| 54 | page._channel.on("screencastFrame", lambda params: self._dispatch_frame(params)) |
| 55 | |
| 56 | def _dispatch_frame(self, params: dict) -> None: |
| 57 | if not self._on_frame: |
| 58 | return |
| 59 | data = params["data"] |
| 60 | if isinstance(data, str): |
| 61 | data = base64.b64decode(data) |
| 62 | result = self._on_frame( |
| 63 | { |
| 64 | "data": data, |
| 65 | "timestamp": params.get("timestamp", 0), |
| 66 | "viewportWidth": params["viewportWidth"], |
| 67 | "viewportHeight": params["viewportHeight"], |
| 68 | } |
| 69 | ) |
| 70 | if hasattr(result, "__await__"): |
| 71 | self._page._loop.create_task(result) |
| 72 | |
| 73 | async def start( |
| 74 | self, |