[Editor] Take into account the page translation when computing the qu…

…adpoints when saving an highlight

It fixes mozilla#18360.

src/display/editor/highlight.js

@@ -671,12 +671,13 @@ class HighlightEditor extends AnnotationEditor {
       return null;
     }
     const [pageWidth, pageHeight] = this.pageDimensions;
+    const [pageX, pageY] = this.pageTranslation;
     const boxes = this.#boxes;
     const quadPoints = new Float32Array(boxes.length * 8);
     let i = 0;
     for (const { x, y, width, height } of boxes) {
-      const sx = x * pageWidth;
-      const sy = (1 - y - height) * pageHeight;
+      const sx = x * pageWidth + pageX;
+      const sy = (1 - y - height) * pageHeight + pageY;
       // The specifications say that the rectangle should start from the bottom
       // left corner and go counter-clockwise.
       // But when opening the file in Adobe Acrobat it appears that this isn't

test/integration/highlight_editor_spec.mjs

@@ -1302,6 +1302,41 @@ describe("Highlight Editor", () => {
     });
   });
 
+  describe("Quadpoints must be correct when they're in a translated page", () => {
+    let pages;
+
+    beforeAll(async () => {
+      pages = await loadAndWait("issue18360.pdf", ".annotationEditorLayer");
+    });
+
+    afterAll(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that the quadpoints for an highlight are almost correct", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await switchToHighlight(page);
+
+          const rect = await getSpanRectFromText(page, 1, "Hello World");
+          await page.mouse.click(
+            rect.x + rect.width / 2,
+            rect.y + rect.height / 2,
+            { count: 3, delay: 100 }
+          );
+
+          await page.waitForSelector(getEditorSelector(0));
+          await waitForSerialized(page, 1);
+          const quadPoints = await getFirstSerialized(page, e => e.quadPoints);
+          const expected = [148, 623, 209, 623, 148, 637, 209, 637];
+          expect(quadPoints.every((x, i) => Math.abs(x - expected[i]) <= 5))
+            .withContext(`In ${browserName}`)
+            .toBeTrue();
+        })
+      );
+    });
+  });
+
   describe("Editor must be unselected when the color picker is Escaped", () => {
     let pages;
 

test/pdfs/.gitignore

@@ -652,3 +652,4 @@
 !bug1539074.pdf
 !bug1539074.1.pdf
 !issue18305.pdf
+!issue18360.pdf