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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。
Ekde
// ==UserScript==
// @name 知乎重排for印象笔记
// @namespace http://tampermonkey.net/
// @version 0.12
// @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/*
// @include https://www.zhihu.com/pin/*
// @run-at document-idle
// @grant GM.xmlHttpRequest
// @grant GM_xmlhttpRequest
// @grant GM_registerMenuCommand
// @grant GM_getValue
// @grant GM_setValue
// @connect lens.zhihu.com
// @supportURL https://twchen.github.io/zhihu-formatter
// ==/UserScript==
/**
* 更新日志
* v0.7
* 1. 在<noscript>里搜索图片链接
* 2. 点击图片改变分辨率
*
* v0.8
* 1. 改变图片的鼠标指针样式，使之更明显
* 2. 把图片提示改为中文
*
* v0.9
* 1. 保留专栏封面照片。点击可删除。
*
* v0.10
* 1. 适应新专栏封面
* 2. 缩小专栏标题字体
* 3. 新功能：重排后可返回原页面
*
* v0.10.2
* 1. 适应新导航栏
*
* v0.11
* 1. 图片居中
* 2. 保留figcaption
* 3. 增加默认图片质量配置
*
* v0.12
* 1. 新增设置界面
* 2. 支持重排想法
*
*/
(function() {
"use strict";
class Settings {
constructor() {
this.settings = {};
this.div = null;
GM_registerMenuCommand("设置", this.show.bind(this));
}
getValue(key) {
return GM_getValue(key, this.settings[key].defaultOption);
}
setValue(key, value) {
GM_setValue(key, value);
}
add_setting(key, desc, options, defaultOption) {
this.settings[key] = {
desc,
options,
defaultOption
};
}
show() {
this.close();
this.div = document.createElement("div");
Object.assign(this.div.style, {
position: "fixed",
top: "50%",
left: "50%",
transform: "translate(-50%, -50%)",
backgroundColor: "white",
border: "1px solid black",
borderRadius: "5px",
padding: "0.8rem",
width: "24rem",
zIndex: 999
});
for (let key in this.settings) {
if (this.div.children.length > 0) {
this.div.appendChild(document.createElement("br"));
}
const { desc, options } = this.settings[key];
const descSpan = document.createElement("span");
descSpan.innerText = `${desc}: `;
this.div.appendChild(descSpan);
// the setting is binary
if (options.length === 2 && options.includes(true) && options.includes(false)) {
const checkbox = document.createElement("input");
checkbox.type = "checkbox";
if (this.getValue(key)) {
checkbox.setAttribute("checked", "checked");
}
checkbox.onchange = event => {
this.setValue(key, event.target.checked);
};
this.div.appendChild(checkbox);
} else {
for (let option of options) {
const radio = document.createElement("input");
const id = `${key}-${option}`;
radio.id = id;
radio.type = "radio";
radio.setAttribute("name", key);
radio.setAttribute("value", option);
if (this.getValue(key) === option) {
radio.setAttribute("checked", "checked");
}
radio.onchange = () => {
this.setValue(key, option);
};
this.div.appendChild(radio);
const label = document.createElement("label");
label.setAttribute("for", id);
label.innerText = option;
this.div.appendChild(label);
}
}
}
if (this.div.children.length > 0) {
const closeBtn = document.createElement("span");
closeBtn.innerText = "X";
closeBtn.onclick = this.close.bind(this);
Object.assign(closeBtn.style, {
position: "absolute",
top: "0.5rem",
right: "0.5rem",
cursor: "pointer"
});
this.div.appendChild(closeBtn);
document.body.appendChild(this.div);
}
}
close() {
if (this.div !== null) {
this.div.remove();
this.div = null;
}
}
}
const root = document.querySelector("#root");
const httpRequest =
typeof GM_xmlhttpRequest === "undefined" ? GM.xmlHttpRequest : GM_xmlhttpRequest;
function addLinkToNav(onclick) {
const nav = document.querySelector(".AppHeader-Tabs");
const li = nav.querySelector("li").cloneNode(true);
const a = li.querySelector("a");
a.href = "#";
a.text = "重排";
a.onclick = event => {
event.preventDefault();
onclick();
};
nav.appendChild(li);
}
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() {
root.style.display = "none";
let div = document.querySelector("#formatted");
if (div !== null) {
div.remove();
}
const showMoreBtn = document.querySelector("button.Button.QuestionRichText-more");
if (showMoreBtn !== null) showMoreBtn.click();
const title = document.querySelector("h1.QuestionHeader-title").cloneNode(true);
const detail = document.querySelector("div.QuestionHeader-detail").cloneNode(true);
const question = document.createElement("div");
question.appendChild(title);
question.appendChild(detail);
Object.assign(question.style, {
backgroundColor: "white",
margin: "0.8rem 0",
padding: "0.2rem 1rem 1rem",
borderRadius: "2px",
boxShadow: "0 1px 3px rgba(26,26,26,.1)"
});
const answer = document.querySelector("div.Card.AnswerCard").cloneNode(true);
// remove non-working actions
const actions = answer.querySelector(".ContentItem-actions");
actions.parentNode.removeChild(actions);
div = document.createElement("div");
div.id = "formatted";
div.appendChild(question);
div.appendChild(answer);
// insert after root
root.after(div);
window.history.pushState("formatted", "");
postprocess(div);
}
function formatZhuanlan() {
root.style.display = "none";
let div = document.querySelector("#formatted");
if (div !== null) {
div.remove();
}
const header = document.querySelector("header.Post-Header").cloneNode(true);
const title = header.querySelector(".Post-Title");
Object.assign(title.style, {
fontSize: "1.5rem",
fontWeight: "bold",
marginBottom: "1rem"
});
const post = document.querySelector("div.Post-RichText").cloneNode(true);
const time = document.querySelector("div.ContentItem-time").cloneNode(true);
const topics = document.querySelector("div.Post-topicsAndReviewer").cloneNode(true);
div = document.createElement("div");
div.id = "formatted";
let titleImage = document.querySelector(".TitleImage");
if (titleImage) {
titleImage = titleImage.cloneNode(true);
titleImage.style.maxWidth = "100%";
titleImage.style.cursor = "pointer";
titleImage.title = "点击删除图片";
titleImage.onclick = () => {
div.removeChild(titleImage);
};
div.appendChild(titleImage);
}
div.append(header, post, time, topics);
div.style.margin = "1rem";
root.after(div);
window.history.pushState("formatted", "");
postprocess(div);
}
function formatPin() {
let div = document.querySelector("#formatted");
if (div !== null) {
div.remove();
}
const pinItem = document.querySelector(".PinItem");
div = pinItem.cloneNode(true);
div.id = "formatted";
div.style.margin = "1rem";
const remainContents = div.querySelectorAll(".PinItem-remainContentRichText");
remainContents.forEach(remainContent => {
// assume only one .PinItem-remainContentRichText has a video or some images, otherwise the code may not run correctly.
if (remainContent.querySelector(".RichText-video")) {
// show video
replaceVideosByLinks(remainContent);
}
const preview = remainContent.querySelector(".Image-Wrapper-Preview");
if (preview) {
// show all images
replaceThumbnailsByRealImages(preview);
}
});
if (
settings.getValue("keepComments") === "否" ||
div.querySelector(".CommentListV2") === null ||
div.querySelector(".CommentListV2").children.length === 0
) {
const comments = div.querySelector(".Comments-container");
comments.style.display = "none";
} else {
// hide the comment editor
const commentEditor = div.querySelector(".CommentEditorV2--normal");
commentEditor.style.display = "none";
// get all remaining comments
if (settings.getValue("keepComments") === "此页后全部") {
const commentsClone = div.querySelector(".CommentListV2");
(async () => {
while (true) {
const comments = await getNextPageComments(root);
if (comments === null) break;
for (let i = 0; i < comments.children.length; ++i) {
commentsClone.appendChild(comments.children[i].cloneNode(true));
}
}
})();
}
}
root.after(div);
root.style.display = "none";
window.history.pushState("formatted", "");
}
function replaceThumbnailsByRealImages(preview) {
const realImages = document.createElement("div");
const thumbnails = document.querySelectorAll("#root .Thumbnail-Wrapper");
thumbnails.forEach(thumbnail => {
const img = getRealImage(thumbnail);
if (img !== null) realImages.appendChild(img);
});
try {
const surplusSign = document.querySelector("#root .Thumbnail-Surplus-Sign");
if (surplusSign !== null) {
const numLeft = parseInt(surplusSign.innerText);
thumbnails[thumbnails.length - 1].click();
const imageGallery = document.querySelector(".ImageGallery-Inner");
const arrowRight = document.querySelector("a.ImageGallery-arrow-right");
for (let i = 0; i < numLeft; ++i) {
arrowRight.click();
const img = getRealImage(imageGallery);
if (img !== null) realImages.appendChild(img);
}
const close = document.querySelector("a.ImageGallery-close");
close.click();
}
} catch (error) {
console.error(`Error retrieving remaining images: ${error.message}`);
}
realImages.querySelectorAll("img").forEach(img => {
Object.assign(img.style, {
maxWidth: "100%",
display: "block",
margin: "1rem auto"
});
});
preview.replaceWith(realImages);
}
function getNextPageComments(root) {
return new Promise((resolve, reject) => {
const nextPage = root.querySelector(".PaginationButton-next");
if (nextPage === null) {
resolve(null);
} else {
nextPage.click();
const startTime = new Date().getTime();
const id = setInterval(() => {
if (new Date().getTime() - startTime > 3000) {
reject(new Error("Timeout"));
return;
}
const comments = root.querySelector(".CommentListV2");
if (comments === null) return;
clearInterval(id);
resolve(comments);
}, 100);
}
});
}
function replaceVideosByLinks(el) {
const videoDivs = el.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: ${error.message}`);
}
if (!href) {
return;
}
const a = document.createElement("a");
a.href = href;
Object.assign(a.style, {
color: "#337ab7",
textDecoration: "underline"
});
if (!title && !thumbnail) {
a.innerText = "视频: " + href;
} else {
const span = document.createElement("span");
span.style.display = "block";
span.innerText = "视频: ";
a.appendChild(span);
if (title) {
span.innerText += title;
}
if (thumbnail) {
const img = document.createElement("img");
img.src = thumbnail;
img.style.maxWidth = "100%";
a.appendChild(img);
}
}
div.replaceWith(a);
});
}
function getVideoInfo(id) {
return new Promise((resolve, reject) => {
httpRequest({
method: "GET",
url: `https://lens.zhihu.com/api/videos/${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: ${error.message}`);
}
}
function getAttrValOfAnyDOM(root, attr) {
const el = root.querySelector(`*[${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 getAttrValOfAnyDOM(div, attr) || getAttrValFromNoscript(div, attr);
}
function getRealImage(el) {
const imgSrcAttrs = ["data-original", "data-actualsrc", "data-src", "src"];
let imgSrcs = imgSrcAttrs
.map(attr => getAttrVal(el, attr))
.filter(src => src != null && !src.toLowerCase().startsWith("data:"));
// find unique filenames
const filename2Src = {};
imgSrcs.forEach(src => {
const groups = src.split("/");
const filename = groups[groups.length - 1];
filename2Src[filename] = src;
});
imgSrcs = Object.values(filename2Src);
if (imgSrcs.length > 0) {
const img = document.createElement("img");
const suffix = quality2Suffix[settings.getValue("imageQuality")];
let i = 0;
while (i < imgSrcs.length && !imgSrcs[i].includes(suffix)) ++i;
if (i === imgSrcs.length) i = 0;
img.src = imgSrcs[i];
if (imgSrcs.length > 1) {
img.onclick = () => {
if (++i === imgSrcs.length) i = 0;
img.src = imgSrcs[i];
};
img.onmouseover = event => {
hint.style.display = "block";
hint.style.top = event.clientY + "px";
hint.style.left = event.clientX + 3 + "px";
};
img.onmouseleave = () => {
hint.style.display = "none";
};
img.style.cursor = "pointer";
}
return img;
} else {
return null;
}
}
// enable all gifs and load images
function loadAllFigures(el) {
const figures = el.querySelectorAll("figure");
figures.forEach(figure => {
const gifDiv = figure.querySelector("div.RichText-gifPlaceholder");
if (gifDiv !== null) {
enableGIF(gifDiv);
} else {
const img = getRealImage(figure);
if (img) {
const el = figure.querySelector("img") || figure.querySelector("noscript");
if (el) {
el.replaceWith(img);
} else {
figure.prepend(img);
}
}
}
const imgs = figure.querySelectorAll("img");
imgs.forEach(img => {
Object.assign(img.style, {
maxWidth: "100%",
display: "block",
margin: "auto"
});
});
});
}
function postprocess(el) {
replaceVideosByLinks(el);
loadAllFigures(el);
}
function injectToNav() {
const url = window.location.href;
if (url.includes("zhuanlan")) addBtnToNav();
else if (url.includes("answer")) addLinkToNav(formatAnswer);
else addLinkToNav(formatPin);
}
injectToNav();
const hint = document.createElement("div");
hint.innerText = "点击图片换不同分辨率（如有）";
Object.assign(hint.style, {
display: "none",
position: "fixed",
backgroundColor: "white",
border: "1px solid black"
});
document.body.append(hint);
window.addEventListener("popstate", function(event) {
const div = document.querySelector("#formatted");
if (event.state === "formatted") {
root.style.display = "none";
div.style.display = "block";
} else {
root.style.display = "block";
div.style.display = "none";
}
});
const settings = new Settings();
settings.add_setting("imageQuality", "默认图片质量", ["原始", "高清"], "原始");
settings.add_setting(
"keepComments",
"重排想法时保留评论",
["否", "仅此页", "此页后全部"],
"仅此页"
);
const quality2Suffix = {
原始: "_r.",
高清: "_hd."
};
})();