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58 lines
1.4 KiB
58 lines
1.4 KiB
import threading
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import time
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import os
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from typing import Generic, Protocol, TypeVar
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from openpilot.common.swaglog import cloudlog
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from openpilot.system.ui.lib.application import gui_app
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class RendererProtocol(Protocol):
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def render(self): ...
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R = TypeVar("R", bound=RendererProtocol)
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class BaseWindow(Generic[R]):
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def __init__(self, title: str):
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self._title = title
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self._renderer: R | None = None
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self._stop_event = threading.Event()
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self._thread = threading.Thread(target=self._run)
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self._thread.start()
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# wait for the renderer to be initialized
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while self._renderer is None and self._thread.is_alive():
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time.sleep(0.01)
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def _create_renderer(self) -> R:
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raise NotImplementedError()
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def _run(self):
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if os.getenv("CI") is not None:
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return
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gui_app.init_window(self._title)
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self._renderer = self._create_renderer()
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try:
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for _ in gui_app.render():
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if self._stop_event.is_set():
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break
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self._renderer.render()
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finally:
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gui_app.close()
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def __enter__(self):
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return self
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def close(self):
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if self._thread.is_alive():
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self._stop_event.set()
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self._thread.join(timeout=2.0)
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if self._thread.is_alive():
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cloudlog.warning(f"Failed to join {self._title} thread")
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def __del__(self):
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self.close()
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def __exit__(self, exc_type, exc_val, exc_tb):
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self.close()
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