88 lines
3.1 KiB
JavaScript
88 lines
3.1 KiB
JavaScript
/**
|
|
* Helper functions for page/post.
|
|
*
|
|
* @example
|
|
* <%- is_categories(page) %>
|
|
* <%- is_tags(page) %>
|
|
* <%- page_title(page) %>
|
|
* <%- has_thumbnail(post) %>
|
|
* <%- get_thumbnail(post) %>
|
|
* <%- get_og_image(post) %>
|
|
*/
|
|
module.exports = function (hexo) {
|
|
hexo.extend.helper.register('is_categories', function (page = null) {
|
|
return (page === null ? this.page : page).__categories;
|
|
});
|
|
|
|
hexo.extend.helper.register('is_tags', function (page = null) {
|
|
return (page === null ? this.page : page).__tags;
|
|
});
|
|
|
|
/**
|
|
* Generate html head title based on page type
|
|
*/
|
|
hexo.extend.helper.register('page_title', function (page = null) {
|
|
page = page === null ? this.page : page;
|
|
let title = page.title;
|
|
|
|
if (this.is_archive()) {
|
|
title = this._p('common.archive', Infinity);
|
|
if (this.is_month()) {
|
|
title += ': ' + page.year + '/' + page.month;
|
|
} else if (this.is_year()) {
|
|
title += ': ' + page.year;
|
|
}
|
|
} else if (this.is_category()) {
|
|
title = this._p('common.category', 1) + ': ' + page.category;
|
|
} else if (this.is_tag()) {
|
|
title = this._p('common.tag', 1) + ': ' + page.tag;
|
|
} else if (this.is_categories()) {
|
|
title = this._p('common.category', Infinity);
|
|
} else if (this.is_tags()) {
|
|
title = this._p('common.tag', Infinity);
|
|
}
|
|
|
|
const siteTitle = hexo.extend.helper.get('get_config').bind(this)('title', '', true);
|
|
return [title, siteTitle].filter(str => typeof (str) !== 'undefined' && str.trim() !== '').join(' - ');
|
|
});
|
|
|
|
hexo.extend.helper.register('has_thumbnail', function (post) {
|
|
const getConfig = hexo.extend.helper.get('get_config').bind(this);
|
|
const allowThumbnail = getConfig('article.thumbnail', true);
|
|
if (!allowThumbnail) {
|
|
return false;
|
|
}
|
|
return post.hasOwnProperty('thumbnail') && post.thumbnail;
|
|
});
|
|
|
|
hexo.extend.helper.register('get_thumbnail', function (post) {
|
|
const hasThumbnail = hexo.extend.helper.get('has_thumbnail').bind(this)(post);
|
|
return this.url_for(hasThumbnail ? post.thumbnail : 'images/thumbnail.svg');
|
|
});
|
|
|
|
hexo.extend.helper.register('has_og_image', function (post) {
|
|
return post.hasOwnProperty('og_image');
|
|
});
|
|
|
|
hexo.extend.helper.register('get_og_image', function (post) {
|
|
const getConfig = hexo.extend.helper.get('get_config').bind(this);
|
|
const hasConfig = hexo.extend.helper.get('has_config').bind(this);
|
|
|
|
const hasOGImage = hexo.extend.helper.get('has_og_image').bind(this)(post);
|
|
const hasThumbnail = hexo.extend.helper.get('has_thumbnail').bind(this)(post);
|
|
|
|
const getThumbnail = hexo.extend.helper.get('get_thumbnail').bind(this);
|
|
|
|
let og_image
|
|
|
|
if (hasOGImage)
|
|
og_image = post.og_image
|
|
else if (hasThumbnail)
|
|
og_image = getThumbnail(post);
|
|
else
|
|
og_image = getConfig('article.og_image', '/images/og_image.png');
|
|
|
|
return this.url_for(og_image);
|
|
});
|
|
}
|