Adds favicons next to Google search results. Also works for startpage.com
目前为
// ==UserScript==
// @name FaviconizeGoogle
// @namespace http://userscripts.org/users/89794 (joeytwiddle)
// @description Adds favicons next to Google search results. Also works for startpage.com
// @homepage https://gf.qytechs.cn/en/scripts/7664-faviconizegoogle
// @downstreamURL http://userscripts.org/scripts/source/48636.user.js
// @license ISC
// @version 1.4.2
// @include /https?:\/\/((www\.)?|encrypted\.)google\.[a-z]{2,3}(\.[a-z]{2})?\/(search|webhp|\?gws_rd|\?gfe_rd)?.*/
// @include /https?:\/\/(www\.|[a-z0-9-]*\.)?startpage.com\/.*/
// @grant none
// ==/UserScript==
var placeFaviconByUrl = false; // The little green link below the article title
var placeFaviconAfter = false; // Display after the link instead of before it
var placeFaviconInsideLink = false; // Makes the favicon clickable but may also get underlined
var placeFaviconOffTheLeft = true; // Makes the favicon sit out to the left of the main column (not on startpage)
var iconSize = 2;
var centraliseIconVertically = iconSize <= 2; // For larger icon sizes, we top-align with the text
// With thanks to:
// - NV
// - darkred
// - SirCumference
// Some alternatives/remixes:
// - https://github.com/NV/faviconize-google.js (Chrome extension)
// - https://gf.qytechs.cn/en/scripts/12395-google-favicons (works with Endless Google)
// - https://gist.github.com/Sir-Cumference/223d36cbec6473b0e6927e5c50c11568 (very short code, @match works with Greasemonkey)
// 2018-07-31 Dropped support for news.google.com, because it is now linking to local URLs, instead of to external websites.
// TODO: The relative positioning of the icon appears a bit off for sub-links of the main result.
// DONE: Provided more options where to place favicon: by the link or by the
// url, before or after, inside or outside the link. However in my opinion
// they all suck except the default. ;)
// Broken images would be messy, but Firefox seems to hide them after a while
// anyway. We do still see the gap from the image's padding though!
// It might be desirable to check each image actually exists/loads, or remove it.
// Is that possible, without making an http request ourselves?
// Third-party host URL detection is implemented leniently, and accordingly
// hostname extraction implemented aggressively, which results in favicons
// being given to unexpected things like bookmarklets which contain a site url.
if (document.location.host.match(/\bstartpage\b/)) {
// This feature doesn't work on startpage!
placeFaviconOffTheLeft = false;
}
if (document.location.search.match(/&tbm=nws/)) {
// This feature doesn't work on Google News search
placeFaviconOffTheLeft = false;
// The layout is a bit too cramped for large favicons
iconSize = 0.9;
}
function createFaviconFor (url) {
var host = url.replace(/^[^/]*:\/\//, '').replace(/\/.*$/, '');
// if (host == document.location.host) {
// return null;
// }
// Use protocol (http/https) of current page, to avoid mixed-content warnings/failures.
//var protocol = document.location.protocol.replace(/:$/, '');
//console.log("[FaviconizeGoogle.user.js] protocol:" ,protocol);
// We may fail to access favicons, e.g. if the site only offers http, or due to CORS restrictions.
// But it is still worth tryiing, because the fallback (google's s2) offers only low-res icons.
var urlsToTry = [
'//' + host + '/favicon.ico',
'//' + host + '/favicon.png',
'//www.google.com/s2/favicons?domain=' + host,
];
// Google's cache will sometimes provide a favicon we would have missed, e.g. if the site uses .png instead of .ico. Thanks to NV for suggesting this, and to Google.
var img = document.createElement('IMG');
//img.src = protocol + '://'+host+'/favicon.ico';
//img.src = '//g.etfv.co/http://" + host; // As suggested by decembre
//img.width = '16';
//img.height = '16';
img.className = 'favicon';
img.border = 0;
img.style.display = 'none';
var tryNextExtension = function () {
if (urlsToTry.length === 0) {
removeListeners();
return;
}
img.src = urlsToTry.shift();
};
var showImage = function () {
img.style.display = '';
removeListeners();
};
var removeListeners = function () {
img.removeEventListener('load', showImage);
img.removeEventListener('error', tryNextExtension);
};
img.addEventListener('load', showImage, false);
img.addEventListener('error', tryNextExtension, false);
tryNextExtension();
return img;
}
function getGoogleResultsLinks () {
// var links = document.evaluate("//a[@class='l']",document,null,6,null);
// var links = filterListBy(document.links, function(x){ return x.className=='l'; } );
// var links = document.links.filter( function(x){ return x.className=='l'; } );
/*
return filterListBy(document.getElementsByTagName('a'), function (x) {
// Most pages show links with class 'l'
// But on pages where the first result has an indented block of sub-pages,
// the indented links have class 'l' but all the other links have no class but parent class 'r'
return x.className === 'l' || x.parentNode.className === 'r';
});
*/
// For Google search
// a.l
// a.fl are small one-line sub-results. Search "squeak" and see the Wikipedia result.
// a.B0IOdd are lists of images which appear underneath a section on the News tab (inside .card-section)
var links = document.querySelectorAll('.g a:not(.fl):not(.B0IOdd)');
// For news.google.com
if (links.length === 0) {
//links = document.querySelectorAll('a.article:not(.esc-thumbnail-link)');
links = document.querySelectorAll('article > a');
}
// For startpage.com
if (links.length === 0) {
links = document.querySelectorAll('.clk > a');
}
// Remove any links which contain only one image
links = [...links].filter(link => {
if (link.childNodes.length === 1 && link.childNodes[0].tagName === 'IMG') {
return false;
}
return true;
});
return links;
}
var style = document.createElement('STYLE');
var padSide = (placeFaviconAfter ? 'left' : 'right');
var leftPadding = 1.2 * iconSize + 0.5;
// We can try to centralise the icon with the text
// Or we can top-align the icon with the text (better for larger icon sizes)
var topPadding = centraliseIconVertically ? 0.5 + 0.07 - iconSize / 2 : 0;
var extra = placeFaviconOffTheLeft ? 'position: absolute; left: -' + leftPadding + 'em; top: ' + topPadding + 'em;' : '';
style.innerHTML = ".favicon { padding-" + padSide + ": " + (iconSize / 2) + "em; vertical-align: middle; width: " + iconSize + "em; height: " + iconSize + "em; padding-bottom: 0.2em; " + extra + "}";
document.getElementsByTagName('head')[0].appendChild(style);
function updateFavicons () {
var links = getGoogleResultsLinks();
// Allows it to work on any sites:
if (links.length === 0) {
links = document.getElementsByTagName("A");
}
// console.log("Got links = "+links.snapshotLength);
// for (var i=0;i<links.snapshotLength;i++) {
// var link = links.snapshotItem(i);
for (var i = 0; i < links.length; i++) {
var link = links[i];
// if (link.href.match('^javascript:') || link.href.match('^#')) {
// continue;
// }
var targetUrl = link.getAttribute('data-href') || link.href;
//// Skip relative and same-host links:
if (targetUrl.match(/^[/]/) || targetUrl.match("://" + document.location.host)) {
continue;
}
//console.log("[faviconizegoogle.user.js] link.getAttribute(data-faviconized):" ,link.getAttribute("data-faviconized"));
if (link.getAttribute("data-faviconized")) {
// Already faviconized
console.log("[faviconizegoogle.user.js] Skipping");
continue;
}
link.setAttribute("data-faviconized", "yes");
var img = createFaviconFor(targetUrl);
// <cite> is for google, .url is for startpage
var targetNode = (placeFaviconByUrl && link.parentNode.parentNode.querySelector('cite, .url') || link);
if (placeFaviconInsideLink) {
if (placeFaviconAfter) {
targetNode.appendChild(img);
} else {
targetNode.insertBefore(img, targetNode.firstChild);
}
} else {
if (placeFaviconAfter) {
targetNode.parentNode.insertBefore(img, targetNode.nextSibling);
} else {
targetNode.parentNode.insertBefore(img, targetNode);
}
}
}
}
// TODO: Use MutationObserver instead?
var last_srg = null;
var results_count = -1;
function checkForUpdate () {
// #ires was needed for the News tab, which doesn't have a .srg. Perhaps we could use ires for all tabs.
var new_srg = document.getElementsByClassName("srg")[0] || document.getElementById("ires") || document.querySelector('.web_regular_results');
//console.log("[FaviconizeGoogle.user.js] last_srg:" ,last_srg);
//console.log("[faviconizegoogle.user.js] new_srg:" ,new_srg);
var new_results_count = getGoogleResultsLinks().length;
if (new_srg !== last_srg || new_results_count !== results_count) {
//console.log("Page change detected!");
updateFavicons();
last_srg = new_srg;
results_count = new_results_count;
} else {
//console.log("Pages are the same:", last_srg, new_srg);
}
setTimeout(checkForUpdate, 1000);
}
setTimeout(checkForUpdate, 100);
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