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YouTube Volume Mouse Controller - Alt Key Modifier

Modifies YouTube Volume Mouse Controller to only work with Alt + Mousewheel

当前为 2025-03-14 提交的版本，查看 最新版本。

// ==UserScript==
// @name        YouTube Volume Mouse Controller - Alt Key Modifier
// @version     1.0.0
// @description Modifies YouTube Volume Mouse Controller to only work with Alt + Mousewheel
// @match       *://www.youtube.com/*
// @grant       none
// @run-at      document-start
// ==/UserScript==

(function() {
    'use strict';

    function handleWheelEvent(event) {
        if (!event.altKey) {
            // Stop the event from propagating further (to the original script)
            event.stopPropagation();
            event.stopImmediatePropagation();
        }
        // If Alt *is* pressed, do nothing, allowing the event to continue normally
    }

    // Use capturing phase to intercept events *before* they reach other listeners
    document.addEventListener('wheel', handleWheelEvent, { capture: true, passive: false });
    document.addEventListener('mousewheel', handleWheelEvent, { capture: true, passive: false });
    document.addEventListener('DOMMouseScroll', handleWheelEvent, { capture: true, passive: false });
})();