Merge branch 'issue-edit-inline-locked-warning' into 'issue-edit-inline'

Show warning if realtime data has changed since the form has opened

See merge request !11495

6 files changed, 118 insertions, 3 deletions

diff --git a/app/assets/javascripts/issue_show/components/app.vue b/app/assets/javascripts/issue_show/components/app.vue
index c4154745bf8..c08d3dee755 100644
--- a/app/assets/javascripts/issue_show/components/app.vue
+++ b/app/assets/javascripts/issue_show/components/app.vue
@@ -90,12 +90,12 @@ export default {
     openForm() {
       if (!this.showForm) {
         this.showForm = true;
-        this.store.formState = {
+        this.store.formState = Object.assign(this.store.formState, {
           title: this.state.titleText,
           confidential: this.isConfidential,
           description: this.state.descriptionText,
           move_to_project_id: 0,
-        };
+        });
       }
     },
     closeForm() {
@@ -139,7 +139,14 @@ export default {
       resource: this.service,
       method: 'getData',
       successCallback: (res) => {
-        this.store.updateState(res.json());
+        const data = res.json();
+        const shouldUpdate = this.store.stateShouldUpdate(data);
+
+        this.store.updateState(data);
+
+        if (this.showForm && (shouldUpdate.title || shouldUpdate.description)) {
+          this.store.formState.lockedWarningVisible = true;
+        }
       },
       errorCallback(err) {
         throw new Error(err);
diff --git a/app/assets/javascripts/issue_show/components/form.vue b/app/assets/javascripts/issue_show/components/form.vue
index 1b50b1dcd03..c7fb63365ea 100644
--- a/app/assets/javascripts/issue_show/components/form.vue
+++ b/app/assets/javascripts/issue_show/components/form.vue
@@ -1,4 +1,5 @@
 <script>
+  import lockedWarning from './locked_warning.vue';
   import titleField from './fields/title.vue';
   import descriptionField from './fields/description.vue';
   import editActions from './edit_actions.vue';
@@ -33,6 +34,7 @@
       },
     },
     components: {
+      lockedWarning,
       titleField,
       descriptionField,
       editActions,
@@ -44,6 +46,7 @@
 
 <template>
   <form>
+    <locked-warning v-if="formState.lockedWarningVisible" />
     <title-field
       :form-state="formState" />
     <confidential-checkbox
diff --git a/app/assets/javascripts/issue_show/components/locked_warning.vue b/app/assets/javascripts/issue_show/components/locked_warning.vue
new file mode 100644
index 00000000000..1c2789f154a
--- /dev/null
+++ b/app/assets/javascripts/issue_show/components/locked_warning.vue
@@ -0,0 +1,20 @@
+<script>
+  export default {
+    computed: {
+      currentPath() {
+        return location.pathname;
+      },
+    },
+  };
+</script>
+
+<template>
+  <div class="alert alert-danger">
+    Someone edited the issue at the same time you did. Please check out
+    <a
+      :href="currentPath"
+      target="_blank"
+      rel="nofollow">the issue</a>
+    and make sure your changes will not unintentionally remove theirs.
+  </div>
+</template>
diff --git a/app/assets/javascripts/issue_show/stores/index.js b/app/assets/javascripts/issue_show/stores/index.js
index 1135bc0bfb5..ea6f4e6a4fa 100644
--- a/app/assets/javascripts/issue_show/stores/index.js
+++ b/app/assets/javascripts/issue_show/stores/index.js
@@ -16,6 +16,7 @@ export default class Store {
       title: '',
       confidential: false,
       description: '',
+      lockedWarningVisible: false,
       move_to_project_id: 0,
     };
   }
@@ -28,4 +29,11 @@ export default class Store {
     this.state.taskStatus = data.task_status;
     this.state.updatedAt = data.updated_at;
   }
+
+  stateShouldUpdate(data) {
+    return {
+      title: this.state.titleText !== data.title_text,
+      description: this.state.descriptionText !== data.description_text,
+    };
+  }
 }
diff --git a/spec/javascripts/issue_show/components/app_spec.js b/spec/javascripts/issue_show/components/app_spec.js
index 91ae3cfd97c..3247f83d551 100644
--- a/spec/javascripts/issue_show/components/app_spec.js
+++ b/spec/javascripts/issue_show/components/app_spec.js
@@ -285,4 +285,36 @@ describe('Issuable output', () => {
       });
     });
   });
+
+  describe('open form', () => {
+    it('shows locked warning if form is open & data is different', (done) => {
+      Vue.http.interceptors.push(issueShowInterceptor(issueShowData.initialRequest));
+
+      Vue.nextTick()
+        .then(() => new Promise((resolve) => {
+          setTimeout(resolve);
+        }))
+        .then(() => {
+          vm.openForm();
+
+          Vue.http.interceptors.push(issueShowInterceptor(issueShowData.secondRequest));
+
+          return new Promise((resolve) => {
+            setTimeout(resolve);
+          });
+        })
+        .then(() => {
+          expect(
+            vm.formState.lockedWarningVisible,
+          ).toBeTruthy();
+
+          expect(
+            vm.$el.querySelector('.alert'),
+          ).not.toBeNull();
+
+          done();
+        })
+        .catch(done.fail);
+    });
+  });
 });
diff --git a/spec/javascripts/issue_show/components/form_spec.js b/spec/javascripts/issue_show/components/form_spec.js
new file mode 100644
index 00000000000..d91dc3ce1d0
--- /dev/null
+++ b/spec/javascripts/issue_show/components/form_spec.js
@@ -0,0 +1,45 @@
+import Vue from 'vue';
+import formComponent from '~/issue_show/components/form.vue';
+
+describe('Inline edit form component', () => {
+  let vm;
+
+  beforeEach((done) => {
+    const Component = Vue.extend(formComponent);
+
+    vm = new Component({
+      propsData: {
+        canDestroy: true,
+        canMove: true,
+        formState: {
+          title: 'b',
+          description: 'a',
+          lockedWarningVisible: false,
+        },
+        markdownPreviewUrl: '/',
+        markdownDocs: '/',
+        projectsAutocompleteUrl: '/',
+      },
+    }).$mount();
+
+    Vue.nextTick(done);
+  });
+
+  it('hides locked warning by default', () => {
+    expect(
+      vm.$el.querySelector('.alert'),
+    ).toBeNull();
+  });
+
+  it('shows locked warning if formState is different', (done) => {
+    vm.formState.lockedWarningVisible = true;
+
+    Vue.nextTick(() => {
+      expect(
+        vm.$el.querySelector('.alert'),
+      ).not.toBeNull();
+
+      done();
+    });
+  });
+});