feat(module:cascader): support setting status

components/cascader/cascader.component.ts

@@ -17,12 +17,14 @@ import {
   HostListener,
   Input,
   NgZone,
+  OnChanges,
   OnDestroy,
   OnInit,
   Optional,
   Output,
   QueryList,
   Renderer2,
+  SimpleChanges,
   TemplateRef,
   ViewChild,
   ViewChildren,
@@ -37,8 +39,15 @@ import { NzConfigKey, NzConfigService, WithConfig } from 'ng-zorro-antd/core/con
 import { NzNoAnimationDirective } from 'ng-zorro-antd/core/no-animation';
 import { DEFAULT_CASCADER_POSITIONS } from 'ng-zorro-antd/core/overlay';
 import { NzDestroyService } from 'ng-zorro-antd/core/services';
-import { BooleanInput, NgClassType, NgStyleInterface, NzSafeAny } from 'ng-zorro-antd/core/types';
-import { InputBoolean, toArray } from 'ng-zorro-antd/core/util';
+import {
+  BooleanInput,
+  NgClassInterface,
+  NgClassType,
+  NgStyleInterface,
+  NzSafeAny,
+  NzStatus
+} from 'ng-zorro-antd/core/types';
+import { getStatusClassNames, InputBoolean, toArray } from 'ng-zorro-antd/core/util';
 import { NzCascaderI18nInterface, NzI18nService } from 'ng-zorro-antd/i18n';
 
 import { NzCascaderOptionComponent } from './cascader-li.component';
@@ -210,7 +219,9 @@ const defaultDisplayRender = (labels: string[]): string => labels.join(' / ');
     '[class.ant-select-rtl]': `dir ==='rtl'`
   }
 })
-export class NzCascaderComponent implements NzCascaderComponentAsSource, OnInit, OnDestroy, ControlValueAccessor {
+export class NzCascaderComponent
+  implements NzCascaderComponentAsSource, OnInit, OnDestroy, OnChanges, ControlValueAccessor
+{
   readonly _nzModuleName: NzConfigKey = NZ_CONFIG_MODULE_NAME;
   static ngAcceptInputType_nzShowInput: BooleanInput;
   static ngAcceptInputType_nzShowArrow: BooleanInput;
@@ -256,6 +267,8 @@ export class NzCascaderComponent implements NzCascaderComponentAsSource, OnInit,
   @Input() nzMenuStyle: NgStyleInterface | null = null;
   @Input() nzMouseEnterDelay: number = 150; // ms
   @Input() nzMouseLeaveDelay: number = 150; // ms
+  @Input() nzStatus?: NzStatus;
+
   @Input() nzTriggerAction: NzCascaderTriggerType | NzCascaderTriggerType[] = ['click'] as NzCascaderTriggerType[];
   @Input() nzChangeOn?: (option: NzCascaderOption, level: number) => boolean;
   @Input() nzLoadData?: (node: NzCascaderOption, index: number) => PromiseLike<NzSafeAny>;
@@ -277,6 +290,10 @@ export class NzCascaderComponent implements NzCascaderComponentAsSource, OnInit,
   @Output() readonly nzSelect = new EventEmitter<{ option: NzCascaderOption; index: number } | null>();
   @Output() readonly nzClear = new EventEmitter<void>();
 
+  prefixCls: string = 'ant-select';
+  statusCls: NgClassInterface = {};
+  nzHasFeedback: boolean = false;
+
   /**
    * If the dropdown should show the empty content.
    * `true` if there's no options.
@@ -359,15 +376,15 @@ export class NzCascaderComponent implements NzCascaderComponentAsSource, OnInit,
     private cdr: ChangeDetectorRef,
     private i18nService: NzI18nService,
     private destroy$: NzDestroyService,
-    elementRef: ElementRef,
-    renderer: Renderer2,
+    private elementRef: ElementRef,
+    private renderer: Renderer2,
     @Optional() private directionality: Directionality,
     @Host() @Optional() public noAnimation?: NzNoAnimationDirective
   ) {
     this.el = elementRef.nativeElement;
     this.cascaderService.withComponent(this);
-    renderer.addClass(elementRef.nativeElement, 'ant-select');
-    renderer.addClass(elementRef.nativeElement, 'ant-cascader');
+    this.renderer.addClass(this.elementRef.nativeElement, 'ant-select');
+    this.renderer.addClass(this.elementRef.nativeElement, 'ant-cascader');
   }
 
   ngOnInit(): void {
@@ -430,6 +447,13 @@ export class NzCascaderComponent implements NzCascaderComponentAsSource, OnInit,
     this.setupKeydownListener();
   }
 
+  ngOnChanges(changes: SimpleChanges): void {
+    const { nzStatus } = changes;
+    if (nzStatus) {
+      this.setStatusStyles();
+    }
+  }
+
   ngOnDestroy(): void {
     this.clearDelayMenuTimer();
     this.clearDelaySelectTimer();
@@ -761,6 +785,18 @@ export class NzCascaderComponent implements NzCascaderComponentAsSource, OnInit,
     }
   }
 
+  private setStatusStyles(): void {
+    // render status if nzStatus is set
+    this.statusCls = getStatusClassNames(this.prefixCls, this.nzStatus, this.nzHasFeedback);
+    Object.keys(this.statusCls).forEach(status => {
+      if (this.statusCls[status]) {
+        this.renderer.addClass(this.elementRef.nativeElement, status);
+      } else {
+        this.renderer.removeClass(this.elementRef.nativeElement, status);
+      }
+    });
+  }
+
   private setLocale(): void {
     this.locale = this.i18nService.getLocaleData('global');
     this.cdr.markForCheck();

components/cascader/cascader.spec.ts

@@ -68,7 +68,12 @@ describe('cascader', () => {
           NzCascaderModule,
           NzIconTestModule
         ],
-        declarations: [NzDemoCascaderDefaultComponent, NzDemoCascaderLoadDataComponent, NzDemoCascaderRtlComponent]
+        declarations: [
+          NzDemoCascaderDefaultComponent,
+          NzDemoCascaderLoadDataComponent,
+          NzDemoCascaderRtlComponent,
+          NzDemoCascaderStatusComponent
+        ]
       }).compileComponents();
 
       inject([OverlayContainer], (oc: OverlayContainer) => {
@@ -1786,6 +1791,29 @@ describe('cascader', () => {
       expect(itemEl21.querySelector('.anticon')?.classList).toContain('anticon-left');
     }));
   });
+
+  describe('Status', () => {
+    let fixture: ComponentFixture<NzDemoCascaderStatusComponent>;
+    let cascader: DebugElement;
+
+    beforeEach(() => {
+      fixture = TestBed.createComponent(NzDemoCascaderStatusComponent);
+      cascader = fixture.debugElement.query(By.directive(NzCascaderComponent));
+    });
+
+    it('should className correct', () => {
+      fixture.detectChanges();
+      expect(cascader.nativeElement.className).toContain('ant-select-status-error');
+
+      fixture.componentInstance.status = 'warning';
+      fixture.detectChanges();
+      expect(cascader.nativeElement.className).toContain('ant-select-status-warning');
+
+      fixture.componentInstance.status = '';
+      fixture.detectChanges();
+      expect(cascader.nativeElement.className).not.toContain('ant-select-status-warning');
+    });
+  });
 });
 
 const ID_NAME_LIST = [
@@ -2171,3 +2199,11 @@ export class NzDemoCascaderRtlComponent {
   @ViewChild(Dir) dir!: Dir;
   direction = 'rtl';
 }
+
+@Component({
+  template: ` <nz-cascader [nzOptions]="nzOptions" [nzStatus]="status"></nz-cascader> `
+})
+export class NzDemoCascaderStatusComponent {
+  public nzOptions: any[] | null = options1;
+  public status = 'error';
+}

components/cascader/demo/status.md

@@ -0,0 +1,14 @@
+---
+order: 18
+title:
+  zh-CN: 自定义状态
+  en-US: Status
+---
+
+## zh-CN
+
+使用 `nzStatus` 为 Cascader 添加状态，可选 `error` 或者 `warning`。
+
+## en-US
+
+Add status to Cascader with `nzStatus`, which could be `error` or `warning`.

components/cascader/demo/status.ts

@@ -0,0 +1,22 @@
+import { Component } from '@angular/core';
+
+import { NzCascaderOption } from 'ng-zorro-antd/cascader';
+
+@Component({
+  selector: 'nz-demo-cascader-status',
+  template: `
+    <nz-cascader [nzOptions]="nzOptions" nzStatus="error"></nz-cascader>
+    <nz-cascader [nzOptions]="nzOptions" nzStatus="warning"></nz-cascader>
+  `,
+  styles: [
+    `
+      .ant-cascader {
+        width: 100%;
+        margin-bottom: 8px;
+      }
+    `
+  ]
+})
+export class NzDemoCascaderStatusComponent {
+  nzOptions: NzCascaderOption[] = [];
+}

components/cascader/doc/index.en-US.md

@@ -50,6 +50,7 @@ import { NzCascaderModule } from 'ng-zorro-antd/cascader';
 | `[nzShowInput]` | Whether show input | `boolean` | `true` |
 | `[nzShowSearch]` | Whether support search. Cannot be used with `[nzLoadData]` at the same time | `boolean\|NzShowSearchOptions` | `false` |
 | `[nzSize]` | input size, one of `large` `default` `small` | `'large'\|'small'\|'default'` | `'default'` | ✅ |
+| `[nzStatus]` | Set validation status | `'error' \| 'warning'` | - |
 | `[nzSuffixIcon]` | 	The custom suffix icon | `string\|TemplateRef<void>` | - |
 | `[nzValueProperty]` | the value property name of options | `string` | `'value'` |
 | `(ngModelChange)` | Emit on values change | `EventEmitter<any[]>` | - |

components/cascader/doc/index.zh-CN.md

@@ -51,6 +51,7 @@ import { NzCascaderModule } from 'ng-zorro-antd/cascader';
 | `[nzShowInput]` | 显示输入框 | `boolean` | `true` |
 | `[nzShowSearch]` | 是否支持搜索，默认情况下对 `label` 进行全匹配搜索，不能和 `[nzLoadData]` 同时使用 | `boolean\|NzShowSearchOptions` | `false` |
 | `[nzSize]` | 输入框大小，可选 `large` `default` `small` | `'large'\|'small'\|'default'` | `'default'` | ✅ |
+| `[nzStatus]` | 设置校验状态 | `'error' \| 'warning'` | - |
 | `[nzSuffixIcon]` | 自定义的选择框后缀图标 | `string\|TemplateRef<void>` | - |
 | `[nzValueProperty]` | 选项的实际值的属性名 | `string` | `'value'` |
 | `(ngModelChange)` | 值发生变化时触发 | `EventEmitter<any[]>` | - |

components/core/types/public-api.ts

@@ -15,3 +15,5 @@ export * from './any';
 export * from './control-value-accessor';
 export * from './convert-input';
 export * from './input-observable';
+export * from './type';
+export * from './status';

components/core/types/status.ts

@@ -0,0 +1,11 @@
+/**
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
+ */
+
+import { tuple } from './type';
+
+export type NzStatus = '' | 'error' | 'warning';
+
+const ValidateStatuses = tuple('success', 'warning', 'error', 'validating', '');
+export type NzValidateStatus = typeof ValidateStatuses[number];

components/core/types/type.ts

@@ -0,0 +1,6 @@
+/**
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
+ */
+
+export const tuple = <T extends string[]>(...args: T): T => args;

components/core/util/public-api.ts

@@ -19,3 +19,4 @@ export * from './measure-scrollbar';
 export * from './ensure-in-bounds';
 export * from './tick';
 export * from './observable';
+export * from './status-util';

components/core/util/status-util.ts

@@ -0,0 +1,20 @@
+/**
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
+ */
+
+import { NgClassInterface, NzValidateStatus } from 'ng-zorro-antd/core/types';
+
+export function getStatusClassNames(
+  prefixCls: string,
+  status?: NzValidateStatus,
+  hasFeedback?: boolean
+): NgClassInterface {
+  return {
+    [`${prefixCls}-status-success`]: status === 'success',
+    [`${prefixCls}-status-warning`]: status === 'warning',
+    [`${prefixCls}-status-error`]: status === 'error',
+    [`${prefixCls}-status-validating`]: status === 'validating',
+    [`${prefixCls}-has-feedback`]: hasFeedback
+  };
+}