feat: add dictionary link

src/website/deps.ts

@@ -1,4 +1,11 @@
-export { PDFDocument, PDFPage, rgb } from "https://esm.sh/pdf-lib@^1.11.1";
+export {
+  PDFDocument,
+  PDFName,
+  PDFPage,
+  PDFRef,
+  PDFString,
+  rgb,
+} from "https://esm.sh/pdf-lib@^1.11.1";
 export { default as fontkit } from "https://esm.sh/@pdf-lib/fontkit@^1.0.0";
 export { default as React } from "https://esm.sh/react@17";
 export { default as ReactDOM } from "https://esm.sh/react-dom@17";

src/website/pdf.ts

@@ -1,4 +1,13 @@
-import { fontkit, PDFDocument, PDFPage, rgb, shuffle } from "./deps.ts";
+import {
+  fontkit,
+  PDFDocument,
+  PDFName,
+  PDFPage,
+  PDFRef,
+  PDFString,
+  rgb,
+  shuffle,
+} from "./deps.ts";
 import { JSONType, Voca } from "../types.ts";
 
 function downloadBuffer(buffer: Uint8Array, fileName: string) {
@@ -30,12 +39,18 @@ export async function makePdf(voca_list: Voca[]) {
   let page!: PDFPage;
   let col = -1;
   let yCursor = 1;
+  let pdfUrlList: PDFRef[] = [];
 
   // 문제 생성
   for (let i = 0; i < voca_list.length; ++i) {
     const data = voca_list[i];
     if (i % perPage === 0) {
+      if (page) {
+        page.node.set(PDFName.of("Annots"), pdfDoc.context.obj(pdfUrlList));
+      }
+      pdfUrlList = [];
       page = pdfDoc.addPage();
+
       yCursor = 1;
       col = -1;
     }
@@ -43,9 +58,33 @@ export async function makePdf(voca_list: Voca[]) {
       col++;
       yCursor = 1;
     }
-    page.drawText(`${i + 1}. ${data.word}`, {
-      x: margin + (page.getWidth() / 2) * col,
-      y: page.getHeight() - (fontSize + margin) * yCursor,
+
+    const text = `${i + 1}. ${data.word}`;
+    const textWidth = customFont.widthOfTextAtSize(text, fontSize);
+    const textHeight = customFont.heightAtSize(fontSize);
+    const textX = margin + (page.getWidth() / 2) * col;
+    const textY = page.getHeight() - (fontSize + margin) * yCursor;
+
+    const pdfUrlDict = pdfDoc.context.obj({
+      Type: "Annot",
+      Subtype: "Link",
+      Rect: [textX, textY, textX + textWidth, textY + textHeight],
+      A: {
+        Type: "Action",
+        S: "URI",
+        URI: PDFString.of(
+          `https://en.dict.naver.com/#/search?range=all&query=${
+            encodeURIComponent(data.word)
+          }`,
+        ),
+      },
+    });
+    const pdfUrl = pdfDoc.context.register(pdfUrlDict);
+    pdfUrlList.push(pdfUrl);
+
+    page.drawText(text, {
+      x: textX,
+      y: textY,
       size: fontSize,
       font: customFont,
       color: rgb(0, 0, 0),
@@ -64,6 +103,10 @@ export async function makePdf(voca_list: Voca[]) {
   for (let i = 0; i < voca_list.length; ++i) {
     const data = voca_list[i];
     if (i % perPage === 0) {
+      if (page) {
+        page.node.set(PDFName.of("Annots"), pdfDoc.context.obj(pdfUrlList));
+      }
+      pdfUrlList = [];
       page = pdfDoc.addPage();
       yCursor = 1;
       col = -1;
@@ -72,9 +115,33 @@ export async function makePdf(voca_list: Voca[]) {
       col++;
       yCursor = 1;
     }
-    page.drawText(`${i + 1}. ${data.word}`, {
-      x: margin + (page.getWidth() / 2) * col,
-      y: page.getHeight() - (fontSize + margin) * yCursor,
+
+    const text = `${i + 1}. ${data.word}`;
+    const textWidth = customFont.widthOfTextAtSize(text, fontSize);
+    const textHeight = customFont.heightAtSize(fontSize);
+    const textX = margin + (page.getWidth() / 2) * col;
+    const textY = page.getHeight() - (fontSize + margin) * yCursor;
+
+    const pdfUrlDict = pdfDoc.context.obj({
+      Type: "Annot",
+      Subtype: "Link",
+      Rect: [textX, textY, textX + textWidth, textY + textHeight],
+      A: {
+        Type: "Action",
+        S: "URI",
+        URI: PDFString.of(
+          `https://en.dict.naver.com/#/search?range=all&query=${
+            encodeURIComponent(data.word)
+          }`,
+        ),
+      },
+    });
+    const pdfUrl = pdfDoc.context.register(pdfUrlDict);
+    pdfUrlList.push(pdfUrl);
+
+    page.drawText(text, {
+      x: textX,
+      y: textY,
       size: fontSize,
       font: customFont,
       color: rgb(0, 0, 0),