Open Links in NEW BACKGROUND Tab

Open links (esp. from different domains) in NEW BACKGROUND tab
当前为 2022-12-24 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name            Open Links in NEW BACKGROUND Tab
// @author          Jerry
// @description     Open links (esp. from different domains) in NEW BACKGROUND tab
// @grant           GM_openInTab
// @include         http*://*
// @namespace       https://greasyfork.org/users/28298
// @run-at          document-start
// @version         0.1
// @license         GNU GPLv3
// ==/UserScript==


// source:
// https://greasyfork.org/en/scripts/20694-all-links-open-all-in-new-background-tab/code
// https://greasyfork.org/en/scripts/12367-open-links-in-new-tab/code

attachHandler([].slice.call(document.getElementsByTagName('a')));

setMutationHandler(document, 'a', function(nodes) {
    attachHandler(nodes);
    return true;
});

function attachHandler(nodes) {
    nodes.forEach(function(node) {
        // href will be auto expanded with window.location.origin, such as href="#" --> "https://example.com/#"
        // search-engine-a: more compatible with Search Engine Switcher script
        if ( (node.target != '_blank') && (!node.href.includes("javascript:")) && (!node.href.startsWith(window.location.origin)) && (node.className!="search-engine-a") ) {
            node.onclick = clickHandler;
            node.addEventListener('click', clickHandler);
        }
    });
}

function clickHandler(e) {
    if (e.button > 1)
        return;
    e.preventDefault();
    e.stopPropagation();
    e.stopImmediatePropagation();
    // GM_openInTab(this.href, e.button || e.ctrlKey);
    GM_openInTab(this.href, true); // open in background
}




// https://greasyfork.org/scripts/12228/code/setMutationHandler.js
// ==UserScript==
// @name          setMutationHandler
// @description   MutationObserver wrapper to wait for the specified CSS selector
// @namespace     wOxxOm.scripts
// @author        wOxxOm
// @grant         none
// @version       3.0.2
// ==/UserScript==

function setMutationHandler(target, selector, handler, options) {
// or    setMutationHandler(selector, handler, options) {
// or    setMutationHandler(options) {
    if (typeof arguments[0] == 'string') {
        options = arguments[2] || {};
        handler = arguments[1];
        selector = arguments[0];
        target = document;
    } else if (arguments.length == 1 && target && typeof target.handler == 'function') {
        options = arguments[0];
        handler = options.handler;
        selector = options.selector;
        target = options.target || document;
    } else if (!(target instanceof Node)) {
        throw 'Bad params for setMutationHandler.\n' +
            'A: [optional Node] target, [String] selector, [Function] handler, [optional Object] options\n' +
            'B: [Object] options\n' +
            'Options: target, selector, handler, processExisting, childList, attributes, characterData, subtree, attributeOldValue, characterDataOldValue, attributeFilter';
    } else
        options = options || {};

    if (options.processExisting && target.querySelector(selector))
        handler.call(null, Array.prototype.slice.call(target.querySelectorAll(selector)));
    if (!options.attributes && !options.characterData && !options.childList && options.subtree === undefined)
        options.childList = options.subtree = true;

    var cb;
    if (/^#[\w\d-]+$/.test(selector)) {
        selector = selector.substr(1);
        cb = MOhandlerForId;
    } else {
        cb = MOhandler;
    }
    var observer = new MutationObserver(cb);
    observer.observe(target, options || {subtree:true, childList:true});
    return observer;

    function MOhandler(mutations) {
        if (mutations.length > 100 && !document.querySelector(selector))
            return;
        var found = [];
        for (var i=0, m; (m = mutations[i++]); ) {
            switch (m.type) {
                case 'childList':
                    var nodes = m.addedNodes, nl = nodes.length;
                    var textNodesOnly = true;
                    for (var j=0; j < nl; j++) {
                        var n = nodes[j];
                        textNodesOnly &= n.nodeType == 3; // TEXT_NODE
                        if (n.nodeType != 1) // ELEMENT_NODE
                            continue;
                        if (n.matches(selector))
                            found.push(n);
                        else if (n.querySelector(selector)) {
                            n = n.querySelectorAll(selector);
                            if (n.length < 1000)
                                found.push.apply(found, n);
                            else
                                found = found.concat(found.slice.call(n));
                        }
                    }
                    if (textNodesOnly && m.target.matches(selector))
                        found.push(m.target);
                    break;
                case 'attributes':
                    if (m.target.matches(selector))
                        found.push(m.target);
                    break;
                case 'characterData':
                    if (m.target.parentNode && m.target.parentNode.matches(selector))
                        found.push(m.target.parentNode);
                    break;
            }
        }
        if (!found.length)
            return;
        if (handler.call(observer, found) === false)
            observer.disconnect();
    }

    function MOhandlerForId(mutations) {
        var el = document.getElementById(selector);
        if (el && target.contains(el))
            if (handler.call(observer, [el]) === false)
                observer.disconnect();
    }
}