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Diffstat (limited to 'widget/tests/gtest/TestWinWindowOcclusionTracker.cpp')
| -rw-r--r-- | widget/tests/gtest/TestWinWindowOcclusionTracker.cpp | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/widget/tests/gtest/TestWinWindowOcclusionTracker.cpp b/widget/tests/gtest/TestWinWindowOcclusionTracker.cpp new file mode 100644 index 0000000000..b1f1114a3a --- /dev/null +++ b/widget/tests/gtest/TestWinWindowOcclusionTracker.cpp @@ -0,0 +1,167 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "gtest/gtest.h" + +#include <dwmapi.h> +#include <windows.h> + +#include "MockWinWidget.h" +#include "mozilla/widget/WinWindowOcclusionTracker.h" +#include "mozilla/WindowsVersion.h" + +using namespace mozilla; +using namespace mozilla::widget; + +class WinWindowOcclusionTrackerTest : public ::testing::Test { + protected: + HWND CreateNativeWindow(DWORD aStyle, DWORD aExStyle) { + mMockWinWidget = + MockWinWidget::Create(WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN | aStyle, + aExStyle, LayoutDeviceIntRect(0, 0, 100, 100)); + EXPECT_NE(nullptr, mMockWinWidget.get()); + HWND hwnd = mMockWinWidget->GetWnd(); + HRGN region = ::CreateRectRgn(0, 0, 0, 0); + EXPECT_NE(nullptr, region); + if (::GetWindowRgn(hwnd, region) == COMPLEXREGION) { + // On Windows 7, the newly created window has a complex region, which + // means it will be ignored during the occlusion calculation. So, force + // it to have a simple region so that we get test coverage on win 7. + RECT boundingRect; + EXPECT_TRUE(::GetWindowRect(hwnd, &boundingRect)); + HRGN rectangularRegion = ::CreateRectRgnIndirect(&boundingRect); + EXPECT_NE(nullptr, rectangularRegion); + ::SetWindowRgn(hwnd, rectangularRegion, /* bRedraw = */ TRUE); + ::DeleteObject(rectangularRegion); + } + ::DeleteObject(region); + + ::ShowWindow(hwnd, SW_SHOWNORMAL); + EXPECT_TRUE(UpdateWindow(hwnd)); + return hwnd; + } + + // Wrapper around IsWindowVisibleAndFullyOpaque so only the test class + // needs to be a friend of NativeWindowOcclusionTrackerWin. + bool CheckWindowVisibleAndFullyOpaque(HWND aHWnd, + LayoutDeviceIntRect* aWinRect) { + bool ret = WinWindowOcclusionTracker::IsWindowVisibleAndFullyOpaque( + aHWnd, aWinRect); + // In general, if IsWindowVisibleAndFullyOpaque returns false, the + // returned rect should not be altered. + if (!ret) { + EXPECT_EQ(*aWinRect, LayoutDeviceIntRect(0, 0, 0, 0)); + } + return ret; + } + + RefPtr<MockWinWidget> mMockWinWidget; +}; + +TEST_F(WinWindowOcclusionTrackerTest, VisibleOpaqueWindow) { + HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, /* aExStyle = */ 0); + LayoutDeviceIntRect returnedRect; + // Normal windows should be visible. + EXPECT_TRUE(CheckWindowVisibleAndFullyOpaque(hwnd, &returnedRect)); + + // Check that the returned rect == the actual window rect of the hwnd. + RECT winRect; + ASSERT_TRUE(::GetWindowRect(hwnd, &winRect)); + EXPECT_EQ(returnedRect, LayoutDeviceIntRect(winRect.left, winRect.top, + winRect.right - winRect.left, + winRect.bottom - winRect.top)); +} + +TEST_F(WinWindowOcclusionTrackerTest, MinimizedWindow) { + HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, /* aExStyle = */ 0); + LayoutDeviceIntRect winRect; + ::ShowWindow(hwnd, SW_MINIMIZE); + // Minimized windows are not considered visible. + EXPECT_FALSE(CheckWindowVisibleAndFullyOpaque(hwnd, &winRect)); +} + +TEST_F(WinWindowOcclusionTrackerTest, TransparentWindow) { + HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, WS_EX_TRANSPARENT); + LayoutDeviceIntRect winRect; + // Transparent windows are not considered visible and opaque. + EXPECT_FALSE(CheckWindowVisibleAndFullyOpaque(hwnd, &winRect)); +} + +TEST_F(WinWindowOcclusionTrackerTest, ToolWindow) { + HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, WS_EX_TOOLWINDOW); + LayoutDeviceIntRect winRect; + // Tool windows are not considered visible and opaque. + EXPECT_FALSE(CheckWindowVisibleAndFullyOpaque(hwnd, &winRect)); +} + +TEST_F(WinWindowOcclusionTrackerTest, LayeredAlphaWindow) { + HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, WS_EX_LAYERED); + LayoutDeviceIntRect winRect; + BYTE alpha = 1; + DWORD flags = LWA_ALPHA; + COLORREF colorRef = RGB(1, 1, 1); + SetLayeredWindowAttributes(hwnd, colorRef, alpha, flags); + // Layered windows with alpha < 255 are not considered visible and opaque. + EXPECT_FALSE(CheckWindowVisibleAndFullyOpaque(hwnd, &winRect)); +} + +TEST_F(WinWindowOcclusionTrackerTest, UpdatedLayeredAlphaWindow) { + HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, WS_EX_LAYERED); + LayoutDeviceIntRect winRect; + HDC hdc = ::CreateCompatibleDC(nullptr); + EXPECT_NE(nullptr, hdc); + BLENDFUNCTION blend = {AC_SRC_OVER, 0x00, 0xFF, AC_SRC_ALPHA}; + + ::UpdateLayeredWindow(hwnd, hdc, nullptr, nullptr, nullptr, nullptr, + RGB(0xFF, 0xFF, 0xFF), &blend, ULW_OPAQUE); + // Layered windows set up with UpdateLayeredWindow instead of + // SetLayeredWindowAttributes should not be considered visible and opaque. + EXPECT_FALSE(CheckWindowVisibleAndFullyOpaque(hwnd, &winRect)); + ::DeleteDC(hdc); +} + +TEST_F(WinWindowOcclusionTrackerTest, LayeredNonAlphaWindow) { + HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, WS_EX_LAYERED); + LayoutDeviceIntRect winRect; + BYTE alpha = 1; + DWORD flags = 0; + COLORREF colorRef = RGB(1, 1, 1); + ::SetLayeredWindowAttributes(hwnd, colorRef, alpha, flags); + // Layered non alpha windows are considered visible and opaque. + EXPECT_TRUE(CheckWindowVisibleAndFullyOpaque(hwnd, &winRect)); +} + +TEST_F(WinWindowOcclusionTrackerTest, ComplexRegionWindow) { + HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, /* aExStyle = */ 0); + LayoutDeviceIntRect winRect; + // Create a region with rounded corners, which should be a complex region. + HRGN region = CreateRoundRectRgn(1, 1, 100, 100, 5, 5); + EXPECT_NE(nullptr, region); + ::SetWindowRgn(hwnd, region, /* bRedraw = */ TRUE); + // Windows with complex regions are not considered visible and fully opaque. + EXPECT_FALSE(CheckWindowVisibleAndFullyOpaque(hwnd, &winRect)); + DeleteObject(region); +} + +TEST_F(WinWindowOcclusionTrackerTest, PopupWindow) { + HWND hwnd = CreateNativeWindow(WS_POPUP, /* aExStyle = */ 0); + LayoutDeviceIntRect winRect; + // Normal Popup Windows are not considered visible. + EXPECT_FALSE(CheckWindowVisibleAndFullyOpaque(hwnd, &winRect)); +} + +TEST_F(WinWindowOcclusionTrackerTest, CloakedWindow) { + // Cloaking is only supported in Windows 8 and above. + if (!IsWin8OrLater()) { + return; + } + HWND hwnd = CreateNativeWindow(/* aStyle = */ 0, /* aExStyle = */ 0); + LayoutDeviceIntRect winRect; + BOOL cloak = TRUE; + ::DwmSetWindowAttribute(hwnd, DWMWA_CLOAK, &cloak, sizeof(cloak)); + // Cloaked Windows are not considered visible. + EXPECT_FALSE(CheckWindowVisibleAndFullyOpaque(hwnd, &winRect)); +} |