- expand upwards
- expand downwards
- expand all

in both inline and parallel views

The user can also toggle between the diff changes and
the full file diff.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/19054

- replaced file.too_large
- replaced file.text
- replaced file.collapsed

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/56797

Before, diff file `higlighted_diff_lines`/`parallel_diff_lines` and
diff discussion `truncated_diff_lines` were inconsistent: `text` and
`rich_text` on the latter included the leading +/-/<space> character,
like on the backend, while the former had no `text` and its `rich_text`
had dropped this char.

This resulted in a bug when the suggestions feature expected these diff
line objects to be identical in format and thus interchangeable, which
was not the case.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54807

The diff notes automatically focus on mount, and when using the index
(as opposed to line_code) for the v-bind:key, the comment form gets
unnecessarily remounted, and therefore refocused.

Renders mode changed and renamed file merge request diff
viewers on the frontend.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/52607

This caused many pain points when working with it.
Part of the data was camel cased the other snake case.
Other parts where snake case & then getting converted in components,
this conversion has the potential for leaking memory.

This changes that & makes it consistent with what it returned from the
API, snake case.

Added tests to file row truncated text computed prop

This adds toggle buttons to switch between file & tree list.
For file list, it renders the truncated paths with the ellipsis
at the start of the path.

When focusing the input, it hides the toggle buttons.
On blur, the buttons get shown again.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/51859

This file tree displays all the diff files in a tree like format
Each file is taken and converted into a tree with folders
Each folder can be toggled open & closed
Clicking a file will scroll to the diff file & highlight with a glow affect

Searching the tree list will search only files & return a list of the
files without any folders

Each file row contains an icon to show changed, new file or deleted
Each row will also contain the added & removed lines count

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/14249

Display `formatter` as the sole content of `position` object.
This means `diff_file` data is not referenced, which is the
caseu of "IOError: not opened for reading".

Fixed toggling new notes caused by not returning the stores discussion

It now tests for the latest diff check

Updated diff mutations and utils spec to check for legacy notes

This reverts commit 740ae2d1, reversing
changes made to 1ba47de5.