Shows the ratings from Goodreads on Amazon book pages
当前为
"use strict";
// ==UserScript==
// @name Amazon - Goodreads metadata
// @namespace bricemciver
// @description Shows the ratings from Goodreads on Amazon book pages
// @author Brice McIver
// @license MIT
// @version 0.0.2
// @match https://amazon.com/*
// @match https://*.amazon.com/*
// @match https://amazon.co.uk/*
// @match https://*.amazon.co.uk/*
// @match https://amazon.ca/*
// @match https://*.amazon.ca/*
// @match https://amazon.de/*
// @match https://*.amazon.de/*
// @match https://amazon.fr/*
// @match https://*.amazon.fr/*
// @match https://amazon.es/*
// @match https://*.amazon.es/*
// @match https://amazon.it/*
// @match https://*.amazon.it/*
// @match https://amazon.co.jp/*
// @match https://*.amazon.co.jp/*
// @match https://amazon.cn/*
// @match https://*.amazon.cn/*
// @match https://amazon.com.br/*
// @match https://*.amazon.com.br/*
// @match https://amazon.in/*
// @match https://*.amazon.in/*
// @match https://amazon.com.mx/*
// @match https://*.amazon.com.mx/*
// @match https://amazon.com.au/*
// @match https://*.amazon.com.au/*
// @grant GM_xmlhttpRequest
// @grant GM.xmlHttpRequest
// @icon https://www.google.com/s2/favicons?sz=64&domain=amazon.com
// ==/UserScript==
{
const asinRegex = /\/([A-Z0-9]{10})/;
const findASIN = () => {
const asinArray = [];
const array = asinRegex.exec(document.location.pathname);
const asin = array && array.length > 1 ? array[1] : '';
// eslint-disable-next-line no-console
console.log(`ASIN in pathname: ${asin}`);
// determine if book
const dp = document.getElementById('dp');
if (dp === null || dp === void 0 ? void 0 : dp.className.includes('book')) {
asinArray.push(asin);
}
else {
// see if we are on a page with multiple books
const images = document.getElementsByTagName('img');
const coverImages = Array.from(images).filter(item => item.classList.contains('cover-image'));
coverImages.forEach(image => {
const parentElem = image.parentElement;
if (parentElem instanceof HTMLAnchorElement) {
const link = parentElem.href;
const ciArray = asinRegex.exec(link);
const ciAsin = ciArray && ciArray.length > 1 ? ciArray[1] : '';
// eslint-disable-next-line no-console
console.log(`ASIN on book image: ${ciAsin}`);
asinArray.push(ciAsin);
}
});
}
return asinArray;
};
const findInsertPoint = () => {
// on book page
const insertPoint = [];
const reviewElement = document.getElementById('averageCustomerReviews');
if (reviewElement) {
insertPoint.push(reviewElement);
}
else {
// check for SHOP NOW button with review stars above. Return array
const reviewArray = document.getElementsByClassName('pf-image-w');
insertPoint.push(...Array.from(reviewArray));
}
return insertPoint;
};
const insertElement = (isbn, insertPoint) => {
GM.xmlHttpRequest({
method: 'GET',
url: `https://www.goodreads.com/book/isbn/${isbn}`,
onload(response) {
const node = new DOMParser().parseFromString(response.responseText, 'text/html');
// get styles we need
const head = document.getElementsByTagName('head')[0];
const styles = Array.from(node.getElementsByTagName('link')).filter(item => item.rel === 'stylesheet');
styles.forEach(item => {
// add goodreads to links
item.href = item.href.replace('amazon', 'goodreads');
head.appendChild(item);
});
const meta = node.getElementById('ReviewsSection');
if (meta) {
// find our div
const rating = meta.querySelector('div.RatingStatistics');
if (rating) {
// replace links
Array.from(rating.getElementsByTagName('a')).forEach(item => {
item.href = response.finalUrl + item.href.replace(item.baseURI, '');
return item;
});
// replace styles
Array.from(rating.getElementsByTagName('span')).forEach(item => {
item.classList.replace('RatingStar--medium', 'RatingStar--small');
item.classList.replace('RatingStars__medium', 'RatingStars__small');
});
Array.from(rating.getElementsByTagName('div'))
.filter(item => item.classList.contains('RatingStatistics__rating'))
.forEach(item => {
item.style.marginBottom = '-0.8rem';
item.style.fontSize = '2.2rem';
});
// create label div
const labelCol = document.createElement('div');
labelCol.classList.add('a-column', 'a-span12', 'a-spacing-top-small');
const labelRow = document.createElement('div');
labelRow.classList.add('a-row', 'a-spacing-small');
labelRow.textContent = 'Goodreads';
const lineBreak = document.createElement('br');
labelCol.appendChild(labelRow);
labelRow.appendChild(lineBreak);
labelRow.appendChild(rating);
insertPoint.appendChild(labelCol);
}
}
},
});
};
const main = () => {
const ASIN = findASIN();
const insertPoint = findInsertPoint();
for (let i = 0; i < ASIN.length && i < insertPoint.length; i++) {
const insertPointElement = insertPoint[i].parentElement;
if (insertPointElement) {
insertElement(ASIN[i], insertPointElement);
}
}
};
main();
}
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