Vetiver Redirect

点击 v2ex.com/t/{id} 时尝试用 v2explorer://topic/{id} 打开;若未安装应用则静默取消跳转并停留当前页。

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.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

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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!)

Advertisement:

// ==UserScript==
// @name         Vetiver Redirect
// @namespace    https://v2explorer.app/
// @version      1.0.1
// @description  点击 v2ex.com/t/{id} 时尝试用 v2explorer://topic/{id} 打开;若未安装应用则静默取消跳转并停留当前页。
// @match        https://www.v2ex.com/*
// @match        https://v2ex.com/*
// @run-at       document-start
// @grant        none
// @license MIT
// ==/UserScript==

(function () {
  "use strict";

  const topicHrefRe = /^https?:\/\/(?:www\.)?v2ex\.com\/t\/(\d+)(?:[/?#].*)?$/i;
  const toScheme = (id) => `v2explorer://topic/${id}`;

  // 仅拦截“正常点按”的左键/触摸点击;iOS 上没有 Ctrl/Meta 修饰键,但保留判断以免误伤桌面端
  function isPlainLeftClick(e) {
    return (
      e.button === 0 && !e.metaKey && !e.ctrlKey && !e.shiftKey && !e.altKey
    );
  }

  addEventListener(
    "click",
    (e) => {
      if (!isPlainLeftClick(e)) return;

      const a =
        e.target instanceof Element ? e.target.closest("a[href]") : null;
      if (!a) return;

      const href = a.href;
      const m = topicHrefRe.exec(href);
      if (!m) return;

      // 命中主题链接:阻止默认网页跳转,只尝试唤起自定义 scheme
      e.preventDefault();
      e.stopPropagation();

      const scheme = toScheme(m[1]);

      // iOS/iPadOS Safari:用户手势下设置 location 即可尝试拉起 App;
      // 若未安装应用,Safari 通常会静默无事发生,页面保持不动(符合“取消跳转”的需求)
      try {
        location.href = scheme;
      } catch (_) {
        // 无需处理:失败时保持原页
      }

      // 如果你希望“失败时回退到原网页链接”,取消注释下一行:
      // setTimeout(() => (document.hidden || document.visibilityState === "hidden") || (location.href = href), 1200);
    },
    true,
  );
})();