Searching within an Angular component's DOM using JQuery is restricted

Want to incorporate JQuery for DOM manipulation within Angular components, but only want it to target the specific markup within each component.

Trying to implement Shadow DOM with this component:

import { Component, OnInit, ViewEncapsulation } from '@angular/core';
import * as $ from 'jquery';

@Component({
  selector: 'app-layout',
  templateUrl: './layout.component.html',
  styleUrls: ['./layout.component.less'],
  encapsulation: ViewEncapsulation.Native
})
export class LayoutComponent implements OnInit {

  constructor() { }

  ngOnInit() {
  }

  toggleSidebar(): void {
    $('.main-sidebar').toggleClass('active');
    $('.content-wrapper').toggleClass('expanded');
  }
}

HTML code:

<div class="wrapper">

  <header class="main-header">
    <a href="#" class="logo">Logo</a>
    <nav class="navbar">
        <button type="button" id="sidebar-collapse" class="btn btn-info navbar-btn" (click)='toggleSidebar()'>
            <i class="fa fa-align-left"></i>
        </button>          
    </nav>
  </header>

  <aside class="main-sidebar">
    <section class="sidebar">
      Sidebar
    </section>
  </aside>

  <div class="content-wrapper">
    <section class="content">
      Content
    </section>
  </div>

</div>

If I remove the encapsulation, JQuery works fine. However, when I keep it, JQuery is unable to locate the elements being searched. Any suggestions on how to make JQuery identify those elements without using Shadow DOM?

Answer №1

What is the best approach for menu toggling in Angular applications?

Instead of using jQuery for menu toggling, it is recommended to utilize Angular's capabilities. You can achieve this functionality with host binding.

HTML

<nav class="navbar">
   <button type="button" id="sidebar-collapse" class="btn btn-info navbar-btn" 
    (click)='toggleSidebar()'>
      <i class="fa fa-align-left"></i>
   </button> 
</nav>

<aside class="main-sidebar" [ngClass]="{'menu_open': menuOpen}">
   <section class="sidebar">
     Sidebar
   </section>
 </aside> 

Component

import { Component, HostBinding, OnInit } from '@angular/core';

export class LayoutComponent implements OnInit {
   // set it closed by default
   @HostBinding('class.menu_open') public menuOpen = false;
   ....

   toggleSidebar() {
      this.menuOpen = !this.menuOpen;
   }
   ...
}

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