Migrate isSupportedContent to Apollo

Use VueApollo to handle the isSupportedContent
business logic

app/assets/javascripts/static_site_editor/graphql/queries/app_data.query.graphql

+query appData {
+  isSupportedContent @client
+}

app/assets/javascripts/static_site_editor/graphql/typedefs.graphql

 extend type Query {
   isSupportedContent: Boolean!
-  projectId: String!
+  project: String!
   returnUrl: String
   sourcePath: String!
   username: String!

app/assets/javascripts/static_site_editor/index.js

@@ -6,7 +6,14 @@ import createRouter from './router';
 import createApolloProvider from './graphql';
 
 const initStaticSiteEditor = el => {
-  const { isSupportedContent, projectId, path: sourcePath, baseUrl } = el.dataset;
+  const {
+    isSupportedContent,
+    projectId,
+    path: sourcePath,
+    baseUrl,
+    namespace,
+    project,
+  } = el.dataset;
   const { current_username: username } = window.gon;
   const returnUrl = el.dataset.returnUrl || null;
 
@@ -22,7 +29,7 @@ const initStaticSiteEditor = el => {
   const router = createRouter(baseUrl);
   const apolloProvider = createApolloProvider({
     isSupportedContent: parseBoolean(isSupportedContent),
-    projectId,
+    project: `${namespace}/${project}`,
     returnUrl,
     sourcePath,
     username,

app/assets/javascripts/static_site_editor/pages/home.vue

@@ -11,6 +11,8 @@ import PublishToolbar from '../components/publish_toolbar.vue';
 import InvalidContentMessage from '../components/invalid_content_message.vue';
 import SubmitChangesError from '../components/submit_changes_error.vue';
 
+import appDataQuery from '../graphql/queries/app_data.query.graphql';
+
 export default {
   components: {
     RichContentEditor,
@@ -23,13 +25,17 @@ export default {
     SubmitChangesError,
   },
   mixins: [glFeatureFlagsMixin()],
+  apollo: {
+    isSupportedContent: {
+      query: appDataQuery,
+    },
+  },
   computed: {
     ...mapState([
       'content',
       'isLoadingContent',
       'isSavingChanges',
       'isContentLoaded',
-      'isSupportedContent',
       'returnUrl',
       'title',
       'submitChangesError',

app/assets/javascripts/static_site_editor/store/state.js

@@ -6,7 +6,6 @@ const createState = (initialState = {}) => ({
 
   isLoadingContent: false,
   isSavingChanges: false,
-  isSupportedContent: false,
 
   isContentLoaded: false,
 

spec/frontend/static_site_editor/pages/home_spec.js

@@ -40,7 +40,6 @@ describe('static_site_editor/pages/home', () => {
 
     store = new Vuex.Store({
       state: createState({
-        isSupportedContent: true,
         ...initialState,
       }),
       getters: {
@@ -67,13 +66,16 @@ describe('static_site_editor/pages/home', () => {
     });
   };
 
-  const buildWrapper = () => {
+  const buildWrapper = (data = { isSupportedContent: true }) => {
     wrapper = shallowMount(Home, {
       localVue,
       store,
       provide: {
         glFeatures: { richContentEditor: true },
       },
+      data() {
+        return data;
+      },
     });
   };
 
@@ -194,8 +196,7 @@ describe('static_site_editor/pages/home', () => {
   });
 
   it('displays invalid content message when content is not supported', () => {
-    buildStore({ initialState: { isSupportedContent: false } });
-    buildWrapper();
+    buildWrapper({ isSupportedContent: false });
 
     expect(findInvalidContentMessage().exists()).toBe(true);
   });