fork from https://github.com/mozilla/pdf.js.git

test/integration/cursor_tools_spec.mjs

@@ -0,0 +1,134 @@
+/* Copyright 2026 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {
+  closePages,
+  getRect,
+  loadAndWait,
+  waitForSelectionChange,
+} from "./test_utils.mjs";
+
+async function enableSelectTool(page) {
+  await page.click("#secondaryToolbarToggleButton");
+  await page.waitForSelector("#secondaryToolbar", { hidden: false });
+
+  await page.click("#cursorSelectTool");
+  await page.waitForFunction(
+    "window.PDFViewerApplication.pdfCursorTools.activeTool === 0"
+  );
+}
+
+async function enableHandTool(page) {
+  await page.click("#secondaryToolbarToggleButton");
+  await page.waitForSelector("#secondaryToolbar", { hidden: false });
+
+  await page.click("#cursorHandTool");
+  await page.waitForFunction(
+    "window.PDFViewerApplication.pdfCursorTools.activeTool === 1"
+  );
+}
+
+describe("Cursor tools", () => {
+  describe("Text selection", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait(
+        "tracemonkey.pdf",
+        ".textLayer .endOfContent",
+        100
+      );
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("check that text selection works", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await enableSelectTool(page);
+
+          const spanRect = await getRect(
+            page,
+            `.page[data-page-number="1"] > .textLayer > span`
+          );
+          const x = spanRect.x + 1,
+            y = spanRect.y + spanRect.height / 2;
+
+          await page.mouse.click(x, y, { count: 3 });
+          await waitForSelectionChange(
+            page,
+            "Trace-based Just-in-Time Type Specialization for Dynamic"
+          );
+
+          // Remove the selection.
+          await page.mouse.click(x, y);
+          await waitForSelectionChange(page, "");
+        })
+      );
+    });
+  });
+
+  describe("Hand tool", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait(
+        "tracemonkey.pdf",
+        ".textLayer .endOfContent",
+        100
+      );
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("check that hand tool scrolling works", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await enableHandTool(page);
+
+          const pageHeight = await page.evaluate(
+            () =>
+              document.querySelector(`.page[data-page-number="1"]`).offsetHeight
+          );
+          const steps = 10,
+            delta = Math.floor(pageHeight / steps);
+
+          const spanRect = await getRect(
+            page,
+            `.page[data-page-number="1"] > .textLayer > span`
+          );
+          const x = spanRect.x + 1,
+            y = spanRect.y + spanRect.height / 2;
+
+          for (let i = 0; i < steps; i++) {
+            await page.mouse.move(x, y);
+            await page.mouse.down();
+            await page.mouse.move(x, y - delta);
+            await page.mouse.up();
+          }
+          // Ensure that the second page is visible.
+          await page.waitForFunction("window.PDFViewerApplication.page === 2");
+
+          // Finally, disable the hand tool.
+          await enableSelectTool(page);
+        })
+      );
+    });
+  });
+});