PDF: Prevent left/right arrow shortcuts when a PDF text field is focused.

chrome/test/data/pdf/page_change_test.js

Index: chrome/test/data/pdf/page_change_test.js
diff --git a/chrome/test/data/pdf/page_change_test.js b/chrome/test/data/pdf/page_change_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..85395d676051870188d278f60336848918cd3803
--- /dev/null
+++ b/chrome/test/data/pdf/page_change_test.js
@@ -0,0 +1,74 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function resetDocument() {
+  window.viewer.viewport.goToPage(0);
+  window.viewer.viewport.setZoom(1);
+  window.viewer.isFormFieldFocused_ = false;
+}
+
+function getCurrentPage() {
+  return window.viewer.viewport.getMostVisiblePage();
+}
+
+var tests = [
+  /**
+   * Test that the left/right arrows change page back and forth.
+   */
+  function testPageChangesWithArrows() {
+    // Right arrow -> Go to page 2.
+    MockInteractions.pressAndReleaseKeyOn(document, 39);
+    chrome.test.assertEq(1, getCurrentPage());
+
+    // Left arrow -> Back to page 1.
+    MockInteractions.pressAndReleaseKeyOn(document, 37);
+    chrome.test.assertEq(0, getCurrentPage());
+
+    resetDocument();
+    chrome.test.succeed();
+  },
+
+  /**
+   * Test that when a PDF form field is focused, the left/right shortcuts are
+   * disabled. This doesn't test the plugin side of this feature.
+   */
+  function testPageDoesntChangeWhenFormFocused() {
+    // This should be set by a message from plugin -> page when a field is
+    // focused.
+    window.viewer.isFormFieldFocused_ = true;
+
+    // Page should not change when left/right are pressed.
+    MockInteractions.pressAndReleaseKeyOn(document, 39);
+    chrome.test.assertEq(0, getCurrentPage());
+
+    MockInteractions.pressAndReleaseKeyOn(document, 37);
+    chrome.test.assertEq(0, getCurrentPage());
+
+    resetDocument();
+    chrome.test.succeed();
+  },
+
+  /**
+   * Test that when the document is in fit to page, pressing page up/page down
+   * changes page back/forth.
+   */
+  function testPageDownInFitPage() {
+    window.viewer.viewport.fitToPage();
+
+    // Page down -> Go to page 2.
+    MockInteractions.pressAndReleaseKeyOn(document, 34);
+    chrome.test.assertEq(1, getCurrentPage());
+
+    // Page up -> Back to page 1.
+    MockInteractions.pressAndReleaseKeyOn(document, 33);
+    chrome.test.assertEq(0, getCurrentPage());
+
+    resetDocument();
+    chrome.test.succeed();
+  }
+];
+
+importTestHelpers().then(function() {
+  chrome.test.runTests(tests);
+});