chrome/browser/ui/views/frame/browser_view_browsertest.cc

// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/views/frame/browser_view.h"

#include "base/macros.h"
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "chrome/browser/accessibility/caption_controller.h"
#include "chrome/browser/accessibility/caption_controller_factory.h"
#include "chrome/browser/accessibility/caption_host_impl.h"
#include "chrome/browser/devtools/devtools_window_testing.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_tabstrip.h"
#include "chrome/browser/ui/tab_modal_confirm_dialog.h"
#include "chrome/browser/ui/tab_ui_helper.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/views/accessibility/caption_bubble_controller_views.h"
#include "chrome/browser/ui/views/bookmarks/bookmark_bar_view.h"
#include "chrome/browser/ui/views/bookmarks/bookmark_bar_view_observer.h"
#include "chrome/browser/ui/views/tabs/tab_strip.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/chromium_strings.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "components/bookmarks/common/bookmark_pref_names.h"
#include "components/prefs/pref_service.h"
#include "content/public/browser/invalidate_type.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/test_navigation_observer.h"
#include "media/base/media_switches.h"
#include "ui/accessibility/platform/ax_platform_node.h"
#include "ui/accessibility/platform/ax_platform_node_test_helper.h"
#include "ui/base/l10n/l10n_util.h"

#if defined(USE_AURA)
#include "ui/aura/client/focus_client.h"
#include "ui/views/widget/native_widget_aura.h"
#endif  // USE_AURA

class BrowserViewTest : public InProcessBrowserTest {
 public:
  BrowserViewTest() : devtools_(nullptr) {
    // TODO(crbug.com/1182859): Update this test to enable the
    // kUseSodaForLiveCaption feature.
    scoped_feature_list_.InitWithFeatures({media::kLiveCaption},
                                          {media::kUseSodaForLiveCaption});
  }

 protected:
  BrowserView* browser_view() {
    return BrowserView::GetBrowserViewForBrowser(browser());
  }

  views::WebView* devtools_web_view() {
    return browser_view()->GetDevToolsWebViewForTest();
  }

  views::WebView* contents_web_view() {
    return browser_view()->contents_web_view();
  }

  void OpenDevToolsWindow(bool docked) {
    devtools_ =
        DevToolsWindowTesting::OpenDevToolsWindowSync(browser(), docked);
  }

  void CloseDevToolsWindow() {
    DevToolsWindowTesting::CloseDevToolsWindowSync(devtools_);
  }

  void SetDevToolsBounds(const gfx::Rect& bounds) {
    DevToolsWindowTesting::Get(devtools_)->SetInspectedPageBounds(bounds);
  }

  DevToolsWindow* devtools_;

 private:
  base::test::ScopedFeatureList scoped_feature_list_;

  DISALLOW_COPY_AND_ASSIGN(BrowserViewTest);
};

namespace {

// Used to simulate scenario in a crash. When WebContentsDestroyed() is invoked
// updates the navigation state of another tab.
class TestWebContentsObserver : public content::WebContentsObserver {
 public:
  TestWebContentsObserver(content::WebContents* source,
                          content::WebContents* other)
      : content::WebContentsObserver(source),
        other_(other) {}
  ~TestWebContentsObserver() override {}

  void WebContentsDestroyed() override {
    other_->NotifyNavigationStateChanged(static_cast<content::InvalidateTypes>(
        content::INVALIDATE_TYPE_URL | content::INVALIDATE_TYPE_LOAD));
  }

 private:
  content::WebContents* other_;

  DISALLOW_COPY_AND_ASSIGN(TestWebContentsObserver);
};

class TestTabModalConfirmDialogDelegate : public TabModalConfirmDialogDelegate {
 public:
  explicit TestTabModalConfirmDialogDelegate(content::WebContents* contents)
      : TabModalConfirmDialogDelegate(contents) {}
  std::u16string GetTitle() override { return std::u16string(u"Dialog Title"); }
  std::u16string GetDialogMessage() override { return std::u16string(); }

  DISALLOW_COPY_AND_ASSIGN(TestTabModalConfirmDialogDelegate);
};
}  // namespace

// Verifies don't crash when CloseNow() is invoked with two tabs in a browser.
// Additionally when one of the tabs is destroyed NotifyNavigationStateChanged()
// is invoked on the other.
IN_PROC_BROWSER_TEST_F(BrowserViewTest, CloseWithTabs) {
  Browser* browser2 =
      Browser::Create(Browser::CreateParams(browser()->profile(), true));
  chrome::AddTabAt(browser2, GURL(), -1, true);
  chrome::AddTabAt(browser2, GURL(), -1, true);
  TestWebContentsObserver observer(
      browser2->tab_strip_model()->GetWebContentsAt(0),
      browser2->tab_strip_model()->GetWebContentsAt(1));
  BrowserView::GetBrowserViewForBrowser(browser2)->GetWidget()->CloseNow();
}

// Same as CloseWithTabs, but activates the first tab, which is the first tab
// BrowserView will destroy.
IN_PROC_BROWSER_TEST_F(BrowserViewTest, CloseWithTabsStartWithActive) {
  Browser* browser2 =
      Browser::Create(Browser::CreateParams(browser()->profile(), true));
  chrome::AddTabAt(browser2, GURL(), -1, true);
  chrome::AddTabAt(browser2, GURL(), -1, true);
  browser2->tab_strip_model()->ActivateTabAt(
      0, {TabStripModel::GestureType::kOther});
  TestWebContentsObserver observer(
      browser2->tab_strip_model()->GetWebContentsAt(0),
      browser2->tab_strip_model()->GetWebContentsAt(1));
  BrowserView::GetBrowserViewForBrowser(browser2)->GetWidget()->CloseNow();
}

// Verifies that page and devtools WebViews are being correctly layed out
// when DevTools is opened/closed/updated/undocked.
IN_PROC_BROWSER_TEST_F(BrowserViewTest, DevToolsUpdatesBrowserWindow) {
  gfx::Rect full_bounds =
      browser_view()->GetContentsContainerForTest()->GetLocalBounds();
  gfx::Rect small_bounds(10, 20, 30, 40);

  browser_view()->UpdateDevTools();
  EXPECT_FALSE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());
  EXPECT_EQ(full_bounds, contents_web_view()->bounds());

  // Docked.
  OpenDevToolsWindow(true);
  EXPECT_TRUE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());

  SetDevToolsBounds(small_bounds);
  EXPECT_TRUE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());
  EXPECT_EQ(small_bounds, contents_web_view()->bounds());

  browser_view()->UpdateDevTools();
  EXPECT_TRUE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());
  EXPECT_EQ(small_bounds, contents_web_view()->bounds());

  CloseDevToolsWindow();
  EXPECT_FALSE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());
  EXPECT_EQ(full_bounds, contents_web_view()->bounds());

  browser_view()->UpdateDevTools();
  EXPECT_FALSE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());
  EXPECT_EQ(full_bounds, contents_web_view()->bounds());

  // Undocked.
  OpenDevToolsWindow(false);
  EXPECT_TRUE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());

  SetDevToolsBounds(small_bounds);
  EXPECT_TRUE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());
  EXPECT_EQ(small_bounds, contents_web_view()->bounds());

  browser_view()->UpdateDevTools();
  EXPECT_TRUE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());
  EXPECT_EQ(small_bounds, contents_web_view()->bounds());

  CloseDevToolsWindow();
  EXPECT_FALSE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());
  EXPECT_EQ(full_bounds, contents_web_view()->bounds());

  browser_view()->UpdateDevTools();
  EXPECT_FALSE(devtools_web_view()->web_contents());
  EXPECT_EQ(full_bounds, devtools_web_view()->bounds());
  EXPECT_EQ(full_bounds, contents_web_view()->bounds());
}

class BookmarkBarViewObserverImpl : public BookmarkBarViewObserver {
 public:
  BookmarkBarViewObserverImpl() : change_count_(0) {
  }

  int change_count() const { return change_count_; }
  void clear_change_count() { change_count_ = 0; }

  // BookmarkBarViewObserver:
  void OnBookmarkBarVisibilityChanged() override { change_count_++; }

 private:
  int change_count_ = 0;

  DISALLOW_COPY_AND_ASSIGN(BookmarkBarViewObserverImpl);
};

// Verifies we don't unnecessarily change the visibility of the BookmarkBarView.
IN_PROC_BROWSER_TEST_F(BrowserViewTest, AvoidUnnecessaryVisibilityChanges) {
  // Create two tabs, the first empty and the second the ntp. Make it so the
  // BookmarkBarView isn't shown.
  browser()->profile()->GetPrefs()->SetBoolean(
      bookmarks::prefs::kShowBookmarkBar, false);
  GURL new_tab_url(chrome::kChromeUINewTabURL);
  chrome::AddTabAt(browser(), GURL(), -1, true);
  ui_test_utils::NavigateToURL(browser(), new_tab_url);

  ASSERT_TRUE(browser_view()->bookmark_bar());
  BookmarkBarViewObserverImpl observer;
  BookmarkBarView* bookmark_bar = browser_view()->bookmark_bar();
  bookmark_bar->AddObserver(&observer);
  EXPECT_FALSE(bookmark_bar->GetVisible());

  // Go to empty tab. Bookmark bar should hide.
  browser()->tab_strip_model()->ActivateTabAt(
      0, {TabStripModel::GestureType::kOther});
  EXPECT_FALSE(bookmark_bar->GetVisible());
  EXPECT_EQ(0, observer.change_count());
  observer.clear_change_count();

  // Go to ntp tab. Bookmark bar should not show.
  browser()->tab_strip_model()->ActivateTabAt(
      1, {TabStripModel::GestureType::kOther});
  EXPECT_FALSE(bookmark_bar->GetVisible());
  EXPECT_EQ(0, observer.change_count());
  observer.clear_change_count();

  // Repeat with the bookmark bar always visible.
  browser()->profile()->GetPrefs()->SetBoolean(
      bookmarks::prefs::kShowBookmarkBar, true);
  browser()->tab_strip_model()->ActivateTabAt(
      0, {TabStripModel::GestureType::kOther});
  EXPECT_TRUE(bookmark_bar->GetVisible());
  EXPECT_EQ(1, observer.change_count());
  observer.clear_change_count();

  browser()->tab_strip_model()->ActivateTabAt(
      1, {TabStripModel::GestureType::kOther});
  EXPECT_TRUE(bookmark_bar->GetVisible());
  EXPECT_EQ(0, observer.change_count());
  observer.clear_change_count();

  browser_view()->bookmark_bar()->RemoveObserver(&observer);
}

// Launch the app, navigate to a page with a title, check that the tab title
// is set before load finishes and the throbber state updates when the title
// changes. Regression test for crbug.com/752266
IN_PROC_BROWSER_TEST_F(BrowserViewTest, TitleAndLoadState) {
  const std::u16string test_title(u"Title Of Awesomeness");
  auto* contents = browser()->tab_strip_model()->GetActiveWebContents();
  content::TitleWatcher title_watcher(contents, test_title);
  content::TestNavigationObserver navigation_watcher(
      contents, 1, content::MessageLoopRunner::QuitMode::DEFERRED);

  TabStrip* tab_strip = browser_view()->tabstrip();
  // Navigate without blocking.
  const GURL test_url = ui_test_utils::GetTestUrl(
      base::FilePath(base::FilePath::kCurrentDirectory),
      base::FilePath(FILE_PATH_LITERAL("title2.html")));
  contents->GetController().LoadURL(test_url, content::Referrer(),
                                    ui::PAGE_TRANSITION_LINK, std::string());
  EXPECT_TRUE(browser()->tab_strip_model()->TabsAreLoading());
  EXPECT_EQ(TabNetworkState::kWaiting,
            tab_strip->tab_at(0)->data().network_state);
  EXPECT_EQ(test_title, title_watcher.WaitAndGetTitle());
  EXPECT_TRUE(browser()->tab_strip_model()->TabsAreLoading());
  EXPECT_EQ(TabNetworkState::kLoading,
            tab_strip->tab_at(0)->data().network_state);

  // Now block for the navigation to complete.
  navigation_watcher.Wait();
  EXPECT_FALSE(browser()->tab_strip_model()->TabsAreLoading());
  EXPECT_EQ(TabNetworkState::kNone, tab_strip->tab_at(0)->data().network_state);
}

// Verifies a tab should show its favicon.
IN_PROC_BROWSER_TEST_F(BrowserViewTest, ShowFaviconInTab) {
  // Opens "chrome://version/" page, which uses default favicon.
  GURL version_url(chrome::kChromeUIVersionURL);
  ui_test_utils::NavigateToURL(browser(), version_url);
  auto* contents = browser()->tab_strip_model()->GetActiveWebContents();
  auto* helper = TabUIHelper::FromWebContents(contents);
  ASSERT_TRUE(helper);

  auto favicon = helper->GetFavicon();
  ASSERT_FALSE(favicon.IsEmpty());
}

// On Mac, voiceover treats tab modal dialogs as native windows, so setting an
// accessible title for tab-modal dialogs is not necessary.
#if !defined(OS_MAC)

// Open a tab-modal dialog and check that the accessible window title is the
// title of the dialog.
IN_PROC_BROWSER_TEST_F(BrowserViewTest, GetAccessibleTabModalDialogTitle) {
  std::u16string window_title =
      u"about:blank - " + l10n_util::GetStringUTF16(IDS_PRODUCT_NAME);
  EXPECT_TRUE(base::StartsWith(browser_view()->GetAccessibleWindowTitle(),
                               window_title, base::CompareCase::SENSITIVE));

  content::WebContents* contents = browser_view()->GetActiveWebContents();
  auto delegate = std::make_unique<TestTabModalConfirmDialogDelegate>(contents);
  TestTabModalConfirmDialogDelegate* delegate_observer = delegate.get();
  TabModalConfirmDialog::Create(std::move(delegate), contents);
  EXPECT_EQ(browser_view()->GetAccessibleWindowTitle(),
            delegate_observer->GetTitle());

  delegate_observer->Close();

  EXPECT_TRUE(base::StartsWith(browser_view()->GetAccessibleWindowTitle(),
                               window_title, base::CompareCase::SENSITIVE));
}

// Open a tab-modal dialog and check that the accessibility tree only contains
// the dialog.
IN_PROC_BROWSER_TEST_F(BrowserViewTest, GetAccessibleTabModalDialogTree) {
  ui::AXPlatformNode::NotifyAddAXModeFlags(ui::kAXModeComplete);
  ui::AXPlatformNode* ax_node = ui::AXPlatformNode::FromNativeViewAccessible(
      browser_view()->GetWidget()->GetRootView()->GetNativeViewAccessible());
// We expect this conversion to be safe on Windows, but can't guarantee that it
// is safe on other platforms.
#if defined(OS_WIN)
  ASSERT_TRUE(ax_node);
#else
  if (!ax_node)
    return;
#endif

  // There is no dialog, but the browser UI should be visible. So we expect the
  // browser's reload button and no "OK" button from a dialog.
  EXPECT_NE(ui::AXPlatformNodeTestHelper::FindChildByName(ax_node, "Reload"),
            nullptr);
  EXPECT_EQ(ui::AXPlatformNodeTestHelper::FindChildByName(ax_node, "OK"),
            nullptr);

  content::WebContents* contents = browser_view()->GetActiveWebContents();
  auto delegate = std::make_unique<TestTabModalConfirmDialogDelegate>(contents);
  TabModalConfirmDialog::Create(std::move(delegate), contents);

  // The tab modal dialog should be in the accessibility tree; everything else
  // should be hidden. So we expect an "OK" button and no reload button.
  EXPECT_EQ(ui::AXPlatformNodeTestHelper::FindChildByName(ax_node, "Reload"),
            nullptr);
  EXPECT_NE(ui::AXPlatformNodeTestHelper::FindChildByName(ax_node, "OK"),
            nullptr);
}

#endif  // !defined(OS_MAC)

// Mac processes different accelerators and also focuses differently.
// TODO(crbug.com/1055150): Implement RotatePaneFocus for Mac and add a similar
// test using command+option+down/up arrows.
#if !defined(OS_MAC)
IN_PROC_BROWSER_TEST_F(BrowserViewTest, F6CyclesThroughCaptionBubbleToo) {
  captions::CaptionController* caption_controller =
      captions::CaptionControllerFactory::GetForProfileIfExists(
          browser()->profile());
  caption_controller->Init();
  browser()->profile()->GetPrefs()->SetBoolean(prefs::kLiveCaptionEnabled,
                                               true);
  // No bubble is shown until a transcription happens.
  captions::CaptionBubbleControllerViews* bubble_controller =
      static_cast<captions::CaptionBubbleControllerViews*>(
          caption_controller->GetCaptionBubbleControllerForBrowser(browser()));
  EXPECT_FALSE(bubble_controller->GetFocusableCaptionBubble());

  auto caption_host_impl = std::make_unique<captions::CaptionHostImpl>(
      browser()->tab_strip_model()->GetActiveWebContents()->GetMainFrame());
  caption_controller->DispatchTranscription(
      caption_host_impl.get(),
      chrome::mojom::TranscriptionResult::New("Hello, world", false));
  // Now the caption bubble exists but is not focused.
  views::View* bubble = bubble_controller->GetFocusableCaptionBubble();
  EXPECT_TRUE(bubble);
  EXPECT_TRUE(bubble->GetWidget()->IsVisible());
  EXPECT_FALSE(bubble->HasFocus());
  EXPECT_FALSE(bubble->GetFocusManager()->GetFocusedView());

  // Press F6 until we enter the bubble.
  while (!bubble->HasFocus()) {
    EXPECT_TRUE(
        browser_view()->AcceleratorPressed(ui::Accelerator(ui::VKEY_F6, 0)));
  }

#if defined(USE_AURA) && !BUILDFLAG(IS_CHROMEOS_ASH)
  // Check the native widget has focus.
  aura::client::FocusClient* focus_client =
      aura::client::GetFocusClient(bubble->GetWidget()->GetNativeView());
  EXPECT_TRUE(bubble->GetWidget()->GetNativeView() ==
              focus_client->GetFocusedWindow());
#endif

  // F6 again exits the bubble. Because the bubble is focused, it gets the
  // accelerator event.
  EXPECT_TRUE(bubble->AcceleratorPressed(ui::Accelerator(ui::VKEY_F6, 0)));

  // Now something else within the browser_view's focus manager is focused.
  EXPECT_FALSE(bubble->HasFocus());
  EXPECT_FALSE(bubble->GetFocusManager()->GetFocusedView());
  EXPECT_TRUE(browser_view()->GetWidget()->GetFocusManager()->GetFocusedView());
#if defined(USE_AURA) && !BUILDFLAG(IS_CHROMEOS_ASH)
  // The bubble's native widget should no longer have focus.
  EXPECT_FALSE(bubble->GetWidget()->GetNativeView() ==
               focus_client->GetFocusedWindow());
#endif
}
#endif