))
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}
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private evaluateVisibility(visibilityRule: VisibilityRule) {
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for (let i = 0; i < visibilityRule.sourceVisibilityRules.length; i++) {
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let pathKey = this.fieldsPathMemory[visibilityRule.sourceVisibilityRules[i].sourceControlId];
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if (this.formGroup.get(pathKey + '.value') && (!this.formGroup.get(pathKey + '.value').value || ""+this.formGroup.get(pathKey + '.value').value != ""+visibilityRule.sourceVisibilityRules[i].sourceControlValue)) {
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this.elementVisibilityMap.set(visibilityRule.targetControlId, false)
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return;
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}
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this.elementVisibilityMap.set(visibilityRule.targetControlId, true)
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}
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}
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private getParentPath(parentId: string): string {
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return '';
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}
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private clearValues(pathKey) {
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if (pathKey && this.formGroup.get(pathKey + '.value')) this.formGroup.get(pathKey + '.value').patchValue(null)
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if (pathKey && this.formGroup.get(pathKey)["controls"].fields) {
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for (var i = 0; i < this.formGroup.get(pathKey)["controls"].fields.length; i++)
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this.clearValues(pathKey + '.fields.' + i);
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}
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}
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} |