chrome/browser/headless/headless_mode_browsertest_win.cc

// Copyright 2022 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/headless/headless_mode_browsertest.h"

#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_window.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/views/widget/desktop_aura/desktop_window_tree_host_win.h"

// A class to expose a protected method for testing purposes.
class DesktopWindowTreeHostWinWrapper : public views::DesktopWindowTreeHostWin {
 public:
  HWND GetHWND() const { return DesktopWindowTreeHostWin::GetHWND(); }
};

INSTANTIATE_TEST_SUITE_P(HeadlessModeBrowserTestWithStartWindowMode,
                         HeadlessModeBrowserTestWithStartWindowMode,
                         testing::Values(kStartWindowNormal,
                                         kStartWindowMaximized,
                                         kStartWindowFullscreen));

IN_PROC_BROWSER_TEST_P(HeadlessModeBrowserTestWithStartWindowMode,
                       BrowserDesktopWindowHidden) {
  // On Windows, the Native Headless Chrome browser window exists and is
  // visible, while the underlying platform window is hidden.
  EXPECT_TRUE(browser()->window()->IsVisible());

  DesktopWindowTreeHostWinWrapper* desktop_window_tree_host =
      static_cast<DesktopWindowTreeHostWinWrapper*>(
          browser()->window()->GetNativeWindow()->GetHost());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_tree_host->GetHWND()));
}

IN_PROC_BROWSER_TEST_F(HeadlessModeBrowserTest,
                       ToggleFullscreenWindowVisibility) {
  DesktopWindowTreeHostWinWrapper* desktop_window_tree_host =
      static_cast<DesktopWindowTreeHostWinWrapper*>(
          browser()->window()->GetNativeWindow()->GetHost());
  HWND desktop_window_hwnd = desktop_window_tree_host->GetHWND();

  // Verify initial state.
  ASSERT_FALSE(browser()->window()->IsFullscreen());
  EXPECT_TRUE(browser()->window()->IsVisible());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));

  // Verify fullscreen state.
  ToggleFullscreenModeSync(browser());
  ASSERT_TRUE(browser()->window()->IsFullscreen());
  EXPECT_TRUE(browser()->window()->IsVisible());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));

  // Verify back to normal state.
  ToggleFullscreenModeSync(browser());
  ASSERT_FALSE(browser()->window()->IsFullscreen());
  EXPECT_TRUE(browser()->window()->IsVisible());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));
}

IN_PROC_BROWSER_TEST_F(HeadlessModeBrowserTest,
                       MinimizedRestoredWindowVisibility) {
  DesktopWindowTreeHostWinWrapper* desktop_window_tree_host =
      static_cast<DesktopWindowTreeHostWinWrapper*>(
          browser()->window()->GetNativeWindow()->GetHost());
  HWND desktop_window_hwnd = desktop_window_tree_host->GetHWND();

  // Verify initial state.
  ASSERT_FALSE(browser()->window()->IsMinimized());
  EXPECT_TRUE(browser()->window()->IsVisible());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));

  // Verify minimized state.
  browser()->window()->Minimize();
  ASSERT_TRUE(browser()->window()->IsMinimized());
  EXPECT_TRUE(browser()->window()->IsVisible());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));

  // Verify restored state.
  browser()->window()->Restore();
  ASSERT_FALSE(browser()->window()->IsMinimized());
  EXPECT_TRUE(browser()->window()->IsVisible());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));
}

IN_PROC_BROWSER_TEST_F(HeadlessModeBrowserTest,
                       MaximizedRestoredWindowVisibility) {
  DesktopWindowTreeHostWinWrapper* desktop_window_tree_host =
      static_cast<DesktopWindowTreeHostWinWrapper*>(
          browser()->window()->GetNativeWindow()->GetHost());
  HWND desktop_window_hwnd = desktop_window_tree_host->GetHWND();

  // Verify initial state.
  ASSERT_FALSE(browser()->window()->IsMaximized());
  EXPECT_TRUE(browser()->window()->IsVisible());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));

  // Verify maximized state.
  browser()->window()->Maximize();
  ASSERT_TRUE(browser()->window()->IsMaximized());
  EXPECT_TRUE(browser()->window()->IsVisible());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));

  // Verify restored state.
  browser()->window()->Restore();
  ASSERT_FALSE(browser()->window()->IsMaximized());
  EXPECT_TRUE(browser()->window()->IsVisible());
  EXPECT_FALSE(::IsWindowVisible(desktop_window_hwnd));
}