Adds the first StackOverflow and/or Reddit answer to your search result
// ==UserScript==
// @name Stack Pop
// @namespace https://codeberg.org/happybits/stack-pop
// @license MIT
// @version 1.3
// @description Adds the first StackOverflow and/or Reddit answer to your search result
// @author happybits
// @match https://www.google.com/search*
// @icon
// @grant GM_xmlhttpRequest
// ==/UserScript==
// This is a userscript StackPop that is supposted to run by Tampermonkey when the user enters a google search
try {
log("StackPop 1.3")
let rso
let stackPopDiv
go()
async function go() {
// Wait for the google search to appear in the DOM
rso = await waitFor("#rso")
// Inject StackPop before the google search result
stackPopDiv = document.createElement("div")
stackPopDiv.id = "stack-pop"
rso.before(stackPopDiv)
// Find the first search result that leads to Stack Overflow
insertIfFound(
{
urlStartWith: "https://stackoverflow.com",
questionSelector: page => page.querySelector("h1").textContent,
answerSelector: page => page.querySelector(".answer .s-prose").innerHTML,
}
)
// Find the first search result that leads to Reddit
insertIfFound(
{
urlStartWith: "https://www.reddit.com",
questionSelector: page => page.querySelector("h1").textContent,
answerSelector: page => page.querySelector(".Comment").querySelector(".RichTextJSON-root").innerHTML,
}
)
}
// Insert StackPop if part of the search result (ex StackOverflow or Reddit)
function insertIfFound({ urlStartWith, questionSelector, answerSelector}) {
const firstHit = firstLinkThatStartsWith(urlStartWith)
// If any, get the answer inject it to the search page
if (firstHit) {
// HTTP call using Tampermonkey's built in function
GM_xmlhttpRequest({
method: "GET",
url: firstHit,
onload: function (response) {
// Build a DOM from the text-response and parse the question and the first answer
const page = new DOMParser().parseFromString(response.responseText, 'text/html');
const question = questionSelector(page) // page.querySelector(questionSelector).textContent
const firstAnswerContent = answerSelector(page) // page.querySelector(answerSelector).innerHTML
// Create the StackPop widget
const widget = document.createElement("div")
const backgroundColor = "#f4ad25"
widget.innerHTML = `
<style>${stackPopStyling}</style>
<div style="border:solid 2px ${backgroundColor}; margin: 1em 0; overflow: auto;">
<a href="${firstHit}" style="text-decoration:none">
<div style="cursor:pointer; background-color:${backgroundColor}; color:white; padding:0.5em; font-size: 1.5em">
${encodeHTMLEntities(question)}
</div>
</a>
<div style="padding:0 1.5em 0.5em 1.5em;">
${firstAnswerContent}
</div>
</div>
`
// Add the possiblitiy to copy code to the clipboard
addCopyCodeButtons(widget)
// Add widget below
stackPopDiv.append(widget)
}
});
}
}
// Add the possiblitiy to copy code to the clipboard
function addCopyCodeButtons(element) {
element.querySelectorAll("pre").forEach(preElement => {
const elementHasCode = preElement.firstChild.nodeName.toLowerCase() === "code"
if (elementHasCode) {
const codeToCopy = preElement.querySelector("code").innerText
preElement.append(copyIcon(codeToCopy))
}
});
}
// Get the first link in the Google search result area that starts with a specific string
function firstLinkThatStartsWith(urlPart) {
const googleResults = Array.from(rso.children)
return googleResults
.filter(result => result.querySelector("a")?.href)
.map(result => result.querySelector("a").href)
.find(link => link.startsWith(urlPart))
}
// CSS Styling for StackPop box
const stackPopStyling = `
#stack-pop {
width: 700px;
}
#stack-pop li {
margin-left: 1.5em;
list-style: normal;
}
#stack-pop pre {
background-color: #eee;
padding: 1em;
position:relative;
}
#stack-pop .copy-icon{
position:absolute;
right:4px;
top:4px;
height:33px;
width:33px;
opacity:0.5;
cursor:pointer;
}
#stack-pop .copy-icon:hover{
opacity:1;
}
#stack-pop code {
background-color: #eee;
}
#stack-pop img {
max-width: 100%;
}
`
// This is a generic method that can be used to select element that may take some time to appear in the DOM
// The second parameter "scope" is optional, of you want to limit the query
function waitFor(selector, scope) {
const pause = 10
let maxTime = 10000
return new Promise(resolve => {
function inner() {
if (maxTime <= 0) {
throw "Timeout for select " + selector
}
const element = (scope ?? document).querySelector(selector)
if (element) {
resolve(element)
return
}
maxTime -= pause
setTimeout(inner)
}
inner()
})
}
// A simple log function which shows with a TAMPER-prefix
function log(...message) {
console.log('%c TAMPER ', 'color: white; background-color: #61dbfb', ...message);
}
// Create a copy icon (used for copying code to the clipboard)
function copyIcon(textToCopyIfClicked) {
const img = document.createElement("img")
img.className = "copy-icon"
img.title = "Copy to clipboard"
img.src = "data:image/png;base64, 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"
img.onclick = () => copyTextToClipboard(textToCopyIfClicked)
return img
}
// Copy text to clipboard (surprise)
function copyTextToClipboard(text) {
navigator.clipboard.writeText(text).then(function () {
log('Copied to clipboard');
}, function (err) {
throw err
});
}
// Encode and decode string to and from HTML
function encodeHTMLEntities(rawStr) {
return rawStr.replace(/[\u00A0-\u9999<>\&]/g, ((i) => `&#${i.charCodeAt(0)};`));
}
function decodeHTMLEntities(rawStr) {
return rawStr.replace(/&#(\d+);/g, ((_, dec) => `${String.fromCharCode(dec)}`));
}
// Unexpected errors is shown in red
} catch (exception) {
console.log('%c TAMPER ', 'color: white; background-color: red', exception);
}
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