Question

如何在此 stackblitz example （最小的可复制示例。）中单击对话框，以关闭对话框？

如果我删除属性hasBackdrop: false-> Working Stackblitz Example

，此方法就很好

Answer 1

有许多方法可以实现这一目标。一种可能是监听窗口点击。 Stackblitz

export class DialogOverviewExampleDialog {

  private inited;

  constructor(
    public dialogRef: MatDialogRef<DialogOverviewExampleDialog>,
    @Inject(MAT_DIALOG_DATA) public data: DialogData) { }

  ngOnInit() {
      this.dialogRef.afterOpened().subscribe(() => {
        this.inited = true;
      })
  }

  @HostListener('window:click')
  onNoClick(): void {
    if (this.inited) {
        this.dialogRef.close();
    }
  }

}

但是我建议您编辑背景的css，因此它仍然不可见，但功能仍然存在。

.cdk-overlay-dark-backdrop {
    background: transparent;
}

Answer 2

创建Angular Material Dialog并在对话框外单击（在创建没有背景的外观时）时关闭的标准方法是使用内置库CSS类cdk-overlay-transparent-backdrop并应用使用MatDialogConfig属性backdropClass。

openDialog方法为：

openDialog(): void {
  const dialogRef = this.dialog.open(DialogOverviewExampleDialog, {
    backdropClass: 'cdk-overlay-transparent-backdrop',
    hasBackdrop: true,
    width: '250px'
  });
}

请参见Stackblitz Example

Answer 3

简而言之，您需要执行自己的单击处理-监听单击并确定它们是否在对话框之外。这使您可以不像背景那样捕获单击事件。 Here's a StackBlitz example根据您的情况：

@Component({
  selector: 'dialog-overview-example',
  templateUrl: 'dialog-overview-example.html',
  styleUrls: ['dialog-overview-example.css'],
})
export class DialogOverviewExample {

  @HostListener('document:click', ['$event'])
  clickout(event) {
    if (this.clickoutHandler) {
      this.clickoutHandler(event);
    }
  }

  animal: string;
  name: string;

  clickoutHandler: Function;

  dialogRef: MatDialogRef<DialogOverviewExampleDialog>;

  constructor(public dialog: MatDialog) {}

  openDialog(): void {
    setTimeout(() => {
      this.dialogRef = this.dialog.open(DialogOverviewExampleDialog, {
        width: '250px',
        hasBackdrop: false
      });

      this.dialogRef.afterOpened().subscribe(() => {
        this.clickoutHandler = this.closeDialogFromClickout;
      });

      this.dialogRef.afterClosed().subscribe(() => {
        this.clickoutHandler = null;
      });
    });
  }

  closeDialogFromClickout(event: MouseEvent) {
    const matDialogContainerEl = this.dialogRef.componentInstance.hostElement.nativeElement.parentElement;
    const rect = matDialogContainerEl.getBoundingClientRect()
    if(event.clientX <= rect.left || event.clientX >= rect.right || 
        event.clientY <= rect.top || event.clientY >= rect.bottom) {
      this.dialogRef.close();
    }
  }
}

@Component({
  selector: 'dialog-overview-example-dialog',
  templateUrl: 'dialog-overview-example-dialog.html',
})
export class DialogOverviewExampleDialog {

  constructor(
    public hostElement: ElementRef,
    public dialogRef: MatDialogRef<DialogOverviewExampleDialog>,
    @Inject(MAT_DIALOG_DATA) public data: DialogData) {
  }

  onNoClick(): void {
    this.dialogRef.close();
  }
}

如何在不单击外部背景的情况下关闭垫对话框？

3 个答案: