Improved Data Selection Dialog for Simplified Workflow Run

[jmchilton]

As part of https://github.com/galaxyproject/galaxy/projects/15 (Simplified Workflow-centric User Experience) we would like to eliminate the history and tool panel as a landing point for certain Galaxy configurations or certain classes of users. To enable this we would like to enhance the data selection dialog to allow uploading data directly from it (or a companion widget beside it in the workflow run). This combined with creating a history per workflow run - would allow us to eliminate the history panel and tool panel in this view of Galaxy. Additionally, we could leverage the input types, collection types, etc.. to provide context-aware uploads to further simplify the user experience. The upload widget would be less daunting if you need to the corresponding upload needed to be a fastqsanger - we could eliminate type selection, composite and collection tabs, do extra validation by default, eliminate some advanced options, etc..

I think some of these issues could be tool form issues instead of the selection widget but I'm tracking them all together here for now. Happy to break them up into more specific issues and just track everything on https://github.com/galaxyproject/galaxy/projects/15

Roughly in order of importance:

• Add upload option to the tool form or selection widget.
• Revise the upload widget to allow more specific upload experience if the target format(s) are known ahead of time.
• Allow restricting upload widget to focus a specific format or set of formats.
• Make data selection parameter a drag/drop target and allow dropping data into this form
• The data dialog can already expose library data and could be extended to allow fetching data from other histories.

As @bgruening pointed out in http://bit.ly/simplified-workflow-ui:

This could also be used to create single-tool interfaces. We do have a lot of tools that are just used once. Visualization tools (like circos) or Annotation tools like antismash would profit from its own view (history, toolbox hidden). This new data selection would make this possible as well.