Merge branch 'projects-l' into 'master'

Refactor projects:l*

See merge request gitlab-org/gitlab-ce!16393

app/assets/javascripts/dispatcher.js

@@ -442,12 +442,24 @@ import Activities from './activities';
           break;
         case 'groups:labels:new':
         case 'groups:labels:edit':
+          new Labels();
+          break;
         case 'projects:labels:new':
+          import('./pages/projects/labels/new')
+            .then(callDefault)
+            .catch(fail);
+          break;
         case 'projects:labels:edit':
-          new Labels();
+          import('./pages/projects/labels/edit')
+            .then(callDefault)
+            .catch(fail);
           break;
-        case 'groups:labels:index':
         case 'projects:labels:index':
+          import('./pages/projects/labels/index')
+            .then(callDefault)
+            .catch(fail);
+          break;
+        case 'groups:labels:index':
           if ($('.prioritized-labels').length) {
             new LabelManager();
           }

app/assets/javascripts/init_labels.js

+import LabelManager from './label_manager';
+import GroupLabelSubscription from './group_label_subscription';
+import ProjectLabelSubscription from './project_label_subscription';
+
+export default () => {
+  if ($('.prioritized-labels').length) {
+    new LabelManager(); // eslint-disable-line no-new
+  }
+  $('.label-subscription').each((i, el) => {
+    const $el = $(el);
+
+    if ($el.find('.dropdown-group-label').length) {
+      new GroupLabelSubscription($el); // eslint-disable-line no-new
+    } else {
+      new ProjectLabelSubscription($el); // eslint-disable-line no-new
+    }
+  });
+};

app/assets/javascripts/pages/projects/labels/edit/index.js

+import Labels from '~/labels';
+
+export default () => new Labels();

app/assets/javascripts/pages/projects/labels/index/index.js

+import initLabels from '~/init_labels';
+
+export default initLabels;

app/assets/javascripts/pages/projects/labels/new/index.js

+import Labels from '~/labels';
+
+export default () => new Labels();