// Message box and visual effect system

/**

 * Darkens the browser screen. This will make the entire page un-clickable except for any floating divs created after this is called. Restore with enlighten().

 * @param bool Controls whether the fade should be disabled or not. aclDisableTransitionFX will override this if set to true, and fades are never fired on IE.

 * @param int When specified, represents the numeric opacity value to set the fade layer to. 1-100.

 */

function darken(nofade, opacVal)

{

  if(IE)

    nofade = true;

  if ( !opacVal )

    opacVal = 70;

  if(document.getElementById('specialLayer_darkener'))

  {

    if(nofade)

    {

      changeOpac(opacVal, 'specialLayer_darkener');

      document.getElementById('specialLayer_darkener').style.display = 'block';

      document.getElementById('specialLayer_darkener').myOpacVal = opacVal;

    }

    else

    {

      if ( document.getElementById('specialLayer_darkener').style.display != 'none' )

      {

        var currentOpac = document.getElementById('specialLayer_darkener').myOpacVal;

        opacity('specialLayer_darkener', currentOpac, opacVal, 1000);

        document.getElementById('specialLayer_darkener').myOpacVal = opacVal;

      }

      else

      {

        document.getElementById('specialLayer_darkener').style.display = 'block';

        document.getElementById('specialLayer_darkener').myOpacVal = opacVal;

        opacity('specialLayer_darkener', 0, opacVal, 1000);

      }

    }

  } else {

    w = getWidth();

    h = getHeight();

    var thediv = document.createElement('div');

    if(IE)

      thediv.style.position = 'absolute';

    else

      thediv.style.position = 'fixed';

    if ( IE )

    {

      var top = getScrollOffset();

      thediv.style.top = String(top) + 'px';

    }

    else

    {

      thediv.style.top = '0px';

    }

    thediv.style.left = '0px';

    thediv.style.opacity = '0';

    thediv.style.filter = 'alpha(opacity=0)';

    thediv.style.backgroundColor = '#000000';

    thediv.style.width =  '100%';

    thediv.style.height = '100%';

    thediv.zIndex = getHighestZ() + 5;

    thediv.id = 'specialLayer_darkener';

    thediv.myOpacVal = opacVal;

    if(nofade)

    {

      thediv.style.opacity = ( parseFloat(opacVal) / 100 );

      thediv.style.filter = 'alpha(opacity=' + opacVal + ')';

      body = document.getElementsByTagName('body');

      body = body[0];

      body.appendChild(thediv);

    } else {

      body = document.getElementsByTagName('body');

      body = body[0];

      body.appendChild(thediv);

      opacity('specialLayer_darkener', 0, opacVal, 1000);

    }

  }

}

/**

 * Un-darkens the screen and re-enables clicking of on-screen controls.

 * @param bool If true, disables the fade effect. Fades are always disabled if aclDisableTransitionFX is true and on IE.

 */

function enlighten(nofade)

{

  if(IE)

    nofade = true;

  if(document.getElementById('specialLayer_darkener'))

  {

    if(nofade)

    {

      document.getElementById('specialLayer_darkener').style.display = 'none';

    }

    else

    {

      var from = document.getElementById('specialLayer_darkener').myOpacVal;

      // console.info('Fading from ' + from);

      opacity('specialLayer_darkener', from, 0, 1000);

      setTimeout("document.getElementById('specialLayer_darkener').style.display = 'none';", 1000);

    }

  }

}

/**

 * The ultimate message box framework for Javascript

 * Syntax is (almost) identical to the MessageBox command in NSIS

 * @param int type - a bitfield consisting of the MB_* constants

 * @param string title - the blue text at the top of the window

 * @param string text - HTML for the body of the message box

 * Properties:

 *   onclick - an array of functions to be called on button click events

 *             NOTE: key names are to be strings, and they must be the value of the input, CaSe-SeNsItIvE

 *   onbeforeclick - same as onclick but called before the messagebox div is destroyed

 * Methods:

 *   destroy: kills the running message box

 * Example:

 *   var my_message = new messagebox(MB_OK|MB_ICONSTOP, 'Error logging in', 'The username and/or password is incorrect. Please check the username and retype your password');

 *   my_message.onclick['OK'] = function() {

 *       document.getElementById('password').value = '';

 *     };

 * Deps:

 *   Modern browser that supports DOM

 *   darken() and enlighten() (above)

 *   opacity() - required for darken() and enlighten()

 *   MB_* constants are defined in enano-lib-basic.js

 */

var mb_current_obj;

var mb_previously_had_darkener = false;

function messagebox(type, title, message)

{

  var y = getScrollOffset();

  // Prevent multiple instances

  if ( document.getElementById('messageBox') )

    return;

  if ( document.getElementById('specialLayer_darkener') )

    if ( document.getElementById('specialLayer_darkener').style.display == 'block' )

      mb_previously_had_darkener = true;

  if ( !mb_previously_had_darkener )

    darken(true);

  if ( aclDisableTransitionFX )

  {

    document.getElementById('specialLayer_darkener').style.zIndex = '5';

  }

  var master_div = document.createElement('div');

  master_div.style.zIndex = '6';

  var mydiv = document.createElement('div');

  mydiv.style.height = '200px';

  w = getWidth();

  h = getHeight();

  if ( aclDisableTransitionFX )

  {

    master_div.style.left = ((w / 2) - 200)+'px';

    master_div.style.top = ((h / 2) + y - 120)+'px';

    master_div.style.position = 'absolute';

  }

  else

  {

    master_div.style.top = '-10000px';

    master_div.style.position = ( IE ) ? 'absolute' : 'fixed';

  }

  z = ( aclDisableTransitionFX ) ? document.getElementById('specialLayer_darkener').style.zIndex : getHighestZ();

  mydiv.style.backgroundColor = '#FFFFFF';

  mydiv.style.padding = '10px';

  mydiv.style.marginBottom = '1px';

  mydiv.id = 'messageBox';

  mydiv.style.overflow = 'auto';

  var buttondiv = document.createElement('div');

  if ( is_iPhone )

  {

    mydiv.style.width = '120px';

    buttondiv.style.width = '120px';

  }

  else

  {

    mydiv.style.width = '400px';

    buttondiv.style.width = '400px';

  }

  w = getWidth();

  h = getHeight();

  if ( aclDisableTransitionFX )

  {

    //buttondiv.style.left = ((w / 2) - 200)+'px';

    //buttondiv.style.top = ((h / 2) + y + 101)+'px';

  }

  //buttondiv.style.position = ( IE ) ? 'absolute' : 'fixed';

  z = ( aclDisableTransitionFX ) ? document.getElementById('specialLayer_darkener').style.zIndex : getHighestZ();

  buttondiv.style.backgroundColor = '#C0C0C0';

  buttondiv.style.padding = '10px';

  buttondiv.style.textAlign = 'right';

  buttondiv.style.verticalAlign = 'middle';

  buttondiv.id = 'messageBoxButtons';

  this.clickHandler = function() { messagebox_click(this, mb_current_obj); };

  if( ( type & MB_ICONINFORMATION || type & MB_ICONSTOP || type & MB_ICONQUESTION || type & MB_ICONEXCLAMATION ) && !(type & MB_ICONLOCK) )

  {

    mydiv.style.paddingLeft = '50px';

    mydiv.style.width = '360px';

    mydiv.style.backgroundRepeat = 'no-repeat';

    mydiv.style.backgroundPosition = '8px 8px';

  }

  else if ( type & MB_ICONLOCK )

  {

    mydiv.style.paddingLeft = '50px';

    mydiv.style.width = '360px';

    mydiv.style.backgroundRepeat = 'no-repeat';

  }

  if(type & MB_ICONINFORMATION)

  {

    mydiv.style.backgroundImage = 'url(\''+scriptPath+'/images/info.png\')';

  }

  if(type & MB_ICONQUESTION)

  {

    mydiv.style.backgroundImage = 'url(\''+scriptPath+'/images/question.png\')';

  }

  if(type & MB_ICONSTOP)

  {

    mydiv.style.backgroundImage = 'url(\''+scriptPath+'/images/error.png\')';

  }

  if(type & MB_ICONEXCLAMATION)

  {

    mydiv.style.backgroundImage = 'url(\''+scriptPath+'/images/warning.png\')';

  }

  if(type & MB_ICONLOCK)

  {

    mydiv.style.backgroundImage = 'url(\''+scriptPath+'/images/lock.png\')';

  }

  if(type & MB_OK)

  {

    btn = document.createElement('input');

    btn.type = 'button';

    btn.value = $lang.get('etc_ok');

    btn._GenericName = 'OK';

    btn.onclick = this.clickHandler;

    btn.style.margin = '0 3px';

    buttondiv.appendChild(btn);

  }

  if(type & MB_OKCANCEL)

  {

    btn = document.createElement('input');

    btn.type = 'button';

    btn.value = $lang.get('etc_ok');

    btn._GenericName = 'OK';

    btn.onclick = this.clickHandler;

    btn.style.margin = '0 3px';

    buttondiv.appendChild(btn);

    btn = document.createElement('input');

    btn.type = 'button';

    btn.value = $lang.get('etc_cancel');

    btn._GenericName = 'Cancel';

    btn.onclick = this.clickHandler;

    btn.style.margin = '0 3px';

    buttondiv.appendChild(btn);

  }

  if(type & MB_YESNO)

  {

    btn = document.createElement('input');

    btn.type = 'button';

    btn.value = $lang.get('etc_yes');

    btn._GenericName = 'Yes';

    btn.onclick = this.clickHandler;

    btn.style.margin = '0 3px';

    buttondiv.appendChild(btn);

    btn = document.createElement('input');

    btn.type = 'button';

    btn.value = $lang.get('etc_no');

    btn._GenericName = 'No';

    btn.onclick = this.clickHandler;

    btn.style.margin = '0 3px';

    buttondiv.appendChild(btn);

  }

  if(type & MB_YESNOCANCEL)

  {

    btn = document.createElement('input');

    btn.type = 'button';

    btn.value = $lang.get('etc_yes');

    btn._GenericName = 'Yes';

    btn.onclick = this.clickHandler;

    btn.style.margin = '0 3px';

    buttondiv.appendChild(btn);

    btn = document.createElement('input');

    btn.type = 'button';

    btn.value = $lang.get('etc_no');

    btn._GenericName = 'No';

    btn.onclick = this.clickHandler;

    btn.style.margin = '0 3px';

    buttondiv.appendChild(btn);

    btn = document.createElement('input');

    btn.type = 'button';

    btn.value = $lang.get('etc_cancel');

    btn._GenericName = 'Cancel';

    btn.onclick = this.clickHandler;

    btn.style.margin = '0 3px';

    buttondiv.appendChild(btn);

  }

  heading = document.createElement('h2');

  heading.innerHTML = title;

  heading.style.color = '#50A0D0';

  heading.style.fontFamily = 'trebuchet ms, verdana, arial, helvetica, sans-serif';

  heading.style.fontSize = '12pt';

  heading.style.fontWeight = 'lighter';

  heading.style.textTransform = 'lowercase';

  heading.style.marginTop = '0';

  mydiv.appendChild(heading);

  var text = document.createElement('div');

  text.innerHTML = String(message);

  this.text_area = text;

  mydiv.appendChild(text);

  this.updateContent = function(text)

    {

      this.text_area.innerHTML = text;

    };

  this.destroy = function()

    {

      var mbdiv = document.getElementById('messageBox');

      mbdiv.parentNode.removeChild(mbdiv.nextSibling);

      mbdiv.parentNode.removeChild(mbdiv);

      if ( !mb_previously_had_darkener )

        enlighten(true);

    };

  //domObjChangeOpac(0, mydiv);

  //domObjChangeOpac(0, master_div);

  body = document.getElementsByTagName('body');

  body = body[0];

  master_div.appendChild(mydiv);

  master_div.appendChild(buttondiv);

  body.appendChild(master_div);

  if ( !aclDisableTransitionFX )

    setTimeout('mb_runFlyIn();', 100);

  this.onclick = new Array();

  this.onbeforeclick = new Array();

  mb_current_obj = this;

}

function mb_runFlyIn()

{

  var mydiv = document.getElementById('messageBox');

  var maindiv = mydiv.parentNode;

  fly_in_top(maindiv, true, false);

}

function messagebox_click(obj, mb)

{

  val = ( typeof ( obj._GenericName ) == 'string' ) ? obj._GenericName : obj.value;

  if(typeof mb.onbeforeclick[val] == 'function')

  {

    var o = mb.onbeforeclick[val];

    var resp = o();

    if ( resp )

      return false;

    o = false;

  }

  var mydiv = document.getElementById('messageBox');

  var maindiv = mydiv.parentNode;

  if ( aclDisableTransitionFX )

  {

    var mbdiv = document.getElementById('messageBox');

    mbdiv.parentNode.removeChild(mbdiv.nextSibling);

    mbdiv.parentNode.removeChild(mbdiv);

    if ( !mb_previously_had_darkener )

      enlighten(true);

  }

  else

  {

    var to = fly_out_top(maindiv, true, false);

    setTimeout("var mbdiv = document.getElementById('messageBox'); mbdiv.parentNode.removeChild(mbdiv.nextSibling); mbdiv.parentNode.removeChild(mbdiv); if ( !mb_previously_had_darkener ) enlighten(true);", to);

  }