mirror of
https://github.com/snowykami/neo-blog.git
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feat: 添加代码块复制功能，支持剪贴板操作并提供用户反馈
This commit is contained in:
@ -1,97 +1,95 @@
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'use client'
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import { useTranslations } from "next-intl";
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import React from "react";
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import { toast } from "sonner";
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import copyToClipboard from '@/lib/clipboard';
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function extractText(node: React.ReactNode): string {
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if (typeof node === "string") return node;
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if (Array.isArray(node)) return node.map(extractText).join("");
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if (
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React.isValidElement(node) &&
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node.props &&
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typeof node.props === "object" &&
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"children" in node.props
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) {
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return extractText(node.props.children as React.ReactNode);
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}
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return "";
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if (typeof node === "string") return node;
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if (Array.isArray(node)) return node.map(extractText).join("");
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if (
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React.isValidElement(node) &&
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node.props &&
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typeof node.props === "object" &&
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"children" in node.props
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) {
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return extractText(node.props.children as React.ReactNode);
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}
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return "";
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}
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export default function CodeBlock(props: React.ComponentPropsWithoutRef<"pre">) {
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let className: string | undefined = undefined;
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const child = props.children as React.ReactElement<{ className?: string; children?: React.ReactNode }> | undefined;
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if (
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child &&
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typeof child === "object" &&
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"props" in child &&
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child.props.className
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) {
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className = child.props.className as string | undefined;
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}
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let language = "";
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if (className) {
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const match = className.match(/language-(\w+)/);
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if (match) {
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language = match[1];
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}
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}
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let codeContent = "";
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if (
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child &&
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typeof child === "object" &&
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"props" in child
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) {
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codeContent = extractText(child.props.children);
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const t = useTranslations('CodeBlock');
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let className: string | undefined = undefined;
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const child = props.children as React.ReactElement<{ className?: string; children?: React.ReactNode }> | undefined;
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if (
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child &&
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typeof child === "object" &&
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"props" in child &&
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child.props.className
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) {
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className = child.props.className as string | undefined;
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}
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let language = "";
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if (className) {
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const match = className.match(/language-(\w+)/);
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if (match) {
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language = match[1];
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}
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}
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let codeContent = "";
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if (
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child &&
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typeof child === "object" &&
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"props" in child
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) {
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codeContent = extractText(child.props.children);
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}
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function handleCopy(e: React.MouseEvent<HTMLButtonElement>) {
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if (typeof window !== "undefined" && window.navigator?.clipboard) {
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window.navigator.clipboard.writeText(codeContent);
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} else {
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const textarea = document.createElement("textarea");
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textarea.value = codeContent;
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document.body.appendChild(textarea);
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textarea.select();
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document.execCommand("copy");
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document.body.removeChild(textarea);
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}
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toast.success("已经复制", {
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description: "代码已复制到剪贴板",
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});
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async function handleCopy(e: React.MouseEvent<HTMLButtonElement>) {
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try {
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const ok = await copyToClipboard(codeContent);
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if (ok) toast.success(t("copy_success"));
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else toast.error(t("copy_failed") || 'Copy failed');
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} catch (err) {
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console.error('copy failed', err);
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toast.error(t("copy_failed") || 'Copy failed');
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}
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}
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return (
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<div className="relative my-6 rounded-lg overflow-hidden bg-[#f5f5f7] dark:bg-[#23272f] border border-gray-200 dark:border-gray-700 shadow-sm group">
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<div className="flex items-center h-8 px-3 bg-[#e5e7eb] dark:bg-[#23272f] border-b border-gray-200 dark:border-gray-700 relative">
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<span className="w-3 h-3 rounded-full bg-red-400 mr-2" />
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<span className="w-3 h-3 rounded-full bg-yellow-400 mr-2" />
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<span className="w-3 h-3 rounded-full bg-green-400" />
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{language && (
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<span className="absolute left-1/2 -translate-x-1/2 text-xs text-gray-500 dark:text-gray-400 font-mono">
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{language}
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</span>
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)}
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<div
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className="absolute right-3 top-1/2 -translate-y-1/2 flex space-x-2
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return (
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<div className="relative my-6 rounded-2xl overflow-hidden bg-[#f5f5f7] dark:bg-[#23272f] border border-gray-200 dark:border-gray-700 shadow-sm group">
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<div className="flex items-center h-8 px-3 bg-[#e5e7eb] dark:bg-[#23272f] border-b border-gray-200 dark:border-gray-700 relative">
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<span className="w-3.5 h-3.5 rounded-full bg-red-400 mr-2" />
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<span className="w-3.5 h-3.5 rounded-full bg-yellow-400 mr-2" />
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<span className="w-3.5 h-3.5 rounded-full bg-green-400" />
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{language && (
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<span className="absolute left-1/2 -translate-x-1/2 text-xs text-gray-500 dark:text-gray-400 font-mono">
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{language}
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</span>
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)}
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<div
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className="absolute right-3 top-1/2 -translate-y-1/2 flex space-x-2
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opacity-100
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group-hover:opacity-100
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sm:opacity-0 sm:group-hover:opacity-100
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transition-opacity"
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>
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<button
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type="button"
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className="px-2 py-1 rounded text-xs bg-gray-200 dark:bg-gray-700 hover:bg-gray-300 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-200 border border-gray-300 dark:border-gray-600"
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title="复制代码"
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onClick={handleCopy}
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tabIndex={-1}
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>
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复制
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</button>
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</div>
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</div>
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<pre
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className="overflow-x-auto bg-transparent text-sm text-gray-800 dark:text-gray-100"
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{...props}
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/>
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>
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<button
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type="button"
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className="px-2 py-1 rounded text-xs bg-gray-200 dark:bg-gray-700 hover:bg-gray-300 dark:hover:bg-gray-600 text-gray-700 dark:text-gray-200 border border-gray-300 dark:border-gray-600"
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title="复制代码"
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onClick={handleCopy}
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tabIndex={-1}
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>
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{t("copy")}
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</button>
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</div>
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);
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</div>
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<pre
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className="overflow-x-auto bg-transparent text-sm text-gray-800 dark:text-gray-100"
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{...props}
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/>
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</div>
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);
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}
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65
web/src/lib/clipboard.ts
Normal file
65
web/src/lib/clipboard.ts
Normal file
@ -0,0 +1,65 @@
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/**
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* copyToClipboard
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* - 优先使用 navigator.clipboard.writeText（异步）
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* - 如果不可用或失败，使用隐藏的 textarea + document.execCommand('copy') 回退
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* - 尝试在回退时恢复原始 selection
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*
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* 返回 Promise<boolean>，表示是否成功复制
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*/
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export async function copyToClipboard(text: string): Promise<boolean> {
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// 优先使用现代 Clipboard API
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try {
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if (typeof navigator !== 'undefined' && navigator.clipboard && typeof navigator.clipboard.writeText === 'function') {
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await navigator.clipboard.writeText(text);
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return true;
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}
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} catch (err) {
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// 忽略并回退到老方法
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// console.warn('navigator.clipboard.writeText failed, falling back to execCommand', err);
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}
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// 回退到 textarea + execCommand 方案（在许多旧浏览器上可用）
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if (typeof document === 'undefined') return false;
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const textarea = document.createElement('textarea');
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textarea.value = text;
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// 防止页面滚动，把元素放到不可见但可选中的位置
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textarea.setAttribute('readonly', '');
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textarea.style.position = 'fixed';
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textarea.style.left = '-9999px';
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textarea.style.top = '0';
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textarea.style.opacity = '0';
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document.body.appendChild(textarea);
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// 保存当前 selection（以便恢复）
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const selection = document.getSelection();
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let originalRange: Range | null = null;
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if (selection && selection.rangeCount > 0) {
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originalRange = selection.getRangeAt(0);
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}
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textarea.select();
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textarea.setSelectionRange(0, textarea.value.length);
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try {
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// 使用 any 绕开 TypeScript 中关于 execCommand 的弃用声明
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const successful = (document as any).execCommand('copy');
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// 清理并恢复 selection
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document.body.removeChild(textarea);
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if (selection) {
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selection.removeAllRanges();
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if (originalRange) selection.addRange(originalRange);
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}
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return Boolean(successful);
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} catch (err) {
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// 清理并恢复 selection
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document.body.removeChild(textarea);
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if (selection) {
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selection.removeAllRanges();
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if (originalRange) selection.addRange(originalRange);
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}
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return false;
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}
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}
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export default copyToClipboard;
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@ -16,6 +16,11 @@
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"error": "验证失败",
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"success": "恭喜呀，你是个人！"
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},
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"CodeBlock": {
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"copy": "复制",
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"copy_success": "已经复制到剪贴板",
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"copy_failed": "复制失败，请手动复制"
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},
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"Comment": {
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"collapse_replies": "收起",
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"comment": "评论",
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@ -56,7 +61,11 @@
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},
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"Login": {
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"captcha_error": "验证错误，请重试。",
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"fetch_captcha_config_failed": "获取验证码失败，请稍后重试。",
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"fetch_oidc_configs_failed": "获取第三方身份提供者配置失败。",
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"logging": "正在登录...",
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"login_success": "登录成功！",
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"login_failed": "登录失败",
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"welcome": "欢迎回来",
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"with_oidc": "使用第三方身份提供者",
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"or_continue_with_local_account": "或使用用户名和密码",
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@ -69,7 +78,6 @@
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"by_logging_in_you_agree_to_our": "登录即表示你同意我们的",
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"terms_of_service": "服务条款",
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"and": "和",
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"privacy_policy": "隐私政策",
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"login_failed": "登录失败，请检查你的凭据。"
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"privacy_policy": "隐私政策"
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}
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}
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