build(deps): bump pdfjs-dist from 5.6.205 to 6.2.108

Changelog.md

@@ -45,6 +45,7 @@
 - Updated images: moved externally-hosted images into repository, ensured images are vertically centred and displayed as new paragraphs, and cropped images to remove blank space (#8053)
 
 ### 🔧 Internal changes
+- Updated `pdfjs-dist` to v6.2.108 (#8135)
 - Refactored annotation routes to respond with JSON rather than Javascript (#8127)
 - Removed `:blob` CSP exception for `img_src` for `groups_controller.rb` and `exam_templates_controller.rb`
 - Replaced `jcrop` with `cropperjs` for the exam template cover page crop selector (#8114)

app/javascript/Components/Result/pdf_viewer.jsx

@@ -28,6 +28,9 @@ export class PDFViewer extends React.PureComponent {
     this.pdfViewer = new pdfjsViewer.PDFViewer({
       eventBus: this.eventBus,
       container: this.pdfContainer.current,
+      // Text selection conflicts with dragging out annotation regions while grading.
+      // 0 is TextLayerMode.DISABLE (pdfjsViewer doesn't export the enum).
+      textLayerMode: this.props.released_to_students ? undefined : 0,
     });
     window.pdfViewer = this; // For fixing display when pane width changes
 
@@ -67,7 +70,7 @@ export class PDFViewer extends React.PureComponent {
   }
 
   loadPDFFile = () => {
-    pdfjs.getDocument(this.props.url).promise.then(pdfDocument => {
+    pdfjs.getDocument({url: this.props.url}).promise.then(pdfDocument => {
       this.pdfViewer.setDocument(pdfDocument);
       this.props.setLoadingCallback(false);
     });

package.json

@@ -25,7 +25,7 @@
     "marked": "^16.0.0",
     "mime": "^4.1.0",
     "mousetrap": "^1.6.5",
-    "pdfjs-dist": "^5.6.205",
+    "pdfjs-dist": "^6.2.108",
     "prismjs": "^1.30.0",
     "prop-types": "^15.8.1",
     "react": "^19.2.8",