/*
 * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "public/web/WebView.h"

#include <limits>
#include <memory>
#include <string>

#include "bindings/core/v8/V8Document.h"
#include "build/build_config.h"
#include "core/dom/Document.h"
#include "core/dom/Element.h"
#include "core/dom/NodeComputedStyle.h"
#include "core/dom/UserGestureIndicator.h"
#include "core/editing/FrameSelection.h"
#include "core/editing/ime/InputMethodController.h"
#include "core/editing/markers/DocumentMarkerController.h"
#include "core/exported/FakeWebPlugin.h"
#include "core/exported/WebSettingsImpl.h"
#include "core/exported/WebViewImpl.h"
#include "core/frame/EventHandlerRegistry.h"
#include "core/frame/FrameTestHelpers.h"
#include "core/frame/LocalFrame.h"
#include "core/frame/LocalFrameView.h"
#include "core/frame/Settings.h"
#include "core/frame/VisualViewport.h"
#include "core/frame/WebLocalFrameImpl.h"
#include "core/fullscreen/Fullscreen.h"
#include "core/html/HTMLIFrameElement.h"
#include "core/html/HTMLObjectElement.h"
#include "core/html/forms/HTMLInputElement.h"
#include "core/html/forms/HTMLTextAreaElement.h"
#include "core/inspector/DevToolsEmulator.h"
#include "core/layout/api/LayoutViewItem.h"
#include "core/loader/DocumentLoader.h"
#include "core/loader/FrameLoadRequest.h"
#include "core/page/ChromeClient.h"
#include "core/page/FocusController.h"
#include "core/page/Page.h"
#include "core/page/PrintContext.h"
#include "core/page/ScopedPagePauser.h"
#include "core/paint/PaintLayer.h"
#include "core/paint/PaintLayerPainter.h"
#include "core/timing/DOMWindowPerformance.h"
#include "core/timing/Performance.h"
#include "platform/KeyboardCodes.h"
#include "platform/geometry/IntRect.h"
#include "platform/geometry/IntSize.h"
#include "platform/graphics/Color.h"
#include "platform/graphics/GraphicsContext.h"
#include "platform/graphics/GraphicsLayer.h"
#include "platform/graphics/paint/PaintRecordBuilder.h"
#include "platform/scroll/ScrollTypes.h"
#include "platform/testing/RuntimeEnabledFeaturesTestHelpers.h"
#include "platform/testing/URLTestHelpers.h"
#include "platform/testing/UnitTestHelpers.h"
#include "platform/wtf/PtrUtil.h"
#include "public/platform/Platform.h"
#include "public/platform/WebCoalescedInputEvent.h"
#include "public/platform/WebCursorInfo.h"
#include "public/platform/WebDisplayMode.h"
#include "public/platform/WebDragData.h"
#include "public/platform/WebDragOperation.h"
#include "public/platform/WebFloatPoint.h"
#include "public/platform/WebInputEvent.h"
#include "public/platform/WebKeyboardEvent.h"
#include "public/platform/WebLayerTreeView.h"
#include "public/platform/WebMockClipboard.h"
#include "public/platform/WebSize.h"
#include "public/platform/WebThread.h"
#include "public/platform/WebURLLoaderMockFactory.h"
#include "public/web/WebAutofillClient.h"
#include "public/web/WebConsoleMessage.h"
#include "public/web/WebDateTimeChooserCompletion.h"
#include "public/web/WebDeviceEmulationParams.h"
#include "public/web/WebDocument.h"
#include "public/web/WebElement.h"
#include "public/web/WebFrame.h"
#include "public/web/WebFrameClient.h"
#include "public/web/WebFrameContentDumper.h"
#include "public/web/WebHitTestResult.h"
#include "public/web/WebInputMethodController.h"
#include "public/web/WebPrintParams.h"
#include "public/web/WebScriptSource.h"
#include "public/web/WebSettings.h"
#include "public/web/WebTappedInfo.h"
#include "public/web/WebTreeScopeType.h"
#include "public/web/WebViewClient.h"
#include "public/web/WebWidget.h"
#include "public/web/WebWidgetClient.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkCanvas.h"

#if defined(OS_MACOSX)
#include "public/web/mac/WebSubstringUtil.h"
#endif

using blink::FrameTestHelpers::LoadFrame;
using blink::URLTestHelpers::ToKURL;
using blink::URLTestHelpers::RegisterMockedURLLoad;
using blink::testing::RunPendingTasks;

namespace blink {

enum HorizontalScrollbarState {
  kNoHorizontalScrollbar,
  kVisibleHorizontalScrollbar,
};

enum VerticalScrollbarState {
  kNoVerticalScrollbar,
  kVisibleVerticalScrollbar,
};

class TestData {
 public:
  void SetWebView(WebView* web_view) {
    web_view_ = static_cast<WebViewImpl*>(web_view);
  }
  void SetSize(const WebSize& new_size) { size_ = new_size; }
  HorizontalScrollbarState GetHorizontalScrollbarState() const {
    return web_view_->HasHorizontalScrollbar() ? kVisibleHorizontalScrollbar
                                               : kNoHorizontalScrollbar;
  }
  VerticalScrollbarState GetVerticalScrollbarState() const {
    return web_view_->HasVerticalScrollbar() ? kVisibleVerticalScrollbar
                                             : kNoVerticalScrollbar;
  }
  int Width() const { return size_.width; }
  int Height() const { return size_.height; }

 private:
  WebSize size_;
  WebViewImpl* web_view_;
};

class AutoResizeWebViewClient : public FrameTestHelpers::TestWebViewClient {
 public:
  // WebViewClient methods
  void DidAutoResize(const WebSize& new_size) override {
    test_data_.SetSize(new_size);
  }

  // Local methods
  TestData& GetTestData() { return test_data_; }

 private:
  TestData test_data_;
};

class TapHandlingWebViewClient : public FrameTestHelpers::TestWebViewClient {
 public:
  // WebViewClient methods
  void DidHandleGestureEvent(const WebGestureEvent& event,
                             bool event_cancelled) override {
    if (event.GetType() == WebInputEvent::kGestureTap) {
      tap_x_ = event.x;
      tap_y_ = event.y;
    } else if (event.GetType() == WebInputEvent::kGestureLongPress) {
      longpress_x_ = event.x;
      longpress_y_ = event.y;
    }
  }

  // Local methods
  void Reset() {
    tap_x_ = -1;
    tap_y_ = -1;
    longpress_x_ = -1;
    longpress_y_ = -1;
  }
  int TapX() { return tap_x_; }
  int TapY() { return tap_y_; }
  int LongpressX() { return longpress_x_; }
  int LongpressY() { return longpress_y_; }

 private:
  int tap_x_;
  int tap_y_;
  int longpress_x_;
  int longpress_y_;
};

class DateTimeChooserWebViewClient
    : public FrameTestHelpers::TestWebViewClient {
 public:
  WebDateTimeChooserCompletion* ChooserCompletion() {
    return chooser_completion_;
  }

  void ClearChooserCompletion() { chooser_completion_ = nullptr; }

  // WebViewClient methods
  bool OpenDateTimeChooser(
      const WebDateTimeChooserParams&,
      WebDateTimeChooserCompletion* chooser_completion) override {
    chooser_completion_ = chooser_completion;
    return true;
  }

 private:
  WebDateTimeChooserCompletion* chooser_completion_;
};

typedef bool TestParamRootLayerScrolling;
class WebViewTest
    : public ::testing::Test,
      public ::testing::WithParamInterface<TestParamRootLayerScrolling>,
      private ScopedRootLayerScrollingForTest {
 public:
  WebViewTest()
      : ScopedRootLayerScrollingForTest(GetParam()),
        base_url_("http://www.test.com/") {}

  void TearDown() override {
    Platform::Current()
        ->GetURLLoaderMockFactory()
        ->UnregisterAllURLsAndClearMemoryCache();
  }

 protected:
  void SetViewportSize(const WebSize& size) {
    web_view_helper_.SetViewportSize(size);
  }

  std::string RegisterMockedHttpURLLoad(const std::string& file_name) {
    return URLTestHelpers::RegisterMockedURLLoadFromBase(
               WebString::FromUTF8(base_url_), testing::CoreTestDataPath(),
               WebString::FromUTF8(file_name))
        .GetString()
        .Utf8();
  }

  void TestAutoResize(const WebSize& min_auto_resize,
                      const WebSize& max_auto_resize,
                      const std::string& page_width,
                      const std::string& page_height,
                      int expected_width,
                      int expected_height,
                      HorizontalScrollbarState expected_horizontal_state,
                      VerticalScrollbarState expected_vertical_state);

  void TestTextInputType(WebTextInputType expected_type,
                         const std::string& html_file);
  void TestInputMode(WebTextInputMode expected_input_mode,
                     const std::string& html_file);
  bool TapElement(WebInputEvent::Type, Element*);
  bool TapElementById(WebInputEvent::Type, const WebString& id);
  IntSize PrintICBSizeFromPageSize(const FloatSize& page_size);

  std::string base_url_;
  FrameTestHelpers::WebViewHelper web_view_helper_;
};

static bool HitTestIsContentEditable(WebView* view, int x, int y) {
  WebPoint hit_point(x, y);
  WebHitTestResult hit_test_result = view->HitTestResultAt(hit_point);
  return hit_test_result.IsContentEditable();
}

static std::string HitTestElementId(WebView* view, int x, int y) {
  WebPoint hit_point(x, y);
  WebHitTestResult hit_test_result = view->HitTestResultAt(hit_point);
  return hit_test_result.GetNode().To<WebElement>().GetAttribute("id").Utf8();
}

INSTANTIATE_TEST_CASE_P(All, WebViewTest, ::testing::Bool());

TEST_P(WebViewTest, HitTestVideo) {
  // Test that hit tests on parts of a video element result in hits on the video
  // element itself as opposed to its child elements.
  std::string url = RegisterMockedHttpURLLoad("video_200x200.html");
  WebView* web_view = web_view_helper_.InitializeAndLoad(url);
  web_view->Resize(WebSize(200, 200));

  // Center of video.
  EXPECT_EQ("video", HitTestElementId(web_view, 100, 100));

  // Play button.
  EXPECT_EQ("video", HitTestElementId(web_view, 10, 195));

  // Timeline bar.
  EXPECT_EQ("video", HitTestElementId(web_view, 100, 195));
}

TEST_P(WebViewTest, HitTestContentEditableImageMaps) {
  std::string url =
      RegisterMockedHttpURLLoad("content-editable-image-maps.html");
  WebView* web_view = web_view_helper_.InitializeAndLoad(url);
  web_view->Resize(WebSize(500, 500));

  EXPECT_EQ("areaANotEditable", HitTestElementId(web_view, 25, 25));
  EXPECT_FALSE(HitTestIsContentEditable(web_view, 25, 25));
  EXPECT_EQ("imageANotEditable", HitTestElementId(web_view, 75, 25));
  EXPECT_FALSE(HitTestIsContentEditable(web_view, 75, 25));

  EXPECT_EQ("areaBNotEditable", HitTestElementId(web_view, 25, 125));
  EXPECT_FALSE(HitTestIsContentEditable(web_view, 25, 125));
  EXPECT_EQ("imageBEditable", HitTestElementId(web_view, 75, 125));
  EXPECT_TRUE(HitTestIsContentEditable(web_view, 75, 125));

  EXPECT_EQ("areaCNotEditable", HitTestElementId(web_view, 25, 225));
  EXPECT_FALSE(HitTestIsContentEditable(web_view, 25, 225));
  EXPECT_EQ("imageCNotEditable", HitTestElementId(web_view, 75, 225));
  EXPECT_FALSE(HitTestIsContentEditable(web_view, 75, 225));

  EXPECT_EQ("areaDEditable", HitTestElementId(web_view, 25, 325));
  EXPECT_TRUE(HitTestIsContentEditable(web_view, 25, 325));
  EXPECT_EQ("imageDNotEditable", HitTestElementId(web_view, 75, 325));
  EXPECT_FALSE(HitTestIsContentEditable(web_view, 75, 325));
}

static std::string HitTestAbsoluteUrl(WebView* view, int x, int y) {
  WebPoint hit_point(x, y);
  WebHitTestResult hit_test_result = view->HitTestResultAt(hit_point);
  return hit_test_result.AbsoluteImageURL().GetString().Utf8();
}

static WebElement HitTestUrlElement(WebView* view, int x, int y) {
  WebPoint hit_point(x, y);
  WebHitTestResult hit_test_result = view->HitTestResultAt(hit_point);
  return hit_test_result.UrlElement();
}

TEST_P(WebViewTest, ImageMapUrls) {
  std::string url = RegisterMockedHttpURLLoad("image-map.html");
  WebView* web_view = web_view_helper_.InitializeAndLoad(url);
  web_view->Resize(WebSize(400, 400));

  std::string image_url =
      "data:image/gif;base64,R0lGODlhAQABAIAAAAUEBAAAACwAAAAAAQABAAACAkQBADs=";

  EXPECT_EQ("area", HitTestElementId(web_view, 25, 25));
  EXPECT_EQ("area",
            HitTestUrlElement(web_view, 25, 25).GetAttribute("id").Utf8());
  EXPECT_EQ(image_url, HitTestAbsoluteUrl(web_view, 25, 25));

  EXPECT_EQ("image", HitTestElementId(web_view, 75, 25));
  EXPECT_TRUE(HitTestUrlElement(web_view, 75, 25).IsNull());
  EXPECT_EQ(image_url, HitTestAbsoluteUrl(web_view, 75, 25));
}

TEST_P(WebViewTest, BrokenImage) {
  URLTestHelpers::RegisterMockedErrorURLLoad(
      KURL(ToKURL(base_url_), "non_existent.png"));
  std::string url = RegisterMockedHttpURLLoad("image-broken.html");

  WebViewImpl* web_view = web_view_helper_.Initialize();
  web_view->GetSettings()->SetLoadsImagesAutomatically(true);
  LoadFrame(web_view->MainFrameImpl(), url);
  web_view->Resize(WebSize(400, 400));

  std::string image_url = "http://www.test.com/non_existent.png";

  EXPECT_EQ("image", HitTestElementId(web_view, 25, 25));
  EXPECT_TRUE(HitTestUrlElement(web_view, 25, 25).IsNull());
  EXPECT_EQ(image_url, HitTestAbsoluteUrl(web_view, 25, 25));
}

TEST_P(WebViewTest, BrokenInputImage) {
  URLTestHelpers::RegisterMockedErrorURLLoad(
      KURL(ToKURL(base_url_), "non_existent.png"));
  std::string url = RegisterMockedHttpURLLoad("input-image-broken.html");

  WebViewImpl* web_view = web_view_helper_.Initialize();
  web_view->GetSettings()->SetLoadsImagesAutomatically(true);
  LoadFrame(web_view->MainFrameImpl(), url);
  web_view->Resize(WebSize(400, 400));

  std::string image_url = "http://www.test.com/non_existent.png";

  EXPECT_EQ("image", HitTestElementId(web_view, 25, 25));
  EXPECT_TRUE(HitTestUrlElement(web_view, 25, 25).IsNull());
  EXPECT_EQ(image_url, HitTestAbsoluteUrl(web_view, 25, 25));
}

TEST_P(WebViewTest, SetBaseBackgroundColor) {
  const WebColor kWhite = 0xFFFFFFFF;
  const WebColor kBlue = 0xFF0000FF;
  const WebColor kDarkCyan = 0xFF227788;
  const WebColor kTranslucentPutty = 0x80BFB196;
  const WebColor kTransparent = 0x00000000;

  WebViewImpl* web_view = web_view_helper_.Initialize();
  EXPECT_EQ(kWhite, web_view->BackgroundColor());

  web_view->SetBaseBackgroundColor(kBlue);
  EXPECT_EQ(kBlue, web_view->BackgroundColor());

  WebURL base_url = URLTestHelpers::ToKURL("http://example.com/");
  FrameTestHelpers::LoadHTMLString(web_view->MainFrameImpl(),
                                   "<html><head><style>body "
                                   "{background-color:#227788}</style></head></"
                                   "html>",
                                   base_url);
  EXPECT_EQ(kDarkCyan, web_view->BackgroundColor());

  FrameTestHelpers::LoadHTMLString(web_view->MainFrameImpl(),
                                   "<html><head><style>body "
                                   "{background-color:rgba(255,0,0,0.5)}</"
                                   "style></head></html>",
                                   base_url);
  // Expected: red (50% alpha) blended atop base of kBlue.
  EXPECT_EQ(0xFF80007F, web_view->BackgroundColor());

  web_view->SetBaseBackgroundColor(kTranslucentPutty);
  // Expected: red (50% alpha) blended atop kTranslucentPutty. Note the alpha.
  EXPECT_EQ(0xBFE93A31, web_view->BackgroundColor());

  web_view->SetBaseBackgroundColor(kTransparent);
  FrameTestHelpers::LoadHTMLString(web_view->MainFrameImpl(),
                                   "<html><head><style>body "
                                   "{background-color:transparent}</style></"
                                   "head></html>",
                                   base_url);
  // Expected: transparent on top of kTransparent will still be transparent.
  EXPECT_EQ(kTransparent, web_view->BackgroundColor());

  LocalFrame* frame = web_view->MainFrameImpl()->GetFrame();
  // The shutdown() calls are a hack to prevent this test
  // from violating invariants about frame state during navigation/detach.
  frame->GetDocument()->Shutdown();

  // Creating a new frame view with the background color having 0 alpha.
  frame->CreateView(IntSize(1024, 768), Color::kTransparent);
  EXPECT_EQ(kTransparent, frame->View()->BaseBackgroundColor());
  frame->View()->Dispose();

  const Color transparent_red(100, 0, 0, 0);
  frame->CreateView(IntSize(1024, 768), transparent_red);
  EXPECT_EQ(transparent_red, frame->View()->BaseBackgroundColor());
  frame->View()->Dispose();
}

TEST_P(WebViewTest, SetBaseBackgroundColorBeforeMainFrame) {
  // Note: this test doesn't use WebViewHelper since it intentionally runs
  // initialization code between WebView and WebLocalFrame creation.
  const WebColor kBlue = 0xFF0000FF;
  FrameTestHelpers::TestWebViewClient web_view_client;
  WebViewImpl* web_view = static_cast<WebViewImpl*>(
      WebView::Create(&web_view_client, kWebPageVisibilityStateVisible));
  EXPECT_NE(kBlue, web_view->BackgroundColor());
  // webView does not have a frame yet, but we should still be able to set the
  // background color.
  web_view->SetBaseBackgroundColor(kBlue);
  EXPECT_EQ(kBlue, web_view->BackgroundColor());
  FrameTestHelpers::TestWebFrameClient web_frame_client;
  WebLocalFrame* frame = WebLocalFrame::CreateMainFrame(
      web_view, &web_frame_client, nullptr, nullptr);
  web_frame_client.Bind(frame);
  web_view->Close();
}

TEST_P(WebViewTest, SetBaseBackgroundColorAndBlendWithExistingContent) {
  const WebColor kAlphaRed = 0x80FF0000;
  const WebColor kAlphaGreen = 0x8000FF00;
  const int kWidth = 100;
  const int kHeight = 100;

  WebViewImpl* web_view = web_view_helper_.Initialize();

  // Set WebView background to green with alpha.
  web_view->SetBaseBackgroundColor(kAlphaGreen);
  web_view->GetSettings()->SetShouldClearDocumentBackground(false);
  web_view->Resize(WebSize(kWidth, kHeight));
  web_view->UpdateAllLifecyclePhases();

  // Set canvas background to red with alpha.
  SkBitmap bitmap;
  bitmap.allocN32Pixels(kWidth, kHeight);
  SkCanvas canvas(bitmap);
  canvas.clear(kAlphaRed);

  PaintRecordBuilder builder(FloatRect(0, 0, kWidth, kHeight));

  // Paint the root of the main frame in the way that CompositedLayerMapping
  // would.
  LocalFrameView* view = web_view_helper_.LocalMainFrame()->GetFrameView();
  PaintLayer* root_layer = view->GetLayoutViewItem().Layer();
  LayoutRect paint_rect(0, 0, kWidth, kHeight);
  PaintLayerPaintingInfo painting_info(root_layer, paint_rect,
                                       kGlobalPaintNormalPhase, LayoutSize());

  view->GetLayoutView()->GetDocument().Lifecycle().AdvanceTo(
      DocumentLifecycle::kInPaint);
  PaintLayerPainter(*root_layer)
      .PaintLayerContents(builder.Context(), painting_info,
                          kPaintLayerPaintingCompositingAllPhases);
  view->GetLayoutView()->GetDocument().Lifecycle().AdvanceTo(
      DocumentLifecycle::kPaintClean);
  builder.EndRecording()->Playback(&canvas);

  // The result should be a blend of red and green.
  SkColor color = bitmap.getColor(kWidth / 2, kHeight / 2);
  EXPECT_TRUE(RedChannel(color));
  EXPECT_TRUE(GreenChannel(color));
}

TEST_P(WebViewTest, FocusIsInactive) {
  RegisterMockedHttpURLLoad("visible_iframe.html");
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "visible_iframe.html");

  web_view->SetFocus(true);
  web_view->SetIsActive(true);
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  EXPECT_TRUE(frame->GetFrame()->GetDocument()->IsHTMLDocument());

  Document* document = frame->GetFrame()->GetDocument();
  EXPECT_TRUE(document->hasFocus());
  web_view->SetFocus(false);
  web_view->SetIsActive(false);
  EXPECT_FALSE(document->hasFocus());
  web_view->SetFocus(true);
  web_view->SetIsActive(true);
  EXPECT_TRUE(document->hasFocus());
  web_view->SetFocus(true);
  web_view->SetIsActive(false);
  EXPECT_FALSE(document->hasFocus());
  web_view->SetFocus(false);
  web_view->SetIsActive(true);
  EXPECT_FALSE(document->hasFocus());
}

TEST_P(WebViewTest, ActiveState) {
  RegisterMockedHttpURLLoad("visible_iframe.html");
  WebView* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "visible_iframe.html");

  ASSERT_TRUE(web_view);

  web_view->SetIsActive(true);
  EXPECT_TRUE(web_view->IsActive());

  web_view->SetIsActive(false);
  EXPECT_FALSE(web_view->IsActive());

  web_view->SetIsActive(true);
  EXPECT_TRUE(web_view->IsActive());
}

TEST_P(WebViewTest, HitTestResultAtWithPageScale) {
  std::string url = base_url_ + "specify_size.html?" + "50px" + ":" + "50px";
  URLTestHelpers::RegisterMockedURLLoad(
      ToKURL(url), testing::CoreTestDataPath("specify_size.html"));
  WebView* web_view = web_view_helper_.InitializeAndLoad(url);
  web_view->Resize(WebSize(100, 100));
  WebPoint hit_point(75, 75);

  // Image is at top left quandrant, so should not hit it.
  WebHitTestResult negative_result = web_view->HitTestResultAt(hit_point);
  EXPECT_FALSE(
      negative_result.GetNode().To<WebElement>().HasHTMLTagName("img"));
  negative_result.Reset();

  // Scale page up 2x so image should occupy the whole viewport.
  web_view->SetPageScaleFactor(2.0f);
  WebHitTestResult positive_result = web_view->HitTestResultAt(hit_point);
  EXPECT_TRUE(positive_result.GetNode().To<WebElement>().HasHTMLTagName("img"));
  positive_result.Reset();
}

TEST_P(WebViewTest, HitTestResultAtWithPageScaleAndPan) {
  std::string url = base_url_ + "specify_size.html?" + "50px" + ":" + "50px";
  URLTestHelpers::RegisterMockedURLLoad(
      ToKURL(url), testing::CoreTestDataPath("specify_size.html"));
  WebViewImpl* web_view = web_view_helper_.Initialize();
  LoadFrame(web_view->MainFrameImpl(), url);
  web_view->Resize(WebSize(100, 100));
  WebPoint hit_point(75, 75);

  // Image is at top left quandrant, so should not hit it.
  WebHitTestResult negative_result = web_view->HitTestResultAt(hit_point);
  EXPECT_FALSE(
      negative_result.GetNode().To<WebElement>().HasHTMLTagName("img"));
  negative_result.Reset();

  // Scale page up 2x so image should occupy the whole viewport.
  web_view->SetPageScaleFactor(2.0f);
  WebHitTestResult positive_result = web_view->HitTestResultAt(hit_point);
  EXPECT_TRUE(positive_result.GetNode().To<WebElement>().HasHTMLTagName("img"));
  positive_result.Reset();

  // Pan around the zoomed in page so the image is not visible in viewport.
  web_view->SetVisualViewportOffset(WebFloatPoint(100, 100));
  WebHitTestResult negative_result2 = web_view->HitTestResultAt(hit_point);
  EXPECT_FALSE(
      negative_result2.GetNode().To<WebElement>().HasHTMLTagName("img"));
  negative_result2.Reset();
}

TEST_P(WebViewTest, HitTestResultForTapWithTapArea) {
  std::string url = RegisterMockedHttpURLLoad("hit_test.html");
  WebView* web_view = web_view_helper_.InitializeAndLoad(url);
  web_view->Resize(WebSize(100, 100));
  WebPoint hit_point(55, 55);

  // Image is at top left quandrant, so should not hit it.
  WebHitTestResult negative_result = web_view->HitTestResultAt(hit_point);
  EXPECT_FALSE(
      negative_result.GetNode().To<WebElement>().HasHTMLTagName("img"));
  negative_result.Reset();

  // The tap area is 20 by 20 square, centered at 55, 55.
  WebSize tap_area(20, 20);
  WebHitTestResult positive_result =
      web_view->HitTestResultForTap(hit_point, tap_area);
  EXPECT_TRUE(positive_result.GetNode().To<WebElement>().HasHTMLTagName("img"));
  positive_result.Reset();

  // Move the hit point the image is just outside the tapped area now.
  hit_point = WebPoint(61, 61);
  WebHitTestResult negative_result2 =
      web_view->HitTestResultForTap(hit_point, tap_area);
  EXPECT_FALSE(
      negative_result2.GetNode().To<WebElement>().HasHTMLTagName("img"));
  negative_result2.Reset();
}

TEST_P(WebViewTest, HitTestResultForTapWithTapAreaPageScaleAndPan) {
  std::string url = RegisterMockedHttpURLLoad("hit_test.html");
  WebViewImpl* web_view = web_view_helper_.Initialize();
  LoadFrame(web_view->MainFrameImpl(), url);
  web_view->Resize(WebSize(100, 100));
  WebPoint hit_point(55, 55);

  // Image is at top left quandrant, so should not hit it.
  WebHitTestResult negative_result = web_view->HitTestResultAt(hit_point);
  EXPECT_FALSE(
      negative_result.GetNode().To<WebElement>().HasHTMLTagName("img"));
  negative_result.Reset();

  // The tap area is 20 by 20 square, centered at 55, 55.
  WebSize tap_area(20, 20);
  WebHitTestResult positive_result =
      web_view->HitTestResultForTap(hit_point, tap_area);
  EXPECT_TRUE(positive_result.GetNode().To<WebElement>().HasHTMLTagName("img"));
  positive_result.Reset();

  // Zoom in and pan around the page so the image is not visible in viewport.
  web_view->SetPageScaleFactor(2.0f);
  web_view->SetVisualViewportOffset(WebFloatPoint(100, 100));
  WebHitTestResult negative_result2 =
      web_view->HitTestResultForTap(hit_point, tap_area);
  EXPECT_FALSE(
      negative_result2.GetNode().To<WebElement>().HasHTMLTagName("img"));
  negative_result2.Reset();
}

void WebViewTest::TestAutoResize(
    const WebSize& min_auto_resize,
    const WebSize& max_auto_resize,
    const std::string& page_width,
    const std::string& page_height,
    int expected_width,
    int expected_height,
    HorizontalScrollbarState expected_horizontal_state,
    VerticalScrollbarState expected_vertical_state) {
  AutoResizeWebViewClient client;
  std::string url =
      base_url_ + "specify_size.html?" + page_width + ":" + page_height;
  URLTestHelpers::RegisterMockedURLLoad(
      ToKURL(url), testing::CoreTestDataPath("specify_size.html"));
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(url, nullptr, &client);
  client.GetTestData().SetWebView(web_view);

  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  LocalFrameView* frame_view = frame->GetFrame()->View();
  frame_view->UpdateLayout();
  EXPECT_FALSE(frame_view->LayoutPending());
  EXPECT_FALSE(frame_view->NeedsLayout());

  web_view->EnableAutoResizeMode(min_auto_resize, max_auto_resize);
  EXPECT_TRUE(frame_view->LayoutPending());
  EXPECT_TRUE(frame_view->NeedsLayout());
  frame_view->UpdateLayout();

  EXPECT_TRUE(frame->GetFrame()->GetDocument()->IsHTMLDocument());

  EXPECT_EQ(expected_width, client.GetTestData().Width());
  EXPECT_EQ(expected_height, client.GetTestData().Height());

// Android disables main frame scrollbars.
#if !defined(OS_ANDROID)
  EXPECT_EQ(expected_horizontal_state,
            client.GetTestData().GetHorizontalScrollbarState());
  EXPECT_EQ(expected_vertical_state,
            client.GetTestData().GetVerticalScrollbarState());
#endif

  // Explicitly reset to break dependency on locally scoped client.
  web_view_helper_.Reset();
}

TEST_P(WebViewTest, AutoResizeMinimumSize) {
  WebSize min_auto_resize(91, 56);
  WebSize max_auto_resize(403, 302);
  std::string page_width = "91px";
  std::string page_height = "56px";
  int expected_width = 91;
  int expected_height = 56;
  TestAutoResize(min_auto_resize, max_auto_resize, page_width, page_height,
                 expected_width, expected_height, kNoHorizontalScrollbar,
                 kNoVerticalScrollbar);
}

TEST_P(WebViewTest, AutoResizeHeightOverflowAndFixedWidth) {
  WebSize min_auto_resize(90, 95);
  WebSize max_auto_resize(90, 100);
  std::string page_width = "60px";
  std::string page_height = "200px";
  int expected_width = 90;
  int expected_height = 100;
  TestAutoResize(min_auto_resize, max_auto_resize, page_width, page_height,
                 expected_width, expected_height, kNoHorizontalScrollbar,
                 kVisibleVerticalScrollbar);
}

TEST_P(WebViewTest, AutoResizeFixedHeightAndWidthOverflow) {
  WebSize min_auto_resize(90, 100);
  WebSize max_auto_resize(200, 100);
  std::string page_width = "300px";
  std::string page_height = "80px";
  int expected_width = 200;
  int expected_height = 100;
  TestAutoResize(min_auto_resize, max_auto_resize, page_width, page_height,
                 expected_width, expected_height, kVisibleHorizontalScrollbar,
                 kNoVerticalScrollbar);
}

// Next three tests disabled for https://bugs.webkit.org/show_bug.cgi?id=92318 .
// It seems we can run three AutoResize tests, then the next one breaks.
TEST_P(WebViewTest, AutoResizeInBetweenSizes) {
  WebSize min_auto_resize(90, 95);
  WebSize max_auto_resize(200, 300);
  std::string page_width = "100px";
  std::string page_height = "200px";
  int expected_width = 100;
  int expected_height = 200;
  TestAutoResize(min_auto_resize, max_auto_resize, page_width, page_height,
                 expected_width, expected_height, kNoHorizontalScrollbar,
                 kNoVerticalScrollbar);
}

TEST_P(WebViewTest, AutoResizeOverflowSizes) {
  WebSize min_auto_resize(90, 95);
  WebSize max_auto_resize(200, 300);
  std::string page_width = "300px";
  std::string page_height = "400px";
  int expected_width = 200;
  int expected_height = 300;
  TestAutoResize(min_auto_resize, max_auto_resize, page_width, page_height,
                 expected_width, expected_height, kVisibleHorizontalScrollbar,
                 kVisibleVerticalScrollbar);
}

TEST_P(WebViewTest, AutoResizeMaxSize) {
  WebSize min_auto_resize(90, 95);
  WebSize max_auto_resize(200, 300);
  std::string page_width = "200px";
  std::string page_height = "300px";
  int expected_width = 200;
  int expected_height = 300;
  TestAutoResize(min_auto_resize, max_auto_resize, page_width, page_height,
                 expected_width, expected_height, kNoHorizontalScrollbar,
                 kNoVerticalScrollbar);
}

void WebViewTest::TestTextInputType(WebTextInputType expected_type,
                                    const std::string& html_file) {
  RegisterMockedHttpURLLoad(html_file);
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + html_file);
  WebInputMethodController* controller =
      web_view->MainFrameImpl()->GetInputMethodController();
  EXPECT_EQ(kWebTextInputTypeNone, controller->TextInputType());
  EXPECT_EQ(kWebTextInputTypeNone, controller->TextInputInfo().type);
  web_view->SetInitialFocus(false);
  EXPECT_EQ(expected_type, controller->TextInputType());
  EXPECT_EQ(expected_type, controller->TextInputInfo().type);
  web_view->ClearFocusedElement();
  EXPECT_EQ(kWebTextInputTypeNone, controller->TextInputType());
  EXPECT_EQ(kWebTextInputTypeNone, controller->TextInputInfo().type);
}

TEST_P(WebViewTest, TextInputType) {
  TestTextInputType(kWebTextInputTypeText, "input_field_default.html");
  TestTextInputType(kWebTextInputTypePassword, "input_field_password.html");
  TestTextInputType(kWebTextInputTypeEmail, "input_field_email.html");
  TestTextInputType(kWebTextInputTypeSearch, "input_field_search.html");
  TestTextInputType(kWebTextInputTypeNumber, "input_field_number.html");
  TestTextInputType(kWebTextInputTypeTelephone, "input_field_tel.html");
  TestTextInputType(kWebTextInputTypeURL, "input_field_url.html");
}

TEST_P(WebViewTest, TextInputInfoUpdateStyleAndLayout) {
  FrameTestHelpers::WebViewHelper web_view_helper;
  WebViewImpl* web_view_impl = web_view_helper.Initialize();

  WebURL base_url = URLTestHelpers::ToKURL("http://example.com/");
  // Here, we need to construct a document that has a special property:
  // Adding id="foo" to the <path> element will trigger creation of an SVG
  // instance tree for the use <use> element.
  // This is significant, because SVG instance trees are actually created lazily
  // during Document::updateStyleAndLayout code, thus incrementing the DOM tree
  // version and freaking out the EphemeralRange (invalidating it).
  FrameTestHelpers::LoadHTMLString(
      web_view_impl->MainFrameImpl(),
      "<svg height='100%' version='1.1' viewBox='0 0 14 14' width='100%'>"
      "<use xmlns:xlink='http://www.w3.org/1999/xlink' xlink:href='#foo'></use>"
      "<path d='M 100 100 L 300 100 L 200 300 z' fill='#000'></path>"
      "</svg>"
      "<input>",
      base_url);
  web_view_impl->SetInitialFocus(false);

  // Add id="foo" to <path>, thus triggering the condition described above.
  Document* document =
      web_view_impl->MainFrameImpl()->GetFrame()->GetDocument();
  document->body()
      ->QuerySelector("path", ASSERT_NO_EXCEPTION)
      ->SetIdAttribute("foo");

  // This should not DCHECK.
  EXPECT_EQ(kWebTextInputTypeText, web_view_impl->MainFrameImpl()
                                       ->GetInputMethodController()
                                       ->TextInputInfo()
                                       .type);
}

void WebViewTest::TestInputMode(WebTextInputMode expected_input_mode,
                                const std::string& html_file) {
  RegisterMockedHttpURLLoad(html_file);
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(base_url_ + html_file);
  web_view_impl->SetInitialFocus(false);
  EXPECT_EQ(expected_input_mode, web_view_impl->MainFrameImpl()
                                     ->GetInputMethodController()
                                     ->TextInputInfo()
                                     .input_mode);
}

TEST_P(WebViewTest, InputMode) {
  TestInputMode(WebTextInputMode::kWebTextInputModeDefault,
                "input_mode_default.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeDefault,
                "input_mode_default_unknown.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeVerbatim,
                "input_mode_default_verbatim.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeVerbatim,
                "input_mode_type_text_verbatim.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeVerbatim,
                "input_mode_type_search_verbatim.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeDefault,
                "input_mode_type_url_verbatim.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeLatin,
                "input_mode_type_latin.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeLatinName,
                "input_mode_type_latin_name.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeLatinProse,
                "input_mode_type_latin_prose.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeFullWidthLatin,
                "input_mode_type_full_width_latin.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeKana,
                "input_mode_type_kana.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeKanaName,
                "input_mode_type_kana_name.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeKataKana,
                "input_mode_type_kata_kana.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeNumeric,
                "input_mode_type_numeric.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeTel,
                "input_mode_type_tel.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeEmail,
                "input_mode_type_email.html");
  TestInputMode(WebTextInputMode::kWebTextInputModeUrl,
                "input_mode_type_url.html");
}

TEST_P(WebViewTest, TextInputInfoWithReplacedElements) {
  std::string url = RegisterMockedHttpURLLoad("div_with_image.html");
  URLTestHelpers::RegisterMockedURLLoad(
      ToKURL("http://www.test.com/foo.png"),
      testing::CoreTestDataPath("white-1x1.png"));
  WebViewImpl* web_view_impl = web_view_helper_.InitializeAndLoad(url);
  web_view_impl->SetInitialFocus(false);
  WebTextInputInfo info = web_view_impl->MainFrameImpl()
                              ->GetInputMethodController()
                              ->TextInputInfo();

  EXPECT_EQ("foo\xef\xbf\xbc", info.value.Utf8());
}

TEST_P(WebViewTest, SetEditableSelectionOffsetsAndTextInputInfo) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  web_view->SetInitialFocus(false);
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  WebInputMethodController* active_input_method_controller =
      frame->GetInputMethodController();
  frame->SetEditableSelectionOffsets(5, 13);
  EXPECT_EQ("56789abc", frame->SelectionAsText());
  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("0123456789abcdefghijklmnopqrstuvwxyz", info.value);
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(13, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  RegisterMockedHttpURLLoad("content_editable_populated.html");
  web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "content_editable_populated.html");
  web_view->SetInitialFocus(false);
  frame = web_view->MainFrameImpl();
  active_input_method_controller = frame->GetInputMethodController();
  frame->SetEditableSelectionOffsets(8, 19);
  EXPECT_EQ("89abcdefghi", frame->SelectionAsText());
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("0123456789abcdefghijklmnopqrstuvwxyz", info.value);
  EXPECT_EQ(8, info.selection_start);
  EXPECT_EQ(19, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);
}

// Regression test for crbug.com/663645
TEST_P(WebViewTest, FinishComposingTextDoesNotAssert) {
  RegisterMockedHttpURLLoad("input_field_default.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_default.html");
  web_view->SetInitialFocus(false);

  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();

  // The test requires non-empty composition.
  std::string composition_text("hello");
  WebVector<WebImeTextSpan> empty_ime_text_spans;
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 5, 5);

  // Do arbitrary change to make layout dirty.
  Document& document = *web_view->MainFrameImpl()->GetFrame()->GetDocument();
  Element* br = document.createElement("br");
  document.body()->AppendChild(br);

  // Should not hit assertion when calling
  // WebInputMethodController::finishComposingText with non-empty composition
  // and dirty layout.
  active_input_method_controller->FinishComposingText(
      WebInputMethodController::kKeepSelection);
}

TEST_P(WebViewTest, FinishComposingTextCursorPositionChange) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  web_view->SetInitialFocus(false);

  // Set up a composition that needs to be committed.
  std::string composition_text("hello");

  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();
  WebVector<WebImeTextSpan> empty_ime_text_spans;
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 3, 3);

  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello", std::string(info.value.Utf8().data()));
  EXPECT_EQ(3, info.selection_start);
  EXPECT_EQ(3, info.selection_end);
  EXPECT_EQ(0, info.composition_start);
  EXPECT_EQ(5, info.composition_end);

  active_input_method_controller->FinishComposingText(
      WebInputMethodController::kKeepSelection);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(3, info.selection_start);
  EXPECT_EQ(3, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 3, 3);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helhellolo", std::string(info.value.Utf8().data()));
  EXPECT_EQ(6, info.selection_start);
  EXPECT_EQ(6, info.selection_end);
  EXPECT_EQ(3, info.composition_start);
  EXPECT_EQ(8, info.composition_end);

  active_input_method_controller->FinishComposingText(
      WebInputMethodController::kDoNotKeepSelection);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(8, info.selection_start);
  EXPECT_EQ(8, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);
}

TEST_P(WebViewTest, SetCompositionForNewCaretPositions) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  web_view->SetInitialFocus(false);
  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();

  WebVector<WebImeTextSpan> empty_ime_text_spans;

  active_input_method_controller->CommitText("hello", empty_ime_text_spans,
                                             WebRange(), 0);
  active_input_method_controller->CommitText("world", empty_ime_text_spans,
                                             WebRange(), -5);
  WebTextInputInfo info = active_input_method_controller->TextInputInfo();

  EXPECT_EQ("helloworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(5, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  // Set up a composition that needs to be committed.
  std::string composition_text("ABC");

  // Caret is on the left of composing text.
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 0, 0);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloABCworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(5, info.selection_end);
  EXPECT_EQ(5, info.composition_start);
  EXPECT_EQ(8, info.composition_end);

  // Caret is on the right of composing text.
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 3, 3);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloABCworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(8, info.selection_start);
  EXPECT_EQ(8, info.selection_end);
  EXPECT_EQ(5, info.composition_start);
  EXPECT_EQ(8, info.composition_end);

  // Caret is between composing text and left boundary.
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), -2, -2);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloABCworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(3, info.selection_start);
  EXPECT_EQ(3, info.selection_end);
  EXPECT_EQ(5, info.composition_start);
  EXPECT_EQ(8, info.composition_end);

  // Caret is between composing text and right boundary.
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 5, 5);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloABCworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(10, info.selection_start);
  EXPECT_EQ(10, info.selection_end);
  EXPECT_EQ(5, info.composition_start);
  EXPECT_EQ(8, info.composition_end);

  // Caret is on the left boundary.
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), -5, -5);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloABCworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ(0, info.selection_end);
  EXPECT_EQ(5, info.composition_start);
  EXPECT_EQ(8, info.composition_end);

  // Caret is on the right boundary.
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 8, 8);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloABCworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(13, info.selection_start);
  EXPECT_EQ(13, info.selection_end);
  EXPECT_EQ(5, info.composition_start);
  EXPECT_EQ(8, info.composition_end);

  // Caret exceeds the left boundary.
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), -100, -100);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloABCworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ(0, info.selection_end);
  EXPECT_EQ(5, info.composition_start);
  EXPECT_EQ(8, info.composition_end);

  // Caret exceeds the right boundary.
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 100, 100);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloABCworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(13, info.selection_start);
  EXPECT_EQ(13, info.selection_end);
  EXPECT_EQ(5, info.composition_start);
  EXPECT_EQ(8, info.composition_end);
}

TEST_P(WebViewTest, SetCompositionWithEmptyText) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  web_view->SetInitialFocus(false);
  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();

  WebVector<WebImeTextSpan> empty_ime_text_spans;

  active_input_method_controller->CommitText("hello", empty_ime_text_spans,
                                             WebRange(), 0);
  WebTextInputInfo info = active_input_method_controller->TextInputInfo();

  EXPECT_EQ("hello", std::string(info.value.Utf8().data()));
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(5, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  active_input_method_controller->SetComposition(
      WebString::FromUTF8(""), empty_ime_text_spans, WebRange(), 0, 0);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello", std::string(info.value.Utf8().data()));
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(5, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  active_input_method_controller->SetComposition(
      WebString::FromUTF8(""), empty_ime_text_spans, WebRange(), -2, -2);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello", std::string(info.value.Utf8().data()));
  EXPECT_EQ(3, info.selection_start);
  EXPECT_EQ(3, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);
}

TEST_P(WebViewTest, CommitTextForNewCaretPositions) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  web_view->SetInitialFocus(false);
  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();

  WebVector<WebImeTextSpan> empty_ime_text_spans;

  // Caret is on the left of composing text.
  active_input_method_controller->CommitText("ab", empty_ime_text_spans,
                                             WebRange(), -2);
  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("ab", std::string(info.value.Utf8().data()));
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ(0, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  // Caret is on the right of composing text.
  active_input_method_controller->CommitText("c", empty_ime_text_spans,
                                             WebRange(), 1);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("cab", std::string(info.value.Utf8().data()));
  EXPECT_EQ(2, info.selection_start);
  EXPECT_EQ(2, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  // Caret is on the left boundary.
  active_input_method_controller->CommitText("def", empty_ime_text_spans,
                                             WebRange(), -5);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("cadefb", std::string(info.value.Utf8().data()));
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ(0, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  // Caret is on the right boundary.
  active_input_method_controller->CommitText("g", empty_ime_text_spans,
                                             WebRange(), 6);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("gcadefb", std::string(info.value.Utf8().data()));
  EXPECT_EQ(7, info.selection_start);
  EXPECT_EQ(7, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  // Caret exceeds the left boundary.
  active_input_method_controller->CommitText("hi", empty_ime_text_spans,
                                             WebRange(), -100);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("gcadefbhi", std::string(info.value.Utf8().data()));
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ(0, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  // Caret exceeds the right boundary.
  active_input_method_controller->CommitText("jk", empty_ime_text_spans,
                                             WebRange(), 100);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("jkgcadefbhi", std::string(info.value.Utf8().data()));
  EXPECT_EQ(11, info.selection_start);
  EXPECT_EQ(11, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);
}

TEST_P(WebViewTest, CommitTextWhileComposing) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  web_view->SetInitialFocus(false);
  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();

  WebVector<WebImeTextSpan> empty_ime_text_spans;
  active_input_method_controller->SetComposition(
      WebString::FromUTF8("abc"), empty_ime_text_spans, WebRange(), 0, 0);
  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("abc", std::string(info.value.Utf8().data()));
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ(0, info.selection_end);
  EXPECT_EQ(0, info.composition_start);
  EXPECT_EQ(3, info.composition_end);

  // Deletes ongoing composition, inserts the specified text and moves the
  // caret.
  active_input_method_controller->CommitText("hello", empty_ime_text_spans,
                                             WebRange(), -2);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello", std::string(info.value.Utf8().data()));
  EXPECT_EQ(3, info.selection_start);
  EXPECT_EQ(3, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  active_input_method_controller->SetComposition(
      WebString::FromUTF8("abc"), empty_ime_text_spans, WebRange(), 0, 0);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helabclo", std::string(info.value.Utf8().data()));
  EXPECT_EQ(3, info.selection_start);
  EXPECT_EQ(3, info.selection_end);
  EXPECT_EQ(3, info.composition_start);
  EXPECT_EQ(6, info.composition_end);

  // Deletes ongoing composition and moves the caret.
  active_input_method_controller->CommitText("", empty_ime_text_spans,
                                             WebRange(), 2);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello", std::string(info.value.Utf8().data()));
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(5, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  // Inserts the specified text and moves the caret.
  active_input_method_controller->CommitText("world", empty_ime_text_spans,
                                             WebRange(), -5);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(5, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  // Only moves the caret.
  active_input_method_controller->CommitText("", empty_ime_text_spans,
                                             WebRange(), 5);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("helloworld", std::string(info.value.Utf8().data()));
  EXPECT_EQ(10, info.selection_start);
  EXPECT_EQ(10, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);
}

TEST_P(WebViewTest, FinishCompositionDoesNotRevealSelection) {
  RegisterMockedHttpURLLoad("form_with_input.html");
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "form_with_input.html");
  web_view->Resize(WebSize(800, 600));
  web_view->SetInitialFocus(false);
  EXPECT_EQ(0, web_view->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_EQ(0, web_view->MainFrameImpl()->GetScrollOffset().height);

  // Set up a composition from existing text that needs to be committed.
  Vector<ImeTextSpan> empty_ime_text_spans;
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->GetFrame()->GetInputMethodController().SetCompositionFromExistingText(
      empty_ime_text_spans, 0, 3);

  // Scroll the input field out of the viewport.
  Element* element = static_cast<Element*>(
      web_view->MainFrameImpl()->GetDocument().GetElementById("btn"));
  element->scrollIntoView();
  float offset_height = web_view->MainFrameImpl()->GetScrollOffset().height;
  EXPECT_EQ(0, web_view->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_LT(0, offset_height);

  WebTextInputInfo info = frame->GetInputMethodController()->TextInputInfo();
  EXPECT_EQ("hello", std::string(info.value.Utf8().data()));

  // Verify that the input field is not scrolled back into the viewport.
  frame->FrameWidget()
      ->GetActiveWebInputMethodController()
      ->FinishComposingText(WebInputMethodController::kDoNotKeepSelection);
  EXPECT_EQ(0, web_view->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_EQ(offset_height, web_view->MainFrameImpl()->GetScrollOffset().height);
}

TEST_P(WebViewTest, InsertNewLinePlacementAfterFinishComposingText) {
  RegisterMockedHttpURLLoad("text_area_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "text_area_populated.html");
  web_view->SetInitialFocus(false);

  WebVector<WebImeTextSpan> empty_ime_text_spans;

  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  WebInputMethodController* active_input_method_controller =
      frame->GetInputMethodController();
  frame->SetEditableSelectionOffsets(4, 4);
  frame->SetCompositionFromExistingText(8, 12, empty_ime_text_spans);

  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("0123456789abcdefghijklmnopqrstuvwxyz",
            std::string(info.value.Utf8().data()));
  EXPECT_EQ(4, info.selection_start);
  EXPECT_EQ(4, info.selection_end);
  EXPECT_EQ(8, info.composition_start);
  EXPECT_EQ(12, info.composition_end);

  active_input_method_controller->FinishComposingText(
      WebInputMethodController::kKeepSelection);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(4, info.selection_start);
  EXPECT_EQ(4, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);

  std::string composition_text("\n");
  active_input_method_controller->CommitText(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 0);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(5, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);
  EXPECT_EQ("0123\n456789abcdefghijklmnopqrstuvwxyz",
            std::string(info.value.Utf8().data()));
}

TEST_P(WebViewTest, ExtendSelectionAndDelete) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  web_view->SetInitialFocus(false);
  frame->SetEditableSelectionOffsets(10, 10);
  frame->ExtendSelectionAndDelete(5, 8);
  WebInputMethodController* active_input_method_controller =
      frame->GetInputMethodController();
  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("01234ijklmnopqrstuvwxyz", std::string(info.value.Utf8().data()));
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(5, info.selection_end);
  frame->ExtendSelectionAndDelete(10, 0);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("ijklmnopqrstuvwxyz", std::string(info.value.Utf8().data()));
}

TEST_P(WebViewTest, DeleteSurroundingText) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebView* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  WebLocalFrameImpl* frame = ToWebLocalFrameImpl(web_view->MainFrame());
  WebInputMethodController* active_input_method_controller =
      frame->GetInputMethodController();
  web_view->SetInitialFocus(false);

  frame->SetEditableSelectionOffsets(10, 10);
  frame->DeleteSurroundingText(5, 8);
  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("01234ijklmnopqrstuvwxyz", std::string(info.value.Utf8().data()));
  EXPECT_EQ(5, info.selection_start);
  EXPECT_EQ(5, info.selection_end);

  frame->SetEditableSelectionOffsets(5, 10);
  frame->DeleteSurroundingText(3, 5);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("01ijklmstuvwxyz", std::string(info.value.Utf8().data()));
  EXPECT_EQ(2, info.selection_start);
  EXPECT_EQ(7, info.selection_end);

  frame->SetEditableSelectionOffsets(5, 5);
  frame->DeleteSurroundingText(10, 0);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("lmstuvwxyz", std::string(info.value.Utf8().data()));
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ(0, info.selection_end);

  frame->DeleteSurroundingText(0, 20);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("", std::string(info.value.Utf8().data()));
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ(0, info.selection_end);

  frame->DeleteSurroundingText(10, 10);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("", std::string(info.value.Utf8().data()));
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ(0, info.selection_end);
}

TEST_P(WebViewTest, SetCompositionFromExistingText) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  web_view->SetInitialFocus(false);
  WebVector<WebImeTextSpan> ime_text_spans(static_cast<size_t>(1));
  ime_text_spans[0] =
      WebImeTextSpan(WebImeTextSpan::Type::kComposition, 0, 4, 0, false, 0);
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  WebInputMethodController* active_input_method_controller =
      frame->GetInputMethodController();
  frame->SetEditableSelectionOffsets(4, 10);
  frame->SetCompositionFromExistingText(8, 12, ime_text_spans);
  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(4, info.selection_start);
  EXPECT_EQ(10, info.selection_end);
  EXPECT_EQ(8, info.composition_start);
  EXPECT_EQ(12, info.composition_end);
  WebVector<WebImeTextSpan> empty_ime_text_spans;
  frame->SetCompositionFromExistingText(0, 0, empty_ime_text_spans);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(4, info.selection_start);
  EXPECT_EQ(10, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);
}

TEST_P(WebViewTest, SetCompositionFromExistingTextInTextArea) {
  RegisterMockedHttpURLLoad("text_area_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "text_area_populated.html");
  web_view->SetInitialFocus(false);
  WebVector<WebImeTextSpan> ime_text_spans(static_cast<size_t>(1));
  ime_text_spans[0] =
      WebImeTextSpan(WebImeTextSpan::Type::kComposition, 0, 4, 0, false, 0);
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  WebInputMethodController* active_input_method_controller =
      frame->FrameWidget()->GetActiveWebInputMethodController();
  frame->SetEditableSelectionOffsets(27, 27);
  std::string new_line_text("\n");
  WebVector<WebImeTextSpan> empty_ime_text_spans;
  active_input_method_controller->CommitText(
      WebString::FromUTF8(new_line_text.c_str()), empty_ime_text_spans,
      WebRange(), 0);
  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("0123456789abcdefghijklmnopq\nrstuvwxyz",
            std::string(info.value.Utf8().data()));

  frame->SetEditableSelectionOffsets(31, 31);
  frame->SetCompositionFromExistingText(30, 34, ime_text_spans);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("0123456789abcdefghijklmnopq\nrstuvwxyz",
            std::string(info.value.Utf8().data()));
  EXPECT_EQ(31, info.selection_start);
  EXPECT_EQ(31, info.selection_end);
  EXPECT_EQ(30, info.composition_start);
  EXPECT_EQ(34, info.composition_end);

  std::string composition_text("yolo");
  active_input_method_controller->CommitText(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 0);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("0123456789abcdefghijklmnopq\nrsyoloxyz",
            std::string(info.value.Utf8().data()));
  EXPECT_EQ(34, info.selection_start);
  EXPECT_EQ(34, info.selection_end);
  EXPECT_EQ(-1, info.composition_start);
  EXPECT_EQ(-1, info.composition_end);
}

TEST_P(WebViewTest, SetCompositionFromExistingTextInRichText) {
  RegisterMockedHttpURLLoad("content_editable_rich_text.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "content_editable_rich_text.html");
  web_view->SetInitialFocus(false);
  WebVector<WebImeTextSpan> ime_text_spans(static_cast<size_t>(1));
  ime_text_spans[0] =
      WebImeTextSpan(WebImeTextSpan::Type::kComposition, 0, 4, 0, false, 0);
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->SetEditableSelectionOffsets(1, 1);
  WebDocument document = web_view->MainFrameImpl()->GetDocument();
  EXPECT_FALSE(document.GetElementById("bold").IsNull());
  frame->SetCompositionFromExistingText(0, 4, ime_text_spans);
  EXPECT_FALSE(document.GetElementById("bold").IsNull());
}

TEST_P(WebViewTest, SetEditableSelectionOffsetsKeepsComposition) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  web_view->SetInitialFocus(false);

  std::string composition_text_first("hello ");
  std::string composition_text_second("world");
  WebVector<WebImeTextSpan> empty_ime_text_spans;
  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();
  active_input_method_controller->CommitText(
      WebString::FromUTF8(composition_text_first.c_str()), empty_ime_text_spans,
      WebRange(), 0);
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text_second.c_str()),
      empty_ime_text_spans, WebRange(), 5, 5);

  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello world", std::string(info.value.Utf8().data()));
  EXPECT_EQ(11, info.selection_start);
  EXPECT_EQ(11, info.selection_end);
  EXPECT_EQ(6, info.composition_start);
  EXPECT_EQ(11, info.composition_end);

  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->SetEditableSelectionOffsets(6, 6);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello world", std::string(info.value.Utf8().data()));
  EXPECT_EQ(6, info.selection_start);
  EXPECT_EQ(6, info.selection_end);
  EXPECT_EQ(6, info.composition_start);
  EXPECT_EQ(11, info.composition_end);

  frame->SetEditableSelectionOffsets(8, 8);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello world", std::string(info.value.Utf8().data()));
  EXPECT_EQ(8, info.selection_start);
  EXPECT_EQ(8, info.selection_end);
  EXPECT_EQ(6, info.composition_start);
  EXPECT_EQ(11, info.composition_end);

  frame->SetEditableSelectionOffsets(11, 11);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello world", std::string(info.value.Utf8().data()));
  EXPECT_EQ(11, info.selection_start);
  EXPECT_EQ(11, info.selection_end);
  EXPECT_EQ(6, info.composition_start);
  EXPECT_EQ(11, info.composition_end);

  frame->SetEditableSelectionOffsets(6, 11);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello world", std::string(info.value.Utf8().data()));
  EXPECT_EQ(6, info.selection_start);
  EXPECT_EQ(11, info.selection_end);
  EXPECT_EQ(6, info.composition_start);
  EXPECT_EQ(11, info.composition_end);

  frame->SetEditableSelectionOffsets(2, 2);
  info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ("hello world", std::string(info.value.Utf8().data()));
  EXPECT_EQ(2, info.selection_start);
  EXPECT_EQ(2, info.selection_end);
  // Composition range should be reset by browser process or keyboard apps.
  EXPECT_EQ(6, info.composition_start);
  EXPECT_EQ(11, info.composition_end);
}

TEST_P(WebViewTest, IsSelectionAnchorFirst) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  WebLocalFrame* frame = web_view->MainFrameImpl();

  web_view->SetInitialFocus(false);
  frame->SetEditableSelectionOffsets(4, 10);
  EXPECT_TRUE(web_view->IsSelectionAnchorFirst());
  WebRect anchor;
  WebRect focus;
  web_view->SelectionBounds(anchor, focus);
  frame->SelectRange(WebPoint(focus.x, focus.y), WebPoint(anchor.x, anchor.y));
  EXPECT_FALSE(web_view->IsSelectionAnchorFirst());
}

TEST_P(
    WebViewTest,
    MoveFocusToNextFocusableElementInFormWithKeyEventListenersAndNonEditableElements) {
  const std::string test_file =
      "advance_focus_in_form_with_key_event_listeners.html";
  RegisterMockedHttpURLLoad(test_file);
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + test_file);
  web_view->SetInitialFocus(false);
  Document* document = web_view->MainFrameImpl()->GetFrame()->GetDocument();
  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();
  const int default_text_input_flags = kWebTextInputFlagNone;

  struct FocusedElement {
    AtomicString element_id;
    int next_previous_flags;
  } focused_elements[] = {
      {"input1",
       default_text_input_flags | kWebTextInputFlagHaveNextFocusableElement},
      {"contenteditable1", kWebTextInputFlagHaveNextFocusableElement |
                               kWebTextInputFlagHavePreviousFocusableElement},
      {"input2", default_text_input_flags |
                     kWebTextInputFlagHaveNextFocusableElement |
                     kWebTextInputFlagHavePreviousFocusableElement},
      {"textarea1", default_text_input_flags |
                        kWebTextInputFlagHaveNextFocusableElement |
                        kWebTextInputFlagHavePreviousFocusableElement},
      {"input3", default_text_input_flags |
                     kWebTextInputFlagHaveNextFocusableElement |
                     kWebTextInputFlagHavePreviousFocusableElement},
      {"textarea2", default_text_input_flags |
                        kWebTextInputFlagHavePreviousFocusableElement},
  };

  // Forward Navigation in form1 with NEXT
  Element* input1 = document->getElementById("input1");
  input1->focus();
  Element* current_focus = nullptr;
  Element* next_focus = nullptr;
  int next_previous_flags;
  for (size_t i = 0; i < WTF_ARRAY_LENGTH(focused_elements); ++i) {
    current_focus = document->getElementById(focused_elements[i].element_id);
    EXPECT_EQ(current_focus, document->FocusedElement());
    next_previous_flags =
        active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
    EXPECT_EQ(focused_elements[i].next_previous_flags, next_previous_flags);
    next_focus =
        document->GetPage()->GetFocusController().NextFocusableElementInForm(
            current_focus, kWebFocusTypeForward);
    if (next_focus) {
      EXPECT_EQ(next_focus->GetIdAttribute(),
                focused_elements[i + 1].element_id);
    }
    web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  }
  // Now focus will stay on previous focus itself, because it has no next
  // element.
  EXPECT_EQ(current_focus, document->FocusedElement());

  // Backward Navigation in form1 with PREVIOUS
  for (size_t i = WTF_ARRAY_LENGTH(focused_elements); i-- > 0;) {
    current_focus = document->getElementById(focused_elements[i].element_id);
    EXPECT_EQ(current_focus, document->FocusedElement());
    next_previous_flags =
        active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
    EXPECT_EQ(focused_elements[i].next_previous_flags, next_previous_flags);
    next_focus =
        document->GetPage()->GetFocusController().NextFocusableElementInForm(
            current_focus, kWebFocusTypeBackward);
    if (next_focus) {
      EXPECT_EQ(next_focus->GetIdAttribute(),
                focused_elements[i - 1].element_id);
    }
    web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  }
  // Now focus will stay on previous focus itself, because it has no previous
  // element.
  EXPECT_EQ(current_focus, document->FocusedElement());

  // Setting a non editable element as focus in form1, and ensuring editable
  // navigation is fine in forward and backward.
  Element* button1 = document->getElementById("button1");
  button1->focus();
  next_previous_flags =
      active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
  EXPECT_EQ(kWebTextInputFlagHaveNextFocusableElement |
                kWebTextInputFlagHavePreviousFocusableElement,
            next_previous_flags);
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          button1, kWebFocusTypeForward);
  EXPECT_EQ(next_focus->GetIdAttribute(), "contenteditable1");
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  Element* content_editable1 = document->getElementById("contenteditable1");
  EXPECT_EQ(content_editable1, document->FocusedElement());
  button1->focus();
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          button1, kWebFocusTypeBackward);
  EXPECT_EQ(next_focus->GetIdAttribute(), "input1");
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  EXPECT_EQ(input1, document->FocusedElement());

  Element* anchor1 = document->getElementById("anchor1");
  anchor1->focus();
  next_previous_flags =
      active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
  // No Next/Previous element for elements outside form.
  EXPECT_EQ(0, next_previous_flags);
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          anchor1, kWebFocusTypeForward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  // Since anchor is not a form control element, next/previous element will
  // be null, hence focus will stay same as it is.
  EXPECT_EQ(anchor1, document->FocusedElement());

  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          anchor1, kWebFocusTypeBackward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  EXPECT_EQ(anchor1, document->FocusedElement());

  // Navigation of elements which is not part of any forms.
  Element* text_area3 = document->getElementById("textarea3");
  text_area3->focus();
  next_previous_flags =
      active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
  // No Next/Previous element for elements outside form.
  EXPECT_EQ(default_text_input_flags, next_previous_flags);
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          text_area3, kWebFocusTypeForward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  // No Next/Previous element to this element because it's not part of any
  // form. Hence focus won't change wrt NEXT/PREVIOUS.
  EXPECT_EQ(text_area3, document->FocusedElement());
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          text_area3, kWebFocusTypeBackward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  EXPECT_EQ(text_area3, document->FocusedElement());

  // Navigation from an element which is part of a form but not an editable
  // element.
  Element* button2 = document->getElementById("button2");
  button2->focus();
  next_previous_flags =
      active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
  // No Next element for this element, due to last element outside the form.
  EXPECT_EQ(kWebTextInputFlagHavePreviousFocusableElement, next_previous_flags);
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          button2, kWebFocusTypeForward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  // No Next element to this element because it's not part of any form.
  // Hence focus won't change wrt NEXT.
  EXPECT_EQ(button2, document->FocusedElement());
  Element* text_area2 = document->getElementById("textarea2");
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          button2, kWebFocusTypeBackward);
  EXPECT_EQ(next_focus, text_area2);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  // Since button is a form control element from form1, ensuring focus is set
  // at correct position.
  EXPECT_EQ(text_area2, document->FocusedElement());

  Element* content_editable2 = document->getElementById("contenteditable2");
  document->SetFocusedElement(
      content_editable2,
      FocusParams(SelectionBehaviorOnFocus::kNone, kWebFocusTypeNone, nullptr));
  next_previous_flags =
      active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
  // No Next/Previous element for elements outside form.
  EXPECT_EQ(0, next_previous_flags);
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          content_editable2, kWebFocusTypeForward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  // No Next/Previous element to this element because it's not part of any
  // form. Hence focus won't change wrt NEXT/PREVIOUS.
  EXPECT_EQ(content_editable2, document->FocusedElement());
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          content_editable2, kWebFocusTypeBackward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  EXPECT_EQ(content_editable2, document->FocusedElement());

  // Navigation of elements which is having invalid form attribute and hence
  // not part of any forms.
  Element* text_area4 = document->getElementById("textarea4");
  text_area4->focus();
  next_previous_flags =
      active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
  // No Next/Previous element for elements which is having invalid form
  // attribute.
  EXPECT_EQ(default_text_input_flags, next_previous_flags);
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          text_area4, kWebFocusTypeForward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  // No Next/Previous element to this element because it's not part of any
  // form. Hence focus won't change wrt NEXT/PREVIOUS.
  EXPECT_EQ(text_area4, document->FocusedElement());
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          text_area4, kWebFocusTypeBackward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  EXPECT_EQ(text_area4, document->FocusedElement());

  web_view_helper_.Reset();
}

TEST_P(
    WebViewTest,
    MoveFocusToNextFocusableElementInFormWithNonEditableNonFormControlElements) {
  const std::string test_file =
      "advance_focus_in_form_with_key_event_listeners.html";
  RegisterMockedHttpURLLoad(test_file);
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + test_file);
  web_view->SetInitialFocus(false);
  Document* document = web_view->MainFrameImpl()->GetFrame()->GetDocument();
  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();
  const int default_text_input_flags = kWebTextInputFlagNone;

  struct FocusedElement {
    const char* element_id;
    int next_previous_flags;
  } focused_elements[] = {
      {"textarea5",
       default_text_input_flags | kWebTextInputFlagHaveNextFocusableElement},
      {"input4", default_text_input_flags |
                     kWebTextInputFlagHaveNextFocusableElement |
                     kWebTextInputFlagHavePreviousFocusableElement},
      {"contenteditable3", kWebTextInputFlagHaveNextFocusableElement |
                               kWebTextInputFlagHavePreviousFocusableElement},
      {"input5", kWebTextInputFlagHavePreviousFocusableElement},
  };

  // Forward Navigation in form2 with NEXT
  Element* text_area5 = document->getElementById("textarea5");
  text_area5->focus();
  Element* current_focus = nullptr;
  Element* next_focus = nullptr;
  int next_previous_flags;
  for (size_t i = 0; i < WTF_ARRAY_LENGTH(focused_elements); ++i) {
    current_focus = document->getElementById(focused_elements[i].element_id);
    EXPECT_EQ(current_focus, document->FocusedElement());
    next_previous_flags =
        active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
    EXPECT_EQ(focused_elements[i].next_previous_flags, next_previous_flags);
    next_focus =
        document->GetPage()->GetFocusController().NextFocusableElementInForm(
            current_focus, kWebFocusTypeForward);
    if (next_focus) {
      EXPECT_EQ(next_focus->GetIdAttribute(),
                focused_elements[i + 1].element_id);
    }
    web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  }
  // Now focus will stay on previous focus itself, because it has no next
  // element.
  EXPECT_EQ(current_focus, document->FocusedElement());

  // Backward Navigation in form1 with PREVIOUS
  for (size_t i = WTF_ARRAY_LENGTH(focused_elements); i-- > 0;) {
    current_focus = document->getElementById(focused_elements[i].element_id);
    EXPECT_EQ(current_focus, document->FocusedElement());
    next_previous_flags =
        active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
    EXPECT_EQ(focused_elements[i].next_previous_flags, next_previous_flags);
    next_focus =
        document->GetPage()->GetFocusController().NextFocusableElementInForm(
            current_focus, kWebFocusTypeBackward);
    if (next_focus) {
      EXPECT_EQ(next_focus->GetIdAttribute(),
                focused_elements[i - 1].element_id);
    }
    web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  }
  // Now focus will stay on previous focus itself, because it has no previous
  // element.
  EXPECT_EQ(current_focus, document->FocusedElement());

  // Setting a non editable element as focus in form1, and ensuring editable
  // navigation is fine in forward and backward.
  Element* anchor2 = document->getElementById("anchor2");
  anchor2->focus();
  next_previous_flags =
      active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
  // No Next/Previous element for non-form control elements inside form.
  EXPECT_EQ(0, next_previous_flags);
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          anchor2, kWebFocusTypeForward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  // Since anchor is not a form control element, next/previous element will
  // be null, hence focus will stay same as it is.
  EXPECT_EQ(anchor2, document->FocusedElement());
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          anchor2, kWebFocusTypeBackward);
  EXPECT_EQ(next_focus, nullptr);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  EXPECT_EQ(anchor2, document->FocusedElement());

  web_view_helper_.Reset();
}

TEST_P(WebViewTest, MoveFocusToNextFocusableElementInFormWithTabIndexElements) {
  const std::string test_file =
      "advance_focus_in_form_with_tabindex_elements.html";
  RegisterMockedHttpURLLoad(test_file);
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + test_file);
  web_view->SetInitialFocus(false);
  Document* document = web_view->MainFrameImpl()->GetFrame()->GetDocument();
  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();
  const int default_text_input_flags = kWebTextInputFlagNone;

  struct FocusedElement {
    const char* element_id;
    int next_previous_flags;
  } focused_elements[] = {
      {"textarea6",
       default_text_input_flags | kWebTextInputFlagHaveNextFocusableElement},
      {"input5", default_text_input_flags |
                     kWebTextInputFlagHaveNextFocusableElement |
                     kWebTextInputFlagHavePreviousFocusableElement},
      {"contenteditable4", kWebTextInputFlagHaveNextFocusableElement |
                               kWebTextInputFlagHavePreviousFocusableElement},
      {"input6", default_text_input_flags |
                     kWebTextInputFlagHavePreviousFocusableElement},
  };

  // Forward Navigation in form with NEXT which has tabindex attribute
  // which differs visual order.
  Element* text_area6 = document->getElementById("textarea6");
  text_area6->focus();
  Element* current_focus = nullptr;
  Element* next_focus = nullptr;
  int next_previous_flags;
  for (size_t i = 0; i < WTF_ARRAY_LENGTH(focused_elements); ++i) {
    current_focus = document->getElementById(focused_elements[i].element_id);
    EXPECT_EQ(current_focus, document->FocusedElement());
    next_previous_flags =
        active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
    EXPECT_EQ(focused_elements[i].next_previous_flags, next_previous_flags);
    next_focus =
        document->GetPage()->GetFocusController().NextFocusableElementInForm(
            current_focus, kWebFocusTypeForward);
    if (next_focus) {
      EXPECT_EQ(next_focus->GetIdAttribute(),
                focused_elements[i + 1].element_id);
    }
    web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  }
  // No next editable element which is focusable with proper tab index, hence
  // staying on previous focus.
  EXPECT_EQ(current_focus, document->FocusedElement());

  // Backward Navigation in form with PREVIOUS which has tabindex attribute
  // which differs visual order.
  for (size_t i = WTF_ARRAY_LENGTH(focused_elements); i-- > 0;) {
    current_focus = document->getElementById(focused_elements[i].element_id);
    EXPECT_EQ(current_focus, document->FocusedElement());
    next_previous_flags =
        active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
    EXPECT_EQ(focused_elements[i].next_previous_flags, next_previous_flags);
    next_focus =
        document->GetPage()->GetFocusController().NextFocusableElementInForm(
            current_focus, kWebFocusTypeBackward);
    if (next_focus) {
      EXPECT_EQ(next_focus->GetIdAttribute(),
                focused_elements[i - 1].element_id);
    }
    web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  }
  // Now focus will stay on previous focus itself, because it has no previous
  // element.
  EXPECT_EQ(current_focus, document->FocusedElement());

  // Setting an element which has invalid tabindex and ensuring it is not
  // modifying further navigation.
  Element* content_editable5 = document->getElementById("contenteditable5");
  content_editable5->focus();
  Element* input6 = document->getElementById("input6");
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          content_editable5, kWebFocusTypeForward);
  EXPECT_EQ(next_focus, input6);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  EXPECT_EQ(input6, document->FocusedElement());
  content_editable5->focus();
  next_focus =
      document->GetPage()->GetFocusController().NextFocusableElementInForm(
          content_editable5, kWebFocusTypeBackward);
  EXPECT_EQ(next_focus, text_area6);
  web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  EXPECT_EQ(text_area6, document->FocusedElement());

  web_view_helper_.Reset();
}

TEST_P(WebViewTest,
       MoveFocusToNextFocusableElementInFormWithDisabledAndReadonlyElements) {
  const std::string test_file =
      "advance_focus_in_form_with_disabled_and_readonly_elements.html";
  RegisterMockedHttpURLLoad(test_file);
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + test_file);
  web_view->SetInitialFocus(false);
  Document* document = web_view->MainFrameImpl()->GetFrame()->GetDocument();
  WebInputMethodController* active_input_method_controller =
      web_view->MainFrameImpl()
          ->FrameWidget()
          ->GetActiveWebInputMethodController();

  struct FocusedElement {
    const char* element_id;
    int next_previous_flags;
  } focused_elements[] = {
      {"contenteditable6", kWebTextInputFlagHaveNextFocusableElement},
      {"contenteditable7", kWebTextInputFlagHavePreviousFocusableElement},
  };
  // Forward Navigation in form with NEXT which has has disabled/enabled
  // elements which will gets skipped during navigation.
  Element* content_editable6 = document->getElementById("contenteditable6");
  content_editable6->focus();
  Element* current_focus = nullptr;
  Element* next_focus = nullptr;
  int next_previous_flags;
  for (size_t i = 0; i < WTF_ARRAY_LENGTH(focused_elements); ++i) {
    current_focus = document->getElementById(focused_elements[i].element_id);
    EXPECT_EQ(current_focus, document->FocusedElement());
    next_previous_flags =
        active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
    EXPECT_EQ(focused_elements[i].next_previous_flags, next_previous_flags);
    next_focus =
        document->GetPage()->GetFocusController().NextFocusableElementInForm(
            current_focus, kWebFocusTypeForward);
    if (next_focus) {
      EXPECT_EQ(next_focus->GetIdAttribute(),
                focused_elements[i + 1].element_id);
    }
    web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeForward);
  }
  // No next editable element which is focusable, hence staying on previous
  // focus.
  EXPECT_EQ(current_focus, document->FocusedElement());

  // Backward Navigation in form with PREVIOUS which has has
  // disabled/enabled elements which will gets skipped during navigation.
  for (size_t i = WTF_ARRAY_LENGTH(focused_elements); i-- > 0;) {
    current_focus = document->getElementById(focused_elements[i].element_id);
    EXPECT_EQ(current_focus, document->FocusedElement());
    next_previous_flags =
        active_input_method_controller->ComputeWebTextInputNextPreviousFlags();
    EXPECT_EQ(focused_elements[i].next_previous_flags, next_previous_flags);
    next_focus =
        document->GetPage()->GetFocusController().NextFocusableElementInForm(
            current_focus, kWebFocusTypeBackward);
    if (next_focus) {
      EXPECT_EQ(next_focus->GetIdAttribute(),
                focused_elements[i - 1].element_id);
    }
    web_view->MainFrameImpl()->AdvanceFocusInForm(kWebFocusTypeBackward);
  }
  // Now focus will stay on previous focus itself, because it has no previous
  // element.
  EXPECT_EQ(current_focus, document->FocusedElement());

  web_view_helper_.Reset();
}

TEST_P(WebViewTest, ExitingDeviceEmulationResetsPageScale) {
  RegisterMockedHttpURLLoad("200-by-300.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(base_url_ + "200-by-300.html");
  web_view_impl->Resize(WebSize(200, 300));

  float page_scale_expected = web_view_impl->PageScaleFactor();

  WebDeviceEmulationParams params;
  params.screen_position = WebDeviceEmulationParams::kDesktop;
  params.device_scale_factor = 0;
  params.scale = 1;

  web_view_impl->EnableDeviceEmulation(params);

  web_view_impl->SetPageScaleFactor(2);

  web_view_impl->DisableDeviceEmulation();

  EXPECT_EQ(page_scale_expected, web_view_impl->PageScaleFactor());
}

TEST_P(WebViewTest, HistoryResetScrollAndScaleState) {
  RegisterMockedHttpURLLoad("200-by-300.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(base_url_ + "200-by-300.html");
  web_view_impl->Resize(WebSize(100, 150));
  web_view_impl->UpdateAllLifecyclePhases();
  EXPECT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().height);

  // Make the page scale and scroll with the given paremeters.
  web_view_impl->SetPageScaleFactor(2.0f);
  web_view_impl->MainFrameImpl()->SetScrollOffset(WebSize(94, 111));
  EXPECT_EQ(2.0f, web_view_impl->PageScaleFactor());
  EXPECT_EQ(94, web_view_impl->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_EQ(111, web_view_impl->MainFrameImpl()->GetScrollOffset().height);
  LocalFrame* main_frame_local =
      ToLocalFrame(web_view_impl->GetPage()->MainFrame());
  main_frame_local->Loader().SaveScrollState();
  EXPECT_EQ(2.0f, main_frame_local->Loader()
                      .GetDocumentLoader()
                      ->GetHistoryItem()
                      ->GetViewState()
                      ->page_scale_factor_);
  EXPECT_EQ(94, main_frame_local->Loader()
                    .GetDocumentLoader()
                    ->GetHistoryItem()
                    ->GetViewState()
                    ->scroll_offset_.Width());
  EXPECT_EQ(111, main_frame_local->Loader()
                     .GetDocumentLoader()
                     ->GetHistoryItem()
                     ->GetViewState()
                     ->scroll_offset_.Height());

  // Confirm that resetting the page state resets the saved scroll position.
  web_view_impl->ResetScrollAndScaleState();
  EXPECT_EQ(1.0f, web_view_impl->PageScaleFactor());
  EXPECT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().height);
  EXPECT_EQ(nullptr, main_frame_local->Loader()
                         .GetDocumentLoader()
                         ->GetHistoryItem()
                         ->GetViewState());
}

TEST_P(WebViewTest, BackForwardRestoreScroll) {
  RegisterMockedHttpURLLoad("back_forward_restore_scroll.html");
  WebViewImpl* web_view_impl = web_view_helper_.InitializeAndLoad(
      base_url_ + "back_forward_restore_scroll.html");
  web_view_impl->Resize(WebSize(640, 480));
  web_view_impl->UpdateAllLifecyclePhases();

  // Emulate a user scroll
  web_view_impl->MainFrameImpl()->SetScrollOffset(WebSize(0, 900));
  LocalFrame* main_frame_local =
      ToLocalFrame(web_view_impl->GetPage()->MainFrame());
  Persistent<HistoryItem> item1 =
      main_frame_local->Loader().GetDocumentLoader()->GetHistoryItem();

  // Click an anchor
  main_frame_local->Loader().Load(FrameLoadRequest(
      main_frame_local->GetDocument(),
      ResourceRequest(main_frame_local->GetDocument()->CompleteURL("#a"))));
  Persistent<HistoryItem> item2 =
      main_frame_local->Loader().GetDocumentLoader()->GetHistoryItem();

  // Go back, then forward, then back again.
  main_frame_local->Loader().Load(
      FrameLoadRequest(nullptr, item1->GenerateResourceRequest(
                                    mojom::FetchCacheMode::kDefault)),
      kFrameLoadTypeBackForward, item1.Get(), kHistorySameDocumentLoad);
  main_frame_local->Loader().Load(
      FrameLoadRequest(nullptr, item2->GenerateResourceRequest(
                                    mojom::FetchCacheMode::kDefault)),
      kFrameLoadTypeBackForward, item2.Get(), kHistorySameDocumentLoad);
  main_frame_local->Loader().Load(
      FrameLoadRequest(nullptr, item1->GenerateResourceRequest(
                                    mojom::FetchCacheMode::kDefault)),
      kFrameLoadTypeBackForward, item1.Get(), kHistorySameDocumentLoad);

  // Click a different anchor
  main_frame_local->Loader().Load(FrameLoadRequest(
      main_frame_local->GetDocument(),
      ResourceRequest(main_frame_local->GetDocument()->CompleteURL("#b"))));
  Persistent<HistoryItem> item3 =
      main_frame_local->Loader().GetDocumentLoader()->GetHistoryItem();

  // Go back, then forward. The scroll position should be properly set on the
  // forward navigation.
  main_frame_local->Loader().Load(
      FrameLoadRequest(nullptr, item1->GenerateResourceRequest(
                                    mojom::FetchCacheMode::kDefault)),
      kFrameLoadTypeBackForward, item1.Get(), kHistorySameDocumentLoad);
  main_frame_local->Loader().Load(
      FrameLoadRequest(nullptr, item3->GenerateResourceRequest(
                                    mojom::FetchCacheMode::kDefault)),
      kFrameLoadTypeBackForward, item3.Get(), kHistorySameDocumentLoad);
  EXPECT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_GT(web_view_impl->MainFrameImpl()->GetScrollOffset().height, 2000);
}

// Tests that we restore scroll and scale *after* the fullscreen styles are
// removed and the page is laid out. http://crbug.com/625683.
TEST_P(WebViewTest, FullscreenResetScrollAndScaleFullscreenStyles) {
  RegisterMockedHttpURLLoad("fullscreen_style.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(base_url_ + "fullscreen_style.html");
  web_view_impl->Resize(WebSize(800, 600));
  web_view_impl->UpdateAllLifecyclePhases();

  // Scroll the page down.
  web_view_impl->MainFrameImpl()->SetScrollOffset(WebSize(0, 2000));
  ASSERT_EQ(2000, web_view_impl->MainFrameImpl()->GetScrollOffset().height);

  // Enter fullscreen.
  LocalFrame* frame = web_view_impl->MainFrameImpl()->GetFrame();
  Element* element = frame->GetDocument()->getElementById("fullscreenElement");
  std::unique_ptr<UserGestureIndicator> gesture =
      Frame::NotifyUserActivation(frame);
  Fullscreen::RequestFullscreen(*element);
  web_view_impl->DidEnterFullscreen();
  web_view_impl->UpdateAllLifecyclePhases();

  // Sanity-check. There should be no scrolling possible.
  ASSERT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().height);
  ASSERT_EQ(0, web_view_impl->MainFrameImpl()
                   ->GetFrameView()
                   ->MaximumScrollOffset()
                   .Height());

  // Confirm that after exiting and doing a layout, the scroll and scale
  // parameters are reset. The page sets display: none on overflowing elements
  // while in fullscreen so if we try to restore before the style and layout
  // is applied the offsets will be clamped.
  web_view_impl->DidExitFullscreen();
  EXPECT_TRUE(web_view_impl->MainFrameImpl()->GetFrameView()->NeedsLayout());
  web_view_impl->UpdateAllLifecyclePhases();

  EXPECT_EQ(2000, web_view_impl->MainFrameImpl()->GetScrollOffset().height);
}

// Tests that exiting and immediately reentering fullscreen doesn't cause the
// scroll and scale restoration to occur when we enter fullscreen again.
TEST_P(WebViewTest, FullscreenResetScrollAndScaleExitAndReenter) {
  RegisterMockedHttpURLLoad("fullscreen_style.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(base_url_ + "fullscreen_style.html");
  web_view_impl->Resize(WebSize(800, 600));
  web_view_impl->UpdateAllLifecyclePhases();

  // Scroll the page down.
  web_view_impl->MainFrameImpl()->SetScrollOffset(WebSize(0, 2000));
  ASSERT_EQ(2000, web_view_impl->MainFrameImpl()->GetScrollOffset().height);

  // Enter fullscreen.
  LocalFrame* frame = web_view_impl->MainFrameImpl()->GetFrame();
  Element* element = frame->GetDocument()->getElementById("fullscreenElement");
  std::unique_ptr<UserGestureIndicator> gesture =
      Frame::NotifyUserActivation(frame);
  Fullscreen::RequestFullscreen(*element);
  web_view_impl->DidEnterFullscreen();
  web_view_impl->UpdateAllLifecyclePhases();

  // Sanity-check. There should be no scrolling possible.
  ASSERT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().height);
  ASSERT_EQ(0, web_view_impl->MainFrameImpl()
                   ->GetFrameView()
                   ->MaximumScrollOffset()
                   .Height());

  // Exit and, without performing a layout, reenter fullscreen again. We
  // shouldn't try to restore the scroll and scale values when we layout to
  // enter fullscreen.
  web_view_impl->DidExitFullscreen();
  Fullscreen::RequestFullscreen(*element);
  web_view_impl->DidEnterFullscreen();
  web_view_impl->UpdateAllLifecyclePhases();

  // Sanity-check. There should be no scrolling possible.
  ASSERT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().height);
  ASSERT_EQ(0, web_view_impl->MainFrameImpl()
                   ->GetFrameView()
                   ->MaximumScrollOffset()
                   .Height());

  // When we exit now, we should restore the original scroll value.
  web_view_impl->DidExitFullscreen();
  web_view_impl->UpdateAllLifecyclePhases();

  EXPECT_EQ(2000, web_view_impl->MainFrameImpl()->GetScrollOffset().height);
}

TEST_P(WebViewTest, EnterFullscreenResetScrollAndScaleState) {
  RegisterMockedHttpURLLoad("200-by-300.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(base_url_ + "200-by-300.html");
  web_view_impl->Resize(WebSize(100, 150));
  web_view_impl->UpdateAllLifecyclePhases();
  EXPECT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_EQ(0, web_view_impl->MainFrameImpl()->GetScrollOffset().height);

  // Make the page scale and scroll with the given paremeters.
  web_view_impl->SetPageScaleFactor(2.0f);
  web_view_impl->MainFrameImpl()->SetScrollOffset(WebSize(94, 111));
  web_view_impl->SetVisualViewportOffset(WebFloatPoint(12, 20));
  EXPECT_EQ(2.0f, web_view_impl->PageScaleFactor());
  EXPECT_EQ(94, web_view_impl->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_EQ(111, web_view_impl->MainFrameImpl()->GetScrollOffset().height);
  EXPECT_EQ(12, web_view_impl->VisualViewportOffset().x);
  EXPECT_EQ(20, web_view_impl->VisualViewportOffset().y);

  LocalFrame* frame = web_view_impl->MainFrameImpl()->GetFrame();
  Element* element = frame->GetDocument()->body();
  std::unique_ptr<UserGestureIndicator> gesture =
      Frame::NotifyUserActivation(frame);
  Fullscreen::RequestFullscreen(*element);
  web_view_impl->DidEnterFullscreen();

  // Page scale factor must be 1.0 during fullscreen for elements to be sized
  // properly.
  EXPECT_EQ(1.0f, web_view_impl->PageScaleFactor());

  // Make sure fullscreen nesting doesn't disrupt scroll/scale saving.
  Element* other_element = frame->GetDocument()->getElementById("content");
  Fullscreen::RequestFullscreen(*other_element);

  // Confirm that exiting fullscreen restores the parameters.
  web_view_impl->DidExitFullscreen();
  web_view_impl->UpdateAllLifecyclePhases();

  EXPECT_EQ(2.0f, web_view_impl->PageScaleFactor());
  EXPECT_EQ(94, web_view_impl->MainFrameImpl()->GetScrollOffset().width);
  EXPECT_EQ(111, web_view_impl->MainFrameImpl()->GetScrollOffset().height);
  EXPECT_EQ(12, web_view_impl->VisualViewportOffset().x);
  EXPECT_EQ(20, web_view_impl->VisualViewportOffset().y);
}

class PrintWebViewClient : public FrameTestHelpers::TestWebViewClient {
 public:
  PrintWebViewClient() : print_called_(false) {}

  // WebViewClient methods
  void PrintPage(WebLocalFrame*) override { print_called_ = true; }

  bool PrintCalled() const { return print_called_; }

 private:
  bool print_called_;
};

TEST_P(WebViewTest, PrintWithXHRInFlight) {
  PrintWebViewClient client;
  RegisterMockedHttpURLLoad("print_with_xhr_inflight.html");
  WebViewImpl* web_view_impl = web_view_helper_.InitializeAndLoad(
      base_url_ + "print_with_xhr_inflight.html", nullptr, &client);

  ASSERT_TRUE(ToLocalFrame(web_view_impl->GetPage()->MainFrame())
                  ->GetDocument()
                  ->LoadEventFinished());
  EXPECT_TRUE(client.PrintCalled());
  web_view_helper_.Reset();
}

static void DragAndDropURL(WebViewImpl* web_view, const std::string& url) {
  WebDragData drag_data;
  drag_data.Initialize();

  WebDragData::Item item;
  item.storage_type = WebDragData::Item::kStorageTypeString;
  item.string_type = "text/uri-list";
  item.string_data = WebString::FromUTF8(url);
  drag_data.AddItem(item);

  const WebPoint client_point(0, 0);
  const WebPoint screen_point(0, 0);
  WebFrameWidgetBase* widget = web_view->MainFrameImpl()->FrameWidget();
  widget->DragTargetDragEnter(drag_data, client_point, screen_point,
                              kWebDragOperationCopy, 0);
  widget->DragTargetDrop(drag_data, client_point, screen_point, 0);
  FrameTestHelpers::PumpPendingRequestsForFrameToLoad(web_view->MainFrame());
}

TEST_P(WebViewTest, DragDropURL) {
  RegisterMockedHttpURLLoad("foo.html");
  RegisterMockedHttpURLLoad("bar.html");

  const std::string foo_url = base_url_ + "foo.html";
  const std::string bar_url = base_url_ + "bar.html";

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(foo_url);

  ASSERT_TRUE(web_view);

  // Drag and drop barUrl and verify that we've navigated to it.
  DragAndDropURL(web_view, bar_url);
  EXPECT_EQ(bar_url,
            web_view->MainFrameImpl()->GetDocument().Url().GetString().Utf8());

  // Drag and drop fooUrl and verify that we've navigated back to it.
  DragAndDropURL(web_view, foo_url);
  EXPECT_EQ(foo_url,
            web_view->MainFrameImpl()->GetDocument().Url().GetString().Utf8());

  // Disable navigation on drag-and-drop.
  web_view->SettingsImpl()->SetNavigateOnDragDrop(false);

  // Attempt to drag and drop to barUrl and verify that no navigation has
  // occurred.
  DragAndDropURL(web_view, bar_url);
  EXPECT_EQ(foo_url,
            web_view->MainFrameImpl()->GetDocument().Url().GetString().Utf8());
}

bool WebViewTest::TapElement(WebInputEvent::Type type, Element* element) {
  if (!element || !element->GetLayoutObject())
    return false;

  DCHECK(web_view_helper_.WebView());
  element->scrollIntoViewIfNeeded();

  // TODO(bokan): Technically incorrect, event positions should be in viewport
  // space. crbug.com/371902.
  IntPoint center =
      web_view_helper_.WebView()
          ->MainFrameImpl()
          ->GetFrameView()
          ->ContentsToScreen(
              element->GetLayoutObject()->AbsoluteBoundingBoxRect())
          .Center();

  WebGestureEvent event(type, WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);

  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = center.X();
  event.y = center.Y();

  web_view_helper_.WebView()->HandleInputEvent(WebCoalescedInputEvent(event));
  RunPendingTasks();
  return true;
}

bool WebViewTest::TapElementById(WebInputEvent::Type type,
                                 const WebString& id) {
  DCHECK(web_view_helper_.WebView());
  Element* element = static_cast<Element*>(
      web_view_helper_.LocalMainFrame()->GetDocument().GetElementById(id));
  return TapElement(type, element);
}

IntSize WebViewTest::PrintICBSizeFromPageSize(const FloatSize& page_size) {
  // The expected layout size comes from the calculation done in
  // ResizePageRectsKeepingRatio() which is used from PrintContext::begin() to
  // scale the page size.
  const float ratio = page_size.Height() / (float)page_size.Width();
  const int icb_width =
      floor(page_size.Width() * PrintContext::kPrintingMinimumShrinkFactor);
  const int icb_height = floor(icb_width * ratio);
  return IntSize(icb_width, icb_height);
}

TEST_P(WebViewTest, ClientTapHandling) {
  TapHandlingWebViewClient client;
  WebView* web_view =
      web_view_helper_.InitializeAndLoad("about:blank", nullptr, &client);
  WebGestureEvent event(WebInputEvent::kGestureTap, WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 3;
  event.y = 8;
  web_view->HandleInputEvent(WebCoalescedInputEvent(event));
  RunPendingTasks();
  EXPECT_EQ(3, client.TapX());
  EXPECT_EQ(8, client.TapY());
  client.Reset();
  event.SetType(WebInputEvent::kGestureLongPress);
  event.x = 25;
  event.y = 7;
  web_view->HandleInputEvent(WebCoalescedInputEvent(event));
  RunPendingTasks();
  EXPECT_EQ(25, client.LongpressX());
  EXPECT_EQ(7, client.LongpressY());

  // Explicitly reset to break dependency on locally scoped client.
  web_view_helper_.Reset();
}

TEST_P(WebViewTest, ClientTapHandlingNullWebViewClient) {
  // Note: this test doesn't use WebViewHelper since WebViewHelper creates an
  // internal WebViewClient on demand if the supplied WebViewClient is null.
  WebViewImpl* web_view = static_cast<WebViewImpl*>(
      WebView::Create(nullptr, kWebPageVisibilityStateVisible));
  FrameTestHelpers::TestWebFrameClient web_frame_client;
  FrameTestHelpers::TestWebWidgetClient web_widget_client;
  WebLocalFrame* local_frame = WebLocalFrame::CreateMainFrame(
      web_view, &web_frame_client, nullptr, nullptr);
  web_frame_client.Bind(local_frame);
  blink::WebFrameWidget::Create(&web_widget_client, local_frame);

  WebGestureEvent event(WebInputEvent::kGestureTap, WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 3;
  event.y = 8;
  EXPECT_EQ(WebInputEventResult::kNotHandled,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));
  web_view->Close();
}

TEST_P(WebViewTest, LongPressEmptyDiv) {
  RegisterMockedHttpURLLoad("long_press_empty_div.html");

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "long_press_empty_div.html");
  web_view->SettingsImpl()->SetAlwaysShowContextMenuOnTouch(false);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebGestureEvent event(WebInputEvent::kGestureLongPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 250;
  event.y = 150;

  EXPECT_EQ(WebInputEventResult::kNotHandled,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));
}

TEST_P(WebViewTest, LongPressEmptyDivAlwaysShow) {
  RegisterMockedHttpURLLoad("long_press_empty_div.html");

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "long_press_empty_div.html");
  web_view->SettingsImpl()->SetAlwaysShowContextMenuOnTouch(true);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebGestureEvent event(WebInputEvent::kGestureLongPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 250;
  event.y = 150;

  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));
}

TEST_P(WebViewTest, LongPressObject) {
  RegisterMockedHttpURLLoad("long_press_object.html");

  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "long_press_object.html");
  web_view->SettingsImpl()->SetAlwaysShowContextMenuOnTouch(true);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebGestureEvent event(WebInputEvent::kGestureLongPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 10;
  event.y = 10;

  EXPECT_NE(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));

  HTMLElement* element = ToHTMLElement(
      web_view->MainFrameImpl()->GetDocument().GetElementById("obj"));
  EXPECT_FALSE(element->CanStartSelection());
}

TEST_P(WebViewTest, LongPressObjectFallback) {
  RegisterMockedHttpURLLoad("long_press_object_fallback.html");

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "long_press_object_fallback.html");
  web_view->SettingsImpl()->SetAlwaysShowContextMenuOnTouch(true);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebGestureEvent event(WebInputEvent::kGestureLongPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 10;
  event.y = 10;

  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));

  HTMLElement* element = ToHTMLElement(
      web_view->MainFrameImpl()->GetDocument().GetElementById("obj"));
  EXPECT_TRUE(element->CanStartSelection());
}

TEST_P(WebViewTest, LongPressImage) {
  RegisterMockedHttpURLLoad("long_press_image.html");

  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "long_press_image.html");
  web_view->SettingsImpl()->SetAlwaysShowContextMenuOnTouch(false);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebGestureEvent event(WebInputEvent::kGestureLongPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 10;
  event.y = 10;

  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));
}

TEST_P(WebViewTest, LongPressVideo) {
  RegisterMockedHttpURLLoad("long_press_video.html");

  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "long_press_video.html");
  web_view->SettingsImpl()->SetAlwaysShowContextMenuOnTouch(false);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebGestureEvent event(WebInputEvent::kGestureLongPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 10;
  event.y = 10;

  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));
}

TEST_P(WebViewTest, LongPressLink) {
  RegisterMockedHttpURLLoad("long_press_link.html");

  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "long_press_link.html");
  web_view->SettingsImpl()->SetAlwaysShowContextMenuOnTouch(false);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebGestureEvent event(WebInputEvent::kGestureLongPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 500;
  event.y = 300;

  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));
}

TEST_P(WebViewTest, showContextMenuOnLongPressingLinks) {
  RegisterMockedHttpURLLoad("long_press_links_and_images.html");

  URLTestHelpers::RegisterMockedURLLoad(
      ToKURL("http://www.test.com/foo.png"),
      testing::CoreTestDataPath("white-1x1.png"));
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "long_press_links_and_images.html");

  web_view->SettingsImpl()->SetTouchDragDropEnabled(true);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebString anchor_tag_id = WebString::FromUTF8("anchorTag");
  WebString image_tag_id = WebString::FromUTF8("imageTag");

  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureLongPress, anchor_tag_id));
  EXPECT_STREQ("anchor contextmenu",
               web_view->MainFrameImpl()->GetDocument().Title().Utf8().data());

  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureLongPress, image_tag_id));
  EXPECT_STREQ("image contextmenu",
               web_view->MainFrameImpl()->GetDocument().Title().Utf8().data());
}

TEST_P(WebViewTest, LongPressEmptyEditableSelection) {
  RegisterMockedHttpURLLoad("long_press_empty_editable_selection.html");

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "long_press_empty_editable_selection.html");
  web_view->SettingsImpl()->SetAlwaysShowContextMenuOnTouch(false);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebGestureEvent event(WebInputEvent::kGestureLongPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 10;
  event.y = 10;

  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));
}

TEST_P(WebViewTest, LongPressEmptyNonEditableSelection) {
  RegisterMockedHttpURLLoad("long_press_image.html");

  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "long_press_image.html");
  web_view->Resize(WebSize(500, 500));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebGestureEvent event(WebInputEvent::kGestureLongPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 300;
  event.y = 300;
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();

  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(event)));
  EXPECT_TRUE(frame->SelectionAsText().IsEmpty());
}

TEST_P(WebViewTest, LongPressSelection) {
  RegisterMockedHttpURLLoad("longpress_selection.html");

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "longpress_selection.html");
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebString target = WebString::FromUTF8("target");
  WebString onselectstartfalse = WebString::FromUTF8("onselectstartfalse");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();

  EXPECT_TRUE(
      TapElementById(WebInputEvent::kGestureLongPress, onselectstartfalse));
  EXPECT_EQ("", std::string(frame->SelectionAsText().Utf8().data()));
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureLongPress, target));
  EXPECT_EQ("testword", std::string(frame->SelectionAsText().Utf8().data()));
}

TEST_P(WebViewTest, FinishComposingTextDoesNotDismissHandles) {
  RegisterMockedHttpURLLoad("longpress_selection.html");

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "longpress_selection.html");
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebString target = WebString::FromUTF8("target");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  WebInputMethodController* active_input_method_controller =
      frame->FrameWidget()->GetActiveWebInputMethodController();
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap, target));
  WebVector<WebImeTextSpan> empty_ime_text_spans;
  frame->SetEditableSelectionOffsets(8, 8);
  EXPECT_TRUE(active_input_method_controller->SetComposition(
      "12345", empty_ime_text_spans, WebRange(), 8, 13));
  EXPECT_TRUE(frame->GetFrame()->GetInputMethodController().HasComposition());
  EXPECT_EQ("", std::string(frame->SelectionAsText().Utf8().data()));
  EXPECT_FALSE(frame->GetFrame()->Selection().IsHandleVisible());
  EXPECT_TRUE(frame->GetFrame()->GetInputMethodController().HasComposition());

  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureLongPress, target));
  EXPECT_EQ("testword12345",
            std::string(frame->SelectionAsText().Utf8().data()));
  EXPECT_TRUE(frame->GetFrame()->Selection().IsHandleVisible());
  EXPECT_TRUE(frame->GetFrame()->GetInputMethodController().HasComposition());

  // Check that finishComposingText(KeepSelection) does not dismiss handles.
  active_input_method_controller->FinishComposingText(
      WebInputMethodController::kKeepSelection);
  EXPECT_TRUE(frame->GetFrame()->Selection().IsHandleVisible());
}

#if !defined(OS_MACOSX)
TEST_P(WebViewTest, TouchDoesntSelectEmptyTextarea) {
  RegisterMockedHttpURLLoad("longpress_textarea.html");

  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "longpress_textarea.html");
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebString blanklinestextbox = WebString::FromUTF8("blanklinestextbox");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();

  // Long-press on carriage returns.
  EXPECT_TRUE(
      TapElementById(WebInputEvent::kGestureLongPress, blanklinestextbox));
  EXPECT_TRUE(frame->SelectionAsText().IsEmpty());

  // Double-tap on carriage returns.
  WebGestureEvent event(WebInputEvent::kGestureTap, WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 100;
  event.y = 25;
  event.data.tap.tap_count = 2;

  web_view->HandleInputEvent(WebCoalescedInputEvent(event));
  EXPECT_TRUE(frame->SelectionAsText().IsEmpty());

  HTMLTextAreaElement* text_area_element = ToHTMLTextAreaElement(
      web_view->MainFrameImpl()->GetDocument().GetElementById(
          blanklinestextbox));
  text_area_element->setValue("hello");

  // Long-press past last word of textbox.
  EXPECT_TRUE(
      TapElementById(WebInputEvent::kGestureLongPress, blanklinestextbox));
  EXPECT_TRUE(frame->SelectionAsText().IsEmpty());

  // Double-tap past last word of textbox.
  web_view->HandleInputEvent(WebCoalescedInputEvent(event));
  EXPECT_TRUE(frame->SelectionAsText().IsEmpty());
}
#endif

TEST_P(WebViewTest, LongPressImageTextarea) {
  RegisterMockedHttpURLLoad("longpress_image_contenteditable.html");

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "longpress_image_contenteditable.html");
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebString image = WebString::FromUTF8("purpleimage");

  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureLongPress, image));
  WebRange range = web_view->MainFrameImpl()
                       ->GetInputMethodController()
                       ->GetSelectionOffsets();
  EXPECT_FALSE(range.IsNull());
  EXPECT_EQ(0, range.StartOffset());
  EXPECT_EQ(1, range.length());
}

TEST_P(WebViewTest, BlinkCaretAfterLongPress) {
  RegisterMockedHttpURLLoad("blink_caret_on_typing_after_long_press.html");

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "blink_caret_on_typing_after_long_press.html");
  web_view->Resize(WebSize(640, 480));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebString target = WebString::FromUTF8("target");
  WebLocalFrameImpl* main_frame = web_view->MainFrameImpl();

  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureLongPress, target));
  EXPECT_FALSE(main_frame->GetFrame()->Selection().IsCaretBlinkingSuspended());
}

TEST_P(WebViewTest, BlinkCaretOnClosingContextMenu) {
  RegisterMockedHttpURLLoad("form.html");
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "form.html");

  web_view->SetInitialFocus(false);
  RunPendingTasks();

  // We suspend caret blinking when pressing with mouse right button.
  // Note that we do not send MouseUp event here since it will be consumed
  // by the context menu once it shows up.
  WebMouseEvent mouse_event(WebInputEvent::kMouseDown,
                            WebInputEvent::kNoModifiers,
                            WebInputEvent::kTimeStampForTesting);

  mouse_event.button = WebMouseEvent::Button::kRight;
  mouse_event.SetPositionInWidget(1, 1);
  mouse_event.click_count = 1;
  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));
  RunPendingTasks();

  WebLocalFrameImpl* main_frame = web_view->MainFrameImpl();
  EXPECT_TRUE(main_frame->GetFrame()->Selection().IsCaretBlinkingSuspended());

  // Caret blinking is still suspended after showing context menu.
  web_view->GetWidget()->ShowContextMenu(kMenuSourceMouse);
  EXPECT_TRUE(main_frame->GetFrame()->Selection().IsCaretBlinkingSuspended());

  // Caret blinking will be resumed only after context menu is closed.
  web_view->DidCloseContextMenu();

  EXPECT_FALSE(main_frame->GetFrame()->Selection().IsCaretBlinkingSuspended());
}

TEST_P(WebViewTest, SelectionOnReadOnlyInput) {
  RegisterMockedHttpURLLoad("selection_readonly.html");
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "selection_readonly.html");
  web_view->Resize(WebSize(640, 480));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  std::string test_word = "This text should be selected.";

  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  EXPECT_EQ(test_word, std::string(frame->SelectionAsText().Utf8().data()));

  WebRange range = web_view->MainFrameImpl()
                       ->GetInputMethodController()
                       ->GetSelectionOffsets();
  EXPECT_FALSE(range.IsNull());
  EXPECT_EQ(0, range.StartOffset());
  EXPECT_EQ(static_cast<int>(test_word.length()), range.length());
}

TEST_P(WebViewTest, KeyDownScrollsHandled) {
  RegisterMockedHttpURLLoad("content-width-1000.html");

  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "content-width-1000.html");
  web_view->Resize(WebSize(100, 100));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebKeyboardEvent key_event(WebInputEvent::kRawKeyDown,
                             WebInputEvent::kNoModifiers,
                             WebInputEvent::kTimeStampForTesting);

  // RawKeyDown pagedown should be handled.
  key_event.windows_key_code = VKEY_NEXT;
  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  // Coalesced KeyDown arrow-down should be handled.
  key_event.windows_key_code = VKEY_DOWN;
  key_event.SetType(WebInputEvent::kKeyDown);
  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  // Ctrl-Home should be handled...
  key_event.windows_key_code = VKEY_HOME;
  key_event.SetModifiers(WebInputEvent::kControlKey);
  key_event.SetType(WebInputEvent::kRawKeyDown);
  EXPECT_EQ(WebInputEventResult::kNotHandled,
            web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  // But Ctrl-Down should not.
  key_event.windows_key_code = VKEY_DOWN;
  key_event.SetModifiers(WebInputEvent::kControlKey);
  key_event.SetType(WebInputEvent::kRawKeyDown);
  EXPECT_EQ(WebInputEventResult::kNotHandled,
            web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  // Shift, meta, and alt should not be handled.
  key_event.windows_key_code = VKEY_NEXT;
  key_event.SetModifiers(WebInputEvent::kShiftKey);
  key_event.SetType(WebInputEvent::kRawKeyDown);
  EXPECT_EQ(WebInputEventResult::kNotHandled,
            web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  key_event.windows_key_code = VKEY_NEXT;
  key_event.SetModifiers(WebInputEvent::kMetaKey);
  key_event.SetType(WebInputEvent::kRawKeyDown);
  EXPECT_EQ(WebInputEventResult::kNotHandled,
            web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  key_event.windows_key_code = VKEY_NEXT;
  key_event.SetModifiers(WebInputEvent::kAltKey);
  key_event.SetType(WebInputEvent::kRawKeyDown);
  EXPECT_EQ(WebInputEventResult::kNotHandled,
            web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  // System-key labeled Alt-Down (as in Windows) should do nothing,
  // but non-system-key labeled Alt-Down (as in Mac) should be handled
  // as a page-down.
  key_event.windows_key_code = VKEY_DOWN;
  key_event.SetModifiers(WebInputEvent::kAltKey);
  key_event.is_system_key = true;
  key_event.SetType(WebInputEvent::kRawKeyDown);
  EXPECT_EQ(WebInputEventResult::kNotHandled,
            web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  key_event.windows_key_code = VKEY_DOWN;
  key_event.SetModifiers(WebInputEvent::kAltKey);
  key_event.is_system_key = false;
  key_event.SetType(WebInputEvent::kRawKeyDown);
  EXPECT_EQ(WebInputEventResult::kHandledSystem,
            web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));
}

class MiddleClickAutoscrollWebWidgetClient
    : public FrameTestHelpers::TestWebWidgetClient {
 public:
  // WebWidgetClient methods

  void DidChangeCursor(const WebCursorInfo& cursor) override {
    last_cursor_type_ = cursor.type;
  }

  int GetLastCursorType() const { return last_cursor_type_; }

 private:
  int last_cursor_type_ = 0;
};

TEST_P(WebViewTest, MiddleClickAutoscrollCursor) {
  MiddleClickAutoscrollWebWidgetClient client;
  ScopedMiddleClickAutoscrollForTest middle_click_autoscroll(true);
  RegisterMockedHttpURLLoad("content-width-1000.html");

  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "content-width-1000.html", nullptr, nullptr, &client);
  web_view->Resize(WebSize(100, 100));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  WebMouseEvent mouse_event(WebInputEvent::kMouseDown,
                            WebInputEvent::kNoModifiers,
                            WebInputEvent::kTimeStampForTesting);
  mouse_event.button = WebMouseEvent::Button::kMiddle;
  mouse_event.SetPositionInWidget(1, 1);
  mouse_event.click_count = 1;

  // Start middle-click autoscroll.
  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));
  mouse_event.SetType(WebInputEvent::kMouseUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));

  EXPECT_EQ(MiddlePanningCursor().GetType(), client.GetLastCursorType());

  LocalFrame* local_frame =
      ToWebLocalFrameImpl(web_view->MainFrame())->GetFrame();

  // Even if a plugin tries to change the cursor type, that should be ignored
  // during middle-click autoscroll.
  web_view->GetChromeClient().SetCursorForPlugin(WebCursorInfo(PointerCursor()),
                                                 local_frame);
  EXPECT_EQ(MiddlePanningCursor().GetType(), client.GetLastCursorType());

  // End middle-click autoscroll.
  mouse_event.SetType(WebInputEvent::kMouseDown);
  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));
  mouse_event.SetType(WebInputEvent::kMouseUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));

  web_view->GetChromeClient().SetCursorForPlugin(WebCursorInfo(IBeamCursor()),
                                                 local_frame);
  EXPECT_EQ(IBeamCursor().GetType(), client.GetLastCursorType());
}

static void ConfigueCompositingWebView(WebSettings* settings) {
  settings->SetAcceleratedCompositingEnabled(true);
  settings->SetPreferCompositingToLCDTextEnabled(true);
}

TEST_P(WebViewTest, ShowPressOnTransformedLink) {
  FrameTestHelpers::WebViewHelper web_view_helper;
  WebViewImpl* web_view_impl = web_view_helper.Initialize(
      nullptr, nullptr, nullptr, &ConfigueCompositingWebView);

  int page_width = 640;
  int page_height = 480;
  web_view_impl->Resize(WebSize(page_width, page_height));

  WebURL base_url = URLTestHelpers::ToKURL("http://example.com/");
  FrameTestHelpers::LoadHTMLString(
      web_view_impl->MainFrameImpl(),
      "<a href='http://www.test.com' style='position: absolute; left: 20px; "
      "top: 20px; width: 200px; transform:translateZ(0);'>A link to "
      "highlight</a>",
      base_url);

  WebGestureEvent event(WebInputEvent::kGestureShowPress,
                        WebInputEvent::kNoModifiers,
                        WebInputEvent::kTimeStampForTesting);
  event.source_device = kWebGestureDeviceTouchscreen;
  event.x = 20;
  event.y = 20;

  // Just make sure we don't hit any asserts.
  web_view_impl->HandleInputEvent(WebCoalescedInputEvent(event));
}

class MockAutofillClient : public WebAutofillClient {
 public:
  MockAutofillClient()
      : text_changes_(0),
        text_changes_from_user_gesture_(0),
        user_gesture_notifications_count_(0) {}

  ~MockAutofillClient() override {}

  void TextFieldDidChange(const WebFormControlElement&) override {
    ++text_changes_;

    if (UserGestureIndicator::ProcessingUserGesture())
      ++text_changes_from_user_gesture_;
  }
  void UserGestureObserved() override { ++user_gesture_notifications_count_; }

  void ClearChangeCounts() { text_changes_ = 0; }

  int TextChanges() { return text_changes_; }
  int TextChangesFromUserGesture() { return text_changes_from_user_gesture_; }
  int GetUserGestureNotificationsCount() {
    return user_gesture_notifications_count_;
  }

 private:
  int text_changes_;
  int text_changes_from_user_gesture_;
  int user_gesture_notifications_count_;
};

TEST_P(WebViewTest, LosingFocusDoesNotTriggerAutofillTextChange) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  MockAutofillClient client;
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->SetAutofillClient(&client);
  web_view->SetInitialFocus(false);

  // Set up a composition that needs to be committed.
  WebVector<WebImeTextSpan> empty_ime_text_spans;
  frame->SetEditableSelectionOffsets(4, 10);
  frame->SetCompositionFromExistingText(8, 12, empty_ime_text_spans);
  WebTextInputInfo info = frame->GetInputMethodController()->TextInputInfo();
  EXPECT_EQ(4, info.selection_start);
  EXPECT_EQ(10, info.selection_end);
  EXPECT_EQ(8, info.composition_start);
  EXPECT_EQ(12, info.composition_end);

  // Clear the focus and track that the subsequent composition commit does not
  // trigger a text changed notification for autofill.
  client.ClearChangeCounts();
  web_view->SetFocus(false);
  EXPECT_EQ(0, client.TextChanges());

  frame->SetAutofillClient(nullptr);
}

static void VerifySelectionAndComposition(WebViewImpl* web_view,
                                          int selection_start,
                                          int selection_end,
                                          int composition_start,
                                          int composition_end,
                                          const char* fail_message) {
  WebTextInputInfo info =
      web_view->MainFrameImpl()->GetInputMethodController()->TextInputInfo();
  EXPECT_EQ(selection_start, info.selection_start) << fail_message;
  EXPECT_EQ(selection_end, info.selection_end) << fail_message;
  EXPECT_EQ(composition_start, info.composition_start) << fail_message;
  EXPECT_EQ(composition_end, info.composition_end) << fail_message;
}

TEST_P(WebViewTest, CompositionNotCancelledByBackspace) {
  RegisterMockedHttpURLLoad("composition_not_cancelled_by_backspace.html");
  MockAutofillClient client;
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "composition_not_cancelled_by_backspace.html");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->SetAutofillClient(&client);
  web_view->SetInitialFocus(false);

  // Test both input elements.
  for (int i = 0; i < 2; ++i) {
    // Select composition and do sanity check.
    WebVector<WebImeTextSpan> empty_ime_text_spans;
    frame->SetEditableSelectionOffsets(6, 6);
    WebInputMethodController* active_input_method_controller =
        frame->FrameWidget()->GetActiveWebInputMethodController();
    EXPECT_TRUE(active_input_method_controller->SetComposition(
        "fghij", empty_ime_text_spans, WebRange(), 0, 5));
    frame->SetEditableSelectionOffsets(11, 11);
    VerifySelectionAndComposition(web_view, 11, 11, 6, 11, "initial case");

    // Press Backspace and verify composition didn't get cancelled. This is to
    // verify the fix for crbug.com/429916.
    WebKeyboardEvent key_event(WebInputEvent::kRawKeyDown,
                               WebInputEvent::kNoModifiers,
                               WebInputEvent::kTimeStampForTesting);
    key_event.dom_key = Platform::Current()->DomKeyEnumFromString("\b");
    key_event.windows_key_code = VKEY_BACK;
    web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

    frame->SetEditableSelectionOffsets(6, 6);
    EXPECT_TRUE(active_input_method_controller->SetComposition(
        "fghi", empty_ime_text_spans, WebRange(), 0, 4));
    frame->SetEditableSelectionOffsets(10, 10);
    VerifySelectionAndComposition(web_view, 10, 10, 6, 10,
                                  "after pressing Backspace");

    key_event.SetType(WebInputEvent::kKeyUp);
    web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

    web_view->AdvanceFocus(false);
  }

  frame->SetAutofillClient(nullptr);
}

TEST_P(WebViewTest, FinishComposingTextDoesntTriggerAutofillTextChange) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  MockAutofillClient client;
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->SetAutofillClient(&client);
  web_view->SetInitialFocus(false);

  WebDocument document = web_view->MainFrameImpl()->GetDocument();
  HTMLFormControlElement* form =
      ToHTMLFormControlElement(document.GetElementById("sample"));

  WebInputMethodController* active_input_method_controller =
      frame->FrameWidget()->GetActiveWebInputMethodController();
  // Set up a composition that needs to be committed.
  std::string composition_text("testingtext");

  WebVector<WebImeTextSpan> empty_ime_text_spans;
  active_input_method_controller->SetComposition(
      WebString::FromUTF8(composition_text.c_str()), empty_ime_text_spans,
      WebRange(), 0, composition_text.length());

  WebTextInputInfo info = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(0, info.selection_start);
  EXPECT_EQ((int)composition_text.length(), info.selection_end);
  EXPECT_EQ(0, info.composition_start);
  EXPECT_EQ((int)composition_text.length(), info.composition_end);

  form->SetAutofilled(true);
  client.ClearChangeCounts();

  active_input_method_controller->FinishComposingText(
      WebInputMethodController::kKeepSelection);
  EXPECT_EQ(0, client.TextChanges());

  EXPECT_TRUE(form->IsAutofilled());

  frame->SetAutofillClient(nullptr);
}

TEST_P(WebViewTest,
       SetCompositionFromExistingTextDoesntTriggerAutofillTextChange) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  MockAutofillClient client;
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->SetAutofillClient(&client);
  web_view->SetInitialFocus(false);

  WebVector<WebImeTextSpan> empty_ime_text_spans;

  client.ClearChangeCounts();
  frame->SetCompositionFromExistingText(8, 12, empty_ime_text_spans);

  WebTextInputInfo info = frame->GetInputMethodController()->TextInputInfo();
  EXPECT_EQ("0123456789abcdefghijklmnopqrstuvwxyz",
            std::string(info.value.Utf8().data()));
  EXPECT_EQ(8, info.composition_start);
  EXPECT_EQ(12, info.composition_end);

  EXPECT_EQ(0, client.TextChanges());

  WebDocument document = web_view->MainFrameImpl()->GetDocument();
  EXPECT_EQ(WebString::FromUTF8("none"),
            document.GetElementById("inputEvent").FirstChild().NodeValue());

  frame->SetAutofillClient(nullptr);
}

class ViewCreatingWebViewClient : public FrameTestHelpers::TestWebViewClient {
 public:
  ViewCreatingWebViewClient() : did_focus_called_(false) {}

  // WebViewClient methods
  WebView* CreateView(WebLocalFrame* opener,
                      const WebURLRequest&,
                      const WebWindowFeatures&,
                      const WebString& name,
                      WebNavigationPolicy,
                      bool,
                      WebSandboxFlags) override {
    return web_view_helper_.InitializeWithOpener(opener);
  }

  // WebWidgetClient methods
  void DidFocus() override { did_focus_called_ = true; }

  bool DidFocusCalled() const { return did_focus_called_; }
  WebView* CreatedWebView() const { return web_view_helper_.WebView(); }

 private:
  FrameTestHelpers::WebViewHelper web_view_helper_;
  bool did_focus_called_;
};

TEST_P(WebViewTest, DoNotFocusCurrentFrameOnNavigateFromLocalFrame) {
  ViewCreatingWebViewClient client;
  FrameTestHelpers::WebViewHelper web_view_helper;
  WebViewImpl* web_view_impl = web_view_helper.Initialize(nullptr, &client);

  WebURL base_url = URLTestHelpers::ToKURL("http://example.com/");
  FrameTestHelpers::LoadHTMLString(
      web_view_impl->MainFrameImpl(),
      "<html><body><iframe src=\"about:blank\"></iframe></body></html>",
      base_url);

  // Make a request from a local frame.
  WebURLRequest web_url_request_with_target_start;
  LocalFrame* local_frame =
      ToWebLocalFrameImpl(web_view_impl->MainFrame()->FirstChild())->GetFrame();
  FrameLoadRequest request_with_target_start(
      local_frame->GetDocument(),
      web_url_request_with_target_start.ToResourceRequest(), "_top");
  local_frame->Loader().Load(request_with_target_start);
  EXPECT_FALSE(client.DidFocusCalled());

  web_view_helper.Reset();  // Remove dependency on locally scoped client.
}

TEST_P(WebViewTest, FocusExistingFrameOnNavigate) {
  ViewCreatingWebViewClient client;
  FrameTestHelpers::WebViewHelper web_view_helper;
  WebViewImpl* web_view_impl = web_view_helper.Initialize(nullptr, &client);
  WebLocalFrameImpl* frame = web_view_impl->MainFrameImpl();
  frame->SetName("_start");

  // Make a request that will open a new window
  WebURLRequest web_url_request;
  FrameLoadRequest request(nullptr, web_url_request.ToResourceRequest(),
                           "_blank");
  ToLocalFrame(web_view_impl->GetPage()->MainFrame())->Loader().Load(request);
  ASSERT_TRUE(client.CreatedWebView());
  EXPECT_FALSE(client.DidFocusCalled());

  // Make a request from the new window that will navigate the original window.
  // The original window should be focused.
  WebURLRequest web_url_request_with_target_start;
  FrameLoadRequest request_with_target_start(
      nullptr, web_url_request_with_target_start.ToResourceRequest(), "_start");
  ToLocalFrame(static_cast<WebViewImpl*>(client.CreatedWebView())
                   ->GetPage()
                   ->MainFrame())
      ->Loader()
      .Load(request_with_target_start);
  EXPECT_TRUE(client.DidFocusCalled());

  web_view_helper.Reset();  // Remove dependency on locally scoped client.
}

TEST_P(WebViewTest, DispatchesFocusOutFocusInOnViewToggleFocus) {
  RegisterMockedHttpURLLoad("focusout_focusin_events.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "focusout_focusin_events.html");

  web_view->SetFocus(true);
  web_view->SetFocus(false);
  web_view->SetFocus(true);

  WebElement element =
      web_view->MainFrameImpl()->GetDocument().GetElementById("message");
  EXPECT_STREQ("focusoutfocusin", element.TextContent().Utf8().data());
}

TEST_P(WebViewTest, DispatchesDomFocusOutDomFocusInOnViewToggleFocus) {
  RegisterMockedHttpURLLoad("domfocusout_domfocusin_events.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "domfocusout_domfocusin_events.html");

  web_view->SetFocus(true);
  web_view->SetFocus(false);
  web_view->SetFocus(true);

  WebElement element =
      web_view->MainFrameImpl()->GetDocument().GetElementById("message");
  EXPECT_STREQ("DOMFocusOutDOMFocusIn", element.TextContent().Utf8().data());
}

static void OpenDateTimeChooser(WebView* web_view,
                                HTMLInputElement* input_element) {
  input_element->focus();

  WebKeyboardEvent key_event(WebInputEvent::kRawKeyDown,
                             WebInputEvent::kNoModifiers,
                             WebInputEvent::kTimeStampForTesting);
  key_event.dom_key = Platform::Current()->DomKeyEnumFromString(" ");
  key_event.windows_key_code = VKEY_SPACE;
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));
}

// TODO(crbug.com/605112) This test is crashing on Android (Nexus 4) bot.
#if defined(OS_ANDROID)
TEST_P(WebViewTest, DISABLED_ChooseValueFromDateTimeChooser) {
#else
TEST_P(WebViewTest, ChooseValueFromDateTimeChooser) {
#endif
  ScopedInputMultipleFieldsUIForTest input_multiple_fields_ui(false);
  DateTimeChooserWebViewClient client;
  std::string url = RegisterMockedHttpURLLoad("date_time_chooser.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(url, nullptr, &client);

  Document* document =
      web_view_impl->MainFrameImpl()->GetFrame()->GetDocument();

  HTMLInputElement* input_element;

  input_element = ToHTMLInputElement(document->getElementById("date"));
  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(0);
  client.ClearChooserCompletion();
  EXPECT_STREQ("1970-01-01", input_element->value().Utf8().data());

  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(
      std::numeric_limits<double>::quiet_NaN());
  client.ClearChooserCompletion();
  EXPECT_STREQ("", input_element->value().Utf8().data());

  input_element = ToHTMLInputElement(document->getElementById("datetimelocal"));
  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(0);
  client.ClearChooserCompletion();
  EXPECT_STREQ("1970-01-01T00:00", input_element->value().Utf8().data());

  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(
      std::numeric_limits<double>::quiet_NaN());
  client.ClearChooserCompletion();
  EXPECT_STREQ("", input_element->value().Utf8().data());

  input_element = ToHTMLInputElement(document->getElementById("month"));
  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(0);
  client.ClearChooserCompletion();
  EXPECT_STREQ("1970-01", input_element->value().Utf8().data());

  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(
      std::numeric_limits<double>::quiet_NaN());
  client.ClearChooserCompletion();
  EXPECT_STREQ("", input_element->value().Utf8().data());

  input_element = ToHTMLInputElement(document->getElementById("time"));
  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(0);
  client.ClearChooserCompletion();
  EXPECT_STREQ("00:00", input_element->value().Utf8().data());

  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(
      std::numeric_limits<double>::quiet_NaN());
  client.ClearChooserCompletion();
  EXPECT_STREQ("", input_element->value().Utf8().data());

  input_element = ToHTMLInputElement(document->getElementById("week"));
  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(0);
  client.ClearChooserCompletion();
  EXPECT_STREQ("1970-W01", input_element->value().Utf8().data());

  OpenDateTimeChooser(web_view_impl, input_element);
  client.ChooserCompletion()->DidChooseValue(
      std::numeric_limits<double>::quiet_NaN());
  client.ClearChooserCompletion();
  EXPECT_STREQ("", input_element->value().Utf8().data());

  // Clear the WebViewClient from the webViewHelper to avoid use-after-free in
  // the WebViewHelper destructor.
  web_view_helper_.Reset();
}

TEST_P(WebViewTest, DispatchesFocusBlurOnViewToggle) {
  RegisterMockedHttpURLLoad("focus_blur_events.html");
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "focus_blur_events.html");

  web_view->SetFocus(true);
  web_view->SetFocus(false);
  web_view->SetFocus(true);

  WebElement element =
      web_view->MainFrameImpl()->GetDocument().GetElementById("message");
  // Expect not to see duplication of events.
  EXPECT_STREQ("blurfocus", element.TextContent().Utf8().data());
}

TEST_P(WebViewTest, SmartClipData) {
  static const char kExpectedClipText[] = "\nPrice 10,000,000won";
  static const char kExpectedClipHtml[] =
      "<div id=\"div4\" style=\"padding: 10px; margin: 10px; border: 2px "
      "solid skyblue; float: left; width: 190px; height: 30px; "
      "color: rgb(0, 0, 0); font-family: myahem; font-size: 8px; font-style: "
      "normal; font-variant-ligatures: normal; font-variant-caps: normal; "
      "font-weight: 400; letter-spacing: "
      "normal; orphans: 2; text-align: start; "
      "text-indent: 0px; text-transform: none; white-space: normal; widows: "
      "2; word-spacing: 0px; -webkit-text-stroke-width: 0px; "
      "text-decoration-style: initial; text-decoration-color: initial;\">Air "
      "conditioner</div><div id=\"div5\" style=\"padding: 10px; margin: 10px; "
      "border: 2px solid skyblue; float: left; width: 190px; height: 30px; "
      "color: rgb(0, 0, 0); font-family: myahem; font-size: 8px; font-style: "
      "normal; font-variant-ligatures: normal; font-variant-caps: normal; "
      "font-weight: 400; letter-spacing: normal; orphans: 2; text-align: "
      "start; text-indent: 0px; text-transform: none; white-space: normal; "
      "widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; "
      "text-decoration-style: initial; text-decoration-color: initial;\">Price "
      "10,000,000won</div>";
  WebString clip_text;
  WebString clip_html;
  RegisterMockedHttpURLLoad("Ahem.ttf");
  RegisterMockedHttpURLLoad("smartclip.html");
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "smartclip.html");
  web_view->Resize(WebSize(500, 500));
  web_view->UpdateAllLifecyclePhases();
  WebRect crop_rect(300, 125, 152, 50);
  web_view->MainFrameImpl()->ExtractSmartClipData(crop_rect, clip_text,
                                                  clip_html);
  EXPECT_STREQ(kExpectedClipText, clip_text.Utf8().c_str());
  EXPECT_STREQ(kExpectedClipHtml, clip_html.Utf8().c_str());
}

TEST_P(WebViewTest, SmartClipDataWithPinchZoom) {
  static const char kExpectedClipText[] = "\nPrice 10,000,000won";
  static const char kExpectedClipHtml[] =
      "<div id=\"div4\" style=\"padding: 10px; margin: 10px; border: 2px "
      "solid skyblue; float: left; width: 190px; height: 30px; "
      "color: rgb(0, 0, 0); font-family: myahem; font-size: 8px; font-style: "
      "normal; font-variant-ligatures: normal; font-variant-caps: normal; "
      "font-weight: 400; letter-spacing: "
      "normal; orphans: 2; text-align: start; "
      "text-indent: 0px; text-transform: none; white-space: normal; widows: "
      "2; word-spacing: 0px; -webkit-text-stroke-width: 0px; "
      "text-decoration-style: initial; text-decoration-color: initial;\">Air "
      "conditioner</div><div id=\"div5\" style=\"padding: 10px; margin: 10px; "
      "border: 2px solid skyblue; float: left; width: 190px; height: 30px; "
      "color: rgb(0, 0, 0); font-family: myahem; font-size: 8px; font-style: "
      "normal; font-variant-ligatures: normal; font-variant-caps: normal; "
      "font-weight: 400; letter-spacing: normal; orphans: 2; text-align: "
      "start; text-indent: 0px; text-transform: none; white-space: normal; "
      "widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; "
      "text-decoration-style: initial; text-decoration-color: initial;\">Price "
      "10,000,000won</div>";
  WebString clip_text;
  WebString clip_html;
  RegisterMockedHttpURLLoad("Ahem.ttf");
  RegisterMockedHttpURLLoad("smartclip.html");
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "smartclip.html");
  web_view->Resize(WebSize(500, 500));
  web_view->UpdateAllLifecyclePhases();
  web_view->SetPageScaleFactor(1.5);
  web_view->SetVisualViewportOffset(WebFloatPoint(167, 100));
  WebRect crop_rect(200, 38, 228, 75);
  web_view->MainFrameImpl()->ExtractSmartClipData(crop_rect, clip_text,
                                                  clip_html);
  EXPECT_STREQ(kExpectedClipText, clip_text.Utf8().c_str());
  EXPECT_STREQ(kExpectedClipHtml, clip_html.Utf8().c_str());
}

TEST_P(WebViewTest, SmartClipReturnsEmptyStringsWhenUserSelectIsNone) {
  WebString clip_text;
  WebString clip_html;
  RegisterMockedHttpURLLoad("Ahem.ttf");
  RegisterMockedHttpURLLoad("smartclip_user_select_none.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "smartclip_user_select_none.html");
  web_view->Resize(WebSize(500, 500));
  web_view->UpdateAllLifecyclePhases();
  WebRect crop_rect(0, 0, 100, 100);
  web_view->MainFrameImpl()->ExtractSmartClipData(crop_rect, clip_text,
                                                  clip_html);
  EXPECT_STREQ("", clip_text.Utf8().c_str());
  EXPECT_STREQ("", clip_html.Utf8().c_str());
}

TEST_P(WebViewTest, SmartClipDoesNotCrashPositionReversed) {
  WebString clip_text;
  WebString clip_html;
  RegisterMockedHttpURLLoad("Ahem.ttf");
  RegisterMockedHttpURLLoad("smartclip_reversed_positions.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "smartclip_reversed_positions.html");
  web_view->Resize(WebSize(500, 500));
  web_view->UpdateAllLifecyclePhases();
  // Left upper corner of the rect will be end position in the DOM hierarchy.
  WebRect crop_rect(30, 110, 400, 250);
  // This should not still crash. See crbug.com/589082 for more details.
  web_view->MainFrameImpl()->ExtractSmartClipData(crop_rect, clip_text,
                                                  clip_html);
}

class CreateChildCounterFrameClient
    : public FrameTestHelpers::TestWebFrameClient {
 public:
  CreateChildCounterFrameClient() : count_(0) {}
  WebLocalFrame* CreateChildFrame(WebLocalFrame* parent,
                                  WebTreeScopeType,
                                  const WebString& name,
                                  const WebString& fallback_name,
                                  WebSandboxFlags,
                                  const WebParsedFeaturePolicy&,
                                  const WebFrameOwnerProperties&) override;

  int Count() const { return count_; }

 private:
  int count_;
};

WebLocalFrame* CreateChildCounterFrameClient::CreateChildFrame(
    WebLocalFrame* parent,
    WebTreeScopeType scope,
    const WebString& name,
    const WebString& fallback_name,
    WebSandboxFlags sandbox_flags,
    const WebParsedFeaturePolicy& container_policy,
    const WebFrameOwnerProperties& frame_owner_properties) {
  ++count_;
  return TestWebFrameClient::CreateChildFrame(
      parent, scope, name, fallback_name, sandbox_flags, container_policy,
      frame_owner_properties);
}

TEST_P(WebViewTest, ChangeDisplayMode) {
  RegisterMockedHttpURLLoad("display_mode.html");
  WebView* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "display_mode.html");

  std::string content =
      WebFrameContentDumper::DumpWebViewAsText(web_view, 21).Utf8();
  EXPECT_EQ("regular-ui", content);

  web_view->SetDisplayMode(kWebDisplayModeMinimalUi);
  content = WebFrameContentDumper::DumpWebViewAsText(web_view, 21).Utf8();
  EXPECT_EQ("minimal-ui", content);
  web_view_helper_.Reset();
}

TEST_P(WebViewTest, AddFrameInCloseUnload) {
  CreateChildCounterFrameClient frame_client;
  RegisterMockedHttpURLLoad("add_frame_in_unload.html");
  web_view_helper_.InitializeAndLoad(base_url_ + "add_frame_in_unload.html",
                                     &frame_client);
  web_view_helper_.Reset();
  EXPECT_EQ(0, frame_client.Count());
}

TEST_P(WebViewTest, AddFrameInCloseURLUnload) {
  CreateChildCounterFrameClient frame_client;
  RegisterMockedHttpURLLoad("add_frame_in_unload.html");
  web_view_helper_.InitializeAndLoad(base_url_ + "add_frame_in_unload.html",
                                     &frame_client);
  web_view_helper_.LocalMainFrame()->DispatchUnloadEvent();
  EXPECT_EQ(0, frame_client.Count());
  web_view_helper_.Reset();
}

TEST_P(WebViewTest, AddFrameInNavigateUnload) {
  CreateChildCounterFrameClient frame_client;
  RegisterMockedHttpURLLoad("add_frame_in_unload.html");
  web_view_helper_.InitializeAndLoad(base_url_ + "add_frame_in_unload.html",
                                     &frame_client);
  FrameTestHelpers::LoadFrame(web_view_helper_.WebView()->MainFrameImpl(),
                              "about:blank");
  EXPECT_EQ(0, frame_client.Count());
  web_view_helper_.Reset();
}

TEST_P(WebViewTest, AddFrameInChildInNavigateUnload) {
  CreateChildCounterFrameClient frame_client;
  RegisterMockedHttpURLLoad("add_frame_in_unload_wrapper.html");
  RegisterMockedHttpURLLoad("add_frame_in_unload.html");
  web_view_helper_.InitializeAndLoad(
      base_url_ + "add_frame_in_unload_wrapper.html", &frame_client);
  FrameTestHelpers::LoadFrame(web_view_helper_.WebView()->MainFrameImpl(),
                              "about:blank");
  EXPECT_EQ(1, frame_client.Count());
  web_view_helper_.Reset();
}

class TouchEventHandlerWebWidgetClient
    : public FrameTestHelpers::TestWebWidgetClient {
 public:
  // WebWidgetClient methods
  void HasTouchEventHandlers(bool state) override {
    has_touch_event_handler_count_[state]++;
  }

  // Local methods
  TouchEventHandlerWebWidgetClient() : has_touch_event_handler_count_() {}

  int GetAndResetHasTouchEventHandlerCallCount(bool state) {
    int value = has_touch_event_handler_count_[state];
    has_touch_event_handler_count_[state] = 0;
    return value;
  }

 private:
  int has_touch_event_handler_count_[2];
};

// This test verifies that WebWidgetClient::hasTouchEventHandlers is called
// accordingly for various calls to EventHandlerRegistry::did{Add|Remove|
// RemoveAll}EventHandler(..., TouchEvent). Verifying that those calls are made
// correctly is the job of LayoutTests/fast/events/event-handler-count.html.
TEST_P(WebViewTest, HasTouchEventHandlers) {
  TouchEventHandlerWebWidgetClient client;
  // We need to create a LayerTreeView for the client before loading the page,
  // otherwise ChromeClient will default to assuming there are touch handlers.
  WebLayerTreeView* layer_tree_view = client.InitializeLayerTreeView();
  std::string url = RegisterMockedHttpURLLoad("has_touch_event_handlers.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(url, nullptr, nullptr, &client);
  ASSERT_TRUE(layer_tree_view);
  const EventHandlerRegistry::EventHandlerClass kTouchEvent =
      EventHandlerRegistry::kTouchStartOrMoveEventBlocking;

  // The page is initialized with at least one no-handlers call.
  // In practice we get two such calls because WebViewHelper::initializeAndLoad
  // first initializes an empty frame, and then loads a document into it, so
  // there are two FrameLoader::commitProvisionalLoad calls.
  EXPECT_LT(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Adding the first document handler results in a has-handlers call.
  Document* document =
      web_view_impl->MainFrameImpl()->GetFrame()->GetDocument();
  EventHandlerRegistry* registry =
      &document->GetPage()->GetEventHandlerRegistry();
  registry->DidAddEventHandler(*document, kTouchEvent);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Adding another handler has no effect.
  registry->DidAddEventHandler(*document, kTouchEvent);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Removing the duplicate handler has no effect.
  registry->DidRemoveEventHandler(*document, kTouchEvent);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Removing the final handler results in a no-handlers call.
  registry->DidRemoveEventHandler(*document, kTouchEvent);
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Adding a handler on a div results in a has-handlers call.
  Element* parent_div = document->getElementById("parentdiv");
  DCHECK(parent_div);
  registry->DidAddEventHandler(*parent_div, kTouchEvent);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Adding a duplicate handler on the div, clearing all document handlers
  // (of which there are none) and removing the extra handler on the div
  // all have no effect.
  registry->DidAddEventHandler(*parent_div, kTouchEvent);
  registry->DidRemoveAllEventHandlers(*document);
  registry->DidRemoveEventHandler(*parent_div, kTouchEvent);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Removing the final handler on the div results in a no-handlers call.
  registry->DidRemoveEventHandler(*parent_div, kTouchEvent);
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Adding two handlers then clearing them in a single call results in a
  // has-handlers then no-handlers call.
  registry->DidAddEventHandler(*parent_div, kTouchEvent);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(true));
  registry->DidAddEventHandler(*parent_div, kTouchEvent);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));
  registry->DidRemoveAllEventHandlers(*parent_div);
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Adding a handler inside of a child iframe results in a has-handlers call.
  Element* child_frame = document->getElementById("childframe");
  DCHECK(child_frame);
  Document* child_document =
      ToHTMLIFrameElement(child_frame)->contentDocument();
  Element* child_div = child_document->getElementById("childdiv");
  DCHECK(child_div);
  registry->DidAddEventHandler(*child_div, kTouchEvent);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Adding and clearing handlers in the parent doc or elsewhere in the child
  // doc has no impact.
  registry->DidAddEventHandler(*document, kTouchEvent);
  registry->DidAddEventHandler(*child_frame, kTouchEvent);
  registry->DidAddEventHandler(*child_document, kTouchEvent);
  registry->DidRemoveAllEventHandlers(*document);
  registry->DidRemoveAllEventHandlers(*child_frame);
  registry->DidRemoveAllEventHandlers(*child_document);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Removing the final handler inside the child frame results in a no-handlers
  // call.
  registry->DidRemoveAllEventHandlers(*child_div);
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Adding a handler inside the child frame results in a has-handlers call.
  registry->DidAddEventHandler(*child_document, kTouchEvent);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Adding a handler in the parent document and removing the one in the frame
  // has no effect.
  registry->DidAddEventHandler(*child_frame, kTouchEvent);
  registry->DidRemoveEventHandler(*child_document, kTouchEvent);
  registry->DidRemoveAllEventHandlers(*child_document);
  registry->DidRemoveAllEventHandlers(*document);
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Now removing the handler in the parent document results in a no-handlers
  // call.
  registry->DidRemoveEventHandler(*child_frame, kTouchEvent);
  EXPECT_EQ(1, client.GetAndResetHasTouchEventHandlerCallCount(false));
  EXPECT_EQ(0, client.GetAndResetHasTouchEventHandlerCallCount(true));

  // Free the webView before the TouchEventHandlerWebViewClient gets freed.
  web_view_helper_.Reset();
}

// This test checks that deleting nodes which have only non-JS-registered touch
// handlers also removes them from the event handler registry. Note that this
// is different from detaching and re-attaching the same node, which is covered
// by layout tests under fast/events/.
TEST_P(WebViewTest, DeleteElementWithRegisteredHandler) {
  std::string url = RegisterMockedHttpURLLoad("simple_div.html");
  WebViewImpl* web_view_impl = web_view_helper_.InitializeAndLoad(url);

  Persistent<Document> document =
      web_view_impl->MainFrameImpl()->GetFrame()->GetDocument();
  Element* div = document->getElementById("div");
  EventHandlerRegistry& registry =
      document->GetPage()->GetEventHandlerRegistry();

  registry.DidAddEventHandler(*div, EventHandlerRegistry::kScrollEvent);
  EXPECT_TRUE(registry.HasEventHandlers(EventHandlerRegistry::kScrollEvent));

  DummyExceptionStateForTesting exception_state;
  div->remove(exception_state);

  // For oilpan we have to force a GC to ensure the event handlers have been
  // removed when checking below. We do a precise GC (collectAllGarbage does not
  // scan the stack) to ensure the div element dies. This is also why the
  // Document is in a Persistent since we want that to stay around.
  ThreadState::Current()->CollectAllGarbage();

  EXPECT_FALSE(registry.HasEventHandlers(EventHandlerRegistry::kScrollEvent));
}

// This test verifies the text input flags are correctly exposed to script.
TEST_P(WebViewTest, TextInputFlags) {
  std::string url = RegisterMockedHttpURLLoad("text_input_flags.html");
  WebViewImpl* web_view_impl = web_view_helper_.InitializeAndLoad(url);
  web_view_impl->SetInitialFocus(false);

  WebLocalFrameImpl* frame = web_view_impl->MainFrameImpl();
  WebInputMethodController* active_input_method_controller =
      frame->GetInputMethodController();
  Document* document = frame->GetFrame()->GetDocument();

  // (A) <input>
  // (A.1) Verifies autocorrect/autocomplete/spellcheck flags are Off and
  // autocapitalize is set to none.
  HTMLInputElement* input_element =
      ToHTMLInputElement(document->getElementById("input"));
  document->SetFocusedElement(
      input_element,
      FocusParams(SelectionBehaviorOnFocus::kNone, kWebFocusTypeNone, nullptr));
  web_view_impl->SetFocus(true);
  WebTextInputInfo info1 = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(kWebTextInputFlagAutocompleteOff | kWebTextInputFlagAutocorrectOff |
                kWebTextInputFlagSpellcheckOff |
                kWebTextInputFlagAutocapitalizeNone,
            info1.flags);

  // (A.2) Verifies autocorrect/autocomplete/spellcheck flags are On and
  // autocapitalize is set to sentences.
  input_element = ToHTMLInputElement(document->getElementById("input2"));
  document->SetFocusedElement(
      input_element,
      FocusParams(SelectionBehaviorOnFocus::kNone, kWebFocusTypeNone, nullptr));
  web_view_impl->SetFocus(true);
  WebTextInputInfo info2 = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(kWebTextInputFlagAutocompleteOn | kWebTextInputFlagAutocorrectOn |
                kWebTextInputFlagSpellcheckOn |
                kWebTextInputFlagAutocapitalizeSentences,
            info2.flags);

  // (B) <textarea> Verifies the default text input flags are
  // WebTextInputFlagAutocapitalizeSentences.
  HTMLTextAreaElement* text_area_element =
      ToHTMLTextAreaElement(document->getElementById("textarea"));
  document->SetFocusedElement(
      text_area_element,
      FocusParams(SelectionBehaviorOnFocus::kNone, kWebFocusTypeNone, nullptr));
  web_view_impl->SetFocus(true);
  WebTextInputInfo info3 = active_input_method_controller->TextInputInfo();
  EXPECT_EQ(kWebTextInputFlagAutocapitalizeSentences, info3.flags);

  // (C) Verifies the WebTextInputInfo's don't equal.
  EXPECT_FALSE(info1.Equals(info2));
  EXPECT_FALSE(info2.Equals(info3));

  // Free the webView before freeing the NonUserInputTextUpdateWebViewClient.
  web_view_helper_.Reset();
}

// Check that the WebAutofillClient is correctly notified about first user
// gestures after load, following various input events.
TEST_P(WebViewTest, FirstUserGestureObservedKeyEvent) {
  RegisterMockedHttpURLLoad("form.html");
  MockAutofillClient client;
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "form.html");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->SetAutofillClient(&client);
  web_view->SetInitialFocus(false);

  EXPECT_EQ(0, client.GetUserGestureNotificationsCount());

  WebKeyboardEvent key_event(WebInputEvent::kRawKeyDown,
                             WebInputEvent::kNoModifiers,
                             WebInputEvent::kTimeStampForTesting);
  key_event.dom_key = Platform::Current()->DomKeyEnumFromString(" ");
  key_event.windows_key_code = VKEY_SPACE;
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));
  key_event.SetType(WebInputEvent::kKeyUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));

  EXPECT_EQ(2, client.GetUserGestureNotificationsCount());
  frame->SetAutofillClient(nullptr);
}

TEST_P(WebViewTest, FirstUserGestureObservedMouseEvent) {
  RegisterMockedHttpURLLoad("form.html");
  MockAutofillClient client;
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "form.html");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->SetAutofillClient(&client);
  web_view->SetInitialFocus(false);

  EXPECT_EQ(0, client.GetUserGestureNotificationsCount());

  WebMouseEvent mouse_event(WebInputEvent::kMouseDown,
                            WebInputEvent::kNoModifiers,
                            WebInputEvent::kTimeStampForTesting);
  mouse_event.button = WebMouseEvent::Button::kLeft;
  mouse_event.SetPositionInWidget(1, 1);
  mouse_event.click_count = 1;
  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));
  mouse_event.SetType(WebInputEvent::kMouseUp);
  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));

  EXPECT_EQ(1, client.GetUserGestureNotificationsCount());
  frame->SetAutofillClient(nullptr);
}

TEST_P(WebViewTest, CompositionIsUserGesture) {
  RegisterMockedHttpURLLoad("input_field_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_populated.html");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  MockAutofillClient client;
  frame->SetAutofillClient(&client);
  web_view->SetInitialFocus(false);

  EXPECT_TRUE(
      frame->FrameWidget()->GetActiveWebInputMethodController()->SetComposition(
          WebString::FromUTF8(std::string("hello").c_str()),
          WebVector<WebImeTextSpan>(), WebRange(), 3, 3));
  EXPECT_EQ(1, client.TextChangesFromUserGesture());
  EXPECT_FALSE(UserGestureIndicator::ProcessingUserGesture());
  EXPECT_TRUE(frame->HasMarkedText());

  frame->SetAutofillClient(nullptr);
}

TEST_P(WebViewTest, CompareSelectAllToContentAsText) {
  RegisterMockedHttpURLLoad("longpress_selection.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "longpress_selection.html");

  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->ExecuteScript(WebScriptSource(
      WebString::FromUTF8("document.execCommand('SelectAll', false, null)")));
  std::string actual = frame->SelectionAsText().Utf8();

  const int kMaxOutputCharacters = 1024;
  std::string expected =
      WebFrameContentDumper::DumpWebViewAsText(web_view, kMaxOutputCharacters)
          .Utf8();
  EXPECT_EQ(expected, actual);
}

TEST_P(WebViewTest, AutoResizeSubtreeLayout) {
  std::string url = RegisterMockedHttpURLLoad("subtree-layout.html");
  WebViewImpl* web_view = web_view_helper_.Initialize();

  web_view->EnableAutoResizeMode(WebSize(200, 200), WebSize(200, 200));
  LoadFrame(web_view->MainFrameImpl(), url);

  LocalFrameView* frame_view =
      web_view_helper_.LocalMainFrame()->GetFrameView();

  // Auto-resizing used to DCHECK(needsLayout()) in LayoutBlockFlow::layout.
  // This EXPECT is merely a dummy. The real test is that we don't trigger
  // asserts in debug builds.
  EXPECT_FALSE(frame_view->NeedsLayout());
};

TEST_P(WebViewTest, PreferredSize) {
  std::string url = base_url_ + "specify_size.html?100px:100px";
  URLTestHelpers::RegisterMockedURLLoad(
      ToKURL(url), testing::CoreTestDataPath("specify_size.html"));
  WebView* web_view = web_view_helper_.InitializeAndLoad(url);

  WebSize size = web_view->ContentsPreferredMinimumSize();
  EXPECT_EQ(100, size.width);
  EXPECT_EQ(100, size.height);

  web_view->SetZoomLevel(WebView::ZoomFactorToZoomLevel(2.0));
  size = web_view->ContentsPreferredMinimumSize();
  EXPECT_EQ(200, size.width);
  EXPECT_EQ(200, size.height);

  // Verify that both width and height are rounded (in this case up)
  web_view->SetZoomLevel(WebView::ZoomFactorToZoomLevel(0.9995));
  size = web_view->ContentsPreferredMinimumSize();
  EXPECT_EQ(100, size.width);
  EXPECT_EQ(100, size.height);

  // Verify that both width and height are rounded (in this case down)
  web_view->SetZoomLevel(WebView::ZoomFactorToZoomLevel(1.0005));
  size = web_view->ContentsPreferredMinimumSize();
  EXPECT_EQ(100, size.width);
  EXPECT_EQ(100, size.height);

  url = base_url_ + "specify_size.html?1.5px:1.5px";
  URLTestHelpers::RegisterMockedURLLoad(
      ToKURL(url), testing::CoreTestDataPath("specify_size.html"));
  web_view = web_view_helper_.InitializeAndLoad(url);

  web_view->SetZoomLevel(WebView::ZoomFactorToZoomLevel(1));
  size = web_view->ContentsPreferredMinimumSize();
  EXPECT_EQ(2, size.width);
  EXPECT_EQ(2, size.height);
}

TEST_P(WebViewTest, PreferredSizeDirtyLayout) {
  std::string url = base_url_ + "specify_size.html?100px:100px";
  URLTestHelpers::RegisterMockedURLLoad(
      ToKURL(url), testing::CoreTestDataPath("specify_size.html"));
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(url);
  WebElement document_element =
      web_view->MainFrameImpl()->GetDocument().DocumentElement();

  WebSize size = web_view->ContentsPreferredMinimumSize();
  EXPECT_EQ(100, size.width);
  EXPECT_EQ(100, size.height);

  document_element.SetAttribute("style", "display: none");

  size = web_view->ContentsPreferredMinimumSize();
  EXPECT_EQ(0, size.width);
  EXPECT_EQ(0, size.height);
}

TEST_P(WebViewTest, PreferredSizeWithGrid) {
  WebViewImpl* web_view = web_view_helper_.Initialize();
  WebURL base_url = URLTestHelpers::ToKURL("http://example.com/");
  FrameTestHelpers::LoadHTMLString(web_view->MainFrameImpl(),
                                   R"HTML(<!DOCTYPE html>
    <style>
      html { writing-mode: vertical-rl; }
      body { margin: 0px; }
    </style>
    <div style="width: 100px;">
      <div style="display: grid; width: 100%;">
        <div style="writing-mode: horizontal-tb; height: 100px;"></div>
      </div>
    </div>
                                   )HTML",
                                   base_url);

  WebSize size = web_view->ContentsPreferredMinimumSize();
  EXPECT_EQ(100, size.width);
  EXPECT_EQ(100, size.height);
}

class UnhandledTapWebViewClient : public FrameTestHelpers::TestWebViewClient {
 public:
  void ShowUnhandledTapUIIfNeeded(const WebTappedInfo& tapped_info) override {
    was_called_ = true;
    tapped_position_ = tapped_info.Position();
    tapped_node_ = tapped_info.GetNode();
    page_changed_ = tapped_info.PageChanged();
  }
  bool GetWasCalled() const { return was_called_; }
  int GetTappedXPos() const { return tapped_position_.X(); }
  int GetTappedYPos() const { return tapped_position_.Y(); }
  bool IsTappedNodeNull() const { return tapped_node_.IsNull(); }
  const WebNode& GetWebNode() const { return tapped_node_; }
  bool GetPageChanged() const { return page_changed_; }
  void Reset() {
    was_called_ = false;
    tapped_position_ = IntPoint();
    tapped_node_ = WebNode();
    page_changed_ = false;
  }

 private:
  bool was_called_ = false;
  IntPoint tapped_position_;
  WebNode tapped_node_;
  bool page_changed_ = false;
};

TEST_P(WebViewTest, ShowUnhandledTapUIIfNeeded) {
  std::string test_file = "show_unhandled_tap.html";
  RegisterMockedHttpURLLoad("Ahem.ttf");
  RegisterMockedHttpURLLoad(test_file);
  UnhandledTapWebViewClient client;
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + test_file, nullptr, &client);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();

  // Scroll the bottom into view so we can distinguish window coordinates from
  // document coordinates.
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,
                             WebString::FromUTF8("bottom")));
  EXPECT_TRUE(client.GetWasCalled());
  EXPECT_EQ(64, client.GetTappedXPos());
  EXPECT_EQ(278, client.GetTappedYPos());
  EXPECT_FALSE(client.IsTappedNodeNull());
  EXPECT_TRUE(client.GetWebNode().IsTextNode());

  // Test basic tap handling and notification.
  client.Reset();
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,
                             WebString::FromUTF8("target")));
  EXPECT_TRUE(client.GetWasCalled());
  EXPECT_EQ(144, client.GetTappedXPos());
  EXPECT_EQ(82, client.GetTappedYPos());
  EXPECT_FALSE(client.IsTappedNodeNull());
  EXPECT_TRUE(client.GetWebNode().IsTextNode());
  // Make sure the returned text node has the parent element that was our
  // target.
  EXPECT_EQ(web_view->MainFrameImpl()->GetDocument().GetElementById("target"),
            client.GetWebNode().ParentNode());

  // Test correct conversion of coordinates to viewport space under pinch-zoom.
  web_view->SetPageScaleFactor(2);
  web_view->SetVisualViewportOffset(WebFloatPoint(50, 20));
  client.Reset();
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,
                             WebString::FromUTF8("target")));
  EXPECT_TRUE(client.GetWasCalled());
  EXPECT_EQ(188, client.GetTappedXPos());
  EXPECT_EQ(124, client.GetTappedYPos());

  web_view_helper_.Reset();  // Remove dependency on locally scoped client.
}

#define TEST_EACH_MOUSEEVENT(handler, EXPECT)                                 \
  frame->ExecuteScript(WebScriptSource("setTest('mousedown-" handler "');")); \
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,                      \
                             WebString::FromUTF8("target")));                 \
  EXPECT_##EXPECT(client.GetPageChanged());                                   \
  client.Reset();                                                             \
  frame->ExecuteScript(WebScriptSource("setTest('mouseup-" handler "');"));   \
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,                      \
                             WebString::FromUTF8("target")));                 \
  EXPECT_##EXPECT(client.GetPageChanged());                                   \
  client.Reset();                                                             \
  frame->ExecuteScript(WebScriptSource("setTest('mousemove-" handler "');")); \
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,                      \
                             WebString::FromUTF8("target")));                 \
  EXPECT_##EXPECT(client.GetPageChanged());                                   \
  client.Reset();                                                             \
  frame->ExecuteScript(WebScriptSource("setTest('click-" handler "');"));     \
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,                      \
                             WebString::FromUTF8("target")));                 \
  EXPECT_##EXPECT(client.GetPageChanged());

TEST_P(WebViewTest, ShowUnhandledTapUIIfNeededWithMutateDom) {
  std::string test_file = "show_unhandled_tap.html";
  RegisterMockedHttpURLLoad("Ahem.ttf");
  RegisterMockedHttpURLLoad(test_file);
  UnhandledTapWebViewClient client;
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + test_file, nullptr, &client);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();

  // Test dom mutation.
  TEST_EACH_MOUSEEVENT("mutateDom", TRUE);

  // Test without any DOM mutation.
  client.Reset();
  frame->ExecuteScript(WebScriptSource("setTest('none');"));
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,
                             WebString::FromUTF8("target")));
  EXPECT_FALSE(client.GetPageChanged());

  web_view_helper_.Reset();  // Remove dependency on locally scoped client.
}

TEST_P(WebViewTest, ShowUnhandledTapUIIfNeededWithMutateStyle) {
  std::string test_file = "show_unhandled_tap.html";
  RegisterMockedHttpURLLoad("Ahem.ttf");
  RegisterMockedHttpURLLoad(test_file);
  UnhandledTapWebViewClient client;
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + test_file, nullptr, &client);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();

  // Test style mutation.
  TEST_EACH_MOUSEEVENT("mutateStyle", TRUE);

  // Test checkbox:indeterminate style mutation.
  TEST_EACH_MOUSEEVENT("mutateIndeterminate", TRUE);

  // Test click div with :active style but it is not covered for now.
  client.Reset();
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,
                             WebString::FromUTF8("style_active")));
  EXPECT_FALSE(client.GetPageChanged());

  // Test without any style mutation.
  client.Reset();
  frame->ExecuteScript(WebScriptSource("setTest('none');"));
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,
                             WebString::FromUTF8("target")));
  EXPECT_FALSE(client.GetPageChanged());

  web_view_helper_.Reset();  // Remove dependency on locally scoped client.
}

TEST_P(WebViewTest, ShowUnhandledTapUIIfNeededWithPreventDefault) {
  std::string test_file = "show_unhandled_tap.html";
  RegisterMockedHttpURLLoad("Ahem.ttf");
  RegisterMockedHttpURLLoad(test_file);
  UnhandledTapWebViewClient client;
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + test_file, nullptr, &client);
  web_view->Resize(WebSize(500, 300));
  web_view->UpdateAllLifecyclePhases();
  RunPendingTasks();
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();

  // Testswallowing.
  TEST_EACH_MOUSEEVENT("preventDefault", FALSE);

  // Test without any preventDefault.
  client.Reset();
  frame->ExecuteScript(WebScriptSource("setTest('none');"));
  EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap,
                             WebString::FromUTF8("target")));
  EXPECT_TRUE(client.GetWasCalled());

  web_view_helper_.Reset();  // Remove dependency on locally scoped client.
}

TEST_P(WebViewTest, StopLoadingIfJavaScriptURLReturnsNoStringResult) {
  ViewCreatingWebViewClient client;
  FrameTestHelpers::WebViewHelper main_web_view;
  main_web_view.InitializeAndLoad("about:blank", nullptr, &client);

  WebLocalFrame* frame = main_web_view.WebView()->MainFrameImpl();
  v8::HandleScope scope(v8::Isolate::GetCurrent());
  v8::Local<v8::Value> v8_value =
      frame->ExecuteScriptAndReturnValue(WebScriptSource(
          "var win = window.open('javascript:false'); win.document"));
  ASSERT_TRUE(v8_value->IsObject());
  Document* document =
      V8Document::ToImplWithTypeCheck(v8::Isolate::GetCurrent(), v8_value);
  ASSERT_TRUE(document);
  EXPECT_FALSE(document->GetFrame()->IsLoading());
}

#if defined(OS_MACOSX)
TEST_P(WebViewTest, WebSubstringUtil) {
  RegisterMockedHttpURLLoad("content_editable_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "content_editable_populated.html");
  web_view->GetSettings()->SetDefaultFontSize(12);
  web_view->Resize(WebSize(400, 400));
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();

  WebPoint baseline_point;
  NSAttributedString* result = WebSubstringUtil::AttributedSubstringInRange(
      frame, 10, 3, &baseline_point);
  ASSERT_TRUE(!!result);

  WebPoint point(baseline_point.x, baseline_point.y);
  result = WebSubstringUtil::AttributedWordAtPoint(frame->FrameWidget(), point,
                                                   baseline_point);
  ASSERT_TRUE(!!result);

  web_view->SetZoomLevel(3);

  result = WebSubstringUtil::AttributedSubstringInRange(frame, 5, 5,
                                                        &baseline_point);
  ASSERT_TRUE(!!result);

  point = WebPoint(baseline_point.x, baseline_point.y);
  result = WebSubstringUtil::AttributedWordAtPoint(frame->FrameWidget(), point,
                                                   baseline_point);
  ASSERT_TRUE(!!result);
}

TEST_P(WebViewTest, WebSubstringUtilPinchZoom) {
  RegisterMockedHttpURLLoad("content_editable_populated.html");
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "content_editable_populated.html");
  web_view->GetSettings()->SetDefaultFontSize(12);
  web_view->Resize(WebSize(400, 400));
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  NSAttributedString* result = nil;

  WebPoint baseline_point;
  result = WebSubstringUtil::AttributedSubstringInRange(frame, 10, 3,
                                                        &baseline_point);
  ASSERT_TRUE(!!result);

  web_view->SetPageScaleFactor(3);

  WebPoint point_after_zoom;
  result = WebSubstringUtil::AttributedSubstringInRange(frame, 10, 3,
                                                        &point_after_zoom);
  ASSERT_TRUE(!!result);

  // We won't have moved by a full factor of 3 because of the translations, but
  // we should move by a factor of >2.
  EXPECT_LT(2 * baseline_point.x, point_after_zoom.x);
  EXPECT_LT(2 * baseline_point.y, point_after_zoom.y);
}

TEST_P(WebViewTest, WebSubstringUtilIframe) {
  RegisterMockedHttpURLLoad("single_iframe.html");
  RegisterMockedHttpURLLoad("visible_iframe.html");
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "single_iframe.html");
  web_view->GetSettings()->SetDefaultFontSize(12);
  web_view->GetSettings()->SetJavaScriptEnabled(true);
  web_view->Resize(WebSize(400, 400));
  WebLocalFrameImpl* main_frame = web_view->MainFrameImpl();
  WebLocalFrameImpl* child_frame = WebLocalFrameImpl::FromFrame(
      ToLocalFrame(main_frame->GetFrame()->Tree().FirstChild()));

  WebPoint baseline_point;
  NSAttributedString* result = WebSubstringUtil::AttributedSubstringInRange(
      child_frame, 11, 7, &baseline_point);
  ASSERT_NE(result, nullptr);

  WebPoint point(baseline_point.x, baseline_point.y);
  result = WebSubstringUtil::AttributedWordAtPoint(main_frame->FrameWidget(),
                                                   point, baseline_point);
  ASSERT_NE(result, nullptr);

  int y_before_change = baseline_point.y;

  // Now move the <iframe> down by 100px.
  main_frame->ExecuteScript(WebScriptSource(
      "document.querySelector('iframe').style.marginTop = '100px';"));

  point = WebPoint(point.x, point.y + 100);
  result = WebSubstringUtil::AttributedWordAtPoint(main_frame->FrameWidget(),
                                                   point, baseline_point);
  ASSERT_NE(result, nullptr);

  EXPECT_EQ(y_before_change, baseline_point.y - 100);
}

#endif

TEST_P(WebViewTest, PasswordFieldEditingIsUserGesture) {
  RegisterMockedHttpURLLoad("input_field_password.html");
  MockAutofillClient client;
  WebViewImpl* web_view = web_view_helper_.InitializeAndLoad(
      base_url_ + "input_field_password.html");
  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  frame->SetAutofillClient(&client);
  web_view->SetInitialFocus(false);

  WebVector<WebImeTextSpan> empty_ime_text_spans;

  EXPECT_TRUE(
      frame->FrameWidget()->GetActiveWebInputMethodController()->CommitText(
          WebString::FromUTF8(std::string("hello").c_str()),
          empty_ime_text_spans, WebRange(), 0));
  EXPECT_EQ(1, client.TextChangesFromUserGesture());
  EXPECT_FALSE(UserGestureIndicator::ProcessingUserGesture());
  frame->SetAutofillClient(nullptr);
}

// Verify that a WebView created with a ScopedPagePauser already on the
// stack defers its loads.
TEST_P(WebViewTest, CreatedDuringPagePause) {
  {
    WebViewImpl* web_view = web_view_helper_.Initialize();
    EXPECT_FALSE(web_view->GetPage()->Paused());
  }

  {
    ScopedPagePauser pauser;
    WebViewImpl* web_view = web_view_helper_.Initialize();
    EXPECT_TRUE(web_view->GetPage()->Paused());
  }
}

// Make sure the SubframeBeforeUnloadUseCounter is only incremented on subframe
// unloads. crbug.com/635029.
TEST_P(WebViewTest, SubframeBeforeUnloadUseCounter) {
  RegisterMockedHttpURLLoad("visible_iframe.html");
  RegisterMockedHttpURLLoad("single_iframe.html");
  WebViewImpl* web_view =
      web_view_helper_.InitializeAndLoad(base_url_ + "single_iframe.html");

  WebLocalFrame* frame = web_view_helper_.LocalMainFrame();
  Document* document =
      ToLocalFrame(web_view_helper_.WebView()->GetPage()->MainFrame())
          ->GetDocument();

  // Add a beforeunload handler in the main frame. Make sure firing
  // beforeunload doesn't increment the subframe use counter.
  {
    frame->ExecuteScript(
        WebScriptSource("addEventListener('beforeunload', function() {});"));
    web_view->MainFrame()->ToWebLocalFrame()->DispatchBeforeUnloadEvent(false);
    EXPECT_FALSE(UseCounter::IsCounted(*document,
                                       WebFeature::kSubFrameBeforeUnloadFired));
  }

  // Add a beforeunload handler in the iframe and dispatch. Make sure we do
  // increment the use counter for subframe beforeunloads.
  {
    frame->ExecuteScript(WebScriptSource(
        "document.getElementsByTagName('iframe')[0].contentWindow."
        "addEventListener('beforeunload', function() {});"));
    web_view->MainFrame()
        ->FirstChild()
        ->ToWebLocalFrame()
        ->DispatchBeforeUnloadEvent(false);

    Document* child_document = ToLocalFrame(web_view_helper_.WebView()
                                                ->GetPage()
                                                ->MainFrame()
                                                ->Tree()
                                                .FirstChild())
                                   ->GetDocument();
    EXPECT_TRUE(UseCounter::IsCounted(*child_document,
                                      WebFeature::kSubFrameBeforeUnloadFired));
  }
}

// Verify that page loads are deferred until all ScopedPageLoadDeferrers are
// destroyed.
TEST_P(WebViewTest, NestedPagePauses) {
  WebViewImpl* web_view = web_view_helper_.Initialize();
  EXPECT_FALSE(web_view->GetPage()->Paused());

  {
    ScopedPagePauser pauser;
    EXPECT_TRUE(web_view->GetPage()->Paused());

    {
      ScopedPagePauser pauser2;
      EXPECT_TRUE(web_view->GetPage()->Paused());
    }

    EXPECT_TRUE(web_view->GetPage()->Paused());
  }

  EXPECT_FALSE(web_view->GetPage()->Paused());
}

TEST_P(WebViewTest, ClosingPageIsPaused) {
  WebViewImpl* web_view = web_view_helper_.Initialize();
  Page* page = web_view_helper_.WebView()->GetPage();
  EXPECT_FALSE(page->Paused());

  web_view->SetOpenedByDOM();

  LocalFrame* main_frame = ToLocalFrame(page->MainFrame());
  EXPECT_FALSE(main_frame->DomWindow()->closed());

  main_frame->DomWindow()->close(nullptr);
  // The window should be marked closed...
  EXPECT_TRUE(main_frame->DomWindow()->closed());
  // EXPECT_TRUE(page->isClosing());
  // ...but not yet detached.
  EXPECT_TRUE(main_frame->GetPage());

  {
    ScopedPagePauser pauser;
    EXPECT_TRUE(page->Paused());
  }
}

TEST_P(WebViewTest, ForceAndResetViewport) {
  RegisterMockedHttpURLLoad("200-by-300.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(base_url_ + "200-by-300.html");
  web_view_impl->Resize(WebSize(100, 150));
  SetViewportSize(WebSize(100, 150));
  VisualViewport* visual_viewport =
      &web_view_impl->GetPage()->GetVisualViewport();
  DevToolsEmulator* dev_tools_emulator = web_view_impl->GetDevToolsEmulator();

  TransformationMatrix expected_matrix;
  expected_matrix.MakeIdentity();
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());
  EXPECT_FALSE(dev_tools_emulator->VisibleContentRectForPainting());
  EXPECT_TRUE(visual_viewport->ContainerLayer()->MasksToBounds());

  // Override applies transform, sets visibleContentRect, and disables
  // visual viewport clipping.
  dev_tools_emulator->ForceViewport(WebFloatPoint(50, 55), 2.f);
  expected_matrix.MakeIdentity().Scale(2.f).Translate(-50, -55);
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());
  EXPECT_EQ(IntRect(50, 55, 50, 75),
            *dev_tools_emulator->VisibleContentRectForPainting());
  EXPECT_FALSE(visual_viewport->ContainerLayer()->MasksToBounds());

  // Setting new override discards previous one.
  dev_tools_emulator->ForceViewport(WebFloatPoint(5.4f, 10.5f), 1.5f);
  expected_matrix.MakeIdentity().Scale(1.5f).Translate(-5.4f, -10.5f);
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());
  EXPECT_EQ(IntRect(5, 10, 68, 101),
            *dev_tools_emulator->VisibleContentRectForPainting());
  EXPECT_FALSE(visual_viewport->ContainerLayer()->MasksToBounds());

  // Clearing override restores original transform, visibleContentRect and
  // visual viewport clipping.
  dev_tools_emulator->ResetViewport();
  expected_matrix.MakeIdentity();
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());
  EXPECT_FALSE(dev_tools_emulator->VisibleContentRectForPainting());
  EXPECT_TRUE(visual_viewport->ContainerLayer()->MasksToBounds());
}

TEST_P(WebViewTest, ViewportOverrideIntegratesDeviceMetricsOffsetAndScale) {
  RegisterMockedHttpURLLoad("200-by-300.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(base_url_ + "200-by-300.html");
  web_view_impl->Resize(WebSize(100, 150));

  TransformationMatrix expected_matrix;
  expected_matrix.MakeIdentity();
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());

  WebDeviceEmulationParams emulation_params;
  emulation_params.scale = 2.f;
  web_view_impl->EnableDeviceEmulation(emulation_params);
  expected_matrix.MakeIdentity().Scale(2.f);
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());

  // Device metrics offset and scale are applied before viewport override.
  web_view_impl->GetDevToolsEmulator()->ForceViewport(WebFloatPoint(5, 10),
                                                      1.5f);
  expected_matrix.MakeIdentity()
      .Scale(1.5f)
      .Translate(-5, -10)
      .Scale(2.f);
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());
}

TEST_P(WebViewTest, ViewportOverrideAdaptsToScaleAndScroll) {
  RegisterMockedHttpURLLoad("200-by-300.html");
  WebViewImpl* web_view_impl =
      web_view_helper_.InitializeAndLoad(base_url_ + "200-by-300.html");
  web_view_impl->Resize(WebSize(100, 150));
  SetViewportSize(WebSize(100, 150));
  LocalFrameView* frame_view =
      web_view_impl->MainFrameImpl()->GetFrame()->View();
  DevToolsEmulator* dev_tools_emulator = web_view_impl->GetDevToolsEmulator();

  TransformationMatrix expected_matrix;
  expected_matrix.MakeIdentity();
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());

  // Initial transform takes current page scale and scroll position into
  // account.
  web_view_impl->SetPageScaleFactor(1.5f);
  frame_view->LayoutViewportScrollableArea()->SetScrollOffset(
      ScrollOffset(100, 150), kProgrammaticScroll, kScrollBehaviorInstant);
  dev_tools_emulator->ForceViewport(WebFloatPoint(50, 55), 2.f);
  expected_matrix.MakeIdentity()
      .Scale(2.f)
      .Translate(-50, -55)
      .Translate(100, 150)
      .Scale(1. / 1.5f);
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());
  // Page scroll and scale are irrelevant for visibleContentRect.
  EXPECT_EQ(IntRect(50, 55, 50, 75),
            *dev_tools_emulator->VisibleContentRectForPainting());

  // Transform adapts to scroll changes.
  frame_view->LayoutViewportScrollableArea()->SetScrollOffset(
      ScrollOffset(50, 55), kProgrammaticScroll, kScrollBehaviorInstant);
  expected_matrix.MakeIdentity()
      .Scale(2.f)
      .Translate(-50, -55)
      .Translate(50, 55)
      .Scale(1. / 1.5f);
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());
  // visibleContentRect doesn't change.
  EXPECT_EQ(IntRect(50, 55, 50, 75),
            *dev_tools_emulator->VisibleContentRectForPainting());

  // Transform adapts to page scale changes.
  web_view_impl->SetPageScaleFactor(2.f);
  expected_matrix.MakeIdentity()
      .Scale(2.f)
      .Translate(-50, -55)
      .Translate(50, 55)
      .Scale(1. / 2.f);
  EXPECT_EQ(expected_matrix,
            web_view_impl->GetDeviceEmulationTransformForTesting());
  // visibleContentRect doesn't change.
  EXPECT_EQ(IntRect(50, 55, 50, 75),
            *dev_tools_emulator->VisibleContentRectForPainting());
}

TEST_P(WebViewTest, ResizeForPrintingViewportUnits) {
  WebViewImpl* web_view = web_view_helper_.Initialize();
  web_view->Resize(WebSize(800, 600));

  WebURL base_url = URLTestHelpers::ToKURL("http://example.com/");
  FrameTestHelpers::LoadHTMLString(web_view->MainFrameImpl(),
                                   "<style>"
                                   "  body { margin: 0px; }"
                                   "  #vw { width: 100vw; height: 100vh; }"
                                   "</style>"
                                   "<div id=vw></div>",
                                   base_url);

  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  Document* document = frame->GetFrame()->GetDocument();
  Element* vw_element = document->getElementById("vw");

  EXPECT_EQ(800, vw_element->OffsetWidth());

  FloatSize page_size(300, 360);

  WebPrintParams print_params;
  print_params.print_content_area.width = page_size.Width();
  print_params.print_content_area.height = page_size.Height();

  IntSize expected_size = PrintICBSizeFromPageSize(page_size);

  frame->PrintBegin(print_params, WebNode());

  EXPECT_EQ(expected_size.Width(), vw_element->OffsetWidth());
  EXPECT_EQ(expected_size.Height(), vw_element->OffsetHeight());

  web_view->Resize(FlooredIntSize(page_size));

  EXPECT_EQ(expected_size.Width(), vw_element->OffsetWidth());
  EXPECT_EQ(expected_size.Height(), vw_element->OffsetHeight());

  web_view->Resize(WebSize(800, 600));
  frame->PrintEnd();

  EXPECT_EQ(800, vw_element->OffsetWidth());
}

TEST_P(WebViewTest, WidthMediaQueryWithPageZoomAfterPrinting) {
  WebViewImpl* web_view = web_view_helper_.Initialize();
  web_view->Resize(WebSize(800, 600));
  web_view->SetZoomLevel(WebView::ZoomFactorToZoomLevel(2.0));

  WebURL base_url = URLTestHelpers::ToKURL("http://example.com/");
  FrameTestHelpers::LoadHTMLString(web_view->MainFrameImpl(),
                                   "<style>"
                                   "  @media (max-width: 600px) {"
                                   "    div { color: green }"
                                   "  }"
                                   "</style>"
                                   "<div id=d></div>",
                                   base_url);

  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  Document* document = frame->GetFrame()->GetDocument();
  Element* div = document->getElementById("d");

  EXPECT_EQ(MakeRGB(0, 128, 0),
            div->GetComputedStyle()->VisitedDependentColor(CSSPropertyColor));

  FloatSize page_size(300, 360);

  WebPrintParams print_params;
  print_params.print_content_area.width = page_size.Width();
  print_params.print_content_area.height = page_size.Height();

  frame->PrintBegin(print_params, WebNode());
  frame->PrintEnd();

  EXPECT_EQ(MakeRGB(0, 128, 0),
            div->GetComputedStyle()->VisitedDependentColor(CSSPropertyColor));
}

TEST_P(WebViewTest, ViewportUnitsPrintingWithPageZoom) {
  WebViewImpl* web_view = web_view_helper_.Initialize();
  web_view->Resize(WebSize(800, 600));
  web_view->SetZoomLevel(WebView::ZoomFactorToZoomLevel(2.0));

  WebURL base_url = URLTestHelpers::ToKURL("http://example.com/");
  FrameTestHelpers::LoadHTMLString(web_view->MainFrameImpl(),
                                   "<style>"
                                   "  body { margin: 0 }"
                                   "  #t1 { width: 100% }"
                                   "  #t2 { width: 100vw }"
                                   "</style>"
                                   "<div id=t1></div>"
                                   "<div id=t2></div>",
                                   base_url);

  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  Document* document = frame->GetFrame()->GetDocument();
  Element* t1 = document->getElementById("t1");
  Element* t2 = document->getElementById("t2");

  EXPECT_EQ(400, t1->OffsetWidth());
  EXPECT_EQ(400, t2->OffsetWidth());

  FloatSize page_size(600, 720);
  int expected_width = PrintICBSizeFromPageSize(page_size).Width();

  WebPrintParams print_params;
  print_params.print_content_area.width = page_size.Width();
  print_params.print_content_area.height = page_size.Height();

  frame->PrintBegin(print_params, WebNode());

  EXPECT_EQ(expected_width, t1->OffsetWidth());
  EXPECT_EQ(expected_width, t2->OffsetWidth());

  frame->PrintEnd();
}

TEST_P(WebViewTest, DeviceEmulationResetScrollbars) {
  WebViewImpl* web_view = web_view_helper_.Initialize();
  web_view->Resize(WebSize(800, 600));

  WebURL base_url = URLTestHelpers::ToKURL("http://example.com/");
  FrameTestHelpers::LoadHTMLString(web_view->MainFrameImpl(),
                                   "<!doctype html>"
                                   "<meta name='viewport'"
                                   "    content='width=device-width'>"
                                   "<style>"
                                   "  body {margin: 0px; height:3000px;}"
                                   "</style>",
                                   base_url);

  WebLocalFrameImpl* frame = web_view->MainFrameImpl();
  auto* frame_view = frame->GetFrameView();
  EXPECT_FALSE(frame_view->VisualViewportSuppliesScrollbars());
  if (RuntimeEnabledFeatures::RootLayerScrollingEnabled()) {
    EXPECT_NE(nullptr,
              frame_view->LayoutViewportScrollableArea()->VerticalScrollbar());
  } else {
    EXPECT_NE(nullptr, frame_view->VerticalScrollbar());
  }

  WebDeviceEmulationParams params;
  params.screen_position = WebDeviceEmulationParams::kMobile;
  params.device_scale_factor = 0;
  params.scale = 1;

  web_view->EnableDeviceEmulation(params);

  // The visual viewport should now proivde the scrollbars instead of the view.
  EXPECT_TRUE(frame_view->VisualViewportSuppliesScrollbars());
  EXPECT_EQ(nullptr, frame_view->VerticalScrollbar());

  web_view->DisableDeviceEmulation();

  // The view should once again provide the scrollbars.
  EXPECT_FALSE(frame_view->VisualViewportSuppliesScrollbars());
  if (RuntimeEnabledFeatures::RootLayerScrollingEnabled()) {
    EXPECT_NE(nullptr,
              frame_view->LayoutViewportScrollableArea()->VerticalScrollbar());
  } else {
    EXPECT_NE(nullptr, frame_view->VerticalScrollbar());
  }
}

TEST_P(WebViewTest, SetZoomLevelWhilePluginFocused) {
  class PluginCreatingWebFrameClient
      : public FrameTestHelpers::TestWebFrameClient {
   public:
    // WebFrameClient overrides:
    WebPlugin* CreatePlugin(const WebPluginParams& params) override {
      return new FakeWebPlugin(params);
    }
  };
  PluginCreatingWebFrameClient frame_client;
  WebViewImpl* web_view = web_view_helper_.Initialize(&frame_client);
  WebURL base_url = URLTestHelpers::ToKURL("https://example.com/");
  FrameTestHelpers::LoadHTMLString(
      web_view->MainFrameImpl(),
      "<!DOCTYPE html><html><body>"
      "<object type='application/x-webkit-test-plugin'></object>"
      "</body></html>",
      base_url);
  // Verify the plugin is loaded.
  LocalFrame* main_frame = web_view->MainFrameImpl()->GetFrame();
  HTMLObjectElement* plugin_element =
      ToHTMLObjectElement(main_frame->GetDocument()->body()->firstChild());
  EXPECT_TRUE(plugin_element->OwnedPlugin());
  // Focus the plugin element, and then change the zoom level on the WebView.
  plugin_element->focus();
  EXPECT_FLOAT_EQ(1.0f, main_frame->PageZoomFactor());
  web_view->SetZoomLevel(-1.0);
  // Even though the plugin is focused, the entire frame's zoom factor should
  // still be updated.
  EXPECT_FLOAT_EQ(5.0f / 6.0f, main_frame->PageZoomFactor());
  web_view_helper_.Reset();  // Remove dependency on locally scoped client.
}

// Tests that a layout update that detaches a plugin doesn't crash if the
// plugin tries to execute script while being destroyed.
TEST_P(WebViewTest, DetachPluginInLayout) {
  class ScriptInDestroyPlugin : public FakeWebPlugin {
   public:
    ScriptInDestroyPlugin(WebLocalFrame* frame, const WebPluginParams& params)
        : FakeWebPlugin(params), frame_(frame) {}

    // WebPlugin overrides:
    void Destroy() override {
      frame_->ExecuteScript(WebScriptSource("console.log('done')"));
      // Deletes this.
      FakeWebPlugin::Destroy();
    }

   private:
    WebLocalFrame* frame_;  // Unowned
  };

  class PluginCreatingWebFrameClient
      : public FrameTestHelpers::TestWebFrameClient {
   public:
    // WebFrameClient overrides:
    WebPlugin* CreatePlugin(const WebPluginParams& params) override {
      return new ScriptInDestroyPlugin(Frame(), params);
    }

    void DidAddMessageToConsole(const WebConsoleMessage& message,
                                const WebString& source_name,
                                unsigned source_line,
                                const WebString& stack_trace) {
      message_ = message.text;
    }

    const String& Message() const { return message_; }

   private:
    String message_;
  };

  PluginCreatingWebFrameClient frame_client;
  WebViewImpl* web_view = web_view_helper_.Initialize(&frame_client);
  WebURL base_url = URLTestHelpers::ToKURL("https://example.com/");
  FrameTestHelpers::LoadHTMLString(
      web_view->MainFrameImpl(),
      "<!DOCTYPE html><html><body>"
      "<object type='application/x-webkit-test-plugin'></object>"
      "</body></html>",
      base_url);
  // Verify the plugin is loaded.
  LocalFrame* main_frame = web_view->MainFrameImpl()->GetFrame();
  HTMLObjectElement* plugin_element =
      ToHTMLObjectElement(main_frame->GetDocument()->body()->firstChild());
  EXPECT_TRUE(plugin_element->OwnedPlugin());

  plugin_element->style()->setCSSText("display: none", ASSERT_NO_EXCEPTION);
  EXPECT_TRUE(plugin_element->OwnedPlugin());
  web_view->UpdateAllLifecyclePhases();
  EXPECT_FALSE(plugin_element->OwnedPlugin());
  EXPECT_EQ("done", frame_client.Message());
  web_view_helper_.Reset();  // Remove dependency on locally scoped client.
}

}  // namespace blink