feat(module:tree-select): add status

components/tree-select/demo/status.md

@@ -0,0 +1,15 @@
+---
+order: 8
+title:
+  zh-CN: 自定义状态
+  en-US: Status
+---
+
+## zh-CN
+
+使用 `nzStatus` 为 `TreeSelect` 添加状态，可选 `error` 或者 `warning`。
+
+## en-US
+
+Add status to TreeSelect with `nzStatus`, which could be `error` or `warning`.
+

components/tree-select/demo/status.ts

@@ -0,0 +1,31 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'nz-demo-tree-select-status',
+  template: `
+    <nz-space nzDirection="vertical" style="width:100%;">
+      <nz-tree-select
+        *nzSpaceItem
+        [nzNodes]="nodes"
+        nzStatus="error"
+        nzPlaceHolder="Error"
+        [(ngModel)]="value"
+        style="width:100%;"
+      ></nz-tree-select>
+      <nz-tree-select
+        *nzSpaceItem
+        nzMultiple
+        [nzNodes]="nodes"
+        nzShowSearch
+        nzStatus="warning"
+        nzPlaceHolder="Warning multiple"
+        [(ngModel)]="value"
+        style="width:100%;"
+      ></nz-tree-select>
+    </nz-space>
+  `
+})
+export class NzDemoTreeSelectStatusComponent {
+  value?: string;
+  nodes = [];
+}

components/tree-select/doc/index.en-US.md

@@ -35,6 +35,7 @@ import { NzTreeSelectModule } from 'ng-zorro-antd/tree-select';
 | `[nzMultiple]` | Support multiple or not, will be `true` when enable `nzCheckable`. | `boolean` | `false` |
 | `[nzHideUnMatched]` | Hide unmatched nodes while searching | `boolean` | `false` | ✅ |
 | `[nzSize]` | To set the size of the select input | `'large' \| 'small' \| 'default'` | `'default'` | ✅ |
+| `[nzStatus]` | Set validation status	 | `'error' \| 'warning'` | - |  |
 | `[nzCheckable]` | Whether to show checkbox on the treeNodes | `boolean` | `false` |
 | `[nzCheckStrictly]` | Check treeNode precisely; parent treeNode and children treeNodes are not associated | `boolean` | `false` |
 | `[nzShowExpand]` | Show a Expand Icon before the treeNodes | `boolean` | `true` | |

components/tree-select/doc/index.zh-CN.md

@@ -35,6 +35,7 @@ import { NzTreeSelectModule } from 'ng-zorro-antd/tree-select';
 | `[nzMultiple]` | 支持多选（当设置 nzCheckable 时自动变为true） | `boolean` | `false` |
 | `[nzHideUnMatched]` | 搜索隐藏未匹配的节点 | `boolean` | `false` | ✅ |
 | `[nzSize]` | 选择框大小 | `'large' \| 'small' \| 'default'` | `'default'` | ✅ |
+| `[nzStatus]` | 设置校验状态 | `'error' \| 'warning'` | - |  |
 | `[nzCheckable]` | 节点前添加 Checkbox 复选框 | `boolean` | `false` |
 | `[nzCheckStrictly]` | checkable 状态下节点选择完全受控（父子节点选中状态不再关联） | `boolean` | `false` |
 | `[nzShowExpand]` | 节点前添加展开图标 | `boolean` | `true` | |

components/tree-select/tree-select.component.ts

@@ -44,8 +44,16 @@ import {
   NzTreeNode,
   NzTreeNodeOptions
 } from 'ng-zorro-antd/core/tree';
-import { BooleanInput, NgStyleInterface, NzSizeLDSType, OnChangeType, OnTouchedType } from 'ng-zorro-antd/core/types';
-import { InputBoolean, isNotNil } from 'ng-zorro-antd/core/util';
+import {
+  BooleanInput,
+  NgClassInterface,
+  NgStyleInterface,
+  NzSizeLDSType,
+  NzStatus,
+  OnChangeType,
+  OnTouchedType
+} from 'ng-zorro-antd/core/types';
+import { getStatusClassNames, InputBoolean, isNotNil } from 'ng-zorro-antd/core/util';
 import { NzSelectSearchComponent } from 'ng-zorro-antd/select';
 import { NzTreeComponent } from 'ng-zorro-antd/tree';
 
@@ -253,6 +261,7 @@ export class NzTreeSelectComponent extends NzTreeBase implements ControlValueAcc
   @Input() nzDropdownStyle: NgStyleInterface | null = null;
   @Input() nzDropdownClassName?: string;
   @Input() @WithConfig() nzBackdrop = false;
+  @Input() nzStatus: NzStatus = '';
   @Input()
   set nzExpandedKeys(value: string[]) {
     this.expandedKeys = value;
@@ -285,6 +294,10 @@ export class NzTreeSelectComponent extends NzTreeBase implements ControlValueAcc
     return this.nzTreeTemplate || this.nzTreeTemplateChild;
   }
 
+  prefixCls: string = 'ant-select';
+  statusCls: NgClassInterface = {};
+  nzHasFeedback: boolean = false;
+
   dropdownClassName = TREE_SELECT_DEFAULT_CLASS;
   triggerWidth?: number;
   isComposing = false;
@@ -370,15 +383,30 @@ export class NzTreeSelectComponent extends NzTreeBase implements ControlValueAcc
     this.closeDropDown();
   }
 
+  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);
+      }
+    });
+  }
+
   ngOnChanges(changes: SimpleChanges): void {
-    const { nzNodes, nzDropdownClassName } = changes;
+    const { nzNodes, nzDropdownClassName, nzStatus } = changes;
     if (nzNodes) {
       this.updateSelectedNodes(true);
     }
     if (nzDropdownClassName) {
       const className = this.nzDropdownClassName && this.nzDropdownClassName.trim();
       this.dropdownClassName = className ? `${TREE_SELECT_DEFAULT_CLASS} ${className}` : TREE_SELECT_DEFAULT_CLASS;
     }
+    if (nzStatus) {
+      this.setStatusStyles();
+    }
   }
 
   writeValue(value: string[] | string): void {

components/tree-select/tree-select.spec.ts

@@ -16,6 +16,7 @@ import {
   typeInElement
 } from 'ng-zorro-antd/core/testing';
 import { NzTreeNode, NzTreeNodeOptions } from 'ng-zorro-antd/core/tree';
+import { NzStatus } from 'ng-zorro-antd/core/types';
 
 import { NzTreeSelectComponent } from './tree-select.component';
 import { NzTreeSelectModule } from './tree-select.module';
@@ -33,7 +34,8 @@ describe('tree-select component', () => {
           NzTestTreeSelectBasicComponent,
           NzTestTreeSelectCheckableComponent,
           NzTestTreeSelectFormComponent,
-          NzTestTreeSelectCustomizedIconComponent
+          NzTestTreeSelectCustomizedIconComponent,
+          NzTestTreeSelectStatusComponent
         ],
         providers: [
           {
@@ -606,6 +608,29 @@ describe('tree-select component', () => {
       expect(overlayContainerElement.querySelector('i.anticon.anticon-frown-o')).toBeTruthy();
     }));
   });
+
+  describe('Status', () => {
+    let fixture: ComponentFixture<NzTestTreeSelectStatusComponent>;
+    let treeSelect: DebugElement;
+
+    beforeEach(() => {
+      fixture = TestBed.createComponent(NzTestTreeSelectStatusComponent);
+      treeSelect = fixture.debugElement.query(By.directive(NzTreeSelectComponent));
+    });
+
+    it('should className correct', () => {
+      fixture.detectChanges();
+      expect(treeSelect.nativeElement.className).toContain('ant-select-status-error');
+
+      fixture.componentInstance.status = 'warning';
+      fixture.detectChanges();
+      expect(treeSelect.nativeElement.className).toContain('ant-select-status-warning');
+
+      fixture.componentInstance.status = '';
+      fixture.detectChanges();
+      expect(treeSelect.nativeElement.className).not.toContain('ant-select-status-warning');
+    });
+  });
 });
 
 @Component({
@@ -863,3 +888,41 @@ export class NzTestTreeSelectCustomizedIconComponent {
     })
   ];
 }
+
+@Component({
+  template: `
+    <nz-tree-select
+      style="width:100%;margin:20px 0;"
+      [nzNodes]="nodes"
+      nzShowSearch
+      [nzStatus]="status"
+      nzPlaceHolder="Please select"
+      [(ngModel)]="value"
+    ></nz-tree-select>
+  `
+})
+export class NzTestTreeSelectStatusComponent {
+  status: NzStatus = 'error';
+  value?: string = '1001';
+  nodes = [
+    {
+      title: 'parent 1',
+      key: '100',
+      children: [
+        {
+          title: 'parent 1-0',
+          key: '1001',
+          children: [
+            { title: 'leaf 1-0-0', key: '10010', isLeaf: true },
+            { title: 'leaf 1-0-1', key: '10011', isLeaf: true }
+          ]
+        },
+        {
+          title: 'parent 1-1',
+          key: '1002',
+          children: [{ title: 'leaf 1-1-0', key: '10020', isLeaf: true }]
+        }
+      ]
+    }
+  ];
+}