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Redgifs media controls

Adds media controls for Redgifs

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

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

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Redgifs media controls
// @namespace    http://tampermonkey.net/
// @version      2.0.0
// @description  Adds media controls for Redgifs
// @author       You
// @match        https://www.redgifs.com/watch/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=redgifs.com
// @license      MIT
// @grant        none
// ==/UserScript==

/* jshint esversion: 6 */

(function() {
    "use strict";
    console.info("Redgifs media controls initiated");

    const SELECTORS = {
        MUTE_BUTTON: ".sound",
        QUALITY_BUTTON: ".gif-quality",
        PLAY_BUTTON: "video",
        SEARCH_BOX_ID: "global-search-input"
    };

    var videoElement = getPlayerInSight();

    function getPlayerInSight() {
        const element = document.fullscreenElement || Array.prototype.filter.call(document.querySelectorAll(".player"), isInViewport)[0];
        console.log("ELEMENT IN SIGHT", element);
        return element || videoElement;
    }

    function videoPlayerRefresher() {
        // if video player isn't assigned, look for it again
        videoElement = videoElement || getPlayerInSight();
    }

    function isMuted() {
        return (videoElement.querySelector(`${SELECTORS.MUTE_BUTTON} > div[class=label]`).innerText === "Off");
    }

    function toggleSound(forceSoundState = false) {
        if (forceSoundState) {
            if (!isMuted()) {
                return;
            }
        }
        videoElement.querySelector(SELECTORS.MUTE_BUTTON)?.click();
    }

    function toggleFullscreen() {
        if (document.fullscreen) {
            document.exitFullscreen();
        } else {
            videoElement.requestFullscreen();
        }
    }

    function getQuality() {
        return videoElement.querySelector(SELECTORS.QUALITY_BUTTON)?.classList[1];
    }

    function toggleQuality(forceHDState = false) {
        const qualityButton = videoElement.querySelector(SELECTORS.QUALITY_BUTTON);
        if (forceHDState && qualityButton?.classList.contains("hd")) {
            return;
        }
        qualityButton?.click();
    }

    function togglePlayState(forcePlayState) {
        const playerElement = videoElement.querySelector(SELECTORS.PLAY_BUTTON);
        if (forcePlayState === true) {
            playerElement.play();
            return;
        } else if (forcePlayState === false) {
            playerElement.pause();
            return;
        }
        playerElement.click();
    }

    function seekVideo(time, isMarker=false, absolute=false) {
        const video = videoElement.querySelector("video");
        if (absolute) {
            video.currentTime = Number(time);
        } else if (!isMarker) {
            video.currentTime = Math.max(0, video.currentTime + Number(time));
        } else {
            const duration = video.duration;
            video.currentTime = (time * video.duration) / 10;
        }
    }

    function isInViewport(element) {
        const rect = element.getBoundingClientRect();
        return (rect.y > 0) && (rect.y < (window.innerHeight / 2));
        // return ((rect.height + rect.y) > 0);
    }

    function syncPlayerSettings(exportMode = false) {
        videoPlayerRefresher();

        const playerQuality = getQuality();
        const playerAudible = !isMuted();

        if (exportMode) {
            localStorage.setItem("quality", playerQuality);
            localStorage.setItem("audible", playerAudible);
        }

        const syncedQuality = localStorage.getItem("quality") || playerQuality;
        const syncedAudible = (localStorage.getItem("audible") || String(playerAudible)) === "true";
        if (syncedQuality !== playerQuality) {
            toggleQuality();
        }
        if (syncedAudible !== playerAudible) {
            toggleSound();
        }
    }

    document.addEventListener("keydown", e => {
        console.log(e.target);
        if (e.target.id === SELECTORS.SEARCH_BOX_ID) {
            // don't use media controls if user is currently typing in search bar
            return;
        }
        videoPlayerRefresher();
        console.log(e.code);
        switch(e.code) {
            case "KeyF":
                toggleFullscreen();
                break;
            case "KeyM":
                toggleSound();
                break;
            case "KeyQ":
                toggleQuality();
                break;
            case "Space":
                e.preventDefault();
                e.stopImmediatePropagation();
                togglePlayState();
                break;
            case "KeyA":
                toggleFullscreen();
                toggleSound(true);
                toggleQuality(true);
                break;
            case "ArrowLeft":
                seekVideo(-5);
                break;
            case "ArrowRight":
                seekVideo(5);
                break;
            case "ArrowUp":
            case "ArrowDown":
                // this is only to avoid clashes with Redgifs fullscreen behavoiur because their code is poorly written
                if (document.fullscreen) {
                    e.preventDefault();
                    e.stopImmediatePropagation();
                }
                break;
            case "Digit0":
            case "Digit1":
            case "Digit2":
            case "Digit3":
            case "Digit4":
            case "Digit5":
            case "Digit6":
            case "Digit7":
            case "Digit8":
            case "Digit9":
                seekVideo(Number(e.code[5]), true);
                break;
            default: console.log("Register key press", e.code);
        }
    });

    // change player based on scroll position
    let lastKnownScrollPosition = 0;
    let ticking = false;

    document.addEventListener('scroll', function(e) {
        lastKnownScrollPosition = window.scrollY;

        if (!ticking) {
            window.requestAnimationFrame(function() {
                const newVideoElement = getPlayerInSight();
                if (videoElement !== newVideoElement) {
                    console.log("Current video player changed to play", newVideoElement);
                }
                videoElement = newVideoElement;
                ticking = false;
            });

            ticking = true;
        }
    });

    window.addEventListener("blur", function(event) {
        syncPlayerSettings(true);
    }, false);

    window.addEventListener("focus", function(event) {
        window.setTimeout(syncPlayerSettings, 100);
    }, false);

    window.addEventListener("load", (event) => {
        syncPlayerSettings();
    });
})();