2 files changed, 49 insertions, 0 deletions

diff --git a/client/src/app/core/routing/index.ts b/client/src/app/core/routing/index.ts
index 9f0b4eac5..58b83bb2a 100644
--- a/client/src/app/core/routing/index.ts
+++ b/client/src/app/core/routing/index.ts
@@ -2,3 +2,4 @@ export * from './login-guard.service'
 export * from './user-right-guard.service'
 export * from './preload-selected-modules-list'
 export * from './redirect.service'
+export * from './menu-guard.service'
diff --git a/client/src/app/core/routing/menu-guard.service.ts b/client/src/app/core/routing/menu-guard.service.ts
new file mode 100644
index 000000000..907d145fd
--- /dev/null
+++ b/client/src/app/core/routing/menu-guard.service.ts
@@ -0,0 +1,48 @@
+import { Injectable } from '@angular/core'
+import { CanActivate, CanDeactivate } from '@angular/router'
+import { MenuService } from '@app/core/menu'
+import { ScreenService } from '@app/shared/misc/screen.service'
+
+abstract class MenuGuard implements CanActivate, CanDeactivate<any> {
+  display = true
+  canDeactivate = this.canActivate
+
+  constructor (protected menu: MenuService, protected screen: ScreenService, display: boolean) {
+    this.display = display
+  }
+
+  canActivate (): boolean {
+    // small screens already have the site-wide onResize from screenService
+    // > medium screens have enough space to fit the administrative menus
+    if (!this.screen.isInMobileView() && this.screen.isInMediumView()) {
+      this.menu.isMenuDisplayed = this.display
+    }
+    return true
+  }
+}
+
+@Injectable()
+export class OpenMenuGuard extends MenuGuard {
+  constructor (menu: MenuService, screen: ScreenService) { super(menu, screen, true) }
+}
+
+@Injectable()
+export class CloseMenuGuard extends MenuGuard {
+  constructor (menu: MenuService, screen: ScreenService) { super(menu, screen, false) }
+}
+
+@Injectable()
+export class MenuGuards {
+  public static guards = [
+    OpenMenuGuard,
+    CloseMenuGuard
+  ]
+
+  static open () {
+    return OpenMenuGuard
+  }
+
+  static close () {
+    return CloseMenuGuard
+  }
+}