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Reddit - Load 'Continue this thread' inline

Changes 'Continue this thread' links to insert the linked comments into the current page

当前为 2016-04-01 提交的版本，查看 最新版本。

// ==UserScript==
// @name           Reddit - Load 'Continue this thread' inline
// @description    Changes 'Continue this thread' links to insert the linked comments into the current page
// @author         James Skinner <[email protected]> (http://github.com/spiralx)
// @namespace      http://spiralx.org/
// @version        1.7.0
// @icon           data:image/png;base64,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
// @icon64         data:image/png;base64,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
// @match          *://*.reddit.com/r/*/comments/*
// @grant          none
// @run-at         document-end
// @require        https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.js
// @require        https://gf.zukizuki.org/scripts/7602-mutation-observer/code/mutation-observer.js
// ==/UserScript==

/* jshint asi: true, esnext: true */
/* global jQuery, MutationSummary */

; (function userScript($) {
  'use strict'

  const NORMAL = 'font-weight: normal; text-decoration: none; color: black'
  const ERROR = 'font-weight: bold; color: #f4f'
  const LINK = 'color: #05f; text-decoration: underline'
  const BOLD = 'font-weight: bold'
  const BLUE = 'color: #05f'

  const EXPAND_ICON = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAADZklEQVR42tVXv08TURyvIdbYjg0DCQuaLjA4Y5rQ61lo0jASHIQFEnUQ/BGDkqJiAj00YkuPa0Fw4S8gYYDgxEYTdHaDgAMDDQUGBunz+7m79t6112srFPEln6Tpfd/3+3nfX+/7HI7/bQmCcDsQCNwnjIqBwEcAv/EfvtXFaCgUahQFYSwgCD/bu/tZa7/EWh4vseahZRUtj5bU//ANMpAN+XyNF2H4BpR1dIZPvINJ5n6/wxzTjDk+F2FaxyfG3OM7zDuQZNijEiEdf2VcFMVb5NYfbX2TzBnNaIZiOuIWiJkJOSczDHuhA7pqjfMdQQztNz1fMwzDyIyOhAXy33gy5JGmZ2vML3btQ2fVJxdog+d12jCeNyprcE3tMc/YpgkuaddMJmZ4wzOSVklU9ERPT4+Tkuh74eRxzvgsQQFy7OHwS/Ztfd2E4RcjrGHmVCOZ4LzBeQK6YaP86SlpEDeTcZkznmTsWirHJElixUuWZXY9ntXkZvV9M+ZwtD2YYLBhnfFUNshcp5Qx3J43ToYdKcIcEZi3IZDIanJJfR8fDj0xO+6FTyxLFMxQaoXTJ4qMzxO+EIEFGwJyVpNLMcMTCXMovAOKtRfQQNQ650+vmI07FonAog0BJavJzXEkZLMX3O921GZV0l7bu/ssTp+jmJ+R2wkLhK/A7/IEkoeaHOSxTzkjPbkSL8CWqSLQx9FK+dO7Puyp2T5FxoqxsrJSQgCVYCULHS5pz0SgtS8KAr08gVH0dp6A502arZPS8y7o8IyljTAQAdwdsGkkIN1ozcPLZgJv60SA8qD5yTKDzatD4J+HwDIJp3bV9ionEiWwIraxsWEpO0Q6XNFd+yRESViVYYN8St3tiBoMQSGkgMOyZXgz/kuTgzz2xY+0+6FSGV5uI9oubUR6K454B5XLasURy8vI3xk+VqefOl5G/mD42FduXtSu44l6X8eRKgaS1YoDCSqBR8WB5Olq5YEEKxgMtmB88rzatB/JqE8UQHVuP5JtqiMZdNcwlHbtFzxxrqF0tbahlO8NFK8t5IQzelDdWB7jx/KDfMy3qj65VU4gaZC5KFH3+Lb9wwR1TjIoNezB3ooxr2ahbKAMDeQudTG00uKnWRv9h2/60yziu4inWdnQUB8vfpyKfn9vzS+gq7D+AAlDQCI1XwNKAAAAAElFTkSuQmCC'
  
  // --------------------------------------------------------------------

  const units = (v, s) => `${v}${s}`
  
  const pluralise = (w, n) => w + (n !== 1 ? 's' : '')
  
  function* flatten (arr) {
    for (let x of arr) {
      if (Array.isArray(x)) {
        yield* (flatten(x))
      }
      else {
        yield x
      }
    }
  }

  // --------------------------------------------------------------------
  
  $.fn.extend({
    spinner (options) {
      options = Object.assign({}, $.fn.spinner.defaults, options)

      const $spinner = $('<div class="pulsar-horizontal"></div>')
        .css({
          padding: units(options.size * 0.25, 'px'),
          height: units(options.size, 'px')
        })

      const total_duration = (options.steps + 1) * options.step_duration

      for (let i = 0; i < options.steps; i++) {
        const delay = i * options.step_duration

        $('<div></div>')
          .css({
            width: units(options.size, 'px'),
            height: units(options.size, 'px'),
            backgroundColor: options.colour,
            animationDuration: units(total_duration, 's'),
            animationDelay: units(delay, 's')
          })
          .appendTo($spinner)
      }

      if (options.replace) {
        this.empty()
      }

      return this.append($spinner)
    },
    
    log (name, ...extras) {
      const title = [ `%c${name || '$'}%c : %c${this.length}%c ${pluralise('item', this.length)}`, BOLD, NORMAL, BLUE, NORMAL ]
      
      if (this.length > 0 || extras.length > 0) {
        console.group.apply(console, title)

        if (this.length > 0) {
          console.info(this)
        }
        extras.forEach(extra => {
          console.log(extra)
        })

        console.groupEnd()
      }
      else {
        console.info.apply(console, title)
      }
      
      return this
    }
  })

  $.fn.spinner.defaults = {
    replace: false,
    steps: 3,
    size: 16,
    colour: 'white',
    step_duration: 0.4
  }

  // --------------------------------------------------------------------

  function loadComments ($span, $target, ...ids) {
    const urls = ids.map(id => postUrl + id)

    /*
    console.group(`%cloadComments%c(${ids.join(', ')})`, BOLD, NORMAL)
    console.info($span[0].outerHTML)
    console.log(`%c${urls.join('\n')}%c`, LINK, NORMAL)
    console.groupEnd()
    */

    $span.spinner({
      colour: '#28f',
      size: 24,
      step_duration: 0.25,
      replace: true
    })
    
    const pageRequests = urls.map(url => {
      return $.get(url)
        .then(
          data => $('.nestedlisting > .thing', data).next().andSelf().get(),
          console.warn.bind(console)
        )
    })
    
    $.when(...pageRequests).then((...$children) => {
      const $all = $([...flatten($children)])
      
      if ($all.length === 2) {
        $all
          .find('> .entry > .usertext.border')
          .log('.border')
          .removeClass('border')
      }

      $all
        .replaceAll($target)
        .find('.usertext.border .usertext-body')
          .css('animation', 'fadenewpost 4s ease-out 4s both')
    })
  }

  // --------------------------------------------------------------------

  function processDeepThreadSpans (deepThreadSpans) {
    const $deepThreadSpans = $(deepThreadSpans)
      .filter(':not([data-comment-ids])')
    
    // console.info(`processDeepThreadSpans: processing ${$deepThreadSpans.length}/${deepThreadSpans.length} deep thread spans`)
    
    $deepThreadSpans.each(function() {
      const $span = $(this),
            $a = $span.children('a'),
            cid = $a[0].pathname.split('/').pop()
      
      const $target = $span.parents(`.thing[data-fullname=t1_${cid}]`)
      
      $span
        .attr('data-comment-ids', cid)
        .addClass('expand-inline')
    
      $a.one('click', event => {
        loadComments($span, $target, cid)
        return false
      })
    })
  }

  // --------------------------------------------------------------------
  
  function processMoreCommentsSpans(moreCommentsSpans) {
    const $moreCommentsSpans = $(moreCommentsSpans)
      .filter(':not([data-comment-ids])')
    
    // console.info(`processMoreCommentsSpans: processing ${$moreCommentsSpans.length}/${moreCommentsSpans.length} more comment spans`)
    
    $moreCommentsSpans.each(function() {
      const $span = $(this),
            $target = $span.closest('.thing'),
            $a = $span.children('a'),
            cids = $a.attr('onclick').split(', ')[3].slice(1, -1).split(',')
      
      $span
        .attr('data-comment-ids', cids.join(','))
        .addClass('expand-inline')

      $a
        .removeAttr('onclick')
        .one('click', event => {
          loadComments($span, $target, ...cids)
          return false
        })
    })
  }
  
  // --------------------------------------------------------------------
  
  const rootUrl = `https://${location.hostname}/`
  const postUrl = $('.thing.link > .entry a.comments').prop('href')
  
  // console.info(`%cSite:%c %c${rootUrl}%c\n%cPost:%c %c${postUrl}%c`, BOLD, NORMAL, LINK, NORMAL, BOLD, NORMAL, LINK, NORMAL)
  
  // --------------------------------------------------------------------

  const observer = new MutationSummary({
    callback(summaries) {
      const deepThreadSpans = summaries.shift().added,
            moreCommentsSpans = summaries.shift().added
      
      // console.log(`Added ${deepThreadSpans.length} deep thread spans and ${moreCommentsSpans.length} more comment spans`)
      
      processDeepThreadSpans(deepThreadSpans)
      processMoreCommentsSpans(moreCommentsSpans)
    },
    rootNode: document.body,
    queries: [
      { element: 'span.deepthread' },
      { element: 'span.morecomments' }
    ]
  })

  // To process spans in the HTML source
  processDeepThreadSpans($('span.deepthread'))
  processMoreCommentsSpans($('span.morecomments'))

  // --------------------------------------------------------------------
  
  $(document.body).append(`<style type="text/css">
    .expand-inline {
      display: block;
      padding: 0;
    }
    .expand-inline:after {
      display: none !important;
    }
    .expand-inline a {
      display: block;
      background: transparent url(${EXPAND_ICON}) no-repeat center left;
      padding-left: 40px;
      height: 40px;
      line-height: 40px;
      font-size: 1.4rem !important;
      font-weight: normal !important;
      vertical-align: middle;
      text-align: left;
    }
    .expand-inline a:hover {
      background-color: rgba(0, 105, 255, 0.05);
      text-decoration: none;
    }

    .pulsar-horizontal {
      display: inline-block;
    }
    .pulsar-horizontal > div {
      display: inline-block;
      border-radius: 100%;
      animation-name: pulsing;
      animation-timing-function: ease-in-out;
      animation-iteration-count: infinite;
      animation-fill-mode: both;
    }

    @keyframes pulsing {
      0%, 100% {
        transform: scale(0);
        opacity: 0.5;
      }
      50% {
        transform: scale(1);
        opacity: 1;
      }
    }

    @keyframes fadenewpost {
      0% {
        background-color: #ffc;
        padding-left: 5px;
      }
      100% {
        background-color: transparent;
        padding-left: 0;
      }
    }
  </style>`)

})(jQuery)

jQuery.noConflict(true)