Struggling to design a versatile Angular Material dialog component for effortless reusability

Question

Struggling to design a versatile Angular Material dialog component for effortless reusability

I am currently working on developing a versatile Angular component that serves as a container for Material Angular dialogs. My aim is to be able to provide a child component or template to the container component and then utilize the MatDialog service to open it.

One approach I have taken is to build a DialogWrapperComponent which takes in a child component using @ContentChild. However, I have faced challenges when attempting to pass this child component to the MatDialog.open() method, resulting in unexpected behavior where the dialog does not open properly.

Here is an illustration of how my DialogWrapperComponent template looks like:

<!-- dialog-wrapper.component.html -->
<ng-container #templateRef>
  <ng-content></ng-content>
</ng-container>

Furthermore, here is a simplified example showcasing how I am utilizing the DialogWrapperComponent in my parent component:

<!-- app.component.html -->
<app-dialog-wrapper>
  <mat-dialog-content>
    <!-- Content goes here -->
  </mat-dialog-content>
</app-dialog-wrapper>

In my parent component, I am integrating the DialogWrapperComponent and attempting to pass the mat-dialog-content as the child component to be shown in the dialog popup. I am uncertain about what steps I may be missing or if there is a more effective method to achieve my objective of crafting a reusable Material Angular dialog wrapper component. Can anyone offer advice or propose a successful solution for creating such a component?

javascript angular typescript angular-material

Answer 1

Answer №1

Indeed, the functionality of MatDialog necessitates providing either a Component or TemplateRef to it. By currently passing a DOM element to create a dialog, you're encountering issues.

To address this, you can establish reusable templates for a MatDialog in the following manner.

Begin by crafting a component that contains the template you wish to reuse; for example, a confirmation dialog:

<!-- app-confirmation-dialog.html -->
<h2 mat-dialog-title>Delete Confirmation</h2>
<mat-dialog-content>
    Are you sure you want to delete this item?
</mat-dialog-content>
<mat-dialog-actions>
    <button mat-button mat-dialog-close>Cancel</button>
    <button mat-button [mat-dialog-close]="true">Delete</button>
</mat-dialog-actions>

Subsequently, create a service that triggers the opening of the ConfirmationDialogComponent whenever an item needs deletion. This service then achieves reusability:

// dialog.service.ts 
import { Injectable } from '@angular/core';
import { MatDialog } from '@angular/material/dialog';
import { ConfirmationDialogComponent } from './dialogs/confirmation-dialog.component';

@Injectable({ providedIn: 'root' })
export class DialogService {
    constructor(private dialog: MatDialog) { }

    openConfirmDialog() {
        return this.dialog.open(ConfirmationDialogComponent, {
            width: '390px',
            panelClass: 'confirm-dialog-container',
            disableClose: true
        });
    }
}

In your component, utilize this service as shown below:

// app.component.ts
import { Component } from '@angular/core';
import { DialogService } from '../services/dialog.service';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
})
export class AppComponent {
    constructor(private dialogService: DialogService) {}

    deleteItem() {
        const dialogRef = this.dialogService.openConfirmDialog();

        dialogRef.afterClosed().subscribe(res => { 
            if (res) {
                // User clicked 'Delete'
            } else {
                // User clicked 'Cancel' or closed the dialog
            }
        });
    }
}

You can replicate this approach for all your dialog templates by adjusting the component passed into the open() method.

Answer 2

Indeed, the functionality of MatDialog necessitates providing either a Component or TemplateRef to it. By currently passing a DOM element to create a dialog, you're encountering issues.

To address this, you can establish reusable templates for a MatDialog in the following manner.

Begin by crafting a component that contains the template you wish to reuse; for example, a confirmation dialog:

<!-- app-confirmation-dialog.html -->
<h2 mat-dialog-title>Delete Confirmation</h2>
<mat-dialog-content>
    Are you sure you want to delete this item?
</mat-dialog-content>
<mat-dialog-actions>
    <button mat-button mat-dialog-close>Cancel</button>
    <button mat-button [mat-dialog-close]="true">Delete</button>
</mat-dialog-actions>

Subsequently, create a service that triggers the opening of the ConfirmationDialogComponent whenever an item needs deletion. This service then achieves reusability:

// dialog.service.ts 
import { Injectable } from '@angular/core';
import { MatDialog } from '@angular/material/dialog';
import { ConfirmationDialogComponent } from './dialogs/confirmation-dialog.component';

@Injectable({ providedIn: 'root' })
export class DialogService {
    constructor(private dialog: MatDialog) { }

    openConfirmDialog() {
        return this.dialog.open(ConfirmationDialogComponent, {
            width: '390px',
            panelClass: 'confirm-dialog-container',
            disableClose: true
        });
    }
}

In your component, utilize this service as shown below:

// app.component.ts
import { Component } from '@angular/core';
import { DialogService } from '../services/dialog.service';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
})
export class AppComponent {
    constructor(private dialogService: DialogService) {}

    deleteItem() {
        const dialogRef = this.dialogService.openConfirmDialog();

        dialogRef.afterClosed().subscribe(res => { 
            if (res) {
                // User clicked 'Delete'
            } else {
                // User clicked 'Cancel' or closed the dialog
            }
        });
    }
}

You can replicate this approach for all your dialog templates by adjusting the component passed into the open() method.

Struggling to design a versatile Angular Material dialog component for effortless reusability

Answer №1

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