scripts/volume.js
author Dan
Wed, 24 Sep 2008 13:47:42 -0400
changeset 54 6d8b9497e44b
parent 6 5f35ebc4f9bb
child 58 05a69bab5f10
permissions -rw-r--r--
Added check for PHP 5.1.0 and improved error handling for missing pcntl
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/**
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 * Volume widget presentation code
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 * 
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5f35ebc4f9bb First release version. Renamed to Greyhound and readme/license files added.
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 * Greyhound - real web management for Amarok
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 * Copyright (C) 2008 Dan Fuhry
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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var current_volume = 0;
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function set_volume_fill(amount)
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{
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  amount = 10 * ( Math.round(amount / 10) );
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  if ( amount == 0 )
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    amount = -10;
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  for ( var i = 0; i <= amount; i += 10 )
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  {
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    if ( !$('volbtn_' + i).hasClass('volume_button_active') )
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    {
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      $('volbtn_' + i).addClass('volume_button_active');
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    }
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  }
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  for ( ; i <= 100; i += 10 )
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  {
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    if ( $('volbtn_' + i).hasClass('volume_button_active') )
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    {
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      $('volbtn_' + i).rmClass('volume_button_active');
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    }
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  }
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}
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function volume_over(amount)
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{
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  set_volume_fill(amount);
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}
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function volume_out()
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{
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  set_volume_fill(current_volume);
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}
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function set_volume(level)
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{
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  setAjaxLoading();
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  if ( level == current_volume )
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    return false;
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  ajaxGet('/action.json/volume/' + level, function()
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    {
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      if ( ajax.readyState == 4 && ajax.status == 200 )
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      {
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        unsetAjaxLoading();
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        var response = (' ' + ajax.responseText).substr(1);
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        // quickie JSON parser :)
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        response = eval('(' + response + ')');
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        // update volume
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        if ( response.volume != current_volume )
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        {
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          set_volume_fill(response.volume);
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          current_volume = response.volume;
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        }
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      }
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    });
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}
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