@clr/angular
Version:
Angular components for Clarity
197 lines • 28.1 kB
JavaScript
/*
* Copyright (c) 2016-2025 Broadcom. All Rights Reserved.
* The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
* This software is released under MIT license.
* The full license information can be found in LICENSE in the root directory of this project.
*/
import { DOCUMENT, isPlatformBrowser } from '@angular/common';
import { Directive, HostListener, Inject, Input, PLATFORM_ID, } from '@angular/core';
import { ClarityIcons, timesIcon } from '@cds/core/icon';
import { filter } from 'rxjs/operators';
import { commonStringsDefault } from '../../utils';
import { LARGE_BREAKPOINT } from '../../utils/breakpoints/breakpoints';
import { ClrStandaloneCdkTrapFocus } from '../../utils/focus/focus-trap';
import { ResponsiveNavCodes } from './responsive-nav-codes';
import * as i0 from "@angular/core";
import * as i1 from "../../utils/focus/focus-trap";
import * as i2 from "./providers/responsive-navigation.service";
import * as i3 from "../../utils/focus/focus-trap/standalone-cdk-trap-focus.directive";
const createCloseButton = (document, ariaLabel) => {
ClarityIcons.addIcons(timesIcon);
const closeButton = document.createElement('button');
closeButton.setAttribute('aria-label', ariaLabel);
closeButton.setAttribute('aria-hidden', 'true');
closeButton.innerHTML = `
<cds-icon
inner-offset="1"
shape="times"
size="32"
></cds-icon>
`;
/**
* The button is hidden by default based on our Desktop-first approach.
*/
closeButton.setAttribute('hidden', 'true');
closeButton.className = 'clr-nav-close';
return closeButton;
};
export class ClrNavLevel {
constructor(platformId, cdkTrapFocus, responsiveNavService, elementRef, renderer, injector) {
this.cdkTrapFocus = cdkTrapFocus;
this.responsiveNavService = responsiveNavService;
this.elementRef = elementRef;
this.renderer = renderer;
this._isOpen = false;
if (isPlatformBrowser(platformId)) {
this._document = injector.get(DOCUMENT);
}
this._subscription = responsiveNavService.navControl
.pipe(filter(x => x.navLevel === this.level), filter(({ controlCode }) => (controlCode === ResponsiveNavCodes.NAV_OPEN && !this.isOpen) ||
(controlCode === ResponsiveNavCodes.NAV_CLOSE && this.isOpen)))
.subscribe(({ controlCode }) => {
if (controlCode === ResponsiveNavCodes.NAV_OPEN) {
this.open();
return;
}
this.close();
});
this._subscription.add(responsiveNavService.navControl
.pipe(filter(({ controlCode }) => controlCode === ResponsiveNavCodes.NAV_CLOSE_ALL))
.subscribe(() => this.close()));
}
get level() {
return this._level;
}
// getter to access the responsive navigation codes from the template
get responsiveNavCodes() {
return ResponsiveNavCodes;
}
get isOpen() {
return this._isOpen;
}
ngOnInit() {
this.cdkTrapFocus.enabled = false;
if (!this.closeButtonAriaLabel) {
this.closeButtonAriaLabel =
this._level === ResponsiveNavCodes.NAV_LEVEL_1
? commonStringsDefault.responsiveNavToggleClose
: commonStringsDefault.responsiveNavOverflowClose;
}
if (this.level !== ResponsiveNavCodes.NAV_LEVEL_1 && this.level !== ResponsiveNavCodes.NAV_LEVEL_2) {
console.error('Nav Level can only be 1 or 2');
return;
}
this.responsiveNavService.registerNav(this.level);
this.addNavClass(this.level);
}
ngAfterViewInit() {
const closeButton = createCloseButton(this._document, this.closeButtonAriaLabel);
this.renderer.listen(closeButton, 'click', this.close.bind(this));
this.renderer.insertBefore(this.elementRef.nativeElement, closeButton, this.elementRef.nativeElement.firstChild); // Adding the button at the top of the nav
if (this._document.body.clientWidth < LARGE_BREAKPOINT) {
/**
* Close if the document body is smaller than the large breakpoint for example:
* - Refreshing the page
* - Browser window size is changed when opening the applicaiton
* - Browser zoom is turned on and zoomed to a size that makes the document smaller than the large breakpoint
*/
this.close();
}
}
ngOnDestroy() {
this.responsiveNavService.unregisterNav(this.level);
this._subscription.unsubscribe();
}
onResize(event) {
const target = event.target;
if (target.innerWidth < LARGE_BREAKPOINT && this.isOpen) {
this.close();
return;
}
this.showNavigation();
}
// TODO: Figure out whats the best way to do this. Possible methods
// 1. HostListener (current solution)
// 2. Directives on the .nav-link class. We discussed on moving away from class selectors but I forget the reason
// why
onMouseClick(target) {
let current = target; // Get the element in the DOM on which the mouse was clicked
const navHost = this.elementRef.nativeElement; // Get the current nav native HTML element
// Start checking if current and navHost are equal.
// If not traverse to the parentNode and check again.
while (current) {
if (current === navHost) {
return;
}
else if (current.classList.contains('nav-link') && this._document.body.clientWidth < LARGE_BREAKPOINT) {
this.close();
return;
}
current = current.parentNode;
}
}
addNavClass(level) {
const navHostClassList = this.elementRef.nativeElement.classList;
if (level === ResponsiveNavCodes.NAV_LEVEL_1) {
navHostClassList.add(ResponsiveNavCodes.NAV_CLASS_LEVEL_1);
}
else if (level === ResponsiveNavCodes.NAV_LEVEL_2) {
navHostClassList.add(ResponsiveNavCodes.NAV_CLASS_LEVEL_2);
}
}
open() {
this._isOpen = true;
this.showNavigation();
this.cdkTrapFocus.enabled = true;
this.showCloseButton();
this.responsiveNavService.sendControlMessage(ResponsiveNavCodes.NAV_OPEN, this.level);
}
close() {
this._isOpen = false;
this.hideNavigation();
this.cdkTrapFocus.enabled = false;
this.hideCloseButton();
this.responsiveNavService.sendControlMessage(ResponsiveNavCodes.NAV_CLOSE, this.level);
}
hideNavigation() {
this.renderer.setAttribute(this.elementRef.nativeElement, 'aria-hidden', 'true');
this.renderer.setAttribute(this.elementRef.nativeElement, 'hidden', 'true');
}
showNavigation() {
this.renderer.setAttribute(this.elementRef.nativeElement, 'aria-hidden', 'false');
this.renderer.removeAttribute(this.elementRef.nativeElement, 'hidden');
}
hideCloseButton() {
this.renderer.setAttribute(this.elementRef.nativeElement, 'aria-hidden', 'true');
this.renderer.setAttribute(this.elementRef.nativeElement.querySelector('.clr-nav-close'), 'hidden', 'true');
}
showCloseButton() {
this.renderer.setAttribute(this.elementRef.nativeElement.querySelector('.clr-nav-close'), 'aria-hidden', 'false');
this.renderer.removeAttribute(this.elementRef.nativeElement.querySelector('.clr-nav-close'), 'hidden');
}
}
ClrNavLevel.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: ClrNavLevel, deps: [{ token: PLATFORM_ID }, { token: i1.ClrStandaloneCdkTrapFocus }, { token: i2.ResponsiveNavigationService }, { token: i0.ElementRef }, { token: i0.Renderer2 }, { token: i0.Injector }], target: i0.ɵɵFactoryTarget.Directive });
ClrNavLevel.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "15.2.2", type: ClrNavLevel, selector: "[clr-nav-level]", inputs: { _level: ["clr-nav-level", "_level"], closeButtonAriaLabel: ["closeAriaLabel", "closeButtonAriaLabel"] }, host: { listeners: { "window:resize": "onResize($event)", "click": "onMouseClick($event.target)" } }, hostDirectives: [{ directive: i3.ClrStandaloneCdkTrapFocus }], ngImport: i0 });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.2", ngImport: i0, type: ClrNavLevel, decorators: [{
type: Directive,
args: [{
selector: '[clr-nav-level]',
hostDirectives: [ClrStandaloneCdkTrapFocus],
}]
}], ctorParameters: function () { return [{ type: undefined, decorators: [{
type: Inject,
args: [PLATFORM_ID]
}] }, { type: i1.ClrStandaloneCdkTrapFocus }, { type: i2.ResponsiveNavigationService }, { type: i0.ElementRef }, { type: i0.Renderer2 }, { type: i0.Injector }]; }, propDecorators: { _level: [{
type: Input,
args: ['clr-nav-level']
}], closeButtonAriaLabel: [{
type: Input,
args: ['closeAriaLabel']
}], onResize: [{
type: HostListener,
args: ['window:resize', ['$event']]
}], onMouseClick: [{
type: HostListener,
args: ['click', ['$event.target']]
}] } });
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* Copyright (c) 2016-2025 Broadcom. All Rights Reserved.\n * The term \"Broadcom\" refers to Broadcom Inc. and/or its subsidiaries.\n * This software is released under MIT license.\n * The full license information can be found in LICENSE in the root directory of this project.\n */\n\nimport { DOCUMENT, isPlatformBrowser } from '@angular/common';\nimport {\n  Directive,\n  ElementRef,\n  HostListener,\n  Inject,\n  Injector,\n  Input,\n  OnInit,\n  PLATFORM_ID,\n  Renderer2,\n} from '@angular/core';\nimport { ClarityIcons, timesIcon } from '@cds/core/icon';\nimport { Subscription } from 'rxjs';\nimport { filter } from 'rxjs/operators';\n\nimport { commonStringsDefault } from '../../utils';\nimport { LARGE_BREAKPOINT } from '../../utils/breakpoints/breakpoints';\nimport { ClrStandaloneCdkTrapFocus } from '../../utils/focus/focus-trap';\nimport { ResponsiveNavigationService } from './providers/responsive-navigation.service';\nimport { ResponsiveNavCodes } from './responsive-nav-codes';\n\nconst createCloseButton = (document: Document, ariaLabel: string) => {\n  ClarityIcons.addIcons(timesIcon);\n\n  const closeButton = document.createElement('button');\n  closeButton.setAttribute('aria-label', ariaLabel);\n  closeButton.setAttribute('aria-hidden', 'true');\n  closeButton.innerHTML = `\n    <cds-icon\n      inner-offset=\"1\"\n      shape=\"times\"\n      size=\"32\"\n    ></cds-icon>\n  `;\n  /**\n   * The button is hidden by default based on our Desktop-first approach.\n   */\n  closeButton.setAttribute('hidden', 'true');\n  closeButton.className = 'clr-nav-close';\n  return closeButton;\n};\n\n@Directive({\n  selector: '[clr-nav-level]',\n  hostDirectives: [ClrStandaloneCdkTrapFocus],\n})\nexport class ClrNavLevel implements OnInit {\n  @Input('clr-nav-level') _level: number;\n  @Input('closeAriaLabel') closeButtonAriaLabel: string;\n\n  private _isOpen = false;\n  private _document: Document;\n  private _subscription: Subscription;\n\n  constructor(\n    @Inject(PLATFORM_ID) platformId: any,\n    private cdkTrapFocus: ClrStandaloneCdkTrapFocus,\n    private responsiveNavService: ResponsiveNavigationService,\n    private elementRef: ElementRef<HTMLElement>,\n    private renderer: Renderer2,\n    injector: Injector\n  ) {\n    if (isPlatformBrowser(platformId)) {\n      this._document = injector.get(DOCUMENT);\n    }\n\n    this._subscription = responsiveNavService.navControl\n      .pipe(\n        filter(x => x.navLevel === this.level),\n        filter(\n          ({ controlCode }) =>\n            (controlCode === ResponsiveNavCodes.NAV_OPEN && !this.isOpen) ||\n            (controlCode === ResponsiveNavCodes.NAV_CLOSE && this.isOpen)\n        )\n      )\n      .subscribe(({ controlCode }) => {\n        if (controlCode === ResponsiveNavCodes.NAV_OPEN) {\n          this.open();\n          return;\n        }\n\n        this.close();\n      });\n\n    this._subscription.add(\n      responsiveNavService.navControl\n        .pipe(filter(({ controlCode }) => controlCode === ResponsiveNavCodes.NAV_CLOSE_ALL))\n        .subscribe(() => this.close())\n    );\n  }\n\n  get level(): number {\n    return this._level;\n  }\n\n  // getter to access the responsive navigation codes from the template\n  get responsiveNavCodes(): ResponsiveNavCodes {\n    return ResponsiveNavCodes;\n  }\n\n  get isOpen(): boolean {\n    return this._isOpen;\n  }\n\n  ngOnInit() {\n    this.cdkTrapFocus.enabled = false;\n\n    if (!this.closeButtonAriaLabel) {\n      this.closeButtonAriaLabel =\n        this._level === ResponsiveNavCodes.NAV_LEVEL_1\n          ? commonStringsDefault.responsiveNavToggleClose\n          : commonStringsDefault.responsiveNavOverflowClose;\n    }\n\n    if (this.level !== ResponsiveNavCodes.NAV_LEVEL_1 && this.level !== ResponsiveNavCodes.NAV_LEVEL_2) {\n      console.error('Nav Level can only be 1 or 2');\n      return;\n    }\n    this.responsiveNavService.registerNav(this.level);\n    this.addNavClass(this.level);\n  }\n\n  ngAfterViewInit() {\n    const closeButton = createCloseButton(this._document, this.closeButtonAriaLabel);\n    this.renderer.listen(closeButton, 'click', this.close.bind(this));\n    this.renderer.insertBefore(this.elementRef.nativeElement, closeButton, this.elementRef.nativeElement.firstChild); // Adding the button at the top of the nav\n\n    if (this._document.body.clientWidth < LARGE_BREAKPOINT) {\n      /**\n       * Close if the document body is smaller than the large breakpoint for example:\n       * - Refreshing the page\n       * - Browser window size is changed when opening the applicaiton\n       * - Browser zoom is turned on and zoomed to a size that makes the document smaller than the large breakpoint\n       */\n      this.close();\n    }\n  }\n\n  ngOnDestroy() {\n    this.responsiveNavService.unregisterNav(this.level);\n    this._subscription.unsubscribe();\n  }\n\n  @HostListener('window:resize', ['$event'])\n  onResize(event: Event) {\n    const target = event.target as Window;\n\n    if (target.innerWidth < LARGE_BREAKPOINT && this.isOpen) {\n      this.close();\n      return;\n    }\n\n    this.showNavigation();\n  }\n\n  // TODO: Figure out whats the best way to do this. Possible methods\n  // 1. HostListener (current solution)\n  // 2. Directives on the .nav-link class. We discussed on moving away from class selectors but I forget the reason\n  // why\n  @HostListener('click', ['$event.target'])\n  onMouseClick(target: any) {\n    let current: any = target; // Get the element in the DOM on which the mouse was clicked\n    const navHost: any = this.elementRef.nativeElement; // Get the current nav native HTML element\n\n    // Start checking if current and navHost are equal.\n    // If not traverse to the parentNode and check again.\n    while (current) {\n      if (current === navHost) {\n        return;\n      } else if (current.classList.contains('nav-link') && this._document.body.clientWidth < LARGE_BREAKPOINT) {\n        this.close();\n        return;\n      }\n      current = current.parentNode;\n    }\n  }\n\n  addNavClass(level: number) {\n    const navHostClassList = this.elementRef.nativeElement.classList;\n    if (level === ResponsiveNavCodes.NAV_LEVEL_1) {\n      navHostClassList.add(ResponsiveNavCodes.NAV_CLASS_LEVEL_1);\n    } else if (level === ResponsiveNavCodes.NAV_LEVEL_2) {\n      navHostClassList.add(ResponsiveNavCodes.NAV_CLASS_LEVEL_2);\n    }\n  }\n\n  open(): void {\n    this._isOpen = true;\n    this.showNavigation();\n    this.cdkTrapFocus.enabled = true;\n    this.showCloseButton();\n    this.responsiveNavService.sendControlMessage(ResponsiveNavCodes.NAV_OPEN, this.level);\n  }\n\n  close(): void {\n    this._isOpen = false;\n    this.hideNavigation();\n    this.cdkTrapFocus.enabled = false;\n    this.hideCloseButton();\n    this.responsiveNavService.sendControlMessage(ResponsiveNavCodes.NAV_CLOSE, this.level);\n  }\n\n  protected hideNavigation() {\n    this.renderer.setAttribute(this.elementRef.nativeElement, 'aria-hidden', 'true');\n    this.renderer.setAttribute(this.elementRef.nativeElement, 'hidden', 'true');\n  }\n\n  protected showNavigation() {\n    this.renderer.setAttribute(this.elementRef.nativeElement, 'aria-hidden', 'false');\n    this.renderer.removeAttribute(this.elementRef.nativeElement, 'hidden');\n  }\n\n  protected hideCloseButton() {\n    this.renderer.setAttribute(this.elementRef.nativeElement, 'aria-hidden', 'true');\n    this.renderer.setAttribute(this.elementRef.nativeElement.querySelector('.clr-nav-close'), 'hidden', 'true');\n  }\n\n  protected showCloseButton() {\n    this.renderer.setAttribute(this.elementRef.nativeElement.querySelector('.clr-nav-close'), 'aria-hidden', 'false');\n    this.renderer.removeAttribute(this.elementRef.nativeElement.querySelector('.clr-nav-close'), 'hidden');\n  }\n}\n"]}