feat(module:modal): draggable (#8419)

components/modal/demo/draggable.md

@@ -0,0 +1,14 @@
+---
+order: 11
+title:
+  zh-CN: 基本
+  en-US: Draggable
+---
+
+## zh-CN
+
+可拖动模态。
+
+## en-US
+
+Draggable modal.

components/modal/demo/draggable.ts

@@ -0,0 +1,43 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'nz-demo-modal-draggable',
+  template: `
+    <button nz-button nzType="default" (click)="showModal()">
+      <span>Open Draggable Modal</span>
+    </button>
+
+    <nz-modal
+      nzDraggable
+      nzCentered
+      [(nzVisible)]="isVisible"
+      nzTitle="Draggable Modal"
+      (nzOnCancel)="handleCancel()"
+      (nzOnOk)="handleOk()"
+    >
+      <ng-container *nzModalContent>
+        <p>Just don't learn physics at school and your life will be full of magic and miracles.</p>
+        <p>Day before yesterday I saw a rabbit, and yesterday a deer, and today, you.</p>
+      </ng-container>
+    </nz-modal>
+  `
+})
+export class NzDemoModalDraggableComponent {
+  isVisible = false;
+
+  constructor() {}
+
+  showModal(): void {
+    this.isVisible = true;
+  }
+
+  handleOk(): void {
+    console.log('Button ok clicked!');
+    this.isVisible = false;
+  }
+
+  handleCancel(): void {
+    console.log('Button cancel clicked!');
+    this.isVisible = false;
+  }
+}

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

@@ -40,6 +40,7 @@ import { NzModalModule } from 'ng-zorro-antd/modal';
 | nzCancelLoading     | 取消按钮 loading                                                                                                                                                                                                                                                                    | `boolean`                                        | `false`             |
 | nzOkDisabled        | 是否禁用确定按钮                                                                                                                                                                                                                                                                    | `boolean`                                        | `false`             |
 | nzCancelDisabled    | 是否禁用取消按钮                                                                                                                                                                                                                                                                    | `boolean`                                        | `false`             |
+| nzDraggable         | 模态框是否可拖动                                                                                                                                                                                                                                                                    | `boolean`                                        | `false`             |
 | nzFooter            | 底部内容。<i>1. 仅在普通模式下有效。<br>2. 可通过传入 ModalButtonOptions 来最大程度自定义按钮（详见案例或下方说明）。<br>3. 当不需要底部时，可以设为 null</i>                                                                                                                       | string<br>TemplateRef<br>ModalButtonOptions      | 默认的确定取消按钮  |
 | nzKeyboard          | 是否支持键盘 esc 关闭                                                                                                                                                                                                                                                               | `boolean`                                        | `true`              |
 | nzMask              | 是否展示遮罩                                                                                                                                                                                                                                                                        | `boolean`                                        | `true`              | ✅       |
@@ -119,7 +120,7 @@ constructor(modal: NzModalService) {
 | close(result: any)                       | 关闭(隐藏)对话框。<i>注：当用于以服务方式创建的对话框，此方法将直接 销毁 对话框（同 destroy 方法）</i>                                  |
 | destroy(result: any)                     | 销毁对话框。<i>注：仅用于服务方式创建的对话框（非服务方式创建的对话框，此方法只会隐藏对话框）</i>                                       |
 | getContentComponent()                    | 获取对话框内容中`nzContent`的 Component 实例 instance。<i>注：当对话框还未初始化完毕（`ngOnInit`未执行）时，此函数将返回`undefined`</i> |
-| getContentComponentRef()                 | 获取对话框内容中`nzContent`的 Component 引用 ComponentRef。<i>注：当对话框还未初始化完毕（`ngOnInit`未执行）时，此函数将返回`null`</i>         |
+| getContentComponentRef()                 | 获取对话框内容中`nzContent`的 Component 引用 ComponentRef。<i>注：当对话框还未初始化完毕（`ngOnInit`未执行）时，此函数将返回`null`</i>  |
 | triggerOk()                              | 手动触发 nzOnOk                                                                                                                         |
 | triggerCancel()                          | 手动触发 nzOnCancel                                                                                                                     |
 | updateConfig(config: ModalOptions): void | 更新配置                                                                                                                                |

components/modal/modal-container.component.ts

@@ -4,6 +4,7 @@
  */
 
 import { FocusTrapFactory } from '@angular/cdk/a11y';
+import { CdkDrag, CdkDragHandle } from '@angular/cdk/drag-drop';
 import { OverlayRef } from '@angular/cdk/overlay';
 import { CdkPortalOutlet, PortalModule } from '@angular/cdk/portal';
 import { DOCUMENT, NgClass, NgStyle } from '@angular/common';
@@ -38,6 +39,9 @@ import { ModalOptions } from './modal-types';
   template: `
     <div
       #modalElement
+      cdkDrag
+      cdkDragBoundary=".cdk-overlay-container"
+      [cdkDragDisabled]="!config.nzDraggable"
       role="document"
       class="ant-modal"
       [ngClass]="config.nzClassName!"
@@ -49,7 +53,7 @@ import { ModalOptions } from './modal-types';
           <button nz-modal-close (click)="onCloseClick()"></button>
         }
         @if (config.nzTitle) {
-          <div nz-modal-title></div>
+          <div nz-modal-title cdkDragHandle [style.cursor]="config.nzDraggable ? 'move' : 'auto'"></div>
         }
 
         <div class="ant-modal-body" [ngStyle]="config.nzBodyStyle!">
@@ -92,7 +96,9 @@ import { ModalOptions } from './modal-types';
     NzModalTitleComponent,
     PortalModule,
     NzModalFooterComponent,
-    NzPipesModule
+    NzPipesModule,
+    CdkDrag,
+    CdkDragHandle
   ],
   standalone: true
 })

components/modal/modal-types.ts

@@ -28,6 +28,7 @@ export class ModalOptions<T = NzSafeAny, D = NzSafeAny, R = NzSafeAny> {
   nzOkDisabled?: boolean = false;
   nzCancelDisabled?: boolean = false;
   nzCancelLoading?: boolean = false;
+  nzDraggable?: boolean = false;
   nzNoAnimation?: boolean = false;
   nzAutofocus?: 'ok' | 'cancel' | 'auto' | null = 'auto';
   nzMask?: boolean;

components/modal/modal.component.ts

@@ -57,6 +57,7 @@ export class NzModalComponent<T extends ModalOptions = NzSafeAny, R = NzSafeAny>
   static ngAcceptInputType_nzNoAnimation: BooleanInput;
   static ngAcceptInputType_nzOkDanger: BooleanInput;
   static ngAcceptInputType_nzCentered: BooleanInput;
+  static ngAcceptInputType_nzDraggable: BooleanInput;
 
   @Input() @InputBoolean() nzMask?: boolean;
   @Input() @InputBoolean() nzMaskClosable?: boolean;
@@ -70,6 +71,7 @@ export class NzModalComponent<T extends ModalOptions = NzSafeAny, R = NzSafeAny>
   @Input() @InputBoolean() nzKeyboard: boolean = true;
   @Input() @InputBoolean() nzNoAnimation = false;
   @Input() @InputBoolean() nzCentered = false;
+  @Input() @InputBoolean() nzDraggable = false;
   @Input() nzContent?: string | TemplateRef<{}> | Type<T>;
   @Input() nzFooter?: string | TemplateRef<{}> | Array<ModalButtonOptions<T>> | null;
   @Input() nzZIndex: number = 1000;

components/modal/modal.spec.ts

@@ -1328,6 +1328,7 @@ describe('NzModal', () => {
       fixture.detectChanges();
       expect((overlayContainerElement.querySelector('.ant-modal') as HTMLDivElement).style.width).toBe('416px');
       expect(modalRef.getConfig().nzMaskClosable).toBe(false);
+      expect(modalRef.getConfig().nzDraggable).toBe(false);
       expect(modalRef.getConfig().nzCentered).toBe(false);
       expect(overlayContainerElement.querySelectorAll('nz-modal-confirm-container').length).toBe(1);
       expect(overlayContainerElement.querySelector('.ant-modal-confirm-title')!.textContent).toBe('Test Title');
@@ -1680,6 +1681,37 @@ describe('NzModal', () => {
 
       expect(overlayContainerElement.querySelector('nz-modal-container')).toBeNull();
     }));
+
+    it('should be draggable when nzDraggable is set to true', fakeAsync(() => {
+      componentInstance.isVisible = true;
+      componentInstance.isDraggable = true;
+      componentFixture.detectChanges();
+      flush();
+      expect(overlayContainerElement.querySelector('.cdk-drag')).not.toBeNull();
+
+      componentInstance.isDraggable = false;
+      componentFixture.detectChanges();
+      flush();
+
+      expect(overlayContainerElement.querySelector('.cdk-drag-disabled')).not.toBeNull();
+
+      componentFixture.destroy();
+    }));
+
+    it('should have "move" cursor on the top of modal when modal is draggable', fakeAsync(() => {
+      componentInstance.isVisible = true;
+      componentInstance.isDraggable = true;
+      componentFixture.detectChanges();
+      flush();
+      const modalHeader = overlayContainerElement.querySelector('.ant-modal-header');
+      expect(getComputedStyle(modalHeader!).cursor).toEqual('move');
+
+      componentInstance.isVisible = true;
+      componentInstance.isDraggable = false;
+      componentFixture.detectChanges();
+      flush();
+      expect(getComputedStyle(modalHeader!).cursor).toEqual('auto');
+    }));
   });
 });
 
@@ -1764,6 +1796,7 @@ class TestWithModalContentComponent {
     <nz-modal
       [(nzVisible)]="isVisible"
       [nzContent]="content"
+      [nzDraggable]="isDraggable"
       nzTitle="Test Title"
       (nzOnCancel)="handleCancel()"
       (nzOnOk)="handleOk()"
@@ -1775,6 +1808,7 @@ class TestWithModalContentComponent {
 })
 class TestModalComponent {
   isVisible = false;
+  isDraggable = false;
   cancelSpy = jasmine.createSpy('cancel spy');
   okSpy = jasmine.createSpy('ok spy');
   @ViewChild(NzModalComponent) nzModalComponent!: NzModalComponent;

components/modal/utils.ts

@@ -33,6 +33,7 @@ export function getConfigFromComponent<T extends ModalOptions>(component: T): Mo
     nzCancelLoading,
     nzKeyboard,
     nzNoAnimation,
+    nzDraggable,
     nzContent,
     nzFooter,
     nzZIndex,
@@ -61,6 +62,7 @@ export function getConfigFromComponent<T extends ModalOptions>(component: T): Mo
     nzCentered,
     nzMask,
     nzMaskClosable,
+    nzDraggable,
     nzClosable,
     nzOkLoading,
     nzOkDisabled,