// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/views/tab_sharing/tab_sharing_ui_views.h"

#include <map>
#include <string>
#include <string_view>

#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/run_loop.h"
#include "base/strings/string_util.h"
#include "base/test/run_until.h"
#include "base/test/scoped_feature_list.h"
#include "chrome/browser/browser_features.h"
#include "chrome/browser/media/webrtc/media_capture_devices_dispatcher.h"
#include "chrome/browser/ui/browser_window/public/browser_window_interface.h"
#include "chrome/browser/ui/tabs/tab_enums.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/tabs/tab_strip_user_gesture_details.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/browser/ui/views/frame/contents_capture_border_view.h"
#include "chrome/browser/ui/views/frame/contents_container_view.h"
#include "chrome/browser/ui/views/tab_sharing/tab_sharing_infobar.h"
#include "chrome/browser/ui/views/tab_sharing/tab_sharing_test_utils.h"
#include "chrome/common/chrome_features.h"
#include "chrome/common/webui_url_constants.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "components/infobars/content/content_infobar_manager.h"
#include "components/infobars/core/infobar.h"
#include "components/url_formatter/elide_url.h"
#include "components/vector_icons/vector_icons.h"
#include "content/public/browser/global_routing_id.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_process_host_observer.h"
#include "content/public/common/content_features.h"
#include "content/public/common/result_codes.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/captured_surface_test_utils.h"
#include "media/capture/capture_switches.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/ui_base_features.h"
#include "ui/gfx/image/image_unittest_util.h"
#include "ui/views/controls/button/button_controller.h"
#include "ui/views/view_tracker.h"
#include "ui/views/widget/widget.h"

#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/browser/chromeos/policy/dlp/dlp_content_tab_helper.h"
#endif  // BUILDFLAG(IS_CHROMEOS)

namespace {
using ::testing::_;
using ::testing::Not;
using TabSharingInfoBarButton =
    ::TabSharingInfoBarDelegate::TabSharingInfoBarButton;

constexpr int kNullTabIndex = -1;

content::WebContents* GetWebContents(Browser* browser, int tab) {
  return browser->GetTabStripModel()->GetWebContentsAt(tab);
}

content::GlobalRenderFrameHostId GetGlobalId(Browser* browser, int tab) {
  auto* const main_frame = GetWebContents(browser, tab)->GetPrimaryMainFrame();
  return main_frame ? main_frame->GetGlobalId()
                    : content::GlobalRenderFrameHostId();
}

infobars::ContentInfoBarManager* GetInfoBarManager(Browser* browser, int tab) {
  return infobars::ContentInfoBarManager::FromWebContents(
      GetWebContents(browser, tab));
}

TabSharingInfoBar* GetInfoBar(Browser* browser, int tab) {
  return static_cast<TabSharingInfoBar*>(
      GetInfoBarManager(browser, tab)->infobars()[0]);
}

TabSharingInfoBarDelegate* GetDelegate(Browser* browser, int tab) {
  return static_cast<TabSharingInfoBarDelegate*>(
      GetInfoBar(browser, tab)->delegate());
}

std::u16string GetInfoText(const TabSharingStatusMessageView& info_view) {
  std::u16string text;
  for (views::View* view : info_view.children()) {
    if (std::optional<std::u16string_view> button_or_label_text =
            GetTabSharingButtonOrLabelText(*view)) {
      text += *button_or_label_text;
    }
  }
  return text;
}

std::u16string GetInfobarMessageText(Browser* browser, int tab) {
  const views::View& view =
      *GetInfoBar(browser, tab)->GetStatusMessageViewForTesting();
  if (view.GetClassName() == "Label") {
    return std::u16string(static_cast<const views::Label&>(view).GetText());
  } else if (view.GetClassName() == "TabSharingStatusMessageView") {
    return GetInfoText(static_cast<const TabSharingStatusMessageView&>(view));
  }
  NOTREACHED();
}

std::vector<views::MdTextButton*> GetMessageLinks(Browser* browser, int tab) {
  const views::View& status_message_view =
      *GetInfoBar(browser, tab)->GetStatusMessageViewForTesting();
  CHECK_EQ(status_message_view.GetClassName(), "TabSharingStatusMessageView");

  std::vector<views::MdTextButton*> buttons;
  for (views::View* child_view : status_message_view.children()) {
    if (child_view->GetClassName() == "MdTextButton") {
      buttons.emplace_back(static_cast<views::MdTextButton*>(child_view));
    }
  }
  return buttons;
}

bool HasShareThisTabInsteadButton(Browser* browser, int tab) {
  return GetDelegate(browser, tab)->GetButtons() &
         TabSharingInfoBarButton::kShareThisTabInstead;
}

std::u16string GetShareThisTabInsteadButtonLabel(Browser* browser, int tab) {
  DCHECK(HasShareThisTabInsteadButton(browser, tab));  // Test error otherwise.
  return GetDelegate(browser, tab)
      ->GetButtonLabel(TabSharingInfoBarButton::kShareThisTabInstead);
}

ui::ImageModel GetShareThisTabInsteadButtonImage(Browser* browser, int tab) {
  DCHECK(HasShareThisTabInsteadButton(browser, tab));  // Test error otherwise.
  return GetDelegate(browser, tab)
      ->GetButtonImage(TabSharingInfoBarButton::kShareThisTabInstead);
}

bool ShareThisTabInsteadButtonIsEnabled(Browser* browser, int tab) {
  DCHECK(HasShareThisTabInsteadButton(browser, tab));  // Test error otherwise.
  return GetDelegate(browser, tab)
      ->IsButtonEnabled(TabSharingInfoBarButton::kShareThisTabInstead);
}

bool HasCscIndicatorButton(Browser* browser, int tab) {
  return GetDelegate(browser, tab)->GetButtons() &
         TabSharingInfoBarButton::kCapturedSurfaceControlIndicator;
}

std::u16string GetCscIndicatorButtonLabel(Browser* browser, int tab) {
  DCHECK(HasCscIndicatorButton(browser, tab));  // Test error otherwise.
  return GetDelegate(browser, tab)
      ->GetButtonLabel(
          TabSharingInfoBarButton::kCapturedSurfaceControlIndicator);
}

ui::ImageModel GetCscIndicatorButtonImage(Browser* browser, int tab) {
  DCHECK(HasCscIndicatorButton(browser, tab));  // Test error otherwise.
  return GetDelegate(browser, tab)
      ->GetButtonImage(
          TabSharingInfoBarButton::kCapturedSurfaceControlIndicator);
}

content::DesktopMediaID GetDesktopMediaID(Browser* browser, int tab) {
  content::RenderFrameHost* main_frame =
      GetWebContents(browser, tab)->GetPrimaryMainFrame();
  return content::DesktopMediaID(
      content::DesktopMediaID::TYPE_WEB_CONTENTS,
      content::DesktopMediaID::kNullId,
      content::WebContentsMediaCaptureId(
          main_frame->GetProcess()->GetDeprecatedID(),
          main_frame->GetRoutingID()));
}

ContentsCaptureBorderView* GetContentsBorder(Browser* browser,
                                             int tab_index = kNullTabIndex) {
  BrowserView* browser_view = BrowserView::GetBrowserViewForBrowser(browser);
  if (tab_index == kNullTabIndex) {
    return browser_view->GetActiveContentsContainerView()
        ->capture_contents_border_view();
  }
  return browser_view
      ->GetContentsContainerViewFor(
          browser->GetTabStripModel()->GetWebContentsAt(tab_index))
      ->capture_contents_border_view();
}

scoped_refptr<MediaStreamCaptureIndicator> GetCaptureIndicator() {
  return MediaCaptureDevicesDispatcher::GetInstance()
      ->GetMediaStreamCaptureIndicator();
}

void ActivateTab(Browser* browser, int tab) {
  browser->GetTabStripModel()->ActivateTabAt(
      tab, TabStripUserGestureDetails(
               TabStripUserGestureDetails::GestureType::kMouse));
  base::RunLoop().RunUntilIdle();
}

bool IsActive(Browser* browser, int tab) {
  return browser->GetTabStripModel()->GetActiveWebContents() ==
         GetWebContents(browser, tab);
}

const std::u16string kShareThisTabInsteadMessage = u"Share this tab instead";

#if BUILDFLAG(IS_CHROMEOS)
const policy::DlpContentRestrictionSet kEmptyRestrictionSet;
const policy::DlpContentRestrictionSet kScreenshareRestrictionSet(
    policy::DlpContentRestriction::kScreenShare,
    policy::DlpRulesManager::Level::kBlock);
#endif  // BUILDFLAG(IS_CHROMEOS)

}  // namespace

class TabSharingUIViewsBrowserTestBase : public InProcessBrowserTest {
 public:
  TabSharingUIViewsBrowserTestBase() {
    // TODO(crbug.com/40248833): Use HTTPS URLs in tests to avoid having to
    // disable kHttpsUpgrades feature.
    features_.InitWithFeatureState(features::kHttpsUpgrades, false);
  }

  void SetUpOnMainThread() override {
    InProcessBrowserTest::SetUpOnMainThread();
    DCHECK_EQ(browser()->GetTabStripModel()->count(), 1);
    embedded_test_server()->ServeFilesFromSourceDirectory("chrome/test/data");
    host_resolver()->AddRule("*", "127.0.0.1");
  }

  Browser* CreateBrowser(Profile* profile) {
    Browser* const browser = InProcessBrowserTest::CreateBrowser(profile);
    TabStripModel* const tab_strip_model = browser->GetTabStripModel();
    EXPECT_EQ(tab_strip_model->count(), 1);  // Treat as an assertion.
    return browser;
  }

  void CreateUiAndStartSharing(Browser* browser,
                               int capturing_tab,
                               int captured_tab) {
    // Explicitly activate the shared tab in testing.
    ActivateTab(browser, captured_tab);

    tab_sharing_ui_ =
        TabSharingUI::Create(GetGlobalId(browser, capturing_tab),
                             GetDesktopMediaID(browser, captured_tab),
                             /*capturer_name=*/u"capturer.com",
                             /*app_preferred_current_tab=*/false,
                             TabSharingInfoBarDelegate::TabShareType::CAPTURE,
                             /*captured_surface_control_active=*/false);

    tab_sharing_ui_->OnStarted(
        base::OnceClosure(),
        base::BindRepeating(&TabSharingUIViewsBrowserTestBase::OnSourceChange,
                            base::Unretained(this)),
        std::vector<content::DesktopMediaID>{});

    base::RunLoop().RunUntilIdle();
  }

  struct UiExpectations {
    raw_ptr<Browser> browser;
    int capturing_tab;
    int captured_tab;
    size_t infobar_count = 1;
#if !BUILDFLAG(IS_CHROMEOS)
    bool has_border = true;
#endif
    int tab_with_disabled_button = kNullTabIndex;
    bool has_captured_surface_control_indicator = false;
  };

  // Verify that tab sharing infobars are displayed on all tabs, and content
  // border and tab capture indicator are only visible on the shared tab. Pass
  // |kNullTabIndex| for |captured_tab| to indicate the shared tab is
  // not in |browser|.
  void VerifyUi(const UiExpectations& expectations) {
    Browser* const browser = expectations.browser;
    const int capturing_tab = expectations.capturing_tab;
    const int captured_tab = expectations.captured_tab;
    const size_t infobar_count = expectations.infobar_count;
#if !BUILDFLAG(IS_CHROMEOS)
    const bool has_border = expectations.has_border;
#else
    const bool has_border = false;
#endif
    const int tab_with_disabled_button = expectations.tab_with_disabled_button;
    const bool has_captured_surface_control_indicator =
        expectations.has_captured_surface_control_indicator;

    DCHECK((capturing_tab != kNullTabIndex && captured_tab != kNullTabIndex) ||
           (capturing_tab == kNullTabIndex && captured_tab == kNullTabIndex));

    auto capture_indicator = GetCaptureIndicator();
    for (int i = 0; i < browser->GetTabStripModel()->count(); ++i) {
      // All tabs have |infobar_count| tab sharing infobars.
      infobars::ContentInfoBarManager* infobar_manager =
          GetInfoBarManager(browser, i);
      EXPECT_EQ(infobar_count, infobar_manager->infobars().size());
      for (size_t j = 0; j < infobar_count; ++j) {
        EXPECT_EQ(infobars::InfoBarDelegate::TAB_SHARING_INFOBAR_DELEGATE,
                  infobar_manager->infobars()[j]->delegate()->GetIdentifier());
      }

      // Content border is only visible on the shared tab.
      if (has_border) {
        ActivateTab(browser, i);
        ContentsCaptureBorderView* contents_border =
            GetContentsBorder(browser, i);
        EXPECT_TRUE(base::test::RunUntil([&]() {
          return (i == captured_tab) == contents_border->GetVisible();
        }));

        // The contents border should surround the contents container view
        BrowserView* const browser_view =
            BrowserView::GetBrowserViewForBrowser(browser);
        content::WebContents* const web_contents =
            browser->GetTabStripModel()->GetWebContentsAt(i);
        EXPECT_EQ(contents_border->GetBoundsInScreen(),
                  browser_view->GetContentsContainerViewFor(web_contents)
                      ->GetBoundsInScreen());
      }

      // Tab capture indicator is only displayed on the shared tab.
      EXPECT_EQ(i == captured_tab,
                capture_indicator->IsBeingMirrored(GetWebContents(browser, i)));

      if (i == capturing_tab && i == captured_tab) {
        // Self-capture.
        EXPECT_FALSE(HasShareThisTabInsteadButton(browser, i));
        EXPECT_FALSE(HasCscIndicatorButton(browser, i));
      } else if (i == capturing_tab) {
        // Capturing-tab's infobar.
        EXPECT_EQ(HasCscIndicatorButton(browser, i),
                  has_captured_surface_control_indicator);
        if (HasCscIndicatorButton(browser, i)) {
          EXPECT_EQ(
              GetCscIndicatorButtonLabel(browser, i),
              l10n_util::GetStringUTF16(
                  IDS_TAB_SHARING_INFOBAR_CAPTURED_SURFACE_CONTROL_PERMISSION_BUTTON));
          EXPECT_EQ(GetCscIndicatorButtonImage(browser, i),
                    ui::ImageModel::FromVectorIcon(
                        features::IsRoundedIconsEnabled()
                            ? vector_icons::kTouchpadMouseIcon
                            : vector_icons::kTouchpadMouseOldIcon,
                        ui::kColorSysPrimary,
                        /*icon_size=*/16));
        }
      } else if (i == captured_tab) {
        // Captured-tab's infobar.
        EXPECT_FALSE(HasCscIndicatorButton(browser, i));
      } else if (infobar_manager->infobars().size() > 0) {
        // Any other infobar.
        ASSERT_TRUE(HasShareThisTabInsteadButton(browser, i));
        EXPECT_EQ(GetShareThisTabInsteadButtonLabel(browser, i),
                  kShareThisTabInsteadMessage);
        EXPECT_EQ(GetShareThisTabInsteadButtonImage(browser, i),
                  ui::ImageModel());
        EXPECT_EQ(ShareThisTabInsteadButtonIsEnabled(browser, i),
                  i != tab_with_disabled_button)
            << "Tab: " << i;
        EXPECT_FALSE(HasCscIndicatorButton(browser, i));
      }
    }
  }

  void AddTab(Browser* browser, const GURL& url) {
    const int next_index = browser->GetTabStripModel()->count();
    ASSERT_TRUE(AddTabAtIndexToBrowser(browser, next_index, url,
                                       ui::PAGE_TRANSITION_LINK, true));
  }

  void AddTabs(Browser* browser, int tab_count) {
    for (int i = 0; i < tab_count; ++i) {
      AddTab(browser, chrome::ChromeUINewTabURLAsGURL());
    }

    base::RunLoop().RunUntilIdle();
  }

  TabSharingUIViews* tab_sharing_ui_views() {
    return static_cast<TabSharingUIViews*>(tab_sharing_ui_.get());
  }

 protected:
#if BUILDFLAG(IS_CHROMEOS)
  void ApplyDlpForAllUsers() {
    TabSharingUIViews::ApplyDlpForAllUsersForTesting();
  }
#endif  // BUILDFLAG(IS_CHROMEOS)

  MOCK_METHOD(void,
              OnSourceChange,
              (const content::DesktopMediaID& media_id,
               bool captured_surface_control_active),
              ());

 private:
  base::test::ScopedFeatureList features_;
  std::unique_ptr<TabSharingUI> tab_sharing_ui_;
};

class TabSharingUIViewsBrowserTest : public TabSharingUIViewsBrowserTestBase {
 public:
  TabSharingUIViewsBrowserTest() = default;
};

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest, StartSharing) {
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);

  // Test that before sharing there are no infobars, content border or tab
  // capture indicator.
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = kNullTabIndex,
                          .captured_tab = kNullTabIndex,
                          .infobar_count = 0,
#if !BUILDFLAG(IS_CHROMEOS)
                          .has_border = false
#endif
  });

  // Create UI and start sharing the tab at index 1.
  CreateUiAndStartSharing(browser(), /*capturing_tab=*/0,
                          /*captured_tab=*/1);

  // Test that infobars were created, and contents border and tab capture
  // indicator are displayed on the shared tab.
  VerifyUi(UiExpectations{
      .browser = browser(), .capturing_tab = 0, .captured_tab = 1});
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest, SwitchSharedTab) {
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);
  CreateUiAndStartSharing(browser(), /*capturing_tab=*/0, /*captured_tab=*/1);

  // Share a different tab.
  // When switching tabs, a new UI is created, and the old one destroyed.
  ActivateTab(browser(), 2);
  CreateUiAndStartSharing(browser(), /*capturing_tab=*/0, /*captured_tab=*/2);

  // Test that the UI has been updated.
  VerifyUi(UiExpectations{
      .browser = browser(), .capturing_tab = 0, .captured_tab = 2});
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest, StopSharing) {
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);
  CreateUiAndStartSharing(browser(), /*capturing_tab=*/0, /*captured_tab=*/1);

  tab_sharing_ui_views()->StopSharing("reason");

  // Test that the infobars have been removed, and the contents border and tab
  // capture indicator are no longer visible.
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = kNullTabIndex,
                          .captured_tab = kNullTabIndex,
                          .infobar_count = 0});
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest, CloseTab) {
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);
  CreateUiAndStartSharing(browser(), /*capturing_tab=*/0, /*captured_tab=*/1);

  // Close a tab different than the shared one and wait until it's actually
  // closed, then test that the UI has not changed.
  TabStripModel* tab_strip_model = browser()->GetTabStripModel();
  content::WebContentsDestroyedWatcher tab_2_destroyed_watcher(
      tab_strip_model->GetWebContentsAt(2));
  tab_strip_model->CloseWebContentsAt(2, TabCloseTypes::CLOSE_NONE);
  tab_2_destroyed_watcher.Wait();
  VerifyUi(UiExpectations{
      .browser = browser(), .capturing_tab = 0, .captured_tab = 1});

  // Close the shared tab and wait until it's actually closed, then verify that
  // sharing is stopped, i.e. the UI is removed.
  content::WebContentsDestroyedWatcher tab_1_destroyed_watcher(
      tab_strip_model->GetWebContentsAt(1));
  tab_strip_model->CloseWebContentsAt(1, TabCloseTypes::CLOSE_NONE);
  tab_1_destroyed_watcher.Wait();
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = kNullTabIndex,
                          .captured_tab = kNullTabIndex,
                          .infobar_count = 0});
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest,
                       BorderWidgetShouldCloseWhenBrowserCloses) {
  Browser* new_browser = CreateBrowser(browser()->GetProfile());
  AddTabs(new_browser, 2);
  ASSERT_EQ(new_browser->GetTabStripModel()->count(), 3);
  CreateUiAndStartSharing(new_browser, /*capturing_tab=*/0, /*captured_tab=*/1);

  // Share a different tab.
  // When switching tabs, a new UI is created, and the old one destroyed.
  ActivateTab(new_browser, 2);
  CreateUiAndStartSharing(new_browser, /*capturing_tab=*/0, /*captured_tab=*/2);

  // Test that the UI has been updated.
  VerifyUi(UiExpectations{
      .browser = new_browser, .capturing_tab = 0, .captured_tab = 2});

#if !BUILDFLAG(IS_CHROMEOS)
  views::ViewTracker contents_border_tracker(GetContentsBorder(new_browser, 2));
  CloseBrowserSynchronously(new_browser);
  EXPECT_EQ(contents_border_tracker.view(), nullptr);
#endif
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest,
                       CloseTabInIncognitoBrowser) {
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);

  // Start sharing a tab in an incognito browser.
  Browser* incognito_browser = CreateIncognitoBrowser();
  DCHECK_EQ(incognito_browser->GetTabStripModel()->count(), 1);

  AddTabs(incognito_browser, 3);
  ASSERT_EQ(incognito_browser->GetTabStripModel()->count(), 4);
  CreateUiAndStartSharing(incognito_browser, /*capturing_tab=*/0,
                          /*captured_tab=*/1);
  VerifyUi(UiExpectations{
      .browser = incognito_browser, .capturing_tab = 0, .captured_tab = 1});
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = kNullTabIndex,
                          .captured_tab = kNullTabIndex,
                          .infobar_count = 1,
#if !BUILDFLAG(IS_CHROMEOS)
                          .has_border = false
#endif
  });

  // Close a tab different than the shared one and test that the UI has not
  // changed.
  TabStripModel* tab_strip_model = incognito_browser->GetTabStripModel();
  tab_strip_model->CloseWebContentsAt(2, TabCloseTypes::CLOSE_NONE);
  VerifyUi(UiExpectations{
      .browser = incognito_browser, .capturing_tab = 0, .captured_tab = 1});
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = kNullTabIndex,
                          .captured_tab = kNullTabIndex,
                          .infobar_count = 1,
#if !BUILDFLAG(IS_CHROMEOS)
                          .has_border = false
#endif
  });

  // Close the shared tab in the incognito browser and test that the UI is
  // removed.
  incognito_browser->GetTabStripModel()->CloseWebContentsAt(
      1, TabCloseTypes::CLOSE_NONE);
  VerifyUi(UiExpectations{.browser = incognito_browser,
                          .capturing_tab = kNullTabIndex,
                          .captured_tab = kNullTabIndex,
                          .infobar_count = 0});
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = kNullTabIndex,
                          .captured_tab = kNullTabIndex,
                          .infobar_count = 0,
#if !BUILDFLAG(IS_CHROMEOS)
                          .has_border = false
#endif
  });
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest, KillTab) {
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);
  CreateUiAndStartSharing(browser(), /*capturing_tab=*/1, /*captured_tab=*/2);

  // Kill a tab different than the shared one.
  content::WebContents* web_contents = GetWebContents(browser(), 0);
  content::RenderProcessHost* process =
      web_contents->GetPrimaryMainFrame()->GetProcess();
  content::RenderProcessHostWatcher crash_observer(
      process, content::RenderProcessHostWatcher::WATCH_FOR_PROCESS_EXIT);
  process->Shutdown(content::RESULT_CODE_KILLED);
  crash_observer.Wait();

  // Verify that the sad tab does not have an infobar.
  infobars::ContentInfoBarManager* infobar_manager =
      GetInfoBarManager(browser(), 0);
  EXPECT_EQ(0u, infobar_manager->infobars().size());

  // Stop sharing should not result in a crash.
  tab_sharing_ui_views()->StopSharing("reason");
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest, KillSharedTab) {
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);
  CreateUiAndStartSharing(browser(), /*capturing_tab=*/0, /*captured_tab=*/1);

  // Kill the shared tab.
  content::WebContents* shared_tab_web_contents = GetWebContents(browser(), 1);
  content::RenderProcessHost* shared_tab_process =
      shared_tab_web_contents->GetPrimaryMainFrame()->GetProcess();
  content::RenderProcessHostWatcher shared_tab_crash_observer(
      shared_tab_process,
      content::RenderProcessHostWatcher::WATCH_FOR_PROCESS_EXIT);
  shared_tab_process->Shutdown(content::RESULT_CODE_KILLED);
  shared_tab_crash_observer.Wait();

  // Verify that killing the shared tab stopped sharing.
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = kNullTabIndex,
                          .captured_tab = kNullTabIndex,
                          .infobar_count = 0});
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest,
                       InfobarLabelUpdatedOnNavigation) {
  AddTabs(browser(), 1);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 2);

  constexpr int kCapturingTab = 0;
  constexpr int kCapturedTab = 1;

  CreateUiAndStartSharing(browser(), kCapturingTab, kCapturedTab);
  ASSERT_THAT(base::UTF16ToUTF8(GetInfobarMessageText(browser(), 0)),
              ::testing::HasSubstr(chrome::kChromeUINewTabPageHost));

  ASSERT_TRUE(ui_test_utils::NavigateToURL(browser(),
                                           GURL(chrome::kChromeUIVersionURL)));
  EXPECT_THAT(
      base::UTF16ToUTF8(GetInfobarMessageText(browser(), kCapturingTab)),
      ::testing::HasSubstr(chrome::kChromeUIVersionHost));

  ASSERT_TRUE(ui_test_utils::NavigateToURL(browser(), GURL("about:blank")));
  EXPECT_THAT(
      base::UTF16ToUTF8(GetInfobarMessageText(browser(), kCapturingTab)),
      ::testing::HasSubstr("about:blank"));
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest,
                       InfobarGainsCapturedSurfaceControlIndicator) {
  // Think of tab #0 as kOtherTab. It is verified by VerifyUi().
  constexpr int kCapturedTab = 1;
  constexpr int kCapturingTab = 2;

  // Set up a tab-capture session.
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);

  CreateUiAndStartSharing(browser(), kCapturingTab, kCapturedTab);

  // Start out with CSC "inactive" - CSC indicator not used.
  UiExpectations expectations{.browser = browser(),
                              .capturing_tab = kCapturingTab,
                              .captured_tab = kCapturedTab};
  ASSERT_FALSE(expectations.has_captured_surface_control_indicator);
  VerifyUi(expectations);

  // Simulate an invocation of a CSC write-access API, turning CSC "active".
  // As a result, the capturing tab has its infobar replaced with one which has
  // the CSC indicator.
  DidCapturedSurfaceControlForTesting(GetWebContents(browser(), kCapturingTab));
  expectations.has_captured_surface_control_indicator = true;
  VerifyUi(expectations);
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest,
                       SourceChangesRemembersIfCapturedSurfaceControlInactive) {
  constexpr int kOtherTab = 0;
  constexpr int kCapturedTab = 1;
  constexpr int kCapturingTab = 2;

  // Set up a tab-capture session.
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);

  CreateUiAndStartSharing(browser(), kCapturingTab, kCapturedTab);

  // Note that DidCapturedSurfaceControlForTesting() is *not* called before
  // the source-change.
  EXPECT_CALL(*this,
              OnSourceChange(_, /*captured_surface_control_active=*/false));
  GetDelegate(browser(), kOtherTab)->ShareThisTabInstead();
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest,
                       SourceChangesRemembersIfCapturedSurfaceControlActive) {
  constexpr int kOtherTab = 0;
  constexpr int kCapturedTab = 1;
  constexpr int kCapturingTab = 2;

  // Set up a tab-capture session.
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);

  CreateUiAndStartSharing(browser(), kCapturingTab, kCapturedTab);

  // Simulate a call to a Captured Surface Control API.
  DidCapturedSurfaceControlForTesting(GetWebContents(browser(), kCapturingTab));

  EXPECT_CALL(*this,
              OnSourceChange(_, /*captured_surface_control_active=*/true));
  GetDelegate(browser(), kOtherTab)->ShareThisTabInstead();
}

#if BUILDFLAG(IS_CHROMEOS)

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsBrowserTest,
                       SharingWithDlpAndNavigation) {
  // DLP setup
  ApplyDlpForAllUsers();
  policy::DlpContentTabHelper::ScopedIgnoreDlpRulesManager
      ignore_dlp_rules_manager =
          policy::DlpContentTabHelper::IgnoreDlpRulesManagerForTesting();

  ASSERT_TRUE(embedded_test_server()->Start());
  GURL kUrlRestricted =
      embedded_test_server()->GetURL("restricted.com", "/title1.html");
  GURL kUrlUnrestricted =
      embedded_test_server()->GetURL("unrestricted.com", "/title1.html");

  policy::DlpContentRestrictionSet::SetRestrictionsForURLForTesting(
      kUrlRestricted, kScreenshareRestrictionSet);
  policy::DlpContentRestrictionSet::SetRestrictionsForURLForTesting(
      kUrlUnrestricted, kEmptyRestrictionSet);

  // Start actual test
  AddTabs(browser(), 2);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);

  // Create UI and start sharing the tab at index 1.
  CreateUiAndStartSharing(browser(), /*capturing_tab=*/0, /*captured_tab=*/1);

  // Test that infobars were created, and contents border and tab capture
  // indicator are displayed on the shared tab.
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = 0,
                          .captured_tab = 1,
                          .infobar_count = 1,
#if !BUILDFLAG(IS_CHROMEOS)
                          .has_border = true,
#endif
                          .tab_with_disabled_button = kNullTabIndex});

  constexpr int kRestrictedTab = 2;
  content::WebContents* web_contents =
      browser()->GetTabStripModel()->GetWebContentsAt(kRestrictedTab);
  // Navigate to restricted URL.
  ASSERT_TRUE(content::NavigateToURL(web_contents, kUrlRestricted));

  // Test that button on tab 2 is now disabled.
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = 0,
                          .captured_tab = 1,
                          .infobar_count = 1,
#if !BUILDFLAG(IS_CHROMEOS)
                          .has_border = true,
#endif
                          .tab_with_disabled_button = kRestrictedTab});

  // Navigate to unrestricted URL.
  ASSERT_TRUE(content::NavigateToURL(web_contents, kUrlUnrestricted));

  // Verify that button on tab 2 is re-enabled.
  VerifyUi(UiExpectations{.browser = browser(),
                          .capturing_tab = 0,
                          .captured_tab = 1,
                          .infobar_count = 1,
#if !BUILDFLAG(IS_CHROMEOS)
                          .has_border = true,
#endif
                          .tab_with_disabled_button = kNullTabIndex});
}
#endif  // BUILDFLAG(IS_CHROMEOS)

class TabSharingMessageLinksBrowserTest
    : public TabSharingUIViewsBrowserTestBase {
 public:
  TabSharingMessageLinksBrowserTest() = default;

  void SetUpOnMainThread() override {
    TabSharingUIViewsBrowserTestBase::SetUpOnMainThread();
    // The existing initial tab is used for the capturer. Two new tabs are added
    // for the capturee and a third-party tab.
    AddTab(browser(), kCapturedTabUrl);
    AddTab(browser(), kOtherTabUrl);
    ASSERT_EQ(browser()->GetTabStripModel()->count(), 3);
  }

 protected:
  const int kCapturingTab = 0;
  const int kCapturedTab = 1;
  const int kOtherTab = 2;
  const GURL kCapturedTabUrl = chrome::ChromeUINewTabURLAsGURL();
  const GURL kOtherTabUrl = GURL(chrome::kChromeUIAboutURL);
  const std::string kCapturingTabLinkText = "capturer.com";
  const std::string kCapturedTabLinkText = "chrome://new-tab-page";
};

IN_PROC_BROWSER_TEST_F(TabSharingMessageLinksBrowserTest,
                       ClickingOnLinkInCapturingTabActivatesCapturedTab) {
  CreateUiAndStartSharing(browser(), kCapturingTab, kCapturedTab);
  ActivateTab(browser(), kCapturingTab);

  std::vector<views::MdTextButton*> links =
      GetMessageLinks(browser(), /*tab=*/kCapturingTab);
  ASSERT_EQ(links.size(), 1u);
  EXPECT_EQ(base::UTF16ToUTF8(links[0]->GetText()), kCapturedTabLinkText);

  EXPECT_TRUE(IsActive(browser(), kCapturingTab));
  links[0]->button_controller()->NotifyClick();
  EXPECT_TRUE(IsActive(browser(), kCapturedTab));
}

IN_PROC_BROWSER_TEST_F(TabSharingMessageLinksBrowserTest,
                       ClickingOnLinkInCapturedTabActivatesCapturingTab) {
  CreateUiAndStartSharing(browser(), kCapturingTab, kCapturedTab);
  ActivateTab(browser(), kCapturedTab);

  std::vector<views::MdTextButton*> links =
      GetMessageLinks(browser(), /*tab=*/kCapturedTab);
  ASSERT_EQ(links.size(), 1u);
  EXPECT_EQ(base::UTF16ToUTF8(links[0]->GetText()), kCapturingTabLinkText);

  EXPECT_TRUE(IsActive(browser(), kCapturedTab));
  links[0]->button_controller()->NotifyClick();
  EXPECT_TRUE(IsActive(browser(), kCapturingTab));
}

IN_PROC_BROWSER_TEST_F(TabSharingMessageLinksBrowserTest,
                       ClickingOnCaptureeLinkInOtherTabActivatesCapturedTab) {
  CreateUiAndStartSharing(browser(), kCapturingTab, kCapturedTab);
  ActivateTab(browser(), kOtherTab);

  std::vector<views::MdTextButton*> links =
      GetMessageLinks(browser(), /*tab=*/kOtherTab);
  ASSERT_EQ(links.size(), 2u);
  EXPECT_EQ(base::UTF16ToUTF8(links[0]->GetText()), kCapturedTabLinkText);
  EXPECT_EQ(base::UTF16ToUTF8(links[1]->GetText()), kCapturingTabLinkText);

  EXPECT_TRUE(IsActive(browser(), kOtherTab));
  links[0]->button_controller()->NotifyClick();
  EXPECT_TRUE(IsActive(browser(), kCapturedTab));
}

IN_PROC_BROWSER_TEST_F(TabSharingMessageLinksBrowserTest,
                       ClickingOnCapturerLinkInOtherTabActivatesCapturingTab) {
  CreateUiAndStartSharing(browser(), kCapturingTab, kCapturedTab);
  ActivateTab(browser(), kOtherTab);

  std::vector<views::MdTextButton*> links =
      GetMessageLinks(browser(), /*tab=*/kOtherTab);
  ASSERT_EQ(links.size(), 2u);
  EXPECT_EQ(base::UTF16ToUTF8(links[0]->GetText()), kCapturedTabLinkText);
  EXPECT_EQ(base::UTF16ToUTF8(links[1]->GetText()), kCapturingTabLinkText);

  EXPECT_TRUE(IsActive(browser(), kOtherTab));
  links[1]->button_controller()->NotifyClick();
  EXPECT_TRUE(IsActive(browser(), kCapturingTab));
}

class MultipleTabSharingUIViewsBrowserTest : public InProcessBrowserTest {
 public:
  void CreateUIsAndStartSharing(Browser* browser,
                                int capturing_tab,
                                int captured_tab_first,
                                int captured_tab_last = -1) {
    if (captured_tab_last < 0) {
      captured_tab_last = captured_tab_first;
    }
    for (int captured_tab = captured_tab_first;
         captured_tab <= captured_tab_last; ++captured_tab) {
      DCHECK_NE(captured_tab, capturing_tab);
      ActivateTab(browser, captured_tab);
      tab_sharing_ui_views_.push_back(TabSharingUI::Create(
          GetGlobalId(browser, capturing_tab),
          GetDesktopMediaID(browser, captured_tab), u"capturer.com",
          /*app_preferred_current_tab=*/false,
          TabSharingInfoBarDelegate::TabShareType::CAPTURE,
          /*captured_surface_control_active=*/false));
      tab_sharing_ui_views_[tab_sharing_ui_views_.size() - 1]->OnStarted(
          base::OnceClosure(), content::MediaStreamUI::SourceCallback(),
          std::vector<content::DesktopMediaID>{});
    }
  }

  TabSharingUIViews* tab_sharing_ui_views(int i) {
    return static_cast<TabSharingUIViews*>(tab_sharing_ui_views_[i].get());
  }

  void AddTabs(Browser* browser, int tab_count) {
    for (int i = 0; i < tab_count; ++i) {
      AddBlankTabAndShow(browser);
    }
  }

 private:
  std::vector<std::unique_ptr<TabSharingUI>> tab_sharing_ui_views_;
};

IN_PROC_BROWSER_TEST_F(MultipleTabSharingUIViewsBrowserTest, VerifyUi) {
  AddTabs(browser(), 3);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 4);
  CreateUIsAndStartSharing(browser(), /*capturing_tab=*/0,
                           /*captured_tab_first=*/1, /*captured_tab_last=*/3);

  // Check that all tabs have 3 infobars corresponding to the 3 sharing
  // sessions.
  int tab_count = browser()->GetTabStripModel()->count();
  for (int i = 0; i < tab_count; ++i) {
    EXPECT_EQ(3u, GetInfoBarManager(browser(), i)->infobars().size());
  }

  // Check that all shared tabs display a tab capture indicator.
  auto capture_indicator = GetCaptureIndicator();
  for (int i = 1; i < tab_count; ++i) {
    ASSERT_TRUE(
        capture_indicator->IsBeingMirrored(GetWebContents(browser(), i)));
  }

#if !BUILDFLAG(IS_CHROMEOS)
  ContentsCaptureBorderView* contents_border = GetContentsBorder(browser());
  // The capturing tab, which is not itself being captured, does not have
  // the contents-border.
  ActivateTab(browser(), 0);
  EXPECT_FALSE(contents_border->GetVisible());
  // All other tabs are being captured, and therefore have a visible
  // contents-borders whenever they themselves (the tabs) are visible.
  for (int i = 1; i < tab_count; ++i) {
    ActivateTab(browser(), i);
    ASSERT_TRUE(contents_border->GetVisible());
  }
#endif
}

IN_PROC_BROWSER_TEST_F(MultipleTabSharingUIViewsBrowserTest, StopSharing) {
  AddTabs(browser(), 3);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 4);
  CreateUIsAndStartSharing(browser(), /*capturing_tab=*/0,
                           /*captured_tab_first=*/1, /*captured_tab_last=*/3);

  // Stop sharing tabs one by one and check that infobars are removed as well.
  size_t shared_tab_count = 3;
  while (shared_tab_count) {
    tab_sharing_ui_views(--shared_tab_count)->StopSharing("reason");
    for (int j = 0; j < browser()->GetTabStripModel()->count(); ++j) {
      ASSERT_EQ(shared_tab_count,
                GetInfoBarManager(browser(), j)->infobars().size());
    }
  }
}

IN_PROC_BROWSER_TEST_F(MultipleTabSharingUIViewsBrowserTest, CloseTabs) {
  AddTabs(browser(), 3);
  ASSERT_EQ(browser()->GetTabStripModel()->count(), 4);
  CreateUIsAndStartSharing(browser(), /*capturing_tab=*/0,
                           /*captured_tab_first=*/1, /*captured_tab_last=*/3);

  // Close shared tabs one by one and check that infobars are removed as well.
  TabStripModel* tab_strip_model = browser()->GetTabStripModel();
  while (tab_strip_model->count() > 1) {
    tab_strip_model->CloseWebContentsAt(1, TabCloseTypes::CLOSE_NONE);
    for (int i = 0; i < tab_strip_model->count(); ++i) {
      ASSERT_EQ(tab_strip_model->count() - 1u,
                GetInfoBarManager(browser(), i)->infobars().size());
    }
  }
}

// TODO(crbug.com/40267838): Enable on CrOS.
#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_CHROMEOS)
IN_PROC_BROWSER_TEST_F(
    MultipleTabSharingUIViewsBrowserTest,
    NormalModeCapturerDoesNotProduceInfobarInGuestModeTabOpenedBeforeCapture) {
  // Create a guest-mode browser.
  Browser* const guest_browser = CreateGuestBrowser();
  AddTabs(guest_browser, 1);
  ASSERT_EQ(guest_browser->GetTabStripModel()->count(), 2);

  // Create a normal-mode browser.
  Browser* const main_browser = CreateBrowser(browser()->GetProfile());
  AddTabs(main_browser, 1);
  ASSERT_EQ(main_browser->GetTabStripModel()->count(), 2);

  // Start a capture in the normal-mode capture.
  CreateUIsAndStartSharing(main_browser, /*capturing_tab=*/0,
                           /*captured_tab_first=*/1);

  // Expectation #1: The capture infobar is created in the profile
  // where capture is happening.
  EXPECT_EQ(GetInfoBarManager(main_browser, /*tab=*/0)->infobars().size(), 1u);
  EXPECT_EQ(GetInfoBarManager(main_browser, /*tab=*/1)->infobars().size(), 1u);

  // Expectation #2: The capture infobar is NOT created in the profile
  // where capture is NOT happening.
  EXPECT_EQ(GetInfoBarManager(guest_browser, /*tab=*/0)->infobars().size(), 0u);
  EXPECT_EQ(GetInfoBarManager(guest_browser, /*tab=*/1)->infobars().size(), 0u);
}

IN_PROC_BROWSER_TEST_F(
    MultipleTabSharingUIViewsBrowserTest,
    NormalModeCapturerDoesNotProduceInfobarInGuestModeTabOpenedAfterCapture) {
  // Create a normal-mode browser.
  Browser* const main_browser = CreateBrowser(browser()->GetProfile());
  AddTabs(main_browser, 1);
  ASSERT_EQ(main_browser->GetTabStripModel()->count(), 2);

  // Start a capture in the normal-mode capture.
  CreateUIsAndStartSharing(main_browser, /*capturing_tab=*/0,
                           /*captured_tab_first=*/1);

  // Create a guest-mode browser.
  Browser* const guest_browser = CreateGuestBrowser();
  AddTabs(guest_browser, 1);
  ASSERT_EQ(guest_browser->GetTabStripModel()->count(), 2);

  // Expectation #1: The capture infobar is created in the profile
  // where capture is happening.
  EXPECT_EQ(GetInfoBarManager(main_browser, /*tab=*/0)->infobars().size(), 1u);
  EXPECT_EQ(GetInfoBarManager(main_browser, /*tab=*/1)->infobars().size(), 1u);

  // Expectation #2: The capture infobar is NOT created in the profile
  // where capture is NOT happening.
  EXPECT_EQ(GetInfoBarManager(guest_browser, /*tab=*/0)->infobars().size(), 0u);
  EXPECT_EQ(GetInfoBarManager(guest_browser, /*tab=*/1)->infobars().size(), 0u);
}

IN_PROC_BROWSER_TEST_F(
    MultipleTabSharingUIViewsBrowserTest,
    GuestModeCapturerDoesNotProduceInfobarInNormalModeTabOpenedBeforeCapture) {
  // Create a normal-mode browser.
  Browser* const main_browser = CreateBrowser(browser()->GetProfile());
  AddTabs(main_browser, 1);
  ASSERT_EQ(main_browser->GetTabStripModel()->count(), 2);

  // Create a guest-mode browser.
  Browser* const guest_browser = CreateGuestBrowser();
  AddTabs(guest_browser, 1);
  ASSERT_EQ(guest_browser->GetTabStripModel()->count(), 2);

  // Start a capture in the guest-mode browser.
  CreateUIsAndStartSharing(guest_browser, /*capturing_tab=*/0,
                           /*captured_tab_first=*/1);

  // Expectation #1: The capture infobar is created in the profile
  // where capture is happening.
  EXPECT_EQ(GetInfoBarManager(guest_browser, /*tab=*/0)->infobars().size(), 1u);
  EXPECT_EQ(GetInfoBarManager(guest_browser, /*tab=*/1)->infobars().size(), 1u);

  // Expectation #2: The capture infobar is NOT created in the profile
  // where capture is NOT happening.
  EXPECT_EQ(GetInfoBarManager(main_browser, /*tab=*/0)->infobars().size(), 0u);
  EXPECT_EQ(GetInfoBarManager(main_browser, /*tab=*/1)->infobars().size(), 0u);
}

IN_PROC_BROWSER_TEST_F(
    MultipleTabSharingUIViewsBrowserTest,
    GuestModeCapturerDoesNotProduceInfobarInNormalModeTabOpenedAfterCapture) {
  // Create a guest-mode browser.
  Browser* const guest_browser = CreateGuestBrowser();
  AddTabs(guest_browser, 1);
  ASSERT_EQ(guest_browser->GetTabStripModel()->count(), 2);

  // Start a capture in the guest-mode browser.
  CreateUIsAndStartSharing(guest_browser, /*capturing_tab=*/0,
                           /*captured_tab_first=*/1);

  // Create a normal-mode browser.
  Browser* const main_browser = CreateBrowser(browser()->GetProfile());
  AddTabs(main_browser, 1);
  ASSERT_EQ(main_browser->GetTabStripModel()->count(), 2);

  // Expectation #1: The capture infobar is created in the profile
  // where capture is happening.
  EXPECT_EQ(GetInfoBarManager(guest_browser, /*tab=*/0)->infobars().size(), 1u);
  EXPECT_EQ(GetInfoBarManager(guest_browser, /*tab=*/1)->infobars().size(), 1u);

  // Expectation #2: The capture infobar is NOT created in the profile
  // where capture is NOT happening.
  EXPECT_EQ(GetInfoBarManager(main_browser, /*tab=*/0)->infobars().size(), 0u);
  EXPECT_EQ(GetInfoBarManager(main_browser, /*tab=*/1)->infobars().size(), 0u);
}

IN_PROC_BROWSER_TEST_F(MultipleTabSharingUIViewsBrowserTest,
                       TabsAddedInGuestModeHaveInfobarIfGuestModeCapture) {
  // Create a guest-mode browser.
  Browser* const guest_browser = CreateGuestBrowser();
  AddTabs(guest_browser, 1);
  ASSERT_EQ(guest_browser->GetTabStripModel()->count(), 2);

  // Start a capture in the guest-mode browser.
  CreateUIsAndStartSharing(guest_browser, /*capturing_tab=*/0,
                           /*captured_tab_first=*/1);

  // Sanity - existing tabs have an infobar.
  ASSERT_EQ(GetInfoBarManager(guest_browser, /*tab=*/0)->infobars().size(), 1u);
  ASSERT_EQ(GetInfoBarManager(guest_browser, /*tab=*/1)->infobars().size(), 1u);

  // Test focus - when adding a tab in guest mode, that tab has an infobar.
  AddTabs(guest_browser, 1);
  ASSERT_EQ(guest_browser->GetTabStripModel()->count(), 3);
  EXPECT_EQ(GetInfoBarManager(guest_browser, /*tab=*/2)->infobars().size(), 1u);
}
#endif

class TabSharingUIViewsPreferCurrentTabBrowserTest
    : public InProcessBrowserTest {
 public:
  ~TabSharingUIViewsPreferCurrentTabBrowserTest() override = default;

  void ManualSetUp(int captured_tab) {
    auto source_change_cb = base::BindRepeating(
        &TabSharingUIViewsPreferCurrentTabBrowserTest::SourceChange,
        base::Unretained(this));

    AddTabs(browser(), 1);  // Starts at 1, so we're up to 2.

    ActivateTab(browser(), kTab0);
    tab_sharing_ui_views_ = TabSharingUI::Create(
        GetGlobalId(browser(), kTab0),
        GetDesktopMediaID(browser(), captured_tab), u"capturer.com",
        /*app_preferred_current_tab=*/true,
        TabSharingInfoBarDelegate::TabShareType::CAPTURE,
        /*captured_surface_control_active=*/false);
    tab_sharing_ui_views_->OnStarted(base::OnceClosure(), source_change_cb,
                                     std::vector<content::DesktopMediaID>{});
  }

  void AddTabs(Browser* browser, int tab_count) {
    for (int i = 0; i < tab_count; ++i) {
      AddBlankTabAndShow(browser);
    }
  }

  void SourceChange(const content::DesktopMediaID& media_id,
                    bool captured_surface_control_active) {}

 protected:
  const int kTab0 = 0;
  const int kTab1 = 1;

  std::unique_ptr<TabSharingUI> tab_sharing_ui_views_;
};

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsPreferCurrentTabBrowserTest,
                       VerifyUiWhenSelfCapturing) {
  ManualSetUp(/*captured_tab=*/kTab0);

  // The tab which is capturing itself: [Stop]
  EXPECT_FALSE(HasShareThisTabInsteadButton(browser(), kTab0));

  // Any other tab: [Stop] [Share this tab instead]
  EXPECT_TRUE(HasShareThisTabInsteadButton(browser(), kTab1));
  EXPECT_EQ(GetShareThisTabInsteadButtonLabel(browser(), kTab1),
            kShareThisTabInsteadMessage);
}

IN_PROC_BROWSER_TEST_F(TabSharingUIViewsPreferCurrentTabBrowserTest,
                       VerifyUiWhenCapturingAnotherTab) {
  ManualSetUp(/*captured_tab=*/kTab1);

  // The capturing tab: [Stop] [Share this tab instead]
  EXPECT_TRUE(HasShareThisTabInsteadButton(browser(), kTab0));
  EXPECT_EQ(GetShareThisTabInsteadButtonLabel(browser(), kTab0),
            kShareThisTabInsteadMessage);

  // The captured tab: [Stop]
  EXPECT_FALSE(HasShareThisTabInsteadButton(browser(), kTab1));
}