问题描述
我已经在我的 WordPress 网站添加了一个.ico
mime 类型,我可以上传 favicon 文件。但媒体库仅显示这些图像的 default.png
图像,还可以在定制程序中显示。如何让 WordPress 在媒体库和定制工具中显示这些图标?
最佳解决方案
默认值
这是如何在媒体网格视图中显示的图标 (.ico
) 文件:
这是微模板的对应部分:
<# } else if ( 'image' === data.type && data.sizes ) { #>
<div class="centered">
<img src="{{ data.size.url }}" draggable="false" alt="" />
</div>
<# } else { #>
<div class="centered">
<# if ( data.image && data.image.src && data.image.src !== data.icon ) { #>
<img src="{{ data.image.src }}" class="thumbnail" draggable="false" />
<# } else { #>
<img src="{{ data.icon }}" class="icon" draggable="false" />
<# } #>
</div>
<div class="filename">
<div>{{ data.filename }}</div>
</div>
<# } #>
其中 data.sizes
对于 favicons 是空的。
方法 1) 使用 wp_mime_type_icon
过滤器
favic 的 mime 类型是 image/x-icon
。
我设法在 Media Grid 视图中显示.ico
文件:
add_filter( 'wp_mime_type_icon', function( $icon, $mime, $post_id )
{
if( $src = false || 'image/x-icon' === $mime && $post_id > 0 )
$src = wp_get_attachment_image_src( $post_id );
return is_array( $src ) ? array_shift( $src ) : $icon;
}, 10, 3 );
这里重要的是将 wp_get_attachment_image_src
的第三个参数保留为 $icon = false
(默认情况下),以避免无限循环!
然后,favicons 将显示如下:
方法 2) 使用 wp_prepare_attachment_for_js
过滤器
加载媒体网格视图时,我们调用 wp_ajax_query_attachments
处理程序。它执行以下附件查询:
$query = new WP_Query( $query );
$posts = array_map( 'wp_prepare_attachment_for_js', $query->posts );
在这个 wp_prepare_attachment_for_js
功能中,各种信息被添加到 WP_Post
的帖子中,它们被过滤:
return apply_filters( 'wp_prepare_attachment_for_js', $response, $attachment, $meta );
其输出为 $response
阵列。
我们可以使用此过滤器添加缺少的空格:
add_filter( 'wp_prepare_attachment_for_js', function( $response, $attachment, $meta )
{
if( 'image/x-icon' === $response['mime']
&& isset( $response['url'] )
&& ! isset( $response['sizes']['full'] )
)
{
$response['sizes'] = array( 'full' => array( 'url' => $response['url'] ) );
}
return $response;
}, 10, 3 );
他们会显示如下:
请注意,我们只设置 url
部件,而不是 width
,height
和 orientation
。例如,在 wp_get_attachment_image_src()
功能的帮助下,我们可以进一步扩展解决方案来添加这些数据。但我离开了你;-)
一些 $response
的例子:
以下是 favicon.ico
文件的 $response
阵列示例:
Array
(
[id] => 803
[title] => favicon
[filename] => favicon.ico
[url] => http://example.tld/wp-content/uploads/2015/02/favicon.ico
[link] => http://example.tld/?attachment_id=803
[alt] =>
[author] => 11
[description] =>
=>
[name] => favicon
[status] => inherit
[uploadedTo] => 0
[date] => 1423791136000
[modified] => 1423791136000
[menuOrder] => 0
[mime] => image/x-icon
[type] => image
[subtype] => x-icon
[icon] => http://example.tld/wp-includes/images/media/default.png
[dateFormatted] => February 13, 2015
[nonces] => Array
(
[update] => 4fac983f49
[delete] => efd563466d
[edit] => df266bf556
)
[editLink] => http://example.tld/wp-admin/post.php?post=803&action=edit
[meta] =>
[authorName] => someuser
[filesizeInBytes] => 1406
[filesizeHumanReadable] => 1 kB
[compat] => Array
(
[item] =>
[meta] =>
)
)
以下是 WordPress-Logo.jpg
图像的示例:
Array
(
[id] => 733
[title] => WordPress-Logo
[filename] => WordPress-Logo.jpg
[url] => http://example.tld/wp-content/uploads/2015/02/WordPress-Logo.jpg
[link] => http://example.tld/2015/02/10/test/wordpress-logo/
[alt] =>
[author] => 1
[description] =>
=>
[name] => wordpress-logo
[status] => inherit
[uploadedTo] => 784
[date] => 1423314735000
[modified] => 1423571320000
[menuOrder] => 0
[mime] => image/jpeg
[type] => image
[subtype] => jpeg
[icon] => http://example.tld/wp-includes/images/media/default.png
[dateFormatted] => February 7, 2015
[nonces] => Array
(
[update] => cb6a4bca10
[delete] => 068a4d3897
[edit] => 14b7d201ff
)
[editLink] => http://example.tld/wp-admin/post.php?post=733&action=edit
[meta] =>
[authorName] => someuser
[uploadedToLink] => http://example.tld/wp-admin/post.php?post=784&action=edit
[uploadedToTitle] => 20150209021847
[filesizeInBytes] => 127668
[filesizeHumanReadable] => 125 kB
[sizes] => Array
(
[thumbnail] => Array
(
[height] => 150
[width] => 150
[url] => http://example.tld/wp-content/uploads/2015/02/WordPress-Logo-150x150.jpg
[orientation] => landscape
)
[medium] => Array
(
[height] => 184
[width] => 300
[url] => http://example.tld/wp-content/uploads/2015/02/WordPress-Logo-300x184.jpg
[orientation] => landscape
)
[full] => Array
(
[url] => http://example.tld/wp-content/uploads/2015/02/WordPress-Logo.jpg
[height] => 620
[width] => 1010
[orientation] => landscape
)
)
[height] => 620
[width] => 1010
[orientation] => landscape
[compat] => Array
(
[item] =>
[meta] =>
)
)
ps:我们对这些例子中的 $response['size']
有一定的兴趣。
参考文献
注:本文内容整合自 Google/Baidu/Bing 辅助翻译的英文资料结果。如果您对结果不满意,可以加入我们改善翻译效果:薇晓朵技术论坛。