zhenxun_bot/zhenxun/services/renderer/protocols.py
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♻️ refactor(UI): 重构UI渲染服务为组件化分层架构 (#2025)
* ♻️ refactor(UI): 重构UI渲染服务为组件化分层架构

♻️ **架构重构**
- UI渲染服务重构为组件化分层架构
- 解耦主题管理、HTML生成、截图功能

 **新增功能**
- `zhenxun.ui` 统一入口,提供 `render`、`markdown`、`vstack` 等API
- `RenderableComponent` 基类和渲染协议抽象
- 新增主题管理器和截图引擎模块

⚙️ **配置优化**
- UI配置迁移至 `superuser/ui_manager.py`
- 新增"重载UI主题"管理指令

🔧 **性能改进**
- 优化渲染缓存,支持组件级透明缓存
- 所有UI组件适配新渲染流程

* 🚨 auto fix by pre-commit hooks

---------

Co-authored-by: webjoin111 <455457521@qq.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2025-08-18 23:08:22 +08:00

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from abc import ABC, abstractmethod
from collections.abc import Awaitable
from pathlib import Path
from typing import Any, Protocol
from pydantic import BaseModel
class Renderable(ABC):
"""
一个协议定义了任何可被渲染的UI组件必须具备的形态。
"""
@property
@abstractmethod
def template_name(self) -> str:
"""组件声明它需要哪个模板文件。"""
...
async def prepare(self) -> None:
"""
[可选] 一个生命周期钩子,用于在渲染前执行异步数据获取和预处理。
"""
pass
def get_required_scripts(self) -> list[str]:
"""[可选] 返回此组件所需的JS脚本路径列表 (相对于assets目录)。"""
return []
def get_required_styles(self) -> list[str]:
"""[可选] 返回此组件所需的CSS样式表路径列表 (相对于assets目录)。"""
return []
@abstractmethod
def get_render_data(self) -> dict[str, Any | Awaitable[Any]]:
"""
返回一个将传递给模板的数据字典。
重要:字典的值可以是协程(Awaitable),渲染服务会自动解析它们。
"""
...
def get_extra_css(self, theme_manager: Any) -> str | Awaitable[str]:
"""
[可选] 一个生命周期钩子让组件可以提供额外的CSS。
可以返回 str 或 awaitable[str]。
"""
return ""
class ScreenshotEngine(Protocol):
"""
一个协议,定义了截图引擎的核心能力。
"""
async def render(self, html: str, base_url_path: Path, **render_options) -> bytes:
"""
将HTML字符串截图为图片。
参数:
html: 要渲染的HTML内容。
base_url_path: 用于解析相对路径如CSS, JS, 图片的基础URL路径。
**render_options: 传递给底层截图库的额外选项 (如 viewport)。
"""
...
class RenderResult(BaseModel):
"""
渲染服务的统一返回类型。
"""
image_bytes: bytes | None = None
html_content: str | None = None