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path: root/plugins/YAPP/src/message_pump.cpp
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#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

unsigned __stdcall MessagePumpThread(void* param)
{
	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 && IsFullScreen()) || IsWorkstationLocked())
						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:
				BroadcastMessage(PUM_UPDATENOTIFY, hwndMsg.wParam, 0);
				break;

			case MUM_NMREMOVE:
				BroadcastMessage(PUM_KILLNOTIFY, hwndMsg.wParam, 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 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);
}