It would be great if ZenPhoto had a better file uploading script that could select multiple files for upload at once rather than selecting every file, as it is now.
I find a way Wordpress deals with this good. If I'm not mistaking, wordpress uses a script named Flashuploader or SWFUploader or something like that.
P.S. Or did I miss some plugin that implements this?
It already exists in the basic implementation (it might be through a plug-in that comes with the default installation, but I doubt it).
Basically, there are three ways to upload content, through Upload –> images. The upload handler is selected at the bottom of that window:
– http is the most basic one. Works all the time and everywhere, but you have to select each and every file.
– flash works very well... on computers that have flash installed. Once you click on "Select files", it is possible to select multiple files (control-click) or multiple consecutive files (shift-click).
– jQuery works fine on the developpers' computers and websites but not on my installations, so we suspect it depends on the versions of Apache and other gremlins. Once you click on "Add files", it's basically similar to Flash.
It is also possible to upload a zip file through the same protocols (meaning you may upload many photos in a zip file) and to upload directly on the server via your FTP software.
All these options are available for administrators and other users with full privileges. Other users may be restricted, although I think that once one is authorized to upload images, one is automatically authorized to upload them with all three protocols
Just to note: The three backend upload methods are standard built in and not plugins. If your upload page does not look like this you probably running an quite outdated Zenphoto version:
http://www.zenphoto.org/screenshots/zenphoto-1.4.2-admin/upload-gallery.jpg.php