qing
b79044d631
- Add api.reasoning_enabled config (default false) to enable thinking mode - Uses deepseek-v4-flash native thinking capability (thinking param), supports tool calls while reasoning - Real-time reasoning content streaming via reasoning_start/reasoning/reasoning_end WS messages - Frontend shows reasoning in gray italic area, auto-folds long reasoning (>2000 chars) - Dynamic reasoning detection: shows reasoning even if model returns it without explicit config - Increase default API timeout to 120s for longer reasoning responses - Remove duplicate _add_assistant_message_with_reasoning method - Update docs: config example, message types table, v2.5 changelog
151 lines
6.3 KiB
Python
151 lines
6.3 KiB
Python
"""聊天视图：用户/AI/系统消息 + AI 回复流式 Markdown 渲染。
|
|
|
|
服务端协议（aibox/aibox.py output_callback 原样透传 msg_type）：
|
|
- chunk 增量片段（正式回答内容），直接 append 到 AI 消息
|
|
- reasoning_start 思考开始信号，创建思考区域
|
|
- reasoning 思考内容增量片段，追加到思考区域
|
|
- reasoning_end 思考结束信号
|
|
- complete 收尾信号：chunk 流式是内容权威来源，complete 仅用于收尾；
|
|
仅当流式完全丢帧（未建 widget 且无内容）时，用 full_text 补建
|
|
"""
|
|
from textual.containers import VerticalScroll
|
|
from textual.widgets import Markdown, Static
|
|
|
|
|
|
class ChatView(VerticalScroll):
|
|
"""可滚动聊天区。AI 回复用单个 Markdown 部件增量 append，实现流式渲染。
|
|
|
|
滚动策略：每条新消息挂载后调用 anchor() 锚定底部——之后内容增长
|
|
（流式 append）容器会自动保持吸底；用户上翻时 Textual 自动脱锚，
|
|
下一条新消息再重新锚定。
|
|
"""
|
|
|
|
def __init__(self, **kwargs):
|
|
super().__init__(**kwargs)
|
|
self._ai_widget: Markdown | None = None
|
|
self._reasoning_widget: Static | None = None
|
|
self._ai_text = ""
|
|
self._reasoning_text = ""
|
|
self._ai_finalized = True # 初始无活跃 AI 消息
|
|
|
|
@property
|
|
def ai_text(self) -> str:
|
|
return self._ai_text
|
|
|
|
def _anchor_bottom(self):
|
|
"""锚定吸底（需在布局刷新后执行，否则滚到的是旧位置）。"""
|
|
self.call_after_refresh(self.anchor)
|
|
|
|
async def add_user(self, text: str):
|
|
await self.mount(Static(f"👤 你: {text}", classes="msg-user", markup=False))
|
|
self._anchor_bottom()
|
|
|
|
async def add_system(self, text: str, css_class: str = "msg-system"):
|
|
await self.mount(Static(text, classes=css_class, markup=False))
|
|
self._anchor_bottom()
|
|
|
|
async def start_ai(self):
|
|
"""预建一条 AI 消息（发送用户消息后即可调用，给出即时反馈）。"""
|
|
if self._ai_widget is not None:
|
|
return
|
|
self._ai_text = ""
|
|
self._ai_finalized = False
|
|
self._ai_widget = Markdown("", classes="msg-ai")
|
|
await self.mount(self._ai_widget)
|
|
self._anchor_bottom()
|
|
|
|
async def start_reasoning(self, hint: str = "🤔 思考中..."):
|
|
"""开始展示思考过程区域。"""
|
|
if self._reasoning_widget is not None:
|
|
return
|
|
self._reasoning_text = ""
|
|
self._reasoning_widget = Static(hint + "\n", classes="msg-reasoning", markup=False)
|
|
await self.mount(self._reasoning_widget)
|
|
self._anchor_bottom()
|
|
|
|
async def append_reasoning(self, delta: str):
|
|
"""追加思考内容增量。"""
|
|
if not delta:
|
|
return
|
|
if self._reasoning_widget is None:
|
|
await self.start_reasoning()
|
|
self._reasoning_text += delta
|
|
# 限制思考内容显示长度（最多显示最后 2000 字符，避免思考过长占满屏幕）
|
|
display = self._reasoning_text
|
|
if len(display) > 2000:
|
|
display = "...(前略)\n" + display[-2000:]
|
|
self._reasoning_widget.update(f"💭 思考中...\n{display}")
|
|
self.call_after_refresh(self.scroll_end, animate=False)
|
|
|
|
async def end_reasoning(self):
|
|
"""结束思考区域，更新提示文字。"""
|
|
if self._reasoning_widget is not None and self._reasoning_text:
|
|
# 思考结束后保持展示，但更新标签
|
|
display = self._reasoning_text
|
|
if len(display) > 2000:
|
|
display = "...(前略)\n" + display[-2000:]
|
|
self._reasoning_widget.update(f"💭 思考过程（{len(self._reasoning_text)}字符）\n{display}\n{'─' * 30}")
|
|
# 思考区域保留显示，不删除
|
|
|
|
async def append_ai(self, delta: str):
|
|
"""追加增量片段（服务端 chunk 为增量语义，直接拼接）。"""
|
|
if not delta:
|
|
return
|
|
if self._ai_finalized:
|
|
# 收尾后收到的延迟 chunk，丢弃以避免在上一条回复后追加脏数据
|
|
return
|
|
if self._ai_widget is None:
|
|
await self.start_ai()
|
|
self._ai_widget.append(delta)
|
|
self._ai_text += delta
|
|
# anchor 状态下容器会自动吸底；保险起见刷新后再滚一次
|
|
self.call_after_refresh(self.scroll_end, animate=False)
|
|
|
|
async def finish_ai(self, full_text: str = ""):
|
|
"""收尾一条 AI 消息。
|
|
|
|
chunk 流式追加是内容权威来源，complete 只做收尾：
|
|
- 已收尾则直接返回（防止 dialogue_ended + complete 双发导致重复挂载）
|
|
- widget 存在且有流式内容：保持已渲染内容不变，仅清空引用
|
|
- widget 存在但无内容（预建空框）且有 full_text：用 full_text 填充
|
|
- widget 存在但无内容也无 full_text：移除空框
|
|
- widget 不存在（流式丢帧/start_ai 未调用）且有 full_text：补建
|
|
"""
|
|
if self._ai_finalized:
|
|
return
|
|
w = self._ai_widget
|
|
self._ai_widget = None
|
|
|
|
if w is not None:
|
|
if self._ai_text:
|
|
# 有流式内容，chunk 已完整渲染，直接保留，不做替换
|
|
pass
|
|
elif full_text:
|
|
# 预建了空 widget 但没收到任何 chunk：用 full_text 填充
|
|
w.update(full_text)
|
|
self._ai_text = full_text
|
|
else:
|
|
# 预建后没有任何输出：移除空框
|
|
await w.remove()
|
|
else:
|
|
# widget 不存在（start_ai 未调用），有 full_text 则补建
|
|
if full_text:
|
|
self._ai_text = full_text
|
|
await self.mount(Markdown(full_text, classes="msg-ai"))
|
|
self._anchor_bottom()
|
|
|
|
self._ai_text = ""
|
|
self._reasoning_widget = None
|
|
self._reasoning_text = ""
|
|
self._ai_finalized = True
|
|
self.call_after_refresh(self.scroll_end, animate=False)
|
|
|
|
async def reset(self):
|
|
"""清空聊天区（/clear）。"""
|
|
self._ai_widget = None
|
|
self._reasoning_widget = None
|
|
self._ai_text = ""
|
|
self._reasoning_text = ""
|
|
self._ai_finalized = True
|
|
await self.remove_children()
|