/*
 *  Copyright 2009 The WebRTC Project Authors. All rights reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "rtc_base/win32_window.h"
#include "rtc_base/gunit.h"
#include "rtc_base/logging.h"

static LRESULT kDummyResult = 0x1234ABCD;

class TestWindow : public rtc::Win32Window {
 public:
  TestWindow() : destroyed_(false) { memset(&msg_, 0, sizeof(msg_)); }
  const MSG& msg() const { return msg_; }
  bool destroyed() const { return destroyed_; }

  bool OnMessage(UINT uMsg,
                 WPARAM wParam,
                 LPARAM lParam,
                 LRESULT& result) override {
    msg_.message = uMsg;
    msg_.wParam = wParam;
    msg_.lParam = lParam;
    result = kDummyResult;
    return true;
  }
  void OnNcDestroy() override { destroyed_ = true; }

 private:
  MSG msg_;
  bool destroyed_;
};

TEST(Win32WindowTest, Basics) {
  TestWindow wnd;
  EXPECT_TRUE(wnd.handle() == nullptr);
  EXPECT_FALSE(wnd.destroyed());
  EXPECT_TRUE(wnd.Create(0, L"Test", 0, 0, 0, 0, 100, 100));
  EXPECT_TRUE(wnd.handle() != nullptr);
  EXPECT_EQ(kDummyResult, ::SendMessage(wnd.handle(), WM_USER, 1, 2));
  EXPECT_EQ(static_cast<UINT>(WM_USER), wnd.msg().message);
  EXPECT_EQ(1u, wnd.msg().wParam);
  EXPECT_EQ(2l, wnd.msg().lParam);
  wnd.Destroy();
  EXPECT_TRUE(wnd.handle() == nullptr);
  EXPECT_TRUE(wnd.destroyed());
}

TEST(Win32WindowTest, MultipleWindows) {
  TestWindow wnd1, wnd2;
  EXPECT_TRUE(wnd1.Create(0, L"Test", 0, 0, 0, 0, 100, 100));
  EXPECT_TRUE(wnd2.Create(0, L"Test", 0, 0, 0, 0, 100, 100));
  EXPECT_TRUE(wnd1.handle() != nullptr);
  EXPECT_TRUE(wnd2.handle() != nullptr);
  wnd1.Destroy();
  wnd2.Destroy();
  EXPECT_TRUE(wnd2.handle() == nullptr);
  EXPECT_TRUE(wnd1.handle() == nullptr);
}