Refactor dispatcher projects blame and blob path

app/assets/javascripts/dispatcher.js

@@ -35,8 +35,6 @@ import Group from './group';
 import ProjectsList from './projects_list';
 import setupProjectEdit from './project_edit';
 import MiniPipelineGraph from './mini_pipeline_graph_dropdown';
-import BlobLinePermalinkUpdater from './blob/blob_line_permalink_updater';
-import BlobForkSuggestion from './blob/blob_fork_suggestion';
 import UserCallout from './user_callout';
 import ShortcutsWiki from './shortcuts_wiki';
 import BlobViewer from './blob/viewer/index';
@@ -44,7 +42,6 @@ import AutoWidthDropdownSelect from './issuable/auto_width_dropdown_select';
 import UsersSelect from './users_select';
 import RefSelectDropdown from './ref_select_dropdown';
 import GfmAutoComplete from './gfm_auto_complete';
-import ShortcutsBlob from './shortcuts_blob';
 import Star from './star';
 import TreeView from './tree';
 import Wikis from './wikis';
@@ -85,7 +82,7 @@ import Activities from './activities';
     }
 
     Dispatcher.prototype.initPageScripts = function() {
-      var path, shortcut_handler, fileBlobPermalinkUrlElement, fileBlobPermalinkUrl;
+      var path, shortcut_handler;
       const page = $('body').attr('data-page');
       if (!page) {
         return false;
@@ -110,33 +107,6 @@ import Activities from './activities';
         });
       });
 
-      function initBlob() {
-        new LineHighlighter();
-
-        new BlobLinePermalinkUpdater(
-          document.querySelector('#blob-content-holder'),
-          '.diff-line-num[data-line-number]',
-          document.querySelectorAll('.js-data-file-blob-permalink-url, .js-blob-blame-link'),
-        );
-
-        shortcut_handler = new ShortcutsNavigation();
-        fileBlobPermalinkUrlElement = document.querySelector('.js-data-file-blob-permalink-url');
-        fileBlobPermalinkUrl = fileBlobPermalinkUrlElement && fileBlobPermalinkUrlElement.getAttribute('href');
-        new ShortcutsBlob({
-          skipResetBindings: true,
-          fileBlobPermalinkUrl,
-        });
-
-        new BlobForkSuggestion({
-          openButtons: document.querySelectorAll('.js-edit-blob-link-fork-toggler'),
-          forkButtons: document.querySelectorAll('.js-fork-suggestion-button'),
-          cancelButtons: document.querySelectorAll('.js-cancel-fork-suggestion-button'),
-          suggestionSections: document.querySelectorAll('.js-file-fork-suggestion-section'),
-          actionTextPieces: document.querySelectorAll('.js-file-fork-suggestion-section-action'),
-        })
-          .init();
-      }
-
       const filteredSearchEnabled = gl.FilteredSearchManager && document.querySelector('.filtered-search');
 
       switch (page) {
@@ -460,11 +430,16 @@ import Activities from './activities';
           shortcut_handler = true;
           break;
         case 'projects:blob:show':
-          new BlobViewer();
-          initBlob();
+          import('./pages/projects/blob/show')
+            .then(callDefault)
+            .catch(fail);
+          shortcut_handler = true;
           break;
         case 'projects:blame:show':
-          initBlob();
+          import('./pages/projects/blame/show')
+            .then(callDefault)
+            .catch(fail);
+          shortcut_handler = true;
           break;
         case 'groups:labels:new':
         case 'groups:labels:edit':

app/assets/javascripts/pages/projects/blame/show/index.js

+import initBlob from '~/pages/projects/init_blob';
+
+export default initBlob;

app/assets/javascripts/pages/projects/blob/show/index.js

+import BlobViewer from '~/blob/viewer/index';
+import initBlob from '~/pages/projects/init_blob';
+
+export default () => {
+  new BlobViewer(); // eslint-disable-line no-new
+  initBlob();
+};

app/assets/javascripts/pages/projects/init_blob.js

+import LineHighlighter from '~/line_highlighter';
+import BlobLinePermalinkUpdater from '~/blob/blob_line_permalink_updater';
+import ShortcutsNavigation from '~/shortcuts_navigation';
+import ShortcutsBlob from '~/shortcuts_blob';
+import BlobForkSuggestion from '~/blob/blob_fork_suggestion';
+
+export default () => {
+  new LineHighlighter(); // eslint-disable-line no-new
+
+  new BlobLinePermalinkUpdater( // eslint-disable-line no-new
+    document.querySelector('#blob-content-holder'),
+    '.diff-line-num[data-line-number]',
+    document.querySelectorAll('.js-data-file-blob-permalink-url, .js-blob-blame-link'),
+  );
+
+  const fileBlobPermalinkUrlElement = document.querySelector('.js-data-file-blob-permalink-url');
+  const fileBlobPermalinkUrl = fileBlobPermalinkUrlElement && fileBlobPermalinkUrlElement.getAttribute('href');
+
+  new ShortcutsNavigation(); // eslint-disable-line no-new
+
+  new ShortcutsBlob({ // eslint-disable-line no-new
+    skipResetBindings: true,
+    fileBlobPermalinkUrl,
+  });
+
+  new BlobForkSuggestion({ // eslint-disable-line no-new
+    openButtons: document.querySelectorAll('.js-edit-blob-link-fork-toggler'),
+    forkButtons: document.querySelectorAll('.js-fork-suggestion-button'),
+    cancelButtons: document.querySelectorAll('.js-cancel-fork-suggestion-button'),
+    suggestionSections: document.querySelectorAll('.js-file-fork-suggestion-section'),
+    actionTextPieces: document.querySelectorAll('.js-file-fork-suggestion-section-action'),
+  }).init();
+};