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fix: 聊天导出改用原生保存对话框，清理 downloadFile

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- exportAsMarkdown/Html/Txt 全部改用 dialog.saveFile + fs.writeFile
- 删除 utils.ts 中的 downloadFile 函数（不再使用）
- 两处 a.download 保留为 fallback（bridge 不可用时降级）
This commit is contained in:
thzxx
2026-04-07 01:36:19 +08:00
parent 02d5ff19c7
commit f174e7d737
2 changed files with 30 additions and 18 deletions
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src/renderer/components/chat-area.ts
+30 -7
View File
@@ -4,7 +4,7 @@
import { state, KEYS } from '../state/state.js'; import { state, KEYS } from '../state/state.js';
import { marked } from '../utils/marked-config.js'; import { marked } from '../utils/marked-config.js';
import { escapeHtml, formatTime, downloadFile } from '../utils/utils.js'; import { escapeHtml, formatTime } from '../utils/utils.js';
import type { ChatSession, ChatMessage, ToolCallRecord } from '../types.js'; import type { ChatSession, ChatMessage, ToolCallRecord } from '../types.js';
function getFileIcon(filename: string): string { function getFileIcon(filename: string): string {
@@ -385,7 +385,30 @@ export function enableAutoScroll(): void {
// ── 导出功能 ── // ── 导出功能 ──
export function exportAsMarkdown(session: ChatSession): void { async function nativeSaveFile(defaultName: string, content: string): Promise<void> {
const bridge = (window as any).metonaDesktop;
if (bridge) {
const ext = defaultName.split('.').pop() || 'txt';
const filePath = await bridge.dialog.saveFile({
defaultPath: defaultName,
filters: [{ name: ext.toUpperCase(), extensions: [ext] }]
});
if (!filePath) return;
const result = await bridge.fs.writeFile(filePath, content, 'utf-8');
if (!result.success) {
console.error('[ChatArea] 导出失败:', result.error);
}
} else {
// 回退
const blob = new Blob([content], { type: 'text/plain;charset=utf-8' });
const a = document.createElement('a');
a.href = URL.createObjectURL(blob);
a.download = defaultName;
a.click();
}
}
export async function exportAsMarkdown(session: ChatSession): Promise<void> {
let md = `# ${session.title}\n\n**模型:** ${session.model} \n**时间:** ${formatTime(session.createdAt)}\n\n---\n\n`; let md = `# ${session.title}\n\n**模型:** ${session.model} \n**时间:** ${formatTime(session.createdAt)}\n\n---\n\n`;
session.messages.forEach(m => { session.messages.forEach(m => {
const role = m.role === 'user' ? '👤 用户' : '🤖 AI'; const role = m.role === 'user' ? '👤 用户' : '🤖 AI';
@@ -395,10 +418,10 @@ export function exportAsMarkdown(session: ChatSession): void {
} }
if (m.think) md += `> **思考:** ${m.think}\n\n`; if (m.think) md += `> **思考:** ${m.think}\n\n`;
}); });
downloadFile(`${session.title}.md`, md, 'text/markdown'); await nativeSaveFile(`${session.title}.md`, md);
} }
export function exportAsHtml(session: ChatSession): void { export async function exportAsHtml(session: ChatSession): Promise<void> {
let html = `<!DOCTYPE html><html><head><meta charset="UTF-8"><title>${escapeHtml(session.title)}</title> let html = `<!DOCTYPE html><html><head><meta charset="UTF-8"><title>${escapeHtml(session.title)}</title>
<style>body{max-width:800px;margin:0 auto;padding:20px;font-family:system-ui;line-height:1.6;background:#202020;color:#fff;} <style>body{max-width:800px;margin:0 auto;padding:20px;font-family:system-ui;line-height:1.6;background:#202020;color:#fff;}
.user{background:rgba(25,25,60,0.5);padding:12px;border-radius:8px;margin:8px 0;} .user{background:rgba(25,25,60,0.5);padding:12px;border-radius:8px;margin:8px 0;}
@@ -410,13 +433,13 @@ code{background:rgba(0,0,0,0.2);padding:2px 6px;border-radius:4px;}</style></hea
html += `<div class="${m.role}"><strong>${m.role === 'user' ? '👤 用户' : '🤖 AI'}</strong><br>${(m.content || '').replace(/\n/g, '<br>')}</div>`; html += `<div class="${m.role}"><strong>${m.role === 'user' ? '👤 用户' : '🤖 AI'}</strong><br>${(m.content || '').replace(/\n/g, '<br>')}</div>`;
}); });
html += '</body></html>'; html += '</body></html>';
downloadFile(`${session.title}.html`, html, 'text/html'); await nativeSaveFile(`${session.title}.html`, html);
} }
export function exportAsTxt(session: ChatSession): void { export async function exportAsTxt(session: ChatSession): Promise<void> {
let txt = `${session.title}\n模型: ${session.model}\n时间: ${formatTime(session.createdAt)}\n${'='.repeat(50)}\n\n`; let txt = `${session.title}\n模型: ${session.model}\n时间: ${formatTime(session.createdAt)}\n${'='.repeat(50)}\n\n`;
session.messages.forEach(m => { session.messages.forEach(m => {
txt += `[${m.role === 'user' ? '用户' : 'AI'}]\n${m.content || ''}\n\n`; txt += `[${m.role === 'user' ? '用户' : 'AI'}]\n${m.content || ''}\n\n`;
}); });
downloadFile(`${session.title}.txt`, txt, 'text/plain'); await nativeSaveFile(`${session.title}.txt`, txt);
} }
src/renderer/utils/utils.ts
-11
View File
@@ -48,17 +48,6 @@ export function escapeHtml(str: string): string {
return String(str).replace(/[&<>"']/g, (c) => map[c]); return String(str).replace(/[&<>"']/g, (c) => map[c]);
} }
/** 下载文件 */
export function downloadFile(filename: string, content: string, type: string): void {
const blob = new Blob([content], { type: type + ';charset=utf-8' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = filename;
a.click();
URL.revokeObjectURL(url);
}
/** 根据文件名检测语言标识（用于 Markdown 代码块） */ /** 根据文件名检测语言标识（用于 Markdown 代码块） */
export function detectLanguage(filename: string): string { export function detectLanguage(filename: string): string {
const ext = filename.split('.').pop()?.toLowerCase() || ''; const ext = filename.split('.').pop()?.toLowerCase() || '';