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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/win/window_enumerator.h"
#include <windows.h>
#include <string>
#include <vector>
#include "base/test/bind.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base::win {
TEST(WindowEnumeratorTest, EnumerateTopLevelWindows) {
EnumerateChildWindows(
::GetDesktopWindow(), base::BindLambdaForTesting([&](HWND hwnd) {
const std::wstring window_class = GetWindowClass(hwnd);
EXPECT_EQ(window_class, [&] {
constexpr int kMaxWindowClassNameLength = 256;
wchar_t buffer[kMaxWindowClassNameLength + 1] = {};
const int name_len = ::GetClassName(hwnd, buffer, std::size(buffer));
if (name_len <= 0 || name_len > kMaxWindowClassNameLength) {
return std::wstring();
}
return std::wstring(&buffer[0], static_cast<size_t>(name_len));
}());
EXPECT_EQ(IsTopmostWindow(hwnd),
(::GetWindowLong(hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST) != 0);
EXPECT_EQ(IsSystemDialog(hwnd), window_class == L"#32770");
EXPECT_EQ(IsShellWindow(hwnd),
window_class == L"Button" ||
window_class == L"Shell_TrayWnd" ||
window_class == L"Shell_SecondaryTrayWnd");
EXPECT_EQ(GetWindowTextString(hwnd), [&] {
const int num_chars = ::GetWindowTextLength(hwnd);
if (!num_chars) {
return std::wstring();
}
std::vector<wchar_t> text(static_cast<size_t>(num_chars) + 1);
if (!::GetWindowText(hwnd, &text.front(),
static_cast<int>(text.size()))) {
return std::wstring();
}
return std::wstring(text.begin(), --text.end());
}());
return false;
}));
}
} // namespace base::win
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