Telemost Hotkeys

Adds keyboard shortcuts and button highlights to Yandex Telemost.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

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

(I already have a user script manager, let me install it!)

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.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name Telemost Hotkeys
// @name:ru Горячие клавиши для сервиса Яндекс Телемост
// @namespace https://github.com/happyproff/userscript-telemost-hotkeys
// @version 1.6.0
// @description Adds keyboard shortcuts and button highlights to Yandex Telemost.
// @description:ru Добавляет горячие клавиши и подсветку кнопок в Яндекс Телемост.
// @author Stanislav Gamaiunov
// @license MIT
// @match https://telemost.yandex.ru/*
// @match https://telemost.360.yandex.ru/*
// @match https://yandex.ru/chat*
// @icon https://telemost.yastatic.net/s3/telemost/_/5f111e8a180b3d3d27a674f5114a7809ff716168.png
// @homepageURL https://github.com/happyproff/userscript-telemost-hotkeys
// @supportURL https://github.com/happyproff/userscript-telemost-hotkeys/issues
// @grant none
// @run-at document-start
// ==/UserScript==

(function () {
    'use strict';

    const CLICK_MESSAGE_TYPE = 'telemost-hotkeys-click';
    const TELEMOST_ORIGINS = new Set([
        'https://telemost.yandex.ru',
        'https://telemost.360.yandex.ru',
    ]);
    const ALLOWED_SELECTORS = new Set([
        '[data-testid="turn-on-mic-button"], [data-testid="turn-off-mic-button"]',
        '[data-testid="turn-on-camera-button"], [data-testid="turn-off-camera-button"]',
        '[data-testid="hand-up-button"], [data-testid="hand-down-button"]',
        '[data-testid="start-demonstration-button"], [data-testid="stop-demonstration-button"]',
        'button[data-testid="chat-alt-button"]',
    ]);
    const BUTTON_ACTIVE_CLASS = 'telemost-hotkeys-button-active';
    const HOTKEYS = new Map([
        ['KeyA', {
            action: 'Microphone',
            selector: '[data-testid="turn-on-mic-button"], [data-testid="turn-off-mic-button"]',
        }],
        ['KeyV', {
            action: 'Camera',
            selector: '[data-testid="turn-on-camera-button"], [data-testid="turn-off-camera-button"]',
        }],
        ['KeyR', {
            action: 'Raise hand',
            selector: '[data-testid="hand-up-button"], [data-testid="hand-down-button"]',
        }],
        ['KeyD', {
            action: 'Screen sharing',
            selector: '[data-testid="start-demonstration-button"], [data-testid="stop-demonstration-button"]',
        }],
        ['KeyC', {
            action: 'Chat',
            selector: 'button[data-testid="chat-alt-button"]',
        }],
        ['KeyH', {
            action: 'Chat',
            selector: 'button[data-testid="chat-alt-button"]',
        }],
    ]);
    const isTopWindow = () => {
        try {
            return window.top === window;
        } catch {
            return false;
        }
    };
    let activeHighlightSelector = '';
    let highlightIntervalId;

    const clickPageButton = (selector) => {
        if (!ALLOWED_SELECTORS.has(selector)) {
            return false;
        }

        const button = document.querySelector(selector);
        button?.click();

        return Boolean(button);
    };

    const setPageButtonHighlight = (selector, isActive) => {
        activeHighlightSelector = isActive ? selector : '';
        clearInterval(highlightIntervalId);

        document.querySelectorAll(`.${BUTTON_ACTIVE_CLASS}`).forEach((button) => {
            button.classList.remove(BUTTON_ACTIVE_CLASS);
        });

        if (!isActive || !ALLOWED_SELECTORS.has(selector)) {
            return;
        }

        const applyHighlight = () => {
            if (activeHighlightSelector !== selector) {
                return;
            }

            document.querySelectorAll(`.${BUTTON_ACTIVE_CLASS}`).forEach((button) => {
                button.classList.remove(BUTTON_ACTIVE_CLASS);
            });
            document.querySelector(selector)?.classList.add(BUTTON_ACTIVE_CLASS);
        };

        applyHighlight();
        highlightIntervalId = setInterval(applyHighlight, 50);
    };

    const getParentOrigin = () => {
        return new URLSearchParams(window.location.search).get('parentOrigin') || 'https://telemost.360.yandex.ru';
    };

    const isTelemostPage = () => {
        return TELEMOST_ORIGINS.has(window.location.origin);
    };

    const isTelemostChatFrame = () => {
        return window.location.origin === 'https://yandex.ru' && !isTopWindow() && TELEMOST_ORIGINS.has(getParentOrigin());
    };

    if (!isTelemostPage() && !isTelemostChatFrame()) {
        return;
    }

    const sendButtonEvent = (eventName, action, selector) => {
        if (isTopWindow()) {
            if (eventName === 'press') {
                console.info(`[Telemost Hotkeys] ${action} hotkey pressed.`);
                setPageButtonHighlight(selector, true);
                clickPageButton(selector);
            } else if (eventName === 'release') {
                setPageButtonHighlight(selector, false);
            }

            return;
        }

        window.top?.postMessage({
            type: CLICK_MESSAGE_TYPE,
            eventName,
            action,
            selector,
        }, getParentOrigin());
    };

    const pressButton = (action, selector) => {
        sendButtonEvent('press', action, selector);
    };

    const releaseButton = (selector) => {
        sendButtonEvent('release', '', selector);
    };

    const handleHotkey = (e) => {
        const hotkey = HOTKEYS.get(e.code);
        const isAltRelease = e.type === 'keyup' && (e.code === 'AltLeft' || e.code === 'AltRight');

        if (e.type === 'keyup') {
            if (hotkey) {
                e.preventDefault();
                releaseButton(hotkey.selector);
            } else if (isAltRelease) {
                releaseButton('');
            }

            return;
        }

        if (e.repeat || !hotkey) {
            return;
        }

        if (!e.altKey || e.ctrlKey || e.metaKey || e.shiftKey) {
            return;
        }

        e.preventDefault();
        pressButton(hotkey.action, hotkey.selector);
    };

    window.addEventListener('keydown', handleHotkey, true);
    window.addEventListener('keyup', handleHotkey, true);
    window.addEventListener('blur', () => releaseButton(''));

    window.addEventListener('message', (e) => {
        if (
            !isTopWindow() ||
            e.origin !== 'https://yandex.ru' ||
            e.data?.type !== CLICK_MESSAGE_TYPE
        ) {
            return;
        }

        if (e.data.eventName !== 'release' && !ALLOWED_SELECTORS.has(e.data.selector)) {
            return;
        }

        if (e.data.eventName === 'press') {
            console.info(`[Telemost Hotkeys] ${e.data.action} hotkey pressed.`);
            setPageButtonHighlight(e.data.selector, true);
            clickPageButton(e.data.selector);
            setPageButtonHighlight(e.data.selector, true);
        } else if (e.data.eventName === 'release') {
            setPageButtonHighlight(e.data.selector, false);
        }
    });

    const addStyles = () => {
        const style = document.createElement('style');
        style.textContent = `
            [data-testid="turn-off-mic-button"],
            [data-testid="turn-off-camera-button"],
            [data-testid="hand-down-button"],
            [data-testid="stop-demonstration-button"] {
                background: #b91c1c !important;
                color: #ffffff !important;
            }

            .${BUTTON_ACTIVE_CLASS} {
                outline: 2px solid #3b82f6 !important;
                outline-offset: 2px !important;
            }
        `;
        document.head.appendChild(style);
    };

    if (document.head) {
        addStyles();
    } else {
        document.addEventListener('DOMContentLoaded', addStyles, { once: true });
    }
})();