// ==UserScript==
// @name           ad_entry_blocker_mod.user.js
// @namespace      http://d.hatena.ne.jp/edvakf/
// @description    Remove ad items
// @include        http://reader.livedoor.com/reader/
// @include        http://reader.livedoor.com/public/*
// @include        http://fastladder.com/reader/
// ==/UserScript==
// Inspired by the original script http://blog.endflow.net/?p=58
// The "IE OK?" lines **might** work for IE as well

(function(){
  /////////////// configurations ////////////////
  var cfg = {
      // judgement patterns of entry title
      patterns: [/^[\s【]*(AD|PR|ＡＤ|ＰＲ)[\s】]*[:：]/i],
      // advertisement entries style (apply this style to title link <a>)
      style: ['color:#aaa;','font-size:12px;'],
      // skip ad-entry
      skip: true
  }
  ///////////////////////////////////////////////

	var w = (typeof unsafeWindow == 'undefined') ? window : unsafeWindow;

  w.LDR_addStyle('.item.blocked h2 > a',cfg.style);
  w.LDR_addStyle('.item.blocked > .padding > :not(.item_header)',['display:none;']);// for non-IE
  //w.LDR_addStyle('.item.blocked .item_info, .item.blocked .item_body, .item.blocked .item_footer',['display:none;']); // IE OK

  w.blockItem = function(self){
    w.addClass(self.parentNode.parentNode.parentNode.parentNode.parentNode,'blocked');
  };
  w.entry_widgets.add('ad_entry_block', function(feed, item){
    if(cfg.patterns.some(function(re){return re.test(item.title)})){
      return '<img alt="" style="height:1px;width:1px;border:none;" src="data:,hoge" onerror="blockItem(this)" />';//for non-IE
      //return '<img alt="" style="height:1px;width:1px;border:none;" src="/favicon.ico" onerror="blockItem(this)" onload="blockItem(this)" />';//IE OK
      //return '<img alt="" style="height:1px;width:1px;border:none;" src="http://0.0.0.0/" onerror="blockItem(this)" />';//IE OK
    }else{
      return '';
    }
  }, 'LDR Ad-Entry Blocker');
  
  if(cfg.skip){  
    w.addEventListener('load',function(){
      var j_func = w.Keybind._keyfunc['j'];
      w.Keybind.add('j|enter', function(){
        j_func();
        if(w.Control.next_item_offset()==null) return;
        var info = w.get_active_item(true);
        w.hasClass(info.element.parentNode.parentNode.parentNode, 'blocked') && arguments.callee() ;
      });
      var k_func = w.Keybind._keyfunc['k'];
      w.Keybind.add('k|shift+enter', function(){
        k_func();
        var info = w.get_active_item(true);
        w.hasClass(info.element.parentNode.parentNode.parentNode, 'blocked') 
          && ( (w.Control.prev_item_offset()==null)? k_func() : arguments.callee() );
      });
    },false);
  }
})();