fix(highlight): Fix text highlighting for PDFjs upgrade (#698)

box · Sep 23, 2022 · bd8b1ff · bd8b1ff
1 parent 6cf6e18
commit bd8b1ff
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/document/docUtil.ts b/src/document/docUtil.ts
@@ -39,6 +39,10 @@ export function getSelection(): Selection | null {
     // We only care about the last range
     let range = selection.getRangeAt(selection.rangeCount - 1);
 
+    // Changes to the text layer in PDFjs v2.14.305 require the start range to be set manually for correct highlighting behavior
+    const startRange = selection.getRangeAt(0);
+    range.setStart(startRange.startContainer, startRange.startOffset);
+
     const containerEl = findClosestElWithClass(range.endContainer as Element, 'textLayer');
     const startPage = getPageNumber(range.startContainer as Element);
     const endPage = getPageNumber(range.endContainer as Element);