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docs(material/sidenav): use BreakpointObserver in responsive example #33299

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docs(material/sidenav): use BreakpointObserver in responsive example #33299

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9dcdca6
docs(material/sidenav): use BreakpointObserver in responsive example
takahiro-okada May 21, 2026
d28b4a8
docs(material/sidenav): retrigger CLA check
takahiro-okada May 21, 2026
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1 change: 1 addition & 0 deletions src/components-examples/material/sidenav/BUILD.bazel
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ ng_project(
"//:node_modules/@angular/platform-browser",
"//:node_modules/@angular/router",
"//:node_modules/@types/jasmine",
"//:node_modules/rxjs",
"//src/cdk/layout",
"//src/cdk/testing",
"//src/cdk/testing/testbed",
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31 changes: 11 additions & 20 deletions src/components-examples/material/sidenav/sidenav-responsive/sidenav-responsive-example.ts
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Original file line number Diff line number Diff line change
@@ -1,10 +1,12 @@
import {MediaMatcher} from '@angular/cdk/layout';
import {Component, OnDestroy, inject, signal} from '@angular/core';
import {BreakpointObserver, Breakpoints} from '@angular/cdk/layout';
import {Component, inject} from '@angular/core';
import {toSignal} from '@angular/core/rxjs-interop';
import {MatListModule} from '@angular/material/list';
import {MatSidenavModule} from '@angular/material/sidenav';
import {MatIconModule} from '@angular/material/icon';
import {MatButtonModule} from '@angular/material/button';
import {MatToolbarModule} from '@angular/material/toolbar';
import {map} from 'rxjs/operators';

/** @title Responsive sidenav */
@Component({
Expand All @@ -13,7 +15,7 @@ import {MatToolbarModule} from '@angular/material/toolbar';
styleUrl: 'sidenav-responsive-example.css',
imports: [MatToolbarModule, MatButtonModule, MatIconModule, MatSidenavModule, MatListModule],
})
export class SidenavResponsiveExample implements OnDestroy {
export class SidenavResponsiveExample {
protected readonly fillerNav = Array.from({length: 50}, (_, i) => `Nav Item ${i + 1}`);

protected readonly fillerContent = Array.from(
Expand All @@ -26,23 +28,12 @@ export class SidenavResponsiveExample implements OnDestroy {
cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.`,
);

protected readonly isMobile = signal(true);

private readonly _mobileQuery: MediaQueryList;
private readonly _mobileQueryListener: () => void;

constructor() {
const media = inject(MediaMatcher);

this._mobileQuery = media.matchMedia('(max-width: 600px)');
this.isMobile.set(this._mobileQuery.matches);
this._mobileQueryListener = () => this.isMobile.set(this._mobileQuery.matches);
this._mobileQuery.addEventListener('change', this._mobileQueryListener);
}

ngOnDestroy(): void {
this._mobileQuery.removeEventListener('change', this._mobileQueryListener);
}
protected readonly isMobile = toSignal(
inject(BreakpointObserver)
.observe(Breakpoints.XSmall)
.pipe(map(result => result.matches)),
{initialValue: true},
);

protected readonly shouldRun = /(^|.)(stackblitz|webcontainer).(io|com)$/.test(
window.location.host,
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