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gridGenerator.ts
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gridGenerator.ts
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import { Breakpoints, Breakpoint } from '../createTheme/createBreakpoints';
import { Spacing } from '../createTheme/createSpacing';
import { ResponsiveStyleValue } from '../styleFunctionSx';
import { GridDirection, GridOwnerState } from './GridProps';
interface Props {
theme: { breakpoints: Breakpoints; spacing?: Spacing };
ownerState: GridOwnerState & { parentDisableEqualOverflow?: boolean };
}
interface Iterator<T> {
(appendStyle: (responsizeStyles: Record<string, any>, style: object) => void, value: T): void;
}
export const traverseBreakpoints = <T = unknown>(
breakpoints: Breakpoints,
responsize: T | T[] | Record<string, any> | undefined,
iterator: Iterator<T>,
) => {
const smallestBreakpoint = breakpoints.keys[0]; // the keys is sorted from smallest to largest by `createBreakpoints`.
if (Array.isArray(responsize)) {
responsize.forEach((breakpointValue, index) => {
iterator((responsizeStyles, style) => {
if (index <= breakpoints.keys.length - 1) {
if (index === 0) {
Object.assign(responsizeStyles, style);
} else {
responsizeStyles[breakpoints.up(breakpoints.keys[index])] = style;
}
}
}, breakpointValue as T);
});
} else if (responsize && typeof responsize === 'object') {
// prevent null
// responsize could be a very big object, pick the smallest responsive values
const keys =
Object.keys(responsize).length > breakpoints.keys.length
? breakpoints.keys
: Object.keys(responsize);
keys.forEach((key) => {
if (breakpoints.keys.indexOf(key as Breakpoint) !== -1) {
// @ts-ignore already checked that responsize is an object
const breakpointValue: T = responsize[key];
if (breakpointValue !== undefined) {
iterator((responsizeStyles, style) => {
if (smallestBreakpoint === key) {
Object.assign(responsizeStyles, style);
} else {
responsizeStyles[breakpoints.up(key as Breakpoint)] = style;
}
}, breakpointValue);
}
}
});
} else if (typeof responsize === 'number' || typeof responsize === 'string') {
iterator((responsizeStyles, style) => {
Object.assign(responsizeStyles, style);
}, responsize);
}
};
export const generateGridSizeStyles = ({ theme, ownerState }: Props) => {
const styles = {};
traverseBreakpoints<'auto' | number | true>(
theme.breakpoints,
ownerState.gridSize,
(appendStyle, value) => {
let style = {};
if (value === true) {
style = {
flexBasis: 0,
flexGrow: 1,
maxWidth: '100%',
};
}
if (value === 'auto') {
style = {
flexBasis: 'auto',
flexGrow: 0,
flexShrink: 0,
maxWidth: 'none',
width: 'auto',
};
}
if (typeof value === 'number') {
style = {
flexGrow: 0,
flexBasis: 'auto',
width: `calc(100% * ${value} / var(--Grid-columns)${
ownerState.nested && ownerState.container ? ` + var(--Grid-columnSpacing)` : ''
})`,
};
}
appendStyle(styles, style);
},
);
return styles;
};
export const generateGridOffsetStyles = ({ theme, ownerState }: Props) => {
const styles = {};
traverseBreakpoints<number | 'auto'>(
theme.breakpoints,
ownerState.gridOffset,
(appendStyle, value) => {
let style = {};
if (value === 'auto') {
style = {
marginLeft: 'auto',
};
}
if (typeof value === 'number') {
style = {
marginLeft: value === 0 ? '0px' : `calc(100% * ${value} / var(--Grid-columns))`,
};
}
appendStyle(styles, style);
},
);
return styles;
};
export const generateGridColumnsStyles = ({ theme, ownerState }: Props) => {
if (!ownerState.container) {
return {};
}
const styles = { '--Grid-columns': 12 };
traverseBreakpoints<number>(theme.breakpoints, ownerState.columns, (appendStyle, value) => {
appendStyle(styles, { '--Grid-columns': value });
});
return styles;
};
export const generateGridRowSpacingStyles = ({ theme, ownerState }: Props) => {
if (!ownerState.container) {
return {};
}
const styles = {};
traverseBreakpoints<number | string>(
theme.breakpoints,
ownerState.rowSpacing,
(appendStyle, value) => {
appendStyle(styles, {
'--Grid-rowSpacing': typeof value === 'string' ? value : theme.spacing?.(value),
});
},
);
return styles;
};
export const generateGridColumnSpacingStyles = ({ theme, ownerState }: Props) => {
if (!ownerState.container) {
return {};
}
const styles = {};
traverseBreakpoints<number | string>(
theme.breakpoints,
ownerState.columnSpacing,
(appendStyle, value) => {
appendStyle(styles, {
'--Grid-columnSpacing': typeof value === 'string' ? value : theme.spacing?.(value),
});
},
);
return styles;
};
export const generateGridDirectionStyles = ({ theme, ownerState }: Props) => {
if (!ownerState.container) {
return {};
}
const styles = {};
traverseBreakpoints<number | string>(
theme.breakpoints,
ownerState.direction,
(appendStyle, value) => {
appendStyle(styles, { flexDirection: value });
},
);
return styles;
};
export const generateGridStyles = ({ ownerState }: Props): {} => {
return {
minWidth: 0,
boxSizing: 'border-box',
...(ownerState.container
? {
display: 'flex',
flexWrap: 'wrap',
...(ownerState.wrap &&
ownerState.wrap !== 'wrap' && {
flexWrap: ownerState.wrap,
}),
margin: `calc(var(--Grid-rowSpacing) / -2) calc(var(--Grid-columnSpacing) / -2)`,
...(ownerState.disableEqualOverflow && {
margin: `calc(var(--Grid-rowSpacing) * -1) 0px 0px calc(var(--Grid-columnSpacing) * -1)`,
}),
...(ownerState.nested
? {
padding: `calc(var(--Grid-nested-rowSpacing) / 2) calc(var(--Grid-nested-columnSpacing) / 2)`,
...((ownerState.disableEqualOverflow || ownerState.parentDisableEqualOverflow) && {
padding: `calc(var(--Grid-nested-rowSpacing)) 0px 0px calc(var(--Grid-nested-columnSpacing))`,
}),
}
: {
'--Grid-nested-rowSpacing': 'var(--Grid-rowSpacing)',
'--Grid-nested-columnSpacing': 'var(--Grid-columnSpacing)',
}),
}
: {
padding: `calc(var(--Grid-rowSpacing) / 2) calc(var(--Grid-columnSpacing) / 2)`,
...(ownerState.disableEqualOverflow && {
padding: `calc(var(--Grid-rowSpacing)) 0px 0px calc(var(--Grid-columnSpacing))`,
}),
}),
};
};
export const generateSizeClassNames = (gridSize: GridOwnerState['gridSize']) => {
const classNames: string[] = [];
Object.entries(gridSize).forEach(([key, value]) => {
if (value !== false && value !== undefined) {
classNames.push(`grid-${key}-${String(value)}`);
}
});
return classNames;
};
export const generateSpacingClassNames = (
spacing: GridOwnerState['spacing'],
smallestBreakpoint: string = 'xs',
) => {
function isValidSpacing(val: GridOwnerState['spacing'] | null) {
if (val === undefined) {
return false;
}
return (
(typeof val === 'string' && !Number.isNaN(Number(val))) ||
(typeof val === 'number' && val > 0)
);
}
if (isValidSpacing(spacing)) {
return [`spacing-${smallestBreakpoint}-${String(spacing)}`];
}
if (typeof spacing === 'object' && !Array.isArray(spacing)) {
const classNames: string[] = [];
Object.entries(spacing).forEach(([key, value]) => {
if (isValidSpacing(value)) {
classNames.push(`spacing-${key}-${String(value)}`);
}
});
return classNames;
}
return [];
};
export const generateDirectionClasses = (
direction: ResponsiveStyleValue<GridDirection> | undefined,
): string[] => {
if (direction === undefined) {
return [];
}
if (typeof direction === 'object') {
return Object.entries(direction).map(([key, value]) => `direction-${key}-${value}`);
}
return [`direction-xs-${String(direction)}`];
};