30 lines
996 B
JavaScript
30 lines
996 B
JavaScript
/* global hexo */
|
|
|
|
'use strict';
|
|
|
|
hexo.extend.helper.register('next_font', () => {
|
|
const config = hexo.theme.config.font;
|
|
|
|
if (!config || !config.enable) return '';
|
|
|
|
const fontDisplay = '&display=swap';
|
|
const fontSubset = '&subset=latin,latin-ext';
|
|
const fontStyles = ':300,300italic,400,400italic,700,700italic';
|
|
const fontHost = config.host || '//fonts.googleapis.com';
|
|
|
|
//Get a font list from config
|
|
let fontFamilies = ['global', 'title', 'headings', 'posts', 'codes'].map(item => {
|
|
if (config[item] && config[item].family && config[item].external) {
|
|
return config[item].family + fontStyles;
|
|
}
|
|
return '';
|
|
});
|
|
|
|
fontFamilies = fontFamilies.filter(item => item !== '');
|
|
fontFamilies = [...new Set(fontFamilies)];
|
|
fontFamilies = fontFamilies.join('|');
|
|
|
|
// Merge extra parameters to the final processed font string
|
|
return fontFamilies ? `<link rel="stylesheet" href="${fontHost}/css?family=${fontFamilies.concat(fontDisplay, fontSubset)}">` : '';
|
|
});
|