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getPageContext.js
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getPageContext.js
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/* eslint-disable no-underscore-dangle */
import { SheetsRegistry } from 'jss';
import { createMuiTheme, createGenerateClassName } from 'material-ui/styles';
import purple from 'material-ui/colors/purple';
import green from 'material-ui/colors/green';
// A theme with custom primary and secondary color.
// It's optional.
const theme = createMuiTheme({
palette: {
primary: purple,
secondary: green,
},
});
function createPageContext() {
return {
theme,
// This is needed in order to deduplicate the injection of CSS in the page.
sheetsManager: new Map(),
// This is needed in order to inject the critical CSS.
sheetsRegistry: new SheetsRegistry(),
// The standard class name generator.
generateClassName: createGenerateClassName(),
};
}
export default function getPageContext() {
// Make sure to create a new context for every server-side request so that data
// isn't shared between connections (which would be bad).
if (!process.browser) {
return createPageContext();
}
// Reuse context on the client-side.
if (!global.__INIT_MATERIAL_UI__) {
global.__INIT_MATERIAL_UI__ = createPageContext();
}
return global.__INIT_MATERIAL_UI__;
}