有人能帮我吗，我想销毁我以前的媒体上传器框架，并删除他们创建的所有元素以更改媒体文件类型，但我做不到，在最后一次搜索中，我在media editor的评论中找到了。js和媒体视图。来自wordpress文件夹的js，他们用dispose 函数，但在我复制并遵循它之后，dispose什么也不做。我想，如果满足某些条件，dispose可以运行，但我不知道是什么，有人能帮我吗？非常感谢。

这是我制作媒体上传器框架的代码

var $j = jQuery.noConflict();
function call_media_library() {
    var media_uploader;
    $j(document).on(\'click\', \'.video_media_btn\', function(e){
        e.preventDefault();
        var btn_uploader = $j(this);
        //change media type
        var med_type;
        if(btn_uploader.hasClass(\'mp4-media-btn\')){
            media_type=\'video/mp4\';
        }else if(btn_uploader.hasClass(\'webm-media-btn\')){
            media_type=\'video/webm\';
        }else if(btn_uploader.hasClass(\'ogg-media-btn\')){
            media_type=\'video/ogv\';
        }else{
            media_type=\'video\';
        }
        //after I have call media uploader in twice the previous media_uploader cant destroy
        if (media_uploader) {
            //this is not working
            media_uploader.dispose();
        }
        media_uploader = wp.media({ 
            title: \'Upload media\',
            library : { type : media_type},
            multiple: false
        }).on(\'select\', function(e){
            // This will return the selected media from the Media Uploader, the result is an object
            var uploaded_media = media.state().get(\'selection\').first();
            // Convert uploaded_media to a JSON object to make accessing it easier
            var media_url = uploaded_media.toJSON().url;
            // Assign the url value to the input field
            if(btn_uploader.hasClass(\'mp4-media-btn\')){
                btn_uploader.parent().closest(\'.input-group.input-group-xs\').siblings( \'.input-media-display\' ).find(\'.mp4-media-src\').attr("src", media_url);
            }else if(btn_uploader.hasClass(\'webm-media-btn\')){
                btn_uploader.parent().closest(\'.input-group.input-group-xs\').siblings( \'.input-media-display\' ).find(\'.webm-media-src\').attr("src", media_url);
            }else if(btn_uploader.hasClass(\'ogg-media-btn\')){
                btn_uploader.parent().closest(\'.input-group.input-group-xs\').siblings( \'.input-media-display\' ).find(\'.ogg-media-src\').attr("src", media_url);
            }
            btn_uploader.parent().closest(\'.input-group.input-group-xs\').siblings( \'.input-media-display\' ).find(\'video\')[0].load();
        }).open();
    });
}

这是我的wp排队功能。php

add_action( \'wp_enqueue_scripts\', \'insert_script_to_my_plugin\' );
function insert_script_to_my_plugin(){
    wp_enqueue_media();
}

这是来自wp-includes/js/media-editor的代码。js公司

// Destroy the previous gallery frame.
                if ( this.frame ) {
                    this.frame.dispose();
                }
// Store the current frame.
                this.frame = wp.media({
                    frame:     \'post\',
                    state:     state,
                    title:     this.editTitle,
                    editing:   true,
                    multiple:  true,
                    selection: selection
                }).open();