fix: make copy buttons work on HTTP panel pages

Read share links from input fields and fall back to execCommand when
Clipboard API is unavailable outside secure contexts.

Co-authored-by: Cursor <cursoragent@cursor.com>

panel/static/app.js

@@ -10,14 +10,55 @@ function apiUrl(path) {
   return `${base}${path}`;
 }
 
-document.querySelectorAll("[data-copy]").forEach((btn) => {
-  btn.addEventListener("click", async () => {
-    const text = btn.dataset.copy;
+function copyText(text) {
+  if (navigator.clipboard && window.isSecureContext) {
+    return navigator.clipboard.writeText(text);
+  }
+  return new Promise((resolve, reject) => {
+    const ta = document.createElement("textarea");
+    ta.value = text;
+    ta.setAttribute("readonly", "");
+    ta.style.position = "fixed";
+    ta.style.left = "-9999px";
+    document.body.appendChild(ta);
+    ta.select();
     try {
-      await navigator.clipboard.writeText(text);
+      if (document.execCommand("copy")) {
+        resolve();
+      } else {
+        reject(new Error("execCommand failed"));
+      }
+    } catch (err) {
+      reject(err);
+    } finally {
+      document.body.removeChild(ta);
+    }
+  });
+}
+
+document.querySelectorAll(".copy-row").forEach((row) => {
+  const input = row.querySelector(".copy-input");
+  const btn = row.querySelector(".copy-btn");
+  if (!input || !btn) return;
+
+  input.addEventListener("click", () => {
+    input.select();
+    input.setSelectionRange(0, input.value.length);
+  });
+
+  btn.addEventListener("click", async () => {
+    const text = input.value;
+    if (!text) {
+      toast("没有可复制的内容");
+      return;
+    }
+    try {
+      input.select();
+      input.setSelectionRange(0, text.length);
+      await copyText(text);
       toast("已复制到剪贴板");
     } catch {
-      toast("复制失败，请手动选择文本");
+      toast("复制失败，请选中上方链接后 Ctrl+C");
     }
   });
 });

panel/static/style.css

@@ -70,7 +70,8 @@ body {
 
 input[type="text"],
 input[type="password"],
-input[readonly] {
+input[readonly],
+input.copy-input {
   width: 100%;
   padding: 10px 12px;
   border-radius: 8px;
@@ -79,6 +80,11 @@ input[readonly] {
   color: var(--text);
 }
 
+input.copy-input {
+  cursor: pointer;
+  font-size: 0.82rem;
+}
+
 .btn {
   border: 1px solid var(--border);
   background: #111827;

panel/templates/dashboard.html

@@ -75,15 +75,15 @@
       <div class="field">
         <label>VLESS + Reality</label>
         <div class="copy-row">
-          <input readonly value="{{ node.links.vless }}">
-          <button class="btn" data-copy="{{ node.links.vless }}">复制</button>
+          <input class="copy-input" readonly value="{{ node.links.vless }}">
+          <button type="button" class="btn copy-btn">复制</button>
         </div>
       </div>
       <div class="field">
         <label>Hysteria2</label>
         <div class="copy-row">
-          <input readonly value="{{ node.links.hy2 }}">
-          <button class="btn" data-copy="{{ node.links.hy2 }}">复制</button>
+          <input class="copy-input" readonly value="{{ node.links.hy2 }}">
+          <button type="button" class="btn copy-btn">复制</button>
         </div>
       </div>
       <div class="node-actions">