blog/themes/next/scripts/helpers/engine.js

120 lines
4.3 KiB
JavaScript

/* global hexo */
'use strict';
const crypto = require('crypto');
const { parse } = require('url');
const nextFont = require('./font');
const nextUrl = require('./next-url');
const { getVendors } = require('../events/lib/utils');
hexo.extend.helper.register('next_font', nextFont);
hexo.extend.helper.register('next_url', nextUrl);
hexo.extend.helper.register('next_inject', function(point) {
return this.theme.injects[point]
.map(item => this.partial(item.layout, item.locals, item.options))
.join('');
});
hexo.extend.helper.register('next_js', function(file, {
pjax = false,
module = false
} = {}) {
const { next_version } = this;
const { internal, custom_cdn_url } = this.theme.vendors;
const links = getVendors({
name : 'hexo-theme-next',
version : next_version,
file : 'source/js/' + file,
minified: 'source/js/' + file.replace(/\.js$/, '.min.js'),
local : this.url_for(`${this.theme.js}/${file}`),
custom : custom_cdn_url
});
const src = links[internal] || links.local;
return `<script ${pjax ? 'data-pjax ' : ''}${module ? 'type="module" ' : ''}src="${src}" defer></script>`;
});
hexo.extend.helper.register('next_vendors', function(name) {
const { url, integrity } = this.theme.vendors[name];
const type = url.endsWith('css') ? 'css' : 'js';
if (type === 'css') {
if (integrity) return `<link rel="stylesheet" href="${url}" integrity="${integrity}" crossorigin="anonymous">`;
return `<link rel="stylesheet" href="${url}">`;
}
if (integrity) return `<script src="${url}" integrity="${integrity}" crossorigin="anonymous" defer></script>`;
return `<script src="${url}" defer></script>`;
});
hexo.extend.helper.register('next_data', function(name, ...data) {
const json = data.length === 1 ? data[0] : Object.assign({}, ...data);
return `<script class="next-config" data-name="${name}" type="application/json">${
JSON.stringify(json).replace(/</g, '\\u003c')
}</script>`;
});
hexo.extend.helper.register('next_pre', function() {
if (!this.theme.preconnect) return '';
const { enable, host } = this.theme.font;
const { internal, plugins, custom_cdn_url } = this.theme.vendors;
const links = {
local : this.theme.js && parse(this.theme.js).hostname ? parse(this.theme.js).protocol + '//' + parse(this.theme.js).hostname : '',
jsdelivr: 'https://cdn.jsdelivr.net',
unpkg : 'https://unpkg.com',
cdnjs : 'https://cdnjs.cloudflare.com',
custom : custom_cdn_url && parse(custom_cdn_url).hostname ? parse(custom_cdn_url).protocol + '//' + parse(custom_cdn_url).hostname : ''
};
const h = enable ? host || 'https://fonts.googleapis.com' : '';
const i = links[internal];
const p = links[plugins];
return [...new Set([h, i, p].filter(origin => origin))].map(
origin => `<link rel="preconnect" href="${origin}" crossorigin>`
).join('\n');
});
hexo.extend.helper.register('post_gallery', function(photos) {
if (!photos || !photos.length) return '';
const content = photos.map(photo => `
<div class="post-gallery-image">
<img src="${this.url_for(photo)}" itemprop="contentUrl">
</div>`).join('');
return `<div class="post-gallery" itemscope itemtype="http://schema.org/ImageGallery">
${content}
</div>`;
});
hexo.extend.helper.register('post_edit', function(src) {
const { post_edit } = this.theme;
if (!post_edit.enable) return '';
return this.next_url(post_edit.url + src, '<i class="fa fa-pen-nib"></i>', {
class: 'post-edit-link',
title: this.__('post.edit')
});
});
hexo.extend.helper.register('post_count', function(year) {
return this.site.posts.filter(post => this.date(post.date, 'YYYY') === year).count();
});
hexo.extend.helper.register('gitalk_md5', function(path) {
const str = this.url_for(path);
return crypto.createHash('md5').update(str).digest('hex');
});
/**
* Get page path given a certain language tag
*/
hexo.extend.helper.register('i18n_path', function(language) {
const { path, lang } = this.page;
const base = path.startsWith(lang) ? path.slice(lang.length + 1) : path;
return this.url_for(`${this.languages.indexOf(language) === 0 ? '' : '/' + language}/${base}`);
});
/**
* Get the language name
*/
hexo.extend.helper.register('language_name', function(language) {
const name = hexo.theme.i18n.__(language)('name');
return name === 'name' ? language : name;
});