fixes

client/src/app/site/projector/components/presentation-control/presentation-control.component.ts

@@ -1,17 +1,17 @@
 import { Component, Input } from '@angular/core';
-import { Title } from '@angular/platform-browser';
 import { MatSnackBar } from '@angular/material';
+import { Title } from '@angular/platform-browser';
 
 import { TranslateService } from '@ngx-translate/core';
 
 import { BaseViewComponent } from 'app/site/base/base-view';
-import { ViewProjector } from '../../models/view-projector';
-import { ProjectorElements, ProjectorElement } from 'app/shared/models/core/projector';
 import { Mediafile } from 'app/shared/models/mediafiles/mediafile';
 import { MediafileRepositoryService } from 'app/core/repositories/mediafiles/mediafile-repository.service';
-import { ViewMediafile } from 'app/site/mediafiles/models/view-mediafile';
+import { ProjectorElements, ProjectorElement } from 'app/shared/models/core/projector';
-import { SlideManager } from 'app/slides/services/slide-manager.service';
 import { ProjectorService } from 'app/core/core-services/projector.service';
+import { SlideManager } from 'app/slides/services/slide-manager.service';
+import { ViewMediafile } from 'app/site/mediafiles/models/view-mediafile';
+import { ViewProjector } from '../../models/view-projector';
 
 /**
  * The presentation controls.
@@ -40,6 +40,16 @@ export class PresentationControlComponent extends BaseViewComponent {
     // All mediafile elements.
     public elements: ProjectorElements = [];
 
+    /**
+     * Constructor
+     *
+     * @param titleService
+     * @param translate
+     * @param matSnackBar
+     * @param mediafileRepo
+     * @param slideManager
+     * @param projectorService
+     */
     public constructor(
         titleService: Title,
         translate: TranslateService,
@@ -51,6 +61,9 @@ export class PresentationControlComponent extends BaseViewComponent {
         super(titleService, translate, matSnackBar);
     }
 
+    /**
+     * Updates incoming elements
+     */
     private updateElements(): void {
         this.elements = this.projector.elements.filter(element => {
             if (element.name !== Mediafile.COLLECTIONSTRING && !element.id) {
@@ -65,26 +78,48 @@ export class PresentationControlComponent extends BaseViewComponent {
         return this.mediafileRepo.getViewModel(element.id);
     }
 
+    /**
+     * @returns the currently used page number (1 in case of unnumbered elements)
+     */
     public getPage(element: ProjectorElement): number {
         return element.page || 1;
     }
 
+    /**
+     * moves the projected forward by one page (if not already at end)
+     *
+     * @param element
+     */
     public pdfForward(element: ProjectorElement): void {
         if (this.getPage(element) < this.getMediafile(element).pages) {
             this.pdfSetPage(element, this.getPage(element) + 1);
         }
     }
 
+    /**
+     * moves the projected one page backwards (if not already at beginnning)
+     *
+     * @param element
+     */
     public pdfBackward(element: ProjectorElement): void {
         if (this.getPage(element) > 1) {
             this.pdfSetPage(element, this.getPage(element) - 1);
         }
     }
 
+    /**
+     * Moves the element to a specific given page. If the number given is greater
+     * than the amount of element pages, it does nothing
+     *
+     * @param element
+     * @param page
+     */
     public pdfSetPage(element: ProjectorElement, page: number): void {
         const idElement = this.slideManager.getIdentifialbeProjectorElement(element);
-        idElement.page = page;
+        if (this.getMediafile(element).pages >= page) {
-        this.projectorService.updateElement(this.projector.projector, idElement).then(null, this.raiseError);
+            idElement.page = page;
+            this.projectorService.updateElement(this.projector.projector, idElement).then(null, this.raiseError);
+        }
     }
 
     public pdfZoom(element: ProjectorElement, direction: 'in' | 'out' | 'reset'): void {}

client/src/app/site/projector/components/projector-detail/projector-detail.component.html

@@ -262,6 +262,15 @@
                         </mat-list-item>
                     </mat-list>
                 </mat-expansion-panel>
+
+                <!-- File display controls -->
+                <mat-expansion-panel>
+                    <mat-expansion-panel-header>
+                            <span translate>Media controls</span>
+                    </mat-expansion-panel-header>
+                    <os-presentation-control [projector]="projector">
+                    </os-presentation-control>
+                </mat-expansion-panel>
             </mat-accordion>
         </div>
     </div>

client/src/app/site/projector/projector.module.ts

@@ -1,16 +1,16 @@
-import { NgModule } from '@angular/core';
 import { CommonModule } from '@angular/common';
+import { NgModule } from '@angular/core';
 
-import { ProjectorRoutingModule } from './projector-routing.module';
-import { SharedModule } from '../../shared/shared.module';
-import { ProjectorListComponent } from './components/projector-list/projector-list.component';
-import { ProjectorDetailComponent } from './components/projector-detail/projector-detail.component';
 import { CountdownControlsComponent } from './components/countdown-controls/countdown-controls.component';
 import { CountdownDialogComponent } from './components/countdown-dialog/countdown-dialog.component';
 import { MessageControlsComponent } from './components/message-controls/message-controls.component';
 import { MessageDialogComponent } from './components/message-dialog/message-dialog.component';
 import { PresentationControlComponent } from './components/presentation-control/presentation-control.component';
+import { ProjectorDetailComponent } from './components/projector-detail/projector-detail.component';
+import { ProjectorListComponent } from './components/projector-list/projector-list.component';
 import { ProjectorListEntryComponent } from './components/projector-list-entry/projector-list-entry.component';
+import { ProjectorRoutingModule } from './projector-routing.module';
+import { SharedModule } from '../../shared/shared.module';
 
 @NgModule({
     imports: [CommonModule, ProjectorRoutingModule, SharedModule],
@@ -21,12 +21,14 @@ import { ProjectorListEntryComponent } from './components/projector-list-entry/p
         CountdownControlsComponent,
         CountdownDialogComponent,
         MessageControlsComponent,
-        MessageDialogComponent
+        MessageDialogComponent,
+        PresentationControlComponent
     ],
     entryComponents: [
         CountdownDialogComponent,
         MessageDialogComponent,
-        PresentationControlComponent
+        PresentationControlComponent,
+        ProjectorListEntryComponent
     ]
 })
 export class ProjectorModule {}

client/src/app/slides/mediafiles/mediafile/mediafile-slide.module.ts

@@ -4,8 +4,8 @@ import { CommonModule } from '@angular/common';
 import { PdfViewerModule } from 'ng2-pdf-viewer';
 
 import { MediafileSlideComponent } from './mediafile-slide.component';
-import { SLIDE } from 'app/slides/slide-token';
 import { SharedModule } from 'app/shared/shared.module';
+import { SLIDE } from 'app/slides/slide-token';
 
 @NgModule({
     imports: [CommonModule, SharedModule, PdfViewerModule],