首先,您需要将 WordPress 核心媒体脚本和自定义 js 脚本排入队列
function my_enqueue_media_lib_uploader() {
//Core media script
wp_enqueue_media();
// Your custom js file
wp_register_script( 'media-lib-uploader-js', plugins_url( 'media-lib-uploader.js' , __FILE__ ), array('jquery') );
wp_enqueue_script( 'media-lib-uploader-js' );
}
add_action('admin_enqueue_scripts', 'my_enqueue_media_lib_uploader');
然后假设您的选项页面中有此标记:一个上传按钮和一个用于存储所选图像 URL 的文本输入
<form method="post">
<input id="image-url" type="text" name="image" />
<input id="upload-button" type="button" class="button" value="Upload Image" />
<input type="submit" value="Submit" />
</form>
您需要添加此 JavaScript 代码来调用上传器弹出窗口
jQuery(document).ready(function($){
var mediaUploader;
$('#upload-button').click(function(e) {
e.preventDefault();
// If the uploader object has already been created, reopen the dialog
if (mediaUploader) {
mediaUploader.open();
return;
}
// Extend the wp.media object
mediaUploader = wp.media.frames.file_frame = wp.media({
title: 'Choose Image',
button: {
text: 'Choose Image'
}, multiple: false });
// When a file is selected, grab the URL and set it as the text field's value
mediaUploader.on('select', function() {
attachment = mediaUploader.state().get('selection').first().toJSON();
$('#image-url').val(attachment.url);
});
// Open the uploader dialog
mediaUploader.open();
});
});
选择图像后,您的图片地址输入现在将包含 url 并将保存在表单提交中。