erome.com video length

Duration of video on erome.com

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         erome.com video length
// @namespace    https://github.com/drdre1/
// @icon         https://www.erome.com/favicon.ico
// @version      1.0
// @description  Duration of video on erome.com
// @author       drdre1
// @match        https://www.erome.com/*
// @grant        GM.xmlHttpRequest
// ==/UserScript==

(function () {

  const onLength = function (milliseconds, a, video) {
    let s = milliseconds / 1000;
    const h = Math.floor(s / 3600);
    s -= h * 3600;
    const m = Math.floor(s / 60);
    s = Math.floor(s - m * 60);

    const span = document.createElement('span');
    span.appendChild(document.createTextNode(` ${h > 0 ? `${h}:` : ''}${h > 0 ? m.toString().padStart(2, '0') : m}:${s.toString().padStart(2, '0')}`));
    a.parentNode.insertBefore(span, a.nextElementSibling || a);

    if (video && video.dataset) {
      s = parseInt(milliseconds / 1000);
      video.dataset.length = s;
      const slider = document.getElementById('slider_min_length');
      if (slider) {
        slider.max = Math.max(slider.max, s);
      }
    }
  };

  const videoLength = function (url, a, video) {
    const storedTime = window.localStorage.getItem(`$vl#${url}`);
    if (storedTime && !isNaN(parseInt(storedTime))) {
      const t = parseInt(storedTime);
      if (t >= 0) {
        return onLength(t, a, video);
      }
    }

    const xmlHttpRequest = GM.xmlHttpRequest({
      url,
      method: 'GET',
      headers: {
        Accept: 'video/webm,video/ogg,video/*;q=0.9,application/ogg;q=0.7,audio/*;q=0.6,*/*;q=0.5',
        Referer: 'https://www.erome.com/',
        Range: 'bytes=0-140',
      },
      responseType: 'blob',
      onprogress(response) {
        if (Math.max(response.loaded, response.total) > 150) {
          xmlHttpRequest.abort();
        }
      },
      onload(response) {
        const m = response.responseText.match(/\x03.*\xe8/);
        if (m) {
          const i = response.responseText.indexOf(m[0]) + m[0].length;
          const s = response.responseText.substring(i, i + 4);
          const ms = Array.from(s)
            .map((c) => c.charCodeAt(0))
            .map((value, index, values) => value * Math.pow(256, values.length - index - 1))
            .reduce((a, b) => a + b);
          window.localStorage.setItem(`$vl#${url}`, ms);
          return onLength(ms, a, video);
        }
      },
    });
  };

  const showSlider = function () {
    const div = document.body.appendChild(document.createElement('div'));
    div.setAttribute('style', 'position:fixed; right:0px; top:50px');
    div.innerHTML = 'Minimal length:<br>';
    const output = div.appendChild(document.createElement('output'));
    output.setAttribute('id', 'slider_min_length_output');
    const slider = div.appendChild(document.createElement('input'));
    slider.setAttribute('id', 'slider_min_length');
    slider.setAttribute('type', 'range');
    slider.setAttribute('step', '1');
    slider.setAttribute('min', '1');
    slider.setAttribute('max', '5');
    slider.setAttribute('value', '1');
    slider.addEventListener('input', () => {
      const minS = parseInt(slider.value);
      if (minS > 1) {
        const m = parseInt(slider.value / 60);
        const s = minS - m * 60;
        output.textContent = `${m}:${s > 9 ? s : (`0${s}`)}`;
        document.querySelectorAll('.video')
          .forEach((vc) => {
            const video = vc.querySelector('.player video');
            if (video && 'length' in video.dataset && video.dataset.length < minS) {
              vc.style.display = 'none';
            } else {
              vc.style.display = '';
            }
          });
      } else {
        output.textContent = 'Off';
        document.querySelectorAll('.video')
          .forEach((vc) => {
            vc.style.display = '';
          });
      }
    });
  };

  let minNumberOfVideos = 0;
  const showOnlyVideosThumbs = function () {
    document.querySelectorAll('.album')
      .forEach((album) => {
        const e = album.querySelector('.album-videos');
        if (e && e.textContent && parseInt(e.textContent) && parseInt(e.textContent) >= minNumberOfVideos) {
          return;
        }
        album.style.display = 'none';
      });
  };

  const showOnlyVideos = function (ev) {
    if (ev) {
      ev.preventDefault();
    }
    minNumberOfVideos++;
    if (document.location.hash.match(/onlyvideos=(\d+)/)) {
      document.location.hash = document.location.hash.replace(/onlyvideos=\d+/, `onlyvideos=${minNumberOfVideos}`);
    } else {
      document.location.hash = `#onlyvideos=${minNumberOfVideos}`;
    }
    if (document.location.pathname.startsWith('/a/')) {
      showOnlyVideosAlbum();
    } else {
      showOnlyVideosThumbs();
    }
    document.querySelectorAll('a[href]')
      .forEach((a) => {
        a.hash = `#onlyvideos=${minNumberOfVideos}`;
      });
  };

  const showOnlyVideosAlbum = function () {
    document.querySelectorAll('.media-group')
      .forEach((mediaGroup) => {
        if (!mediaGroup.querySelector('.video')) {
          mediaGroup.remove();
        }
      });
  };

  const disableShowOnlyVideos = function (ev) {
    if (ev) {
      ev.preventDefault();
    }
    document.location.hash = '';
    document.location.reload();
  };

  if (document.querySelectorAll('video')
    .length > 1) {
    showSlider();
  }
  window.requestAnimationFrame(() => {
    document.querySelectorAll('.player video source')
      .forEach((source) => {
        const url = source.src;
        const a = document.createElement('a');
        a.href = url;
        a.appendChild(document.createTextNode(url));
        a.target = '_blank';
        source.parentNode.parentNode.parentNode.insertBefore(a, source.parentNode.parentNode);
        videoLength(url, a, source.parentNode);
      });
  });

  if (document.querySelector('#app-navbar-collapse ul.navbar-right')) {
    const a = document.querySelector('#app-navbar-collapse ul.navbar-right')
      .appendChild(document.createElement('li'))
      .appendChild(document.createElement('a'));
    a.href = `#onlyvideos=${minNumberOfVideos + 1}`;
    a.title = 'Right click to disable';
    a.addEventListener('click', showOnlyVideos);
    a.addEventListener('contextmenu', disableShowOnlyVideos);
    a.appendChild(document.createTextNode('only videos'));
  }

  if (document.location.hash.match(/onlyvideos=(\d+)/)) {
    const n = parseInt(document.location.hash.match(/onlyvideos=(\d+)/)[1]);
    for (let i = 0; i < n; i++) {
      showOnlyVideos();
    }
  }
}());