42 lines
1.8 KiB
JavaScript
42 lines
1.8 KiB
JavaScript
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export const filterBreakpointKeys = (breakpointsKeys, responsiveKeys) => breakpointsKeys.filter(key => responsiveKeys.includes(key));
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export const traverseBreakpoints = (breakpoints, responsive, iterator) => {
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const smallestBreakpoint = breakpoints.keys[0]; // the keys is sorted from smallest to largest by `createBreakpoints`.
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if (Array.isArray(responsive)) {
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responsive.forEach((breakpointValue, index) => {
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iterator((responsiveStyles, style) => {
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if (index <= breakpoints.keys.length - 1) {
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if (index === 0) {
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Object.assign(responsiveStyles, style);
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} else {
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responsiveStyles[breakpoints.up(breakpoints.keys[index])] = style;
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}
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}
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}, breakpointValue);
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});
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} else if (responsive && typeof responsive === 'object') {
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// prevent null
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// responsive could be a very big object, pick the smallest responsive values
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const keys = Object.keys(responsive).length > breakpoints.keys.length ? breakpoints.keys : filterBreakpointKeys(breakpoints.keys, Object.keys(responsive));
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keys.forEach(key => {
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if (breakpoints.keys.indexOf(key) !== -1) {
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// @ts-ignore already checked that responsive is an object
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const breakpointValue = responsive[key];
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if (breakpointValue !== undefined) {
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iterator((responsiveStyles, style) => {
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if (smallestBreakpoint === key) {
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Object.assign(responsiveStyles, style);
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} else {
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responsiveStyles[breakpoints.up(key)] = style;
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}
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}, breakpointValue);
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}
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}
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});
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} else if (typeof responsive === 'number' || typeof responsive === 'string') {
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iterator((responsiveStyles, style) => {
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Object.assign(responsiveStyles, style);
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}, responsive);
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}
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};
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