/*
Scriver

Copyright 2000-2012 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 "commonheaders.h"

extern HINSTANCE g_hInst;
extern HANDLE hHookWinPopup;

enum KB_ACTIONS {KB_PREV_TAB = 1, KB_NEXT_TAB, KB_SWITCHTOOLBAR,
				 KB_SWITCHSTATUSBAR, KB_SWITCHTITLEBAR, KB_SWITCHINFOBAR, KB_MINIMIZE, KB_CLOSE, KB_CLEAR_LOG,
				 KB_TAB1, KB_TAB2, KB_TAB3, KB_TAB4, KB_TAB5, KB_TAB6, KB_TAB7, KB_TAB8, KB_TAB9, KB_SEND_ALL, KB_PASTESEND, KB_QUOTE};

void InputAreaContextMenu(HWND hwnd, WPARAM wParam, LPARAM lParam, HANDLE hContact) {

	HMENU hMenu, hSubMenu;
	POINT pt;
	CHARRANGE sel, all = { 0, -1 };
	MessageWindowPopupData mwpd;
	int selection;

	hMenu = LoadMenu(g_hInst, MAKEINTRESOURCE(IDR_CONTEXT));
	hSubMenu = GetSubMenu(hMenu, 2);
	CallService(MS_LANGPACK_TRANSLATEMENU, (WPARAM) hSubMenu, 0);
	SendMessage(hwnd, EM_EXGETSEL, 0, (LPARAM) & sel);
	if (sel.cpMin == sel.cpMax) {
		EnableMenuItem(hSubMenu, IDM_CUT, MF_BYCOMMAND | MF_GRAYED);
		EnableMenuItem(hSubMenu, IDM_COPY, MF_BYCOMMAND | MF_GRAYED);
		EnableMenuItem(hSubMenu, IDM_DELETE, MF_BYCOMMAND | MF_GRAYED);
	}
	if (!SendMessage(hwnd, EM_CANUNDO, 0, 0)) {
		EnableMenuItem(hSubMenu, IDM_UNDO, MF_BYCOMMAND | MF_GRAYED);
	}
	if (!SendMessage(hwnd, EM_CANREDO, 0, 0)) {
		EnableMenuItem(hSubMenu, IDM_REDO, MF_BYCOMMAND | MF_GRAYED);
	}
	if (!SendMessage(hwnd, EM_CANPASTE, 0, 0)) {
		EnableMenuItem(hSubMenu, IDM_PASTESEND, MF_BYCOMMAND | MF_GRAYED);
		if (!IsClipboardFormatAvailable(CF_HDROP))
			EnableMenuItem(hSubMenu, IDM_PASTE, MF_BYCOMMAND | MF_GRAYED);
	}
	if (lParam == 0xFFFFFFFF) {
		SendMessage(hwnd, EM_POSFROMCHAR, (WPARAM) & pt, (LPARAM) sel.cpMax);
		ClientToScreen(hwnd, &pt);
	}
	else {
		pt.x = (short) LOWORD(lParam);
		pt.y = (short) HIWORD(lParam);
	}

	// First notification
	mwpd.cbSize = sizeof(mwpd);
	mwpd.uType = MSG_WINDOWPOPUP_SHOWING;
	mwpd.uFlags = MSG_WINDOWPOPUP_INPUT;
	mwpd.hContact = hContact;
	mwpd.hwnd = hwnd;
	mwpd.hMenu = hSubMenu;
	mwpd.selection = 0;
	mwpd.pt = pt;
	NotifyEventHooks(hHookWinPopup, 0, (LPARAM)&mwpd);

	selection = TrackPopupMenu(hSubMenu, TPM_RETURNCMD, pt.x, pt.y, 0, GetParent(hwnd), NULL);

	// Second notification
	mwpd.selection = selection;
	mwpd.uType = MSG_WINDOWPOPUP_SELECTED;
	NotifyEventHooks(hHookWinPopup, 0, (LPARAM)&mwpd);

	switch (selection) {
	case IDM_UNDO:
		SendMessage(hwnd, WM_UNDO, 0, 0);
		break;
	case IDM_REDO:
		SendMessage(hwnd, EM_REDO, 0, 0);
		break;
	case IDM_CUT:
		SendMessage(hwnd, WM_CUT, 0, 0);
		break;
	case IDM_COPY:
		SendMessage(hwnd, WM_COPY, 0, 0);
		break;
	case IDM_PASTE:
		SendMessage(hwnd, WM_PASTE, 0, 0);
		break;
	case IDM_PASTESEND:
		SendMessage(hwnd, EM_PASTESPECIAL, CF_TEXT, 0);
		PostMessage(GetParent(hwnd), WM_COMMAND, IDOK, 0);
		break;
	case IDM_DELETE:
		SendMessage(hwnd, EM_REPLACESEL, TRUE, 0);
		break;
	case IDM_SELECTALL:
		SendMessage(hwnd, EM_EXSETSEL, 0, (LPARAM) & all);
		break;
	case IDM_CLEAR:
		SetWindowText(hwnd, _T( "" ));
		break;
	}
	DestroyMenu(hMenu);
	//PostMessage(hwnd, WM_KEYUP, 0, 0 );
}

int InputAreaShortcuts(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, CommonWindowData *windowData) {

	BOOL isShift = GetKeyState(VK_SHIFT) & 0x8000;
	BOOL isAlt = GetKeyState(VK_MENU) & 0x8000;
	BOOL isCtrl = (GetKeyState(VK_CONTROL) & 0x8000) && !isAlt;

	int action;
	MSG amsg;
	amsg.hwnd = hwnd;
	amsg.message = msg;
	amsg.wParam = wParam;
	amsg.lParam = lParam;
	switch (action = CallService(MS_HOTKEY_CHECK, (WPARAM)&amsg, (LPARAM)"Messaging"))
	{
		case KB_PREV_TAB:
			SendMessage(GetParent(GetParent(hwnd)), CM_ACTIVATEPREV, 0, (LPARAM)GetParent(hwnd));
			return FALSE;
		case KB_NEXT_TAB:
			SendMessage(GetParent(GetParent(hwnd)), CM_ACTIVATENEXT, 0, (LPARAM)GetParent(hwnd));
			return FALSE;
		case KB_SWITCHSTATUSBAR:
			SendMessage(GetParent(GetParent(hwnd)), DM_SWITCHSTATUSBAR, 0, 0);
			return FALSE;
		case KB_SWITCHTITLEBAR:
			SendMessage(GetParent(GetParent(hwnd)), DM_SWITCHTITLEBAR, 0, 0);
			return FALSE;
		case KB_SWITCHINFOBAR:
			SendMessage(GetParent(GetParent(hwnd)), DM_SWITCHINFOBAR, 0, 0);
			return FALSE;
		case KB_SWITCHTOOLBAR:
			SendMessage(GetParent(GetParent(hwnd)), DM_SWITCHTOOLBAR, 0, 0);
			return FALSE;
		case KB_MINIMIZE:
			ShowWindow(GetParent(GetParent(hwnd)), SW_MINIMIZE);
			return FALSE;
		case KB_CLOSE:
			SendMessage(GetParent(hwnd), WM_CLOSE, 0, 0);
			return FALSE;
		case KB_CLEAR_LOG:
			SendMessage(GetParent(hwnd), DM_CLEARLOG, 0, 0);
			return FALSE;
		case KB_TAB1:
		case KB_TAB2:
		case KB_TAB3:
		case KB_TAB4:
		case KB_TAB5:
		case KB_TAB6:
		case KB_TAB7:
		case KB_TAB8:
		case KB_TAB9:
			SendMessage(GetParent(GetParent(hwnd)), CM_ACTIVATEBYINDEX, 0, action - KB_TAB1);
			return FALSE;
		case KB_SEND_ALL:
			PostMessage(GetParent(hwnd), WM_COMMAND, IDC_SENDALL, 0);
			return FALSE;
		case KB_QUOTE:
			PostMessage(GetParent(hwnd), WM_COMMAND, IDC_QUOTE, 0);
			return FALSE;
		case KB_PASTESEND:
			if (SendMessage(hwnd, EM_CANPASTE, 0, 0)) {
				SendMessage(hwnd, EM_PASTESPECIAL, CF_TEXT, 0);
				PostMessage(GetParent(hwnd), WM_COMMAND, IDOK, 0);
			}
			return FALSE;
	}

	switch (msg) {
		case WM_KEYDOWN:
		{
			if (wParam >= '1' && wParam <='9' && isCtrl) {
				SendMessage(GetParent(GetParent(hwnd)), CM_ACTIVATEBYINDEX, 0, wParam - '1');
				return 0;
			}
			/*
			if (wParam == 'A' && isCtrl) { //ctrl-a; select all
				SendMessage(hwnd, EM_SETSEL, 0, -1);
				return FALSE;
			}
			*/
			if (wParam == 'I' && isCtrl) { // ctrl-i (italics)
				return FALSE;
			}
			if (wParam == VK_SPACE && isCtrl) // ctrl-space (paste clean text)
				return FALSE;
			if (wParam == 'R' && isCtrl && isShift) {     // ctrl-shift-r
				SendMessage(GetParent(hwnd), DM_SWITCHRTL, 0, 0);
				return FALSE;
			}
			if ((wParam == VK_UP || wParam == VK_DOWN) && isCtrl && !DBGetContactSettingByte(NULL, SRMMMOD, SRMSGSET_AUTOCLOSE, SRMSGDEFSET_AUTOCLOSE)) {
				if (windowData->cmdList) {
					TCmdList *cmdListNew = NULL;
					if (wParam == VK_UP) {
						if (windowData->cmdListCurrent == NULL) {
							cmdListNew = tcmdlist_last(windowData->cmdList);
							while (cmdListNew != NULL && cmdListNew->temporary) {
								windowData->cmdList = tcmdlist_remove(windowData->cmdList, cmdListNew);
								cmdListNew = tcmdlist_last(windowData->cmdList);
							}
							if (cmdListNew != NULL) {
								char *textBuffer;
								if (windowData->flags & CWDF_RTF_INPUT) {
									 textBuffer = GetRichTextRTF(hwnd);
								} else {
									 textBuffer = GetRichTextEncoded(hwnd, windowData->codePage);
								}
								if (textBuffer != NULL) {
									windowData->cmdList = tcmdlist_append(windowData->cmdList, textBuffer, 20, TRUE);
									mir_free(textBuffer);
								}
							}
						} else if (windowData->cmdListCurrent->prev != NULL) {
							cmdListNew = windowData->cmdListCurrent->prev;
						}
					} else {
						if (windowData->cmdListCurrent != NULL) {
							if (windowData->cmdListCurrent->next != NULL) {
								cmdListNew = windowData->cmdListCurrent->next;
							} else if (!windowData->cmdListCurrent->temporary) {
								SetWindowText(hwnd, _T(""));
							}
						}
					}
					if (cmdListNew != NULL) {
						int iLen;
						SendMessage(hwnd, WM_SETREDRAW, FALSE, 0);
						if (windowData->flags & CWDF_RTF_INPUT) {
							iLen = SetRichTextRTF(hwnd, cmdListNew->szCmd);
						} else {
							iLen = SetRichTextEncoded(hwnd, cmdListNew->szCmd, windowData->codePage);
						}
						SendMessage(hwnd, EM_SCROLLCARET, 0,0);
						SendMessage(hwnd, WM_SETREDRAW, TRUE, 0);
						RedrawWindow(hwnd, NULL, NULL, RDW_INVALIDATE);
						SendMessage(hwnd, EM_SETSEL, iLen, iLen);
						windowData->cmdListCurrent = cmdListNew;
					}
				}
				return FALSE;
			}
		}
		break;
		case WM_SYSKEYDOWN:
		{
			if ((wParam == VK_LEFT) && isAlt) {
				SendMessage(GetParent(GetParent(hwnd)), CM_ACTIVATEPREV, 0, (LPARAM)GetParent(hwnd));
				return 0;
			}
			if ((wParam == VK_RIGHT) && isAlt) {
				SendMessage(GetParent(GetParent(hwnd)), CM_ACTIVATENEXT, 0, (LPARAM)GetParent(hwnd));
				return 0;
			}
		}
		break;
		case WM_SYSKEYUP:
		{
			if ((wParam == VK_LEFT) && isAlt) {
				return 0;
			}
			if ((wParam == VK_RIGHT) && isAlt) {
				return 0;
			}
		}
		break;

	}

	return -1;

}

void RegisterKeyBindings() {
	int i;
	char strDesc[64], strName[64];
	HOTKEYDESC desc;
	ZeroMemory(&desc, sizeof(desc));
	desc.cbSize = sizeof(desc);
	desc.pszSection = "Messaging";
	desc.pszName = "Scriver/Nav/Previous Tab";
	desc.pszDescription = "Navigate: Previous Tab";
	desc.lParam = KB_PREV_TAB;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL|HOTKEYF_SHIFT, VK_TAB);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL, VK_PRIOR);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_ALT, VK_LEFT);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Nav/Next Tab";
	desc.pszDescription = "Navigate: Next Tab";
	desc.lParam = KB_NEXT_TAB;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL, VK_TAB);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL, VK_NEXT);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_ALT, VK_RIGHT);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);
	desc.pszName = strName;
	desc.pszDescription = strDesc;
	for (i = 0; i < 9; i++) {
		mir_snprintf(strName, SIZEOF(strName), "Scriver/Nav/Tab %d", i + 1);
		mir_snprintf(strDesc, SIZEOF(strDesc), "Navigate: Tab %d", i + 1);
		desc.lParam = KB_TAB1 + i;
		desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL, '1' + i);
		CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);
	}

	desc.pszName = "Scriver/Wnd/Toggle Statusbar";
	desc.pszDescription = "Window: Toggle Statusbar";
	desc.lParam = KB_SWITCHSTATUSBAR;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL|HOTKEYF_SHIFT, 'S');
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Wnd/Toggle Titlebar";
	desc.pszDescription = "Window: Toggle Titlebar";
	desc.lParam = KB_SWITCHTITLEBAR;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL|HOTKEYF_SHIFT, 'M');
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Wnd/Toggle Toolbar";
	desc.pszDescription = "Window: Toggle Toolbar";
	desc.lParam = KB_SWITCHTOOLBAR;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL|HOTKEYF_SHIFT, 'T');
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Wnd/Toggle Infobar";
	desc.pszDescription = "Window: Toggle Infobar";
	desc.lParam = KB_SWITCHINFOBAR;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL|HOTKEYF_SHIFT, 'N');
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Wnd/Clear Log";
	desc.pszDescription = "Window: Clear Log";
	desc.lParam = KB_CLEAR_LOG;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL, 'L');
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Wnd/Minimize";
	desc.pszDescription = "Window: Minimize";
	desc.lParam = KB_MINIMIZE;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_SHIFT, VK_ESCAPE);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Wnd/Close Tab";
	desc.pszDescription = "Window: Close Tab";
	desc.lParam = KB_CLOSE;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL, VK_F4);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL, 'W');
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Action/Quote";
	desc.pszDescription = "Action: Quote";
	desc.lParam = KB_QUOTE;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL, 'Q');
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Action/Send All";
	desc.pszDescription = "Action: Send to All";
	desc.lParam = KB_SEND_ALL;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL | HOTKEYF_SHIFT, VK_RETURN);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);

	desc.pszName = "Scriver/Action/PasteSend";
	desc.pszDescription = "Action: Paste & Send";
	desc.lParam = KB_PASTESEND;
	desc.DefHotKey = HOTKEYCODE(HOTKEYF_CONTROL | HOTKEYF_SHIFT, VK_INSERT);
	CallService(MS_HOTKEY_REGISTER, 0, (LPARAM) &desc);
}

BOOL HandleLinkClick(HINSTANCE hInstance, HWND hwndDlg, HWND hwndFocus, ENLINK *lParam) {
	TEXTRANGE tr;
	CHARRANGE sel;
	char* pszUrl;
	BOOL bOpenLink = TRUE;
	SendMessage(lParam->nmhdr.hwndFrom, EM_EXGETSEL, 0, (LPARAM) & sel);
	if (sel.cpMin != sel.cpMax)
		return FALSE;
	tr.chrg = lParam->chrg;
	tr.lpstrText = mir_alloc(sizeof(TCHAR)*(tr.chrg.cpMax - tr.chrg.cpMin + 8));
	SendMessage(lParam->nmhdr.hwndFrom, EM_GETTEXTRANGE, 0, (LPARAM) & tr);
	if (_tcschr(tr.lpstrText, _T('@')) != NULL && _tcschr(tr.lpstrText, _T(':')) == NULL && _tcschr(tr.lpstrText, _T('/')) == NULL) {
		MoveMemory(tr.lpstrText + sizeof(TCHAR) * 7, tr.lpstrText, sizeof(TCHAR)*(tr.chrg.cpMax - tr.chrg.cpMin + 1));
		CopyMemory(tr.lpstrText, _T("mailto:"), sizeof(TCHAR) * 7);
	}
	pszUrl = t2a( (const TCHAR *)tr.lpstrText );
	if (((ENLINK *) lParam)->msg == WM_RBUTTONDOWN) {
		HMENU hMenu, hSubMenu;
		POINT pt;
		bOpenLink = FALSE;
		hMenu = LoadMenu(hInstance, MAKEINTRESOURCE(IDR_CONTEXT));
		hSubMenu = GetSubMenu(hMenu, 1);
		CallService(MS_LANGPACK_TRANSLATEMENU, (WPARAM) hSubMenu, 0);
		pt.x = (short) LOWORD(((ENLINK *) lParam)->lParam);
		pt.y = (short) HIWORD(((ENLINK *) lParam)->lParam);
		ClientToScreen(((NMHDR *) lParam)->hwndFrom, &pt);
		switch (TrackPopupMenu(hSubMenu, TPM_RETURNCMD, pt.x, pt.y, 0, hwndDlg, NULL)) {
		case IDM_OPENLINK:
			bOpenLink = TRUE;
			break;
		case IDM_COPYLINK:
			{
				HGLOBAL hData;
				if (!OpenClipboard(hwndDlg))
					break;
				EmptyClipboard();
				hData = GlobalAlloc(GMEM_MOVEABLE, sizeof(TCHAR)*(lstrlen(tr.lpstrText) + 1));
				lstrcpy(GlobalLock(hData), tr.lpstrText);
				GlobalUnlock(hData);
			#if defined( _UNICODE )
				SetClipboardData(CF_UNICODETEXT, hData);
			#else
				SetClipboardData(CF_TEXT, hData);
			 #endif
				CloseClipboard();
				break;
			}
		}
		DestroyMenu(hMenu);
	}
	if (bOpenLink) {
		CallService(MS_UTILS_OPENURL, 1, (LPARAM) pszUrl);
	}
	SetFocus(hwndFocus);
	mir_free(tr.lpstrText);
	mir_free(pszUrl);
	return TRUE;
}