Alternative Search Engines 2.2

Adds quick links to run the same search on Google, Bing, DuckDuckGo, Yandex, Mojeek.

Dovrai installare un'estensione come Tampermonkey, Greasemonkey o Violentmonkey per installare questo script.

You will need to install an extension such as Tampermonkey to install this script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

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Dovrai installare un gestore di script utente per installare questo script.

(Ho già un gestore di script utente, lasciamelo installare!)

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name        Alternative Search Engines 2.2
// @description Adds quick links to run the same search on Google, Bing, DuckDuckGo, Yandex, Mojeek.
// @namespace   https://mekineer.com
// @license     GPL-3.0-or-later
// @version     0.4.0.1
// @grant       none
//
// Overlay script with multi-engine jump links. Adapted/finished with help from ChatGPT (Nova, GPT-5.1 Thinking).
// @match       *://www.google.*/*
// @match       *://duckduckgo.com/*
// @match       *://www.bing.com/*
// @match       *://yandex.*/*
// @match       *://www.mojeek.com/*
// ==/UserScript==

(function () {
  'use strict';

  const BOX_ID = 'alt-search-engines-overlay';

  // Engines + their base URL + query parameter name
  const ENGINES = {
    Google:     { url: 'https://www.google.com/search',   param: 'q'    },
    Bing:       { url: 'https://www.bing.com/search',     param: 'q'    },
    DuckDuckGo: { url: 'https://duckduckgo.com/',         param: 'q'    },
    Yandex:     { url: 'https://yandex.com/search/',      param: 'text' },
    Mojeek:     { url: 'https://www.mojeek.com/search',   param: 'q'    }
  };

  function detectCurrentEngine() {
    const h = location.hostname;
    if (/google\./.test(h))       return 'Google';
    if (/bing\.com$/.test(h))     return 'Bing';
    if (/duckduckgo\.com$/.test(h)) return 'DuckDuckGo';
    if (/yandex\./.test(h))       return 'Yandex';
    if (/mojeek\.com$/.test(h))   return 'Mojeek';
    return null;
  }

  function getCurrentQuery() {
    const url = new URL(location.href);
    const hostEngine = detectCurrentEngine();
    if (!hostEngine) return '';

    // Map which param we should read from the current engine
    let paramName = 'q';
    if (hostEngine === 'Yandex') paramName = 'text';

    // try param; fall back to other common ones just in case
    return (
      url.searchParams.get(paramName) ||
      url.searchParams.get('q') ||
      url.searchParams.get('text') ||
      ''
    );
  }

  function openOnEngine(engineName) {
    const cfg = ENGINES[engineName];
    if (!cfg) return;

    const q = getCurrentQuery();
    if (!q) return;

    const url = new URL(cfg.url);
    url.searchParams.set(cfg.param, q);
    window.open(url.toString(), '_self');
  }

  function createOverlay() {
    if (document.getElementById(BOX_ID)) return;

    const current = detectCurrentEngine();
    if (!current) return;

    const box = document.createElement('div');
    box.id = BOX_ID;

    // Basic styling: top-right overlay, small & unobtrusive
    Object.assign(box.style, {
      position: 'fixed',
      top: '6px',
      right: '10px',           // change to 'left' if you prefer
      zIndex: '2147483647',
      fontSize: '11px',
      fontFamily: 'Verdana, sans-serif',
      background: 'rgba(255,255,255,0.92)',
      color: '#555',
      border: '1px solid rgba(0,0,0,0.15)',
      borderRadius: '4px',
      padding: '3px 6px',
      boxShadow: '0 1px 3px rgba(0,0,0,0.15)',
      lineHeight: '1.4',
      whiteSpace: 'nowrap'
    });

    const label = document.createElement('span');
    label.textContent = 'Search also: ';
    box.appendChild(label);

    const engineNames = Object.keys(ENGINES);
    engineNames.forEach((name, idx) => {
      if (name === current) return; // don’t link to itself

      const link = document.createElement('a');
      link.href = 'javascript:void(0)';
      link.textContent = name;
      link.style.cursor = 'pointer';
      link.style.margin = '0 2px';
      link.style.textDecoration = 'underline';
      link.style.color = '#1a73e8';

      link.addEventListener('click', (e) => {
        e.preventDefault();
        openOnEngine(name);
      });

      box.appendChild(link);

      // Separator dot between links
      const remaining = engineNames.filter(n => n !== current);
      if (idx < engineNames.length - 1 && name !== remaining[remaining.length - 1]) {
        const sep = document.createElement('span');
        sep.textContent = '·';
        sep.style.margin = '0 2px';
        box.appendChild(sep);
      }
    });

    document.body.appendChild(box);
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', createOverlay);
  } else {
    createOverlay();
  }
})();