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hide douban feeds

I dont care.
As of 2014-08-27. See the latest version.
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// ==UserScript==
// @name       hide douban feeds
// @namespace  http://houkanshan.github.io/
// @version    0.2
// @description  I dont care.
// @match      http://www.douban.com/*
// @require     http://libs.baidu.com/underscore/1.3.3/underscore-min.js
// @require    http://libs.baidu.com/jquery/2.0.3/jquery.min.js
// @copyright  2012+, You
// ==/UserScript==

var blockedCSS = (function () {/*
.blocked-feed .mod {
  height: 54px;
  overflow: hidden;
  opacity: 0.1;
  margin-bottom: 14px;
}
.blocked-feed .action-block:before {
  content: '+';
}
.action-block:before {
  content: '×';
  float: right;
  color: #eee;
  margin-top: -10px;
  height: 10px;
  width: 10px;
  display: block;
  cursor: pointer;
}
*/}).toString().match(/[^]*\/\*([^]*)\*\/\}$/)[1];
insertCSS(blockedCSS)


var blockWords = ['月饼', '发工资']
var blockIdKey = 'blocked_feed_ids'
var blockIds = localStorage[blockIdKey] ? JSON.parse(localStorage[blockIdKey]) : []

var listSel = '.stream-items'
var feedSel = '[data-sid]'
var idBlockedSel = '[data-sid="' + blockIds.join('"], [data-sid="') + '"]'

console.info(idBlockedSel)

var list = $(listSel)
var feeds = list.find(feedSel)
var blockedFeeds = list.find(idBlockedSel)


blockedFeeds.add(feeds.filter(function(i, el) {
  return _.some(blockWords, function(word) {
    return el.textContent.match(word)
  })
}))

blockedFeeds.addClass('blocked-feed')
feeds.prepend('<span class="action-block">')

list.on('click', '.action-block', function(e){
  var el = $(e.currentTarget)
  var feed = el.closest(feedSel)
  var sid = feed.data('sid')
  var hasBlocked = feed.is('.blocked-feed')

  if (hasBlocked) {
    blockIds = _.without(blockIds, sid)
    localStorage[blockIdKey] = JSON.stringify(blockIds)
    feed.removeClass('blocked-feed')
  } else {
    blockIds.push(sid)
    localStorage[blockIdKey] = JSON.stringify(blockIds)
    feed.addClass('blocked-feed')
  }
})

list.on('click', '.blocked-feed', function(e) {
  var el = $(e.currentTarget)
  el.removeClass('blocked-feed')
})



function insertCSS(css, options) {

    var elem = document.createElement('style');
    elem.setAttribute('type', 'text/css');

    if ('textContent' in elem) {
      elem.textContent = css;
    } else {
      elem.styleSheet.cssText = css;
    }

    var head = document.getElementsByTagName('head')[0];
    if (options && options.prepend) {
        head.insertBefore(elem, head.childNodes[0]);
    } else {
        head.appendChild(elem);
    }
};
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