重新排版知乎的问答或者专栏，使“印象笔记·剪藏”只保存需要的内容。
目前為
// ==UserScript==
// @name 知乎重排for印象笔记
// @namespace http://tampermonkey.net/
// @version 0.7
// @description 重新排版知乎的问答或者专栏，使“印象笔记·剪藏”只保存需要的内容。
// @author twchen
// @include https://www.zhihu.com/question/*/answer/*
// @include https://zhuanlan.zhihu.com/p/*
// @run-at document-idle
// @grant GM.xmlHttpRequest
// @grant GM_xmlhttpRequest
// @connect lens.zhihu.com
// @supportURL https://twchen.github.io/zhihu-formatter
// ==/UserScript==
// Changelog
// v0.7
// 1. Search images links in "noscript" tag.
// 2. Click on an image to change its resolution.
(function () {
"use strict";
const body = document.querySelector("body");
const httpRequest = typeof GM_xmlhttpRequest === "undefined" ? GM.xmlHttpRequest : GM_xmlhttpRequest;
function addLinkToNav() {
const nav = document.querySelector("nav.AppHeader-nav");
const a = document.createElement("a");
a.href = "#";
a.text = "重排";
a.classList.add("AppHeader-navItem");
a.onclick = event => {
event.preventDefault();
formatAnswer();
};
nav.appendChild(a);
}
function addBtnToNav() {
const pageHeader = document.querySelector("div.ColumnPageHeader-Button");
const btn = document.createElement("button");
btn.setAttribute("type", "button");
btn.innerText = "重新排版";
btn.classList.add("Button", "Button--blue");
btn.style.marginRight = "1rem";
btn.onclick = () => {
formatZhuanlan();
};
pageHeader.prepend(btn);
}
function formatAnswer() {
const showMoreBtn = document.querySelector(
"button.Button.QuestionRichText-more"
);
if (showMoreBtn !== null) showMoreBtn.click();
const title = document.querySelector("h1.QuestionHeader-title");
const detail = document.querySelector("div.QuestionHeader-detail");
const answer = document.querySelector("div.Card.AnswerCard");
const div = document.createElement("div");
div.appendChild(title);
div.appendChild(detail);
Object.assign(div.style, {
backgroundColor: "white",
margin: "0.8rem 0",
padding: "0.2rem 1rem 1rem",
borderRadius: "2px",
boxShadow: "0 1px 3px rgba(26,26,26,.1)"
});
removeAllChildren(body);
body.appendChild(div);
body.appendChild(answer);
postprocess();
}
function formatZhuanlan() {
const header = document.querySelector("header.Post-Header");
const title = header.querySelector(".Post-Title");
Object.assign(title.style, {
fontSize: "2rem",
fontWeight: "bold",
marginBottom: "1rem"
});
const post = document.querySelector("div.Post-RichText");
const time = document.querySelector("div.ContentItem-time");
const topics = document.querySelector("div.Post-topicsAndReviewer");
const div = document.createElement("div");
div.append(header, post, time, topics);
div.style.margin = "1rem";
removeAllChildren(body);
body.appendChild(div);
postprocess();
}
function replaceVideosByLinks() {
const videoDivs = document.querySelectorAll("div.RichText-video");
videoDivs.forEach(async div => {
let href, title, thumbnail;
try {
const attr = div.attributes["data-za-extra-module"];
const videoId = JSON.parse(attr.value).card.content.video_id;
href = "https://www.zhihu.com/video/" + videoId;
const info = await getVideoInfo(videoId);
title = info.title;
thumbnail = info.thumbnail;
} catch (error) {
console.error(`Error getting video info: ${error.message}`);
}
if (!href) {
return;
}
const a = document.createElement("a");
a.href = href;
Object.assign(a.style, {
color: "#337ab7",
textDecoration: "underline"
});
if (!title && !thumbnail) {
a.innerText = "视频: " + href;
} else {
const span = document.createElement("span");
span.style.display = "block";
span.innerText = "视频: ";
a.appendChild(span);
if (title) {
span.innerText += title;
}
if (thumbnail) {
const img = document.createElement("img");
img.src = thumbnail;
a.appendChild(img);
}
}
div.replaceWith(a);
});
}
function getVideoInfo(id) {
return new Promise((resolve, reject) => {
httpRequest({
method: "GET",
url: `https://lens.zhihu.com/api/videos/${id}`,
headers: {
"Content-Type": "application/json",
Origin: "https://v.vzuu.com",
Referer: `https://v.vzuu.com/video/${id}`
},
onload: response => {
try {
const json = JSON.parse(response.responseText);
const title = json.title;
const thumbnail = json.cover_info.thumbnail;
resolve({
title,
thumbnail
});
} catch (error) {
reject(error);
}
},
onerror: response => {
reject({
message: `Status: ${response.status}. StatusText: ${
response.statusText
}`
});
}
});
});
}
function enableGIF(div) {
try {
const src = div.querySelector("img").src;
const img = document.createElement("img");
const i = src.lastIndexOf(".");
img.src = src.slice(0, i) + ".gif";
div.replaceWith(img);
} catch (error) {
console.error(`Error enabling gif: ${error.message}`);
}
}
function getAttributeValueOfAnyDOM(root, attr) {
const el = root.querySelector(`*[${attr}]`);
return el ? el.getAttribute(attr) : null;
}
function getAttrValFromNoscript(div, attr) {
const nos = div.querySelector('noscript');
let value = null;
if (nos) {
const content = nos.textContent || nos.innerText || nos.innerHTML;
if (content) {
const pattern = `${attr}="(.*?)"`;
const re = new RegExp(pattern);
const groups = content.match(re);
if (groups) {
value = groups[1];
}
}
}
return value;
}
function getAttrVal(div, attr) {
return getAttributeValueOfAnyDOM(div, attr) || getAttrValFromNoscript(div, attr);
}
// enable all gifs and load images
function loadAllFigures() {
const figures = document.querySelectorAll("figure");
const imgSrcAttrs = ['data-original', 'data-src', 'src', 'data-actualsrc'];
figures.forEach(figure => {
const gifDiv = figure.querySelector("div.RichText-gifPlaceholder");
if (gifDiv !== null) {
enableGIF(gifDiv);
} else {
const imgSrcs = imgSrcAttrs.map(attr => getAttrVal(figure, attr)).filter(src => src != null);
if (imgSrcs.length > 0) {
const img = document.createElement("img");
img.src = imgSrcs[0];
img.onclick = (() => {
let i = 0;
return () => {
++i;
img.src = imgSrcs[i % imgSrcs.length];
};
})();
img.title = 'Click to change resolution';
removeAllChildren(figure);
figure.appendChild(img);
}
}
});
}
function postprocess() {
replaceVideosByLinks();
loadAllFigures();
}
function removeAllChildren(el) {
while (el.firstChild) {
el.removeChild(el.firstChild);
}
}
function injectToNav() {
const url = window.location.href;
if (url.includes("zhuanlan")) {
addBtnToNav();
} else {
addLinkToNav();
}
}
injectToNav();
})();