Make use of the configured shortcuts in OpenLP.

package.json

@@ -24,44 +24,44 @@
     "supportedBrowsers": "(echo module.exports = && browserslist-useragent-regexp --allowHigherVersions) > src/assets/supportedBrowsers.js"
   },
   "dependencies": {
-    "@angular/animations": "^17.3.1",
+    "@angular/animations": "^17.3.2",
-    "@angular/cdk": "^17.3.1",
+    "@angular/cdk": "^17.3.2",
-    "@angular/common": "^17.3.1",
+    "@angular/common": "^17.3.2",
-    "@angular/compiler": "^17.3.1",
+    "@angular/compiler": "^17.3.2",
-    "@angular/core": "^17.3.1",
+    "@angular/core": "^17.3.2",
-    "@angular/forms": "^17.3.1",
+    "@angular/forms": "^17.3.2",
-    "@angular/material": "^17.3.1",
+    "@angular/material": "^17.3.2",
-    "@angular/platform-browser": "^17.3.1",
+    "@angular/platform-browser": "^17.3.2",
-    "@angular/platform-browser-dynamic": "^17.3.1",
+    "@angular/platform-browser-dynamic": "^17.3.2",
-    "@angular/router": "^17.3.1",
+    "@angular/router": "^17.3.2",
-    "@fontsource/roboto": "^5.0.8",
+    "@fontsource/roboto": "^5.0.12",
-    "core-js": "^3.35.1",
+    "core-js": "^3.36.1",
     "hammerjs": "^2.0.8",
     "material-icons": "^1.13.12",
     "rxjs": "^7.8.1",
-    "zone.js": "^0.14.3"
+    "zone.js": "^0.14.4"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^17.3.1",
+    "@angular-devkit/build-angular": "^17.3.2",
     "@angular-eslint/builder": "^17.3.0",
     "@angular-eslint/eslint-plugin": "^17.3.0",
     "@angular-eslint/eslint-plugin-template": "^17.3.0",
     "@angular-eslint/schematics": "^17.3.0",
     "@angular-eslint/template-parser": "^17.3.0",
-    "@angular/cli": "~17.3.1",
+    "@angular/cli": "~17.3.2",
-    "@angular/compiler-cli": "^17.3.1",
+    "@angular/compiler-cli": "^17.3.2",
-    "@angular/language-service": "^17.3.1",
+    "@angular/language-service": "^17.3.2",
     "@chiragrupani/karma-chromium-edge-launcher": "^2.3.1",
     "@types/jasmine": "~5.1.4",
     "@types/jasminewd2": "~2.0.13",
-    "@types/node": "~20.11.17",
+    "@types/node": "~20.12.2",
-    "@typescript-eslint/eslint-plugin": "6.21.0",
+    "@typescript-eslint/eslint-plugin": "7.4.0",
-    "@typescript-eslint/parser": "6.21.0",
+    "@typescript-eslint/parser": "7.4.0",
     "browserslist": "^4.23.0",
     "browserslist-useragent-regexp": "^4.1.1",
-    "eslint": "^8.56.0",
+    "eslint": "^8.57.0",
     "eslint-plugin-import": "~2.29.1",
-    "eslint-plugin-jsdoc": "~48.0.6",
+    "eslint-plugin-jsdoc": "~48.2.2",
     "eslint-plugin-prefer-arrow": "~1.2.3",
     "jasmine-core": "~5.1.2",
     "jasmine-spec-reporter": "~7.0.0",
@@ -71,7 +71,7 @@
     "karma-jasmine": "~5.1.0",
     "karma-jasmine-html-reporter": "^2.1.0",
     "ts-node": "~10.9.2",
-    "typescript": "~5.3.3"
+    "typescript": "~5.4.3"
   },
   "private": true
 }

src/app/app.component.ts

@@ -10,7 +10,8 @@ import { LoginComponent } from './components/login/login.component';
 import { fromEvent } from 'rxjs';
 import { debounceTime } from 'rxjs/operators';
 import { DisplayModeSelectorComponent } from './components/display-mode-selector/display-mode-selector.component';
-import { HotKeysService } from './hotkeys.service';
+import { Shortcuts, ShortcutsService } from './shortcuts.service';
+import { ShortcutPipe } from './components/shortcuts/shortcut.pipe';
 import { SettingsService } from './settings.service';
 import * as supportedBrowsers from '../assets/supportedBrowsers';
 
@@ -29,14 +30,16 @@ export class AppComponent implements OnInit {
   appVersion = '0.0';
   webSocketOpen = false;
   fastSwitching = false;
+  useShortcutsFromOpenlp = false;
 
   constructor(private pageTitleService: PageTitleService, private openlpService: OpenLPService,
               private dialog: MatDialog, private bottomSheet: MatBottomSheet, private windowRef: WindowRef,
-              private hotKeysService: HotKeysService, private settingsService: SettingsService) {
+              private shortcutsService: ShortcutsService, private settingsService: SettingsService) {
-    pageTitleService.pageTitleChanged$.subscribe(pageTitle => this.pageTitle = pageTitle);
+    this.pageTitleService.pageTitleChanged$.subscribe(pageTitle => this.pageTitle = pageTitle);
-    openlpService.stateChanged$.subscribe(item => this.state = item);
+    this.openlpService.stateChanged$.subscribe(item => this.state = item);
-    openlpService.webSocketStateChanged$.subscribe(status => this.webSocketOpen = status === WebSocketStatus.Open);
+    this.openlpService.webSocketStateChanged$.subscribe(status => this.webSocketOpen = status === WebSocketStatus.Open);
-    this.appVersion = windowRef.nativeWindow.appVersion || '0.0';
+    this.shortcutsService.shortcutsChanged$.subscribe(shortcuts => this.addShortcuts(shortcuts));
+    this.appVersion = this.windowRef.nativeWindow.appVersion || '0.0';
     this.webSocketOpen = openlpService.webSocketStatus === WebSocketStatus.Open;
     // Try to force websocket reconnection as user is now focused on window and will try to interact soon
     // Adding a debounce to avoid event flooding
@@ -49,47 +52,60 @@ export class AppComponent implements OnInit {
     if (!(supportedBrowsers.test(navigator.userAgent))) {
       window.location.replace("/assets/notsupported.html");
     }
-    this.openlpService.retrieveSystemInformation().subscribe(res => this.showLogin = res.login_required);
+    this.openlpService.retrieveSystemInformation().subscribe(res => {
-    this.addHotKeys();
+        this.showLogin = res.login_required
+        this.useShortcutsFromOpenlp = this.openlpService.assertApiVersionMinimum(2, 5)
+        this.shortcutsService.getShortcuts(this.useShortcutsFromOpenlp);
+      }
+    );
     this.fastSwitching = this.settingsService.get('fastSwitching');
     this.settingsService.onPropertyChanged('fastSwitching').subscribe(value => this.fastSwitching = value);
   }
 
-  addHotKeys(): void {
+  addShortcuts(shortcuts: Shortcuts): void {
-    this.hotKeysService.addShortcut({ keys: 'ArrowUp' }).subscribe(() =>
+    const shortcutPipe = new ShortcutPipe();
-      this.previousSlide()
+    shortcuts.previousSlide.forEach((key) => {
-    );
+      this.shortcutsService.addShortcut({ keys: shortcutPipe.transform(key) }).subscribe(() =>
-    this.hotKeysService.addShortcut({ keys: 'ArrowDown' }).subscribe(() =>
+        this.previousSlide()
-      this.nextSlide()
+      )
-    );
+    });
-    this.hotKeysService.addShortcut({ keys: 'PageUp' }).subscribe(() =>
+    shortcuts.nextSlide.forEach((key) => {
-      this.previousSlide()
+      this.shortcutsService.addShortcut({ keys: shortcutPipe.transform(key) }).subscribe(() =>
-    );
+        this.nextSlide()
-    this.hotKeysService.addShortcut({ keys: 'PageDown' }).subscribe(() =>
+      )
-      this.nextSlide()
+    });
-    );
+    shortcuts.previousItem.forEach((key) => {
-    this.hotKeysService.addShortcut({ keys: 'ArrowLeft' }).subscribe(() =>
+      this.shortcutsService.addShortcut({ keys: shortcutPipe.transform(key) }).subscribe(() =>
-      this.previousItem()
+        this.previousItem()
-    );
+      )
-    this.hotKeysService.addShortcut({ keys: 'ArrowRight' }).subscribe(() =>
+    });
-      this.nextItem()
+    shortcuts.nextItem.forEach((key) => {
-    );
+      this.shortcutsService.addShortcut({ keys: shortcutPipe.transform(key) }).subscribe(() =>
-    this.hotKeysService.addShortcut({ keys: 'Space' }).subscribe(() =>
+        this.nextItem()
-      {
+      )
+    });
+    shortcuts.showDisplay.forEach((key) => {
+      this.shortcutsService.addShortcut({ keys: shortcutPipe.transform(key) }).subscribe(() => {
         if (this.state.displayMode !== DisplayMode.Presentation) {
           this.showDisplay();
         }
-      }
+      })
-    );
+    });
-    this.hotKeysService.addShortcut({ keys: 't' }).subscribe(() =>
+    shortcuts.themeDisplay.forEach((key) => {
-      this.state.displayMode === DisplayMode.Theme ? this.showDisplay() : this.themeDisplay()
+      this.shortcutsService.addShortcut({ keys: shortcutPipe.transform(key) }).subscribe(() =>
-    );
+        this.state.displayMode === DisplayMode.Theme ? this.showDisplay() : this.themeDisplay()
-    this.hotKeysService.addShortcut({ keys: 'code.Period' }).subscribe(() =>
+      )
-      this.state.displayMode === DisplayMode.Blank ? this.showDisplay() : this.blankDisplay()
+    });
-    );
+    shortcuts.blankDisplay.forEach((key) => {
-    this.hotKeysService.addShortcut({ keys: 'd' }).subscribe(() =>
+      this.shortcutsService.addShortcut({ keys: shortcutPipe.transform(key) }).subscribe(() =>
-      this.state.displayMode === DisplayMode.Desktop ? this.showDisplay() : this.desktopDisplay()
+        this.state.displayMode === DisplayMode.Blank ? this.showDisplay() : this.blankDisplay()
-    );
+      )
+    });
+    shortcuts.desktopDisplay.forEach((key) => {
+      this.shortcutsService.addShortcut({ keys: shortcutPipe.transform(key) }).subscribe(() =>
+        this.state.displayMode === DisplayMode.Desktop ? this.showDisplay() : this.desktopDisplay()
+      )
+    });
   }
 
   openDisplayModeSelector(): void {

src/app/components/shortcuts/shortcut.pipe.ts

@@ -0,0 +1,23 @@
+import { Pipe, PipeTransform } from '@angular/core';
+
+@Pipe({name: 'shortcut'})
+export class ShortcutPipe implements PipeTransform {
+    transform(value: string): string {
+      if (!value) {
+        return value;
+      }
+      if (typeof value !== 'string') {
+        throw Error(`Invalid pipe argument: '${value}' for pipe 'ShortcutPipe'`);
+      }
+      value = value.replace('.', 'code.period');
+      value = value.replace('PgUp', 'pageup');
+      value = value.replace('PgDown', 'pagedown');
+      value = value.replace('Up', 'arrowup');
+      value = value.replace('Down', 'arrowdown');
+      value = value.replace('Left', 'arrowleft');
+      value = value.replace('Right', 'arrowright');
+      value = value.replace(/(Alt|Shift)\+/, '$1.');
+      value = value.replace(/Ctrl\+/, 'control.');
+      return value.toLowerCase();
+    }
+}

src/app/hotkeys.service.ts

@@ -1,45 +0,0 @@
-import { DOCUMENT } from '@angular/common';
-import { Inject, Injectable } from '@angular/core';
-import { EventManager } from '@angular/platform-browser';
-import { Observable } from 'rxjs';
-
-interface Options {
-  element: any;
-  keys: string;
-}
-
-@Injectable({ providedIn: 'root' })
-export class HotKeysService {
-  defaults: Partial<Options> = {
-    element: this.document
-  };
-
-  constructor(private eventManager: EventManager, @Inject(DOCUMENT) private document: Document) {
-  }
-
-  addShortcut(options: Partial<Options>) {
-    const merged = { ...this.defaults, ...options };
-    const event = `keydown.${merged.keys}`;
-
-    return new Observable(observer => {
-      const handler = (e: KeyboardEvent) => {
-        const activeElement = this.document.activeElement;
-        const notOnInput = activeElement?.tagName !== 'INPUT' && activeElement?.tagName !== 'TEXTAREA';
-        if (notOnInput) {
-          if (document.URL.endsWith('/slides')) {
-            e.preventDefault();
-            observer.next(e);
-          }
-        }
-      };
-
-      const dispose = this.eventManager.addEventListener(
-        merged.element, event, handler
-      );
-
-      return () => {
-        dispose();
-      };
-    });
-  }
-}

src/app/openlp.service.ts

@@ -10,6 +10,7 @@ import {
   ServiceItem,
   Theme,
   MainView,
+  Shortcut,
   SystemInformation,
   Credentials,
   AuthToken,
@@ -96,6 +97,10 @@ export class OpenLPService {
     return this.doGet<MainView>(`${this.apiURL}/core/live-image`);
   }
 
+  getShortcuts(): Observable<Shortcut[]> {
+    return this.doGet(`${this.apiURL}/core/shortcuts`);
+  }
+
   getSearchablePlugins(): Observable<PluginDescription[]> {
     return this.doGet<PluginDescription[]>(`${this.apiURL}/core/plugins`);
   }

src/app/responses.ts

@@ -66,6 +66,11 @@ export interface MainView {
   binary_image: string;
 }
 
+export interface Shortcut {
+  action: string;
+  shortcut: string[];
+}
+
 export interface SystemInformation {
   websocket_port: number;
   login_required: boolean;

src/app/shortcuts.service.ts

@@ -0,0 +1,109 @@
+import { DOCUMENT } from '@angular/common';
+import { EventEmitter, Inject, Injectable } from '@angular/core';
+import { EventManager } from '@angular/platform-browser';
+import { Observable } from 'rxjs';
+import { OpenLPService } from './openlp.service';
+
+export class Shortcuts {
+  previousSlide = ['Up', 'PgUp'];
+  nextSlide = ['Down', 'PgDown'];
+  previousItem = ['Left'];
+  nextItem = ['Right'];
+  showDisplay = ['Space'];
+  themeDisplay = ['t'];
+  blankDisplay = ['.'];
+  desktopDisplay = ['d'];
+}
+
+interface Options {
+  element: any;
+  keys: string;
+}
+
+@Injectable({ providedIn: 'root' })
+export class ShortcutsService {
+  defaults: Partial<Options> = {
+    element: this.document
+  };
+
+  constructor(
+    @Inject(DOCUMENT) private document: Document,
+    private eventManager: EventManager,
+    private openlpService: OpenLPService) {
+      this.shortcutsChanged$ = new EventEmitter<Shortcuts>();
+    }
+
+  private shortcuts: Shortcuts
+  public shortcutsChanged$: EventEmitter<Shortcuts>;
+
+  getShortcuts(useShortcutsFromOpenlp: boolean) {
+    const shortcuts: Shortcuts = new Shortcuts()
+    if (useShortcutsFromOpenlp) {
+      this.openlpService.getShortcuts().subscribe(res => {
+        res.forEach((shortcut) => {
+          switch (shortcut.action) {
+            case 'blankScreen':
+              shortcuts.blankDisplay = shortcut.shortcut;
+              break;
+            case 'desktopScreen':
+              shortcuts.desktopDisplay = shortcut.shortcut;
+              break;
+            case 'nextItem_live':
+              shortcuts.nextSlide = shortcut.shortcut;
+              break;
+            case 'nextService':
+              shortcuts.nextItem = shortcut.shortcut;
+              break;
+            case 'previousItem_live':
+              shortcuts.previousSlide = shortcut.shortcut;
+              break;
+            case 'previousService':
+              shortcuts.previousItem = shortcut.shortcut;
+              break;
+            case 'showScreen':
+              shortcuts.showDisplay = shortcut.shortcut;
+              break;
+            case 'themeScreen':
+              shortcuts.themeDisplay = shortcut.shortcut;
+              break;
+          }
+        })
+        this._handleShortcutsChanged(shortcuts);
+      })
+    } else {
+      this._handleShortcutsChanged(shortcuts);
+    }
+  }
+
+ 
+  addShortcut(options: Partial<Options>) {
+    const merged = { ...this.defaults, ...options };
+    const event = `keydown.${merged.keys}`;
+
+    return new Observable(observer => {
+      const handler = (e: KeyboardEvent) => {
+        const activeElement = this.document.activeElement;
+        const notOnInput = activeElement?.tagName !== 'INPUT' && activeElement?.tagName !== 'TEXTAREA';
+        if (notOnInput) {
+          if (document.URL.endsWith('/slides')) {
+            e.preventDefault();
+            observer.next(e);
+          }
+        }
+      };
+
+      const dispose = this.eventManager.addEventListener(
+        merged.element, event, handler
+      );
+
+      return () => {
+        dispose();
+      };
+    });
+  }
+
+  protected _handleShortcutsChanged(shortcuts: Shortcuts) {
+    this.shortcuts = shortcuts;
+    this.shortcutsChanged$.emit(this.shortcuts);
+  }
+}