Douban Quote Button

By sakinijino — Last update Apr 15, 2006 — Installed 383 times.
// ==UserScript==
// @name           Douban Quote Button
// @namespace      
// @description    Add a quote button to make quote content easy when reply topic
// @include        http://www.douban.com/review/*
// @include        http://www.douban.com/group/topic/*
// @include        http://www.douban.com/forum/*
// ==/UserScript==

function xpath(query) {
  return document.evaluate(query, document, null,
      XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
}

function generateQuoteLink(td, txtarea) {
  var d = document.createElement('div');
  d.align = 'right';
  var spn = document.createElement('span');
  spn.style.cssText = 'float: right;';
  spn.className = 'act';
  var alink = document.createElement('a');
  alink.href = "javascript:;";
  alink.innerHTML = decodeURI("%E5%BC%95%E7%94%A8");
  alink.addEventListener('click', function(event) {
     var str = "";
     var maxlength = 250;
     var node = td.childNodes[1];
     while (node != null && str.length <= maxlength) {
        if (node.nodeType==3) str += node.textContent;
        if (node.nextSibling != null &&
            node.nextSibling.nextSibling != null &&
            node.nextSibling.nextSibling.nodeType==1 &&
            node.nextSibling.nextSibling.tagName.toLowerCase() == 'div') break;
        node = node.nextSibling;
     }
     if (str.length > maxlength) str = str.substring(0, maxlength)+"...";
     str = td.getElementsByTagName('h3')[0].firstChild.childNodes[1].text + " " +
           td.getElementsByTagName('h3')[0].firstChild.childNodes[0].textContent+ 
           '\n' + str;//name
     if (txtarea.value!="") txtarea.value += "\n";
     txtarea.value += "-----------------------------------";
     txtarea.value += "\n";
     txtarea.value += str;
     txtarea.value += "\n";
     txtarea.value += "-----------------------------------";
  }, true);
  spn.appendChild(alink);
  d.appendChild(spn);
  return d;
}

results = xpath('//TEXTAREA[@name = "rv_comment"]');
if (results.snapshotLength==0) return;
txtarea = results.snapshotItem(0);
arr = document.getElementsByTagName('h3');
for (var i=0; i<arr.length; ++i) {
	if (arr[i].childNodes.length!=0) {
  	d = generateQuoteLink(arr[i].parentNode, txtarea);
  	arr[i].parentNode.appendChild(d);
  }
}