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from typing import Any, Literal |
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import gradio as gr |
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DIRECTIONS = Literal["up", "down"] |
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def make_state(value: Any) -> gr.State: |
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"""Make a state from a value.""" |
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if isinstance(value, gr.State): |
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return value |
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else: |
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return gr.State(value) |
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def move_item(items: list, position: int, direction: DIRECTIONS): |
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"""Move an item up or down in a list.""" |
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if not isinstance(items, list): |
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raise ValueError("items must be a list") |
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if not isinstance(position, int) or not (0 <= position < len(items)): |
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raise ValueError("position must be a valid index in the list") |
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if direction not in ["up", "down"]: |
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raise ValueError("direction must be 'up' or 'down'") |
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if direction == "up" and position > 0: |
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items[position], items[position - 1] = items[position - 1], items[position] |
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elif direction == "down" and position < len(items) - 1: |
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items[position], items[position + 1] = items[position + 1], items[position] |
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