Send separate events for blurring or entering outside change event

Currently, entering in the date field triggers submission before a date
could be entered. We need to separate these events

https://community.openproject.org/wp/45076

frontend/src/app/shared/components/fields/edit/field-types/date-edit-field/date-edit-field.component.ts

@@ -39,6 +39,8 @@ import { TimezoneService } from 'core-app/core/datetime/timezone.service';
         tabindex="-1"
         (changed)="onValueSelected($event)"
         (canceled)="onCancel()"
+        (blurred)="submit($event)"
+        (enterPressed)="submit($event)"
         [initialDate]="formatter(value)"
         [required]="required"
         [disabled]="inFlight"
@@ -52,27 +54,31 @@ export class DateEditFieldComponent extends EditFieldComponent implements OnInit
 
   @InjectField() opModalService:OpModalService;
 
-  ngOnInit() {
+  ngOnInit():void {
     super.ngOnInit();
   }
 
-  public onValueSelected(data:string) {
+  public onValueSelected(data:string):void {
     this.value = this.parser(data);
-    this.handler.handleUserSubmit();
   }
 
-  public onCancel() {
+  public submit(data:string):void {
+    this.onValueSelected(data);
+    void this.handler.handleUserSubmit();
+  }
+
+  public onCancel():void {
     this.handler.handleUserCancel();
   }
 
-  public parser(data:any) {
+  public parser(data:string):string|null {
     if (moment(data, 'YYYY-MM-DD', true).isValid()) {
       return data;
     }
     return null;
   }
 
-  public formatter(data:any) {
+  public formatter(data:string):string|null {
     if (moment(data, 'YYYY-MM-DD', true).isValid()) {
       const d = this.timezoneService.parseDate(data);
       return this.timezoneService.formattedISODate(d);

frontend/src/app/shared/components/op-date-picker/date-picker.directive.ts

@@ -97,12 +97,16 @@ export abstract class AbstractDatePickerDirective extends UntilDestroyedMixin im
   }
 
   closeOnOutsideClick(event:MouseEvent):void {
-    if (!(event.relatedTarget
-      && this.datePickerInstance.datepickerInstance.calendarContainer.contains(event.relatedTarget as HTMLElement))) {
+    if (this.isOutsideClick(event)) {
       this.close();
     }
   }
 
+  isOutsideClick(event:MouseEvent):boolean {
+    return (!(event.relatedTarget
+      && this.datePickerInstance.datepickerInstance.calendarContainer.contains(event.relatedTarget as HTMLElement)));
+  }
+
   close():void {
     this.datePickerInstance.hide();
   }

frontend/src/app/shared/components/op-date-picker/op-single-date-picker/op-single-date-picker.component.html

@@ -8,8 +8,9 @@
   [required]="required"
   [disabled]="disabled"
   (click)="openOnClick()"
+  (keydown.enter)="enterPressed.emit(dateValue)"
   (keydown.escape)="close()"
-  (blur)="closeOnOutsideClick($event)"
   (input)="onInputChange()"
+  (blur)="onBlurred($event)"
   type="text"
 >

frontend/src/app/shared/components/op-date-picker/op-single-date-picker/op-single-date-picker.component.ts

@@ -26,7 +26,12 @@
 // See COPYRIGHT and LICENSE files for more details.
 //++
 
-import { Component, Input, Output } from '@angular/core';
+import {
+  Component,
+  EventEmitter,
+  Input,
+  Output,
+} from '@angular/core';
 import { Instance } from 'flatpickr/dist/types/instance';
 import { KeyCodes } from 'core-app/shared/helpers/keyCodes.enum';
 import { DatePicker } from 'core-app/shared/components/op-date-picker/datepicker';
@@ -42,16 +47,33 @@ import { componentDestroyed } from '@w11k/ngx-componentdestroyed';
 export class OpSingleDatePickerComponent extends AbstractDatePickerDirective {
   @Output() public changed = new DebouncedEventEmitter<string>(componentDestroyed(this));
 
+  @Output() public blurred = new EventEmitter<string>();
+
+  @Output() public enterPressed = new EventEmitter<string>();
+
   @Input() public initialDate = '';
 
   onInputChange():void {
     if (this.inputIsValidDate()) {
       this.changed.emit(this.currentValue);
-    } else {
-      this.changed.emit('');
     }
   }
 
+  onBlurred(event:MouseEvent):void {
+    if (this.isOutsideClick(event)) {
+      this.close();
+      this.blurred.emit(this.currentValue);
+    }
+  }
+
+  get dateValue():string {
+    if (this.inputIsValidDate()) {
+      return this.currentValue;
+    }
+
+    return '';
+  }
+
   protected inputIsValidDate():boolean {
     return (/\d{4}-\d{2}-\d{2}/.exec(this.currentValue)) !== null;
   }