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Password
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2003-02-14
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//--------------------------------------------------------------------------
//
// Copyright (c) 2002, Colin Granville
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or
// without modification, are permitted provided that the following
// conditions are met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// * The name Colin Granville may not be used to endorse or promote
// products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
//
//--------------------------------------------------------------------------
#include "password.h"
#include "GuiWindow.h"
#include "GuiGadget.h"
#include "UserEvents.h"
#include "GuiTargets.h"
class Password
{
public:
Password();
~Password();
bool get(string& user,string& owner);
private:
GuiWindow window;
GuiWritableField password;
GuiOptionButton isOwner;
enum {READY,BUSY,FINISHED,CANCELLED} status;
GUI_DECLARE_EVENT_TARGETS(Password);
GuiToolboxTarget okPressedTarget;
Claim okPressed(GuiToolboxEvent&,const GuiIdBlock&);
GuiNullTarget nullEventTarget;
void nullEvent();
};
//*************************************************************************
Password::Password()
: window("Password"),
password(window,1),
isOwner(window,6),
okPressedTarget(&window,User_Password,this,Password::okPressed),
status(READY)
{
}
//*************************************************************************
Password::~Password() {}
//*************************************************************************
bool Password::get(string& user,string& owner)
{
user.clear();
owner.clear();
if (status!=READY) return 0;
window.showCentred();
password.setValue("");
isOwner.set(0);
status=BUSY;
nullEventTarget(this,Password::nullEvent);
while (status==BUSY) GuiRegister::poll();
window.hide();
nullEventTarget.destroy();
user=password.getValue();
if (isOwner.isOn()) {owner=user;user.clear();}
if (status==CANCELLED) {status=READY;return 0;}
status=READY;
return 1;
}
//*************************************************************************
void Password::nullEvent()
{
if (status==BUSY && !window.isShowing()) status=CANCELLED;
}
//*************************************************************************
Claim Password::okPressed(GuiToolboxEvent&,const GuiIdBlock&)
{
status=FINISHED;
return CLAIM;
}
//*************************************************************************
bool getPassword(string& user,string& owner)
{
static Password p;
return p.get(user,owner);
}