/*

Miranda NG: the free IM client for Microsoft* Windows*

Copyright (c) 2012-18 Miranda NG team (https://miranda-ng.org),
Copyright (c) 2000-03 Miranda ICQ/IM project,
all portions of this codebase are copyrighted to the people
listed in contributors.txt.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#include "stdafx.h"
#include "cluiframes.h"

static POINT ptMouse = { 0 };
static RECT rcMouse = { 0 };
static int timer_set = 0, tooltip_active = 0;
extern HANDLE hStatusBarShowToolTipEvent, hStatusBarHideToolTipEvent;
extern HBRUSH g_CLUISkinnedBkColor;

#define TIMERID_HOVER 1000

LRESULT CALLBACK NewStatusBarWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	POINT pt;

	switch (msg) {
	case WM_SETCURSOR:
		GetCursorPos(&pt);

		SendMessage(GetParent(hwnd), msg, wParam, lParam);
		if (pt.x == ptMouse.x && pt.y == ptMouse.y)
			return 1;

		ptMouse = pt;
		if (tooltip_active) {
			KillTimer(hwnd, TIMERID_HOVER);
			if (!NotifyEventHooks(hStatusBarHideToolTipEvent, 0, 0))
				CallService("mToolTip/HideTip", 0, 0);
			tooltip_active = FALSE;
		}
		KillTimer(hwnd, TIMERID_HOVER);
		SetTimer(hwnd, TIMERID_HOVER, 750, nullptr);
		break;

	case WM_NCHITTEST:
		{
			LRESULT lr = SendMessage(GetParent(hwnd), WM_NCHITTEST, wParam, lParam);
			if (lr == HTLEFT || lr == HTRIGHT || lr == HTBOTTOM || lr == HTTOP || lr == HTTOPLEFT || lr == HTTOPRIGHT
				|| lr == HTBOTTOMLEFT || lr == HTBOTTOMRIGHT)
				return HTTRANSPARENT;
		}
		break;

	case WM_ERASEBKGND:
		if (cfg::dat.bSkinnedStatusBar)
			return 1;
		return mir_callNextSubclass(hwnd, NewStatusBarWndProc, msg, wParam, lParam);

	case WM_LBUTTONDOWN:
	case WM_RBUTTONDOWN:
		KillTimer(hwnd, TIMERID_HOVER);
		if (!NotifyEventHooks(hStatusBarHideToolTipEvent, 0, 0))
			CallService("mToolTip/HideTip", 0, 0);
		tooltip_active = FALSE;
		break;

	case WM_PAINT:
		if (cfg::shutDown || arStatusItems.getCount() == 0)
			return 0;

		if (cfg::dat.bSkinnedStatusBar) {
			PAINTSTRUCT ps;
			HDC hdc = BeginPaint(hwnd, &ps);
			HDC hdcMem = CreateCompatibleDC(hdc);
			RECT rcClient, rcWindow;
			BYTE windowStyle = db_get_b(NULL, "CLUI", "WindowStyle", SETTING_WINDOWSTYLE_DEFAULT);
			LONG b_offset = cfg::dat.bClipBorder + (windowStyle == SETTING_WINDOWSTYLE_NOBORDER ? 2 : (windowStyle == SETTING_WINDOWSTYLE_THINBORDER ? 1 : 0));

			GetClientRect(hwnd, &rcClient);
			GetWindowRect(hwnd, &rcWindow);
			pt.x = rcWindow.left;
			pt.y = rcWindow.top;
			ScreenToClient(pcli->hwndContactList, &pt);

			HBITMAP hbmMem = CreateCompatibleBitmap(hdc, rcClient.right, rcClient.bottom);
			HBITMAP hbmOld = reinterpret_cast<HBITMAP>(SelectObject(hdcMem, hbmMem));
			SetBkMode(hdcMem, TRANSPARENT);
			HFONT hOldFont = reinterpret_cast<HFONT>(SelectObject(hdcMem, GetStockObject(DEFAULT_GUI_FONT)));
			BitBlt(hdcMem, 0, 0, rcClient.right, rcClient.bottom, cfg::dat.hdcBg, pt.x, pt.y, SRCCOPY);
			StatusItems_t *item = arStatusItems[ID_EXTBKSTATUSBAR - ID_STATUS_OFFLINE];
			if (!item->IGNORED) {
				RECT rc = rcClient;
				rc.left += item->MARGIN_LEFT;
				rc.right -= item->MARGIN_RIGHT;
				rc.top += item->MARGIN_TOP;
				rc.bottom -= item->MARGIN_BOTTOM;
				DrawAlpha(hdcMem, &rc, item->COLOR, item->ALPHA, item->COLOR2, item->COLOR2_TRANSPARENT, item->GRADIENT,
					item->CORNER, item->BORDERSTYLE, item->imageItem);
				SetTextColor(hdcMem, item->TEXTCOLOR);
			}
			else SetTextColor(hdcMem, GetSysColor(COLOR_BTNTEXT));

			DRAWITEMSTRUCT dis = { 0 };
			dis.hwndItem = hwnd;
			dis.hDC = hdcMem;
			dis.CtlType = 0;
			int nParts = SendMessage(hwnd, SB_GETPARTS, 0, 0);
			for (int i = 0; i < nParts; i++) {
				SendMessage(hwnd, SB_GETRECT, i, (LPARAM)&dis.rcItem);
				OffsetRect(&dis.rcItem, 0, -b_offset);
				dis.itemData = SendMessage(hwnd, SB_GETTEXTA, i, 0);
				SendMessage(pcli->hwndContactList, WM_DRAWITEM, 0, (LPARAM)&dis);
			}
			BitBlt(hdc, 0, 0, rcClient.right, rcClient.bottom, hdcMem, 0, 0, SRCCOPY);
			if (hOldFont)
				SelectObject(hdcMem, hOldFont);
			SelectObject(hdcMem, hbmOld);
			DeleteObject(hbmMem);
			DeleteDC(hdcMem);
			EndPaint(hwnd, &ps);
			return 0;
		}
		break;

	case WM_TIMER:
		if (wParam == TIMERID_HOVER) {
			KillTimer(hwnd, TIMERID_HOVER);

			GetCursorPos(&pt);
			if (pt.x == ptMouse.x && pt.y == ptMouse.y) {
				ScreenToClient(hwnd, &pt);
				int nParts = SendMessage(hwnd, SB_GETPARTS, 0, 0);
				for (int i = 0; i < nParts; i++) {
					RECT rc;
					SendMessage(hwnd, SB_GETRECT, i, (LPARAM)&rc);
					if (PtInRect(&rc, pt)) {
						ProtocolData *PD = (ProtocolData *)SendMessageA(hwnd, SB_GETTEXTA, i, 0);
						if (PD == nullptr)
							continue;

						if (NotifyEventHooks(hStatusBarShowToolTipEvent, (WPARAM)PD->RealName, 0) > 0) // a plugin handled this event
							tooltip_active = TRUE;
						else if (db_get_dw(NULL, "mToolTip", "ShowStatusTip", 0)) {
							int wStatus = Proto_GetStatus(PD->RealName);
							BYTE isLocked = db_get_b(NULL, PD->RealName, "LockMainStatus", 0);

							wchar_t szTipText[256];
							mir_snwprintf(szTipText, L"<b>%s</b>: %s%s", PD->RealName, Clist_GetStatusModeDescription(wStatus, 0), isLocked ? L"  (LOCKED)" : L"");

							CLCINFOTIP ti = { sizeof(ti) };
							ti.isTreeFocused = (GetFocus() == pcli->hwndContactList);
							CallService("mToolTip/ShowTipW", (WPARAM)szTipText, (LPARAM)&ti);
						}
						break;
					}
				}
			}
		}
		break;
	}

	return mir_callNextSubclass(hwnd, NewStatusBarWndProc, msg, wParam, lParam);
}