Just save this

[ci skip]

src-ui/src/app/components/common/preview-popup/preview-popup.component.html

@@ -1,10 +1,14 @@
+@if (!previewOnly) {
   <a [href]="link ?? previewUrl" class="{{linkClasses}}" [target]="linkTarget" [title]="linkTitle"
     [ngbPopover]="previewContent" [popoverTitle]="document.title | documentTitle" container="body"
     autoClose="true" [popoverClass]="popoverClass" (mouseenter)="mouseEnterPreview()" (mouseleave)="mouseLeavePreview()" #popover="ngbPopover">
     <ng-content></ng-content>
   </a>
+} @else {
+  <ng-container [ngTemplateOutlet]="previewContent" [ngTemplateOutletContext]="{ $implicit: document }"></ng-container>
+}
 <ng-template #previewContent>
-  <div class="preview-popup-container" (mouseenter)="mouseEnterPreview()" (mouseleave)="mouseLeavePreview(); close()">
+  <div class="preview-popup-container" [class.full-size]="previewOnly" (mouseenter)="mouseEnterPreview()" (mouseleave)="mouseLeavePreview(); close()">
     @if (error) {
       <div class="w-100 h-100 position-relative">
         <p class="fst-italic position-absolute top-50 start-50 translate-middle" i18n>Error loading preview</p>

src-ui/src/app/components/common/preview-popup/preview-popup.component.scss

@@ -4,6 +4,16 @@
     overflow-y: scroll;
 }
 
+.preview-popup-container.full-size {
+  width: 100% !important;
+  height: 100% !important;
+
+  > * {
+    width: 100% !important;
+    height: 100% !important;
+  }
+}
+
 ::ng-deep .popover.popover-preview {
     max-width: 32rem;
 }

src-ui/src/app/components/common/preview-popup/preview-popup.component.ts

@@ -1,3 +1,4 @@
+import { NgTemplateOutlet } from '@angular/common'
 import { HttpClient } from '@angular/common/http'
 import { Component, Input, OnDestroy, ViewChild } from '@angular/core'
 import { NgbPopover, NgbPopoverModule } from '@ng-bootstrap/ng-bootstrap'
@@ -17,6 +18,7 @@ import { SettingsService } from 'src/app/services/settings.service'
   styleUrls: ['./preview-popup.component.scss'],
   imports: [
     NgbPopoverModule,
+    NgTemplateOutlet,
     DocumentTitlePipe,
     PdfViewerModule,
     SafeUrlPipe,
@@ -47,6 +49,9 @@ export class PreviewPopupComponent implements OnDestroy {
   @Input()
   linkTitle: string = $localize`Open preview`
 
+  @Input()
+  previewOnly: boolean = false
+
   unsubscribeNotifier: Subject<any> = new Subject()
 
   error = false
@@ -91,6 +96,8 @@ export class PreviewPopupComponent implements OnDestroy {
   }
 
   init() {
+    this.error = false
+    this.requiresPassword = false
     if (this.document.mime_type?.includes('text')) {
       this.http
         .get(this.previewURL, { responseType: 'text' })
@@ -119,6 +126,7 @@ export class PreviewPopupComponent implements OnDestroy {
   }
 
   mouseEnterPreview() {
+    if (this.previewOnly) return
     this.mouseOnPreview = true
     if (!this.popover.isOpen()) {
       // we're going to open but hide to pre-load content during hover delay
@@ -136,10 +144,12 @@ export class PreviewPopupComponent implements OnDestroy {
   }
 
   mouseLeavePreview() {
+    if (this.previewOnly) return
     this.mouseOnPreview = false
   }
 
   public close(immediate: boolean = false) {
+    if (this.previewOnly) return
     setTimeout(
       () => {
         if (!this.mouseOnPreview) this.popover.close()

src-ui/src/app/components/document-list/document-list.component.html

@@ -27,6 +27,7 @@
       </div>
     </div>
   </div>
+
   <div class="btn-group flex-fill" role="group">
     <input type="radio" class="btn-check" [(ngModel)]="list.displayMode" value="table" id="displayModeDetails" name="displayModeDetails">
     <label for="displayModeDetails" class="btn btn-outline-primary btn-sm">
@@ -42,6 +43,13 @@
     </label>
   </div>
 
+  <div class="btn-group flex-fill" role="group">
+    <input type="checkbox" class="btn-check" [(ngModel)]="list.showPreviewPane" value="table" id="previewPane" name="previewPane">
+    <label for="previewPane" class="btn btn-outline-primary btn-sm">
+      <i-bs name="window-split"></i-bs>
+    </label>
+  </div>
+
   <div ngbDropdown class="btn-group flex-fill">
     <button class="btn btn-outline-primary btn-sm" id="dropdownBasic1" ngbDropdownToggle>
       <i-bs name="arrow-down-up"></i-bs>
@@ -105,7 +113,8 @@
   <pngx-bulk-editor [hidden]="!isBulkEditing" [disabled]="!isBulkEditing"></pngx-bulk-editor>
 </div>
 
-
+<div class="row">
+  <div [class.col-lg-6]="list.showPreviewPane" [class.col]="!list.showPreviewPane">
   <ng-template #pagination>
     <div class="d-flex flex-wrap gap-3 justify-content-between align-items-center mb-3">
       <div class="d-flex align-items-center">
@@ -400,3 +409,39 @@
         </div>
       }
     }
+  </div>
+  @if (list.showPreviewPane) {
+    <div class="col-lg-6">
+      <div class="row">
+        <div class="btn-toolbar mb-1 border-bottom align-items-center">
+          <div class="btn-group pb-3">
+            <button type="button" class="btn btn-sm btn-outline-secondary" i18n-title title="Previous" (click)="previousDoc()" [disabled]="list.documents.length === 0 || !hasPrevious">
+              <i-bs width="1.2em" height="1.2em" name="arrow-left" class="me-1"></i-bs><ng-container i18n>Previous</ng-container>
+            </button>
+            <button type="button" class="btn btn-sm btn-outline-secondary"  i18n-title title="Next" (click)="nextDoc()" [disabled]="list.documents.length === 0 || !hasNext">
+              <ng-container i18n>Next</ng-container><i-bs width="1.2em" height="1.2em" name="arrow-right" class="ms-1"></i-bs>
+            </button>
+          </div>
+          <div class="input-group pb-3 ms-auto">
+            <h5 class="mb-0">
+              {{list.firstSelectedDocument?.title}}
+            </h5>
+          </div>
+        </div>
+      </div>
+      <div class="row">
+        <div class="col preview-pane">
+          @if (list.selected.size > 0) {
+            <pngx-preview-popup [document]="list.firstSelectedDocument" [previewOnly]="true"></pngx-preview-popup>
+          } @else {
+            <div class="w-100 h-100 position-relative">
+              <p class="fst-italic">
+                <ng-container i18n>No document selected</ng-container>
+              </p>
+            </div>
+          }
+        </div>
+      </div>
+    </div>
+  }
+</div>

src-ui/src/app/components/document-list/document-list.component.scss

@@ -80,3 +80,9 @@ a {
 pngx-page-header .dropdown-menu {
   --bs-dropdown-min-width: 12em;
 }
+
+.preview-pane {
+  height: 60rem;
+  top: 70px;
+  position: sticky;
+}

src-ui/src/app/components/document-list/document-list.component.ts

@@ -326,25 +326,37 @@ export class DocumentListComponent
     this.hotKeyService
       .addShortcut({
         keys: 'control.arrowleft',
-        description: $localize`Previous page`,
+        description: $localize`Previous page / document`,
       })
       .pipe(takeUntil(this.unsubscribeNotifier))
       .subscribe(() => {
+        if (this.list.showPreviewPane) {
+          if (this.hasPrevious) {
+            this.previousDoc()
+          }
+        } else {
           if (this.list.currentPage > 1) {
             this.list.currentPage--
           }
+        }
       })
 
     this.hotKeyService
       .addShortcut({
         keys: 'control.arrowright',
-        description: $localize`Next page`,
+        description: $localize`Next page / document`,
       })
       .pipe(takeUntil(this.unsubscribeNotifier))
       .subscribe(() => {
+        if (this.list.showPreviewPane) {
+          if (this.hasNext) {
+            this.nextDoc()
+          }
+        } else {
           if (this.list.currentPage < this.list.getLastPage()) {
             this.list.currentPage++
           }
+        }
       })
   }
 
@@ -473,4 +485,45 @@ export class DocumentListComponent
   resetFilters() {
     this.filterEditor.resetSelected()
   }
+
+  public get hasPrevious(): boolean {
+    return (
+      (this.list.selected.size > 0 &&
+        this.list.documents.indexOf(this.list.firstSelectedDocument) > 0) ||
+      (this.list.selected.size === 0 && this.list.documents.length > 0)
+    )
+  }
+
+  public get hasNext(): boolean {
+    return (
+      (this.list.selected.size > 0 &&
+        this.list.documents.indexOf(this.list.firstSelectedDocument) <
+          this.list.documents.length - 1) ||
+      (this.list.selected.size === 0 && this.list.documents.length > 0)
+    )
+  }
+
+  public nextDoc(): void {
+    const index =
+      this.list.selected.size === 0
+        ? 0
+        : Math.min(
+            this.list.documents.indexOf(this.list.firstSelectedDocument) + 1,
+            this.list.documents.length - 1
+          )
+    this.list.selected.clear()
+    this.list.selected.add(this.list.documents[index].id)
+  }
+
+  public previousDoc(): void {
+    const index =
+      this.list.selected.size === 0
+        ? 0
+        : Math.max(
+            this.list.documents.indexOf(this.list.firstSelectedDocument) - 1,
+            0
+          )
+    this.list.selected.clear()
+    this.list.selected.add(this.list.documents[index].id)
+  }
 }

src-ui/src/app/services/document-list-view.service.ts

@@ -79,6 +79,11 @@ export interface ListViewState {
    * The fields to display in the document list.
    */
   displayFields?: DisplayField[]
+
+  /**
+   * Whether the preview pane is shown.
+   */
+  showPreviewPane?: boolean
 }
 
 /**
@@ -165,6 +170,7 @@ export class DocumentListViewService {
       sortReverse: true,
       filterRules: [],
       selected: new Set<number>(),
+      showPreviewPane: false,
     }
   }
 
@@ -451,6 +457,15 @@ export class DocumentListViewService {
     this.saveDocumentListView()
   }
 
+  get showPreviewPane(): boolean {
+    return this.activeListViewState.showPreviewPane
+  }
+
+  set showPreviewPane(show: boolean) {
+    this.activeListViewState.showPreviewPane = show
+    this.saveDocumentListView()
+  }
+
   private saveDocumentListView() {
     if (this._activeSavedViewId == null) {
       let savedState: ListViewState = {
@@ -461,6 +476,7 @@ export class DocumentListViewService {
         sortReverse: this.activeListViewState.sortReverse,
         displayMode: this.activeListViewState.displayMode,
         displayFields: this.activeListViewState.displayFields,
+        showPreviewPane: this.activeListViewState.showPreviewPane,
       }
       localStorage.setItem(
         DOCUMENT_LIST_SERVICE.CURRENT_VIEW_CONFIG,
@@ -626,4 +642,8 @@ export class DocumentListViewService {
   documentIndexInCurrentView(documentID: number): number {
     return this.documents.map((d) => d.id).indexOf(documentID)
   }
+
+  get firstSelectedDocument(): Document {
+    return this.documents.find((d) => this.selected.has(d.id))
+  }
 }

src-ui/src/main.ts

@@ -125,6 +125,7 @@ import {
   trash,
   uiRadios,
   upcScan,
+  windowSplit,
   windowStack,
   x,
   xCircle,
@@ -323,6 +324,7 @@ const icons = {
   trash,
   uiRadios,
   upcScan,
+  windowSplit,
   windowStack,
   x,
   xCircle,