feat(window): add window buttons configuration

src/app/playground-components.ts

@@ -1485,6 +1485,12 @@ export const PLAYGROUND_COMPONENTS: ComponentLink[] = [
         component: 'WindowsBackdropComponent',
         name: 'Windows Backdrop',
       },
+      {
+        path: 'window-controls.component',
+        link: '/window/window-controls.component',
+        component: 'WindowControlsComponent',
+        name: 'Window Controls',
+      },
     ],
   },
   {

src/framework/theme/components/window/window.component.scss

@@ -21,7 +21,7 @@
   .buttons {
     width: 9.5rem;
     display: flex;
-    justify-content: space-evenly;
+    justify-content: flex-end;
 
     [nbButton] {
       flex: 0 0 3rem;

src/framework/theme/components/window/window.component.ts

@@ -27,15 +27,24 @@ import { NbWindowRef } from './window-ref';
         <div cdkFocusInitial class="title" tabindex="-1">{{ config.title }}</div>
 
         <div class="buttons">
-          <button nbButton ghost (click)="minimize()">
-            <nb-icon icon="minus-outline" pack="nebular-essentials"></nb-icon>
-          </button>
-          <button nbButton ghost *ngIf="isFullScreen" (click)="maximize()">
-            <nb-icon icon="collapse-outline" pack="nebular-essentials"></nb-icon>
-          </button>
-          <button nbButton ghost *ngIf="minimized || maximized" (click)="maximizeOrFullScreen()">
-            <nb-icon icon="expand-outline" pack="nebular-essentials"></nb-icon>
-          </button>
+          <ng-container *ngIf="showMinimize">
+            <button nbButton ghost (click)="minimize()">
+              <nb-icon icon="minus-outline" pack="nebular-essentials"></nb-icon>
+            </button>
+          </ng-container>
+
+          <ng-container *ngIf="showMaximize">
+            <button nbButton ghost *ngIf="isFullScreen" (click)="maximize()">
+              <nb-icon icon="collapse-outline" pack="nebular-essentials"></nb-icon>
+            </button>
+          </ng-container>
+
+          <ng-container *ngIf="showFullScreen">
+            <button nbButton ghost *ngIf="minimized || maximized" (click)="maximizeOrFullScreen()">
+              <nb-icon icon="expand-outline" pack="nebular-essentials"></nb-icon>
+            </button>
+          </ng-container>
+
           <button nbButton ghost (click)="close()">
             <nb-icon icon="close-outline" pack="nebular-essentials"></nb-icon>
           </button>
@@ -66,6 +75,18 @@ export class NbWindowComponent implements OnInit, AfterViewChecked, OnDestroy {
     return this.windowRef.state === NbWindowState.MINIMIZED;
   }
 
+  get showMinimize(): boolean {
+    return this.config.buttons.minimize;
+  }
+
+  get showMaximize(): boolean {
+    return this.config.buttons.maximize;
+  }
+
+  get showFullScreen(): boolean {
+    return this.config.buttons.fullScreen;
+  }
+
   @ViewChild(NbOverlayContainerComponent) overlayContainer: NbOverlayContainerComponent;
 
   protected focusTrap: NbFocusTrap;
@@ -127,7 +148,7 @@ export class NbWindowComponent implements OnInit, AfterViewChecked, OnDestroy {
   }
 
   maximizeOrFullScreen() {
-    if (this.windowRef.state === NbWindowState.MINIMIZED) {
+    if (this.windowRef.state === NbWindowState.MINIMIZED && this.showMaximize) {
       this.maximize();
     } else {
       this.fullScreen();

src/framework/theme/components/window/window.options.ts

@@ -15,6 +15,18 @@ export interface NbWindowStateChange {
   newState: NbWindowState;
 }
 
+export interface NbWindowControlButtonsConfig {
+  minimize: boolean;
+  maximize: boolean;
+  fullScreen: boolean;
+}
+
+export const NB_WINDOW_DEFAULT_BUTTONS_CONFIG: NbWindowControlButtonsConfig = {
+  minimize: true,
+  maximize: true,
+  fullScreen: true,
+}
+
 /**
  * Window configuration options.
  */
@@ -67,8 +79,18 @@ export class NbWindowConfig {
    */
   viewContainerRef: ViewContainerRef = null;
 
+  /**
+   * Windows control buttons can be hidden by setting according property to false.
+   */
+  buttons: Partial<NbWindowControlButtonsConfig> = {};
+
   constructor(...configs: Partial<NbWindowConfig>[]) {
     Object.assign(this, ...configs);
+    this.applyDefaultButtonConfig();
+  }
+
+  protected applyDefaultButtonConfig() {
+    Object.assign(this, { buttons: { ...NB_WINDOW_DEFAULT_BUTTONS_CONFIG, ...this.buttons } });
   }
 }
 

src/framework/theme/components/window/window.service.spec.ts

@@ -8,6 +8,7 @@ import {
   NbOverlayContainerAdapter,
   NB_DOCUMENT,
   NbThemeModule,
+  NbWindowControlButtonsConfig,
 } from '@nebular/theme';
 
 const WINDOW_CONTENT = 'window content';
@@ -289,4 +290,33 @@ describe('window-service', () => {
     const windowContent = document.getElementById('window-content');
     expect(document.body.contains(windowContent)).toEqual(true);
   }));
+
+  it('should render all control buttons by default', () => {
+    const windowRef = windowService.open(NbTestWindowComponent);
+    windowRef.componentRef.changeDetectorRef.detectChanges();
+    const windowElement: ElementRef<HTMLElement> = windowRef.componentRef.injector.get(ElementRef);
+    expect(windowElement.nativeElement.querySelectorAll('button').length).toBe(3);
+  });
+
+  it('should render only close button', () => {
+    const config: NbWindowControlButtonsConfig = { minimize: false, maximize: false, fullScreen: false };
+    const windowRef = windowService.open(NbTestWindowComponent, { buttons: config});
+    windowRef.componentRef.changeDetectorRef.detectChanges();
+    const windowElement: ElementRef<HTMLElement> = windowRef.componentRef.injector.get(ElementRef);
+    const closeButton = windowElement.nativeElement.querySelectorAll('button')[0];
+    expect(closeButton.getElementsByTagName('nb-icon')[0].getAttribute('icon')).toBe('close-outline');
+  });
+
+  it('should render minimize and close button', () => {
+    const config: NbWindowControlButtonsConfig = { minimize: true, maximize: false, fullScreen: false };
+    const windowRef = windowService.open(NbTestWindowComponent, { buttons: config});
+    windowRef.maximize();
+    windowRef.componentRef.changeDetectorRef.detectChanges();
+    const windowElement: ElementRef<HTMLElement> = windowRef.componentRef.injector.get(ElementRef);
+    const buttons = Array.from(windowElement.nativeElement.querySelectorAll('button'));
+    const icons = buttons.map(e => e.getElementsByTagName('nb-icon')[0].getAttribute('icon'));
+    expect(icons.sort()).toEqual(['minus-outline', 'close-outline'].sort());
+  });
+
+
 });

src/framework/theme/components/window/window.service.ts

@@ -98,6 +98,10 @@ import { NB_DOCUMENT } from '../../theme.options';
  * You can read about all available options on [API tab](docs/components/window/api#nbwindowconfig).
  *
  * @stacked-example(Configuration, window/windows-backdrop.component)
+ *
+ * You can configure which buttons are available in a window via the `buttons` property of the window config.
+ * @stacked-example(Control buttons, window/window-controls.component)
+ *
  */
 @Injectable()
 export class NbWindowService {

src/playground/with-layout/window/window-controls.component.html

@@ -0,0 +1,12 @@
+<nb-card>
+  <nb-card-body>
+
+    <p class="subtitle config-title">Buttons config:</p>
+    <nb-checkbox [(checked)]="minimize">Minimize</nb-checkbox>
+    <nb-checkbox [(checked)]="maximize">Maximize</nb-checkbox>
+    <nb-checkbox [(checked)]="fullScreen">Full Screen</nb-checkbox>
+
+    <button (click)="openWindow()" nbButton class="open-window">Open window</button>
+
+  </nb-card-body>
+</nb-card>

src/playground/with-layout/window/window-controls.component.scss

@@ -0,0 +1,12 @@
+.config-title {
+  margin-top: 0;
+  margin-bottom: 0.25rem;
+}
+
+nb-checkbox {
+  display: block;
+}
+
+.open-window {
+  margin-top: 1rem;
+}

src/playground/with-layout/window/window-controls.component.ts

@@ -0,0 +1,28 @@
+import { ChangeDetectionStrategy, Component } from '@angular/core';
+import { NbWindowControlButtonsConfig, NbWindowService } from '@nebular/theme';
+
+import { FormComponent } from './components/form.component';
+
+@Component({
+  templateUrl: 'window-controls.component.html',
+  styleUrls: ['./window.scss', './window-controls.component.scss'],
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class WindowControlsComponent {
+
+  minimize = true;
+  maximize = true;
+  fullScreen = true;
+
+  constructor(private windowService: NbWindowService) { }
+
+  openWindow() {
+    const buttonsConfig: NbWindowControlButtonsConfig = {
+      minimize: this.minimize,
+      maximize: this.maximize,
+      fullScreen: this.fullScreen,
+    };
+
+    this.windowService.open(FormComponent, { title: `Window`, buttons: buttonsConfig });
+  }
+}

src/playground/with-layout/window/window-routing.module.ts

@@ -9,6 +9,7 @@ import { RouterModule, Route} from '@angular/router';
 import { TemplateWindowComponent } from './template-window.component';
 import { WindowShowcaseComponent } from './window-showcase.component';
 import { WindowsBackdropComponent } from './windows-backdrop.component';
+import { WindowControlsComponent } from './window-controls.component';
 
 const routes: Route[] = [
   {
@@ -23,6 +24,10 @@ const routes: Route[] = [
     path: 'windows-backdrop.component',
     component: WindowsBackdropComponent,
   },
+  {
+    path: 'window-controls.component',
+    component: WindowControlsComponent,
+  },
 ];
 
 @NgModule({

src/playground/with-layout/window/window.module.ts

@@ -5,24 +5,29 @@
  */
 
 import { NgModule } from '@angular/core';
-import { NbButtonModule, NbInputModule, NbWindowModule } from '@nebular/theme';
+import { NbButtonModule, NbCardModule, NbCheckboxModule, NbInputModule, NbWindowModule } from '@nebular/theme';
+
 import { WindowRoutingModule } from './window-routing.module';
 import { TemplateWindowComponent } from './template-window.component';
 import { WindowShowcaseComponent } from './window-showcase.component';
 import { WindowsBackdropComponent } from './windows-backdrop.component';
 import { FormComponent } from './components/form.component';
+import { WindowControlsComponent } from './window-controls.component';
 
 @NgModule({
   declarations: [
     TemplateWindowComponent,
     WindowShowcaseComponent,
     WindowsBackdropComponent,
     FormComponent,
+    WindowControlsComponent,
   ],
   imports: [
     NbWindowModule.forRoot(),
     NbButtonModule,
     NbInputModule,
+    NbCheckboxModule,
+    NbCardModule,
     WindowRoutingModule,
   ],
   entryComponents: [ FormComponent ],