Telemost Hotkeys

Adds keyboard shortcuts and button highlights to Yandex Telemost.

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。

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

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 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 });
    }
})();