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Disable call button while function is running #139

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merged 1 commit into from
Jan 31, 2021
Merged

Disable call button while function is running #139

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15 changes: 14 additions & 1 deletion magicgui/widgets/_function_gui.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
Optional,
TypeVar,
Union,
cast,
)

from magicgui.application import AppRef
Expand Down Expand Up @@ -176,7 +177,19 @@ def __init__(
text = call_button if isinstance(call_button, str) else "Run"
self._call_button = PushButton(gui_only=True, text=text, name="call_button")
if not auto_call: # (otherwise it already gets called)
self._call_button.changed.connect(lambda e: self.__call__())

def _disable_button_and_call(val):
# disable the call button until the function has finished
self._call_button = cast(PushButton, self._call_button)
self._call_button.enabled = False
t, self._call_button.text = self._call_button.text, "Running..."
try:
self.__call__()
finally:
self._call_button.text = t
self._call_button.enabled = True

self._call_button.changed.connect(_disable_button_and_call)
self.append(self._call_button)

self._result_widget: Optional[LineEdit] = None
Expand Down