fix(module:time-picker): allow inputting string type

components/i18n/date-helper.service.spec.ts

@@ -35,6 +35,11 @@ describe('DateHelperService', () => {
     it('should get first day of week with 0 by en_US', () => {
       expect(dateHelper.getFirstDayOfWeek()).toBe(0);
     });
+
+    it('should do parseTime correctly', () => {
+      expect(dateHelper.parseTime('14:00')?.toTimeString().substr(0, 8)).toBe('14:00:00');
+      expect(dateHelper.parseTime('4:00')?.toTimeString().substr(0, 8)).toBe('04:00:00');
+    });
   });
 
   describe('Formatting with Data-fns', () => {
@@ -56,6 +61,11 @@ describe('DateHelperService', () => {
       expect(dateHelper.format(date, 'yyyy-MM-dd')).toBe('2018-12-31');
       expect(dateHelper.format(date, 'II')).toBe('01'); // ISO week
     });
+
+    it('should do parseTime correctly', () => {
+      expect(dateHelper.parseTime('14:00', 'HH:mm')?.toTimeString().substr(0, 8)).toBe('14:00:00');
+      expect(dateHelper.parseTime('4:00', 'H:mm')?.toTimeString().substr(0, 8)).toBe('04:00:00');
+    });
   });
 
   describe('Custom firstDayOfWeek', () => {

components/i18n/date-helper.service.ts

@@ -12,7 +12,6 @@ import fnsFormat from 'date-fns/format';
 import fnsGetISOWeek from 'date-fns/getISOWeek';
 import fnsParse from 'date-fns/parse';
 
-import parseISO from 'date-fns/parseISO';
 import { WeekDayIndex } from 'ng-zorro-antd/core/time';
 import { convertTokens } from './convert-tokens';
 import { mergeDateConfig, NZ_DATE_CONFIG, NZ_DATE_FNS_COMPATIBLE, NzDateConfig } from './date-config';
@@ -47,13 +46,7 @@ export abstract class DateHelperService {
   abstract getFirstDayOfWeek(): WeekDayIndex;
   abstract format(date: Date, formatStr: string): string;
   abstract parseDate(text: string, formatStr?: string): Date;
-
-  parseTime(text: string): Date | undefined {
-    if (!text) {
-      return;
-    }
-    return parseISO(`1970-01-01 ${text}`);
-  }
+  abstract parseTime(text: string, formatStr?: string): Date | undefined;
 }
 
 /**
@@ -94,6 +87,10 @@ export class DateHelperByDateFns extends DateHelperService {
       weekStartsOn: this.getFirstDayOfWeek()
     });
   }
+
+  parseTime(text: string, formatStr: string): Date | undefined {
+    return this.parseDate(text, formatStr);
+  }
 }
 
 /**
@@ -122,4 +119,11 @@ export class DateHelperByDatePipe extends DateHelperService {
   parseDate(text: string): Date {
     return new Date(text);
   }
+
+  parseTime(text: string): Date | undefined {
+    if (!text) {
+      return;
+    }
+    return new Date(Date.parse(`1970-01-01 ${text}`));
+  }
 }

components/time-picker/time-picker-panel.component.ts

@@ -404,7 +404,8 @@ export class NzTimePickerPanelComponent implements ControlValueAccessor, OnInit,
   scrollToSelected(instance: HTMLElement, index: number, duration: number = 0, unit: NzTimePickerUnit): void {
     const transIndex = this.translateIndex(index, unit);
     const currentOption = (instance.children[transIndex] || instance.children[0]) as HTMLElement;
-    this.scrollTo(instance, currentOption.offsetTop, duration);
+    const parentPaddingTop = 4;
+    this.scrollTo(instance, currentOption.offsetTop - parentPaddingTop, duration);
   }
 
   translateIndex(index: number, unit: NzTimePickerUnit): number {

components/time-picker/time-picker.component.spec.ts

@@ -122,7 +122,28 @@ describe('time-picker', () => {
       const result = (nzOnChange.calls.allArgs()[0] as Date[])[0];
       expect(result.getHours()).toBe(0);
     }));
+    it('should support ISO string', fakeAsync(() => {
+      testComponent.date = '2020-03-27T13:49:54.917Z';
+      fixture.detectChanges();
+      tick(500);
+      fixture.detectChanges();
+      testComponent.open = true;
+      fixture.detectChanges();
+      tick(500);
+      fixture.detectChanges();
+      const date = new Date(testComponent.date);
+      expect(queryFromOverlay('.ant-picker-time-panel-column:nth-child(1) .ant-picker-time-panel-cell-selected > div')!.textContent).toBe(
+        date.getHours().toString()
+      );
+      expect(queryFromOverlay('.ant-picker-time-panel-column:nth-child(2) .ant-picker-time-panel-cell-selected > div')!.textContent).toBe(
+        date.getMinutes().toString()
+      );
+    }));
   });
+
+  function queryFromOverlay(selector: string): HTMLElement {
+    return overlayContainer.getContainerElement().querySelector(selector) as HTMLElement;
+  }
 });
 
 @Component({
@@ -142,7 +163,7 @@ export class NzTestTimePickerComponent {
   open = false;
   openChange = jasmine.createSpy('open change');
   autoFocus = false;
-  date = new Date();
+  date: Date | string = new Date();
   disabled = false;
   use12Hours = false;
   onChange(): void {}

components/time-picker/time-picker.component.ts

@@ -28,6 +28,7 @@ import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
 import { slideMotion } from 'ng-zorro-antd/core/animation';
 
 import { NzConfigService, WithConfig } from 'ng-zorro-antd/core/config';
+import { warn } from 'ng-zorro-antd/core/logger';
 import { InputBoolean, isNotNil } from 'ng-zorro-antd/core/util';
 
 const NZ_CONFIG_COMPONENT_NAME = 'timePicker';
@@ -250,8 +251,13 @@ export class NzTimePickerComponent implements ControlValueAccessor, OnInit, Afte
     this.updateAutoFocus();
   }
 
-  writeValue(time: Date | null): void {
-    this.value = time;
+  writeValue(time: Date): void {
+    if (time instanceof Date) {
+      this.value = time;
+    } else {
+      warn('Non-Date type is not recommended for time-picker, use "Date" type');
+      this.value = time ? new Date(time) : null;
+    }
     this.cdr.markForCheck();
   }
 

components/time-picker/time-value-accessor.directive.ts

@@ -33,7 +33,7 @@ export class NzTimeValueAccessorDirective implements ControlValueAccessor {
 
   changed(): void {
     if (this._onChange) {
-      const value = this.dateHelper.parseTime(this.elementRef.nativeElement.value);
+      const value = this.dateHelper.parseTime(this.elementRef.nativeElement.value, this.nzTime);
       this._onChange(value!);
     }
   }