sct_add_buffer.js

// ==UserScript==// @name           sct_add_buffer.js// @namespace      http://example.org// @description    adds information about your current buffer(sct-version)// @include        http://www.scenetorrents.org/*// @include        http://scenetorrents.org/*// @include        https://scenetorrents.org/*// @include        https://www.scenetorrents.org/*// ==/UserScript==(function(){       if(location.hostname.indexOf('scenetorrents.org') == -1) {       return false;   }      function getNodes(expression, startElement) {       startElement = startElement || document;       var nodes = document.evaluate( expression, startElement, null,                                       XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null );              return nodes;   }      function trim(str) {        return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');      }      function getGigaBytes(text){        var gigabytes, numbers, suffix;        text = trim(text);                if(text == 'Inf.' || text == '---') {            return 0;        }                var _tmp = text.split(' ');        numbers  = Number(_tmp[0]);        suffix   = _tmp[1];        //alert('suffix er: "' + suffix + "'")        switch(suffix){            case 'GB':                gigabytes =  numbers;                break;            case 'TB':                gigabytes = numbers*1024;                break;            case 'MB':                gigabytes = numbers*0.0009765625;                break;            case 'kB':                //no point in doing calculations with that low numbers                gigabytes = 0;                 break;            default:                gigabytes = numbers;                break;                            }           return gigabytes;      }       function _t(e) {           try{                                 var downloadNode = getNodes('//table//td[@class="layout"]//span[text()="Downloaded:"]').snapshotItem(0);           if(!downloadNode){ alert('ikke funnet');return;}                      var dl = downloadNode.nextSibling;           if(dl.nodeType == 3) {                dl = dl.nextSibling;           }                                 var uploadNode = getNodes('//table//td[@class="layout"]//span[text()="Uploaded:"]').snapshotItem(0);           if(!uploadNode){ return;}           var ul = uploadNode.nextSibling;                      if(ul.nodeType == 3) {                ul = ul.nextSibling;           }                      var uploaded = getGigaBytes(ul.textContent);           var downloaded = getGigaBytes(dl.textContent);                                 var container = document.createElement('span');                      var labelContainer = document.createElement('span');           labelContainer.style.color='purple';           labelContainer.appendChild(document.createTextNode(' Buffer: '));           container.appendChild(labelContainer);                      if(downloaded >= uploaded) {                container.appendChild(document.createTextNode('---'));           } else {                var buffer = Math.round((uploaded-downloaded)*100)/100;//always in GB, two decimals                container.appendChild(document.createTextNode( buffer+ ' GB'));                      }           container.appendChild(document.createTextNode('  '));           //insert before activeTorrentsNode           dl.parentNode.insertBefore(container, dl.nextSibling);                  }catch(e) {            alert('feil: ' + e)       }   }   if(window.opera) {        window.addEventListener('DOMContentLoaded', _t, false);           } else {        window.addEventListener('load', _t, false);   }})();