Merge pull request mozilla#19232 from nicolo-ribaudo/scroll-to-search…

…-result

Fix left offset when scrolling to search result

test/integration/find_spec.mjs

@@ -126,4 +126,31 @@ describe("find bar", () => {
       );
     });
   });
+
+  describe("issue19207.pdf", () => {
+    let pages;
+
+    beforeAll(async () => {
+      pages = await loadAndWait("issue19207.pdf", ".textLayer", 200);
+    });
+
+    afterAll(async () => {
+      await closePages(pages);
+    });
+
+    it("must scroll to the search result text", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          // Search for "40"
+          await page.click("#viewFindButton");
+          await page.waitForSelector("#viewFindButton", { hidden: false });
+          await page.type("#findInput", "40");
+
+          const highlight = await page.waitForSelector(".textLayer .highlight");
+
+          expect(await highlight.isIntersectingViewport()).toBeTrue();
+        })
+      );
+    });
+  });
 });

test/pdfs/.gitignore

@@ -690,3 +690,4 @@
 !inks_basic.pdf
 !issue19182.pdf
 !issue18911.pdf
+!issue19207.pdf

web/text_highlighter.js

@@ -193,8 +193,15 @@ class TextHighlighter {
         span.className = `${className} appended`;
         span.append(node);
         div.append(span);
-        return className.includes("selected") ? span.offsetLeft : 0;
+
+        if (className.includes("selected")) {
+          const { left } = span.getClientRects()[0];
+          const parentLeft = div.getBoundingClientRect().left;
+          return left - parentLeft;
+        }
+        return 0;
       }
+
       div.append(node);
       return 0;
     }