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transmission/web/javascript/formatter.js

272 lines
6.2 KiB
JavaScript

/**
*** This file Copyright (C) 2010 Mnemosyne LLC
***
*** This code is licensed under the GPL version 2.
*** For more details, see http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
**/
Transmission.fmt = (function()
{
var speed_K = 1000;
var speed_B_str = 'B';
var speed_K_str = 'KB/s';
var speed_M_str = 'MB/s';
var speed_G_str = 'GB/s';
var speed_T_str = 'TB/s';
var size_K = 1024;
var size_B_str = 'B';
var size_K_str = 'KB';
var size_M_str = 'MB';
var size_G_str = 'GB';
var size_T_str = 'TB';
var mem_K = 1024;
var mem_B_str = 'B';
var mem_K_str = 'KB';
var mem_M_str = 'MB';
var mem_G_str = 'GB';
var mem_T_str = 'TB';
return {
updateUnits: function( u )
{
speed_K = u['speed-bytes'];
speed_K_str = u['speed-units'][0];
speed_M_str = u['speed-units'][1];
speed_G_str = u['speed-units'][2];
speed_T_str = u['speed-units'][3];
size_K = u['size-bytes'];
size_K_str = u['size-units'][0];
size_M_str = u['size-units'][1];
size_G_str = u['size-units'][2];
size_T_str = u['size-units'][3];
mem_K = u['memory-bytes'];
mem_K_str = u['memory-units'][0];
mem_M_str = u['memory-units'][1];
mem_G_str = u['memory-units'][2];
mem_T_str = u['memory-units'][3];
},
/*
* Format a percentage to a string
*/
percentString: function( x ) {
if( x < 10.0 )
return x.toTruncFixed( 2 );
else if( x < 100.0 )
return x.toTruncFixed( 1 );
else
return x.toTruncFixed( 0 );
},
/*
* Format a ratio to a string
*/
ratioString: function( x ) {
if( x == -1 )
return "None";
else if( x == -2 )
return '&infin;';
else
return this.percentString( x );
},
/**
* Formats the a memory size into a human-readable string
* @param {Number} bytes the filesize in bytes
* @return {String} human-readable string
*/
mem: function( bytes )
{
if( bytes < mem_K )
return [ bytes, mem_B_str ].join(' ');
var convertedSize;
var unit;
if( bytes < Math.pow( mem_K, 2 ) )
{
convertedSize = bytes / mem_K;
unit = mem_K_str;
}
else if( bytes < Math.pow( mem_K, 3 ) )
{
convertedSize = bytes / Math.pow( mem_K, 2 );
unit = mem_M_str;
}
else if( bytes < Math.pow( mem_K, 4 ) )
{
convertedSize = bytes / Math.pow( mem_K, 3 );
unit = mem_G_str;
}
else
{
convertedSize = bytes / Math.pow( mem_K, 4 );
unit = mem_T_str;
}
// try to have at least 3 digits and at least 1 decimal
return convertedSize <= 9.995 ? [ convertedSize.toTruncFixed(2), unit ].join(' ')
: [ convertedSize.toTruncFixed(1), unit ].join(' ');
},
/**
* Formats the a disk capacity or file size into a human-readable string
* @param {Number} bytes the filesize in bytes
* @return {String} human-readable string
*/
size: function( bytes )
{
if( bytes < size_K )
return [ bytes, size_B_str ].join(' ');
var convertedSize;
var unit;
if( bytes < Math.pow( size_K, 2 ) )
{
convertedSize = bytes / size_K;
unit = size_K_str;
}
else if( bytes < Math.pow( size_K, 3 ) )
{
convertedSize = bytes / Math.pow( size_K, 2 );
unit = size_M_str;
}
else if( bytes < Math.pow( size_K, 4 ) )
{
convertedSize = bytes / Math.pow( size_K, 3 );
unit = size_G_str;
}
else
{
convertedSize = bytes / Math.pow( size_K, 4 );
unit = size_T_str;
}
// try to have at least 3 digits and at least 1 decimal
return convertedSize <= 9.995 ? [ convertedSize.toTruncFixed(2), unit ].join(' ')
: [ convertedSize.toTruncFixed(1), unit ].join(' ');
},
speedBps: function( Bps )
{
return this.speed( this.toKBps( Bps ) );
},
toKBps: function( Bps )
{
return Math.floor( Bps / speed_K );
},
speed: function( KBps )
{
var speed = KBps;
if (speed <= 999.95) // 0 KBps to 999.9 K
return [ speed.toTruncFixed(1), speed_K_str ].join(' ');
speed /= speed_K;
if (speed <= 99.995) // 1 M to 99.99 M
return [ speed.toTruncFixed(2), speed_M_str ].join(' ');
if (speed <= 999.95) // 100 M to 999.9 M
return [ speed.toTruncFixed(1), speed_M_str ].join(' ');
// insane speeds
speed /= speed_K;
return [ speed.toTruncFixed(2), speed_G_str ].join(' ');
},
timeInterval: function( seconds )
{
var result;
var days = Math.floor(seconds / 86400);
var hours = Math.floor((seconds % 86400) / 3600);
var minutes = Math.floor((seconds % 3600) / 60);
var seconds = Math.floor((seconds % 3600) % 60);
if (days > 0 && hours == 0)
result = [ days, 'days' ];
else if (days > 0 && hours > 0)
result = [ days, 'days', hours, 'hr' ];
else if (hours > 0 && minutes == 0)
result = [ hours, 'hr' ];
else if (hours > 0 && minutes > 0)
result = [ hours,'hr', minutes, 'min' ];
else if (minutes > 0 && seconds == 0)
result = [ minutes, 'min' ];
else if (minutes > 0 && seconds > 0)
result = [ minutes, 'min', seconds, 'seconds' ];
else
result = [ seconds, 'seconds' ];
return result.join(' ');
},
timestamp: function( seconds )
{
if( !seconds )
return 'N/A';
var myDate = new Date(seconds*1000);
var now = new Date();
var date = "";
var time = "";
var sameYear = now.getFullYear() == myDate.getFullYear();
var sameMonth = now.getMonth() == myDate.getMonth();
var dateDiff = now.getDate() - myDate.getDate();
if(sameYear && sameMonth && Math.abs(dateDiff) <= 1){
if(dateDiff == 0){
date = "Today";
}
else if(dateDiff == 1){
date = "Yesterday";
}
else{
date = "Tomorrow";
}
}
else{
date = myDate.toDateString();
}
var hours = myDate.getHours();
var period = "AM";
if(hours > 12){
hours = hours - 12;
period = "PM";
}
if(hours == 0){
hours = 12;
}
if(hours < 10){
hours = "0" + hours;
}
var minutes = myDate.getMinutes();
if(minutes < 10){
minutes = "0" + minutes;
}
var seconds = myDate.getSeconds();
if(seconds < 10){
seconds = "0" + seconds;
}
time = [hours, minutes, seconds].join(':');
return [date, time, period].join(' ');
},
plural: function( i, word )
{
return [ i, ' ', word, (word==1?'':'s') ].join('');
}
}
})();