/* Copyright (C) 2003-2015 LiveCode Ltd.

This file is part of LiveCode.

LiveCode is free software; you can redistribute it and/or modify it under

the terms of the GNU General Public License v3 as published by the Free

Software Foundation.

LiveCode 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 LiveCode. If not see <http://www.gnu.org/licenses/>. */

#include "prefix.h"

#include "globdefs.h"

#include "filedefs.h"

#include "objdefs.h"

#include "parsedef.h"

#include "scriptpt.h"

#include "util.h"

#include "date.h"

#include "sellst.h"

#include "stack.h"

#include "aclip.h"

#include "player.h"

#include "card.h"

#include "param.h"

#include "mcerror.h"

#include "ans.h"

#include "debug.h"

#include "dispatch.h"

#include "securemode.h"

#include "exec.h"

#include "osspec.h"

#include "globals.h"

#include "meta.h"

#include "ask.h"

MCAsk::~MCAsk(void)

{

delete title;

switch(mode)

{

case AT_PASSWORD:

case AT_CLEAR:

delete password . prompt;

delete password . answer;

break;

case AT_FILE:

delete file . prompt;

delete file . initial;

delete file . filter;

for(uint4 t_type = 0; t_type < file . type_count; ++t_type)

delete file . types[t_type];

delete[] file . types; /* Allocated with new[] */

break;

default:

delete question . prompt;

delete question . answer;

break;

}

}

Parse_stat MCAsk::parse(MCScriptPoint &sp)

{

Parse_errors t_error = PE_UNDEFINED;

Symbol_type t_type;

const LT *t_literal;

initpoint(sp);

if (sp . next(t_type) == PS_NORMAL)

{

if (sp . lookup(SP_ASK, t_literal) == PS_NORMAL)

mode = (Ask_type)t_literal -> which;

else

sp . backup();

}

// MW-2008-07-23: [[ Bug 6821 ]] ask files "foo" crashes.

// This is because the mode check is not strict enough. If the given ask

// mode is not known, we backup and then parse it as a question form.

switch(mode)

{

case AT_PASSWORD:

t_error = parse_password(sp);

break;

case AT_FILE:

t_error = parse_file(sp);

break;

case AT_INFORMATION:

case AT_QUESTION:

case AT_ERROR:

case AT_WARNING:

case AT_UNDEFINED:

t_error = parse_question(sp);

break;

default:

sp . backup();

mode = AT_QUESTION;

t_error = parse_question(sp);

break;

}

if (t_error == PE_UNDEFINED && sp . skip_token(SP_ASK, TT_UNDEFINED, AT_TITLED) == PS_NORMAL)

if (sp . parseexp(False, True, &title) != PS_NORMAL)

t_error = PE_ANSWER_BADTITLE;

if (t_error == PE_UNDEFINED && sp . skip_token(SP_FACTOR, TT_PREP, PT_AS) == PS_NORMAL)

{

if (sp . skip_token(SP_ASK, TT_UNDEFINED, AT_SHEET) == PS_NORMAL)

sheet = True;

else

t_error = PE_ANSWER_BADRESPONSE;

}

if (t_error != PE_UNDEFINED)

{

MCperror -> add(t_error, sp);

return PS_ERROR;

}

return PS_NORMAL;

}

Parse_errors MCAsk::parse_password(MCScriptPoint& sp)

{

Parse_errors t_error = PE_UNDEFINED;

if (sp . skip_token(SP_ASK, TT_UNDEFINED, AT_CLEAR) == PS_NORMAL)

mode = AT_CLEAR;

if (sp . parseexp(False, True, &password . prompt) != PS_NORMAL)

t_error = PE_ASK_BADQUESTION;

if (sp . skip_token(SP_REPEAT, TT_UNDEFINED, RF_WITH) == PS_NORMAL)

{

// MW-2012-10-12: [[ Bug 10377 ]] Check for 'hint' mode.

if (sp . skip_token(SP_ASK, TT_UNDEFINED, AT_HINT) == PS_NORMAL)

password . hint = true;

else

password . hint = false;

if (sp . parseexp(False, True, &password . answer) != PS_NORMAL)

t_error = PE_ASK_BADREPLY;

}

return t_error;

}

Parse_errors MCAsk::parse_question(MCScriptPoint& sp)

{

Parse_errors t_error = PE_UNDEFINED;

if (sp . parseexp(False, True, &question . prompt) != PS_NORMAL)

t_error = PE_ASK_BADQUESTION;

if (sp . skip_token(SP_REPEAT, TT_UNDEFINED, RF_WITH) == PS_NORMAL)

{

// MW-2012-10-12: [[ Bug 10377 ]] Check for 'hint' mode.

if (sp . skip_token(SP_ASK, TT_UNDEFINED, AT_HINT) == PS_NORMAL)

question . hint = true;

else

question . hint = false;

if (sp . parseexp(False, True, &question . answer) != PS_NORMAL)

t_error = PE_ASK_BADREPLY;

}

return t_error;

}

Parse_errors MCAsk::parse_file(MCScriptPoint& sp)

{

Parse_errors t_error = PE_UNDEFINED;

if (sp . parseexp(False, True, &file . prompt) != PS_NORMAL)

t_error = PE_ASK_BADQUESTION;

if (t_error == PE_UNDEFINED && sp . skip_token(SP_REPEAT, TT_UNDEFINED, RF_WITH) == PS_NORMAL)

{

if (sp . skip_token(SP_COMMAND, TT_STATEMENT, S_FILTER) == PS_NORMAL || sp . skip_token(SP_COMMAND, TT_STATEMENT, S_TYPE) == PS_NORMAL)

sp . backup(), sp . backup();

else if (sp . parseexp(False, True, &file . initial) != PS_NORMAL)

t_error = PE_ASK_BADREPLY;

}

if (t_error == PE_UNDEFINED && sp . skip_token(SP_REPEAT, TT_UNDEFINED, RF_WITH) == PS_NORMAL)

{

if (sp . skip_token(SP_COMMAND, TT_STATEMENT, S_FILTER) == PS_NORMAL)

{

if (sp . parseexp(False, True, &file . filter) != PS_NORMAL)

t_error = PE_ASK_BADREPLY;

}

else if (sp . skip_token(SP_COMMAND, TT_STATEMENT, S_TYPE) == PS_NORMAL)

{

do

{

MCU_realloc((char **)&file . types, file . type_count, file . type_count + 1, sizeof(MCExpression *));

if (sp . parseexp(True, True, &file . types[file . type_count]) != PS_NORMAL)

t_error = PE_ASK_BADREPLY;

else

file . type_count += 1;

}

while(!t_error && sp . skip_token(SP_FACTOR, TT_BINOP, O_OR) == PS_NORMAL &&

(sp . skip_token(SP_COMMAND, TT_STATEMENT, S_TYPE) == PS_NORMAL || sp . skip_token(SP_ASK, TT_UNDEFINED, AT_TYPES) == PS_NORMAL));

}

else

t_error = PE_ASK_BADREPLY;

}

return t_error;

}

void MCAsk::exec_ctxt(class MCExecContext& ctxt)

{

MCAutoStringRef t_title;

if (!ctxt . EvalOptionalExprAsNullableStringRef(title, EE_ANSWER_BADTITLE, &t_title))

return;

switch(mode)

{

case AT_PASSWORD:

case AT_CLEAR:

{

MCAutoStringRef t_prompt, t_answer;

if (!ctxt . EvalOptionalExprAsNullableStringRef(password . prompt, EE_ASK_BADREPLY, &t_prompt))

return;

if (!ctxt . EvalOptionalExprAsNullableStringRef(password . answer, EE_ASK_BADREPLY, &t_answer))

return;

MCDialogExecAskPassword(ctxt, mode == AT_CLEAR, *t_prompt, *t_answer, password . hint, *t_title, sheet == True);

}

break;

case AT_FILE:

{

MCAutoStringRef t_prompt, t_initial, t_filter;

MCAutoStringRefArray t_types;

if (!ctxt . EvalOptionalExprAsNullableStringRef(file.prompt, EE_ANSWER_BADQUESTION, &t_prompt))

return;

if (!ctxt . EvalOptionalExprAsNullableStringRef(file.initial, EE_ANSWER_BADQUESTION, &t_initial))

return;

if (!ctxt . EvalOptionalExprAsNullableStringRef(file.filter, EE_ANSWER_BADQUESTION, &t_filter))

return;

MCAutoStringRef t_initial_resolved;

if (*t_initial != nil)

{

// We only want to resolve the path if it is relative

// (otherwise it will be created where LiveCode is located)

if (MCStringContains(*t_initial, MCSTR("/"), kMCStringOptionCompareExact))

{

// IM-2014-08-06: [[ Bug 13096 ]] Allow file dialogs to work with relative paths by resolving to absolute

if (!MCS_resolvepath(*t_initial, &t_initial_resolved))

{

ctxt . LegacyThrow(EE_NO_MEMORY);

return;

}

}

else

{

// We simply take the initial path as it is

t_initial_resolved = *t_initial;

}

}

if (file . type_count > 0)

{

/* UNCHECKED */ t_types.Extend(file.type_count);

for (uindex_t i = 0; i < file.type_count; i++)

{

if (!ctxt . EvalOptionalExprAsNullableStringRef(file.types[i], EE_ANSWER_BADQUESTION, t_types[i]))

return;

}

}

if (t_types.Count() > 0)

MCDialogExecAskFileWithTypes(ctxt, *t_prompt, *t_initial_resolved, *t_types, t_types . Count(), *t_title, sheet == True);

else if (*t_filter != nil)

MCDialogExecAskFileWithFilter(ctxt, *t_prompt, *t_initial_resolved, *t_filter, *t_title, sheet == True);

else

MCDialogExecAskFile(ctxt, *t_prompt, *t_initial_resolved, *t_title, sheet == True);

}

break;

default:

{

MCAutoStringRef t_prompt, t_answer;

if (!ctxt . EvalOptionalExprAsNullableStringRef(question . prompt, EE_ASK_BADREPLY, &t_prompt))

return;

if (!ctxt . EvalOptionalExprAsNullableStringRef(question . answer, EE_ASK_BADREPLY, &t_answer))

return;

MCDialogExecAskQuestion(ctxt, mode, *t_prompt, *t_answer, question . hint, *t_title, sheet == True);

}

break;

}

}