summaryrefslogtreecommitdiff
path: root/plugins/YAPP/src/message_pump.cpp
blob: a54c2cbba96d8f5a0a8bc44b5def160a687a09ec (plain)
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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
#include "common.h"

unsigned message_pump_thread_id = 0;
int num_popups = 0;

HANDLE hMPEvent;

#define MUM_FINDWINDOW		(WM_USER + 0x050)

#define MAX_POPUPS	100

// from popups, popup2 implementation, slightly modified
// return true if there is a full-screen application (e.g. game) running
bool is_full_screen() {
	int w = GetSystemMetrics(SM_CXSCREEN);
	int h = GetSystemMetrics(SM_CYSCREEN);
	// use ClientRect instead of WindowRect so that it works normally for maximized applications - thx Nikto
	RECT ClientRect;
	HWND hWnd;

	HWND hWndDesktop = GetDesktopWindow();
	HWND hWndShell = GetShellWindow();

	// check foregroundwindow
	hWnd = GetForegroundWindow();
	if (hWnd && hWnd != hWndDesktop && hWnd != hWndShell) {
		GetClientRect(hWnd, &ClientRect);
		if ((ClientRect.right - ClientRect.left) >= w && (ClientRect.bottom - ClientRect.top) >= h)
			return true;
	}
	
	// check other top level windows
	while ((hWnd = FindWindowEx(NULL, hWnd, NULL, NULL))) {
		if (IsWindowVisible(hWnd) == 0 || IsIconic(hWnd) || hWnd == hWndDesktop || hWnd == hWndShell)
			continue;
			
//		if (db_get_b(0, MODULE, "ShowForNonTopmostFullscreenWindows", 0) == 1) {
			if (!(GetWindowLongPtr(hWnd, GWL_EXSTYLE) & WS_EX_TOPMOST))
				continue;
//		}

		// not sure if this could be done more simply using 'IsZoomed'?
		GetClientRect(hWnd, &ClientRect);
		if ((ClientRect.right - ClientRect.left) < w || (ClientRect.bottom - ClientRect.top) < h)
			continue;

		return true;
	}

	return false;
}

bool is_workstation_locked()
{
	bool rc = false;
	HDESK hDesk = OpenDesktop((TCHAR*)_T("default"), 0, FALSE, DESKTOP_SWITCHDESKTOP);
	if (hDesk != 0) {
		HDESK hDeskInput = OpenInputDesktop(0, FALSE, DESKTOP_SWITCHDESKTOP);
		if (hDeskInput == 0) {
			rc = true;
		} else
			CloseDesktop(hDeskInput);

		CloseDesktop(hDesk);
	} 

	return rc;
}

unsigned __stdcall MessagePumpThread(void* param)
{
	InitWindowStack();

	if (param) SetEvent((HANDLE)param);

	MSG hwndMsg = {0};
	while(GetMessage(&hwndMsg, 0, 0, 0) > 0 && !Miranda_Terminated()) {
		if (!IsDialogMessage(hwndMsg.hwnd, &hwndMsg)) {
			switch(hwndMsg.message) {
			case MUM_CREATEPOPUP:
				{
					bool enabled = true;
					int status = CallService(MS_CLIST_GETSTATUSMODE, 0, 0);
					if (status >= ID_STATUS_OFFLINE && status <= ID_STATUS_OUTTOLUNCH && options.disable_status[status - ID_STATUS_OFFLINE])
						enabled = false;
					if ((options.disable_full_screen && is_full_screen()) || is_workstation_locked())
						enabled = false;

					PopupData *pd = (PopupData *)hwndMsg.lParam;
					if (enabled && num_popups < MAX_POPUPS) {
						//HWND hwnd = CreateWindowEx(WS_EX_TOOLWINDOW | WS_EX_TOPMOST, POP_WIN_CLASS, _T("Popup"), WS_POPUP, 0, 0, 0, 0, GetDesktopWindow(), 0, hInst, (LPVOID)hwndMsg.lParam);
						HWND hwnd = CreateWindowEx(WS_EX_TOOLWINDOW | WS_EX_TOPMOST, POP_WIN_CLASS, _T("Popup"), WS_POPUP, 0, 0, 0, 0, 0, 0, hInst, (LPVOID)hwndMsg.lParam);
						num_popups++;
						if (hwndMsg.wParam) // set notifyer handle
							SendMessage(hwnd, PUM_SETNOTIFYH, hwndMsg.wParam, 0);
					} else {
						if (pd) {
							mir_free(pd->pwzTitle);
							mir_free(pd->pwzText);
							mir_free(pd);
						}
					}
				}
				break;

			case MUM_DELETEPOPUP:
				{
					HWND hwnd = (HWND)hwndMsg.lParam;
					if (IsWindow(hwnd)) {
						DestroyWindow(hwnd);
						num_popups--;
					}
				}
				break;

			case MUM_NMUPDATE:
				{
					HANDLE hNotify = (HANDLE)hwndMsg.wParam;
					BroadcastMessage(PUM_UPDATENOTIFY, (WPARAM)hNotify, 0);
				}
				break;

			case MUM_NMREMOVE:
				{
					HANDLE hNotify = (HANDLE)hwndMsg.wParam;
					BroadcastMessage(PUM_KILLNOTIFY, (WPARAM)hNotify, 0);
				}
				break;

			case MUM_NMAVATAR:
				RepositionWindows();
				break;

			default:
				TranslateMessage(&hwndMsg);
				DispatchMessage(&hwndMsg);
				break;
			}
		}
	}

	DeinitWindowStack();
	num_popups = 0;

	DeinitServices();
	return 0;
}

void PostMPMessage(UINT msg, WPARAM wParam, LPARAM lParam)
{
	PostThreadMessage(message_pump_thread_id, msg, wParam, lParam);
}

// given a popup data pointer, and a handle to an event, this function
// will post a message to the message queue which will set the hwnd value
// and then set the event...so create an event, call this function and then wait on the event
// when the event is signalled, the hwnd will be valid
void FindWindow(PopupData *pd, HANDLE hEvent, HWND *hwnd);

void InitMessagePump()
{
	WNDCLASS popup_win_class = {0};
	popup_win_class.lpfnWndProc = PopupWindowProc;
	popup_win_class.hInstance = hInst;
	popup_win_class.lpszClassName = POP_WIN_CLASS;
	popup_win_class.hCursor = LoadCursor(NULL, IDC_ARROW); 
	RegisterClass(&popup_win_class);

	InitServices();

	hMPEvent = CreateEvent(0, TRUE, 0, 0);
	CloseHandle(mir_forkthreadex(MessagePumpThread, hMPEvent, &message_pump_thread_id));
	WaitForSingleObject(hMPEvent, INFINITE);
	CloseHandle(hMPEvent);
}

void DeinitMessagePump() {
	PostMPMessage(WM_QUIT, 0, 0);
}