UI: Fixed widget config forms validation.

ui-ngx/src/app/modules/home/components/widget/config/widget-config.component.models.ts

@@ -69,12 +69,12 @@ export abstract class BasicWidgetConfigComponent extends PageComponent implement
   ngOnInit() {}
 
   ngAfterViewInit(): void {
-    setTimeout(() => {
     if (!this.validateConfig()) {
+      setTimeout(() => {
           this.onConfigChanged(this.prepareOutputConfig(this.configForm().getRawValue()));
-      }
       }, 0);
     }
+  }
 
   protected setupConfig(widgetConfig: WidgetConfigComponentData) {
     if (this.isAdd) {

ui-ngx/src/app/modules/home/components/widget/config/widget-settings.component.ts

@@ -29,10 +29,14 @@ import {
   ViewContainerRef
 } from '@angular/core';
 import {
+  AbstractControl,
   ControlValueAccessor,
+  NG_VALIDATORS,
   NG_VALUE_ACCESSOR,
   UntypedFormBuilder,
   UntypedFormGroup,
+  ValidationErrors,
+  Validator,
   Validators
 } from '@angular/forms';
 import { Subscription } from 'rxjs';
@@ -54,9 +58,14 @@ import { WidgetConfigComponentData } from '@home/models/widget-component.models'
     provide: NG_VALUE_ACCESSOR,
     useExisting: forwardRef(() => WidgetSettingsComponent),
     multi: true
+  },
+  {
+    provide: NG_VALIDATORS,
+    useExisting: forwardRef(() => WidgetSettingsComponent),
+    multi: true
   }]
 })
-export class WidgetSettingsComponent implements ControlValueAccessor, OnInit, OnDestroy, AfterViewInit, OnChanges {
+export class WidgetSettingsComponent implements ControlValueAccessor, OnInit, OnDestroy, AfterViewInit, OnChanges, Validator {
 
   @ViewChild('definedSettingsContent', {read: ViewContainerRef, static: true}) definedSettingsContainer: ViewContainerRef;
 
@@ -89,7 +98,6 @@ export class WidgetSettingsComponent implements ControlValueAccessor, OnInit, On
   private definedSettingsComponent: IWidgetSettingsComponent;
 
   private widgetSettingsFormData: JsonFormComponentData;
-
   private propagateChange = (v: any) => { };
 
   constructor(private translate: TranslateService,
@@ -193,11 +201,7 @@ export class WidgetSettingsComponent implements ControlValueAccessor, OnInit, On
 
   private updateModel(settings: WidgetSettings) {
     this.widgetSettingsFormData.model = settings;
-    if (this.definedSettingsComponent || this.widgetSettingsFormGroup.valid) {
     this.propagateChange(this.widgetSettingsFormData);
-    } else {
-      this.propagateChange(null);
-    }
   }
 
   private validateDefinedDirective() {
@@ -232,9 +236,24 @@ export class WidgetSettingsComponent implements ControlValueAccessor, OnInit, On
     }
   }
 
-  validate() {
+  validate(control: AbstractControl): ValidationErrors | null {
     if (this.useDefinedDirective()) {
-      this.definedSettingsComponent.validate();
+      if (!this.definedSettingsComponent.validateSettings()) {
+        return {
+          widgetSettings: {
+            valid: false
           }
+        };
+      }
+    } else if (this.useJsonForm()) {
+      if (!this.widgetSettingsFormGroup.valid) {
+        return {
+          widgetSettings: {
+            valid: false
+          }
+        };
+      }
+    }
+    return null;
   }
 }

ui-ngx/src/app/modules/home/components/widget/lib/settings/control/persistent-table-widget-settings.component.ts

@@ -115,7 +115,7 @@ export class PersistentTableWidgetSettingsComponent extends WidgetSettingsCompon
     });
   }
 
-  protected validateSettings(): boolean {
+  public validateSettings(): boolean {
     const displayColumns: string[] = this.persistentTableWidgetSettingsForm.get('displayColumns').value;
     this.columnsChipList.errorState = !displayColumns?.length;
     return super.validateSettings();

ui-ngx/src/app/modules/home/components/widget/widget-config.component.ts

@@ -903,7 +903,7 @@ export class WidgetConfigComponent extends PageComponent implements OnInit, OnDe
           valid: false
         }
       };
-    } else if (!this.advancedSettings.valid || (this.displayAdvancedAppearance && !this.modelValue.config.settings)) {
+    } else if (!this.advancedSettings.valid) {
       return {
         advancedSettings: {
           valid: false

ui-ngx/src/app/shared/models/widget.models.ts

@@ -38,7 +38,7 @@ import { AbstractControl, UntypedFormGroup } from '@angular/forms';
 import { Observable } from 'rxjs';
 import { Dashboard } from '@shared/models/dashboard.models';
 import { IAliasController } from '@core/api/widget-api.models';
-import { isEmptyStr, isNotEmptyStr } from '@core/utils';
+import { isNotEmptyStr } from '@core/utils';
 import { WidgetConfigComponentData } from '@home/models/widget-component.models';
 import { ComponentStyle, Font, TimewindowStyle } from '@shared/models/widget-settings.models';
 import { NULL_UUID } from '@shared/models/id/has-uuid';
@@ -750,23 +750,10 @@ export interface IWidgetSettingsComponent {
   functionScopeVariables: string[];
   settings: WidgetSettings;
   settingsChanged: Observable<WidgetSettings>;
-  validate();
+  validateSettings(): boolean;
   [key: string]: any;
 }
 
-const removeEmptyWidgetSettings = (settings: WidgetSettings): WidgetSettings => {
-  if (settings) {
-    const keys = Object.keys(settings);
-    for (const key of keys) {
-      const val = settings[key];
-      if (val === null || isEmptyStr(val)) {
-        delete settings[key];
-      }
-    }
-  }
-  return settings;
-};
-
 @Directive()
 // eslint-disable-next-line @angular-eslint/directive-class-suffix
 export abstract class WidgetSettingsComponent extends PageComponent implements
@@ -823,15 +810,15 @@ export abstract class WidgetSettingsComponent extends PageComponent implements
   ngOnInit() {}
 
   ngAfterViewInit(): void {
-    setTimeout(() => {
     if (!this.validateSettings()) {
-        this.settingsChangedEmitter.emit(null);
-      }
+      setTimeout(() => {
+        this.onSettingsChanged(this.prepareOutputSettings(this.settingsForm().getRawValue()));
       }, 0);
     }
+  }
 
-  validate() {
-    this.onValidate();
+  public validateSettings(): boolean {
+    return this.settingsForm().valid;
   }
 
   protected setupSettings(settings: WidgetSettings) {
@@ -847,8 +834,8 @@ export abstract class WidgetSettingsComponent extends PageComponent implements
         this.updateValidators(true, trigger);
       });
     }
-    this.settingsForm().valueChanges.subscribe((updated: any) => {
-      this.onSettingsChanged(this.prepareOutputSettings(updated));
+    this.settingsForm().valueChanges.subscribe(() => {
+      this.onSettingsChanged(this.prepareOutputSettings(this.settingsForm().getRawValue()));
     });
   }
 
@@ -867,12 +854,8 @@ export abstract class WidgetSettingsComponent extends PageComponent implements
   }
 
   protected onSettingsChanged(updated: WidgetSettings) {
-    this.settingsValue = removeEmptyWidgetSettings(updated);
-    if (this.validateSettings()) {
+    this.settingsValue = updated;
     this.settingsChangedEmitter.emit(this.settingsValue);
-    } else {
-      this.settingsChangedEmitter.emit(null);
-    }
   }
 
   protected doUpdateSettings(settingsForm: UntypedFormGroup, settings: WidgetSettings) {
@@ -886,12 +869,6 @@ export abstract class WidgetSettingsComponent extends PageComponent implements
     return settings;
   }
 
-  protected validateSettings(): boolean {
-    return this.settingsForm().valid;
-  }
-
-  protected onValidate() {}
-
   protected abstract settingsForm(): UntypedFormGroup;
 
   protected abstract onSettingsSet(settings: WidgetSettings);