Function ShowMainWindow

source/script2.cpp:4623–4727

ResultType ShowMainWindow(MainWindowModes aMode, bool aRestricted)
// Always returns OK for caller convenience.
{
	// v1.0.30.05: Increased from 32 KB to 64 KB, which is the maximum size of an Edit
	// in Win9x:
	TCHAR buf_temp[65534];  // Formerly 32767.
	*buf_temp = '\0';
	bool jump_to_bottom = false;  // Set default behavior for edit control.
	static MainWindowModes current_mode = MAIN_MODE_NO_CHANGE;

	// If we were called from a restricted place, such as via the Tray Menu or the Main Menu,
	// don't allow potentially sensitive info such as script lines and variables to be shown.
	// This is done so that scripts can be compiled more securely, making it difficult for anyone
	// to use ListLines to see the author's source code.  Rather than make exceptions for things
	// like KeyHistory, it seems best to forbid all information reporting except in cases where
	// existing info in the main window -- which must have gotten there via an allowed function
	// such as ListLines encountered in the script -- is being refreshed.  This is because in
	// that case, the script author has given de facto permission for that loophole (and it's
	// a pretty small one, not easy to exploit):
	if (aRestricted && !g_AllowMainWindow && (current_mode == MAIN_MODE_NO_CHANGE || aMode != MAIN_MODE_REFRESH))
	{
		// This used to set g_hWndEdit's text to an explanation for why the information will not
		// be shown, but it would never be seen unless the window was shown by some other means.
		// Since the menu items are disabled or removed, execution probably reached here as a
		// result of direct PostMessage to the script, so whoever did it can probably deal with
		// the lack of explanation (if the window was even visible).  The explanation contained
		// obsolete syntax (Menu, Tray, MainWindow) and was removed rather than updated to reduce
		// code size.  It seems unnecessary to even clear g_hWndEdit: either it's already empty,
		// or content was placed there deliberately and was already accessible.
		//SendMessage(g_hWndEdit, WM_SETTEXT, 0, (LPARAM)_T("Disabled"));
		return OK;
	}

	// If the window is empty, caller wants us to default it to showing the most recently
	// executed script lines:
	if (current_mode == MAIN_MODE_NO_CHANGE && (aMode == MAIN_MODE_NO_CHANGE || aMode == MAIN_MODE_REFRESH))
		aMode = MAIN_MODE_LINES;

	switch (aMode)
	{
	// case MAIN_MODE_NO_CHANGE: do nothing
	case MAIN_MODE_LINES:
		Line::LogToText(buf_temp, _countof(buf_temp));
		jump_to_bottom = true;
		break;
	case MAIN_MODE_VARS:
		g_script.ListVars(buf_temp, _countof(buf_temp));
		break;
	case MAIN_MODE_HOTKEYS:
		Hotkey::ListHotkeys(buf_temp, _countof(buf_temp));
		break;
	case MAIN_MODE_KEYHISTORY:
		g_script.ListKeyHistory(buf_temp, _countof(buf_temp));
		break;
	case MAIN_MODE_REFRESH:
		// Rather than do a recursive call to self, which might stress the stack if the script is heavily recursed:
		switch (current_mode)
		{