Pipeline Graph: Update Conditions for Showing Switcher

app/assets/javascripts/pipelines/components/graph/constants.js

@@ -13,5 +13,6 @@ export const GRAPHQL = 'graphql';
 
 export const STAGE_VIEW = 'stage';
 export const LAYER_VIEW = 'layer';
+export const VIEW_TYPE_KEY = 'pipeline_graph_view_type';
 
 export const IID_FAILURE = 'missing_iid';

app/assets/javascripts/pipelines/components/graph/graph_component_wrapper.vue

@@ -2,11 +2,12 @@
 import { GlAlert, GlLoadingIcon } from '@gitlab/ui';
 import getPipelineDetails from 'shared_queries/pipelines/get_pipeline_details.query.graphql';
 import { __ } from '~/locale';
+import LocalStorageSync from '~/vue_shared/components/local_storage_sync.vue';
 import glFeatureFlagMixin from '~/vue_shared/mixins/gl_feature_flags_mixin';
 import { DEFAULT, DRAW_FAILURE, LOAD_FAILURE } from '../../constants';
 import { reportToSentry } from '../../utils';
 import { listByLayers } from '../parsing_utils';
-import { IID_FAILURE, LAYER_VIEW, STAGE_VIEW } from './constants';
+import { IID_FAILURE, LAYER_VIEW, STAGE_VIEW, VIEW_TYPE_KEY } from './constants';
 import PipelineGraph from './graph_component.vue';
 import GraphViewSelector from './graph_view_selector.vue';
 import {
@@ -22,6 +23,7 @@ export default {
     GlAlert,
     GlLoadingIcon,
     GraphViewSelector,
+    LocalStorageSync,
     PipelineGraph,
   },
   mixins: [glFeatureFlagMixin()],
@@ -143,7 +145,7 @@ export default {
       return this.$apollo.queries.pipeline.loading && !this.pipeline;
     },
     showGraphViewSelector() {
-      return Boolean(this.glFeatures.pipelineGraphLayersView && this.pipeline);
+      return Boolean(this.glFeatures.pipelineGraphLayersView && this.pipeline?.usesNeeds);
     },
   },
   mounted() {
@@ -184,6 +186,7 @@ export default {
       this.currentViewType = type;
     },
   },
+  viewTypeKey: VIEW_TYPE_KEY,
 };
 </script>
 <template>
@@ -191,11 +194,17 @@ export default {
     <gl-alert v-if="showAlert" :variant="alert.variant" @dismiss="hideAlert">
       {{ alert.text }}
     </gl-alert>
+    <local-storage-sync
+      :storage-key="$options.viewTypeKey"
+      :value="currentViewType"
+      @input="updateViewType"
+    >
       <graph-view-selector
         v-if="showGraphViewSelector"
         :type="currentViewType"
         @updateViewType="updateViewType"
       />
+    </local-storage-sync>
     <gl-loading-icon v-if="showLoadingIcon" class="gl-mx-auto gl-my-4" size="lg" />
     <pipeline-graph
       v-if="pipeline"

app/assets/javascripts/pipelines/components/graph/graph_view_selector.vue

@@ -57,7 +57,7 @@ export default {
 <template>
   <div class="gl-display-flex gl-align-items-center gl-my-4">
     <span>{{ $options.i18n.labelText }}</span>
-    <gl-dropdown class="gl-ml-4">
+    <gl-dropdown data-testid="pipeline-view-selector" class="gl-ml-4">
       <template #button-content>
         <gl-sprintf :message="currentDropdownText">
           <template #code="{ content }">

app/graphql/queries/pipelines/get_pipeline_details.query.graphql

@@ -27,6 +27,7 @@ query getPipelineDetails($projectPath: ID!, $iid: ID!) {
       __typename
       id
       iid
+      usesNeeds
       downstream {
         __typename
         nodes {

spec/frontend/pipelines/graph/graph_component_wrapper_spec.js

@@ -2,9 +2,15 @@ import { GlAlert, GlLoadingIcon } from '@gitlab/ui';
 import { mount, shallowMount } from '@vue/test-utils';
 import Vue from 'vue';
 import VueApollo from 'vue-apollo';
+import { useLocalStorageSpy } from 'helpers/local_storage_helper';
 import createMockApollo from 'helpers/mock_apollo_helper';
 import getPipelineDetails from 'shared_queries/pipelines/get_pipeline_details.query.graphql';
-import { IID_FAILURE, LAYER_VIEW, STAGE_VIEW } from '~/pipelines/components/graph/constants';
+import {
+  IID_FAILURE,
+  LAYER_VIEW,
+  STAGE_VIEW,
+  VIEW_TYPE_KEY,
+} from '~/pipelines/components/graph/constants';
 import PipelineGraph from '~/pipelines/components/graph/graph_component.vue';
 import PipelineGraphWrapper from '~/pipelines/components/graph/graph_component_wrapper.vue';
 import GraphViewSelector from '~/pipelines/components/graph/graph_view_selector.vue';
@@ -21,6 +27,7 @@ const defaultProvide = {
 
 describe('Pipeline graph wrapper', () => {
   Vue.use(VueApollo);
+  useLocalStorageSpy();
 
   let wrapper;
   const getAlert = () => wrapper.find(GlAlert);
@@ -216,7 +223,7 @@ describe('Pipeline graph wrapper', () => {
   });
 
   describe('view dropdown', () => {
-    describe('when feature flag is off', () => {
+    describe('when pipelineGraphLayersView feature flag is off', () => {
       beforeEach(async () => {
         createComponentWithApollo();
         jest.runOnlyPendingTimers();
@@ -228,7 +235,7 @@ describe('Pipeline graph wrapper', () => {
       });
     });
 
-    describe('when feature flag is on', () => {
+    describe('when pipelineGraphLayersView feature flag is on', () => {
       let layersFn;
       beforeEach(async () => {
         layersFn = jest.spyOn(parsingUtils, 'listByLayers');
@@ -245,7 +252,7 @@ describe('Pipeline graph wrapper', () => {
         await wrapper.vm.$nextTick();
       });
 
-      it('appears', () => {
+      it('appears when pipeline uses needs', () => {
         expect(getViewSelector().exists()).toBe(true);
       });
 
@@ -259,6 +266,11 @@ describe('Pipeline graph wrapper', () => {
         expect(getStageColumnTitle().text()).toBe('');
       });
 
+      it('saves the view type to local storage', async () => {
+        await getViewSelector().vm.$emit('updateViewType', LAYER_VIEW);
+        expect(localStorage.setItem.mock.calls).toEqual([[VIEW_TYPE_KEY, LAYER_VIEW]]);
+      });
+
       it('calls listByLayers only once no matter how many times view is switched', async () => {
         expect(layersFn).not.toHaveBeenCalled();
         await getViewSelector().vm.$emit('updateViewType', LAYER_VIEW);
@@ -269,5 +281,53 @@ describe('Pipeline graph wrapper', () => {
         expect(layersFn).toHaveBeenCalledTimes(1);
       });
     });
+
+    describe('when feature flag is on and local storage is set', () => {
+      beforeEach(async () => {
+        localStorage.setItem(VIEW_TYPE_KEY, LAYER_VIEW);
+
+        createComponentWithApollo({
+          provide: {
+            glFeatures: {
+              pipelineGraphLayersView: true,
+            },
+          },
+          mountFn: mount,
+        });
+
+        jest.runOnlyPendingTimers();
+        await wrapper.vm.$nextTick();
+      });
+
+      it('reads the view type from localStorage when available', () => {
+        expect(wrapper.find('[data-testid="pipeline-view-selector"] code').text()).toContain(
+          'needs:',
+        );
+      });
+    });
+
+    describe('when feature flag is on but pipeline does not use needs', () => {
+      beforeEach(async () => {
+        const nonNeedsResponse = { ...mockPipelineResponse };
+        nonNeedsResponse.data.project.pipeline.usesNeeds = false;
+
+        createComponentWithApollo({
+          provide: {
+            glFeatures: {
+              pipelineGraphLayersView: true,
+            },
+          },
+          mountFn: mount,
+          getPipelineDetailsHandler: jest.fn().mockResolvedValue(nonNeedsResponse),
+        });
+
+        jest.runOnlyPendingTimers();
+        await wrapper.vm.$nextTick();
+      });
+
+      it('does not appear when pipeline does not use needs', () => {
+        expect(getViewSelector().exists()).toBe(false);
+      });
+    });
   });
 });

spec/frontend/pipelines/graph/mock_data.js

@@ -8,6 +8,7 @@ export const mockPipelineResponse = {
         __typename: 'Pipeline',
         id: 163,
         iid: '22',
+        usesNeeds: true,
         downstream: null,
         upstream: null,
         stages: {
@@ -569,6 +570,7 @@ export const wrappedPipelineReturn = {
         __typename: 'Pipeline',
         id: 'gid://gitlab/Ci::Pipeline/175',
         iid: '38',
+        usesNeeds: true,
         downstream: {
           __typename: 'PipelineConnection',
           nodes: [],