[TORN] Better Chat

Improvements to the usability of chats 2.0.
当前为 2023-10-24 提交的版本，查看最新版本。
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// ==UserScript==
// @name         [TORN] Better Chat
// @namespace    dekleinekobini.betterchat
// @license      GPL-3
// @version      0.3.1
// @description  Improvements to the usability of chats 2.0.
// @author       DeKleineKobini [2114440]
// @match        https://www.torn.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=torn.com
// @run-at       document-body
// @grant        GM_addStyle
// ==/UserScript==

"use strict";

const settings = {
    messages: {
        hideAvatars: true,
        compact: true,
        fixLongName: true,
        leftAlignedText: true, // left align all text, prefixed by the name (supports the mini-profile as well), even for private chats
        hyperlinks: true,
    },
    box: {
        groupRight: true, // opening chat logic to put private chat left of group chats
        hideAvatars: true,
    },
};

/*
    ## TODO

    * chat name colours
*/

const URL_PATTERN = /(https?:\/\/)?(\.?[\w-]+)+\.([a-z]{2,})(\/[\w\.]*)*(\?[\w=]+)?(#[\w/]+)?/gi;

(() => {
    setupStyles();
    setupChatModifier().catch((reason) => console.error("[Better Chat] Failed to initialize the chat modifier.", reason));
})();

function includeStyle(styleRules) {
    if (typeof GM_addStyle !== "undefined") {
        GM_addStyle(styleRules);
    } else {
        const styleElement = document.createElement("style");
        styleElement.setAttribute("type", "text/css");
        styleElement.innerHTML = styleRules;
        document.head.appendChild(styleElement);
    }
}

function setupStyles() {
    if (settings.messages.hideAvatars) {
        includeStyle(`
            [class*='chat-box-body__avatar___'] {
                display: none;
            }
        `);
    }
    if (settings.messages.compact) {
        includeStyle(`
            [class*='chat-box-body__sender-group___'] {
                margin-right: 0 !important;
            }

            [class*='chat-box-body__wrapper___'] {
                margin-bottom: 0px !important;
            }

            [class*='chat-box-body___'] > div:last-child {
                margin-bottom: 8px !important;
            }
        `);
    }
    if (settings.messages.fixLongName) {
        includeStyle(`
            [class*='chat-box-body__sender-button___'] {
                max-width: unset !important;
            }
        `);
    }
    if (settings.box.groupRight) {
        includeStyle(`
            [class*='group-chat-box___'] {
                gap: 3px;
            }

            [class*='group-chat-box__chat-box-wrapper___'] {
                margin-right: 0 !important;
            }
        `);
    }

    if (settings.messages.leftAlignedText) {
        includeStyle(`
            [class*='chat-box-body__sender___'] {
                display: unset !important;
                font-weight: 700;
            }

            [class*='chat-box-body__sender-separator___'] {
                display: unset !important;
                margin-right: 4px;
                line-break: anywhere;
            }

            [class*='chat-box-body__message-box___'] {
                background: none !important;
                border-radius: none !important;
                color: initial !important;
                padding: 0 !important;
            }

            [class*='chat-box-body__message-box--self___'] {
                background: none !important;
                border-radius: none !important;
                color: initial !important;
                padding: 0 !important;
            }

            [class*='chat-box-body__wrapper--self___'] {
                justify-content: normal !important;
            }

            [class*='chat-box-body__wrapper--self___'] > [class*='chat-box-body__message___'],
            [class*='chat-box-body__message___'] {
                color: var(--chat-text-color) !important;
            }
        `);
    }

    if (settings.box.hideAvatars) {
        includeStyle(`
            [class*='avatar__avatar-status-wrapper___'] > img {
                display: none;
            }
        `);
    }
}

async function setupChatModifier() {
    const group = await new Promise((resolve) => {
        new MutationObserver((_, observer) => {
            const group = findByClass(document, "group-chat-box___");
            if (group) {
                observer.disconnect();
                resolve(group);
            }
        }).observe(document, {childList: true, subtree: true});
    });

    group.childNodes.forEach(processChat)
    new MutationObserver((mutations) => {
        mutations.flatMap((mutation) => [...mutation.addedNodes]).forEach(processChat);
    }).observe(group, {childList: true});
}

function processChat(chatNode) {
    if (settings.box.groupRight) {
        const avatarElement = findByClass(chatNode, "chat-box-header__avatar___", "> *");
        const isGroup = avatarElement.tagName.toLowerCase() === "svg";

        if (isGroup) {
            chatNode.style.order = "1";
        }
    }

    const bodyElement = findByClass(chatNode, "chat-box-body___");
    bodyElement.childNodes.forEach(processMessage);
    new MutationObserver((mutations) => {
        mutations.flatMap((mutation) => [...mutation.addedNodes]).forEach(processMessage);
    }).observe(chatNode, {childList: true});
    new MutationObserver(() => {
        bodyElement.childNodes.forEach(processMessage);
    }).observe(bodyElement, {childList: true});
}

function processMessage(messageNode) {
    const senderElement = findByClass(messageNode, "chat-box-body__sender___");
    const messageElement = findByClass(messageNode, "chat-box-body__message___");

    if (senderElement.textContent === "newMessage") {
        // Take the name from the sidebar.
        senderElement.textContent = findByClass(document, "menu-value___").textContent;
    }

    if (settings.messages.hyperlinks) {
        messageElement.innerHTML = replaceHyperlinks(messageElement.innerHTML);
    }
}

function findByClass(node, className, subSelector = "") {
    return node.querySelector(`[class*='${className}'] ${subSelector}`.trim())
}

function replaceHyperlinks(text) {
    return text.replace(URL_PATTERN, (url) => {
        let usableUrl = url;
        if (!usableUrl.startsWith('http://') && !usableUrl.startsWith('https://')) {
            usableUrl = 'https://' + usableUrl;
        }
        return `<a href="${usableUrl}" target="_blank">${url}</a>`;
    });
}
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