AI Enter as Newline

Enable Enter key for newline in AI chat input, use Cmd+Enter (Mac) or Ctrl+Enter (Windows) to send message.

// ==UserScript==
// @name         AI Enter as Newline
// @name:zh-TW   AI Enter 換行
// @name:zh-CN   AI Enter 换行
// @namespace    http://tampermonkey.net/
// @version      1.2.0
// @description  Enable Enter key for newline in AI chat input, use Cmd+Enter (Mac) or Ctrl+Enter (Windows) to send message.
// @description:zh-TW  讓 AI 聊天輸入區的 Enter 鍵可換行,使用 Cmd+Enter(Mac)或 Ctrl+Enter(Windows)送出訊息。
// @description:zh-CN  让 AI 聊天输入区的 Enter 键可换行,使用 Cmd+Enter(Mac)或 Ctrl+Enter(Windows)发送消息。
// @author       windofage
// @license      MIT
// @match        https://chatgpt.com/*
// @match        https://claude.ai/*
// @match        https://gemini.google.com/*
// @match        https://www.perplexity.ai/*
// @match        https://felo.ai/*
// @match        https://chat.deepseek.com/*
// @match        https://grok.com/*
// @include      http://192.168.*.*:*/*
// @icon         data:image/png;base64,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

// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_registerMenuCommand
// ==/UserScript==

(() => {
  "use strict";

  // ----- 設定管理 -----

  // 預設設定
  const defaultConfig = {
    shortcuts: {
      send: {
        ctrl: true, // Ctrl + Enter
        alt: false, // Alt/Option + Enter
        meta: true, // Win/Cmd/Super + Enter
      },
    },
  };

  // 多語系翻譯字典
  const translations = {
    en: {
      settings: "Settings",
      close: "✕",
      sendShortcut: "Send Message Shortcut (+ Enter):",
      save: "Save",
      reset: "Reset",
      saveSuccess: "Settings saved!",
      saveFailed: "Failed to save settings!",
      resetConfirm: "Are you sure you want to reset to default settings?",
      resetSuccess: "Settings reset to default!",
      ctrlEnter: "Ctrl + Enter",
      altEnter: "Alt + Enter",
      cmdEnter: "Cmd + Enter",
      winEnter: "Win + Enter",
      superEnter: "Super + Enter",
    },

    "zh-tw": {
      settings: "設定",
      close: "✕",
      sendShortcut: "傳送訊息快捷鍵(+ Enter):",
      save: "儲存",
      reset: "重設",
      saveSuccess: "設定已儲存!",
      saveFailed: "儲存設定失敗!",
      resetConfirm: "確定要重設為預設設定嗎?",
      resetSuccess: "設定已重設為預設值!",
      ctrlEnter: "Ctrl + Enter",
      altEnter: "Alt + Enter",
      cmdEnter: "Cmd + Enter",
      winEnter: "Win + Enter",
      superEnter: "Super + Enter",
    },

    "zh-cn": {
      settings: "设置",
      close: "✕",
      sendShortcut: "发送消息快捷键(+ Enter):",
      save: "保存",
      reset: "重置",
      saveSuccess: "设置已保存!",
      saveFailed: "保存设置失败!",
      resetConfirm: "确定要重置为默认设置吗?",
      resetSuccess: "设置已重置为默认值!",
      ctrlEnter: "Ctrl + Enter",
      altEnter: "Alt + Enter",
      cmdEnter: "Cmd + Enter",
      winEnter: "Win + Enter",
      superEnter: "Super + Enter",
    },
  };

  // 偵測瀏覽器語言偏好
  function detectBrowserLanguage() {
    const lang = navigator.language || navigator.userLanguage;
    if (lang.startsWith("zh")) {
      if (lang.includes("TW") || lang.includes("HK") || lang.includes("MO")) {
        return "zh-tw";
      } else {
        return "zh-cn";
      }
    } else {
      return "en";
    }
  }

  // 取得目前使用的語言
  function getCurrentLanguage() {
    return detectBrowserLanguage();
  }

  // 取得翻譯文字
  function t(key) {
    const lang = getCurrentLanguage();
    return translations[lang]?.[key] || translations.en[key] || key;
  }

  // 載入使用者設定
  function loadConfig() {
    try {
      const savedConfig = GM_getValue("aiEnterConfig");
      if (savedConfig) {
        const config = JSON.parse(savedConfig);
        return {
          shortcuts: {
            send: {
              ctrl:
                config.shortcuts?.send?.ctrl !== undefined
                  ? config.shortcuts.send.ctrl
                  : defaultConfig.shortcuts.send.ctrl,
              alt:
                config.shortcuts?.send?.alt !== undefined
                  ? config.shortcuts.send.alt
                  : defaultConfig.shortcuts.send.alt,
              meta:
                config.shortcuts?.send?.meta !== undefined
                  ? config.shortcuts.send.meta
                  : defaultConfig.shortcuts.send.meta,
            },
          },
        };
      }
    } catch (error) {
      console.error("載入設定時發生錯誤:", error);
    }
    return defaultConfig;
  }

  // 儲存設定
  function saveConfig(config) {
    try {
      GM_setValue("aiEnterConfig", JSON.stringify(config));
      return true;
    } catch (error) {
      console.error("儲存設定時發生錯誤:", error);
      return false;
    }
  }

  // 建立設定介面
  function createConfigInterface() {
    // 如果已經有設定視窗開啟,則關閉它
    const existingDialog = document.getElementById("ai-enter-config");
    if (existingDialog) {
      existingDialog.remove();
      return;
    }

    // 偵測使用者的作業系統
    function detectOS() {
      const userAgent = navigator.userAgent.toLowerCase();
      const platform = navigator.platform.toLowerCase();

      if (platform.includes("mac") || userAgent.includes("mac")) {
        return "mac";
      } else if (platform.includes("win") || userAgent.includes("win")) {
        return "windows";
      } else if (platform.includes("linux") || userAgent.includes("linux")) {
        return "linux";
      } else {
        return "other";
      }
    }

    const currentOS = detectOS();

    // 載入目前設定
    const config = loadConfig();

    // 偵測深色模式
    const isDarkMode =
      window.matchMedia &&
      window.matchMedia("(prefers-color-scheme: dark)").matches;

    // 根據深色/淺色模式設定配色
    const colors = {
      background: isDarkMode ? "#2d2d2d" : "#ffffff",
      text: isDarkMode ? "#e0e0e0" : "#333333",
      border: isDarkMode ? "#555555" : "#dddddd",
      inputBg: isDarkMode ? "#3d3d3d" : "#ffffff",
      inputBorder: isDarkMode ? "#666666" : "#dddddd",
      buttonBg: isDarkMode ? "#3d3d3d" : "#f5f5f5",
      buttonText: isDarkMode ? "#e0e0e0" : "#333333",
      primary: "#4caf50", // 綠色按鈕,保持不變
      shadow: isDarkMode ? "rgba(0,0,0,0.3)" : "rgba(0,0,0,0.15)",
    };

    // 建立設定對話框
    const dialogDiv = document.createElement("div");
    dialogDiv.id = "ai-enter-config";
    dialogDiv.style.position = "fixed";
    dialogDiv.style.top = "50%";
    dialogDiv.style.left = "50%";
    dialogDiv.style.transform = "translate(-50%, -50%)";
    dialogDiv.style.backgroundColor = colors.background;
    dialogDiv.style.color = colors.text;
    dialogDiv.style.border = `1px solid ${colors.border}`;
    dialogDiv.style.borderRadius = "8px";
    dialogDiv.style.padding = "20px";
    dialogDiv.style.width = "350px";
    dialogDiv.style.maxWidth = "90vw";
    dialogDiv.style.maxHeight = "90vh";
    dialogDiv.style.overflowY = "auto";
    dialogDiv.style.zIndex = "10000";
    dialogDiv.style.boxShadow = `0 4px 12px ${colors.shadow}`;
    dialogDiv.style.fontFamily =
      "-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif";

    // 設定標題
    const titleDiv = document.createElement("div");
    titleDiv.style.display = "flex";
    titleDiv.style.justifyContent = "space-between";
    titleDiv.style.alignItems = "center";
    titleDiv.style.marginBottom = "16px";

    const title = document.createElement("h2");
    title.textContent = t("settings");
    title.style.margin = "0";
    title.style.fontSize = "18px";
    title.style.color = colors.text;

    const closeButton = document.createElement("button");
    closeButton.textContent = t("close");
    closeButton.style.background = "none";
    closeButton.style.border = "none";
    closeButton.style.color = colors.text;
    closeButton.style.cursor = "pointer";
    closeButton.style.fontSize = "18px";
    closeButton.onclick = () => dialogDiv.remove();

    titleDiv.appendChild(title);
    titleDiv.appendChild(closeButton);
    dialogDiv.appendChild(titleDiv);

    // 快捷鍵設定
    const shortcutsLabel = document.createElement("label");
    shortcutsLabel.textContent = t("sendShortcut");
    shortcutsLabel.style.display = "block";
    shortcutsLabel.style.marginBottom = "12px";
    shortcutsLabel.style.color = colors.text;
    shortcutsLabel.style.fontWeight = "bold";
    dialogDiv.appendChild(shortcutsLabel);

    // 快捷鍵選項容器
    const shortcutsContainer = document.createElement("div");
    shortcutsContainer.style.marginBottom = "16px";
    shortcutsContainer.style.padding = "12px";
    shortcutsContainer.style.backgroundColor = isDarkMode
      ? "#3a3a3a"
      : "#f8f9fa";
    shortcutsContainer.style.border = `1px solid ${colors.border}`;
    shortcutsContainer.style.borderRadius = "6px";

    // 根據作業系統顯示適當的快捷鍵標籤
    const shortcuts = [
      {
        key: "ctrl",
        label: currentOS === "mac" ? `⌃ ${t("ctrlEnter")}` : t("ctrlEnter"),
      },
      {
        key: "alt",
        label: currentOS === "mac" ? `⌥ ${t("altEnter")}` : t("altEnter"),
      },
      {
        key: "meta",
        label:
          currentOS === "mac"
            ? `⌘ ${t("cmdEnter")}`
            : currentOS === "windows"
            ? `⊞ ${t("winEnter")}`
            : currentOS === "linux"
            ? t("superEnter")
            : t("winEnter"),
      },
    ];

    shortcuts.forEach((shortcut) => {
      const optionDiv = document.createElement("div");
      optionDiv.style.display = "flex";
      optionDiv.style.alignItems = "center";
      optionDiv.style.marginBottom = "8px";

      const checkbox = document.createElement("input");
      checkbox.type = "checkbox";
      checkbox.id = `shortcut-${shortcut.key}`;
      checkbox.checked =
        config.shortcuts?.send?.[shortcut.key] !== undefined
          ? config.shortcuts.send[shortcut.key]
          : defaultConfig.shortcuts.send[shortcut.key];
      if (isDarkMode) {
        checkbox.style.accentColor = colors.primary;
      }

      const labelElement = document.createElement("label");
      labelElement.htmlFor = `shortcut-${shortcut.key}`;
      labelElement.style.marginLeft = "8px";
      labelElement.style.color = colors.text;
      labelElement.style.cursor = "pointer";
      labelElement.style.flexGrow = "1";
      labelElement.textContent = shortcut.label;

      optionDiv.appendChild(checkbox);
      optionDiv.appendChild(labelElement);
      shortcutsContainer.appendChild(optionDiv);
    });

    dialogDiv.appendChild(shortcutsContainer);

    // 按鈕區域
    const buttonDiv = document.createElement("div");
    buttonDiv.style.display = "flex";
    buttonDiv.style.justifyContent = "flex-end";
    buttonDiv.style.marginTop = "16px";

    const saveButton = document.createElement("button");
    saveButton.textContent = t("save");
    saveButton.style.padding = "8px 16px";
    saveButton.style.backgroundColor = colors.primary;
    saveButton.style.color = "white";
    saveButton.style.border = "none";
    saveButton.style.borderRadius = "4px";
    saveButton.style.cursor = "pointer";
    saveButton.style.marginLeft = "8px";

    saveButton.onclick = () => {
      // 取得勾選的快捷鍵設定
      const sendShortcuts = {
        ctrl: document.getElementById("shortcut-ctrl").checked,
        alt: document.getElementById("shortcut-alt").checked,
        meta: document.getElementById("shortcut-meta").checked,
      };

      const newConfig = {
        shortcuts: {
          send: sendShortcuts,
        },
      };

      if (saveConfig(newConfig)) {
        alert(t("saveSuccess"));
        dialogDiv.remove();
        // 重新載入設定
        currentConfig = loadConfig();
      } else {
        alert(t("saveFailed"));
      }
    };

    const resetButton = document.createElement("button");
    resetButton.textContent = t("reset");
    resetButton.style.padding = "8px 16px";
    resetButton.style.backgroundColor = colors.buttonBg;
    resetButton.style.color = colors.buttonText;
    resetButton.style.border = `1px solid ${colors.border}`;
    resetButton.style.borderRadius = "4px";
    resetButton.style.cursor = "pointer";

    resetButton.onclick = () => {
      if (confirm(t("resetConfirm"))) {
        saveConfig(defaultConfig);
        alert(t("resetSuccess"));
        dialogDiv.remove();
        // 重新載入設定
        currentConfig = loadConfig();
        // 移除背景遮罩
        const overlay = document.querySelector('div[style*="z-index: 9999"]');
        if (overlay) overlay.remove();
        // 重新開啟設定介面以顯示重設後的設定
        createConfigInterface();
      }
    };

    buttonDiv.appendChild(resetButton);
    buttonDiv.appendChild(saveButton);
    dialogDiv.appendChild(buttonDiv);

    // 新增設定對話框到頁面
    document.body.appendChild(dialogDiv);

    // 新增背景遮罩
    const overlay = document.createElement("div");
    overlay.style.position = "fixed";
    overlay.style.top = "0";
    overlay.style.left = "0";
    overlay.style.width = "100%";
    overlay.style.height = "100%";
    overlay.style.backgroundColor = isDarkMode
      ? "rgba(0,0,0,0.7)"
      : "rgba(0,0,0,0.5)";
    overlay.style.zIndex = "9999";
    overlay.onclick = () => {
      overlay.remove();
      dialogDiv.remove();
    };

    document.body.insertBefore(overlay, dialogDiv);
  }

  // 載入設定
  let currentConfig = loadConfig();

  // 註冊設定選單
  GM_registerMenuCommand("⚙️ Settings", createConfigInterface);

  // 輸出啟動資訊至 console
  console.log(
    "AI Enter Newline UserScript loaded. Current config:",
    currentConfig
  );

  // 輔助函數:取得事件目標元素
  function getEventTarget(e) {
    return e.composedPath ? e.composedPath()[0] || e.target : e.target;
  }

  // 輔助函數:檢查是否正在進行中文輸入
  function isChineseInputMode(e) {
    return e.isComposing || e.keyCode === 229;
  }

  // 輔助函數:檢查是否在 ChatGPT 輸入框內
  function isInChatGPTTextarea(target) {
    return (
      target.id === "prompt-textarea" ||
      target.closest("#prompt-textarea") ||
      (target.getAttribute && target.getAttribute("contenteditable") === "true")
    );
  }

  /**
   * 檢查按鍵組合是否為任何可能的發送快捷鍵(不論是否啟用)
   * @param {KeyboardEvent} e - 鍵盤事件
   * @returns {boolean} 是否為潛在的發送快捷鍵組合
   */
  function isPotentialSendShortcut(e) {
    if (e.key !== "Enter") return false;

    // 檢查是否為任何可能的發送快捷鍵組合:Ctrl+Enter、Alt+Enter 或 Cmd+Enter
    const isCtrlOnly = e.ctrlKey && !e.altKey && !e.metaKey && !e.shiftKey;
    const isAltOnly = e.altKey && !e.ctrlKey && !e.metaKey && !e.shiftKey;
    const isMetaOnly = e.metaKey && !e.ctrlKey && !e.altKey && !e.shiftKey;

    return isCtrlOnly || isAltOnly || isMetaOnly;
  }

  // 檢查是否為發送快捷鍵
  function isSendShortcut(e) {
    // 必須按下 Enter 鍵
    if (e.key !== "Enter") return false;

    const shortcuts =
      currentConfig.shortcuts?.send || defaultConfig.shortcuts.send;

    // 檢查是否有任何一個勾選的快捷鍵符合目前按鍵組合
    return (
      (shortcuts.ctrl && e.ctrlKey && !e.altKey && !e.metaKey) ||
      (shortcuts.alt && e.altKey && !e.ctrlKey && !e.metaKey) ||
      (shortcuts.meta && e.metaKey && !e.ctrlKey && !e.altKey)
    );
  }

  // ChatGPT 特殊處理:尋找送出按鈕
  let findChatGPTSubmitButton = () => {
    return document.querySelector('button[data-testid="send-button"]');
  };

  // 監聽 keydown 事件,攔截非預期的 Enter 按下事件,避免在輸入元件內誤觸送出
  window.addEventListener(
    "keydown",
    (e) => {
      // ChatGPT 網站特殊處理
      if (window.location.href.includes("chatgpt.com")) {
        // 如果正在進行中文輸入法選字,不干擾原生行為
        if (isChineseInputMode(e)) {
          return;
        }

        // 如果是 Enter 鍵且沒有按下其他修飾鍵
        if (
          e.key === "Enter" &&
          !e.ctrlKey &&
          !e.shiftKey &&
          !e.metaKey &&
          !e.altKey
        ) {
          const target = getEventTarget(e);
          // 檢查是否在 prompt-textarea 或其他輸入區域
          if (isInChatGPTTextarea(target)) {
            e.stopPropagation();
            e.preventDefault();

            // 更可靠的換行方法:模擬 Shift+Enter 按鍵事件
            const shiftEnterEvent = new KeyboardEvent("keydown", {
              key: "Enter",
              code: "Enter",
              shiftKey: true,
              bubbles: true,
              cancelable: true,
            });
            target.dispatchEvent(shiftEnterEvent);

            // 如果上述方法無效,嘗試使用 insertParagraph 命令
            if (!shiftEnterEvent.defaultPrevented) {
              document.execCommand("insertParagraph");
            }

            return;
          }
        }

        // 使用自訂快捷鍵觸發送出
        if (isSendShortcut(e)) {
          // 同樣,如果正在中文輸入,不處理
          if (isChineseInputMode(e)) {
            return;
          }

          const target = getEventTarget(e);
          if (isInChatGPTTextarea(target)) {
            const submitButton = findChatGPTSubmitButton();
            if (submitButton && !submitButton.disabled) {
              e.preventDefault();
              e.stopPropagation();
              submitButton.click();
            }
          }
        }

        // 智慧型事件冒泡防止:如果是潛在的快捷鍵但未被使用者啟用,
        // 阻止事件傳播,避免觸發 ChatGPT 的原生快捷鍵行為
        if (isPotentialSendShortcut(e)) {
          const target = getEventTarget(e);
          if (isInChatGPTTextarea(target)) {
            e.preventDefault();
            e.stopPropagation();
          }
        }
      } else {
        // 其他網站的處理邏輯
        // 如果正在進行中文輸入法選字,不干擾原生行為
        if (isChineseInputMode(e)) {
          return;
        }

        // 如果是 Enter 鍵且沒有按下其他修飾鍵(純 Enter)
        if (
          e.key === "Enter" &&
          !e.ctrlKey &&
          !e.shiftKey &&
          !e.metaKey &&
          !e.altKey
        ) {
          const target = getEventTarget(e);
          if (
            /INPUT|TEXTAREA|SELECT|LABEL/.test(target.tagName) ||
            (target.getAttribute &&
              target.getAttribute("contenteditable") === "true")
          ) {
            // 阻止事件向上冒泡,避免觸發不必要的送出行為
            e.stopPropagation();
          }
        }

        // 如果是自訂快捷鍵組合,讓原生行為執行(不阻止)
        // 這樣使用者可以在其他網站使用相同的快捷鍵設定
        if (isSendShortcut(e)) {
          // 不做任何處理,讓網站的原生快捷鍵邏輯執行
          return;
        }

        // 智慧型事件冒泡防止:如果是潛在的快捷鍵但未被使用者啟用,
        // 也要阻止冒泡,避免觸發網站的原生快捷鍵行為
        // 但對於 felo.ai,允許 ctrl+enter 正常冒泡, 因為 felo.ai 的 ctrl+enter 是用來搜尋網頁的
        if (isPotentialSendShortcut(e)) {
          // 如果是 felo.ai 且是 ctrl+enter,不阻止冒泡
          if (
            window.location.href.includes("felo.ai") &&
            e.ctrlKey &&
            e.key === "Enter" &&
            !e.altKey &&
            !e.metaKey
          ) {
            return;
          }

          const target = getEventTarget(e);
          if (
            /INPUT|TEXTAREA|SELECT|LABEL/.test(target.tagName) ||
            (target.getAttribute &&
              target.getAttribute("contenteditable") === "true")
          ) {
            e.stopPropagation();
          }
        }
      }
    },
    true
  );

  // 監聽 keypress 事件,防止在輸入元件內誤觸送出
  window.addEventListener(
    "keypress",
    (e) => {
      // ChatGPT 網站使用 keydown 處理就足夠,這裡保持原樣
      if (window.location.href.includes("chatgpt.com")) return;

      // 如果正在進行中文輸入法選字,不干擾原生行為
      if (isChineseInputMode(e)) return; // 如果是 Enter 鍵且沒有按下其他修飾鍵(純 Enter)
      if (
        e.key === "Enter" &&
        !e.ctrlKey &&
        !e.shiftKey &&
        !e.metaKey &&
        !e.altKey
      ) {
        const target = getEventTarget(e);
        if (
          /INPUT|TEXTAREA|SELECT|LABEL/.test(target.tagName) ||
          (target.getAttribute &&
            target.getAttribute("contenteditable") === "true")
        ) {
          // 同樣阻止事件冒泡
          e.stopPropagation();
        }
      }

      // 如果是自訂快捷鍵組合,讓原生行為執行(不阻止)
      if (isSendShortcut(e)) {
        return;
      }

      // 智慧型事件冒泡防止:如果是潛在的快捷鍵但未被使用者啟用,
      // 也要阻止冒泡,避免觸發網站的原生快捷鍵行為
      // 但對於 felo.ai,允許 ctrl+enter 正常冒泡
      if (isPotentialSendShortcut(e)) {
        // 如果是 felo.ai 且是 ctrl+enter,不阻止冒泡
        if (
          window.location.href.includes("felo.ai") &&
          e.ctrlKey &&
          e.key === "Enter" &&
          !e.altKey &&
          !e.metaKey
        ) {
          return;
        }

        const target = getEventTarget(e);
        if (
          /INPUT|TEXTAREA|SELECT|LABEL/.test(target.tagName) ||
          (target.getAttribute &&
            target.getAttribute("contenteditable") === "true")
        ) {
          e.stopPropagation();
        }
      }
    },
    true
  );
})();