Hierarchical Menus (Angular)

You can create Hierarchical Menus with the Menu control also by setting the subItemsPath to a property value that is part of your data source. This sample uses a few Menu controls with hierarchical Menus to demonstrate supported features.

Learn about Input Controls | Hierarchical Menus Documentation | Menu API Reference

This example uses Angular.

app.component.ts
index.html
app.component.html
app.data.ts
styles.css
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import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import * as wijmo from '@mescius/wijmo'; import * as input from '@mescius/wijmo.input'; // import '@angular/compiler'; import { Component, enableProdMode, ElementRef, Inject, ViewChild, OnInit, ɵresolveComponentResources, } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; import { DataService, TMenuTree, TMenuItem } from './app.data'; // @Component({ standalone: true, providers: [DataService], imports: [WjInputModule, FormsModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent implements OnInit { @ViewChild('menuTarget', { static: true }) private _menuTarget: ElementRef; // element used to show menu commands @ViewChild('fileMenu', { static: true }) private _fileMenu: input.Menu; @ViewChild('editMenu', { static: true }) private _editMenu: input.Menu; @ViewChild('formatMenu', { static: true }) private _formatMenu: input.Menu; private _rtl = false; // menuTree: TMenuTree; isAnimated = true; openOnHover = true; // constructor(@Inject(DataService) private dataService: DataService) { this.menuTree = dataService.getMenuTree(); } // get rtl(): boolean { return this._rtl; } set rtl(value: boolean) { let menubar = <HTMLElement>document.querySelector('.menubar'); menubar.setAttribute('dir', (this._rtl = value) ? 'rtl' : 'ltr'); wijmo.Control.refreshAll(menubar); } // ngOnInit() { this._fileMenu.itemClicked.addHandler(this.menuItemClicked.bind(this)); this._editMenu.itemClicked.addHandler(this.menuItemClicked.bind(this)); this._formatMenu.command = this.formatMenuCommand; } // menuItemClicked(menu: input.Menu) { this._menuTarget.nativeElement.innerHTML = `Thank you for clicking <b><i>${menu.text}</i></b>!`; } // formatMenuCommand = { executeCommand: (param: TMenuItem) => { let ts = this._menuTarget.nativeElement.style; let cs = getComputedStyle(this._menuTarget.nativeElement); // switch (param.prop) { case 'face': ts.fontFamily = param.header; break; case 'font': switch (param.header) { case 'Bold': ts.fontWeight = ts.fontWeight ? '' : 'bold'; break; case 'Italic': ts.fontStyle = ts.fontStyle ? '' : 'italic'; break; case 'Underline': ts.textDecoration = ts.textDecoration ? '' : 'underline'; break; case 'Larger': ts.fontSize = parseFloat(cs.fontSize) * 1.2 + 'px'; break; case 'Smaller': ts.fontSize = parseFloat(cs.fontSize) * 0.8 + 'px'; break; } break; case 'color': ts.color = param.header.toLowerCase(); break; case 'background': ts.background = param.header.toLowerCase(); break; } }, canExecuteCommand: (param: TMenuItem) => { let ts = this._menuTarget.nativeElement.style; let cs = getComputedStyle(this._menuTarget.nativeElement); // switch (param.prop) { case 'face': return ts.fontFamily != param.header; case 'font': switch (param.header) { case 'Larger': return parseFloat(cs.fontSize) < 24; case 'Smaller': return parseFloat(cs.fontSize) > 8; } break; case 'color': case 'background': let color = param.header.toLowerCase(); return ts.color != color && ts.backgroundColor != color; } return true; }, }; } // // enableProdMode(); // Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings. ɵresolveComponentResources(fetch).then(() => { // Bootstrap application bootstrapApplication(AppComponent).catch((err) => console.error(err)); });
import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import * as wijmo from '@mescius/wijmo'; import * as input from '@mescius/wijmo.input'; // import '@angular/compiler'; import { Component, enableProdMode, ElementRef, Inject, ViewChild, OnInit, ɵresolveComponentResources, } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; import { DataService, TMenuTree, TMenuItem } from './app.data'; // @Component({ standalone: true, providers: [DataService], imports: [WjInputModule, FormsModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent implements OnInit { @ViewChild('menuTarget', { static: true }) private _menuTarget: ElementRef; // element used to show menu commands @ViewChild('fileMenu', { static: true }) private _fileMenu: input.Menu; @ViewChild('editMenu', { static: true }) private _editMenu: input.Menu; @ViewChild('formatMenu', { static: true }) private _formatMenu: input.Menu; private _rtl = false; // menuTree: TMenuTree; isAnimated = true; openOnHover = true; // constructor(@Inject(DataService) private dataService: DataService) { this.menuTree = dataService.getMenuTree(); } // get rtl(): boolean { return this._rtl; } set rtl(value: boolean) { let menubar = <HTMLElement>document.querySelector('.menubar'); menubar.setAttribute('dir', (this._rtl = value) ? 'rtl' : 'ltr'); wijmo.Control.refreshAll(menubar); } // ngOnInit() { this._fileMenu.itemClicked.addHandler(this.menuItemClicked.bind(this)); this._editMenu.itemClicked.addHandler(this.menuItemClicked.bind(this)); this._formatMenu.command = this.formatMenuCommand; } // menuItemClicked(menu: input.Menu) { this._menuTarget.nativeElement.innerHTML = `Thank you for clicking <b><i>${menu.text}</i></b>!`; } // formatMenuCommand = { executeCommand: (param: TMenuItem) => { let ts = this._menuTarget.nativeElement.style; let cs = getComputedStyle(this._menuTarget.nativeElement); // switch (param.prop) { case 'face': ts.fontFamily = param.header; break; case 'font': switch (param.header) { case 'Bold': ts.fontWeight = ts.fontWeight ? '' : 'bold'; break; case 'Italic': ts.fontStyle = ts.fontStyle ? '' : 'italic'; break; case 'Underline': ts.textDecoration = ts.textDecoration ? '' : 'underline'; break; case 'Larger': ts.fontSize = parseFloat(cs.fontSize) * 1.2 + 'px'; break; case 'Smaller': ts.fontSize = parseFloat(cs.fontSize) * 0.8 + 'px'; break; } break; case 'color': ts.color = param.header.toLowerCase(); break; case 'background': ts.background = param.header.toLowerCase(); break; } }, canExecuteCommand: (param: TMenuItem) => { let ts = this._menuTarget.nativeElement.style; let cs = getComputedStyle(this._menuTarget.nativeElement); // switch (param.prop) { case 'face': return ts.fontFamily != param.header; case 'font': switch (param.header) { case 'Larger': return parseFloat(cs.fontSize) < 24; case 'Smaller': return parseFloat(cs.fontSize) > 8; } break; case 'color': case 'background': let color = param.header.toLowerCase(); return ts.color != color && ts.backgroundColor != color; } return true; }, }; } // // enableProdMode(); // Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings. ɵresolveComponentResources(fetch).then(() => { // Bootstrap application bootstrapApplication(AppComponent).catch((err) => console.error(err)); });
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo Hierarchical Menus</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/fesm2015/zone.min.js"></script> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class="container-fluid"> <div class="menubar"> <wj-menu #fileMenu [header]="'File'" [displayMemberPath]="'header'" [subItemsPath]="'items'" [openOnHover]="openOnHover" [isAnimated]="isAnimated" [itemsSource]="menuTree.fileMenu"> </wj-menu> <wj-menu #editMenu [header]="'Edit'" [displayMemberPath]="'header'" [subItemsPath]="'items'" [openOnHover]="openOnHover" [isAnimated]="isAnimated" [itemsSource]="menuTree.editMenu"> </wj-menu> <wj-menu #formatMenu [header]="'Format'" [displayMemberPath]="'header'" [subItemsPath]="'items'" [openOnHover]="openOnHover" [isAnimated]="isAnimated" [itemsSource]="menuTree.formatMenu"> </wj-menu> </div> <p #menuTarget id="menuTarget"> Wijmo Menus are great! </p> <label> openOnHover <input type="checkbox" [(ngModel)]="openOnHover"> </label> <label> isAnimated <input type="checkbox" [(ngModel)]="isAnimated"> </label> <label> Right-to-Left <input type="checkbox" [(ngModel)]="rtl"> </label> </div>
import { Injectable } from '@angular/core'; // export type TMenuItem = { header: string; prop?: string; items?: TMenuItem[] } // export type TMenuTree = { [key: string]: TMenuItem[] } // @Injectable() export class DataService { getMenuTree() { return <TMenuTree>{ fileMenu: [ { header: 'New', items: [ { header: 'Project' }, { header: 'Site' }, { header: 'File' } ] }, { header: 'Open' }, { header: 'Save' }, { header: 'Save As', items: [ { header: 'Normal' }, { header: 'Compressed' }, { header: 'Encrypted' } ] }, { header: '-' }, { header: 'Exit' } ], editMenu: [ { header: 'Go to', items: [ { header: 'Line' }, { header: 'Symbol' }, { header: 'File', items: [ { header: 'Current Project' }, { header: 'Current Solution' }, { header: 'Select...' } ] } ] }, { header: 'Find and Replace', items: [ { header: 'Quick Find' }, { header: 'Quick Replace' }, { header: 'Find in Files' }, { header: 'Replace in Files', items: [ { header: 'All' }, { header: 'Read/Write Only' } ] } ] }, { header: '-' }, { header: 'Undo' }, { header: 'Redo' } ], formatMenu: [ { header: 'Font', items: [ { header: 'Family', items: [ { header: 'Arial', prop: 'face' }, { header: 'Times', prop: 'face' }, { header: 'Courier', prop: 'face' }, { header: 'Verdana', prop: 'face' }, { header: 'Georgia', prop: 'face' } ] }, { header: 'Bold', prop: 'font' }, { header: 'Italic', prop: 'font' }, { header: 'Underline', prop: 'font' }, { header: '-' }, { header: 'Larger', prop: 'font' }, { header: 'Smaller', prop: 'font' } ] }, { header: 'Color', items: [ { header: 'Black', prop: 'color' }, { header: 'Red', prop: 'color' }, { header: 'Green', prop: 'color' }, { header: 'Blue', prop: 'color' } ] }, { header: 'Background', items: [ { header: 'White', prop: 'background' }, { header: 'Red', prop: 'background' }, { header: 'Green', prop: 'background' }, { header: 'Blue', prop: 'background' } ] } ] }; } }
label { margin-bottom: 15px; margin-right: 25px; } /* element affected by the menu commands */ #menuTarget { font-size: 18pt; text-align: center; padding: 16px; margin: 6px 0; background: #00c1d5; color: black; border: 1px solid rgba(0, 0, 0, .25); } /* bar containing the menus */ .menubar { position: sticky; display: flex; background: #fddfa7; padding: 12px; top: 0; } /* customize wijmo default styles */ .wj-state-selected { color: black; background: orange; } .wj-menu { padding: 6px 14px; border: none; background: transparent; } .wj-menu:hover, .wj-menu.wj-state-focused { background: rgba(0, 0, 0, .05); } .wj-menu .wj-input-group .wj-input-group-btn { /* hide the menu's drop-down buttons */ display: none; } .wj-listbox.wj-menu-items { min-width: 8em; border: none; background: #fddfa7; } .wj-listbox.wj-menu-items .wj-listbox-item:not(.wj-separator) { padding: 6px 12px; }
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'npm:@angular/forms/fesm2022/forms.mjs', }, // packages tells the System loader how to load when no filename and/or no extension packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);