Save a local copy of the items in your Amazon.com Wishlist
// ==UserScript==
// @name Amazon Wishlist Export
// @namespace https://greasyfork.org/en/users/11592-max-starkenburg
// @description Save a local copy of the items in your Amazon.com Wishlist
// @include http*://*.amazon.*/gp/registry/wishlist/*
// @version 1.1
// @grant none
// ==/UserScript==
var items = [], totalPages;
var url = document.URL;
// If you're looking at somebody else's list and it doesn't have the list identifier in the expected way, get it another way
if (url.indexOf("&cid=") > -1) { // "cid" itself doesn't seem to be that list's ID
url = document.querySelector(".wl-friend-list.selected a").href; // I'm pretty sure this only is an issue on others' lists
}
url = url.substring(0,url.lastIndexOf("/") + 1);
// Get the items for the rest of the pages in the list
var pagination = document.getElementsByClassName("a-pagination");
if (pagination.length > 0) {
var pageLinks = pagination[0].getElementsByTagName("li");
totalPages = parseInt(pageLinks[pageLinks.length - 2].textContent); // second to last list item (before "next ->")
} else {
totalPages = 1;
}
// This ajax function iterated over various times since an asynchronous request return the correct results
// and a single synchronous request was freezing the browser.
var data = "Title\tAuthor(s) and Format\tItem URL\n";
function getPages(i) {
if (i < totalPages) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url + '?page=' + (i + 1), true); // get the corresponding page's HTML
xhr.onload = function() {
getItems(xhr.responseText, i);
}
xhr.send();
} else {
// If we're done getting all the pages' items, create a TSV file and offer it for download
for (var i=0; i < items.length; i++) {
data = data + items[i].title + "\t" + items[i].authorAndFormat + "\t" + items[i].itemURL + "\n";
}
document.getElementById("gm-spinner").setAttribute("style","display: none;");
data = data.replace(/​/g,""); // for some reason there's a bunch of these characters in here
// The following code thanks to Stack Overflow user zanetu at http://stackoverflow.com/a/34148831/5285945
var a = document.createElement("a");
a.href = "data:text/tab-separated-values;charset=utf-8," + encodeURIComponent(data);
// Get this specific list's name (since users can have multiple lists) and append it to the download file
var listName = document.querySelector(".wl-friend-list.selected span, .wl-list.selected span").firstChild.textContent.trim().replace(/[^A-Za-z0-9]/g,"");
a.download = "AmazonWishlist-" + listName + ".tsv";
document.getElementsByTagName("body")[0].appendChild(a);
a.click();
}
}
// Replicate an Amazon button
var button = document.createElement("span");
button.className = "a-button a-button-primary";
button.setAttribute("style","cursor: pointer; float: right; margin-top: 1em;");
button.innerHTML = '<span class="a-button-inner"><span class="a-button-text">Export this wishlist as a TSV file</span></span>'
var head = document.getElementById("wl-list-info");
head.insertBefore(button, head.firstChild);
// On clicking the button, go get all the items on the different pages
button.addEventListener("click", function() {
button.className += " a-button-disabled";
var spinner = document.createElement("img");
spinner.src = "https://images-na.ssl-images-amazon.com/images/G/01/amazonui/loading/loading-2x-gray._V1_.gif";
spinner.id = "gm-spinner";
spinner.setAttribute("style","float: right;")
button.parentNode.insertBefore(spinner, button.nextSibling);
getPages(0);
});
function getItems(responseText, i) {
// Capture the item's title, and author info if it's there.
// Some extra consideration given if it's not a linked element (e.g. a manually added item).
// Todo: other fields such as item quantity, comments, etc.
var itemsRegEx = / id="itemName[^>]+"([^>]+)">([^<]+)<\/(?:a|span)>[^>]+(?:<\/h5>|<a[^<]+<\/a>)([^<]*)</gm;
// The following loop is based on that by htw at http://stackoverflow.com/a/844049/752122
while (item = itemsRegEx.exec(responseText)) {
var itemInfo = {};
var itemURL = item[1].trim();
if (itemURL.indexOf("/") == 0) {
itemURL = location.protocol + "//" + location.host + itemURL;
} else {
itemURL = "";
}
itemInfo.itemURL = itemURL;
itemInfo.title = item[2].trim();
itemInfo.authorAndFormat = item[3].trim();
items.push(itemInfo);
}
getPages(i+1);
}