[wp-trac] [WordPress Trac] #14829: More hooks/actions required for Media Uploader

[WordPress Trac]

#14829: More hooks/actions required for Media Uploader
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 Reporter:  Alhadis                        |       Owner:
     Type:  enhancement                    |      Status:  new
 Priority:  normal                         |   Milestone:  Awaiting Review
Component:  Upload                         |     Version:  3.0.1
 Severity:  normal                         |  Resolution:
 Keywords:  needs-patch reporter-feedback  |
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Comment (by martythornley):

 There are hooks to control what you can do with images uploaded through
 the thickbox window. It just is really tough to find and not at all
 intuitive. The real problem is that the functions in media.php are very
 confusing and redundant and it takes following a thread of function to
 function to function to track down what is doing what.

 It is easy enough to add your own tabs to the thickbox but if you want to
 add say an extra checkbox or setting to each image within the current list
 of uploaded images, that would need some hooks. As mentioned in the ticket
 description, I had to resort to javascript to insert some checkboxes.

 For example, I will attach a zipped plugin that I wrote to allow bulk
 insert of images. It uses the following

 {{{
         add_filter ( 'media_upload_image' ,
 'bulk_image_alter_image_uploads');
         add_filter ( 'media_upload_gallery' ,
 'bulk_image_alter_image_uploads' );
         add_filter ( 'media_upload_library' ,
 'bulk_image_alter_image_uploads' );
 }}}

 Then the bulk_image_alter_image_uploads() function returns either a custom
 function ( bulk_image_insert_to_editor() ) that mimics the built in one or
 adds another filter so other plugins can hook in. So in another plugin for
 image galleries, I used this new hook to interrupt the upload process and
 send images to my own folder instead of the standard uploads folder, then
 sent them back to a metabox instead of the editor.

 The bulk_image_insert_to_editor() handles the uploads, then returns
 another mimic function bulk_image_fast_insert_to_editor() instead of the
 core insert to editor function.

 So I guess it would be nice if all those steps had a hook in it, so that
 any one could be replaced, whereas I had to replace all three?

 It is related to http://core.trac.wordpress.org/ticket/21329, where I
 tried to consolidate at least the initial hooks a little but I think that
 whole set of functions in media.php could use some refining.

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Ticket URL: <http://core.trac.wordpress.org/ticket/14829#comment:8>
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