client/src/app/core/routing/menu-guard.service.ts

   1 import { Injectable } from '@angular/core'
   2 import { CanActivate, CanDeactivate } from '@angular/router'
   3 import { MenuService } from '../menu'
   4 import { ScreenService } from '../wrappers'
   5
   6 abstract class MenuGuard implements CanActivate, CanDeactivate<any> {
   7   display = true
   8   canDeactivate = this.canActivate
   9
  10   constructor (protected menu: MenuService, protected screen: ScreenService, display: boolean) {
  11     this.display = display
  12   }
  13
  14   canActivate (): boolean {
  15     // small screens already have the site-wide onResize from screenService
  16     // > medium screens have enough space to fit the administrative menus
  17     if (!this.screen.isInMobileView() && this.screen.isInMediumView()) {
  18       this.menu.setMenuDisplay(this.display)
  19     }
  20     return true
  21   }
  22 }
  23
  24 @Injectable()
  25 export class OpenMenuGuard extends MenuGuard {
  26   constructor (menu: MenuService, screen: ScreenService) { super(menu, screen, true) }
  27 }
  28
  29 @Injectable()
  30 export class OpenMenuAlwaysGuard extends MenuGuard {
  31   constructor (menu: MenuService, screen: ScreenService) { super(menu, screen, true) }
  32
  33   canActivate (): boolean {
  34     this.menu.setMenuDisplay(this.display)
  35     return true
  36   }
  37 }
  38
  39 @Injectable()
  40 export class CloseMenuGuard extends MenuGuard {
  41   constructor (menu: MenuService, screen: ScreenService) { super(menu, screen, false) }
  42 }
  43
  44 @Injectable()
  45 export class CloseMenuAlwaysGuard extends MenuGuard {
  46   constructor (menu: MenuService, screen: ScreenService) { super(menu, screen, false) }
  47
  48   canActivate (): boolean {
  49     this.menu.setMenuDisplay(this.display)
  50     return true
  51   }
  52 }
  53
  54 @Injectable()
  55 export class MenuGuards {
  56   public static guards = [
  57     OpenMenuGuard,
  58     OpenMenuAlwaysGuard,
  59     CloseMenuGuard,
  60     CloseMenuAlwaysGuard
  61   ]
  62
  63   static open (always?: boolean) {
  64     return always
  65       ? OpenMenuAlwaysGuard
  66       : OpenMenuGuard
  67   }
  68
  69   static close (always?: boolean) {
  70     return always
  71       ? CloseMenuAlwaysGuard
  72       : CloseMenuGuard
  73   }
  74 }