Merge branch '22089-show-full-job-name-on-hover-on-pipeline-graph' into 'master'

Add tooltip with jobs full name to pipelines graph

## What does this MR do?

This MR adds a tooltip to build items in the pipelines graph as some build names are truncated.

## Are there points in the code the reviewer needs to double check?

## Why was this MR needed?

Some job names that are truncated need to be fully identified to avoid confusion.

## Screenshots (if relevant)

[Latest screenies here!](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6403#note_16968703).

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?


Closes #22089

See merge request !6403

app/assets/stylesheets/pages/pipelines.scss

@@ -365,10 +365,6 @@
 
     &:hover {
       background-color: $gray-lighter;
-
-      .dropdown-menu-toggle {
-        background-color: transparent;
-      }
     }
 
     &.playable {
@@ -398,6 +394,15 @@
         }
       }
 
+      .tooltip {
+        white-space: nowrap;
+
+        .tooltip-inner {
+          overflow: hidden;
+          text-overflow: ellipsis;
+        }
+      }
+
       .ci-status-text {
         width: 135px;
         white-space: nowrap;
@@ -415,6 +420,7 @@
       }
 
       .dropdown-menu-toggle {
+        background-color: transparent;
         border: none;
         width: auto;
         padding: 0;

app/views/projects/ci/builds/_build_pipeline.html.haml

 - is_playable = subject.playable? && can?(current_user, :update_build, @project)
 - if is_playable
-  = link_to play_namespace_project_build_path(subject.project.namespace, subject.project, subject, return_to: request.original_url), method: :post, title: 'Play' do
+  = link_to play_namespace_project_build_path(subject.project.namespace, subject.project, subject, return_to: request.original_url), method: :post, data: { toggle: 'tooltip', title: "#{subject.name} - play", container: '.pipeline-graph', placement: 'bottom' } do
     = render_status_with_link('build', 'play')
     .ci-status-text= subject.name
 - elsif can?(current_user, :read_build, @project)
-  = link_to namespace_project_build_path(subject.project.namespace, subject.project, subject) do
+  = link_to namespace_project_build_path(subject.project.namespace, subject.project, subject), data: { toggle: 'tooltip', title: "#{subject.name} - #{subject.status}", container: '.pipeline-graph', placement: 'bottom' } do
     %span.ci-status-icon
       = render_status_with_link('build', subject.status)
     .ci-status-text= subject.name

app/views/projects/commit/_pipeline_status_group.html.haml

 - group_status = CommitStatus.where(id: subject).status
-%button.dropdown-menu-toggle{ type: 'button', data: { toggle: 'dropdown' } }
+%button.dropdown-menu-toggle.has-tooltip{ type: 'button', data: { toggle: 'dropdown', title: "#{name} - #{group_status}" } }
   %span.ci-status-icon
     = render_status_with_link('build', group_status)
   %span.ci-status-text

app/views/projects/generic_commit_statuses/_generic_commit_status_pipeline.html.haml

-- if subject.target_url
-  = link_to subject.target_url do
+%a{ data: { toggle: 'tooltip', title: "#{subject.name} - #{subject.status}", container: '.pipeline-graph', placement: 'bottom' } }
+  - if subject.target_url
+    = link_to subject.target_url do
+      %span.ci-status-icon
+        = render_status_with_link('commit status', subject.status)
+      %span.ci-status-text= subject.name
+  - else
     %span.ci-status-icon
       = render_status_with_link('commit status', subject.status)
     %span.ci-status-text= subject.name
-- else
-  %span.ci-status-icon
-    = render_status_with_link('commit status', subject.status)
-  %span.ci-status-text= subject.name