修复在HTTP/非安全上下文环境下，复制rss link失效的问题 - #1091
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Pull request overview
该 PR 针对在非 HTTPS / 非安全上下文（例如家庭局域网通过 IP:端口访问）下浏览器禁用 navigator.clipboard.writeText 导致 RSS 链接无法复制的问题，引入带回退方案的复制实现以恢复 WebUI 的复制功能（对应 Issue #1090）。
Changes:
- 将 RSS 链接复制从直接调用
navigator.clipboard.writeText改为使用带 fallback 的复制方法。 - 新增
copyTextWithFallback：优先使用 Clipboard API（安全上下文），失败时回退到document.execCommand('copy')。
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| if (!link) return; | ||
| await navigator.clipboard.writeText(link); | ||
| await copyTextWithFallback(link); | ||
| copied.value = true; | ||
| clearTimeout(copyTimer); | ||
| copyTimer = setTimeout(() => { |
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| await navigator.clipboard.writeText(text); | ||
| return true; | ||
| } | ||
| } catch { | ||
| } |
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| // fallback 方案：创建一个不可见的 textarea 元素，选中内容并执行复制命令 | ||
| const textarea = document.createElement("textarea"); | ||
| textarea.value = text; | ||
| textarea.style.position = "fixed"; | ||
| textarea.style.left = "-9999px"; | ||
| textarea.style.top = "-9999px"; | ||
| textarea.setAttribute("readonly", ""); | ||
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| document.body.appendChild(textarea); | ||
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| textarea.select(); | ||
| textarea.setSelectionRange(0, textarea.value.length); | ||
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| const success = document.execCommand("copy"); | ||
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| document.body.removeChild(textarea); | ||
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| return success; |
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非 HTTPS / 安全上下文 环境下，chrome等浏览器会禁用
navigator.clipboard.writeText且无法在网站设置中更改此设置，导致在家庭局域网的无https的环境下无法使用复制功能[错误报告]非HTTPS下无法使用rss链接复制功能 #1090