3

对于使用 WordPress 的媒体上传器上传的图像,有一个“插入到帖子”按钮,用于向编辑器发送该图像的短代码。

我有一个文本输入,当聚焦时,我希望媒体上传器出现,以便用户可以选择图像并将文件 URL 发送到文本输入。

我遇到的主要问题是创建附加的“插入帖子”按钮,将文件 URL 发送到相应的文本字段。

我应该使用哪个钩子,如何将文件 URL 数据返回到输入字段?

感谢您的指导!

4

2 回答 2

3

你所描述的是旧的 Wordpress 做它的方式......如果你想在 Wordpress 3.5+ 中使用新的上传器,你可以创建一个wp.media对象来上传它,类似于 wp-admin/js/custom 中的代码-background.js:

           // Create the media frame.
            frame = wp.media.frames.customBackground = wp.media({
                // Set the title of the modal.
                title: $el.data('choose'),

                // Tell the modal to show only images.
                library: {
                    type: 'image'
                },

                // Customize the submit button.
                button: {
                    // Set the text of the button.
                    text: $el.data('update'),
                    // Tell the button not to close the modal, since we're
                    // going to refresh the page when the image is selected.
                    close: false
                }
            });

            // When an image is selected, run a callback.
            frame.on( 'select', function() {
                // Grab the selected attachment.
                var attachment = frame.state().get('selection').first();

                // Run an AJAX request to set the background image.
                $.post( ajaxurl, {
                    action: 'set-background-image',
                    attachment_id: attachment.id,
                    size: 'full'
                }).done( function() {
                    // When the request completes, reload the window.
                    window.location.reload();
                });
            });

            // Finally, open the modal.
            frame.open();

选择frame.on('select' function(){文件时运行代码。

于 2013-01-09T05:14:54.220 回答
1

进一步搜索,我找到了一些很好的资源来解释如何做到这一点。我选择了 JavaScript、PHP 组合:

JavaScript

$j('input').live('focusin',function(){

    var target = '#'+$j(this).attr('id');

    tb_show('','media-upload.php?post_id=[post_id]&tab=gallery&context=choose&TB_iframe=1');

    window.send_to_editor = function(html) {            

        fileurl = $j(html).attr('href');
        $j(target).val(fileurl);
        tb_remove();

    };

});

来源:http: //jaspreetchahal.org/wordpress-using-media-uploader-in-your-plugin/

PHP

/* Customize button */

function media_uploader_btn($form_fields, $post) {

    $send = "<input type='submit' class='button' name='send[$post->ID]' value='" . esc_attr__( 'Choose This File' ) . "' />";

    $form_fields['buttons'] = array('tr' => "\t\t<tr class='submit'><td></td><td class='savesend'>$send</td></tr>\n");
    $form_fields['context'] = array( 'input' => 'hidden', 'value' => 'choose' );

    return $form_fields;

}

/* Check for button context */

function check_upload_image_context($context){

    if(isset($_REQUEST['context']) && $_REQUEST['context'] == $context){

        return true;

    } elseif(isset($_POST['attachments']) && is_array($_POST['attachments'])){

        /* check for context in attachment objects */

        $image_data = current($_POST['attachments']);

        if (isset($image_data['context']) && $image_data['context'] == $context ){

            return true;

        }

    }

    return false;
}


if(check_upload_image_context('choose')){

    add_filter('attachment_fields_to_edit', 'media_uploader_btn', 20, 2);

}

来源:http ://shibashake.com/wordpress-theme/how-to-hook-into-the-media-upload-popup-interface

于 2012-11-08T07:06:49.747 回答