Inline editing of File Block

[brynwhyman]

User Story

As a CMS user, I want to be able to edit the contents of a file list block within a page context, so that I can edit the block more efficiently.

Acceptance Criteria

• [x] The block can be expanded and collapsed
• [x] The editable features currently available for a file list block are present for inline editing, including:
  • Title (and a checkbox to display or hide it)
  • Files section allowing user to upload a file via Browse or Add from files
• [x] A list of files selected to be included in the block are displayed.
• [x] Files that have been successfully uploaded display a green tick to the user.
• [ ] The following information is displayed in the file list for each file:
  • Thumbnail image
  • File name
  • File size
  • File type
• [x] Clicking ‘Save’ at the page level saves the current content entered in the block.
• [x] Clicking ‘Publish’ at the page level publishes the current content entered in the block.
• [x] Styling as per wireframe: https://projects.invisionapp.com/share/ZRL4T2HQAGB#/screens/301923216

[brynwhyman]

The bulk of inline editing work will likely cover the ACs covered here. Wait for the below to be complete before proceeding with this issue: https://github.com/dnadesign/silverstripe-elemental/issues/295

[ScopeyNZ]

This is done using the standard UploadField component provided by silverstripe-admin. If there's more to do here let's raise supplementary issues 🙂