Video Controls for Instagram

Instagram video controls with keyboard shortcuts and persistent unmute, originally by FXZFun (fxzfun.com).

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         Video Controls for Instagram
// @namespace    https://github.com/appel/userscripts
// @version      1.1
// @description  Instagram video controls with keyboard shortcuts and persistent unmute, originally by FXZFun (fxzfun.com).
// @author       Ap
// @match        https://www.instagram.com/
// @match        https://www.instagram.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=instagram.com
// @grant        GM_addStyle
// @license      MIT
// ==/UserScript==

(function () {
    'use strict';

    if (!document.head.innerHTML.includes("::-webkit-media-controls")) {
        GM_addStyle(`
            ::-webkit-media-controls {
                z-index: 999999;
                position: relative;
            }
            video::-webkit-media-controls {
                opacity: 1;
            }
            video:hover::-webkit-media-controls {
                opacity: 1;
            }
        `);
    }

    function attachPersistentUnmute(video) {
        if (video.dataset.stickyUnmuteListenerAdded === "true") return;
        video.addEventListener('volumechange', () => {
            if (!video.muted) {
                video.dataset.stickyUnmute = "true";
            }
            if (video.muted && video.dataset.stickyUnmute === "true") {
                setTimeout(() => { video.muted = false; }, 0);
            }
        });
        video.dataset.stickyUnmuteListenerAdded = "true";
    }

    function updateVideo(video) {
        video.controls = "controls";
        attachPersistentUnmute(video);
        if (video.closest('article') !== null) {
            video.setAttribute("loop", "true");
        } else {
            video.removeAttribute("loop");
        }
    }

    document.querySelectorAll("video").forEach(updateVideo);

    const observer = new MutationObserver((mutationsList) => {
        for (let mutation of mutationsList) {
            if (mutation.type === 'childList') {
                mutation.addedNodes.forEach(node => {
                    if (node.nodeType === Node.ELEMENT_NODE) {
                        if (node.tagName === "VIDEO") {
                            updateVideo(node);
                        } else {
                            node.querySelectorAll("video").forEach(updateVideo);
                        }
                    }
                });
            }
        }
    });
    observer.observe(document.body, { childList: true, subtree: true });

    function getClosestVideo() {
        let closestVideo = null;
        let closestDistance = Infinity;
        document.querySelectorAll("video").forEach(video => {
            const rect = video.getBoundingClientRect();
            const centerX = rect.left + rect.width / 2;
            const centerY = rect.top + rect.height / 2;
            const distance = Math.hypot(window.innerWidth / 2 - centerX, window.innerHeight / 2 - centerY);
            if (distance < closestDistance) {
                closestDistance = distance;
                closestVideo = video;
            }
        });
        return closestVideo;
    }

    document.addEventListener("keydown", function (event) {
        const activeEl = document.activeElement;
        if (activeEl && (activeEl.tagName === "INPUT" || activeEl.tagName === "TEXTAREA" || activeEl.isContentEditable)) {
            return;
        }
        const video = getClosestVideo();
        if (!video) return;
        switch (event.key) {
            case "f":
                document.fullscreenElement ? document.exitFullscreen() : video.requestFullscreen();
                break;
            case "m":
                if (video.muted) {
                    video.muted = false;
                    video.dataset.stickyUnmute = "true";
                } else {
                    video.muted = true;
                    video.dataset.stickyUnmute = "";
                }
                break;
            case "k":
                video.paused ? video.play() : video.pause();
                setTimeout(() => {
                    video.muted = false;
                    video.dataset.stickyUnmute = "true";
                }, 100);
                break;
            case "j":
                video.currentTime = Math.max(0, video.currentTime - 10);
                break;
            case "l":
                video.currentTime = Math.min(video.duration, video.currentTime + 10);
                break;
            case ",":
                video.pause();
                video.currentTime = Math.max(0, video.currentTime - (1 / 30));
                break;
            case ".":
                video.pause();
                video.currentTime = Math.min(video.duration, video.currentTime + (1 / 30));
                break;
        }
    });
})();