From 5728e299a1a7203e2409afa55992ad77c79e03c2 Mon Sep 17 00:00:00 2001
From: Karlcarlo <karlcarlo@163.com>
Date: Mon, 7 Sep 2026 20:44:01 +0800
Subject: [PATCH] =?UTF-8?q?wx-h5-demo:=20=E5=A4=8D=E5=88=B6=E6=8C=89?=
 =?UTF-8?q?=E9=92=AE=E7=AE=80=E5=8C=96=E4=B8=BA=E9=9A=90=E8=97=8Ftextarea+?=
 =?UTF-8?q?execCommand,=20=E5=8E=BB=E6=8E=89Clipboard=20API=E4=B8=8E?=
 =?UTF-8?q?=E6=89=8B=E5=8A=A8=E5=BC=B9=E5=B1=82?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 index.html | 50 ++++++++++++--------------------------------------
 1 file changed, 12 insertions(+), 38 deletions(-)

diff --git a/index.html b/index.html
index 569836a..23b037d 100644
--- a/index.html
+++ b/index.html
@@ -135,39 +135,7 @@
   el('dbgClose').addEventListener('click', function () { el('dbgPanel').classList.remove('open'); });
   el('dbgClear').addEventListener('click', function () { el('dbgLog').innerHTML = ''; dbgCount = 0; el('dbgCount').textContent = ''; });
 
-  // 复制日志：拼纯文本（时间 + 内容），Clipboard API 优先，失败/不可用则降级 execCommand
-  function copyWithFallback(text) {
-    try {
-      var ta = document.createElement('textarea');
-      ta.value = text; ta.style.position = 'fixed'; ta.style.opacity = '0';
-      document.body.appendChild(ta); ta.select();
-      var ok2 = document.execCommand('copy');
-      document.body.removeChild(ta);
-      return !!ok2;
-    } catch (e) {
-      return false;
-    }
-  }
-  // 终极大兜底：两种 API 都失败时，弹出一个可全选/长按的文本区让用户手动复制
-  function manualCopy(text) {
-    dbg('自动复制不可用，弹出文本区请长按/全选复制 ↓', 'warn');
-    var box = el('dbgManual');
-    if (!box) {
-      box = document.createElement('div');
-      box.id = 'dbgManual';
-      box.style.cssText = 'position:fixed;left:10px;right:10px;top:10px;z-index:300;background:#fff;border:2px solid #F4593C;border-radius:12px;padding:10px;box-shadow:0 6px 20px rgba(0,0,0,.3);max-height:70vh;display:flex;flex-direction:column';
-      box.innerHTML = '<div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:6px">' +
-        '<b style="color:#F4593C;font-size:13px">手动复制日志</b>' +
-        '<button id="dbgManualClose" style="border:1px solid #ddd;background:#fff;border-radius:6px;padding:2px 10px">关闭</button></div>' +
-        '<textarea id="dbgManualText" style="flex:1;width:100%;min-height:180px;border:1px solid #eee;border-radius:8px;padding:8px;font-family:Menlo,Consolas,monospace;font-size:12px" readonly>' +
-        text.replace(/</g, '&lt;').replace(/>/g, '&gt;') + '</textarea>' +
-        '<div style="font-size:11px;color:#999;margin-top:6px">提示：微信里长按文本 → 全选 → 复制。</div>';
-      document.body.appendChild(box);
-      el('dbgManualClose').addEventListener('click', function () { box.parentNode.removeChild(box); });
-      var t = el('dbgManualText');
-      setTimeout(function () { t.focus(); t.select(); }, 300);
-    }
-  }
+  // 复制日志：隐藏 textarea + execCommand('copy')，微信 webview 通用做法
   el('dbgCopy').addEventListener('click', function () {
     var text = '';
     var lns = el('dbgLog').querySelectorAll('.ln');
@@ -177,11 +145,17 @@
     }
     text = '[wx-h5-demo 调试日志 v' + VER + ']\n' + text;
     function ok() { dbg('已复制 ' + lns.length + ' 条日志到剪贴板', 'ok'); }
-    function fallback() { if (copyWithFallback(text)) ok(); else manualCopy(text); }
-    if (navigator.clipboard && navigator.clipboard.writeText) {
-      navigator.clipboard.writeText(text).then(ok, function () { fallback(); });
-    } else {
-      fallback();
+    try {
+      var ta = document.createElement('textarea');
+      ta.value = text;
+      ta.style.cssText = 'position:fixed;top:0;left:0;opacity:0;height:1px;width:1px;overflow:hidden';
+      document.body.appendChild(ta);
+      ta.select();
+      var did = document.execCommand('copy');
+      document.body.removeChild(ta);
+      if (did) ok(); else dbgErr('复制失败(execCommand 返回 false)');
+    } catch (e) {
+      dbgErr('复制失败: ' + (e && e.message ? e.message : e));
     }
   });