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fix: guard against None control in ControlPhotographer.capture #323

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fix: guard against None control in ControlPhotographer.capture #323

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9 changes: 7 additions & 2 deletions ufo/automator/ui_control/screenshot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -79,12 +79,17 @@ def __init__(self, control: UIAWrapper):
"""
self.control = control

def capture(self, save_path: str = None, scalar: List[int] = None) -> Image.Image:
def capture(self, save_path: str = None, scalar: List[int] = None) -> Optional[Image.Image]:
"""
Capture a screenshot.
:param save_path: The path to save the screenshot.
:return: The screenshot.
:param scalar: Optional rescale dimensions [width, height].
:return: The screenshot, or None if the control is unavailable.
"""
if self.control is None:
logger.warning("Cannot capture screenshot: control element is None.")
return None

# Capture single window screenshot
screenshot = self.control.capture_as_image()
if scalar is not None:
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