Upload multiple files to repo via web-interface

Updated by @blackst0ne (2017-05-30)

Design

Illustrations

1. illustration-uploading-files.svg
2. illustration-uploading-files-failed.svg

Dropdown

• Use Upload "files" directly as Upload files means you can upload a single file and multiple files.

Upload files modal - no files

• Illustration: illustration-uploading-files.svg

Upload files modal - multiple files

• If the file name is very long, the file name will be truncated.

• Show the first and last text of the name and the extension name.

• After clicking "Close", the files in the modal should be removed.
• Add "Clean queue" button.
• All types of files should have to show the images. Currently, text files show nothing, but the image files show the image. That makes the screen look a little messy.

• text file --> fa-file-text-o icon from Font Awesome.

Uploading error

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Original proposal

in the Files section of a project, i can upload single files (selecting the + symbol and then choosing Upload file in the pull-down menu).

this gives me a drag&drop panel where i can drop a single file.

however, when trying to add more than one file, i get:

Error uploading file: "You can not upload any more files."

I find this a bit disappointing (as there is no problem to add multiple files in one commit when doing it via git).

tested on gitlab-ce omnibus 8.4.3 and confirmed today on gitlab.com