// ==UserScript==
// @name Nico dl
// @namespace http://tampermonkey.net/
// @version 0.2
// @description 下载N站视频 | Download video from nicovideo.jp
// @author ctrn43062
// @include *//www.nicovideo.jp/watch/sm*
// @icon https://www.google.com/s2/favicons?domain=nicovideo.jp
// @grant none
// @note 2022-2-10 添加下载视频高清封面功能
// @license MIT
// @downloadURL none
// ==/UserScript==
const IS_HLS_DISABLED = 'DMCSource.isHLSDisabled';
const DOWNLOAD_SVG = ``
const COVER_SVG = ``
function createButton(svg, title, disabled = false) {
const button = document.createElement('button');
button.className = 'ActionButton ControllerButton PlayerRepeatOnButton';
button.innerHTML = svg;
button.setAttribute('data-title', title);
disabled && button.setAttribute('disabled', disabled);
return button;
}
function insertButtonToVideoControllBar(button) {
const playbackRateButton = document.querySelector('.ActionButton.PlaybackRateButton');
const wrapper = playbackRateButton.parentElement;
wrapper.insertBefore(button, playbackRateButton);
}
function createDownloadVideoButton() {
const downloadButton = createButton(DOWNLOAD_SVG, '下载视频', true);
insertButtonToVideoControllBar(downloadButton);
return {
setSrc: function(src) {
downloadButton.removeAttribute('disabled');
downloadButton.onclick = function() {
window.open(src)
};
},
disable: function() {
downloadButton.setAttribute('disabled', true);
}
}
}
function createDownloadCoverButton() {
const button = createButton(COVER_SVG, '下载封面');
insertButtonToVideoControllBar(button);
const getCoverURL = () => {
let original = '';
document.querySelectorAll('[type="application/ld+json"][data-react-helmet]').forEach(item => {
const json = JSON.parse(item.textContent);
if (json['@type'] === 'VideoObject') {
json['thumbnailUrl'].forEach(thumb => {
if (thumb.indexOf('original') !== -1) {
original = thumb;
}
})
}
})
return original;
}
const updateCoverURL = function() {
const cover_url = getCoverURL();
button.removeAttribute('disabled');
button.onclick = () => {
/*
const download = document.createElement('a');
download.setAttribute('download', '');
download.setAttribute('target', '_blank');
download.href = cover_url;
download.click();
download.remove();
*/
open(cover_url);
}
}
updateCoverURL();
return {
updateCoverURL: updateCoverURL,
disable: function() {
button.setAttribute('disabled', true);
}
}
}
(function() {
'use strict';
const isHttp = localStorage.getItem(IS_HLS_DISABLED);
if (isHttp === null || isHttp === 'false') {
localStorage.setItem(IS_HLS_DISABLED, 'true');
location.reload();
}
const downloadCoverButton = createDownloadCoverButton();
const downloadVideoButton = createDownloadVideoButton();
const observer = new MutationObserver(mutationsList => {
for (let mutation of mutationsList) {
const target = mutation.target;
if (mutation.attributeName === 'src') {
if (target.src) {
downloadVideoButton.setSrc(target.src);
downloadCoverButton.updateCoverURL();
} else {
downloadVideoButton.disable();
downloadCoverButton.disable();
}
}
}
});
const video = document.querySelector('#MainVideoPlayer > video');
observer.observe(video, {
attributes: true
});
})();