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Implement frontend code syntax highlighting for markdown content #92

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Implement frontend code syntax highlighting for markdown content #92

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Initial plan
Copilot Sep 3, 2025
5e3de56
Implement code syntax highlighting for MarkdownRenderer
Copilot Sep 3, 2025
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11 changes: 11 additions & 0 deletions frontend/package-lock.json
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6 changes: 4 additions & 2 deletions frontend/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -16,8 +16,10 @@
},
"dependencies": {
"@tdesign-vue-next/chat": "^0.4.5",
"highlight.js": "^11.11.1",
"katex": "^0.16.22",
"markdown-it": "^14.1.0",
"markdown-it-highlightjs": "^4.2.0",
"markdown-it-katex": "^2.0.3",
"pinia": "^3.0.3",
"pinia-plugin-persistedstate": "^4.5.0",
Expand All @@ -41,8 +43,8 @@
"vue-tsc": "^3.0.4"
},
"overrides": {
"markdown-it-katex":{
"katex":"^0.16.0"
"markdown-it-katex": {
"katex": "^0.16.0"
}
}
}
32 changes: 28 additions & 4 deletions frontend/src/components/MarkdownRenderer.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,10 @@
import { computed, onMounted, onBeforeUnmount, ref, watch, nextTick } from 'vue';
import MarkdownIt from 'markdown-it';
import mila from 'markdown-it-katex';
import highlightjs from 'markdown-it-highlightjs';
import hljs from 'highlight.js';
import 'katex/dist/katex.min.css';
import 'highlight.js/styles/github.css';
import { useAuthStore } from '@/stores/auth';
import { workspaceFileAPI } from '@/api/workspace';

Expand All @@ -33,13 +36,22 @@ function normalizePath(base: string, rel: string): string {
return baseParts.join('/');
}

// markdown-it 实例（支持公式、基础语法）
// markdown-it 实例（支持公式、基础语法、代码高亮）
const md = new MarkdownIt({
html: true,
linkify: true,
breaks: true,
highlight: function (str, lang) {
if (lang && hljs.getLanguage(lang)) {
try {
return hljs.highlight(str, { language: lang }).value;
} catch (__) {}
}
return ''; // use external default escaping
}
});
md.use(mila);
md.use(highlightjs);

// 渲染后的 HTML
const renderedContent = computed(() => {
Expand Down Expand Up @@ -132,22 +144,34 @@ onBeforeUnmount(() => {
background-color: #f0f0f0;
padding: 2px 4px;
border-radius: 3px;
font-family: 'Courier New', monospace;
font-family: 'Courier New', 'Monaco', 'Consolas', monospace;
font-size: 0.9em;
}

/* 代码块样式：去除横向滚动，改为自动换行 */
.markdown-content :deep(pre) {
background-color: #f5f5f5;
background-color: #f8f8f8;
padding: 12px;
border-radius: 4px;
border-radius: 6px;
margin: 8px 0;
white-space: pre-wrap; /* 换行 */
word-break: break-word;
border: 1px solid #e1e4e8;
overflow-x: auto;
}

.markdown-content :deep(pre code) {
background-color: transparent;
padding: 0;
font-family: 'Courier New', 'Monaco', 'Consolas', monospace;
font-size: 0.85em;
line-height: 1.45;
}

/* highlight.js 样式覆盖 */
.markdown-content :deep(.hljs) {
background: transparent !important;
padding: 0 !important;
}

/* 列表样式 */
Expand Down
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