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1 | import { fromEvent } from 'rxjs' | |
2 | import { debounceTime } from 'rxjs/operators' | |
3 | import { Injectable } from '@angular/core' | |
4 | import { ScreenService } from '../wrappers' | |
5 | ||
6 | @Injectable() | |
7 | export class MenuService { | |
8 | isMenuDisplayed = true | |
9 | isMenuChangedByUser = false | |
10 | menuWidth = 240 // should be kept equal to $menu-width | |
11 | ||
12 | constructor ( | |
13 | private screenService: ScreenService | |
14 | ) { | |
15 | // Do not display menu on small screens | |
16 | if (this.screenService.isInSmallView()) { | |
17 | this.isMenuDisplayed = false | |
18 | } | |
19 | ||
20 | fromEvent(window, 'resize') | |
21 | .pipe(debounceTime(200)) | |
22 | .subscribe(() => this.onResize()) | |
23 | } | |
24 | ||
25 | toggleMenu () { | |
26 | this.isMenuDisplayed = !this.isMenuDisplayed | |
27 | this.isMenuChangedByUser = true | |
28 | } | |
29 | ||
30 | onResize () { | |
31 | this.isMenuDisplayed = window.innerWidth >= 800 && !this.isMenuChangedByUser | |
32 | } | |
33 | } |