085b761f6b
* delete most references to varr * [REF-3562][REF-3563] Replace chakra usage (#3872) * only one mention of var * delete vars.py why not * remove reflex.vars * rename immutable var to var * rename ivars to vars * add vars back smh * ruff * no more create_safe * reorder deprecated * remove raises * remove all Var.create * move to new api * fix unit tests * fix pyi hopefully * sort literals * fix event handler issues * update poetry * fix silly issues i'm very silly * add var_operation_return * rename immutable to not immutable * add str type * it's ruff out there --------- Co-authored-by: Elijah Ahianyo <elijahahianyo@gmail.com>
92 lines
2.2 KiB
Python
92 lines
2.2 KiB
Python
"""Add standard Hooks wrapper for React."""
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from __future__ import annotations
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from reflex.utils.imports import ImportVar
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from reflex.vars import VarData
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from reflex.vars.base import Var
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def _compose_react_imports(tags: list[str]) -> dict[str, list[ImportVar]]:
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return {"react": [ImportVar(tag=tag) for tag in tags]}
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def const(name, value) -> Var:
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"""Create a constant Var.
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Args:
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name: The name of the constant.
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value: The value of the constant.
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Returns:
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The constant Var.
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"""
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if isinstance(name, list):
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return Var(_js_expr=f"const [{', '.join(name)}] = {value}")
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return Var(_js_expr=f"const {name} = {value}")
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def useCallback(func, deps) -> Var:
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"""Create a useCallback hook with a function and dependencies.
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Args:
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func: The function to wrap.
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deps: The dependencies of the function.
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Returns:
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The useCallback hook.
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"""
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return Var(
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_js_expr=f"useCallback({func}, {deps})" if deps else f"useCallback({func})",
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_var_data=VarData(imports=_compose_react_imports(["useCallback"])),
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)
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def useContext(context) -> Var:
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"""Create a useContext hook with a context.
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Args:
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context: The context to use.
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Returns:
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The useContext hook.
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"""
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return Var(
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_js_expr=f"useContext({context})",
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_var_data=VarData(imports=_compose_react_imports(["useContext"])),
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)
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def useRef(default) -> Var:
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"""Create a useRef hook with a default value.
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Args:
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default: The default value of the ref.
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Returns:
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The useRef hook.
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"""
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return Var(
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_js_expr=f"useRef({default})",
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_var_data=VarData(imports=_compose_react_imports(["useRef"])),
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)
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def useState(var_name, default=None) -> Var:
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"""Create a useState hook with a variable name and setter name.
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Args:
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var_name: The name of the variable.
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default: The default value of the variable.
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Returns:
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A useState hook.
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"""
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return const(
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[var_name, f"set{var_name.capitalize()}"],
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Var(
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_js_expr=f"useState({default})",
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_var_data=VarData(imports=_compose_react_imports(["useState"])),
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),
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)
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