如何在不单击外部背景的情况下关闭垫对话框? [英] How to close a mat dialog without a backdrop on clicking outside?

问题描述

如何在此 stackblitz示例 中关闭对话框(最小的，可复制的示例.)，方法是在外部单击?

How Can I close the dialog in this stackblitz example (Minimal, Reproducible Example.) by clicking outside ?

如果我删除属性 hasBackdrop:false ->

This works fine if I remove the property hasBackdrop: false -> Working Stackblitz Example

推荐答案

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click事件.这是一个StackBlitz示例根据您的:

In a nutshell, you need to do your own click handling - listen to clicks and determine whether or not they are outside the dialog. This allows you to not trap the click event the way that the backdrop does. Here's a StackBlitz example based on yours:

@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();
  }
}

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