jqwidgets-scripts-custom/demos/Angular/responsivepanel/defaultfunctionality/src/app/app.component.ts

jQWidgets is an advanced jQuery, Angular 7, Vue, React, ASP .NET MVC, Custom Elements and HTML5 UI framework.

import { Component, ViewChild, ElementRef, ViewEncapsulation } from '@angular/core';

import { jqxResponsivePanelComponent } from 'jqwidgets-scripts/jqwidgets-ts/angular_jqxresponsivepanel';
import { jqxPanelComponent } from 'jqwidgets-scripts/jqwidgets-ts/angular_jqxpanel';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css'],
    encapsulation: ViewEncapsulation.None
})

export class AppComponent {
    @ViewChild('myResponsivePanel') myResponsivePanel: jqxResponsivePanelComponent;
    @ViewChild('myPanel') myPanel: jqxPanelComponent; 
    @ViewChild('container') container: ElementRef;
    @ViewChild('toggleResponsivePanel') toggleResponsivePanel: ElementRef;

    flag: boolean = true;
    responsivePanelEventsHandler(event: any): void {
        if (event.args.element)
            return;
        let collapsed = this.myResponsivePanel.isCollapsed();
        let opened = this.myResponsivePanel.isOpened();

        if (this.flag) {
            collapsed = false;
            opened = false;
        }
        this.flag = false;
  
        if (!collapsed && !opened) {
            this.myResponsivePanel.elementRef.nativeElement.firstChild.style.display = 'block';
            this.toggleResponsivePanel.nativeElement.style.display = 'none';
        }   
        else if (collapsed && opened) {
            this.myPanel.width('65%');
        }
        else if (collapsed && !opened) {
            this.myPanel.width('100%');
            this.myResponsivePanel.elementRef.nativeElement.firstChild.style.display = 'none';
            this.toggleResponsivePanel.nativeElement.style.display = 'block';
        }
        else if (!collapsed && opened) {
            this.myPanel.width('65%');
            this.myResponsivePanel.elementRef.nativeElement.firstChild.style.display = 'block';
            this.toggleResponsivePanel.nativeElement.style.display = 'block';
        }    
    }

    resizeSmallBtnOnClick(): void {
        this.myResponsivePanel.elementRef.nativeElement.firstChild.style.display = 'none';
        this.toggleResponsivePanel.nativeElement.style.display = 'block';
        this.container.nativeElement.style.width = '500px';
        this.myPanel.width('100%');
    };

    resizeBigBtnOnClick(): void {
        this.myPanel.width('100%');
        this.myResponsivePanel.elementRef.nativeElement.firstChild.style.display = 'block';
        this.toggleResponsivePanel.nativeElement.style.display = 'none';
        this.container.nativeElement.style.width = '800px';
        this.myPanel.width('65%');
    };
}