2025-12-25 upload
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from typing import ClassVar
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class LayoutWidget:
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"""
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All top-level layout widgets and all widgets that may be set in an
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overlay must comply with this API.
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"""
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# Title is only required for windows, not overlay components
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title = ""
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keyctx: ClassVar[str] = ""
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def key_responder(self):
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"""
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Returns the object responding to key input. Usually self, but may be
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a wrapped object.
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"""
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return self
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def focus_changed(self):
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"""
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The view focus has changed. Layout objects should implement the API
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rather than directly subscribing to events.
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"""
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def view_changed(self):
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"""
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The view list has changed.
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"""
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def layout_popping(self):
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"""
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We are just about to pop a window off the stack, or exit an overlay.
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"""
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def layout_pushed(self, prev):
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"""
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We have just pushed a window onto the stack.
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"""
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