Automatically expand all PrimeNG Accordion panels for easy printing purposes

Question

Automatically expand all PrimeNG Accordion panels for easy printing purposes

I've implemented the PrimeNG library's accordion component in my angular project. You can find more information here.

In my template, I have some custom css styling for printing the page that looks like this:

 @media print {
  .profile-progress-bar, .top-template-header-content, .header.profile-header{
    display: none !important;
  }
  html, body {
    height: auto;
    font-size: 10px !important;
  }

  p-accordionTab > div {
    display: block !important;
    selected: true !important;
  }

}

My goal is to automatically expand all accordionTab elements when the page is being printed. I know each accordionTab has a [selected] property that can be set to "true" to expand it.

The selected property determines the visibility of the content and supports one or two-way binding.

Is there a way to trigger this automatically when the page is being printed using @media print?

Thank you!

css angular typescript media-queries primeng

Answer 1

Answer №1

To achieve this, using a media query is recommended. You can implement a CSS-only solution without making any changes to your TypeScript or HTML files.

Here is the relevant CSS code:

@media print {
  ::ng-deep .ui-accordion-content-wrapper-overflown {
      overflow: visible;
      height: auto !important;
  }
}

View the complete demo on stackblitz here

https://i.sstatic.net/KX3nx.png

Answer 2

To achieve this, using a media query is recommended. You can implement a CSS-only solution without making any changes to your TypeScript or HTML files.

Here is the relevant CSS code:

@media print {
  ::ng-deep .ui-accordion-content-wrapper-overflown {
      overflow: visible;
      height: auto !important;
  }
}

View the complete demo on stackblitz here

https://i.sstatic.net/KX3nx.png

Answer 3

Answer №2

Here's an intriguing approach. If you want to stick with Angular, you have the option to utilize the @angular/cdk/layout library and inject the MediaMatcher. Alternatively, you could achieve a similar outcome using JavaScript directly (refer to this link... the cdk/layout method essentially encapsulates this).

The MediaMatcher service provides the matchMedia method, which allows you to add a listener like so:

import { MediaMatcher } from '@angular/cdk/layout';

constructor(private readonly mediaMatcher: MediaMatcher ) { }

ngOnInit() {
    mediaMatcher.matchMedia('print').addListener(e => e.matches ? 
    console.log('printing!') : null);
}

Simply implement your logic for expanding the accordions where I have included the console.log statement.

Answer 4

Here's an intriguing approach. If you want to stick with Angular, you have the option to utilize the @angular/cdk/layout library and inject the MediaMatcher. Alternatively, you could achieve a similar outcome using JavaScript directly (refer to this link... the cdk/layout method essentially encapsulates this).

The MediaMatcher service provides the matchMedia method, which allows you to add a listener like so:

import { MediaMatcher } from '@angular/cdk/layout';

constructor(private readonly mediaMatcher: MediaMatcher ) { }

ngOnInit() {
    mediaMatcher.matchMedia('print').addListener(e => e.matches ? 
    console.log('printing!') : null);
}

Simply implement your logic for expanding the accordions where I have included the console.log statement.

Automatically expand all PrimeNG Accordion panels for easy printing purposes

Answer №1

Answer №2

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