42e6dfa40d
* enable PGH, bump pyright and fix all #type: ignore * relock poetry file * ignore incompatible override * fix varop tests * ignore missing imports * fix * fix stuff * fix tests * rechange tests * relock with poetry 2.0
52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
"""Constants used to compile element classes."""
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from collections import defaultdict
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from reflex.utils import format
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from .html import ATTR_TO_ELEMENTS
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from .react import POSSIBLE_STANDARD_NAMES
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# Maps HTML attributes that are invalid Python identifiers to their Reflex
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# prop equivalents.
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ATTR_TO_PROP_OVERRIDES = {
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"async": "async_", # `async` is a reserved keyword in Python.
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}
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def attr_to_prop(attr_name: str) -> str:
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"""Convert an HTML attribute name to its Reflex name.
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This function first uses React's `possibleStandardNames` to convert the
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HTML attribute name to its standard React name, then converts the standard
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name to a Reflex name.
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Args:
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attr_name: The HTML attribute name.
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Returns:
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A Reflex prop name that maps to the HTML attribute.
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"""
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if attr_name in ATTR_TO_PROP_OVERRIDES:
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return ATTR_TO_PROP_OVERRIDES[attr_name]
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return format.to_snake_case(POSSIBLE_STANDARD_NAMES.get(attr_name, attr_name))
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# Names of HTML attributes that are provided by Reflex out of the box.
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REFLEX_PROVIDED_ATTRS = {"class", "id", "style"}
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# ATTR_TO_ELEMENTS contains HTML attribute names, which might be invalid as
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# Reflex prop names. PROP_TO_ELEMENTS contains the corresponding Reflex
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# prop names. It omits props that are provided by Reflex out of the box.
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PROP_TO_ELEMENTS = {
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attr_to_prop(attr_name): elements
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for attr_name, elements in ATTR_TO_ELEMENTS.items()
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if attr_name not in REFLEX_PROVIDED_ATTRS
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}
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# Invert PROP_TO_ELEMENTS to enable easier lookup.
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ELEMENT_TO_PROPS = defaultdict(list)
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for prop, elements in PROP_TO_ELEMENTS.items():
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for el in elements:
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ELEMENT_TO_PROPS[el].append(prop)
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