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import { css } from "@linaria/core";
import { ComponentChildren, createContext, h, VNode } from "preact";
import { useContext, useMemo, useState } from "preact/hooks";
// eslint-disable-next-line import/extensions
import { Colors } from "../style";
export interface Props {
color: Colors;
disabled: boolean;
error: boolean;
focused: boolean;
fullWidth: boolean;
hiddenLabel: boolean;
required: boolean;
variant: "filled" | "outlined" | "standard";
margin: "none" | "normal" | "dense";
size: "medium" | "small";
children: ComponentChildren;
}
export const root = css`
display: inline-flex;
flex-direction: column;
position: relative;
min-width: 0px;
padding: 0px;
margin: 0px;
border: 0px;
vertical-align: top;
`;
const marginVariant = {
none: "",
normal: css`
margin-top: 16px;
margin-bottom: 8px;
`,
dense: css`
margin-top: 8px;
margin-bottom: 4px;
`,
};
const fullWidthStyle = css`
width: 100%;
`;
export const FormControlContext = createContext<FCCProps | null>(null);
export function FormControl({
color = "primary",
disabled = false,
error = false,
focused: visuallyFocused,
fullWidth = false,
hiddenLabel = false,
margin = "none",
required = false,
size = "medium",
variant = "filled",
children,
}: Partial<Props>): VNode {
const [filled, setFilled] = useState(false);
const [focusedState, setFocused] = useState(false);
const focused =
visuallyFocused !== undefined && !disabled ? visuallyFocused : focusedState;
const value: FCCProps = {
color,
disabled,
error,
filled,
focused,
fullWidth,
hiddenLabel,
size,
onBlur: () => {
setFocused(false);
},
onEmpty: () => {
setFilled(false);
},
onFilled: () => {
setFilled(true);
},
onFocus: () => {
setFocused(true);
},
required,
variant,
};
return (
<div
class={[
root,
marginVariant[margin],
fullWidth ? fullWidthStyle : "",
].join(" ")}
>
<FormControlContext.Provider value={value}>
{children}
</FormControlContext.Provider>
</div>
);
}
export interface FCCProps {
// adornedStart,
// setAdornedStart,
color: Colors;
disabled: boolean;
error: boolean;
filled: boolean;
focused: boolean;
fullWidth: boolean;
hiddenLabel: boolean;
size: "medium" | "small";
onBlur: () => void;
onEmpty: () => void;
onFilled: () => void;
onFocus: () => void;
// registerEffect,
required: boolean;
variant: "filled" | "outlined" | "standard";
}
const defaultContextValue: FCCProps = {
color: "primary",
disabled: false,
error: false,
filled: false,
focused: false,
fullWidth: false,
hiddenLabel: false,
size: "medium",
onBlur: () => null,
onEmpty: () => null,
onFilled: () => null,
onFocus: () => null,
required: false,
variant: "filled",
};
function withoutUndefinedProperties(obj: any): any {
return Object.keys(obj).reduce((acc, key) => {
const _acc: any = acc;
if (obj[key] !== undefined) _acc[key] = obj[key];
return _acc;
}, {});
}
export function useFormControl(props: Partial<FCCProps> = {}): FCCProps {
const ctx = useContext(FormControlContext);
const cleanedProps = withoutUndefinedProperties(props);
return useMemo(() => {
return !ctx
? { ...defaultContextValue, ...cleanedProps }
: { ...ctx, ...cleanedProps };
}, [cleanedProps, ctx]);
}
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