1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/base/win32window.h"
#include "talk/base/logging.h"
#include "talk/base/common.h"
namespace talk_base {
///////////////////////////////////////////////////////////////////////////////
// Win32Window
///////////////////////////////////////////////////////////////////////////////
static const wchar_t kWindowBaseClassName[] = L"WindowBaseClass";
HINSTANCE instance_ = GetModuleHandle(NULL);
ATOM window_class_ = 0;
Win32Window::Win32Window() : wnd_(NULL) {
}
Win32Window::~Win32Window() {
ASSERT(NULL == wnd_);
}
bool Win32Window::Create(HWND parent, const wchar_t* title, DWORD style,
DWORD exstyle, int x, int y, int cx, int cy) {
if (wnd_) {
// Window already exists.
return false;
}
if (!window_class_) {
// Class not registered, register it.
WNDCLASSEX wcex;
memset(&wcex, 0, sizeof(wcex));
wcex.cbSize = sizeof(wcex);
wcex.hInstance = instance_;
wcex.lpfnWndProc = &Win32Window::WndProc;
wcex.lpszClassName = kWindowBaseClassName;
window_class_ = ::RegisterClassEx(&wcex);
if (!window_class_) {
LOG(LS_ERROR) << "RegisterClassEx failed: " << GetLastError();
return false;
}
}
wnd_ = ::CreateWindowEx(exstyle, kWindowBaseClassName, title, style,
x, y, cx, cy, parent, NULL, instance_, this);
return (NULL != wnd_);
}
void Win32Window::Destroy() {
VERIFY(::DestroyWindow(wnd_) != FALSE);
}
#if 0
void Win32Window::SetInstance(HINSTANCE instance) {
instance_ = instance;
}
void Win32Window::Shutdown() {
if (window_class_) {
::UnregisterClass(MAKEINTATOM(window_class_), instance_);
window_class_ = 0;
}
}
#endif
bool Win32Window::OnMessage(UINT uMsg, WPARAM wParam, LPARAM lParam,
LRESULT& result) {
switch (uMsg) {
case WM_CLOSE:
if (!OnClose()) {
result = 0;
return true;
}
break;
}
return false;
}
LRESULT Win32Window::WndProc(HWND hwnd, UINT uMsg,
WPARAM wParam, LPARAM lParam) {
Win32Window* that = reinterpret_cast<Win32Window*>(
::GetWindowLongPtr(hwnd, GWL_USERDATA));
if (!that && (WM_CREATE == uMsg)) {
CREATESTRUCT* cs = reinterpret_cast<CREATESTRUCT*>(lParam);
that = static_cast<Win32Window*>(cs->lpCreateParams);
that->wnd_ = hwnd;
::SetWindowLongPtr(hwnd, GWL_USERDATA, reinterpret_cast<LONG_PTR>(that));
}
if (that) {
LRESULT result;
bool handled = that->OnMessage(uMsg, wParam, lParam, result);
if (WM_DESTROY == uMsg) {
for (HWND child = ::GetWindow(hwnd, GW_CHILD); child;
child = ::GetWindow(child, GW_HWNDNEXT)) {
LOG(LS_INFO) << "Child window: " << static_cast<void*>(child);
}
}
if (WM_NCDESTROY == uMsg) {
::SetWindowLongPtr(hwnd, GWL_USERDATA, NULL);
that->wnd_ = NULL;
that->OnDestroyed();
}
if (handled) {
return result;
}
}
return ::DefWindowProc(hwnd, uMsg, wParam, lParam);
}
} // namespace talk_base
|
