window.c

putty

	return cfg.mouse_is_xterm == 1 ? MBT_PASTE : MBT_EXTEND;
    if (button == MBT_RIGHT)
	return cfg.mouse_is_xterm == 1 ? MBT_EXTEND : MBT_PASTE;
    return 0;			       /* shouldn't happen */
}

static void show_mouseptr(int show)
{
    /* NB that the counter in ShowCursor() is also frobbed by
     * update_mouse_pointer() */
    static int cursor_visible = 1;
    if (!cfg.hide_mouseptr)	       /* override if this feature disabled */
	show = 1;
    if (cursor_visible && !show)
	ShowCursor(FALSE);
    else if (!cursor_visible && show)
	ShowCursor(TRUE);
    cursor_visible = show;
}

static int is_alt_pressed(void)
{
    BYTE keystate[256];
    int r = GetKeyboardState(keystate);
    if (!r)
	return FALSE;
    if (keystate[VK_MENU] & 0x80)
	return TRUE;
    if (keystate[VK_RMENU] & 0x80)
	return TRUE;
    return FALSE;
}

static int is_shift_pressed(void)
{
    BYTE keystate[256];
    int r = GetKeyboardState(keystate);
    if (!r)
	return FALSE;
    if (keystate[VK_SHIFT] & 0x80)
	return TRUE;
    return FALSE;
}

static int resizing;

void notify_remote_exit(void *fe)
{
    int exitcode;

    if (!session_closed &&
        (exitcode = back->exitcode(backhandle)) >= 0) {
	/* Abnormal exits will already have set session_closed and taken
	 * appropriate action. */
	if (cfg.close_on_exit == FORCE_ON ||
	    (cfg.close_on_exit == AUTO && exitcode != INT_MAX)) {
	    PostQuitMessage(0);
	} else {
	    must_close_session = TRUE;
	    session_closed = TRUE;
	    /* exitcode == INT_MAX indicates that the connection was closed
	     * by a fatal error, so an error box will be coming our way and
	     * we should not generate this informational one. */
	    if (exitcode != INT_MAX)
		MessageBox(hwnd, "Connection closed by remote host",
			   appname, MB_OK | MB_ICONINFORMATION);
	}
    }
}

void timer_change_notify(long next)
{
    long ticks = next - GETTICKCOUNT();
    if (ticks <= 0) ticks = 1;	       /* just in case */
    KillTimer(hwnd, TIMING_TIMER_ID);
    SetTimer(hwnd, TIMING_TIMER_ID, ticks, NULL);
    timing_next_time = next;
}

static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
				WPARAM wParam, LPARAM lParam)
{
    HDC hdc;
    static int ignore_clip = FALSE;
    static int need_backend_resize = FALSE;
    static int fullscr_on_max = FALSE;
    static UINT last_mousemove = 0;

    switch (message) {
      case WM_TIMER:
	if ((UINT_PTR)wParam == TIMING_TIMER_ID) {
	    long next;

	    KillTimer(hwnd, TIMING_TIMER_ID);
	    if (run_timers(timing_next_time, &next)) {
		timer_change_notify(next);
	    } else {
	    }
	}
	return 0;
      case WM_CREATE:
	break;
      case WM_CLOSE:
	{
	    char *str;
	    show_mouseptr(1);
	    str = dupprintf("%s Exit Confirmation", appname);
	    if (!cfg.warn_on_close || session_closed ||
		MessageBox(hwnd,
			   "Are you sure you want to close this session?",
			   str, MB_ICONWARNING | MB_OKCANCEL | MB_DEFBUTTON1)
		== IDOK)
		DestroyWindow(hwnd);
	    sfree(str);
	}
	return 0;
      case WM_DESTROY:
	show_mouseptr(1);
	PostQuitMessage(0);
	return 0;
      case WM_INITMENUPOPUP:
	if ((HMENU)wParam == savedsess_menu) {
	    /* About to pop up Saved Sessions sub-menu.
	     * Refresh the session list. */
	    get_sesslist(&sesslist, FALSE); /* free */
	    get_sesslist(&sesslist, TRUE);
	    update_savedsess_menu();
	    return 0;
	}
	break;
      case WM_COMMAND:
      case WM_SYSCOMMAND:
	switch (wParam & ~0xF) {       /* low 4 bits reserved to Windows */
	  case IDM_SHOWLOG:
	    showeventlog(hwnd);
	    break;
	  case IDM_NEWSESS:
	  case IDM_DUPSESS:
	  case IDM_SAVEDSESS:
	    {
		char b[2048];
		char c[30], *cl;
		int freecl = FALSE;
		BOOL inherit_handles;
		STARTUPINFO si;
		PROCESS_INFORMATION pi;
		HANDLE filemap = NULL;

		if (wParam == IDM_DUPSESS) {
		    /*
		     * Allocate a file-mapping memory chunk for the
		     * config structure.
		     */
		    SECURITY_ATTRIBUTES sa;
		    Config *p;

		    sa.nLength = sizeof(sa);
		    sa.lpSecurityDescriptor = NULL;
		    sa.bInheritHandle = TRUE;
		    filemap = CreateFileMapping(INVALID_HANDLE_VALUE,
						&sa,
						PAGE_READWRITE,
						0, sizeof(Config), NULL);
		    if (filemap && filemap != INVALID_HANDLE_VALUE) {
			p = (Config *) MapViewOfFile(filemap,
						     FILE_MAP_WRITE,
						     0, 0, sizeof(Config));
			if (p) {
			    *p = cfg;  /* structure copy */
			    UnmapViewOfFile(p);
			}
		    }
		    inherit_handles = TRUE;
		    sprintf(c, "putty &%p", filemap);
		    cl = c;
		} else if (wParam == IDM_SAVEDSESS) {
		    unsigned int sessno = ((lParam - IDM_SAVED_MIN)
					   / MENU_SAVED_STEP) + 1;
		    if (sessno < (unsigned)sesslist.nsessions) {
			char *session = sesslist.sessions[sessno];
			/* XXX spaces? quotes? "-load"? */
			cl = dupprintf("putty @%s", session);
			inherit_handles = FALSE;
			freecl = TRUE;
		    } else
			break;
		} else /* IDM_NEWSESS */ {
		    cl = NULL;
		    inherit_handles = FALSE;
		}

		GetModuleFileName(NULL, b, sizeof(b) - 1);
		si.cb = sizeof(si);
		si.lpReserved = NULL;
		si.lpDesktop = NULL;
		si.lpTitle = NULL;
		si.dwFlags = 0;
		si.cbReserved2 = 0;
		si.lpReserved2 = NULL;
		CreateProcess(b, cl, NULL, NULL, inherit_handles,
			      NORMAL_PRIORITY_CLASS, NULL, NULL, &si, &pi);

		if (filemap)
		    CloseHandle(filemap);
		if (freecl)
		    sfree(cl);
	    }
	    break;
	  case IDM_RESTART:
	    if (!back) {
		logevent(NULL, "----- Session restarted -----");
		term_pwron(term, FALSE);
		start_backend();
	    }

	    break;
	  case IDM_RECONF:
	    {
		Config prev_cfg;
		int init_lvl = 1;
		int reconfig_result;

		if (reconfiguring)
		    break;
		else
		    reconfiguring = TRUE;

		GetWindowText(hwnd, cfg.wintitle, sizeof(cfg.wintitle));
		prev_cfg = cfg;

		reconfig_result =
		    do_reconfig(hwnd, back ? back->cfg_info(backhandle) : 0);
		reconfiguring = FALSE;
		if (!reconfig_result)
		    break;

		{
		    /* Disable full-screen if resizing forbidden */
		    HMENU m = GetSystemMenu (hwnd, FALSE);
		    EnableMenuItem(m, IDM_FULLSCREEN, MF_BYCOMMAND | 
				   (cfg.resize_action == RESIZE_DISABLED)
				   ? MF_GRAYED : MF_ENABLED);
		    /* Gracefully unzoom if necessary */
		    if (IsZoomed(hwnd) &&
			(cfg.resize_action == RESIZE_DISABLED)) {
			ShowWindow(hwnd, SW_RESTORE);
		    }
		}

		/* Pass new config data to the logging module */
		log_reconfig(logctx, &cfg);

		sfree(logpal);
		/*
		 * Flush the line discipline's edit buffer in the
		 * case where local editing has just been disabled.
		 */
		if (ldisc)
		    ldisc_send(ldisc, NULL, 0, 0);
		if (pal)
		    DeleteObject(pal);
		logpal = NULL;
		pal = NULL;
		cfgtopalette();
		init_palette();

		/* Pass new config data to the terminal */
		term_reconfig(term, &cfg);

		/* Pass new config data to the back end */
		if (back)
		    back->reconfig(backhandle, &cfg);

		/* Screen size changed ? */
		if (cfg.height != prev_cfg.height ||
		    cfg.width != prev_cfg.width ||
		    cfg.savelines != prev_cfg.savelines ||
		    cfg.resize_action == RESIZE_FONT ||
		    (cfg.resize_action == RESIZE_EITHER && IsZoomed(hwnd)) ||
		    cfg.resize_action == RESIZE_DISABLED)
		    term_size(term, cfg.height, cfg.width, cfg.savelines);

		/* Enable or disable the scroll bar, etc */
		{
		    LONG nflg, flag = GetWindowLongPtr(hwnd, GWL_STYLE);
		    LONG nexflag, exflag =
			GetWindowLongPtr(hwnd, GWL_EXSTYLE);

		    nexflag = exflag;
		    if (cfg.alwaysontop != prev_cfg.alwaysontop) {
			if (cfg.alwaysontop) {
			    nexflag |= WS_EX_TOPMOST;
			    SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
					 SWP_NOMOVE | SWP_NOSIZE);
			} else {
			    nexflag &= ~(WS_EX_TOPMOST);
			    SetWindowPos(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
					 SWP_NOMOVE | SWP_NOSIZE);
			}
		    }
		    if (cfg.sunken_edge)
			nexflag |= WS_EX_CLIENTEDGE;
		    else
			nexflag &= ~(WS_EX_CLIENTEDGE);

		    nflg = flag;
		    if (is_full_screen() ?
			cfg.scrollbar_in_fullscreen : cfg.scrollbar)
			nflg |= WS_VSCROLL;
		    else
			nflg &= ~WS_VSCROLL;

		    if (cfg.resize_action == RESIZE_DISABLED ||
                        is_full_screen())
			nflg &= ~WS_THICKFRAME;
		    else
			nflg |= WS_THICKFRAME;

		    if (cfg.resize_action == RESIZE_DISABLED)
			nflg &= ~WS_MAXIMIZEBOX;
		    else
			nflg |= WS_MAXIMIZEBOX;

		    if (nflg != flag || nexflag != exflag) {
			if (nflg != flag)
			    SetWindowLongPtr(hwnd, GWL_STYLE, nflg);
			if (nexflag != exflag)
			    SetWindowLongPtr(hwnd, GWL_EXSTYLE, nexflag);

			SetWindowPos(hwnd, NULL, 0, 0, 0, 0,
				     SWP_NOACTIVATE | SWP_NOCOPYBITS |
				     SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
				     SWP_FRAMECHANGED);

			init_lvl = 2;
		    }
		}

		/* Oops */
		if (cfg.resize_action == RESIZE_DISABLED && IsZoomed(hwnd)) {
		    force_normal(hwnd);
		    init_lvl = 2;
		}

		set_title(NULL, cfg.wintitle);
		if (IsIconic(hwnd)) {
		    SetWindowText(hwnd,
				  cfg.win_name_always ? window_name :
				  icon_name);
		}

		if (strcmp(cfg.font.name, prev_cfg.font.name) != 0 ||
		    strcmp(cfg.line_codepage, prev_cfg.line_codepage) != 0 ||
		    cfg.font.isbold != prev_cfg.font.isbold ||
		    cfg.font.height != prev_cfg.font.height ||
		    cfg.font.charset != prev_cfg.font.charset ||
		    cfg.font_quality != prev_cfg.font_quality ||
		    cfg.vtmode != prev_cfg.vtmode ||
		    cfg.bold_colour != prev_cfg.bold_colour ||
		    cfg.resize_action == RESIZE_DISABLED ||
		    cfg.resize_action == RESIZE_EITHER ||
		    (cfg.resize_action != prev_cfg.resize_action))
		    init_lvl = 2;

		InvalidateRect(hwnd, NULL, TRUE);
		reset_window(init_lvl);
		net_pending_errors();
	    }
	    break;
	  case IDM_COPYALL:
	    term_copyall(term);
	    break;
	  case IDM_PASTE:
	    term_do_paste(term);
	    break;
	  case IDM_CLRSB:
	    term_clrsb(term);
	    break;
	  case IDM_RESET:
	    term_pwron(term, TRUE);
	    if (ldisc)
		ldisc_send(ldisc, NULL, 0, 0);
	    break;
	  case IDM_ABOUT:
	    showabout(hwnd);
	    break;
	  case IDM_HELP:
	    launch_help(hwnd, NULL);
	    break;
	  case SC_MOUSEMENU:
	    /*
	     * We get this if the System menu has been activated
	     * using the mouse.
	     */
	    show_mouseptr(1);
	    break;
          case SC_KEYMENU:
	    /*
	     * We get this if the System menu has been activated
	     * using the keyboard. This might happen from within
	     * TranslateKey, in which case it really wants to be
	     * followed by a `space' character to actually _bring
	     * the menu up_ rather than just sitting there in
	     * `ready to appear' state.
	     */
	    show_mouseptr(1);	       /* make sure pointer is visible */
	    if( lParam == 0 )
		PostMessage(hwnd, WM_CHAR, ' ', 0);
	    break;
	  case IDM_FULLSCREEN:
	    flip_full_screen();
	    break;
	  default:
	    if (wParam >= IDM_SAVED_MIN && wParam < IDM_SAVED_MAX) {
		SendMessage(hwnd, WM_SYSCOMMAND, IDM_SAVEDSESS, wParam);
	    }
	    if (wParam >= IDM_SPECIAL_MIN && wParam <= IDM_SPECIAL_MAX) {
		int i = (wParam - IDM_SPECIAL_MIN) / 0x10;
		/*
		 * Ensure we haven't been sent a bogus SYSCOMMAND
		 * which would cause us to reference invalid memory
		 * and crash. Perhaps I'm just too paranoid here.
		 */
		if (i >= n_specials)
		    break;
		if (back)
		    back->special(backhandle, specials[i].code);
		net_pending_errors();
	    }
	}
	break;

#define X_POS(l) ((int)(short)LOWORD(l))
#define Y_POS(l) ((int)(short)HIWORD(l))

#define TO_CHR_X(x) ((((x)<0 ? (x)-font_width+1 : (x))-offset_width) / font_width)
#define TO_CHR_Y(y) ((((y)<0 ? (y)-font_height+1: (y))-offset_height) / font_height)
      case WM_LBUTTONDOWN:
      case WM_MBUTTONDOWN:
      case WM_RBUTTONDOWN:
      case WM_LBUTTONUP:
      case WM_MBUTTONUP:
      case WM_RBUTTONUP:
	if (message == WM_RBUTTONDOWN &&
	    ((wParam & MK_CONTROL) || (cfg.mouse_is_xterm == 2))) {
	    POINT cursorpos;

	    show_mouseptr(1);	       /* make sure pointer is visible */
	    GetCursorPos(&cursorpos);
	    TrackPopupMenu(popup_menus[CTXMENU].menu,
			   TPM_LEFTALIGN | TPM_TOPALIGN | TPM_RIGHTBUTTON,
			   cursorpos.x, cursorpos.y,
			   0, hwnd, NULL);
	    break;
	}
	{
	    int button, press;

	    switch (message) {
	      case WM_LBUTTONDOWN:
		button = MBT_LEFT;
		press = 1;
		break;
	      case WM_MBUTTONDOWN:
		button = MBT_MIDDLE;
		press = 1;
		break;
	      case WM_RBUTTONDOWN:
		button = MBT_RIGHT;
		press = 1;
		break;