fix: cleanup

frontend/src/utils/pdfAnchor.ts

@@ -7,10 +7,6 @@ export interface ParsedPdfAnchor {
 
 const PDF_ANCHOR_PREFIX = "pdf:v1:";
 
-export function isPdfAnchor(anchor: string): boolean {
-  return anchor.startsWith(PDF_ANCHOR_PREFIX) || anchor.startsWith("pdf:page:");
-}
-
 export function parsePageHref(href: string): number | null {
   const match = href.match(/^pdf:page:(\d+)$/);
   if (!match) return null;
@@ -38,7 +34,7 @@ export function parsePdfAnchor(anchor: string): ParsedPdfAnchor | null {
 
   const rectsMatch = anchor.match(/rects=([^;]+)/);
   let rects: PdfRect[] = [];
-  if (rectsMatch) {
+  if (rectsMatch?.[1]) {
     try {
       const parsed = JSON.parse(decodeURIComponent(rectsMatch[1])) as unknown;
       if (Array.isArray(parsed)) {
@@ -56,27 +52,3 @@ export function parsePdfAnchor(anchor: string): ParsedPdfAnchor | null {
 
   return { page, rects };
 }
-
-export function rectsFromSelection(
-  range: Range,
-  pageElement: HTMLElement,
-): PdfRect[] {
-  const pageRect = pageElement.getBoundingClientRect();
-  if (pageRect.width <= 0 || pageRect.height <= 0) return [];
-
-  const rects: PdfRect[] = [];
-  for (const clientRect of range.getClientRects()) {
-    if (clientRect.width <= 0 || clientRect.height <= 0) continue;
-    const x = (clientRect.left - pageRect.left) / pageRect.width;
-    const y = (clientRect.top - pageRect.top) / pageRect.height;
-    const w = clientRect.width / pageRect.width;
-    const h = clientRect.height / pageRect.height;
-    rects.push([
-      Math.max(0, Math.min(1, x)),
-      Math.max(0, Math.min(1, y)),
-      Math.max(0, Math.min(1, w)),
-      Math.max(0, Math.min(1, h)),
-    ]);
-  }
-  return rects;
-}