Use BlobHeader vue component for repo files

Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/323210

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

@@ -19,7 +19,7 @@ const apolloProvider = new VueApollo({
 const viewBlobEl = document.querySelector('#js-view-blob-app');
 
 if (viewBlobEl) {
-  const { blobPath, projectPath } = viewBlobEl.dataset;
+  const { blobPath, projectPath, hasRichViewer } = viewBlobEl.dataset;
 
   // eslint-disable-next-line no-new
   new Vue({
@@ -28,6 +28,7 @@ if (viewBlobEl) {
     render(createElement) {
       return createElement(BlobContentViewer, {
         props: {
+          hasRichViewer: JSON.parse(hasRichViewer),
           path: blobPath,
           projectPath,
         },

app/assets/javascripts/repository/components/blob_content_viewer.vue

@@ -3,6 +3,7 @@ import { GlLoadingIcon } from '@gitlab/ui';
 import { uniqueId } from 'lodash';
 import BlobContent from '~/blob/components/blob_content.vue';
 import BlobHeader from '~/blob/components/blob_header.vue';
+import { SIMPLE_BLOB_VIEWER, RICH_BLOB_VIEWER } from '~/blob/components/constants';
 import createFlash from '~/flash';
 import { __ } from '~/locale';
 import blobInfoQuery from '../queries/blob_info.query.graphql';
@@ -41,9 +42,15 @@ export default {
       type: String,
       required: true,
     },
+    hasRichViewer: {
+      type: Boolean,
+      required: true,
+    },
   },
   data() {
     return {
+      activeViewerType:
+        this.hasRichViewer && !window.location.hash ? RICH_BLOB_VIEWER : SIMPLE_BLOB_VIEWER,
       project: {
         repository: {
           blobs: {
@@ -87,10 +94,16 @@ export default {
       return nodes[0] || {};
     },
     viewer() {
-      const viewer = this.blobInfo.richViewer || this.blobInfo.simpleViewer;
-      const { fileType, tooLarge, type } = viewer;
-
-      return { fileType, tooLarge, type };
+      const { richViewer, simpleViewer } = this.blobInfo;
+      return this.activeViewerType === RICH_BLOB_VIEWER ? richViewer : simpleViewer;
+    },
+    hasRenderError() {
+      return Boolean(this.viewer.renderError);
+    },
+  },
+  methods: {
+    switchViewer(newViewer) {
+      this.activeViewerType = newViewer || SIMPLE_BLOB_VIEWER;
     },
   },
 };
@@ -99,8 +112,14 @@ export default {
 <template>
   <div>
     <gl-loading-icon v-if="isLoading" />
-    <div v-if="blobInfo && !isLoading">
-      <blob-header :blob="blobInfo" />
+    <div v-if="blobInfo && !isLoading" class="file-holder">
+      <blob-header
+        :blob="blobInfo"
+        :hide-viewer-switcher="!hasRichViewer"
+        :active-viewer-type="viewer.type"
+        :has-render-error="hasRenderError"
+        @viewer-changed="switchViewer"
+      />
       <blob-content
         :blob="blobInfo"
         :content="blobInfo.rawTextBlob"

app/assets/javascripts/repository/queries/blob_info.query.graphql

@@ -6,6 +6,7 @@ query getBlobInfo($projectPath: ID!, $filePath: String!) {
         nodes {
           webPath
           name
+          size
           rawSize
           rawTextBlob
           fileType
@@ -18,11 +19,13 @@ query getBlobInfo($projectPath: ID!, $filePath: String!) {
             fileType
             tooLarge
             type
+            renderError
           }
           richViewer {
             fileType
             tooLarge
             type
+            renderError
           }
         }
       }

app/controllers/projects/blob_controller.rb

@@ -37,6 +37,10 @@ class Projects::BlobController < Projects::ApplicationController
 
   feature_category :source_code_management
 
+  before_action do
+    push_frontend_feature_flag(:refactor_blob_viewer, @project, default_enabled: :yaml)
+  end
+
   def new
     commit unless @repository.empty?
   end

app/views/projects/blob/_blob.html.haml

@@ -12,7 +12,7 @@
   - if @code_navigation_path
     #js-code-navigation{ data: { code_navigation_path: @code_navigation_path, blob_path: blob.path, definition_path_prefix: project_blob_path(@project, @ref) } }
   - if Feature.enabled?(:refactor_blob_viewer, @project, default_enabled: :yaml)
-    #js-view-blob-app{ data: { blob_path: blob.path, project_path: @project.full_path } }
+    #js-view-blob-app{ data: { has_rich_viewer: blob.rich_viewer.present?.to_json, blob_path: blob.path, project_path: @project.full_path } }
       .gl-spinner-container
         = loading_icon(size: 'md')
   - else

spec/frontend/repository/components/blob_content_viewer_spec.js

@@ -5,9 +5,10 @@ import BlobHeader from '~/blob/components/blob_header.vue';
 import BlobContentViewer from '~/repository/components/blob_content_viewer.vue';
 
 let wrapper;
-const mockData = {
+const simpleMockData = {
   name: 'some_file.js',
   size: 123,
+  rawSize: 123,
   rawTextBlob: 'raw content',
   type: 'text',
   fileType: 'text',
@@ -29,15 +30,27 @@ const mockData = {
     fileType: 'text',
     tooLarge: false,
     type: 'simple',
+    renderError: null,
   },
   richViewer: null,
 };
+const richMockData = {
+  ...simpleMockData,
+  richViewer: {
+    fileType: 'markup',
+    tooLarge: false,
+    type: 'rich',
+    renderError: null,
+  },
+};
 
-function factory(path, loading = false) {
+function factory({ props = {}, mockData = {} } = {}, loading = false) {
   wrapper = shallowMount(BlobContentViewer, {
     propsData: {
-      path,
+      path: 'some_file.js',
       projectPath: 'some/path',
+      hasRichViewer: false,
+      ...props,
     },
     mocks: {
       $apollo: {
@@ -58,27 +71,29 @@ describe('Blob content viewer component', () => {
   const findBlobHeader = () => wrapper.find(BlobHeader);
   const findBlobContent = () => wrapper.find(BlobContent);
 
-  afterEach(() => {
-    wrapper.destroy();
+  beforeEach(() => {
+    factory({ mockData: simpleMockData });
   });
 
-  beforeEach(() => {
-    factory('some_file.js');
+  afterEach(() => {
+    wrapper.destroy();
   });
 
   it('renders a GlLoadingIcon component', () => {
-    factory('some_file.js', true);
+    factory({ mockData: simpleMockData }, true);
 
     expect(findLoadingIcon().exists()).toBe(true);
   });
 
+  describe('simple viewer', () => {
     it('renders a BlobHeader component', () => {
-    expect(findBlobHeader().exists()).toBe(true);
+      expect(findBlobHeader().props('activeViewerType')).toEqual('simple');
+      expect(findBlobHeader().props('hasRenderError')).toEqual(false);
+      expect(findBlobHeader().props('hideViewerSwitcher')).toEqual(true);
+      expect(findBlobHeader().props('blob')).toEqual(simpleMockData);
     });
 
     it('renders a BlobContent component', () => {
-    expect(findBlobContent().exists()).toBe(true);
-
       expect(findBlobContent().props('loading')).toEqual(false);
       expect(findBlobContent().props('content')).toEqual('raw content');
       expect(findBlobContent().props('isRawContent')).toBe(true);
@@ -86,6 +101,52 @@ describe('Blob content viewer component', () => {
         fileType: 'text',
         tooLarge: false,
         type: 'simple',
+        renderError: null,
+      });
+    });
+  });
+
+  describe('rich viewer', () => {
+    beforeEach(() => {
+      factory({ props: { hasRichViewer: true }, mockData: richMockData });
+    });
+
+    it('renders a BlobHeader component', () => {
+      expect(findBlobHeader().props('activeViewerType')).toEqual('rich');
+      expect(findBlobHeader().props('hasRenderError')).toEqual(false);
+      expect(findBlobHeader().props('hideViewerSwitcher')).toEqual(false);
+      expect(findBlobHeader().props('blob')).toEqual(richMockData);
+    });
+
+    it('renders a BlobContent component', () => {
+      expect(findBlobContent().props('loading')).toEqual(false);
+      expect(findBlobContent().props('content')).toEqual('raw content');
+      expect(findBlobContent().props('isRawContent')).toBe(true);
+      expect(findBlobContent().props('activeViewer')).toEqual({
+        fileType: 'markup',
+        tooLarge: false,
+        type: 'rich',
+        renderError: null,
+      });
+    });
+
+    it('updates viewer type when viewer changed is clicked', async () => {
+      expect(findBlobContent().props('activeViewer')).toEqual(
+        expect.objectContaining({
+          type: 'rich',
+        }),
+      );
+      expect(findBlobHeader().props('activeViewerType')).toEqual('rich');
+
+      findBlobHeader().vm.$emit('viewer-changed', 'simple');
+      await wrapper.vm.$nextTick();
+
+      expect(findBlobHeader().props('activeViewerType')).toEqual('simple');
+      expect(findBlobContent().props('activeViewer')).toEqual(
+        expect.objectContaining({
+          type: 'simple',
+        }),
+      );
     });
   });
 });