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| 1 /* | |
| 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include "webrtc/base/checks.h" | |
| 12 #include "webrtc/base/logging.h" | |
| 13 #include "webrtc/base/win32window.h" | |
| 14 | |
| 15 namespace rtc { | |
| 16 | |
| 17 /////////////////////////////////////////////////////////////////////////////// | |
| 18 // Win32Window | |
| 19 /////////////////////////////////////////////////////////////////////////////// | |
| 20 | |
| 21 static const wchar_t kWindowBaseClassName[] = L"WindowBaseClass"; | |
| 22 HINSTANCE Win32Window::instance_ = nullptr; | |
| 23 ATOM Win32Window::window_class_ = 0; | |
| 24 | |
| 25 Win32Window::Win32Window() : wnd_(nullptr) {} | |
| 26 | |
| 27 Win32Window::~Win32Window() { | |
| 28 RTC_DCHECK(nullptr == wnd_); | |
| 29 } | |
| 30 | |
| 31 bool Win32Window::Create(HWND parent, const wchar_t* title, DWORD style, | |
| 32 DWORD exstyle, int x, int y, int cx, int cy) { | |
| 33 if (wnd_) { | |
| 34 // Window already exists. | |
| 35 return false; | |
| 36 } | |
| 37 | |
| 38 if (!window_class_) { | |
| 39 if (!GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | | |
| 40 GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, | |
| 41 reinterpret_cast<LPCWSTR>(&Win32Window::WndProc), | |
| 42 &instance_)) { | |
| 43 LOG_GLE(LS_ERROR) << "GetModuleHandleEx failed"; | |
| 44 return false; | |
| 45 } | |
| 46 | |
| 47 // Class not registered, register it. | |
| 48 WNDCLASSEX wcex; | |
| 49 memset(&wcex, 0, sizeof(wcex)); | |
| 50 wcex.cbSize = sizeof(wcex); | |
| 51 wcex.hInstance = instance_; | |
| 52 wcex.lpfnWndProc = &Win32Window::WndProc; | |
| 53 wcex.lpszClassName = kWindowBaseClassName; | |
| 54 window_class_ = ::RegisterClassEx(&wcex); | |
| 55 if (!window_class_) { | |
| 56 LOG_GLE(LS_ERROR) << "RegisterClassEx failed"; | |
| 57 return false; | |
| 58 } | |
| 59 } | |
| 60 wnd_ = ::CreateWindowEx(exstyle, kWindowBaseClassName, title, style, x, y, cx, | |
| 61 cy, parent, nullptr, instance_, this); | |
| 62 return (nullptr != wnd_); | |
| 63 } | |
| 64 | |
| 65 void Win32Window::Destroy() { | |
| 66 const bool success = ::DestroyWindow(wnd_); | |
| 67 RTC_DCHECK(success); | |
| 68 } | |
| 69 | |
| 70 void Win32Window::Shutdown() { | |
| 71 if (window_class_) { | |
| 72 ::UnregisterClass(MAKEINTATOM(window_class_), instance_); | |
| 73 window_class_ = 0; | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 bool Win32Window::OnMessage(UINT uMsg, WPARAM wParam, LPARAM lParam, | |
| 78 LRESULT& result) { | |
| 79 switch (uMsg) { | |
| 80 case WM_CLOSE: | |
| 81 if (!OnClose()) { | |
| 82 result = 0; | |
| 83 return true; | |
| 84 } | |
| 85 break; | |
| 86 } | |
| 87 return false; | |
| 88 } | |
| 89 | |
| 90 LRESULT Win32Window::WndProc(HWND hwnd, UINT uMsg, | |
| 91 WPARAM wParam, LPARAM lParam) { | |
| 92 Win32Window* that = reinterpret_cast<Win32Window*>( | |
| 93 ::GetWindowLongPtr(hwnd, GWLP_USERDATA)); | |
| 94 if (!that && (WM_CREATE == uMsg)) { | |
| 95 CREATESTRUCT* cs = reinterpret_cast<CREATESTRUCT*>(lParam); | |
| 96 that = static_cast<Win32Window*>(cs->lpCreateParams); | |
| 97 that->wnd_ = hwnd; | |
| 98 ::SetWindowLongPtr(hwnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(that)); | |
| 99 } | |
| 100 if (that) { | |
| 101 LRESULT result; | |
| 102 bool handled = that->OnMessage(uMsg, wParam, lParam, result); | |
| 103 if (WM_DESTROY == uMsg) { | |
| 104 for (HWND child = ::GetWindow(hwnd, GW_CHILD); child; | |
| 105 child = ::GetWindow(child, GW_HWNDNEXT)) { | |
| 106 LOG(LS_INFO) << "Child window: " << static_cast<void*>(child); | |
| 107 } | |
| 108 } | |
| 109 if (WM_NCDESTROY == uMsg) { | |
| 110 ::SetWindowLongPtr(hwnd, GWLP_USERDATA, NULL); | |
| 111 that->wnd_ = nullptr; | |
| 112 that->OnNcDestroy(); | |
| 113 } | |
| 114 if (handled) { | |
| 115 return result; | |
| 116 } | |
| 117 } | |
| 118 return ::DefWindowProc(hwnd, uMsg, wParam, lParam); | |
| 119 } | |
| 120 | |
| 121 } // namespace rtc | |
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Chromium Code Reviews
Issue 2877023002:
Move webrtc/{base => rtc_base} (Closed)
